[Lldb-commits] [lldb] r280751 - *** This commit represents a complete reformatting of the LLDB source code
Kate Stone via lldb-commits
lldb-commits at lists.llvm.org
Tue Sep 6 13:58:36 PDT 2016
Modified: lldb/trunk/source/Expression/DWARFExpression.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/DWARFExpression.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/DWARFExpression.cpp (original)
+++ lldb/trunk/source/Expression/DWARFExpression.cpp Tue Sep 6 15:57:50 2016
@@ -16,13 +16,13 @@
#include <vector>
#include "lldb/Core/DataEncoder.h"
-#include "lldb/Core/dwarf.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/RegisterValue.h"
-#include "lldb/Core/StreamString.h"
#include "lldb/Core/Scalar.h"
-#include "lldb/Core/Value.h"
+#include "lldb/Core/StreamString.h"
#include "lldb/Core/VMRange.h"
+#include "lldb/Core/Value.h"
+#include "lldb/Core/dwarf.h"
#include "Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h"
#include "Plugins/ExpressionParser/Clang/ClangExpressionVariable.h"
@@ -46,628 +46,670 @@ using namespace lldb;
using namespace lldb_private;
static lldb::addr_t
-ReadAddressFromDebugAddrSection(const DWARFCompileUnit* dwarf_cu, uint32_t index)
-{
- uint32_t index_size = dwarf_cu->GetAddressByteSize();
- dw_offset_t addr_base = dwarf_cu->GetAddrBase();
- lldb::offset_t offset = addr_base + index * index_size;
- return dwarf_cu->GetSymbolFileDWARF()->get_debug_addr_data().GetMaxU64(&offset, index_size);
+ReadAddressFromDebugAddrSection(const DWARFCompileUnit *dwarf_cu,
+ uint32_t index) {
+ uint32_t index_size = dwarf_cu->GetAddressByteSize();
+ dw_offset_t addr_base = dwarf_cu->GetAddrBase();
+ lldb::offset_t offset = addr_base + index * index_size;
+ return dwarf_cu->GetSymbolFileDWARF()->get_debug_addr_data().GetMaxU64(
+ &offset, index_size);
}
//----------------------------------------------------------------------
// DWARFExpression constructor
//----------------------------------------------------------------------
-DWARFExpression::DWARFExpression(DWARFCompileUnit* dwarf_cu) :
- m_module_wp(),
- m_data(),
- m_dwarf_cu(dwarf_cu),
- m_reg_kind (eRegisterKindDWARF),
- m_loclist_slide (LLDB_INVALID_ADDRESS)
-{
-}
-
-DWARFExpression::DWARFExpression(const DWARFExpression& rhs) :
- m_module_wp(rhs.m_module_wp),
- m_data(rhs.m_data),
- m_dwarf_cu(rhs.m_dwarf_cu),
- m_reg_kind (rhs.m_reg_kind),
- m_loclist_slide(rhs.m_loclist_slide)
-{
-}
-
+DWARFExpression::DWARFExpression(DWARFCompileUnit *dwarf_cu)
+ : m_module_wp(), m_data(), m_dwarf_cu(dwarf_cu),
+ m_reg_kind(eRegisterKindDWARF), m_loclist_slide(LLDB_INVALID_ADDRESS) {}
+
+DWARFExpression::DWARFExpression(const DWARFExpression &rhs)
+ : m_module_wp(rhs.m_module_wp), m_data(rhs.m_data),
+ m_dwarf_cu(rhs.m_dwarf_cu), m_reg_kind(rhs.m_reg_kind),
+ m_loclist_slide(rhs.m_loclist_slide) {}
DWARFExpression::DWARFExpression(lldb::ModuleSP module_sp,
- const DataExtractor& data,
- DWARFCompileUnit* dwarf_cu,
+ const DataExtractor &data,
+ DWARFCompileUnit *dwarf_cu,
lldb::offset_t data_offset,
- lldb::offset_t data_length) :
- m_module_wp(),
- m_data(data, data_offset, data_length),
- m_dwarf_cu(dwarf_cu),
- m_reg_kind (eRegisterKindDWARF),
- m_loclist_slide(LLDB_INVALID_ADDRESS)
-{
- if (module_sp)
- m_module_wp = module_sp;
+ lldb::offset_t data_length)
+ : m_module_wp(), m_data(data, data_offset, data_length),
+ m_dwarf_cu(dwarf_cu), m_reg_kind(eRegisterKindDWARF),
+ m_loclist_slide(LLDB_INVALID_ADDRESS) {
+ if (module_sp)
+ m_module_wp = module_sp;
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
-DWARFExpression::~DWARFExpression()
-{
-}
-
-
-bool
-DWARFExpression::IsValid() const
-{
- return m_data.GetByteSize() > 0;
-}
-
-void
-DWARFExpression::SetOpcodeData (const DataExtractor& data)
-{
- m_data = data;
-}
-
-void
-DWARFExpression::CopyOpcodeData (lldb::ModuleSP module_sp, const DataExtractor& data, lldb::offset_t data_offset, lldb::offset_t data_length)
-{
- const uint8_t *bytes = data.PeekData(data_offset, data_length);
- if (bytes)
- {
- m_module_wp = module_sp;
- m_data.SetData(DataBufferSP(new DataBufferHeap(bytes, data_length)));
- m_data.SetByteOrder(data.GetByteOrder());
- m_data.SetAddressByteSize(data.GetAddressByteSize());
- }
-}
+DWARFExpression::~DWARFExpression() {}
-void
-DWARFExpression::CopyOpcodeData (const void *data,
- lldb::offset_t data_length,
- ByteOrder byte_order,
- uint8_t addr_byte_size)
-{
- if (data && data_length)
- {
- m_data.SetData(DataBufferSP(new DataBufferHeap(data, data_length)));
- m_data.SetByteOrder(byte_order);
- m_data.SetAddressByteSize(addr_byte_size);
- }
-}
+bool DWARFExpression::IsValid() const { return m_data.GetByteSize() > 0; }
-void
-DWARFExpression::CopyOpcodeData (uint64_t const_value,
- lldb::offset_t const_value_byte_size,
- uint8_t addr_byte_size)
-{
- if (const_value_byte_size)
- {
- m_data.SetData(DataBufferSP(new DataBufferHeap(&const_value, const_value_byte_size)));
- m_data.SetByteOrder(endian::InlHostByteOrder());
- m_data.SetAddressByteSize(addr_byte_size);
- }
+void DWARFExpression::SetOpcodeData(const DataExtractor &data) {
+ m_data = data;
}
-void
-DWARFExpression::SetOpcodeData (lldb::ModuleSP module_sp, const DataExtractor& data, lldb::offset_t data_offset, lldb::offset_t data_length)
-{
+void DWARFExpression::CopyOpcodeData(lldb::ModuleSP module_sp,
+ const DataExtractor &data,
+ lldb::offset_t data_offset,
+ lldb::offset_t data_length) {
+ const uint8_t *bytes = data.PeekData(data_offset, data_length);
+ if (bytes) {
m_module_wp = module_sp;
- m_data.SetData(data, data_offset, data_length);
-}
-
-void
-DWARFExpression::DumpLocation (Stream *s, lldb::offset_t offset, lldb::offset_t length, lldb::DescriptionLevel level, ABI *abi) const
-{
- if (!m_data.ValidOffsetForDataOfSize(offset, length))
- return;
- const lldb::offset_t start_offset = offset;
- const lldb::offset_t end_offset = offset + length;
- while (m_data.ValidOffset(offset) && offset < end_offset)
- {
- const lldb::offset_t op_offset = offset;
- const uint8_t op = m_data.GetU8(&offset);
-
- switch (level)
- {
- default:
- break;
-
- case lldb::eDescriptionLevelBrief:
- if (offset > start_offset)
- s->PutChar(' ');
- break;
-
- case lldb::eDescriptionLevelFull:
- case lldb::eDescriptionLevelVerbose:
- if (offset > start_offset)
- s->EOL();
- s->Indent();
- if (level == lldb::eDescriptionLevelFull)
- break;
- // Fall through for verbose and print offset and DW_OP prefix..
- s->Printf("0x%8.8" PRIx64 ": %s", op_offset, op >= DW_OP_APPLE_uninit ? "DW_OP_APPLE_" : "DW_OP_");
- break;
- }
-
- switch (op)
- {
- case DW_OP_addr: *s << "DW_OP_addr(" << m_data.GetAddress(&offset) << ") "; break; // 0x03 1 address
- case DW_OP_deref: *s << "DW_OP_deref"; break; // 0x06
- case DW_OP_const1u: s->Printf("DW_OP_const1u(0x%2.2x) ", m_data.GetU8(&offset)); break; // 0x08 1 1-byte constant
- case DW_OP_const1s: s->Printf("DW_OP_const1s(0x%2.2x) ", m_data.GetU8(&offset)); break; // 0x09 1 1-byte constant
- case DW_OP_const2u: s->Printf("DW_OP_const2u(0x%4.4x) ", m_data.GetU16(&offset)); break; // 0x0a 1 2-byte constant
- case DW_OP_const2s: s->Printf("DW_OP_const2s(0x%4.4x) ", m_data.GetU16(&offset)); break; // 0x0b 1 2-byte constant
- case DW_OP_const4u: s->Printf("DW_OP_const4u(0x%8.8x) ", m_data.GetU32(&offset)); break; // 0x0c 1 4-byte constant
- case DW_OP_const4s: s->Printf("DW_OP_const4s(0x%8.8x) ", m_data.GetU32(&offset)); break; // 0x0d 1 4-byte constant
- case DW_OP_const8u: s->Printf("DW_OP_const8u(0x%16.16" PRIx64 ") ", m_data.GetU64(&offset)); break; // 0x0e 1 8-byte constant
- case DW_OP_const8s: s->Printf("DW_OP_const8s(0x%16.16" PRIx64 ") ", m_data.GetU64(&offset)); break; // 0x0f 1 8-byte constant
- case DW_OP_constu: s->Printf("DW_OP_constu(0x%" PRIx64 ") ", m_data.GetULEB128(&offset)); break; // 0x10 1 ULEB128 constant
- case DW_OP_consts: s->Printf("DW_OP_consts(0x%" PRId64 ") ", m_data.GetSLEB128(&offset)); break; // 0x11 1 SLEB128 constant
- case DW_OP_dup: s->PutCString("DW_OP_dup"); break; // 0x12
- case DW_OP_drop: s->PutCString("DW_OP_drop"); break; // 0x13
- case DW_OP_over: s->PutCString("DW_OP_over"); break; // 0x14
- case DW_OP_pick: s->Printf("DW_OP_pick(0x%2.2x) ", m_data.GetU8(&offset)); break; // 0x15 1 1-byte stack index
- case DW_OP_swap: s->PutCString("DW_OP_swap"); break; // 0x16
- case DW_OP_rot: s->PutCString("DW_OP_rot"); break; // 0x17
- case DW_OP_xderef: s->PutCString("DW_OP_xderef"); break; // 0x18
- case DW_OP_abs: s->PutCString("DW_OP_abs"); break; // 0x19
- case DW_OP_and: s->PutCString("DW_OP_and"); break; // 0x1a
- case DW_OP_div: s->PutCString("DW_OP_div"); break; // 0x1b
- case DW_OP_minus: s->PutCString("DW_OP_minus"); break; // 0x1c
- case DW_OP_mod: s->PutCString("DW_OP_mod"); break; // 0x1d
- case DW_OP_mul: s->PutCString("DW_OP_mul"); break; // 0x1e
- case DW_OP_neg: s->PutCString("DW_OP_neg"); break; // 0x1f
- case DW_OP_not: s->PutCString("DW_OP_not"); break; // 0x20
- case DW_OP_or: s->PutCString("DW_OP_or"); break; // 0x21
- case DW_OP_plus: s->PutCString("DW_OP_plus"); break; // 0x22
- case DW_OP_plus_uconst: // 0x23 1 ULEB128 addend
- s->Printf("DW_OP_plus_uconst(0x%" PRIx64 ") ", m_data.GetULEB128(&offset));
- break;
-
- case DW_OP_shl: s->PutCString("DW_OP_shl"); break; // 0x24
- case DW_OP_shr: s->PutCString("DW_OP_shr"); break; // 0x25
- case DW_OP_shra: s->PutCString("DW_OP_shra"); break; // 0x26
- case DW_OP_xor: s->PutCString("DW_OP_xor"); break; // 0x27
- case DW_OP_skip: s->Printf("DW_OP_skip(0x%4.4x)", m_data.GetU16(&offset)); break; // 0x2f 1 signed 2-byte constant
- case DW_OP_bra: s->Printf("DW_OP_bra(0x%4.4x)", m_data.GetU16(&offset)); break; // 0x28 1 signed 2-byte constant
- case DW_OP_eq: s->PutCString("DW_OP_eq"); break; // 0x29
- case DW_OP_ge: s->PutCString("DW_OP_ge"); break; // 0x2a
- case DW_OP_gt: s->PutCString("DW_OP_gt"); break; // 0x2b
- case DW_OP_le: s->PutCString("DW_OP_le"); break; // 0x2c
- case DW_OP_lt: s->PutCString("DW_OP_lt"); break; // 0x2d
- case DW_OP_ne: s->PutCString("DW_OP_ne"); break; // 0x2e
-
- case DW_OP_lit0: // 0x30
- case DW_OP_lit1: // 0x31
- case DW_OP_lit2: // 0x32
- case DW_OP_lit3: // 0x33
- case DW_OP_lit4: // 0x34
- case DW_OP_lit5: // 0x35
- case DW_OP_lit6: // 0x36
- case DW_OP_lit7: // 0x37
- case DW_OP_lit8: // 0x38
- case DW_OP_lit9: // 0x39
- case DW_OP_lit10: // 0x3A
- case DW_OP_lit11: // 0x3B
- case DW_OP_lit12: // 0x3C
- case DW_OP_lit13: // 0x3D
- case DW_OP_lit14: // 0x3E
- case DW_OP_lit15: // 0x3F
- case DW_OP_lit16: // 0x40
- case DW_OP_lit17: // 0x41
- case DW_OP_lit18: // 0x42
- case DW_OP_lit19: // 0x43
- case DW_OP_lit20: // 0x44
- case DW_OP_lit21: // 0x45
- case DW_OP_lit22: // 0x46
- case DW_OP_lit23: // 0x47
- case DW_OP_lit24: // 0x48
- case DW_OP_lit25: // 0x49
- case DW_OP_lit26: // 0x4A
- case DW_OP_lit27: // 0x4B
- case DW_OP_lit28: // 0x4C
- case DW_OP_lit29: // 0x4D
- case DW_OP_lit30: // 0x4E
- case DW_OP_lit31: s->Printf("DW_OP_lit%i", op - DW_OP_lit0); break; // 0x4f
-
- case DW_OP_reg0: // 0x50
- case DW_OP_reg1: // 0x51
- case DW_OP_reg2: // 0x52
- case DW_OP_reg3: // 0x53
- case DW_OP_reg4: // 0x54
- case DW_OP_reg5: // 0x55
- case DW_OP_reg6: // 0x56
- case DW_OP_reg7: // 0x57
- case DW_OP_reg8: // 0x58
- case DW_OP_reg9: // 0x59
- case DW_OP_reg10: // 0x5A
- case DW_OP_reg11: // 0x5B
- case DW_OP_reg12: // 0x5C
- case DW_OP_reg13: // 0x5D
- case DW_OP_reg14: // 0x5E
- case DW_OP_reg15: // 0x5F
- case DW_OP_reg16: // 0x60
- case DW_OP_reg17: // 0x61
- case DW_OP_reg18: // 0x62
- case DW_OP_reg19: // 0x63
- case DW_OP_reg20: // 0x64
- case DW_OP_reg21: // 0x65
- case DW_OP_reg22: // 0x66
- case DW_OP_reg23: // 0x67
- case DW_OP_reg24: // 0x68
- case DW_OP_reg25: // 0x69
- case DW_OP_reg26: // 0x6A
- case DW_OP_reg27: // 0x6B
- case DW_OP_reg28: // 0x6C
- case DW_OP_reg29: // 0x6D
- case DW_OP_reg30: // 0x6E
- case DW_OP_reg31: // 0x6F
- {
- uint32_t reg_num = op - DW_OP_reg0;
- if (abi)
- {
- RegisterInfo reg_info;
- if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info))
- {
- if (reg_info.name)
- {
- s->PutCString (reg_info.name);
- break;
- }
- else if (reg_info.alt_name)
- {
- s->PutCString (reg_info.alt_name);
- break;
- }
- }
- }
- s->Printf("DW_OP_reg%u", reg_num); break;
- }
- break;
-
- case DW_OP_breg0:
- case DW_OP_breg1:
- case DW_OP_breg2:
- case DW_OP_breg3:
- case DW_OP_breg4:
- case DW_OP_breg5:
- case DW_OP_breg6:
- case DW_OP_breg7:
- case DW_OP_breg8:
- case DW_OP_breg9:
- case DW_OP_breg10:
- case DW_OP_breg11:
- case DW_OP_breg12:
- case DW_OP_breg13:
- case DW_OP_breg14:
- case DW_OP_breg15:
- case DW_OP_breg16:
- case DW_OP_breg17:
- case DW_OP_breg18:
- case DW_OP_breg19:
- case DW_OP_breg20:
- case DW_OP_breg21:
- case DW_OP_breg22:
- case DW_OP_breg23:
- case DW_OP_breg24:
- case DW_OP_breg25:
- case DW_OP_breg26:
- case DW_OP_breg27:
- case DW_OP_breg28:
- case DW_OP_breg29:
- case DW_OP_breg30:
- case DW_OP_breg31:
- {
- uint32_t reg_num = op - DW_OP_breg0;
- int64_t reg_offset = m_data.GetSLEB128(&offset);
- if (abi)
- {
- RegisterInfo reg_info;
- if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info))
- {
- if (reg_info.name)
- {
- s->Printf("[%s%+" PRIi64 "]", reg_info.name, reg_offset);
- break;
- }
- else if (reg_info.alt_name)
- {
- s->Printf("[%s%+" PRIi64 "]", reg_info.alt_name, reg_offset);
- break;
- }
- }
- }
- s->Printf("DW_OP_breg%i(0x%" PRIx64 ")", reg_num, reg_offset);
- }
- break;
-
- case DW_OP_regx: // 0x90 1 ULEB128 register
- {
- uint32_t reg_num = m_data.GetULEB128(&offset);
- if (abi)
- {
- RegisterInfo reg_info;
- if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info))
- {
- if (reg_info.name)
- {
- s->PutCString (reg_info.name);
- break;
- }
- else if (reg_info.alt_name)
- {
- s->PutCString (reg_info.alt_name);
- break;
- }
- }
- }
- s->Printf("DW_OP_regx(%" PRIu32 ")", reg_num); break;
- }
- break;
- case DW_OP_fbreg: // 0x91 1 SLEB128 offset
- s->Printf("DW_OP_fbreg(%" PRIi64 ")",m_data.GetSLEB128(&offset));
- break;
- case DW_OP_bregx: // 0x92 2 ULEB128 register followed by SLEB128 offset
- {
- uint32_t reg_num = m_data.GetULEB128(&offset);
- int64_t reg_offset = m_data.GetSLEB128(&offset);
- if (abi)
- {
- RegisterInfo reg_info;
- if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info))
- {
- if (reg_info.name)
- {
- s->Printf("[%s%+" PRIi64 "]", reg_info.name, reg_offset);
- break;
- }
- else if (reg_info.alt_name)
- {
- s->Printf("[%s%+" PRIi64 "]", reg_info.alt_name, reg_offset);
- break;
- }
- }
- }
- s->Printf("DW_OP_bregx(reg=%" PRIu32 ",offset=%" PRIi64 ")", reg_num, reg_offset);
- }
- break;
- case DW_OP_piece: // 0x93 1 ULEB128 size of piece addressed
- s->Printf("DW_OP_piece(0x%" PRIx64 ")", m_data.GetULEB128(&offset));
- break;
- case DW_OP_deref_size: // 0x94 1 1-byte size of data retrieved
- s->Printf("DW_OP_deref_size(0x%2.2x)", m_data.GetU8(&offset));
- break;
- case DW_OP_xderef_size: // 0x95 1 1-byte size of data retrieved
- s->Printf("DW_OP_xderef_size(0x%2.2x)", m_data.GetU8(&offset));
- break;
- case DW_OP_nop: s->PutCString("DW_OP_nop"); break; // 0x96
- case DW_OP_push_object_address: s->PutCString("DW_OP_push_object_address"); break; // 0x97 DWARF3
- case DW_OP_call2: // 0x98 DWARF3 1 2-byte offset of DIE
- s->Printf("DW_OP_call2(0x%4.4x)", m_data.GetU16(&offset));
- break;
- case DW_OP_call4: // 0x99 DWARF3 1 4-byte offset of DIE
- s->Printf("DW_OP_call4(0x%8.8x)", m_data.GetU32(&offset));
- break;
- case DW_OP_call_ref: // 0x9a DWARF3 1 4- or 8-byte offset of DIE
- s->Printf("DW_OP_call_ref(0x%8.8" PRIx64 ")", m_data.GetAddress(&offset));
- break;
-// case DW_OP_call_frame_cfa: s << "call_frame_cfa"; break; // 0x9c DWARF3
-// case DW_OP_bit_piece: // 0x9d DWARF3 2
-// s->Printf("DW_OP_bit_piece(0x%x, 0x%x)", m_data.GetULEB128(&offset), m_data.GetULEB128(&offset));
-// break;
-// case DW_OP_lo_user: s->PutCString("DW_OP_lo_user"); break; // 0xe0
-// case DW_OP_hi_user: s->PutCString("DW_OP_hi_user"); break; // 0xff
-// case DW_OP_APPLE_extern:
-// s->Printf("DW_OP_APPLE_extern(%" PRIu64 ")", m_data.GetULEB128(&offset));
-// break;
-// case DW_OP_APPLE_array_ref:
-// s->PutCString("DW_OP_APPLE_array_ref");
-// break;
- case DW_OP_form_tls_address:
- s->PutCString("DW_OP_form_tls_address"); // 0x9b
- break;
- case DW_OP_GNU_addr_index: // 0xfb
- s->Printf("DW_OP_GNU_addr_index(0x%" PRIx64 ")", m_data.GetULEB128(&offset));
- break;
- case DW_OP_GNU_const_index: // 0xfc
- s->Printf("DW_OP_GNU_const_index(0x%" PRIx64 ")", m_data.GetULEB128(&offset));
- break;
- case DW_OP_GNU_push_tls_address:
- s->PutCString("DW_OP_GNU_push_tls_address"); // 0xe0
- break;
- case DW_OP_APPLE_uninit:
- s->PutCString("DW_OP_APPLE_uninit"); // 0xF0
- break;
-// case DW_OP_APPLE_assign: // 0xF1 - pops value off and assigns it to second item on stack (2nd item must have assignable context)
-// s->PutCString("DW_OP_APPLE_assign");
-// break;
-// case DW_OP_APPLE_address_of: // 0xF2 - gets the address of the top stack item (top item must be a variable, or have value_type that is an address already)
-// s->PutCString("DW_OP_APPLE_address_of");
-// break;
-// case DW_OP_APPLE_value_of: // 0xF3 - pops the value off the stack and pushes the value of that object (top item must be a variable, or expression local)
-// s->PutCString("DW_OP_APPLE_value_of");
-// break;
-// case DW_OP_APPLE_deref_type: // 0xF4 - gets the address of the top stack item (top item must be a variable, or a clang type)
-// s->PutCString("DW_OP_APPLE_deref_type");
-// break;
-// case DW_OP_APPLE_expr_local: // 0xF5 - ULEB128 expression local index
-// s->Printf("DW_OP_APPLE_expr_local(%" PRIu64 ")", m_data.GetULEB128(&offset));
-// break;
-// case DW_OP_APPLE_constf: // 0xF6 - 1 byte float size, followed by constant float data
-// {
-// uint8_t float_length = m_data.GetU8(&offset);
-// s->Printf("DW_OP_APPLE_constf(<%u> ", float_length);
-// m_data.Dump(s, offset, eFormatHex, float_length, 1, UINT32_MAX, DW_INVALID_ADDRESS, 0, 0);
-// s->PutChar(')');
-// // Consume the float data
-// m_data.GetData(&offset, float_length);
-// }
-// break;
-// case DW_OP_APPLE_scalar_cast:
-// s->Printf("DW_OP_APPLE_scalar_cast(%s)", Scalar::GetValueTypeAsCString ((Scalar::Type)m_data.GetU8(&offset)));
-// break;
-// case DW_OP_APPLE_clang_cast:
-// {
-// clang::Type *clang_type = (clang::Type *)m_data.GetMaxU64(&offset, sizeof(void*));
-// s->Printf("DW_OP_APPLE_clang_cast(%p)", clang_type);
-// }
-// break;
-// case DW_OP_APPLE_clear:
-// s->PutCString("DW_OP_APPLE_clear");
-// break;
-// case DW_OP_APPLE_error: // 0xFF - Stops expression evaluation and returns an error (no args)
-// s->PutCString("DW_OP_APPLE_error");
-// break;
- }
- }
-}
-
-void
-DWARFExpression::SetLocationListSlide (addr_t slide)
-{
- m_loclist_slide = slide;
-}
-
-int
-DWARFExpression::GetRegisterKind ()
-{
- return m_reg_kind;
-}
-
-void
-DWARFExpression::SetRegisterKind (RegisterKind reg_kind)
-{
- m_reg_kind = reg_kind;
-}
-
-bool
-DWARFExpression::IsLocationList() const
-{
- return m_loclist_slide != LLDB_INVALID_ADDRESS;
-}
+ m_data.SetData(DataBufferSP(new DataBufferHeap(bytes, data_length)));
+ m_data.SetByteOrder(data.GetByteOrder());
+ m_data.SetAddressByteSize(data.GetAddressByteSize());
+ }
+}
+
+void DWARFExpression::CopyOpcodeData(const void *data,
+ lldb::offset_t data_length,
+ ByteOrder byte_order,
+ uint8_t addr_byte_size) {
+ if (data && data_length) {
+ m_data.SetData(DataBufferSP(new DataBufferHeap(data, data_length)));
+ m_data.SetByteOrder(byte_order);
+ m_data.SetAddressByteSize(addr_byte_size);
+ }
+}
+
+void DWARFExpression::CopyOpcodeData(uint64_t const_value,
+ lldb::offset_t const_value_byte_size,
+ uint8_t addr_byte_size) {
+ if (const_value_byte_size) {
+ m_data.SetData(
+ DataBufferSP(new DataBufferHeap(&const_value, const_value_byte_size)));
+ m_data.SetByteOrder(endian::InlHostByteOrder());
+ m_data.SetAddressByteSize(addr_byte_size);
+ }
+}
+
+void DWARFExpression::SetOpcodeData(lldb::ModuleSP module_sp,
+ const DataExtractor &data,
+ lldb::offset_t data_offset,
+ lldb::offset_t data_length) {
+ m_module_wp = module_sp;
+ m_data.SetData(data, data_offset, data_length);
+}
+
+void DWARFExpression::DumpLocation(Stream *s, lldb::offset_t offset,
+ lldb::offset_t length,
+ lldb::DescriptionLevel level,
+ ABI *abi) const {
+ if (!m_data.ValidOffsetForDataOfSize(offset, length))
+ return;
+ const lldb::offset_t start_offset = offset;
+ const lldb::offset_t end_offset = offset + length;
+ while (m_data.ValidOffset(offset) && offset < end_offset) {
+ const lldb::offset_t op_offset = offset;
+ const uint8_t op = m_data.GetU8(&offset);
-void
-DWARFExpression::GetDescription (Stream *s, lldb::DescriptionLevel level, addr_t location_list_base_addr, ABI *abi) const
-{
- if (IsLocationList())
- {
- // We have a location list
- lldb::offset_t offset = 0;
- uint32_t count = 0;
- addr_t curr_base_addr = location_list_base_addr;
- while (m_data.ValidOffset(offset))
- {
- addr_t begin_addr_offset = LLDB_INVALID_ADDRESS;
- addr_t end_addr_offset = LLDB_INVALID_ADDRESS;
- if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset, begin_addr_offset, end_addr_offset))
- break;
-
- if (begin_addr_offset == 0 && end_addr_offset == 0)
- break;
-
- if (begin_addr_offset < end_addr_offset)
- {
- if (count > 0)
- s->PutCString(", ");
- VMRange addr_range(curr_base_addr + begin_addr_offset, curr_base_addr + end_addr_offset);
- addr_range.Dump(s, 0, 8);
- s->PutChar('{');
- lldb::offset_t location_length = m_data.GetU16(&offset);
- DumpLocation (s, offset, location_length, level, abi);
- s->PutChar('}');
- offset += location_length;
- }
- else
- {
- if ((m_data.GetAddressByteSize() == 4 && (begin_addr_offset == UINT32_MAX)) ||
- (m_data.GetAddressByteSize() == 8 && (begin_addr_offset == UINT64_MAX)))
- {
- curr_base_addr = end_addr_offset + location_list_base_addr;
- // We have a new base address
- if (count > 0)
- s->PutCString(", ");
- *s << "base_addr = " << end_addr_offset;
- }
- }
+ switch (level) {
+ default:
+ break;
- count++;
+ case lldb::eDescriptionLevelBrief:
+ if (offset > start_offset)
+ s->PutChar(' ');
+ break;
+
+ case lldb::eDescriptionLevelFull:
+ case lldb::eDescriptionLevelVerbose:
+ if (offset > start_offset)
+ s->EOL();
+ s->Indent();
+ if (level == lldb::eDescriptionLevelFull)
+ break;
+ // Fall through for verbose and print offset and DW_OP prefix..
+ s->Printf("0x%8.8" PRIx64 ": %s", op_offset,
+ op >= DW_OP_APPLE_uninit ? "DW_OP_APPLE_" : "DW_OP_");
+ break;
+ }
+
+ switch (op) {
+ case DW_OP_addr:
+ *s << "DW_OP_addr(" << m_data.GetAddress(&offset) << ") ";
+ break; // 0x03 1 address
+ case DW_OP_deref:
+ *s << "DW_OP_deref";
+ break; // 0x06
+ case DW_OP_const1u:
+ s->Printf("DW_OP_const1u(0x%2.2x) ", m_data.GetU8(&offset));
+ break; // 0x08 1 1-byte constant
+ case DW_OP_const1s:
+ s->Printf("DW_OP_const1s(0x%2.2x) ", m_data.GetU8(&offset));
+ break; // 0x09 1 1-byte constant
+ case DW_OP_const2u:
+ s->Printf("DW_OP_const2u(0x%4.4x) ", m_data.GetU16(&offset));
+ break; // 0x0a 1 2-byte constant
+ case DW_OP_const2s:
+ s->Printf("DW_OP_const2s(0x%4.4x) ", m_data.GetU16(&offset));
+ break; // 0x0b 1 2-byte constant
+ case DW_OP_const4u:
+ s->Printf("DW_OP_const4u(0x%8.8x) ", m_data.GetU32(&offset));
+ break; // 0x0c 1 4-byte constant
+ case DW_OP_const4s:
+ s->Printf("DW_OP_const4s(0x%8.8x) ", m_data.GetU32(&offset));
+ break; // 0x0d 1 4-byte constant
+ case DW_OP_const8u:
+ s->Printf("DW_OP_const8u(0x%16.16" PRIx64 ") ", m_data.GetU64(&offset));
+ break; // 0x0e 1 8-byte constant
+ case DW_OP_const8s:
+ s->Printf("DW_OP_const8s(0x%16.16" PRIx64 ") ", m_data.GetU64(&offset));
+ break; // 0x0f 1 8-byte constant
+ case DW_OP_constu:
+ s->Printf("DW_OP_constu(0x%" PRIx64 ") ", m_data.GetULEB128(&offset));
+ break; // 0x10 1 ULEB128 constant
+ case DW_OP_consts:
+ s->Printf("DW_OP_consts(0x%" PRId64 ") ", m_data.GetSLEB128(&offset));
+ break; // 0x11 1 SLEB128 constant
+ case DW_OP_dup:
+ s->PutCString("DW_OP_dup");
+ break; // 0x12
+ case DW_OP_drop:
+ s->PutCString("DW_OP_drop");
+ break; // 0x13
+ case DW_OP_over:
+ s->PutCString("DW_OP_over");
+ break; // 0x14
+ case DW_OP_pick:
+ s->Printf("DW_OP_pick(0x%2.2x) ", m_data.GetU8(&offset));
+ break; // 0x15 1 1-byte stack index
+ case DW_OP_swap:
+ s->PutCString("DW_OP_swap");
+ break; // 0x16
+ case DW_OP_rot:
+ s->PutCString("DW_OP_rot");
+ break; // 0x17
+ case DW_OP_xderef:
+ s->PutCString("DW_OP_xderef");
+ break; // 0x18
+ case DW_OP_abs:
+ s->PutCString("DW_OP_abs");
+ break; // 0x19
+ case DW_OP_and:
+ s->PutCString("DW_OP_and");
+ break; // 0x1a
+ case DW_OP_div:
+ s->PutCString("DW_OP_div");
+ break; // 0x1b
+ case DW_OP_minus:
+ s->PutCString("DW_OP_minus");
+ break; // 0x1c
+ case DW_OP_mod:
+ s->PutCString("DW_OP_mod");
+ break; // 0x1d
+ case DW_OP_mul:
+ s->PutCString("DW_OP_mul");
+ break; // 0x1e
+ case DW_OP_neg:
+ s->PutCString("DW_OP_neg");
+ break; // 0x1f
+ case DW_OP_not:
+ s->PutCString("DW_OP_not");
+ break; // 0x20
+ case DW_OP_or:
+ s->PutCString("DW_OP_or");
+ break; // 0x21
+ case DW_OP_plus:
+ s->PutCString("DW_OP_plus");
+ break; // 0x22
+ case DW_OP_plus_uconst: // 0x23 1 ULEB128 addend
+ s->Printf("DW_OP_plus_uconst(0x%" PRIx64 ") ",
+ m_data.GetULEB128(&offset));
+ break;
+
+ case DW_OP_shl:
+ s->PutCString("DW_OP_shl");
+ break; // 0x24
+ case DW_OP_shr:
+ s->PutCString("DW_OP_shr");
+ break; // 0x25
+ case DW_OP_shra:
+ s->PutCString("DW_OP_shra");
+ break; // 0x26
+ case DW_OP_xor:
+ s->PutCString("DW_OP_xor");
+ break; // 0x27
+ case DW_OP_skip:
+ s->Printf("DW_OP_skip(0x%4.4x)", m_data.GetU16(&offset));
+ break; // 0x2f 1 signed 2-byte constant
+ case DW_OP_bra:
+ s->Printf("DW_OP_bra(0x%4.4x)", m_data.GetU16(&offset));
+ break; // 0x28 1 signed 2-byte constant
+ case DW_OP_eq:
+ s->PutCString("DW_OP_eq");
+ break; // 0x29
+ case DW_OP_ge:
+ s->PutCString("DW_OP_ge");
+ break; // 0x2a
+ case DW_OP_gt:
+ s->PutCString("DW_OP_gt");
+ break; // 0x2b
+ case DW_OP_le:
+ s->PutCString("DW_OP_le");
+ break; // 0x2c
+ case DW_OP_lt:
+ s->PutCString("DW_OP_lt");
+ break; // 0x2d
+ case DW_OP_ne:
+ s->PutCString("DW_OP_ne");
+ break; // 0x2e
+
+ case DW_OP_lit0: // 0x30
+ case DW_OP_lit1: // 0x31
+ case DW_OP_lit2: // 0x32
+ case DW_OP_lit3: // 0x33
+ case DW_OP_lit4: // 0x34
+ case DW_OP_lit5: // 0x35
+ case DW_OP_lit6: // 0x36
+ case DW_OP_lit7: // 0x37
+ case DW_OP_lit8: // 0x38
+ case DW_OP_lit9: // 0x39
+ case DW_OP_lit10: // 0x3A
+ case DW_OP_lit11: // 0x3B
+ case DW_OP_lit12: // 0x3C
+ case DW_OP_lit13: // 0x3D
+ case DW_OP_lit14: // 0x3E
+ case DW_OP_lit15: // 0x3F
+ case DW_OP_lit16: // 0x40
+ case DW_OP_lit17: // 0x41
+ case DW_OP_lit18: // 0x42
+ case DW_OP_lit19: // 0x43
+ case DW_OP_lit20: // 0x44
+ case DW_OP_lit21: // 0x45
+ case DW_OP_lit22: // 0x46
+ case DW_OP_lit23: // 0x47
+ case DW_OP_lit24: // 0x48
+ case DW_OP_lit25: // 0x49
+ case DW_OP_lit26: // 0x4A
+ case DW_OP_lit27: // 0x4B
+ case DW_OP_lit28: // 0x4C
+ case DW_OP_lit29: // 0x4D
+ case DW_OP_lit30: // 0x4E
+ case DW_OP_lit31:
+ s->Printf("DW_OP_lit%i", op - DW_OP_lit0);
+ break; // 0x4f
+
+ case DW_OP_reg0: // 0x50
+ case DW_OP_reg1: // 0x51
+ case DW_OP_reg2: // 0x52
+ case DW_OP_reg3: // 0x53
+ case DW_OP_reg4: // 0x54
+ case DW_OP_reg5: // 0x55
+ case DW_OP_reg6: // 0x56
+ case DW_OP_reg7: // 0x57
+ case DW_OP_reg8: // 0x58
+ case DW_OP_reg9: // 0x59
+ case DW_OP_reg10: // 0x5A
+ case DW_OP_reg11: // 0x5B
+ case DW_OP_reg12: // 0x5C
+ case DW_OP_reg13: // 0x5D
+ case DW_OP_reg14: // 0x5E
+ case DW_OP_reg15: // 0x5F
+ case DW_OP_reg16: // 0x60
+ case DW_OP_reg17: // 0x61
+ case DW_OP_reg18: // 0x62
+ case DW_OP_reg19: // 0x63
+ case DW_OP_reg20: // 0x64
+ case DW_OP_reg21: // 0x65
+ case DW_OP_reg22: // 0x66
+ case DW_OP_reg23: // 0x67
+ case DW_OP_reg24: // 0x68
+ case DW_OP_reg25: // 0x69
+ case DW_OP_reg26: // 0x6A
+ case DW_OP_reg27: // 0x6B
+ case DW_OP_reg28: // 0x6C
+ case DW_OP_reg29: // 0x6D
+ case DW_OP_reg30: // 0x6E
+ case DW_OP_reg31: // 0x6F
+ {
+ uint32_t reg_num = op - DW_OP_reg0;
+ if (abi) {
+ RegisterInfo reg_info;
+ if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info)) {
+ if (reg_info.name) {
+ s->PutCString(reg_info.name);
+ break;
+ } else if (reg_info.alt_name) {
+ s->PutCString(reg_info.alt_name);
+ break;
+ }
+ }
+ }
+ s->Printf("DW_OP_reg%u", reg_num);
+ break;
+ } break;
+
+ case DW_OP_breg0:
+ case DW_OP_breg1:
+ case DW_OP_breg2:
+ case DW_OP_breg3:
+ case DW_OP_breg4:
+ case DW_OP_breg5:
+ case DW_OP_breg6:
+ case DW_OP_breg7:
+ case DW_OP_breg8:
+ case DW_OP_breg9:
+ case DW_OP_breg10:
+ case DW_OP_breg11:
+ case DW_OP_breg12:
+ case DW_OP_breg13:
+ case DW_OP_breg14:
+ case DW_OP_breg15:
+ case DW_OP_breg16:
+ case DW_OP_breg17:
+ case DW_OP_breg18:
+ case DW_OP_breg19:
+ case DW_OP_breg20:
+ case DW_OP_breg21:
+ case DW_OP_breg22:
+ case DW_OP_breg23:
+ case DW_OP_breg24:
+ case DW_OP_breg25:
+ case DW_OP_breg26:
+ case DW_OP_breg27:
+ case DW_OP_breg28:
+ case DW_OP_breg29:
+ case DW_OP_breg30:
+ case DW_OP_breg31: {
+ uint32_t reg_num = op - DW_OP_breg0;
+ int64_t reg_offset = m_data.GetSLEB128(&offset);
+ if (abi) {
+ RegisterInfo reg_info;
+ if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info)) {
+ if (reg_info.name) {
+ s->Printf("[%s%+" PRIi64 "]", reg_info.name, reg_offset);
+ break;
+ } else if (reg_info.alt_name) {
+ s->Printf("[%s%+" PRIi64 "]", reg_info.alt_name, reg_offset);
+ break;
+ }
+ }
+ }
+ s->Printf("DW_OP_breg%i(0x%" PRIx64 ")", reg_num, reg_offset);
+ } break;
+
+ case DW_OP_regx: // 0x90 1 ULEB128 register
+ {
+ uint32_t reg_num = m_data.GetULEB128(&offset);
+ if (abi) {
+ RegisterInfo reg_info;
+ if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info)) {
+ if (reg_info.name) {
+ s->PutCString(reg_info.name);
+ break;
+ } else if (reg_info.alt_name) {
+ s->PutCString(reg_info.alt_name);
+ break;
+ }
+ }
+ }
+ s->Printf("DW_OP_regx(%" PRIu32 ")", reg_num);
+ break;
+ } break;
+ case DW_OP_fbreg: // 0x91 1 SLEB128 offset
+ s->Printf("DW_OP_fbreg(%" PRIi64 ")", m_data.GetSLEB128(&offset));
+ break;
+ case DW_OP_bregx: // 0x92 2 ULEB128 register followed by SLEB128 offset
+ {
+ uint32_t reg_num = m_data.GetULEB128(&offset);
+ int64_t reg_offset = m_data.GetSLEB128(&offset);
+ if (abi) {
+ RegisterInfo reg_info;
+ if (abi->GetRegisterInfoByKind(m_reg_kind, reg_num, reg_info)) {
+ if (reg_info.name) {
+ s->Printf("[%s%+" PRIi64 "]", reg_info.name, reg_offset);
+ break;
+ } else if (reg_info.alt_name) {
+ s->Printf("[%s%+" PRIi64 "]", reg_info.alt_name, reg_offset);
+ break;
+ }
+ }
+ }
+ s->Printf("DW_OP_bregx(reg=%" PRIu32 ",offset=%" PRIi64 ")", reg_num,
+ reg_offset);
+ } break;
+ case DW_OP_piece: // 0x93 1 ULEB128 size of piece addressed
+ s->Printf("DW_OP_piece(0x%" PRIx64 ")", m_data.GetULEB128(&offset));
+ break;
+ case DW_OP_deref_size: // 0x94 1 1-byte size of data retrieved
+ s->Printf("DW_OP_deref_size(0x%2.2x)", m_data.GetU8(&offset));
+ break;
+ case DW_OP_xderef_size: // 0x95 1 1-byte size of data retrieved
+ s->Printf("DW_OP_xderef_size(0x%2.2x)", m_data.GetU8(&offset));
+ break;
+ case DW_OP_nop:
+ s->PutCString("DW_OP_nop");
+ break; // 0x96
+ case DW_OP_push_object_address:
+ s->PutCString("DW_OP_push_object_address");
+ break; // 0x97 DWARF3
+ case DW_OP_call2: // 0x98 DWARF3 1 2-byte offset of DIE
+ s->Printf("DW_OP_call2(0x%4.4x)", m_data.GetU16(&offset));
+ break;
+ case DW_OP_call4: // 0x99 DWARF3 1 4-byte offset of DIE
+ s->Printf("DW_OP_call4(0x%8.8x)", m_data.GetU32(&offset));
+ break;
+ case DW_OP_call_ref: // 0x9a DWARF3 1 4- or 8-byte offset of DIE
+ s->Printf("DW_OP_call_ref(0x%8.8" PRIx64 ")", m_data.GetAddress(&offset));
+ break;
+ // case DW_OP_call_frame_cfa: s << "call_frame_cfa"; break;
+ // // 0x9c DWARF3
+ // case DW_OP_bit_piece: // 0x9d DWARF3 2
+ // s->Printf("DW_OP_bit_piece(0x%x, 0x%x)",
+ // m_data.GetULEB128(&offset), m_data.GetULEB128(&offset));
+ // break;
+ // case DW_OP_lo_user: s->PutCString("DW_OP_lo_user"); break;
+ // // 0xe0
+ // case DW_OP_hi_user: s->PutCString("DW_OP_hi_user"); break;
+ // // 0xff
+ // case DW_OP_APPLE_extern:
+ // s->Printf("DW_OP_APPLE_extern(%" PRIu64 ")",
+ // m_data.GetULEB128(&offset));
+ // break;
+ // case DW_OP_APPLE_array_ref:
+ // s->PutCString("DW_OP_APPLE_array_ref");
+ // break;
+ case DW_OP_form_tls_address:
+ s->PutCString("DW_OP_form_tls_address"); // 0x9b
+ break;
+ case DW_OP_GNU_addr_index: // 0xfb
+ s->Printf("DW_OP_GNU_addr_index(0x%" PRIx64 ")",
+ m_data.GetULEB128(&offset));
+ break;
+ case DW_OP_GNU_const_index: // 0xfc
+ s->Printf("DW_OP_GNU_const_index(0x%" PRIx64 ")",
+ m_data.GetULEB128(&offset));
+ break;
+ case DW_OP_GNU_push_tls_address:
+ s->PutCString("DW_OP_GNU_push_tls_address"); // 0xe0
+ break;
+ case DW_OP_APPLE_uninit:
+ s->PutCString("DW_OP_APPLE_uninit"); // 0xF0
+ break;
+ // case DW_OP_APPLE_assign: // 0xF1 - pops value off and
+ // assigns it to second item on stack (2nd item must have
+ // assignable context)
+ // s->PutCString("DW_OP_APPLE_assign");
+ // break;
+ // case DW_OP_APPLE_address_of: // 0xF2 - gets the address of
+ // the top stack item (top item must be a variable, or have
+ // value_type that is an address already)
+ // s->PutCString("DW_OP_APPLE_address_of");
+ // break;
+ // case DW_OP_APPLE_value_of: // 0xF3 - pops the value off the
+ // stack and pushes the value of that object (top item must be a
+ // variable, or expression local)
+ // s->PutCString("DW_OP_APPLE_value_of");
+ // break;
+ // case DW_OP_APPLE_deref_type: // 0xF4 - gets the address of
+ // the top stack item (top item must be a variable, or a clang
+ // type)
+ // s->PutCString("DW_OP_APPLE_deref_type");
+ // break;
+ // case DW_OP_APPLE_expr_local: // 0xF5 - ULEB128 expression
+ // local index
+ // s->Printf("DW_OP_APPLE_expr_local(%" PRIu64 ")",
+ // m_data.GetULEB128(&offset));
+ // break;
+ // case DW_OP_APPLE_constf: // 0xF6 - 1 byte float size,
+ // followed by constant float data
+ // {
+ // uint8_t float_length = m_data.GetU8(&offset);
+ // s->Printf("DW_OP_APPLE_constf(<%u> ", float_length);
+ // m_data.Dump(s, offset, eFormatHex, float_length, 1,
+ // UINT32_MAX, DW_INVALID_ADDRESS, 0, 0);
+ // s->PutChar(')');
+ // // Consume the float data
+ // m_data.GetData(&offset, float_length);
+ // }
+ // break;
+ // case DW_OP_APPLE_scalar_cast:
+ // s->Printf("DW_OP_APPLE_scalar_cast(%s)",
+ // Scalar::GetValueTypeAsCString
+ // ((Scalar::Type)m_data.GetU8(&offset)));
+ // break;
+ // case DW_OP_APPLE_clang_cast:
+ // {
+ // clang::Type *clang_type = (clang::Type
+ // *)m_data.GetMaxU64(&offset, sizeof(void*));
+ // s->Printf("DW_OP_APPLE_clang_cast(%p)", clang_type);
+ // }
+ // break;
+ // case DW_OP_APPLE_clear:
+ // s->PutCString("DW_OP_APPLE_clear");
+ // break;
+ // case DW_OP_APPLE_error: // 0xFF - Stops expression
+ // evaluation and returns an error (no args)
+ // s->PutCString("DW_OP_APPLE_error");
+ // break;
+ }
+ }
+}
+
+void DWARFExpression::SetLocationListSlide(addr_t slide) {
+ m_loclist_slide = slide;
+}
+
+int DWARFExpression::GetRegisterKind() { return m_reg_kind; }
+
+void DWARFExpression::SetRegisterKind(RegisterKind reg_kind) {
+ m_reg_kind = reg_kind;
+}
+
+bool DWARFExpression::IsLocationList() const {
+ return m_loclist_slide != LLDB_INVALID_ADDRESS;
+}
+
+void DWARFExpression::GetDescription(Stream *s, lldb::DescriptionLevel level,
+ addr_t location_list_base_addr,
+ ABI *abi) const {
+ if (IsLocationList()) {
+ // We have a location list
+ lldb::offset_t offset = 0;
+ uint32_t count = 0;
+ addr_t curr_base_addr = location_list_base_addr;
+ while (m_data.ValidOffset(offset)) {
+ addr_t begin_addr_offset = LLDB_INVALID_ADDRESS;
+ addr_t end_addr_offset = LLDB_INVALID_ADDRESS;
+ if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset,
+ begin_addr_offset, end_addr_offset))
+ break;
+
+ if (begin_addr_offset == 0 && end_addr_offset == 0)
+ break;
+
+ if (begin_addr_offset < end_addr_offset) {
+ if (count > 0)
+ s->PutCString(", ");
+ VMRange addr_range(curr_base_addr + begin_addr_offset,
+ curr_base_addr + end_addr_offset);
+ addr_range.Dump(s, 0, 8);
+ s->PutChar('{');
+ lldb::offset_t location_length = m_data.GetU16(&offset);
+ DumpLocation(s, offset, location_length, level, abi);
+ s->PutChar('}');
+ offset += location_length;
+ } else {
+ if ((m_data.GetAddressByteSize() == 4 &&
+ (begin_addr_offset == UINT32_MAX)) ||
+ (m_data.GetAddressByteSize() == 8 &&
+ (begin_addr_offset == UINT64_MAX))) {
+ curr_base_addr = end_addr_offset + location_list_base_addr;
+ // We have a new base address
+ if (count > 0)
+ s->PutCString(", ");
+ *s << "base_addr = " << end_addr_offset;
+ }
+ }
+
+ count++;
+ }
+ } else {
+ // We have a normal location that contains DW_OP location opcodes
+ DumpLocation(s, 0, m_data.GetByteSize(), level, abi);
+ }
+}
+
+static bool ReadRegisterValueAsScalar(RegisterContext *reg_ctx,
+ lldb::RegisterKind reg_kind,
+ uint32_t reg_num, Error *error_ptr,
+ Value &value) {
+ if (reg_ctx == NULL) {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat("No register context in frame.\n");
+ } else {
+ uint32_t native_reg =
+ reg_ctx->ConvertRegisterKindToRegisterNumber(reg_kind, reg_num);
+ if (native_reg == LLDB_INVALID_REGNUM) {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat("Unable to convert register "
+ "kind=%u reg_num=%u to a native "
+ "register number.\n",
+ reg_kind, reg_num);
+ } else {
+ const RegisterInfo *reg_info =
+ reg_ctx->GetRegisterInfoAtIndex(native_reg);
+ RegisterValue reg_value;
+ if (reg_ctx->ReadRegister(reg_info, reg_value)) {
+ if (reg_value.GetScalarValue(value.GetScalar())) {
+ value.SetValueType(Value::eValueTypeScalar);
+ value.SetContext(Value::eContextTypeRegisterInfo,
+ const_cast<RegisterInfo *>(reg_info));
+ if (error_ptr)
+ error_ptr->Clear();
+ return true;
+ } else {
+ // If we get this error, then we need to implement a value
+ // buffer in the dwarf expression evaluation function...
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "register %s can't be converted to a scalar value",
+ reg_info->name);
}
- }
- else
- {
- // We have a normal location that contains DW_OP location opcodes
- DumpLocation (s, 0, m_data.GetByteSize(), level, abi);
- }
-}
-
-static bool
-ReadRegisterValueAsScalar
-(
- RegisterContext *reg_ctx,
- lldb::RegisterKind reg_kind,
- uint32_t reg_num,
- Error *error_ptr,
- Value &value
-)
-{
- if (reg_ctx == NULL)
- {
+ } else {
if (error_ptr)
- error_ptr->SetErrorStringWithFormat("No register context in frame.\n");
+ error_ptr->SetErrorStringWithFormat("register %s is not available",
+ reg_info->name);
+ }
}
- else
- {
- uint32_t native_reg = reg_ctx->ConvertRegisterKindToRegisterNumber(reg_kind, reg_num);
- if (native_reg == LLDB_INVALID_REGNUM)
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat("Unable to convert register kind=%u reg_num=%u to a native register number.\n", reg_kind, reg_num);
- }
- else
- {
- const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoAtIndex(native_reg);
- RegisterValue reg_value;
- if (reg_ctx->ReadRegister (reg_info, reg_value))
- {
- if (reg_value.GetScalarValue(value.GetScalar()))
- {
- value.SetValueType (Value::eValueTypeScalar);
- value.SetContext (Value::eContextTypeRegisterInfo,
- const_cast<RegisterInfo *>(reg_info));
- if (error_ptr)
- error_ptr->Clear();
- return true;
- }
- else
- {
- // If we get this error, then we need to implement a value
- // buffer in the dwarf expression evaluation function...
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("register %s can't be converted to a scalar value",
- reg_info->name);
- }
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat("register %s is not available", reg_info->name);
- }
- }
- }
- return false;
+ }
+ return false;
}
-//bool
-//DWARFExpression::LocationListContainsLoadAddress (Process* process, const Address &addr) const
+// bool
+// DWARFExpression::LocationListContainsLoadAddress (Process* process, const
+// Address &addr) const
//{
-// return LocationListContainsLoadAddress(process, addr.GetLoadAddress(process));
+// return LocationListContainsLoadAddress(process,
+// addr.GetLoadAddress(process));
//}
//
-//bool
-//DWARFExpression::LocationListContainsLoadAddress (Process* process, addr_t load_addr) const
+// bool
+// DWARFExpression::LocationListContainsLoadAddress (Process* process, addr_t
+// load_addr) const
//{
// if (load_addr == LLDB_INVALID_ADDRESS)
// return false;
@@ -703,2784 +745,2657 @@ ReadRegisterValueAsScalar
// return false;
//}
-static offset_t
-GetOpcodeDataSize (const DataExtractor &data, const lldb::offset_t data_offset, const uint8_t op)
-{
- lldb::offset_t offset = data_offset;
- switch (op)
- {
- case DW_OP_addr:
- case DW_OP_call_ref: // 0x9a 1 address sized offset of DIE (DWARF3)
- return data.GetAddressByteSize();
-
- // Opcodes with no arguments
- case DW_OP_deref: // 0x06
- case DW_OP_dup: // 0x12
- case DW_OP_drop: // 0x13
- case DW_OP_over: // 0x14
- case DW_OP_swap: // 0x16
- case DW_OP_rot: // 0x17
- case DW_OP_xderef: // 0x18
- case DW_OP_abs: // 0x19
- case DW_OP_and: // 0x1a
- case DW_OP_div: // 0x1b
- case DW_OP_minus: // 0x1c
- case DW_OP_mod: // 0x1d
- case DW_OP_mul: // 0x1e
- case DW_OP_neg: // 0x1f
- case DW_OP_not: // 0x20
- case DW_OP_or: // 0x21
- case DW_OP_plus: // 0x22
- case DW_OP_shl: // 0x24
- case DW_OP_shr: // 0x25
- case DW_OP_shra: // 0x26
- case DW_OP_xor: // 0x27
- case DW_OP_eq: // 0x29
- case DW_OP_ge: // 0x2a
- case DW_OP_gt: // 0x2b
- case DW_OP_le: // 0x2c
- case DW_OP_lt: // 0x2d
- case DW_OP_ne: // 0x2e
- case DW_OP_lit0: // 0x30
- case DW_OP_lit1: // 0x31
- case DW_OP_lit2: // 0x32
- case DW_OP_lit3: // 0x33
- case DW_OP_lit4: // 0x34
- case DW_OP_lit5: // 0x35
- case DW_OP_lit6: // 0x36
- case DW_OP_lit7: // 0x37
- case DW_OP_lit8: // 0x38
- case DW_OP_lit9: // 0x39
- case DW_OP_lit10: // 0x3A
- case DW_OP_lit11: // 0x3B
- case DW_OP_lit12: // 0x3C
- case DW_OP_lit13: // 0x3D
- case DW_OP_lit14: // 0x3E
- case DW_OP_lit15: // 0x3F
- case DW_OP_lit16: // 0x40
- case DW_OP_lit17: // 0x41
- case DW_OP_lit18: // 0x42
- case DW_OP_lit19: // 0x43
- case DW_OP_lit20: // 0x44
- case DW_OP_lit21: // 0x45
- case DW_OP_lit22: // 0x46
- case DW_OP_lit23: // 0x47
- case DW_OP_lit24: // 0x48
- case DW_OP_lit25: // 0x49
- case DW_OP_lit26: // 0x4A
- case DW_OP_lit27: // 0x4B
- case DW_OP_lit28: // 0x4C
- case DW_OP_lit29: // 0x4D
- case DW_OP_lit30: // 0x4E
- case DW_OP_lit31: // 0x4f
- case DW_OP_reg0: // 0x50
- case DW_OP_reg1: // 0x51
- case DW_OP_reg2: // 0x52
- case DW_OP_reg3: // 0x53
- case DW_OP_reg4: // 0x54
- case DW_OP_reg5: // 0x55
- case DW_OP_reg6: // 0x56
- case DW_OP_reg7: // 0x57
- case DW_OP_reg8: // 0x58
- case DW_OP_reg9: // 0x59
- case DW_OP_reg10: // 0x5A
- case DW_OP_reg11: // 0x5B
- case DW_OP_reg12: // 0x5C
- case DW_OP_reg13: // 0x5D
- case DW_OP_reg14: // 0x5E
- case DW_OP_reg15: // 0x5F
- case DW_OP_reg16: // 0x60
- case DW_OP_reg17: // 0x61
- case DW_OP_reg18: // 0x62
- case DW_OP_reg19: // 0x63
- case DW_OP_reg20: // 0x64
- case DW_OP_reg21: // 0x65
- case DW_OP_reg22: // 0x66
- case DW_OP_reg23: // 0x67
- case DW_OP_reg24: // 0x68
- case DW_OP_reg25: // 0x69
- case DW_OP_reg26: // 0x6A
- case DW_OP_reg27: // 0x6B
- case DW_OP_reg28: // 0x6C
- case DW_OP_reg29: // 0x6D
- case DW_OP_reg30: // 0x6E
- case DW_OP_reg31: // 0x6F
- case DW_OP_nop: // 0x96
- case DW_OP_push_object_address: // 0x97 DWARF3
- case DW_OP_form_tls_address: // 0x9b DWARF3
- case DW_OP_call_frame_cfa: // 0x9c DWARF3
- case DW_OP_stack_value: // 0x9f DWARF4
- case DW_OP_GNU_push_tls_address: // 0xe0 GNU extension
- return 0;
-
- // Opcodes with a single 1 byte arguments
- case DW_OP_const1u: // 0x08 1 1-byte constant
- case DW_OP_const1s: // 0x09 1 1-byte constant
- case DW_OP_pick: // 0x15 1 1-byte stack index
- case DW_OP_deref_size: // 0x94 1 1-byte size of data retrieved
- case DW_OP_xderef_size: // 0x95 1 1-byte size of data retrieved
- return 1;
-
- // Opcodes with a single 2 byte arguments
- case DW_OP_const2u: // 0x0a 1 2-byte constant
- case DW_OP_const2s: // 0x0b 1 2-byte constant
- case DW_OP_skip: // 0x2f 1 signed 2-byte constant
- case DW_OP_bra: // 0x28 1 signed 2-byte constant
- case DW_OP_call2: // 0x98 1 2-byte offset of DIE (DWARF3)
- return 2;
-
- // Opcodes with a single 4 byte arguments
- case DW_OP_const4u: // 0x0c 1 4-byte constant
- case DW_OP_const4s: // 0x0d 1 4-byte constant
- case DW_OP_call4: // 0x99 1 4-byte offset of DIE (DWARF3)
- return 4;
-
- // Opcodes with a single 8 byte arguments
- case DW_OP_const8u: // 0x0e 1 8-byte constant
- case DW_OP_const8s: // 0x0f 1 8-byte constant
- return 8;
-
- // All opcodes that have a single ULEB (signed or unsigned) argument
- case DW_OP_constu: // 0x10 1 ULEB128 constant
- case DW_OP_consts: // 0x11 1 SLEB128 constant
- case DW_OP_plus_uconst: // 0x23 1 ULEB128 addend
- case DW_OP_breg0: // 0x70 1 ULEB128 register
- case DW_OP_breg1: // 0x71 1 ULEB128 register
- case DW_OP_breg2: // 0x72 1 ULEB128 register
- case DW_OP_breg3: // 0x73 1 ULEB128 register
- case DW_OP_breg4: // 0x74 1 ULEB128 register
- case DW_OP_breg5: // 0x75 1 ULEB128 register
- case DW_OP_breg6: // 0x76 1 ULEB128 register
- case DW_OP_breg7: // 0x77 1 ULEB128 register
- case DW_OP_breg8: // 0x78 1 ULEB128 register
- case DW_OP_breg9: // 0x79 1 ULEB128 register
- case DW_OP_breg10: // 0x7a 1 ULEB128 register
- case DW_OP_breg11: // 0x7b 1 ULEB128 register
- case DW_OP_breg12: // 0x7c 1 ULEB128 register
- case DW_OP_breg13: // 0x7d 1 ULEB128 register
- case DW_OP_breg14: // 0x7e 1 ULEB128 register
- case DW_OP_breg15: // 0x7f 1 ULEB128 register
- case DW_OP_breg16: // 0x80 1 ULEB128 register
- case DW_OP_breg17: // 0x81 1 ULEB128 register
- case DW_OP_breg18: // 0x82 1 ULEB128 register
- case DW_OP_breg19: // 0x83 1 ULEB128 register
- case DW_OP_breg20: // 0x84 1 ULEB128 register
- case DW_OP_breg21: // 0x85 1 ULEB128 register
- case DW_OP_breg22: // 0x86 1 ULEB128 register
- case DW_OP_breg23: // 0x87 1 ULEB128 register
- case DW_OP_breg24: // 0x88 1 ULEB128 register
- case DW_OP_breg25: // 0x89 1 ULEB128 register
- case DW_OP_breg26: // 0x8a 1 ULEB128 register
- case DW_OP_breg27: // 0x8b 1 ULEB128 register
- case DW_OP_breg28: // 0x8c 1 ULEB128 register
- case DW_OP_breg29: // 0x8d 1 ULEB128 register
- case DW_OP_breg30: // 0x8e 1 ULEB128 register
- case DW_OP_breg31: // 0x8f 1 ULEB128 register
- case DW_OP_regx: // 0x90 1 ULEB128 register
- case DW_OP_fbreg: // 0x91 1 SLEB128 offset
- case DW_OP_piece: // 0x93 1 ULEB128 size of piece addressed
- case DW_OP_GNU_addr_index: // 0xfb 1 ULEB128 index
- case DW_OP_GNU_const_index: // 0xfc 1 ULEB128 index
- data.Skip_LEB128(&offset);
- return offset - data_offset;
-
- // All opcodes that have a 2 ULEB (signed or unsigned) arguments
- case DW_OP_bregx: // 0x92 2 ULEB128 register followed by SLEB128 offset
- case DW_OP_bit_piece: // 0x9d ULEB128 bit size, ULEB128 bit offset (DWARF3);
- data.Skip_LEB128(&offset);
- data.Skip_LEB128(&offset);
- return offset - data_offset;
-
- case DW_OP_implicit_value: // 0x9e ULEB128 size followed by block of that size (DWARF4)
- {
- uint64_t block_len = data.Skip_LEB128(&offset);
- offset += block_len;
- return offset - data_offset;
- }
-
- default:
- break;
- }
- return LLDB_INVALID_OFFSET;
-}
-
-lldb::addr_t
-DWARFExpression::GetLocation_DW_OP_addr (uint32_t op_addr_idx, bool &error) const
-{
- error = false;
- if (IsLocationList())
- return LLDB_INVALID_ADDRESS;
- lldb::offset_t offset = 0;
- uint32_t curr_op_addr_idx = 0;
- while (m_data.ValidOffset(offset))
- {
- const uint8_t op = m_data.GetU8(&offset);
-
- if (op == DW_OP_addr)
- {
- const lldb::addr_t op_file_addr = m_data.GetAddress(&offset);
- if (curr_op_addr_idx == op_addr_idx)
- return op_file_addr;
- else
- ++curr_op_addr_idx;
- }
- else if (op == DW_OP_GNU_addr_index)
- {
- uint64_t index = m_data.GetULEB128(&offset);
- if (curr_op_addr_idx == op_addr_idx)
- {
- if (!m_dwarf_cu)
- {
- error = true;
- break;
- }
+static offset_t GetOpcodeDataSize(const DataExtractor &data,
+ const lldb::offset_t data_offset,
+ const uint8_t op) {
+ lldb::offset_t offset = data_offset;
+ switch (op) {
+ case DW_OP_addr:
+ case DW_OP_call_ref: // 0x9a 1 address sized offset of DIE (DWARF3)
+ return data.GetAddressByteSize();
+
+ // Opcodes with no arguments
+ case DW_OP_deref: // 0x06
+ case DW_OP_dup: // 0x12
+ case DW_OP_drop: // 0x13
+ case DW_OP_over: // 0x14
+ case DW_OP_swap: // 0x16
+ case DW_OP_rot: // 0x17
+ case DW_OP_xderef: // 0x18
+ case DW_OP_abs: // 0x19
+ case DW_OP_and: // 0x1a
+ case DW_OP_div: // 0x1b
+ case DW_OP_minus: // 0x1c
+ case DW_OP_mod: // 0x1d
+ case DW_OP_mul: // 0x1e
+ case DW_OP_neg: // 0x1f
+ case DW_OP_not: // 0x20
+ case DW_OP_or: // 0x21
+ case DW_OP_plus: // 0x22
+ case DW_OP_shl: // 0x24
+ case DW_OP_shr: // 0x25
+ case DW_OP_shra: // 0x26
+ case DW_OP_xor: // 0x27
+ case DW_OP_eq: // 0x29
+ case DW_OP_ge: // 0x2a
+ case DW_OP_gt: // 0x2b
+ case DW_OP_le: // 0x2c
+ case DW_OP_lt: // 0x2d
+ case DW_OP_ne: // 0x2e
+ case DW_OP_lit0: // 0x30
+ case DW_OP_lit1: // 0x31
+ case DW_OP_lit2: // 0x32
+ case DW_OP_lit3: // 0x33
+ case DW_OP_lit4: // 0x34
+ case DW_OP_lit5: // 0x35
+ case DW_OP_lit6: // 0x36
+ case DW_OP_lit7: // 0x37
+ case DW_OP_lit8: // 0x38
+ case DW_OP_lit9: // 0x39
+ case DW_OP_lit10: // 0x3A
+ case DW_OP_lit11: // 0x3B
+ case DW_OP_lit12: // 0x3C
+ case DW_OP_lit13: // 0x3D
+ case DW_OP_lit14: // 0x3E
+ case DW_OP_lit15: // 0x3F
+ case DW_OP_lit16: // 0x40
+ case DW_OP_lit17: // 0x41
+ case DW_OP_lit18: // 0x42
+ case DW_OP_lit19: // 0x43
+ case DW_OP_lit20: // 0x44
+ case DW_OP_lit21: // 0x45
+ case DW_OP_lit22: // 0x46
+ case DW_OP_lit23: // 0x47
+ case DW_OP_lit24: // 0x48
+ case DW_OP_lit25: // 0x49
+ case DW_OP_lit26: // 0x4A
+ case DW_OP_lit27: // 0x4B
+ case DW_OP_lit28: // 0x4C
+ case DW_OP_lit29: // 0x4D
+ case DW_OP_lit30: // 0x4E
+ case DW_OP_lit31: // 0x4f
+ case DW_OP_reg0: // 0x50
+ case DW_OP_reg1: // 0x51
+ case DW_OP_reg2: // 0x52
+ case DW_OP_reg3: // 0x53
+ case DW_OP_reg4: // 0x54
+ case DW_OP_reg5: // 0x55
+ case DW_OP_reg6: // 0x56
+ case DW_OP_reg7: // 0x57
+ case DW_OP_reg8: // 0x58
+ case DW_OP_reg9: // 0x59
+ case DW_OP_reg10: // 0x5A
+ case DW_OP_reg11: // 0x5B
+ case DW_OP_reg12: // 0x5C
+ case DW_OP_reg13: // 0x5D
+ case DW_OP_reg14: // 0x5E
+ case DW_OP_reg15: // 0x5F
+ case DW_OP_reg16: // 0x60
+ case DW_OP_reg17: // 0x61
+ case DW_OP_reg18: // 0x62
+ case DW_OP_reg19: // 0x63
+ case DW_OP_reg20: // 0x64
+ case DW_OP_reg21: // 0x65
+ case DW_OP_reg22: // 0x66
+ case DW_OP_reg23: // 0x67
+ case DW_OP_reg24: // 0x68
+ case DW_OP_reg25: // 0x69
+ case DW_OP_reg26: // 0x6A
+ case DW_OP_reg27: // 0x6B
+ case DW_OP_reg28: // 0x6C
+ case DW_OP_reg29: // 0x6D
+ case DW_OP_reg30: // 0x6E
+ case DW_OP_reg31: // 0x6F
+ case DW_OP_nop: // 0x96
+ case DW_OP_push_object_address: // 0x97 DWARF3
+ case DW_OP_form_tls_address: // 0x9b DWARF3
+ case DW_OP_call_frame_cfa: // 0x9c DWARF3
+ case DW_OP_stack_value: // 0x9f DWARF4
+ case DW_OP_GNU_push_tls_address: // 0xe0 GNU extension
+ return 0;
- return ReadAddressFromDebugAddrSection(m_dwarf_cu, index);
- }
- else
- ++curr_op_addr_idx;
- }
- else
- {
- const offset_t op_arg_size = GetOpcodeDataSize (m_data, offset, op);
- if (op_arg_size == LLDB_INVALID_OFFSET)
- {
- error = true;
- break;
- }
- offset += op_arg_size;
- }
- }
+ // Opcodes with a single 1 byte arguments
+ case DW_OP_const1u: // 0x08 1 1-byte constant
+ case DW_OP_const1s: // 0x09 1 1-byte constant
+ case DW_OP_pick: // 0x15 1 1-byte stack index
+ case DW_OP_deref_size: // 0x94 1 1-byte size of data retrieved
+ case DW_OP_xderef_size: // 0x95 1 1-byte size of data retrieved
+ return 1;
+
+ // Opcodes with a single 2 byte arguments
+ case DW_OP_const2u: // 0x0a 1 2-byte constant
+ case DW_OP_const2s: // 0x0b 1 2-byte constant
+ case DW_OP_skip: // 0x2f 1 signed 2-byte constant
+ case DW_OP_bra: // 0x28 1 signed 2-byte constant
+ case DW_OP_call2: // 0x98 1 2-byte offset of DIE (DWARF3)
+ return 2;
+
+ // Opcodes with a single 4 byte arguments
+ case DW_OP_const4u: // 0x0c 1 4-byte constant
+ case DW_OP_const4s: // 0x0d 1 4-byte constant
+ case DW_OP_call4: // 0x99 1 4-byte offset of DIE (DWARF3)
+ return 4;
+
+ // Opcodes with a single 8 byte arguments
+ case DW_OP_const8u: // 0x0e 1 8-byte constant
+ case DW_OP_const8s: // 0x0f 1 8-byte constant
+ return 8;
+
+ // All opcodes that have a single ULEB (signed or unsigned) argument
+ case DW_OP_constu: // 0x10 1 ULEB128 constant
+ case DW_OP_consts: // 0x11 1 SLEB128 constant
+ case DW_OP_plus_uconst: // 0x23 1 ULEB128 addend
+ case DW_OP_breg0: // 0x70 1 ULEB128 register
+ case DW_OP_breg1: // 0x71 1 ULEB128 register
+ case DW_OP_breg2: // 0x72 1 ULEB128 register
+ case DW_OP_breg3: // 0x73 1 ULEB128 register
+ case DW_OP_breg4: // 0x74 1 ULEB128 register
+ case DW_OP_breg5: // 0x75 1 ULEB128 register
+ case DW_OP_breg6: // 0x76 1 ULEB128 register
+ case DW_OP_breg7: // 0x77 1 ULEB128 register
+ case DW_OP_breg8: // 0x78 1 ULEB128 register
+ case DW_OP_breg9: // 0x79 1 ULEB128 register
+ case DW_OP_breg10: // 0x7a 1 ULEB128 register
+ case DW_OP_breg11: // 0x7b 1 ULEB128 register
+ case DW_OP_breg12: // 0x7c 1 ULEB128 register
+ case DW_OP_breg13: // 0x7d 1 ULEB128 register
+ case DW_OP_breg14: // 0x7e 1 ULEB128 register
+ case DW_OP_breg15: // 0x7f 1 ULEB128 register
+ case DW_OP_breg16: // 0x80 1 ULEB128 register
+ case DW_OP_breg17: // 0x81 1 ULEB128 register
+ case DW_OP_breg18: // 0x82 1 ULEB128 register
+ case DW_OP_breg19: // 0x83 1 ULEB128 register
+ case DW_OP_breg20: // 0x84 1 ULEB128 register
+ case DW_OP_breg21: // 0x85 1 ULEB128 register
+ case DW_OP_breg22: // 0x86 1 ULEB128 register
+ case DW_OP_breg23: // 0x87 1 ULEB128 register
+ case DW_OP_breg24: // 0x88 1 ULEB128 register
+ case DW_OP_breg25: // 0x89 1 ULEB128 register
+ case DW_OP_breg26: // 0x8a 1 ULEB128 register
+ case DW_OP_breg27: // 0x8b 1 ULEB128 register
+ case DW_OP_breg28: // 0x8c 1 ULEB128 register
+ case DW_OP_breg29: // 0x8d 1 ULEB128 register
+ case DW_OP_breg30: // 0x8e 1 ULEB128 register
+ case DW_OP_breg31: // 0x8f 1 ULEB128 register
+ case DW_OP_regx: // 0x90 1 ULEB128 register
+ case DW_OP_fbreg: // 0x91 1 SLEB128 offset
+ case DW_OP_piece: // 0x93 1 ULEB128 size of piece addressed
+ case DW_OP_GNU_addr_index: // 0xfb 1 ULEB128 index
+ case DW_OP_GNU_const_index: // 0xfc 1 ULEB128 index
+ data.Skip_LEB128(&offset);
+ return offset - data_offset;
+
+ // All opcodes that have a 2 ULEB (signed or unsigned) arguments
+ case DW_OP_bregx: // 0x92 2 ULEB128 register followed by SLEB128 offset
+ case DW_OP_bit_piece: // 0x9d ULEB128 bit size, ULEB128 bit offset (DWARF3);
+ data.Skip_LEB128(&offset);
+ data.Skip_LEB128(&offset);
+ return offset - data_offset;
+
+ case DW_OP_implicit_value: // 0x9e ULEB128 size followed by block of that size
+ // (DWARF4)
+ {
+ uint64_t block_len = data.Skip_LEB128(&offset);
+ offset += block_len;
+ return offset - data_offset;
+ }
+
+ default:
+ break;
+ }
+ return LLDB_INVALID_OFFSET;
+}
+
+lldb::addr_t DWARFExpression::GetLocation_DW_OP_addr(uint32_t op_addr_idx,
+ bool &error) const {
+ error = false;
+ if (IsLocationList())
return LLDB_INVALID_ADDRESS;
+ lldb::offset_t offset = 0;
+ uint32_t curr_op_addr_idx = 0;
+ while (m_data.ValidOffset(offset)) {
+ const uint8_t op = m_data.GetU8(&offset);
+
+ if (op == DW_OP_addr) {
+ const lldb::addr_t op_file_addr = m_data.GetAddress(&offset);
+ if (curr_op_addr_idx == op_addr_idx)
+ return op_file_addr;
+ else
+ ++curr_op_addr_idx;
+ } else if (op == DW_OP_GNU_addr_index) {
+ uint64_t index = m_data.GetULEB128(&offset);
+ if (curr_op_addr_idx == op_addr_idx) {
+ if (!m_dwarf_cu) {
+ error = true;
+ break;
+ }
+
+ return ReadAddressFromDebugAddrSection(m_dwarf_cu, index);
+ } else
+ ++curr_op_addr_idx;
+ } else {
+ const offset_t op_arg_size = GetOpcodeDataSize(m_data, offset, op);
+ if (op_arg_size == LLDB_INVALID_OFFSET) {
+ error = true;
+ break;
+ }
+ offset += op_arg_size;
+ }
+ }
+ return LLDB_INVALID_ADDRESS;
}
-bool
-DWARFExpression::Update_DW_OP_addr (lldb::addr_t file_addr)
-{
- if (IsLocationList())
- return false;
- lldb::offset_t offset = 0;
- while (m_data.ValidOffset(offset))
- {
- const uint8_t op = m_data.GetU8(&offset);
-
- if (op == DW_OP_addr)
- {
- const uint32_t addr_byte_size = m_data.GetAddressByteSize();
- // We have to make a copy of the data as we don't know if this
- // data is from a read only memory mapped buffer, so we duplicate
- // all of the data first, then modify it, and if all goes well,
- // we then replace the data for this expression
-
- // So first we copy the data into a heap buffer
- std::unique_ptr<DataBufferHeap> head_data_ap (new DataBufferHeap (m_data.GetDataStart(),
- m_data.GetByteSize()));
-
- // Make en encoder so we can write the address into the buffer using
- // the correct byte order (endianness)
- DataEncoder encoder (head_data_ap->GetBytes(),
- head_data_ap->GetByteSize(),
- m_data.GetByteOrder(),
- addr_byte_size);
-
- // Replace the address in the new buffer
- if (encoder.PutMaxU64 (offset, addr_byte_size, file_addr) == UINT32_MAX)
- return false;
-
- // All went well, so now we can reset the data using a shared
- // pointer to the heap data so "m_data" will now correctly
- // manage the heap data.
- m_data.SetData (DataBufferSP (head_data_ap.release()));
- return true;
- }
- else
- {
- const offset_t op_arg_size = GetOpcodeDataSize (m_data, offset, op);
- if (op_arg_size == LLDB_INVALID_OFFSET)
- break;
- offset += op_arg_size;
- }
- }
+bool DWARFExpression::Update_DW_OP_addr(lldb::addr_t file_addr) {
+ if (IsLocationList())
return false;
-}
+ lldb::offset_t offset = 0;
+ while (m_data.ValidOffset(offset)) {
+ const uint8_t op = m_data.GetU8(&offset);
+
+ if (op == DW_OP_addr) {
+ const uint32_t addr_byte_size = m_data.GetAddressByteSize();
+ // We have to make a copy of the data as we don't know if this
+ // data is from a read only memory mapped buffer, so we duplicate
+ // all of the data first, then modify it, and if all goes well,
+ // we then replace the data for this expression
+
+ // So first we copy the data into a heap buffer
+ std::unique_ptr<DataBufferHeap> head_data_ap(
+ new DataBufferHeap(m_data.GetDataStart(), m_data.GetByteSize()));
+
+ // Make en encoder so we can write the address into the buffer using
+ // the correct byte order (endianness)
+ DataEncoder encoder(head_data_ap->GetBytes(), head_data_ap->GetByteSize(),
+ m_data.GetByteOrder(), addr_byte_size);
-bool
-DWARFExpression::ContainsThreadLocalStorage() const
-{
- // We are assuming for now that any thread local variable will not
- // have a location list. This has been true for all thread local
- // variables we have seen so far produced by any compiler.
- if (IsLocationList())
+ // Replace the address in the new buffer
+ if (encoder.PutMaxU64(offset, addr_byte_size, file_addr) == UINT32_MAX)
return false;
- lldb::offset_t offset = 0;
- while (m_data.ValidOffset(offset))
- {
- const uint8_t op = m_data.GetU8(&offset);
- if (op == DW_OP_form_tls_address || op == DW_OP_GNU_push_tls_address)
- return true;
- const offset_t op_arg_size = GetOpcodeDataSize(m_data, offset, op);
- if (op_arg_size == LLDB_INVALID_OFFSET)
- return false;
- else
- offset += op_arg_size;
- }
+ // All went well, so now we can reset the data using a shared
+ // pointer to the heap data so "m_data" will now correctly
+ // manage the heap data.
+ m_data.SetData(DataBufferSP(head_data_ap.release()));
+ return true;
+ } else {
+ const offset_t op_arg_size = GetOpcodeDataSize(m_data, offset, op);
+ if (op_arg_size == LLDB_INVALID_OFFSET)
+ break;
+ offset += op_arg_size;
+ }
+ }
+ return false;
+}
+
+bool DWARFExpression::ContainsThreadLocalStorage() const {
+ // We are assuming for now that any thread local variable will not
+ // have a location list. This has been true for all thread local
+ // variables we have seen so far produced by any compiler.
+ if (IsLocationList())
return false;
-}
-bool
-DWARFExpression::LinkThreadLocalStorage(
- lldb::ModuleSP new_module_sp, std::function<lldb::addr_t(lldb::addr_t file_addr)> const &link_address_callback)
-{
- // We are assuming for now that any thread local variable will not
- // have a location list. This has been true for all thread local
- // variables we have seen so far produced by any compiler.
- if (IsLocationList())
- return false;
+ lldb::offset_t offset = 0;
+ while (m_data.ValidOffset(offset)) {
+ const uint8_t op = m_data.GetU8(&offset);
+
+ if (op == DW_OP_form_tls_address || op == DW_OP_GNU_push_tls_address)
+ return true;
+ const offset_t op_arg_size = GetOpcodeDataSize(m_data, offset, op);
+ if (op_arg_size == LLDB_INVALID_OFFSET)
+ return false;
+ else
+ offset += op_arg_size;
+ }
+ return false;
+}
+bool DWARFExpression::LinkThreadLocalStorage(
+ lldb::ModuleSP new_module_sp,
+ std::function<lldb::addr_t(lldb::addr_t file_addr)> const
+ &link_address_callback) {
+ // We are assuming for now that any thread local variable will not
+ // have a location list. This has been true for all thread local
+ // variables we have seen so far produced by any compiler.
+ if (IsLocationList())
+ return false;
+
+ const uint32_t addr_byte_size = m_data.GetAddressByteSize();
+ // We have to make a copy of the data as we don't know if this
+ // data is from a read only memory mapped buffer, so we duplicate
+ // all of the data first, then modify it, and if all goes well,
+ // we then replace the data for this expression
+
+ // So first we copy the data into a heap buffer
+ std::shared_ptr<DataBufferHeap> heap_data_sp(
+ new DataBufferHeap(m_data.GetDataStart(), m_data.GetByteSize()));
+
+ // Make en encoder so we can write the address into the buffer using
+ // the correct byte order (endianness)
+ DataEncoder encoder(heap_data_sp->GetBytes(), heap_data_sp->GetByteSize(),
+ m_data.GetByteOrder(), addr_byte_size);
+
+ lldb::offset_t offset = 0;
+ lldb::offset_t const_offset = 0;
+ lldb::addr_t const_value = 0;
+ size_t const_byte_size = 0;
+ while (m_data.ValidOffset(offset)) {
+ const uint8_t op = m_data.GetU8(&offset);
+
+ bool decoded_data = false;
+ switch (op) {
+ case DW_OP_const4u:
+ // Remember the const offset in case we later have a
+ // DW_OP_form_tls_address
+ // or DW_OP_GNU_push_tls_address
+ const_offset = offset;
+ const_value = m_data.GetU32(&offset);
+ decoded_data = true;
+ const_byte_size = 4;
+ break;
+
+ case DW_OP_const8u:
+ // Remember the const offset in case we later have a
+ // DW_OP_form_tls_address
+ // or DW_OP_GNU_push_tls_address
+ const_offset = offset;
+ const_value = m_data.GetU64(&offset);
+ decoded_data = true;
+ const_byte_size = 8;
+ break;
+
+ case DW_OP_form_tls_address:
+ case DW_OP_GNU_push_tls_address:
+ // DW_OP_form_tls_address and DW_OP_GNU_push_tls_address must be preceded
+ // by
+ // a file address on the stack. We assume that DW_OP_const4u or
+ // DW_OP_const8u
+ // is used for these values, and we check that the last opcode we got
+ // before
+ // either of these was DW_OP_const4u or DW_OP_const8u. If so, then we can
+ // link
+ // the value accodingly. For Darwin, the value in the DW_OP_const4u or
+ // DW_OP_const8u is the file address of a structure that contains a
+ // function
+ // pointer, the pthread key and the offset into the data pointed to by the
+ // pthread key. So we must link this address and also set the module of
+ // this
+ // expression to the new_module_sp so we can resolve the file address
+ // correctly
+ if (const_byte_size > 0) {
+ lldb::addr_t linked_file_addr = link_address_callback(const_value);
+ if (linked_file_addr == LLDB_INVALID_ADDRESS)
+ return false;
+ // Replace the address in the new buffer
+ if (encoder.PutMaxU64(const_offset, const_byte_size,
+ linked_file_addr) == UINT32_MAX)
+ return false;
+ }
+ break;
- const uint32_t addr_byte_size = m_data.GetAddressByteSize();
- // We have to make a copy of the data as we don't know if this
- // data is from a read only memory mapped buffer, so we duplicate
- // all of the data first, then modify it, and if all goes well,
- // we then replace the data for this expression
+ default:
+ const_offset = 0;
+ const_value = 0;
+ const_byte_size = 0;
+ break;
+ }
- // So first we copy the data into a heap buffer
- std::shared_ptr<DataBufferHeap> heap_data_sp(new DataBufferHeap(m_data.GetDataStart(), m_data.GetByteSize()));
+ if (!decoded_data) {
+ const offset_t op_arg_size = GetOpcodeDataSize(m_data, offset, op);
+ if (op_arg_size == LLDB_INVALID_OFFSET)
+ return false;
+ else
+ offset += op_arg_size;
+ }
+ }
- // Make en encoder so we can write the address into the buffer using
- // the correct byte order (endianness)
- DataEncoder encoder(heap_data_sp->GetBytes(), heap_data_sp->GetByteSize(), m_data.GetByteOrder(), addr_byte_size);
+ // If we linked the TLS address correctly, update the module so that when the
+ // expression
+ // is evaluated it can resolve the file address to a load address and read the
+ // TLS data
+ m_module_wp = new_module_sp;
+ m_data.SetData(heap_data_sp);
+ return true;
+}
+
+bool DWARFExpression::LocationListContainsAddress(
+ lldb::addr_t loclist_base_addr, lldb::addr_t addr) const {
+ if (addr == LLDB_INVALID_ADDRESS)
+ return false;
+ if (IsLocationList()) {
lldb::offset_t offset = 0;
- lldb::offset_t const_offset = 0;
- lldb::addr_t const_value = 0;
- size_t const_byte_size = 0;
- while (m_data.ValidOffset(offset))
- {
- const uint8_t op = m_data.GetU8(&offset);
- bool decoded_data = false;
- switch (op)
- {
- case DW_OP_const4u:
- // Remember the const offset in case we later have a DW_OP_form_tls_address
- // or DW_OP_GNU_push_tls_address
- const_offset = offset;
- const_value = m_data.GetU32(&offset);
- decoded_data = true;
- const_byte_size = 4;
- break;
+ if (loclist_base_addr == LLDB_INVALID_ADDRESS)
+ return false;
- case DW_OP_const8u:
- // Remember the const offset in case we later have a DW_OP_form_tls_address
- // or DW_OP_GNU_push_tls_address
- const_offset = offset;
- const_value = m_data.GetU64(&offset);
- decoded_data = true;
- const_byte_size = 8;
- break;
+ while (m_data.ValidOffset(offset)) {
+ // We need to figure out what the value is for the location.
+ addr_t lo_pc = LLDB_INVALID_ADDRESS;
+ addr_t hi_pc = LLDB_INVALID_ADDRESS;
+ if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset, lo_pc,
+ hi_pc))
+ break;
- case DW_OP_form_tls_address:
- case DW_OP_GNU_push_tls_address:
- // DW_OP_form_tls_address and DW_OP_GNU_push_tls_address must be preceded by
- // a file address on the stack. We assume that DW_OP_const4u or DW_OP_const8u
- // is used for these values, and we check that the last opcode we got before
- // either of these was DW_OP_const4u or DW_OP_const8u. If so, then we can link
- // the value accodingly. For Darwin, the value in the DW_OP_const4u or
- // DW_OP_const8u is the file address of a structure that contains a function
- // pointer, the pthread key and the offset into the data pointed to by the
- // pthread key. So we must link this address and also set the module of this
- // expression to the new_module_sp so we can resolve the file address correctly
- if (const_byte_size > 0)
- {
- lldb::addr_t linked_file_addr = link_address_callback(const_value);
- if (linked_file_addr == LLDB_INVALID_ADDRESS)
- return false;
- // Replace the address in the new buffer
- if (encoder.PutMaxU64(const_offset, const_byte_size, linked_file_addr) == UINT32_MAX)
- return false;
- }
- break;
+ if (lo_pc == 0 && hi_pc == 0)
+ break;
- default:
- const_offset = 0;
- const_value = 0;
- const_byte_size = 0;
- break;
- }
+ lo_pc += loclist_base_addr - m_loclist_slide;
+ hi_pc += loclist_base_addr - m_loclist_slide;
- if (!decoded_data)
- {
- const offset_t op_arg_size = GetOpcodeDataSize(m_data, offset, op);
- if (op_arg_size == LLDB_INVALID_OFFSET)
- return false;
- else
- offset += op_arg_size;
- }
- }
+ if (lo_pc <= addr && addr < hi_pc)
+ return true;
- // If we linked the TLS address correctly, update the module so that when the expression
- // is evaluated it can resolve the file address to a load address and read the TLS data
- m_module_wp = new_module_sp;
- m_data.SetData(heap_data_sp);
- return true;
+ offset += m_data.GetU16(&offset);
+ }
+ }
+ return false;
}
-bool
-DWARFExpression::LocationListContainsAddress(lldb::addr_t loclist_base_addr, lldb::addr_t addr) const
-{
- if (addr == LLDB_INVALID_ADDRESS)
- return false;
+bool DWARFExpression::GetLocation(addr_t base_addr, addr_t pc,
+ lldb::offset_t &offset,
+ lldb::offset_t &length) {
+ offset = 0;
+ if (!IsLocationList()) {
+ length = m_data.GetByteSize();
+ return true;
+ }
- if (IsLocationList())
- {
- lldb::offset_t offset = 0;
+ if (base_addr != LLDB_INVALID_ADDRESS && pc != LLDB_INVALID_ADDRESS) {
+ addr_t curr_base_addr = base_addr;
- if (loclist_base_addr == LLDB_INVALID_ADDRESS)
- return false;
+ while (m_data.ValidOffset(offset)) {
+ // We need to figure out what the value is for the location.
+ addr_t lo_pc = LLDB_INVALID_ADDRESS;
+ addr_t hi_pc = LLDB_INVALID_ADDRESS;
+ if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset, lo_pc,
+ hi_pc))
+ break;
- while (m_data.ValidOffset(offset))
- {
- // We need to figure out what the value is for the location.
- addr_t lo_pc = LLDB_INVALID_ADDRESS;
- addr_t hi_pc = LLDB_INVALID_ADDRESS;
- if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset, lo_pc, hi_pc))
- break;
+ if (lo_pc == 0 && hi_pc == 0)
+ break;
- if (lo_pc == 0 && hi_pc == 0)
- break;
+ lo_pc += curr_base_addr - m_loclist_slide;
+ hi_pc += curr_base_addr - m_loclist_slide;
- lo_pc += loclist_base_addr - m_loclist_slide;
- hi_pc += loclist_base_addr - m_loclist_slide;
+ length = m_data.GetU16(&offset);
- if (lo_pc <= addr && addr < hi_pc)
- return true;
+ if (length > 0 && lo_pc <= pc && pc < hi_pc)
+ return true;
- offset += m_data.GetU16(&offset);
- }
+ offset += length;
}
- return false;
-}
+ }
+ offset = LLDB_INVALID_OFFSET;
+ length = 0;
+ return false;
+}
+
+bool DWARFExpression::DumpLocationForAddress(Stream *s,
+ lldb::DescriptionLevel level,
+ addr_t base_addr, addr_t address,
+ ABI *abi) {
+ lldb::offset_t offset = 0;
+ lldb::offset_t length = 0;
+
+ if (GetLocation(base_addr, address, offset, length)) {
+ if (length > 0) {
+ DumpLocation(s, offset, length, level, abi);
+ return true;
+ }
+ }
+ return false;
+}
+
+bool DWARFExpression::Evaluate(ExecutionContextScope *exe_scope,
+ ClangExpressionVariableList *expr_locals,
+ ClangExpressionDeclMap *decl_map,
+ lldb::addr_t loclist_base_load_addr,
+ const Value *initial_value_ptr,
+ const Value *object_address_ptr, Value &result,
+ Error *error_ptr) const {
+ ExecutionContext exe_ctx(exe_scope);
+ return Evaluate(&exe_ctx, expr_locals, decl_map, nullptr,
+ loclist_base_load_addr, initial_value_ptr, object_address_ptr,
+ result, error_ptr);
+}
+
+bool DWARFExpression::Evaluate(
+ ExecutionContext *exe_ctx, ClangExpressionVariableList *expr_locals,
+ ClangExpressionDeclMap *decl_map, RegisterContext *reg_ctx,
+ lldb::addr_t loclist_base_load_addr, const Value *initial_value_ptr,
+ const Value *object_address_ptr, Value &result, Error *error_ptr) const {
+ ModuleSP module_sp = m_module_wp.lock();
-bool
-DWARFExpression::GetLocation (addr_t base_addr, addr_t pc, lldb::offset_t &offset, lldb::offset_t &length)
-{
- offset = 0;
- if (!IsLocationList())
- {
- length = m_data.GetByteSize();
- return true;
+ if (IsLocationList()) {
+ lldb::offset_t offset = 0;
+ addr_t pc;
+ StackFrame *frame = NULL;
+ if (reg_ctx)
+ pc = reg_ctx->GetPC();
+ else {
+ frame = exe_ctx->GetFramePtr();
+ if (!frame)
+ return false;
+ RegisterContextSP reg_ctx_sp = frame->GetRegisterContext();
+ if (!reg_ctx_sp)
+ return false;
+ pc = reg_ctx_sp->GetPC();
}
- if (base_addr != LLDB_INVALID_ADDRESS && pc != LLDB_INVALID_ADDRESS)
- {
- addr_t curr_base_addr = base_addr;
+ if (loclist_base_load_addr != LLDB_INVALID_ADDRESS) {
+ if (pc == LLDB_INVALID_ADDRESS) {
+ if (error_ptr)
+ error_ptr->SetErrorString("Invalid PC in frame.");
+ return false;
+ }
- while (m_data.ValidOffset(offset))
- {
- // We need to figure out what the value is for the location.
- addr_t lo_pc = LLDB_INVALID_ADDRESS;
- addr_t hi_pc = LLDB_INVALID_ADDRESS;
- if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset, lo_pc, hi_pc))
- break;
+ addr_t curr_loclist_base_load_addr = loclist_base_load_addr;
- if (lo_pc == 0 && hi_pc == 0)
- break;
+ while (m_data.ValidOffset(offset)) {
+ // We need to figure out what the value is for the location.
+ addr_t lo_pc = LLDB_INVALID_ADDRESS;
+ addr_t hi_pc = LLDB_INVALID_ADDRESS;
+ if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset,
+ lo_pc, hi_pc))
+ break;
- lo_pc += curr_base_addr - m_loclist_slide;
- hi_pc += curr_base_addr - m_loclist_slide;
-
- length = m_data.GetU16(&offset);
-
- if (length > 0 && lo_pc <= pc && pc < hi_pc)
- return true;
+ if (lo_pc == 0 && hi_pc == 0)
+ break;
- offset += length;
- }
- }
- offset = LLDB_INVALID_OFFSET;
- length = 0;
- return false;
-}
+ lo_pc += curr_loclist_base_load_addr - m_loclist_slide;
+ hi_pc += curr_loclist_base_load_addr - m_loclist_slide;
-bool
-DWARFExpression::DumpLocationForAddress (Stream *s,
- lldb::DescriptionLevel level,
- addr_t base_addr,
- addr_t address,
- ABI *abi)
-{
- lldb::offset_t offset = 0;
- lldb::offset_t length = 0;
-
- if (GetLocation (base_addr, address, offset, length))
- {
- if (length > 0)
- {
- DumpLocation(s, offset, length, level, abi);
- return true;
+ uint16_t length = m_data.GetU16(&offset);
+
+ if (length > 0 && lo_pc <= pc && pc < hi_pc) {
+ return DWARFExpression::Evaluate(
+ exe_ctx, expr_locals, decl_map, reg_ctx, module_sp, m_data,
+ m_dwarf_cu, offset, length, m_reg_kind, initial_value_ptr,
+ object_address_ptr, result, error_ptr);
}
+ offset += length;
+ }
}
+ if (error_ptr)
+ error_ptr->SetErrorString("variable not available");
return false;
-}
-
-bool
-DWARFExpression::Evaluate
-(
- ExecutionContextScope *exe_scope,
- ClangExpressionVariableList *expr_locals,
- ClangExpressionDeclMap *decl_map,
- lldb::addr_t loclist_base_load_addr,
- const Value* initial_value_ptr,
- const Value* object_address_ptr,
- Value& result,
- Error *error_ptr
-) const
-{
- ExecutionContext exe_ctx (exe_scope);
- return Evaluate(&exe_ctx,
- expr_locals,
- decl_map,
- nullptr,
- loclist_base_load_addr,
- initial_value_ptr,
- object_address_ptr,
- result,
- error_ptr);
-}
-
-bool
-DWARFExpression::Evaluate
-(
- ExecutionContext *exe_ctx,
- ClangExpressionVariableList *expr_locals,
- ClangExpressionDeclMap *decl_map,
- RegisterContext *reg_ctx,
- lldb::addr_t loclist_base_load_addr,
- const Value* initial_value_ptr,
- const Value* object_address_ptr,
- Value& result,
- Error *error_ptr
-) const
-{
- ModuleSP module_sp = m_module_wp.lock();
+ }
- if (IsLocationList())
- {
- lldb::offset_t offset = 0;
- addr_t pc;
- StackFrame *frame = NULL;
- if (reg_ctx)
- pc = reg_ctx->GetPC();
- else
- {
- frame = exe_ctx->GetFramePtr();
- if (!frame)
- return false;
- RegisterContextSP reg_ctx_sp = frame->GetRegisterContext();
- if (!reg_ctx_sp)
- return false;
- pc = reg_ctx_sp->GetPC();
- }
+ // Not a location list, just a single expression.
+ return DWARFExpression::Evaluate(
+ exe_ctx, expr_locals, decl_map, reg_ctx, module_sp, m_data, m_dwarf_cu, 0,
+ m_data.GetByteSize(), m_reg_kind, initial_value_ptr, object_address_ptr,
+ result, error_ptr);
+}
+
+bool DWARFExpression::Evaluate(
+ ExecutionContext *exe_ctx, ClangExpressionVariableList *expr_locals,
+ ClangExpressionDeclMap *decl_map, RegisterContext *reg_ctx,
+ lldb::ModuleSP module_sp, const DataExtractor &opcodes,
+ DWARFCompileUnit *dwarf_cu, const lldb::offset_t opcodes_offset,
+ const lldb::offset_t opcodes_length, const lldb::RegisterKind reg_kind,
+ const Value *initial_value_ptr, const Value *object_address_ptr,
+ Value &result, Error *error_ptr) {
+
+ if (opcodes_length == 0) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "no location, value may have been optimized out");
+ return false;
+ }
+ std::vector<Value> stack;
- if (loclist_base_load_addr != LLDB_INVALID_ADDRESS)
- {
- if (pc == LLDB_INVALID_ADDRESS)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Invalid PC in frame.");
- return false;
- }
+ Process *process = NULL;
+ StackFrame *frame = NULL;
- addr_t curr_loclist_base_load_addr = loclist_base_load_addr;
+ if (exe_ctx) {
+ process = exe_ctx->GetProcessPtr();
+ frame = exe_ctx->GetFramePtr();
+ }
+ if (reg_ctx == NULL && frame)
+ reg_ctx = frame->GetRegisterContext().get();
+
+ if (initial_value_ptr)
+ stack.push_back(*initial_value_ptr);
+
+ lldb::offset_t offset = opcodes_offset;
+ const lldb::offset_t end_offset = opcodes_offset + opcodes_length;
+ Value tmp;
+ uint32_t reg_num;
+
+ /// Insertion point for evaluating multi-piece expression.
+ uint64_t op_piece_offset = 0;
+ Value pieces; // Used for DW_OP_piece
+
+ // Make sure all of the data is available in opcodes.
+ if (!opcodes.ValidOffsetForDataOfSize(opcodes_offset, opcodes_length)) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "invalid offset and/or length for opcodes buffer.");
+ return false;
+ }
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- while (m_data.ValidOffset(offset))
- {
- // We need to figure out what the value is for the location.
- addr_t lo_pc = LLDB_INVALID_ADDRESS;
- addr_t hi_pc = LLDB_INVALID_ADDRESS;
- if (!AddressRangeForLocationListEntry(m_dwarf_cu, m_data, &offset, lo_pc, hi_pc))
- break;
-
- if (lo_pc == 0 && hi_pc == 0)
- break;
-
- lo_pc += curr_loclist_base_load_addr - m_loclist_slide;
- hi_pc += curr_loclist_base_load_addr - m_loclist_slide;
-
- uint16_t length = m_data.GetU16(&offset);
-
- if (length > 0 && lo_pc <= pc && pc < hi_pc)
- {
- return DWARFExpression::Evaluate (exe_ctx,
- expr_locals,
- decl_map,
- reg_ctx,
- module_sp,
- m_data,
- m_dwarf_cu,
- offset,
- length,
- m_reg_kind,
- initial_value_ptr,
- object_address_ptr,
- result,
- error_ptr);
- }
- offset += length;
+ while (opcodes.ValidOffset(offset) && offset < end_offset) {
+ const lldb::offset_t op_offset = offset;
+ const uint8_t op = opcodes.GetU8(&offset);
+
+ if (log && log->GetVerbose()) {
+ size_t count = stack.size();
+ log->Printf("Stack before operation has %" PRIu64 " values:",
+ (uint64_t)count);
+ for (size_t i = 0; i < count; ++i) {
+ StreamString new_value;
+ new_value.Printf("[%" PRIu64 "]", (uint64_t)i);
+ stack[i].Dump(&new_value);
+ log->Printf(" %s", new_value.GetData());
+ }
+ log->Printf("0x%8.8" PRIx64 ": %s", op_offset, DW_OP_value_to_name(op));
+ }
+ switch (op) {
+ //----------------------------------------------------------------------
+ // The DW_OP_addr operation has a single operand that encodes a machine
+ // address and whose size is the size of an address on the target machine.
+ //----------------------------------------------------------------------
+ case DW_OP_addr:
+ stack.push_back(Scalar(opcodes.GetAddress(&offset)));
+ stack.back().SetValueType(Value::eValueTypeFileAddress);
+ break;
+
+ //----------------------------------------------------------------------
+ // The DW_OP_addr_sect_offset4 is used for any location expressions in
+ // shared libraries that have a location like:
+ // DW_OP_addr(0x1000)
+ // If this address resides in a shared library, then this virtual
+ // address won't make sense when it is evaluated in the context of a
+ // running process where shared libraries have been slid. To account for
+ // this, this new address type where we can store the section pointer
+ // and a 4 byte offset.
+ //----------------------------------------------------------------------
+ // case DW_OP_addr_sect_offset4:
+ // {
+ // result_type = eResultTypeFileAddress;
+ // lldb::Section *sect = (lldb::Section
+ // *)opcodes.GetMaxU64(&offset, sizeof(void *));
+ // lldb::addr_t sect_offset = opcodes.GetU32(&offset);
+ //
+ // Address so_addr (sect, sect_offset);
+ // lldb::addr_t load_addr = so_addr.GetLoadAddress();
+ // if (load_addr != LLDB_INVALID_ADDRESS)
+ // {
+ // // We successfully resolve a file address to a load
+ // // address.
+ // stack.push_back(load_addr);
+ // break;
+ // }
+ // else
+ // {
+ // // We were able
+ // if (error_ptr)
+ // error_ptr->SetErrorStringWithFormat ("Section %s in
+ // %s is not currently loaded.\n",
+ // sect->GetName().AsCString(),
+ // sect->GetModule()->GetFileSpec().GetFilename().AsCString());
+ // return false;
+ // }
+ // }
+ // break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_deref
+ // OPERANDS: none
+ // DESCRIPTION: Pops the top stack entry and treats it as an address.
+ // The value retrieved from that address is pushed. The size of the
+ // data retrieved from the dereferenced address is the size of an
+ // address on the target machine.
+ //----------------------------------------------------------------------
+ case DW_OP_deref: {
+ if (stack.empty()) {
+ if (error_ptr)
+ error_ptr->SetErrorString("Expression stack empty for DW_OP_deref.");
+ return false;
+ }
+ Value::ValueType value_type = stack.back().GetValueType();
+ switch (value_type) {
+ case Value::eValueTypeHostAddress: {
+ void *src = (void *)stack.back().GetScalar().ULongLong();
+ intptr_t ptr;
+ ::memcpy(&ptr, src, sizeof(void *));
+ stack.back().GetScalar() = ptr;
+ stack.back().ClearContext();
+ } break;
+ case Value::eValueTypeLoadAddress:
+ if (exe_ctx) {
+ if (process) {
+ lldb::addr_t pointer_addr =
+ stack.back().GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
+ Error error;
+ lldb::addr_t pointer_value =
+ process->ReadPointerFromMemory(pointer_addr, error);
+ if (pointer_value != LLDB_INVALID_ADDRESS) {
+ stack.back().GetScalar() = pointer_value;
+ stack.back().ClearContext();
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "Failed to dereference pointer from 0x%" PRIx64
+ " for DW_OP_deref: %s\n",
+ pointer_addr, error.AsCString());
+ return false;
}
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "NULL process for DW_OP_deref.\n");
+ return false;
+ }
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "NULL execution context for DW_OP_deref.\n");
+ return false;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ } break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_deref_size
+ // OPERANDS: 1
+ // 1 - uint8_t that specifies the size of the data to dereference.
+ // DESCRIPTION: Behaves like the DW_OP_deref operation: it pops the top
+ // stack entry and treats it as an address. The value retrieved from that
+ // address is pushed. In the DW_OP_deref_size operation, however, the
+ // size in bytes of the data retrieved from the dereferenced address is
+ // specified by the single operand. This operand is a 1-byte unsigned
+ // integral constant whose value may not be larger than the size of an
+ // address on the target machine. The data retrieved is zero extended
+ // to the size of an address on the target machine before being pushed
+ // on the expression stack.
+ //----------------------------------------------------------------------
+ case DW_OP_deref_size: {
+ if (stack.empty()) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack empty for DW_OP_deref_size.");
+ return false;
+ }
+ uint8_t size = opcodes.GetU8(&offset);
+ Value::ValueType value_type = stack.back().GetValueType();
+ switch (value_type) {
+ case Value::eValueTypeHostAddress: {
+ void *src = (void *)stack.back().GetScalar().ULongLong();
+ intptr_t ptr;
+ ::memcpy(&ptr, src, sizeof(void *));
+ // I can't decide whether the size operand should apply to the bytes in
+ // their
+ // lldb-host endianness or the target endianness.. I doubt this'll ever
+ // come up
+ // but I'll opt for assuming big endian regardless.
+ switch (size) {
+ case 1:
+ ptr = ptr & 0xff;
+ break;
+ case 2:
+ ptr = ptr & 0xffff;
+ break;
+ case 3:
+ ptr = ptr & 0xffffff;
+ break;
+ case 4:
+ ptr = ptr & 0xffffffff;
+ break;
+ // the casts are added to work around the case where intptr_t is a 32
+ // bit quantity;
+ // presumably we won't hit the 5..7 cases if (void*) is 32-bits in this
+ // program.
+ case 5:
+ ptr = (intptr_t)ptr & 0xffffffffffULL;
+ break;
+ case 6:
+ ptr = (intptr_t)ptr & 0xffffffffffffULL;
+ break;
+ case 7:
+ ptr = (intptr_t)ptr & 0xffffffffffffffULL;
+ break;
+ default:
+ break;
}
+ stack.back().GetScalar() = ptr;
+ stack.back().ClearContext();
+ } break;
+ case Value::eValueTypeLoadAddress:
+ if (exe_ctx) {
+ if (process) {
+ lldb::addr_t pointer_addr =
+ stack.back().GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
+ uint8_t addr_bytes[sizeof(lldb::addr_t)];
+ Error error;
+ if (process->ReadMemory(pointer_addr, &addr_bytes, size, error) ==
+ size) {
+ DataExtractor addr_data(addr_bytes, sizeof(addr_bytes),
+ process->GetByteOrder(), size);
+ lldb::offset_t addr_data_offset = 0;
+ switch (size) {
+ case 1:
+ stack.back().GetScalar() = addr_data.GetU8(&addr_data_offset);
+ break;
+ case 2:
+ stack.back().GetScalar() = addr_data.GetU16(&addr_data_offset);
+ break;
+ case 4:
+ stack.back().GetScalar() = addr_data.GetU32(&addr_data_offset);
+ break;
+ case 8:
+ stack.back().GetScalar() = addr_data.GetU64(&addr_data_offset);
+ break;
+ default:
+ stack.back().GetScalar() =
+ addr_data.GetPointer(&addr_data_offset);
+ }
+ stack.back().ClearContext();
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "Failed to dereference pointer from 0x%" PRIx64
+ " for DW_OP_deref: %s\n",
+ pointer_addr, error.AsCString());
+ return false;
+ }
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "NULL process for DW_OP_deref.\n");
+ return false;
+ }
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "NULL execution context for DW_OP_deref.\n");
+ return false;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ } break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_xderef_size
+ // OPERANDS: 1
+ // 1 - uint8_t that specifies the size of the data to dereference.
+ // DESCRIPTION: Behaves like the DW_OP_xderef operation: the entry at
+ // the top of the stack is treated as an address. The second stack
+ // entry is treated as an "address space identifier" for those
+ // architectures that support multiple address spaces. The top two
+ // stack elements are popped, a data item is retrieved through an
+ // implementation-defined address calculation and pushed as the new
+ // stack top. In the DW_OP_xderef_size operation, however, the size in
+ // bytes of the data retrieved from the dereferenced address is
+ // specified by the single operand. This operand is a 1-byte unsigned
+ // integral constant whose value may not be larger than the size of an
+ // address on the target machine. The data retrieved is zero extended
+ // to the size of an address on the target machine before being pushed
+ // on the expression stack.
+ //----------------------------------------------------------------------
+ case DW_OP_xderef_size:
+ if (error_ptr)
+ error_ptr->SetErrorString("Unimplemented opcode: DW_OP_xderef_size.");
+ return false;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_xderef
+ // OPERANDS: none
+ // DESCRIPTION: Provides an extended dereference mechanism. The entry at
+ // the top of the stack is treated as an address. The second stack entry
+ // is treated as an "address space identifier" for those architectures
+ // that support multiple address spaces. The top two stack elements are
+ // popped, a data item is retrieved through an implementation-defined
+ // address calculation and pushed as the new stack top. The size of the
+ // data retrieved from the dereferenced address is the size of an address
+ // on the target machine.
+ //----------------------------------------------------------------------
+ case DW_OP_xderef:
+ if (error_ptr)
+ error_ptr->SetErrorString("Unimplemented opcode: DW_OP_xderef.");
+ return false;
+
+ //----------------------------------------------------------------------
+ // All DW_OP_constXXX opcodes have a single operand as noted below:
+ //
+ // Opcode Operand 1
+ // --------------- ----------------------------------------------------
+ // DW_OP_const1u 1-byte unsigned integer constant
+ // DW_OP_const1s 1-byte signed integer constant
+ // DW_OP_const2u 2-byte unsigned integer constant
+ // DW_OP_const2s 2-byte signed integer constant
+ // DW_OP_const4u 4-byte unsigned integer constant
+ // DW_OP_const4s 4-byte signed integer constant
+ // DW_OP_const8u 8-byte unsigned integer constant
+ // DW_OP_const8s 8-byte signed integer constant
+ // DW_OP_constu unsigned LEB128 integer constant
+ // DW_OP_consts signed LEB128 integer constant
+ //----------------------------------------------------------------------
+ case DW_OP_const1u:
+ stack.push_back(Scalar((uint8_t)opcodes.GetU8(&offset)));
+ break;
+ case DW_OP_const1s:
+ stack.push_back(Scalar((int8_t)opcodes.GetU8(&offset)));
+ break;
+ case DW_OP_const2u:
+ stack.push_back(Scalar((uint16_t)opcodes.GetU16(&offset)));
+ break;
+ case DW_OP_const2s:
+ stack.push_back(Scalar((int16_t)opcodes.GetU16(&offset)));
+ break;
+ case DW_OP_const4u:
+ stack.push_back(Scalar((uint32_t)opcodes.GetU32(&offset)));
+ break;
+ case DW_OP_const4s:
+ stack.push_back(Scalar((int32_t)opcodes.GetU32(&offset)));
+ break;
+ case DW_OP_const8u:
+ stack.push_back(Scalar((uint64_t)opcodes.GetU64(&offset)));
+ break;
+ case DW_OP_const8s:
+ stack.push_back(Scalar((int64_t)opcodes.GetU64(&offset)));
+ break;
+ case DW_OP_constu:
+ stack.push_back(Scalar(opcodes.GetULEB128(&offset)));
+ break;
+ case DW_OP_consts:
+ stack.push_back(Scalar(opcodes.GetSLEB128(&offset)));
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_dup
+ // OPERANDS: none
+ // DESCRIPTION: duplicates the value at the top of the stack
+ //----------------------------------------------------------------------
+ case DW_OP_dup:
+ if (stack.empty()) {
if (error_ptr)
- error_ptr->SetErrorString ("variable not available");
+ error_ptr->SetErrorString("Expression stack empty for DW_OP_dup.");
return false;
- }
-
- // Not a location list, just a single expression.
- return DWARFExpression::Evaluate (exe_ctx,
- expr_locals,
- decl_map,
- reg_ctx,
- module_sp,
- m_data,
- m_dwarf_cu,
- 0,
- m_data.GetByteSize(),
- m_reg_kind,
- initial_value_ptr,
- object_address_ptr,
- result,
- error_ptr);
-}
-
-
-
-bool
-DWARFExpression::Evaluate
-(
- ExecutionContext *exe_ctx,
- ClangExpressionVariableList *expr_locals,
- ClangExpressionDeclMap *decl_map,
- RegisterContext *reg_ctx,
- lldb::ModuleSP module_sp,
- const DataExtractor& opcodes,
- DWARFCompileUnit* dwarf_cu,
- const lldb::offset_t opcodes_offset,
- const lldb::offset_t opcodes_length,
- const lldb::RegisterKind reg_kind,
- const Value* initial_value_ptr,
- const Value* object_address_ptr,
- Value& result,
- Error *error_ptr
-)
-{
-
- if (opcodes_length == 0)
- {
+ } else
+ stack.push_back(stack.back());
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_drop
+ // OPERANDS: none
+ // DESCRIPTION: pops the value at the top of the stack
+ //----------------------------------------------------------------------
+ case DW_OP_drop:
+ if (stack.empty()) {
if (error_ptr)
- error_ptr->SetErrorString ("no location, value may have been optimized out");
+ error_ptr->SetErrorString("Expression stack empty for DW_OP_drop.");
return false;
- }
- std::vector<Value> stack;
-
- Process *process = NULL;
- StackFrame *frame = NULL;
-
- if (exe_ctx)
- {
- process = exe_ctx->GetProcessPtr();
- frame = exe_ctx->GetFramePtr();
- }
- if (reg_ctx == NULL && frame)
- reg_ctx = frame->GetRegisterContext().get();
-
- if (initial_value_ptr)
- stack.push_back(*initial_value_ptr);
-
- lldb::offset_t offset = opcodes_offset;
- const lldb::offset_t end_offset = opcodes_offset + opcodes_length;
- Value tmp;
- uint32_t reg_num;
-
- /// Insertion point for evaluating multi-piece expression.
- uint64_t op_piece_offset = 0;
- Value pieces; // Used for DW_OP_piece
-
- // Make sure all of the data is available in opcodes.
- if (!opcodes.ValidOffsetForDataOfSize(opcodes_offset, opcodes_length))
- {
+ } else
+ stack.pop_back();
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_over
+ // OPERANDS: none
+ // DESCRIPTION: Duplicates the entry currently second in the stack at
+ // the top of the stack.
+ //----------------------------------------------------------------------
+ case DW_OP_over:
+ if (stack.size() < 2) {
if (error_ptr)
- error_ptr->SetErrorString ("invalid offset and/or length for opcodes buffer.");
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_over.");
return false;
- }
- Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
-
+ } else
+ stack.push_back(stack[stack.size() - 2]);
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_pick
+ // OPERANDS: uint8_t index into the current stack
+ // DESCRIPTION: The stack entry with the specified index (0 through 255,
+ // inclusive) is pushed on the stack
+ //----------------------------------------------------------------------
+ case DW_OP_pick: {
+ uint8_t pick_idx = opcodes.GetU8(&offset);
+ if (pick_idx < stack.size())
+ stack.push_back(stack[pick_idx]);
+ else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "Index %u out of range for DW_OP_pick.\n", pick_idx);
+ return false;
+ }
+ } break;
- while (opcodes.ValidOffset(offset) && offset < end_offset)
- {
- const lldb::offset_t op_offset = offset;
- const uint8_t op = opcodes.GetU8(&offset);
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_swap
+ // OPERANDS: none
+ // DESCRIPTION: swaps the top two stack entries. The entry at the top
+ // of the stack becomes the second stack entry, and the second entry
+ // becomes the top of the stack
+ //----------------------------------------------------------------------
+ case DW_OP_swap:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_swap.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.back() = stack[stack.size() - 2];
+ stack[stack.size() - 2] = tmp;
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_rot
+ // OPERANDS: none
+ // DESCRIPTION: Rotates the first three stack entries. The entry at
+ // the top of the stack becomes the third stack entry, the second
+ // entry becomes the top of the stack, and the third entry becomes
+ // the second entry.
+ //----------------------------------------------------------------------
+ case DW_OP_rot:
+ if (stack.size() < 3) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 3 items for DW_OP_rot.");
+ return false;
+ } else {
+ size_t last_idx = stack.size() - 1;
+ Value old_top = stack[last_idx];
+ stack[last_idx] = stack[last_idx - 1];
+ stack[last_idx - 1] = stack[last_idx - 2];
+ stack[last_idx - 2] = old_top;
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_abs
+ // OPERANDS: none
+ // DESCRIPTION: pops the top stack entry, interprets it as a signed
+ // value and pushes its absolute value. If the absolute value can not be
+ // represented, the result is undefined.
+ //----------------------------------------------------------------------
+ case DW_OP_abs:
+ if (stack.empty()) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 1 item for DW_OP_abs.");
+ return false;
+ } else if (stack.back().ResolveValue(exe_ctx).AbsoluteValue() == false) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Failed to take the absolute value of the first stack item.");
+ return false;
+ }
+ break;
- if (log && log->GetVerbose())
- {
- size_t count = stack.size();
- log->Printf("Stack before operation has %" PRIu64 " values:", (uint64_t)count);
- for (size_t i=0; i<count; ++i)
- {
- StreamString new_value;
- new_value.Printf("[%" PRIu64 "]", (uint64_t)i);
- stack[i].Dump(&new_value);
- log->Printf(" %s", new_value.GetData());
- }
- log->Printf("0x%8.8" PRIx64 ": %s", op_offset, DW_OP_value_to_name(op));
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_and
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, performs a bitwise and
+ // operation on the two, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_and:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_and.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) & tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_div
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, divides the former second
+ // entry by the former top of the stack using signed division, and
+ // pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_div:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_div.");
+ return false;
+ } else {
+ tmp = stack.back();
+ if (tmp.ResolveValue(exe_ctx).IsZero()) {
+ if (error_ptr)
+ error_ptr->SetErrorString("Divide by zero.");
+ return false;
+ } else {
+ stack.pop_back();
+ stack.back() =
+ stack.back().ResolveValue(exe_ctx) / tmp.ResolveValue(exe_ctx);
+ if (!stack.back().ResolveValue(exe_ctx).IsValid()) {
+ if (error_ptr)
+ error_ptr->SetErrorString("Divide failed.");
+ return false;
+ }
}
- switch (op)
- {
- //----------------------------------------------------------------------
- // The DW_OP_addr operation has a single operand that encodes a machine
- // address and whose size is the size of an address on the target machine.
- //----------------------------------------------------------------------
- case DW_OP_addr:
- stack.push_back(Scalar(opcodes.GetAddress(&offset)));
- stack.back().SetValueType (Value::eValueTypeFileAddress);
- break;
-
- //----------------------------------------------------------------------
- // The DW_OP_addr_sect_offset4 is used for any location expressions in
- // shared libraries that have a location like:
- // DW_OP_addr(0x1000)
- // If this address resides in a shared library, then this virtual
- // address won't make sense when it is evaluated in the context of a
- // running process where shared libraries have been slid. To account for
- // this, this new address type where we can store the section pointer
- // and a 4 byte offset.
- //----------------------------------------------------------------------
-// case DW_OP_addr_sect_offset4:
-// {
-// result_type = eResultTypeFileAddress;
-// lldb::Section *sect = (lldb::Section *)opcodes.GetMaxU64(&offset, sizeof(void *));
-// lldb::addr_t sect_offset = opcodes.GetU32(&offset);
-//
-// Address so_addr (sect, sect_offset);
-// lldb::addr_t load_addr = so_addr.GetLoadAddress();
-// if (load_addr != LLDB_INVALID_ADDRESS)
-// {
-// // We successfully resolve a file address to a load
-// // address.
-// stack.push_back(load_addr);
-// break;
-// }
-// else
-// {
-// // We were able
-// if (error_ptr)
-// error_ptr->SetErrorStringWithFormat ("Section %s in %s is not currently loaded.\n", sect->GetName().AsCString(), sect->GetModule()->GetFileSpec().GetFilename().AsCString());
-// return false;
-// }
-// }
-// break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_deref
- // OPERANDS: none
- // DESCRIPTION: Pops the top stack entry and treats it as an address.
- // The value retrieved from that address is pushed. The size of the
- // data retrieved from the dereferenced address is the size of an
- // address on the target machine.
- //----------------------------------------------------------------------
- case DW_OP_deref:
- {
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack empty for DW_OP_deref.");
- return false;
- }
- Value::ValueType value_type = stack.back().GetValueType();
- switch (value_type)
- {
- case Value::eValueTypeHostAddress:
- {
- void *src = (void *)stack.back().GetScalar().ULongLong();
- intptr_t ptr;
- ::memcpy (&ptr, src, sizeof(void *));
- stack.back().GetScalar() = ptr;
- stack.back().ClearContext();
- }
- break;
- case Value::eValueTypeLoadAddress:
- if (exe_ctx)
- {
- if (process)
- {
- lldb::addr_t pointer_addr = stack.back().GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
- Error error;
- lldb::addr_t pointer_value = process->ReadPointerFromMemory(pointer_addr, error);
- if (pointer_value != LLDB_INVALID_ADDRESS)
- {
- stack.back().GetScalar() = pointer_value;
- stack.back().ClearContext();
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("Failed to dereference pointer from 0x%" PRIx64 " for DW_OP_deref: %s\n",
- pointer_addr,
- error.AsCString());
- return false;
- }
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("NULL process for DW_OP_deref.\n");
- return false;
- }
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("NULL execution context for DW_OP_deref.\n");
- return false;
- }
- break;
+ }
+ break;
- default:
- break;
- }
-
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_deref_size
- // OPERANDS: 1
- // 1 - uint8_t that specifies the size of the data to dereference.
- // DESCRIPTION: Behaves like the DW_OP_deref operation: it pops the top
- // stack entry and treats it as an address. The value retrieved from that
- // address is pushed. In the DW_OP_deref_size operation, however, the
- // size in bytes of the data retrieved from the dereferenced address is
- // specified by the single operand. This operand is a 1-byte unsigned
- // integral constant whose value may not be larger than the size of an
- // address on the target machine. The data retrieved is zero extended
- // to the size of an address on the target machine before being pushed
- // on the expression stack.
- //----------------------------------------------------------------------
- case DW_OP_deref_size:
- {
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack empty for DW_OP_deref_size.");
- return false;
- }
- uint8_t size = opcodes.GetU8(&offset);
- Value::ValueType value_type = stack.back().GetValueType();
- switch (value_type)
- {
- case Value::eValueTypeHostAddress:
- {
- void *src = (void *)stack.back().GetScalar().ULongLong();
- intptr_t ptr;
- ::memcpy (&ptr, src, sizeof(void *));
- // I can't decide whether the size operand should apply to the bytes in their
- // lldb-host endianness or the target endianness.. I doubt this'll ever come up
- // but I'll opt for assuming big endian regardless.
- switch (size)
- {
- case 1: ptr = ptr & 0xff; break;
- case 2: ptr = ptr & 0xffff; break;
- case 3: ptr = ptr & 0xffffff; break;
- case 4: ptr = ptr & 0xffffffff; break;
- // the casts are added to work around the case where intptr_t is a 32 bit quantity;
- // presumably we won't hit the 5..7 cases if (void*) is 32-bits in this program.
- case 5: ptr = (intptr_t) ptr & 0xffffffffffULL; break;
- case 6: ptr = (intptr_t) ptr & 0xffffffffffffULL; break;
- case 7: ptr = (intptr_t) ptr & 0xffffffffffffffULL; break;
- default: break;
- }
- stack.back().GetScalar() = ptr;
- stack.back().ClearContext();
- }
- break;
- case Value::eValueTypeLoadAddress:
- if (exe_ctx)
- {
- if (process)
- {
- lldb::addr_t pointer_addr = stack.back().GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
- uint8_t addr_bytes[sizeof(lldb::addr_t)];
- Error error;
- if (process->ReadMemory(pointer_addr, &addr_bytes, size, error) == size)
- {
- DataExtractor addr_data(addr_bytes, sizeof(addr_bytes), process->GetByteOrder(), size);
- lldb::offset_t addr_data_offset = 0;
- switch (size)
- {
- case 1: stack.back().GetScalar() = addr_data.GetU8(&addr_data_offset); break;
- case 2: stack.back().GetScalar() = addr_data.GetU16(&addr_data_offset); break;
- case 4: stack.back().GetScalar() = addr_data.GetU32(&addr_data_offset); break;
- case 8: stack.back().GetScalar() = addr_data.GetU64(&addr_data_offset); break;
- default: stack.back().GetScalar() = addr_data.GetPointer(&addr_data_offset);
- }
- stack.back().ClearContext();
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("Failed to dereference pointer from 0x%" PRIx64 " for DW_OP_deref: %s\n",
- pointer_addr,
- error.AsCString());
- return false;
- }
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("NULL process for DW_OP_deref.\n");
- return false;
- }
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("NULL execution context for DW_OP_deref.\n");
- return false;
- }
- break;
-
- default:
- break;
- }
-
- }
- break;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_minus
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, subtracts the former top
+ // of the stack from the former second entry, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_minus:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_minus.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) - tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_mod
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values and pushes the result of
+ // the calculation: former second stack entry modulo the former top of
+ // the stack.
+ //----------------------------------------------------------------------
+ case DW_OP_mod:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_mod.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) % tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_mul
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack entries, multiplies them
+ // together, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_mul:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_mul.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) * tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_neg
+ // OPERANDS: none
+ // DESCRIPTION: pops the top stack entry, and pushes its negation.
+ //----------------------------------------------------------------------
+ case DW_OP_neg:
+ if (stack.empty()) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 1 item for DW_OP_neg.");
+ return false;
+ } else {
+ if (stack.back().ResolveValue(exe_ctx).UnaryNegate() == false) {
+ if (error_ptr)
+ error_ptr->SetErrorString("Unary negate failed.");
+ return false;
+ }
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_not
+ // OPERANDS: none
+ // DESCRIPTION: pops the top stack entry, and pushes its bitwise
+ // complement
+ //----------------------------------------------------------------------
+ case DW_OP_not:
+ if (stack.empty()) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 1 item for DW_OP_not.");
+ return false;
+ } else {
+ if (stack.back().ResolveValue(exe_ctx).OnesComplement() == false) {
+ if (error_ptr)
+ error_ptr->SetErrorString("Logical NOT failed.");
+ return false;
+ }
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_or
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack entries, performs a bitwise or
+ // operation on the two, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_or:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_or.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) | tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_plus
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack entries, adds them together, and
+ // pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_plus:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_plus.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().GetScalar() += tmp.GetScalar();
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_plus_uconst
+ // OPERANDS: none
+ // DESCRIPTION: pops the top stack entry, adds it to the unsigned LEB128
+ // constant operand and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_plus_uconst:
+ if (stack.empty()) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 1 item for DW_OP_plus_uconst.");
+ return false;
+ } else {
+ const uint64_t uconst_value = opcodes.GetULEB128(&offset);
+ // Implicit conversion from a UINT to a Scalar...
+ stack.back().GetScalar() += uconst_value;
+ if (!stack.back().GetScalar().IsValid()) {
+ if (error_ptr)
+ error_ptr->SetErrorString("DW_OP_plus_uconst failed.");
+ return false;
+ }
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_shl
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack entries, shifts the former
+ // second entry left by the number of bits specified by the former top
+ // of the stack, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_shl:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_shl.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) <<= tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_shr
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack entries, shifts the former second
+ // entry right logically (filling with zero bits) by the number of bits
+ // specified by the former top of the stack, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_shr:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_shr.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ if (stack.back().ResolveValue(exe_ctx).ShiftRightLogical(
+ tmp.ResolveValue(exe_ctx)) == false) {
+ if (error_ptr)
+ error_ptr->SetErrorString("DW_OP_shr failed.");
+ return false;
+ }
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_shra
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack entries, shifts the former second
+ // entry right arithmetically (divide the magnitude by 2, keep the same
+ // sign for the result) by the number of bits specified by the former
+ // top of the stack, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_shra:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_shra.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) >>= tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_xor
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack entries, performs the bitwise
+ // exclusive-or operation on the two, and pushes the result.
+ //----------------------------------------------------------------------
+ case DW_OP_xor:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_xor.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) ^ tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_skip
+ // OPERANDS: int16_t
+ // DESCRIPTION: An unconditional branch. Its single operand is a 2-byte
+ // signed integer constant. The 2-byte constant is the number of bytes
+ // of the DWARF expression to skip forward or backward from the current
+ // operation, beginning after the 2-byte constant.
+ //----------------------------------------------------------------------
+ case DW_OP_skip: {
+ int16_t skip_offset = (int16_t)opcodes.GetU16(&offset);
+ lldb::offset_t new_offset = offset + skip_offset;
+ if (new_offset >= opcodes_offset && new_offset < end_offset)
+ offset = new_offset;
+ else {
+ if (error_ptr)
+ error_ptr->SetErrorString("Invalid opcode offset in DW_OP_skip.");
+ return false;
+ }
+ } break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_xderef_size
- // OPERANDS: 1
- // 1 - uint8_t that specifies the size of the data to dereference.
- // DESCRIPTION: Behaves like the DW_OP_xderef operation: the entry at
- // the top of the stack is treated as an address. The second stack
- // entry is treated as an "address space identifier" for those
- // architectures that support multiple address spaces. The top two
- // stack elements are popped, a data item is retrieved through an
- // implementation-defined address calculation and pushed as the new
- // stack top. In the DW_OP_xderef_size operation, however, the size in
- // bytes of the data retrieved from the dereferenced address is
- // specified by the single operand. This operand is a 1-byte unsigned
- // integral constant whose value may not be larger than the size of an
- // address on the target machine. The data retrieved is zero extended
- // to the size of an address on the target machine before being pushed
- // on the expression stack.
- //----------------------------------------------------------------------
- case DW_OP_xderef_size:
- if (error_ptr)
- error_ptr->SetErrorString("Unimplemented opcode: DW_OP_xderef_size.");
- return false;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_xderef
- // OPERANDS: none
- // DESCRIPTION: Provides an extended dereference mechanism. The entry at
- // the top of the stack is treated as an address. The second stack entry
- // is treated as an "address space identifier" for those architectures
- // that support multiple address spaces. The top two stack elements are
- // popped, a data item is retrieved through an implementation-defined
- // address calculation and pushed as the new stack top. The size of the
- // data retrieved from the dereferenced address is the size of an address
- // on the target machine.
- //----------------------------------------------------------------------
- case DW_OP_xderef:
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_bra
+ // OPERANDS: int16_t
+ // DESCRIPTION: A conditional branch. Its single operand is a 2-byte
+ // signed integer constant. This operation pops the top of stack. If
+ // the value popped is not the constant 0, the 2-byte constant operand
+ // is the number of bytes of the DWARF expression to skip forward or
+ // backward from the current operation, beginning after the 2-byte
+ // constant.
+ //----------------------------------------------------------------------
+ case DW_OP_bra:
+ if (stack.empty()) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 1 item for DW_OP_bra.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ int16_t bra_offset = (int16_t)opcodes.GetU16(&offset);
+ Scalar zero(0);
+ if (tmp.ResolveValue(exe_ctx) != zero) {
+ lldb::offset_t new_offset = offset + bra_offset;
+ if (new_offset >= opcodes_offset && new_offset < end_offset)
+ offset = new_offset;
+ else {
if (error_ptr)
- error_ptr->SetErrorString("Unimplemented opcode: DW_OP_xderef.");
+ error_ptr->SetErrorString("Invalid opcode offset in DW_OP_bra.");
return false;
+ }
+ }
+ }
+ break;
- //----------------------------------------------------------------------
- // All DW_OP_constXXX opcodes have a single operand as noted below:
- //
- // Opcode Operand 1
- // --------------- ----------------------------------------------------
- // DW_OP_const1u 1-byte unsigned integer constant
- // DW_OP_const1s 1-byte signed integer constant
- // DW_OP_const2u 2-byte unsigned integer constant
- // DW_OP_const2s 2-byte signed integer constant
- // DW_OP_const4u 4-byte unsigned integer constant
- // DW_OP_const4s 4-byte signed integer constant
- // DW_OP_const8u 8-byte unsigned integer constant
- // DW_OP_const8s 8-byte signed integer constant
- // DW_OP_constu unsigned LEB128 integer constant
- // DW_OP_consts signed LEB128 integer constant
- //----------------------------------------------------------------------
- case DW_OP_const1u : stack.push_back(Scalar(( uint8_t)opcodes.GetU8 (&offset))); break;
- case DW_OP_const1s : stack.push_back(Scalar(( int8_t)opcodes.GetU8 (&offset))); break;
- case DW_OP_const2u : stack.push_back(Scalar((uint16_t)opcodes.GetU16 (&offset))); break;
- case DW_OP_const2s : stack.push_back(Scalar(( int16_t)opcodes.GetU16 (&offset))); break;
- case DW_OP_const4u : stack.push_back(Scalar((uint32_t)opcodes.GetU32 (&offset))); break;
- case DW_OP_const4s : stack.push_back(Scalar(( int32_t)opcodes.GetU32 (&offset))); break;
- case DW_OP_const8u : stack.push_back(Scalar((uint64_t)opcodes.GetU64 (&offset))); break;
- case DW_OP_const8s : stack.push_back(Scalar(( int64_t)opcodes.GetU64 (&offset))); break;
- case DW_OP_constu : stack.push_back(Scalar(opcodes.GetULEB128 (&offset))); break;
- case DW_OP_consts : stack.push_back(Scalar(opcodes.GetSLEB128 (&offset))); break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_dup
- // OPERANDS: none
- // DESCRIPTION: duplicates the value at the top of the stack
- //----------------------------------------------------------------------
- case DW_OP_dup:
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack empty for DW_OP_dup.");
- return false;
- }
- else
- stack.push_back(stack.back());
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_drop
- // OPERANDS: none
- // DESCRIPTION: pops the value at the top of the stack
- //----------------------------------------------------------------------
- case DW_OP_drop:
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack empty for DW_OP_drop.");
- return false;
- }
- else
- stack.pop_back();
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_over
- // OPERANDS: none
- // DESCRIPTION: Duplicates the entry currently second in the stack at
- // the top of the stack.
- //----------------------------------------------------------------------
- case DW_OP_over:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_over.");
- return false;
- }
- else
- stack.push_back(stack[stack.size() - 2]);
- break;
-
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_pick
- // OPERANDS: uint8_t index into the current stack
- // DESCRIPTION: The stack entry with the specified index (0 through 255,
- // inclusive) is pushed on the stack
- //----------------------------------------------------------------------
- case DW_OP_pick:
- {
- uint8_t pick_idx = opcodes.GetU8(&offset);
- if (pick_idx < stack.size())
- stack.push_back(stack[pick_idx]);
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat("Index %u out of range for DW_OP_pick.\n", pick_idx);
- return false;
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_swap
- // OPERANDS: none
- // DESCRIPTION: swaps the top two stack entries. The entry at the top
- // of the stack becomes the second stack entry, and the second entry
- // becomes the top of the stack
- //----------------------------------------------------------------------
- case DW_OP_swap:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_swap.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.back() = stack[stack.size() - 2];
- stack[stack.size() - 2] = tmp;
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_rot
- // OPERANDS: none
- // DESCRIPTION: Rotates the first three stack entries. The entry at
- // the top of the stack becomes the third stack entry, the second
- // entry becomes the top of the stack, and the third entry becomes
- // the second entry.
- //----------------------------------------------------------------------
- case DW_OP_rot:
- if (stack.size() < 3)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 3 items for DW_OP_rot.");
- return false;
- }
- else
- {
- size_t last_idx = stack.size() - 1;
- Value old_top = stack[last_idx];
- stack[last_idx] = stack[last_idx - 1];
- stack[last_idx - 1] = stack[last_idx - 2];
- stack[last_idx - 2] = old_top;
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_abs
- // OPERANDS: none
- // DESCRIPTION: pops the top stack entry, interprets it as a signed
- // value and pushes its absolute value. If the absolute value can not be
- // represented, the result is undefined.
- //----------------------------------------------------------------------
- case DW_OP_abs:
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 1 item for DW_OP_abs.");
- return false;
- }
- else if (stack.back().ResolveValue(exe_ctx).AbsoluteValue() == false)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Failed to take the absolute value of the first stack item.");
- return false;
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_and
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, performs a bitwise and
- // operation on the two, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_and:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_and.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) & tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_div
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, divides the former second
- // entry by the former top of the stack using signed division, and
- // pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_div:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_div.");
- return false;
- }
- else
- {
- tmp = stack.back();
- if (tmp.ResolveValue(exe_ctx).IsZero())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Divide by zero.");
- return false;
- }
- else
- {
- stack.pop_back();
- stack.back() = stack.back().ResolveValue(exe_ctx) / tmp.ResolveValue(exe_ctx);
- if (!stack.back().ResolveValue(exe_ctx).IsValid())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Divide failed.");
- return false;
- }
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_minus
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, subtracts the former top
- // of the stack from the former second entry, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_minus:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_minus.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) - tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_mod
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values and pushes the result of
- // the calculation: former second stack entry modulo the former top of
- // the stack.
- //----------------------------------------------------------------------
- case DW_OP_mod:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_mod.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) % tmp.ResolveValue(exe_ctx);
- }
- break;
-
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_mul
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack entries, multiplies them
- // together, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_mul:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_mul.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) * tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_neg
- // OPERANDS: none
- // DESCRIPTION: pops the top stack entry, and pushes its negation.
- //----------------------------------------------------------------------
- case DW_OP_neg:
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 1 item for DW_OP_neg.");
- return false;
- }
- else
- {
- if (stack.back().ResolveValue(exe_ctx).UnaryNegate() == false)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Unary negate failed.");
- return false;
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_not
- // OPERANDS: none
- // DESCRIPTION: pops the top stack entry, and pushes its bitwise
- // complement
- //----------------------------------------------------------------------
- case DW_OP_not:
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 1 item for DW_OP_not.");
- return false;
- }
- else
- {
- if (stack.back().ResolveValue(exe_ctx).OnesComplement() == false)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Logical NOT failed.");
- return false;
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_or
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack entries, performs a bitwise or
- // operation on the two, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_or:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_or.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) | tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_plus
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack entries, adds them together, and
- // pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_plus:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_plus.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().GetScalar() += tmp.GetScalar();
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_plus_uconst
- // OPERANDS: none
- // DESCRIPTION: pops the top stack entry, adds it to the unsigned LEB128
- // constant operand and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_plus_uconst:
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 1 item for DW_OP_plus_uconst.");
- return false;
- }
- else
- {
- const uint64_t uconst_value = opcodes.GetULEB128(&offset);
- // Implicit conversion from a UINT to a Scalar...
- stack.back().GetScalar() += uconst_value;
- if (!stack.back().GetScalar().IsValid())
- {
- if (error_ptr)
- error_ptr->SetErrorString("DW_OP_plus_uconst failed.");
- return false;
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_shl
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack entries, shifts the former
- // second entry left by the number of bits specified by the former top
- // of the stack, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_shl:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_shl.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) <<= tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_shr
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack entries, shifts the former second
- // entry right logically (filling with zero bits) by the number of bits
- // specified by the former top of the stack, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_shr:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_shr.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- if (stack.back().ResolveValue(exe_ctx).ShiftRightLogical(tmp.ResolveValue(exe_ctx)) == false)
- {
- if (error_ptr)
- error_ptr->SetErrorString("DW_OP_shr failed.");
- return false;
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_shra
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack entries, shifts the former second
- // entry right arithmetically (divide the magnitude by 2, keep the same
- // sign for the result) by the number of bits specified by the former
- // top of the stack, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_shra:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_shra.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) >>= tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_xor
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack entries, performs the bitwise
- // exclusive-or operation on the two, and pushes the result.
- //----------------------------------------------------------------------
- case DW_OP_xor:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_xor.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) ^ tmp.ResolveValue(exe_ctx);
- }
- break;
-
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_skip
- // OPERANDS: int16_t
- // DESCRIPTION: An unconditional branch. Its single operand is a 2-byte
- // signed integer constant. The 2-byte constant is the number of bytes
- // of the DWARF expression to skip forward or backward from the current
- // operation, beginning after the 2-byte constant.
- //----------------------------------------------------------------------
- case DW_OP_skip:
- {
- int16_t skip_offset = (int16_t)opcodes.GetU16(&offset);
- lldb::offset_t new_offset = offset + skip_offset;
- if (new_offset >= opcodes_offset && new_offset < end_offset)
- offset = new_offset;
- else
- {
- if (error_ptr)
- error_ptr->SetErrorString("Invalid opcode offset in DW_OP_skip.");
- return false;
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_bra
- // OPERANDS: int16_t
- // DESCRIPTION: A conditional branch. Its single operand is a 2-byte
- // signed integer constant. This operation pops the top of stack. If
- // the value popped is not the constant 0, the 2-byte constant operand
- // is the number of bytes of the DWARF expression to skip forward or
- // backward from the current operation, beginning after the 2-byte
- // constant.
- //----------------------------------------------------------------------
- case DW_OP_bra:
- if (stack.empty())
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 1 item for DW_OP_bra.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- int16_t bra_offset = (int16_t)opcodes.GetU16(&offset);
- Scalar zero(0);
- if (tmp.ResolveValue(exe_ctx) != zero)
- {
- lldb::offset_t new_offset = offset + bra_offset;
- if (new_offset >= opcodes_offset && new_offset < end_offset)
- offset = new_offset;
- else
- {
- if (error_ptr)
- error_ptr->SetErrorString("Invalid opcode offset in DW_OP_bra.");
- return false;
- }
- }
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_eq
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, compares using the
- // equals (==) operator.
- // STACK RESULT: push the constant value 1 onto the stack if the result
- // of the operation is true or the constant value 0 if the result of the
- // operation is false.
- //----------------------------------------------------------------------
- case DW_OP_eq:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_eq.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) == tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_ge
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, compares using the
- // greater than or equal to (>=) operator.
- // STACK RESULT: push the constant value 1 onto the stack if the result
- // of the operation is true or the constant value 0 if the result of the
- // operation is false.
- //----------------------------------------------------------------------
- case DW_OP_ge:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_ge.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) >= tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_gt
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, compares using the
- // greater than (>) operator.
- // STACK RESULT: push the constant value 1 onto the stack if the result
- // of the operation is true or the constant value 0 if the result of the
- // operation is false.
- //----------------------------------------------------------------------
- case DW_OP_gt:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_gt.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) > tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_le
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, compares using the
- // less than or equal to (<=) operator.
- // STACK RESULT: push the constant value 1 onto the stack if the result
- // of the operation is true or the constant value 0 if the result of the
- // operation is false.
- //----------------------------------------------------------------------
- case DW_OP_le:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_le.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) <= tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_lt
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, compares using the
- // less than (<) operator.
- // STACK RESULT: push the constant value 1 onto the stack if the result
- // of the operation is true or the constant value 0 if the result of the
- // operation is false.
- //----------------------------------------------------------------------
- case DW_OP_lt:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_lt.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) < tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_ne
- // OPERANDS: none
- // DESCRIPTION: pops the top two stack values, compares using the
- // not equal (!=) operator.
- // STACK RESULT: push the constant value 1 onto the stack if the result
- // of the operation is true or the constant value 0 if the result of the
- // operation is false.
- //----------------------------------------------------------------------
- case DW_OP_ne:
- if (stack.size() < 2)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 2 items for DW_OP_ne.");
- return false;
- }
- else
- {
- tmp = stack.back();
- stack.pop_back();
- stack.back().ResolveValue(exe_ctx) = stack.back().ResolveValue(exe_ctx) != tmp.ResolveValue(exe_ctx);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_litn
- // OPERANDS: none
- // DESCRIPTION: encode the unsigned literal values from 0 through 31.
- // STACK RESULT: push the unsigned literal constant value onto the top
- // of the stack.
- //----------------------------------------------------------------------
- case DW_OP_lit0:
- case DW_OP_lit1:
- case DW_OP_lit2:
- case DW_OP_lit3:
- case DW_OP_lit4:
- case DW_OP_lit5:
- case DW_OP_lit6:
- case DW_OP_lit7:
- case DW_OP_lit8:
- case DW_OP_lit9:
- case DW_OP_lit10:
- case DW_OP_lit11:
- case DW_OP_lit12:
- case DW_OP_lit13:
- case DW_OP_lit14:
- case DW_OP_lit15:
- case DW_OP_lit16:
- case DW_OP_lit17:
- case DW_OP_lit18:
- case DW_OP_lit19:
- case DW_OP_lit20:
- case DW_OP_lit21:
- case DW_OP_lit22:
- case DW_OP_lit23:
- case DW_OP_lit24:
- case DW_OP_lit25:
- case DW_OP_lit26:
- case DW_OP_lit27:
- case DW_OP_lit28:
- case DW_OP_lit29:
- case DW_OP_lit30:
- case DW_OP_lit31:
- stack.push_back(Scalar(op - DW_OP_lit0));
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_regN
- // OPERANDS: none
- // DESCRIPTION: Push the value in register n on the top of the stack.
- //----------------------------------------------------------------------
- case DW_OP_reg0:
- case DW_OP_reg1:
- case DW_OP_reg2:
- case DW_OP_reg3:
- case DW_OP_reg4:
- case DW_OP_reg5:
- case DW_OP_reg6:
- case DW_OP_reg7:
- case DW_OP_reg8:
- case DW_OP_reg9:
- case DW_OP_reg10:
- case DW_OP_reg11:
- case DW_OP_reg12:
- case DW_OP_reg13:
- case DW_OP_reg14:
- case DW_OP_reg15:
- case DW_OP_reg16:
- case DW_OP_reg17:
- case DW_OP_reg18:
- case DW_OP_reg19:
- case DW_OP_reg20:
- case DW_OP_reg21:
- case DW_OP_reg22:
- case DW_OP_reg23:
- case DW_OP_reg24:
- case DW_OP_reg25:
- case DW_OP_reg26:
- case DW_OP_reg27:
- case DW_OP_reg28:
- case DW_OP_reg29:
- case DW_OP_reg30:
- case DW_OP_reg31:
- {
- reg_num = op - DW_OP_reg0;
-
- if (ReadRegisterValueAsScalar (reg_ctx, reg_kind, reg_num, error_ptr, tmp))
- stack.push_back(tmp);
- else
- return false;
- }
- break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_regx
- // OPERANDS:
- // ULEB128 literal operand that encodes the register.
- // DESCRIPTION: Push the value in register on the top of the stack.
- //----------------------------------------------------------------------
- case DW_OP_regx:
- {
- reg_num = opcodes.GetULEB128(&offset);
- if (ReadRegisterValueAsScalar (reg_ctx, reg_kind, reg_num, error_ptr, tmp))
- stack.push_back(tmp);
- else
- return false;
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_bregN
- // OPERANDS:
- // SLEB128 offset from register N
- // DESCRIPTION: Value is in memory at the address specified by register
- // N plus an offset.
- //----------------------------------------------------------------------
- case DW_OP_breg0:
- case DW_OP_breg1:
- case DW_OP_breg2:
- case DW_OP_breg3:
- case DW_OP_breg4:
- case DW_OP_breg5:
- case DW_OP_breg6:
- case DW_OP_breg7:
- case DW_OP_breg8:
- case DW_OP_breg9:
- case DW_OP_breg10:
- case DW_OP_breg11:
- case DW_OP_breg12:
- case DW_OP_breg13:
- case DW_OP_breg14:
- case DW_OP_breg15:
- case DW_OP_breg16:
- case DW_OP_breg17:
- case DW_OP_breg18:
- case DW_OP_breg19:
- case DW_OP_breg20:
- case DW_OP_breg21:
- case DW_OP_breg22:
- case DW_OP_breg23:
- case DW_OP_breg24:
- case DW_OP_breg25:
- case DW_OP_breg26:
- case DW_OP_breg27:
- case DW_OP_breg28:
- case DW_OP_breg29:
- case DW_OP_breg30:
- case DW_OP_breg31:
- {
- reg_num = op - DW_OP_breg0;
-
- if (ReadRegisterValueAsScalar (reg_ctx, reg_kind, reg_num, error_ptr, tmp))
- {
- int64_t breg_offset = opcodes.GetSLEB128(&offset);
- tmp.ResolveValue(exe_ctx) += (uint64_t)breg_offset;
- tmp.ClearContext();
- stack.push_back(tmp);
- stack.back().SetValueType (Value::eValueTypeLoadAddress);
- }
- else
- return false;
- }
- break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_bregx
- // OPERANDS: 2
- // ULEB128 literal operand that encodes the register.
- // SLEB128 offset from register N
- // DESCRIPTION: Value is in memory at the address specified by register
- // N plus an offset.
- //----------------------------------------------------------------------
- case DW_OP_bregx:
- {
- reg_num = opcodes.GetULEB128(&offset);
-
- if (ReadRegisterValueAsScalar (reg_ctx, reg_kind, reg_num, error_ptr, tmp))
- {
- int64_t breg_offset = opcodes.GetSLEB128(&offset);
- tmp.ResolveValue(exe_ctx) += (uint64_t)breg_offset;
- tmp.ClearContext();
- stack.push_back(tmp);
- stack.back().SetValueType (Value::eValueTypeLoadAddress);
- }
- else
- return false;
- }
- break;
-
- case DW_OP_fbreg:
- if (exe_ctx)
- {
- if (frame)
- {
- Scalar value;
- if (frame->GetFrameBaseValue(value, error_ptr))
- {
- int64_t fbreg_offset = opcodes.GetSLEB128(&offset);
- value += fbreg_offset;
- stack.push_back(value);
- stack.back().SetValueType (Value::eValueTypeLoadAddress);
- }
- else
- return false;
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorString ("Invalid stack frame in context for DW_OP_fbreg opcode.");
- return false;
- }
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("NULL execution context for DW_OP_fbreg.\n");
- return false;
- }
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_eq
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, compares using the
+ // equals (==) operator.
+ // STACK RESULT: push the constant value 1 onto the stack if the result
+ // of the operation is true or the constant value 0 if the result of the
+ // operation is false.
+ //----------------------------------------------------------------------
+ case DW_OP_eq:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_eq.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) == tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_ge
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, compares using the
+ // greater than or equal to (>=) operator.
+ // STACK RESULT: push the constant value 1 onto the stack if the result
+ // of the operation is true or the constant value 0 if the result of the
+ // operation is false.
+ //----------------------------------------------------------------------
+ case DW_OP_ge:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_ge.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) >= tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_gt
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, compares using the
+ // greater than (>) operator.
+ // STACK RESULT: push the constant value 1 onto the stack if the result
+ // of the operation is true or the constant value 0 if the result of the
+ // operation is false.
+ //----------------------------------------------------------------------
+ case DW_OP_gt:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_gt.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) > tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_le
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, compares using the
+ // less than or equal to (<=) operator.
+ // STACK RESULT: push the constant value 1 onto the stack if the result
+ // of the operation is true or the constant value 0 if the result of the
+ // operation is false.
+ //----------------------------------------------------------------------
+ case DW_OP_le:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_le.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) <= tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_lt
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, compares using the
+ // less than (<) operator.
+ // STACK RESULT: push the constant value 1 onto the stack if the result
+ // of the operation is true or the constant value 0 if the result of the
+ // operation is false.
+ //----------------------------------------------------------------------
+ case DW_OP_lt:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_lt.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) < tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_ne
+ // OPERANDS: none
+ // DESCRIPTION: pops the top two stack values, compares using the
+ // not equal (!=) operator.
+ // STACK RESULT: push the constant value 1 onto the stack if the result
+ // of the operation is true or the constant value 0 if the result of the
+ // operation is false.
+ //----------------------------------------------------------------------
+ case DW_OP_ne:
+ if (stack.size() < 2) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 2 items for DW_OP_ne.");
+ return false;
+ } else {
+ tmp = stack.back();
+ stack.pop_back();
+ stack.back().ResolveValue(exe_ctx) =
+ stack.back().ResolveValue(exe_ctx) != tmp.ResolveValue(exe_ctx);
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_litn
+ // OPERANDS: none
+ // DESCRIPTION: encode the unsigned literal values from 0 through 31.
+ // STACK RESULT: push the unsigned literal constant value onto the top
+ // of the stack.
+ //----------------------------------------------------------------------
+ case DW_OP_lit0:
+ case DW_OP_lit1:
+ case DW_OP_lit2:
+ case DW_OP_lit3:
+ case DW_OP_lit4:
+ case DW_OP_lit5:
+ case DW_OP_lit6:
+ case DW_OP_lit7:
+ case DW_OP_lit8:
+ case DW_OP_lit9:
+ case DW_OP_lit10:
+ case DW_OP_lit11:
+ case DW_OP_lit12:
+ case DW_OP_lit13:
+ case DW_OP_lit14:
+ case DW_OP_lit15:
+ case DW_OP_lit16:
+ case DW_OP_lit17:
+ case DW_OP_lit18:
+ case DW_OP_lit19:
+ case DW_OP_lit20:
+ case DW_OP_lit21:
+ case DW_OP_lit22:
+ case DW_OP_lit23:
+ case DW_OP_lit24:
+ case DW_OP_lit25:
+ case DW_OP_lit26:
+ case DW_OP_lit27:
+ case DW_OP_lit28:
+ case DW_OP_lit29:
+ case DW_OP_lit30:
+ case DW_OP_lit31:
+ stack.push_back(Scalar(op - DW_OP_lit0));
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_regN
+ // OPERANDS: none
+ // DESCRIPTION: Push the value in register n on the top of the stack.
+ //----------------------------------------------------------------------
+ case DW_OP_reg0:
+ case DW_OP_reg1:
+ case DW_OP_reg2:
+ case DW_OP_reg3:
+ case DW_OP_reg4:
+ case DW_OP_reg5:
+ case DW_OP_reg6:
+ case DW_OP_reg7:
+ case DW_OP_reg8:
+ case DW_OP_reg9:
+ case DW_OP_reg10:
+ case DW_OP_reg11:
+ case DW_OP_reg12:
+ case DW_OP_reg13:
+ case DW_OP_reg14:
+ case DW_OP_reg15:
+ case DW_OP_reg16:
+ case DW_OP_reg17:
+ case DW_OP_reg18:
+ case DW_OP_reg19:
+ case DW_OP_reg20:
+ case DW_OP_reg21:
+ case DW_OP_reg22:
+ case DW_OP_reg23:
+ case DW_OP_reg24:
+ case DW_OP_reg25:
+ case DW_OP_reg26:
+ case DW_OP_reg27:
+ case DW_OP_reg28:
+ case DW_OP_reg29:
+ case DW_OP_reg30:
+ case DW_OP_reg31: {
+ reg_num = op - DW_OP_reg0;
+
+ if (ReadRegisterValueAsScalar(reg_ctx, reg_kind, reg_num, error_ptr, tmp))
+ stack.push_back(tmp);
+ else
+ return false;
+ } break;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_regx
+ // OPERANDS:
+ // ULEB128 literal operand that encodes the register.
+ // DESCRIPTION: Push the value in register on the top of the stack.
+ //----------------------------------------------------------------------
+ case DW_OP_regx: {
+ reg_num = opcodes.GetULEB128(&offset);
+ if (ReadRegisterValueAsScalar(reg_ctx, reg_kind, reg_num, error_ptr, tmp))
+ stack.push_back(tmp);
+ else
+ return false;
+ } break;
- break;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_bregN
+ // OPERANDS:
+ // SLEB128 offset from register N
+ // DESCRIPTION: Value is in memory at the address specified by register
+ // N plus an offset.
+ //----------------------------------------------------------------------
+ case DW_OP_breg0:
+ case DW_OP_breg1:
+ case DW_OP_breg2:
+ case DW_OP_breg3:
+ case DW_OP_breg4:
+ case DW_OP_breg5:
+ case DW_OP_breg6:
+ case DW_OP_breg7:
+ case DW_OP_breg8:
+ case DW_OP_breg9:
+ case DW_OP_breg10:
+ case DW_OP_breg11:
+ case DW_OP_breg12:
+ case DW_OP_breg13:
+ case DW_OP_breg14:
+ case DW_OP_breg15:
+ case DW_OP_breg16:
+ case DW_OP_breg17:
+ case DW_OP_breg18:
+ case DW_OP_breg19:
+ case DW_OP_breg20:
+ case DW_OP_breg21:
+ case DW_OP_breg22:
+ case DW_OP_breg23:
+ case DW_OP_breg24:
+ case DW_OP_breg25:
+ case DW_OP_breg26:
+ case DW_OP_breg27:
+ case DW_OP_breg28:
+ case DW_OP_breg29:
+ case DW_OP_breg30:
+ case DW_OP_breg31: {
+ reg_num = op - DW_OP_breg0;
+
+ if (ReadRegisterValueAsScalar(reg_ctx, reg_kind, reg_num, error_ptr,
+ tmp)) {
+ int64_t breg_offset = opcodes.GetSLEB128(&offset);
+ tmp.ResolveValue(exe_ctx) += (uint64_t)breg_offset;
+ tmp.ClearContext();
+ stack.push_back(tmp);
+ stack.back().SetValueType(Value::eValueTypeLoadAddress);
+ } else
+ return false;
+ } break;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_bregx
+ // OPERANDS: 2
+ // ULEB128 literal operand that encodes the register.
+ // SLEB128 offset from register N
+ // DESCRIPTION: Value is in memory at the address specified by register
+ // N plus an offset.
+ //----------------------------------------------------------------------
+ case DW_OP_bregx: {
+ reg_num = opcodes.GetULEB128(&offset);
+
+ if (ReadRegisterValueAsScalar(reg_ctx, reg_kind, reg_num, error_ptr,
+ tmp)) {
+ int64_t breg_offset = opcodes.GetSLEB128(&offset);
+ tmp.ResolveValue(exe_ctx) += (uint64_t)breg_offset;
+ tmp.ClearContext();
+ stack.push_back(tmp);
+ stack.back().SetValueType(Value::eValueTypeLoadAddress);
+ } else
+ return false;
+ } break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_nop
- // OPERANDS: none
- // DESCRIPTION: A place holder. It has no effect on the location stack
- // or any of its values.
- //----------------------------------------------------------------------
- case DW_OP_nop:
- break;
+ case DW_OP_fbreg:
+ if (exe_ctx) {
+ if (frame) {
+ Scalar value;
+ if (frame->GetFrameBaseValue(value, error_ptr)) {
+ int64_t fbreg_offset = opcodes.GetSLEB128(&offset);
+ value += fbreg_offset;
+ stack.push_back(value);
+ stack.back().SetValueType(Value::eValueTypeLoadAddress);
+ } else
+ return false;
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Invalid stack frame in context for DW_OP_fbreg opcode.");
+ return false;
+ }
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "NULL execution context for DW_OP_fbreg.\n");
+ return false;
+ }
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_piece
- // OPERANDS: 1
- // ULEB128: byte size of the piece
- // DESCRIPTION: The operand describes the size in bytes of the piece of
- // the object referenced by the DWARF expression whose result is at the
- // top of the stack. If the piece is located in a register, but does not
- // occupy the entire register, the placement of the piece within that
- // register is defined by the ABI.
- //
- // Many compilers store a single variable in sets of registers, or store
- // a variable partially in memory and partially in registers.
- // DW_OP_piece provides a way of describing how large a part of a
- // variable a particular DWARF expression refers to.
- //----------------------------------------------------------------------
- case DW_OP_piece:
- {
- const uint64_t piece_byte_size = opcodes.GetULEB128(&offset);
-
- if (piece_byte_size > 0)
- {
- Value curr_piece;
-
- if (stack.empty())
- {
- // In a multi-piece expression, this means that the current piece is not available.
- // Fill with zeros for now by resizing the data and appending it
- curr_piece.ResizeData(piece_byte_size);
- ::memset (curr_piece.GetBuffer().GetBytes(), 0, piece_byte_size);
- pieces.AppendDataToHostBuffer(curr_piece);
- }
- else
- {
- Error error;
- // Extract the current piece into "curr_piece"
- Value curr_piece_source_value(stack.back());
- stack.pop_back();
-
- const Value::ValueType curr_piece_source_value_type = curr_piece_source_value.GetValueType();
- switch (curr_piece_source_value_type)
- {
- case Value::eValueTypeLoadAddress:
- if (process)
- {
- if (curr_piece.ResizeData(piece_byte_size) == piece_byte_size)
- {
- lldb::addr_t load_addr = curr_piece_source_value.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
- if (process->ReadMemory(load_addr, curr_piece.GetBuffer().GetBytes(), piece_byte_size, error) != piece_byte_size)
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("failed to read memory DW_OP_piece(%" PRIu64 ") from 0x%" PRIx64,
- piece_byte_size,
- load_addr);
- return false;
- }
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("failed to resize the piece memory buffer for DW_OP_piece(%" PRIu64 ")", piece_byte_size);
- return false;
- }
- }
- break;
-
- case Value::eValueTypeFileAddress:
- case Value::eValueTypeHostAddress:
- if (error_ptr)
- {
- lldb::addr_t addr = curr_piece_source_value.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
- error_ptr->SetErrorStringWithFormat ("failed to read memory DW_OP_piece(%" PRIu64 ") from %s address 0x%" PRIx64,
- piece_byte_size,
- curr_piece_source_value.GetValueType() == Value::eValueTypeFileAddress ? "file" : "host",
- addr);
- }
- return false;
-
- case Value::eValueTypeScalar:
- {
- uint32_t bit_size = piece_byte_size * 8;
- uint32_t bit_offset = 0;
- if (!curr_piece_source_value.GetScalar().ExtractBitfield (bit_size, bit_offset))
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat("unable to extract %" PRIu64 " bytes from a %" PRIu64 " byte scalar value.", piece_byte_size, (uint64_t)curr_piece_source_value.GetScalar().GetByteSize());
- return false;
- }
- curr_piece = curr_piece_source_value;
- }
- break;
-
- case Value::eValueTypeVector:
- {
- if (curr_piece_source_value.GetVector().length >= piece_byte_size)
- curr_piece_source_value.GetVector().length = piece_byte_size;
- else
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat("unable to extract %" PRIu64 " bytes from a %" PRIu64 " byte vector value.", piece_byte_size, (uint64_t)curr_piece_source_value.GetVector().length);
- return false;
- }
- }
- break;
-
- }
-
- // Check if this is the first piece?
- if (op_piece_offset == 0)
- {
- // This is the first piece, we should push it back onto the stack so subsequent
- // pieces will be able to access this piece and add to it
- if (pieces.AppendDataToHostBuffer(curr_piece) == 0)
- {
- if (error_ptr)
- error_ptr->SetErrorString("failed to append piece data");
- return false;
- }
- }
- else
- {
- // If this is the second or later piece there should be a value on the stack
- if (pieces.GetBuffer().GetByteSize() != op_piece_offset)
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat ("DW_OP_piece for offset %" PRIu64 " but top of stack is of size %" PRIu64,
- op_piece_offset,
- pieces.GetBuffer().GetByteSize());
- return false;
- }
-
- if (pieces.AppendDataToHostBuffer(curr_piece) == 0)
- {
- if (error_ptr)
- error_ptr->SetErrorString("failed to append piece data");
- return false;
- }
- }
- op_piece_offset += piece_byte_size;
- }
- }
- }
- break;
+ break;
- case DW_OP_bit_piece: // 0x9d ULEB128 bit size, ULEB128 bit offset (DWARF3);
- if (stack.size() < 1)
- {
- if (error_ptr)
- error_ptr->SetErrorString("Expression stack needs at least 1 item for DW_OP_bit_piece.");
- return false;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_nop
+ // OPERANDS: none
+ // DESCRIPTION: A place holder. It has no effect on the location stack
+ // or any of its values.
+ //----------------------------------------------------------------------
+ case DW_OP_nop:
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_piece
+ // OPERANDS: 1
+ // ULEB128: byte size of the piece
+ // DESCRIPTION: The operand describes the size in bytes of the piece of
+ // the object referenced by the DWARF expression whose result is at the
+ // top of the stack. If the piece is located in a register, but does not
+ // occupy the entire register, the placement of the piece within that
+ // register is defined by the ABI.
+ //
+ // Many compilers store a single variable in sets of registers, or store
+ // a variable partially in memory and partially in registers.
+ // DW_OP_piece provides a way of describing how large a part of a
+ // variable a particular DWARF expression refers to.
+ //----------------------------------------------------------------------
+ case DW_OP_piece: {
+ const uint64_t piece_byte_size = opcodes.GetULEB128(&offset);
+
+ if (piece_byte_size > 0) {
+ Value curr_piece;
+
+ if (stack.empty()) {
+ // In a multi-piece expression, this means that the current piece is
+ // not available.
+ // Fill with zeros for now by resizing the data and appending it
+ curr_piece.ResizeData(piece_byte_size);
+ ::memset(curr_piece.GetBuffer().GetBytes(), 0, piece_byte_size);
+ pieces.AppendDataToHostBuffer(curr_piece);
+ } else {
+ Error error;
+ // Extract the current piece into "curr_piece"
+ Value curr_piece_source_value(stack.back());
+ stack.pop_back();
+
+ const Value::ValueType curr_piece_source_value_type =
+ curr_piece_source_value.GetValueType();
+ switch (curr_piece_source_value_type) {
+ case Value::eValueTypeLoadAddress:
+ if (process) {
+ if (curr_piece.ResizeData(piece_byte_size) == piece_byte_size) {
+ lldb::addr_t load_addr =
+ curr_piece_source_value.GetScalar().ULongLong(
+ LLDB_INVALID_ADDRESS);
+ if (process->ReadMemory(
+ load_addr, curr_piece.GetBuffer().GetBytes(),
+ piece_byte_size, error) != piece_byte_size) {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "failed to read memory DW_OP_piece(%" PRIu64
+ ") from 0x%" PRIx64,
+ piece_byte_size, load_addr);
+ return false;
+ }
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "failed to resize the piece memory buffer for "
+ "DW_OP_piece(%" PRIu64 ")",
+ piece_byte_size);
+ return false;
+ }
+ }
+ break;
+
+ case Value::eValueTypeFileAddress:
+ case Value::eValueTypeHostAddress:
+ if (error_ptr) {
+ lldb::addr_t addr = curr_piece_source_value.GetScalar().ULongLong(
+ LLDB_INVALID_ADDRESS);
+ error_ptr->SetErrorStringWithFormat(
+ "failed to read memory DW_OP_piece(%" PRIu64
+ ") from %s address 0x%" PRIx64,
+ piece_byte_size, curr_piece_source_value.GetValueType() ==
+ Value::eValueTypeFileAddress
+ ? "file"
+ : "host",
+ addr);
}
- else
- {
- const uint64_t piece_bit_size = opcodes.GetULEB128(&offset);
- const uint64_t piece_bit_offset = opcodes.GetULEB128(&offset);
- switch (stack.back().GetValueType())
- {
- case Value::eValueTypeScalar:
- {
- if (!stack.back().GetScalar().ExtractBitfield (piece_bit_size, piece_bit_offset))
- {
- if (error_ptr)
- error_ptr->SetErrorStringWithFormat("unable to extract %" PRIu64 " bit value with %" PRIu64 " bit offset from a %" PRIu64 " bit scalar value.",
- piece_bit_size,
- piece_bit_offset,
- (uint64_t)(stack.back().GetScalar().GetByteSize()*8));
- return false;
- }
- }
- break;
-
- case Value::eValueTypeFileAddress:
- case Value::eValueTypeLoadAddress:
- case Value::eValueTypeHostAddress:
- if (error_ptr)
- {
- error_ptr->SetErrorStringWithFormat ("unable to extract DW_OP_bit_piece(bit_size = %" PRIu64 ", bit_offset = %" PRIu64 ") from an addresss value.",
- piece_bit_size,
- piece_bit_offset);
- }
- return false;
-
- case Value::eValueTypeVector:
- if (error_ptr)
- {
- error_ptr->SetErrorStringWithFormat ("unable to extract DW_OP_bit_piece(bit_size = %" PRIu64 ", bit_offset = %" PRIu64 ") from a vector value.",
- piece_bit_size,
- piece_bit_offset);
- }
- return false;
- }
- }
- break;
+ return false;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_push_object_address
- // OPERANDS: none
- // DESCRIPTION: Pushes the address of the object currently being
- // evaluated as part of evaluation of a user presented expression.
- // This object may correspond to an independent variable described by
- // its own DIE or it may be a component of an array, structure, or class
- // whose address has been dynamically determined by an earlier step
- // during user expression evaluation.
- //----------------------------------------------------------------------
- case DW_OP_push_object_address:
- if (object_address_ptr)
- stack.push_back(*object_address_ptr);
- else
- {
- if (error_ptr)
- error_ptr->SetErrorString ("DW_OP_push_object_address used without specifying an object address");
- return false;
+ case Value::eValueTypeScalar: {
+ uint32_t bit_size = piece_byte_size * 8;
+ uint32_t bit_offset = 0;
+ if (!curr_piece_source_value.GetScalar().ExtractBitfield(
+ bit_size, bit_offset)) {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "unable to extract %" PRIu64 " bytes from a %" PRIu64
+ " byte scalar value.",
+ piece_byte_size,
+ (uint64_t)curr_piece_source_value.GetScalar()
+ .GetByteSize());
+ return false;
+ }
+ curr_piece = curr_piece_source_value;
+ } break;
+
+ case Value::eValueTypeVector: {
+ if (curr_piece_source_value.GetVector().length >= piece_byte_size)
+ curr_piece_source_value.GetVector().length = piece_byte_size;
+ else {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "unable to extract %" PRIu64 " bytes from a %" PRIu64
+ " byte vector value.",
+ piece_byte_size,
+ (uint64_t)curr_piece_source_value.GetVector().length);
+ return false;
+ }
+ } break;
+ }
+
+ // Check if this is the first piece?
+ if (op_piece_offset == 0) {
+ // This is the first piece, we should push it back onto the stack so
+ // subsequent
+ // pieces will be able to access this piece and add to it
+ if (pieces.AppendDataToHostBuffer(curr_piece) == 0) {
+ if (error_ptr)
+ error_ptr->SetErrorString("failed to append piece data");
+ return false;
+ }
+ } else {
+ // If this is the second or later piece there should be a value on
+ // the stack
+ if (pieces.GetBuffer().GetByteSize() != op_piece_offset) {
+ if (error_ptr)
+ error_ptr->SetErrorStringWithFormat(
+ "DW_OP_piece for offset %" PRIu64
+ " but top of stack is of size %" PRIu64,
+ op_piece_offset, pieces.GetBuffer().GetByteSize());
+ return false;
+ }
+
+ if (pieces.AppendDataToHostBuffer(curr_piece) == 0) {
+ if (error_ptr)
+ error_ptr->SetErrorString("failed to append piece data");
+ return false;
}
- break;
+ }
+ op_piece_offset += piece_byte_size;
+ }
+ }
+ } break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_call2
- // OPERANDS:
- // uint16_t compile unit relative offset of a DIE
- // DESCRIPTION: Performs subroutine calls during evaluation
- // of a DWARF expression. The operand is the 2-byte unsigned offset
- // of a debugging information entry in the current compilation unit.
- //
- // Operand interpretation is exactly like that for DW_FORM_ref2.
- //
- // This operation transfers control of DWARF expression evaluation
- // to the DW_AT_location attribute of the referenced DIE. If there is
- // no such attribute, then there is no effect. Execution of the DWARF
- // expression of a DW_AT_location attribute may add to and/or remove from
- // values on the stack. Execution returns to the point following the call
- // when the end of the attribute is reached. Values on the stack at the
- // time of the call may be used as parameters by the called expression
- // and values left on the stack by the called expression may be used as
- // return values by prior agreement between the calling and called
- // expressions.
- //----------------------------------------------------------------------
- case DW_OP_call2:
- if (error_ptr)
- error_ptr->SetErrorString ("Unimplemented opcode DW_OP_call2.");
- return false;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_call4
- // OPERANDS: 1
- // uint32_t compile unit relative offset of a DIE
- // DESCRIPTION: Performs a subroutine call during evaluation of a DWARF
- // expression. For DW_OP_call4, the operand is a 4-byte unsigned offset
- // of a debugging information entry in the current compilation unit.
- //
- // Operand interpretation DW_OP_call4 is exactly like that for
- // DW_FORM_ref4.
- //
- // This operation transfers control of DWARF expression evaluation
- // to the DW_AT_location attribute of the referenced DIE. If there is
- // no such attribute, then there is no effect. Execution of the DWARF
- // expression of a DW_AT_location attribute may add to and/or remove from
- // values on the stack. Execution returns to the point following the call
- // when the end of the attribute is reached. Values on the stack at the
- // time of the call may be used as parameters by the called expression
- // and values left on the stack by the called expression may be used as
- // return values by prior agreement between the calling and called
- // expressions.
- //----------------------------------------------------------------------
- case DW_OP_call4:
+ case DW_OP_bit_piece: // 0x9d ULEB128 bit size, ULEB128 bit offset (DWARF3);
+ if (stack.size() < 1) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "Expression stack needs at least 1 item for DW_OP_bit_piece.");
+ return false;
+ } else {
+ const uint64_t piece_bit_size = opcodes.GetULEB128(&offset);
+ const uint64_t piece_bit_offset = opcodes.GetULEB128(&offset);
+ switch (stack.back().GetValueType()) {
+ case Value::eValueTypeScalar: {
+ if (!stack.back().GetScalar().ExtractBitfield(piece_bit_size,
+ piece_bit_offset)) {
if (error_ptr)
- error_ptr->SetErrorString ("Unimplemented opcode DW_OP_call4.");
+ error_ptr->SetErrorStringWithFormat(
+ "unable to extract %" PRIu64 " bit value with %" PRIu64
+ " bit offset from a %" PRIu64 " bit scalar value.",
+ piece_bit_size, piece_bit_offset,
+ (uint64_t)(stack.back().GetScalar().GetByteSize() * 8));
return false;
+ }
+ } break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_stack_value
- // OPERANDS: None
- // DESCRIPTION: Specifies that the object does not exist in memory but
- // rather is a constant value. The value from the top of the stack is
- // the value to be used. This is the actual object value and not the
- // location.
- //----------------------------------------------------------------------
- case DW_OP_stack_value:
- stack.back().SetValueType(Value::eValueTypeScalar);
- break;
+ case Value::eValueTypeFileAddress:
+ case Value::eValueTypeLoadAddress:
+ case Value::eValueTypeHostAddress:
+ if (error_ptr) {
+ error_ptr->SetErrorStringWithFormat(
+ "unable to extract DW_OP_bit_piece(bit_size = %" PRIu64
+ ", bit_offset = %" PRIu64 ") from an addresss value.",
+ piece_bit_size, piece_bit_offset);
+ }
+ return false;
+
+ case Value::eValueTypeVector:
+ if (error_ptr) {
+ error_ptr->SetErrorStringWithFormat(
+ "unable to extract DW_OP_bit_piece(bit_size = %" PRIu64
+ ", bit_offset = %" PRIu64 ") from a vector value.",
+ piece_bit_size, piece_bit_offset);
+ }
+ return false;
+ }
+ }
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_push_object_address
+ // OPERANDS: none
+ // DESCRIPTION: Pushes the address of the object currently being
+ // evaluated as part of evaluation of a user presented expression.
+ // This object may correspond to an independent variable described by
+ // its own DIE or it may be a component of an array, structure, or class
+ // whose address has been dynamically determined by an earlier step
+ // during user expression evaluation.
+ //----------------------------------------------------------------------
+ case DW_OP_push_object_address:
+ if (object_address_ptr)
+ stack.push_back(*object_address_ptr);
+ else {
+ if (error_ptr)
+ error_ptr->SetErrorString("DW_OP_push_object_address used without "
+ "specifying an object address");
+ return false;
+ }
+ break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_call_frame_cfa
- // OPERANDS: None
- // DESCRIPTION: Specifies a DWARF expression that pushes the value of
- // the canonical frame address consistent with the call frame information
- // located in .debug_frame (or in the FDEs of the eh_frame section).
- //----------------------------------------------------------------------
- case DW_OP_call_frame_cfa:
- if (frame)
- {
- // Note that we don't have to parse FDEs because this DWARF expression
- // is commonly evaluated with a valid stack frame.
- StackID id = frame->GetStackID();
- addr_t cfa = id.GetCallFrameAddress();
- if (cfa != LLDB_INVALID_ADDRESS)
- {
- stack.push_back(Scalar(cfa));
- stack.back().SetValueType (Value::eValueTypeLoadAddress);
- }
- else
- if (error_ptr)
- error_ptr->SetErrorString ("Stack frame does not include a canonical frame address for DW_OP_call_frame_cfa opcode.");
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorString ("Invalid stack frame in context for DW_OP_call_frame_cfa opcode.");
- return false;
- }
- break;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_call2
+ // OPERANDS:
+ // uint16_t compile unit relative offset of a DIE
+ // DESCRIPTION: Performs subroutine calls during evaluation
+ // of a DWARF expression. The operand is the 2-byte unsigned offset
+ // of a debugging information entry in the current compilation unit.
+ //
+ // Operand interpretation is exactly like that for DW_FORM_ref2.
+ //
+ // This operation transfers control of DWARF expression evaluation
+ // to the DW_AT_location attribute of the referenced DIE. If there is
+ // no such attribute, then there is no effect. Execution of the DWARF
+ // expression of a DW_AT_location attribute may add to and/or remove from
+ // values on the stack. Execution returns to the point following the call
+ // when the end of the attribute is reached. Values on the stack at the
+ // time of the call may be used as parameters by the called expression
+ // and values left on the stack by the called expression may be used as
+ // return values by prior agreement between the calling and called
+ // expressions.
+ //----------------------------------------------------------------------
+ case DW_OP_call2:
+ if (error_ptr)
+ error_ptr->SetErrorString("Unimplemented opcode DW_OP_call2.");
+ return false;
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_call4
+ // OPERANDS: 1
+ // uint32_t compile unit relative offset of a DIE
+ // DESCRIPTION: Performs a subroutine call during evaluation of a DWARF
+ // expression. For DW_OP_call4, the operand is a 4-byte unsigned offset
+ // of a debugging information entry in the current compilation unit.
+ //
+ // Operand interpretation DW_OP_call4 is exactly like that for
+ // DW_FORM_ref4.
+ //
+ // This operation transfers control of DWARF expression evaluation
+ // to the DW_AT_location attribute of the referenced DIE. If there is
+ // no such attribute, then there is no effect. Execution of the DWARF
+ // expression of a DW_AT_location attribute may add to and/or remove from
+ // values on the stack. Execution returns to the point following the call
+ // when the end of the attribute is reached. Values on the stack at the
+ // time of the call may be used as parameters by the called expression
+ // and values left on the stack by the called expression may be used as
+ // return values by prior agreement between the calling and called
+ // expressions.
+ //----------------------------------------------------------------------
+ case DW_OP_call4:
+ if (error_ptr)
+ error_ptr->SetErrorString("Unimplemented opcode DW_OP_call4.");
+ return false;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_stack_value
+ // OPERANDS: None
+ // DESCRIPTION: Specifies that the object does not exist in memory but
+ // rather is a constant value. The value from the top of the stack is
+ // the value to be used. This is the actual object value and not the
+ // location.
+ //----------------------------------------------------------------------
+ case DW_OP_stack_value:
+ stack.back().SetValueType(Value::eValueTypeScalar);
+ break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_call_frame_cfa
+ // OPERANDS: None
+ // DESCRIPTION: Specifies a DWARF expression that pushes the value of
+ // the canonical frame address consistent with the call frame information
+ // located in .debug_frame (or in the FDEs of the eh_frame section).
+ //----------------------------------------------------------------------
+ case DW_OP_call_frame_cfa:
+ if (frame) {
+ // Note that we don't have to parse FDEs because this DWARF expression
+ // is commonly evaluated with a valid stack frame.
+ StackID id = frame->GetStackID();
+ addr_t cfa = id.GetCallFrameAddress();
+ if (cfa != LLDB_INVALID_ADDRESS) {
+ stack.push_back(Scalar(cfa));
+ stack.back().SetValueType(Value::eValueTypeLoadAddress);
+ } else if (error_ptr)
+ error_ptr->SetErrorString("Stack frame does not include a canonical "
+ "frame address for DW_OP_call_frame_cfa "
+ "opcode.");
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorString("Invalid stack frame in context for "
+ "DW_OP_call_frame_cfa opcode.");
+ return false;
+ }
+ break;
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_form_tls_address (or the old pre-DWARFv3 vendor extension opcode, DW_OP_GNU_push_tls_address)
- // OPERANDS: none
- // DESCRIPTION: Pops a TLS offset from the stack, converts it to
- // an address in the current thread's thread-local storage block,
- // and pushes it on the stack.
- //----------------------------------------------------------------------
- case DW_OP_form_tls_address:
- case DW_OP_GNU_push_tls_address:
- {
- if (stack.size() < 1)
- {
- if (error_ptr)
- {
- if (op == DW_OP_form_tls_address)
- error_ptr->SetErrorString("DW_OP_form_tls_address needs an argument.");
- else
- error_ptr->SetErrorString("DW_OP_GNU_push_tls_address needs an argument.");
- }
- return false;
- }
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_form_tls_address (or the old pre-DWARFv3 vendor extension
+ // opcode, DW_OP_GNU_push_tls_address)
+ // OPERANDS: none
+ // DESCRIPTION: Pops a TLS offset from the stack, converts it to
+ // an address in the current thread's thread-local storage block,
+ // and pushes it on the stack.
+ //----------------------------------------------------------------------
+ case DW_OP_form_tls_address:
+ case DW_OP_GNU_push_tls_address: {
+ if (stack.size() < 1) {
+ if (error_ptr) {
+ if (op == DW_OP_form_tls_address)
+ error_ptr->SetErrorString(
+ "DW_OP_form_tls_address needs an argument.");
+ else
+ error_ptr->SetErrorString(
+ "DW_OP_GNU_push_tls_address needs an argument.");
+ }
+ return false;
+ }
- if (!exe_ctx || !module_sp)
- {
- if (error_ptr)
- error_ptr->SetErrorString("No context to evaluate TLS within.");
- return false;
- }
+ if (!exe_ctx || !module_sp) {
+ if (error_ptr)
+ error_ptr->SetErrorString("No context to evaluate TLS within.");
+ return false;
+ }
- Thread *thread = exe_ctx->GetThreadPtr();
- if (!thread)
- {
- if (error_ptr)
- error_ptr->SetErrorString("No thread to evaluate TLS within.");
- return false;
- }
+ Thread *thread = exe_ctx->GetThreadPtr();
+ if (!thread) {
+ if (error_ptr)
+ error_ptr->SetErrorString("No thread to evaluate TLS within.");
+ return false;
+ }
- // Lookup the TLS block address for this thread and module.
- const addr_t tls_file_addr = stack.back().GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
- const addr_t tls_load_addr = thread->GetThreadLocalData(module_sp, tls_file_addr);
-
- if (tls_load_addr == LLDB_INVALID_ADDRESS)
- {
- if (error_ptr)
- error_ptr->SetErrorString ("No TLS data currently exists for this thread.");
- return false;
- }
+ // Lookup the TLS block address for this thread and module.
+ const addr_t tls_file_addr =
+ stack.back().GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
+ const addr_t tls_load_addr =
+ thread->GetThreadLocalData(module_sp, tls_file_addr);
- stack.back().GetScalar() = tls_load_addr;
- stack.back().SetValueType (Value::eValueTypeLoadAddress);
- }
- break;
-
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_GNU_addr_index
- // OPERANDS: 1
- // ULEB128: index to the .debug_addr section
- // DESCRIPTION: Pushes an address to the stack from the .debug_addr
- // section with the base address specified by the DW_AT_addr_base
- // attribute and the 0 based index is the ULEB128 encoded index.
- //----------------------------------------------------------------------
- case DW_OP_GNU_addr_index:
- {
- if (!dwarf_cu)
- {
- if (error_ptr)
- error_ptr->SetErrorString ("DW_OP_GNU_addr_index found without a compile unit being specified");
- return false;
- }
- uint64_t index = opcodes.GetULEB128(&offset);
- uint32_t index_size = dwarf_cu->GetAddressByteSize();
- dw_offset_t addr_base = dwarf_cu->GetAddrBase();
- lldb::offset_t offset = addr_base + index * index_size;
- uint64_t value = dwarf_cu->GetSymbolFileDWARF()->get_debug_addr_data().GetMaxU64(&offset, index_size);
- stack.push_back(Scalar(value));
- stack.back().SetValueType(Value::eValueTypeFileAddress);
- }
- break;
+ if (tls_load_addr == LLDB_INVALID_ADDRESS) {
+ if (error_ptr)
+ error_ptr->SetErrorString(
+ "No TLS data currently exists for this thread.");
+ return false;
+ }
- //----------------------------------------------------------------------
- // OPCODE: DW_OP_GNU_const_index
- // OPERANDS: 1
- // ULEB128: index to the .debug_addr section
- // DESCRIPTION: Pushes an constant with the size of a machine address to
- // the stack from the .debug_addr section with the base address specified
- // by the DW_AT_addr_base attribute and the 0 based index is the ULEB128
- // encoded index.
- //----------------------------------------------------------------------
- case DW_OP_GNU_const_index:
- {
- if (!dwarf_cu)
- {
- if (error_ptr)
- error_ptr->SetErrorString ("DW_OP_GNU_const_index found without a compile unit being specified");
- return false;
- }
- uint64_t index = opcodes.GetULEB128(&offset);
- uint32_t index_size = dwarf_cu->GetAddressByteSize();
- dw_offset_t addr_base = dwarf_cu->GetAddrBase();
- lldb::offset_t offset = addr_base + index * index_size;
- const DWARFDataExtractor& debug_addr = dwarf_cu->GetSymbolFileDWARF()->get_debug_addr_data();
- switch (index_size)
- {
- case 4:
- stack.push_back(Scalar(debug_addr.GetU32(&offset)));
- break;
- case 8:
- stack.push_back(Scalar(debug_addr.GetU64(&offset)));
- break;
- default:
- assert(false && "Unhandled index size");
- return false;
- }
- }
- break;
+ stack.back().GetScalar() = tls_load_addr;
+ stack.back().SetValueType(Value::eValueTypeLoadAddress);
+ } break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_GNU_addr_index
+ // OPERANDS: 1
+ // ULEB128: index to the .debug_addr section
+ // DESCRIPTION: Pushes an address to the stack from the .debug_addr
+ // section with the base address specified by the DW_AT_addr_base
+ // attribute and the 0 based index is the ULEB128 encoded index.
+ //----------------------------------------------------------------------
+ case DW_OP_GNU_addr_index: {
+ if (!dwarf_cu) {
+ if (error_ptr)
+ error_ptr->SetErrorString("DW_OP_GNU_addr_index found without a "
+ "compile unit being specified");
+ return false;
+ }
+ uint64_t index = opcodes.GetULEB128(&offset);
+ uint32_t index_size = dwarf_cu->GetAddressByteSize();
+ dw_offset_t addr_base = dwarf_cu->GetAddrBase();
+ lldb::offset_t offset = addr_base + index * index_size;
+ uint64_t value =
+ dwarf_cu->GetSymbolFileDWARF()->get_debug_addr_data().GetMaxU64(
+ &offset, index_size);
+ stack.push_back(Scalar(value));
+ stack.back().SetValueType(Value::eValueTypeFileAddress);
+ } break;
+
+ //----------------------------------------------------------------------
+ // OPCODE: DW_OP_GNU_const_index
+ // OPERANDS: 1
+ // ULEB128: index to the .debug_addr section
+ // DESCRIPTION: Pushes an constant with the size of a machine address to
+ // the stack from the .debug_addr section with the base address specified
+ // by the DW_AT_addr_base attribute and the 0 based index is the ULEB128
+ // encoded index.
+ //----------------------------------------------------------------------
+ case DW_OP_GNU_const_index: {
+ if (!dwarf_cu) {
+ if (error_ptr)
+ error_ptr->SetErrorString("DW_OP_GNU_const_index found without a "
+ "compile unit being specified");
+ return false;
+ }
+ uint64_t index = opcodes.GetULEB128(&offset);
+ uint32_t index_size = dwarf_cu->GetAddressByteSize();
+ dw_offset_t addr_base = dwarf_cu->GetAddrBase();
+ lldb::offset_t offset = addr_base + index * index_size;
+ const DWARFDataExtractor &debug_addr =
+ dwarf_cu->GetSymbolFileDWARF()->get_debug_addr_data();
+ switch (index_size) {
+ case 4:
+ stack.push_back(Scalar(debug_addr.GetU32(&offset)));
+ break;
+ case 8:
+ stack.push_back(Scalar(debug_addr.GetU64(&offset)));
+ break;
+ default:
+ assert(false && "Unhandled index size");
+ return false;
+ }
+ } break;
- default:
- if (log)
- log->Printf("Unhandled opcode %s in DWARFExpression.", DW_OP_value_to_name(op));
- break;
- }
- }
+ default:
+ if (log)
+ log->Printf("Unhandled opcode %s in DWARFExpression.",
+ DW_OP_value_to_name(op));
+ break;
+ }
+ }
+
+ if (stack.empty()) {
+ // Nothing on the stack, check if we created a piece value from DW_OP_piece
+ // or DW_OP_bit_piece opcodes
+ if (pieces.GetBuffer().GetByteSize()) {
+ result = pieces;
+ } else {
+ if (error_ptr)
+ error_ptr->SetErrorString("Stack empty after evaluation.");
+ return false;
+ }
+ } else {
+ if (log && log->GetVerbose()) {
+ size_t count = stack.size();
+ log->Printf("Stack after operation has %" PRIu64 " values:",
+ (uint64_t)count);
+ for (size_t i = 0; i < count; ++i) {
+ StreamString new_value;
+ new_value.Printf("[%" PRIu64 "]", (uint64_t)i);
+ stack[i].Dump(&new_value);
+ log->Printf(" %s", new_value.GetData());
+ }
+ }
+ result = stack.back();
+ }
+ return true; // Return true on success
+}
+
+size_t DWARFExpression::LocationListSize(const DWARFCompileUnit *dwarf_cu,
+ const DataExtractor &debug_loc_data,
+ lldb::offset_t offset) {
+ const lldb::offset_t debug_loc_offset = offset;
+ while (debug_loc_data.ValidOffset(offset)) {
+ lldb::addr_t start_addr = LLDB_INVALID_ADDRESS;
+ lldb::addr_t end_addr = LLDB_INVALID_ADDRESS;
+ if (!AddressRangeForLocationListEntry(dwarf_cu, debug_loc_data, &offset,
+ start_addr, end_addr))
+ break;
+
+ if (start_addr == 0 && end_addr == 0)
+ break;
+
+ uint16_t loc_length = debug_loc_data.GetU16(&offset);
+ offset += loc_length;
+ }
+
+ if (offset > debug_loc_offset)
+ return offset - debug_loc_offset;
+ return 0;
+}
+
+bool DWARFExpression::AddressRangeForLocationListEntry(
+ const DWARFCompileUnit *dwarf_cu, const DataExtractor &debug_loc_data,
+ lldb::offset_t *offset_ptr, lldb::addr_t &low_pc, lldb::addr_t &high_pc) {
+ if (!debug_loc_data.ValidOffset(*offset_ptr))
+ return false;
- if (stack.empty())
- {
- // Nothing on the stack, check if we created a piece value from DW_OP_piece or DW_OP_bit_piece opcodes
- if (pieces.GetBuffer().GetByteSize())
- {
- result = pieces;
- }
- else
- {
- if (error_ptr)
- error_ptr->SetErrorString ("Stack empty after evaluation.");
- return false;
- }
+ switch (dwarf_cu->GetSymbolFileDWARF()->GetLocationListFormat()) {
+ case NonLocationList:
+ return false;
+ case RegularLocationList:
+ low_pc = debug_loc_data.GetAddress(offset_ptr);
+ high_pc = debug_loc_data.GetAddress(offset_ptr);
+ return true;
+ case SplitDwarfLocationList:
+ switch (debug_loc_data.GetU8(offset_ptr)) {
+ case DW_LLE_end_of_list_entry:
+ return false;
+ case DW_LLE_start_end_entry: {
+ uint64_t index = debug_loc_data.GetULEB128(offset_ptr);
+ low_pc = ReadAddressFromDebugAddrSection(dwarf_cu, index);
+ index = debug_loc_data.GetULEB128(offset_ptr);
+ high_pc = ReadAddressFromDebugAddrSection(dwarf_cu, index);
+ return true;
+ }
+ case DW_LLE_start_length_entry: {
+ uint64_t index = debug_loc_data.GetULEB128(offset_ptr);
+ low_pc = ReadAddressFromDebugAddrSection(dwarf_cu, index);
+ uint32_t length = debug_loc_data.GetU32(offset_ptr);
+ high_pc = low_pc + length;
+ return true;
}
- else
- {
- if (log && log->GetVerbose())
- {
- size_t count = stack.size();
- log->Printf("Stack after operation has %" PRIu64 " values:", (uint64_t)count);
- for (size_t i=0; i<count; ++i)
- {
- StreamString new_value;
- new_value.Printf("[%" PRIu64 "]", (uint64_t)i);
- stack[i].Dump(&new_value);
- log->Printf(" %s", new_value.GetData());
- }
- }
- result = stack.back();
+ default:
+ // Not supported entry type
+ return false;
}
- return true; // Return true on success
+ }
+ assert(false && "Not supported location list type");
+ return false;
}
-size_t
-DWARFExpression::LocationListSize(const DWARFCompileUnit* dwarf_cu,
- const DataExtractor& debug_loc_data,
- lldb::offset_t offset)
-{
- const lldb::offset_t debug_loc_offset = offset;
- while (debug_loc_data.ValidOffset(offset))
- {
- lldb::addr_t start_addr = LLDB_INVALID_ADDRESS;
- lldb::addr_t end_addr = LLDB_INVALID_ADDRESS;
- if (!AddressRangeForLocationListEntry(dwarf_cu, debug_loc_data, &offset, start_addr, end_addr))
- break;
+static bool print_dwarf_exp_op(Stream &s, const DataExtractor &data,
+ lldb::offset_t *offset_ptr, int address_size,
+ int dwarf_ref_size) {
+ uint8_t opcode = data.GetU8(offset_ptr);
+ DRC_class opcode_class;
+ uint64_t uint;
+ int64_t sint;
- if (start_addr == 0 && end_addr == 0)
- break;
+ int size;
- uint16_t loc_length = debug_loc_data.GetU16(&offset);
- offset += loc_length;
- }
+ opcode_class = DW_OP_value_to_class(opcode) & (~DRC_DWARFv3);
- if (offset > debug_loc_offset)
- return offset - debug_loc_offset;
- return 0;
-}
+ s.Printf("%s ", DW_OP_value_to_name(opcode));
-bool
-DWARFExpression::AddressRangeForLocationListEntry(const DWARFCompileUnit* dwarf_cu,
- const DataExtractor& debug_loc_data,
- lldb::offset_t* offset_ptr,
- lldb::addr_t& low_pc,
- lldb::addr_t& high_pc)
-{
- if (!debug_loc_data.ValidOffset(*offset_ptr))
- return false;
+ /* Does this take zero parameters? If so we can shortcut this function. */
+ if (opcode_class == DRC_ZEROOPERANDS)
+ return true;
- switch (dwarf_cu->GetSymbolFileDWARF()->GetLocationListFormat())
- {
- case NonLocationList:
- return false;
- case RegularLocationList:
- low_pc = debug_loc_data.GetAddress(offset_ptr);
- high_pc = debug_loc_data.GetAddress(offset_ptr);
- return true;
- case SplitDwarfLocationList:
- switch (debug_loc_data.GetU8(offset_ptr))
- {
- case DW_LLE_end_of_list_entry:
- return false;
- case DW_LLE_start_end_entry:
- {
- uint64_t index = debug_loc_data.GetULEB128(offset_ptr);
- low_pc = ReadAddressFromDebugAddrSection(dwarf_cu, index);
- index = debug_loc_data.GetULEB128(offset_ptr);
- high_pc = ReadAddressFromDebugAddrSection(dwarf_cu, index);
- return true;
- }
- case DW_LLE_start_length_entry:
- {
- uint64_t index = debug_loc_data.GetULEB128(offset_ptr);
- low_pc = ReadAddressFromDebugAddrSection(dwarf_cu, index);
- uint32_t length = debug_loc_data.GetU32(offset_ptr);
- high_pc = low_pc + length;
- return true;
- }
- default:
- // Not supported entry type
- return false;
- }
- }
- assert (false && "Not supported location list type");
+ if (opcode_class == DRC_TWOOPERANDS && opcode == DW_OP_bregx) {
+ uint = data.GetULEB128(offset_ptr);
+ sint = data.GetSLEB128(offset_ptr);
+ s.Printf("%" PRIu64 " %" PRIi64, uint, sint);
+ return true;
+ }
+ if (opcode_class != DRC_ONEOPERAND) {
+ s.Printf("UNKNOWN OP %u", opcode);
return false;
-}
+ }
-static bool
-print_dwarf_exp_op (Stream &s,
- const DataExtractor& data,
- lldb::offset_t *offset_ptr,
- int address_size,
- int dwarf_ref_size)
-{
- uint8_t opcode = data.GetU8(offset_ptr);
- DRC_class opcode_class;
- uint64_t uint;
- int64_t sint;
+ switch (opcode) {
+ case DW_OP_addr:
+ size = address_size;
+ break;
+ case DW_OP_const1u:
+ size = 1;
+ break;
+ case DW_OP_const1s:
+ size = -1;
+ break;
+ case DW_OP_const2u:
+ size = 2;
+ break;
+ case DW_OP_const2s:
+ size = -2;
+ break;
+ case DW_OP_const4u:
+ size = 4;
+ break;
+ case DW_OP_const4s:
+ size = -4;
+ break;
+ case DW_OP_const8u:
+ size = 8;
+ break;
+ case DW_OP_const8s:
+ size = -8;
+ break;
+ case DW_OP_constu:
+ size = 128;
+ break;
+ case DW_OP_consts:
+ size = -128;
+ break;
+ case DW_OP_fbreg:
+ size = -128;
+ break;
+ case DW_OP_breg0:
+ case DW_OP_breg1:
+ case DW_OP_breg2:
+ case DW_OP_breg3:
+ case DW_OP_breg4:
+ case DW_OP_breg5:
+ case DW_OP_breg6:
+ case DW_OP_breg7:
+ case DW_OP_breg8:
+ case DW_OP_breg9:
+ case DW_OP_breg10:
+ case DW_OP_breg11:
+ case DW_OP_breg12:
+ case DW_OP_breg13:
+ case DW_OP_breg14:
+ case DW_OP_breg15:
+ case DW_OP_breg16:
+ case DW_OP_breg17:
+ case DW_OP_breg18:
+ case DW_OP_breg19:
+ case DW_OP_breg20:
+ case DW_OP_breg21:
+ case DW_OP_breg22:
+ case DW_OP_breg23:
+ case DW_OP_breg24:
+ case DW_OP_breg25:
+ case DW_OP_breg26:
+ case DW_OP_breg27:
+ case DW_OP_breg28:
+ case DW_OP_breg29:
+ case DW_OP_breg30:
+ case DW_OP_breg31:
+ size = -128;
+ break;
+ case DW_OP_pick:
+ case DW_OP_deref_size:
+ case DW_OP_xderef_size:
+ size = 1;
+ break;
+ case DW_OP_skip:
+ case DW_OP_bra:
+ size = -2;
+ break;
+ case DW_OP_call2:
+ size = 2;
+ break;
+ case DW_OP_call4:
+ size = 4;
+ break;
+ case DW_OP_call_ref:
+ size = dwarf_ref_size;
+ break;
+ case DW_OP_piece:
+ case DW_OP_plus_uconst:
+ case DW_OP_regx:
+ case DW_OP_GNU_addr_index:
+ case DW_OP_GNU_const_index:
+ size = 128;
+ break;
+ default:
+ s.Printf("UNKNOWN ONE-OPERAND OPCODE, #%u", opcode);
+ return true;
+ }
- int size;
+ switch (size) {
+ case -1:
+ sint = (int8_t)data.GetU8(offset_ptr);
+ s.Printf("%+" PRIi64, sint);
+ break;
+ case -2:
+ sint = (int16_t)data.GetU16(offset_ptr);
+ s.Printf("%+" PRIi64, sint);
+ break;
+ case -4:
+ sint = (int32_t)data.GetU32(offset_ptr);
+ s.Printf("%+" PRIi64, sint);
+ break;
+ case -8:
+ sint = (int64_t)data.GetU64(offset_ptr);
+ s.Printf("%+" PRIi64, sint);
+ break;
+ case -128:
+ sint = data.GetSLEB128(offset_ptr);
+ s.Printf("%+" PRIi64, sint);
+ break;
+ case 1:
+ uint = data.GetU8(offset_ptr);
+ s.Printf("0x%2.2" PRIx64, uint);
+ break;
+ case 2:
+ uint = data.GetU16(offset_ptr);
+ s.Printf("0x%4.4" PRIx64, uint);
+ break;
+ case 4:
+ uint = data.GetU32(offset_ptr);
+ s.Printf("0x%8.8" PRIx64, uint);
+ break;
+ case 8:
+ uint = data.GetU64(offset_ptr);
+ s.Printf("0x%16.16" PRIx64, uint);
+ break;
+ case 128:
+ uint = data.GetULEB128(offset_ptr);
+ s.Printf("0x%" PRIx64, uint);
+ break;
+ }
+
+ return false;
+}
+
+bool DWARFExpression::PrintDWARFExpression(Stream &s, const DataExtractor &data,
+ int address_size, int dwarf_ref_size,
+ bool location_expression) {
+ int op_count = 0;
+ lldb::offset_t offset = 0;
+ while (data.ValidOffset(offset)) {
+ if (location_expression && op_count > 0)
+ return false;
+ if (op_count > 0)
+ s.PutCString(", ");
+ if (!print_dwarf_exp_op(s, data, &offset, address_size, dwarf_ref_size))
+ return false;
+ op_count++;
+ }
+
+ return true;
+}
+
+void DWARFExpression::PrintDWARFLocationList(
+ Stream &s, const DWARFCompileUnit *cu, const DataExtractor &debug_loc_data,
+ lldb::offset_t offset) {
+ uint64_t start_addr, end_addr;
+ uint32_t addr_size = DWARFCompileUnit::GetAddressByteSize(cu);
+ s.SetAddressByteSize(DWARFCompileUnit::GetAddressByteSize(cu));
+ dw_addr_t base_addr = cu ? cu->GetBaseAddress() : 0;
+ while (debug_loc_data.ValidOffset(offset)) {
+ start_addr = debug_loc_data.GetMaxU64(&offset, addr_size);
+ end_addr = debug_loc_data.GetMaxU64(&offset, addr_size);
+
+ if (start_addr == 0 && end_addr == 0)
+ break;
+
+ s.PutCString("\n ");
+ s.Indent();
+ if (cu)
+ s.AddressRange(start_addr + base_addr, end_addr + base_addr,
+ cu->GetAddressByteSize(), NULL, ": ");
+ uint32_t loc_length = debug_loc_data.GetU16(&offset);
+
+ DataExtractor locationData(debug_loc_data, offset, loc_length);
+ PrintDWARFExpression(s, locationData, addr_size, 4, false);
+ offset += loc_length;
+ }
+}
+
+bool DWARFExpression::GetOpAndEndOffsets(StackFrame &frame,
+ lldb::offset_t &op_offset,
+ lldb::offset_t &end_offset) {
+ SymbolContext sc = frame.GetSymbolContext(eSymbolContextFunction);
+ if (!sc.function) {
+ return false;
+ }
- opcode_class = DW_OP_value_to_class (opcode) & (~DRC_DWARFv3);
+ addr_t loclist_base_file_addr =
+ sc.function->GetAddressRange().GetBaseAddress().GetFileAddress();
+ if (loclist_base_file_addr == LLDB_INVALID_ADDRESS) {
+ return false;
+ }
- s.Printf("%s ", DW_OP_value_to_name (opcode));
+ addr_t pc_file_addr = frame.GetFrameCodeAddress().GetFileAddress();
+ lldb::offset_t opcodes_offset, opcodes_length;
+ if (!GetLocation(loclist_base_file_addr, pc_file_addr, opcodes_offset,
+ opcodes_length)) {
+ return false;
+ }
- /* Does this take zero parameters? If so we can shortcut this function. */
- if (opcode_class == DRC_ZEROOPERANDS)
- return true;
+ if (opcodes_length == 0) {
+ return false;
+ }
- if (opcode_class == DRC_TWOOPERANDS && opcode == DW_OP_bregx)
- {
- uint = data.GetULEB128(offset_ptr);
- sint = data.GetSLEB128(offset_ptr);
- s.Printf("%" PRIu64 " %" PRIi64, uint, sint);
- return true;
- }
- if (opcode_class != DRC_ONEOPERAND)
- {
- s.Printf("UNKNOWN OP %u", opcode);
- return false;
- }
+ op_offset = opcodes_offset;
+ end_offset = opcodes_offset + opcodes_length;
+ return true;
+}
- switch (opcode)
- {
- case DW_OP_addr: size = address_size; break;
- case DW_OP_const1u: size = 1; break;
- case DW_OP_const1s: size = -1; break;
- case DW_OP_const2u: size = 2; break;
- case DW_OP_const2s: size = -2; break;
- case DW_OP_const4u: size = 4; break;
- case DW_OP_const4s: size = -4; break;
- case DW_OP_const8u: size = 8; break;
- case DW_OP_const8s: size = -8; break;
- case DW_OP_constu: size = 128; break;
- case DW_OP_consts: size = -128; break;
- case DW_OP_fbreg: size = -128; break;
- case DW_OP_breg0:
- case DW_OP_breg1:
- case DW_OP_breg2:
- case DW_OP_breg3:
- case DW_OP_breg4:
- case DW_OP_breg5:
- case DW_OP_breg6:
- case DW_OP_breg7:
- case DW_OP_breg8:
- case DW_OP_breg9:
- case DW_OP_breg10:
- case DW_OP_breg11:
- case DW_OP_breg12:
- case DW_OP_breg13:
- case DW_OP_breg14:
- case DW_OP_breg15:
- case DW_OP_breg16:
- case DW_OP_breg17:
- case DW_OP_breg18:
- case DW_OP_breg19:
- case DW_OP_breg20:
- case DW_OP_breg21:
- case DW_OP_breg22:
- case DW_OP_breg23:
- case DW_OP_breg24:
- case DW_OP_breg25:
- case DW_OP_breg26:
- case DW_OP_breg27:
- case DW_OP_breg28:
- case DW_OP_breg29:
- case DW_OP_breg30:
- case DW_OP_breg31:
- size = -128; break;
- case DW_OP_pick:
- case DW_OP_deref_size:
- case DW_OP_xderef_size:
- size = 1; break;
- case DW_OP_skip:
- case DW_OP_bra:
- size = -2; break;
- case DW_OP_call2:
- size = 2; break;
- case DW_OP_call4:
- size = 4; break;
- case DW_OP_call_ref:
- size = dwarf_ref_size; break;
- case DW_OP_piece:
- case DW_OP_plus_uconst:
- case DW_OP_regx:
- case DW_OP_GNU_addr_index:
- case DW_OP_GNU_const_index:
- size = 128; break;
- default:
- s.Printf("UNKNOWN ONE-OPERAND OPCODE, #%u", opcode);
- return true;
- }
+bool DWARFExpression::IsRegister(StackFrame &frame,
+ const RegisterInfo *®ister_info) {
+ lldb::offset_t op_offset;
+ lldb::offset_t end_offset;
+ if (!GetOpAndEndOffsets(frame, op_offset, end_offset)) {
+ return false;
+ }
- switch (size)
- {
- case -1: sint = (int8_t) data.GetU8(offset_ptr); s.Printf("%+" PRIi64, sint); break;
- case -2: sint = (int16_t) data.GetU16(offset_ptr); s.Printf("%+" PRIi64, sint); break;
- case -4: sint = (int32_t) data.GetU32(offset_ptr); s.Printf("%+" PRIi64, sint); break;
- case -8: sint = (int64_t) data.GetU64(offset_ptr); s.Printf("%+" PRIi64, sint); break;
- case -128: sint = data.GetSLEB128(offset_ptr); s.Printf("%+" PRIi64, sint); break;
- case 1: uint = data.GetU8(offset_ptr); s.Printf("0x%2.2" PRIx64, uint); break;
- case 2: uint = data.GetU16(offset_ptr); s.Printf("0x%4.4" PRIx64, uint); break;
- case 4: uint = data.GetU32(offset_ptr); s.Printf("0x%8.8" PRIx64, uint); break;
- case 8: uint = data.GetU64(offset_ptr); s.Printf("0x%16.16" PRIx64, uint); break;
- case 128: uint = data.GetULEB128(offset_ptr); s.Printf("0x%" PRIx64, uint); break;
- }
+ if (!m_data.ValidOffset(op_offset) || op_offset >= end_offset) {
+ return false;
+ }
+ RegisterContextSP reg_ctx_sp = frame.GetRegisterContext();
+ if (!reg_ctx_sp) {
return false;
-}
+ }
-bool
-DWARFExpression::PrintDWARFExpression(Stream &s,
- const DataExtractor& data,
- int address_size,
- int dwarf_ref_size,
- bool location_expression)
-{
- int op_count = 0;
- lldb::offset_t offset = 0;
- while (data.ValidOffset(offset))
- {
- if (location_expression && op_count > 0)
- return false;
- if (op_count > 0)
- s.PutCString(", ");
- if (!print_dwarf_exp_op (s, data, &offset, address_size, dwarf_ref_size))
- return false;
- op_count++;
- }
+ DataExtractor opcodes = m_data;
+ uint8_t opcode = opcodes.GetU8(&op_offset);
- return true;
+ if (opcode >= DW_OP_reg0 && opcode <= DW_OP_breg31) {
+ register_info =
+ reg_ctx_sp->GetRegisterInfo(m_reg_kind, opcode - DW_OP_reg0);
+ return register_info != nullptr;
+ }
+ switch (opcode) {
+ default:
+ return false;
+ case DW_OP_regx: {
+ uint32_t reg_num = m_data.GetULEB128(&op_offset);
+ register_info = reg_ctx_sp->GetRegisterInfo(m_reg_kind, reg_num);
+ return register_info != nullptr;
+ }
+ }
}
-void
-DWARFExpression::PrintDWARFLocationList(Stream &s,
- const DWARFCompileUnit* cu,
- const DataExtractor& debug_loc_data,
- lldb::offset_t offset)
-{
- uint64_t start_addr, end_addr;
- uint32_t addr_size = DWARFCompileUnit::GetAddressByteSize(cu);
- s.SetAddressByteSize(DWARFCompileUnit::GetAddressByteSize(cu));
- dw_addr_t base_addr = cu ? cu->GetBaseAddress() : 0;
- while (debug_loc_data.ValidOffset(offset))
- {
- start_addr = debug_loc_data.GetMaxU64(&offset,addr_size);
- end_addr = debug_loc_data.GetMaxU64(&offset,addr_size);
+bool DWARFExpression::IsDereferenceOfRegister(
+ StackFrame &frame, const RegisterInfo *®ister_info, int64_t &offset) {
+ lldb::offset_t op_offset;
+ lldb::offset_t end_offset;
+ if (!GetOpAndEndOffsets(frame, op_offset, end_offset)) {
+ return false;
+ }
- if (start_addr == 0 && end_addr == 0)
- break;
+ if (!m_data.ValidOffset(op_offset) || op_offset >= end_offset) {
+ return false;
+ }
- s.PutCString("\n ");
- s.Indent();
- if (cu)
- s.AddressRange (start_addr + base_addr,
- end_addr + base_addr,
- cu->GetAddressByteSize(),
- NULL,
- ": ");
- uint32_t loc_length = debug_loc_data.GetU16(&offset);
-
- DataExtractor locationData(debug_loc_data, offset, loc_length);
- PrintDWARFExpression (s, locationData, addr_size, 4, false);
- offset += loc_length;
- }
-}
+ RegisterContextSP reg_ctx_sp = frame.GetRegisterContext();
+ if (!reg_ctx_sp) {
+ return false;
+ }
-bool
-DWARFExpression::GetOpAndEndOffsets(StackFrame &frame, lldb::offset_t &op_offset, lldb::offset_t &end_offset)
-{
- SymbolContext sc = frame.GetSymbolContext(eSymbolContextFunction);
- if (!sc.function)
- {
- return false;
- }
+ DataExtractor opcodes = m_data;
+ uint8_t opcode = opcodes.GetU8(&op_offset);
- addr_t loclist_base_file_addr = sc.function->GetAddressRange().GetBaseAddress().GetFileAddress();
- if (loclist_base_file_addr == LLDB_INVALID_ADDRESS)
- {
- return false;
- }
-
- addr_t pc_file_addr = frame.GetFrameCodeAddress().GetFileAddress();
- lldb::offset_t opcodes_offset, opcodes_length;
- if (!GetLocation(loclist_base_file_addr, pc_file_addr, opcodes_offset, opcodes_length))
- {
- return false;
- }
-
- if (opcodes_length == 0)
- {
- return false;
+ switch (opcode) {
+ default:
+ return false;
+ case DW_OP_bregx: {
+ uint32_t reg_num = static_cast<uint32_t>(opcodes.GetULEB128(&op_offset));
+ int64_t breg_offset = opcodes.GetSLEB128(&op_offset);
+
+ const RegisterInfo *reg_info =
+ reg_ctx_sp->GetRegisterInfo(m_reg_kind, reg_num);
+ if (!reg_info) {
+ return false;
}
-
- op_offset = opcodes_offset;
- end_offset = opcodes_offset + opcodes_length;
+
+ register_info = reg_info;
+ offset = breg_offset;
return true;
-}
+ }
+ case DW_OP_fbreg: {
+ int64_t fbreg_offset = opcodes.GetSLEB128(&op_offset);
-bool
-DWARFExpression::IsRegister(StackFrame &frame,
- const RegisterInfo *®ister_info)
-{
- lldb::offset_t op_offset;
- lldb::offset_t end_offset;
- if (!GetOpAndEndOffsets(frame, op_offset, end_offset))
- {
- return false;
- }
+ DWARFExpression *dwarf_expression = frame.GetFrameBaseExpression(nullptr);
- if (!m_data.ValidOffset(op_offset) || op_offset >= end_offset)
- {
- return false;
- }
-
- RegisterContextSP reg_ctx_sp = frame.GetRegisterContext();
- if (!reg_ctx_sp)
- {
- return false;
- }
-
- DataExtractor opcodes = m_data;
- uint8_t opcode = opcodes.GetU8(&op_offset);
-
- if (opcode >= DW_OP_reg0 && opcode <= DW_OP_breg31)
- {
- register_info = reg_ctx_sp->GetRegisterInfo(m_reg_kind, opcode - DW_OP_reg0);
- return register_info != nullptr;
+ if (!dwarf_expression) {
+ return false;
}
- switch (opcode)
- {
- default:
- return false;
- case DW_OP_regx:
- {
- uint32_t reg_num = m_data.GetULEB128(&op_offset);
- register_info = reg_ctx_sp->GetRegisterInfo(m_reg_kind, reg_num);
- return register_info != nullptr;
- }
- }
-}
-bool
-DWARFExpression::IsDereferenceOfRegister(StackFrame &frame,
- const RegisterInfo *®ister_info,
- int64_t &offset)
-{
- lldb::offset_t op_offset;
- lldb::offset_t end_offset;
- if (!GetOpAndEndOffsets(frame, op_offset, end_offset))
- {
- return false;
- }
-
- if (!m_data.ValidOffset(op_offset) || op_offset >= end_offset)
- {
- return false;
- }
-
- RegisterContextSP reg_ctx_sp = frame.GetRegisterContext();
- if (!reg_ctx_sp)
- {
- return false;
- }
-
- DataExtractor opcodes = m_data;
- uint8_t opcode = opcodes.GetU8(&op_offset);
+ const RegisterInfo *fbr_info;
- switch (opcode)
- {
- default:
- return false;
- case DW_OP_bregx:
- {
- uint32_t reg_num = static_cast<uint32_t>(opcodes.GetULEB128(&op_offset));
- int64_t breg_offset = opcodes.GetSLEB128(&op_offset);
-
- const RegisterInfo *reg_info = reg_ctx_sp->GetRegisterInfo(m_reg_kind, reg_num);
- if (!reg_info)
- {
- return false;
- }
-
- register_info = reg_info;
- offset = breg_offset;
- return true;
- }
- case DW_OP_fbreg:
- {
- int64_t fbreg_offset = opcodes.GetSLEB128(&op_offset);
-
- DWARFExpression *dwarf_expression = frame.GetFrameBaseExpression(nullptr);
-
- if (!dwarf_expression)
- {
- return false;
- }
-
- const RegisterInfo *fbr_info;
-
- if (!dwarf_expression->IsRegister(frame, fbr_info))
- {
- return false;
- }
-
- register_info = fbr_info;
- offset = fbreg_offset;
- return true;
- }
+ if (!dwarf_expression->IsRegister(frame, fbr_info)) {
+ return false;
}
-}
+ register_info = fbr_info;
+ offset = fbreg_offset;
+ return true;
+ }
+ }
+}
Modified: lldb/trunk/source/Expression/DiagnosticManager.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/DiagnosticManager.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/DiagnosticManager.cpp (original)
+++ lldb/trunk/source/Expression/DiagnosticManager.cpp Tue Sep 6 15:57:50 2016
@@ -16,76 +16,66 @@
using namespace lldb_private;
-void
-DiagnosticManager::Dump(Log *log)
-{
- if (!log)
- return;
-
- std::string str = GetString();
-
- // GetString() puts a separator after each diagnostic.
- // We want to remove the last '\n' because log->PutCString will add one for us.
-
- if (str.size() && str.back() == '\n')
- {
- str.pop_back();
- }
+void DiagnosticManager::Dump(Log *log) {
+ if (!log)
+ return;
- log->PutCString(str.c_str());
+ std::string str = GetString();
+
+ // GetString() puts a separator after each diagnostic.
+ // We want to remove the last '\n' because log->PutCString will add one for
+ // us.
+
+ if (str.size() && str.back() == '\n') {
+ str.pop_back();
+ }
+
+ log->PutCString(str.c_str());
}
-static const char *
-StringForSeverity(DiagnosticSeverity severity)
-{
- switch (severity)
- {
- // this should be exhaustive
- case lldb_private::eDiagnosticSeverityError:
- return "error: ";
- case lldb_private::eDiagnosticSeverityWarning:
- return "warning: ";
- case lldb_private::eDiagnosticSeverityRemark:
- return "";
- }
- llvm_unreachable("switch needs another case for DiagnosticSeverity enum");
+static const char *StringForSeverity(DiagnosticSeverity severity) {
+ switch (severity) {
+ // this should be exhaustive
+ case lldb_private::eDiagnosticSeverityError:
+ return "error: ";
+ case lldb_private::eDiagnosticSeverityWarning:
+ return "warning: ";
+ case lldb_private::eDiagnosticSeverityRemark:
+ return "";
+ }
+ llvm_unreachable("switch needs another case for DiagnosticSeverity enum");
}
-std::string
-DiagnosticManager::GetString(char separator)
-{
- std::string ret;
-
- for (const Diagnostic *diagnostic : Diagnostics())
- {
- ret.append(StringForSeverity(diagnostic->GetSeverity()));
- ret.append(diagnostic->GetMessage());
- ret.push_back(separator);
- }
+std::string DiagnosticManager::GetString(char separator) {
+ std::string ret;
+
+ for (const Diagnostic *diagnostic : Diagnostics()) {
+ ret.append(StringForSeverity(diagnostic->GetSeverity()));
+ ret.append(diagnostic->GetMessage());
+ ret.push_back(separator);
+ }
- return ret;
+ return ret;
}
-size_t
-DiagnosticManager::Printf(DiagnosticSeverity severity, const char *format, ...)
-{
- StreamString ss;
-
- va_list args;
- va_start(args, format);
- size_t result = ss.PrintfVarArg(format, args);
- va_end(args);
+size_t DiagnosticManager::Printf(DiagnosticSeverity severity,
+ const char *format, ...) {
+ StreamString ss;
+
+ va_list args;
+ va_start(args, format);
+ size_t result = ss.PrintfVarArg(format, args);
+ va_end(args);
- AddDiagnostic(ss.GetData(), severity, eDiagnosticOriginLLDB);
+ AddDiagnostic(ss.GetData(), severity, eDiagnosticOriginLLDB);
- return result;
+ return result;
}
-size_t
-DiagnosticManager::PutCString(DiagnosticSeverity severity, const char *cstr)
-{
- if (!cstr)
- return 0;
- AddDiagnostic(cstr, severity, eDiagnosticOriginLLDB);
- return strlen(cstr);
+size_t DiagnosticManager::PutCString(DiagnosticSeverity severity,
+ const char *cstr) {
+ if (!cstr)
+ return 0;
+ AddDiagnostic(cstr, severity, eDiagnosticOriginLLDB);
+ return strlen(cstr);
}
Modified: lldb/trunk/source/Expression/Expression.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/Expression.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/Expression.cpp (original)
+++ lldb/trunk/source/Expression/Expression.cpp Tue Sep 6 15:57:50 2016
@@ -13,20 +13,17 @@
using namespace lldb_private;
-Expression::Expression (Target &target) :
- m_target_wp (target.shared_from_this()),
- m_jit_start_addr (LLDB_INVALID_ADDRESS),
- m_jit_end_addr (LLDB_INVALID_ADDRESS)
-{
- // Can't make any kind of expression without a target.
- assert (m_target_wp.lock());
+Expression::Expression(Target &target)
+ : m_target_wp(target.shared_from_this()),
+ m_jit_start_addr(LLDB_INVALID_ADDRESS),
+ m_jit_end_addr(LLDB_INVALID_ADDRESS) {
+ // Can't make any kind of expression without a target.
+ assert(m_target_wp.lock());
}
-Expression::Expression (ExecutionContextScope &exe_scope) :
- m_target_wp (exe_scope.CalculateTarget()),
- m_jit_start_addr (LLDB_INVALID_ADDRESS),
- m_jit_end_addr (LLDB_INVALID_ADDRESS)
-{
- assert (m_target_wp.lock());
+Expression::Expression(ExecutionContextScope &exe_scope)
+ : m_target_wp(exe_scope.CalculateTarget()),
+ m_jit_start_addr(LLDB_INVALID_ADDRESS),
+ m_jit_end_addr(LLDB_INVALID_ADDRESS) {
+ assert(m_target_wp.lock());
}
-
Modified: lldb/trunk/source/Expression/ExpressionSourceCode.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/ExpressionSourceCode.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/ExpressionSourceCode.cpp (original)
+++ lldb/trunk/source/Expression/ExpressionSourceCode.cpp Tue Sep 6 15:57:50 2016
@@ -9,12 +9,12 @@
#include "lldb/Expression/ExpressionSourceCode.h"
-#include "lldb/Core/StreamString.h"
#include "Plugins/ExpressionParser/Clang/ClangModulesDeclVendor.h"
#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Symbol/Block.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Symbol/DebugMacros.h"
-#include "lldb/Symbol/Block.h"
#include "lldb/Symbol/TypeSystem.h"
#include "lldb/Symbol/VariableList.h"
#include "lldb/Target/ExecutionContext.h"
@@ -25,8 +25,7 @@
using namespace lldb_private;
-const char *
-ExpressionSourceCode::g_expression_prefix = R"(
+const char *ExpressionSourceCode::g_expression_prefix = R"(
#ifndef NULL
#define NULL (__null)
#endif
@@ -62,366 +61,324 @@ extern "C"
)";
static const char *c_start_marker = " /*LLDB_BODY_START*/\n ";
-static const char *c_end_marker = ";\n /*LLDB_BODY_END*/\n";
+static const char *c_end_marker = ";\n /*LLDB_BODY_END*/\n";
namespace {
-class AddMacroState
-{
- enum State
- {
- CURRENT_FILE_NOT_YET_PUSHED,
- CURRENT_FILE_PUSHED,
- CURRENT_FILE_POPPED
- };
+class AddMacroState {
+ enum State {
+ CURRENT_FILE_NOT_YET_PUSHED,
+ CURRENT_FILE_PUSHED,
+ CURRENT_FILE_POPPED
+ };
public:
- AddMacroState(const FileSpec ¤t_file, const uint32_t current_file_line)
- : m_state(CURRENT_FILE_NOT_YET_PUSHED),
- m_current_file(current_file),
- m_current_file_line(current_file_line)
- { }
-
- void
- StartFile(const FileSpec &file)
- {
- m_file_stack.push_back(file);
- if (file == m_current_file)
- m_state = CURRENT_FILE_PUSHED;
- }
-
- void
- EndFile()
- {
- if (m_file_stack.size() == 0)
- return;
-
- FileSpec old_top = m_file_stack.back();
- m_file_stack.pop_back();
- if (old_top == m_current_file)
- m_state = CURRENT_FILE_POPPED;
- }
+ AddMacroState(const FileSpec ¤t_file, const uint32_t current_file_line)
+ : m_state(CURRENT_FILE_NOT_YET_PUSHED), m_current_file(current_file),
+ m_current_file_line(current_file_line) {}
+
+ void StartFile(const FileSpec &file) {
+ m_file_stack.push_back(file);
+ if (file == m_current_file)
+ m_state = CURRENT_FILE_PUSHED;
+ }
+
+ void EndFile() {
+ if (m_file_stack.size() == 0)
+ return;
+
+ FileSpec old_top = m_file_stack.back();
+ m_file_stack.pop_back();
+ if (old_top == m_current_file)
+ m_state = CURRENT_FILE_POPPED;
+ }
+
+ // An entry is valid if it occurs before the current line in
+ // the current file.
+ bool IsValidEntry(uint32_t line) {
+ switch (m_state) {
+ case CURRENT_FILE_NOT_YET_PUSHED:
+ return true;
+ case CURRENT_FILE_PUSHED:
+ // If we are in file included in the current file,
+ // the entry should be added.
+ if (m_file_stack.back() != m_current_file)
+ return true;
- // An entry is valid if it occurs before the current line in
- // the current file.
- bool
- IsValidEntry(uint32_t line)
- {
- switch (m_state)
- {
- case CURRENT_FILE_NOT_YET_PUSHED:
- return true;
- case CURRENT_FILE_PUSHED:
- // If we are in file included in the current file,
- // the entry should be added.
- if (m_file_stack.back() != m_current_file)
- return true;
-
- if (line >= m_current_file_line)
- return false;
- else
- return true;
- default:
- return false;
- }
+ if (line >= m_current_file_line)
+ return false;
+ else
+ return true;
+ default:
+ return false;
}
+ }
private:
- std::vector<FileSpec> m_file_stack;
- State m_state;
- FileSpec m_current_file;
- uint32_t m_current_file_line;
+ std::vector<FileSpec> m_file_stack;
+ State m_state;
+ FileSpec m_current_file;
+ uint32_t m_current_file_line;
};
} // anonymous namespace
-static void
-AddMacros(const DebugMacros *dm, CompileUnit *comp_unit, AddMacroState &state, StreamString &stream)
-{
- if (dm == nullptr)
+static void AddMacros(const DebugMacros *dm, CompileUnit *comp_unit,
+ AddMacroState &state, StreamString &stream) {
+ if (dm == nullptr)
+ return;
+
+ for (size_t i = 0; i < dm->GetNumMacroEntries(); i++) {
+ const DebugMacroEntry &entry = dm->GetMacroEntryAtIndex(i);
+ uint32_t line;
+
+ switch (entry.GetType()) {
+ case DebugMacroEntry::DEFINE:
+ if (state.IsValidEntry(entry.GetLineNumber()))
+ stream.Printf("#define %s\n", entry.GetMacroString().AsCString());
+ else
return;
-
- for (size_t i = 0; i < dm->GetNumMacroEntries(); i++)
- {
- const DebugMacroEntry &entry = dm->GetMacroEntryAtIndex(i);
- uint32_t line;
-
- switch (entry.GetType())
- {
- case DebugMacroEntry::DEFINE:
- if (state.IsValidEntry(entry.GetLineNumber()))
- stream.Printf("#define %s\n", entry.GetMacroString().AsCString());
- else
- return;
- break;
- case DebugMacroEntry::UNDEF:
- if (state.IsValidEntry(entry.GetLineNumber()))
- stream.Printf("#undef %s\n", entry.GetMacroString().AsCString());
- else
- return;
- break;
- case DebugMacroEntry::START_FILE:
- line = entry.GetLineNumber();
- if (state.IsValidEntry(line))
- state.StartFile(entry.GetFileSpec(comp_unit));
- else
- return;
- break;
- case DebugMacroEntry::END_FILE:
- state.EndFile();
- break;
- case DebugMacroEntry::INDIRECT:
- AddMacros(entry.GetIndirectDebugMacros(), comp_unit, state, stream);
- break;
- default:
- // This is an unknown/invalid entry. Ignore.
- break;
- }
+ break;
+ case DebugMacroEntry::UNDEF:
+ if (state.IsValidEntry(entry.GetLineNumber()))
+ stream.Printf("#undef %s\n", entry.GetMacroString().AsCString());
+ else
+ return;
+ break;
+ case DebugMacroEntry::START_FILE:
+ line = entry.GetLineNumber();
+ if (state.IsValidEntry(line))
+ state.StartFile(entry.GetFileSpec(comp_unit));
+ else
+ return;
+ break;
+ case DebugMacroEntry::END_FILE:
+ state.EndFile();
+ break;
+ case DebugMacroEntry::INDIRECT:
+ AddMacros(entry.GetIndirectDebugMacros(), comp_unit, state, stream);
+ break;
+ default:
+ // This is an unknown/invalid entry. Ignore.
+ break;
}
+ }
}
-static void
-AddLocalVariableDecls(const lldb::VariableListSP &var_list_sp, StreamString &stream)
-{
- for (size_t i = 0; i < var_list_sp->GetSize(); i++)
- {
- lldb::VariableSP var_sp = var_list_sp->GetVariableAtIndex(i);
-
- ConstString var_name = var_sp->GetName();
- if (!var_name || var_name == ConstString("this") || var_name == ConstString(".block_descriptor"))
- continue;
+static void AddLocalVariableDecls(const lldb::VariableListSP &var_list_sp,
+ StreamString &stream) {
+ for (size_t i = 0; i < var_list_sp->GetSize(); i++) {
+ lldb::VariableSP var_sp = var_list_sp->GetVariableAtIndex(i);
+
+ ConstString var_name = var_sp->GetName();
+ if (!var_name || var_name == ConstString("this") ||
+ var_name == ConstString(".block_descriptor"))
+ continue;
- stream.Printf("using $__lldb_local_vars::%s;\n", var_name.AsCString());
- }
+ stream.Printf("using $__lldb_local_vars::%s;\n", var_name.AsCString());
+ }
}
-bool ExpressionSourceCode::GetText (std::string &text, lldb::LanguageType wrapping_language, bool static_method, ExecutionContext &exe_ctx) const
-{
- const char *target_specific_defines = "typedef signed char BOOL;\n";
- std::string module_macros;
-
- Target *target = exe_ctx.GetTargetPtr();
- if (target)
- {
- if (target->GetArchitecture().GetMachine() == llvm::Triple::aarch64)
- {
- target_specific_defines = "typedef bool BOOL;\n";
- }
- if (target->GetArchitecture().GetMachine() == llvm::Triple::x86_64)
- {
- if (lldb::PlatformSP platform_sp = target->GetPlatform())
- {
- static ConstString g_platform_ios_simulator ("ios-simulator");
- if (platform_sp->GetPluginName() == g_platform_ios_simulator)
- {
- target_specific_defines = "typedef bool BOOL;\n";
- }
- }
- }
-
- if (ClangModulesDeclVendor *decl_vendor = target->GetClangModulesDeclVendor())
- {
- ClangPersistentVariables *persistent_vars = llvm::cast<ClangPersistentVariables>(target->GetPersistentExpressionStateForLanguage(lldb::eLanguageTypeC));
- const ClangModulesDeclVendor::ModuleVector &hand_imported_modules = persistent_vars->GetHandLoadedClangModules();
- ClangModulesDeclVendor::ModuleVector modules_for_macros;
-
- for (ClangModulesDeclVendor::ModuleID module : hand_imported_modules)
- {
- modules_for_macros.push_back(module);
- }
-
- if (target->GetEnableAutoImportClangModules())
- {
- if (StackFrame *frame = exe_ctx.GetFramePtr())
- {
- if (Block *block = frame->GetFrameBlock())
- {
- SymbolContext sc;
-
- block->CalculateSymbolContext(&sc);
-
- if (sc.comp_unit)
- {
- StreamString error_stream;
-
- decl_vendor->AddModulesForCompileUnit(*sc.comp_unit, modules_for_macros, error_stream);
- }
- }
- }
- }
-
- decl_vendor->ForEachMacro(modules_for_macros, [&module_macros] (const std::string &expansion) -> bool {
- module_macros.append(expansion);
- module_macros.append("\n");
- return false;
- });
+bool ExpressionSourceCode::GetText(std::string &text,
+ lldb::LanguageType wrapping_language,
+ bool static_method,
+ ExecutionContext &exe_ctx) const {
+ const char *target_specific_defines = "typedef signed char BOOL;\n";
+ std::string module_macros;
+
+ Target *target = exe_ctx.GetTargetPtr();
+ if (target) {
+ if (target->GetArchitecture().GetMachine() == llvm::Triple::aarch64) {
+ target_specific_defines = "typedef bool BOOL;\n";
+ }
+ if (target->GetArchitecture().GetMachine() == llvm::Triple::x86_64) {
+ if (lldb::PlatformSP platform_sp = target->GetPlatform()) {
+ static ConstString g_platform_ios_simulator("ios-simulator");
+ if (platform_sp->GetPluginName() == g_platform_ios_simulator) {
+ target_specific_defines = "typedef bool BOOL;\n";
}
-
+ }
}
- StreamString debug_macros_stream;
- StreamString lldb_local_var_decls;
- if (StackFrame *frame = exe_ctx.GetFramePtr())
- {
- const SymbolContext &sc = frame->GetSymbolContext(
- lldb:: eSymbolContextCompUnit | lldb::eSymbolContextLineEntry);
-
- if (sc.comp_unit && sc.line_entry.IsValid())
- {
- DebugMacros *dm = sc.comp_unit->GetDebugMacros();
- if (dm)
- {
- AddMacroState state(sc.line_entry.file, sc.line_entry.line);
- AddMacros(dm, sc.comp_unit, state, debug_macros_stream);
- }
- }
+ if (ClangModulesDeclVendor *decl_vendor =
+ target->GetClangModulesDeclVendor()) {
+ ClangPersistentVariables *persistent_vars =
+ llvm::cast<ClangPersistentVariables>(
+ target->GetPersistentExpressionStateForLanguage(
+ lldb::eLanguageTypeC));
+ const ClangModulesDeclVendor::ModuleVector &hand_imported_modules =
+ persistent_vars->GetHandLoadedClangModules();
+ ClangModulesDeclVendor::ModuleVector modules_for_macros;
+
+ for (ClangModulesDeclVendor::ModuleID module : hand_imported_modules) {
+ modules_for_macros.push_back(module);
+ }
+
+ if (target->GetEnableAutoImportClangModules()) {
+ if (StackFrame *frame = exe_ctx.GetFramePtr()) {
+ if (Block *block = frame->GetFrameBlock()) {
+ SymbolContext sc;
+
+ block->CalculateSymbolContext(&sc);
- ConstString object_name;
- if (Language::LanguageIsCPlusPlus(frame->GetLanguage()))
- {
- if (target->GetInjectLocalVariables(&exe_ctx))
- {
- lldb::VariableListSP var_list_sp = frame->GetInScopeVariableList(false, true);
- AddLocalVariableDecls(var_list_sp, lldb_local_var_decls);
+ if (sc.comp_unit) {
+ StreamString error_stream;
+
+ decl_vendor->AddModulesForCompileUnit(
+ *sc.comp_unit, modules_for_macros, error_stream);
}
+ }
}
- }
+ }
- if (m_wrap)
- {
- switch (wrapping_language)
- {
- default:
+ decl_vendor->ForEachMacro(
+ modules_for_macros,
+ [&module_macros](const std::string &expansion) -> bool {
+ module_macros.append(expansion);
+ module_macros.append("\n");
return false;
- case lldb::eLanguageTypeC:
- case lldb::eLanguageTypeC_plus_plus:
- case lldb::eLanguageTypeObjC:
- break;
- }
-
- StreamString wrap_stream;
-
- wrap_stream.Printf("%s\n%s\n%s\n%s\n%s\n",
- module_macros.c_str(),
- debug_macros_stream.GetData(),
- g_expression_prefix,
- target_specific_defines,
- m_prefix.c_str());
-
- // First construct a tagged form of the user expression so we can find it later:
- std::string tagged_body;
- switch (wrapping_language)
- {
- default:
- tagged_body = m_body;
- break;
- case lldb::eLanguageTypeC:
- case lldb::eLanguageTypeC_plus_plus:
- case lldb::eLanguageTypeObjC:
- tagged_body.append(c_start_marker);
- tagged_body.append(m_body);
- tagged_body.append(c_end_marker);
- break;
-
- }
- switch (wrapping_language)
- {
- default:
- break;
- case lldb::eLanguageTypeC:
- wrap_stream.Printf("void \n"
- "%s(void *$__lldb_arg) \n"
- "{ \n"
- " %s; \n"
- "%s"
- "} \n",
- m_name.c_str(),
- lldb_local_var_decls.GetData(),
- tagged_body.c_str());
- break;
- case lldb::eLanguageTypeC_plus_plus:
- wrap_stream.Printf("void \n"
- "$__lldb_class::%s(void *$__lldb_arg) \n"
- "{ \n"
- " %s; \n"
- "%s"
- "} \n",
- m_name.c_str(),
- lldb_local_var_decls.GetData(),
- tagged_body.c_str());
- break;
- case lldb::eLanguageTypeObjC:
- if (static_method)
- {
- wrap_stream.Printf("@interface $__lldb_objc_class ($__lldb_category) \n"
- "+(void)%s:(void *)$__lldb_arg; \n"
- "@end \n"
- "@implementation $__lldb_objc_class ($__lldb_category) \n"
- "+(void)%s:(void *)$__lldb_arg \n"
- "{ \n"
- "%s"
- "} \n"
- "@end \n",
- m_name.c_str(),
- m_name.c_str(),
- tagged_body.c_str());
- }
- else
- {
- wrap_stream.Printf("@interface $__lldb_objc_class ($__lldb_category) \n"
- "-(void)%s:(void *)$__lldb_arg; \n"
- "@end \n"
- "@implementation $__lldb_objc_class ($__lldb_category) \n"
- "-(void)%s:(void *)$__lldb_arg \n"
- "{ \n"
- "%s"
- "} \n"
- "@end \n",
- m_name.c_str(),
- m_name.c_str(),
- tagged_body.c_str());
- }
- break;
- }
-
- text = wrap_stream.GetString();
+ });
}
- else
- {
- text.append(m_body);
+ }
+
+ StreamString debug_macros_stream;
+ StreamString lldb_local_var_decls;
+ if (StackFrame *frame = exe_ctx.GetFramePtr()) {
+ const SymbolContext &sc = frame->GetSymbolContext(
+ lldb::eSymbolContextCompUnit | lldb::eSymbolContextLineEntry);
+
+ if (sc.comp_unit && sc.line_entry.IsValid()) {
+ DebugMacros *dm = sc.comp_unit->GetDebugMacros();
+ if (dm) {
+ AddMacroState state(sc.line_entry.file, sc.line_entry.line);
+ AddMacros(dm, sc.comp_unit, state, debug_macros_stream);
+ }
}
- return true;
-}
+ ConstString object_name;
+ if (Language::LanguageIsCPlusPlus(frame->GetLanguage())) {
+ if (target->GetInjectLocalVariables(&exe_ctx)) {
+ lldb::VariableListSP var_list_sp =
+ frame->GetInScopeVariableList(false, true);
+ AddLocalVariableDecls(var_list_sp, lldb_local_var_decls);
+ }
+ }
+ }
-bool
-ExpressionSourceCode::GetOriginalBodyBounds(std::string transformed_text,
- lldb::LanguageType wrapping_language,
- size_t &start_loc,
- size_t &end_loc)
-{
- const char *start_marker;
- const char *end_marker;
-
- switch (wrapping_language)
- {
+ if (m_wrap) {
+ switch (wrapping_language) {
default:
- return false;
+ return false;
case lldb::eLanguageTypeC:
case lldb::eLanguageTypeC_plus_plus:
case lldb::eLanguageTypeObjC:
- start_marker = c_start_marker;
- end_marker = c_end_marker;
- break;
+ break;
}
-
- start_loc = transformed_text.find(start_marker);
- if (start_loc == std::string::npos)
- return false;
- start_loc += strlen(start_marker);
- end_loc = transformed_text.find(end_marker);
- if (end_loc == std::string::npos)
- return false;
- return true;
+
+ StreamString wrap_stream;
+
+ wrap_stream.Printf("%s\n%s\n%s\n%s\n%s\n", module_macros.c_str(),
+ debug_macros_stream.GetData(), g_expression_prefix,
+ target_specific_defines, m_prefix.c_str());
+
+ // First construct a tagged form of the user expression so we can find it
+ // later:
+ std::string tagged_body;
+ switch (wrapping_language) {
+ default:
+ tagged_body = m_body;
+ break;
+ case lldb::eLanguageTypeC:
+ case lldb::eLanguageTypeC_plus_plus:
+ case lldb::eLanguageTypeObjC:
+ tagged_body.append(c_start_marker);
+ tagged_body.append(m_body);
+ tagged_body.append(c_end_marker);
+ break;
+ }
+ switch (wrapping_language) {
+ default:
+ break;
+ case lldb::eLanguageTypeC:
+ wrap_stream.Printf("void \n"
+ "%s(void *$__lldb_arg) \n"
+ "{ \n"
+ " %s; \n"
+ "%s"
+ "} \n",
+ m_name.c_str(), lldb_local_var_decls.GetData(),
+ tagged_body.c_str());
+ break;
+ case lldb::eLanguageTypeC_plus_plus:
+ wrap_stream.Printf("void \n"
+ "$__lldb_class::%s(void *$__lldb_arg) \n"
+ "{ \n"
+ " %s; \n"
+ "%s"
+ "} \n",
+ m_name.c_str(), lldb_local_var_decls.GetData(),
+ tagged_body.c_str());
+ break;
+ case lldb::eLanguageTypeObjC:
+ if (static_method) {
+ wrap_stream.Printf(
+ "@interface $__lldb_objc_class ($__lldb_category) \n"
+ "+(void)%s:(void *)$__lldb_arg; \n"
+ "@end \n"
+ "@implementation $__lldb_objc_class ($__lldb_category) \n"
+ "+(void)%s:(void *)$__lldb_arg \n"
+ "{ \n"
+ "%s"
+ "} \n"
+ "@end \n",
+ m_name.c_str(), m_name.c_str(), tagged_body.c_str());
+ } else {
+ wrap_stream.Printf(
+ "@interface $__lldb_objc_class ($__lldb_category) \n"
+ "-(void)%s:(void *)$__lldb_arg; \n"
+ "@end \n"
+ "@implementation $__lldb_objc_class ($__lldb_category) \n"
+ "-(void)%s:(void *)$__lldb_arg \n"
+ "{ \n"
+ "%s"
+ "} \n"
+ "@end \n",
+ m_name.c_str(), m_name.c_str(), tagged_body.c_str());
+ }
+ break;
+ }
+
+ text = wrap_stream.GetString();
+ } else {
+ text.append(m_body);
+ }
+
+ return true;
}
+bool ExpressionSourceCode::GetOriginalBodyBounds(
+ std::string transformed_text, lldb::LanguageType wrapping_language,
+ size_t &start_loc, size_t &end_loc) {
+ const char *start_marker;
+ const char *end_marker;
+
+ switch (wrapping_language) {
+ default:
+ return false;
+ case lldb::eLanguageTypeC:
+ case lldb::eLanguageTypeC_plus_plus:
+ case lldb::eLanguageTypeObjC:
+ start_marker = c_start_marker;
+ end_marker = c_end_marker;
+ break;
+ }
+
+ start_loc = transformed_text.find(start_marker);
+ if (start_loc == std::string::npos)
+ return false;
+ start_loc += strlen(start_marker);
+ end_loc = transformed_text.find(end_marker);
+ if (end_loc == std::string::npos)
+ return false;
+ return true;
+}
Modified: lldb/trunk/source/Expression/ExpressionVariable.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/ExpressionVariable.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/ExpressionVariable.cpp (original)
+++ lldb/trunk/source/Expression/ExpressionVariable.cpp Tue Sep 6 15:57:50 2016
@@ -7,84 +7,76 @@
//
//===----------------------------------------------------------------------===//
-#include "lldb/Core/Log.h"
#include "lldb/Expression/ExpressionVariable.h"
+#include "lldb/Core/Log.h"
#include "lldb/Expression/IRExecutionUnit.h"
using namespace lldb_private;
-ExpressionVariable::~ExpressionVariable()
-{
-}
+ExpressionVariable::~ExpressionVariable() {}
-uint8_t *
-ExpressionVariable::GetValueBytes()
-{
- const size_t byte_size = m_frozen_sp->GetByteSize();
- if (byte_size > 0)
- {
- if (m_frozen_sp->GetDataExtractor().GetByteSize() < byte_size)
- {
- m_frozen_sp->GetValue().ResizeData(byte_size);
- m_frozen_sp->GetValue().GetData (m_frozen_sp->GetDataExtractor());
- }
- return const_cast<uint8_t *>(m_frozen_sp->GetDataExtractor().GetDataStart());
+uint8_t *ExpressionVariable::GetValueBytes() {
+ const size_t byte_size = m_frozen_sp->GetByteSize();
+ if (byte_size > 0) {
+ if (m_frozen_sp->GetDataExtractor().GetByteSize() < byte_size) {
+ m_frozen_sp->GetValue().ResizeData(byte_size);
+ m_frozen_sp->GetValue().GetData(m_frozen_sp->GetDataExtractor());
}
- return NULL;
+ return const_cast<uint8_t *>(
+ m_frozen_sp->GetDataExtractor().GetDataStart());
+ }
+ return NULL;
}
-PersistentExpressionState::~PersistentExpressionState ()
-{
-}
+PersistentExpressionState::~PersistentExpressionState() {}
-lldb::addr_t
-PersistentExpressionState::LookupSymbol (const ConstString &name)
-{
- SymbolMap::iterator si = m_symbol_map.find(name.GetCString());
-
- if (si != m_symbol_map.end())
- return si->second;
- else
- return LLDB_INVALID_ADDRESS;
-}
+lldb::addr_t PersistentExpressionState::LookupSymbol(const ConstString &name) {
+ SymbolMap::iterator si = m_symbol_map.find(name.GetCString());
+ if (si != m_symbol_map.end())
+ return si->second;
+ else
+ return LLDB_INVALID_ADDRESS;
+}
-void
-PersistentExpressionState::RegisterExecutionUnit (lldb::IRExecutionUnitSP &execution_unit_sp)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- m_execution_units.insert(execution_unit_sp);
-
- if (log)
- log->Printf ("Registering JITted Functions:\n");
-
- for (const IRExecutionUnit::JittedFunction &jitted_function : execution_unit_sp->GetJittedFunctions())
- {
- if (jitted_function.m_external &&
- jitted_function.m_name != execution_unit_sp->GetFunctionName() &&
- jitted_function.m_remote_addr != LLDB_INVALID_ADDRESS)
- {
- m_symbol_map[jitted_function.m_name.GetCString()] = jitted_function.m_remote_addr;
- if (log)
- log->Printf (" Function: %s at 0x%" PRIx64 ".", jitted_function.m_name.GetCString(), jitted_function.m_remote_addr);
- }
+void PersistentExpressionState::RegisterExecutionUnit(
+ lldb::IRExecutionUnitSP &execution_unit_sp) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+
+ m_execution_units.insert(execution_unit_sp);
+
+ if (log)
+ log->Printf("Registering JITted Functions:\n");
+
+ for (const IRExecutionUnit::JittedFunction &jitted_function :
+ execution_unit_sp->GetJittedFunctions()) {
+ if (jitted_function.m_external &&
+ jitted_function.m_name != execution_unit_sp->GetFunctionName() &&
+ jitted_function.m_remote_addr != LLDB_INVALID_ADDRESS) {
+ m_symbol_map[jitted_function.m_name.GetCString()] =
+ jitted_function.m_remote_addr;
+ if (log)
+ log->Printf(" Function: %s at 0x%" PRIx64 ".",
+ jitted_function.m_name.GetCString(),
+ jitted_function.m_remote_addr);
}
-
- if (log)
- log->Printf ("Registering JIIted Symbols:\n");
-
- for (const IRExecutionUnit::JittedGlobalVariable &global_var : execution_unit_sp->GetJittedGlobalVariables())
- {
- if (global_var.m_remote_addr != LLDB_INVALID_ADDRESS)
- {
- // Demangle the name before inserting it, so that lookups by the ConstStr of the demangled name
- // will find the mangled one (needed for looking up metadata pointers.)
- Mangled mangler(global_var.m_name);
- mangler.GetDemangledName(lldb::eLanguageTypeUnknown);
- m_symbol_map[global_var.m_name.GetCString()] = global_var.m_remote_addr;
- if (log)
- log->Printf (" Symbol: %s at 0x%" PRIx64 ".", global_var.m_name.GetCString(), global_var.m_remote_addr);
- }
+ }
+
+ if (log)
+ log->Printf("Registering JIIted Symbols:\n");
+
+ for (const IRExecutionUnit::JittedGlobalVariable &global_var :
+ execution_unit_sp->GetJittedGlobalVariables()) {
+ if (global_var.m_remote_addr != LLDB_INVALID_ADDRESS) {
+ // Demangle the name before inserting it, so that lookups by the ConstStr
+ // of the demangled name
+ // will find the mangled one (needed for looking up metadata pointers.)
+ Mangled mangler(global_var.m_name);
+ mangler.GetDemangledName(lldb::eLanguageTypeUnknown);
+ m_symbol_map[global_var.m_name.GetCString()] = global_var.m_remote_addr;
+ if (log)
+ log->Printf(" Symbol: %s at 0x%" PRIx64 ".",
+ global_var.m_name.GetCString(), global_var.m_remote_addr);
}
+ }
}
Modified: lldb/trunk/source/Expression/FunctionCaller.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/FunctionCaller.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/FunctionCaller.cpp (original)
+++ lldb/trunk/source/Expression/FunctionCaller.cpp Tue Sep 6 15:57:50 2016
@@ -1,4 +1,5 @@
-//===-- FunctionCaller.cpp ---------------------------------------*- C++ -*-===//
+//===-- FunctionCaller.cpp ---------------------------------------*- C++
+//-*-===//
//
// The LLVM Compiler Infrastructure
//
@@ -7,7 +8,6 @@
//
//===----------------------------------------------------------------------===//
-
// C Includes
// C++ Includes
// Other libraries and framework includes
@@ -38,364 +38,358 @@ using namespace lldb_private;
//----------------------------------------------------------------------
// FunctionCaller constructor
//----------------------------------------------------------------------
-FunctionCaller::FunctionCaller
-(
- ExecutionContextScope &exe_scope,
- const CompilerType &return_type,
- const Address& functionAddress,
- const ValueList &arg_value_list,
- const char *name
-) :
- Expression (exe_scope),
- m_execution_unit_sp(),
- m_parser(),
- m_jit_module_wp(),
- m_name (name ? name : "<unknown>"),
- m_function_ptr (NULL),
- m_function_addr (functionAddress),
- m_function_return_type(return_type),
- m_wrapper_function_name ("__lldb_caller_function"),
- m_wrapper_struct_name ("__lldb_caller_struct"),
- m_wrapper_args_addrs (),
- m_arg_values (arg_value_list),
- m_compiled (false),
- m_JITted (false)
-{
- m_jit_process_wp = lldb::ProcessWP(exe_scope.CalculateProcess());
- // Can't make a FunctionCaller without a process.
- assert (m_jit_process_wp.lock());
+FunctionCaller::FunctionCaller(ExecutionContextScope &exe_scope,
+ const CompilerType &return_type,
+ const Address &functionAddress,
+ const ValueList &arg_value_list,
+ const char *name)
+ : Expression(exe_scope), m_execution_unit_sp(), m_parser(),
+ m_jit_module_wp(), m_name(name ? name : "<unknown>"),
+ m_function_ptr(NULL), m_function_addr(functionAddress),
+ m_function_return_type(return_type),
+ m_wrapper_function_name("__lldb_caller_function"),
+ m_wrapper_struct_name("__lldb_caller_struct"), m_wrapper_args_addrs(),
+ m_arg_values(arg_value_list), m_compiled(false), m_JITted(false) {
+ m_jit_process_wp = lldb::ProcessWP(exe_scope.CalculateProcess());
+ // Can't make a FunctionCaller without a process.
+ assert(m_jit_process_wp.lock());
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
-FunctionCaller::~FunctionCaller()
-{
- lldb::ProcessSP process_sp (m_jit_process_wp.lock());
- if (process_sp)
- {
- lldb::ModuleSP jit_module_sp (m_jit_module_wp.lock());
- if (jit_module_sp)
- process_sp->GetTarget().GetImages().Remove(jit_module_sp);
- }
+FunctionCaller::~FunctionCaller() {
+ lldb::ProcessSP process_sp(m_jit_process_wp.lock());
+ if (process_sp) {
+ lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
+ if (jit_module_sp)
+ process_sp->GetTarget().GetImages().Remove(jit_module_sp);
+ }
}
-bool
-FunctionCaller::WriteFunctionWrapper(ExecutionContext &exe_ctx, DiagnosticManager &diagnostic_manager)
-{
- Process *process = exe_ctx.GetProcessPtr();
-
- if (!process)
- return false;
-
- lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
-
- if (process != jit_process_sp.get())
- return false;
-
- if (!m_compiled)
- return false;
-
- if (m_JITted)
- return true;
-
- bool can_interpret = false; // should stay that way
-
- Error jit_error (m_parser->PrepareForExecution (m_jit_start_addr,
- m_jit_end_addr,
- m_execution_unit_sp,
- exe_ctx,
- can_interpret,
- eExecutionPolicyAlways));
-
- if (!jit_error.Success())
- return false;
-
- if (m_parser->GetGenerateDebugInfo())
- {
- lldb::ModuleSP jit_module_sp ( m_execution_unit_sp->GetJITModule());
-
- if (jit_module_sp)
- {
- ConstString const_func_name(FunctionName());
- FileSpec jit_file;
- jit_file.GetFilename() = const_func_name;
- jit_module_sp->SetFileSpecAndObjectName (jit_file, ConstString());
- m_jit_module_wp = jit_module_sp;
- process->GetTarget().GetImages().Append(jit_module_sp);
- }
- }
- if (process && m_jit_start_addr)
- m_jit_process_wp = process->shared_from_this();
-
- m_JITted = true;
+bool FunctionCaller::WriteFunctionWrapper(
+ ExecutionContext &exe_ctx, DiagnosticManager &diagnostic_manager) {
+ Process *process = exe_ctx.GetProcessPtr();
+
+ if (!process)
+ return false;
+ lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
+
+ if (process != jit_process_sp.get())
+ return false;
+
+ if (!m_compiled)
+ return false;
+
+ if (m_JITted)
return true;
+
+ bool can_interpret = false; // should stay that way
+
+ Error jit_error(m_parser->PrepareForExecution(
+ m_jit_start_addr, m_jit_end_addr, m_execution_unit_sp, exe_ctx,
+ can_interpret, eExecutionPolicyAlways));
+
+ if (!jit_error.Success())
+ return false;
+
+ if (m_parser->GetGenerateDebugInfo()) {
+ lldb::ModuleSP jit_module_sp(m_execution_unit_sp->GetJITModule());
+
+ if (jit_module_sp) {
+ ConstString const_func_name(FunctionName());
+ FileSpec jit_file;
+ jit_file.GetFilename() = const_func_name;
+ jit_module_sp->SetFileSpecAndObjectName(jit_file, ConstString());
+ m_jit_module_wp = jit_module_sp;
+ process->GetTarget().GetImages().Append(jit_module_sp);
+ }
+ }
+ if (process && m_jit_start_addr)
+ m_jit_process_wp = process->shared_from_this();
+
+ m_JITted = true;
+
+ return true;
}
-bool
-FunctionCaller::WriteFunctionArguments(ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref,
- DiagnosticManager &diagnostic_manager)
-{
- return WriteFunctionArguments(exe_ctx, args_addr_ref, m_arg_values, diagnostic_manager);
+bool FunctionCaller::WriteFunctionArguments(
+ ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref,
+ DiagnosticManager &diagnostic_manager) {
+ return WriteFunctionArguments(exe_ctx, args_addr_ref, m_arg_values,
+ diagnostic_manager);
}
-// FIXME: Assure that the ValueList we were passed in is consistent with the one that defined this function.
+// FIXME: Assure that the ValueList we were passed in is consistent with the one
+// that defined this function.
-bool
-FunctionCaller::WriteFunctionArguments(ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref, ValueList &arg_values,
- DiagnosticManager &diagnostic_manager)
-{
- // All the information to reconstruct the struct is provided by the
- // StructExtractor.
- if (!m_struct_valid)
- {
- diagnostic_manager.PutCString(
- eDiagnosticSeverityError,
- "Argument information was not correctly parsed, so the function cannot be called.");
- return false;
+bool FunctionCaller::WriteFunctionArguments(
+ ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref,
+ ValueList &arg_values, DiagnosticManager &diagnostic_manager) {
+ // All the information to reconstruct the struct is provided by the
+ // StructExtractor.
+ if (!m_struct_valid) {
+ diagnostic_manager.PutCString(eDiagnosticSeverityError,
+ "Argument information was not correctly "
+ "parsed, so the function cannot be called.");
+ return false;
+ }
+
+ Error error;
+ lldb::ExpressionResults return_value = lldb::eExpressionSetupError;
+
+ Process *process = exe_ctx.GetProcessPtr();
+
+ if (process == NULL)
+ return return_value;
+
+ lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
+
+ if (process != jit_process_sp.get())
+ return false;
+
+ if (args_addr_ref == LLDB_INVALID_ADDRESS) {
+ args_addr_ref = process->AllocateMemory(
+ m_struct_size, lldb::ePermissionsReadable | lldb::ePermissionsWritable,
+ error);
+ if (args_addr_ref == LLDB_INVALID_ADDRESS)
+ return false;
+ m_wrapper_args_addrs.push_back(args_addr_ref);
+ } else {
+ // Make sure this is an address that we've already handed out.
+ if (find(m_wrapper_args_addrs.begin(), m_wrapper_args_addrs.end(),
+ args_addr_ref) == m_wrapper_args_addrs.end()) {
+ return false;
}
+ }
- Error error;
- lldb::ExpressionResults return_value = lldb::eExpressionSetupError;
+ // TODO: verify fun_addr needs to be a callable address
+ Scalar fun_addr(
+ m_function_addr.GetCallableLoadAddress(exe_ctx.GetTargetPtr()));
+ uint64_t first_offset = m_member_offsets[0];
+ process->WriteScalarToMemory(args_addr_ref + first_offset, fun_addr,
+ process->GetAddressByteSize(), error);
- Process *process = exe_ctx.GetProcessPtr();
+ // FIXME: We will need to extend this for Variadic functions.
- if (process == NULL)
- return return_value;
+ Error value_error;
- lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
-
- if (process != jit_process_sp.get())
- return false;
-
- if (args_addr_ref == LLDB_INVALID_ADDRESS)
- {
- args_addr_ref = process->AllocateMemory(m_struct_size, lldb::ePermissionsReadable|lldb::ePermissionsWritable, error);
- if (args_addr_ref == LLDB_INVALID_ADDRESS)
- return false;
- m_wrapper_args_addrs.push_back (args_addr_ref);
- }
- else
- {
- // Make sure this is an address that we've already handed out.
- if (find (m_wrapper_args_addrs.begin(), m_wrapper_args_addrs.end(), args_addr_ref) == m_wrapper_args_addrs.end())
- {
- return false;
- }
- }
+ size_t num_args = arg_values.GetSize();
+ if (num_args != m_arg_values.GetSize()) {
+ diagnostic_manager.Printf(
+ eDiagnosticSeverityError,
+ "Wrong number of arguments - was: %" PRIu64 " should be: %" PRIu64 "",
+ (uint64_t)num_args, (uint64_t)m_arg_values.GetSize());
+ return false;
+ }
- // TODO: verify fun_addr needs to be a callable address
- Scalar fun_addr (m_function_addr.GetCallableLoadAddress(exe_ctx.GetTargetPtr()));
- uint64_t first_offset = m_member_offsets[0];
- process->WriteScalarToMemory(args_addr_ref + first_offset, fun_addr, process->GetAddressByteSize(), error);
-
- // FIXME: We will need to extend this for Variadic functions.
-
- Error value_error;
-
- size_t num_args = arg_values.GetSize();
- if (num_args != m_arg_values.GetSize())
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError,
- "Wrong number of arguments - was: %" PRIu64 " should be: %" PRIu64 "",
- (uint64_t)num_args, (uint64_t)m_arg_values.GetSize());
- return false;
- }
+ for (size_t i = 0; i < num_args; i++) {
+ // FIXME: We should sanity check sizes.
- for (size_t i = 0; i < num_args; i++)
- {
- // FIXME: We should sanity check sizes.
-
- uint64_t offset = m_member_offsets[i+1]; // Clang sizes are in bytes.
- Value *arg_value = arg_values.GetValueAtIndex(i);
-
- // FIXME: For now just do scalars:
-
- // Special case: if it's a pointer, don't do anything (the ABI supports passing cstrings)
-
- if (arg_value->GetValueType() == Value::eValueTypeHostAddress &&
- arg_value->GetContextType() == Value::eContextTypeInvalid &&
- arg_value->GetCompilerType().IsPointerType())
- continue;
-
- const Scalar &arg_scalar = arg_value->ResolveValue(&exe_ctx);
+ uint64_t offset = m_member_offsets[i + 1]; // Clang sizes are in bytes.
+ Value *arg_value = arg_values.GetValueAtIndex(i);
- if (!process->WriteScalarToMemory(args_addr_ref + offset, arg_scalar, arg_scalar.GetByteSize(), error))
- return false;
- }
+ // FIXME: For now just do scalars:
- return true;
-}
+ // Special case: if it's a pointer, don't do anything (the ABI supports
+ // passing cstrings)
-bool
-FunctionCaller::InsertFunction(ExecutionContext &exe_ctx, lldb::addr_t &args_addr_ref,
- DiagnosticManager &diagnostic_manager)
-{
- if (CompileFunction(exe_ctx.GetThreadSP(), diagnostic_manager) != 0)
- return false;
- if (!WriteFunctionWrapper(exe_ctx, diagnostic_manager))
- return false;
- if (!WriteFunctionArguments(exe_ctx, args_addr_ref, diagnostic_manager))
- return false;
-
- Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP));
- if (log)
- log->Printf ("Call Address: 0x%" PRIx64 " Struct Address: 0x%" PRIx64 ".\n", m_jit_start_addr, args_addr_ref);
-
- return true;
-}
+ if (arg_value->GetValueType() == Value::eValueTypeHostAddress &&
+ arg_value->GetContextType() == Value::eContextTypeInvalid &&
+ arg_value->GetCompilerType().IsPointerType())
+ continue;
-lldb::ThreadPlanSP
-FunctionCaller::GetThreadPlanToCallFunction(ExecutionContext &exe_ctx, lldb::addr_t args_addr,
- const EvaluateExpressionOptions &options,
- DiagnosticManager &diagnostic_manager)
-{
- Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
-
- if (log)
- log->Printf("-- [FunctionCaller::GetThreadPlanToCallFunction] Creating thread plan to call function \"%s\" --", m_name.c_str());
-
- // FIXME: Use the errors Stream for better error reporting.
- Thread *thread = exe_ctx.GetThreadPtr();
- if (thread == NULL)
- {
- diagnostic_manager.PutCString(eDiagnosticSeverityError, "Can't call a function without a valid thread.");
- return NULL;
- }
+ const Scalar &arg_scalar = arg_value->ResolveValue(&exe_ctx);
- // Okay, now run the function:
+ if (!process->WriteScalarToMemory(args_addr_ref + offset, arg_scalar,
+ arg_scalar.GetByteSize(), error))
+ return false;
+ }
- Address wrapper_address (m_jit_start_addr);
-
- lldb::addr_t args = { args_addr };
-
- lldb::ThreadPlanSP new_plan_sp (new ThreadPlanCallFunction (*thread,
- wrapper_address,
- CompilerType(),
- args,
- options));
- new_plan_sp->SetIsMasterPlan(true);
- new_plan_sp->SetOkayToDiscard (false);
- return new_plan_sp;
+ return true;
}
-bool
-FunctionCaller::FetchFunctionResults (ExecutionContext &exe_ctx, lldb::addr_t args_addr, Value &ret_value)
-{
- // Read the return value - it is the last field in the struct:
- // FIXME: How does clang tell us there's no return value? We need to handle that case.
- // FIXME: Create our ThreadPlanCallFunction with the return CompilerType, and then use GetReturnValueObject
- // to fetch the value. That way we can fetch any values we need.
-
- Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
-
- if (log)
- log->Printf("-- [FunctionCaller::FetchFunctionResults] Fetching function results for \"%s\"--", m_name.c_str());
-
- Process *process = exe_ctx.GetProcessPtr();
-
- if (process == NULL)
- return false;
-
- lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
-
- if (process != jit_process_sp.get())
- return false;
-
- Error error;
- ret_value.GetScalar() = process->ReadUnsignedIntegerFromMemory (args_addr + m_return_offset, m_return_size, 0, error);
+bool FunctionCaller::InsertFunction(ExecutionContext &exe_ctx,
+ lldb::addr_t &args_addr_ref,
+ DiagnosticManager &diagnostic_manager) {
+ if (CompileFunction(exe_ctx.GetThreadSP(), diagnostic_manager) != 0)
+ return false;
+ if (!WriteFunctionWrapper(exe_ctx, diagnostic_manager))
+ return false;
+ if (!WriteFunctionArguments(exe_ctx, args_addr_ref, diagnostic_manager))
+ return false;
+
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP));
+ if (log)
+ log->Printf("Call Address: 0x%" PRIx64 " Struct Address: 0x%" PRIx64 ".\n",
+ m_jit_start_addr, args_addr_ref);
- if (error.Fail())
- return false;
+ return true;
+}
- ret_value.SetCompilerType(m_function_return_type);
- ret_value.SetValueType(Value::eValueTypeScalar);
- return true;
+lldb::ThreadPlanSP FunctionCaller::GetThreadPlanToCallFunction(
+ ExecutionContext &exe_ctx, lldb::addr_t args_addr,
+ const EvaluateExpressionOptions &options,
+ DiagnosticManager &diagnostic_manager) {
+ Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS |
+ LIBLLDB_LOG_STEP));
+
+ if (log)
+ log->Printf("-- [FunctionCaller::GetThreadPlanToCallFunction] Creating "
+ "thread plan to call function \"%s\" --",
+ m_name.c_str());
+
+ // FIXME: Use the errors Stream for better error reporting.
+ Thread *thread = exe_ctx.GetThreadPtr();
+ if (thread == NULL) {
+ diagnostic_manager.PutCString(
+ eDiagnosticSeverityError,
+ "Can't call a function without a valid thread.");
+ return NULL;
+ }
+
+ // Okay, now run the function:
+
+ Address wrapper_address(m_jit_start_addr);
+
+ lldb::addr_t args = {args_addr};
+
+ lldb::ThreadPlanSP new_plan_sp(new ThreadPlanCallFunction(
+ *thread, wrapper_address, CompilerType(), args, options));
+ new_plan_sp->SetIsMasterPlan(true);
+ new_plan_sp->SetOkayToDiscard(false);
+ return new_plan_sp;
}
-void
-FunctionCaller::DeallocateFunctionResults (ExecutionContext &exe_ctx, lldb::addr_t args_addr)
-{
- std::list<lldb::addr_t>::iterator pos;
- pos = std::find(m_wrapper_args_addrs.begin(), m_wrapper_args_addrs.end(), args_addr);
- if (pos != m_wrapper_args_addrs.end())
- m_wrapper_args_addrs.erase(pos);
-
- exe_ctx.GetProcessRef().DeallocateMemory(args_addr);
+bool FunctionCaller::FetchFunctionResults(ExecutionContext &exe_ctx,
+ lldb::addr_t args_addr,
+ Value &ret_value) {
+ // Read the return value - it is the last field in the struct:
+ // FIXME: How does clang tell us there's no return value? We need to handle
+ // that case.
+ // FIXME: Create our ThreadPlanCallFunction with the return CompilerType, and
+ // then use GetReturnValueObject
+ // to fetch the value. That way we can fetch any values we need.
+
+ Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS |
+ LIBLLDB_LOG_STEP));
+
+ if (log)
+ log->Printf("-- [FunctionCaller::FetchFunctionResults] Fetching function "
+ "results for \"%s\"--",
+ m_name.c_str());
+
+ Process *process = exe_ctx.GetProcessPtr();
+
+ if (process == NULL)
+ return false;
+
+ lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
+
+ if (process != jit_process_sp.get())
+ return false;
+
+ Error error;
+ ret_value.GetScalar() = process->ReadUnsignedIntegerFromMemory(
+ args_addr + m_return_offset, m_return_size, 0, error);
+
+ if (error.Fail())
+ return false;
+
+ ret_value.SetCompilerType(m_function_return_type);
+ ret_value.SetValueType(Value::eValueTypeScalar);
+ return true;
}
-lldb::ExpressionResults
-FunctionCaller::ExecuteFunction(ExecutionContext &exe_ctx, lldb::addr_t *args_addr_ptr,
- const EvaluateExpressionOptions &options, DiagnosticManager &diagnostic_manager,
- Value &results)
-{
- lldb::ExpressionResults return_value = lldb::eExpressionSetupError;
-
- // FunctionCaller::ExecuteFunction execution is always just to get the result. Do make sure we ignore
- // breakpoints, unwind on error, and don't try to debug it.
- EvaluateExpressionOptions real_options = options;
- real_options.SetDebug(false);
- real_options.SetUnwindOnError(true);
- real_options.SetIgnoreBreakpoints(true);
-
- lldb::addr_t args_addr;
-
- if (args_addr_ptr != NULL)
- args_addr = *args_addr_ptr;
- else
- args_addr = LLDB_INVALID_ADDRESS;
-
- if (CompileFunction(exe_ctx.GetThreadSP(), diagnostic_manager) != 0)
- return lldb::eExpressionSetupError;
-
- if (args_addr == LLDB_INVALID_ADDRESS)
- {
- if (!InsertFunction(exe_ctx, args_addr, diagnostic_manager))
- return lldb::eExpressionSetupError;
+void FunctionCaller::DeallocateFunctionResults(ExecutionContext &exe_ctx,
+ lldb::addr_t args_addr) {
+ std::list<lldb::addr_t>::iterator pos;
+ pos = std::find(m_wrapper_args_addrs.begin(), m_wrapper_args_addrs.end(),
+ args_addr);
+ if (pos != m_wrapper_args_addrs.end())
+ m_wrapper_args_addrs.erase(pos);
+
+ exe_ctx.GetProcessRef().DeallocateMemory(args_addr);
+}
+
+lldb::ExpressionResults FunctionCaller::ExecuteFunction(
+ ExecutionContext &exe_ctx, lldb::addr_t *args_addr_ptr,
+ const EvaluateExpressionOptions &options,
+ DiagnosticManager &diagnostic_manager, Value &results) {
+ lldb::ExpressionResults return_value = lldb::eExpressionSetupError;
+
+ // FunctionCaller::ExecuteFunction execution is always just to get the result.
+ // Do make sure we ignore
+ // breakpoints, unwind on error, and don't try to debug it.
+ EvaluateExpressionOptions real_options = options;
+ real_options.SetDebug(false);
+ real_options.SetUnwindOnError(true);
+ real_options.SetIgnoreBreakpoints(true);
+
+ lldb::addr_t args_addr;
+
+ if (args_addr_ptr != NULL)
+ args_addr = *args_addr_ptr;
+ else
+ args_addr = LLDB_INVALID_ADDRESS;
+
+ if (CompileFunction(exe_ctx.GetThreadSP(), diagnostic_manager) != 0)
+ return lldb::eExpressionSetupError;
+
+ if (args_addr == LLDB_INVALID_ADDRESS) {
+ if (!InsertFunction(exe_ctx, args_addr, diagnostic_manager))
+ return lldb::eExpressionSetupError;
+ }
+
+ Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS |
+ LIBLLDB_LOG_STEP));
+
+ if (log)
+ log->Printf(
+ "== [FunctionCaller::ExecuteFunction] Executing function \"%s\" ==",
+ m_name.c_str());
+
+ lldb::ThreadPlanSP call_plan_sp = GetThreadPlanToCallFunction(
+ exe_ctx, args_addr, real_options, diagnostic_manager);
+ if (!call_plan_sp)
+ return lldb::eExpressionSetupError;
+
+ // We need to make sure we record the fact that we are running an expression
+ // here
+ // otherwise this fact will fail to be recorded when fetching an Objective-C
+ // object description
+ if (exe_ctx.GetProcessPtr())
+ exe_ctx.GetProcessPtr()->SetRunningUserExpression(true);
+
+ return_value = exe_ctx.GetProcessRef().RunThreadPlan(
+ exe_ctx, call_plan_sp, real_options, diagnostic_manager);
+
+ if (log) {
+ if (return_value != lldb::eExpressionCompleted) {
+ log->Printf("== [FunctionCaller::ExecuteFunction] Execution of \"%s\" "
+ "completed abnormally ==",
+ m_name.c_str());
+ } else {
+ log->Printf("== [FunctionCaller::ExecuteFunction] Execution of \"%s\" "
+ "completed normally ==",
+ m_name.c_str());
}
+ }
- Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
+ if (exe_ctx.GetProcessPtr())
+ exe_ctx.GetProcessPtr()->SetRunningUserExpression(false);
- if (log)
- log->Printf("== [FunctionCaller::ExecuteFunction] Executing function \"%s\" ==", m_name.c_str());
+ if (args_addr_ptr != NULL)
+ *args_addr_ptr = args_addr;
- lldb::ThreadPlanSP call_plan_sp = GetThreadPlanToCallFunction(exe_ctx, args_addr, real_options, diagnostic_manager);
- if (!call_plan_sp)
- return lldb::eExpressionSetupError;
-
- // We need to make sure we record the fact that we are running an expression here
- // otherwise this fact will fail to be recorded when fetching an Objective-C object description
- if (exe_ctx.GetProcessPtr())
- exe_ctx.GetProcessPtr()->SetRunningUserExpression(true);
-
- return_value = exe_ctx.GetProcessRef().RunThreadPlan(exe_ctx, call_plan_sp, real_options, diagnostic_manager);
-
- if (log)
- {
- if (return_value != lldb::eExpressionCompleted)
- {
- log->Printf("== [FunctionCaller::ExecuteFunction] Execution of \"%s\" completed abnormally ==", m_name.c_str());
- }
- else
- {
- log->Printf("== [FunctionCaller::ExecuteFunction] Execution of \"%s\" completed normally ==", m_name.c_str());
- }
- }
-
- if (exe_ctx.GetProcessPtr())
- exe_ctx.GetProcessPtr()->SetRunningUserExpression(false);
-
- if (args_addr_ptr != NULL)
- *args_addr_ptr = args_addr;
-
- if (return_value != lldb::eExpressionCompleted)
- return return_value;
-
- FetchFunctionResults(exe_ctx, args_addr, results);
-
- if (args_addr_ptr == NULL)
- DeallocateFunctionResults(exe_ctx, args_addr);
-
- return lldb::eExpressionCompleted;
+ if (return_value != lldb::eExpressionCompleted)
+ return return_value;
+
+ FetchFunctionResults(exe_ctx, args_addr, results);
+
+ if (args_addr_ptr == NULL)
+ DeallocateFunctionResults(exe_ctx, args_addr);
+
+ return lldb::eExpressionCompleted;
}
Modified: lldb/trunk/source/Expression/IRDynamicChecks.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/IRDynamicChecks.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/IRDynamicChecks.cpp (original)
+++ lldb/trunk/source/Expression/IRDynamicChecks.cpp Tue Sep 6 15:57:50 2016
@@ -10,13 +10,13 @@
// C Includes
// C++ Includes
// Other libraries and framework includes
-#include "llvm/Support/raw_ostream.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Value.h"
+#include "llvm/Support/raw_ostream.h"
// Project includes
#include "lldb/Expression/IRDynamicChecks.h"
@@ -39,76 +39,72 @@ static char ID;
#define VALID_OBJC_OBJECT_CHECK_NAME "$__lldb_objc_object_check"
static const char g_valid_pointer_check_text[] =
-"extern \"C\" void\n"
-"_$__lldb_valid_pointer_check (unsigned char *$__lldb_arg_ptr)\n"
-"{\n"
-" unsigned char $__lldb_local_val = *$__lldb_arg_ptr;\n"
-"}";
+ "extern \"C\" void\n"
+ "_$__lldb_valid_pointer_check (unsigned char *$__lldb_arg_ptr)\n"
+ "{\n"
+ " unsigned char $__lldb_local_val = *$__lldb_arg_ptr;\n"
+ "}";
DynamicCheckerFunctions::DynamicCheckerFunctions() = default;
DynamicCheckerFunctions::~DynamicCheckerFunctions() = default;
-bool
-DynamicCheckerFunctions::Install(DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx)
-{
- Error error;
- m_valid_pointer_check.reset(exe_ctx.GetTargetRef().GetUtilityFunctionForLanguage(g_valid_pointer_check_text,
- lldb::eLanguageTypeC,
- VALID_POINTER_CHECK_NAME,
- error));
- if (error.Fail())
- return false;
+bool DynamicCheckerFunctions::Install(DiagnosticManager &diagnostic_manager,
+ ExecutionContext &exe_ctx) {
+ Error error;
+ m_valid_pointer_check.reset(
+ exe_ctx.GetTargetRef().GetUtilityFunctionForLanguage(
+ g_valid_pointer_check_text, lldb::eLanguageTypeC,
+ VALID_POINTER_CHECK_NAME, error));
+ if (error.Fail())
+ return false;
- if (!m_valid_pointer_check->Install(diagnostic_manager, exe_ctx))
- return false;
+ if (!m_valid_pointer_check->Install(diagnostic_manager, exe_ctx))
+ return false;
- Process *process = exe_ctx.GetProcessPtr();
+ Process *process = exe_ctx.GetProcessPtr();
- if (process)
- {
- ObjCLanguageRuntime *objc_language_runtime = process->GetObjCLanguageRuntime();
-
- if (objc_language_runtime)
- {
- m_objc_object_check.reset(objc_language_runtime->CreateObjectChecker(VALID_OBJC_OBJECT_CHECK_NAME));
-
- if (!m_objc_object_check->Install(diagnostic_manager, exe_ctx))
- return false;
- }
+ if (process) {
+ ObjCLanguageRuntime *objc_language_runtime =
+ process->GetObjCLanguageRuntime();
+
+ if (objc_language_runtime) {
+ m_objc_object_check.reset(objc_language_runtime->CreateObjectChecker(
+ VALID_OBJC_OBJECT_CHECK_NAME));
+
+ if (!m_objc_object_check->Install(diagnostic_manager, exe_ctx))
+ return false;
}
+ }
- return true;
+ return true;
}
-bool
-DynamicCheckerFunctions::DoCheckersExplainStop (lldb::addr_t addr, Stream &message)
-{
- // FIXME: We have to get the checkers to know why they scotched the call in more detail,
- // so we can print a better message here.
- if (m_valid_pointer_check && m_valid_pointer_check->ContainsAddress(addr))
- {
- message.Printf ("Attempted to dereference an invalid pointer.");
- return true;
- }
- else if (m_objc_object_check && m_objc_object_check->ContainsAddress(addr))
- {
- message.Printf ("Attempted to dereference an invalid ObjC Object or send it an unrecognized selector");
- return true;
- }
- return false;
+bool DynamicCheckerFunctions::DoCheckersExplainStop(lldb::addr_t addr,
+ Stream &message) {
+ // FIXME: We have to get the checkers to know why they scotched the call in
+ // more detail,
+ // so we can print a better message here.
+ if (m_valid_pointer_check && m_valid_pointer_check->ContainsAddress(addr)) {
+ message.Printf("Attempted to dereference an invalid pointer.");
+ return true;
+ } else if (m_objc_object_check &&
+ m_objc_object_check->ContainsAddress(addr)) {
+ message.Printf("Attempted to dereference an invalid ObjC Object or send it "
+ "an unrecognized selector");
+ return true;
+ }
+ return false;
}
-static std::string
-PrintValue(llvm::Value *V, bool truncate = false)
-{
- std::string s;
- raw_string_ostream rso(s);
- V->print(rso);
- rso.flush();
- if (truncate)
- s.resize(s.length() - 1);
- return s;
+static std::string PrintValue(llvm::Value *V, bool truncate = false) {
+ std::string s;
+ raw_string_ostream rso(s);
+ V->print(rso);
+ rso.flush();
+ if (truncate)
+ s.resize(s.length() - 1);
+ return s;
}
//----------------------------------------------------------------------
@@ -141,537 +137,476 @@ PrintValue(llvm::Value *V, bool truncate
//----------------------------------------------------------------------
class Instrumenter {
public:
- //------------------------------------------------------------------
- /// Constructor
- ///
- /// @param[in] module
- /// The module being instrumented.
- //------------------------------------------------------------------
- Instrumenter (llvm::Module &module,
- DynamicCheckerFunctions &checker_functions) :
- m_module(module),
- m_checker_functions(checker_functions),
- m_i8ptr_ty(nullptr),
- m_intptr_ty(nullptr)
- {
+ //------------------------------------------------------------------
+ /// Constructor
+ ///
+ /// @param[in] module
+ /// The module being instrumented.
+ //------------------------------------------------------------------
+ Instrumenter(llvm::Module &module, DynamicCheckerFunctions &checker_functions)
+ : m_module(module), m_checker_functions(checker_functions),
+ m_i8ptr_ty(nullptr), m_intptr_ty(nullptr) {}
+
+ virtual ~Instrumenter() = default;
+
+ //------------------------------------------------------------------
+ /// Inspect a function to find instructions to instrument
+ ///
+ /// @param[in] function
+ /// The function to inspect.
+ ///
+ /// @return
+ /// True on success; false on error.
+ //------------------------------------------------------------------
+ bool Inspect(llvm::Function &function) { return InspectFunction(function); }
+
+ //------------------------------------------------------------------
+ /// Instrument all the instructions found by Inspect()
+ ///
+ /// @return
+ /// True on success; false on error.
+ //------------------------------------------------------------------
+ bool Instrument() {
+ for (InstIterator ii = m_to_instrument.begin(),
+ last_ii = m_to_instrument.end();
+ ii != last_ii; ++ii) {
+ if (!InstrumentInstruction(*ii))
+ return false;
}
- virtual ~Instrumenter() = default;
+ return true;
+ }
- //------------------------------------------------------------------
- /// Inspect a function to find instructions to instrument
- ///
- /// @param[in] function
- /// The function to inspect.
- ///
- /// @return
- /// True on success; false on error.
- //------------------------------------------------------------------
- bool Inspect (llvm::Function &function)
- {
- return InspectFunction(function);
+protected:
+ //------------------------------------------------------------------
+ /// Add instrumentation to a single instruction
+ ///
+ /// @param[in] inst
+ /// The instruction to be instrumented.
+ ///
+ /// @return
+ /// True on success; false otherwise.
+ //------------------------------------------------------------------
+ virtual bool InstrumentInstruction(llvm::Instruction *inst) = 0;
+
+ //------------------------------------------------------------------
+ /// Register a single instruction to be instrumented
+ ///
+ /// @param[in] inst
+ /// The instruction to be instrumented.
+ //------------------------------------------------------------------
+ void RegisterInstruction(llvm::Instruction &i) {
+ m_to_instrument.push_back(&i);
+ }
+
+ //------------------------------------------------------------------
+ /// Determine whether a single instruction is interesting to
+ /// instrument, and, if so, call RegisterInstruction
+ ///
+ /// @param[in] i
+ /// The instruction to be inspected.
+ ///
+ /// @return
+ /// False if there was an error scanning; true otherwise.
+ //------------------------------------------------------------------
+ virtual bool InspectInstruction(llvm::Instruction &i) { return true; }
+
+ //------------------------------------------------------------------
+ /// Scan a basic block to see if any instructions are interesting
+ ///
+ /// @param[in] bb
+ /// The basic block to be inspected.
+ ///
+ /// @return
+ /// False if there was an error scanning; true otherwise.
+ //------------------------------------------------------------------
+ virtual bool InspectBasicBlock(llvm::BasicBlock &bb) {
+ for (llvm::BasicBlock::iterator ii = bb.begin(), last_ii = bb.end();
+ ii != last_ii; ++ii) {
+ if (!InspectInstruction(*ii))
+ return false;
}
- //------------------------------------------------------------------
- /// Instrument all the instructions found by Inspect()
- ///
- /// @return
- /// True on success; false on error.
- //------------------------------------------------------------------
- bool Instrument ()
- {
- for (InstIterator ii = m_to_instrument.begin(), last_ii = m_to_instrument.end();
- ii != last_ii;
- ++ii)
- {
- if (!InstrumentInstruction(*ii))
- return false;
- }
+ return true;
+ }
- return true;
+ //------------------------------------------------------------------
+ /// Scan a function to see if any instructions are interesting
+ ///
+ /// @param[in] f
+ /// The function to be inspected.
+ ///
+ /// @return
+ /// False if there was an error scanning; true otherwise.
+ //------------------------------------------------------------------
+ virtual bool InspectFunction(llvm::Function &f) {
+ for (llvm::Function::iterator bbi = f.begin(), last_bbi = f.end();
+ bbi != last_bbi; ++bbi) {
+ if (!InspectBasicBlock(*bbi))
+ return false;
}
+ return true;
+ }
+
+ //------------------------------------------------------------------
+ /// Build a function pointer for a function with signature
+ /// void (*)(uint8_t*) with a given address
+ ///
+ /// @param[in] start_address
+ /// The address of the function.
+ ///
+ /// @return
+ /// The function pointer, for use in a CallInst.
+ //------------------------------------------------------------------
+ llvm::Value *BuildPointerValidatorFunc(lldb::addr_t start_address) {
+ llvm::Type *param_array[1];
+
+ param_array[0] = const_cast<llvm::PointerType *>(GetI8PtrTy());
+
+ ArrayRef<llvm::Type *> params(param_array, 1);
+
+ FunctionType *fun_ty = FunctionType::get(
+ llvm::Type::getVoidTy(m_module.getContext()), params, true);
+ PointerType *fun_ptr_ty = PointerType::getUnqual(fun_ty);
+ Constant *fun_addr_int =
+ ConstantInt::get(GetIntptrTy(), start_address, false);
+ return ConstantExpr::getIntToPtr(fun_addr_int, fun_ptr_ty);
+ }
+
+ //------------------------------------------------------------------
+ /// Build a function pointer for a function with signature
+ /// void (*)(uint8_t*, uint8_t*) with a given address
+ ///
+ /// @param[in] start_address
+ /// The address of the function.
+ ///
+ /// @return
+ /// The function pointer, for use in a CallInst.
+ //------------------------------------------------------------------
+ llvm::Value *BuildObjectCheckerFunc(lldb::addr_t start_address) {
+ llvm::Type *param_array[2];
+
+ param_array[0] = const_cast<llvm::PointerType *>(GetI8PtrTy());
+ param_array[1] = const_cast<llvm::PointerType *>(GetI8PtrTy());
+
+ ArrayRef<llvm::Type *> params(param_array, 2);
+
+ FunctionType *fun_ty = FunctionType::get(
+ llvm::Type::getVoidTy(m_module.getContext()), params, true);
+ PointerType *fun_ptr_ty = PointerType::getUnqual(fun_ty);
+ Constant *fun_addr_int =
+ ConstantInt::get(GetIntptrTy(), start_address, false);
+ return ConstantExpr::getIntToPtr(fun_addr_int, fun_ptr_ty);
+ }
+
+ PointerType *GetI8PtrTy() {
+ if (!m_i8ptr_ty)
+ m_i8ptr_ty = llvm::Type::getInt8PtrTy(m_module.getContext());
+
+ return m_i8ptr_ty;
+ }
+
+ IntegerType *GetIntptrTy() {
+ if (!m_intptr_ty) {
+ llvm::DataLayout data_layout(&m_module);
+
+ m_intptr_ty = llvm::Type::getIntNTy(m_module.getContext(),
+ data_layout.getPointerSizeInBits());
+ }
+
+ return m_intptr_ty;
+ }
+
+ typedef std::vector<llvm::Instruction *> InstVector;
+ typedef InstVector::iterator InstIterator;
+
+ InstVector m_to_instrument; ///< List of instructions the inspector found
+ llvm::Module &m_module; ///< The module which is being instrumented
+ DynamicCheckerFunctions
+ &m_checker_functions; ///< The dynamic checker functions for the process
+
+private:
+ PointerType *m_i8ptr_ty;
+ IntegerType *m_intptr_ty;
+};
+
+class ValidPointerChecker : public Instrumenter {
+public:
+ ValidPointerChecker(llvm::Module &module,
+ DynamicCheckerFunctions &checker_functions)
+ : Instrumenter(module, checker_functions),
+ m_valid_pointer_check_func(nullptr) {}
+
+ ~ValidPointerChecker() override = default;
+
protected:
- //------------------------------------------------------------------
- /// Add instrumentation to a single instruction
- ///
- /// @param[in] inst
- /// The instruction to be instrumented.
- ///
- /// @return
- /// True on success; false otherwise.
- //------------------------------------------------------------------
- virtual bool InstrumentInstruction(llvm::Instruction *inst) = 0;
-
- //------------------------------------------------------------------
- /// Register a single instruction to be instrumented
- ///
- /// @param[in] inst
- /// The instruction to be instrumented.
- //------------------------------------------------------------------
- void RegisterInstruction(llvm::Instruction &i)
- {
- m_to_instrument.push_back(&i);
- }
+ bool InstrumentInstruction(llvm::Instruction *inst) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- //------------------------------------------------------------------
- /// Determine whether a single instruction is interesting to
- /// instrument, and, if so, call RegisterInstruction
- ///
- /// @param[in] i
- /// The instruction to be inspected.
- ///
- /// @return
- /// False if there was an error scanning; true otherwise.
- //------------------------------------------------------------------
- virtual bool InspectInstruction(llvm::Instruction &i)
- {
- return true;
- }
+ if (log)
+ log->Printf("Instrumenting load/store instruction: %s\n",
+ PrintValue(inst).c_str());
- //------------------------------------------------------------------
- /// Scan a basic block to see if any instructions are interesting
- ///
- /// @param[in] bb
- /// The basic block to be inspected.
- ///
- /// @return
- /// False if there was an error scanning; true otherwise.
- //------------------------------------------------------------------
- virtual bool InspectBasicBlock(llvm::BasicBlock &bb)
- {
- for (llvm::BasicBlock::iterator ii = bb.begin(), last_ii = bb.end();
- ii != last_ii;
- ++ii)
- {
- if (!InspectInstruction(*ii))
- return false;
- }
+ if (!m_valid_pointer_check_func)
+ m_valid_pointer_check_func = BuildPointerValidatorFunc(
+ m_checker_functions.m_valid_pointer_check->StartAddress());
- return true;
- }
+ llvm::Value *dereferenced_ptr = nullptr;
- //------------------------------------------------------------------
- /// Scan a function to see if any instructions are interesting
- ///
- /// @param[in] f
- /// The function to be inspected.
- ///
- /// @return
- /// False if there was an error scanning; true otherwise.
- //------------------------------------------------------------------
- virtual bool InspectFunction(llvm::Function &f)
- {
- for (llvm::Function::iterator bbi = f.begin(), last_bbi = f.end();
- bbi != last_bbi;
- ++bbi)
- {
- if (!InspectBasicBlock(*bbi))
- return false;
- }
+ if (llvm::LoadInst *li = dyn_cast<llvm::LoadInst>(inst))
+ dereferenced_ptr = li->getPointerOperand();
+ else if (llvm::StoreInst *si = dyn_cast<llvm::StoreInst>(inst))
+ dereferenced_ptr = si->getPointerOperand();
+ else
+ return false;
- return true;
- }
+ // Insert an instruction to cast the loaded value to int8_t*
- //------------------------------------------------------------------
- /// Build a function pointer for a function with signature
- /// void (*)(uint8_t*) with a given address
- ///
- /// @param[in] start_address
- /// The address of the function.
- ///
- /// @return
- /// The function pointer, for use in a CallInst.
- //------------------------------------------------------------------
- llvm::Value *BuildPointerValidatorFunc(lldb::addr_t start_address)
- {
- llvm::Type *param_array[1];
-
- param_array[0] = const_cast<llvm::PointerType*>(GetI8PtrTy());
-
- ArrayRef<llvm::Type*> params(param_array, 1);
-
- FunctionType *fun_ty = FunctionType::get(llvm::Type::getVoidTy(m_module.getContext()), params, true);
- PointerType *fun_ptr_ty = PointerType::getUnqual(fun_ty);
- Constant *fun_addr_int = ConstantInt::get(GetIntptrTy(), start_address, false);
- return ConstantExpr::getIntToPtr(fun_addr_int, fun_ptr_ty);
- }
+ BitCastInst *bit_cast =
+ new BitCastInst(dereferenced_ptr, GetI8PtrTy(), "", inst);
- //------------------------------------------------------------------
- /// Build a function pointer for a function with signature
- /// void (*)(uint8_t*, uint8_t*) with a given address
- ///
- /// @param[in] start_address
- /// The address of the function.
- ///
- /// @return
- /// The function pointer, for use in a CallInst.
- //------------------------------------------------------------------
- llvm::Value *BuildObjectCheckerFunc(lldb::addr_t start_address)
- {
- llvm::Type *param_array[2];
-
- param_array[0] = const_cast<llvm::PointerType*>(GetI8PtrTy());
- param_array[1] = const_cast<llvm::PointerType*>(GetI8PtrTy());
-
- ArrayRef<llvm::Type*> params(param_array, 2);
-
- FunctionType *fun_ty = FunctionType::get(llvm::Type::getVoidTy(m_module.getContext()), params, true);
- PointerType *fun_ptr_ty = PointerType::getUnqual(fun_ty);
- Constant *fun_addr_int = ConstantInt::get(GetIntptrTy(), start_address, false);
- return ConstantExpr::getIntToPtr(fun_addr_int, fun_ptr_ty);
- }
+ // Insert an instruction to call the helper with the result
- PointerType *GetI8PtrTy()
- {
- if (!m_i8ptr_ty)
- m_i8ptr_ty = llvm::Type::getInt8PtrTy(m_module.getContext());
+ llvm::Value *arg_array[1];
- return m_i8ptr_ty;
- }
+ arg_array[0] = bit_cast;
- IntegerType *GetIntptrTy()
- {
- if (!m_intptr_ty)
- {
- llvm::DataLayout data_layout(&m_module);
+ llvm::ArrayRef<llvm::Value *> args(arg_array, 1);
- m_intptr_ty = llvm::Type::getIntNTy(m_module.getContext(), data_layout.getPointerSizeInBits());
- }
+ CallInst::Create(m_valid_pointer_check_func, args, "", inst);
- return m_intptr_ty;
- }
+ return true;
+ }
- typedef std::vector <llvm::Instruction *> InstVector;
- typedef InstVector::iterator InstIterator;
+ bool InspectInstruction(llvm::Instruction &i) override {
+ if (dyn_cast<llvm::LoadInst>(&i) || dyn_cast<llvm::StoreInst>(&i))
+ RegisterInstruction(i);
- InstVector m_to_instrument; ///< List of instructions the inspector found
- llvm::Module &m_module; ///< The module which is being instrumented
- DynamicCheckerFunctions &m_checker_functions; ///< The dynamic checker functions for the process
+ return true;
+ }
private:
- PointerType *m_i8ptr_ty;
- IntegerType *m_intptr_ty;
+ llvm::Value *m_valid_pointer_check_func;
};
-class ValidPointerChecker : public Instrumenter
-{
+class ObjcObjectChecker : public Instrumenter {
public:
- ValidPointerChecker (llvm::Module &module,
- DynamicCheckerFunctions &checker_functions) :
- Instrumenter(module, checker_functions),
- m_valid_pointer_check_func(nullptr)
- {
- }
+ ObjcObjectChecker(llvm::Module &module,
+ DynamicCheckerFunctions &checker_functions)
+ : Instrumenter(module, checker_functions),
+ m_objc_object_check_func(nullptr) {}
+
+ ~ObjcObjectChecker() override = default;
+
+ enum msgSend_type {
+ eMsgSend = 0,
+ eMsgSendSuper,
+ eMsgSendSuper_stret,
+ eMsgSend_fpret,
+ eMsgSend_stret
+ };
- ~ValidPointerChecker() override = default;
+ std::map<llvm::Instruction *, msgSend_type> msgSend_types;
protected:
- bool InstrumentInstruction(llvm::Instruction *inst) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ bool InstrumentInstruction(llvm::Instruction *inst) override {
+ CallInst *call_inst = dyn_cast<CallInst>(inst);
- if (log)
- log->Printf("Instrumenting load/store instruction: %s\n",
- PrintValue(inst).c_str());
+ if (!call_inst)
+ return false; // call_inst really shouldn't be nullptr, because otherwise
+ // InspectInstruction wouldn't have registered it
- if (!m_valid_pointer_check_func)
- m_valid_pointer_check_func = BuildPointerValidatorFunc(m_checker_functions.m_valid_pointer_check->StartAddress());
+ if (!m_objc_object_check_func)
+ m_objc_object_check_func = BuildObjectCheckerFunc(
+ m_checker_functions.m_objc_object_check->StartAddress());
- llvm::Value *dereferenced_ptr = nullptr;
+ // id objc_msgSend(id theReceiver, SEL theSelector, ...)
- if (llvm::LoadInst *li = dyn_cast<llvm::LoadInst> (inst))
- dereferenced_ptr = li->getPointerOperand();
- else if (llvm::StoreInst *si = dyn_cast<llvm::StoreInst> (inst))
- dereferenced_ptr = si->getPointerOperand();
- else
- return false;
+ llvm::Value *target_object;
+ llvm::Value *selector;
- // Insert an instruction to cast the loaded value to int8_t*
+ switch (msgSend_types[inst]) {
+ case eMsgSend:
+ case eMsgSend_fpret:
+ target_object = call_inst->getArgOperand(0);
+ selector = call_inst->getArgOperand(1);
+ break;
+ case eMsgSend_stret:
+ target_object = call_inst->getArgOperand(1);
+ selector = call_inst->getArgOperand(2);
+ break;
+ case eMsgSendSuper:
+ case eMsgSendSuper_stret:
+ return true;
+ }
- BitCastInst *bit_cast = new BitCastInst(dereferenced_ptr,
- GetI8PtrTy(),
- "",
- inst);
+ // These objects should always be valid according to Sean Calannan
+ assert(target_object);
+ assert(selector);
- // Insert an instruction to call the helper with the result
+ // Insert an instruction to cast the receiver id to int8_t*
- llvm::Value *arg_array[1];
+ BitCastInst *bit_cast =
+ new BitCastInst(target_object, GetI8PtrTy(), "", inst);
- arg_array[0] = bit_cast;
+ // Insert an instruction to call the helper with the result
- llvm::ArrayRef<llvm::Value *> args(arg_array, 1);
+ llvm::Value *arg_array[2];
- CallInst::Create(m_valid_pointer_check_func,
- args,
- "",
- inst);
+ arg_array[0] = bit_cast;
+ arg_array[1] = selector;
- return true;
- }
+ ArrayRef<llvm::Value *> args(arg_array, 2);
- bool InspectInstruction(llvm::Instruction &i) override
- {
- if (dyn_cast<llvm::LoadInst> (&i) ||
- dyn_cast<llvm::StoreInst> (&i))
- RegisterInstruction(i);
+ CallInst::Create(m_objc_object_check_func, args, "", inst);
- return true;
- }
+ return true;
+ }
-private:
- llvm::Value *m_valid_pointer_check_func;
-};
+ static llvm::Function *GetFunction(llvm::Value *value) {
+ if (llvm::Function *function = llvm::dyn_cast<llvm::Function>(value)) {
+ return function;
+ }
-class ObjcObjectChecker : public Instrumenter
-{
-public:
- ObjcObjectChecker(llvm::Module &module,
- DynamicCheckerFunctions &checker_functions) :
- Instrumenter(module, checker_functions),
- m_objc_object_check_func(nullptr)
- {
+ if (llvm::ConstantExpr *const_expr =
+ llvm::dyn_cast<llvm::ConstantExpr>(value)) {
+ switch (const_expr->getOpcode()) {
+ default:
+ return nullptr;
+ case llvm::Instruction::BitCast:
+ return GetFunction(const_expr->getOperand(0));
+ }
}
- ~ObjcObjectChecker() override = default;
+ return nullptr;
+ }
- enum msgSend_type
- {
- eMsgSend = 0,
- eMsgSendSuper,
- eMsgSendSuper_stret,
- eMsgSend_fpret,
- eMsgSend_stret
- };
+ static llvm::Function *GetCalledFunction(llvm::CallInst *inst) {
+ return GetFunction(inst->getCalledValue());
+ }
- std::map <llvm::Instruction *, msgSend_type> msgSend_types;
+ bool InspectInstruction(llvm::Instruction &i) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
-protected:
- bool InstrumentInstruction(llvm::Instruction *inst) override
- {
- CallInst *call_inst = dyn_cast<CallInst>(inst);
-
- if (!call_inst)
- return false; // call_inst really shouldn't be nullptr, because otherwise InspectInstruction wouldn't have registered it
-
- if (!m_objc_object_check_func)
- m_objc_object_check_func = BuildObjectCheckerFunc(m_checker_functions.m_objc_object_check->StartAddress());
-
- // id objc_msgSend(id theReceiver, SEL theSelector, ...)
-
- llvm::Value *target_object;
- llvm::Value *selector;
-
- switch (msgSend_types[inst])
- {
- case eMsgSend:
- case eMsgSend_fpret:
- target_object = call_inst->getArgOperand(0);
- selector = call_inst->getArgOperand(1);
- break;
- case eMsgSend_stret:
- target_object = call_inst->getArgOperand(1);
- selector = call_inst->getArgOperand(2);
- break;
- case eMsgSendSuper:
- case eMsgSendSuper_stret:
- return true;
- }
-
- // These objects should always be valid according to Sean Calannan
- assert (target_object);
- assert (selector);
-
- // Insert an instruction to cast the receiver id to int8_t*
-
- BitCastInst *bit_cast = new BitCastInst(target_object,
- GetI8PtrTy(),
- "",
- inst);
-
- // Insert an instruction to call the helper with the result
-
- llvm::Value *arg_array[2];
-
- arg_array[0] = bit_cast;
- arg_array[1] = selector;
-
- ArrayRef<llvm::Value*> args(arg_array, 2);
-
- CallInst::Create(m_objc_object_check_func,
- args,
- "",
- inst);
+ CallInst *call_inst = dyn_cast<CallInst>(&i);
+ if (call_inst) {
+ const llvm::Function *called_function = GetCalledFunction(call_inst);
+
+ if (!called_function)
return true;
- }
-
- static llvm::Function *GetFunction(llvm::Value *value)
- {
- if (llvm::Function *function = llvm::dyn_cast<llvm::Function>(value))
- {
- return function;
- }
-
- if (llvm::ConstantExpr *const_expr = llvm::dyn_cast<llvm::ConstantExpr>(value))
- {
- switch (const_expr->getOpcode())
- {
- default:
- return nullptr;
- case llvm::Instruction::BitCast:
- return GetFunction(const_expr->getOperand(0));
- }
- }
-
- return nullptr;
- }
-
- static llvm::Function *GetCalledFunction(llvm::CallInst *inst)
- {
- return GetFunction(inst->getCalledValue());
- }
- bool InspectInstruction(llvm::Instruction &i) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- CallInst *call_inst = dyn_cast<CallInst>(&i);
-
- if (call_inst)
- {
- const llvm::Function *called_function = GetCalledFunction(call_inst);
-
- if (!called_function)
- return true;
-
- std::string name_str = called_function->getName().str();
- const char* name_cstr = name_str.c_str();
-
- if (log)
- log->Printf("Found call to %s: %s\n", name_cstr, PrintValue(call_inst).c_str());
-
- if (name_str.find("objc_msgSend") == std::string::npos)
- return true;
-
- if (!strcmp(name_cstr, "objc_msgSend"))
- {
- RegisterInstruction(i);
- msgSend_types[&i] = eMsgSend;
- return true;
- }
-
- if (!strcmp(name_cstr, "objc_msgSend_stret"))
- {
- RegisterInstruction(i);
- msgSend_types[&i] = eMsgSend_stret;
- return true;
- }
-
- if (!strcmp(name_cstr, "objc_msgSend_fpret"))
- {
- RegisterInstruction(i);
- msgSend_types[&i] = eMsgSend_fpret;
- return true;
- }
-
- if (!strcmp(name_cstr, "objc_msgSendSuper"))
- {
- RegisterInstruction(i);
- msgSend_types[&i] = eMsgSendSuper;
- return true;
- }
-
- if (!strcmp(name_cstr, "objc_msgSendSuper_stret"))
- {
- RegisterInstruction(i);
- msgSend_types[&i] = eMsgSendSuper_stret;
- return true;
- }
+ std::string name_str = called_function->getName().str();
+ const char *name_cstr = name_str.c_str();
- if (log)
- log->Printf("Function name '%s' contains 'objc_msgSend' but is not handled", name_str.c_str());
+ if (log)
+ log->Printf("Found call to %s: %s\n", name_cstr,
+ PrintValue(call_inst).c_str());
- return true;
- }
+ if (name_str.find("objc_msgSend") == std::string::npos)
+ return true;
+
+ if (!strcmp(name_cstr, "objc_msgSend")) {
+ RegisterInstruction(i);
+ msgSend_types[&i] = eMsgSend;
+ return true;
+ }
+ if (!strcmp(name_cstr, "objc_msgSend_stret")) {
+ RegisterInstruction(i);
+ msgSend_types[&i] = eMsgSend_stret;
return true;
+ }
+
+ if (!strcmp(name_cstr, "objc_msgSend_fpret")) {
+ RegisterInstruction(i);
+ msgSend_types[&i] = eMsgSend_fpret;
+ return true;
+ }
+
+ if (!strcmp(name_cstr, "objc_msgSendSuper")) {
+ RegisterInstruction(i);
+ msgSend_types[&i] = eMsgSendSuper;
+ return true;
+ }
+
+ if (!strcmp(name_cstr, "objc_msgSendSuper_stret")) {
+ RegisterInstruction(i);
+ msgSend_types[&i] = eMsgSendSuper_stret;
+ return true;
+ }
+
+ if (log)
+ log->Printf(
+ "Function name '%s' contains 'objc_msgSend' but is not handled",
+ name_str.c_str());
+
+ return true;
}
+ return true;
+ }
+
private:
- llvm::Value *m_objc_object_check_func;
+ llvm::Value *m_objc_object_check_func;
};
IRDynamicChecks::IRDynamicChecks(DynamicCheckerFunctions &checker_functions,
- const char *func_name) :
- ModulePass(ID),
- m_func_name(func_name),
- m_checker_functions(checker_functions)
-{
-}
+ const char *func_name)
+ : ModulePass(ID), m_func_name(func_name),
+ m_checker_functions(checker_functions) {}
IRDynamicChecks::~IRDynamicChecks() = default;
-bool
-IRDynamicChecks::runOnModule(llvm::Module &M)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- llvm::Function* function = M.getFunction(StringRef(m_func_name.c_str()));
-
- if (!function)
- {
- if (log)
- log->Printf("Couldn't find %s() in the module", m_func_name.c_str());
+bool IRDynamicChecks::runOnModule(llvm::Module &M) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- return false;
- }
+ llvm::Function *function = M.getFunction(StringRef(m_func_name.c_str()));
- if (m_checker_functions.m_valid_pointer_check)
- {
- ValidPointerChecker vpc(M, m_checker_functions);
+ if (!function) {
+ if (log)
+ log->Printf("Couldn't find %s() in the module", m_func_name.c_str());
- if (!vpc.Inspect(*function))
- return false;
+ return false;
+ }
- if (!vpc.Instrument())
- return false;
- }
+ if (m_checker_functions.m_valid_pointer_check) {
+ ValidPointerChecker vpc(M, m_checker_functions);
- if (m_checker_functions.m_objc_object_check)
- {
- ObjcObjectChecker ooc(M, m_checker_functions);
+ if (!vpc.Inspect(*function))
+ return false;
- if (!ooc.Inspect(*function))
- return false;
+ if (!vpc.Instrument())
+ return false;
+ }
- if (!ooc.Instrument())
- return false;
- }
+ if (m_checker_functions.m_objc_object_check) {
+ ObjcObjectChecker ooc(M, m_checker_functions);
- if (log && log->GetVerbose())
- {
- std::string s;
- raw_string_ostream oss(s);
+ if (!ooc.Inspect(*function))
+ return false;
- M.print(oss, nullptr);
+ if (!ooc.Instrument())
+ return false;
+ }
- oss.flush();
+ if (log && log->GetVerbose()) {
+ std::string s;
+ raw_string_ostream oss(s);
- log->Printf ("Module after dynamic checks: \n%s", s.c_str());
- }
+ M.print(oss, nullptr);
- return true;
-}
+ oss.flush();
-void
-IRDynamicChecks::assignPassManager(PMStack &PMS,
- PassManagerType T)
-{
+ log->Printf("Module after dynamic checks: \n%s", s.c_str());
+ }
+
+ return true;
}
-PassManagerType
-IRDynamicChecks::getPotentialPassManagerType() const
-{
- return PMT_ModulePassManager;
+void IRDynamicChecks::assignPassManager(PMStack &PMS, PassManagerType T) {}
+
+PassManagerType IRDynamicChecks::getPotentialPassManagerType() const {
+ return PMT_ModulePassManager;
}
Modified: lldb/trunk/source/Expression/IRExecutionUnit.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/IRExecutionUnit.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/IRExecutionUnit.cpp (original)
+++ lldb/trunk/source/Expression/IRExecutionUnit.cpp Tue Sep 6 15:57:50 2016
@@ -21,576 +21,549 @@
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/Section.h"
+#include "lldb/Expression/IRExecutionUnit.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Symbol/SymbolContext.h"
-#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Symbol/SymbolFile.h"
-#include "lldb/Expression/IRExecutionUnit.h"
+#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Target/ExecutionContext.h"
-#include "lldb/Target/Target.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
+#include "lldb/Target/Target.h"
#include "lldb/Utility/LLDBAssert.h"
#include "lldb/../../source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h"
using namespace lldb_private;
-IRExecutionUnit::IRExecutionUnit (std::unique_ptr<llvm::LLVMContext> &context_ap,
- std::unique_ptr<llvm::Module> &module_ap,
- ConstString &name,
- const lldb::TargetSP &target_sp,
- const SymbolContext &sym_ctx,
- std::vector<std::string> &cpu_features) :
- IRMemoryMap(target_sp),
- m_context_ap(context_ap.release()),
- m_module_ap(module_ap.release()),
- m_module(m_module_ap.get()),
- m_cpu_features(cpu_features),
- m_name(name),
- m_sym_ctx(sym_ctx),
- m_did_jit(false),
- m_function_load_addr(LLDB_INVALID_ADDRESS),
- m_function_end_load_addr(LLDB_INVALID_ADDRESS),
- m_reported_allocations(false)
-{
-}
-
-lldb::addr_t
-IRExecutionUnit::WriteNow (const uint8_t *bytes,
- size_t size,
- Error &error)
-{
- const bool zero_memory = false;
- lldb::addr_t allocation_process_addr = Malloc (size,
- 8,
- lldb::ePermissionsWritable | lldb::ePermissionsReadable,
- eAllocationPolicyMirror,
- zero_memory,
- error);
+IRExecutionUnit::IRExecutionUnit(std::unique_ptr<llvm::LLVMContext> &context_ap,
+ std::unique_ptr<llvm::Module> &module_ap,
+ ConstString &name,
+ const lldb::TargetSP &target_sp,
+ const SymbolContext &sym_ctx,
+ std::vector<std::string> &cpu_features)
+ : IRMemoryMap(target_sp), m_context_ap(context_ap.release()),
+ m_module_ap(module_ap.release()), m_module(m_module_ap.get()),
+ m_cpu_features(cpu_features), m_name(name), m_sym_ctx(sym_ctx),
+ m_did_jit(false), m_function_load_addr(LLDB_INVALID_ADDRESS),
+ m_function_end_load_addr(LLDB_INVALID_ADDRESS),
+ m_reported_allocations(false) {}
+
+lldb::addr_t IRExecutionUnit::WriteNow(const uint8_t *bytes, size_t size,
+ Error &error) {
+ const bool zero_memory = false;
+ lldb::addr_t allocation_process_addr =
+ Malloc(size, 8, lldb::ePermissionsWritable | lldb::ePermissionsReadable,
+ eAllocationPolicyMirror, zero_memory, error);
- if (!error.Success())
- return LLDB_INVALID_ADDRESS;
+ if (!error.Success())
+ return LLDB_INVALID_ADDRESS;
- WriteMemory(allocation_process_addr, bytes, size, error);
+ WriteMemory(allocation_process_addr, bytes, size, error);
- if (!error.Success())
- {
- Error err;
- Free (allocation_process_addr, err);
+ if (!error.Success()) {
+ Error err;
+ Free(allocation_process_addr, err);
- return LLDB_INVALID_ADDRESS;
- }
+ return LLDB_INVALID_ADDRESS;
+ }
- if (Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS))
- {
- DataBufferHeap my_buffer(size, 0);
- Error err;
- ReadMemory(my_buffer.GetBytes(), allocation_process_addr, size, err);
+ if (Log *log =
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)) {
+ DataBufferHeap my_buffer(size, 0);
+ Error err;
+ ReadMemory(my_buffer.GetBytes(), allocation_process_addr, size, err);
- if (err.Success())
- {
- DataExtractor my_extractor(my_buffer.GetBytes(), my_buffer.GetByteSize(), lldb::eByteOrderBig, 8);
- my_extractor.PutToLog(log, 0, my_buffer.GetByteSize(), allocation_process_addr, 16, DataExtractor::TypeUInt8);
- }
+ if (err.Success()) {
+ DataExtractor my_extractor(my_buffer.GetBytes(), my_buffer.GetByteSize(),
+ lldb::eByteOrderBig, 8);
+ my_extractor.PutToLog(log, 0, my_buffer.GetByteSize(),
+ allocation_process_addr, 16,
+ DataExtractor::TypeUInt8);
}
+ }
- return allocation_process_addr;
+ return allocation_process_addr;
}
-void
-IRExecutionUnit::FreeNow (lldb::addr_t allocation)
-{
- if (allocation == LLDB_INVALID_ADDRESS)
- return;
+void IRExecutionUnit::FreeNow(lldb::addr_t allocation) {
+ if (allocation == LLDB_INVALID_ADDRESS)
+ return;
- Error err;
+ Error err;
- Free(allocation, err);
+ Free(allocation, err);
}
-Error
-IRExecutionUnit::DisassembleFunction (Stream &stream,
- lldb::ProcessSP &process_wp)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+Error IRExecutionUnit::DisassembleFunction(Stream &stream,
+ lldb::ProcessSP &process_wp) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- ExecutionContext exe_ctx(process_wp);
+ ExecutionContext exe_ctx(process_wp);
- Error ret;
+ Error ret;
- ret.Clear();
+ ret.Clear();
- lldb::addr_t func_local_addr = LLDB_INVALID_ADDRESS;
- lldb::addr_t func_remote_addr = LLDB_INVALID_ADDRESS;
+ lldb::addr_t func_local_addr = LLDB_INVALID_ADDRESS;
+ lldb::addr_t func_remote_addr = LLDB_INVALID_ADDRESS;
- for (JittedFunction &function : m_jitted_functions)
- {
- if (function.m_name == m_name)
- {
- func_local_addr = function.m_local_addr;
- func_remote_addr = function.m_remote_addr;
- }
+ for (JittedFunction &function : m_jitted_functions) {
+ if (function.m_name == m_name) {
+ func_local_addr = function.m_local_addr;
+ func_remote_addr = function.m_remote_addr;
}
+ }
- if (func_local_addr == LLDB_INVALID_ADDRESS)
- {
- ret.SetErrorToGenericError();
- ret.SetErrorStringWithFormat("Couldn't find function %s for disassembly", m_name.AsCString());
- return ret;
- }
+ if (func_local_addr == LLDB_INVALID_ADDRESS) {
+ ret.SetErrorToGenericError();
+ ret.SetErrorStringWithFormat("Couldn't find function %s for disassembly",
+ m_name.AsCString());
+ return ret;
+ }
- if (log)
- log->Printf("Found function, has local address 0x%" PRIx64 " and remote address 0x%" PRIx64, (uint64_t)func_local_addr, (uint64_t)func_remote_addr);
+ if (log)
+ log->Printf("Found function, has local address 0x%" PRIx64
+ " and remote address 0x%" PRIx64,
+ (uint64_t)func_local_addr, (uint64_t)func_remote_addr);
- std::pair <lldb::addr_t, lldb::addr_t> func_range;
+ std::pair<lldb::addr_t, lldb::addr_t> func_range;
- func_range = GetRemoteRangeForLocal(func_local_addr);
+ func_range = GetRemoteRangeForLocal(func_local_addr);
- if (func_range.first == 0 && func_range.second == 0)
- {
- ret.SetErrorToGenericError();
- ret.SetErrorStringWithFormat("Couldn't find code range for function %s", m_name.AsCString());
- return ret;
- }
+ if (func_range.first == 0 && func_range.second == 0) {
+ ret.SetErrorToGenericError();
+ ret.SetErrorStringWithFormat("Couldn't find code range for function %s",
+ m_name.AsCString());
+ return ret;
+ }
- if (log)
- log->Printf("Function's code range is [0x%" PRIx64 "+0x%" PRIx64 "]", func_range.first, func_range.second);
+ if (log)
+ log->Printf("Function's code range is [0x%" PRIx64 "+0x%" PRIx64 "]",
+ func_range.first, func_range.second);
+
+ Target *target = exe_ctx.GetTargetPtr();
+ if (!target) {
+ ret.SetErrorToGenericError();
+ ret.SetErrorString("Couldn't find the target");
+ return ret;
+ }
- Target *target = exe_ctx.GetTargetPtr();
- if (!target)
- {
- ret.SetErrorToGenericError();
- ret.SetErrorString("Couldn't find the target");
- return ret;
- }
+ lldb::DataBufferSP buffer_sp(new DataBufferHeap(func_range.second, 0));
- lldb::DataBufferSP buffer_sp(new DataBufferHeap(func_range.second, 0));
+ Process *process = exe_ctx.GetProcessPtr();
+ Error err;
+ process->ReadMemory(func_remote_addr, buffer_sp->GetBytes(),
+ buffer_sp->GetByteSize(), err);
+
+ if (!err.Success()) {
+ ret.SetErrorToGenericError();
+ ret.SetErrorStringWithFormat("Couldn't read from process: %s",
+ err.AsCString("unknown error"));
+ return ret;
+ }
- Process *process = exe_ctx.GetProcessPtr();
- Error err;
- process->ReadMemory(func_remote_addr, buffer_sp->GetBytes(), buffer_sp->GetByteSize(), err);
+ ArchSpec arch(target->GetArchitecture());
- if (!err.Success())
- {
- ret.SetErrorToGenericError();
- ret.SetErrorStringWithFormat("Couldn't read from process: %s", err.AsCString("unknown error"));
- return ret;
- }
+ const char *plugin_name = NULL;
+ const char *flavor_string = NULL;
+ lldb::DisassemblerSP disassembler_sp =
+ Disassembler::FindPlugin(arch, flavor_string, plugin_name);
+
+ if (!disassembler_sp) {
+ ret.SetErrorToGenericError();
+ ret.SetErrorStringWithFormat(
+ "Unable to find disassembler plug-in for %s architecture.",
+ arch.GetArchitectureName());
+ return ret;
+ }
- ArchSpec arch(target->GetArchitecture());
+ if (!process) {
+ ret.SetErrorToGenericError();
+ ret.SetErrorString("Couldn't find the process");
+ return ret;
+ }
- const char *plugin_name = NULL;
- const char *flavor_string = NULL;
- lldb::DisassemblerSP disassembler_sp = Disassembler::FindPlugin(arch, flavor_string, plugin_name);
+ DataExtractor extractor(buffer_sp, process->GetByteOrder(),
+ target->GetArchitecture().GetAddressByteSize());
- if (!disassembler_sp)
- {
- ret.SetErrorToGenericError();
- ret.SetErrorStringWithFormat("Unable to find disassembler plug-in for %s architecture.", arch.GetArchitectureName());
- return ret;
- }
+ if (log) {
+ log->Printf("Function data has contents:");
+ extractor.PutToLog(log, 0, extractor.GetByteSize(), func_remote_addr, 16,
+ DataExtractor::TypeUInt8);
+ }
- if (!process)
- {
- ret.SetErrorToGenericError();
- ret.SetErrorString("Couldn't find the process");
- return ret;
- }
+ disassembler_sp->DecodeInstructions(Address(func_remote_addr), extractor, 0,
+ UINT32_MAX, false, false);
- DataExtractor extractor(buffer_sp,
- process->GetByteOrder(),
- target->GetArchitecture().GetAddressByteSize());
+ InstructionList &instruction_list = disassembler_sp->GetInstructionList();
+ instruction_list.Dump(&stream, true, true, &exe_ctx);
+ return ret;
+}
- if (log)
- {
- log->Printf("Function data has contents:");
- extractor.PutToLog (log,
- 0,
- extractor.GetByteSize(),
- func_remote_addr,
- 16,
- DataExtractor::TypeUInt8);
- }
+static void ReportInlineAsmError(const llvm::SMDiagnostic &diagnostic,
+ void *Context, unsigned LocCookie) {
+ Error *err = static_cast<Error *>(Context);
- disassembler_sp->DecodeInstructions (Address (func_remote_addr), extractor, 0, UINT32_MAX, false, false);
+ if (err && err->Success()) {
+ err->SetErrorToGenericError();
+ err->SetErrorStringWithFormat("Inline assembly error: %s",
+ diagnostic.getMessage().str().c_str());
+ }
+}
- InstructionList &instruction_list = disassembler_sp->GetInstructionList();
- instruction_list.Dump(&stream, true, true, &exe_ctx);
- return ret;
+void IRExecutionUnit::ReportSymbolLookupError(const ConstString &name) {
+ m_failed_lookups.push_back(name);
}
-static void ReportInlineAsmError(const llvm::SMDiagnostic &diagnostic, void *Context, unsigned LocCookie)
-{
- Error *err = static_cast<Error*>(Context);
+void IRExecutionUnit::GetRunnableInfo(Error &error, lldb::addr_t &func_addr,
+ lldb::addr_t &func_end) {
+ lldb::ProcessSP process_sp(GetProcessWP().lock());
- if (err && err->Success())
- {
- err->SetErrorToGenericError();
- err->SetErrorStringWithFormat("Inline assembly error: %s", diagnostic.getMessage().str().c_str());
- }
-}
+ static std::recursive_mutex s_runnable_info_mutex;
-void
-IRExecutionUnit::ReportSymbolLookupError(const ConstString &name)
-{
- m_failed_lookups.push_back(name);
-}
+ func_addr = LLDB_INVALID_ADDRESS;
+ func_end = LLDB_INVALID_ADDRESS;
-void
-IRExecutionUnit::GetRunnableInfo(Error &error,
- lldb::addr_t &func_addr,
- lldb::addr_t &func_end)
-{
- lldb::ProcessSP process_sp(GetProcessWP().lock());
+ if (!process_sp) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't write the JIT compiled code into the "
+ "process because the process is invalid");
+ return;
+ }
- static std::recursive_mutex s_runnable_info_mutex;
+ if (m_did_jit) {
+ func_addr = m_function_load_addr;
+ func_end = m_function_end_load_addr;
- func_addr = LLDB_INVALID_ADDRESS;
- func_end = LLDB_INVALID_ADDRESS;
+ return;
+ };
- if (!process_sp)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't write the JIT compiled code into the process because the process is invalid");
- return;
- }
+ std::lock_guard<std::recursive_mutex> guard(s_runnable_info_mutex);
- if (m_did_jit)
- {
- func_addr = m_function_load_addr;
- func_end = m_function_end_load_addr;
+ m_did_jit = true;
- return;
- };
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- std::lock_guard<std::recursive_mutex> guard(s_runnable_info_mutex);
+ std::string error_string;
- m_did_jit = true;
+ if (log) {
+ std::string s;
+ llvm::raw_string_ostream oss(s);
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ m_module->print(oss, NULL);
- std::string error_string;
+ oss.flush();
- if (log)
- {
- std::string s;
- llvm::raw_string_ostream oss(s);
+ log->Printf("Module being sent to JIT: \n%s", s.c_str());
+ }
- m_module->print(oss, NULL);
+ llvm::Triple triple(m_module->getTargetTriple());
+ llvm::Reloc::Model relocModel;
+ llvm::CodeModel::Model codeModel;
- oss.flush();
+ if (triple.isOSBinFormatELF()) {
+ relocModel = llvm::Reloc::Static;
+ } else {
+ relocModel = llvm::Reloc::PIC_;
+ }
- log->Printf ("Module being sent to JIT: \n%s", s.c_str());
- }
+ // This will be small for 32-bit and large for 64-bit.
+ codeModel = llvm::CodeModel::JITDefault;
- llvm::Triple triple(m_module->getTargetTriple());
- llvm::Reloc::Model relocModel;
- llvm::CodeModel::Model codeModel;
+ m_module_ap->getContext().setInlineAsmDiagnosticHandler(ReportInlineAsmError,
+ &error);
- if (triple.isOSBinFormatELF())
- {
- relocModel = llvm::Reloc::Static;
- }
- else
- {
- relocModel = llvm::Reloc::PIC_;
- }
+ llvm::EngineBuilder builder(std::move(m_module_ap));
- // This will be small for 32-bit and large for 64-bit.
- codeModel = llvm::CodeModel::JITDefault;
+ builder.setEngineKind(llvm::EngineKind::JIT)
+ .setErrorStr(&error_string)
+ .setRelocationModel(relocModel)
+ .setMCJITMemoryManager(
+ std::unique_ptr<MemoryManager>(new MemoryManager(*this)))
+ .setCodeModel(codeModel)
+ .setOptLevel(llvm::CodeGenOpt::Less)
+ .setUseOrcMCJITReplacement(true);
- m_module_ap->getContext().setInlineAsmDiagnosticHandler(ReportInlineAsmError, &error);
+ llvm::StringRef mArch;
+ llvm::StringRef mCPU;
+ llvm::SmallVector<std::string, 0> mAttrs;
- llvm::EngineBuilder builder(std::move(m_module_ap));
+ for (std::string &feature : m_cpu_features)
+ mAttrs.push_back(feature);
- builder.setEngineKind(llvm::EngineKind::JIT)
- .setErrorStr(&error_string)
- .setRelocationModel(relocModel)
- .setMCJITMemoryManager(std::unique_ptr<MemoryManager>(new MemoryManager(*this)))
- .setCodeModel(codeModel)
- .setOptLevel(llvm::CodeGenOpt::Less)
- .setUseOrcMCJITReplacement(true);
+ llvm::TargetMachine *target_machine =
+ builder.selectTarget(triple, mArch, mCPU, mAttrs);
- llvm::StringRef mArch;
- llvm::StringRef mCPU;
- llvm::SmallVector<std::string, 0> mAttrs;
+ m_execution_engine_ap.reset(builder.create(target_machine));
- for (std::string &feature : m_cpu_features)
- mAttrs.push_back(feature);
+ m_strip_underscore =
+ (m_execution_engine_ap->getDataLayout().getGlobalPrefix() == '_');
- llvm::TargetMachine *target_machine = builder.selectTarget(triple,
- mArch,
- mCPU,
- mAttrs);
+ if (!m_execution_engine_ap.get()) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("Couldn't JIT the function: %s",
+ error_string.c_str());
+ return;
+ }
- m_execution_engine_ap.reset(builder.create(target_machine));
+ // Make sure we see all sections, including ones that don't have
+ // relocations...
+ m_execution_engine_ap->setProcessAllSections(true);
- m_strip_underscore = (m_execution_engine_ap->getDataLayout().getGlobalPrefix() == '_');
+ m_execution_engine_ap->DisableLazyCompilation();
- if (!m_execution_engine_ap.get())
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("Couldn't JIT the function: %s", error_string.c_str());
- return;
- }
+ for (llvm::Function &function : *m_module) {
+ if (function.isDeclaration() || function.hasPrivateLinkage())
+ continue;
- // Make sure we see all sections, including ones that don't have relocations...
- m_execution_engine_ap->setProcessAllSections(true);
+ const bool external =
+ function.hasExternalLinkage() || function.hasLinkOnceODRLinkage();
- m_execution_engine_ap->DisableLazyCompilation();
+ void *fun_ptr = m_execution_engine_ap->getPointerToFunction(&function);
- for (llvm::Function &function : *m_module)
- {
- if (function.isDeclaration() || function.hasPrivateLinkage())
- continue;
-
- const bool external = function.hasExternalLinkage() || function.hasLinkOnceODRLinkage();
-
- void *fun_ptr = m_execution_engine_ap->getPointerToFunction(&function);
-
- if (!error.Success())
- {
- // We got an error through our callback!
- return;
- }
-
- if (!fun_ptr)
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("'%s' was in the JITted module but wasn't lowered", function.getName().str().c_str());
- return;
- }
- m_jitted_functions.push_back (JittedFunction(function.getName().str().c_str(), external, (lldb::addr_t)fun_ptr));
+ if (!error.Success()) {
+ // We got an error through our callback!
+ return;
}
- CommitAllocations(process_sp);
- ReportAllocations(*m_execution_engine_ap);
-
- // We have to do this after calling ReportAllocations because for the MCJIT, getGlobalValueAddress
- // will cause the JIT to perform all relocations. That can only be done once, and has to happen
- // after we do the remapping from local -> remote.
- // That means we don't know the local address of the Variables, but we don't need that for anything,
- // so that's okay.
-
- std::function<void (llvm::GlobalValue &)> RegisterOneValue = [this] (llvm::GlobalValue &val) {
- if (val.hasExternalLinkage() && !val.isDeclaration())
- {
- uint64_t var_ptr_addr = m_execution_engine_ap->getGlobalValueAddress(val.getName().str());
-
- lldb::addr_t remote_addr = GetRemoteAddressForLocal(var_ptr_addr);
-
- // This is a really unfortunae API that sometimes returns local addresses and sometimes returns remote addresses, based on whether
- // the variable was relocated during ReportAllocations or not.
-
- if (remote_addr == LLDB_INVALID_ADDRESS)
- {
- remote_addr = var_ptr_addr;
- }
-
- if (var_ptr_addr != 0)
- m_jitted_global_variables.push_back (JittedGlobalVariable (val.getName().str().c_str(), LLDB_INVALID_ADDRESS, remote_addr));
- }
- };
-
- for (llvm::GlobalVariable &global_var : m_module->getGlobalList())
- {
- RegisterOneValue(global_var);
- }
-
- for (llvm::GlobalAlias &global_alias : m_module->getAliasList())
- {
- RegisterOneValue(global_alias);
- }
-
- WriteData(process_sp);
-
- if (m_failed_lookups.size())
- {
- StreamString ss;
-
- ss.PutCString("Couldn't lookup symbols:\n");
-
- bool emitNewLine = false;
-
- for (const ConstString &failed_lookup : m_failed_lookups)
- {
- if (emitNewLine)
- ss.PutCString("\n");
- emitNewLine = true;
- ss.PutCString(" ");
- ss.PutCString(Mangled(failed_lookup).GetDemangledName(lldb::eLanguageTypeObjC_plus_plus).AsCString());
- }
+ if (!fun_ptr) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat(
+ "'%s' was in the JITted module but wasn't lowered",
+ function.getName().str().c_str());
+ return;
+ }
+ m_jitted_functions.push_back(JittedFunction(
+ function.getName().str().c_str(), external, (lldb::addr_t)fun_ptr));
+ }
- m_failed_lookups.clear();
+ CommitAllocations(process_sp);
+ ReportAllocations(*m_execution_engine_ap);
- error.SetErrorString(ss.GetData());
+ // We have to do this after calling ReportAllocations because for the MCJIT,
+ // getGlobalValueAddress
+ // will cause the JIT to perform all relocations. That can only be done once,
+ // and has to happen
+ // after we do the remapping from local -> remote.
+ // That means we don't know the local address of the Variables, but we don't
+ // need that for anything,
+ // so that's okay.
- return;
- }
+ std::function<void(llvm::GlobalValue &)> RegisterOneValue = [this](
+ llvm::GlobalValue &val) {
+ if (val.hasExternalLinkage() && !val.isDeclaration()) {
+ uint64_t var_ptr_addr =
+ m_execution_engine_ap->getGlobalValueAddress(val.getName().str());
- m_function_load_addr = LLDB_INVALID_ADDRESS;
- m_function_end_load_addr = LLDB_INVALID_ADDRESS;
+ lldb::addr_t remote_addr = GetRemoteAddressForLocal(var_ptr_addr);
- for (JittedFunction &jitted_function : m_jitted_functions)
- {
- jitted_function.m_remote_addr = GetRemoteAddressForLocal (jitted_function.m_local_addr);
+ // This is a really unfortunae API that sometimes returns local addresses
+ // and sometimes returns remote addresses, based on whether
+ // the variable was relocated during ReportAllocations or not.
- if (!m_name.IsEmpty() && jitted_function.m_name == m_name)
- {
- AddrRange func_range = GetRemoteRangeForLocal(jitted_function.m_local_addr);
- m_function_end_load_addr = func_range.first + func_range.second;
- m_function_load_addr = jitted_function.m_remote_addr;
- }
+ if (remote_addr == LLDB_INVALID_ADDRESS) {
+ remote_addr = var_ptr_addr;
+ }
+
+ if (var_ptr_addr != 0)
+ m_jitted_global_variables.push_back(JittedGlobalVariable(
+ val.getName().str().c_str(), LLDB_INVALID_ADDRESS, remote_addr));
}
+ };
- if (log)
- {
- log->Printf("Code can be run in the target.");
+ for (llvm::GlobalVariable &global_var : m_module->getGlobalList()) {
+ RegisterOneValue(global_var);
+ }
- StreamString disassembly_stream;
+ for (llvm::GlobalAlias &global_alias : m_module->getAliasList()) {
+ RegisterOneValue(global_alias);
+ }
- Error err = DisassembleFunction(disassembly_stream, process_sp);
+ WriteData(process_sp);
- if (!err.Success())
- {
- log->Printf("Couldn't disassemble function : %s", err.AsCString("unknown error"));
- }
- else
- {
- log->Printf("Function disassembly:\n%s", disassembly_stream.GetData());
- }
+ if (m_failed_lookups.size()) {
+ StreamString ss;
- log->Printf("Sections: ");
- for (AllocationRecord &record : m_records)
- {
- if (record.m_process_address != LLDB_INVALID_ADDRESS)
- {
- record.dump(log);
+ ss.PutCString("Couldn't lookup symbols:\n");
- DataBufferHeap my_buffer(record.m_size, 0);
- Error err;
- ReadMemory(my_buffer.GetBytes(), record.m_process_address, record.m_size, err);
-
- if (err.Success())
- {
- DataExtractor my_extractor(my_buffer.GetBytes(), my_buffer.GetByteSize(), lldb::eByteOrderBig, 8);
- my_extractor.PutToLog(log, 0, my_buffer.GetByteSize(), record.m_process_address, 16, DataExtractor::TypeUInt8);
- }
- }
- else
- {
- record.dump(log);
+ bool emitNewLine = false;
- DataExtractor my_extractor ((const void*)record.m_host_address, record.m_size, lldb::eByteOrderBig, 8);
- my_extractor.PutToLog(log, 0, record.m_size, record.m_host_address, 16, DataExtractor::TypeUInt8);
- }
- }
+ for (const ConstString &failed_lookup : m_failed_lookups) {
+ if (emitNewLine)
+ ss.PutCString("\n");
+ emitNewLine = true;
+ ss.PutCString(" ");
+ ss.PutCString(Mangled(failed_lookup)
+ .GetDemangledName(lldb::eLanguageTypeObjC_plus_plus)
+ .AsCString());
}
- func_addr = m_function_load_addr;
- func_end = m_function_end_load_addr;
+ m_failed_lookups.clear();
+
+ error.SetErrorString(ss.GetData());
return;
-}
+ }
-IRExecutionUnit::~IRExecutionUnit ()
-{
- m_module_ap.reset();
- m_execution_engine_ap.reset();
- m_context_ap.reset();
-}
-
-IRExecutionUnit::MemoryManager::MemoryManager (IRExecutionUnit &parent) :
- m_default_mm_ap (new llvm::SectionMemoryManager()),
- m_parent (parent)
-{
-}
-
-IRExecutionUnit::MemoryManager::~MemoryManager ()
-{
-}
-
-lldb::SectionType
-IRExecutionUnit::GetSectionTypeFromSectionName (const llvm::StringRef &name, IRExecutionUnit::AllocationKind alloc_kind)
-{
- lldb::SectionType sect_type = lldb::eSectionTypeCode;
- switch (alloc_kind)
- {
- case AllocationKind::Stub: sect_type = lldb::eSectionTypeCode; break;
- case AllocationKind::Code: sect_type = lldb::eSectionTypeCode; break;
- case AllocationKind::Data: sect_type = lldb::eSectionTypeData; break;
- case AllocationKind::Global:sect_type = lldb::eSectionTypeData; break;
- case AllocationKind::Bytes: sect_type = lldb::eSectionTypeOther; break;
- }
-
- if (!name.empty())
- {
- if (name.equals("__text") || name.equals(".text"))
- sect_type = lldb::eSectionTypeCode;
- else if (name.equals("__data") || name.equals(".data"))
- sect_type = lldb::eSectionTypeCode;
- else if (name.startswith("__debug_") || name.startswith(".debug_"))
- {
- const uint32_t name_idx = name[0] == '_' ? 8 : 7;
- llvm::StringRef dwarf_name(name.substr(name_idx));
- switch (dwarf_name[0])
- {
- case 'a':
- if (dwarf_name.equals("abbrev"))
- sect_type = lldb::eSectionTypeDWARFDebugAbbrev;
- else if (dwarf_name.equals("aranges"))
- sect_type = lldb::eSectionTypeDWARFDebugAranges;
- else if (dwarf_name.equals("addr"))
- sect_type = lldb::eSectionTypeDWARFDebugAddr;
- break;
+ m_function_load_addr = LLDB_INVALID_ADDRESS;
+ m_function_end_load_addr = LLDB_INVALID_ADDRESS;
- case 'f':
- if (dwarf_name.equals("frame"))
- sect_type = lldb::eSectionTypeDWARFDebugFrame;
- break;
+ for (JittedFunction &jitted_function : m_jitted_functions) {
+ jitted_function.m_remote_addr =
+ GetRemoteAddressForLocal(jitted_function.m_local_addr);
- case 'i':
- if (dwarf_name.equals("info"))
- sect_type = lldb::eSectionTypeDWARFDebugInfo;
- break;
+ if (!m_name.IsEmpty() && jitted_function.m_name == m_name) {
+ AddrRange func_range =
+ GetRemoteRangeForLocal(jitted_function.m_local_addr);
+ m_function_end_load_addr = func_range.first + func_range.second;
+ m_function_load_addr = jitted_function.m_remote_addr;
+ }
+ }
- case 'l':
- if (dwarf_name.equals("line"))
- sect_type = lldb::eSectionTypeDWARFDebugLine;
- else if (dwarf_name.equals("loc"))
- sect_type = lldb::eSectionTypeDWARFDebugLoc;
- break;
+ if (log) {
+ log->Printf("Code can be run in the target.");
- case 'm':
- if (dwarf_name.equals("macinfo"))
- sect_type = lldb::eSectionTypeDWARFDebugMacInfo;
- break;
+ StreamString disassembly_stream;
- case 'p':
- if (dwarf_name.equals("pubnames"))
- sect_type = lldb::eSectionTypeDWARFDebugPubNames;
- else if (dwarf_name.equals("pubtypes"))
- sect_type = lldb::eSectionTypeDWARFDebugPubTypes;
- break;
+ Error err = DisassembleFunction(disassembly_stream, process_sp);
- case 's':
- if (dwarf_name.equals("str"))
- sect_type = lldb::eSectionTypeDWARFDebugStr;
- else if (dwarf_name.equals("str_offsets"))
- sect_type = lldb::eSectionTypeDWARFDebugStrOffsets;
- break;
+ if (!err.Success()) {
+ log->Printf("Couldn't disassemble function : %s",
+ err.AsCString("unknown error"));
+ } else {
+ log->Printf("Function disassembly:\n%s", disassembly_stream.GetData());
+ }
- case 'r':
- if (dwarf_name.equals("ranges"))
- sect_type = lldb::eSectionTypeDWARFDebugRanges;
- break;
+ log->Printf("Sections: ");
+ for (AllocationRecord &record : m_records) {
+ if (record.m_process_address != LLDB_INVALID_ADDRESS) {
+ record.dump(log);
- default:
- break;
- }
- }
- else if (name.startswith("__apple_") || name.startswith(".apple_"))
- {
+ DataBufferHeap my_buffer(record.m_size, 0);
+ Error err;
+ ReadMemory(my_buffer.GetBytes(), record.m_process_address,
+ record.m_size, err);
+
+ if (err.Success()) {
+ DataExtractor my_extractor(my_buffer.GetBytes(),
+ my_buffer.GetByteSize(),
+ lldb::eByteOrderBig, 8);
+ my_extractor.PutToLog(log, 0, my_buffer.GetByteSize(),
+ record.m_process_address, 16,
+ DataExtractor::TypeUInt8);
+ }
+ } else {
+ record.dump(log);
+
+ DataExtractor my_extractor((const void *)record.m_host_address,
+ record.m_size, lldb::eByteOrderBig, 8);
+ my_extractor.PutToLog(log, 0, record.m_size, record.m_host_address, 16,
+ DataExtractor::TypeUInt8);
+ }
+ }
+ }
+
+ func_addr = m_function_load_addr;
+ func_end = m_function_end_load_addr;
+
+ return;
+}
+
+IRExecutionUnit::~IRExecutionUnit() {
+ m_module_ap.reset();
+ m_execution_engine_ap.reset();
+ m_context_ap.reset();
+}
+
+IRExecutionUnit::MemoryManager::MemoryManager(IRExecutionUnit &parent)
+ : m_default_mm_ap(new llvm::SectionMemoryManager()), m_parent(parent) {}
+
+IRExecutionUnit::MemoryManager::~MemoryManager() {}
+
+lldb::SectionType IRExecutionUnit::GetSectionTypeFromSectionName(
+ const llvm::StringRef &name, IRExecutionUnit::AllocationKind alloc_kind) {
+ lldb::SectionType sect_type = lldb::eSectionTypeCode;
+ switch (alloc_kind) {
+ case AllocationKind::Stub:
+ sect_type = lldb::eSectionTypeCode;
+ break;
+ case AllocationKind::Code:
+ sect_type = lldb::eSectionTypeCode;
+ break;
+ case AllocationKind::Data:
+ sect_type = lldb::eSectionTypeData;
+ break;
+ case AllocationKind::Global:
+ sect_type = lldb::eSectionTypeData;
+ break;
+ case AllocationKind::Bytes:
+ sect_type = lldb::eSectionTypeOther;
+ break;
+ }
+
+ if (!name.empty()) {
+ if (name.equals("__text") || name.equals(".text"))
+ sect_type = lldb::eSectionTypeCode;
+ else if (name.equals("__data") || name.equals(".data"))
+ sect_type = lldb::eSectionTypeCode;
+ else if (name.startswith("__debug_") || name.startswith(".debug_")) {
+ const uint32_t name_idx = name[0] == '_' ? 8 : 7;
+ llvm::StringRef dwarf_name(name.substr(name_idx));
+ switch (dwarf_name[0]) {
+ case 'a':
+ if (dwarf_name.equals("abbrev"))
+ sect_type = lldb::eSectionTypeDWARFDebugAbbrev;
+ else if (dwarf_name.equals("aranges"))
+ sect_type = lldb::eSectionTypeDWARFDebugAranges;
+ else if (dwarf_name.equals("addr"))
+ sect_type = lldb::eSectionTypeDWARFDebugAddr;
+ break;
+
+ case 'f':
+ if (dwarf_name.equals("frame"))
+ sect_type = lldb::eSectionTypeDWARFDebugFrame;
+ break;
+
+ case 'i':
+ if (dwarf_name.equals("info"))
+ sect_type = lldb::eSectionTypeDWARFDebugInfo;
+ break;
+
+ case 'l':
+ if (dwarf_name.equals("line"))
+ sect_type = lldb::eSectionTypeDWARFDebugLine;
+ else if (dwarf_name.equals("loc"))
+ sect_type = lldb::eSectionTypeDWARFDebugLoc;
+ break;
+
+ case 'm':
+ if (dwarf_name.equals("macinfo"))
+ sect_type = lldb::eSectionTypeDWARFDebugMacInfo;
+ break;
+
+ case 'p':
+ if (dwarf_name.equals("pubnames"))
+ sect_type = lldb::eSectionTypeDWARFDebugPubNames;
+ else if (dwarf_name.equals("pubtypes"))
+ sect_type = lldb::eSectionTypeDWARFDebugPubTypes;
+ break;
+
+ case 's':
+ if (dwarf_name.equals("str"))
+ sect_type = lldb::eSectionTypeDWARFDebugStr;
+ else if (dwarf_name.equals("str_offsets"))
+ sect_type = lldb::eSectionTypeDWARFDebugStrOffsets;
+ break;
+
+ case 'r':
+ if (dwarf_name.equals("ranges"))
+ sect_type = lldb::eSectionTypeDWARFDebugRanges;
+ break;
+
+ default:
+ break;
+ }
+ } else if (name.startswith("__apple_") || name.startswith(".apple_")) {
#if 0
const uint32_t name_idx = name[0] == '_' ? 8 : 7;
llvm::StringRef apple_name(name.substr(name_idx));
@@ -614,776 +587,672 @@ IRExecutionUnit::GetSectionTypeFromSecti
break;
}
#else
- sect_type = lldb::eSectionTypeInvalid;
+ sect_type = lldb::eSectionTypeInvalid;
#endif
- }
- else if (name.equals("__objc_imageinfo"))
- sect_type = lldb::eSectionTypeOther;
- }
- return sect_type;
+ } else if (name.equals("__objc_imageinfo"))
+ sect_type = lldb::eSectionTypeOther;
+ }
+ return sect_type;
+}
+
+uint8_t *IRExecutionUnit::MemoryManager::allocateCodeSection(
+ uintptr_t Size, unsigned Alignment, unsigned SectionID,
+ llvm::StringRef SectionName) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+
+ uint8_t *return_value = m_default_mm_ap->allocateCodeSection(
+ Size, Alignment, SectionID, SectionName);
+
+ m_parent.m_records.push_back(AllocationRecord(
+ (uintptr_t)return_value,
+ lldb::ePermissionsReadable | lldb::ePermissionsExecutable,
+ GetSectionTypeFromSectionName(SectionName, AllocationKind::Code), Size,
+ Alignment, SectionID, SectionName.str().c_str()));
+
+ if (log) {
+ log->Printf("IRExecutionUnit::allocateCodeSection(Size=0x%" PRIx64
+ ", Alignment=%u, SectionID=%u) = %p",
+ (uint64_t)Size, Alignment, SectionID, (void *)return_value);
+ }
+
+ if (m_parent.m_reported_allocations) {
+ Error err;
+ lldb::ProcessSP process_sp =
+ m_parent.GetBestExecutionContextScope()->CalculateProcess();
+
+ m_parent.CommitOneAllocation(process_sp, err, m_parent.m_records.back());
+ }
+
+ return return_value;
}
-uint8_t *
-IRExecutionUnit::MemoryManager::allocateCodeSection(uintptr_t Size,
- unsigned Alignment,
- unsigned SectionID,
- llvm::StringRef SectionName)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- uint8_t *return_value = m_default_mm_ap->allocateCodeSection(Size, Alignment, SectionID, SectionName);
-
- m_parent.m_records.push_back(AllocationRecord((uintptr_t)return_value,
- lldb::ePermissionsReadable | lldb::ePermissionsExecutable,
- GetSectionTypeFromSectionName (SectionName, AllocationKind::Code),
- Size,
- Alignment,
- SectionID,
- SectionName.str().c_str()));
+uint8_t *IRExecutionUnit::MemoryManager::allocateDataSection(
+ uintptr_t Size, unsigned Alignment, unsigned SectionID,
+ llvm::StringRef SectionName, bool IsReadOnly) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+
+ uint8_t *return_value = m_default_mm_ap->allocateDataSection(
+ Size, Alignment, SectionID, SectionName, IsReadOnly);
+
+ uint32_t permissions = lldb::ePermissionsReadable;
+ if (!IsReadOnly)
+ permissions |= lldb::ePermissionsWritable;
+ m_parent.m_records.push_back(AllocationRecord(
+ (uintptr_t)return_value, permissions,
+ GetSectionTypeFromSectionName(SectionName, AllocationKind::Data), Size,
+ Alignment, SectionID, SectionName.str().c_str()));
+ if (log) {
+ log->Printf("IRExecutionUnit::allocateDataSection(Size=0x%" PRIx64
+ ", Alignment=%u, SectionID=%u) = %p",
+ (uint64_t)Size, Alignment, SectionID, (void *)return_value);
+ }
- if (log)
- {
- log->Printf("IRExecutionUnit::allocateCodeSection(Size=0x%" PRIx64 ", Alignment=%u, SectionID=%u) = %p",
- (uint64_t)Size, Alignment, SectionID, (void *)return_value);
- }
-
- if (m_parent.m_reported_allocations)
- {
- Error err;
- lldb::ProcessSP process_sp = m_parent.GetBestExecutionContextScope()->CalculateProcess();
-
- m_parent.CommitOneAllocation(process_sp, err, m_parent.m_records.back());
- }
-
- return return_value;
-}
-
-uint8_t *
-IRExecutionUnit::MemoryManager::allocateDataSection(uintptr_t Size,
- unsigned Alignment,
- unsigned SectionID,
- llvm::StringRef SectionName,
- bool IsReadOnly)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- uint8_t *return_value = m_default_mm_ap->allocateDataSection(Size, Alignment, SectionID, SectionName, IsReadOnly);
-
- uint32_t permissions = lldb::ePermissionsReadable;
- if (!IsReadOnly)
- permissions |= lldb::ePermissionsWritable;
- m_parent.m_records.push_back(AllocationRecord((uintptr_t)return_value,
- permissions,
- GetSectionTypeFromSectionName (SectionName, AllocationKind::Data),
- Size,
- Alignment,
- SectionID,
- SectionName.str().c_str()));
- if (log)
- {
- log->Printf("IRExecutionUnit::allocateDataSection(Size=0x%" PRIx64 ", Alignment=%u, SectionID=%u) = %p",
- (uint64_t)Size, Alignment, SectionID, (void *)return_value);
- }
-
- if (m_parent.m_reported_allocations)
- {
- Error err;
- lldb::ProcessSP process_sp = m_parent.GetBestExecutionContextScope()->CalculateProcess();
-
- m_parent.CommitOneAllocation(process_sp, err, m_parent.m_records.back());
- }
+ if (m_parent.m_reported_allocations) {
+ Error err;
+ lldb::ProcessSP process_sp =
+ m_parent.GetBestExecutionContextScope()->CalculateProcess();
+
+ m_parent.CommitOneAllocation(process_sp, err, m_parent.m_records.back());
+ }
- return return_value;
+ return return_value;
}
static ConstString
FindBestAlternateMangledName(const ConstString &demangled,
const lldb::LanguageType &lang_type,
- const SymbolContext &sym_ctx)
-{
- CPlusPlusLanguage::MethodName cpp_name(demangled);
- std::string scope_qualified_name = cpp_name.GetScopeQualifiedName();
-
- if (!scope_qualified_name.size())
- return ConstString();
-
- if (!sym_ctx.module_sp)
- return ConstString();
-
- SymbolVendor *sym_vendor = sym_ctx.module_sp->GetSymbolVendor();
- if (!sym_vendor)
- return ConstString();
-
- lldb_private::SymbolFile *sym_file = sym_vendor->GetSymbolFile();
- if (!sym_file)
- return ConstString();
-
- std::vector<ConstString> alternates;
- sym_file->GetMangledNamesForFunction(scope_qualified_name, alternates);
-
- std::vector<ConstString> param_and_qual_matches;
- std::vector<ConstString> param_matches;
- for (size_t i = 0; i < alternates.size(); i++)
- {
- ConstString alternate_mangled_name = alternates[i];
- Mangled mangled(alternate_mangled_name, true);
- ConstString demangled = mangled.GetDemangledName(lang_type);
-
- CPlusPlusLanguage::MethodName alternate_cpp_name(demangled);
- if (!cpp_name.IsValid())
- continue;
-
- if (alternate_cpp_name.GetArguments() == cpp_name.GetArguments())
- {
- if (alternate_cpp_name.GetQualifiers() == cpp_name.GetQualifiers())
- param_and_qual_matches.push_back(alternate_mangled_name);
- else
- param_matches.push_back(alternate_mangled_name);
- }
- }
+ const SymbolContext &sym_ctx) {
+ CPlusPlusLanguage::MethodName cpp_name(demangled);
+ std::string scope_qualified_name = cpp_name.GetScopeQualifiedName();
+
+ if (!scope_qualified_name.size())
+ return ConstString();
+
+ if (!sym_ctx.module_sp)
+ return ConstString();
+
+ SymbolVendor *sym_vendor = sym_ctx.module_sp->GetSymbolVendor();
+ if (!sym_vendor)
+ return ConstString();
+
+ lldb_private::SymbolFile *sym_file = sym_vendor->GetSymbolFile();
+ if (!sym_file)
+ return ConstString();
+
+ std::vector<ConstString> alternates;
+ sym_file->GetMangledNamesForFunction(scope_qualified_name, alternates);
+
+ std::vector<ConstString> param_and_qual_matches;
+ std::vector<ConstString> param_matches;
+ for (size_t i = 0; i < alternates.size(); i++) {
+ ConstString alternate_mangled_name = alternates[i];
+ Mangled mangled(alternate_mangled_name, true);
+ ConstString demangled = mangled.GetDemangledName(lang_type);
+
+ CPlusPlusLanguage::MethodName alternate_cpp_name(demangled);
+ if (!cpp_name.IsValid())
+ continue;
+
+ if (alternate_cpp_name.GetArguments() == cpp_name.GetArguments()) {
+ if (alternate_cpp_name.GetQualifiers() == cpp_name.GetQualifiers())
+ param_and_qual_matches.push_back(alternate_mangled_name);
+ else
+ param_matches.push_back(alternate_mangled_name);
+ }
+ }
+
+ if (param_and_qual_matches.size())
+ return param_and_qual_matches[0]; // It is assumed that there will be only
+ // one!
+ else if (param_matches.size())
+ return param_matches[0]; // Return one of them as a best match
+ else
+ return ConstString();
+}
+
+struct IRExecutionUnit::SearchSpec {
+ ConstString name;
+ uint32_t mask;
- if (param_and_qual_matches.size())
- return param_and_qual_matches[0]; // It is assumed that there will be only one!
- else if (param_matches.size())
- return param_matches[0]; // Return one of them as a best match
- else
- return ConstString();
-}
-
-struct IRExecutionUnit::SearchSpec
-{
- ConstString name;
- uint32_t mask;
-
- SearchSpec(ConstString n, uint32_t m = lldb::eFunctionNameTypeFull) :
- name(n),
- mask(m)
- {
- }
+ SearchSpec(ConstString n, uint32_t m = lldb::eFunctionNameTypeFull)
+ : name(n), mask(m) {}
};
-void
-IRExecutionUnit::CollectCandidateCNames(std::vector<IRExecutionUnit::SearchSpec> &C_specs, const ConstString &name)
-{
- if (m_strip_underscore && name.AsCString()[0] == '_')
- C_specs.insert(C_specs.begin(), ConstString(&name.AsCString()[1]));
- C_specs.push_back(SearchSpec(name));
-}
-
-void
-IRExecutionUnit::CollectCandidateCPlusPlusNames(std::vector<IRExecutionUnit::SearchSpec> &CPP_specs, const std::vector<SearchSpec> &C_specs, const SymbolContext &sc)
-{
- for (const SearchSpec &C_spec : C_specs)
- {
- const ConstString &name = C_spec.name;
-
- if (CPlusPlusLanguage::IsCPPMangledName(name.GetCString()))
- {
- Mangled mangled(name, true);
- ConstString demangled = mangled.GetDemangledName(lldb::eLanguageTypeC_plus_plus);
+void IRExecutionUnit::CollectCandidateCNames(
+ std::vector<IRExecutionUnit::SearchSpec> &C_specs,
+ const ConstString &name) {
+ if (m_strip_underscore && name.AsCString()[0] == '_')
+ C_specs.insert(C_specs.begin(), ConstString(&name.AsCString()[1]));
+ C_specs.push_back(SearchSpec(name));
+}
- if (demangled)
- {
- ConstString best_alternate_mangled_name = FindBestAlternateMangledName(demangled, lldb::eLanguageTypeC_plus_plus, sc);
+void IRExecutionUnit::CollectCandidateCPlusPlusNames(
+ std::vector<IRExecutionUnit::SearchSpec> &CPP_specs,
+ const std::vector<SearchSpec> &C_specs, const SymbolContext &sc) {
+ for (const SearchSpec &C_spec : C_specs) {
+ const ConstString &name = C_spec.name;
- if (best_alternate_mangled_name)
- {
- CPP_specs.push_back(best_alternate_mangled_name);
- }
+ if (CPlusPlusLanguage::IsCPPMangledName(name.GetCString())) {
+ Mangled mangled(name, true);
+ ConstString demangled =
+ mangled.GetDemangledName(lldb::eLanguageTypeC_plus_plus);
- CPP_specs.push_back(SearchSpec(demangled, lldb::eFunctionNameTypeFull));
- }
- }
+ if (demangled) {
+ ConstString best_alternate_mangled_name = FindBestAlternateMangledName(
+ demangled, lldb::eLanguageTypeC_plus_plus, sc);
- // Maybe we're looking for a const symbol but the debug info told us it was const...
- if (!strncmp(name.GetCString(), "_ZN", 3) &&
- strncmp(name.GetCString(), "_ZNK", 4))
- {
- std::string fixed_scratch("_ZNK");
- fixed_scratch.append(name.GetCString() + 3);
- CPP_specs.push_back(ConstString(fixed_scratch.c_str()));
+ if (best_alternate_mangled_name) {
+ CPP_specs.push_back(best_alternate_mangled_name);
}
- // Maybe we're looking for a static symbol but we thought it was global...
- if (!strncmp(name.GetCString(), "_Z", 2) &&
- strncmp(name.GetCString(), "_ZL", 3))
- {
- std::string fixed_scratch("_ZL");
- fixed_scratch.append(name.GetCString() + 2);
- CPP_specs.push_back(ConstString(fixed_scratch.c_str()));
- }
+ CPP_specs.push_back(SearchSpec(demangled, lldb::eFunctionNameTypeFull));
+ }
+ }
+ // Maybe we're looking for a const symbol but the debug info told us it was
+ // const...
+ if (!strncmp(name.GetCString(), "_ZN", 3) &&
+ strncmp(name.GetCString(), "_ZNK", 4)) {
+ std::string fixed_scratch("_ZNK");
+ fixed_scratch.append(name.GetCString() + 3);
+ CPP_specs.push_back(ConstString(fixed_scratch.c_str()));
}
-}
-void
-IRExecutionUnit::CollectFallbackNames(std::vector<SearchSpec> &fallback_specs,
- const std::vector<SearchSpec> &C_specs)
-{
- // As a last-ditch fallback, try the base name for C++ names. It's terrible,
- // but the DWARF doesn't always encode "extern C" correctly.
-
- for (const SearchSpec &C_spec : C_specs)
- {
- const ConstString &name = C_spec.name;
-
- if (CPlusPlusLanguage::IsCPPMangledName(name.GetCString()))
- {
- Mangled mangled_name(name);
- ConstString demangled_name = mangled_name.GetDemangledName(lldb::eLanguageTypeC_plus_plus);
- if (!demangled_name.IsEmpty())
- {
- const char *demangled_cstr = demangled_name.AsCString();
- const char *lparen_loc = strchr(demangled_cstr, '(');
- if (lparen_loc)
- {
- llvm::StringRef base_name(demangled_cstr, lparen_loc-demangled_cstr);
- fallback_specs.push_back(ConstString(base_name));
- }
- }
- }
+ // Maybe we're looking for a static symbol but we thought it was global...
+ if (!strncmp(name.GetCString(), "_Z", 2) &&
+ strncmp(name.GetCString(), "_ZL", 3)) {
+ std::string fixed_scratch("_ZL");
+ fixed_scratch.append(name.GetCString() + 2);
+ CPP_specs.push_back(ConstString(fixed_scratch.c_str()));
}
+ }
}
+void IRExecutionUnit::CollectFallbackNames(
+ std::vector<SearchSpec> &fallback_specs,
+ const std::vector<SearchSpec> &C_specs) {
+ // As a last-ditch fallback, try the base name for C++ names. It's terrible,
+ // but the DWARF doesn't always encode "extern C" correctly.
-lldb::addr_t
-IRExecutionUnit::FindInSymbols(const std::vector<IRExecutionUnit::SearchSpec> &specs, const lldb_private::SymbolContext &sc)
-{
- Target *target = sc.target_sp.get();
-
- if (!target)
- {
- // we shouldn't be doing any symbol lookup at all without a target
- return LLDB_INVALID_ADDRESS;
+ for (const SearchSpec &C_spec : C_specs) {
+ const ConstString &name = C_spec.name;
+
+ if (CPlusPlusLanguage::IsCPPMangledName(name.GetCString())) {
+ Mangled mangled_name(name);
+ ConstString demangled_name =
+ mangled_name.GetDemangledName(lldb::eLanguageTypeC_plus_plus);
+ if (!demangled_name.IsEmpty()) {
+ const char *demangled_cstr = demangled_name.AsCString();
+ const char *lparen_loc = strchr(demangled_cstr, '(');
+ if (lparen_loc) {
+ llvm::StringRef base_name(demangled_cstr,
+ lparen_loc - demangled_cstr);
+ fallback_specs.push_back(ConstString(base_name));
+ }
+ }
}
+ }
+}
- for (const SearchSpec &spec : specs)
- {
- SymbolContextList sc_list;
-
- lldb::addr_t best_internal_load_address = LLDB_INVALID_ADDRESS;
-
- std::function<bool (lldb::addr_t &, SymbolContextList &, const lldb_private::SymbolContext &)> get_external_load_address =
- [&best_internal_load_address, target](lldb::addr_t &load_address,
- SymbolContextList &sc_list,
- const lldb_private::SymbolContext &sc) -> lldb::addr_t
- {
- load_address = LLDB_INVALID_ADDRESS;
+lldb::addr_t IRExecutionUnit::FindInSymbols(
+ const std::vector<IRExecutionUnit::SearchSpec> &specs,
+ const lldb_private::SymbolContext &sc) {
+ Target *target = sc.target_sp.get();
- for (size_t si = 0, se = sc_list.GetSize(); si < se; ++si)
- {
- SymbolContext candidate_sc;
+ if (!target) {
+ // we shouldn't be doing any symbol lookup at all without a target
+ return LLDB_INVALID_ADDRESS;
+ }
- sc_list.GetContextAtIndex(si, candidate_sc);
+ for (const SearchSpec &spec : specs) {
+ SymbolContextList sc_list;
- const bool is_external = (candidate_sc.function) ||
- (candidate_sc.symbol && candidate_sc.symbol->IsExternal());
- if (candidate_sc.symbol)
- {
- load_address = candidate_sc.symbol->ResolveCallableAddress(*target);
-
- if (load_address == LLDB_INVALID_ADDRESS)
- {
- if (target->GetProcessSP())
- load_address = candidate_sc.symbol->GetAddress().GetLoadAddress(target);
- else
- load_address = candidate_sc.symbol->GetAddress().GetFileAddress();
- }
- }
+ lldb::addr_t best_internal_load_address = LLDB_INVALID_ADDRESS;
- if (load_address == LLDB_INVALID_ADDRESS && candidate_sc.function)
- {
- if (target->GetProcessSP())
- load_address = candidate_sc.function->GetAddressRange().GetBaseAddress().GetLoadAddress(target);
- else
- load_address = candidate_sc.function->GetAddressRange().GetBaseAddress().GetFileAddress();
- }
+ std::function<bool(lldb::addr_t &, SymbolContextList &,
+ const lldb_private::SymbolContext &)>
+ get_external_load_address = [&best_internal_load_address, target](
+ lldb::addr_t &load_address, SymbolContextList &sc_list,
+ const lldb_private::SymbolContext &sc) -> lldb::addr_t {
+ load_address = LLDB_INVALID_ADDRESS;
+
+ for (size_t si = 0, se = sc_list.GetSize(); si < se; ++si) {
+ SymbolContext candidate_sc;
+
+ sc_list.GetContextAtIndex(si, candidate_sc);
+
+ const bool is_external =
+ (candidate_sc.function) ||
+ (candidate_sc.symbol && candidate_sc.symbol->IsExternal());
+ if (candidate_sc.symbol) {
+ load_address = candidate_sc.symbol->ResolveCallableAddress(*target);
+
+ if (load_address == LLDB_INVALID_ADDRESS) {
+ if (target->GetProcessSP())
+ load_address =
+ candidate_sc.symbol->GetAddress().GetLoadAddress(target);
+ else
+ load_address = candidate_sc.symbol->GetAddress().GetFileAddress();
+ }
+ }
- if (load_address != LLDB_INVALID_ADDRESS)
- {
- if (is_external)
- {
- return true;
- }
- else if (best_internal_load_address == LLDB_INVALID_ADDRESS)
- {
- best_internal_load_address = load_address;
- load_address = LLDB_INVALID_ADDRESS;
- }
- }
- }
+ if (load_address == LLDB_INVALID_ADDRESS && candidate_sc.function) {
+ if (target->GetProcessSP())
+ load_address = candidate_sc.function->GetAddressRange()
+ .GetBaseAddress()
+ .GetLoadAddress(target);
+ else
+ load_address = candidate_sc.function->GetAddressRange()
+ .GetBaseAddress()
+ .GetFileAddress();
+ }
+
+ if (load_address != LLDB_INVALID_ADDRESS) {
+ if (is_external) {
+ return true;
+ } else if (best_internal_load_address == LLDB_INVALID_ADDRESS) {
+ best_internal_load_address = load_address;
+ load_address = LLDB_INVALID_ADDRESS;
+ }
+ }
+ }
- return false;
- };
+ return false;
+ };
- if (sc.module_sp)
- {
- sc.module_sp->FindFunctions(spec.name,
- NULL,
- spec.mask,
- true, // include_symbols
- false, // include_inlines
- true, // append
- sc_list);
- }
+ if (sc.module_sp) {
+ sc.module_sp->FindFunctions(spec.name, NULL, spec.mask,
+ true, // include_symbols
+ false, // include_inlines
+ true, // append
+ sc_list);
+ }
- lldb::addr_t load_address = LLDB_INVALID_ADDRESS;
+ lldb::addr_t load_address = LLDB_INVALID_ADDRESS;
- if (get_external_load_address(load_address, sc_list, sc))
- {
- return load_address;
- }
- else
- {
- sc_list.Clear();
- }
+ if (get_external_load_address(load_address, sc_list, sc)) {
+ return load_address;
+ } else {
+ sc_list.Clear();
+ }
- if (sc_list.GetSize() == 0 && sc.target_sp)
- {
- sc.target_sp->GetImages().FindFunctions(spec.name,
- spec.mask,
- true, // include_symbols
- false, // include_inlines
- true, // append
- sc_list);
- }
+ if (sc_list.GetSize() == 0 && sc.target_sp) {
+ sc.target_sp->GetImages().FindFunctions(spec.name, spec.mask,
+ true, // include_symbols
+ false, // include_inlines
+ true, // append
+ sc_list);
+ }
- if (get_external_load_address(load_address, sc_list, sc))
- {
- return load_address;
- }
- else
- {
- sc_list.Clear();
- }
+ if (get_external_load_address(load_address, sc_list, sc)) {
+ return load_address;
+ } else {
+ sc_list.Clear();
+ }
- if (sc_list.GetSize() == 0 && sc.target_sp)
- {
- sc.target_sp->GetImages().FindSymbolsWithNameAndType(spec.name, lldb::eSymbolTypeAny, sc_list);
- }
+ if (sc_list.GetSize() == 0 && sc.target_sp) {
+ sc.target_sp->GetImages().FindSymbolsWithNameAndType(
+ spec.name, lldb::eSymbolTypeAny, sc_list);
+ }
- if (get_external_load_address(load_address, sc_list, sc))
- {
- return load_address;
- }
- // if there are any searches we try after this, add an sc_list.Clear() in an "else" clause here
+ if (get_external_load_address(load_address, sc_list, sc)) {
+ return load_address;
+ }
+ // if there are any searches we try after this, add an sc_list.Clear() in an
+ // "else" clause here
- if (best_internal_load_address != LLDB_INVALID_ADDRESS)
- {
- return best_internal_load_address;
- }
+ if (best_internal_load_address != LLDB_INVALID_ADDRESS) {
+ return best_internal_load_address;
}
+ }
- return LLDB_INVALID_ADDRESS;
+ return LLDB_INVALID_ADDRESS;
}
lldb::addr_t
-IRExecutionUnit::FindInRuntimes(const std::vector<SearchSpec> &specs, const lldb_private::SymbolContext &sc)
-{
- lldb::TargetSP target_sp = sc.target_sp;
+IRExecutionUnit::FindInRuntimes(const std::vector<SearchSpec> &specs,
+ const lldb_private::SymbolContext &sc) {
+ lldb::TargetSP target_sp = sc.target_sp;
- if (!target_sp)
- {
- return LLDB_INVALID_ADDRESS;
- }
+ if (!target_sp) {
+ return LLDB_INVALID_ADDRESS;
+ }
- lldb::ProcessSP process_sp = sc.target_sp->GetProcessSP();
+ lldb::ProcessSP process_sp = sc.target_sp->GetProcessSP();
- if (!process_sp)
- {
- return LLDB_INVALID_ADDRESS;
- }
+ if (!process_sp) {
+ return LLDB_INVALID_ADDRESS;
+ }
- ObjCLanguageRuntime *runtime = process_sp->GetObjCLanguageRuntime();
+ ObjCLanguageRuntime *runtime = process_sp->GetObjCLanguageRuntime();
- if (runtime)
- {
- for (const SearchSpec &spec : specs)
- {
- lldb::addr_t symbol_load_addr = runtime->LookupRuntimeSymbol(spec.name);
+ if (runtime) {
+ for (const SearchSpec &spec : specs) {
+ lldb::addr_t symbol_load_addr = runtime->LookupRuntimeSymbol(spec.name);
- if (symbol_load_addr != LLDB_INVALID_ADDRESS)
- return symbol_load_addr;
- }
+ if (symbol_load_addr != LLDB_INVALID_ADDRESS)
+ return symbol_load_addr;
}
+ }
- return LLDB_INVALID_ADDRESS;
+ return LLDB_INVALID_ADDRESS;
}
-lldb::addr_t
-IRExecutionUnit::FindInUserDefinedSymbols(const std::vector<SearchSpec> &specs, const lldb_private::SymbolContext &sc)
-{
- lldb::TargetSP target_sp = sc.target_sp;
-
- for (const SearchSpec &spec : specs)
- {
- lldb::addr_t symbol_load_addr = target_sp->GetPersistentSymbol(spec.name);
-
- if (symbol_load_addr != LLDB_INVALID_ADDRESS)
- return symbol_load_addr;
- }
-
- return LLDB_INVALID_ADDRESS;
-}
+lldb::addr_t IRExecutionUnit::FindInUserDefinedSymbols(
+ const std::vector<SearchSpec> &specs,
+ const lldb_private::SymbolContext &sc) {
+ lldb::TargetSP target_sp = sc.target_sp;
-lldb::addr_t
-IRExecutionUnit::FindSymbol(const lldb_private::ConstString &name)
-{
- std::vector<SearchSpec> candidate_C_names;
- std::vector<SearchSpec> candidate_CPlusPlus_names;
-
- CollectCandidateCNames(candidate_C_names, name);
-
- lldb::addr_t ret = FindInSymbols(candidate_C_names, m_sym_ctx);
- if (ret == LLDB_INVALID_ADDRESS)
- ret = FindInRuntimes(candidate_C_names, m_sym_ctx);
-
- if (ret == LLDB_INVALID_ADDRESS)
- ret = FindInUserDefinedSymbols(candidate_C_names, m_sym_ctx);
-
- if (ret == LLDB_INVALID_ADDRESS)
- {
- CollectCandidateCPlusPlusNames(candidate_CPlusPlus_names, candidate_C_names, m_sym_ctx);
- ret = FindInSymbols(candidate_CPlusPlus_names, m_sym_ctx);
- }
-
- if (ret == LLDB_INVALID_ADDRESS)
- {
- std::vector<SearchSpec> candidate_fallback_names;
+ for (const SearchSpec &spec : specs) {
+ lldb::addr_t symbol_load_addr = target_sp->GetPersistentSymbol(spec.name);
- CollectFallbackNames(candidate_fallback_names, candidate_C_names);
- ret = FindInSymbols(candidate_fallback_names, m_sym_ctx);
- }
+ if (symbol_load_addr != LLDB_INVALID_ADDRESS)
+ return symbol_load_addr;
+ }
- return ret;
+ return LLDB_INVALID_ADDRESS;
}
-void
-IRExecutionUnit::GetStaticInitializers(std::vector <lldb::addr_t> &static_initializers)
-{
- if (llvm::GlobalVariable *global_ctors = m_module->getNamedGlobal("llvm.global_ctors"))
- {
- if (llvm::ConstantArray *ctor_array = llvm::dyn_cast<llvm::ConstantArray>(global_ctors->getInitializer()))
- {
- for (llvm::Use &ctor_use : ctor_array->operands())
- {
- if (llvm::ConstantStruct *ctor_struct = llvm::dyn_cast<llvm::ConstantStruct>(ctor_use))
- {
- lldbassert(ctor_struct->getNumOperands() == 3); // this is standardized
- if (llvm::Function *ctor_function = llvm::dyn_cast<llvm::Function>(ctor_struct->getOperand(1)))
- {
- ctor_function->dump();
-
- ConstString ctor_function_name_cs(ctor_function->getName().str());
-
- for (JittedFunction &jitted_function : m_jitted_functions)
- {
- if (ctor_function_name_cs == jitted_function.m_name)
- {
- if (jitted_function.m_remote_addr != LLDB_INVALID_ADDRESS)
- {
- static_initializers.push_back(jitted_function.m_remote_addr);
- }
- break;
- }
- }
- }
+lldb::addr_t
+IRExecutionUnit::FindSymbol(const lldb_private::ConstString &name) {
+ std::vector<SearchSpec> candidate_C_names;
+ std::vector<SearchSpec> candidate_CPlusPlus_names;
+
+ CollectCandidateCNames(candidate_C_names, name);
+
+ lldb::addr_t ret = FindInSymbols(candidate_C_names, m_sym_ctx);
+ if (ret == LLDB_INVALID_ADDRESS)
+ ret = FindInRuntimes(candidate_C_names, m_sym_ctx);
+
+ if (ret == LLDB_INVALID_ADDRESS)
+ ret = FindInUserDefinedSymbols(candidate_C_names, m_sym_ctx);
+
+ if (ret == LLDB_INVALID_ADDRESS) {
+ CollectCandidateCPlusPlusNames(candidate_CPlusPlus_names, candidate_C_names,
+ m_sym_ctx);
+ ret = FindInSymbols(candidate_CPlusPlus_names, m_sym_ctx);
+ }
+
+ if (ret == LLDB_INVALID_ADDRESS) {
+ std::vector<SearchSpec> candidate_fallback_names;
+
+ CollectFallbackNames(candidate_fallback_names, candidate_C_names);
+ ret = FindInSymbols(candidate_fallback_names, m_sym_ctx);
+ }
+
+ return ret;
+}
+
+void IRExecutionUnit::GetStaticInitializers(
+ std::vector<lldb::addr_t> &static_initializers) {
+ if (llvm::GlobalVariable *global_ctors =
+ m_module->getNamedGlobal("llvm.global_ctors")) {
+ if (llvm::ConstantArray *ctor_array = llvm::dyn_cast<llvm::ConstantArray>(
+ global_ctors->getInitializer())) {
+ for (llvm::Use &ctor_use : ctor_array->operands()) {
+ if (llvm::ConstantStruct *ctor_struct =
+ llvm::dyn_cast<llvm::ConstantStruct>(ctor_use)) {
+ lldbassert(ctor_struct->getNumOperands() ==
+ 3); // this is standardized
+ if (llvm::Function *ctor_function =
+ llvm::dyn_cast<llvm::Function>(ctor_struct->getOperand(1))) {
+ ctor_function->dump();
+
+ ConstString ctor_function_name_cs(ctor_function->getName().str());
+
+ for (JittedFunction &jitted_function : m_jitted_functions) {
+ if (ctor_function_name_cs == jitted_function.m_name) {
+ if (jitted_function.m_remote_addr != LLDB_INVALID_ADDRESS) {
+ static_initializers.push_back(jitted_function.m_remote_addr);
}
+ break;
+ }
}
+ }
}
+ }
}
+ }
}
uint64_t
-IRExecutionUnit::MemoryManager::getSymbolAddress(const std::string &Name)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- ConstString name_cs(Name.c_str());
+IRExecutionUnit::MemoryManager::getSymbolAddress(const std::string &Name) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- lldb::addr_t ret = m_parent.FindSymbol(name_cs);
+ ConstString name_cs(Name.c_str());
- if (ret == LLDB_INVALID_ADDRESS)
- {
- if (log)
- log->Printf("IRExecutionUnit::getSymbolAddress(Name=\"%s\") = <not found>",
- Name.c_str());
+ lldb::addr_t ret = m_parent.FindSymbol(name_cs);
- m_parent.ReportSymbolLookupError(name_cs);
- return 0xbad0bad0;
- }
- else
- {
- if (log)
- log->Printf("IRExecutionUnit::getSymbolAddress(Name=\"%s\") = %" PRIx64,
- Name.c_str(),
- ret);
- return ret;
- }
+ if (ret == LLDB_INVALID_ADDRESS) {
+ if (log)
+ log->Printf(
+ "IRExecutionUnit::getSymbolAddress(Name=\"%s\") = <not found>",
+ Name.c_str());
+
+ m_parent.ReportSymbolLookupError(name_cs);
+ return 0xbad0bad0;
+ } else {
+ if (log)
+ log->Printf("IRExecutionUnit::getSymbolAddress(Name=\"%s\") = %" PRIx64,
+ Name.c_str(), ret);
+ return ret;
+ }
}
-void *
-IRExecutionUnit::MemoryManager::getPointerToNamedFunction(const std::string &Name,
- bool AbortOnFailure) {
- assert (sizeof(void *) == 8);
+void *IRExecutionUnit::MemoryManager::getPointerToNamedFunction(
+ const std::string &Name, bool AbortOnFailure) {
+ assert(sizeof(void *) == 8);
- return (void*)getSymbolAddress(Name);
+ return (void *)getSymbolAddress(Name);
}
lldb::addr_t
-IRExecutionUnit::GetRemoteAddressForLocal (lldb::addr_t local_address)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- for (AllocationRecord &record : m_records)
- {
- if (local_address >= record.m_host_address &&
- local_address < record.m_host_address + record.m_size)
- {
- if (record.m_process_address == LLDB_INVALID_ADDRESS)
- return LLDB_INVALID_ADDRESS;
+IRExecutionUnit::GetRemoteAddressForLocal(lldb::addr_t local_address) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- lldb::addr_t ret = record.m_process_address + (local_address - record.m_host_address);
+ for (AllocationRecord &record : m_records) {
+ if (local_address >= record.m_host_address &&
+ local_address < record.m_host_address + record.m_size) {
+ if (record.m_process_address == LLDB_INVALID_ADDRESS)
+ return LLDB_INVALID_ADDRESS;
- if (log)
- {
- log->Printf("IRExecutionUnit::GetRemoteAddressForLocal() found 0x%" PRIx64 " in [0x%" PRIx64 "..0x%" PRIx64 "], and returned 0x%" PRIx64 " from [0x%" PRIx64 "..0x%" PRIx64 "].",
- local_address,
- (uint64_t)record.m_host_address,
- (uint64_t)record.m_host_address + (uint64_t)record.m_size,
- ret,
- record.m_process_address,
- record.m_process_address + record.m_size);
- }
+ lldb::addr_t ret =
+ record.m_process_address + (local_address - record.m_host_address);
- return ret;
- }
+ if (log) {
+ log->Printf(
+ "IRExecutionUnit::GetRemoteAddressForLocal() found 0x%" PRIx64
+ " in [0x%" PRIx64 "..0x%" PRIx64 "], and returned 0x%" PRIx64
+ " from [0x%" PRIx64 "..0x%" PRIx64 "].",
+ local_address, (uint64_t)record.m_host_address,
+ (uint64_t)record.m_host_address + (uint64_t)record.m_size, ret,
+ record.m_process_address, record.m_process_address + record.m_size);
+ }
+
+ return ret;
}
+ }
- return LLDB_INVALID_ADDRESS;
+ return LLDB_INVALID_ADDRESS;
}
IRExecutionUnit::AddrRange
-IRExecutionUnit::GetRemoteRangeForLocal (lldb::addr_t local_address)
-{
- for (AllocationRecord &record : m_records)
- {
- if (local_address >= record.m_host_address &&
- local_address < record.m_host_address + record.m_size)
- {
- if (record.m_process_address == LLDB_INVALID_ADDRESS)
- return AddrRange(0, 0);
-
- return AddrRange(record.m_process_address, record.m_size);
- }
- }
+IRExecutionUnit::GetRemoteRangeForLocal(lldb::addr_t local_address) {
+ for (AllocationRecord &record : m_records) {
+ if (local_address >= record.m_host_address &&
+ local_address < record.m_host_address + record.m_size) {
+ if (record.m_process_address == LLDB_INVALID_ADDRESS)
+ return AddrRange(0, 0);
+
+ return AddrRange(record.m_process_address, record.m_size);
+ }
+ }
+
+ return AddrRange(0, 0);
+}
+
+bool IRExecutionUnit::CommitOneAllocation(lldb::ProcessSP &process_sp,
+ Error &error,
+ AllocationRecord &record) {
+ if (record.m_process_address != LLDB_INVALID_ADDRESS) {
+ return true;
+ }
+
+ switch (record.m_sect_type) {
+ case lldb::eSectionTypeInvalid:
+ case lldb::eSectionTypeDWARFDebugAbbrev:
+ case lldb::eSectionTypeDWARFDebugAddr:
+ case lldb::eSectionTypeDWARFDebugAranges:
+ case lldb::eSectionTypeDWARFDebugFrame:
+ case lldb::eSectionTypeDWARFDebugInfo:
+ case lldb::eSectionTypeDWARFDebugLine:
+ case lldb::eSectionTypeDWARFDebugLoc:
+ case lldb::eSectionTypeDWARFDebugMacInfo:
+ case lldb::eSectionTypeDWARFDebugPubNames:
+ case lldb::eSectionTypeDWARFDebugPubTypes:
+ case lldb::eSectionTypeDWARFDebugRanges:
+ case lldb::eSectionTypeDWARFDebugStr:
+ case lldb::eSectionTypeDWARFDebugStrOffsets:
+ case lldb::eSectionTypeDWARFAppleNames:
+ case lldb::eSectionTypeDWARFAppleTypes:
+ case lldb::eSectionTypeDWARFAppleNamespaces:
+ case lldb::eSectionTypeDWARFAppleObjC:
+ error.Clear();
+ break;
+ default:
+ const bool zero_memory = false;
+ record.m_process_address =
+ Malloc(record.m_size, record.m_alignment, record.m_permissions,
+ eAllocationPolicyProcessOnly, zero_memory, error);
+ break;
+ }
- return AddrRange (0, 0);
+ return error.Success();
}
-bool
-IRExecutionUnit::CommitOneAllocation (lldb::ProcessSP &process_sp,
- Error &error,
- AllocationRecord &record)
-{
- if (record.m_process_address != LLDB_INVALID_ADDRESS)
- {
- return true;
- }
-
- switch (record.m_sect_type)
- {
- case lldb::eSectionTypeInvalid:
- case lldb::eSectionTypeDWARFDebugAbbrev:
- case lldb::eSectionTypeDWARFDebugAddr:
- case lldb::eSectionTypeDWARFDebugAranges:
- case lldb::eSectionTypeDWARFDebugFrame:
- case lldb::eSectionTypeDWARFDebugInfo:
- case lldb::eSectionTypeDWARFDebugLine:
- case lldb::eSectionTypeDWARFDebugLoc:
- case lldb::eSectionTypeDWARFDebugMacInfo:
- case lldb::eSectionTypeDWARFDebugPubNames:
- case lldb::eSectionTypeDWARFDebugPubTypes:
- case lldb::eSectionTypeDWARFDebugRanges:
- case lldb::eSectionTypeDWARFDebugStr:
- case lldb::eSectionTypeDWARFDebugStrOffsets:
- case lldb::eSectionTypeDWARFAppleNames:
- case lldb::eSectionTypeDWARFAppleTypes:
- case lldb::eSectionTypeDWARFAppleNamespaces:
- case lldb::eSectionTypeDWARFAppleObjC:
- error.Clear();
- break;
- default:
- const bool zero_memory = false;
- record.m_process_address = Malloc (record.m_size,
- record.m_alignment,
- record.m_permissions,
- eAllocationPolicyProcessOnly,
- zero_memory,
- error);
- break;
- }
-
- return error.Success();
-}
-
-bool
-IRExecutionUnit::CommitAllocations (lldb::ProcessSP &process_sp)
-{
- bool ret = true;
-
- lldb_private::Error err;
-
- for (AllocationRecord &record : m_records)
- {
- ret = CommitOneAllocation(process_sp, err, record);
-
- if (!ret)
- {
- break;
- }
+bool IRExecutionUnit::CommitAllocations(lldb::ProcessSP &process_sp) {
+ bool ret = true;
+
+ lldb_private::Error err;
+
+ for (AllocationRecord &record : m_records) {
+ ret = CommitOneAllocation(process_sp, err, record);
+
+ if (!ret) {
+ break;
}
+ }
- if (!ret)
- {
- for (AllocationRecord &record : m_records)
- {
- if (record.m_process_address != LLDB_INVALID_ADDRESS)
- {
- Free(record.m_process_address, err);
- record.m_process_address = LLDB_INVALID_ADDRESS;
- }
- }
+ if (!ret) {
+ for (AllocationRecord &record : m_records) {
+ if (record.m_process_address != LLDB_INVALID_ADDRESS) {
+ Free(record.m_process_address, err);
+ record.m_process_address = LLDB_INVALID_ADDRESS;
+ }
}
+ }
- return ret;
+ return ret;
}
-void
-IRExecutionUnit::ReportAllocations (llvm::ExecutionEngine &engine)
-{
- m_reported_allocations = true;
-
- for (AllocationRecord &record : m_records)
- {
- if (record.m_process_address == LLDB_INVALID_ADDRESS)
- continue;
-
- if (record.m_section_id == eSectionIDInvalid)
- continue;
-
- engine.mapSectionAddress((void*)record.m_host_address, record.m_process_address);
- }
-
- // Trigger re-application of relocations.
- engine.finalizeObject();
-}
-
-bool
-IRExecutionUnit::WriteData (lldb::ProcessSP &process_sp)
-{
- bool wrote_something = false;
- for (AllocationRecord &record : m_records)
- {
- if (record.m_process_address != LLDB_INVALID_ADDRESS)
- {
- lldb_private::Error err;
- WriteMemory (record.m_process_address, (uint8_t*)record.m_host_address, record.m_size, err);
- if (err.Success())
- wrote_something = true;
- }
- }
- return wrote_something;
-}
+void IRExecutionUnit::ReportAllocations(llvm::ExecutionEngine &engine) {
+ m_reported_allocations = true;
-void
-IRExecutionUnit::AllocationRecord::dump (Log *log)
-{
- if (!log)
- return;
-
- log->Printf("[0x%llx+0x%llx]->0x%llx (alignment %d, section ID %d, name %s)",
- (unsigned long long)m_host_address,
- (unsigned long long)m_size,
- (unsigned long long)m_process_address,
- (unsigned)m_alignment,
- (unsigned)m_section_id,
- m_name.c_str());
-}
+ for (AllocationRecord &record : m_records) {
+ if (record.m_process_address == LLDB_INVALID_ADDRESS)
+ continue;
+ if (record.m_section_id == eSectionIDInvalid)
+ continue;
-lldb::ByteOrder
-IRExecutionUnit::GetByteOrder () const
-{
- ExecutionContext exe_ctx (GetBestExecutionContextScope());
- return exe_ctx.GetByteOrder();
-}
-
-uint32_t
-IRExecutionUnit::GetAddressByteSize () const
-{
- ExecutionContext exe_ctx (GetBestExecutionContextScope());
- return exe_ctx.GetAddressByteSize();
-}
-
-void
-IRExecutionUnit::PopulateSymtab (lldb_private::ObjectFile *obj_file,
- lldb_private::Symtab &symtab)
-{
- // No symbols yet...
-}
+ engine.mapSectionAddress((void *)record.m_host_address,
+ record.m_process_address);
+ }
+ // Trigger re-application of relocations.
+ engine.finalizeObject();
+}
-void
-IRExecutionUnit::PopulateSectionList (lldb_private::ObjectFile *obj_file,
- lldb_private::SectionList §ion_list)
-{
- for (AllocationRecord &record : m_records)
- {
- if (record.m_size > 0)
- {
- lldb::SectionSP section_sp (new lldb_private::Section (obj_file->GetModule(),
- obj_file,
- record.m_section_id,
- ConstString(record.m_name),
- record.m_sect_type,
- record.m_process_address,
- record.m_size,
- record.m_host_address, // file_offset (which is the host address for the data)
- record.m_size, // file_size
- 0,
- record.m_permissions)); // flags
- section_list.AddSection (section_sp);
- }
+bool IRExecutionUnit::WriteData(lldb::ProcessSP &process_sp) {
+ bool wrote_something = false;
+ for (AllocationRecord &record : m_records) {
+ if (record.m_process_address != LLDB_INVALID_ADDRESS) {
+ lldb_private::Error err;
+ WriteMemory(record.m_process_address, (uint8_t *)record.m_host_address,
+ record.m_size, err);
+ if (err.Success())
+ wrote_something = true;
}
+ }
+ return wrote_something;
}
-bool
-IRExecutionUnit::GetArchitecture (lldb_private::ArchSpec &arch)
-{
- ExecutionContext exe_ctx (GetBestExecutionContextScope());
- Target *target = exe_ctx.GetTargetPtr();
- if (target)
- arch = target->GetArchitecture();
- else
- arch.Clear();
- return arch.IsValid();
-}
-
-lldb::ModuleSP
-IRExecutionUnit::GetJITModule ()
-{
- ExecutionContext exe_ctx (GetBestExecutionContextScope());
- Target *target = exe_ctx.GetTargetPtr();
- if (target)
- {
- lldb::ModuleSP jit_module_sp = lldb_private::Module::CreateJITModule (std::static_pointer_cast<lldb_private::ObjectFileJITDelegate>(shared_from_this()));
- if (jit_module_sp)
- {
- bool changed = false;
- jit_module_sp->SetLoadAddress(*target, 0, true, changed);
- }
- return jit_module_sp;
- }
- return lldb::ModuleSP();
+void IRExecutionUnit::AllocationRecord::dump(Log *log) {
+ if (!log)
+ return;
+
+ log->Printf("[0x%llx+0x%llx]->0x%llx (alignment %d, section ID %d, name %s)",
+ (unsigned long long)m_host_address, (unsigned long long)m_size,
+ (unsigned long long)m_process_address, (unsigned)m_alignment,
+ (unsigned)m_section_id, m_name.c_str());
+}
+
+lldb::ByteOrder IRExecutionUnit::GetByteOrder() const {
+ ExecutionContext exe_ctx(GetBestExecutionContextScope());
+ return exe_ctx.GetByteOrder();
+}
+
+uint32_t IRExecutionUnit::GetAddressByteSize() const {
+ ExecutionContext exe_ctx(GetBestExecutionContextScope());
+ return exe_ctx.GetAddressByteSize();
+}
+
+void IRExecutionUnit::PopulateSymtab(lldb_private::ObjectFile *obj_file,
+ lldb_private::Symtab &symtab) {
+ // No symbols yet...
+}
+
+void IRExecutionUnit::PopulateSectionList(
+ lldb_private::ObjectFile *obj_file,
+ lldb_private::SectionList §ion_list) {
+ for (AllocationRecord &record : m_records) {
+ if (record.m_size > 0) {
+ lldb::SectionSP section_sp(new lldb_private::Section(
+ obj_file->GetModule(), obj_file, record.m_section_id,
+ ConstString(record.m_name), record.m_sect_type,
+ record.m_process_address, record.m_size,
+ record.m_host_address, // file_offset (which is the host address for
+ // the data)
+ record.m_size, // file_size
+ 0,
+ record.m_permissions)); // flags
+ section_list.AddSection(section_sp);
+ }
+ }
+}
+
+bool IRExecutionUnit::GetArchitecture(lldb_private::ArchSpec &arch) {
+ ExecutionContext exe_ctx(GetBestExecutionContextScope());
+ Target *target = exe_ctx.GetTargetPtr();
+ if (target)
+ arch = target->GetArchitecture();
+ else
+ arch.Clear();
+ return arch.IsValid();
+}
+
+lldb::ModuleSP IRExecutionUnit::GetJITModule() {
+ ExecutionContext exe_ctx(GetBestExecutionContextScope());
+ Target *target = exe_ctx.GetTargetPtr();
+ if (target) {
+ lldb::ModuleSP jit_module_sp = lldb_private::Module::CreateJITModule(
+ std::static_pointer_cast<lldb_private::ObjectFileJITDelegate>(
+ shared_from_this()));
+ if (jit_module_sp) {
+ bool changed = false;
+ jit_module_sp->SetLoadAddress(*target, 0, true, changed);
+ }
+ return jit_module_sp;
+ }
+ return lldb::ModuleSP();
}
Modified: lldb/trunk/source/Expression/IRInterpreter.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/IRInterpreter.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/IRInterpreter.cpp (original)
+++ lldb/trunk/source/Expression/IRInterpreter.cpp Tue Sep 6 15:57:50 2016
@@ -43,1801 +43,1665 @@
using namespace llvm;
-static std::string
-PrintValue(const Value *value, bool truncate = false)
-{
- std::string s;
- raw_string_ostream rso(s);
- value->print(rso);
- rso.flush();
- if (truncate)
- s.resize(s.length() - 1);
-
- size_t offset;
- while ((offset = s.find('\n')) != s.npos)
- s.erase(offset, 1);
- while (s[0] == ' ' || s[0] == '\t')
- s.erase(0, 1);
+static std::string PrintValue(const Value *value, bool truncate = false) {
+ std::string s;
+ raw_string_ostream rso(s);
+ value->print(rso);
+ rso.flush();
+ if (truncate)
+ s.resize(s.length() - 1);
+
+ size_t offset;
+ while ((offset = s.find('\n')) != s.npos)
+ s.erase(offset, 1);
+ while (s[0] == ' ' || s[0] == '\t')
+ s.erase(0, 1);
- return s;
+ return s;
}
-static std::string
-PrintType(const Type *type, bool truncate = false)
-{
- std::string s;
- raw_string_ostream rso(s);
- type->print(rso);
- rso.flush();
- if (truncate)
- s.resize(s.length() - 1);
- return s;
+static std::string PrintType(const Type *type, bool truncate = false) {
+ std::string s;
+ raw_string_ostream rso(s);
+ type->print(rso);
+ rso.flush();
+ if (truncate)
+ s.resize(s.length() - 1);
+ return s;
}
-static bool
-CanIgnoreCall (const CallInst *call)
-{
- const llvm::Function *called_function = call->getCalledFunction();
+static bool CanIgnoreCall(const CallInst *call) {
+ const llvm::Function *called_function = call->getCalledFunction();
- if (!called_function)
- return false;
+ if (!called_function)
+ return false;
- if (called_function->isIntrinsic())
- {
- switch (called_function->getIntrinsicID())
- {
- default:
- break;
- case llvm::Intrinsic::dbg_declare:
- case llvm::Intrinsic::dbg_value:
- return true;
- }
+ if (called_function->isIntrinsic()) {
+ switch (called_function->getIntrinsicID()) {
+ default:
+ break;
+ case llvm::Intrinsic::dbg_declare:
+ case llvm::Intrinsic::dbg_value:
+ return true;
}
+ }
- return false;
+ return false;
}
-class InterpreterStackFrame
-{
+class InterpreterStackFrame {
public:
- typedef std::map <const Value*, lldb::addr_t> ValueMap;
+ typedef std::map<const Value *, lldb::addr_t> ValueMap;
- ValueMap m_values;
- DataLayout &m_target_data;
- lldb_private::IRExecutionUnit &m_execution_unit;
- const BasicBlock *m_bb;
- const BasicBlock *m_prev_bb;
- BasicBlock::const_iterator m_ii;
- BasicBlock::const_iterator m_ie;
-
- lldb::addr_t m_frame_process_address;
- size_t m_frame_size;
- lldb::addr_t m_stack_pointer;
-
- lldb::ByteOrder m_byte_order;
- size_t m_addr_byte_size;
-
- InterpreterStackFrame (DataLayout &target_data,
- lldb_private::IRExecutionUnit &execution_unit,
- lldb::addr_t stack_frame_bottom,
- lldb::addr_t stack_frame_top) :
- m_target_data (target_data),
- m_execution_unit (execution_unit),
- m_bb (nullptr),
- m_prev_bb (nullptr)
- {
- m_byte_order = (target_data.isLittleEndian() ? lldb::eByteOrderLittle : lldb::eByteOrderBig);
- m_addr_byte_size = (target_data.getPointerSize(0));
-
- m_frame_process_address = stack_frame_bottom;
- m_frame_size = stack_frame_top - stack_frame_bottom;
- m_stack_pointer = stack_frame_top;
+ ValueMap m_values;
+ DataLayout &m_target_data;
+ lldb_private::IRExecutionUnit &m_execution_unit;
+ const BasicBlock *m_bb;
+ const BasicBlock *m_prev_bb;
+ BasicBlock::const_iterator m_ii;
+ BasicBlock::const_iterator m_ie;
+
+ lldb::addr_t m_frame_process_address;
+ size_t m_frame_size;
+ lldb::addr_t m_stack_pointer;
+
+ lldb::ByteOrder m_byte_order;
+ size_t m_addr_byte_size;
+
+ InterpreterStackFrame(DataLayout &target_data,
+ lldb_private::IRExecutionUnit &execution_unit,
+ lldb::addr_t stack_frame_bottom,
+ lldb::addr_t stack_frame_top)
+ : m_target_data(target_data), m_execution_unit(execution_unit),
+ m_bb(nullptr), m_prev_bb(nullptr) {
+ m_byte_order = (target_data.isLittleEndian() ? lldb::eByteOrderLittle
+ : lldb::eByteOrderBig);
+ m_addr_byte_size = (target_data.getPointerSize(0));
+
+ m_frame_process_address = stack_frame_bottom;
+ m_frame_size = stack_frame_top - stack_frame_bottom;
+ m_stack_pointer = stack_frame_top;
+ }
+
+ ~InterpreterStackFrame() {}
+
+ void Jump(const BasicBlock *bb) {
+ m_prev_bb = m_bb;
+ m_bb = bb;
+ m_ii = m_bb->begin();
+ m_ie = m_bb->end();
+ }
+
+ std::string SummarizeValue(const Value *value) {
+ lldb_private::StreamString ss;
+
+ ss.Printf("%s", PrintValue(value).c_str());
+
+ ValueMap::iterator i = m_values.find(value);
+
+ if (i != m_values.end()) {
+ lldb::addr_t addr = i->second;
+
+ ss.Printf(" 0x%llx", (unsigned long long)addr);
+ }
+
+ return ss.GetString();
+ }
+
+ bool AssignToMatchType(lldb_private::Scalar &scalar, uint64_t u64value,
+ Type *type) {
+ size_t type_size = m_target_data.getTypeStoreSize(type);
+
+ switch (type_size) {
+ case 1:
+ scalar = (uint8_t)u64value;
+ break;
+ case 2:
+ scalar = (uint16_t)u64value;
+ break;
+ case 4:
+ scalar = (uint32_t)u64value;
+ break;
+ case 8:
+ scalar = (uint64_t)u64value;
+ break;
+ default:
+ return false;
}
- ~InterpreterStackFrame ()
- {
- }
+ return true;
+ }
- void Jump (const BasicBlock *bb)
- {
- m_prev_bb = m_bb;
- m_bb = bb;
- m_ii = m_bb->begin();
- m_ie = m_bb->end();
- }
+ bool EvaluateValue(lldb_private::Scalar &scalar, const Value *value,
+ Module &module) {
+ const Constant *constant = dyn_cast<Constant>(value);
- std::string SummarizeValue (const Value *value)
- {
- lldb_private::StreamString ss;
+ if (constant) {
+ APInt value_apint;
- ss.Printf("%s", PrintValue(value).c_str());
+ if (!ResolveConstantValue(value_apint, constant))
+ return false;
- ValueMap::iterator i = m_values.find(value);
+ return AssignToMatchType(scalar, value_apint.getLimitedValue(),
+ value->getType());
+ } else {
+ lldb::addr_t process_address = ResolveValue(value, module);
+ size_t value_size = m_target_data.getTypeStoreSize(value->getType());
- if (i != m_values.end())
- {
- lldb::addr_t addr = i->second;
+ lldb_private::DataExtractor value_extractor;
+ lldb_private::Error extract_error;
- ss.Printf(" 0x%llx", (unsigned long long)addr);
- }
+ m_execution_unit.GetMemoryData(value_extractor, process_address,
+ value_size, extract_error);
- return ss.GetString();
+ if (!extract_error.Success())
+ return false;
+
+ lldb::offset_t offset = 0;
+ if (value_size == 1 || value_size == 2 || value_size == 4 ||
+ value_size == 8) {
+ uint64_t u64value = value_extractor.GetMaxU64(&offset, value_size);
+ return AssignToMatchType(scalar, u64value, value->getType());
+ }
}
- bool AssignToMatchType (lldb_private::Scalar &scalar, uint64_t u64value, Type *type)
- {
- size_t type_size = m_target_data.getTypeStoreSize(type);
+ return false;
+ }
- switch (type_size)
- {
- case 1:
- scalar = (uint8_t)u64value;
- break;
- case 2:
- scalar = (uint16_t)u64value;
- break;
- case 4:
- scalar = (uint32_t)u64value;
- break;
- case 8:
- scalar = (uint64_t)u64value;
- break;
+ bool AssignValue(const Value *value, lldb_private::Scalar &scalar,
+ Module &module) {
+ lldb::addr_t process_address = ResolveValue(value, module);
+
+ if (process_address == LLDB_INVALID_ADDRESS)
+ return false;
+
+ lldb_private::Scalar cast_scalar;
+
+ if (!AssignToMatchType(cast_scalar, scalar.ULongLong(), value->getType()))
+ return false;
+
+ size_t value_byte_size = m_target_data.getTypeStoreSize(value->getType());
+
+ lldb_private::DataBufferHeap buf(value_byte_size, 0);
+
+ lldb_private::Error get_data_error;
+
+ if (!cast_scalar.GetAsMemoryData(buf.GetBytes(), buf.GetByteSize(),
+ m_byte_order, get_data_error))
+ return false;
+
+ lldb_private::Error write_error;
+
+ m_execution_unit.WriteMemory(process_address, buf.GetBytes(),
+ buf.GetByteSize(), write_error);
+
+ return write_error.Success();
+ }
+
+ bool ResolveConstantValue(APInt &value, const Constant *constant) {
+ switch (constant->getValueID()) {
+ default:
+ break;
+ case Value::FunctionVal:
+ if (const Function *constant_func = dyn_cast<Function>(constant)) {
+ lldb_private::ConstString name(constant_func->getName());
+ lldb::addr_t addr = m_execution_unit.FindSymbol(name);
+ if (addr == LLDB_INVALID_ADDRESS)
+ return false;
+ value = APInt(m_target_data.getPointerSizeInBits(), addr);
+ return true;
+ }
+ break;
+ case Value::ConstantIntVal:
+ if (const ConstantInt *constant_int = dyn_cast<ConstantInt>(constant)) {
+ value = constant_int->getValue();
+ return true;
+ }
+ break;
+ case Value::ConstantFPVal:
+ if (const ConstantFP *constant_fp = dyn_cast<ConstantFP>(constant)) {
+ value = constant_fp->getValueAPF().bitcastToAPInt();
+ return true;
+ }
+ break;
+ case Value::ConstantExprVal:
+ if (const ConstantExpr *constant_expr =
+ dyn_cast<ConstantExpr>(constant)) {
+ switch (constant_expr->getOpcode()) {
default:
+ return false;
+ case Instruction::IntToPtr:
+ case Instruction::PtrToInt:
+ case Instruction::BitCast:
+ return ResolveConstantValue(value, constant_expr->getOperand(0));
+ case Instruction::GetElementPtr: {
+ ConstantExpr::const_op_iterator op_cursor = constant_expr->op_begin();
+ ConstantExpr::const_op_iterator op_end = constant_expr->op_end();
+
+ Constant *base = dyn_cast<Constant>(*op_cursor);
+
+ if (!base)
return false;
- }
+ if (!ResolveConstantValue(value, base))
+ return false;
+
+ op_cursor++;
+
+ if (op_cursor == op_end)
+ return true; // no offset to apply!
+
+ SmallVector<Value *, 8> indices(op_cursor, op_end);
+
+ Type *src_elem_ty =
+ cast<GEPOperator>(constant_expr)->getSourceElementType();
+ uint64_t offset =
+ m_target_data.getIndexedOffsetInType(src_elem_ty, indices);
+
+ const bool is_signed = true;
+ value += APInt(value.getBitWidth(), offset, is_signed);
+
+ return true;
+ }
+ }
+ }
+ break;
+ case Value::ConstantPointerNullVal:
+ if (isa<ConstantPointerNull>(constant)) {
+ value = APInt(m_target_data.getPointerSizeInBits(), 0);
return true;
+ }
+ break;
}
+ return false;
+ }
- bool EvaluateValue (lldb_private::Scalar &scalar, const Value *value, Module &module)
- {
- const Constant *constant = dyn_cast<Constant>(value);
+ bool MakeArgument(const Argument *value, uint64_t address) {
+ lldb::addr_t data_address = Malloc(value->getType());
- if (constant)
- {
- APInt value_apint;
+ if (data_address == LLDB_INVALID_ADDRESS)
+ return false;
- if (!ResolveConstantValue(value_apint, constant))
- return false;
+ lldb_private::Error write_error;
- return AssignToMatchType(scalar, value_apint.getLimitedValue(), value->getType());
- }
- else
- {
- lldb::addr_t process_address = ResolveValue(value, module);
- size_t value_size = m_target_data.getTypeStoreSize(value->getType());
+ m_execution_unit.WritePointerToMemory(data_address, address, write_error);
- lldb_private::DataExtractor value_extractor;
- lldb_private::Error extract_error;
+ if (!write_error.Success()) {
+ lldb_private::Error free_error;
+ m_execution_unit.Free(data_address, free_error);
+ return false;
+ }
- m_execution_unit.GetMemoryData(value_extractor, process_address, value_size, extract_error);
+ m_values[value] = data_address;
- if (!extract_error.Success())
- return false;
-
- lldb::offset_t offset = 0;
- if (value_size == 1 || value_size == 2 || value_size == 4 || value_size == 8)
- {
- uint64_t u64value = value_extractor.GetMaxU64(&offset, value_size);
- return AssignToMatchType(scalar, u64value, value->getType());
- }
- }
+ lldb_private::Log *log(
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- return false;
+ if (log) {
+ log->Printf("Made an allocation for argument %s",
+ PrintValue(value).c_str());
+ log->Printf(" Data region : %llx", (unsigned long long)address);
+ log->Printf(" Ref region : %llx", (unsigned long long)data_address);
}
- bool AssignValue (const Value *value, lldb_private::Scalar &scalar, Module &module)
- {
- lldb::addr_t process_address = ResolveValue (value, module);
+ return true;
+ }
- if (process_address == LLDB_INVALID_ADDRESS)
- return false;
+ bool ResolveConstant(lldb::addr_t process_address, const Constant *constant) {
+ APInt resolved_value;
- lldb_private::Scalar cast_scalar;
+ if (!ResolveConstantValue(resolved_value, constant))
+ return false;
- if (!AssignToMatchType(cast_scalar, scalar.ULongLong(), value->getType()))
- return false;
+ size_t constant_size = m_target_data.getTypeStoreSize(constant->getType());
+ lldb_private::DataBufferHeap buf(constant_size, 0);
- size_t value_byte_size = m_target_data.getTypeStoreSize(value->getType());
+ lldb_private::Error get_data_error;
- lldb_private::DataBufferHeap buf(value_byte_size, 0);
+ lldb_private::Scalar resolved_scalar(
+ resolved_value.zextOrTrunc(llvm::NextPowerOf2(constant_size) * 8));
+ if (!resolved_scalar.GetAsMemoryData(buf.GetBytes(), buf.GetByteSize(),
+ m_byte_order, get_data_error))
+ return false;
- lldb_private::Error get_data_error;
+ lldb_private::Error write_error;
- if (!cast_scalar.GetAsMemoryData(buf.GetBytes(), buf.GetByteSize(), m_byte_order, get_data_error))
- return false;
+ m_execution_unit.WriteMemory(process_address, buf.GetBytes(),
+ buf.GetByteSize(), write_error);
- lldb_private::Error write_error;
+ return write_error.Success();
+ }
- m_execution_unit.WriteMemory(process_address, buf.GetBytes(), buf.GetByteSize(), write_error);
+ lldb::addr_t Malloc(size_t size, uint8_t byte_alignment) {
+ lldb::addr_t ret = m_stack_pointer;
- return write_error.Success();
+ ret -= size;
+ ret -= (ret % byte_alignment);
+
+ if (ret < m_frame_process_address)
+ return LLDB_INVALID_ADDRESS;
+
+ m_stack_pointer = ret;
+ return ret;
+ }
+
+ lldb::addr_t MallocPointer() {
+ return Malloc(m_target_data.getPointerSize(),
+ m_target_data.getPointerPrefAlignment());
+ }
+
+ lldb::addr_t Malloc(llvm::Type *type) {
+ lldb_private::Error alloc_error;
+
+ return Malloc(m_target_data.getTypeAllocSize(type),
+ m_target_data.getPrefTypeAlignment(type));
+ }
+
+ std::string PrintData(lldb::addr_t addr, llvm::Type *type) {
+ size_t length = m_target_data.getTypeStoreSize(type);
+
+ lldb_private::DataBufferHeap buf(length, 0);
+
+ lldb_private::Error read_error;
+
+ m_execution_unit.ReadMemory(buf.GetBytes(), addr, length, read_error);
+
+ if (!read_error.Success())
+ return std::string("<couldn't read data>");
+
+ lldb_private::StreamString ss;
+
+ for (size_t i = 0; i < length; i++) {
+ if ((!(i & 0xf)) && i)
+ ss.Printf("%02hhx - ", buf.GetBytes()[i]);
+ else
+ ss.Printf("%02hhx ", buf.GetBytes()[i]);
}
- bool ResolveConstantValue (APInt &value, const Constant *constant)
- {
- switch (constant->getValueID())
- {
- default:
- break;
- case Value::FunctionVal:
- if (const Function *constant_func = dyn_cast<Function>(constant))
- {
- lldb_private::ConstString name(constant_func->getName());
- lldb::addr_t addr = m_execution_unit.FindSymbol(name);
- if (addr == LLDB_INVALID_ADDRESS)
- return false;
- value = APInt(m_target_data.getPointerSizeInBits(), addr);
- return true;
- }
- break;
- case Value::ConstantIntVal:
- if (const ConstantInt *constant_int = dyn_cast<ConstantInt>(constant))
- {
- value = constant_int->getValue();
- return true;
- }
- break;
- case Value::ConstantFPVal:
- if (const ConstantFP *constant_fp = dyn_cast<ConstantFP>(constant))
- {
- value = constant_fp->getValueAPF().bitcastToAPInt();
- return true;
- }
- break;
- case Value::ConstantExprVal:
- if (const ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(constant))
- {
- switch (constant_expr->getOpcode())
- {
- default:
- return false;
- case Instruction::IntToPtr:
- case Instruction::PtrToInt:
- case Instruction::BitCast:
- return ResolveConstantValue(value, constant_expr->getOperand(0));
- case Instruction::GetElementPtr:
- {
- ConstantExpr::const_op_iterator op_cursor = constant_expr->op_begin();
- ConstantExpr::const_op_iterator op_end = constant_expr->op_end();
-
- Constant *base = dyn_cast<Constant>(*op_cursor);
-
- if (!base)
- return false;
-
- if (!ResolveConstantValue(value, base))
- return false;
-
- op_cursor++;
-
- if (op_cursor == op_end)
- return true; // no offset to apply!
-
- SmallVector <Value *, 8> indices (op_cursor, op_end);
-
- Type *src_elem_ty = cast<GEPOperator>(constant_expr)->getSourceElementType();
- uint64_t offset = m_target_data.getIndexedOffsetInType(src_elem_ty, indices);
-
- const bool is_signed = true;
- value += APInt(value.getBitWidth(), offset, is_signed);
-
- return true;
- }
- }
- }
- break;
- case Value::ConstantPointerNullVal:
- if (isa<ConstantPointerNull>(constant))
- {
- value = APInt(m_target_data.getPointerSizeInBits(), 0);
- return true;
- }
- break;
- }
+ return ss.GetString();
+ }
+
+ lldb::addr_t ResolveValue(const Value *value, Module &module) {
+ ValueMap::iterator i = m_values.find(value);
+
+ if (i != m_values.end())
+ return i->second;
+
+ // Fall back and allocate space [allocation type Alloca]
+
+ lldb::addr_t data_address = Malloc(value->getType());
+
+ if (const Constant *constant = dyn_cast<Constant>(value)) {
+ if (!ResolveConstant(data_address, constant)) {
+ lldb_private::Error free_error;
+ m_execution_unit.Free(data_address, free_error);
+ return LLDB_INVALID_ADDRESS;
+ }
+ }
+
+ m_values[value] = data_address;
+ return data_address;
+ }
+};
+
+static const char *unsupported_opcode_error =
+ "Interpreter doesn't handle one of the expression's opcodes";
+static const char *unsupported_operand_error =
+ "Interpreter doesn't handle one of the expression's operands";
+// static const char *interpreter_initialization_error = "Interpreter couldn't
+// be initialized";
+static const char *interpreter_internal_error =
+ "Interpreter encountered an internal error";
+static const char *bad_value_error =
+ "Interpreter couldn't resolve a value during execution";
+static const char *memory_allocation_error =
+ "Interpreter couldn't allocate memory";
+static const char *memory_write_error = "Interpreter couldn't write to memory";
+static const char *memory_read_error = "Interpreter couldn't read from memory";
+static const char *infinite_loop_error = "Interpreter ran for too many cycles";
+// static const char *bad_result_error = "Result of expression
+// is in bad memory";
+static const char *too_many_functions_error =
+ "Interpreter doesn't handle modules with multiple function bodies.";
+
+static bool CanResolveConstant(llvm::Constant *constant) {
+ switch (constant->getValueID()) {
+ default:
+ return false;
+ case Value::ConstantIntVal:
+ case Value::ConstantFPVal:
+ case Value::FunctionVal:
+ return true;
+ case Value::ConstantExprVal:
+ if (const ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(constant)) {
+ switch (constant_expr->getOpcode()) {
+ default:
return false;
+ case Instruction::IntToPtr:
+ case Instruction::PtrToInt:
+ case Instruction::BitCast:
+ return CanResolveConstant(constant_expr->getOperand(0));
+ case Instruction::GetElementPtr: {
+ ConstantExpr::const_op_iterator op_cursor = constant_expr->op_begin();
+ Constant *base = dyn_cast<Constant>(*op_cursor);
+ if (!base)
+ return false;
+
+ return CanResolveConstant(base);
+ }
+ }
+ } else {
+ return false;
}
+ case Value::ConstantPointerNullVal:
+ return true;
+ }
+}
- bool MakeArgument(const Argument *value, uint64_t address)
- {
- lldb::addr_t data_address = Malloc(value->getType());
+bool IRInterpreter::CanInterpret(llvm::Module &module, llvm::Function &function,
+ lldb_private::Error &error,
+ const bool support_function_calls) {
+ lldb_private::Log *log(
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+
+ bool saw_function_with_body = false;
+
+ for (Module::iterator fi = module.begin(), fe = module.end(); fi != fe;
+ ++fi) {
+ if (fi->begin() != fi->end()) {
+ if (saw_function_with_body) {
+ if (log)
+ log->Printf("More than one function in the module has a body");
+ error.SetErrorToGenericError();
+ error.SetErrorString(too_many_functions_error);
+ return false;
+ }
+ saw_function_with_body = true;
+ }
+ }
- if (data_address == LLDB_INVALID_ADDRESS)
- return false;
+ for (Function::iterator bbi = function.begin(), bbe = function.end();
+ bbi != bbe; ++bbi) {
+ for (BasicBlock::iterator ii = bbi->begin(), ie = bbi->end(); ii != ie;
+ ++ii) {
+ switch (ii->getOpcode()) {
+ default: {
+ if (log)
+ log->Printf("Unsupported instruction: %s", PrintValue(&*ii).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(unsupported_opcode_error);
+ return false;
+ }
+ case Instruction::Add:
+ case Instruction::Alloca:
+ case Instruction::BitCast:
+ case Instruction::Br:
+ case Instruction::PHI:
+ break;
+ case Instruction::Call: {
+ CallInst *call_inst = dyn_cast<CallInst>(ii);
+
+ if (!call_inst) {
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
- lldb_private::Error write_error;
+ if (!CanIgnoreCall(call_inst) && !support_function_calls) {
+ if (log)
+ log->Printf("Unsupported instruction: %s",
+ PrintValue(&*ii).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(unsupported_opcode_error);
+ return false;
+ }
+ } break;
+ case Instruction::GetElementPtr:
+ break;
+ case Instruction::ICmp: {
+ ICmpInst *icmp_inst = dyn_cast<ICmpInst>(ii);
+
+ if (!icmp_inst) {
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
- m_execution_unit.WritePointerToMemory(data_address, address, write_error);
+ switch (icmp_inst->getPredicate()) {
+ default: {
+ if (log)
+ log->Printf("Unsupported ICmp predicate: %s",
+ PrintValue(&*ii).c_str());
+
+ error.SetErrorToGenericError();
+ error.SetErrorString(unsupported_opcode_error);
+ return false;
+ }
+ case CmpInst::ICMP_EQ:
+ case CmpInst::ICMP_NE:
+ case CmpInst::ICMP_UGT:
+ case CmpInst::ICMP_UGE:
+ case CmpInst::ICMP_ULT:
+ case CmpInst::ICMP_ULE:
+ case CmpInst::ICMP_SGT:
+ case CmpInst::ICMP_SGE:
+ case CmpInst::ICMP_SLT:
+ case CmpInst::ICMP_SLE:
+ break;
+ }
+ } break;
+ case Instruction::And:
+ case Instruction::AShr:
+ case Instruction::IntToPtr:
+ case Instruction::PtrToInt:
+ case Instruction::Load:
+ case Instruction::LShr:
+ case Instruction::Mul:
+ case Instruction::Or:
+ case Instruction::Ret:
+ case Instruction::SDiv:
+ case Instruction::SExt:
+ case Instruction::Shl:
+ case Instruction::SRem:
+ case Instruction::Store:
+ case Instruction::Sub:
+ case Instruction::Trunc:
+ case Instruction::UDiv:
+ case Instruction::URem:
+ case Instruction::Xor:
+ case Instruction::ZExt:
+ break;
+ }
+
+ for (int oi = 0, oe = ii->getNumOperands(); oi != oe; ++oi) {
+ Value *operand = ii->getOperand(oi);
+ Type *operand_type = operand->getType();
- if (!write_error.Success())
- {
- lldb_private::Error free_error;
- m_execution_unit.Free(data_address, free_error);
+ switch (operand_type->getTypeID()) {
+ default:
+ break;
+ case Type::VectorTyID: {
+ if (log)
+ log->Printf("Unsupported operand type: %s",
+ PrintType(operand_type).c_str());
+ error.SetErrorString(unsupported_operand_error);
+ return false;
+ }
+ }
+
+ if (Constant *constant = llvm::dyn_cast<Constant>(operand)) {
+ if (!CanResolveConstant(constant)) {
+ if (log)
+ log->Printf("Unsupported constant: %s",
+ PrintValue(constant).c_str());
+ error.SetErrorString(unsupported_operand_error);
return false;
+ }
}
+ }
+ }
+ }
- m_values[value] = data_address;
+ return true;
+}
- lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+bool IRInterpreter::Interpret(llvm::Module &module, llvm::Function &function,
+ llvm::ArrayRef<lldb::addr_t> args,
+ lldb_private::IRExecutionUnit &execution_unit,
+ lldb_private::Error &error,
+ lldb::addr_t stack_frame_bottom,
+ lldb::addr_t stack_frame_top,
+ lldb_private::ExecutionContext &exe_ctx) {
+ lldb_private::Log *log(
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- if (log)
- {
- log->Printf("Made an allocation for argument %s", PrintValue(value).c_str());
- log->Printf(" Data region : %llx", (unsigned long long)address);
- log->Printf(" Ref region : %llx", (unsigned long long)data_address);
- }
+ if (log) {
+ std::string s;
+ raw_string_ostream oss(s);
- return true;
+ module.print(oss, NULL);
+
+ oss.flush();
+
+ log->Printf("Module as passed in to IRInterpreter::Interpret: \n\"%s\"",
+ s.c_str());
+ }
+
+ DataLayout data_layout(&module);
+
+ InterpreterStackFrame frame(data_layout, execution_unit, stack_frame_bottom,
+ stack_frame_top);
+
+ if (frame.m_frame_process_address == LLDB_INVALID_ADDRESS) {
+ error.SetErrorString("Couldn't allocate stack frame");
+ }
+
+ int arg_index = 0;
+
+ for (llvm::Function::arg_iterator ai = function.arg_begin(),
+ ae = function.arg_end();
+ ai != ae; ++ai, ++arg_index) {
+ if (args.size() <= static_cast<size_t>(arg_index)) {
+ error.SetErrorString("Not enough arguments passed in to function");
+ return false;
}
- bool ResolveConstant (lldb::addr_t process_address, const Constant *constant)
- {
- APInt resolved_value;
+ lldb::addr_t ptr = args[arg_index];
- if (!ResolveConstantValue(resolved_value, constant))
- return false;
+ frame.MakeArgument(&*ai, ptr);
+ }
- size_t constant_size = m_target_data.getTypeStoreSize(constant->getType());
- lldb_private::DataBufferHeap buf(constant_size, 0);
+ uint32_t num_insts = 0;
- lldb_private::Error get_data_error;
+ frame.Jump(&function.front());
- lldb_private::Scalar resolved_scalar(resolved_value.zextOrTrunc(llvm::NextPowerOf2(constant_size) * 8));
- if (!resolved_scalar.GetAsMemoryData(buf.GetBytes(), buf.GetByteSize(), m_byte_order, get_data_error))
- return false;
+ while (frame.m_ii != frame.m_ie && (++num_insts < 4096)) {
+ const Instruction *inst = &*frame.m_ii;
- lldb_private::Error write_error;
+ if (log)
+ log->Printf("Interpreting %s", PrintValue(inst).c_str());
- m_execution_unit.WriteMemory(process_address, buf.GetBytes(), buf.GetByteSize(), write_error);
+ switch (inst->getOpcode()) {
+ default:
+ break;
- return write_error.Success();
- }
+ case Instruction::Add:
+ case Instruction::Sub:
+ case Instruction::Mul:
+ case Instruction::SDiv:
+ case Instruction::UDiv:
+ case Instruction::SRem:
+ case Instruction::URem:
+ case Instruction::Shl:
+ case Instruction::LShr:
+ case Instruction::AShr:
+ case Instruction::And:
+ case Instruction::Or:
+ case Instruction::Xor: {
+ const BinaryOperator *bin_op = dyn_cast<BinaryOperator>(inst);
- lldb::addr_t Malloc (size_t size, uint8_t byte_alignment)
- {
- lldb::addr_t ret = m_stack_pointer;
+ if (!bin_op) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns %s, but instruction is not a BinaryOperator",
+ inst->getOpcodeName());
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
- ret -= size;
- ret -= (ret % byte_alignment);
+ Value *lhs = inst->getOperand(0);
+ Value *rhs = inst->getOperand(1);
- if (ret < m_frame_process_address)
- return LLDB_INVALID_ADDRESS;
+ lldb_private::Scalar L;
+ lldb_private::Scalar R;
- m_stack_pointer = ret;
- return ret;
- }
+ if (!frame.EvaluateValue(L, lhs, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(lhs).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
- lldb::addr_t MallocPointer ()
- {
- return Malloc(m_target_data.getPointerSize(), m_target_data.getPointerPrefAlignment());
- }
+ if (!frame.EvaluateValue(R, rhs, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(rhs).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
- lldb::addr_t Malloc (llvm::Type *type)
- {
- lldb_private::Error alloc_error;
+ lldb_private::Scalar result;
- return Malloc(m_target_data.getTypeAllocSize(type), m_target_data.getPrefTypeAlignment(type));
- }
+ switch (inst->getOpcode()) {
+ default:
+ break;
+ case Instruction::Add:
+ result = L + R;
+ break;
+ case Instruction::Mul:
+ result = L * R;
+ break;
+ case Instruction::Sub:
+ result = L - R;
+ break;
+ case Instruction::SDiv:
+ L.MakeSigned();
+ R.MakeSigned();
+ result = L / R;
+ break;
+ case Instruction::UDiv:
+ L.MakeUnsigned();
+ R.MakeUnsigned();
+ result = L / R;
+ break;
+ case Instruction::SRem:
+ L.MakeSigned();
+ R.MakeSigned();
+ result = L % R;
+ break;
+ case Instruction::URem:
+ L.MakeUnsigned();
+ R.MakeUnsigned();
+ result = L % R;
+ break;
+ case Instruction::Shl:
+ result = L << R;
+ break;
+ case Instruction::AShr:
+ result = L >> R;
+ break;
+ case Instruction::LShr:
+ result = L;
+ result.ShiftRightLogical(R);
+ break;
+ case Instruction::And:
+ result = L & R;
+ break;
+ case Instruction::Or:
+ result = L | R;
+ break;
+ case Instruction::Xor:
+ result = L ^ R;
+ break;
+ }
+
+ frame.AssignValue(inst, result, module);
+
+ if (log) {
+ log->Printf("Interpreted a %s", inst->getOpcodeName());
+ log->Printf(" L : %s", frame.SummarizeValue(lhs).c_str());
+ log->Printf(" R : %s", frame.SummarizeValue(rhs).c_str());
+ log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
+ }
+ } break;
+ case Instruction::Alloca: {
+ const AllocaInst *alloca_inst = dyn_cast<AllocaInst>(inst);
+
+ if (!alloca_inst) {
+ if (log)
+ log->Printf("getOpcode() returns Alloca, but instruction is not an "
+ "AllocaInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ if (alloca_inst->isArrayAllocation()) {
+ if (log)
+ log->Printf(
+ "AllocaInsts are not handled if isArrayAllocation() is true");
+ error.SetErrorToGenericError();
+ error.SetErrorString(unsupported_opcode_error);
+ return false;
+ }
+
+ // The semantics of Alloca are:
+ // Create a region R of virtual memory of type T, backed by a data
+ // buffer
+ // Create a region P of virtual memory of type T*, backed by a data
+ // buffer
+ // Write the virtual address of R into P
- std::string PrintData (lldb::addr_t addr, llvm::Type *type)
- {
- size_t length = m_target_data.getTypeStoreSize(type);
+ Type *T = alloca_inst->getAllocatedType();
+ Type *Tptr = alloca_inst->getType();
- lldb_private::DataBufferHeap buf(length, 0);
+ lldb::addr_t R = frame.Malloc(T);
- lldb_private::Error read_error;
+ if (R == LLDB_INVALID_ADDRESS) {
+ if (log)
+ log->Printf("Couldn't allocate memory for an AllocaInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_allocation_error);
+ return false;
+ }
- m_execution_unit.ReadMemory(buf.GetBytes(), addr, length, read_error);
+ lldb::addr_t P = frame.Malloc(Tptr);
- if (!read_error.Success())
- return std::string("<couldn't read data>");
+ if (P == LLDB_INVALID_ADDRESS) {
+ if (log)
+ log->Printf("Couldn't allocate the result pointer for an AllocaInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_allocation_error);
+ return false;
+ }
- lldb_private::StreamString ss;
+ lldb_private::Error write_error;
- for (size_t i = 0; i < length; i++)
- {
- if ((!(i & 0xf)) && i)
- ss.Printf("%02hhx - ", buf.GetBytes()[i]);
- else
- ss.Printf("%02hhx ", buf.GetBytes()[i]);
- }
+ execution_unit.WritePointerToMemory(P, R, write_error);
- return ss.GetString();
- }
+ if (!write_error.Success()) {
+ if (log)
+ log->Printf("Couldn't write the result pointer for an AllocaInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_write_error);
+ lldb_private::Error free_error;
+ execution_unit.Free(P, free_error);
+ execution_unit.Free(R, free_error);
+ return false;
+ }
+
+ frame.m_values[alloca_inst] = P;
- lldb::addr_t ResolveValue (const Value *value, Module &module)
- {
- ValueMap::iterator i = m_values.find(value);
+ if (log) {
+ log->Printf("Interpreted an AllocaInst");
+ log->Printf(" R : 0x%" PRIx64, R);
+ log->Printf(" P : 0x%" PRIx64, P);
+ }
+ } break;
+ case Instruction::BitCast:
+ case Instruction::ZExt: {
+ const CastInst *cast_inst = dyn_cast<CastInst>(inst);
- if (i != m_values.end())
- return i->second;
+ if (!cast_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns %s, but instruction is not a BitCastInst",
+ cast_inst->getOpcodeName());
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
- // Fall back and allocate space [allocation type Alloca]
+ Value *source = cast_inst->getOperand(0);
- lldb::addr_t data_address = Malloc(value->getType());
+ lldb_private::Scalar S;
- if (const Constant *constant = dyn_cast<Constant>(value))
- {
- if (!ResolveConstant (data_address, constant))
- {
- lldb_private::Error free_error;
- m_execution_unit.Free(data_address, free_error);
- return LLDB_INVALID_ADDRESS;
- }
- }
+ if (!frame.EvaluateValue(S, source, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(source).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
- m_values[value] = data_address;
- return data_address;
- }
-};
+ frame.AssignValue(inst, S, module);
+ } break;
+ case Instruction::SExt: {
+ const CastInst *cast_inst = dyn_cast<CastInst>(inst);
-static const char *unsupported_opcode_error = "Interpreter doesn't handle one of the expression's opcodes";
-static const char *unsupported_operand_error = "Interpreter doesn't handle one of the expression's operands";
-//static const char *interpreter_initialization_error = "Interpreter couldn't be initialized";
-static const char *interpreter_internal_error = "Interpreter encountered an internal error";
-static const char *bad_value_error = "Interpreter couldn't resolve a value during execution";
-static const char *memory_allocation_error = "Interpreter couldn't allocate memory";
-static const char *memory_write_error = "Interpreter couldn't write to memory";
-static const char *memory_read_error = "Interpreter couldn't read from memory";
-static const char *infinite_loop_error = "Interpreter ran for too many cycles";
-//static const char *bad_result_error = "Result of expression is in bad memory";
-static const char *too_many_functions_error = "Interpreter doesn't handle modules with multiple function bodies.";
-
-static bool
-CanResolveConstant (llvm::Constant *constant)
-{
- switch (constant->getValueID())
- {
- default:
+ if (!cast_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns %s, but instruction is not a BitCastInst",
+ cast_inst->getOpcodeName());
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
return false;
- case Value::ConstantIntVal:
- case Value::ConstantFPVal:
- case Value::FunctionVal:
- return true;
- case Value::ConstantExprVal:
- if (const ConstantExpr *constant_expr = dyn_cast<ConstantExpr>(constant))
- {
- switch (constant_expr->getOpcode())
- {
- default:
- return false;
- case Instruction::IntToPtr:
- case Instruction::PtrToInt:
- case Instruction::BitCast:
- return CanResolveConstant(constant_expr->getOperand(0));
- case Instruction::GetElementPtr:
- {
- ConstantExpr::const_op_iterator op_cursor = constant_expr->op_begin();
- Constant *base = dyn_cast<Constant>(*op_cursor);
- if (!base)
- return false;
+ }
- return CanResolveConstant(base);
- }
- }
- } else {
- return false;
- }
- case Value::ConstantPointerNullVal:
- return true;
- }
-}
+ Value *source = cast_inst->getOperand(0);
-bool
-IRInterpreter::CanInterpret (llvm::Module &module,
- llvm::Function &function,
- lldb_private::Error &error,
- const bool support_function_calls)
-{
- lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
-
- bool saw_function_with_body = false;
-
- for (Module::iterator fi = module.begin(), fe = module.end();
- fi != fe;
- ++fi)
- {
- if (fi->begin() != fi->end())
- {
- if (saw_function_with_body)
- {
- if (log)
- log->Printf("More than one function in the module has a body");
- error.SetErrorToGenericError();
- error.SetErrorString(too_many_functions_error);
- return false;
- }
- saw_function_with_body = true;
+ lldb_private::Scalar S;
+
+ if (!frame.EvaluateValue(S, source, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(source).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ S.MakeSigned();
+
+ lldb_private::Scalar S_signextend(S.SLongLong());
+
+ frame.AssignValue(inst, S_signextend, module);
+ } break;
+ case Instruction::Br: {
+ const BranchInst *br_inst = dyn_cast<BranchInst>(inst);
+
+ if (!br_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns Br, but instruction is not a BranchInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ if (br_inst->isConditional()) {
+ Value *condition = br_inst->getCondition();
+
+ lldb_private::Scalar C;
+
+ if (!frame.EvaluateValue(C, condition, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(condition).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
}
- }
- for (Function::iterator bbi = function.begin(), bbe = function.end();
- bbi != bbe;
- ++bbi)
- {
- for (BasicBlock::iterator ii = bbi->begin(), ie = bbi->end();
- ii != ie;
- ++ii)
- {
- switch (ii->getOpcode())
- {
- default:
- {
- if (log)
- log->Printf("Unsupported instruction: %s", PrintValue(&*ii).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(unsupported_opcode_error);
- return false;
- }
- case Instruction::Add:
- case Instruction::Alloca:
- case Instruction::BitCast:
- case Instruction::Br:
- case Instruction::PHI:
- break;
- case Instruction::Call:
- {
- CallInst *call_inst = dyn_cast<CallInst>(ii);
-
- if (!call_inst)
- {
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- if (!CanIgnoreCall(call_inst) && !support_function_calls)
- {
- if (log)
- log->Printf("Unsupported instruction: %s", PrintValue(&*ii).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(unsupported_opcode_error);
- return false;
- }
- }
- break;
- case Instruction::GetElementPtr:
- break;
- case Instruction::ICmp:
- {
- ICmpInst *icmp_inst = dyn_cast<ICmpInst>(ii);
-
- if (!icmp_inst)
- {
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- switch (icmp_inst->getPredicate())
- {
- default:
- {
- if (log)
- log->Printf("Unsupported ICmp predicate: %s", PrintValue(&*ii).c_str());
-
- error.SetErrorToGenericError();
- error.SetErrorString(unsupported_opcode_error);
- return false;
- }
- case CmpInst::ICMP_EQ:
- case CmpInst::ICMP_NE:
- case CmpInst::ICMP_UGT:
- case CmpInst::ICMP_UGE:
- case CmpInst::ICMP_ULT:
- case CmpInst::ICMP_ULE:
- case CmpInst::ICMP_SGT:
- case CmpInst::ICMP_SGE:
- case CmpInst::ICMP_SLT:
- case CmpInst::ICMP_SLE:
- break;
- }
- }
- break;
- case Instruction::And:
- case Instruction::AShr:
- case Instruction::IntToPtr:
- case Instruction::PtrToInt:
- case Instruction::Load:
- case Instruction::LShr:
- case Instruction::Mul:
- case Instruction::Or:
- case Instruction::Ret:
- case Instruction::SDiv:
- case Instruction::SExt:
- case Instruction::Shl:
- case Instruction::SRem:
- case Instruction::Store:
- case Instruction::Sub:
- case Instruction::Trunc:
- case Instruction::UDiv:
- case Instruction::URem:
- case Instruction::Xor:
- case Instruction::ZExt:
- break;
- }
+ if (!C.IsZero())
+ frame.Jump(br_inst->getSuccessor(0));
+ else
+ frame.Jump(br_inst->getSuccessor(1));
- for (int oi = 0, oe = ii->getNumOperands();
- oi != oe;
- ++oi)
- {
- Value *operand = ii->getOperand(oi);
- Type *operand_type = operand->getType();
-
- switch (operand_type->getTypeID())
- {
- default:
- break;
- case Type::VectorTyID:
- {
- if (log)
- log->Printf("Unsupported operand type: %s", PrintType(operand_type).c_str());
- error.SetErrorString(unsupported_operand_error);
- return false;
- }
- }
-
- if (Constant *constant = llvm::dyn_cast<Constant>(operand))
- {
- if (!CanResolveConstant(constant))
- {
- if (log)
- log->Printf("Unsupported constant: %s", PrintValue(constant).c_str());
- error.SetErrorString(unsupported_operand_error);
- return false;
- }
- }
- }
+ if (log) {
+ log->Printf("Interpreted a BrInst with a condition");
+ log->Printf(" cond : %s", frame.SummarizeValue(condition).c_str());
}
+ } else {
+ frame.Jump(br_inst->getSuccessor(0));
+ if (log) {
+ log->Printf("Interpreted a BrInst with no condition");
+ }
+ }
}
+ continue;
+ case Instruction::PHI: {
+ const PHINode *phi_inst = dyn_cast<PHINode>(inst);
- return true;
-}
+ if (!phi_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns PHI, but instruction is not a PHINode");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+ if (!frame.m_prev_bb) {
+ if (log)
+ log->Printf("Encountered PHI node without having jumped from another "
+ "basic block");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
-bool
-IRInterpreter::Interpret (llvm::Module &module,
- llvm::Function &function,
- llvm::ArrayRef<lldb::addr_t> args,
- lldb_private::IRExecutionUnit &execution_unit,
- lldb_private::Error &error,
- lldb::addr_t stack_frame_bottom,
- lldb::addr_t stack_frame_top,
- lldb_private::ExecutionContext &exe_ctx)
-{
- lldb_private::Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ Value *value = phi_inst->getIncomingValueForBlock(frame.m_prev_bb);
+ lldb_private::Scalar result;
+ if (!frame.EvaluateValue(result, value, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(value).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+ frame.AssignValue(inst, result, module);
- if (log)
- {
- std::string s;
- raw_string_ostream oss(s);
+ if (log) {
+ log->Printf("Interpreted a %s", inst->getOpcodeName());
+ log->Printf(" Incoming value : %s",
+ frame.SummarizeValue(value).c_str());
+ }
+ } break;
+ case Instruction::GetElementPtr: {
+ const GetElementPtrInst *gep_inst = dyn_cast<GetElementPtrInst>(inst);
- module.print(oss, NULL);
+ if (!gep_inst) {
+ if (log)
+ log->Printf("getOpcode() returns GetElementPtr, but instruction is "
+ "not a GetElementPtrInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
- oss.flush();
+ const Value *pointer_operand = gep_inst->getPointerOperand();
+ Type *src_elem_ty = gep_inst->getSourceElementType();
- log->Printf("Module as passed in to IRInterpreter::Interpret: \n\"%s\"", s.c_str());
- }
+ lldb_private::Scalar P;
- DataLayout data_layout(&module);
+ if (!frame.EvaluateValue(P, pointer_operand, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s",
+ PrintValue(pointer_operand).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
- InterpreterStackFrame frame(data_layout, execution_unit, stack_frame_bottom, stack_frame_top);
+ typedef SmallVector<Value *, 8> IndexVector;
+ typedef IndexVector::iterator IndexIterator;
- if (frame.m_frame_process_address == LLDB_INVALID_ADDRESS)
- {
- error.SetErrorString("Couldn't allocate stack frame");
- }
+ SmallVector<Value *, 8> indices(gep_inst->idx_begin(),
+ gep_inst->idx_end());
- int arg_index = 0;
+ SmallVector<Value *, 8> const_indices;
- for (llvm::Function::arg_iterator ai = function.arg_begin(), ae = function.arg_end();
- ai != ae;
- ++ai, ++arg_index)
- {
- if (args.size() <= static_cast<size_t>(arg_index))
- {
- error.SetErrorString ("Not enough arguments passed in to function");
+ for (IndexIterator ii = indices.begin(), ie = indices.end(); ii != ie;
+ ++ii) {
+ ConstantInt *constant_index = dyn_cast<ConstantInt>(*ii);
+
+ if (!constant_index) {
+ lldb_private::Scalar I;
+
+ if (!frame.EvaluateValue(I, *ii, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(*ii).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
return false;
+ }
+
+ if (log)
+ log->Printf("Evaluated constant index %s as %llu",
+ PrintValue(*ii).c_str(),
+ I.ULongLong(LLDB_INVALID_ADDRESS));
+
+ constant_index = cast<ConstantInt>(ConstantInt::get(
+ (*ii)->getType(), I.ULongLong(LLDB_INVALID_ADDRESS)));
}
- lldb::addr_t ptr = args[arg_index];
+ const_indices.push_back(constant_index);
+ }
+
+ uint64_t offset =
+ data_layout.getIndexedOffsetInType(src_elem_ty, const_indices);
+
+ lldb_private::Scalar Poffset = P + offset;
+
+ frame.AssignValue(inst, Poffset, module);
+
+ if (log) {
+ log->Printf("Interpreted a GetElementPtrInst");
+ log->Printf(" P : %s",
+ frame.SummarizeValue(pointer_operand).c_str());
+ log->Printf(" Poffset : %s", frame.SummarizeValue(inst).c_str());
+ }
+ } break;
+ case Instruction::ICmp: {
+ const ICmpInst *icmp_inst = dyn_cast<ICmpInst>(inst);
+
+ if (!icmp_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns ICmp, but instruction is not an ICmpInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ CmpInst::Predicate predicate = icmp_inst->getPredicate();
+
+ Value *lhs = inst->getOperand(0);
+ Value *rhs = inst->getOperand(1);
+
+ lldb_private::Scalar L;
+ lldb_private::Scalar R;
+
+ if (!frame.EvaluateValue(L, lhs, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(lhs).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ if (!frame.EvaluateValue(R, rhs, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(rhs).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ lldb_private::Scalar result;
+
+ switch (predicate) {
+ default:
+ return false;
+ case CmpInst::ICMP_EQ:
+ result = (L == R);
+ break;
+ case CmpInst::ICMP_NE:
+ result = (L != R);
+ break;
+ case CmpInst::ICMP_UGT:
+ L.MakeUnsigned();
+ R.MakeUnsigned();
+ result = (L > R);
+ break;
+ case CmpInst::ICMP_UGE:
+ L.MakeUnsigned();
+ R.MakeUnsigned();
+ result = (L >= R);
+ break;
+ case CmpInst::ICMP_ULT:
+ L.MakeUnsigned();
+ R.MakeUnsigned();
+ result = (L < R);
+ break;
+ case CmpInst::ICMP_ULE:
+ L.MakeUnsigned();
+ R.MakeUnsigned();
+ result = (L <= R);
+ break;
+ case CmpInst::ICMP_SGT:
+ L.MakeSigned();
+ R.MakeSigned();
+ result = (L > R);
+ break;
+ case CmpInst::ICMP_SGE:
+ L.MakeSigned();
+ R.MakeSigned();
+ result = (L >= R);
+ break;
+ case CmpInst::ICMP_SLT:
+ L.MakeSigned();
+ R.MakeSigned();
+ result = (L < R);
+ break;
+ case CmpInst::ICMP_SLE:
+ L.MakeSigned();
+ R.MakeSigned();
+ result = (L <= R);
+ break;
+ }
+
+ frame.AssignValue(inst, result, module);
+
+ if (log) {
+ log->Printf("Interpreted an ICmpInst");
+ log->Printf(" L : %s", frame.SummarizeValue(lhs).c_str());
+ log->Printf(" R : %s", frame.SummarizeValue(rhs).c_str());
+ log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
+ }
+ } break;
+ case Instruction::IntToPtr: {
+ const IntToPtrInst *int_to_ptr_inst = dyn_cast<IntToPtrInst>(inst);
+
+ if (!int_to_ptr_inst) {
+ if (log)
+ log->Printf("getOpcode() returns IntToPtr, but instruction is not an "
+ "IntToPtrInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ Value *src_operand = int_to_ptr_inst->getOperand(0);
+
+ lldb_private::Scalar I;
+
+ if (!frame.EvaluateValue(I, src_operand, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(src_operand).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ frame.AssignValue(inst, I, module);
+
+ if (log) {
+ log->Printf("Interpreted an IntToPtr");
+ log->Printf(" Src : %s", frame.SummarizeValue(src_operand).c_str());
+ log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
+ }
+ } break;
+ case Instruction::PtrToInt: {
+ const PtrToIntInst *ptr_to_int_inst = dyn_cast<PtrToIntInst>(inst);
+
+ if (!ptr_to_int_inst) {
+ if (log)
+ log->Printf("getOpcode() returns PtrToInt, but instruction is not an "
+ "PtrToIntInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ Value *src_operand = ptr_to_int_inst->getOperand(0);
+
+ lldb_private::Scalar I;
+
+ if (!frame.EvaluateValue(I, src_operand, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(src_operand).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ frame.AssignValue(inst, I, module);
+
+ if (log) {
+ log->Printf("Interpreted a PtrToInt");
+ log->Printf(" Src : %s", frame.SummarizeValue(src_operand).c_str());
+ log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
+ }
+ } break;
+ case Instruction::Trunc: {
+ const TruncInst *trunc_inst = dyn_cast<TruncInst>(inst);
+
+ if (!trunc_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns Trunc, but instruction is not a TruncInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ Value *src_operand = trunc_inst->getOperand(0);
+
+ lldb_private::Scalar I;
+
+ if (!frame.EvaluateValue(I, src_operand, module)) {
+ if (log)
+ log->Printf("Couldn't evaluate %s", PrintValue(src_operand).c_str());
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ frame.AssignValue(inst, I, module);
+
+ if (log) {
+ log->Printf("Interpreted a Trunc");
+ log->Printf(" Src : %s", frame.SummarizeValue(src_operand).c_str());
+ log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
+ }
+ } break;
+ case Instruction::Load: {
+ const LoadInst *load_inst = dyn_cast<LoadInst>(inst);
+
+ if (!load_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns Load, but instruction is not a LoadInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ // The semantics of Load are:
+ // Create a region D that will contain the loaded data
+ // Resolve the region P containing a pointer
+ // Dereference P to get the region R that the data should be loaded from
+ // Transfer a unit of type type(D) from R to D
+
+ const Value *pointer_operand = load_inst->getPointerOperand();
+
+ Type *pointer_ty = pointer_operand->getType();
+ PointerType *pointer_ptr_ty = dyn_cast<PointerType>(pointer_ty);
+ if (!pointer_ptr_ty) {
+ if (log)
+ log->Printf("getPointerOperand()->getType() is not a PointerType");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+ Type *target_ty = pointer_ptr_ty->getElementType();
+
+ lldb::addr_t D = frame.ResolveValue(load_inst, module);
+ lldb::addr_t P = frame.ResolveValue(pointer_operand, module);
+
+ if (D == LLDB_INVALID_ADDRESS) {
+ if (log)
+ log->Printf("LoadInst's value doesn't resolve to anything");
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ if (P == LLDB_INVALID_ADDRESS) {
+ if (log)
+ log->Printf("LoadInst's pointer doesn't resolve to anything");
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
+
+ lldb::addr_t R;
+ lldb_private::Error read_error;
+ execution_unit.ReadPointerFromMemory(&R, P, read_error);
+
+ if (!read_error.Success()) {
+ if (log)
+ log->Printf("Couldn't read the address to be loaded for a LoadInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_read_error);
+ return false;
+ }
+
+ size_t target_size = data_layout.getTypeStoreSize(target_ty);
+ lldb_private::DataBufferHeap buffer(target_size, 0);
+
+ read_error.Clear();
+ execution_unit.ReadMemory(buffer.GetBytes(), R, buffer.GetByteSize(),
+ read_error);
+ if (!read_error.Success()) {
+ if (log)
+ log->Printf("Couldn't read from a region on behalf of a LoadInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_read_error);
+ return false;
+ }
+
+ lldb_private::Error write_error;
+ execution_unit.WriteMemory(D, buffer.GetBytes(), buffer.GetByteSize(),
+ write_error);
+ if (!write_error.Success()) {
+ if (log)
+ log->Printf("Couldn't write to a region on behalf of a LoadInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_read_error);
+ return false;
+ }
- frame.MakeArgument(&*ai, ptr);
+ if (log) {
+ log->Printf("Interpreted a LoadInst");
+ log->Printf(" P : 0x%" PRIx64, P);
+ log->Printf(" R : 0x%" PRIx64, R);
+ log->Printf(" D : 0x%" PRIx64, D);
+ }
+ } break;
+ case Instruction::Ret: {
+ return true;
}
+ case Instruction::Store: {
+ const StoreInst *store_inst = dyn_cast<StoreInst>(inst);
- uint32_t num_insts = 0;
+ if (!store_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns Store, but instruction is not a StoreInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
- frame.Jump(&function.front());
+ // The semantics of Store are:
+ // Resolve the region D containing the data to be stored
+ // Resolve the region P containing a pointer
+ // Dereference P to get the region R that the data should be stored in
+ // Transfer a unit of type type(D) from D to R
+
+ const Value *value_operand = store_inst->getValueOperand();
+ const Value *pointer_operand = store_inst->getPointerOperand();
+
+ Type *pointer_ty = pointer_operand->getType();
+ PointerType *pointer_ptr_ty = dyn_cast<PointerType>(pointer_ty);
+ if (!pointer_ptr_ty)
+ return false;
+ Type *target_ty = pointer_ptr_ty->getElementType();
- while (frame.m_ii != frame.m_ie && (++num_insts < 4096))
- {
- const Instruction *inst = &*frame.m_ii;
+ lldb::addr_t D = frame.ResolveValue(value_operand, module);
+ lldb::addr_t P = frame.ResolveValue(pointer_operand, module);
+ if (D == LLDB_INVALID_ADDRESS) {
if (log)
- log->Printf("Interpreting %s", PrintValue(inst).c_str());
+ log->Printf("StoreInst's value doesn't resolve to anything");
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
- switch (inst->getOpcode())
- {
- default:
- break;
+ if (P == LLDB_INVALID_ADDRESS) {
+ if (log)
+ log->Printf("StoreInst's pointer doesn't resolve to anything");
+ error.SetErrorToGenericError();
+ error.SetErrorString(bad_value_error);
+ return false;
+ }
- case Instruction::Add:
- case Instruction::Sub:
- case Instruction::Mul:
- case Instruction::SDiv:
- case Instruction::UDiv:
- case Instruction::SRem:
- case Instruction::URem:
- case Instruction::Shl:
- case Instruction::LShr:
- case Instruction::AShr:
- case Instruction::And:
- case Instruction::Or:
- case Instruction::Xor:
- {
- const BinaryOperator *bin_op = dyn_cast<BinaryOperator>(inst);
-
- if (!bin_op)
- {
- if (log)
- log->Printf("getOpcode() returns %s, but instruction is not a BinaryOperator", inst->getOpcodeName());
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- Value *lhs = inst->getOperand(0);
- Value *rhs = inst->getOperand(1);
-
- lldb_private::Scalar L;
- lldb_private::Scalar R;
-
- if (!frame.EvaluateValue(L, lhs, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(lhs).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- if (!frame.EvaluateValue(R, rhs, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(rhs).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- lldb_private::Scalar result;
-
- switch (inst->getOpcode())
- {
- default:
- break;
- case Instruction::Add:
- result = L + R;
- break;
- case Instruction::Mul:
- result = L * R;
- break;
- case Instruction::Sub:
- result = L - R;
- break;
- case Instruction::SDiv:
- L.MakeSigned();
- R.MakeSigned();
- result = L / R;
- break;
- case Instruction::UDiv:
- L.MakeUnsigned();
- R.MakeUnsigned();
- result = L / R;
- break;
- case Instruction::SRem:
- L.MakeSigned();
- R.MakeSigned();
- result = L % R;
- break;
- case Instruction::URem:
- L.MakeUnsigned();
- R.MakeUnsigned();
- result = L % R;
- break;
- case Instruction::Shl:
- result = L << R;
- break;
- case Instruction::AShr:
- result = L >> R;
- break;
- case Instruction::LShr:
- result = L;
- result.ShiftRightLogical(R);
- break;
- case Instruction::And:
- result = L & R;
- break;
- case Instruction::Or:
- result = L | R;
- break;
- case Instruction::Xor:
- result = L ^ R;
- break;
- }
-
- frame.AssignValue(inst, result, module);
-
- if (log)
- {
- log->Printf("Interpreted a %s", inst->getOpcodeName());
- log->Printf(" L : %s", frame.SummarizeValue(lhs).c_str());
- log->Printf(" R : %s", frame.SummarizeValue(rhs).c_str());
- log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
- }
- }
- break;
- case Instruction::Alloca:
- {
- const AllocaInst *alloca_inst = dyn_cast<AllocaInst>(inst);
-
- if (!alloca_inst)
- {
- if (log)
- log->Printf("getOpcode() returns Alloca, but instruction is not an AllocaInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- if (alloca_inst->isArrayAllocation())
- {
- if (log)
- log->Printf("AllocaInsts are not handled if isArrayAllocation() is true");
- error.SetErrorToGenericError();
- error.SetErrorString(unsupported_opcode_error);
- return false;
- }
-
- // The semantics of Alloca are:
- // Create a region R of virtual memory of type T, backed by a data buffer
- // Create a region P of virtual memory of type T*, backed by a data buffer
- // Write the virtual address of R into P
-
- Type *T = alloca_inst->getAllocatedType();
- Type *Tptr = alloca_inst->getType();
-
- lldb::addr_t R = frame.Malloc(T);
-
- if (R == LLDB_INVALID_ADDRESS)
- {
- if (log)
- log->Printf("Couldn't allocate memory for an AllocaInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_allocation_error);
- return false;
- }
-
- lldb::addr_t P = frame.Malloc(Tptr);
-
- if (P == LLDB_INVALID_ADDRESS)
- {
- if (log)
- log->Printf("Couldn't allocate the result pointer for an AllocaInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_allocation_error);
- return false;
- }
-
- lldb_private::Error write_error;
-
- execution_unit.WritePointerToMemory(P, R, write_error);
-
- if (!write_error.Success())
- {
- if (log)
- log->Printf("Couldn't write the result pointer for an AllocaInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_write_error);
- lldb_private::Error free_error;
- execution_unit.Free(P, free_error);
- execution_unit.Free(R, free_error);
- return false;
- }
-
- frame.m_values[alloca_inst] = P;
-
- if (log)
- {
- log->Printf("Interpreted an AllocaInst");
- log->Printf(" R : 0x%" PRIx64, R);
- log->Printf(" P : 0x%" PRIx64, P);
- }
- }
- break;
- case Instruction::BitCast:
- case Instruction::ZExt:
- {
- const CastInst *cast_inst = dyn_cast<CastInst>(inst);
-
- if (!cast_inst)
- {
- if (log)
- log->Printf("getOpcode() returns %s, but instruction is not a BitCastInst", cast_inst->getOpcodeName());
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- Value *source = cast_inst->getOperand(0);
-
- lldb_private::Scalar S;
-
- if (!frame.EvaluateValue(S, source, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(source).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
+ lldb::addr_t R;
+ lldb_private::Error read_error;
+ execution_unit.ReadPointerFromMemory(&R, P, read_error);
- frame.AssignValue(inst, S, module);
- }
- break;
- case Instruction::SExt:
- {
- const CastInst *cast_inst = dyn_cast<CastInst>(inst);
-
- if (!cast_inst)
- {
- if (log)
- log->Printf("getOpcode() returns %s, but instruction is not a BitCastInst", cast_inst->getOpcodeName());
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- Value *source = cast_inst->getOperand(0);
-
- lldb_private::Scalar S;
-
- if (!frame.EvaluateValue(S, source, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(source).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
+ if (!read_error.Success()) {
+ if (log)
+ log->Printf("Couldn't read the address to be loaded for a LoadInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_read_error);
+ return false;
+ }
- S.MakeSigned();
+ size_t target_size = data_layout.getTypeStoreSize(target_ty);
+ lldb_private::DataBufferHeap buffer(target_size, 0);
- lldb_private::Scalar S_signextend(S.SLongLong());
+ read_error.Clear();
+ execution_unit.ReadMemory(buffer.GetBytes(), D, buffer.GetByteSize(),
+ read_error);
+ if (!read_error.Success()) {
+ if (log)
+ log->Printf("Couldn't read from a region on behalf of a StoreInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_read_error);
+ return false;
+ }
- frame.AssignValue(inst, S_signextend, module);
- }
- break;
- case Instruction::Br:
- {
- const BranchInst *br_inst = dyn_cast<BranchInst>(inst);
-
- if (!br_inst)
- {
- if (log)
- log->Printf("getOpcode() returns Br, but instruction is not a BranchInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- if (br_inst->isConditional())
- {
- Value *condition = br_inst->getCondition();
-
- lldb_private::Scalar C;
-
- if (!frame.EvaluateValue(C, condition, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(condition).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- if (!C.IsZero())
- frame.Jump(br_inst->getSuccessor(0));
- else
- frame.Jump(br_inst->getSuccessor(1));
-
- if (log)
- {
- log->Printf("Interpreted a BrInst with a condition");
- log->Printf(" cond : %s", frame.SummarizeValue(condition).c_str());
- }
- }
- else
- {
- frame.Jump(br_inst->getSuccessor(0));
-
- if (log)
- {
- log->Printf("Interpreted a BrInst with no condition");
- }
- }
- }
- continue;
- case Instruction::PHI:
- {
- const PHINode *phi_inst = dyn_cast<PHINode>(inst);
-
- if (!phi_inst)
- {
- if (log)
- log->Printf("getOpcode() returns PHI, but instruction is not a PHINode");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
- if (!frame.m_prev_bb)
- {
- if (log)
- log->Printf("Encountered PHI node without having jumped from another basic block");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- Value* value = phi_inst->getIncomingValueForBlock(frame.m_prev_bb);
- lldb_private::Scalar result;
- if (!frame.EvaluateValue(result, value, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(value).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
- frame.AssignValue(inst, result, module);
-
- if (log)
- {
- log->Printf("Interpreted a %s", inst->getOpcodeName());
- log->Printf(" Incoming value : %s", frame.SummarizeValue(value).c_str());
- }
- }
- break;
- case Instruction::GetElementPtr:
- {
- const GetElementPtrInst *gep_inst = dyn_cast<GetElementPtrInst>(inst);
-
- if (!gep_inst)
- {
- if (log)
- log->Printf("getOpcode() returns GetElementPtr, but instruction is not a GetElementPtrInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- const Value *pointer_operand = gep_inst->getPointerOperand();
- Type *src_elem_ty = gep_inst->getSourceElementType();
-
- lldb_private::Scalar P;
-
- if (!frame.EvaluateValue(P, pointer_operand, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(pointer_operand).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- typedef SmallVector <Value *, 8> IndexVector;
- typedef IndexVector::iterator IndexIterator;
-
- SmallVector <Value *, 8> indices (gep_inst->idx_begin(),
- gep_inst->idx_end());
-
- SmallVector <Value *, 8> const_indices;
-
- for (IndexIterator ii = indices.begin(), ie = indices.end();
- ii != ie;
- ++ii)
- {
- ConstantInt *constant_index = dyn_cast<ConstantInt>(*ii);
-
- if (!constant_index)
- {
- lldb_private::Scalar I;
-
- if (!frame.EvaluateValue(I, *ii, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(*ii).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- if (log)
- log->Printf("Evaluated constant index %s as %llu", PrintValue(*ii).c_str(), I.ULongLong(LLDB_INVALID_ADDRESS));
-
- constant_index = cast<ConstantInt>(ConstantInt::get((*ii)->getType(), I.ULongLong(LLDB_INVALID_ADDRESS)));
- }
-
- const_indices.push_back(constant_index);
- }
-
- uint64_t offset = data_layout.getIndexedOffsetInType(src_elem_ty, const_indices);
-
- lldb_private::Scalar Poffset = P + offset;
-
- frame.AssignValue(inst, Poffset, module);
-
- if (log)
- {
- log->Printf("Interpreted a GetElementPtrInst");
- log->Printf(" P : %s", frame.SummarizeValue(pointer_operand).c_str());
- log->Printf(" Poffset : %s", frame.SummarizeValue(inst).c_str());
- }
- }
- break;
- case Instruction::ICmp:
- {
- const ICmpInst *icmp_inst = dyn_cast<ICmpInst>(inst);
-
- if (!icmp_inst)
- {
- if (log)
- log->Printf("getOpcode() returns ICmp, but instruction is not an ICmpInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- CmpInst::Predicate predicate = icmp_inst->getPredicate();
-
- Value *lhs = inst->getOperand(0);
- Value *rhs = inst->getOperand(1);
-
- lldb_private::Scalar L;
- lldb_private::Scalar R;
-
- if (!frame.EvaluateValue(L, lhs, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(lhs).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- if (!frame.EvaluateValue(R, rhs, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(rhs).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- lldb_private::Scalar result;
-
- switch (predicate)
- {
- default:
- return false;
- case CmpInst::ICMP_EQ:
- result = (L == R);
- break;
- case CmpInst::ICMP_NE:
- result = (L != R);
- break;
- case CmpInst::ICMP_UGT:
- L.MakeUnsigned();
- R.MakeUnsigned();
- result = (L > R);
- break;
- case CmpInst::ICMP_UGE:
- L.MakeUnsigned();
- R.MakeUnsigned();
- result = (L >= R);
- break;
- case CmpInst::ICMP_ULT:
- L.MakeUnsigned();
- R.MakeUnsigned();
- result = (L < R);
- break;
- case CmpInst::ICMP_ULE:
- L.MakeUnsigned();
- R.MakeUnsigned();
- result = (L <= R);
- break;
- case CmpInst::ICMP_SGT:
- L.MakeSigned();
- R.MakeSigned();
- result = (L > R);
- break;
- case CmpInst::ICMP_SGE:
- L.MakeSigned();
- R.MakeSigned();
- result = (L >= R);
- break;
- case CmpInst::ICMP_SLT:
- L.MakeSigned();
- R.MakeSigned();
- result = (L < R);
- break;
- case CmpInst::ICMP_SLE:
- L.MakeSigned();
- R.MakeSigned();
- result = (L <= R);
- break;
- }
-
- frame.AssignValue(inst, result, module);
-
- if (log)
- {
- log->Printf("Interpreted an ICmpInst");
- log->Printf(" L : %s", frame.SummarizeValue(lhs).c_str());
- log->Printf(" R : %s", frame.SummarizeValue(rhs).c_str());
- log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
- }
- }
- break;
- case Instruction::IntToPtr:
- {
- const IntToPtrInst *int_to_ptr_inst = dyn_cast<IntToPtrInst>(inst);
-
- if (!int_to_ptr_inst)
- {
- if (log)
- log->Printf("getOpcode() returns IntToPtr, but instruction is not an IntToPtrInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- Value *src_operand = int_to_ptr_inst->getOperand(0);
-
- lldb_private::Scalar I;
-
- if (!frame.EvaluateValue(I, src_operand, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(src_operand).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- frame.AssignValue(inst, I, module);
-
- if (log)
- {
- log->Printf("Interpreted an IntToPtr");
- log->Printf(" Src : %s", frame.SummarizeValue(src_operand).c_str());
- log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
- }
- }
- break;
- case Instruction::PtrToInt:
- {
- const PtrToIntInst *ptr_to_int_inst = dyn_cast<PtrToIntInst>(inst);
-
- if (!ptr_to_int_inst)
- {
- if (log)
- log->Printf("getOpcode() returns PtrToInt, but instruction is not an PtrToIntInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- Value *src_operand = ptr_to_int_inst->getOperand(0);
-
- lldb_private::Scalar I;
-
- if (!frame.EvaluateValue(I, src_operand, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(src_operand).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- frame.AssignValue(inst, I, module);
-
- if (log)
- {
- log->Printf("Interpreted a PtrToInt");
- log->Printf(" Src : %s", frame.SummarizeValue(src_operand).c_str());
- log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
- }
- }
- break;
- case Instruction::Trunc:
- {
- const TruncInst *trunc_inst = dyn_cast<TruncInst>(inst);
-
- if (!trunc_inst)
- {
- if (log)
- log->Printf("getOpcode() returns Trunc, but instruction is not a TruncInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- Value *src_operand = trunc_inst->getOperand(0);
-
- lldb_private::Scalar I;
-
- if (!frame.EvaluateValue(I, src_operand, module))
- {
- if (log)
- log->Printf("Couldn't evaluate %s", PrintValue(src_operand).c_str());
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- frame.AssignValue(inst, I, module);
-
- if (log)
- {
- log->Printf("Interpreted a Trunc");
- log->Printf(" Src : %s", frame.SummarizeValue(src_operand).c_str());
- log->Printf(" = : %s", frame.SummarizeValue(inst).c_str());
- }
- }
- break;
- case Instruction::Load:
- {
- const LoadInst *load_inst = dyn_cast<LoadInst>(inst);
-
- if (!load_inst)
- {
- if (log)
- log->Printf("getOpcode() returns Load, but instruction is not a LoadInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- // The semantics of Load are:
- // Create a region D that will contain the loaded data
- // Resolve the region P containing a pointer
- // Dereference P to get the region R that the data should be loaded from
- // Transfer a unit of type type(D) from R to D
-
- const Value *pointer_operand = load_inst->getPointerOperand();
-
- Type *pointer_ty = pointer_operand->getType();
- PointerType *pointer_ptr_ty = dyn_cast<PointerType>(pointer_ty);
- if (!pointer_ptr_ty)
- {
- if (log)
- log->Printf("getPointerOperand()->getType() is not a PointerType");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
- Type *target_ty = pointer_ptr_ty->getElementType();
-
- lldb::addr_t D = frame.ResolveValue(load_inst, module);
- lldb::addr_t P = frame.ResolveValue(pointer_operand, module);
-
- if (D == LLDB_INVALID_ADDRESS)
- {
- if (log)
- log->Printf("LoadInst's value doesn't resolve to anything");
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- if (P == LLDB_INVALID_ADDRESS)
- {
- if (log)
- log->Printf("LoadInst's pointer doesn't resolve to anything");
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- lldb::addr_t R;
- lldb_private::Error read_error;
- execution_unit.ReadPointerFromMemory(&R, P, read_error);
-
- if (!read_error.Success())
- {
- if (log)
- log->Printf("Couldn't read the address to be loaded for a LoadInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_read_error);
- return false;
- }
-
- size_t target_size = data_layout.getTypeStoreSize(target_ty);
- lldb_private::DataBufferHeap buffer(target_size, 0);
-
- read_error.Clear();
- execution_unit.ReadMemory(buffer.GetBytes(), R, buffer.GetByteSize(), read_error);
- if (!read_error.Success())
- {
- if (log)
- log->Printf("Couldn't read from a region on behalf of a LoadInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_read_error);
- return false;
- }
-
- lldb_private::Error write_error;
- execution_unit.WriteMemory(D, buffer.GetBytes(), buffer.GetByteSize(), write_error);
- if (!write_error.Success())
- {
- if (log)
- log->Printf("Couldn't write to a region on behalf of a LoadInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_read_error);
- return false;
- }
-
- if (log)
- {
- log->Printf("Interpreted a LoadInst");
- log->Printf(" P : 0x%" PRIx64, P);
- log->Printf(" R : 0x%" PRIx64, R);
- log->Printf(" D : 0x%" PRIx64, D);
- }
- }
- break;
- case Instruction::Ret:
- {
- return true;
- }
- case Instruction::Store:
- {
- const StoreInst *store_inst = dyn_cast<StoreInst>(inst);
-
- if (!store_inst)
- {
- if (log)
- log->Printf("getOpcode() returns Store, but instruction is not a StoreInst");
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- // The semantics of Store are:
- // Resolve the region D containing the data to be stored
- // Resolve the region P containing a pointer
- // Dereference P to get the region R that the data should be stored in
- // Transfer a unit of type type(D) from D to R
-
- const Value *value_operand = store_inst->getValueOperand();
- const Value *pointer_operand = store_inst->getPointerOperand();
-
- Type *pointer_ty = pointer_operand->getType();
- PointerType *pointer_ptr_ty = dyn_cast<PointerType>(pointer_ty);
- if (!pointer_ptr_ty)
- return false;
- Type *target_ty = pointer_ptr_ty->getElementType();
-
- lldb::addr_t D = frame.ResolveValue(value_operand, module);
- lldb::addr_t P = frame.ResolveValue(pointer_operand, module);
-
- if (D == LLDB_INVALID_ADDRESS)
- {
- if (log)
- log->Printf("StoreInst's value doesn't resolve to anything");
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- if (P == LLDB_INVALID_ADDRESS)
- {
- if (log)
- log->Printf("StoreInst's pointer doesn't resolve to anything");
- error.SetErrorToGenericError();
- error.SetErrorString(bad_value_error);
- return false;
- }
-
- lldb::addr_t R;
- lldb_private::Error read_error;
- execution_unit.ReadPointerFromMemory(&R, P, read_error);
-
- if (!read_error.Success())
- {
- if (log)
- log->Printf("Couldn't read the address to be loaded for a LoadInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_read_error);
- return false;
- }
-
- size_t target_size = data_layout.getTypeStoreSize(target_ty);
- lldb_private::DataBufferHeap buffer(target_size, 0);
-
- read_error.Clear();
- execution_unit.ReadMemory(buffer.GetBytes(), D, buffer.GetByteSize(), read_error);
- if (!read_error.Success())
- {
- if (log)
- log->Printf("Couldn't read from a region on behalf of a StoreInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_read_error);
- return false;
- }
-
- lldb_private::Error write_error;
- execution_unit.WriteMemory(R, buffer.GetBytes(), buffer.GetByteSize(), write_error);
- if (!write_error.Success())
- {
- if (log)
- log->Printf("Couldn't write to a region on behalf of a StoreInst");
- error.SetErrorToGenericError();
- error.SetErrorString(memory_write_error);
- return false;
- }
-
- if (log)
- {
- log->Printf("Interpreted a StoreInst");
- log->Printf(" D : 0x%" PRIx64, D);
- log->Printf(" P : 0x%" PRIx64, P);
- log->Printf(" R : 0x%" PRIx64, R);
- }
- }
- break;
- case Instruction::Call:
- {
- const CallInst *call_inst = dyn_cast<CallInst>(inst);
-
- if (!call_inst)
- {
- if (log)
- log->Printf("getOpcode() returns %s, but instruction is not a CallInst", inst->getOpcodeName());
- error.SetErrorToGenericError();
- error.SetErrorString(interpreter_internal_error);
- return false;
- }
-
- if (CanIgnoreCall(call_inst))
- break;
-
- // Get the return type
- llvm::Type *returnType = call_inst->getType();
- if (returnType == nullptr)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("unable to access return type");
- return false;
- }
-
- // Work with void, integer and pointer return types
- if (!returnType->isVoidTy() &&
- !returnType->isIntegerTy() &&
- !returnType->isPointerTy())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("return type is not supported");
- return false;
- }
-
- // Check we can actually get a thread
- if (exe_ctx.GetThreadPtr() == nullptr)
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("unable to acquire thread");
- return false;
- }
-
- // Make sure we have a valid process
- if (!exe_ctx.GetProcessPtr())
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("unable to get the process");
- return false;
- }
-
- // Find the address of the callee function
- lldb_private::Scalar I;
- const llvm::Value *val = call_inst->getCalledValue();
-
- if (!frame.EvaluateValue(I, val, module))
- {
- error.SetErrorToGenericError();
- error.SetErrorString("unable to get address of function");
- return false;
- }
- lldb_private::Address funcAddr(I.ULongLong(LLDB_INVALID_ADDRESS));
-
- lldb_private::DiagnosticManager diagnostics;
- lldb_private::EvaluateExpressionOptions options;
-
- // We generally receive a function pointer which we must dereference
- llvm::Type* prototype = val->getType();
- if (!prototype->isPointerTy())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("call need function pointer");
- return false;
- }
-
- // Dereference the function pointer
- prototype = prototype->getPointerElementType();
- if (!(prototype->isFunctionTy() || prototype->isFunctionVarArg()))
- {
- error.SetErrorToGenericError();
- error.SetErrorString("call need function pointer");
- return false;
- }
-
- // Find number of arguments
- const int numArgs = call_inst->getNumArgOperands();
-
- // We work with a fixed array of 16 arguments which is our upper limit
- static lldb_private::ABI::CallArgument rawArgs[16];
- if (numArgs >= 16)
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("function takes too many arguments");
- return false;
- }
-
- // Push all function arguments to the argument list that will
- // be passed to the call function thread plan
- for (int i = 0; i < numArgs; i++)
- {
- // Get details of this argument
- llvm::Value *arg_op = call_inst->getArgOperand(i);
- llvm::Type *arg_ty = arg_op->getType();
-
- // Ensure that this argument is an supported type
- if (!arg_ty->isIntegerTy() && !arg_ty->isPointerTy())
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("argument %d must be integer type", i);
- return false;
- }
-
- // Extract the arguments value
- lldb_private::Scalar tmp_op = 0;
- if (!frame.EvaluateValue(tmp_op, arg_op, module))
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("unable to evaluate argument %d", i);
- return false;
- }
-
- // Check if this is a string literal or constant string pointer
- if (arg_ty->isPointerTy())
- {
- // Pointer to just one type
- assert(arg_ty->getNumContainedTypes() == 1);
-
- lldb::addr_t addr = tmp_op.ULongLong();
- size_t dataSize = 0;
-
- if (execution_unit.GetAllocSize(addr, dataSize))
- {
- // Create the required buffer
- rawArgs[i].size = dataSize;
- rawArgs[i].data_ap.reset(new uint8_t[dataSize + 1]);
-
- // Read string from host memory
- execution_unit.ReadMemory(rawArgs[i].data_ap.get(), addr, dataSize, error);
- if (error.Fail())
- {
- assert(!"we have failed to read the string from memory");
- return false;
- }
- // Add null terminator
- rawArgs[i].data_ap[dataSize] = '\0';
- rawArgs[i].type = lldb_private::ABI::CallArgument::HostPointer;
- }
- else
- {
- assert(!"unable to locate host data for transfer to device");
- return false;
- }
- }
- else /* if ( arg_ty->isPointerTy() ) */
- {
- rawArgs[i].type = lldb_private::ABI::CallArgument::TargetValue;
- // Get argument size in bytes
- rawArgs[i].size = arg_ty->getIntegerBitWidth() / 8;
- // Push value into argument list for thread plan
- rawArgs[i].value = tmp_op.ULongLong();
- }
-
- }
-
- // Pack the arguments into an llvm::array
- llvm::ArrayRef<lldb_private::ABI::CallArgument> args(rawArgs, numArgs);
-
- // Setup a thread plan to call the target function
- lldb::ThreadPlanSP call_plan_sp(new lldb_private::ThreadPlanCallFunctionUsingABI(
- exe_ctx.GetThreadRef(), funcAddr, *prototype, *returnType, args, options));
-
- // Check if the plan is valid
- lldb_private::StreamString ss;
- if (!call_plan_sp || !call_plan_sp->ValidatePlan(&ss))
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("unable to make ThreadPlanCallFunctionUsingABI for 0x%llx",
- I.ULongLong());
- return false;
- }
-
- exe_ctx.GetProcessPtr()->SetRunningUserExpression(true);
-
- // Execute the actual function call thread plan
- lldb::ExpressionResults res =
- exe_ctx.GetProcessRef().RunThreadPlan(exe_ctx, call_plan_sp, options, diagnostics);
-
- // Check that the thread plan completed successfully
- if (res != lldb::ExpressionResults::eExpressionCompleted)
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("ThreadPlanCallFunctionUsingABI failed");
- return false;
- }
-
- exe_ctx.GetProcessPtr()->SetRunningUserExpression(false);
-
- // Void return type
- if (returnType->isVoidTy())
- {
- // Cant assign to void types, so we leave the frame untouched
- }
- else
- // Integer or pointer return type
- if (returnType->isIntegerTy() || returnType->isPointerTy())
- {
- // Get the encapsulated return value
- lldb::ValueObjectSP retVal = call_plan_sp.get()->GetReturnValueObject();
-
- lldb_private::Scalar returnVal = -1;
- lldb_private::ValueObject *vobj = retVal.get();
-
- // Check if the return value is valid
- if (vobj == nullptr || retVal.empty())
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("unable to get the return value");
- return false;
- }
-
- // Extract the return value as a integer
- lldb_private::Value & value = vobj->GetValue();
- returnVal = value.GetScalar();
-
- // Push the return value as the result
- frame.AssignValue(inst, returnVal, module);
- }
- }
- break;
+ lldb_private::Error write_error;
+ execution_unit.WriteMemory(R, buffer.GetBytes(), buffer.GetByteSize(),
+ write_error);
+ if (!write_error.Success()) {
+ if (log)
+ log->Printf("Couldn't write to a region on behalf of a StoreInst");
+ error.SetErrorToGenericError();
+ error.SetErrorString(memory_write_error);
+ return false;
+ }
+
+ if (log) {
+ log->Printf("Interpreted a StoreInst");
+ log->Printf(" D : 0x%" PRIx64, D);
+ log->Printf(" P : 0x%" PRIx64, P);
+ log->Printf(" R : 0x%" PRIx64, R);
+ }
+ } break;
+ case Instruction::Call: {
+ const CallInst *call_inst = dyn_cast<CallInst>(inst);
+
+ if (!call_inst) {
+ if (log)
+ log->Printf(
+ "getOpcode() returns %s, but instruction is not a CallInst",
+ inst->getOpcodeName());
+ error.SetErrorToGenericError();
+ error.SetErrorString(interpreter_internal_error);
+ return false;
+ }
+
+ if (CanIgnoreCall(call_inst))
+ break;
+
+ // Get the return type
+ llvm::Type *returnType = call_inst->getType();
+ if (returnType == nullptr) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("unable to access return type");
+ return false;
+ }
+
+ // Work with void, integer and pointer return types
+ if (!returnType->isVoidTy() && !returnType->isIntegerTy() &&
+ !returnType->isPointerTy()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("return type is not supported");
+ return false;
+ }
+
+ // Check we can actually get a thread
+ if (exe_ctx.GetThreadPtr() == nullptr) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("unable to acquire thread");
+ return false;
+ }
+
+ // Make sure we have a valid process
+ if (!exe_ctx.GetProcessPtr()) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("unable to get the process");
+ return false;
+ }
+
+ // Find the address of the callee function
+ lldb_private::Scalar I;
+ const llvm::Value *val = call_inst->getCalledValue();
+
+ if (!frame.EvaluateValue(I, val, module)) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("unable to get address of function");
+ return false;
+ }
+ lldb_private::Address funcAddr(I.ULongLong(LLDB_INVALID_ADDRESS));
+
+ lldb_private::DiagnosticManager diagnostics;
+ lldb_private::EvaluateExpressionOptions options;
+
+ // We generally receive a function pointer which we must dereference
+ llvm::Type *prototype = val->getType();
+ if (!prototype->isPointerTy()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("call need function pointer");
+ return false;
+ }
+
+ // Dereference the function pointer
+ prototype = prototype->getPointerElementType();
+ if (!(prototype->isFunctionTy() || prototype->isFunctionVarArg())) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("call need function pointer");
+ return false;
+ }
+
+ // Find number of arguments
+ const int numArgs = call_inst->getNumArgOperands();
+
+ // We work with a fixed array of 16 arguments which is our upper limit
+ static lldb_private::ABI::CallArgument rawArgs[16];
+ if (numArgs >= 16) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("function takes too many arguments");
+ return false;
+ }
+
+ // Push all function arguments to the argument list that will
+ // be passed to the call function thread plan
+ for (int i = 0; i < numArgs; i++) {
+ // Get details of this argument
+ llvm::Value *arg_op = call_inst->getArgOperand(i);
+ llvm::Type *arg_ty = arg_op->getType();
+
+ // Ensure that this argument is an supported type
+ if (!arg_ty->isIntegerTy() && !arg_ty->isPointerTy()) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("argument %d must be integer type", i);
+ return false;
}
- ++frame.m_ii;
- }
+ // Extract the arguments value
+ lldb_private::Scalar tmp_op = 0;
+ if (!frame.EvaluateValue(tmp_op, arg_op, module)) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("unable to evaluate argument %d", i);
+ return false;
+ }
+
+ // Check if this is a string literal or constant string pointer
+ if (arg_ty->isPointerTy()) {
+ // Pointer to just one type
+ assert(arg_ty->getNumContainedTypes() == 1);
+
+ lldb::addr_t addr = tmp_op.ULongLong();
+ size_t dataSize = 0;
+
+ if (execution_unit.GetAllocSize(addr, dataSize)) {
+ // Create the required buffer
+ rawArgs[i].size = dataSize;
+ rawArgs[i].data_ap.reset(new uint8_t[dataSize + 1]);
+
+ // Read string from host memory
+ execution_unit.ReadMemory(rawArgs[i].data_ap.get(), addr, dataSize,
+ error);
+ if (error.Fail()) {
+ assert(!"we have failed to read the string from memory");
+ return false;
+ }
+ // Add null terminator
+ rawArgs[i].data_ap[dataSize] = '\0';
+ rawArgs[i].type = lldb_private::ABI::CallArgument::HostPointer;
+ } else {
+ assert(!"unable to locate host data for transfer to device");
+ return false;
+ }
+ } else /* if ( arg_ty->isPointerTy() ) */
+ {
+ rawArgs[i].type = lldb_private::ABI::CallArgument::TargetValue;
+ // Get argument size in bytes
+ rawArgs[i].size = arg_ty->getIntegerBitWidth() / 8;
+ // Push value into argument list for thread plan
+ rawArgs[i].value = tmp_op.ULongLong();
+ }
+ }
- if (num_insts >= 4096)
- {
+ // Pack the arguments into an llvm::array
+ llvm::ArrayRef<lldb_private::ABI::CallArgument> args(rawArgs, numArgs);
+
+ // Setup a thread plan to call the target function
+ lldb::ThreadPlanSP call_plan_sp(
+ new lldb_private::ThreadPlanCallFunctionUsingABI(
+ exe_ctx.GetThreadRef(), funcAddr, *prototype, *returnType, args,
+ options));
+
+ // Check if the plan is valid
+ lldb_private::StreamString ss;
+ if (!call_plan_sp || !call_plan_sp->ValidatePlan(&ss)) {
error.SetErrorToGenericError();
- error.SetErrorString(infinite_loop_error);
+ error.SetErrorStringWithFormat(
+ "unable to make ThreadPlanCallFunctionUsingABI for 0x%llx",
+ I.ULongLong());
return false;
- }
+ }
+ exe_ctx.GetProcessPtr()->SetRunningUserExpression(true);
+
+ // Execute the actual function call thread plan
+ lldb::ExpressionResults res = exe_ctx.GetProcessRef().RunThreadPlan(
+ exe_ctx, call_plan_sp, options, diagnostics);
+
+ // Check that the thread plan completed successfully
+ if (res != lldb::ExpressionResults::eExpressionCompleted) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("ThreadPlanCallFunctionUsingABI failed");
+ return false;
+ }
+
+ exe_ctx.GetProcessPtr()->SetRunningUserExpression(false);
+
+ // Void return type
+ if (returnType->isVoidTy()) {
+ // Cant assign to void types, so we leave the frame untouched
+ } else
+ // Integer or pointer return type
+ if (returnType->isIntegerTy() || returnType->isPointerTy()) {
+ // Get the encapsulated return value
+ lldb::ValueObjectSP retVal = call_plan_sp.get()->GetReturnValueObject();
+
+ lldb_private::Scalar returnVal = -1;
+ lldb_private::ValueObject *vobj = retVal.get();
+
+ // Check if the return value is valid
+ if (vobj == nullptr || retVal.empty()) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat("unable to get the return value");
+ return false;
+ }
+
+ // Extract the return value as a integer
+ lldb_private::Value &value = vobj->GetValue();
+ returnVal = value.GetScalar();
+
+ // Push the return value as the result
+ frame.AssignValue(inst, returnVal, module);
+ }
+ } break;
+ }
+
+ ++frame.m_ii;
+ }
+
+ if (num_insts >= 4096) {
+ error.SetErrorToGenericError();
+ error.SetErrorString(infinite_loop_error);
return false;
+ }
+
+ return false;
}
Modified: lldb/trunk/source/Expression/IRMemoryMap.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/IRMemoryMap.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/IRMemoryMap.cpp (original)
+++ lldb/trunk/source/Expression/IRMemoryMap.cpp Tue Sep 6 15:57:50 2016
@@ -7,12 +7,12 @@
//
//===----------------------------------------------------------------------===//
+#include "lldb/Expression/IRMemoryMap.h"
#include "lldb/Core/DataBufferHeap.h"
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Scalar.h"
-#include "lldb/Expression/IRMemoryMap.h"
#include "lldb/Target/MemoryRegionInfo.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
@@ -20,223 +20,204 @@
using namespace lldb_private;
-IRMemoryMap::IRMemoryMap (lldb::TargetSP target_sp) :
- m_target_wp(target_sp)
-{
- if (target_sp)
- m_process_wp = target_sp->GetProcessSP();
+IRMemoryMap::IRMemoryMap(lldb::TargetSP target_sp) : m_target_wp(target_sp) {
+ if (target_sp)
+ m_process_wp = target_sp->GetProcessSP();
}
-IRMemoryMap::~IRMemoryMap ()
-{
- lldb::ProcessSP process_sp = m_process_wp.lock();
+IRMemoryMap::~IRMemoryMap() {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
- if (process_sp)
- {
- AllocationMap::iterator iter;
+ if (process_sp) {
+ AllocationMap::iterator iter;
- Error err;
+ Error err;
- while ((iter = m_allocations.begin()) != m_allocations.end())
- {
- err.Clear();
- if (iter->second.m_leak)
- m_allocations.erase(iter);
- else
- Free(iter->first, err);
- }
+ while ((iter = m_allocations.begin()) != m_allocations.end()) {
+ err.Clear();
+ if (iter->second.m_leak)
+ m_allocations.erase(iter);
+ else
+ Free(iter->first, err);
}
+ }
}
-lldb::addr_t
-IRMemoryMap::FindSpace (size_t size)
-{
- // The FindSpace algorithm's job is to find a region of memory that the
- // underlying process is unlikely to be using.
- //
- // The memory returned by this function will never be written to. The only
- // point is that it should not shadow process memory if possible, so that
- // expressions processing real values from the process do not use the
- // wrong data.
- //
- // If the process can in fact allocate memory (CanJIT() lets us know this)
- // then this can be accomplished just be allocating memory in the inferior.
- // Then no guessing is required.
+lldb::addr_t IRMemoryMap::FindSpace(size_t size) {
+ // The FindSpace algorithm's job is to find a region of memory that the
+ // underlying process is unlikely to be using.
+ //
+ // The memory returned by this function will never be written to. The only
+ // point is that it should not shadow process memory if possible, so that
+ // expressions processing real values from the process do not use the
+ // wrong data.
+ //
+ // If the process can in fact allocate memory (CanJIT() lets us know this)
+ // then this can be accomplished just be allocating memory in the inferior.
+ // Then no guessing is required.
- lldb::TargetSP target_sp = m_target_wp.lock();
- lldb::ProcessSP process_sp = m_process_wp.lock();
-
- const bool process_is_alive = process_sp && process_sp->IsAlive();
+ lldb::TargetSP target_sp = m_target_wp.lock();
+ lldb::ProcessSP process_sp = m_process_wp.lock();
- lldb::addr_t ret = LLDB_INVALID_ADDRESS;
- if (size == 0)
- return ret;
+ const bool process_is_alive = process_sp && process_sp->IsAlive();
- if (process_is_alive && process_sp->CanJIT())
- {
- Error alloc_error;
+ lldb::addr_t ret = LLDB_INVALID_ADDRESS;
+ if (size == 0)
+ return ret;
- ret = process_sp->AllocateMemory(size, lldb::ePermissionsReadable | lldb::ePermissionsWritable, alloc_error);
+ if (process_is_alive && process_sp->CanJIT()) {
+ Error alloc_error;
- if (!alloc_error.Success())
- return LLDB_INVALID_ADDRESS;
- else
- return ret;
- }
-
- // At this point we know that we need to hunt.
- //
- // First, go to the end of the existing allocations we've made if there are
- // any allocations. Otherwise start at the beginning of memory.
-
- if (m_allocations.empty())
- {
- ret = 0x0;
- }
- else
- {
- auto back = m_allocations.rbegin();
- lldb::addr_t addr = back->first;
- size_t alloc_size = back->second.m_size;
- ret = llvm::alignTo(addr+alloc_size, 4096);
- }
-
- // Now, if it's possible to use the GetMemoryRegionInfo API to detect mapped
- // regions, walk forward through memory until a region is found that
- // has adequate space for our allocation.
- if (process_is_alive)
- {
- const uint64_t end_of_memory = process_sp->GetAddressByteSize() == 8 ?
- 0xffffffffffffffffull : 0xffffffffull;
-
- lldbassert(process_sp->GetAddressByteSize() == 4 || end_of_memory != 0xffffffffull);
-
- MemoryRegionInfo region_info;
- Error err = process_sp->GetMemoryRegionInfo(ret, region_info);
- if (err.Success())
- {
- while (true)
- {
- if (region_info.GetReadable() != MemoryRegionInfo::OptionalBool::eNo ||
- region_info.GetWritable() != MemoryRegionInfo::OptionalBool::eNo ||
- region_info.GetExecutable() != MemoryRegionInfo::OptionalBool::eNo)
- {
- if (region_info.GetRange().GetRangeEnd() - 1 >= end_of_memory)
- {
- ret = LLDB_INVALID_ADDRESS;
- break;
- }
- else
- {
- ret = region_info.GetRange().GetRangeEnd();
- }
- }
- else if (ret + size < region_info.GetRange().GetRangeEnd())
- {
- return ret;
- }
- else
- {
- // ret stays the same. We just need to walk a bit further.
- }
-
- err = process_sp->GetMemoryRegionInfo(region_info.GetRange().GetRangeEnd(), region_info);
- if (err.Fail())
- {
- lldbassert(!"GetMemoryRegionInfo() succeeded, then failed");
- ret = LLDB_INVALID_ADDRESS;
- break;
- }
- }
- }
- }
-
- // We've tried our algorithm, and it didn't work. Now we have to reset back
- // to the end of the allocations we've already reported, or use a 'sensible'
- // default if this is our first allocation.
-
- if (m_allocations.empty())
- {
- uint32_t address_byte_size = GetAddressByteSize();
- if (address_byte_size != UINT32_MAX)
- {
- switch (address_byte_size)
- {
- case 8:
- ret = 0xffffffff00000000ull;
- break;
- case 4:
- ret = 0xee000000ull;
- break;
- default:
- break;
- }
- }
- }
+ ret = process_sp->AllocateMemory(size, lldb::ePermissionsReadable |
+ lldb::ePermissionsWritable,
+ alloc_error);
+
+ if (!alloc_error.Success())
+ return LLDB_INVALID_ADDRESS;
else
- {
- auto back = m_allocations.rbegin();
- lldb::addr_t addr = back->first;
- size_t alloc_size = back->second.m_size;
- ret = llvm::alignTo(addr+alloc_size, 4096);
+ return ret;
+ }
+
+ // At this point we know that we need to hunt.
+ //
+ // First, go to the end of the existing allocations we've made if there are
+ // any allocations. Otherwise start at the beginning of memory.
+
+ if (m_allocations.empty()) {
+ ret = 0x0;
+ } else {
+ auto back = m_allocations.rbegin();
+ lldb::addr_t addr = back->first;
+ size_t alloc_size = back->second.m_size;
+ ret = llvm::alignTo(addr + alloc_size, 4096);
+ }
+
+ // Now, if it's possible to use the GetMemoryRegionInfo API to detect mapped
+ // regions, walk forward through memory until a region is found that
+ // has adequate space for our allocation.
+ if (process_is_alive) {
+ const uint64_t end_of_memory = process_sp->GetAddressByteSize() == 8
+ ? 0xffffffffffffffffull
+ : 0xffffffffull;
+
+ lldbassert(process_sp->GetAddressByteSize() == 4 ||
+ end_of_memory != 0xffffffffull);
+
+ MemoryRegionInfo region_info;
+ Error err = process_sp->GetMemoryRegionInfo(ret, region_info);
+ if (err.Success()) {
+ while (true) {
+ if (region_info.GetReadable() != MemoryRegionInfo::OptionalBool::eNo ||
+ region_info.GetWritable() != MemoryRegionInfo::OptionalBool::eNo ||
+ region_info.GetExecutable() !=
+ MemoryRegionInfo::OptionalBool::eNo) {
+ if (region_info.GetRange().GetRangeEnd() - 1 >= end_of_memory) {
+ ret = LLDB_INVALID_ADDRESS;
+ break;
+ } else {
+ ret = region_info.GetRange().GetRangeEnd();
+ }
+ } else if (ret + size < region_info.GetRange().GetRangeEnd()) {
+ return ret;
+ } else {
+ // ret stays the same. We just need to walk a bit further.
+ }
+
+ err = process_sp->GetMemoryRegionInfo(
+ region_info.GetRange().GetRangeEnd(), region_info);
+ if (err.Fail()) {
+ lldbassert(!"GetMemoryRegionInfo() succeeded, then failed");
+ ret = LLDB_INVALID_ADDRESS;
+ break;
+ }
+ }
+ }
+ }
+
+ // We've tried our algorithm, and it didn't work. Now we have to reset back
+ // to the end of the allocations we've already reported, or use a 'sensible'
+ // default if this is our first allocation.
+
+ if (m_allocations.empty()) {
+ uint32_t address_byte_size = GetAddressByteSize();
+ if (address_byte_size != UINT32_MAX) {
+ switch (address_byte_size) {
+ case 8:
+ ret = 0xffffffff00000000ull;
+ break;
+ case 4:
+ ret = 0xee000000ull;
+ break;
+ default:
+ break;
+ }
}
+ } else {
+ auto back = m_allocations.rbegin();
+ lldb::addr_t addr = back->first;
+ size_t alloc_size = back->second.m_size;
+ ret = llvm::alignTo(addr + alloc_size, 4096);
+ }
- return ret;
+ return ret;
}
IRMemoryMap::AllocationMap::iterator
-IRMemoryMap::FindAllocation (lldb::addr_t addr, size_t size)
-{
- if (addr == LLDB_INVALID_ADDRESS)
- return m_allocations.end();
-
- AllocationMap::iterator iter = m_allocations.lower_bound (addr);
-
- if (iter == m_allocations.end() ||
- iter->first > addr)
- {
- if (iter == m_allocations.begin())
- return m_allocations.end();
- iter--;
- }
+IRMemoryMap::FindAllocation(lldb::addr_t addr, size_t size) {
+ if (addr == LLDB_INVALID_ADDRESS)
+ return m_allocations.end();
- if (iter->first <= addr && iter->first + iter->second.m_size >= addr + size)
- return iter;
+ AllocationMap::iterator iter = m_allocations.lower_bound(addr);
- return m_allocations.end();
-}
+ if (iter == m_allocations.end() || iter->first > addr) {
+ if (iter == m_allocations.begin())
+ return m_allocations.end();
+ iter--;
+ }
-bool
-IRMemoryMap::IntersectsAllocation (lldb::addr_t addr, size_t size) const
-{
- if (addr == LLDB_INVALID_ADDRESS)
- return false;
-
- AllocationMap::const_iterator iter = m_allocations.lower_bound (addr);
-
- // Since we only know that the returned interval begins at a location greater than or
- // equal to where the given interval begins, it's possible that the given interval
- // intersects either the returned interval or the previous interval. Thus, we need to
- // check both. Note that we only need to check these two intervals. Since all intervals
- // are disjoint it is not possible that an adjacent interval does not intersect, but a
- // non-adjacent interval does intersect.
- if (iter != m_allocations.end()) {
- if (AllocationsIntersect(addr, size, iter->second.m_process_start, iter->second.m_size))
- return true;
- }
-
- if (iter != m_allocations.begin()) {
- --iter;
- if (AllocationsIntersect(addr, size, iter->second.m_process_start, iter->second.m_size))
- return true;
- }
+ if (iter->first <= addr && iter->first + iter->second.m_size >= addr + size)
+ return iter;
- return false;
+ return m_allocations.end();
}
-bool
-IRMemoryMap::AllocationsIntersect(lldb::addr_t addr1, size_t size1, lldb::addr_t addr2, size_t size2) {
- // Given two half open intervals [A, B) and [X, Y), the only 6 permutations that satisfy
+bool IRMemoryMap::IntersectsAllocation(lldb::addr_t addr, size_t size) const {
+ if (addr == LLDB_INVALID_ADDRESS)
+ return false;
+
+ AllocationMap::const_iterator iter = m_allocations.lower_bound(addr);
+
+ // Since we only know that the returned interval begins at a location greater
+ // than or
+ // equal to where the given interval begins, it's possible that the given
+ // interval
+ // intersects either the returned interval or the previous interval. Thus, we
+ // need to
+ // check both. Note that we only need to check these two intervals. Since all
+ // intervals
+ // are disjoint it is not possible that an adjacent interval does not
+ // intersect, but a
+ // non-adjacent interval does intersect.
+ if (iter != m_allocations.end()) {
+ if (AllocationsIntersect(addr, size, iter->second.m_process_start,
+ iter->second.m_size))
+ return true;
+ }
+
+ if (iter != m_allocations.begin()) {
+ --iter;
+ if (AllocationsIntersect(addr, size, iter->second.m_process_start,
+ iter->second.m_size))
+ return true;
+ }
+
+ return false;
+}
+
+bool IRMemoryMap::AllocationsIntersect(lldb::addr_t addr1, size_t size1,
+ lldb::addr_t addr2, size_t size2) {
+ // Given two half open intervals [A, B) and [X, Y), the only 6 permutations
+ // that satisfy
// A<B and X<Y are the following:
// A B X Y
// A X B Y (intersects)
@@ -249,666 +230,615 @@ IRMemoryMap::AllocationsIntersect(lldb::
return (addr2 < (addr1 + size1)) && (addr1 < (addr2 + size2));
}
-lldb::ByteOrder
-IRMemoryMap::GetByteOrder()
-{
- lldb::ProcessSP process_sp = m_process_wp.lock();
+lldb::ByteOrder IRMemoryMap::GetByteOrder() {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
- if (process_sp)
- return process_sp->GetByteOrder();
+ if (process_sp)
+ return process_sp->GetByteOrder();
- lldb::TargetSP target_sp = m_target_wp.lock();
+ lldb::TargetSP target_sp = m_target_wp.lock();
- if (target_sp)
- return target_sp->GetArchitecture().GetByteOrder();
+ if (target_sp)
+ return target_sp->GetArchitecture().GetByteOrder();
+
+ return lldb::eByteOrderInvalid;
+}
+
+uint32_t IRMemoryMap::GetAddressByteSize() {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
+
+ if (process_sp)
+ return process_sp->GetAddressByteSize();
+
+ lldb::TargetSP target_sp = m_target_wp.lock();
+
+ if (target_sp)
+ return target_sp->GetArchitecture().GetAddressByteSize();
+
+ return UINT32_MAX;
+}
+
+ExecutionContextScope *IRMemoryMap::GetBestExecutionContextScope() const {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
+
+ if (process_sp)
+ return process_sp.get();
+
+ lldb::TargetSP target_sp = m_target_wp.lock();
+
+ if (target_sp)
+ return target_sp.get();
+
+ return NULL;
+}
+
+IRMemoryMap::Allocation::Allocation(lldb::addr_t process_alloc,
+ lldb::addr_t process_start, size_t size,
+ uint32_t permissions, uint8_t alignment,
+ AllocationPolicy policy)
+ : m_process_alloc(process_alloc), m_process_start(process_start),
+ m_size(size), m_permissions(permissions), m_alignment(alignment),
+ m_policy(policy), m_leak(false) {
+ switch (policy) {
+ default:
+ assert(0 && "We cannot reach this!");
+ case eAllocationPolicyHostOnly:
+ m_data.SetByteSize(size);
+ memset(m_data.GetBytes(), 0, size);
+ break;
+ case eAllocationPolicyProcessOnly:
+ break;
+ case eAllocationPolicyMirror:
+ m_data.SetByteSize(size);
+ memset(m_data.GetBytes(), 0, size);
+ break;
+ }
+}
+
+lldb::addr_t IRMemoryMap::Malloc(size_t size, uint8_t alignment,
+ uint32_t permissions, AllocationPolicy policy,
+ bool zero_memory, Error &error) {
+ lldb_private::Log *log(
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+ error.Clear();
+
+ lldb::ProcessSP process_sp;
+ lldb::addr_t allocation_address = LLDB_INVALID_ADDRESS;
+ lldb::addr_t aligned_address = LLDB_INVALID_ADDRESS;
+
+ size_t alignment_mask = alignment - 1;
+ size_t allocation_size;
+
+ if (size == 0)
+ allocation_size = alignment;
+ else
+ allocation_size = (size & alignment_mask)
+ ? ((size + alignment) & (~alignment_mask))
+ : size;
+
+ switch (policy) {
+ default:
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't malloc: invalid allocation policy");
+ return LLDB_INVALID_ADDRESS;
+ case eAllocationPolicyHostOnly:
+ allocation_address = FindSpace(allocation_size);
+ if (allocation_address == LLDB_INVALID_ADDRESS) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't malloc: address space is full");
+ return LLDB_INVALID_ADDRESS;
+ }
+ break;
+ case eAllocationPolicyMirror:
+ process_sp = m_process_wp.lock();
+ if (log)
+ log->Printf("IRMemoryMap::%s process_sp=0x%" PRIx64
+ ", process_sp->CanJIT()=%s, process_sp->IsAlive()=%s",
+ __FUNCTION__, (lldb::addr_t)process_sp.get(),
+ process_sp && process_sp->CanJIT() ? "true" : "false",
+ process_sp && process_sp->IsAlive() ? "true" : "false");
+ if (process_sp && process_sp->CanJIT() && process_sp->IsAlive()) {
+ if (!zero_memory)
+ allocation_address =
+ process_sp->AllocateMemory(allocation_size, permissions, error);
+ else
+ allocation_address =
+ process_sp->CallocateMemory(allocation_size, permissions, error);
- return lldb::eByteOrderInvalid;
-}
+ if (!error.Success())
+ return LLDB_INVALID_ADDRESS;
+ } else {
+ if (log)
+ log->Printf("IRMemoryMap::%s switching to eAllocationPolicyHostOnly "
+ "due to failed condition (see previous expr log message)",
+ __FUNCTION__);
+ policy = eAllocationPolicyHostOnly;
+ allocation_address = FindSpace(allocation_size);
+ if (allocation_address == LLDB_INVALID_ADDRESS) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't malloc: address space is full");
+ return LLDB_INVALID_ADDRESS;
+ }
+ }
+ break;
+ case eAllocationPolicyProcessOnly:
+ process_sp = m_process_wp.lock();
+ if (process_sp) {
+ if (process_sp->CanJIT() && process_sp->IsAlive()) {
+ if (!zero_memory)
+ allocation_address =
+ process_sp->AllocateMemory(allocation_size, permissions, error);
+ else
+ allocation_address =
+ process_sp->CallocateMemory(allocation_size, permissions, error);
-uint32_t
-IRMemoryMap::GetAddressByteSize()
-{
- lldb::ProcessSP process_sp = m_process_wp.lock();
+ if (!error.Success())
+ return LLDB_INVALID_ADDRESS;
+ } else {
+ error.SetErrorToGenericError();
+ error.SetErrorString(
+ "Couldn't malloc: process doesn't support allocating memory");
+ return LLDB_INVALID_ADDRESS;
+ }
+ } else {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't malloc: process doesn't exist, and this "
+ "memory must be in the process");
+ return LLDB_INVALID_ADDRESS;
+ }
+ break;
+ }
+
+ lldb::addr_t mask = alignment - 1;
+ aligned_address = (allocation_address + mask) & (~mask);
+
+ m_allocations[aligned_address] =
+ Allocation(allocation_address, aligned_address, allocation_size,
+ permissions, alignment, policy);
+
+ if (zero_memory) {
+ Error write_error;
+ std::vector<uint8_t> zero_buf(size, 0);
+ WriteMemory(aligned_address, zero_buf.data(), size, write_error);
+ }
- if (process_sp)
- return process_sp->GetAddressByteSize();
+ if (log) {
+ const char *policy_string;
- lldb::TargetSP target_sp = m_target_wp.lock();
+ switch (policy) {
+ default:
+ policy_string = "<invalid policy>";
+ break;
+ case eAllocationPolicyHostOnly:
+ policy_string = "eAllocationPolicyHostOnly";
+ break;
+ case eAllocationPolicyProcessOnly:
+ policy_string = "eAllocationPolicyProcessOnly";
+ break;
+ case eAllocationPolicyMirror:
+ policy_string = "eAllocationPolicyMirror";
+ break;
+ }
- if (target_sp)
- return target_sp->GetArchitecture().GetAddressByteSize();
+ log->Printf("IRMemoryMap::Malloc (%" PRIu64 ", 0x%" PRIx64 ", 0x%" PRIx64
+ ", %s) -> 0x%" PRIx64,
+ (uint64_t)allocation_size, (uint64_t)alignment,
+ (uint64_t)permissions, policy_string, aligned_address);
+ }
- return UINT32_MAX;
+ return aligned_address;
}
-ExecutionContextScope *
-IRMemoryMap::GetBestExecutionContextScope() const
-{
- lldb::ProcessSP process_sp = m_process_wp.lock();
+void IRMemoryMap::Leak(lldb::addr_t process_address, Error &error) {
+ error.Clear();
- if (process_sp)
- return process_sp.get();
+ AllocationMap::iterator iter = m_allocations.find(process_address);
- lldb::TargetSP target_sp = m_target_wp.lock();
-
- if (target_sp)
- return target_sp.get();
+ if (iter == m_allocations.end()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't leak: allocation doesn't exist");
+ return;
+ }
- return NULL;
-}
+ Allocation &allocation = iter->second;
-IRMemoryMap::Allocation::Allocation (lldb::addr_t process_alloc,
- lldb::addr_t process_start,
- size_t size,
- uint32_t permissions,
- uint8_t alignment,
- AllocationPolicy policy) :
- m_process_alloc (process_alloc),
- m_process_start (process_start),
- m_size (size),
- m_permissions (permissions),
- m_alignment (alignment),
- m_policy (policy),
- m_leak (false)
-{
- switch (policy)
- {
- default:
- assert (0 && "We cannot reach this!");
- case eAllocationPolicyHostOnly:
- m_data.SetByteSize(size);
- memset(m_data.GetBytes(), 0, size);
- break;
- case eAllocationPolicyProcessOnly:
- break;
- case eAllocationPolicyMirror:
- m_data.SetByteSize(size);
- memset(m_data.GetBytes(), 0, size);
- break;
- }
+ allocation.m_leak = true;
}
-lldb::addr_t
-IRMemoryMap::Malloc (size_t size, uint8_t alignment, uint32_t permissions, AllocationPolicy policy, bool zero_memory, Error &error)
-{
- lldb_private::Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
- error.Clear();
-
- lldb::ProcessSP process_sp;
- lldb::addr_t allocation_address = LLDB_INVALID_ADDRESS;
- lldb::addr_t aligned_address = LLDB_INVALID_ADDRESS;
+void IRMemoryMap::Free(lldb::addr_t process_address, Error &error) {
+ error.Clear();
- size_t alignment_mask = alignment - 1;
- size_t allocation_size;
+ AllocationMap::iterator iter = m_allocations.find(process_address);
- if (size == 0)
- allocation_size = alignment;
- else
- allocation_size = (size & alignment_mask) ? ((size + alignment) & (~alignment_mask)) : size;
+ if (iter == m_allocations.end()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't free: allocation doesn't exist");
+ return;
+ }
- switch (policy)
- {
- default:
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't malloc: invalid allocation policy");
- return LLDB_INVALID_ADDRESS;
- case eAllocationPolicyHostOnly:
- allocation_address = FindSpace(allocation_size);
- if (allocation_address == LLDB_INVALID_ADDRESS)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't malloc: address space is full");
- return LLDB_INVALID_ADDRESS;
- }
- break;
- case eAllocationPolicyMirror:
- process_sp = m_process_wp.lock();
- if (log)
- log->Printf ("IRMemoryMap::%s process_sp=0x%" PRIx64 ", process_sp->CanJIT()=%s, process_sp->IsAlive()=%s", __FUNCTION__, (lldb::addr_t) process_sp.get (), process_sp && process_sp->CanJIT () ? "true" : "false", process_sp && process_sp->IsAlive () ? "true" : "false");
- if (process_sp && process_sp->CanJIT() && process_sp->IsAlive())
- {
- if (!zero_memory)
- allocation_address = process_sp->AllocateMemory(allocation_size, permissions, error);
- else
- allocation_address = process_sp->CallocateMemory(allocation_size, permissions, error);
+ Allocation &allocation = iter->second;
- if (!error.Success())
- return LLDB_INVALID_ADDRESS;
- }
- else
- {
- if (log)
- log->Printf ("IRMemoryMap::%s switching to eAllocationPolicyHostOnly due to failed condition (see previous expr log message)", __FUNCTION__);
- policy = eAllocationPolicyHostOnly;
- allocation_address = FindSpace(allocation_size);
- if (allocation_address == LLDB_INVALID_ADDRESS)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't malloc: address space is full");
- return LLDB_INVALID_ADDRESS;
- }
- }
- break;
- case eAllocationPolicyProcessOnly:
- process_sp = m_process_wp.lock();
- if (process_sp)
- {
- if (process_sp->CanJIT() && process_sp->IsAlive())
- {
- if (!zero_memory)
- allocation_address = process_sp->AllocateMemory(allocation_size, permissions, error);
- else
- allocation_address = process_sp->CallocateMemory(allocation_size, permissions, error);
-
- if (!error.Success())
- return LLDB_INVALID_ADDRESS;
- }
- else
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't malloc: process doesn't support allocating memory");
- return LLDB_INVALID_ADDRESS;
- }
- }
- else
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't malloc: process doesn't exist, and this memory must be in the process");
- return LLDB_INVALID_ADDRESS;
- }
- break;
+ switch (allocation.m_policy) {
+ default:
+ case eAllocationPolicyHostOnly: {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
+ if (process_sp) {
+ if (process_sp->CanJIT() && process_sp->IsAlive())
+ process_sp->DeallocateMemory(
+ allocation.m_process_alloc); // FindSpace allocated this for real
}
+ break;
+ }
+ case eAllocationPolicyMirror:
+ case eAllocationPolicyProcessOnly: {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
+ if (process_sp)
+ process_sp->DeallocateMemory(allocation.m_process_alloc);
+ }
+ }
+
+ if (lldb_private::Log *log =
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)) {
+ log->Printf("IRMemoryMap::Free (0x%" PRIx64 ") freed [0x%" PRIx64
+ "..0x%" PRIx64 ")",
+ (uint64_t)process_address, iter->second.m_process_start,
+ iter->second.m_process_start + iter->second.m_size);
+ }
+
+ m_allocations.erase(iter);
+}
+
+bool IRMemoryMap::GetAllocSize(lldb::addr_t address, size_t &size) {
+ AllocationMap::iterator iter = FindAllocation(address, size);
+ if (iter == m_allocations.end())
+ return false;
- lldb::addr_t mask = alignment - 1;
- aligned_address = (allocation_address + mask) & (~mask);
-
- m_allocations[aligned_address] = Allocation(allocation_address,
- aligned_address,
- allocation_size,
- permissions,
- alignment,
- policy);
-
- if (zero_memory)
- {
- Error write_error;
- std::vector<uint8_t> zero_buf(size, 0);
- WriteMemory(aligned_address, zero_buf.data(), size, write_error);
- }
-
- if (log)
- {
- const char * policy_string;
+ Allocation &al = iter->second;
- switch (policy)
- {
- default:
- policy_string = "<invalid policy>";
- break;
- case eAllocationPolicyHostOnly:
- policy_string = "eAllocationPolicyHostOnly";
- break;
- case eAllocationPolicyProcessOnly:
- policy_string = "eAllocationPolicyProcessOnly";
- break;
- case eAllocationPolicyMirror:
- policy_string = "eAllocationPolicyMirror";
- break;
- }
+ if (address > (al.m_process_start + al.m_size)) {
+ size = 0;
+ return false;
+ }
- log->Printf("IRMemoryMap::Malloc (%" PRIu64 ", 0x%" PRIx64 ", 0x%" PRIx64 ", %s) -> 0x%" PRIx64,
- (uint64_t)allocation_size,
- (uint64_t)alignment,
- (uint64_t)permissions,
- policy_string,
- aligned_address);
- }
+ if (address > al.m_process_start) {
+ int dif = address - al.m_process_start;
+ size = al.m_size - dif;
+ return true;
+ }
- return aligned_address;
+ size = al.m_size;
+ return true;
}
-void
-IRMemoryMap::Leak (lldb::addr_t process_address, Error &error)
-{
- error.Clear();
+void IRMemoryMap::WriteMemory(lldb::addr_t process_address,
+ const uint8_t *bytes, size_t size, Error &error) {
+ error.Clear();
- AllocationMap::iterator iter = m_allocations.find(process_address);
+ AllocationMap::iterator iter = FindAllocation(process_address, size);
- if (iter == m_allocations.end())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't leak: allocation doesn't exist");
- return;
+ if (iter == m_allocations.end()) {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
+
+ if (process_sp) {
+ process_sp->WriteMemory(process_address, bytes, size, error);
+ return;
}
- Allocation &allocation = iter->second;
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't write: no allocation contains the target "
+ "range and the process doesn't exist");
+ return;
+ }
- allocation.m_leak = true;
-}
+ Allocation &allocation = iter->second;
-void
-IRMemoryMap::Free (lldb::addr_t process_address, Error &error)
-{
- error.Clear();
+ uint64_t offset = process_address - allocation.m_process_start;
- AllocationMap::iterator iter = m_allocations.find(process_address);
+ lldb::ProcessSP process_sp;
- if (iter == m_allocations.end())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't free: allocation doesn't exist");
+ switch (allocation.m_policy) {
+ default:
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't write: invalid allocation policy");
+ return;
+ case eAllocationPolicyHostOnly:
+ if (!allocation.m_data.GetByteSize()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't write: data buffer is empty");
+ return;
+ }
+ ::memcpy(allocation.m_data.GetBytes() + offset, bytes, size);
+ break;
+ case eAllocationPolicyMirror:
+ if (!allocation.m_data.GetByteSize()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't write: data buffer is empty");
+ return;
+ }
+ ::memcpy(allocation.m_data.GetBytes() + offset, bytes, size);
+ process_sp = m_process_wp.lock();
+ if (process_sp) {
+ process_sp->WriteMemory(process_address, bytes, size, error);
+ if (!error.Success())
+ return;
+ }
+ break;
+ case eAllocationPolicyProcessOnly:
+ process_sp = m_process_wp.lock();
+ if (process_sp) {
+ process_sp->WriteMemory(process_address, bytes, size, error);
+ if (!error.Success())
return;
}
+ break;
+ }
- Allocation &allocation = iter->second;
+ if (lldb_private::Log *log =
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)) {
+ log->Printf("IRMemoryMap::WriteMemory (0x%" PRIx64 ", 0x%" PRIx64
+ ", 0x%" PRId64 ") went to [0x%" PRIx64 "..0x%" PRIx64 ")",
+ (uint64_t)process_address, (uint64_t)bytes, (uint64_t)size,
+ (uint64_t)allocation.m_process_start,
+ (uint64_t)allocation.m_process_start +
+ (uint64_t)allocation.m_size);
+ }
+}
+
+void IRMemoryMap::WriteScalarToMemory(lldb::addr_t process_address,
+ Scalar &scalar, size_t size,
+ Error &error) {
+ error.Clear();
+
+ if (size == UINT32_MAX)
+ size = scalar.GetByteSize();
+
+ if (size > 0) {
+ uint8_t buf[32];
+ const size_t mem_size =
+ scalar.GetAsMemoryData(buf, size, GetByteOrder(), error);
+ if (mem_size > 0) {
+ return WriteMemory(process_address, buf, mem_size, error);
+ } else {
+ error.SetErrorToGenericError();
+ error.SetErrorString(
+ "Couldn't write scalar: failed to get scalar as memory data");
+ }
+ } else {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't write scalar: its size was zero");
+ }
+ return;
+}
+
+void IRMemoryMap::WritePointerToMemory(lldb::addr_t process_address,
+ lldb::addr_t address, Error &error) {
+ error.Clear();
+
+ Scalar scalar(address);
+
+ WriteScalarToMemory(process_address, scalar, GetAddressByteSize(), error);
+}
+
+void IRMemoryMap::ReadMemory(uint8_t *bytes, lldb::addr_t process_address,
+ size_t size, Error &error) {
+ error.Clear();
- switch (allocation.m_policy)
- {
- default:
- case eAllocationPolicyHostOnly:
- {
- lldb::ProcessSP process_sp = m_process_wp.lock();
- if (process_sp)
- {
- if (process_sp->CanJIT() && process_sp->IsAlive())
- process_sp->DeallocateMemory(allocation.m_process_alloc); // FindSpace allocated this for real
- }
+ AllocationMap::iterator iter = FindAllocation(process_address, size);
- break;
- }
- case eAllocationPolicyMirror:
- case eAllocationPolicyProcessOnly:
- {
- lldb::ProcessSP process_sp = m_process_wp.lock();
- if (process_sp)
- process_sp->DeallocateMemory(allocation.m_process_alloc);
- }
- }
+ if (iter == m_allocations.end()) {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
- if (lldb_private::Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS))
- {
- log->Printf("IRMemoryMap::Free (0x%" PRIx64 ") freed [0x%" PRIx64 "..0x%" PRIx64 ")",
- (uint64_t)process_address,
- iter->second.m_process_start,
- iter->second.m_process_start + iter->second.m_size);
+ if (process_sp) {
+ process_sp->ReadMemory(process_address, bytes, size, error);
+ return;
}
- m_allocations.erase(iter);
-}
-
-bool
-IRMemoryMap::GetAllocSize(lldb::addr_t address, size_t &size)
-{
- AllocationMap::iterator iter = FindAllocation(address, size);
- if (iter == m_allocations.end())
- return false;
-
- Allocation &al = iter->second;
+ lldb::TargetSP target_sp = m_target_wp.lock();
- if (address > (al.m_process_start + al.m_size))
- {
- size = 0;
- return false;
+ if (target_sp) {
+ Address absolute_address(process_address);
+ target_sp->ReadMemory(absolute_address, false, bytes, size, error);
+ return;
}
- if (address > al.m_process_start)
- {
- int dif = address - al.m_process_start;
- size = al.m_size - dif;
- return true;
- }
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't read: no allocation contains the target "
+ "range, and neither the process nor the target exist");
+ return;
+ }
- size = al.m_size;
- return true;
-}
+ Allocation &allocation = iter->second;
-void
-IRMemoryMap::WriteMemory (lldb::addr_t process_address, const uint8_t *bytes, size_t size, Error &error)
-{
- error.Clear();
+ uint64_t offset = process_address - allocation.m_process_start;
- AllocationMap::iterator iter = FindAllocation(process_address, size);
+ if (offset > allocation.m_size) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't read: data is not in the allocation");
+ return;
+ }
- if (iter == m_allocations.end())
- {
- lldb::ProcessSP process_sp = m_process_wp.lock();
-
- if (process_sp)
- {
- process_sp->WriteMemory(process_address, bytes, size, error);
- return;
- }
+ lldb::ProcessSP process_sp;
+ switch (allocation.m_policy) {
+ default:
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't read: invalid allocation policy");
+ return;
+ case eAllocationPolicyHostOnly:
+ if (!allocation.m_data.GetByteSize()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't read: data buffer is empty");
+ return;
+ }
+ if (allocation.m_data.GetByteSize() < offset + size) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't read: not enough underlying data");
+ return;
+ }
+
+ ::memcpy(bytes, allocation.m_data.GetBytes() + offset, size);
+ break;
+ case eAllocationPolicyMirror:
+ process_sp = m_process_wp.lock();
+ if (process_sp) {
+ process_sp->ReadMemory(process_address, bytes, size, error);
+ if (!error.Success())
+ return;
+ } else {
+ if (!allocation.m_data.GetByteSize()) {
error.SetErrorToGenericError();
- error.SetErrorString("Couldn't write: no allocation contains the target range and the process doesn't exist");
+ error.SetErrorString("Couldn't read: data buffer is empty");
+ return;
+ }
+ ::memcpy(bytes, allocation.m_data.GetBytes() + offset, size);
+ }
+ break;
+ case eAllocationPolicyProcessOnly:
+ process_sp = m_process_wp.lock();
+ if (process_sp) {
+ process_sp->ReadMemory(process_address, bytes, size, error);
+ if (!error.Success())
return;
}
+ break;
+ }
- Allocation &allocation = iter->second;
+ if (lldb_private::Log *log =
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)) {
+ log->Printf("IRMemoryMap::ReadMemory (0x%" PRIx64 ", 0x%" PRIx64
+ ", 0x%" PRId64 ") came from [0x%" PRIx64 "..0x%" PRIx64 ")",
+ (uint64_t)process_address, (uint64_t)bytes, (uint64_t)size,
+ (uint64_t)allocation.m_process_start,
+ (uint64_t)allocation.m_process_start +
+ (uint64_t)allocation.m_size);
+ }
+}
+
+void IRMemoryMap::ReadScalarFromMemory(Scalar &scalar,
+ lldb::addr_t process_address,
+ size_t size, Error &error) {
+ error.Clear();
+
+ if (size > 0) {
+ DataBufferHeap buf(size, 0);
+ ReadMemory(buf.GetBytes(), process_address, size, error);
- uint64_t offset = process_address - allocation.m_process_start;
+ if (!error.Success())
+ return;
- lldb::ProcessSP process_sp;
+ DataExtractor extractor(buf.GetBytes(), buf.GetByteSize(), GetByteOrder(),
+ GetAddressByteSize());
- switch (allocation.m_policy)
- {
- default:
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't write: invalid allocation policy");
- return;
- case eAllocationPolicyHostOnly:
- if (!allocation.m_data.GetByteSize())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't write: data buffer is empty");
- return;
- }
- ::memcpy (allocation.m_data.GetBytes() + offset, bytes, size);
- break;
- case eAllocationPolicyMirror:
- if (!allocation.m_data.GetByteSize())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't write: data buffer is empty");
- return;
- }
- ::memcpy (allocation.m_data.GetBytes() + offset, bytes, size);
- process_sp = m_process_wp.lock();
- if (process_sp)
- {
- process_sp->WriteMemory(process_address, bytes, size, error);
- if (!error.Success())
- return;
- }
- break;
- case eAllocationPolicyProcessOnly:
- process_sp = m_process_wp.lock();
- if (process_sp)
- {
- process_sp->WriteMemory(process_address, bytes, size, error);
- if (!error.Success())
- return;
- }
- break;
- }
+ lldb::offset_t offset = 0;
- if (lldb_private::Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS))
- {
- log->Printf("IRMemoryMap::WriteMemory (0x%" PRIx64 ", 0x%" PRIx64 ", 0x%" PRId64 ") went to [0x%" PRIx64 "..0x%" PRIx64 ")",
- (uint64_t)process_address,
- (uint64_t)bytes,
- (uint64_t)size,
- (uint64_t)allocation.m_process_start,
- (uint64_t)allocation.m_process_start + (uint64_t)allocation.m_size);
- }
-}
+ switch (size) {
+ default:
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat(
+ "Couldn't read scalar: unsupported size %" PRIu64, (uint64_t)size);
+ return;
+ case 1:
+ scalar = extractor.GetU8(&offset);
+ break;
+ case 2:
+ scalar = extractor.GetU16(&offset);
+ break;
+ case 4:
+ scalar = extractor.GetU32(&offset);
+ break;
+ case 8:
+ scalar = extractor.GetU64(&offset);
+ break;
+ }
+ } else {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't read scalar: its size was zero");
+ }
+ return;
+}
+
+void IRMemoryMap::ReadPointerFromMemory(lldb::addr_t *address,
+ lldb::addr_t process_address,
+ Error &error) {
+ error.Clear();
+
+ Scalar pointer_scalar;
+ ReadScalarFromMemory(pointer_scalar, process_address, GetAddressByteSize(),
+ error);
-void
-IRMemoryMap::WriteScalarToMemory (lldb::addr_t process_address, Scalar &scalar, size_t size, Error &error)
-{
- error.Clear();
-
- if (size == UINT32_MAX)
- size = scalar.GetByteSize();
-
- if (size > 0)
- {
- uint8_t buf[32];
- const size_t mem_size = scalar.GetAsMemoryData (buf, size, GetByteOrder(), error);
- if (mem_size > 0)
- {
- return WriteMemory(process_address, buf, mem_size, error);
- }
- else
- {
- error.SetErrorToGenericError();
- error.SetErrorString ("Couldn't write scalar: failed to get scalar as memory data");
- }
- }
- else
- {
- error.SetErrorToGenericError();
- error.SetErrorString ("Couldn't write scalar: its size was zero");
- }
+ if (!error.Success())
return;
-}
-void
-IRMemoryMap::WritePointerToMemory (lldb::addr_t process_address, lldb::addr_t address, Error &error)
-{
- error.Clear();
+ *address = pointer_scalar.ULongLong();
- Scalar scalar(address);
-
- WriteScalarToMemory(process_address, scalar, GetAddressByteSize(), error);
+ return;
}
-void
-IRMemoryMap::ReadMemory (uint8_t *bytes, lldb::addr_t process_address, size_t size, Error &error)
-{
- error.Clear();
+void IRMemoryMap::GetMemoryData(DataExtractor &extractor,
+ lldb::addr_t process_address, size_t size,
+ Error &error) {
+ error.Clear();
+ if (size > 0) {
AllocationMap::iterator iter = FindAllocation(process_address, size);
- if (iter == m_allocations.end())
- {
- lldb::ProcessSP process_sp = m_process_wp.lock();
-
- if (process_sp)
- {
- process_sp->ReadMemory(process_address, bytes, size, error);
- return;
- }
-
- lldb::TargetSP target_sp = m_target_wp.lock();
-
- if (target_sp)
- {
- Address absolute_address(process_address);
- target_sp->ReadMemory(absolute_address, false, bytes, size, error);
- return;
- }
-
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't read: no allocation contains the target range, and neither the process nor the target exist");
- return;
+ if (iter == m_allocations.end()) {
+ error.SetErrorToGenericError();
+ error.SetErrorStringWithFormat(
+ "Couldn't find an allocation containing [0x%" PRIx64 "..0x%" PRIx64
+ ")",
+ process_address, process_address + size);
+ return;
}
Allocation &allocation = iter->second;
- uint64_t offset = process_address - allocation.m_process_start;
+ switch (allocation.m_policy) {
+ default:
+ error.SetErrorToGenericError();
+ error.SetErrorString(
+ "Couldn't get memory data: invalid allocation policy");
+ return;
+ case eAllocationPolicyProcessOnly:
+ error.SetErrorToGenericError();
+ error.SetErrorString(
+ "Couldn't get memory data: memory is only in the target");
+ return;
+ case eAllocationPolicyMirror: {
+ lldb::ProcessSP process_sp = m_process_wp.lock();
- if (offset > allocation.m_size)
- {
+ if (!allocation.m_data.GetByteSize()) {
error.SetErrorToGenericError();
- error.SetErrorString("Couldn't read: data is not in the allocation");
+ error.SetErrorString("Couldn't get memory data: data buffer is empty");
return;
- }
-
- lldb::ProcessSP process_sp;
-
- switch (allocation.m_policy)
- {
- default:
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't read: invalid allocation policy");
+ }
+ if (process_sp) {
+ process_sp->ReadMemory(allocation.m_process_start,
+ allocation.m_data.GetBytes(),
+ allocation.m_data.GetByteSize(), error);
+ if (!error.Success())
+ return;
+ uint64_t offset = process_address - allocation.m_process_start;
+ extractor = DataExtractor(allocation.m_data.GetBytes() + offset, size,
+ GetByteOrder(), GetAddressByteSize());
return;
+ }
+ } break;
case eAllocationPolicyHostOnly:
- if (!allocation.m_data.GetByteSize())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't read: data buffer is empty");
- return;
- }
- if (allocation.m_data.GetByteSize() < offset + size)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't read: not enough underlying data");
- return;
- }
-
- ::memcpy (bytes, allocation.m_data.GetBytes() + offset, size);
- break;
- case eAllocationPolicyMirror:
- process_sp = m_process_wp.lock();
- if (process_sp)
- {
- process_sp->ReadMemory(process_address, bytes, size, error);
- if (!error.Success())
- return;
- }
- else
- {
- if (!allocation.m_data.GetByteSize())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't read: data buffer is empty");
- return;
- }
- ::memcpy (bytes, allocation.m_data.GetBytes() + offset, size);
- }
- break;
- case eAllocationPolicyProcessOnly:
- process_sp = m_process_wp.lock();
- if (process_sp)
- {
- process_sp->ReadMemory(process_address, bytes, size, error);
- if (!error.Success())
- return;
- }
- break;
- }
-
- if (lldb_private::Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS))
- {
- log->Printf("IRMemoryMap::ReadMemory (0x%" PRIx64 ", 0x%" PRIx64 ", 0x%" PRId64 ") came from [0x%" PRIx64 "..0x%" PRIx64 ")",
- (uint64_t)process_address,
- (uint64_t)bytes,
- (uint64_t)size,
- (uint64_t)allocation.m_process_start,
- (uint64_t)allocation.m_process_start + (uint64_t)allocation.m_size);
- }
-}
-
-void
-IRMemoryMap::ReadScalarFromMemory (Scalar &scalar, lldb::addr_t process_address, size_t size, Error &error)
-{
- error.Clear();
-
- if (size > 0)
- {
- DataBufferHeap buf(size, 0);
- ReadMemory(buf.GetBytes(), process_address, size, error);
-
- if (!error.Success())
- return;
-
- DataExtractor extractor(buf.GetBytes(), buf.GetByteSize(), GetByteOrder(), GetAddressByteSize());
-
- lldb::offset_t offset = 0;
-
- switch (size)
- {
- default:
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("Couldn't read scalar: unsupported size %" PRIu64, (uint64_t)size);
- return;
- case 1: scalar = extractor.GetU8(&offset); break;
- case 2: scalar = extractor.GetU16(&offset); break;
- case 4: scalar = extractor.GetU32(&offset); break;
- case 8: scalar = extractor.GetU64(&offset); break;
- }
- }
- else
- {
+ if (!allocation.m_data.GetByteSize()) {
error.SetErrorToGenericError();
- error.SetErrorString ("Couldn't read scalar: its size was zero");
- }
- return;
-}
-
-void
-IRMemoryMap::ReadPointerFromMemory (lldb::addr_t *address, lldb::addr_t process_address, Error &error)
-{
- error.Clear();
-
- Scalar pointer_scalar;
- ReadScalarFromMemory(pointer_scalar, process_address, GetAddressByteSize(), error);
-
- if (!error.Success())
+ error.SetErrorString("Couldn't get memory data: data buffer is empty");
return;
-
- *address = pointer_scalar.ULongLong();
-
+ }
+ uint64_t offset = process_address - allocation.m_process_start;
+ extractor = DataExtractor(allocation.m_data.GetBytes() + offset, size,
+ GetByteOrder(), GetAddressByteSize());
+ return;
+ }
+ } else {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't get memory data: its size was zero");
return;
-}
-
-void
-IRMemoryMap::GetMemoryData (DataExtractor &extractor, lldb::addr_t process_address, size_t size, Error &error)
-{
- error.Clear();
-
- if (size > 0)
- {
- AllocationMap::iterator iter = FindAllocation(process_address, size);
-
- if (iter == m_allocations.end())
- {
- error.SetErrorToGenericError();
- error.SetErrorStringWithFormat("Couldn't find an allocation containing [0x%" PRIx64 "..0x%" PRIx64 ")", process_address, process_address + size);
- return;
- }
-
- Allocation &allocation = iter->second;
-
- switch (allocation.m_policy)
- {
- default:
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't get memory data: invalid allocation policy");
- return;
- case eAllocationPolicyProcessOnly:
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't get memory data: memory is only in the target");
- return;
- case eAllocationPolicyMirror:
- {
- lldb::ProcessSP process_sp = m_process_wp.lock();
-
- if (!allocation.m_data.GetByteSize())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't get memory data: data buffer is empty");
- return;
- }
- if (process_sp)
- {
- process_sp->ReadMemory(allocation.m_process_start, allocation.m_data.GetBytes(), allocation.m_data.GetByteSize(), error);
- if (!error.Success())
- return;
- uint64_t offset = process_address - allocation.m_process_start;
- extractor = DataExtractor(allocation.m_data.GetBytes() + offset, size, GetByteOrder(), GetAddressByteSize());
- return;
- }
- }
- break;
- case eAllocationPolicyHostOnly:
- if (!allocation.m_data.GetByteSize())
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't get memory data: data buffer is empty");
- return;
- }
- uint64_t offset = process_address - allocation.m_process_start;
- extractor = DataExtractor(allocation.m_data.GetBytes() + offset, size, GetByteOrder(), GetAddressByteSize());
- return;
- }
- }
- else
- {
- error.SetErrorToGenericError();
- error.SetErrorString ("Couldn't get memory data: its size was zero");
- return;
- }
+ }
}
Modified: lldb/trunk/source/Expression/LLVMUserExpression.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/LLVMUserExpression.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/LLVMUserExpression.cpp (original)
+++ lldb/trunk/source/Expression/LLVMUserExpression.cpp Tue Sep 6 15:57:50 2016
@@ -41,341 +41,337 @@
using namespace lldb_private;
-LLVMUserExpression::LLVMUserExpression(ExecutionContextScope &exe_scope,
- const char *expr,
+LLVMUserExpression::LLVMUserExpression(ExecutionContextScope &exe_scope,
+ const char *expr,
const char *expr_prefix,
- lldb::LanguageType language,
- ResultType desired_type,
+ lldb::LanguageType language,
+ ResultType desired_type,
const EvaluateExpressionOptions &options)
- : UserExpression(exe_scope, expr, expr_prefix, language, desired_type, options),
+ : UserExpression(exe_scope, expr, expr_prefix, language, desired_type,
+ options),
m_stack_frame_bottom(LLDB_INVALID_ADDRESS),
- m_stack_frame_top(LLDB_INVALID_ADDRESS),
- m_transformed_text(),
- m_execution_unit_sp(),
- m_materializer_ap(),
- m_jit_module_wp(),
- m_enforce_valid_object(true),
- m_in_cplusplus_method(false),
- m_in_objectivec_method(false),
- m_in_static_method(false),
- m_needs_object_ptr(false),
- m_target(NULL),
- m_can_interpret(false),
- m_materialized_address(LLDB_INVALID_ADDRESS)
-{
+ m_stack_frame_top(LLDB_INVALID_ADDRESS), m_transformed_text(),
+ m_execution_unit_sp(), m_materializer_ap(), m_jit_module_wp(),
+ m_enforce_valid_object(true), m_in_cplusplus_method(false),
+ m_in_objectivec_method(false), m_in_static_method(false),
+ m_needs_object_ptr(false), m_target(NULL), m_can_interpret(false),
+ m_materialized_address(LLDB_INVALID_ADDRESS) {}
+
+LLVMUserExpression::~LLVMUserExpression() {
+ if (m_target) {
+ lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
+ if (jit_module_sp)
+ m_target->GetImages().Remove(jit_module_sp);
+ }
}
-LLVMUserExpression::~LLVMUserExpression()
-{
- if (m_target)
- {
- lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
- if (jit_module_sp)
- m_target->GetImages().Remove(jit_module_sp);
+lldb::ExpressionResults
+LLVMUserExpression::DoExecute(DiagnosticManager &diagnostic_manager,
+ ExecutionContext &exe_ctx,
+ const EvaluateExpressionOptions &options,
+ lldb::UserExpressionSP &shared_ptr_to_me,
+ lldb::ExpressionVariableSP &result) {
+ // The expression log is quite verbose, and if you're just tracking the
+ // execution of the
+ // expression, it's quite convenient to have these logs come out with the STEP
+ // log as well.
+ Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS |
+ LIBLLDB_LOG_STEP));
+
+ if (m_jit_start_addr != LLDB_INVALID_ADDRESS || m_can_interpret) {
+ lldb::addr_t struct_address = LLDB_INVALID_ADDRESS;
+
+ if (!PrepareToExecuteJITExpression(diagnostic_manager, exe_ctx,
+ struct_address)) {
+ diagnostic_manager.Printf(
+ eDiagnosticSeverityError,
+ "errored out in %s, couldn't PrepareToExecuteJITExpression",
+ __FUNCTION__);
+ return lldb::eExpressionSetupError;
}
-}
-lldb::ExpressionResults
-LLVMUserExpression::DoExecute(DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx,
- const EvaluateExpressionOptions &options, lldb::UserExpressionSP &shared_ptr_to_me,
- lldb::ExpressionVariableSP &result)
-{
- // The expression log is quite verbose, and if you're just tracking the execution of the
- // expression, it's quite convenient to have these logs come out with the STEP log as well.
- Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
-
- if (m_jit_start_addr != LLDB_INVALID_ADDRESS || m_can_interpret)
- {
- lldb::addr_t struct_address = LLDB_INVALID_ADDRESS;
-
- if (!PrepareToExecuteJITExpression(diagnostic_manager, exe_ctx, struct_address))
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError,
- "errored out in %s, couldn't PrepareToExecuteJITExpression", __FUNCTION__);
- return lldb::eExpressionSetupError;
- }
+ lldb::addr_t function_stack_bottom = LLDB_INVALID_ADDRESS;
+ lldb::addr_t function_stack_top = LLDB_INVALID_ADDRESS;
- lldb::addr_t function_stack_bottom = LLDB_INVALID_ADDRESS;
- lldb::addr_t function_stack_top = LLDB_INVALID_ADDRESS;
+ if (m_can_interpret) {
+ llvm::Module *module = m_execution_unit_sp->GetModule();
+ llvm::Function *function = m_execution_unit_sp->GetFunction();
+
+ if (!module || !function) {
+ diagnostic_manager.PutCString(
+ eDiagnosticSeverityError,
+ "supposed to interpret, but nothing is there");
+ return lldb::eExpressionSetupError;
+ }
- if (m_can_interpret)
- {
- llvm::Module *module = m_execution_unit_sp->GetModule();
- llvm::Function *function = m_execution_unit_sp->GetFunction();
-
- if (!module || !function)
- {
- diagnostic_manager.PutCString(eDiagnosticSeverityError, "supposed to interpret, but nothing is there");
- return lldb::eExpressionSetupError;
- }
-
- Error interpreter_error;
-
- std::vector<lldb::addr_t> args;
-
- if (!AddArguments(exe_ctx, args, struct_address, diagnostic_manager))
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "errored out in %s, couldn't AddArguments",
- __FUNCTION__);
- return lldb::eExpressionSetupError;
- }
-
- function_stack_bottom = m_stack_frame_bottom;
- function_stack_top = m_stack_frame_top;
-
- IRInterpreter::Interpret(*module, *function, args, *m_execution_unit_sp.get(), interpreter_error,
- function_stack_bottom, function_stack_top, exe_ctx);
-
- if (!interpreter_error.Success())
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "supposed to interpret, but failed: %s",
- interpreter_error.AsCString());
- return lldb::eExpressionDiscarded;
- }
- }
- else
- {
- if (!exe_ctx.HasThreadScope())
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "%s called with no thread selected", __FUNCTION__);
- return lldb::eExpressionSetupError;
- }
-
- Address wrapper_address(m_jit_start_addr);
-
- std::vector<lldb::addr_t> args;
-
- if (!AddArguments(exe_ctx, args, struct_address, diagnostic_manager))
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "errored out in %s, couldn't AddArguments",
- __FUNCTION__);
- return lldb::eExpressionSetupError;
- }
-
- lldb::ThreadPlanSP call_plan_sp(new ThreadPlanCallUserExpression(exe_ctx.GetThreadRef(), wrapper_address,
- args, options, shared_ptr_to_me));
-
- StreamString ss;
- if (!call_plan_sp || !call_plan_sp->ValidatePlan(&ss))
- {
- diagnostic_manager.PutCString(eDiagnosticSeverityError, ss.GetData());
- return lldb::eExpressionSetupError;
- }
-
- ThreadPlanCallUserExpression *user_expression_plan =
- static_cast<ThreadPlanCallUserExpression *>(call_plan_sp.get());
-
- lldb::addr_t function_stack_pointer = user_expression_plan->GetFunctionStackPointer();
-
- function_stack_bottom = function_stack_pointer - HostInfo::GetPageSize();
- function_stack_top = function_stack_pointer;
-
- if (log)
- log->Printf("-- [UserExpression::Execute] Execution of expression begins --");
-
- if (exe_ctx.GetProcessPtr())
- exe_ctx.GetProcessPtr()->SetRunningUserExpression(true);
-
- lldb::ExpressionResults execution_result =
- exe_ctx.GetProcessRef().RunThreadPlan(exe_ctx, call_plan_sp, options, diagnostic_manager);
-
- if (exe_ctx.GetProcessPtr())
- exe_ctx.GetProcessPtr()->SetRunningUserExpression(false);
-
- if (log)
- log->Printf("-- [UserExpression::Execute] Execution of expression completed --");
-
- if (execution_result == lldb::eExpressionInterrupted || execution_result == lldb::eExpressionHitBreakpoint)
- {
- const char *error_desc = NULL;
-
- if (call_plan_sp)
- {
- lldb::StopInfoSP real_stop_info_sp = call_plan_sp->GetRealStopInfo();
- if (real_stop_info_sp)
- error_desc = real_stop_info_sp->GetDescription();
- }
- if (error_desc)
- diagnostic_manager.Printf(eDiagnosticSeverityError, "Execution was interrupted, reason: %s.",
- error_desc);
- else
- diagnostic_manager.PutCString(eDiagnosticSeverityError, "Execution was interrupted.");
-
- if ((execution_result == lldb::eExpressionInterrupted && options.DoesUnwindOnError()) ||
- (execution_result == lldb::eExpressionHitBreakpoint && options.DoesIgnoreBreakpoints()))
- diagnostic_manager.AppendMessageToDiagnostic(
- "The process has been returned to the state before expression evaluation.");
- else
- {
- if (execution_result == lldb::eExpressionHitBreakpoint)
- user_expression_plan->TransferExpressionOwnership();
- diagnostic_manager.AppendMessageToDiagnostic(
- "The process has been left at the point where it was interrupted, "
- "use \"thread return -x\" to return to the state before expression evaluation.");
- }
-
- return execution_result;
- }
- else if (execution_result == lldb::eExpressionStoppedForDebug)
- {
- diagnostic_manager.PutCString(
- eDiagnosticSeverityRemark,
- "Execution was halted at the first instruction of the expression "
- "function because \"debug\" was requested.\n"
- "Use \"thread return -x\" to return to the state before expression evaluation.");
- return execution_result;
- }
- else if (execution_result != lldb::eExpressionCompleted)
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "Couldn't execute function; result was %s",
- Process::ExecutionResultAsCString(execution_result));
- return execution_result;
- }
- }
+ Error interpreter_error;
- if (FinalizeJITExecution(diagnostic_manager, exe_ctx, result, function_stack_bottom, function_stack_top))
- {
- return lldb::eExpressionCompleted;
- }
- else
- {
- return lldb::eExpressionResultUnavailable;
- }
- }
- else
- {
- diagnostic_manager.PutCString(eDiagnosticSeverityError,
- "Expression can't be run, because there is no JIT compiled function");
+ std::vector<lldb::addr_t> args;
+
+ if (!AddArguments(exe_ctx, args, struct_address, diagnostic_manager)) {
+ diagnostic_manager.Printf(eDiagnosticSeverityError,
+ "errored out in %s, couldn't AddArguments",
+ __FUNCTION__);
return lldb::eExpressionSetupError;
- }
-}
+ }
-bool
-LLVMUserExpression::FinalizeJITExecution(DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx,
- lldb::ExpressionVariableSP &result, lldb::addr_t function_stack_bottom,
- lldb::addr_t function_stack_top)
-{
- Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+ function_stack_bottom = m_stack_frame_bottom;
+ function_stack_top = m_stack_frame_top;
- if (log)
- log->Printf("-- [UserExpression::FinalizeJITExecution] Dematerializing after execution --");
+ IRInterpreter::Interpret(*module, *function, args,
+ *m_execution_unit_sp.get(), interpreter_error,
+ function_stack_bottom, function_stack_top,
+ exe_ctx);
- if (!m_dematerializer_sp)
- {
+ if (!interpreter_error.Success()) {
diagnostic_manager.Printf(eDiagnosticSeverityError,
- "Couldn't apply expression side effects : no dematerializer is present");
- return false;
- }
+ "supposed to interpret, but failed: %s",
+ interpreter_error.AsCString());
+ return lldb::eExpressionDiscarded;
+ }
+ } else {
+ if (!exe_ctx.HasThreadScope()) {
+ diagnostic_manager.Printf(eDiagnosticSeverityError,
+ "%s called with no thread selected",
+ __FUNCTION__);
+ return lldb::eExpressionSetupError;
+ }
- Error dematerialize_error;
+ Address wrapper_address(m_jit_start_addr);
- m_dematerializer_sp->Dematerialize(dematerialize_error, function_stack_bottom, function_stack_top);
+ std::vector<lldb::addr_t> args;
- if (!dematerialize_error.Success())
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "Couldn't apply expression side effects : %s",
- dematerialize_error.AsCString("unknown error"));
- return false;
+ if (!AddArguments(exe_ctx, args, struct_address, diagnostic_manager)) {
+ diagnostic_manager.Printf(eDiagnosticSeverityError,
+ "errored out in %s, couldn't AddArguments",
+ __FUNCTION__);
+ return lldb::eExpressionSetupError;
+ }
+
+ lldb::ThreadPlanSP call_plan_sp(new ThreadPlanCallUserExpression(
+ exe_ctx.GetThreadRef(), wrapper_address, args, options,
+ shared_ptr_to_me));
+
+ StreamString ss;
+ if (!call_plan_sp || !call_plan_sp->ValidatePlan(&ss)) {
+ diagnostic_manager.PutCString(eDiagnosticSeverityError, ss.GetData());
+ return lldb::eExpressionSetupError;
+ }
+
+ ThreadPlanCallUserExpression *user_expression_plan =
+ static_cast<ThreadPlanCallUserExpression *>(call_plan_sp.get());
+
+ lldb::addr_t function_stack_pointer =
+ user_expression_plan->GetFunctionStackPointer();
+
+ function_stack_bottom = function_stack_pointer - HostInfo::GetPageSize();
+ function_stack_top = function_stack_pointer;
+
+ if (log)
+ log->Printf(
+ "-- [UserExpression::Execute] Execution of expression begins --");
+
+ if (exe_ctx.GetProcessPtr())
+ exe_ctx.GetProcessPtr()->SetRunningUserExpression(true);
+
+ lldb::ExpressionResults execution_result =
+ exe_ctx.GetProcessRef().RunThreadPlan(exe_ctx, call_plan_sp, options,
+ diagnostic_manager);
+
+ if (exe_ctx.GetProcessPtr())
+ exe_ctx.GetProcessPtr()->SetRunningUserExpression(false);
+
+ if (log)
+ log->Printf("-- [UserExpression::Execute] Execution of expression "
+ "completed --");
+
+ if (execution_result == lldb::eExpressionInterrupted ||
+ execution_result == lldb::eExpressionHitBreakpoint) {
+ const char *error_desc = NULL;
+
+ if (call_plan_sp) {
+ lldb::StopInfoSP real_stop_info_sp = call_plan_sp->GetRealStopInfo();
+ if (real_stop_info_sp)
+ error_desc = real_stop_info_sp->GetDescription();
+ }
+ if (error_desc)
+ diagnostic_manager.Printf(eDiagnosticSeverityError,
+ "Execution was interrupted, reason: %s.",
+ error_desc);
+ else
+ diagnostic_manager.PutCString(eDiagnosticSeverityError,
+ "Execution was interrupted.");
+
+ if ((execution_result == lldb::eExpressionInterrupted &&
+ options.DoesUnwindOnError()) ||
+ (execution_result == lldb::eExpressionHitBreakpoint &&
+ options.DoesIgnoreBreakpoints()))
+ diagnostic_manager.AppendMessageToDiagnostic(
+ "The process has been returned to the state before expression "
+ "evaluation.");
+ else {
+ if (execution_result == lldb::eExpressionHitBreakpoint)
+ user_expression_plan->TransferExpressionOwnership();
+ diagnostic_manager.AppendMessageToDiagnostic(
+ "The process has been left at the point where it was "
+ "interrupted, "
+ "use \"thread return -x\" to return to the state before "
+ "expression evaluation.");
+ }
+
+ return execution_result;
+ } else if (execution_result == lldb::eExpressionStoppedForDebug) {
+ diagnostic_manager.PutCString(
+ eDiagnosticSeverityRemark,
+ "Execution was halted at the first instruction of the expression "
+ "function because \"debug\" was requested.\n"
+ "Use \"thread return -x\" to return to the state before expression "
+ "evaluation.");
+ return execution_result;
+ } else if (execution_result != lldb::eExpressionCompleted) {
+ diagnostic_manager.Printf(
+ eDiagnosticSeverityError,
+ "Couldn't execute function; result was %s",
+ Process::ExecutionResultAsCString(execution_result));
+ return execution_result;
+ }
+ }
+
+ if (FinalizeJITExecution(diagnostic_manager, exe_ctx, result,
+ function_stack_bottom, function_stack_top)) {
+ return lldb::eExpressionCompleted;
+ } else {
+ return lldb::eExpressionResultUnavailable;
}
+ } else {
+ diagnostic_manager.PutCString(
+ eDiagnosticSeverityError,
+ "Expression can't be run, because there is no JIT compiled function");
+ return lldb::eExpressionSetupError;
+ }
+}
- result = GetResultAfterDematerialization(exe_ctx.GetBestExecutionContextScope());
+bool LLVMUserExpression::FinalizeJITExecution(
+ DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx,
+ lldb::ExpressionVariableSP &result, lldb::addr_t function_stack_bottom,
+ lldb::addr_t function_stack_top) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+
+ if (log)
+ log->Printf("-- [UserExpression::FinalizeJITExecution] Dematerializing "
+ "after execution --");
+
+ if (!m_dematerializer_sp) {
+ diagnostic_manager.Printf(eDiagnosticSeverityError,
+ "Couldn't apply expression side effects : no "
+ "dematerializer is present");
+ return false;
+ }
+
+ Error dematerialize_error;
+
+ m_dematerializer_sp->Dematerialize(dematerialize_error, function_stack_bottom,
+ function_stack_top);
+
+ if (!dematerialize_error.Success()) {
+ diagnostic_manager.Printf(eDiagnosticSeverityError,
+ "Couldn't apply expression side effects : %s",
+ dematerialize_error.AsCString("unknown error"));
+ return false;
+ }
+
+ result =
+ GetResultAfterDematerialization(exe_ctx.GetBestExecutionContextScope());
- if (result)
- result->TransferAddress();
+ if (result)
+ result->TransferAddress();
- m_dematerializer_sp.reset();
+ m_dematerializer_sp.reset();
- return true;
+ return true;
}
-bool
-LLVMUserExpression::PrepareToExecuteJITExpression(DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx,
- lldb::addr_t &struct_address)
-{
- lldb::TargetSP target;
- lldb::ProcessSP process;
- lldb::StackFrameSP frame;
-
- if (!LockAndCheckContext(exe_ctx, target, process, frame))
- {
- diagnostic_manager.PutCString(eDiagnosticSeverityError,
- "The context has changed before we could JIT the expression!");
+bool LLVMUserExpression::PrepareToExecuteJITExpression(
+ DiagnosticManager &diagnostic_manager, ExecutionContext &exe_ctx,
+ lldb::addr_t &struct_address) {
+ lldb::TargetSP target;
+ lldb::ProcessSP process;
+ lldb::StackFrameSP frame;
+
+ if (!LockAndCheckContext(exe_ctx, target, process, frame)) {
+ diagnostic_manager.PutCString(
+ eDiagnosticSeverityError,
+ "The context has changed before we could JIT the expression!");
+ return false;
+ }
+
+ if (m_jit_start_addr != LLDB_INVALID_ADDRESS || m_can_interpret) {
+ if (m_materialized_address == LLDB_INVALID_ADDRESS) {
+ Error alloc_error;
+
+ IRMemoryMap::AllocationPolicy policy =
+ m_can_interpret ? IRMemoryMap::eAllocationPolicyHostOnly
+ : IRMemoryMap::eAllocationPolicyMirror;
+
+ const bool zero_memory = false;
+
+ m_materialized_address = m_execution_unit_sp->Malloc(
+ m_materializer_ap->GetStructByteSize(),
+ m_materializer_ap->GetStructAlignment(),
+ lldb::ePermissionsReadable | lldb::ePermissionsWritable, policy,
+ zero_memory, alloc_error);
+
+ if (!alloc_error.Success()) {
+ diagnostic_manager.Printf(
+ eDiagnosticSeverityError,
+ "Couldn't allocate space for materialized struct: %s",
+ alloc_error.AsCString());
return false;
+ }
}
- if (m_jit_start_addr != LLDB_INVALID_ADDRESS || m_can_interpret)
- {
- if (m_materialized_address == LLDB_INVALID_ADDRESS)
- {
- Error alloc_error;
-
- IRMemoryMap::AllocationPolicy policy =
- m_can_interpret ? IRMemoryMap::eAllocationPolicyHostOnly : IRMemoryMap::eAllocationPolicyMirror;
-
- const bool zero_memory = false;
-
- m_materialized_address = m_execution_unit_sp->Malloc(m_materializer_ap->GetStructByteSize(),
- m_materializer_ap->GetStructAlignment(),
- lldb::ePermissionsReadable | lldb::ePermissionsWritable,
- policy,
- zero_memory,
- alloc_error);
-
- if (!alloc_error.Success())
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError,
- "Couldn't allocate space for materialized struct: %s",
- alloc_error.AsCString());
- return false;
- }
- }
+ struct_address = m_materialized_address;
- struct_address = m_materialized_address;
+ if (m_can_interpret && m_stack_frame_bottom == LLDB_INVALID_ADDRESS) {
+ Error alloc_error;
- if (m_can_interpret && m_stack_frame_bottom == LLDB_INVALID_ADDRESS)
- {
- Error alloc_error;
-
- const size_t stack_frame_size = 512 * 1024;
-
- const bool zero_memory = false;
-
- m_stack_frame_bottom = m_execution_unit_sp->Malloc(stack_frame_size,
- 8,
- lldb::ePermissionsReadable | lldb::ePermissionsWritable,
- IRMemoryMap::eAllocationPolicyHostOnly,
- zero_memory,
- alloc_error);
-
- m_stack_frame_top = m_stack_frame_bottom + stack_frame_size;
-
- if (!alloc_error.Success())
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "Couldn't allocate space for the stack frame: %s",
- alloc_error.AsCString());
- return false;
- }
- }
+ const size_t stack_frame_size = 512 * 1024;
- Error materialize_error;
+ const bool zero_memory = false;
- m_dematerializer_sp =
- m_materializer_ap->Materialize(frame, *m_execution_unit_sp, struct_address, materialize_error);
+ m_stack_frame_bottom = m_execution_unit_sp->Malloc(
+ stack_frame_size, 8,
+ lldb::ePermissionsReadable | lldb::ePermissionsWritable,
+ IRMemoryMap::eAllocationPolicyHostOnly, zero_memory, alloc_error);
- if (!materialize_error.Success())
- {
- diagnostic_manager.Printf(eDiagnosticSeverityError, "Couldn't materialize: %s",
- materialize_error.AsCString());
- return false;
- }
+ m_stack_frame_top = m_stack_frame_bottom + stack_frame_size;
+
+ if (!alloc_error.Success()) {
+ diagnostic_manager.Printf(
+ eDiagnosticSeverityError,
+ "Couldn't allocate space for the stack frame: %s",
+ alloc_error.AsCString());
+ return false;
+ }
+ }
+
+ Error materialize_error;
+
+ m_dematerializer_sp = m_materializer_ap->Materialize(
+ frame, *m_execution_unit_sp, struct_address, materialize_error);
+
+ if (!materialize_error.Success()) {
+ diagnostic_manager.Printf(eDiagnosticSeverityError,
+ "Couldn't materialize: %s",
+ materialize_error.AsCString());
+ return false;
}
- return true;
+ }
+ return true;
}
-lldb::ModuleSP
-LLVMUserExpression::GetJITModule()
-{
- if (m_execution_unit_sp)
- return m_execution_unit_sp->GetJITModule();
- return lldb::ModuleSP();
+lldb::ModuleSP LLVMUserExpression::GetJITModule() {
+ if (m_execution_unit_sp)
+ return m_execution_unit_sp->GetJITModule();
+ return lldb::ModuleSP();
}
Modified: lldb/trunk/source/Expression/Materializer.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/Materializer.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/Materializer.cpp (original)
+++ lldb/trunk/source/Expression/Materializer.cpp Tue Sep 6 15:57:50 2016
@@ -11,12 +11,12 @@
// C++ Includes
// Other libraries and framework includes
// Project includes
+#include "lldb/Expression/Materializer.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/RegisterValue.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Core/ValueObjectVariable.h"
#include "lldb/Expression/ExpressionVariable.h"
-#include "lldb/Expression/Materializer.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/Symbol.h"
#include "lldb/Symbol/Type.h"
@@ -29,1495 +29,1436 @@
using namespace lldb_private;
-uint32_t
-Materializer::AddStructMember (Entity &entity)
-{
- uint32_t size = entity.GetSize();
- uint32_t alignment = entity.GetAlignment();
+uint32_t Materializer::AddStructMember(Entity &entity) {
+ uint32_t size = entity.GetSize();
+ uint32_t alignment = entity.GetAlignment();
- uint32_t ret;
+ uint32_t ret;
- if (m_current_offset == 0)
- m_struct_alignment = alignment;
+ if (m_current_offset == 0)
+ m_struct_alignment = alignment;
- if (m_current_offset % alignment)
- m_current_offset += (alignment - (m_current_offset % alignment));
+ if (m_current_offset % alignment)
+ m_current_offset += (alignment - (m_current_offset % alignment));
- ret = m_current_offset;
+ ret = m_current_offset;
- m_current_offset += size;
+ m_current_offset += size;
- return ret;
+ return ret;
}
-void
-Materializer::Entity::SetSizeAndAlignmentFromType (CompilerType &type)
-{
- m_size = type.GetByteSize(nullptr);
+void Materializer::Entity::SetSizeAndAlignmentFromType(CompilerType &type) {
+ m_size = type.GetByteSize(nullptr);
- uint32_t bit_alignment = type.GetTypeBitAlign();
+ uint32_t bit_alignment = type.GetTypeBitAlign();
- if (bit_alignment % 8)
- {
- bit_alignment += 8;
- bit_alignment &= ~((uint32_t)0x111u);
- }
+ if (bit_alignment % 8) {
+ bit_alignment += 8;
+ bit_alignment &= ~((uint32_t)0x111u);
+ }
- m_alignment = bit_alignment / 8;
+ m_alignment = bit_alignment / 8;
}
-class EntityPersistentVariable : public Materializer::Entity
-{
+class EntityPersistentVariable : public Materializer::Entity {
public:
- EntityPersistentVariable (lldb::ExpressionVariableSP &persistent_variable_sp,
- Materializer::PersistentVariableDelegate *delegate) :
- Entity(),
- m_persistent_variable_sp(persistent_variable_sp),
- m_delegate(delegate)
- {
- // Hard-coding to maximum size of a pointer since persistent variables are materialized by reference
- m_size = 8;
- m_alignment = 8;
- }
+ EntityPersistentVariable(lldb::ExpressionVariableSP &persistent_variable_sp,
+ Materializer::PersistentVariableDelegate *delegate)
+ : Entity(), m_persistent_variable_sp(persistent_variable_sp),
+ m_delegate(delegate) {
+ // Hard-coding to maximum size of a pointer since persistent variables are
+ // materialized by reference
+ m_size = 8;
+ m_alignment = 8;
+ }
- void MakeAllocation (IRMemoryMap &map, Error &err)
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ void MakeAllocation(IRMemoryMap &map, Error &err) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- // Allocate a spare memory area to store the persistent variable's contents.
+ // Allocate a spare memory area to store the persistent variable's contents.
- Error allocate_error;
- const bool zero_memory = false;
+ Error allocate_error;
+ const bool zero_memory = false;
- lldb::addr_t mem = map.Malloc(m_persistent_variable_sp->GetByteSize(),
- 8,
- lldb::ePermissionsReadable | lldb::ePermissionsWritable,
- IRMemoryMap::eAllocationPolicyMirror,
- zero_memory,
- allocate_error);
-
- if (!allocate_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't allocate a memory area to store %s: %s", m_persistent_variable_sp->GetName().GetCString(), allocate_error.AsCString());
- return;
- }
+ lldb::addr_t mem = map.Malloc(
+ m_persistent_variable_sp->GetByteSize(), 8,
+ lldb::ePermissionsReadable | lldb::ePermissionsWritable,
+ IRMemoryMap::eAllocationPolicyMirror, zero_memory, allocate_error);
- if (log)
- log->Printf("Allocated %s (0x%" PRIx64 ") successfully", m_persistent_variable_sp->GetName().GetCString(), mem);
+ if (!allocate_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't allocate a memory area to store %s: %s",
+ m_persistent_variable_sp->GetName().GetCString(),
+ allocate_error.AsCString());
+ return;
+ }
- // Put the location of the spare memory into the live data of the ValueObject.
+ if (log)
+ log->Printf("Allocated %s (0x%" PRIx64 ") successfully",
+ m_persistent_variable_sp->GetName().GetCString(), mem);
- m_persistent_variable_sp->m_live_sp = ValueObjectConstResult::Create (map.GetBestExecutionContextScope(),
- m_persistent_variable_sp->GetCompilerType(),
- m_persistent_variable_sp->GetName(),
- mem,
- eAddressTypeLoad,
- map.GetAddressByteSize());
-
- // Clear the flag if the variable will never be deallocated.
-
- if (m_persistent_variable_sp->m_flags & ExpressionVariable::EVKeepInTarget)
- {
- Error leak_error;
- map.Leak(mem, leak_error);
- m_persistent_variable_sp->m_flags &= ~ExpressionVariable::EVNeedsAllocation;
- }
+ // Put the location of the spare memory into the live data of the
+ // ValueObject.
- // Write the contents of the variable to the area.
+ m_persistent_variable_sp->m_live_sp = ValueObjectConstResult::Create(
+ map.GetBestExecutionContextScope(),
+ m_persistent_variable_sp->GetCompilerType(),
+ m_persistent_variable_sp->GetName(), mem, eAddressTypeLoad,
+ map.GetAddressByteSize());
- Error write_error;
+ // Clear the flag if the variable will never be deallocated.
- map.WriteMemory (mem,
- m_persistent_variable_sp->GetValueBytes(),
- m_persistent_variable_sp->GetByteSize(),
- write_error);
-
- if (!write_error.Success())
- {
- err.SetErrorStringWithFormat ("couldn't write %s to the target: %s", m_persistent_variable_sp->GetName().AsCString(),
- write_error.AsCString());
- return;
- }
+ if (m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVKeepInTarget) {
+ Error leak_error;
+ map.Leak(mem, leak_error);
+ m_persistent_variable_sp->m_flags &=
+ ~ExpressionVariable::EVNeedsAllocation;
}
- void DestroyAllocation (IRMemoryMap &map, Error &err)
- {
- Error deallocate_error;
+ // Write the contents of the variable to the area.
- map.Free((lldb::addr_t)m_persistent_variable_sp->m_live_sp->GetValue().GetScalar().ULongLong(), deallocate_error);
+ Error write_error;
- m_persistent_variable_sp->m_live_sp.reset();
+ map.WriteMemory(mem, m_persistent_variable_sp->GetValueBytes(),
+ m_persistent_variable_sp->GetByteSize(), write_error);
- if (!deallocate_error.Success())
- {
- err.SetErrorStringWithFormat ("couldn't deallocate memory for %s: %s", m_persistent_variable_sp->GetName().GetCString(), deallocate_error.AsCString());
- }
+ if (!write_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write %s to the target: %s",
+ m_persistent_variable_sp->GetName().AsCString(),
+ write_error.AsCString());
+ return;
}
+ }
- void Materialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ void DestroyAllocation(IRMemoryMap &map, Error &err) {
+ Error deallocate_error;
- const lldb::addr_t load_addr = process_address + m_offset;
+ map.Free((lldb::addr_t)m_persistent_variable_sp->m_live_sp->GetValue()
+ .GetScalar()
+ .ULongLong(),
+ deallocate_error);
- if (log)
- {
- log->Printf("EntityPersistentVariable::Materialize [address = 0x%" PRIx64 ", m_name = %s, m_flags = 0x%hx]",
- (uint64_t)load_addr,
- m_persistent_variable_sp->GetName().AsCString(),
- m_persistent_variable_sp->m_flags);
- }
+ m_persistent_variable_sp->m_live_sp.reset();
+
+ if (!deallocate_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't deallocate memory for %s: %s",
+ m_persistent_variable_sp->GetName().GetCString(),
+ deallocate_error.AsCString());
+ }
+ }
- if (m_persistent_variable_sp->m_flags & ExpressionVariable::EVNeedsAllocation)
- {
- MakeAllocation(map, err);
- m_persistent_variable_sp->m_flags |= ExpressionVariable::EVIsLLDBAllocated;
+ void Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- if (!err.Success())
- return;
- }
+ const lldb::addr_t load_addr = process_address + m_offset;
- if ((m_persistent_variable_sp->m_flags & ExpressionVariable::EVIsProgramReference && m_persistent_variable_sp->m_live_sp) ||
- m_persistent_variable_sp->m_flags & ExpressionVariable::EVIsLLDBAllocated)
- {
- Error write_error;
-
- map.WriteScalarToMemory(load_addr,
- m_persistent_variable_sp->m_live_sp->GetValue().GetScalar(),
- map.GetAddressByteSize(),
- write_error);
-
- if (!write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the location of %s to memory: %s", m_persistent_variable_sp->GetName().AsCString(), write_error.AsCString());
- }
- }
- else
- {
- err.SetErrorStringWithFormat("no materialization happened for persistent variable %s", m_persistent_variable_sp->GetName().AsCString());
- return;
- }
+ if (log) {
+ log->Printf("EntityPersistentVariable::Materialize [address = 0x%" PRIx64
+ ", m_name = %s, m_flags = 0x%hx]",
+ (uint64_t)load_addr,
+ m_persistent_variable_sp->GetName().AsCString(),
+ m_persistent_variable_sp->m_flags);
}
- void Dematerialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- lldb::addr_t frame_top,
- lldb::addr_t frame_bottom,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ if (m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVNeedsAllocation) {
+ MakeAllocation(map, err);
+ m_persistent_variable_sp->m_flags |=
+ ExpressionVariable::EVIsLLDBAllocated;
+
+ if (!err.Success())
+ return;
+ }
- const lldb::addr_t load_addr = process_address + m_offset;
+ if ((m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVIsProgramReference &&
+ m_persistent_variable_sp->m_live_sp) ||
+ m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVIsLLDBAllocated) {
+ Error write_error;
+
+ map.WriteScalarToMemory(
+ load_addr,
+ m_persistent_variable_sp->m_live_sp->GetValue().GetScalar(),
+ map.GetAddressByteSize(), write_error);
+
+ if (!write_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write the location of %s to memory: %s",
+ m_persistent_variable_sp->GetName().AsCString(),
+ write_error.AsCString());
+ }
+ } else {
+ err.SetErrorStringWithFormat(
+ "no materialization happened for persistent variable %s",
+ m_persistent_variable_sp->GetName().AsCString());
+ return;
+ }
+ }
+
+ void Dematerialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, lldb::addr_t frame_top,
+ lldb::addr_t frame_bottom, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+
+ const lldb::addr_t load_addr = process_address + m_offset;
+
+ if (log) {
+ log->Printf(
+ "EntityPersistentVariable::Dematerialize [address = 0x%" PRIx64
+ ", m_name = %s, m_flags = 0x%hx]",
+ (uint64_t)process_address + m_offset,
+ m_persistent_variable_sp->GetName().AsCString(),
+ m_persistent_variable_sp->m_flags);
+ }
+
+ if (m_delegate) {
+ m_delegate->DidDematerialize(m_persistent_variable_sp);
+ }
+
+ if ((m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVIsLLDBAllocated) ||
+ (m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVIsProgramReference)) {
+ if (m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVIsProgramReference &&
+ !m_persistent_variable_sp->m_live_sp) {
+ // If the reference comes from the program, then the
+ // ClangExpressionVariable's
+ // live variable data hasn't been set up yet. Do this now.
+ lldb::addr_t location;
+ Error read_error;
+
+ map.ReadPointerFromMemory(&location, load_addr, read_error);
+
+ if (!read_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't read the address of program-allocated variable %s: %s",
+ m_persistent_variable_sp->GetName().GetCString(),
+ read_error.AsCString());
+ return;
+ }
+
+ m_persistent_variable_sp->m_live_sp = ValueObjectConstResult::Create(
+ map.GetBestExecutionContextScope(),
+ m_persistent_variable_sp.get()->GetCompilerType(),
+ m_persistent_variable_sp->GetName(), location, eAddressTypeLoad,
+ m_persistent_variable_sp->GetByteSize());
+
+ if (frame_top != LLDB_INVALID_ADDRESS &&
+ frame_bottom != LLDB_INVALID_ADDRESS && location >= frame_bottom &&
+ location <= frame_top) {
+ // If the variable is resident in the stack frame created by the
+ // expression,
+ // then it cannot be relied upon to stay around. We treat it as
+ // needing
+ // reallocation.
+ m_persistent_variable_sp->m_flags |=
+ ExpressionVariable::EVIsLLDBAllocated;
+ m_persistent_variable_sp->m_flags |=
+ ExpressionVariable::EVNeedsAllocation;
+ m_persistent_variable_sp->m_flags |=
+ ExpressionVariable::EVNeedsFreezeDry;
+ m_persistent_variable_sp->m_flags &=
+ ~ExpressionVariable::EVIsProgramReference;
+ }
+ }
+
+ lldb::addr_t mem = m_persistent_variable_sp->m_live_sp->GetValue()
+ .GetScalar()
+ .ULongLong();
+
+ if (!m_persistent_variable_sp->m_live_sp) {
+ err.SetErrorStringWithFormat(
+ "couldn't find the memory area used to store %s",
+ m_persistent_variable_sp->GetName().GetCString());
+ return;
+ }
+
+ if (m_persistent_variable_sp->m_live_sp->GetValue()
+ .GetValueAddressType() != eAddressTypeLoad) {
+ err.SetErrorStringWithFormat(
+ "the address of the memory area for %s is in an incorrect format",
+ m_persistent_variable_sp->GetName().GetCString());
+ return;
+ }
+
+ if (m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVNeedsFreezeDry ||
+ m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVKeepInTarget) {
if (log)
- {
- log->Printf("EntityPersistentVariable::Dematerialize [address = 0x%" PRIx64 ", m_name = %s, m_flags = 0x%hx]",
- (uint64_t)process_address + m_offset,
- m_persistent_variable_sp->GetName().AsCString(),
- m_persistent_variable_sp->m_flags);
- }
+ log->Printf(
+ "Dematerializing %s from 0x%" PRIx64 " (size = %llu)",
+ m_persistent_variable_sp->GetName().GetCString(), (uint64_t)mem,
+ (unsigned long long)m_persistent_variable_sp->GetByteSize());
- if (m_delegate)
- {
- m_delegate->DidDematerialize(m_persistent_variable_sp);
- }
+ // Read the contents of the spare memory area
- if ((m_persistent_variable_sp->m_flags & ExpressionVariable::EVIsLLDBAllocated) ||
- (m_persistent_variable_sp->m_flags & ExpressionVariable::EVIsProgramReference))
- {
- if (m_persistent_variable_sp->m_flags & ExpressionVariable::EVIsProgramReference &&
- !m_persistent_variable_sp->m_live_sp)
- {
- // If the reference comes from the program, then the ClangExpressionVariable's
- // live variable data hasn't been set up yet. Do this now.
-
- lldb::addr_t location;
- Error read_error;
-
- map.ReadPointerFromMemory(&location, load_addr, read_error);
-
- if (!read_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't read the address of program-allocated variable %s: %s", m_persistent_variable_sp->GetName().GetCString(), read_error.AsCString());
- return;
- }
-
- m_persistent_variable_sp->m_live_sp = ValueObjectConstResult::Create (map.GetBestExecutionContextScope (),
- m_persistent_variable_sp.get()->GetCompilerType(),
- m_persistent_variable_sp->GetName(),
- location,
- eAddressTypeLoad,
- m_persistent_variable_sp->GetByteSize());
-
- if (frame_top != LLDB_INVALID_ADDRESS &&
- frame_bottom != LLDB_INVALID_ADDRESS &&
- location >= frame_bottom &&
- location <= frame_top)
- {
- // If the variable is resident in the stack frame created by the expression,
- // then it cannot be relied upon to stay around. We treat it as needing
- // reallocation.
- m_persistent_variable_sp->m_flags |= ExpressionVariable::EVIsLLDBAllocated;
- m_persistent_variable_sp->m_flags |= ExpressionVariable::EVNeedsAllocation;
- m_persistent_variable_sp->m_flags |= ExpressionVariable::EVNeedsFreezeDry;
- m_persistent_variable_sp->m_flags &= ~ExpressionVariable::EVIsProgramReference;
- }
- }
-
- lldb::addr_t mem = m_persistent_variable_sp->m_live_sp->GetValue().GetScalar().ULongLong();
-
- if (!m_persistent_variable_sp->m_live_sp)
- {
- err.SetErrorStringWithFormat("couldn't find the memory area used to store %s", m_persistent_variable_sp->GetName().GetCString());
- return;
- }
-
- if (m_persistent_variable_sp->m_live_sp->GetValue().GetValueAddressType() != eAddressTypeLoad)
- {
- err.SetErrorStringWithFormat("the address of the memory area for %s is in an incorrect format", m_persistent_variable_sp->GetName().GetCString());
- return;
- }
-
- if (m_persistent_variable_sp->m_flags & ExpressionVariable::EVNeedsFreezeDry ||
- m_persistent_variable_sp->m_flags & ExpressionVariable::EVKeepInTarget)
- {
- if (log)
- log->Printf("Dematerializing %s from 0x%" PRIx64 " (size = %llu)", m_persistent_variable_sp->GetName().GetCString(), (uint64_t)mem, (unsigned long long)m_persistent_variable_sp->GetByteSize());
-
- // Read the contents of the spare memory area
-
- m_persistent_variable_sp->ValueUpdated ();
-
- Error read_error;
-
- map.ReadMemory(m_persistent_variable_sp->GetValueBytes(),
- mem,
- m_persistent_variable_sp->GetByteSize(),
- read_error);
-
- if (!read_error.Success())
- {
- err.SetErrorStringWithFormat ("couldn't read the contents of %s from memory: %s", m_persistent_variable_sp->GetName().GetCString(), read_error.AsCString());
- return;
- }
+ m_persistent_variable_sp->ValueUpdated();
- m_persistent_variable_sp->m_flags &= ~ExpressionVariable::EVNeedsFreezeDry;
- }
- }
- else
- {
- err.SetErrorStringWithFormat("no dematerialization happened for persistent variable %s", m_persistent_variable_sp->GetName().AsCString());
- return;
- }
+ Error read_error;
- lldb::ProcessSP process_sp = map.GetBestExecutionContextScope()->CalculateProcess();
- if (!process_sp ||
- !process_sp->CanJIT())
- {
- // Allocations are not persistent so persistent variables cannot stay materialized.
-
- m_persistent_variable_sp->m_flags |= ExpressionVariable::EVNeedsAllocation;
-
- DestroyAllocation(map, err);
- if (!err.Success())
- return;
- }
- else if (m_persistent_variable_sp->m_flags & ExpressionVariable::EVNeedsAllocation &&
- !(m_persistent_variable_sp->m_flags & ExpressionVariable::EVKeepInTarget))
- {
- DestroyAllocation(map, err);
- if (!err.Success())
- return;
- }
+ map.ReadMemory(m_persistent_variable_sp->GetValueBytes(), mem,
+ m_persistent_variable_sp->GetByteSize(), read_error);
+
+ if (!read_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't read the contents of %s from memory: %s",
+ m_persistent_variable_sp->GetName().GetCString(),
+ read_error.AsCString());
+ return;
+ }
+
+ m_persistent_variable_sp->m_flags &=
+ ~ExpressionVariable::EVNeedsFreezeDry;
+ }
+ } else {
+ err.SetErrorStringWithFormat(
+ "no dematerialization happened for persistent variable %s",
+ m_persistent_variable_sp->GetName().AsCString());
+ return;
+ }
+
+ lldb::ProcessSP process_sp =
+ map.GetBestExecutionContextScope()->CalculateProcess();
+ if (!process_sp || !process_sp->CanJIT()) {
+ // Allocations are not persistent so persistent variables cannot stay
+ // materialized.
+
+ m_persistent_variable_sp->m_flags |=
+ ExpressionVariable::EVNeedsAllocation;
+
+ DestroyAllocation(map, err);
+ if (!err.Success())
+ return;
+ } else if (m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVNeedsAllocation &&
+ !(m_persistent_variable_sp->m_flags &
+ ExpressionVariable::EVKeepInTarget)) {
+ DestroyAllocation(map, err);
+ if (!err.Success())
+ return;
}
+ }
+
+ void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address,
+ Log *log) override {
+ StreamString dump_stream;
+
+ Error err;
+
+ const lldb::addr_t load_addr = process_address + m_offset;
+
+ dump_stream.Printf("0x%" PRIx64 ": EntityPersistentVariable (%s)\n",
+ load_addr,
+ m_persistent_variable_sp->GetName().AsCString());
- void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address, Log *log) override
{
- StreamString dump_stream;
+ dump_stream.Printf("Pointer:\n");
- Error err;
+ DataBufferHeap data(m_size, 0);
- const lldb::addr_t load_addr = process_address + m_offset;
+ map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
- dump_stream.Printf("0x%" PRIx64 ": EntityPersistentVariable (%s)\n", load_addr, m_persistent_variable_sp->GetName().AsCString());
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
- {
- dump_stream.Printf("Pointer:\n");
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, load_addr);
- DataBufferHeap data (m_size, 0);
+ dump_stream.PutChar('\n');
+ }
+ }
- map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
+ {
+ dump_stream.Printf("Target:\n");
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
+ lldb::addr_t target_address;
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, load_addr);
+ map.ReadPointerFromMemory(&target_address, load_addr, err);
- dump_stream.PutChar('\n');
- }
- }
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataBufferHeap data(m_persistent_variable_sp->GetByteSize(), 0);
- {
- dump_stream.Printf("Target:\n");
+ map.ReadMemory(data.GetBytes(), target_address,
+ m_persistent_variable_sp->GetByteSize(), err);
- lldb::addr_t target_address;
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
- map.ReadPointerFromMemory (&target_address, load_addr, err);
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, target_address);
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataBufferHeap data (m_persistent_variable_sp->GetByteSize(), 0);
-
- map.ReadMemory(data.GetBytes(), target_address, m_persistent_variable_sp->GetByteSize(), err);
-
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
-
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, target_address);
-
- dump_stream.PutChar('\n');
- }
- }
+ dump_stream.PutChar('\n');
}
-
- log->PutCString(dump_stream.GetData());
+ }
}
- void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override
- {
- }
+ log->PutCString(dump_stream.GetData());
+ }
+
+ void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override {}
private:
- lldb::ExpressionVariableSP m_persistent_variable_sp;
- Materializer::PersistentVariableDelegate *m_delegate;
+ lldb::ExpressionVariableSP m_persistent_variable_sp;
+ Materializer::PersistentVariableDelegate *m_delegate;
};
-uint32_t
-Materializer::AddPersistentVariable (lldb::ExpressionVariableSP &persistent_variable_sp,
- PersistentVariableDelegate *delegate,
- Error &err)
-{
- EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
- iter->reset (new EntityPersistentVariable (persistent_variable_sp, delegate));
- uint32_t ret = AddStructMember(**iter);
- (*iter)->SetOffset(ret);
- return ret;
+uint32_t Materializer::AddPersistentVariable(
+ lldb::ExpressionVariableSP &persistent_variable_sp,
+ PersistentVariableDelegate *delegate, Error &err) {
+ EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
+ iter->reset(new EntityPersistentVariable(persistent_variable_sp, delegate));
+ uint32_t ret = AddStructMember(**iter);
+ (*iter)->SetOffset(ret);
+ return ret;
}
-class EntityVariable : public Materializer::Entity
-{
+class EntityVariable : public Materializer::Entity {
public:
- EntityVariable (lldb::VariableSP &variable_sp) :
- Entity(),
- m_variable_sp(variable_sp),
- m_is_reference(false),
+ EntityVariable(lldb::VariableSP &variable_sp)
+ : Entity(), m_variable_sp(variable_sp), m_is_reference(false),
m_temporary_allocation(LLDB_INVALID_ADDRESS),
- m_temporary_allocation_size(0)
- {
- // Hard-coding to maximum size of a pointer since all variables are materialized by reference
- m_size = 8;
- m_alignment = 8;
- m_is_reference = m_variable_sp->GetType()->GetForwardCompilerType ().IsReferenceType();
- }
+ m_temporary_allocation_size(0) {
+ // Hard-coding to maximum size of a pointer since all variables are
+ // materialized by reference
+ m_size = 8;
+ m_alignment = 8;
+ m_is_reference =
+ m_variable_sp->GetType()->GetForwardCompilerType().IsReferenceType();
+ }
+
+ void Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
+
+ const lldb::addr_t load_addr = process_address + m_offset;
+ if (log) {
+ log->Printf("EntityVariable::Materialize [address = 0x%" PRIx64
+ ", m_variable_sp = %s]",
+ (uint64_t)load_addr, m_variable_sp->GetName().AsCString());
+ }
+
+ ExecutionContextScope *scope = frame_sp.get();
+
+ if (!scope)
+ scope = map.GetBestExecutionContextScope();
+
+ lldb::ValueObjectSP valobj_sp =
+ ValueObjectVariable::Create(scope, m_variable_sp);
+
+ if (!valobj_sp) {
+ err.SetErrorStringWithFormat(
+ "couldn't get a value object for variable %s",
+ m_variable_sp->GetName().AsCString());
+ return;
+ }
+
+ Error valobj_error = valobj_sp->GetError();
+
+ if (valobj_error.Fail()) {
+ err.SetErrorStringWithFormat("couldn't get the value of variable %s: %s",
+ m_variable_sp->GetName().AsCString(),
+ valobj_error.AsCString());
+ return;
+ }
+
+ if (m_is_reference) {
+ DataExtractor valobj_extractor;
+ Error extract_error;
+ valobj_sp->GetData(valobj_extractor, extract_error);
+
+ if (!extract_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't read contents of reference variable %s: %s",
+ m_variable_sp->GetName().AsCString(), extract_error.AsCString());
+ return;
+ }
- void Materialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ lldb::offset_t offset = 0;
+ lldb::addr_t reference_addr = valobj_extractor.GetAddress(&offset);
- const lldb::addr_t load_addr = process_address + m_offset;
- if (log)
- {
- log->Printf("EntityVariable::Materialize [address = 0x%" PRIx64 ", m_variable_sp = %s]",
- (uint64_t)load_addr,
- m_variable_sp->GetName().AsCString());
- }
+ Error write_error;
+ map.WritePointerToMemory(load_addr, reference_addr, write_error);
+
+ if (!write_error.Success()) {
+ err.SetErrorStringWithFormat("couldn't write the contents of reference "
+ "variable %s to memory: %s",
+ m_variable_sp->GetName().AsCString(),
+ write_error.AsCString());
+ return;
+ }
+ } else {
+ AddressType address_type = eAddressTypeInvalid;
+ const bool scalar_is_load_address = false;
+ lldb::addr_t addr_of_valobj =
+ valobj_sp->GetAddressOf(scalar_is_load_address, &address_type);
+ if (addr_of_valobj != LLDB_INVALID_ADDRESS) {
+ Error write_error;
+ map.WritePointerToMemory(load_addr, addr_of_valobj, write_error);
- ExecutionContextScope *scope = frame_sp.get();
+ if (!write_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write the address of variable %s to memory: %s",
+ m_variable_sp->GetName().AsCString(), write_error.AsCString());
+ return;
+ }
+ } else {
+ DataExtractor data;
+ Error extract_error;
+ valobj_sp->GetData(data, extract_error);
+ if (!extract_error.Success()) {
+ err.SetErrorStringWithFormat("couldn't get the value of %s: %s",
+ m_variable_sp->GetName().AsCString(),
+ extract_error.AsCString());
+ return;
+ }
+
+ if (m_temporary_allocation != LLDB_INVALID_ADDRESS) {
+ err.SetErrorStringWithFormat(
+ "trying to create a temporary region for %s but one exists",
+ m_variable_sp->GetName().AsCString());
+ return;
+ }
+
+ if (data.GetByteSize() < m_variable_sp->GetType()->GetByteSize()) {
+ if (data.GetByteSize() == 0 &&
+ m_variable_sp->LocationExpression().IsValid() == false) {
+ err.SetErrorStringWithFormat("the variable '%s' has no location, "
+ "it may have been optimized out",
+ m_variable_sp->GetName().AsCString());
+ } else {
+ err.SetErrorStringWithFormat(
+ "size of variable %s (%" PRIu64
+ ") is larger than the ValueObject's size (%" PRIu64 ")",
+ m_variable_sp->GetName().AsCString(),
+ m_variable_sp->GetType()->GetByteSize(), data.GetByteSize());
+ }
+ return;
+ }
+
+ size_t bit_align =
+ m_variable_sp->GetType()->GetLayoutCompilerType().GetTypeBitAlign();
+ size_t byte_align = (bit_align + 7) / 8;
- if (!scope)
- scope = map.GetBestExecutionContextScope();
+ if (!byte_align)
+ byte_align = 1;
- lldb::ValueObjectSP valobj_sp = ValueObjectVariable::Create(scope, m_variable_sp);
+ Error alloc_error;
+ const bool zero_memory = false;
- if (!valobj_sp)
- {
- err.SetErrorStringWithFormat("couldn't get a value object for variable %s", m_variable_sp->GetName().AsCString());
- return;
+ m_temporary_allocation = map.Malloc(
+ data.GetByteSize(), byte_align,
+ lldb::ePermissionsReadable | lldb::ePermissionsWritable,
+ IRMemoryMap::eAllocationPolicyMirror, zero_memory, alloc_error);
+
+ m_temporary_allocation_size = data.GetByteSize();
+
+ m_original_data.reset(
+ new DataBufferHeap(data.GetDataStart(), data.GetByteSize()));
+
+ if (!alloc_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't allocate a temporary region for %s: %s",
+ m_variable_sp->GetName().AsCString(), alloc_error.AsCString());
+ return;
}
- Error valobj_error = valobj_sp->GetError();
+ Error write_error;
- if (valobj_error.Fail())
- {
- err.SetErrorStringWithFormat("couldn't get the value of variable %s: %s", m_variable_sp->GetName().AsCString(), valobj_error.AsCString());
- return;
- }
+ map.WriteMemory(m_temporary_allocation, data.GetDataStart(),
+ data.GetByteSize(), write_error);
- if (m_is_reference)
- {
- DataExtractor valobj_extractor;
- Error extract_error;
- valobj_sp->GetData(valobj_extractor, extract_error);
-
- if (!extract_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't read contents of reference variable %s: %s", m_variable_sp->GetName().AsCString(), extract_error.AsCString());
- return;
- }
-
- lldb::offset_t offset = 0;
- lldb::addr_t reference_addr = valobj_extractor.GetAddress(&offset);
-
- Error write_error;
- map.WritePointerToMemory(load_addr, reference_addr, write_error);
-
- if (!write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the contents of reference variable %s to memory: %s", m_variable_sp->GetName().AsCString(), write_error.AsCString());
- return;
- }
- }
- else
- {
- AddressType address_type = eAddressTypeInvalid;
- const bool scalar_is_load_address = false;
- lldb::addr_t addr_of_valobj = valobj_sp->GetAddressOf(scalar_is_load_address, &address_type);
- if (addr_of_valobj != LLDB_INVALID_ADDRESS)
- {
- Error write_error;
- map.WritePointerToMemory(load_addr, addr_of_valobj, write_error);
-
- if (!write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the address of variable %s to memory: %s", m_variable_sp->GetName().AsCString(), write_error.AsCString());
- return;
- }
- }
- else
- {
- DataExtractor data;
- Error extract_error;
- valobj_sp->GetData(data, extract_error);
- if (!extract_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't get the value of %s: %s", m_variable_sp->GetName().AsCString(), extract_error.AsCString());
- return;
- }
-
- if (m_temporary_allocation != LLDB_INVALID_ADDRESS)
- {
- err.SetErrorStringWithFormat("trying to create a temporary region for %s but one exists", m_variable_sp->GetName().AsCString());
- return;
- }
-
- if (data.GetByteSize() < m_variable_sp->GetType()->GetByteSize())
- {
- if (data.GetByteSize() == 0 && m_variable_sp->LocationExpression().IsValid() == false)
- {
- err.SetErrorStringWithFormat("the variable '%s' has no location, it may have been optimized out", m_variable_sp->GetName().AsCString());
- }
- else
- {
- err.SetErrorStringWithFormat("size of variable %s (%" PRIu64 ") is larger than the ValueObject's size (%" PRIu64 ")",
- m_variable_sp->GetName().AsCString(),
- m_variable_sp->GetType()->GetByteSize(),
- data.GetByteSize());
- }
- return;
- }
-
- size_t bit_align = m_variable_sp->GetType()->GetLayoutCompilerType ().GetTypeBitAlign();
- size_t byte_align = (bit_align + 7) / 8;
-
- if (!byte_align)
- byte_align = 1;
-
- Error alloc_error;
- const bool zero_memory = false;
-
- m_temporary_allocation = map.Malloc(data.GetByteSize(),
- byte_align,
- lldb::ePermissionsReadable | lldb::ePermissionsWritable,
- IRMemoryMap::eAllocationPolicyMirror,
- zero_memory,
- alloc_error);
-
- m_temporary_allocation_size = data.GetByteSize();
-
- m_original_data.reset(new DataBufferHeap(data.GetDataStart(), data.GetByteSize()));
-
- if (!alloc_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't allocate a temporary region for %s: %s", m_variable_sp->GetName().AsCString(), alloc_error.AsCString());
- return;
- }
-
- Error write_error;
-
- map.WriteMemory(m_temporary_allocation, data.GetDataStart(), data.GetByteSize(), write_error);
-
- if (!write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write to the temporary region for %s: %s", m_variable_sp->GetName().AsCString(), write_error.AsCString());
- return;
- }
-
- Error pointer_write_error;
-
- map.WritePointerToMemory(load_addr, m_temporary_allocation, pointer_write_error);
-
- if (!pointer_write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the address of the temporary region for %s: %s", m_variable_sp->GetName().AsCString(), pointer_write_error.AsCString());
- }
- }
+ if (!write_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write to the temporary region for %s: %s",
+ m_variable_sp->GetName().AsCString(), write_error.AsCString());
+ return;
}
- }
- void Dematerialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- lldb::addr_t frame_top,
- lldb::addr_t frame_bottom,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ Error pointer_write_error;
- const lldb::addr_t load_addr = process_address + m_offset;
- if (log)
- {
- log->Printf("EntityVariable::Dematerialize [address = 0x%" PRIx64 ", m_variable_sp = %s]",
- (uint64_t)load_addr,
- m_variable_sp->GetName().AsCString());
- }
+ map.WritePointerToMemory(load_addr, m_temporary_allocation,
+ pointer_write_error);
- if (m_temporary_allocation != LLDB_INVALID_ADDRESS)
- {
- ExecutionContextScope *scope = frame_sp.get();
-
- if (!scope)
- scope = map.GetBestExecutionContextScope();
-
- lldb::ValueObjectSP valobj_sp = ValueObjectVariable::Create(scope, m_variable_sp);
-
- if (!valobj_sp)
- {
- err.SetErrorStringWithFormat("couldn't get a value object for variable %s", m_variable_sp->GetName().AsCString());
- return;
- }
-
- lldb_private::DataExtractor data;
-
- Error extract_error;
-
- map.GetMemoryData(data, m_temporary_allocation, valobj_sp->GetByteSize(), extract_error);
-
- if (!extract_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't get the data for variable %s", m_variable_sp->GetName().AsCString());
- return;
- }
-
- bool actually_write = true;
-
- if (m_original_data)
- {
- if ((data.GetByteSize() == m_original_data->GetByteSize()) &&
- !memcmp(m_original_data->GetBytes(), data.GetDataStart(), data.GetByteSize()))
- {
- actually_write = false;
- }
- }
-
- Error set_error;
-
- if (actually_write)
- {
- valobj_sp->SetData(data, set_error);
-
- if (!set_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the new contents of %s back into the variable", m_variable_sp->GetName().AsCString());
- return;
- }
- }
-
- Error free_error;
-
- map.Free(m_temporary_allocation, free_error);
-
- if (!free_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't free the temporary region for %s: %s", m_variable_sp->GetName().AsCString(), free_error.AsCString());
- return;
- }
-
- m_original_data.reset();
- m_temporary_allocation = LLDB_INVALID_ADDRESS;
- m_temporary_allocation_size = 0;
+ if (!pointer_write_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write the address of the temporary region for %s: %s",
+ m_variable_sp->GetName().AsCString(),
+ pointer_write_error.AsCString());
}
+ }
}
+ }
- void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address, Log *log) override
- {
- StreamString dump_stream;
-
- const lldb::addr_t load_addr = process_address + m_offset;
- dump_stream.Printf("0x%" PRIx64 ": EntityVariable\n", load_addr);
+ void Dematerialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, lldb::addr_t frame_top,
+ lldb::addr_t frame_bottom, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- Error err;
+ const lldb::addr_t load_addr = process_address + m_offset;
+ if (log) {
+ log->Printf("EntityVariable::Dematerialize [address = 0x%" PRIx64
+ ", m_variable_sp = %s]",
+ (uint64_t)load_addr, m_variable_sp->GetName().AsCString());
+ }
- lldb::addr_t ptr = LLDB_INVALID_ADDRESS;
+ if (m_temporary_allocation != LLDB_INVALID_ADDRESS) {
+ ExecutionContextScope *scope = frame_sp.get();
- {
- dump_stream.Printf("Pointer:\n");
+ if (!scope)
+ scope = map.GetBestExecutionContextScope();
- DataBufferHeap data (m_size, 0);
+ lldb::ValueObjectSP valobj_sp =
+ ValueObjectVariable::Create(scope, m_variable_sp);
- map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
+ if (!valobj_sp) {
+ err.SetErrorStringWithFormat(
+ "couldn't get a value object for variable %s",
+ m_variable_sp->GetName().AsCString());
+ return;
+ }
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
+ lldb_private::DataExtractor data;
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, load_addr);
+ Error extract_error;
- lldb::offset_t offset;
+ map.GetMemoryData(data, m_temporary_allocation, valobj_sp->GetByteSize(),
+ extract_error);
- ptr = extractor.GetPointer(&offset);
+ if (!extract_error.Success()) {
+ err.SetErrorStringWithFormat("couldn't get the data for variable %s",
+ m_variable_sp->GetName().AsCString());
+ return;
+ }
- dump_stream.PutChar('\n');
- }
- }
+ bool actually_write = true;
- if (m_temporary_allocation == LLDB_INVALID_ADDRESS)
- {
- dump_stream.Printf("Points to process memory:\n");
- }
- else
- {
- dump_stream.Printf("Temporary allocation:\n");
+ if (m_original_data) {
+ if ((data.GetByteSize() == m_original_data->GetByteSize()) &&
+ !memcmp(m_original_data->GetBytes(), data.GetDataStart(),
+ data.GetByteSize())) {
+ actually_write = false;
}
+ }
- if (ptr == LLDB_INVALID_ADDRESS)
- {
- dump_stream.Printf(" <could not be be found>\n");
- }
- else
- {
- DataBufferHeap data (m_temporary_allocation_size, 0);
-
- map.ReadMemory(data.GetBytes(), m_temporary_allocation, m_temporary_allocation_size, err);
-
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
+ Error set_error;
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, load_addr);
+ if (actually_write) {
+ valobj_sp->SetData(data, set_error);
- dump_stream.PutChar('\n');
- }
+ if (!set_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write the new contents of %s back into the variable",
+ m_variable_sp->GetName().AsCString());
+ return;
}
+ }
- log->PutCString(dump_stream.GetData());
- }
-
- void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override
- {
- if (m_temporary_allocation != LLDB_INVALID_ADDRESS)
- {
- Error free_error;
+ Error free_error;
- map.Free(m_temporary_allocation, free_error);
+ map.Free(m_temporary_allocation, free_error);
- m_temporary_allocation = LLDB_INVALID_ADDRESS;
- m_temporary_allocation_size = 0;
- }
+ if (!free_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't free the temporary region for %s: %s",
+ m_variable_sp->GetName().AsCString(), free_error.AsCString());
+ return;
+ }
+ m_original_data.reset();
+ m_temporary_allocation = LLDB_INVALID_ADDRESS;
+ m_temporary_allocation_size = 0;
}
+ }
-private:
- lldb::VariableSP m_variable_sp;
- bool m_is_reference;
- lldb::addr_t m_temporary_allocation;
- size_t m_temporary_allocation_size;
- lldb::DataBufferSP m_original_data;
-};
+ void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address,
+ Log *log) override {
+ StreamString dump_stream;
-uint32_t
-Materializer::AddVariable (lldb::VariableSP &variable_sp, Error &err)
-{
- EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
- iter->reset (new EntityVariable (variable_sp));
- uint32_t ret = AddStructMember(**iter);
- (*iter)->SetOffset(ret);
- return ret;
-}
+ const lldb::addr_t load_addr = process_address + m_offset;
+ dump_stream.Printf("0x%" PRIx64 ": EntityVariable\n", load_addr);
-class EntityResultVariable : public Materializer::Entity
-{
-public:
- EntityResultVariable (const CompilerType &type,
- bool is_program_reference,
- bool keep_in_memory,
- Materializer::PersistentVariableDelegate *delegate) :
- Entity(),
- m_type(type),
- m_is_program_reference(is_program_reference),
- m_keep_in_memory(keep_in_memory),
- m_temporary_allocation(LLDB_INVALID_ADDRESS),
- m_temporary_allocation_size(0),
- m_delegate(delegate)
- {
- // Hard-coding to maximum size of a pointer since all results are materialized by reference
- m_size = 8;
- m_alignment = 8;
- }
+ Error err;
- void Materialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- Error &err) override
- {
- if (!m_is_program_reference)
- {
- if (m_temporary_allocation != LLDB_INVALID_ADDRESS)
- {
- err.SetErrorString("Trying to create a temporary region for the result but one exists");
- return;
- }
-
- const lldb::addr_t load_addr = process_address + m_offset;
-
- ExecutionContextScope *exe_scope = map.GetBestExecutionContextScope();
-
- size_t byte_size = m_type.GetByteSize(exe_scope);
- size_t bit_align = m_type.GetTypeBitAlign();
- size_t byte_align = (bit_align + 7) / 8;
-
- if (!byte_align)
- byte_align = 1;
-
- Error alloc_error;
- const bool zero_memory = true;
-
- m_temporary_allocation = map.Malloc(byte_size,
- byte_align,
- lldb::ePermissionsReadable | lldb::ePermissionsWritable,
- IRMemoryMap::eAllocationPolicyMirror,
- zero_memory,
- alloc_error);
- m_temporary_allocation_size = byte_size;
-
- if (!alloc_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't allocate a temporary region for the result: %s", alloc_error.AsCString());
- return;
- }
-
- Error pointer_write_error;
-
- map.WritePointerToMemory(load_addr, m_temporary_allocation, pointer_write_error);
-
- if (!pointer_write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the address of the temporary region for the result: %s", pointer_write_error.AsCString());
- }
- }
- }
+ lldb::addr_t ptr = LLDB_INVALID_ADDRESS;
- void Dematerialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- lldb::addr_t frame_top,
- lldb::addr_t frame_bottom,
- Error &err) override
{
- err.Clear();
+ dump_stream.Printf("Pointer:\n");
- ExecutionContextScope *exe_scope = map.GetBestExecutionContextScope();
+ DataBufferHeap data(m_size, 0);
- if (!exe_scope)
- {
- err.SetErrorString("Couldn't dematerialize a result variable: invalid execution context scope");
- return;
- }
+ map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
- lldb::addr_t address;
- Error read_error;
- const lldb::addr_t load_addr = process_address + m_offset;
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
- map.ReadPointerFromMemory (&address, load_addr, read_error);
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, load_addr);
- if (!read_error.Success())
- {
- err.SetErrorString("Couldn't dematerialize a result variable: couldn't read its address");
- return;
- }
+ lldb::offset_t offset;
- lldb::TargetSP target_sp = exe_scope->CalculateTarget();
+ ptr = extractor.GetPointer(&offset);
- if (!target_sp)
- {
- err.SetErrorString("Couldn't dematerialize a result variable: no target");
- return;
- }
+ dump_stream.PutChar('\n');
+ }
+ }
- Error type_system_error;
- TypeSystem *type_system = target_sp->GetScratchTypeSystemForLanguage(&type_system_error, m_type.GetMinimumLanguage());
+ if (m_temporary_allocation == LLDB_INVALID_ADDRESS) {
+ dump_stream.Printf("Points to process memory:\n");
+ } else {
+ dump_stream.Printf("Temporary allocation:\n");
+ }
- if (!type_system)
- {
- err.SetErrorStringWithFormat("Couldn't dematerialize a result variable: couldn't get the corresponding type system: %s", type_system_error.AsCString());
- return;
- }
+ if (ptr == LLDB_INVALID_ADDRESS) {
+ dump_stream.Printf(" <could not be be found>\n");
+ } else {
+ DataBufferHeap data(m_temporary_allocation_size, 0);
- PersistentExpressionState *persistent_state = type_system->GetPersistentExpressionState();
+ map.ReadMemory(data.GetBytes(), m_temporary_allocation,
+ m_temporary_allocation_size, err);
- if (!persistent_state)
- {
- err.SetErrorString("Couldn't dematerialize a result variable: corresponding type system doesn't handle persistent variables");
- return;
- }
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
- ConstString name = m_delegate ? m_delegate->GetName() : persistent_state->GetNextPersistentVariableName();
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, load_addr);
- lldb::ExpressionVariableSP ret = persistent_state->CreatePersistentVariable(exe_scope,
- name,
- m_type,
- map.GetByteOrder(),
- map.GetAddressByteSize());
-
- if (!ret)
- {
- err.SetErrorStringWithFormat("couldn't dematerialize a result variable: failed to make persistent variable %s", name.AsCString());
- return;
- }
+ dump_stream.PutChar('\n');
+ }
+ }
- lldb::ProcessSP process_sp = map.GetBestExecutionContextScope()->CalculateProcess();
+ log->PutCString(dump_stream.GetData());
+ }
- if (m_delegate)
- {
- m_delegate->DidDematerialize(ret);
- }
+ void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override {
+ if (m_temporary_allocation != LLDB_INVALID_ADDRESS) {
+ Error free_error;
- bool can_persist = (m_is_program_reference && process_sp && process_sp->CanJIT() && !(address >= frame_bottom && address < frame_top));
+ map.Free(m_temporary_allocation, free_error);
- if (can_persist && m_keep_in_memory)
- {
- ret->m_live_sp = ValueObjectConstResult::Create(exe_scope,
- m_type,
- name,
- address,
- eAddressTypeLoad,
- map.GetAddressByteSize());
- }
+ m_temporary_allocation = LLDB_INVALID_ADDRESS;
+ m_temporary_allocation_size = 0;
+ }
+ }
- ret->ValueUpdated();
+private:
+ lldb::VariableSP m_variable_sp;
+ bool m_is_reference;
+ lldb::addr_t m_temporary_allocation;
+ size_t m_temporary_allocation_size;
+ lldb::DataBufferSP m_original_data;
+};
- const size_t pvar_byte_size = ret->GetByteSize();
- uint8_t *pvar_data = ret->GetValueBytes();
+uint32_t Materializer::AddVariable(lldb::VariableSP &variable_sp, Error &err) {
+ EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
+ iter->reset(new EntityVariable(variable_sp));
+ uint32_t ret = AddStructMember(**iter);
+ (*iter)->SetOffset(ret);
+ return ret;
+}
- map.ReadMemory(pvar_data, address, pvar_byte_size, read_error);
+class EntityResultVariable : public Materializer::Entity {
+public:
+ EntityResultVariable(const CompilerType &type, bool is_program_reference,
+ bool keep_in_memory,
+ Materializer::PersistentVariableDelegate *delegate)
+ : Entity(), m_type(type), m_is_program_reference(is_program_reference),
+ m_keep_in_memory(keep_in_memory),
+ m_temporary_allocation(LLDB_INVALID_ADDRESS),
+ m_temporary_allocation_size(0), m_delegate(delegate) {
+ // Hard-coding to maximum size of a pointer since all results are
+ // materialized by reference
+ m_size = 8;
+ m_alignment = 8;
+ }
+
+ void Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, Error &err) override {
+ if (!m_is_program_reference) {
+ if (m_temporary_allocation != LLDB_INVALID_ADDRESS) {
+ err.SetErrorString("Trying to create a temporary region for the result "
+ "but one exists");
+ return;
+ }
- if (!read_error.Success())
- {
- err.SetErrorString("Couldn't dematerialize a result variable: couldn't read its memory");
- return;
- }
+ const lldb::addr_t load_addr = process_address + m_offset;
- if (!can_persist || !m_keep_in_memory)
- {
- ret->m_flags |= ExpressionVariable::EVNeedsAllocation;
-
- if (m_temporary_allocation != LLDB_INVALID_ADDRESS)
- {
- Error free_error;
- map.Free(m_temporary_allocation, free_error);
- }
- }
- else
- {
- ret->m_flags |= ExpressionVariable::EVIsLLDBAllocated;
- }
+ ExecutionContextScope *exe_scope = map.GetBestExecutionContextScope();
- m_temporary_allocation = LLDB_INVALID_ADDRESS;
- m_temporary_allocation_size = 0;
- }
+ size_t byte_size = m_type.GetByteSize(exe_scope);
+ size_t bit_align = m_type.GetTypeBitAlign();
+ size_t byte_align = (bit_align + 7) / 8;
- void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address, Log *log) override
- {
- StreamString dump_stream;
+ if (!byte_align)
+ byte_align = 1;
- const lldb::addr_t load_addr = process_address + m_offset;
+ Error alloc_error;
+ const bool zero_memory = true;
- dump_stream.Printf("0x%" PRIx64 ": EntityResultVariable\n", load_addr);
+ m_temporary_allocation = map.Malloc(
+ byte_size, byte_align,
+ lldb::ePermissionsReadable | lldb::ePermissionsWritable,
+ IRMemoryMap::eAllocationPolicyMirror, zero_memory, alloc_error);
+ m_temporary_allocation_size = byte_size;
- Error err;
+ if (!alloc_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't allocate a temporary region for the result: %s",
+ alloc_error.AsCString());
+ return;
+ }
- lldb::addr_t ptr = LLDB_INVALID_ADDRESS;
+ Error pointer_write_error;
- {
- dump_stream.Printf("Pointer:\n");
+ map.WritePointerToMemory(load_addr, m_temporary_allocation,
+ pointer_write_error);
- DataBufferHeap data (m_size, 0);
+ if (!pointer_write_error.Success()) {
+ err.SetErrorStringWithFormat("couldn't write the address of the "
+ "temporary region for the result: %s",
+ pointer_write_error.AsCString());
+ }
+ }
+ }
- map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
+ void Dematerialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, lldb::addr_t frame_top,
+ lldb::addr_t frame_bottom, Error &err) override {
+ err.Clear();
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
+ ExecutionContextScope *exe_scope = map.GetBestExecutionContextScope();
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, load_addr);
+ if (!exe_scope) {
+ err.SetErrorString("Couldn't dematerialize a result variable: invalid "
+ "execution context scope");
+ return;
+ }
- lldb::offset_t offset;
+ lldb::addr_t address;
+ Error read_error;
+ const lldb::addr_t load_addr = process_address + m_offset;
- ptr = extractor.GetPointer(&offset);
+ map.ReadPointerFromMemory(&address, load_addr, read_error);
- dump_stream.PutChar('\n');
- }
- }
+ if (!read_error.Success()) {
+ err.SetErrorString("Couldn't dematerialize a result variable: couldn't "
+ "read its address");
+ return;
+ }
- if (m_temporary_allocation == LLDB_INVALID_ADDRESS)
- {
- dump_stream.Printf("Points to process memory:\n");
- }
- else
- {
- dump_stream.Printf("Temporary allocation:\n");
- }
+ lldb::TargetSP target_sp = exe_scope->CalculateTarget();
- if (ptr == LLDB_INVALID_ADDRESS)
- {
- dump_stream.Printf(" <could not be be found>\n");
- }
- else
- {
- DataBufferHeap data (m_temporary_allocation_size, 0);
-
- map.ReadMemory(data.GetBytes(), m_temporary_allocation, m_temporary_allocation_size, err);
-
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
+ if (!target_sp) {
+ err.SetErrorString("Couldn't dematerialize a result variable: no target");
+ return;
+ }
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, load_addr);
+ Error type_system_error;
+ TypeSystem *type_system = target_sp->GetScratchTypeSystemForLanguage(
+ &type_system_error, m_type.GetMinimumLanguage());
- dump_stream.PutChar('\n');
- }
- }
+ if (!type_system) {
+ err.SetErrorStringWithFormat("Couldn't dematerialize a result variable: "
+ "couldn't get the corresponding type "
+ "system: %s",
+ type_system_error.AsCString());
+ return;
+ }
- log->PutCString(dump_stream.GetData());
+ PersistentExpressionState *persistent_state =
+ type_system->GetPersistentExpressionState();
+
+ if (!persistent_state) {
+ err.SetErrorString("Couldn't dematerialize a result variable: "
+ "corresponding type system doesn't handle persistent "
+ "variables");
+ return;
}
- void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override
- {
- if (!m_keep_in_memory && m_temporary_allocation != LLDB_INVALID_ADDRESS)
- {
- Error free_error;
+ ConstString name = m_delegate
+ ? m_delegate->GetName()
+ : persistent_state->GetNextPersistentVariableName();
- map.Free(m_temporary_allocation, free_error);
- }
+ lldb::ExpressionVariableSP ret = persistent_state->CreatePersistentVariable(
+ exe_scope, name, m_type, map.GetByteOrder(), map.GetAddressByteSize());
- m_temporary_allocation = LLDB_INVALID_ADDRESS;
- m_temporary_allocation_size = 0;
+ if (!ret) {
+ err.SetErrorStringWithFormat("couldn't dematerialize a result variable: "
+ "failed to make persistent variable %s",
+ name.AsCString());
+ return;
}
-private:
- CompilerType m_type;
- bool m_is_program_reference;
- bool m_keep_in_memory;
-
- lldb::addr_t m_temporary_allocation;
- size_t m_temporary_allocation_size;
- Materializer::PersistentVariableDelegate *m_delegate;
-};
-
-uint32_t
-Materializer::AddResultVariable (const CompilerType &type,
- bool is_program_reference,
- bool keep_in_memory,
- PersistentVariableDelegate *delegate,
- Error &err)
-{
- EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
- iter->reset (new EntityResultVariable (type, is_program_reference, keep_in_memory, delegate));
- uint32_t ret = AddStructMember(**iter);
- (*iter)->SetOffset(ret);
- return ret;
-}
+ lldb::ProcessSP process_sp =
+ map.GetBestExecutionContextScope()->CalculateProcess();
-class EntitySymbol : public Materializer::Entity
-{
-public:
- EntitySymbol (const Symbol &symbol) :
- Entity(),
- m_symbol(symbol)
- {
- // Hard-coding to maximum size of a symbol
- m_size = 8;
- m_alignment = 8;
+ if (m_delegate) {
+ m_delegate->DidDematerialize(ret);
}
- void Materialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ bool can_persist =
+ (m_is_program_reference && process_sp && process_sp->CanJIT() &&
+ !(address >= frame_bottom && address < frame_top));
- const lldb::addr_t load_addr = process_address + m_offset;
+ if (can_persist && m_keep_in_memory) {
+ ret->m_live_sp = ValueObjectConstResult::Create(exe_scope, m_type, name,
+ address, eAddressTypeLoad,
+ map.GetAddressByteSize());
+ }
- if (log)
- {
- log->Printf("EntitySymbol::Materialize [address = 0x%" PRIx64 ", m_symbol = %s]",
- (uint64_t)load_addr,
- m_symbol.GetName().AsCString());
- }
+ ret->ValueUpdated();
- const Address sym_address = m_symbol.GetAddress();
+ const size_t pvar_byte_size = ret->GetByteSize();
+ uint8_t *pvar_data = ret->GetValueBytes();
- ExecutionContextScope *exe_scope = map.GetBestExecutionContextScope();
+ map.ReadMemory(pvar_data, address, pvar_byte_size, read_error);
- lldb::TargetSP target_sp;
+ if (!read_error.Success()) {
+ err.SetErrorString(
+ "Couldn't dematerialize a result variable: couldn't read its memory");
+ return;
+ }
- if (exe_scope)
- target_sp = map.GetBestExecutionContextScope()->CalculateTarget();
+ if (!can_persist || !m_keep_in_memory) {
+ ret->m_flags |= ExpressionVariable::EVNeedsAllocation;
- if (!target_sp)
- {
- err.SetErrorStringWithFormat("couldn't resolve symbol %s because there is no target", m_symbol.GetName().AsCString());
- return;
- }
+ if (m_temporary_allocation != LLDB_INVALID_ADDRESS) {
+ Error free_error;
+ map.Free(m_temporary_allocation, free_error);
+ }
+ } else {
+ ret->m_flags |= ExpressionVariable::EVIsLLDBAllocated;
+ }
- lldb::addr_t resolved_address = sym_address.GetLoadAddress(target_sp.get());
+ m_temporary_allocation = LLDB_INVALID_ADDRESS;
+ m_temporary_allocation_size = 0;
+ }
- if (resolved_address == LLDB_INVALID_ADDRESS)
- resolved_address = sym_address.GetFileAddress();
+ void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address,
+ Log *log) override {
+ StreamString dump_stream;
- Error pointer_write_error;
+ const lldb::addr_t load_addr = process_address + m_offset;
- map.WritePointerToMemory(load_addr, resolved_address, pointer_write_error);
+ dump_stream.Printf("0x%" PRIx64 ": EntityResultVariable\n", load_addr);
- if (!pointer_write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the address of symbol %s: %s", m_symbol.GetName().AsCString(), pointer_write_error.AsCString());
- return;
- }
- }
+ Error err;
- void Dematerialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- lldb::addr_t frame_top,
- lldb::addr_t frame_bottom,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ lldb::addr_t ptr = LLDB_INVALID_ADDRESS;
- const lldb::addr_t load_addr = process_address + m_offset;
+ {
+ dump_stream.Printf("Pointer:\n");
- if (log)
- {
- log->Printf("EntitySymbol::Dematerialize [address = 0x%" PRIx64 ", m_symbol = %s]",
- (uint64_t)load_addr,
- m_symbol.GetName().AsCString());
- }
+ DataBufferHeap data(m_size, 0);
- // no work needs to be done
- }
+ map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
- void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address, Log *log) override
- {
- StreamString dump_stream;
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
- Error err;
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, load_addr);
- const lldb::addr_t load_addr = process_address + m_offset;
+ lldb::offset_t offset;
- dump_stream.Printf("0x%" PRIx64 ": EntitySymbol (%s)\n", load_addr, m_symbol.GetName().AsCString());
+ ptr = extractor.GetPointer(&offset);
- {
- dump_stream.Printf("Pointer:\n");
+ dump_stream.PutChar('\n');
+ }
+ }
- DataBufferHeap data (m_size, 0);
+ if (m_temporary_allocation == LLDB_INVALID_ADDRESS) {
+ dump_stream.Printf("Points to process memory:\n");
+ } else {
+ dump_stream.Printf("Temporary allocation:\n");
+ }
- map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
+ if (ptr == LLDB_INVALID_ADDRESS) {
+ dump_stream.Printf(" <could not be be found>\n");
+ } else {
+ DataBufferHeap data(m_temporary_allocation_size, 0);
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
+ map.ReadMemory(data.GetBytes(), m_temporary_allocation,
+ m_temporary_allocation_size, err);
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, load_addr);
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
- dump_stream.PutChar('\n');
- }
- }
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, load_addr);
- log->PutCString(dump_stream.GetData());
+ dump_stream.PutChar('\n');
+ }
}
- void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override
- {
+ log->PutCString(dump_stream.GetData());
+ }
+
+ void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override {
+ if (!m_keep_in_memory && m_temporary_allocation != LLDB_INVALID_ADDRESS) {
+ Error free_error;
+
+ map.Free(m_temporary_allocation, free_error);
}
+ m_temporary_allocation = LLDB_INVALID_ADDRESS;
+ m_temporary_allocation_size = 0;
+ }
+
private:
- Symbol m_symbol;
+ CompilerType m_type;
+ bool m_is_program_reference;
+ bool m_keep_in_memory;
+
+ lldb::addr_t m_temporary_allocation;
+ size_t m_temporary_allocation_size;
+ Materializer::PersistentVariableDelegate *m_delegate;
};
-uint32_t
-Materializer::AddSymbol (const Symbol &symbol_sp, Error &err)
-{
- EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
- iter->reset (new EntitySymbol (symbol_sp));
- uint32_t ret = AddStructMember(**iter);
- (*iter)->SetOffset(ret);
- return ret;
+uint32_t Materializer::AddResultVariable(const CompilerType &type,
+ bool is_program_reference,
+ bool keep_in_memory,
+ PersistentVariableDelegate *delegate,
+ Error &err) {
+ EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
+ iter->reset(new EntityResultVariable(type, is_program_reference,
+ keep_in_memory, delegate));
+ uint32_t ret = AddStructMember(**iter);
+ (*iter)->SetOffset(ret);
+ return ret;
}
-class EntityRegister : public Materializer::Entity
-{
+class EntitySymbol : public Materializer::Entity {
public:
- EntityRegister (const RegisterInfo ®ister_info) :
- Entity(),
- m_register_info(register_info)
- {
- // Hard-coding alignment conservatively
- m_size = m_register_info.byte_size;
- m_alignment = m_register_info.byte_size;
- }
+ EntitySymbol(const Symbol &symbol) : Entity(), m_symbol(symbol) {
+ // Hard-coding to maximum size of a symbol
+ m_size = 8;
+ m_alignment = 8;
+ }
- void Materialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ void Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- const lldb::addr_t load_addr = process_address + m_offset;
+ const lldb::addr_t load_addr = process_address + m_offset;
- if (log)
- {
- log->Printf("EntityRegister::Materialize [address = 0x%" PRIx64 ", m_register_info = %s]",
- (uint64_t)load_addr,
- m_register_info.name);
- }
+ if (log) {
+ log->Printf("EntitySymbol::Materialize [address = 0x%" PRIx64
+ ", m_symbol = %s]",
+ (uint64_t)load_addr, m_symbol.GetName().AsCString());
+ }
- RegisterValue reg_value;
+ const Address sym_address = m_symbol.GetAddress();
- if (!frame_sp.get())
- {
- err.SetErrorStringWithFormat("couldn't materialize register %s without a stack frame", m_register_info.name);
- return;
- }
+ ExecutionContextScope *exe_scope = map.GetBestExecutionContextScope();
- lldb::RegisterContextSP reg_context_sp = frame_sp->GetRegisterContext();
+ lldb::TargetSP target_sp;
- if (!reg_context_sp->ReadRegister(&m_register_info, reg_value))
- {
- err.SetErrorStringWithFormat("couldn't read the value of register %s", m_register_info.name);
- return;
- }
+ if (exe_scope)
+ target_sp = map.GetBestExecutionContextScope()->CalculateTarget();
- DataExtractor register_data;
+ if (!target_sp) {
+ err.SetErrorStringWithFormat(
+ "couldn't resolve symbol %s because there is no target",
+ m_symbol.GetName().AsCString());
+ return;
+ }
- if (!reg_value.GetData(register_data))
- {
- err.SetErrorStringWithFormat("couldn't get the data for register %s", m_register_info.name);
- return;
- }
+ lldb::addr_t resolved_address = sym_address.GetLoadAddress(target_sp.get());
- if (register_data.GetByteSize() != m_register_info.byte_size)
- {
- err.SetErrorStringWithFormat("data for register %s had size %llu but we expected %llu", m_register_info.name, (unsigned long long)register_data.GetByteSize(), (unsigned long long)m_register_info.byte_size);
- return;
- }
+ if (resolved_address == LLDB_INVALID_ADDRESS)
+ resolved_address = sym_address.GetFileAddress();
- m_register_contents.reset(new DataBufferHeap(register_data.GetDataStart(), register_data.GetByteSize()));
+ Error pointer_write_error;
- Error write_error;
-
- map.WriteMemory(load_addr, register_data.GetDataStart(), register_data.GetByteSize(), write_error);
-
- if (!write_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't write the contents of register %s: %s", m_register_info.name, write_error.AsCString());
- return;
- }
+ map.WritePointerToMemory(load_addr, resolved_address, pointer_write_error);
+
+ if (!pointer_write_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write the address of symbol %s: %s",
+ m_symbol.GetName().AsCString(), pointer_write_error.AsCString());
+ return;
}
+ }
- void Dematerialize(lldb::StackFrameSP &frame_sp,
- IRMemoryMap &map,
- lldb::addr_t process_address,
- lldb::addr_t frame_top,
- lldb::addr_t frame_bottom,
- Error &err) override
- {
- Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
+ void Dematerialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, lldb::addr_t frame_top,
+ lldb::addr_t frame_bottom, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- const lldb::addr_t load_addr = process_address + m_offset;
+ const lldb::addr_t load_addr = process_address + m_offset;
- if (log)
- {
- log->Printf("EntityRegister::Dematerialize [address = 0x%" PRIx64 ", m_register_info = %s]",
- (uint64_t)load_addr,
- m_register_info.name);
- }
+ if (log) {
+ log->Printf("EntitySymbol::Dematerialize [address = 0x%" PRIx64
+ ", m_symbol = %s]",
+ (uint64_t)load_addr, m_symbol.GetName().AsCString());
+ }
- Error extract_error;
+ // no work needs to be done
+ }
- DataExtractor register_data;
+ void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address,
+ Log *log) override {
+ StreamString dump_stream;
- if (!frame_sp.get())
- {
- err.SetErrorStringWithFormat("couldn't dematerialize register %s without a stack frame", m_register_info.name);
- return;
- }
+ Error err;
- lldb::RegisterContextSP reg_context_sp = frame_sp->GetRegisterContext();
+ const lldb::addr_t load_addr = process_address + m_offset;
- map.GetMemoryData(register_data, load_addr, m_register_info.byte_size, extract_error);
+ dump_stream.Printf("0x%" PRIx64 ": EntitySymbol (%s)\n", load_addr,
+ m_symbol.GetName().AsCString());
- if (!extract_error.Success())
- {
- err.SetErrorStringWithFormat("couldn't get the data for register %s: %s", m_register_info.name, extract_error.AsCString());
- return;
- }
+ {
+ dump_stream.Printf("Pointer:\n");
- if (!memcmp(register_data.GetDataStart(), m_register_contents->GetBytes(), register_data.GetByteSize()))
- {
- // No write required, and in particular we avoid errors if the register wasn't writable
+ DataBufferHeap data(m_size, 0);
- m_register_contents.reset();
- return;
- }
+ map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
- m_register_contents.reset();
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
- RegisterValue register_value (const_cast<uint8_t*>(register_data.GetDataStart()), register_data.GetByteSize(), register_data.GetByteOrder());
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, load_addr);
- if (!reg_context_sp->WriteRegister(&m_register_info, register_value))
- {
- err.SetErrorStringWithFormat("couldn't write the value of register %s", m_register_info.name);
- return;
- }
+ dump_stream.PutChar('\n');
+ }
}
- void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address, Log *log) override
- {
- StreamString dump_stream;
+ log->PutCString(dump_stream.GetData());
+ }
- Error err;
+ void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override {}
- const lldb::addr_t load_addr = process_address + m_offset;
+private:
+ Symbol m_symbol;
+};
+uint32_t Materializer::AddSymbol(const Symbol &symbol_sp, Error &err) {
+ EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
+ iter->reset(new EntitySymbol(symbol_sp));
+ uint32_t ret = AddStructMember(**iter);
+ (*iter)->SetOffset(ret);
+ return ret;
+}
- dump_stream.Printf("0x%" PRIx64 ": EntityRegister (%s)\n", load_addr, m_register_info.name);
+class EntityRegister : public Materializer::Entity {
+public:
+ EntityRegister(const RegisterInfo ®ister_info)
+ : Entity(), m_register_info(register_info) {
+ // Hard-coding alignment conservatively
+ m_size = m_register_info.byte_size;
+ m_alignment = m_register_info.byte_size;
+ }
- {
- dump_stream.Printf("Value:\n");
+ void Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- DataBufferHeap data (m_size, 0);
+ const lldb::addr_t load_addr = process_address + m_offset;
- map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
+ if (log) {
+ log->Printf("EntityRegister::Materialize [address = 0x%" PRIx64
+ ", m_register_info = %s]",
+ (uint64_t)load_addr, m_register_info.name);
+ }
- if (!err.Success())
- {
- dump_stream.Printf(" <could not be read>\n");
- }
- else
- {
- DataExtractor extractor (data.GetBytes(), data.GetByteSize(), map.GetByteOrder(), map.GetAddressByteSize());
+ RegisterValue reg_value;
- extractor.DumpHexBytes(&dump_stream, data.GetBytes(), data.GetByteSize(), 16, load_addr);
+ if (!frame_sp.get()) {
+ err.SetErrorStringWithFormat(
+ "couldn't materialize register %s without a stack frame",
+ m_register_info.name);
+ return;
+ }
- dump_stream.PutChar('\n');
- }
- }
+ lldb::RegisterContextSP reg_context_sp = frame_sp->GetRegisterContext();
- log->PutCString(dump_stream.GetData());
+ if (!reg_context_sp->ReadRegister(&m_register_info, reg_value)) {
+ err.SetErrorStringWithFormat("couldn't read the value of register %s",
+ m_register_info.name);
+ return;
}
- void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override
- {
+ DataExtractor register_data;
+
+ if (!reg_value.GetData(register_data)) {
+ err.SetErrorStringWithFormat("couldn't get the data for register %s",
+ m_register_info.name);
+ return;
}
-private:
- RegisterInfo m_register_info;
- lldb::DataBufferSP m_register_contents;
-};
+ if (register_data.GetByteSize() != m_register_info.byte_size) {
+ err.SetErrorStringWithFormat(
+ "data for register %s had size %llu but we expected %llu",
+ m_register_info.name, (unsigned long long)register_data.GetByteSize(),
+ (unsigned long long)m_register_info.byte_size);
+ return;
+ }
-uint32_t
-Materializer::AddRegister (const RegisterInfo ®ister_info, Error &err)
-{
- EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
- iter->reset (new EntityRegister (register_info));
- uint32_t ret = AddStructMember(**iter);
- (*iter)->SetOffset(ret);
- return ret;
-}
+ m_register_contents.reset(new DataBufferHeap(register_data.GetDataStart(),
+ register_data.GetByteSize()));
-Materializer::Materializer () :
- m_dematerializer_wp(),
- m_current_offset(0),
- m_struct_alignment(8)
-{
-}
+ Error write_error;
-Materializer::~Materializer ()
-{
- DematerializerSP dematerializer_sp = m_dematerializer_wp.lock();
+ map.WriteMemory(load_addr, register_data.GetDataStart(),
+ register_data.GetByteSize(), write_error);
- if (dematerializer_sp)
- dematerializer_sp->Wipe();
-}
+ if (!write_error.Success()) {
+ err.SetErrorStringWithFormat(
+ "couldn't write the contents of register %s: %s",
+ m_register_info.name, write_error.AsCString());
+ return;
+ }
+ }
-Materializer::DematerializerSP
-Materializer::Materialize (lldb::StackFrameSP &frame_sp, IRMemoryMap &map, lldb::addr_t process_address, Error &error)
-{
- ExecutionContextScope *exe_scope = frame_sp.get();
+ void Dematerialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, lldb::addr_t frame_top,
+ lldb::addr_t frame_bottom, Error &err) override {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
- if (!exe_scope)
- exe_scope = map.GetBestExecutionContextScope();
+ const lldb::addr_t load_addr = process_address + m_offset;
- DematerializerSP dematerializer_sp = m_dematerializer_wp.lock();
+ if (log) {
+ log->Printf("EntityRegister::Dematerialize [address = 0x%" PRIx64
+ ", m_register_info = %s]",
+ (uint64_t)load_addr, m_register_info.name);
+ }
- if (dematerializer_sp)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't materialize: already materialized");
+ Error extract_error;
+
+ DataExtractor register_data;
+
+ if (!frame_sp.get()) {
+ err.SetErrorStringWithFormat(
+ "couldn't dematerialize register %s without a stack frame",
+ m_register_info.name);
+ return;
}
- DematerializerSP ret(new Dematerializer(*this, frame_sp, map, process_address));
+ lldb::RegisterContextSP reg_context_sp = frame_sp->GetRegisterContext();
- if (!exe_scope)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't materialize: target doesn't exist");
+ map.GetMemoryData(register_data, load_addr, m_register_info.byte_size,
+ extract_error);
+
+ if (!extract_error.Success()) {
+ err.SetErrorStringWithFormat("couldn't get the data for register %s: %s",
+ m_register_info.name,
+ extract_error.AsCString());
+ return;
}
- for (EntityUP &entity_up : m_entities)
- {
- entity_up->Materialize(frame_sp, map, process_address, error);
+ if (!memcmp(register_data.GetDataStart(), m_register_contents->GetBytes(),
+ register_data.GetByteSize())) {
+ // No write required, and in particular we avoid errors if the register
+ // wasn't writable
- if (!error.Success())
- return DematerializerSP();
+ m_register_contents.reset();
+ return;
}
- if (Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS))
- {
- log->Printf("Materializer::Materialize (frame_sp = %p, process_address = 0x%" PRIx64 ") materialized:",
- static_cast<void*>(frame_sp.get()), process_address);
- for (EntityUP &entity_up : m_entities)
- entity_up->DumpToLog(map, process_address, log);
+ m_register_contents.reset();
+
+ RegisterValue register_value(
+ const_cast<uint8_t *>(register_data.GetDataStart()),
+ register_data.GetByteSize(), register_data.GetByteOrder());
+
+ if (!reg_context_sp->WriteRegister(&m_register_info, register_value)) {
+ err.SetErrorStringWithFormat("couldn't write the value of register %s",
+ m_register_info.name);
+ return;
}
+ }
- m_dematerializer_wp = ret;
+ void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address,
+ Log *log) override {
+ StreamString dump_stream;
- return ret;
-}
+ Error err;
-void
-Materializer::Dematerializer::Dematerialize (Error &error,
- lldb::addr_t frame_bottom,
- lldb::addr_t frame_top)
-{
- lldb::StackFrameSP frame_sp;
-
- lldb::ThreadSP thread_sp = m_thread_wp.lock();
- if (thread_sp)
- frame_sp = thread_sp->GetFrameWithStackID(m_stack_id);
+ const lldb::addr_t load_addr = process_address + m_offset;
- ExecutionContextScope *exe_scope = m_map->GetBestExecutionContextScope();
+ dump_stream.Printf("0x%" PRIx64 ": EntityRegister (%s)\n", load_addr,
+ m_register_info.name);
- if (!IsValid())
{
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't dematerialize: invalid dematerializer");
- }
+ dump_stream.Printf("Value:\n");
- if (!exe_scope)
- {
- error.SetErrorToGenericError();
- error.SetErrorString("Couldn't dematerialize: target is gone");
- }
- else
- {
- if (Log *log =lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS))
- {
- log->Printf("Materializer::Dematerialize (frame_sp = %p, process_address = 0x%" PRIx64 ") about to dematerialize:",
- static_cast<void*>(frame_sp.get()), m_process_address);
- for (EntityUP &entity_up : m_materializer->m_entities)
- entity_up->DumpToLog(*m_map, m_process_address, log);
- }
+ DataBufferHeap data(m_size, 0);
- for (EntityUP &entity_up : m_materializer->m_entities)
- {
- entity_up->Dematerialize (frame_sp, *m_map, m_process_address, frame_top, frame_bottom, error);
+ map.ReadMemory(data.GetBytes(), load_addr, m_size, err);
- if (!error.Success())
- break;
- }
+ if (!err.Success()) {
+ dump_stream.Printf(" <could not be read>\n");
+ } else {
+ DataExtractor extractor(data.GetBytes(), data.GetByteSize(),
+ map.GetByteOrder(), map.GetAddressByteSize());
+
+ extractor.DumpHexBytes(&dump_stream, data.GetBytes(),
+ data.GetByteSize(), 16, load_addr);
+
+ dump_stream.PutChar('\n');
+ }
}
- Wipe();
+ log->PutCString(dump_stream.GetData());
+ }
+
+ void Wipe(IRMemoryMap &map, lldb::addr_t process_address) override {}
+
+private:
+ RegisterInfo m_register_info;
+ lldb::DataBufferSP m_register_contents;
+};
+
+uint32_t Materializer::AddRegister(const RegisterInfo ®ister_info,
+ Error &err) {
+ EntityVector::iterator iter = m_entities.insert(m_entities.end(), EntityUP());
+ iter->reset(new EntityRegister(register_info));
+ uint32_t ret = AddStructMember(**iter);
+ (*iter)->SetOffset(ret);
+ return ret;
}
-void
-Materializer::Dematerializer::Wipe ()
-{
- if (!IsValid())
- return;
+Materializer::Materializer()
+ : m_dematerializer_wp(), m_current_offset(0), m_struct_alignment(8) {}
- for (EntityUP &entity_up : m_materializer->m_entities)
- {
- entity_up->Wipe (*m_map, m_process_address);
+Materializer::~Materializer() {
+ DematerializerSP dematerializer_sp = m_dematerializer_wp.lock();
+
+ if (dematerializer_sp)
+ dematerializer_sp->Wipe();
+}
+
+Materializer::DematerializerSP
+Materializer::Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
+ lldb::addr_t process_address, Error &error) {
+ ExecutionContextScope *exe_scope = frame_sp.get();
+
+ if (!exe_scope)
+ exe_scope = map.GetBestExecutionContextScope();
+
+ DematerializerSP dematerializer_sp = m_dematerializer_wp.lock();
+
+ if (dematerializer_sp) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't materialize: already materialized");
+ }
+
+ DematerializerSP ret(
+ new Dematerializer(*this, frame_sp, map, process_address));
+
+ if (!exe_scope) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't materialize: target doesn't exist");
+ }
+
+ for (EntityUP &entity_up : m_entities) {
+ entity_up->Materialize(frame_sp, map, process_address, error);
+
+ if (!error.Success())
+ return DematerializerSP();
+ }
+
+ if (Log *log =
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)) {
+ log->Printf(
+ "Materializer::Materialize (frame_sp = %p, process_address = 0x%" PRIx64
+ ") materialized:",
+ static_cast<void *>(frame_sp.get()), process_address);
+ for (EntityUP &entity_up : m_entities)
+ entity_up->DumpToLog(map, process_address, log);
+ }
+
+ m_dematerializer_wp = ret;
+
+ return ret;
+}
+
+void Materializer::Dematerializer::Dematerialize(Error &error,
+ lldb::addr_t frame_bottom,
+ lldb::addr_t frame_top) {
+ lldb::StackFrameSP frame_sp;
+
+ lldb::ThreadSP thread_sp = m_thread_wp.lock();
+ if (thread_sp)
+ frame_sp = thread_sp->GetFrameWithStackID(m_stack_id);
+
+ ExecutionContextScope *exe_scope = m_map->GetBestExecutionContextScope();
+
+ if (!IsValid()) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't dematerialize: invalid dematerializer");
+ }
+
+ if (!exe_scope) {
+ error.SetErrorToGenericError();
+ error.SetErrorString("Couldn't dematerialize: target is gone");
+ } else {
+ if (Log *log =
+ lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS)) {
+ log->Printf("Materializer::Dematerialize (frame_sp = %p, process_address "
+ "= 0x%" PRIx64 ") about to dematerialize:",
+ static_cast<void *>(frame_sp.get()), m_process_address);
+ for (EntityUP &entity_up : m_materializer->m_entities)
+ entity_up->DumpToLog(*m_map, m_process_address, log);
+ }
+
+ for (EntityUP &entity_up : m_materializer->m_entities) {
+ entity_up->Dematerialize(frame_sp, *m_map, m_process_address, frame_top,
+ frame_bottom, error);
+
+ if (!error.Success())
+ break;
}
+ }
+
+ Wipe();
+}
- m_materializer = nullptr;
- m_map = nullptr;
- m_process_address = LLDB_INVALID_ADDRESS;
+void Materializer::Dematerializer::Wipe() {
+ if (!IsValid())
+ return;
+
+ for (EntityUP &entity_up : m_materializer->m_entities) {
+ entity_up->Wipe(*m_map, m_process_address);
+ }
+
+ m_materializer = nullptr;
+ m_map = nullptr;
+ m_process_address = LLDB_INVALID_ADDRESS;
}
-Materializer::PersistentVariableDelegate::~PersistentVariableDelegate() = default;
+Materializer::PersistentVariableDelegate::~PersistentVariableDelegate() =
+ default;
Modified: lldb/trunk/source/Expression/REPL.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/REPL.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/REPL.cpp (original)
+++ lldb/trunk/source/Expression/REPL.cpp Tue Sep 6 15:57:50 2016
@@ -11,11 +11,11 @@
// C++ Includes
// Other libraries and framework includes
// Project includes
+#include "lldb/Expression/REPL.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Expression/ExpressionVariable.h"
-#include "lldb/Expression/REPL.h"
#include "lldb/Expression/UserExpression.h"
#include "lldb/Host/HostInfo.h"
#include "lldb/Interpreter/CommandInterpreter.h"
@@ -26,625 +26,560 @@
using namespace lldb_private;
-REPL::REPL(LLVMCastKind kind, Target &target) :
- m_target(target),
- m_kind(kind)
-{
- // Make sure all option values have sane defaults
- Debugger &debugger = m_target.GetDebugger();
- auto exe_ctx = debugger.GetCommandInterpreter().GetExecutionContext();
- m_format_options.OptionParsingStarting(&exe_ctx);
- m_varobj_options.OptionParsingStarting(&exe_ctx);
- m_command_options.OptionParsingStarting(&exe_ctx);
-
- // Default certain settings for REPL regardless of the global settings.
- m_command_options.unwind_on_error = false;
- m_command_options.ignore_breakpoints = false;
- m_command_options.debug = false;
+REPL::REPL(LLVMCastKind kind, Target &target) : m_target(target), m_kind(kind) {
+ // Make sure all option values have sane defaults
+ Debugger &debugger = m_target.GetDebugger();
+ auto exe_ctx = debugger.GetCommandInterpreter().GetExecutionContext();
+ m_format_options.OptionParsingStarting(&exe_ctx);
+ m_varobj_options.OptionParsingStarting(&exe_ctx);
+ m_command_options.OptionParsingStarting(&exe_ctx);
+
+ // Default certain settings for REPL regardless of the global settings.
+ m_command_options.unwind_on_error = false;
+ m_command_options.ignore_breakpoints = false;
+ m_command_options.debug = false;
}
REPL::~REPL() = default;
-lldb::REPLSP
-REPL::Create(Error &err, lldb::LanguageType language, Debugger *debugger, Target *target, const char *repl_options)
-{
- uint32_t idx = 0;
- lldb::REPLSP ret;
-
- while (REPLCreateInstance create_instance = PluginManager::GetREPLCreateCallbackAtIndex(idx++))
- {
- ret = (*create_instance)(err, language, debugger, target, repl_options);
- if (ret)
- {
- break;
- }
+lldb::REPLSP REPL::Create(Error &err, lldb::LanguageType language,
+ Debugger *debugger, Target *target,
+ const char *repl_options) {
+ uint32_t idx = 0;
+ lldb::REPLSP ret;
+
+ while (REPLCreateInstance create_instance =
+ PluginManager::GetREPLCreateCallbackAtIndex(idx++)) {
+ ret = (*create_instance)(err, language, debugger, target, repl_options);
+ if (ret) {
+ break;
}
-
- return ret;
+ }
+
+ return ret;
}
-std::string
-REPL::GetSourcePath()
-{
- ConstString file_basename = GetSourceFileBasename();
-
- FileSpec tmpdir_file_spec;
- if (HostInfo::GetLLDBPath (lldb::ePathTypeLLDBTempSystemDir, tmpdir_file_spec))
- {
- tmpdir_file_spec.GetFilename().SetCString(file_basename.AsCString());
- m_repl_source_path = tmpdir_file_spec.GetPath();
- }
- else
- {
- tmpdir_file_spec = FileSpec("/tmp", false);
- tmpdir_file_spec.AppendPathComponent(file_basename.AsCString());
- }
-
- return tmpdir_file_spec.GetPath();
+std::string REPL::GetSourcePath() {
+ ConstString file_basename = GetSourceFileBasename();
+
+ FileSpec tmpdir_file_spec;
+ if (HostInfo::GetLLDBPath(lldb::ePathTypeLLDBTempSystemDir,
+ tmpdir_file_spec)) {
+ tmpdir_file_spec.GetFilename().SetCString(file_basename.AsCString());
+ m_repl_source_path = tmpdir_file_spec.GetPath();
+ } else {
+ tmpdir_file_spec = FileSpec("/tmp", false);
+ tmpdir_file_spec.AppendPathComponent(file_basename.AsCString());
+ }
+
+ return tmpdir_file_spec.GetPath();
}
-lldb::IOHandlerSP
-REPL::GetIOHandler()
-{
- if (!m_io_handler_sp)
- {
- Debugger &debugger = m_target.GetDebugger();
- m_io_handler_sp.reset (new IOHandlerEditline (debugger,
- IOHandler::Type::REPL,
- "lldb-repl", // Name of input reader for history
- "> ", // prompt
- ". ", // Continuation prompt
- true, // Multi-line
- true, // The REPL prompt is always colored
- 1, // Line number
- *this));
-
- // Don't exit if CTRL+C is pressed
- static_cast<IOHandlerEditline *>(m_io_handler_sp.get())->SetInterruptExits(false);
-
- if (m_io_handler_sp->GetIsInteractive() && m_io_handler_sp->GetIsRealTerminal())
- {
- m_indent_str.assign (debugger.GetTabSize(), ' ');
- m_enable_auto_indent = debugger.GetAutoIndent();
- }
- else
- {
- m_indent_str.clear();
- m_enable_auto_indent = false;
- }
-
+lldb::IOHandlerSP REPL::GetIOHandler() {
+ if (!m_io_handler_sp) {
+ Debugger &debugger = m_target.GetDebugger();
+ m_io_handler_sp.reset(
+ new IOHandlerEditline(debugger, IOHandler::Type::REPL,
+ "lldb-repl", // Name of input reader for history
+ "> ", // prompt
+ ". ", // Continuation prompt
+ true, // Multi-line
+ true, // The REPL prompt is always colored
+ 1, // Line number
+ *this));
+
+ // Don't exit if CTRL+C is pressed
+ static_cast<IOHandlerEditline *>(m_io_handler_sp.get())
+ ->SetInterruptExits(false);
+
+ if (m_io_handler_sp->GetIsInteractive() &&
+ m_io_handler_sp->GetIsRealTerminal()) {
+ m_indent_str.assign(debugger.GetTabSize(), ' ');
+ m_enable_auto_indent = debugger.GetAutoIndent();
+ } else {
+ m_indent_str.clear();
+ m_enable_auto_indent = false;
}
- return m_io_handler_sp;
+ }
+ return m_io_handler_sp;
}
-void
-REPL::IOHandlerActivated (IOHandler &io_handler)
-{
- lldb::ProcessSP process_sp = m_target.GetProcessSP();
- if (process_sp && process_sp->IsAlive())
- return;
- lldb::StreamFileSP error_sp(io_handler.GetErrorStreamFile());
- error_sp->Printf("REPL requires a running target process.\n");
- io_handler.SetIsDone(true);
-}
-
-bool
-REPL::IOHandlerInterrupt (IOHandler &io_handler)
-{
- return false;
-}
-
-void
-REPL::IOHandlerInputInterrupted (IOHandler &io_handler,
- std::string &line)
-{
-}
-
-const char *
-REPL::IOHandlerGetFixIndentationCharacters()
-{
- return (m_enable_auto_indent ? GetAutoIndentCharacters() : nullptr);
-}
-
-ConstString
-REPL::IOHandlerGetControlSequence (char ch)
-{
- if (ch == 'd')
- return ConstString(":quit\n");
- return ConstString();
-}
-
-const char *
-REPL::IOHandlerGetCommandPrefix ()
-{
- return ":";
-}
-
-const char *
-REPL::IOHandlerGetHelpPrologue ()
-{
- return "\nThe REPL (Read-Eval-Print-Loop) acts like an interpreter. "
- "Valid statements, expressions, and declarations are immediately compiled and executed.\n\n"
- "The complete set of LLDB debugging commands are also available as described below. Commands "
- "must be prefixed with a colon at the REPL prompt (:quit for example.) Typing just a colon "
- "followed by return will switch to the LLDB prompt.\n\n";
-}
-
-bool
-REPL::IOHandlerIsInputComplete (IOHandler &io_handler,
- StringList &lines)
-{
- // Check for meta command
- const size_t num_lines = lines.GetSize();
- if (num_lines == 1)
- {
- const char *first_line = lines.GetStringAtIndex(0);
- if (first_line[0] == ':')
- return true; // Meta command is a single line where that starts with ':'
- }
-
- // Check if REPL input is done
- std::string source_string (lines.CopyList());
- return SourceIsComplete(source_string);
-}
-
-int
-REPL::CalculateActualIndentation (const StringList &lines)
-{
- std::string last_line = lines[lines.GetSize() - 1];
-
- int actual_indent = 0;
- for (char &ch : last_line)
- {
- if (ch != ' ') break;
- ++actual_indent;
- }
-
- return actual_indent;
+void REPL::IOHandlerActivated(IOHandler &io_handler) {
+ lldb::ProcessSP process_sp = m_target.GetProcessSP();
+ if (process_sp && process_sp->IsAlive())
+ return;
+ lldb::StreamFileSP error_sp(io_handler.GetErrorStreamFile());
+ error_sp->Printf("REPL requires a running target process.\n");
+ io_handler.SetIsDone(true);
}
-int
-REPL::IOHandlerFixIndentation (IOHandler &io_handler,
- const StringList &lines,
- int cursor_position)
-{
- if (!m_enable_auto_indent) return 0;
-
- if (!lines.GetSize())
- {
- return 0;
- }
-
- int tab_size = io_handler.GetDebugger().GetTabSize();
+bool REPL::IOHandlerInterrupt(IOHandler &io_handler) { return false; }
- lldb::offset_t desired_indent = GetDesiredIndentation(lines,
- cursor_position,
- tab_size);
-
- int actual_indent = REPL::CalculateActualIndentation(lines);
-
- if (desired_indent == LLDB_INVALID_OFFSET)
- return 0;
-
- return (int)desired_indent - actual_indent;
-}
-
-void
-REPL::IOHandlerInputComplete (IOHandler &io_handler, std::string &code)
-{
- lldb::StreamFileSP output_sp(io_handler.GetOutputStreamFile());
- lldb::StreamFileSP error_sp(io_handler.GetErrorStreamFile());
- bool extra_line = false;
- bool did_quit = false;
-
- if (code.empty())
- {
- m_code.AppendString("");
- static_cast<IOHandlerEditline &>(io_handler).SetBaseLineNumber(m_code.GetSize()+1);
- }
- else
- {
- Debugger &debugger = m_target.GetDebugger();
- CommandInterpreter &ci = debugger.GetCommandInterpreter();
- extra_line = ci.GetSpaceReplPrompts();
-
- ExecutionContext exe_ctx (m_target.GetProcessSP()->GetThreadList().GetSelectedThread()->GetSelectedFrame().get());
-
- lldb::ProcessSP process_sp(exe_ctx.GetProcessSP());
-
- if (code[0] == ':')
- {
- // Meta command
- // Strip the ':'
- code.erase(0, 1);
- if (Args::StripSpaces (code))
- {
- // "lldb" was followed by arguments, so just execute the command dump the results
-
- // Turn off prompt on quit in case the user types ":quit"
- const bool saved_prompt_on_quit = ci.GetPromptOnQuit();
- if (saved_prompt_on_quit)
- ci.SetPromptOnQuit(false);
-
- // Execute the command
- CommandReturnObject result;
- result.SetImmediateOutputStream(output_sp);
- result.SetImmediateErrorStream(error_sp);
- ci.HandleCommand(code.c_str(), eLazyBoolNo, result);
-
- if (saved_prompt_on_quit)
- ci.SetPromptOnQuit(true);
-
- if (result.GetStatus() == lldb::eReturnStatusQuit)
- {
- did_quit = true;
- io_handler.SetIsDone(true);
- if (debugger.CheckTopIOHandlerTypes(IOHandler::Type::REPL, IOHandler::Type::CommandInterpreter))
- {
- // We typed "quit" or an alias to quit so we need to check if the
- // command interpreter is above us and tell it that it is done as well
- // so we don't drop back into the command interpreter if we have already
- // quit
- lldb::IOHandlerSP io_handler_sp (ci.GetIOHandler());
- if (io_handler_sp)
- io_handler_sp->SetIsDone(true);
- }
- }
- }
- else
- {
- // ":" was followed by no arguments, so push the LLDB command prompt
- if (debugger.CheckTopIOHandlerTypes(IOHandler::Type::REPL, IOHandler::Type::CommandInterpreter))
- {
- // If the user wants to get back to the command interpreter and the
- // command interpreter is what launched the REPL, then just let the
- // REPL exit and fall back to the command interpreter.
- io_handler.SetIsDone(true);
- }
- else
- {
- // The REPL wasn't launched the by the command interpreter, it is the
- // base IOHandler, so we need to get the command interpreter and
- lldb::IOHandlerSP io_handler_sp (ci.GetIOHandler());
- if (io_handler_sp)
- {
- io_handler_sp->SetIsDone(false);
- debugger.PushIOHandler(ci.GetIOHandler());
- }
- }
- }
+void REPL::IOHandlerInputInterrupted(IOHandler &io_handler, std::string &line) {
+}
+
+const char *REPL::IOHandlerGetFixIndentationCharacters() {
+ return (m_enable_auto_indent ? GetAutoIndentCharacters() : nullptr);
+}
+
+ConstString REPL::IOHandlerGetControlSequence(char ch) {
+ if (ch == 'd')
+ return ConstString(":quit\n");
+ return ConstString();
+}
+
+const char *REPL::IOHandlerGetCommandPrefix() { return ":"; }
+
+const char *REPL::IOHandlerGetHelpPrologue() {
+ return "\nThe REPL (Read-Eval-Print-Loop) acts like an interpreter. "
+ "Valid statements, expressions, and declarations are immediately "
+ "compiled and executed.\n\n"
+ "The complete set of LLDB debugging commands are also available as "
+ "described below. Commands "
+ "must be prefixed with a colon at the REPL prompt (:quit for "
+ "example.) Typing just a colon "
+ "followed by return will switch to the LLDB prompt.\n\n";
+}
+
+bool REPL::IOHandlerIsInputComplete(IOHandler &io_handler, StringList &lines) {
+ // Check for meta command
+ const size_t num_lines = lines.GetSize();
+ if (num_lines == 1) {
+ const char *first_line = lines.GetStringAtIndex(0);
+ if (first_line[0] == ':')
+ return true; // Meta command is a single line where that starts with ':'
+ }
+
+ // Check if REPL input is done
+ std::string source_string(lines.CopyList());
+ return SourceIsComplete(source_string);
+}
+
+int REPL::CalculateActualIndentation(const StringList &lines) {
+ std::string last_line = lines[lines.GetSize() - 1];
+
+ int actual_indent = 0;
+ for (char &ch : last_line) {
+ if (ch != ' ')
+ break;
+ ++actual_indent;
+ }
+
+ return actual_indent;
+}
+
+int REPL::IOHandlerFixIndentation(IOHandler &io_handler,
+ const StringList &lines,
+ int cursor_position) {
+ if (!m_enable_auto_indent)
+ return 0;
+
+ if (!lines.GetSize()) {
+ return 0;
+ }
+
+ int tab_size = io_handler.GetDebugger().GetTabSize();
+
+ lldb::offset_t desired_indent =
+ GetDesiredIndentation(lines, cursor_position, tab_size);
+
+ int actual_indent = REPL::CalculateActualIndentation(lines);
+
+ if (desired_indent == LLDB_INVALID_OFFSET)
+ return 0;
+
+ return (int)desired_indent - actual_indent;
+}
+
+void REPL::IOHandlerInputComplete(IOHandler &io_handler, std::string &code) {
+ lldb::StreamFileSP output_sp(io_handler.GetOutputStreamFile());
+ lldb::StreamFileSP error_sp(io_handler.GetErrorStreamFile());
+ bool extra_line = false;
+ bool did_quit = false;
+
+ if (code.empty()) {
+ m_code.AppendString("");
+ static_cast<IOHandlerEditline &>(io_handler)
+ .SetBaseLineNumber(m_code.GetSize() + 1);
+ } else {
+ Debugger &debugger = m_target.GetDebugger();
+ CommandInterpreter &ci = debugger.GetCommandInterpreter();
+ extra_line = ci.GetSpaceReplPrompts();
+
+ ExecutionContext exe_ctx(m_target.GetProcessSP()
+ ->GetThreadList()
+ .GetSelectedThread()
+ ->GetSelectedFrame()
+ .get());
+
+ lldb::ProcessSP process_sp(exe_ctx.GetProcessSP());
+
+ if (code[0] == ':') {
+ // Meta command
+ // Strip the ':'
+ code.erase(0, 1);
+ if (Args::StripSpaces(code)) {
+ // "lldb" was followed by arguments, so just execute the command dump
+ // the results
+
+ // Turn off prompt on quit in case the user types ":quit"
+ const bool saved_prompt_on_quit = ci.GetPromptOnQuit();
+ if (saved_prompt_on_quit)
+ ci.SetPromptOnQuit(false);
+
+ // Execute the command
+ CommandReturnObject result;
+ result.SetImmediateOutputStream(output_sp);
+ result.SetImmediateErrorStream(error_sp);
+ ci.HandleCommand(code.c_str(), eLazyBoolNo, result);
+
+ if (saved_prompt_on_quit)
+ ci.SetPromptOnQuit(true);
+
+ if (result.GetStatus() == lldb::eReturnStatusQuit) {
+ did_quit = true;
+ io_handler.SetIsDone(true);
+ if (debugger.CheckTopIOHandlerTypes(
+ IOHandler::Type::REPL, IOHandler::Type::CommandInterpreter)) {
+ // We typed "quit" or an alias to quit so we need to check if the
+ // command interpreter is above us and tell it that it is done as
+ // well
+ // so we don't drop back into the command interpreter if we have
+ // already
+ // quit
+ lldb::IOHandlerSP io_handler_sp(ci.GetIOHandler());
+ if (io_handler_sp)
+ io_handler_sp->SetIsDone(true);
+ }
}
- else
- {
- // Unwind any expression we might have been running in case our REPL
- // expression crashed and the user was looking around
- if (m_dedicated_repl_mode)
- {
- Thread *thread = exe_ctx.GetThreadPtr();
- if (thread && thread->UnwindInnermostExpression().Success())
- {
- thread->SetSelectedFrameByIndex(0, false);
- exe_ctx.SetFrameSP(thread->GetSelectedFrame());
- }
- }
-
- const bool colorize_err = error_sp->GetFile().GetIsTerminalWithColors();
-
- EvaluateExpressionOptions expr_options;
- expr_options.SetCoerceToId(m_varobj_options.use_objc);
- expr_options.SetUnwindOnError(m_command_options.unwind_on_error);
- expr_options.SetIgnoreBreakpoints (m_command_options.ignore_breakpoints);
- expr_options.SetKeepInMemory(true);
- expr_options.SetUseDynamic(m_varobj_options.use_dynamic);
- expr_options.SetTryAllThreads(m_command_options.try_all_threads);
- expr_options.SetGenerateDebugInfo(true);
- expr_options.SetREPLEnabled (true);
- expr_options.SetColorizeErrors(colorize_err);
- expr_options.SetPoundLine(m_repl_source_path.c_str(), m_code.GetSize() + 1);
- if (m_command_options.timeout > 0)
- expr_options.SetTimeoutUsec(m_command_options.timeout);
- else
- expr_options.SetTimeoutUsec(0);
-
- expr_options.SetLanguage(GetLanguage());
-
- PersistentExpressionState *persistent_state = m_target.GetPersistentExpressionStateForLanguage(GetLanguage());
-
- const size_t var_count_before = persistent_state->GetSize();
-
- const char *expr_prefix = nullptr;
- lldb::ValueObjectSP result_valobj_sp;
- Error error;
- lldb::ModuleSP jit_module_sp;
- lldb::ExpressionResults execution_results = UserExpression::Evaluate (exe_ctx,
- expr_options,
- code.c_str(),
- expr_prefix,
- result_valobj_sp,
- error,
- 0, // Line offset
- nullptr, // Fixed Expression
- &jit_module_sp);
-
- //CommandInterpreter &ci = debugger.GetCommandInterpreter();
-
- if (process_sp && process_sp->IsAlive())
- {
- bool add_to_code = true;
- bool handled = false;
- if (result_valobj_sp)
- {
- lldb::Format format = m_format_options.GetFormat();
-
- if (result_valobj_sp->GetError().Success())
- {
- handled |= PrintOneVariable(debugger, output_sp, result_valobj_sp);
- }
- else if (result_valobj_sp->GetError().GetError() == UserExpression::kNoResult)
- {
- if (format != lldb::eFormatVoid && debugger.GetNotifyVoid())
- {
- error_sp->PutCString("(void)\n");
- handled = true;
- }
- }
- }
-
- if (debugger.GetPrintDecls())
- {
- for (size_t vi = var_count_before, ve = persistent_state->GetSize();
- vi != ve;
- ++vi)
- {
- lldb::ExpressionVariableSP persistent_var_sp = persistent_state->GetVariableAtIndex(vi);
- lldb::ValueObjectSP valobj_sp = persistent_var_sp->GetValueObject();
-
- PrintOneVariable(debugger, output_sp, valobj_sp, persistent_var_sp.get());
- }
- }
-
- if (!handled)
- {
- bool useColors = error_sp->GetFile().GetIsTerminalWithColors();
- switch (execution_results)
- {
- case lldb::eExpressionSetupError:
- case lldb::eExpressionParseError:
- add_to_code = false;
- LLVM_FALLTHROUGH;
- case lldb::eExpressionDiscarded:
- error_sp->Printf("%s\n", error.AsCString());
- break;
-
- case lldb::eExpressionCompleted:
- break;
- case lldb::eExpressionInterrupted:
- if (useColors) {
- error_sp->Printf(ANSI_ESCAPE1(ANSI_FG_COLOR_RED));
- error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_BOLD));
- }
- error_sp->Printf("Execution interrupted. ");
- if (useColors) error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_NORMAL));
- error_sp->Printf("Enter code to recover and continue.\nEnter LLDB commands to investigate (type :help for assistance.)\n");
- break;
-
- case lldb::eExpressionHitBreakpoint:
- // Breakpoint was hit, drop into LLDB command interpreter
- if (useColors) {
- error_sp->Printf(ANSI_ESCAPE1(ANSI_FG_COLOR_RED));
- error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_BOLD));
- }
- output_sp->Printf("Execution stopped at breakpoint. ");
- if (useColors) error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_NORMAL));
- output_sp->Printf("Enter LLDB commands to investigate (type help for assistance.)\n");
- {
- lldb::IOHandlerSP io_handler_sp (ci.GetIOHandler());
- if (io_handler_sp)
- {
- io_handler_sp->SetIsDone(false);
- debugger.PushIOHandler(ci.GetIOHandler());
- }
- }
- break;
-
- case lldb::eExpressionTimedOut:
- error_sp->Printf("error: timeout\n");
- if (error.AsCString())
- error_sp->Printf("error: %s\n", error.AsCString());
- break;
- case lldb::eExpressionResultUnavailable:
- // Shoulnd't happen???
- error_sp->Printf("error: could not fetch result -- %s\n", error.AsCString());
- break;
- case lldb::eExpressionStoppedForDebug:
- // Shoulnd't happen???
- error_sp->Printf("error: stopped for debug -- %s\n", error.AsCString());
- break;
- }
- }
-
- if (add_to_code)
- {
- const uint32_t new_default_line = m_code.GetSize() + 1;
-
- m_code.SplitIntoLines(code);
-
- // Update our code on disk
- if (!m_repl_source_path.empty())
- {
- lldb_private::File file (m_repl_source_path.c_str(),
- File::eOpenOptionWrite | File::eOpenOptionTruncate | File::eOpenOptionCanCreate,
- lldb::eFilePermissionsFileDefault);
- std::string code (m_code.CopyList());
- code.append(1, '\n');
- size_t bytes_written = code.size();
- file.Write(code.c_str(), bytes_written);
- file.Close();
-
- // Now set the default file and line to the REPL source file
- m_target.GetSourceManager().SetDefaultFileAndLine(FileSpec(m_repl_source_path.c_str(), false), new_default_line);
- }
- static_cast<IOHandlerEditline &>(io_handler).SetBaseLineNumber(m_code.GetSize()+1);
- }
- if (extra_line)
- {
- fprintf(output_sp->GetFile().GetStream(), "\n");
- }
+ } else {
+ // ":" was followed by no arguments, so push the LLDB command prompt
+ if (debugger.CheckTopIOHandlerTypes(
+ IOHandler::Type::REPL, IOHandler::Type::CommandInterpreter)) {
+ // If the user wants to get back to the command interpreter and the
+ // command interpreter is what launched the REPL, then just let the
+ // REPL exit and fall back to the command interpreter.
+ io_handler.SetIsDone(true);
+ } else {
+ // The REPL wasn't launched the by the command interpreter, it is the
+ // base IOHandler, so we need to get the command interpreter and
+ lldb::IOHandlerSP io_handler_sp(ci.GetIOHandler());
+ if (io_handler_sp) {
+ io_handler_sp->SetIsDone(false);
+ debugger.PushIOHandler(ci.GetIOHandler());
+ }
+ }
+ }
+ } else {
+ // Unwind any expression we might have been running in case our REPL
+ // expression crashed and the user was looking around
+ if (m_dedicated_repl_mode) {
+ Thread *thread = exe_ctx.GetThreadPtr();
+ if (thread && thread->UnwindInnermostExpression().Success()) {
+ thread->SetSelectedFrameByIndex(0, false);
+ exe_ctx.SetFrameSP(thread->GetSelectedFrame());
+ }
+ }
+
+ const bool colorize_err = error_sp->GetFile().GetIsTerminalWithColors();
+
+ EvaluateExpressionOptions expr_options;
+ expr_options.SetCoerceToId(m_varobj_options.use_objc);
+ expr_options.SetUnwindOnError(m_command_options.unwind_on_error);
+ expr_options.SetIgnoreBreakpoints(m_command_options.ignore_breakpoints);
+ expr_options.SetKeepInMemory(true);
+ expr_options.SetUseDynamic(m_varobj_options.use_dynamic);
+ expr_options.SetTryAllThreads(m_command_options.try_all_threads);
+ expr_options.SetGenerateDebugInfo(true);
+ expr_options.SetREPLEnabled(true);
+ expr_options.SetColorizeErrors(colorize_err);
+ expr_options.SetPoundLine(m_repl_source_path.c_str(),
+ m_code.GetSize() + 1);
+ if (m_command_options.timeout > 0)
+ expr_options.SetTimeoutUsec(m_command_options.timeout);
+ else
+ expr_options.SetTimeoutUsec(0);
+
+ expr_options.SetLanguage(GetLanguage());
+
+ PersistentExpressionState *persistent_state =
+ m_target.GetPersistentExpressionStateForLanguage(GetLanguage());
+
+ const size_t var_count_before = persistent_state->GetSize();
+
+ const char *expr_prefix = nullptr;
+ lldb::ValueObjectSP result_valobj_sp;
+ Error error;
+ lldb::ModuleSP jit_module_sp;
+ lldb::ExpressionResults execution_results =
+ UserExpression::Evaluate(exe_ctx, expr_options, code.c_str(),
+ expr_prefix, result_valobj_sp, error,
+ 0, // Line offset
+ nullptr, // Fixed Expression
+ &jit_module_sp);
+
+ // CommandInterpreter &ci = debugger.GetCommandInterpreter();
+
+ if (process_sp && process_sp->IsAlive()) {
+ bool add_to_code = true;
+ bool handled = false;
+ if (result_valobj_sp) {
+ lldb::Format format = m_format_options.GetFormat();
+
+ if (result_valobj_sp->GetError().Success()) {
+ handled |= PrintOneVariable(debugger, output_sp, result_valobj_sp);
+ } else if (result_valobj_sp->GetError().GetError() ==
+ UserExpression::kNoResult) {
+ if (format != lldb::eFormatVoid && debugger.GetNotifyVoid()) {
+ error_sp->PutCString("(void)\n");
+ handled = true;
}
+ }
}
-
- // Don't complain about the REPL process going away if we are in the process of quitting.
- if (!did_quit && (!process_sp || !process_sp->IsAlive()))
- {
- error_sp->Printf("error: REPL process is no longer alive, exiting REPL\n");
- io_handler.SetIsDone(true);
+
+ if (debugger.GetPrintDecls()) {
+ for (size_t vi = var_count_before, ve = persistent_state->GetSize();
+ vi != ve; ++vi) {
+ lldb::ExpressionVariableSP persistent_var_sp =
+ persistent_state->GetVariableAtIndex(vi);
+ lldb::ValueObjectSP valobj_sp = persistent_var_sp->GetValueObject();
+
+ PrintOneVariable(debugger, output_sp, valobj_sp,
+ persistent_var_sp.get());
+ }
}
- }
-}
-int
-REPL::IOHandlerComplete (IOHandler &io_handler,
- const char *current_line,
- const char *cursor,
- const char *last_char,
- int skip_first_n_matches,
- int max_matches,
- StringList &matches)
-{
- matches.Clear();
-
- llvm::StringRef line (current_line, cursor - current_line);
-
- // Complete an LLDB command if the first character is a colon...
- if (!line.empty() && line[0] == ':')
- {
- Debugger &debugger = m_target.GetDebugger();
-
- // auto complete LLDB commands
- const char *lldb_current_line = line.substr(1).data();
- return debugger.GetCommandInterpreter().HandleCompletion (lldb_current_line,
- cursor,
- last_char,
- skip_first_n_matches,
- max_matches,
- matches);
- }
-
- // Strip spaces from the line and see if we had only spaces
- line = line.ltrim();
- if (line.empty())
- {
- // Only spaces on this line, so just indent
- matches.AppendString(m_indent_str);
- return 1;
- }
-
- std::string current_code;
- current_code.append(m_code.CopyList());
-
- IOHandlerEditline &editline = static_cast<IOHandlerEditline &>(io_handler);
- const StringList *current_lines = editline.GetCurrentLines();
- if (current_lines)
- {
- const uint32_t current_line_idx = editline.GetCurrentLineIndex();
-
- if (current_line_idx < current_lines->GetSize())
- {
- for (uint32_t i=0; i<current_line_idx; ++i)
+ if (!handled) {
+ bool useColors = error_sp->GetFile().GetIsTerminalWithColors();
+ switch (execution_results) {
+ case lldb::eExpressionSetupError:
+ case lldb::eExpressionParseError:
+ add_to_code = false;
+ LLVM_FALLTHROUGH;
+ case lldb::eExpressionDiscarded:
+ error_sp->Printf("%s\n", error.AsCString());
+ break;
+
+ case lldb::eExpressionCompleted:
+ break;
+ case lldb::eExpressionInterrupted:
+ if (useColors) {
+ error_sp->Printf(ANSI_ESCAPE1(ANSI_FG_COLOR_RED));
+ error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_BOLD));
+ }
+ error_sp->Printf("Execution interrupted. ");
+ if (useColors)
+ error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_NORMAL));
+ error_sp->Printf("Enter code to recover and continue.\nEnter LLDB "
+ "commands to investigate (type :help for "
+ "assistance.)\n");
+ break;
+
+ case lldb::eExpressionHitBreakpoint:
+ // Breakpoint was hit, drop into LLDB command interpreter
+ if (useColors) {
+ error_sp->Printf(ANSI_ESCAPE1(ANSI_FG_COLOR_RED));
+ error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_BOLD));
+ }
+ output_sp->Printf("Execution stopped at breakpoint. ");
+ if (useColors)
+ error_sp->Printf(ANSI_ESCAPE1(ANSI_CTRL_NORMAL));
+ output_sp->Printf("Enter LLDB commands to investigate (type help "
+ "for assistance.)\n");
{
- const char *line_cstr = current_lines->GetStringAtIndex(i);
- if (line_cstr)
- {
- current_code.append("\n");
- current_code.append (line_cstr);
- }
+ lldb::IOHandlerSP io_handler_sp(ci.GetIOHandler());
+ if (io_handler_sp) {
+ io_handler_sp->SetIsDone(false);
+ debugger.PushIOHandler(ci.GetIOHandler());
+ }
}
+ break;
+
+ case lldb::eExpressionTimedOut:
+ error_sp->Printf("error: timeout\n");
+ if (error.AsCString())
+ error_sp->Printf("error: %s\n", error.AsCString());
+ break;
+ case lldb::eExpressionResultUnavailable:
+ // Shoulnd't happen???
+ error_sp->Printf("error: could not fetch result -- %s\n",
+ error.AsCString());
+ break;
+ case lldb::eExpressionStoppedForDebug:
+ // Shoulnd't happen???
+ error_sp->Printf("error: stopped for debug -- %s\n",
+ error.AsCString());
+ break;
+ }
}
+
+ if (add_to_code) {
+ const uint32_t new_default_line = m_code.GetSize() + 1;
+
+ m_code.SplitIntoLines(code);
+
+ // Update our code on disk
+ if (!m_repl_source_path.empty()) {
+ lldb_private::File file(m_repl_source_path.c_str(),
+ File::eOpenOptionWrite |
+ File::eOpenOptionTruncate |
+ File::eOpenOptionCanCreate,
+ lldb::eFilePermissionsFileDefault);
+ std::string code(m_code.CopyList());
+ code.append(1, '\n');
+ size_t bytes_written = code.size();
+ file.Write(code.c_str(), bytes_written);
+ file.Close();
+
+ // Now set the default file and line to the REPL source file
+ m_target.GetSourceManager().SetDefaultFileAndLine(
+ FileSpec(m_repl_source_path.c_str(), false), new_default_line);
+ }
+ static_cast<IOHandlerEditline &>(io_handler)
+ .SetBaseLineNumber(m_code.GetSize() + 1);
+ }
+ if (extra_line) {
+ fprintf(output_sp->GetFile().GetStream(), "\n");
+ }
+ }
}
-
- if (cursor > current_line)
- {
- current_code.append("\n");
- current_code.append(current_line, cursor - current_line);
- }
-
- return CompleteCode(current_code, matches);
-}
-bool
-QuitCommandOverrideCallback(void *baton, const char **argv)
-{
- Target *target = (Target *)baton;
- lldb::ProcessSP process_sp (target->GetProcessSP());
- if (process_sp)
- {
- process_sp->Destroy(false);
- process_sp->GetTarget().GetDebugger().ClearIOHandlers();
+ // Don't complain about the REPL process going away if we are in the process
+ // of quitting.
+ if (!did_quit && (!process_sp || !process_sp->IsAlive())) {
+ error_sp->Printf(
+ "error: REPL process is no longer alive, exiting REPL\n");
+ io_handler.SetIsDone(true);
}
- return false;
+ }
}
-Error
-REPL::RunLoop ()
-{
- Error error;
-
- error = DoInitialization();
- m_repl_source_path = GetSourcePath();
-
- if (!error.Success())
- return error;
-
+int REPL::IOHandlerComplete(IOHandler &io_handler, const char *current_line,
+ const char *cursor, const char *last_char,
+ int skip_first_n_matches, int max_matches,
+ StringList &matches) {
+ matches.Clear();
+
+ llvm::StringRef line(current_line, cursor - current_line);
+
+ // Complete an LLDB command if the first character is a colon...
+ if (!line.empty() && line[0] == ':') {
Debugger &debugger = m_target.GetDebugger();
-
- lldb::IOHandlerSP io_handler_sp (GetIOHandler());
-
- FileSpec save_default_file;
- uint32_t save_default_line = 0;
-
- if (!m_repl_source_path.empty())
- {
- // Save the current default file and line
- m_target.GetSourceManager().GetDefaultFileAndLine(save_default_file, save_default_line);
- }
-
- debugger.PushIOHandler(io_handler_sp);
-
- // Check if we are in dedicated REPL mode where LLDB was start with the "--repl" option
- // from the command line. Currently we know this by checking if the debugger already
- // has a IOHandler thread.
- if (!debugger.HasIOHandlerThread())
- {
- // The debugger doesn't have an existing IOHandler thread, so this must be
- // dedicated REPL mode...
- m_dedicated_repl_mode = true;
- debugger.StartIOHandlerThread();
- std::string command_name_str ("quit");
- CommandObject *cmd_obj = debugger.GetCommandInterpreter().GetCommandObjectForCommand(command_name_str);
- if (cmd_obj)
- {
- assert(command_name_str.empty());
- cmd_obj->SetOverrideCallback (QuitCommandOverrideCallback, &m_target);
+
+ // auto complete LLDB commands
+ const char *lldb_current_line = line.substr(1).data();
+ return debugger.GetCommandInterpreter().HandleCompletion(
+ lldb_current_line, cursor, last_char, skip_first_n_matches, max_matches,
+ matches);
+ }
+
+ // Strip spaces from the line and see if we had only spaces
+ line = line.ltrim();
+ if (line.empty()) {
+ // Only spaces on this line, so just indent
+ matches.AppendString(m_indent_str);
+ return 1;
+ }
+
+ std::string current_code;
+ current_code.append(m_code.CopyList());
+
+ IOHandlerEditline &editline = static_cast<IOHandlerEditline &>(io_handler);
+ const StringList *current_lines = editline.GetCurrentLines();
+ if (current_lines) {
+ const uint32_t current_line_idx = editline.GetCurrentLineIndex();
+
+ if (current_line_idx < current_lines->GetSize()) {
+ for (uint32_t i = 0; i < current_line_idx; ++i) {
+ const char *line_cstr = current_lines->GetStringAtIndex(i);
+ if (line_cstr) {
+ current_code.append("\n");
+ current_code.append(line_cstr);
}
+ }
}
-
- // Wait for the REPL command interpreter to get popped
- io_handler_sp->WaitForPop();
-
- if (m_dedicated_repl_mode)
- {
- // If we were in dedicated REPL mode we would have started the
- // IOHandler thread, and we should kill our process
- lldb::ProcessSP process_sp = m_target.GetProcessSP();
- if (process_sp && process_sp->IsAlive())
- process_sp->Destroy(false);
-
- // Wait for the IO handler thread to exit (TODO: don't do this if the IO handler thread already exists...)
- debugger.JoinIOHandlerThread();
- }
-
- // Restore the default file and line
- if (save_default_file && save_default_line != 0)
- m_target.GetSourceManager().SetDefaultFileAndLine(save_default_file, save_default_line);
+ }
+
+ if (cursor > current_line) {
+ current_code.append("\n");
+ current_code.append(current_line, cursor - current_line);
+ }
+
+ return CompleteCode(current_code, matches);
+}
+
+bool QuitCommandOverrideCallback(void *baton, const char **argv) {
+ Target *target = (Target *)baton;
+ lldb::ProcessSP process_sp(target->GetProcessSP());
+ if (process_sp) {
+ process_sp->Destroy(false);
+ process_sp->GetTarget().GetDebugger().ClearIOHandlers();
+ }
+ return false;
+}
+
+Error REPL::RunLoop() {
+ Error error;
+
+ error = DoInitialization();
+ m_repl_source_path = GetSourcePath();
+
+ if (!error.Success())
return error;
+
+ Debugger &debugger = m_target.GetDebugger();
+
+ lldb::IOHandlerSP io_handler_sp(GetIOHandler());
+
+ FileSpec save_default_file;
+ uint32_t save_default_line = 0;
+
+ if (!m_repl_source_path.empty()) {
+ // Save the current default file and line
+ m_target.GetSourceManager().GetDefaultFileAndLine(save_default_file,
+ save_default_line);
+ }
+
+ debugger.PushIOHandler(io_handler_sp);
+
+ // Check if we are in dedicated REPL mode where LLDB was start with the
+ // "--repl" option
+ // from the command line. Currently we know this by checking if the debugger
+ // already
+ // has a IOHandler thread.
+ if (!debugger.HasIOHandlerThread()) {
+ // The debugger doesn't have an existing IOHandler thread, so this must be
+ // dedicated REPL mode...
+ m_dedicated_repl_mode = true;
+ debugger.StartIOHandlerThread();
+ std::string command_name_str("quit");
+ CommandObject *cmd_obj =
+ debugger.GetCommandInterpreter().GetCommandObjectForCommand(
+ command_name_str);
+ if (cmd_obj) {
+ assert(command_name_str.empty());
+ cmd_obj->SetOverrideCallback(QuitCommandOverrideCallback, &m_target);
+ }
+ }
+
+ // Wait for the REPL command interpreter to get popped
+ io_handler_sp->WaitForPop();
+
+ if (m_dedicated_repl_mode) {
+ // If we were in dedicated REPL mode we would have started the
+ // IOHandler thread, and we should kill our process
+ lldb::ProcessSP process_sp = m_target.GetProcessSP();
+ if (process_sp && process_sp->IsAlive())
+ process_sp->Destroy(false);
+
+ // Wait for the IO handler thread to exit (TODO: don't do this if the IO
+ // handler thread already exists...)
+ debugger.JoinIOHandlerThread();
+ }
+
+ // Restore the default file and line
+ if (save_default_file && save_default_line != 0)
+ m_target.GetSourceManager().SetDefaultFileAndLine(save_default_file,
+ save_default_line);
+ return error;
}
Modified: lldb/trunk/source/Expression/UserExpression.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/UserExpression.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/UserExpression.cpp (original)
+++ lldb/trunk/source/Expression/UserExpression.cpp Tue Sep 6 15:57:50 2016
@@ -9,12 +9,12 @@
#include <stdio.h>
#if HAVE_SYS_TYPES_H
-# include <sys/types.h>
+#include <sys/types.h>
#endif
#include <cstdlib>
-#include <string>
#include <map>
+#include <string>
#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h"
#include "lldb/Core/ConstString.h"
@@ -46,359 +46,330 @@
using namespace lldb_private;
-UserExpression::UserExpression (ExecutionContextScope &exe_scope,
- const char *expr,
- const char *expr_prefix,
- lldb::LanguageType language,
- ResultType desired_type,
- const EvaluateExpressionOptions &options) :
- Expression(exe_scope),
- m_expr_text(expr),
- m_expr_prefix(expr_prefix ? expr_prefix : ""),
- m_language(language),
- m_desired_type(desired_type),
- m_options (options)
-{
-}
-
-UserExpression::~UserExpression ()
-{
-}
-
-void
-UserExpression::InstallContext (ExecutionContext &exe_ctx)
-{
- m_jit_process_wp = exe_ctx.GetProcessSP();
-
- lldb::StackFrameSP frame_sp = exe_ctx.GetFrameSP();
+UserExpression::UserExpression(ExecutionContextScope &exe_scope,
+ const char *expr, const char *expr_prefix,
+ lldb::LanguageType language,
+ ResultType desired_type,
+ const EvaluateExpressionOptions &options)
+ : Expression(exe_scope), m_expr_text(expr),
+ m_expr_prefix(expr_prefix ? expr_prefix : ""), m_language(language),
+ m_desired_type(desired_type), m_options(options) {}
+
+UserExpression::~UserExpression() {}
- if (frame_sp)
- m_address = frame_sp->GetFrameCodeAddress();
-}
-
-bool
-UserExpression::LockAndCheckContext (ExecutionContext &exe_ctx,
- lldb::TargetSP &target_sp,
- lldb::ProcessSP &process_sp,
- lldb::StackFrameSP &frame_sp)
-{
- lldb::ProcessSP expected_process_sp = m_jit_process_wp.lock();
- process_sp = exe_ctx.GetProcessSP();
-
- if (process_sp != expected_process_sp)
- return false;
-
- process_sp = exe_ctx.GetProcessSP();
- target_sp = exe_ctx.GetTargetSP();
- frame_sp = exe_ctx.GetFrameSP();
-
- if (m_address.IsValid())
- {
- if (!frame_sp)
- return false;
- else
- return (0 == Address::CompareLoadAddress(m_address, frame_sp->GetFrameCodeAddress(), target_sp.get()));
- }
-
- return true;
-}
+void UserExpression::InstallContext(ExecutionContext &exe_ctx) {
+ m_jit_process_wp = exe_ctx.GetProcessSP();
-bool
-UserExpression::MatchesContext (ExecutionContext &exe_ctx)
-{
- lldb::TargetSP target_sp;
- lldb::ProcessSP process_sp;
- lldb::StackFrameSP frame_sp;
+ lldb::StackFrameSP frame_sp = exe_ctx.GetFrameSP();
- return LockAndCheckContext(exe_ctx, target_sp, process_sp, frame_sp);
+ if (frame_sp)
+ m_address = frame_sp->GetFrameCodeAddress();
}
-lldb::addr_t
-UserExpression::GetObjectPointer (lldb::StackFrameSP frame_sp,
- ConstString &object_name,
- Error &err)
-{
- err.Clear();
+bool UserExpression::LockAndCheckContext(ExecutionContext &exe_ctx,
+ lldb::TargetSP &target_sp,
+ lldb::ProcessSP &process_sp,
+ lldb::StackFrameSP &frame_sp) {
+ lldb::ProcessSP expected_process_sp = m_jit_process_wp.lock();
+ process_sp = exe_ctx.GetProcessSP();
+
+ if (process_sp != expected_process_sp)
+ return false;
+
+ process_sp = exe_ctx.GetProcessSP();
+ target_sp = exe_ctx.GetTargetSP();
+ frame_sp = exe_ctx.GetFrameSP();
+ if (m_address.IsValid()) {
if (!frame_sp)
- {
- err.SetErrorStringWithFormat("Couldn't load '%s' because the context is incomplete", object_name.AsCString());
- return LLDB_INVALID_ADDRESS;
- }
-
- lldb::VariableSP var_sp;
- lldb::ValueObjectSP valobj_sp;
-
- valobj_sp = frame_sp->GetValueForVariableExpressionPath(object_name.AsCString(),
- lldb::eNoDynamicValues,
- StackFrame::eExpressionPathOptionCheckPtrVsMember |
- StackFrame::eExpressionPathOptionsNoFragileObjcIvar |
- StackFrame::eExpressionPathOptionsNoSyntheticChildren |
- StackFrame::eExpressionPathOptionsNoSyntheticArrayRange,
- var_sp,
- err);
-
- if (!err.Success() || !valobj_sp.get())
- return LLDB_INVALID_ADDRESS;
-
- lldb::addr_t ret = valobj_sp->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
-
- if (ret == LLDB_INVALID_ADDRESS)
- {
- err.SetErrorStringWithFormat("Couldn't load '%s' because its value couldn't be evaluated", object_name.AsCString());
- return LLDB_INVALID_ADDRESS;
- }
+ return false;
+ else
+ return (0 == Address::CompareLoadAddress(m_address,
+ frame_sp->GetFrameCodeAddress(),
+ target_sp.get()));
+ }
- return ret;
+ return true;
}
-lldb::ExpressionResults
-UserExpression::Evaluate (ExecutionContext &exe_ctx,
- const EvaluateExpressionOptions& options,
- const char *expr_cstr,
- const char *expr_prefix,
- lldb::ValueObjectSP &result_valobj_sp,
- Error &error,
- uint32_t line_offset,
- std::string *fixed_expression,
- lldb::ModuleSP *jit_module_sp_ptr)
-{
- Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
-
- lldb_private::ExecutionPolicy execution_policy = options.GetExecutionPolicy();
- lldb::LanguageType language = options.GetLanguage();
- const ResultType desired_type = options.DoesCoerceToId() ? UserExpression::eResultTypeId : UserExpression::eResultTypeAny;
- lldb::ExpressionResults execution_results = lldb::eExpressionSetupError;
-
- Target *target = exe_ctx.GetTargetPtr();
- if (!target)
- {
- if (log)
- log->Printf("== [UserExpression::Evaluate] Passed a NULL target, can't run expressions.");
- return lldb::eExpressionSetupError;
- }
-
- Process *process = exe_ctx.GetProcessPtr();
-
- if (process == NULL || process->GetState() != lldb::eStateStopped)
- {
- if (execution_policy == eExecutionPolicyAlways)
- {
- if (log)
- log->Printf("== [UserExpression::Evaluate] Expression may not run, but is not constant ==");
+bool UserExpression::MatchesContext(ExecutionContext &exe_ctx) {
+ lldb::TargetSP target_sp;
+ lldb::ProcessSP process_sp;
+ lldb::StackFrameSP frame_sp;
- error.SetErrorString ("expression needed to run but couldn't");
-
- return execution_results;
- }
- }
+ return LockAndCheckContext(exe_ctx, target_sp, process_sp, frame_sp);
+}
- if (process == NULL || !process->CanJIT())
- execution_policy = eExecutionPolicyNever;
-
- // We need to set the expression execution thread here, turns out parse can call functions in the process of
- // looking up symbols, which will escape the context set by exe_ctx passed to Execute.
- lldb::ThreadSP thread_sp = exe_ctx.GetThreadSP();
- ThreadList::ExpressionExecutionThreadPusher execution_thread_pusher(thread_sp);
-
- const char *full_prefix = NULL;
- const char *option_prefix = options.GetPrefix();
- std::string full_prefix_storage;
- if (expr_prefix && option_prefix)
- {
- full_prefix_storage.assign(expr_prefix);
- full_prefix_storage.append(option_prefix);
- if (!full_prefix_storage.empty())
- full_prefix = full_prefix_storage.c_str();
- }
- else if (expr_prefix)
- full_prefix = expr_prefix;
- else
- full_prefix = option_prefix;
+lldb::addr_t UserExpression::GetObjectPointer(lldb::StackFrameSP frame_sp,
+ ConstString &object_name,
+ Error &err) {
+ err.Clear();
+
+ if (!frame_sp) {
+ err.SetErrorStringWithFormat(
+ "Couldn't load '%s' because the context is incomplete",
+ object_name.AsCString());
+ return LLDB_INVALID_ADDRESS;
+ }
+
+ lldb::VariableSP var_sp;
+ lldb::ValueObjectSP valobj_sp;
+
+ valobj_sp = frame_sp->GetValueForVariableExpressionPath(
+ object_name.AsCString(), lldb::eNoDynamicValues,
+ StackFrame::eExpressionPathOptionCheckPtrVsMember |
+ StackFrame::eExpressionPathOptionsNoFragileObjcIvar |
+ StackFrame::eExpressionPathOptionsNoSyntheticChildren |
+ StackFrame::eExpressionPathOptionsNoSyntheticArrayRange,
+ var_sp, err);
+
+ if (!err.Success() || !valobj_sp.get())
+ return LLDB_INVALID_ADDRESS;
+
+ lldb::addr_t ret = valobj_sp->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+
+ if (ret == LLDB_INVALID_ADDRESS) {
+ err.SetErrorStringWithFormat(
+ "Couldn't load '%s' because its value couldn't be evaluated",
+ object_name.AsCString());
+ return LLDB_INVALID_ADDRESS;
+ }
- // If the language was not specified in the expression command,
- // set it to the language in the target's properties if
- // specified, else default to the langage for the frame.
- if (language == lldb::eLanguageTypeUnknown)
- {
- if (target->GetLanguage() != lldb::eLanguageTypeUnknown)
- language = target->GetLanguage();
- else if (StackFrame *frame = exe_ctx.GetFramePtr())
- language = frame->GetLanguage();
- }
+ return ret;
+}
- lldb::UserExpressionSP user_expression_sp(target->GetUserExpressionForLanguage (expr_cstr,
- full_prefix,
- language,
- desired_type,
- options,
- error));
- if (error.Fail())
- {
- if (log)
- log->Printf ("== [UserExpression::Evaluate] Getting expression: %s ==", error.AsCString());
- return lldb::eExpressionSetupError;
- }
+lldb::ExpressionResults UserExpression::Evaluate(
+ ExecutionContext &exe_ctx, const EvaluateExpressionOptions &options,
+ const char *expr_cstr, const char *expr_prefix,
+ lldb::ValueObjectSP &result_valobj_sp, Error &error, uint32_t line_offset,
+ std::string *fixed_expression, lldb::ModuleSP *jit_module_sp_ptr) {
+ Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS |
+ LIBLLDB_LOG_STEP));
+
+ lldb_private::ExecutionPolicy execution_policy = options.GetExecutionPolicy();
+ lldb::LanguageType language = options.GetLanguage();
+ const ResultType desired_type = options.DoesCoerceToId()
+ ? UserExpression::eResultTypeId
+ : UserExpression::eResultTypeAny;
+ lldb::ExpressionResults execution_results = lldb::eExpressionSetupError;
+ Target *target = exe_ctx.GetTargetPtr();
+ if (!target) {
if (log)
- log->Printf("== [UserExpression::Evaluate] Parsing expression %s ==", expr_cstr);
+ log->Printf("== [UserExpression::Evaluate] Passed a NULL target, can't "
+ "run expressions.");
+ return lldb::eExpressionSetupError;
+ }
+
+ Process *process = exe_ctx.GetProcessPtr();
+
+ if (process == NULL || process->GetState() != lldb::eStateStopped) {
+ if (execution_policy == eExecutionPolicyAlways) {
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Expression may not run, but "
+ "is not constant ==");
+
+ error.SetErrorString("expression needed to run but couldn't");
+
+ return execution_results;
+ }
+ }
+
+ if (process == NULL || !process->CanJIT())
+ execution_policy = eExecutionPolicyNever;
+
+ // We need to set the expression execution thread here, turns out parse can
+ // call functions in the process of
+ // looking up symbols, which will escape the context set by exe_ctx passed to
+ // Execute.
+ lldb::ThreadSP thread_sp = exe_ctx.GetThreadSP();
+ ThreadList::ExpressionExecutionThreadPusher execution_thread_pusher(
+ thread_sp);
+
+ const char *full_prefix = NULL;
+ const char *option_prefix = options.GetPrefix();
+ std::string full_prefix_storage;
+ if (expr_prefix && option_prefix) {
+ full_prefix_storage.assign(expr_prefix);
+ full_prefix_storage.append(option_prefix);
+ if (!full_prefix_storage.empty())
+ full_prefix = full_prefix_storage.c_str();
+ } else if (expr_prefix)
+ full_prefix = expr_prefix;
+ else
+ full_prefix = option_prefix;
+
+ // If the language was not specified in the expression command,
+ // set it to the language in the target's properties if
+ // specified, else default to the langage for the frame.
+ if (language == lldb::eLanguageTypeUnknown) {
+ if (target->GetLanguage() != lldb::eLanguageTypeUnknown)
+ language = target->GetLanguage();
+ else if (StackFrame *frame = exe_ctx.GetFramePtr())
+ language = frame->GetLanguage();
+ }
+
+ lldb::UserExpressionSP user_expression_sp(
+ target->GetUserExpressionForLanguage(expr_cstr, full_prefix, language,
+ desired_type, options, error));
+ if (error.Fail()) {
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Getting expression: %s ==",
+ error.AsCString());
+ return lldb::eExpressionSetupError;
+ }
+
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Parsing expression %s ==",
+ expr_cstr);
+
+ const bool keep_expression_in_memory = true;
+ const bool generate_debug_info = options.GetGenerateDebugInfo();
+
+ if (options.InvokeCancelCallback(lldb::eExpressionEvaluationParse)) {
+ error.SetErrorString("expression interrupted by callback before parse");
+ result_valobj_sp = ValueObjectConstResult::Create(
+ exe_ctx.GetBestExecutionContextScope(), error);
+ return lldb::eExpressionInterrupted;
+ }
+
+ DiagnosticManager diagnostic_manager;
+
+ bool parse_success =
+ user_expression_sp->Parse(diagnostic_manager, exe_ctx, execution_policy,
+ keep_expression_in_memory, generate_debug_info);
+
+ // Calculate the fixed expression always, since we need it for errors.
+ std::string tmp_fixed_expression;
+ if (fixed_expression == nullptr)
+ fixed_expression = &tmp_fixed_expression;
+
+ const char *fixed_text = user_expression_sp->GetFixedText();
+ if (fixed_text != nullptr)
+ fixed_expression->append(fixed_text);
+
+ // If there is a fixed expression, try to parse it:
+ if (!parse_success) {
+ execution_results = lldb::eExpressionParseError;
+ if (fixed_expression && !fixed_expression->empty() &&
+ options.GetAutoApplyFixIts()) {
+ lldb::UserExpressionSP fixed_expression_sp(
+ target->GetUserExpressionForLanguage(fixed_expression->c_str(),
+ full_prefix, language,
+ desired_type, options, error));
+ DiagnosticManager fixed_diagnostic_manager;
+ parse_success = fixed_expression_sp->Parse(
+ fixed_diagnostic_manager, exe_ctx, execution_policy,
+ keep_expression_in_memory, generate_debug_info);
+ if (parse_success) {
+ diagnostic_manager.Clear();
+ user_expression_sp = fixed_expression_sp;
+ } else {
+ // If the fixed expression failed to parse, don't tell the user about,
+ // that won't help.
+ fixed_expression->clear();
+ }
+ }
+
+ if (!parse_success) {
+ if (!fixed_expression->empty() && target->GetEnableNotifyAboutFixIts()) {
+ error.SetExpressionErrorWithFormat(
+ execution_results,
+ "expression failed to parse, fixed expression suggested:\n %s",
+ fixed_expression->c_str());
+ } else {
+ if (!diagnostic_manager.Diagnostics().size())
+ error.SetExpressionError(execution_results,
+ "expression failed to parse, unknown error");
+ else
+ error.SetExpressionError(execution_results,
+ diagnostic_manager.GetString().c_str());
+ }
+ }
+ }
+
+ if (parse_success) {
+ // If a pointer to a lldb::ModuleSP was passed in, return the JIT'ed module
+ // if one was created
+ if (jit_module_sp_ptr)
+ *jit_module_sp_ptr = user_expression_sp->GetJITModule();
+
+ lldb::ExpressionVariableSP expr_result;
+
+ if (execution_policy == eExecutionPolicyNever &&
+ !user_expression_sp->CanInterpret()) {
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Expression may not run, but "
+ "is not constant ==");
+
+ if (!diagnostic_manager.Diagnostics().size())
+ error.SetExpressionError(lldb::eExpressionSetupError,
+ "expression needed to run but couldn't");
+ } else if (execution_policy == eExecutionPolicyTopLevel) {
+ error.SetError(UserExpression::kNoResult, lldb::eErrorTypeGeneric);
+ return lldb::eExpressionCompleted;
+ } else {
+ if (options.InvokeCancelCallback(lldb::eExpressionEvaluationExecution)) {
+ error.SetExpressionError(
+ lldb::eExpressionInterrupted,
+ "expression interrupted by callback before execution");
+ result_valobj_sp = ValueObjectConstResult::Create(
+ exe_ctx.GetBestExecutionContextScope(), error);
+ return lldb::eExpressionInterrupted;
+ }
- const bool keep_expression_in_memory = true;
- const bool generate_debug_info = options.GetGenerateDebugInfo();
+ diagnostic_manager.Clear();
- if (options.InvokeCancelCallback (lldb::eExpressionEvaluationParse))
- {
- error.SetErrorString ("expression interrupted by callback before parse");
- result_valobj_sp = ValueObjectConstResult::Create(exe_ctx.GetBestExecutionContextScope(), error);
- return lldb::eExpressionInterrupted;
- }
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Executing expression ==");
- DiagnosticManager diagnostic_manager;
+ execution_results =
+ user_expression_sp->Execute(diagnostic_manager, exe_ctx, options,
+ user_expression_sp, expr_result);
- bool parse_success = user_expression_sp->Parse(diagnostic_manager,
- exe_ctx,
- execution_policy,
- keep_expression_in_memory,
- generate_debug_info);
-
- // Calculate the fixed expression always, since we need it for errors.
- std::string tmp_fixed_expression;
- if (fixed_expression == nullptr)
- fixed_expression = &tmp_fixed_expression;
-
- const char *fixed_text = user_expression_sp->GetFixedText();
- if (fixed_text != nullptr)
- fixed_expression->append(fixed_text);
-
- // If there is a fixed expression, try to parse it:
- if (!parse_success)
- {
- execution_results = lldb::eExpressionParseError;
- if (fixed_expression && !fixed_expression->empty() && options.GetAutoApplyFixIts())
- {
- lldb::UserExpressionSP fixed_expression_sp(target->GetUserExpressionForLanguage (fixed_expression->c_str(),
- full_prefix,
- language,
- desired_type,
- options,
- error));
- DiagnosticManager fixed_diagnostic_manager;
- parse_success = fixed_expression_sp->Parse(fixed_diagnostic_manager,
- exe_ctx,
- execution_policy,
- keep_expression_in_memory,
- generate_debug_info);
- if (parse_success)
- {
- diagnostic_manager.Clear();
- user_expression_sp = fixed_expression_sp;
- }
- else
- {
- // If the fixed expression failed to parse, don't tell the user about, that won't help.
- fixed_expression->clear();
- }
- }
-
- if (!parse_success)
- {
- if (!fixed_expression->empty() && target->GetEnableNotifyAboutFixIts())
- {
- error.SetExpressionErrorWithFormat(execution_results, "expression failed to parse, fixed expression suggested:\n %s",
- fixed_expression->c_str());
- }
- else
- {
- if (!diagnostic_manager.Diagnostics().size())
- error.SetExpressionError(execution_results, "expression failed to parse, unknown error");
- else
- error.SetExpressionError(execution_results, diagnostic_manager.GetString().c_str());
- }
- }
- }
-
- if (parse_success)
- {
- // If a pointer to a lldb::ModuleSP was passed in, return the JIT'ed module if one was created
- if (jit_module_sp_ptr)
- *jit_module_sp_ptr = user_expression_sp->GetJITModule();
-
- lldb::ExpressionVariableSP expr_result;
-
- if (execution_policy == eExecutionPolicyNever &&
- !user_expression_sp->CanInterpret())
- {
- if (log)
- log->Printf("== [UserExpression::Evaluate] Expression may not run, but is not constant ==");
+ if (execution_results != lldb::eExpressionCompleted) {
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Execution completed "
+ "abnormally ==");
- if (!diagnostic_manager.Diagnostics().size())
- error.SetExpressionError(lldb::eExpressionSetupError, "expression needed to run but couldn't");
- }
- else if (execution_policy == eExecutionPolicyTopLevel)
- {
- error.SetError(UserExpression::kNoResult, lldb::eErrorTypeGeneric);
- return lldb::eExpressionCompleted;
- }
+ if (!diagnostic_manager.Diagnostics().size())
+ error.SetExpressionError(
+ execution_results, "expression failed to execute, unknown error");
else
- {
- if (options.InvokeCancelCallback (lldb::eExpressionEvaluationExecution))
- {
- error.SetExpressionError (lldb::eExpressionInterrupted, "expression interrupted by callback before execution");
- result_valobj_sp = ValueObjectConstResult::Create (exe_ctx.GetBestExecutionContextScope(), error);
- return lldb::eExpressionInterrupted;
- }
-
- diagnostic_manager.Clear();
-
- if (log)
- log->Printf("== [UserExpression::Evaluate] Executing expression ==");
-
- execution_results =
- user_expression_sp->Execute(diagnostic_manager, exe_ctx, options, user_expression_sp, expr_result);
-
- if (execution_results != lldb::eExpressionCompleted)
- {
- if (log)
- log->Printf("== [UserExpression::Evaluate] Execution completed abnormally ==");
-
- if (!diagnostic_manager.Diagnostics().size())
- error.SetExpressionError(execution_results, "expression failed to execute, unknown error");
- else
- error.SetExpressionError(execution_results, diagnostic_manager.GetString().c_str());
- }
- else
- {
- if (expr_result)
- {
- result_valobj_sp = expr_result->GetValueObject();
-
- if (log)
- log->Printf("== [UserExpression::Evaluate] Execution completed normally with result %s ==",
- result_valobj_sp->GetValueAsCString());
- }
- else
- {
- if (log)
- log->Printf("== [UserExpression::Evaluate] Execution completed normally with no result ==");
-
- error.SetError(UserExpression::kNoResult, lldb::eErrorTypeGeneric);
- }
- }
- }
- }
+ error.SetExpressionError(execution_results,
+ diagnostic_manager.GetString().c_str());
+ } else {
+ if (expr_result) {
+ result_valobj_sp = expr_result->GetValueObject();
+
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Execution completed "
+ "normally with result %s ==",
+ result_valobj_sp->GetValueAsCString());
+ } else {
+ if (log)
+ log->Printf("== [UserExpression::Evaluate] Execution completed "
+ "normally with no result ==");
- if (options.InvokeCancelCallback(lldb::eExpressionEvaluationComplete))
- {
- error.SetExpressionError (lldb::eExpressionInterrupted, "expression interrupted by callback after complete");
- return lldb::eExpressionInterrupted;
+ error.SetError(UserExpression::kNoResult, lldb::eErrorTypeGeneric);
+ }
+ }
}
+ }
- if (result_valobj_sp.get() == NULL)
- {
- result_valobj_sp = ValueObjectConstResult::Create (exe_ctx.GetBestExecutionContextScope(), error);
- }
+ if (options.InvokeCancelCallback(lldb::eExpressionEvaluationComplete)) {
+ error.SetExpressionError(
+ lldb::eExpressionInterrupted,
+ "expression interrupted by callback after complete");
+ return lldb::eExpressionInterrupted;
+ }
+
+ if (result_valobj_sp.get() == NULL) {
+ result_valobj_sp = ValueObjectConstResult::Create(
+ exe_ctx.GetBestExecutionContextScope(), error);
+ }
- return execution_results;
+ return execution_results;
}
lldb::ExpressionResults
@@ -406,15 +377,13 @@ UserExpression::Execute(DiagnosticManage
ExecutionContext &exe_ctx,
const EvaluateExpressionOptions &options,
lldb::UserExpressionSP &shared_ptr_to_me,
- lldb::ExpressionVariableSP &result_var)
-{
- lldb::ExpressionResults expr_result = DoExecute(diagnostic_manager, exe_ctx, options, shared_ptr_to_me, result_var);
- Target *target = exe_ctx.GetTargetPtr();
- if (options.GetResultIsInternal() && result_var && target)
- {
- target->GetPersistentExpressionStateForLanguage(m_language)->RemovePersistentVariable (result_var);
- }
- return expr_result;
+ lldb::ExpressionVariableSP &result_var) {
+ lldb::ExpressionResults expr_result = DoExecute(
+ diagnostic_manager, exe_ctx, options, shared_ptr_to_me, result_var);
+ Target *target = exe_ctx.GetTargetPtr();
+ if (options.GetResultIsInternal() && result_var && target) {
+ target->GetPersistentExpressionStateForLanguage(m_language)
+ ->RemovePersistentVariable(result_var);
+ }
+ return expr_result;
}
-
-
Modified: lldb/trunk/source/Expression/UtilityFunction.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Expression/UtilityFunction.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Expression/UtilityFunction.cpp (original)
+++ lldb/trunk/source/Expression/UtilityFunction.cpp Tue Sep 6 15:57:50 2016
@@ -1,4 +1,5 @@
-//===-- ClangUserExpression.cpp -------------------------------------*- C++ -*-===//
+//===-- ClangUserExpression.cpp -------------------------------------*- C++
+//-*-===//
//
// The LLVM Compiler Infrastructure
//
@@ -10,7 +11,7 @@
// C Includes
#include <stdio.h>
#if HAVE_SYS_TYPES_H
-# include <sys/types.h>
+#include <sys/types.h>
#endif
// C++ Includes
@@ -42,85 +43,74 @@ using namespace lldb;
/// @param[in] name
/// The name of the function, as used in the text.
//------------------------------------------------------------------
-UtilityFunction::UtilityFunction (ExecutionContextScope &exe_scope,
- const char *text,
- const char *name) :
- Expression (exe_scope),
- m_execution_unit_sp (),
- m_jit_module_wp (),
- m_function_text (ExpressionSourceCode::g_expression_prefix),
- m_function_name (name)
-{
- if (text && text[0])
- m_function_text.append (text);
+UtilityFunction::UtilityFunction(ExecutionContextScope &exe_scope,
+ const char *text, const char *name)
+ : Expression(exe_scope), m_execution_unit_sp(), m_jit_module_wp(),
+ m_function_text(ExpressionSourceCode::g_expression_prefix),
+ m_function_name(name) {
+ if (text && text[0])
+ m_function_text.append(text);
}
-UtilityFunction::~UtilityFunction ()
-{
- lldb::ProcessSP process_sp (m_jit_process_wp.lock());
- if (process_sp)
- {
- lldb::ModuleSP jit_module_sp (m_jit_module_wp.lock());
- if (jit_module_sp)
- process_sp->GetTarget().GetImages().Remove(jit_module_sp);
- }
-
+UtilityFunction::~UtilityFunction() {
+ lldb::ProcessSP process_sp(m_jit_process_wp.lock());
+ if (process_sp) {
+ lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
+ if (jit_module_sp)
+ process_sp->GetTarget().GetImages().Remove(jit_module_sp);
+ }
}
-// FIXME: We should check that every time this is called it is called with the same return type & arguments...
+// FIXME: We should check that every time this is called it is called with the
+// same return type & arguments...
-FunctionCaller *
-UtilityFunction::MakeFunctionCaller (const CompilerType &return_type, const ValueList &arg_value_list, lldb::ThreadSP thread_to_use_sp, Error &error)
-{
- if (m_caller_up)
- return m_caller_up.get();
-
- ProcessSP process_sp = m_jit_process_wp.lock();
- if (!process_sp)
- {
- error.SetErrorString("Can't make a function caller without a process.");
- return nullptr;
- }
-
- Address impl_code_address;
- impl_code_address.SetOffset(StartAddress());
- std::string name(m_function_name);
- name.append("-caller");
-
- m_caller_up.reset (process_sp->GetTarget().GetFunctionCallerForLanguage (Language(),
- return_type,
- impl_code_address,
- arg_value_list,
- name.c_str(),
- error));
- if (error.Fail())
- {
-
- return nullptr;
+FunctionCaller *UtilityFunction::MakeFunctionCaller(
+ const CompilerType &return_type, const ValueList &arg_value_list,
+ lldb::ThreadSP thread_to_use_sp, Error &error) {
+ if (m_caller_up)
+ return m_caller_up.get();
+
+ ProcessSP process_sp = m_jit_process_wp.lock();
+ if (!process_sp) {
+ error.SetErrorString("Can't make a function caller without a process.");
+ return nullptr;
+ }
+
+ Address impl_code_address;
+ impl_code_address.SetOffset(StartAddress());
+ std::string name(m_function_name);
+ name.append("-caller");
+
+ m_caller_up.reset(process_sp->GetTarget().GetFunctionCallerForLanguage(
+ Language(), return_type, impl_code_address, arg_value_list, name.c_str(),
+ error));
+ if (error.Fail()) {
+
+ return nullptr;
+ }
+ if (m_caller_up) {
+ DiagnosticManager diagnostics;
+
+ unsigned num_errors =
+ m_caller_up->CompileFunction(thread_to_use_sp, diagnostics);
+ if (num_errors) {
+ error.SetErrorStringWithFormat(
+ "Error compiling %s caller function: \"%s\".",
+ m_function_name.c_str(), diagnostics.GetString().c_str());
+ m_caller_up.reset();
+ return nullptr;
}
- if (m_caller_up)
- {
- DiagnosticManager diagnostics;
-
- unsigned num_errors = m_caller_up->CompileFunction(thread_to_use_sp, diagnostics);
- if (num_errors)
- {
- error.SetErrorStringWithFormat("Error compiling %s caller function: \"%s\".", m_function_name.c_str(),
- diagnostics.GetString().c_str());
- m_caller_up.reset();
- return nullptr;
- }
-
- diagnostics.Clear();
- ExecutionContext exe_ctx(process_sp);
-
- if (!m_caller_up->WriteFunctionWrapper(exe_ctx, diagnostics))
- {
- error.SetErrorStringWithFormat("Error inserting caller function for %s: \"%s\".", m_function_name.c_str(),
- diagnostics.GetString().c_str());
- m_caller_up.reset();
- return nullptr;
- }
+
+ diagnostics.Clear();
+ ExecutionContext exe_ctx(process_sp);
+
+ if (!m_caller_up->WriteFunctionWrapper(exe_ctx, diagnostics)) {
+ error.SetErrorStringWithFormat(
+ "Error inserting caller function for %s: \"%s\".",
+ m_function_name.c_str(), diagnostics.GetString().c_str());
+ m_caller_up.reset();
+ return nullptr;
}
- return m_caller_up.get();
+ }
+ return m_caller_up.get();
}
Modified: lldb/trunk/source/Host/android/HostInfoAndroid.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/android/HostInfoAndroid.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Host/android/HostInfoAndroid.cpp (original)
+++ lldb/trunk/source/Host/android/HostInfoAndroid.cpp Tue Sep 6 15:57:50 2016
@@ -15,90 +15,79 @@
using namespace lldb_private;
using namespace llvm;
-void
-HostInfoAndroid::ComputeHostArchitectureSupport(ArchSpec &arch_32, ArchSpec &arch_64)
-{
- HostInfoLinux::ComputeHostArchitectureSupport(arch_32, arch_64);
-
- if (arch_32.IsValid())
- {
- arch_32.GetTriple().setEnvironment(llvm::Triple::Android);
- }
- if (arch_64.IsValid())
- {
- arch_64.GetTriple().setEnvironment(llvm::Triple::Android);
- }
+void HostInfoAndroid::ComputeHostArchitectureSupport(ArchSpec &arch_32,
+ ArchSpec &arch_64) {
+ HostInfoLinux::ComputeHostArchitectureSupport(arch_32, arch_64);
+
+ if (arch_32.IsValid()) {
+ arch_32.GetTriple().setEnvironment(llvm::Triple::Android);
+ }
+ if (arch_64.IsValid()) {
+ arch_64.GetTriple().setEnvironment(llvm::Triple::Android);
+ }
}
-FileSpec
-HostInfoAndroid::GetDefaultShell()
-{
- return FileSpec("/system/bin/sh", false);
+FileSpec HostInfoAndroid::GetDefaultShell() {
+ return FileSpec("/system/bin/sh", false);
}
-FileSpec
-HostInfoAndroid::ResolveLibraryPath(const std::string& module_path, const ArchSpec& arch)
-{
- static const char* const ld_library_path_separator = ":";
- static const char* const default_lib32_path[] = {
- "/vendor/lib",
- "/system/lib",
- nullptr
- };
- static const char* const default_lib64_path[] = {
- "/vendor/lib64",
- "/system/lib64",
- nullptr
- };
-
- if (module_path.empty() || module_path[0] == '/')
- return FileSpec(module_path.c_str(), true);
-
- SmallVector<StringRef, 4> ld_paths;
-
- if (const char* ld_library_path = ::getenv("LD_LIBRARY_PATH"))
- StringRef(ld_library_path).split(ld_paths, StringRef(ld_library_path_separator), -1, false);
-
- const char* const* default_lib_path = nullptr;
- switch (arch.GetAddressByteSize())
- {
- case 4:
- default_lib_path = default_lib32_path;
- break;
- case 8:
- default_lib_path = default_lib64_path;
- break;
- default:
- assert(false && "Unknown address byte size");
- return FileSpec();
- }
-
- for(const char* const* it = default_lib_path; *it; ++it)
- ld_paths.push_back(StringRef(*it));
-
- for (const StringRef& path : ld_paths)
- {
- FileSpec file_candidate(path.str().c_str(), true);
- file_candidate.AppendPathComponent(module_path.c_str());
-
- if (file_candidate.Exists())
- return file_candidate;
- }
-
+FileSpec HostInfoAndroid::ResolveLibraryPath(const std::string &module_path,
+ const ArchSpec &arch) {
+ static const char *const ld_library_path_separator = ":";
+ static const char *const default_lib32_path[] = {"/vendor/lib", "/system/lib",
+ nullptr};
+ static const char *const default_lib64_path[] = {"/vendor/lib64",
+ "/system/lib64", nullptr};
+
+ if (module_path.empty() || module_path[0] == '/')
+ return FileSpec(module_path.c_str(), true);
+
+ SmallVector<StringRef, 4> ld_paths;
+
+ if (const char *ld_library_path = ::getenv("LD_LIBRARY_PATH"))
+ StringRef(ld_library_path)
+ .split(ld_paths, StringRef(ld_library_path_separator), -1, false);
+
+ const char *const *default_lib_path = nullptr;
+ switch (arch.GetAddressByteSize()) {
+ case 4:
+ default_lib_path = default_lib32_path;
+ break;
+ case 8:
+ default_lib_path = default_lib64_path;
+ break;
+ default:
+ assert(false && "Unknown address byte size");
return FileSpec();
+ }
+
+ for (const char *const *it = default_lib_path; *it; ++it)
+ ld_paths.push_back(StringRef(*it));
+
+ for (const StringRef &path : ld_paths) {
+ FileSpec file_candidate(path.str().c_str(), true);
+ file_candidate.AppendPathComponent(module_path.c_str());
+
+ if (file_candidate.Exists())
+ return file_candidate;
+ }
+
+ return FileSpec();
}
-bool
-HostInfoAndroid::ComputeTempFileBaseDirectory(FileSpec &file_spec)
-{
- bool success = HostInfoLinux::ComputeTempFileBaseDirectory(file_spec);
-
- // On Android, there is no path which is guaranteed to be writable. If the user has not
- // provided a path via an environment variable, the generic algorithm will deduce /tmp, which
- // is plain wrong. In that case we have an invalid directory, we substitute the path with
- // /data/local/tmp, which is correct at least in some cases (i.e., when running as shell user).
- if (!success || !file_spec.Exists())
- file_spec = FileSpec("/data/local/tmp", false);
+bool HostInfoAndroid::ComputeTempFileBaseDirectory(FileSpec &file_spec) {
+ bool success = HostInfoLinux::ComputeTempFileBaseDirectory(file_spec);
+
+ // On Android, there is no path which is guaranteed to be writable. If the
+ // user has not
+ // provided a path via an environment variable, the generic algorithm will
+ // deduce /tmp, which
+ // is plain wrong. In that case we have an invalid directory, we substitute
+ // the path with
+ // /data/local/tmp, which is correct at least in some cases (i.e., when
+ // running as shell user).
+ if (!success || !file_spec.Exists())
+ file_spec = FileSpec("/data/local/tmp", false);
- return file_spec.Exists();
+ return file_spec.Exists();
}
Modified: lldb/trunk/source/Host/android/LibcGlue.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/android/LibcGlue.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Host/android/LibcGlue.cpp (original)
+++ lldb/trunk/source/Host/android/LibcGlue.cpp Tue Sep 6 15:57:50 2016
@@ -15,21 +15,15 @@
#if __ANDROID_API__ < 21
-#include <sys/types.h>
-#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
+#include <sys/stat.h>
+#include <sys/types.h>
#include "lldb/Host/Time.h"
-time_t timegm(struct tm* t)
-{
- return (time_t) timegm64(t);
-}
-
-int posix_openpt(int flags)
-{
- return open("/dev/ptmx", flags);
-}
+time_t timegm(struct tm *t) { return (time_t)timegm64(t); }
+
+int posix_openpt(int flags) { return open("/dev/ptmx", flags); }
#endif
Modified: lldb/trunk/source/Host/common/Editline.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/common/Editline.cpp?rev=280751&r1=280750&r2=280751&view=diff
==============================================================================
--- lldb/trunk/source/Host/common/Editline.cpp (original)
+++ lldb/trunk/source/Host/common/Editline.cpp Tue Sep 6 15:57:50 2016
@@ -11,11 +11,11 @@
#include <iostream>
#include <limits.h>
-#include "lldb/Host/Editline.h"
-#include "lldb/Host/ConnectionFileDescriptor.h"
#include "lldb/Core/Error.h"
-#include "lldb/Core/StringList.h"
#include "lldb/Core/StreamString.h"
+#include "lldb/Core/StringList.h"
+#include "lldb/Host/ConnectionFileDescriptor.h"
+#include "lldb/Host/Editline.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Host/Host.h"
@@ -34,14 +34,17 @@ using namespace lldb_private::line_edito
// the function declaraction has been hoisted here.
#if defined(__APPLE__)
extern "C" {
- int setupterm(char *term, int fildes, int *errret);
+int setupterm(char *term, int fildes, int *errret);
}
#define USE_SETUPTERM_WORKAROUND
#endif
-// Editline uses careful cursor management to achieve the illusion of editing a multi-line block of text
-// with a single line editor. Preserving this illusion requires fairly careful management of cursor
-// state. Read and understand the relationship between DisplayInput(), MoveCursor(), SetCurrentLine(),
+// Editline uses careful cursor management to achieve the illusion of editing a
+// multi-line block of text
+// with a single line editor. Preserving this illusion requires fairly careful
+// management of cursor
+// state. Read and understand the relationship between DisplayInput(),
+// MoveCursor(), SetCurrentLine(),
// and SaveEditedLine() before making changes.
#define ESCAPE "\x1b"
@@ -63,7 +66,8 @@ extern "C" {
#define EditLineConstString(str) str
#define EditLineStringFormatSpec "%s"
-// use #defines so wide version functions and structs will resolve to old versions
+// use #defines so wide version functions and structs will resolve to old
+// versions
// for case of libedit not built with wide char support
#define history_w history
#define history_winit history_init
@@ -76,1430 +80,1290 @@ extern "C" {
#define el_wgetc el_getc
#define el_wpush el_push
#define el_wparse el_parse
-#define el_wset el_set
-#define el_wget el_get
+#define el_wset el_set
+#define el_wget el_get
#define el_wline el_line
#define el_winsertstr el_insertstr
-#define el_wdeletestr el_deletestr
+#define el_wdeletestr el_deletestr
#endif // #if LLDB_EDITLINE_USE_WCHAR
-bool
-IsOnlySpaces (const EditLineStringType & content)
-{
- for (wchar_t ch : content)
- {
- if (ch != EditLineCharType(' '))
- return false;
+bool IsOnlySpaces(const EditLineStringType &content) {
+ for (wchar_t ch : content) {
+ if (ch != EditLineCharType(' '))
+ return false;
+ }
+ return true;
+}
+
+EditLineStringType CombineLines(const std::vector<EditLineStringType> &lines) {
+ EditLineStringStreamType combined_stream;
+ for (EditLineStringType line : lines) {
+ combined_stream << line.c_str() << "\n";
+ }
+ return combined_stream.str();
+}
+
+std::vector<EditLineStringType> SplitLines(const EditLineStringType &input) {
+ std::vector<EditLineStringType> result;
+ size_t start = 0;
+ while (start < input.length()) {
+ size_t end = input.find('\n', start);
+ if (end == std::string::npos) {
+ result.insert(result.end(), input.substr(start));
+ break;
+ }
+ result.insert(result.end(), input.substr(start, end - start));
+ start = end + 1;
+ }
+ return result;
+}
+
+EditLineStringType FixIndentation(const EditLineStringType &line,
+ int indent_correction) {
+ if (indent_correction == 0)
+ return line;
+ if (indent_correction < 0)
+ return line.substr(-indent_correction);
+ return EditLineStringType(indent_correction, EditLineCharType(' ')) + line;
+}
+
+int GetIndentation(const EditLineStringType &line) {
+ int space_count = 0;
+ for (EditLineCharType ch : line) {
+ if (ch != EditLineCharType(' '))
+ break;
+ ++space_count;
+ }
+ return space_count;
+}
+
+bool IsInputPending(FILE *file) {
+ // FIXME: This will be broken on Windows if we ever re-enable Editline. You
+ // can't use select
+ // on something that isn't a socket. This will have to be re-written to not
+ // use a FILE*, but
+ // instead use some kind of yet-to-be-created abstraction that select-like
+ // functionality on
+ // non-socket objects.
+ const int fd = fileno(file);
+ SelectHelper select_helper;
+ select_helper.SetTimeout(std::chrono::microseconds(0));
+ select_helper.FDSetRead(fd);
+ return select_helper.Select().Success();
+}
+
+namespace lldb_private {
+namespace line_editor {
+typedef std::weak_ptr<EditlineHistory> EditlineHistoryWP;
+
+// EditlineHistory objects are sometimes shared between multiple
+// Editline instances with the same program name.
+
+class EditlineHistory {
+private:
+ // Use static GetHistory() function to get a EditlineHistorySP to one of these
+ // objects
+ EditlineHistory(const std::string &prefix, uint32_t size, bool unique_entries)
+ : m_history(NULL), m_event(), m_prefix(prefix), m_path() {
+ m_history = history_winit();
+ history_w(m_history, &m_event, H_SETSIZE, size);
+ if (unique_entries)
+ history_w(m_history, &m_event, H_SETUNIQUE, 1);
+ }
+
+ const char *GetHistoryFilePath() {
+ if (m_path.empty() && m_history && !m_prefix.empty()) {
+ FileSpec parent_path{"~/.lldb", true};
+ char history_path[PATH_MAX];
+ if (FileSystem::MakeDirectory(parent_path,
+ lldb::eFilePermissionsDirectoryDefault)
+ .Success()) {
+ snprintf(history_path, sizeof(history_path), "~/.lldb/%s-history",
+ m_prefix.c_str());
+ } else {
+ snprintf(history_path, sizeof(history_path), "~/%s-widehistory",
+ m_prefix.c_str());
+ }
+ m_path = FileSpec(history_path, true).GetPath();
+ }
+ if (m_path.empty())
+ return NULL;
+ return m_path.c_str();
+ }
+
+public:
+ ~EditlineHistory() {
+ Save();
+
+ if (m_history) {
+ history_wend(m_history);
+ m_history = NULL;
+ }
+ }
+
+ static EditlineHistorySP GetHistory(const std::string &prefix) {
+ typedef std::map<std::string, EditlineHistoryWP> WeakHistoryMap;
+ static std::recursive_mutex g_mutex;
+ static WeakHistoryMap g_weak_map;
+ std::lock_guard<std::recursive_mutex> guard(g_mutex);
+ WeakHistoryMap::const_iterator pos = g_weak_map.find(prefix);
+ EditlineHistorySP history_sp;
+ if (pos != g_weak_map.end()) {
+ history_sp = pos->second.lock();
+ if (history_sp)
+ return history_sp;
+ g_weak_map.erase(pos);
+ }
+ history_sp.reset(new EditlineHistory(prefix, 800, true));
+ g_weak_map[prefix] = history_sp;
+ return history_sp;
+ }
+
+ bool IsValid() const { return m_history != NULL; }
+
+ HistoryW *GetHistoryPtr() { return m_history; }
+
+ void Enter(const EditLineCharType *line_cstr) {
+ if (m_history)
+ history_w(m_history, &m_event, H_ENTER, line_cstr);
+ }
+
+ bool Load() {
+ if (m_history) {
+ const char *path = GetHistoryFilePath();
+ if (path) {
+ history_w(m_history, &m_event, H_LOAD, path);
+ return true;
+ }
}
- return true;
-}
+ return false;
+ }
-EditLineStringType
-CombineLines (const std::vector<EditLineStringType> & lines)
-{
- EditLineStringStreamType combined_stream;
- for (EditLineStringType line : lines)
- {
- combined_stream << line.c_str() << "\n";
- }
- return combined_stream.str();
-}
-
-std::vector<EditLineStringType>
-SplitLines (const EditLineStringType & input)
-{
- std::vector<EditLineStringType> result;
- size_t start = 0;
- while (start < input.length())
- {
- size_t end = input.find ('\n', start);
- if (end == std::string::npos)
- {
- result.insert (result.end(), input.substr (start));
- break;
- }
- result.insert (result.end(), input.substr (start, end - start));
- start = end + 1;
+ bool Save() {
+ if (m_history) {
+ const char *path = GetHistoryFilePath();
+ if (path) {
+ history_w(m_history, &m_event, H_SAVE, path);
+ return true;
+ }
}
- return result;
-}
+ return false;
+ }
-EditLineStringType
-FixIndentation (const EditLineStringType & line, int indent_correction)
-{
- if (indent_correction == 0)
- return line;
- if (indent_correction < 0)
- return line.substr (-indent_correction);
- return EditLineStringType (indent_correction, EditLineCharType(' ')) + line;
-}
-
-int
-GetIndentation (const EditLineStringType & line)
-{
- int space_count = 0;
- for (EditLineCharType ch : line)
- {
- if (ch != EditLineCharType(' '))
- break;
- ++space_count;
- }
- return space_count;
-}
-
-bool
-IsInputPending (FILE * file)
-{
- // FIXME: This will be broken on Windows if we ever re-enable Editline. You can't use select
- // on something that isn't a socket. This will have to be re-written to not use a FILE*, but
- // instead use some kind of yet-to-be-created abstraction that select-like functionality on
- // non-socket objects.
- const int fd = fileno (file);
- SelectHelper select_helper;
- select_helper.SetTimeout(std::chrono::microseconds(0));
- select_helper.FDSetRead(fd);
- return select_helper.Select().Success();
-}
-
-namespace lldb_private
-{
- namespace line_editor
- {
- typedef std::weak_ptr<EditlineHistory> EditlineHistoryWP;
-
- // EditlineHistory objects are sometimes shared between multiple
- // Editline instances with the same program name.
-
- class EditlineHistory
- {
- private:
- // Use static GetHistory() function to get a EditlineHistorySP to one of these objects
- EditlineHistory (const std::string &prefix, uint32_t size, bool unique_entries) :
- m_history (NULL),
- m_event (),
- m_prefix (prefix),
- m_path ()
- {
- m_history = history_winit();
- history_w (m_history, &m_event, H_SETSIZE, size);
- if (unique_entries)
- history_w (m_history, &m_event, H_SETUNIQUE, 1);
- }
-
- const char *
- GetHistoryFilePath()
- {
- if (m_path.empty() && m_history && !m_prefix.empty())
- {
- FileSpec parent_path{"~/.lldb", true};
- char history_path[PATH_MAX];
- if (FileSystem::MakeDirectory(parent_path, lldb::eFilePermissionsDirectoryDefault).Success())
- {
- snprintf (history_path, sizeof (history_path), "~/.lldb/%s-history", m_prefix.c_str());
- }
- else
- {
- snprintf (history_path, sizeof (history_path), "~/%s-widehistory", m_prefix.c_str());
- }
- m_path = FileSpec (history_path, true).GetPath();
- }
- if (m_path.empty())
- return NULL;
- return m_path.c_str();
- }
-
- public:
-
- ~EditlineHistory()
- {
- Save();
-
- if (m_history)
- {
- history_wend (m_history);
- m_history = NULL;
- }
- }
-
- static EditlineHistorySP
- GetHistory (const std::string &prefix)
- {
- typedef std::map<std::string, EditlineHistoryWP> WeakHistoryMap;
- static std::recursive_mutex g_mutex;
- static WeakHistoryMap g_weak_map;
- std::lock_guard<std::recursive_mutex> guard(g_mutex);
- WeakHistoryMap::const_iterator pos = g_weak_map.find (prefix);
- EditlineHistorySP history_sp;
- if (pos != g_weak_map.end())
- {
- history_sp = pos->second.lock();
- if (history_sp)
- return history_sp;
- g_weak_map.erase (pos);
- }
- history_sp.reset (new EditlineHistory (prefix, 800, true));
- g_weak_map[prefix] = history_sp;
- return history_sp;
- }
-
- bool IsValid() const
- {
- return m_history != NULL;
- }
-
- HistoryW *
- GetHistoryPtr ()
- {
- return m_history;
- }
-
- void
- Enter (const EditLineCharType *line_cstr)
- {
- if (m_history)
- history_w (m_history, &m_event, H_ENTER, line_cstr);
- }
-
- bool
- Load ()
- {
- if (m_history)
- {
- const char *path = GetHistoryFilePath();
- if (path)
- {
- history_w (m_history, &m_event, H_LOAD, path);
- return true;
- }
- }
- return false;
- }
-
- bool
- Save ()
- {
- if (m_history)
- {
- const char *path = GetHistoryFilePath();
- if (path)
- {
- history_w (m_history, &m_event, H_SAVE, path);
- return true;
- }
- }
- return false;
- }
-
- protected:
- HistoryW * m_history; // The history object
- HistEventW m_event; // The history event needed to contain all history events
- std::string m_prefix; // The prefix name (usually the editline program name) to use when loading/saving history
- std::string m_path; // Path to the history file
- };
- }
+protected:
+ HistoryW *m_history; // The history object
+ HistEventW m_event; // The history event needed to contain all history events
+ std::string m_prefix; // The prefix name (usually the editline program name)
+ // to use when loading/saving history
+ std::string m_path; // Path to the history file
+};
+}
}
//------------------------------------------------------------------
// Editline private methods
//------------------------------------------------------------------
-void
-Editline::SetBaseLineNumber (int line_number)
-{
- std::stringstream line_number_stream;
- line_number_stream << line_number;
- m_base_line_number = line_number;
- m_line_number_digits = std::max (3, (int)line_number_stream.str().length() + 1);
-}
-
-std::string
-Editline::PromptForIndex (int line_index)
-{
- bool use_line_numbers = m_multiline_enabled && m_base_line_number > 0;
- std::string prompt = m_set_prompt;
- if (use_line_numbers && prompt.length() == 0)
- {
- prompt = ": ";
- }
- std::string continuation_prompt = prompt;
- if (m_set_continuation_prompt.length() > 0)
- {
- continuation_prompt = m_set_continuation_prompt;
-
- // Ensure that both prompts are the same length through space padding
- while (continuation_prompt.length() < prompt.length())
- {
- continuation_prompt += ' ';
- }
- while (prompt.length() < continuation_prompt.length())
- {
- prompt += ' ';
- }
- }
-
- if (use_line_numbers)
- {
- StreamString prompt_stream;
- prompt_stream.Printf("%*d%s", m_line_number_digits, m_base_line_number + line_index,
- (line_index == 0) ? prompt.c_str() : continuation_prompt.c_str());
- return std::move (prompt_stream.GetString());
- }
- return (line_index == 0) ? prompt : continuation_prompt;
-}
-
-void
-Editline::SetCurrentLine (int line_index)
-{
- m_current_line_index = line_index;
- m_current_prompt = PromptForIndex (line_index);
-}
-
-int
-Editline::GetPromptWidth()
-{
- return (int)PromptForIndex (0).length();
-}
-
-bool
-Editline::IsEmacs()
-{
- const char * editor;
- el_get (m_editline, EL_EDITOR, &editor);
- return editor[0] == 'e';
-}
-
-bool
-Editline::IsOnlySpaces()
-{
- const LineInfoW * info = el_wline (m_editline);
- for (const EditLineCharType * character = info->buffer; character < info->lastchar; character++)
- {
- if (*character != ' ')
- return false;
- }
- return true;
-}
-
-int
-Editline::GetLineIndexForLocation (CursorLocation location, int cursor_row)
-{
- int line = 0;
- if (location == CursorLocation::EditingPrompt || location == CursorLocation::BlockEnd ||
- location == CursorLocation::EditingCursor)
- {
- for (unsigned index = 0; index < m_current_line_index; index++)
- {
- line += CountRowsForLine (m_input_lines[index]);
- }
- if (location == CursorLocation::EditingCursor)
- {
- line += cursor_row;
- }
- else if (location == CursorLocation::BlockEnd)
- {
- for (unsigned index = m_current_line_index; index < m_input_lines.size(); index++)
- {
- line += CountRowsForLine (m_input_lines[index]);
- }
- --line;
- }
- }
- return line;
-}
-
-void
-Editline::MoveCursor (CursorLocation from, CursorLocation to)
-{
- const LineInfoW * info = el_wline (m_editline);
- int editline_cursor_position = (int)((info->cursor - info->buffer) + GetPromptWidth());
- int editline_cursor_row = editline_cursor_position / m_terminal_width;
-
- // Determine relative starting and ending lines
- int fromLine = GetLineIndexForLocation (from, editline_cursor_row);
- int toLine = GetLineIndexForLocation (to, editline_cursor_row);
- if (toLine != fromLine)
- {
- fprintf (m_output_file, (toLine > fromLine) ? ANSI_DOWN_N_ROWS : ANSI_UP_N_ROWS, std::abs (toLine - fromLine));
- }
-
- // Determine target column
- int toColumn = 1;
- if (to == CursorLocation::EditingCursor)
- {
- toColumn = editline_cursor_position - (editline_cursor_row * m_terminal_width) + 1;
- }
- else if (to == CursorLocation::BlockEnd)
- {
- toColumn = ((m_input_lines[m_input_lines.size() - 1].length() + GetPromptWidth()) % 80) + 1;
- }
- fprintf (m_output_file, ANSI_SET_COLUMN_N, toColumn);
-}
-
-void
-Editline::DisplayInput (int firstIndex)
-{
- fprintf (m_output_file, ANSI_SET_COLUMN_N ANSI_CLEAR_BELOW, 1);
- int line_count = (int)m_input_lines.size();
- const char *faint = m_color_prompts ? ANSI_FAINT : "";
- const char *unfaint = m_color_prompts ? ANSI_UNFAINT : "";
-
- for (int index = firstIndex; index < line_count; index++)
- {
- fprintf (m_output_file, "%s" "%s" "%s" EditLineStringFormatSpec " ",
- faint,
- PromptForIndex (index).c_str(),
- unfaint,
- m_input_lines[index].c_str());
- if (index < line_count - 1)
- fprintf (m_output_file, "\n");
- }
-}
-
-
-int
-Editline::CountRowsForLine (const EditLineStringType & content)
-{
- auto prompt = PromptForIndex (0); // Prompt width is constant during an edit session
- int line_length = (int)(content.length() + prompt.length());
- return (line_length / m_terminal_width) + 1;
-}
-
-void
-Editline::SaveEditedLine()
-{
- const LineInfoW * info = el_wline (m_editline);
- m_input_lines[m_current_line_index] = EditLineStringType (info->buffer, info->lastchar - info->buffer);
-}
-
-StringList
-Editline::GetInputAsStringList(int line_count)
-{
- StringList lines;
- for (EditLineStringType line : m_input_lines)
- {
- if (line_count == 0)
- break;
+void Editline::SetBaseLineNumber(int line_number) {
+ std::stringstream line_number_stream;
+ line_number_stream << line_number;
+ m_base_line_number = line_number;
+ m_line_number_digits =
+ std::max(3, (int)line_number_stream.str().length() + 1);
+}
+
+std::string Editline::PromptForIndex(int line_index) {
+ bool use_line_numbers = m_multiline_enabled && m_base_line_number > 0;
+ std::string prompt = m_set_prompt;
+ if (use_line_numbers && prompt.length() == 0) {
+ prompt = ": ";
+ }
+ std::string continuation_prompt = prompt;
+ if (m_set_continuation_prompt.length() > 0) {
+ continuation_prompt = m_set_continuation_prompt;
+
+ // Ensure that both prompts are the same length through space padding
+ while (continuation_prompt.length() < prompt.length()) {
+ continuation_prompt += ' ';
+ }
+ while (prompt.length() < continuation_prompt.length()) {
+ prompt += ' ';
+ }
+ }
+
+ if (use_line_numbers) {
+ StreamString prompt_stream;
+ prompt_stream.Printf(
+ "%*d%s", m_line_number_digits, m_base_line_number + line_index,
+ (line_index == 0) ? prompt.c_str() : continuation_prompt.c_str());
+ return std::move(prompt_stream.GetString());
+ }
+ return (line_index == 0) ? prompt : continuation_prompt;
+}
+
+void Editline::SetCurrentLine(int line_index) {
+ m_current_line_index = line_index;
+ m_current_prompt = PromptForIndex(line_index);
+}
+
+int Editline::GetPromptWidth() { return (int)PromptForIndex(0).length(); }
+
+bool Editline::IsEmacs() {
+ const char *editor;
+ el_get(m_editline, EL_EDITOR, &editor);
+ return editor[0] == 'e';
+}
+
+bool Editline::IsOnlySpaces() {
+ const LineInfoW *info = el_wline(m_editline);
+ for (const EditLineCharType *character = info->buffer;
+ character < info->lastchar; character++) {
+ if (*character != ' ')
+ return false;
+ }
+ return true;
+}
+
+int Editline::GetLineIndexForLocation(CursorLocation location, int cursor_row) {
+ int line = 0;
+ if (location == CursorLocation::EditingPrompt ||
+ location == CursorLocation::BlockEnd ||
+ location == CursorLocation::EditingCursor) {
+ for (unsigned index = 0; index < m_current_line_index; index++) {
+ line += CountRowsForLine(m_input_lines[index]);
+ }
+ if (location == CursorLocation::EditingCursor) {
+ line += cursor_row;
+ } else if (location == CursorLocation::BlockEnd) {
+ for (unsigned index = m_current_line_index; index < m_input_lines.size();
+ index++) {
+ line += CountRowsForLine(m_input_lines[index]);
+ }
+ --line;
+ }
+ }
+ return line;
+}
+
+void Editline::MoveCursor(CursorLocation from, CursorLocation to) {
+ const LineInfoW *info = el_wline(m_editline);
+ int editline_cursor_position =
+ (int)((info->cursor - info->buffer) + GetPromptWidth());
+ int editline_cursor_row = editline_cursor_position / m_terminal_width;
+
+ // Determine relative starting and ending lines
+ int fromLine = GetLineIndexForLocation(from, editline_cursor_row);
+ int toLine = GetLineIndexForLocation(to, editline_cursor_row);
+ if (toLine != fromLine) {
+ fprintf(m_output_file,
+ (toLine > fromLine) ? ANSI_DOWN_N_ROWS : ANSI_UP_N_ROWS,
+ std::abs(toLine - fromLine));
+ }
+
+ // Determine target column
+ int toColumn = 1;
+ if (to == CursorLocation::EditingCursor) {
+ toColumn =
+ editline_cursor_position - (editline_cursor_row * m_terminal_width) + 1;
+ } else if (to == CursorLocation::BlockEnd) {
+ toColumn =
+ ((m_input_lines[m_input_lines.size() - 1].length() + GetPromptWidth()) %
+ 80) +
+ 1;
+ }
+ fprintf(m_output_file, ANSI_SET_COLUMN_N, toColumn);
+}
+
+void Editline::DisplayInput(int firstIndex) {
+ fprintf(m_output_file, ANSI_SET_COLUMN_N ANSI_CLEAR_BELOW, 1);
+ int line_count = (int)m_input_lines.size();
+ const char *faint = m_color_prompts ? ANSI_FAINT : "";
+ const char *unfaint = m_color_prompts ? ANSI_UNFAINT : "";
+
+ for (int index = firstIndex; index < line_count; index++) {
+ fprintf(m_output_file, "%s"
+ "%s"
+ "%s" EditLineStringFormatSpec " ",
+ faint, PromptForIndex(index).c_str(), unfaint,
+ m_input_lines[index].c_str());
+ if (index < line_count - 1)
+ fprintf(m_output_file, "\n");
+ }
+}
+
+int Editline::CountRowsForLine(const EditLineStringType &content) {
+ auto prompt =
+ PromptForIndex(0); // Prompt width is constant during an edit session
+ int line_length = (int)(content.length() + prompt.length());
+ return (line_length / m_terminal_width) + 1;
+}
+
+void Editline::SaveEditedLine() {
+ const LineInfoW *info = el_wline(m_editline);
+ m_input_lines[m_current_line_index] =
+ EditLineStringType(info->buffer, info->lastchar - info->buffer);
+}
+
+StringList Editline::GetInputAsStringList(int line_count) {
+ StringList lines;
+ for (EditLineStringType line : m_input_lines) {
+ if (line_count == 0)
+ break;
#if LLDB_EDITLINE_USE_WCHAR
- lines.AppendString (m_utf8conv.to_bytes (line));
+ lines.AppendString(m_utf8conv.to_bytes(line));
#else
- lines.AppendString(line);
+ lines.AppendString(line);
#endif
- --line_count;
- }
- return lines;
-}
-
-unsigned char
-Editline::RecallHistory (bool earlier)
-{
- if (!m_history_sp || !m_history_sp->IsValid())
+ --line_count;
+ }
+ return lines;
+}
+
+unsigned char Editline::RecallHistory(bool earlier) {
+ if (!m_history_sp || !m_history_sp->IsValid())
+ return CC_ERROR;
+
+ HistoryW *pHistory = m_history_sp->GetHistoryPtr();
+ HistEventW history_event;
+ std::vector<EditLineStringType> new_input_lines;
+
+ // Treat moving from the "live" entry differently
+ if (!m_in_history) {
+ if (earlier == false)
+ return CC_ERROR; // Can't go newer than the "live" entry
+ if (history_w(pHistory, &history_event, H_FIRST) == -1)
+ return CC_ERROR;
+
+ // Save any edits to the "live" entry in case we return by moving forward in
+ // history
+ // (it would be more bash-like to save over any current entry, but libedit
+ // doesn't
+ // offer the ability to add entries anywhere except the end.)
+ SaveEditedLine();
+ m_live_history_lines = m_input_lines;
+ m_in_history = true;
+ } else {
+ if (history_w(pHistory, &history_event, earlier ? H_NEXT : H_PREV) == -1) {
+ // Can't move earlier than the earliest entry
+ if (earlier)
return CC_ERROR;
-
- HistoryW * pHistory = m_history_sp->GetHistoryPtr();
- HistEventW history_event;
- std::vector<EditLineStringType> new_input_lines;
-
- // Treat moving from the "live" entry differently
- if (!m_in_history)
- {
- if (earlier == false)
- return CC_ERROR; // Can't go newer than the "live" entry
- if (history_w (pHistory, &history_event, H_FIRST) == -1)
- return CC_ERROR;
-
- // Save any edits to the "live" entry in case we return by moving forward in history
- // (it would be more bash-like to save over any current entry, but libedit doesn't
- // offer the ability to add entries anywhere except the end.)
- SaveEditedLine();
- m_live_history_lines = m_input_lines;
- m_in_history = true;
- }
- else
- {
- if (history_w (pHistory, &history_event, earlier ? H_NEXT : H_PREV) == -1)
- {
- // Can't move earlier than the earliest entry
- if (earlier)
- return CC_ERROR;
-
- // ... but moving to newer than the newest yields the "live" entry
- new_input_lines = m_live_history_lines;
- m_in_history = false;
- }
- }
-
- // If we're pulling the lines from history, split them apart
- if (m_in_history)
- new_input_lines = SplitLines (history_event.str);
-
- // Erase the current edit session and replace it with a new one
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::BlockStart);
- m_input_lines = new_input_lines;
- DisplayInput();
-
- // Prepare to edit the last line when moving to previous entry, or the first line
- // when moving to next entry
- SetCurrentLine (m_current_line_index = earlier ? (int)m_input_lines.size() - 1 : 0);
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
- return CC_NEWLINE;
-}
-
-int
-Editline::GetCharacter (EditLineCharType * c)
-{
- const LineInfoW * info = el_wline (m_editline);
-
- // Paint a faint version of the desired prompt over the version libedit draws
- // (will only be requested if colors are supported)
- if (m_needs_prompt_repaint)
- {
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
- fprintf (m_output_file, "%s" "%s" "%s", ANSI_FAINT, Prompt(), ANSI_UNFAINT);
- MoveCursor (CursorLocation::EditingPrompt, CursorLocation::EditingCursor);
- m_needs_prompt_repaint = false;
- }
-
- if (m_multiline_enabled)
- {
- // Detect when the number of rows used for this input line changes due to an edit
- int lineLength = (int)((info->lastchar - info->buffer) + GetPromptWidth());
- int new_line_rows = (lineLength / m_terminal_width) + 1;
- if (m_current_line_rows != -1 && new_line_rows != m_current_line_rows)
- {
- // Respond by repainting the current state from this line on
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
- SaveEditedLine();
- DisplayInput (m_current_line_index);
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::EditingCursor);
- }
- m_current_line_rows = new_line_rows;
+
+ // ... but moving to newer than the newest yields the "live" entry
+ new_input_lines = m_live_history_lines;
+ m_in_history = false;
+ }
+ }
+
+ // If we're pulling the lines from history, split them apart
+ if (m_in_history)
+ new_input_lines = SplitLines(history_event.str);
+
+ // Erase the current edit session and replace it with a new one
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockStart);
+ m_input_lines = new_input_lines;
+ DisplayInput();
+
+ // Prepare to edit the last line when moving to previous entry, or the first
+ // line
+ // when moving to next entry
+ SetCurrentLine(m_current_line_index =
+ earlier ? (int)m_input_lines.size() - 1 : 0);
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
+ return CC_NEWLINE;
+}
+
+int Editline::GetCharacter(EditLineCharType *c) {
+ const LineInfoW *info = el_wline(m_editline);
+
+ // Paint a faint version of the desired prompt over the version libedit draws
+ // (will only be requested if colors are supported)
+ if (m_needs_prompt_repaint) {
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
+ fprintf(m_output_file, "%s"
+ "%s"
+ "%s",
+ ANSI_FAINT, Prompt(), ANSI_UNFAINT);
+ MoveCursor(CursorLocation::EditingPrompt, CursorLocation::EditingCursor);
+ m_needs_prompt_repaint = false;
+ }
+
+ if (m_multiline_enabled) {
+ // Detect when the number of rows used for this input line changes due to an
+ // edit
+ int lineLength = (int)((info->lastchar - info->buffer) + GetPromptWidth());
+ int new_line_rows = (lineLength / m_terminal_width) + 1;
+ if (m_current_line_rows != -1 && new_line_rows != m_current_line_rows) {
+ // Respond by repainting the current state from this line on
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
+ SaveEditedLine();
+ DisplayInput(m_current_line_index);
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingCursor);
+ }
+ m_current_line_rows = new_line_rows;
+ }
+
+ // Read an actual character
+ while (true) {
+ lldb::ConnectionStatus status = lldb::eConnectionStatusSuccess;
+ char ch = 0;
+
+ // This mutex is locked by our caller (GetLine). Unlock it while we read a
+ // character
+ // (blocking operation), so we do not hold the mutex indefinitely. This
+ // gives a chance
+ // for someone to interrupt us. After Read returns, immediately lock the
+ // mutex again and
+ // check if we were interrupted.
+ m_output_mutex.unlock();
+ int read_count = m_input_connection.Read(&ch, 1, UINT32_MAX, status, NULL);
+ m_output_mutex.lock();
+ if (m_editor_status == EditorStatus::Interrupted) {
+ while (read_count > 0 && status == lldb::eConnectionStatusSuccess)
+ read_count = m_input_connection.Read(&ch, 1, UINT32_MAX, status, NULL);
+ lldbassert(status == lldb::eConnectionStatusInterrupted);
+ return 0;
}
-
- // Read an actual character
- while (true)
- {
- lldb::ConnectionStatus status = lldb::eConnectionStatusSuccess;
- char ch = 0;
-
- // This mutex is locked by our caller (GetLine). Unlock it while we read a character
- // (blocking operation), so we do not hold the mutex indefinitely. This gives a chance
- // for someone to interrupt us. After Read returns, immediately lock the mutex again and
- // check if we were interrupted.
- m_output_mutex.unlock();
- int read_count = m_input_connection.Read(&ch, 1, UINT32_MAX, status, NULL);
- m_output_mutex.lock();
- if (m_editor_status == EditorStatus::Interrupted)
- {
- while (read_count > 0 && status == lldb::eConnectionStatusSuccess)
- read_count = m_input_connection.Read(&ch, 1, UINT32_MAX, status, NULL);
- lldbassert(status == lldb::eConnectionStatusInterrupted);
- return 0;
- }
- if (read_count)
- {
+ if (read_count) {
#if LLDB_EDITLINE_USE_WCHAR
- // After the initial interruptible read, this is guaranteed not to block
- ungetc (ch, m_input_file);
- *c = fgetwc (m_input_file);
- if (*c != WEOF)
- return 1;
+ // After the initial interruptible read, this is guaranteed not to block
+ ungetc(ch, m_input_file);
+ *c = fgetwc(m_input_file);
+ if (*c != WEOF)
+ return 1;
#else
- *c = ch;
- if(ch != (char)EOF)
- return 1;
+ *c = ch;
+ if (ch != (char)EOF)
+ return 1;
#endif
- }
- else
- {
- switch (status)
- {
- case lldb::eConnectionStatusSuccess: // Success
- break;
-
- case lldb::eConnectionStatusInterrupted:
- lldbassert(0 && "Interrupts should have been handled above.");
-
- case lldb::eConnectionStatusError: // Check GetError() for details
- case lldb::eConnectionStatusTimedOut: // Request timed out
- case lldb::eConnectionStatusEndOfFile: // End-of-file encountered
- case lldb::eConnectionStatusNoConnection: // No connection
- case lldb::eConnectionStatusLostConnection: // Lost connection while connected to a valid connection
- m_editor_status = EditorStatus::EndOfInput;
- return 0;
- }
- }
- }
-}
-
-const char *
-Editline::Prompt()
-{
- if (m_color_prompts)
- m_needs_prompt_repaint = true;
- return m_current_prompt.c_str();
-}
-
-unsigned char
-Editline::BreakLineCommand (int ch)
-{
- // Preserve any content beyond the cursor, truncate and save the current line
- const LineInfoW * info = el_wline (m_editline);
- auto current_line = EditLineStringType (info->buffer, info->cursor - info->buffer);
- auto new_line_fragment = EditLineStringType (info->cursor, info->lastchar - info->cursor);
- m_input_lines[m_current_line_index] = current_line;
-
- // Ignore whitespace-only extra fragments when breaking a line
- if (::IsOnlySpaces (new_line_fragment))
- new_line_fragment = EditLineConstString("");
-
- // Establish the new cursor position at the start of a line when inserting a line break
- m_revert_cursor_index = 0;
-
- // Don't perform automatic formatting when pasting
- if (!IsInputPending (m_input_file))
- {
- // Apply smart indentation
- if (m_fix_indentation_callback)
- {
- StringList lines = GetInputAsStringList (m_current_line_index + 1);
+ } else {
+ switch (status) {
+ case lldb::eConnectionStatusSuccess: // Success
+ break;
+
+ case lldb::eConnectionStatusInterrupted:
+ lldbassert(0 && "Interrupts should have been handled above.");
+
+ case lldb::eConnectionStatusError: // Check GetError() for details
+ case lldb::eConnectionStatusTimedOut: // Request timed out
+ case lldb::eConnectionStatusEndOfFile: // End-of-file encountered
+ case lldb::eConnectionStatusNoConnection: // No connection
+ case lldb::eConnectionStatusLostConnection: // Lost connection while
+ // connected to a valid
+ // connection
+ m_editor_status = EditorStatus::EndOfInput;
+ return 0;
+ }
+ }
+ }
+}
+
+const char *Editline::Prompt() {
+ if (m_color_prompts)
+ m_needs_prompt_repaint = true;
+ return m_current_prompt.c_str();
+}
+
+unsigned char Editline::BreakLineCommand(int ch) {
+ // Preserve any content beyond the cursor, truncate and save the current line
+ const LineInfoW *info = el_wline(m_editline);
+ auto current_line =
+ EditLineStringType(info->buffer, info->cursor - info->buffer);
+ auto new_line_fragment =
+ EditLineStringType(info->cursor, info->lastchar - info->cursor);
+ m_input_lines[m_current_line_index] = current_line;
+
+ // Ignore whitespace-only extra fragments when breaking a line
+ if (::IsOnlySpaces(new_line_fragment))
+ new_line_fragment = EditLineConstString("");
+
+ // Establish the new cursor position at the start of a line when inserting a
+ // line break
+ m_revert_cursor_index = 0;
+
+ // Don't perform automatic formatting when pasting
+ if (!IsInputPending(m_input_file)) {
+ // Apply smart indentation
+ if (m_fix_indentation_callback) {
+ StringList lines = GetInputAsStringList(m_current_line_index + 1);
#if LLDB_EDITLINE_USE_WCHAR
- lines.AppendString (m_utf8conv.to_bytes (new_line_fragment));
+ lines.AppendString(m_utf8conv.to_bytes(new_line_fragment));
#else
- lines.AppendString (new_line_fragment);
+ lines.AppendString(new_line_fragment);
#endif
-
- int indent_correction = m_fix_indentation_callback (this, lines, 0, m_fix_indentation_callback_baton);
- new_line_fragment = FixIndentation(new_line_fragment, indent_correction);
- m_revert_cursor_index = GetIndentation(new_line_fragment);
- }
- }
-
- // Insert the new line and repaint everything from the split line on down
- m_input_lines.insert (m_input_lines.begin() + m_current_line_index + 1, new_line_fragment);
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
- DisplayInput (m_current_line_index);
-
- // Reposition the cursor to the right line and prepare to edit the new line
- SetCurrentLine (m_current_line_index + 1);
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
- return CC_NEWLINE;
-}
-
-unsigned char
-Editline::EndOrAddLineCommand(int ch)
-{
- // Don't perform end of input detection when pasting, always treat this as a line break
- if (IsInputPending(m_input_file))
- {
- return BreakLineCommand(ch);
- }
- // Save any edits to this line
- SaveEditedLine();
+ int indent_correction = m_fix_indentation_callback(
+ this, lines, 0, m_fix_indentation_callback_baton);
+ new_line_fragment = FixIndentation(new_line_fragment, indent_correction);
+ m_revert_cursor_index = GetIndentation(new_line_fragment);
+ }
+ }
+
+ // Insert the new line and repaint everything from the split line on down
+ m_input_lines.insert(m_input_lines.begin() + m_current_line_index + 1,
+ new_line_fragment);
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
+ DisplayInput(m_current_line_index);
+
+ // Reposition the cursor to the right line and prepare to edit the new line
+ SetCurrentLine(m_current_line_index + 1);
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
+ return CC_NEWLINE;
+}
+
+unsigned char Editline::EndOrAddLineCommand(int ch) {
+ // Don't perform end of input detection when pasting, always treat this as a
+ // line break
+ if (IsInputPending(m_input_file)) {
+ return BreakLineCommand(ch);
+ }
+
+ // Save any edits to this line
+ SaveEditedLine();
+
+ // If this is the end of the last line, consider whether to add a line instead
+ const LineInfoW *info = el_wline(m_editline);
+ if (m_current_line_index == m_input_lines.size() - 1 &&
+ info->cursor == info->lastchar) {
+ if (m_is_input_complete_callback) {
+ auto lines = GetInputAsStringList();
+ if (!m_is_input_complete_callback(this, lines,
+ m_is_input_complete_callback_baton)) {
+ return BreakLineCommand(ch);
+ }
- // If this is the end of the last line, consider whether to add a line instead
- const LineInfoW *info = el_wline(m_editline);
- if (m_current_line_index == m_input_lines.size() - 1 && info->cursor == info->lastchar)
- {
- if (m_is_input_complete_callback)
- {
- auto lines = GetInputAsStringList();
- if (!m_is_input_complete_callback(this, lines, m_is_input_complete_callback_baton))
- {
- return BreakLineCommand(ch);
- }
-
- // The completion test is allowed to change the input lines when complete
- m_input_lines.clear();
- for (unsigned index = 0; index < lines.GetSize(); index++)
- {
+ // The completion test is allowed to change the input lines when complete
+ m_input_lines.clear();
+ for (unsigned index = 0; index < lines.GetSize(); index++) {
#if LLDB_EDITLINE_USE_WCHAR
- m_input_lines.insert(m_input_lines.end(), m_utf8conv.from_bytes(lines[index]));
+ m_input_lines.insert(m_input_lines.end(),
+ m_utf8conv.from_bytes(lines[index]));
#else
- m_input_lines.insert(m_input_lines.end(), lines[index]);
+ m_input_lines.insert(m_input_lines.end(), lines[index]);
#endif
- }
- }
+ }
}
- MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockEnd);
- fprintf(m_output_file, "\n");
- m_editor_status = EditorStatus::Complete;
- return CC_NEWLINE;
-}
+ }
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockEnd);
+ fprintf(m_output_file, "\n");
+ m_editor_status = EditorStatus::Complete;
+ return CC_NEWLINE;
+}
+
+unsigned char Editline::DeleteNextCharCommand(int ch) {
+ LineInfoW *info = const_cast<LineInfoW *>(el_wline(m_editline));
+
+ // Just delete the next character normally if possible
+ if (info->cursor < info->lastchar) {
+ info->cursor++;
+ el_deletestr(m_editline, 1);
+ return CC_REFRESH;
+ }
-unsigned char
-Editline::DeleteNextCharCommand(int ch)
-{
- LineInfoW * info = const_cast<LineInfoW *>(el_wline (m_editline));
-
- // Just delete the next character normally if possible
- if (info->cursor < info->lastchar)
- {
- info->cursor++;
- el_deletestr (m_editline, 1);
- return CC_REFRESH;
- }
-
- // Fail when at the end of the last line, except when ^D is pressed on
- // the line is empty, in which case it is treated as EOF
- if (m_current_line_index == m_input_lines.size() - 1)
- {
- if (ch == 4 && info->buffer == info->lastchar)
- {
- fprintf (m_output_file, "^D\n");
- m_editor_status = EditorStatus::EndOfInput;
- return CC_EOF;
- }
- return CC_ERROR;
- }
-
- // Prepare to combine this line with the one below
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
-
- // Insert the next line of text at the cursor and restore the cursor position
- const EditLineCharType * cursor = info->cursor;
- el_winsertstr (m_editline, m_input_lines[m_current_line_index + 1].c_str());
- info->cursor = cursor;
- SaveEditedLine();
-
- // Delete the extra line
- m_input_lines.erase (m_input_lines.begin() + m_current_line_index + 1);
-
- // Clear and repaint from this line on down
- DisplayInput (m_current_line_index);
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::EditingCursor);
+ // Fail when at the end of the last line, except when ^D is pressed on
+ // the line is empty, in which case it is treated as EOF
+ if (m_current_line_index == m_input_lines.size() - 1) {
+ if (ch == 4 && info->buffer == info->lastchar) {
+ fprintf(m_output_file, "^D\n");
+ m_editor_status = EditorStatus::EndOfInput;
+ return CC_EOF;
+ }
+ return CC_ERROR;
+ }
+
+ // Prepare to combine this line with the one below
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
+
+ // Insert the next line of text at the cursor and restore the cursor position
+ const EditLineCharType *cursor = info->cursor;
+ el_winsertstr(m_editline, m_input_lines[m_current_line_index + 1].c_str());
+ info->cursor = cursor;
+ SaveEditedLine();
+
+ // Delete the extra line
+ m_input_lines.erase(m_input_lines.begin() + m_current_line_index + 1);
+
+ // Clear and repaint from this line on down
+ DisplayInput(m_current_line_index);
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingCursor);
+ return CC_REFRESH;
+}
+
+unsigned char Editline::DeletePreviousCharCommand(int ch) {
+ LineInfoW *info = const_cast<LineInfoW *>(el_wline(m_editline));
+
+ // Just delete the previous character normally when not at the start of a line
+ if (info->cursor > info->buffer) {
+ el_deletestr(m_editline, 1);
return CC_REFRESH;
-}
+ }
-unsigned char
-Editline::DeletePreviousCharCommand (int ch)
-{
- LineInfoW * info = const_cast<LineInfoW *>(el_wline (m_editline));
-
- // Just delete the previous character normally when not at the start of a line
- if (info->cursor > info->buffer)
- {
- el_deletestr (m_editline, 1);
- return CC_REFRESH;
- }
-
- // No prior line and no prior character? Let the user know
- if (m_current_line_index == 0)
- return CC_ERROR;
-
- // No prior character, but prior line? Combine with the line above
- SaveEditedLine();
- SetCurrentLine (m_current_line_index - 1);
- auto priorLine = m_input_lines[m_current_line_index];
- m_input_lines.erase (m_input_lines.begin() + m_current_line_index);
- m_input_lines[m_current_line_index] = priorLine + m_input_lines[m_current_line_index];
-
- // Repaint from the new line down
- fprintf (m_output_file, ANSI_UP_N_ROWS ANSI_SET_COLUMN_N, CountRowsForLine (priorLine), 1);
- DisplayInput (m_current_line_index);
-
- // Put the cursor back where libedit expects it to be before returning to editing
- // by telling libedit about the newly inserted text
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
- el_winsertstr (m_editline, priorLine.c_str());
- return CC_REDISPLAY;
+ // No prior line and no prior character? Let the user know
+ if (m_current_line_index == 0)
+ return CC_ERROR;
+
+ // No prior character, but prior line? Combine with the line above
+ SaveEditedLine();
+ SetCurrentLine(m_current_line_index - 1);
+ auto priorLine = m_input_lines[m_current_line_index];
+ m_input_lines.erase(m_input_lines.begin() + m_current_line_index);
+ m_input_lines[m_current_line_index] =
+ priorLine + m_input_lines[m_current_line_index];
+
+ // Repaint from the new line down
+ fprintf(m_output_file, ANSI_UP_N_ROWS ANSI_SET_COLUMN_N,
+ CountRowsForLine(priorLine), 1);
+ DisplayInput(m_current_line_index);
+
+ // Put the cursor back where libedit expects it to be before returning to
+ // editing
+ // by telling libedit about the newly inserted text
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
+ el_winsertstr(m_editline, priorLine.c_str());
+ return CC_REDISPLAY;
}
-unsigned char
-Editline::PreviousLineCommand (int ch)
-{
- SaveEditedLine();
+unsigned char Editline::PreviousLineCommand(int ch) {
+ SaveEditedLine();
- if (m_current_line_index == 0) {
- return RecallHistory (true);
- }
-
- // Start from a known location
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
-
- // Treat moving up from a blank last line as a deletion of that line
- if (m_current_line_index == m_input_lines.size() - 1 && IsOnlySpaces())
- {
- m_input_lines.erase (m_input_lines.begin() + m_current_line_index);
- fprintf (m_output_file, ANSI_CLEAR_BELOW);
- }
-
- SetCurrentLine (m_current_line_index - 1);
- fprintf (m_output_file, ANSI_UP_N_ROWS ANSI_SET_COLUMN_N,
- CountRowsForLine (m_input_lines[m_current_line_index]), 1);
- return CC_NEWLINE;
-}
-
-unsigned char
-Editline::NextLineCommand (int ch)
-{
- SaveEditedLine();
+ if (m_current_line_index == 0) {
+ return RecallHistory(true);
+ }
- // Handle attempts to move down from the last line
- if (m_current_line_index == m_input_lines.size() - 1)
- {
- // Don't add an extra line if the existing last line is blank, move through history instead
- if (IsOnlySpaces())
- {
- return RecallHistory (false);
- }
-
- // Determine indentation for the new line
- int indentation = 0;
- if (m_fix_indentation_callback)
- {
- StringList lines = GetInputAsStringList();
- lines.AppendString("");
- indentation = m_fix_indentation_callback (this, lines, 0, m_fix_indentation_callback_baton);
- }
- m_input_lines.insert (m_input_lines.end(), EditLineStringType (indentation, EditLineCharType(' ')));
- }
-
- // Move down past the current line using newlines to force scrolling if needed
- SetCurrentLine (m_current_line_index + 1);
- const LineInfoW * info = el_wline (m_editline);
- int cursor_position = (int)((info->cursor - info->buffer) + GetPromptWidth());
- int cursor_row = cursor_position / m_terminal_width;
- for (int line_count = 0; line_count < m_current_line_rows - cursor_row; line_count++)
- {
- fprintf (m_output_file, "\n");
- }
- return CC_NEWLINE;
-}
-
-unsigned char
-Editline::PreviousHistoryCommand(int ch)
-{
- SaveEditedLine();
+ // Start from a known location
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
- return RecallHistory(true);
+ // Treat moving up from a blank last line as a deletion of that line
+ if (m_current_line_index == m_input_lines.size() - 1 && IsOnlySpaces()) {
+ m_input_lines.erase(m_input_lines.begin() + m_current_line_index);
+ fprintf(m_output_file, ANSI_CLEAR_BELOW);
+ }
+
+ SetCurrentLine(m_current_line_index - 1);
+ fprintf(m_output_file, ANSI_UP_N_ROWS ANSI_SET_COLUMN_N,
+ CountRowsForLine(m_input_lines[m_current_line_index]), 1);
+ return CC_NEWLINE;
+}
+
+unsigned char Editline::NextLineCommand(int ch) {
+ SaveEditedLine();
+
+ // Handle attempts to move down from the last line
+ if (m_current_line_index == m_input_lines.size() - 1) {
+ // Don't add an extra line if the existing last line is blank, move through
+ // history instead
+ if (IsOnlySpaces()) {
+ return RecallHistory(false);
+ }
+
+ // Determine indentation for the new line
+ int indentation = 0;
+ if (m_fix_indentation_callback) {
+ StringList lines = GetInputAsStringList();
+ lines.AppendString("");
+ indentation = m_fix_indentation_callback(
+ this, lines, 0, m_fix_indentation_callback_baton);
+ }
+ m_input_lines.insert(
+ m_input_lines.end(),
+ EditLineStringType(indentation, EditLineCharType(' ')));
+ }
+
+ // Move down past the current line using newlines to force scrolling if needed
+ SetCurrentLine(m_current_line_index + 1);
+ const LineInfoW *info = el_wline(m_editline);
+ int cursor_position = (int)((info->cursor - info->buffer) + GetPromptWidth());
+ int cursor_row = cursor_position / m_terminal_width;
+ for (int line_count = 0; line_count < m_current_line_rows - cursor_row;
+ line_count++) {
+ fprintf(m_output_file, "\n");
+ }
+ return CC_NEWLINE;
}
-unsigned char
-Editline::NextHistoryCommand(int ch)
-{
- SaveEditedLine();
+unsigned char Editline::PreviousHistoryCommand(int ch) {
+ SaveEditedLine();
- return RecallHistory(false);
+ return RecallHistory(true);
}
-unsigned char
-Editline::FixIndentationCommand(int ch)
-{
- if (!m_fix_indentation_callback)
- return CC_NORM;
-
- // Insert the character typed before proceeding
- EditLineCharType inserted[] = { (EditLineCharType)ch, 0 };
- el_winsertstr (m_editline, inserted);
- LineInfoW * info = const_cast<LineInfoW *>(el_wline (m_editline));
- int cursor_position = info->cursor - info->buffer;
+unsigned char Editline::NextHistoryCommand(int ch) {
+ SaveEditedLine();
- // Save the edits and determine the correct indentation level
- SaveEditedLine();
- StringList lines = GetInputAsStringList (m_current_line_index + 1);
- int indent_correction = m_fix_indentation_callback (this, lines, cursor_position, m_fix_indentation_callback_baton);
+ return RecallHistory(false);
+}
- // If it is already correct no special work is needed
- if (indent_correction == 0)
- return CC_REFRESH;
-
- // Change the indentation level of the line
- std::string currentLine = lines.GetStringAtIndex (m_current_line_index);
- if (indent_correction > 0)
- {
- currentLine = currentLine.insert (0, indent_correction, ' ');
- }
- else
- {
- currentLine = currentLine.erase (0, -indent_correction);
- }
+unsigned char Editline::FixIndentationCommand(int ch) {
+ if (!m_fix_indentation_callback)
+ return CC_NORM;
+
+ // Insert the character typed before proceeding
+ EditLineCharType inserted[] = {(EditLineCharType)ch, 0};
+ el_winsertstr(m_editline, inserted);
+ LineInfoW *info = const_cast<LineInfoW *>(el_wline(m_editline));
+ int cursor_position = info->cursor - info->buffer;
+
+ // Save the edits and determine the correct indentation level
+ SaveEditedLine();
+ StringList lines = GetInputAsStringList(m_current_line_index + 1);
+ int indent_correction = m_fix_indentation_callback(
+ this, lines, cursor_position, m_fix_indentation_callback_baton);
+
+ // If it is already correct no special work is needed
+ if (indent_correction == 0)
+ return CC_REFRESH;
+
+ // Change the indentation level of the line
+ std::string currentLine = lines.GetStringAtIndex(m_current_line_index);
+ if (indent_correction > 0) {
+ currentLine = currentLine.insert(0, indent_correction, ' ');
+ } else {
+ currentLine = currentLine.erase(0, -indent_correction);
+ }
#if LLDB_EDITLINE_USE_WCHAR
- m_input_lines[m_current_line_index] = m_utf8conv.from_bytes (currentLine);
+ m_input_lines[m_current_line_index] = m_utf8conv.from_bytes(currentLine);
#else
- m_input_lines[m_current_line_index] = currentLine;
+ m_input_lines[m_current_line_index] = currentLine;
#endif
- // Update the display to reflect the change
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
- DisplayInput (m_current_line_index);
-
- // Reposition the cursor back on the original line and prepare to restart editing
- // with a new cursor position
- SetCurrentLine (m_current_line_index);
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
- m_revert_cursor_index = cursor_position + indent_correction;
- return CC_NEWLINE;
-}
-
-unsigned char
-Editline::RevertLineCommand (int ch)
-{
- el_winsertstr (m_editline, m_input_lines[m_current_line_index].c_str());
- if (m_revert_cursor_index >= 0)
- {
- LineInfoW * info = const_cast<LineInfoW *>(el_wline (m_editline));
- info->cursor = info->buffer + m_revert_cursor_index;
- if (info->cursor > info->lastchar)
- {
- info->cursor = info->lastchar;
- }
- m_revert_cursor_index = -1;
+ // Update the display to reflect the change
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::EditingPrompt);
+ DisplayInput(m_current_line_index);
+
+ // Reposition the cursor back on the original line and prepare to restart
+ // editing
+ // with a new cursor position
+ SetCurrentLine(m_current_line_index);
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
+ m_revert_cursor_index = cursor_position + indent_correction;
+ return CC_NEWLINE;
+}
+
+unsigned char Editline::RevertLineCommand(int ch) {
+ el_winsertstr(m_editline, m_input_lines[m_current_line_index].c_str());
+ if (m_revert_cursor_index >= 0) {
+ LineInfoW *info = const_cast<LineInfoW *>(el_wline(m_editline));
+ info->cursor = info->buffer + m_revert_cursor_index;
+ if (info->cursor > info->lastchar) {
+ info->cursor = info->lastchar;
}
- return CC_REFRESH;
-}
-
-unsigned char
-Editline::BufferStartCommand (int ch)
-{
- SaveEditedLine();
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::BlockStart);
- SetCurrentLine (0);
- m_revert_cursor_index = 0;
- return CC_NEWLINE;
+ m_revert_cursor_index = -1;
+ }
+ return CC_REFRESH;
}
-unsigned char
-Editline::BufferEndCommand (int ch)
-{
- SaveEditedLine();
- MoveCursor (CursorLocation::EditingCursor, CursorLocation::BlockEnd);
- SetCurrentLine ((int)m_input_lines.size() - 1);
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
- return CC_NEWLINE;
-}
+unsigned char Editline::BufferStartCommand(int ch) {
+ SaveEditedLine();
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockStart);
+ SetCurrentLine(0);
+ m_revert_cursor_index = 0;
+ return CC_NEWLINE;
+}
+
+unsigned char Editline::BufferEndCommand(int ch) {
+ SaveEditedLine();
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockEnd);
+ SetCurrentLine((int)m_input_lines.size() - 1);
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingPrompt);
+ return CC_NEWLINE;
+}
+
+unsigned char Editline::TabCommand(int ch) {
+ if (m_completion_callback == nullptr)
+ return CC_ERROR;
+
+ const LineInfo *line_info = el_line(m_editline);
+ StringList completions;
+ int page_size = 40;
+
+ const int num_completions = m_completion_callback(
+ line_info->buffer, line_info->cursor, line_info->lastchar,
+ 0, // Don't skip any matches (start at match zero)
+ -1, // Get all the matches
+ completions, m_completion_callback_baton);
+
+ if (num_completions == 0)
+ return CC_ERROR;
+ // if (num_completions == -1)
+ // {
+ // el_insertstr (m_editline, m_completion_key);
+ // return CC_REDISPLAY;
+ // }
+ // else
+ if (num_completions == -2) {
+ // Replace the entire line with the first string...
+ el_deletestr(m_editline, line_info->cursor - line_info->buffer);
+ el_insertstr(m_editline, completions.GetStringAtIndex(0));
+ return CC_REDISPLAY;
+ }
-unsigned char
-Editline::TabCommand (int ch)
-{
- if (m_completion_callback == nullptr)
- return CC_ERROR;
-
- const LineInfo *line_info = el_line (m_editline);
- StringList completions;
- int page_size = 40;
-
- const int num_completions = m_completion_callback (line_info->buffer,
- line_info->cursor,
- line_info->lastchar,
- 0, // Don't skip any matches (start at match zero)
- -1, // Get all the matches
- completions,
- m_completion_callback_baton);
-
- if (num_completions == 0)
- return CC_ERROR;
- // if (num_completions == -1)
- // {
- // el_insertstr (m_editline, m_completion_key);
- // return CC_REDISPLAY;
- // }
- // else
- if (num_completions == -2)
- {
- // Replace the entire line with the first string...
- el_deletestr (m_editline, line_info->cursor - line_info->buffer);
- el_insertstr (m_editline, completions.GetStringAtIndex (0));
- return CC_REDISPLAY;
- }
-
- // If we get a longer match display that first.
- const char *completion_str = completions.GetStringAtIndex (0);
- if (completion_str != nullptr && *completion_str != '\0')
- {
- el_insertstr (m_editline, completion_str);
- return CC_REDISPLAY;
- }
-
- if (num_completions > 1)
- {
- int num_elements = num_completions + 1;
- fprintf (m_output_file, "\n" ANSI_CLEAR_BELOW "Available completions:");
- if (num_completions < page_size)
- {
- for (int i = 1; i < num_elements; i++)
- {
- completion_str = completions.GetStringAtIndex (i);
- fprintf (m_output_file, "\n\t%s", completion_str);
- }
- fprintf (m_output_file, "\n");
- }
- else
- {
- int cur_pos = 1;
- char reply;
- int got_char;
- while (cur_pos < num_elements)
- {
- int endpoint = cur_pos + page_size;
- if (endpoint > num_elements)
- endpoint = num_elements;
- for (; cur_pos < endpoint; cur_pos++)
- {
- completion_str = completions.GetStringAtIndex (cur_pos);
- fprintf (m_output_file, "\n\t%s", completion_str);
- }
-
- if (cur_pos >= num_elements)
- {
- fprintf (m_output_file, "\n");
- break;
- }
-
- fprintf (m_output_file, "\nMore (Y/n/a): ");
- reply = 'n';
- got_char = el_getc(m_editline, &reply);
- if (got_char == -1 || reply == 'n')
- break;
- if (reply == 'a')
- page_size = num_elements - cur_pos;
- }
- }
- DisplayInput();
- MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingCursor);
- }
+ // If we get a longer match display that first.
+ const char *completion_str = completions.GetStringAtIndex(0);
+ if (completion_str != nullptr && *completion_str != '\0') {
+ el_insertstr(m_editline, completion_str);
return CC_REDISPLAY;
-}
+ }
-void
-Editline::ConfigureEditor (bool multiline)
-{
- if (m_editline && m_multiline_enabled == multiline)
- return;
- m_multiline_enabled = multiline;
-
- if (m_editline)
- {
- // Disable edit mode to stop the terminal from flushing all input
- // during the call to el_end() since we expect to have multiple editline
- // instances in this program.
- el_set (m_editline, EL_EDITMODE, 0);
- el_end (m_editline);
- }
-
- m_editline = el_init (m_editor_name.c_str(), m_input_file, m_output_file, m_error_file);
- TerminalSizeChanged();
-
- if (m_history_sp && m_history_sp->IsValid())
- {
- m_history_sp->Load();
- el_wset (m_editline, EL_HIST, history, m_history_sp->GetHistoryPtr());
- }
- el_set (m_editline, EL_CLIENTDATA, this);
- el_set (m_editline, EL_SIGNAL, 0);
- el_set (m_editline, EL_EDITOR, "emacs");
- el_set (m_editline, EL_PROMPT, (EditlinePromptCallbackType)([] (EditLine *editline) {
- return Editline::InstanceFor (editline)->Prompt();
- }));
-
- el_wset (m_editline, EL_GETCFN,
- (EditlineGetCharCallbackType)([] (EditLine * editline, EditLineCharType * c) {
- return Editline::InstanceFor (editline)->GetCharacter (c);
- }));
-
- // Commands used for multiline support, registered whether or not they're used
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-break-line"), EditLineConstString("Insert a line break"),
- (EditlineCommandCallbackType)(
- [](EditLine *editline, int ch) { return Editline::InstanceFor(editline)->BreakLineCommand(ch); }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-end-or-add-line"),
- EditLineConstString("End editing or continue when incomplete"),
- (EditlineCommandCallbackType)(
- [](EditLine *editline, int ch) { return Editline::InstanceFor(editline)->EndOrAddLineCommand(ch); }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-delete-next-char"),
- EditLineConstString("Delete next character"), (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
- return Editline::InstanceFor(editline)->DeleteNextCharCommand(ch);
- }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-delete-previous-char"),
- EditLineConstString("Delete previous character"),
- (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
- return Editline::InstanceFor(editline)->DeletePreviousCharCommand(ch);
- }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-previous-line"),
- EditLineConstString("Move to previous line"), (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
- return Editline::InstanceFor(editline)->PreviousLineCommand(ch);
- }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-next-line"), EditLineConstString("Move to next line"),
- (EditlineCommandCallbackType)(
- [](EditLine *editline, int ch) { return Editline::InstanceFor(editline)->NextLineCommand(ch); }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-previous-history"),
- EditLineConstString("Move to previous history"),
- (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
- return Editline::InstanceFor(editline)->PreviousHistoryCommand(ch);
- }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-next-history"), EditLineConstString("Move to next history"),
- (EditlineCommandCallbackType)(
- [](EditLine *editline, int ch) { return Editline::InstanceFor(editline)->NextHistoryCommand(ch); }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-buffer-start"),
- EditLineConstString("Move to start of buffer"),
- (EditlineCommandCallbackType)(
- [](EditLine *editline, int ch) { return Editline::InstanceFor(editline)->BufferStartCommand(ch); }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-buffer-end"), EditLineConstString("Move to end of buffer"),
- (EditlineCommandCallbackType)(
- [](EditLine *editline, int ch) { return Editline::InstanceFor(editline)->BufferEndCommand(ch); }));
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-fix-indentation"),
- EditLineConstString("Fix line indentation"), (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
- return Editline::InstanceFor (editline)->FixIndentationCommand (ch);
- }));
-
- // Register the complete callback under two names for compatibility with older clients using
- // custom .editrc files (largely because libedit has a bad bug where if you have a bind command
- // that tries to bind to a function name that doesn't exist, it can corrupt the heap and
- // crash your process later.)
- EditlineCommandCallbackType complete_callback = [] (EditLine * editline, int ch) {
- return Editline::InstanceFor (editline)->TabCommand (ch);
- };
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-complete"), EditLineConstString("Invoke completion"),
- complete_callback);
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb_complete"), EditLineConstString("Invoke completion"),
- complete_callback);
-
- // General bindings we don't mind being overridden
- if (!multiline) {
- el_set (m_editline, EL_BIND, "^r", "em-inc-search-prev", NULL); // Cycle through backwards search, entering string
- }
- el_set (m_editline, EL_BIND, "^w", "ed-delete-prev-word", NULL); // Delete previous word, behave like bash in emacs mode
- el_set (m_editline, EL_BIND, "\t", "lldb-complete", NULL); // Bind TAB to auto complete
-
- // Allow user-specific customization prior to registering bindings we absolutely require
- el_source (m_editline, NULL);
-
- // Register an internal binding that external developers shouldn't use
- el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-revert-line"),
- EditLineConstString("Revert line to saved state"),
- (EditlineCommandCallbackType)(
- [](EditLine *editline, int ch) { return Editline::InstanceFor(editline)->RevertLineCommand(ch); }));
-
- // Register keys that perform auto-indent correction
- if (m_fix_indentation_callback && m_fix_indentation_callback_chars)
- {
- char bind_key[2] = { 0, 0 };
- const char * indent_chars = m_fix_indentation_callback_chars;
- while (*indent_chars)
- {
- bind_key[0] = *indent_chars;
- el_set (m_editline, EL_BIND, bind_key, "lldb-fix-indentation", NULL);
- ++indent_chars;
- }
+ if (num_completions > 1) {
+ int num_elements = num_completions + 1;
+ fprintf(m_output_file, "\n" ANSI_CLEAR_BELOW "Available completions:");
+ if (num_completions < page_size) {
+ for (int i = 1; i < num_elements; i++) {
+ completion_str = completions.GetStringAtIndex(i);
+ fprintf(m_output_file, "\n\t%s", completion_str);
+ }
+ fprintf(m_output_file, "\n");
+ } else {
+ int cur_pos = 1;
+ char reply;
+ int got_char;
+ while (cur_pos < num_elements) {
+ int endpoint = cur_pos + page_size;
+ if (endpoint > num_elements)
+ endpoint = num_elements;
+ for (; cur_pos < endpoint; cur_pos++) {
+ completion_str = completions.GetStringAtIndex(cur_pos);
+ fprintf(m_output_file, "\n\t%s", completion_str);
+ }
+
+ if (cur_pos >= num_elements) {
+ fprintf(m_output_file, "\n");
+ break;
+ }
+
+ fprintf(m_output_file, "\nMore (Y/n/a): ");
+ reply = 'n';
+ got_char = el_getc(m_editline, &reply);
+ if (got_char == -1 || reply == 'n')
+ break;
+ if (reply == 'a')
+ page_size = num_elements - cur_pos;
+ }
}
-
- // Multi-line editor bindings
- if (multiline)
- {
- el_set(m_editline, EL_BIND, "\n", "lldb-end-or-add-line", NULL);
- el_set(m_editline, EL_BIND, "\r", "lldb-end-or-add-line", NULL);
- el_set(m_editline, EL_BIND, ESCAPE "\n", "lldb-break-line", NULL);
- el_set(m_editline, EL_BIND, ESCAPE "\r", "lldb-break-line", NULL);
- el_set (m_editline, EL_BIND, "^p", "lldb-previous-line", NULL);
- el_set (m_editline, EL_BIND, "^n", "lldb-next-line", NULL);
- el_set (m_editline, EL_BIND, "^?", "lldb-delete-previous-char", NULL);
- el_set (m_editline, EL_BIND, "^d", "lldb-delete-next-char", NULL);
- el_set (m_editline, EL_BIND, ESCAPE "[3~", "lldb-delete-next-char", NULL);
- el_set (m_editline, EL_BIND, ESCAPE "[\\^", "lldb-revert-line", NULL);
-
- // Editor-specific bindings
- if (IsEmacs())
- {
- el_set (m_editline, EL_BIND, ESCAPE "<", "lldb-buffer-start", NULL);
- el_set (m_editline, EL_BIND, ESCAPE ">", "lldb-buffer-end", NULL);
- el_set (m_editline, EL_BIND, ESCAPE "[A", "lldb-previous-line", NULL);
- el_set (m_editline, EL_BIND, ESCAPE "[B", "lldb-next-line", NULL);
- el_set(m_editline, EL_BIND, ESCAPE ESCAPE "[A", "lldb-previous-history", NULL);
- el_set(m_editline, EL_BIND, ESCAPE ESCAPE "[B", "lldb-next-history", NULL);
- el_set(m_editline, EL_BIND, ESCAPE "[1;3A", "lldb-previous-history", NULL);
- el_set(m_editline, EL_BIND, ESCAPE "[1;3B", "lldb-next-history", NULL);
- }
- else
- {
- el_set (m_editline, EL_BIND, "^H", "lldb-delete-previous-char", NULL);
-
- el_set (m_editline, EL_BIND, "-a", ESCAPE "[A", "lldb-previous-line", NULL);
- el_set (m_editline, EL_BIND, "-a", ESCAPE "[B", "lldb-next-line", NULL);
- el_set (m_editline, EL_BIND, "-a", "x", "lldb-delete-next-char", NULL);
- el_set (m_editline, EL_BIND, "-a", "^H", "lldb-delete-previous-char", NULL);
- el_set (m_editline, EL_BIND, "-a", "^?", "lldb-delete-previous-char", NULL);
-
- // Escape is absorbed exiting edit mode, so re-register important sequences
- // without the prefix
- el_set (m_editline, EL_BIND, "-a", "[A", "lldb-previous-line", NULL);
- el_set (m_editline, EL_BIND, "-a", "[B", "lldb-next-line", NULL);
- el_set (m_editline, EL_BIND, "-a", "[\\^", "lldb-revert-line", NULL);
- }
+ DisplayInput();
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingCursor);
+ }
+ return CC_REDISPLAY;
+}
+
+void Editline::ConfigureEditor(bool multiline) {
+ if (m_editline && m_multiline_enabled == multiline)
+ return;
+ m_multiline_enabled = multiline;
+
+ if (m_editline) {
+ // Disable edit mode to stop the terminal from flushing all input
+ // during the call to el_end() since we expect to have multiple editline
+ // instances in this program.
+ el_set(m_editline, EL_EDITMODE, 0);
+ el_end(m_editline);
+ }
+
+ m_editline =
+ el_init(m_editor_name.c_str(), m_input_file, m_output_file, m_error_file);
+ TerminalSizeChanged();
+
+ if (m_history_sp && m_history_sp->IsValid()) {
+ m_history_sp->Load();
+ el_wset(m_editline, EL_HIST, history, m_history_sp->GetHistoryPtr());
+ }
+ el_set(m_editline, EL_CLIENTDATA, this);
+ el_set(m_editline, EL_SIGNAL, 0);
+ el_set(m_editline, EL_EDITOR, "emacs");
+ el_set(m_editline, EL_PROMPT,
+ (EditlinePromptCallbackType)([](EditLine *editline) {
+ return Editline::InstanceFor(editline)->Prompt();
+ }));
+
+ el_wset(m_editline, EL_GETCFN, (EditlineGetCharCallbackType)([](
+ EditLine *editline, EditLineCharType *c) {
+ return Editline::InstanceFor(editline)->GetCharacter(c);
+ }));
+
+ // Commands used for multiline support, registered whether or not they're used
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-break-line"),
+ EditLineConstString("Insert a line break"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->BreakLineCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-end-or-add-line"),
+ EditLineConstString("End editing or continue when incomplete"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->EndOrAddLineCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-delete-next-char"),
+ EditLineConstString("Delete next character"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->DeleteNextCharCommand(ch);
+ }));
+ el_wset(
+ m_editline, EL_ADDFN, EditLineConstString("lldb-delete-previous-char"),
+ EditLineConstString("Delete previous character"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->DeletePreviousCharCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-previous-line"),
+ EditLineConstString("Move to previous line"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->PreviousLineCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-next-line"),
+ EditLineConstString("Move to next line"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->NextLineCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-previous-history"),
+ EditLineConstString("Move to previous history"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->PreviousHistoryCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-next-history"),
+ EditLineConstString("Move to next history"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->NextHistoryCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-buffer-start"),
+ EditLineConstString("Move to start of buffer"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->BufferStartCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-buffer-end"),
+ EditLineConstString("Move to end of buffer"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->BufferEndCommand(ch);
+ }));
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-fix-indentation"),
+ EditLineConstString("Fix line indentation"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->FixIndentationCommand(ch);
+ }));
+
+ // Register the complete callback under two names for compatibility with older
+ // clients using
+ // custom .editrc files (largely because libedit has a bad bug where if you
+ // have a bind command
+ // that tries to bind to a function name that doesn't exist, it can corrupt
+ // the heap and
+ // crash your process later.)
+ EditlineCommandCallbackType complete_callback = [](EditLine *editline,
+ int ch) {
+ return Editline::InstanceFor(editline)->TabCommand(ch);
+ };
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-complete"),
+ EditLineConstString("Invoke completion"), complete_callback);
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb_complete"),
+ EditLineConstString("Invoke completion"), complete_callback);
+
+ // General bindings we don't mind being overridden
+ if (!multiline) {
+ el_set(m_editline, EL_BIND, "^r", "em-inc-search-prev",
+ NULL); // Cycle through backwards search, entering string
+ }
+ el_set(m_editline, EL_BIND, "^w", "ed-delete-prev-word",
+ NULL); // Delete previous word, behave like bash in emacs mode
+ el_set(m_editline, EL_BIND, "\t", "lldb-complete",
+ NULL); // Bind TAB to auto complete
+
+ // Allow user-specific customization prior to registering bindings we
+ // absolutely require
+ el_source(m_editline, NULL);
+
+ // Register an internal binding that external developers shouldn't use
+ el_wset(m_editline, EL_ADDFN, EditLineConstString("lldb-revert-line"),
+ EditLineConstString("Revert line to saved state"),
+ (EditlineCommandCallbackType)([](EditLine *editline, int ch) {
+ return Editline::InstanceFor(editline)->RevertLineCommand(ch);
+ }));
+
+ // Register keys that perform auto-indent correction
+ if (m_fix_indentation_callback && m_fix_indentation_callback_chars) {
+ char bind_key[2] = {0, 0};
+ const char *indent_chars = m_fix_indentation_callback_chars;
+ while (*indent_chars) {
+ bind_key[0] = *indent_chars;
+ el_set(m_editline, EL_BIND, bind_key, "lldb-fix-indentation", NULL);
+ ++indent_chars;
+ }
+ }
+
+ // Multi-line editor bindings
+ if (multiline) {
+ el_set(m_editline, EL_BIND, "\n", "lldb-end-or-add-line", NULL);
+ el_set(m_editline, EL_BIND, "\r", "lldb-end-or-add-line", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "\n", "lldb-break-line", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "\r", "lldb-break-line", NULL);
+ el_set(m_editline, EL_BIND, "^p", "lldb-previous-line", NULL);
+ el_set(m_editline, EL_BIND, "^n", "lldb-next-line", NULL);
+ el_set(m_editline, EL_BIND, "^?", "lldb-delete-previous-char", NULL);
+ el_set(m_editline, EL_BIND, "^d", "lldb-delete-next-char", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "[3~", "lldb-delete-next-char", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "[\\^", "lldb-revert-line", NULL);
+
+ // Editor-specific bindings
+ if (IsEmacs()) {
+ el_set(m_editline, EL_BIND, ESCAPE "<", "lldb-buffer-start", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE ">", "lldb-buffer-end", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "[A", "lldb-previous-line", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "[B", "lldb-next-line", NULL);
+ el_set(m_editline, EL_BIND, ESCAPE ESCAPE "[A", "lldb-previous-history",
+ NULL);
+ el_set(m_editline, EL_BIND, ESCAPE ESCAPE "[B", "lldb-next-history",
+ NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "[1;3A", "lldb-previous-history",
+ NULL);
+ el_set(m_editline, EL_BIND, ESCAPE "[1;3B", "lldb-next-history", NULL);
+ } else {
+ el_set(m_editline, EL_BIND, "^H", "lldb-delete-previous-char", NULL);
+
+ el_set(m_editline, EL_BIND, "-a", ESCAPE "[A", "lldb-previous-line",
+ NULL);
+ el_set(m_editline, EL_BIND, "-a", ESCAPE "[B", "lldb-next-line", NULL);
+ el_set(m_editline, EL_BIND, "-a", "x", "lldb-delete-next-char", NULL);
+ el_set(m_editline, EL_BIND, "-a", "^H", "lldb-delete-previous-char",
+ NULL);
+ el_set(m_editline, EL_BIND, "-a", "^?", "lldb-delete-previous-char",
+ NULL);
+
+ // Escape is absorbed exiting edit mode, so re-register important
+ // sequences
+ // without the prefix
+ el_set(m_editline, EL_BIND, "-a", "[A", "lldb-previous-line", NULL);
+ el_set(m_editline, EL_BIND, "-a", "[B", "lldb-next-line", NULL);
+ el_set(m_editline, EL_BIND, "-a", "[\\^", "lldb-revert-line", NULL);
}
+ }
}
//------------------------------------------------------------------
// Editline public methods
//------------------------------------------------------------------
-Editline *
-Editline::InstanceFor (EditLine * editline)
-{
- Editline * editor;
- el_get (editline, EL_CLIENTDATA, &editor);
- return editor;
-}
-
-Editline::Editline (const char * editline_name, FILE * input_file, FILE * output_file, FILE * error_file, bool color_prompts) :
- m_editor_status (EditorStatus::Complete),
- m_color_prompts(color_prompts),
- m_input_file (input_file),
- m_output_file (output_file),
- m_error_file (error_file),
- m_input_connection (fileno(input_file), false)
-{
- // Get a shared history instance
- m_editor_name = (editline_name == nullptr) ? "lldb-tmp" : editline_name;
- m_history_sp = EditlineHistory::GetHistory (m_editor_name);
+Editline *Editline::InstanceFor(EditLine *editline) {
+ Editline *editor;
+ el_get(editline, EL_CLIENTDATA, &editor);
+ return editor;
+}
+
+Editline::Editline(const char *editline_name, FILE *input_file,
+ FILE *output_file, FILE *error_file, bool color_prompts)
+ : m_editor_status(EditorStatus::Complete), m_color_prompts(color_prompts),
+ m_input_file(input_file), m_output_file(output_file),
+ m_error_file(error_file), m_input_connection(fileno(input_file), false) {
+ // Get a shared history instance
+ m_editor_name = (editline_name == nullptr) ? "lldb-tmp" : editline_name;
+ m_history_sp = EditlineHistory::GetHistory(m_editor_name);
#ifdef USE_SETUPTERM_WORKAROUND
- if (m_output_file)
- {
- const int term_fd = fileno(m_output_file);
- if (term_fd != -1)
- {
- static std::mutex *g_init_terminal_fds_mutex_ptr = nullptr;
- static std::set<int> *g_init_terminal_fds_ptr = nullptr;
- static std::once_flag g_once_flag;
- std::call_once(g_once_flag, [&]() {
- g_init_terminal_fds_mutex_ptr = new std::mutex(); // NOTE: Leak to avoid C++ destructor chain issues
- g_init_terminal_fds_ptr = new std::set<int>(); // NOTE: Leak to avoid C++ destructor chain issues
- });
-
- // We must make sure to initialize the terminal a given file descriptor
- // only once. If we do this multiple times, we start leaking memory.
- std::lock_guard<std::mutex> guard(*g_init_terminal_fds_mutex_ptr);
- if (g_init_terminal_fds_ptr->find(term_fd) == g_init_terminal_fds_ptr->end())
- {
- g_init_terminal_fds_ptr->insert(term_fd);
- setupterm((char *)0, term_fd, (int *)0);
- }
- }
+ if (m_output_file) {
+ const int term_fd = fileno(m_output_file);
+ if (term_fd != -1) {
+ static std::mutex *g_init_terminal_fds_mutex_ptr = nullptr;
+ static std::set<int> *g_init_terminal_fds_ptr = nullptr;
+ static std::once_flag g_once_flag;
+ std::call_once(g_once_flag, [&]() {
+ g_init_terminal_fds_mutex_ptr =
+ new std::mutex(); // NOTE: Leak to avoid C++ destructor chain issues
+ g_init_terminal_fds_ptr = new std::set<int>(); // NOTE: Leak to avoid
+ // C++ destructor chain
+ // issues
+ });
+
+ // We must make sure to initialize the terminal a given file descriptor
+ // only once. If we do this multiple times, we start leaking memory.
+ std::lock_guard<std::mutex> guard(*g_init_terminal_fds_mutex_ptr);
+ if (g_init_terminal_fds_ptr->find(term_fd) ==
+ g_init_terminal_fds_ptr->end()) {
+ g_init_terminal_fds_ptr->insert(term_fd);
+ setupterm((char *)0, term_fd, (int *)0);
+ }
}
+ }
#endif
}
-Editline::~Editline()
-{
- if (m_editline)
- {
- // Disable edit mode to stop the terminal from flushing all input
- // during the call to el_end() since we expect to have multiple editline
- // instances in this program.
- el_set (m_editline, EL_EDITMODE, 0);
- el_end (m_editline);
- m_editline = nullptr;
- }
-
- // EditlineHistory objects are sometimes shared between multiple
- // Editline instances with the same program name. So just release
- // our shared pointer and if we are the last owner, it will save the
- // history to the history save file automatically.
- m_history_sp.reset();
-}
-
-void
-Editline::SetPrompt (const char * prompt)
-{
- m_set_prompt = prompt == nullptr ? "" : prompt;
-}
-
-void
-Editline::SetContinuationPrompt (const char * continuation_prompt)
-{
- m_set_continuation_prompt = continuation_prompt == nullptr ? "" : continuation_prompt;
-}
-
-void
-Editline::TerminalSizeChanged()
-{
- if (m_editline != nullptr)
- {
- el_resize (m_editline);
- int columns;
- // Despite the man page claiming non-zero indicates success, it's actually zero
- if (el_get (m_editline, EL_GETTC, "co", &columns) == 0)
- {
- m_terminal_width = columns;
- if (m_current_line_rows != -1)
- {
- const LineInfoW * info = el_wline (m_editline);
- int lineLength = (int)((info->lastchar - info->buffer) + GetPromptWidth());
- m_current_line_rows = (lineLength / columns) + 1;
- }
- }
- else
- {
- m_terminal_width = INT_MAX;
- m_current_line_rows = 1;
- }
- }
-}
+Editline::~Editline() {
+ if (m_editline) {
+ // Disable edit mode to stop the terminal from flushing all input
+ // during the call to el_end() since we expect to have multiple editline
+ // instances in this program.
+ el_set(m_editline, EL_EDITMODE, 0);
+ el_end(m_editline);
+ m_editline = nullptr;
+ }
+
+ // EditlineHistory objects are sometimes shared between multiple
+ // Editline instances with the same program name. So just release
+ // our shared pointer and if we are the last owner, it will save the
+ // history to the history save file automatically.
+ m_history_sp.reset();
+}
+
+void Editline::SetPrompt(const char *prompt) {
+ m_set_prompt = prompt == nullptr ? "" : prompt;
+}
+
+void Editline::SetContinuationPrompt(const char *continuation_prompt) {
+ m_set_continuation_prompt =
+ continuation_prompt == nullptr ? "" : continuation_prompt;
+}
+
+void Editline::TerminalSizeChanged() {
+ if (m_editline != nullptr) {
+ el_resize(m_editline);
+ int columns;
+ // Despite the man page claiming non-zero indicates success, it's actually
+ // zero
+ if (el_get(m_editline, EL_GETTC, "co", &columns) == 0) {
+ m_terminal_width = columns;
+ if (m_current_line_rows != -1) {
+ const LineInfoW *info = el_wline(m_editline);
+ int lineLength =
+ (int)((info->lastchar - info->buffer) + GetPromptWidth());
+ m_current_line_rows = (lineLength / columns) + 1;
+ }
+ } else {
+ m_terminal_width = INT_MAX;
+ m_current_line_rows = 1;
+ }
+ }
+}
+
+const char *Editline::GetPrompt() { return m_set_prompt.c_str(); }
+
+uint32_t Editline::GetCurrentLine() { return m_current_line_index; }
+
+bool Editline::Interrupt() {
+ bool result = true;
+ std::lock_guard<std::mutex> guard(m_output_mutex);
+ if (m_editor_status == EditorStatus::Editing) {
+ fprintf(m_output_file, "^C\n");
+ result = m_input_connection.InterruptRead();
+ }
+ m_editor_status = EditorStatus::Interrupted;
+ return result;
+}
+
+bool Editline::Cancel() {
+ bool result = true;
+ std::lock_guard<std::mutex> guard(m_output_mutex);
+ if (m_editor_status == EditorStatus::Editing) {
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockStart);
+ fprintf(m_output_file, ANSI_CLEAR_BELOW);
+ result = m_input_connection.InterruptRead();
+ }
+ m_editor_status = EditorStatus::Interrupted;
+ return result;
+}
+
+void Editline::SetAutoCompleteCallback(CompleteCallbackType callback,
+ void *baton) {
+ m_completion_callback = callback;
+ m_completion_callback_baton = baton;
+}
+
+void Editline::SetIsInputCompleteCallback(IsInputCompleteCallbackType callback,
+ void *baton) {
+ m_is_input_complete_callback = callback;
+ m_is_input_complete_callback_baton = baton;
+}
+
+bool Editline::SetFixIndentationCallback(FixIndentationCallbackType callback,
+ void *baton,
+ const char *indent_chars) {
+ m_fix_indentation_callback = callback;
+ m_fix_indentation_callback_baton = baton;
+ m_fix_indentation_callback_chars = indent_chars;
+ return false;
+}
+
+bool Editline::GetLine(std::string &line, bool &interrupted) {
+ ConfigureEditor(false);
+ m_input_lines = std::vector<EditLineStringType>();
+ m_input_lines.insert(m_input_lines.begin(), EditLineConstString(""));
-const char *
-Editline::GetPrompt()
-{
- return m_set_prompt.c_str();
-}
-
-uint32_t
-Editline::GetCurrentLine()
-{
- return m_current_line_index;
-}
-
-bool
-Editline::Interrupt()
-{
- bool result = true;
- std::lock_guard<std::mutex> guard(m_output_mutex);
- if (m_editor_status == EditorStatus::Editing) {
- fprintf(m_output_file, "^C\n");
- result = m_input_connection.InterruptRead();
- }
- m_editor_status = EditorStatus::Interrupted;
- return result;
-}
-
-bool
-Editline::Cancel()
-{
- bool result = true;
- std::lock_guard<std::mutex> guard(m_output_mutex);
- if (m_editor_status == EditorStatus::Editing) {
- MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockStart);
- fprintf(m_output_file, ANSI_CLEAR_BELOW);
- result = m_input_connection.InterruptRead();
- }
- m_editor_status = EditorStatus::Interrupted;
- return result;
-}
-
-void
-Editline::SetAutoCompleteCallback (CompleteCallbackType callback, void * baton)
-{
- m_completion_callback = callback;
- m_completion_callback_baton = baton;
-}
-
-void
-Editline::SetIsInputCompleteCallback (IsInputCompleteCallbackType callback, void * baton)
-{
- m_is_input_complete_callback = callback;
- m_is_input_complete_callback_baton = baton;
-}
-
-bool
-Editline::SetFixIndentationCallback (FixIndentationCallbackType callback,
- void * baton,
- const char * indent_chars)
-{
- m_fix_indentation_callback = callback;
- m_fix_indentation_callback_baton = baton;
- m_fix_indentation_callback_chars = indent_chars;
- return false;
-}
-
-bool
-Editline::GetLine (std::string &line, bool &interrupted)
-{
- ConfigureEditor (false);
- m_input_lines = std::vector<EditLineStringType>();
- m_input_lines.insert (m_input_lines.begin(), EditLineConstString(""));
-
- std::lock_guard<std::mutex> guard(m_output_mutex);
-
- lldbassert(m_editor_status != EditorStatus::Editing);
- if (m_editor_status == EditorStatus::Interrupted)
- {
- m_editor_status = EditorStatus::Complete;
- interrupted = true;
- return true;
- }
+ std::lock_guard<std::mutex> guard(m_output_mutex);
- SetCurrentLine (0);
- m_in_history = false;
- m_editor_status = EditorStatus::Editing;
- m_revert_cursor_index = -1;
-
- int count;
- auto input = el_wgets (m_editline, &count);
+ lldbassert(m_editor_status != EditorStatus::Editing);
+ if (m_editor_status == EditorStatus::Interrupted) {
+ m_editor_status = EditorStatus::Complete;
+ interrupted = true;
+ return true;
+ }
- interrupted = m_editor_status == EditorStatus::Interrupted;
- if (!interrupted)
- {
- if (input == nullptr)
- {
- fprintf (m_output_file, "\n");
- m_editor_status = EditorStatus::EndOfInput;
- }
- else
- {
- m_history_sp->Enter (input);
+ SetCurrentLine(0);
+ m_in_history = false;
+ m_editor_status = EditorStatus::Editing;
+ m_revert_cursor_index = -1;
+
+ int count;
+ auto input = el_wgets(m_editline, &count);
+
+ interrupted = m_editor_status == EditorStatus::Interrupted;
+ if (!interrupted) {
+ if (input == nullptr) {
+ fprintf(m_output_file, "\n");
+ m_editor_status = EditorStatus::EndOfInput;
+ } else {
+ m_history_sp->Enter(input);
#if LLDB_EDITLINE_USE_WCHAR
- line = m_utf8conv.to_bytes (SplitLines (input)[0]);
+ line = m_utf8conv.to_bytes(SplitLines(input)[0]);
#else
- line = SplitLines (input)[0];
+ line = SplitLines(input)[0];
#endif
- m_editor_status = EditorStatus::Complete;
- }
+ m_editor_status = EditorStatus::Complete;
}
- return m_editor_status != EditorStatus::EndOfInput;
+ }
+ return m_editor_status != EditorStatus::EndOfInput;
}
-bool
-Editline::GetLines (int first_line_number, StringList &lines, bool &interrupted)
-{
- ConfigureEditor (true);
-
- // Print the initial input lines, then move the cursor back up to the start of input
- SetBaseLineNumber (first_line_number);
- m_input_lines = std::vector<EditLineStringType>();
- m_input_lines.insert (m_input_lines.begin(), EditLineConstString(""));
+bool Editline::GetLines(int first_line_number, StringList &lines,
+ bool &interrupted) {
+ ConfigureEditor(true);
+
+ // Print the initial input lines, then move the cursor back up to the start of
+ // input
+ SetBaseLineNumber(first_line_number);
+ m_input_lines = std::vector<EditLineStringType>();
+ m_input_lines.insert(m_input_lines.begin(), EditLineConstString(""));
+
+ std::lock_guard<std::mutex> guard(m_output_mutex);
+ // Begin the line editing loop
+ DisplayInput();
+ SetCurrentLine(0);
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::BlockStart);
+ m_editor_status = EditorStatus::Editing;
+ m_in_history = false;
- std::lock_guard<std::mutex> guard(m_output_mutex);
- // Begin the line editing loop
+ m_revert_cursor_index = -1;
+ while (m_editor_status == EditorStatus::Editing) {
+ int count;
+ m_current_line_rows = -1;
+ el_wpush(m_editline, EditLineConstString(
+ "\x1b[^")); // Revert to the existing line content
+ el_wgets(m_editline, &count);
+ }
+
+ interrupted = m_editor_status == EditorStatus::Interrupted;
+ if (!interrupted) {
+ // Save the completed entry in history before returning
+ m_history_sp->Enter(CombineLines(m_input_lines).c_str());
+
+ lines = GetInputAsStringList();
+ }
+ return m_editor_status != EditorStatus::EndOfInput;
+}
+
+void Editline::PrintAsync(Stream *stream, const char *s, size_t len) {
+ std::lock_guard<std::mutex> guard(m_output_mutex);
+ if (m_editor_status == EditorStatus::Editing) {
+ MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockStart);
+ fprintf(m_output_file, ANSI_CLEAR_BELOW);
+ }
+ stream->Write(s, len);
+ stream->Flush();
+ if (m_editor_status == EditorStatus::Editing) {
DisplayInput();
- SetCurrentLine (0);
- MoveCursor (CursorLocation::BlockEnd, CursorLocation::BlockStart);
- m_editor_status = EditorStatus::Editing;
- m_in_history = false;
-
- m_revert_cursor_index = -1;
- while (m_editor_status == EditorStatus::Editing)
- {
- int count;
- m_current_line_rows = -1;
- el_wpush (m_editline, EditLineConstString("\x1b[^")); // Revert to the existing line content
- el_wgets (m_editline, &count);
- }
-
- interrupted = m_editor_status == EditorStatus::Interrupted;
- if (!interrupted)
- {
- // Save the completed entry in history before returning
- m_history_sp->Enter (CombineLines (m_input_lines).c_str());
-
- lines = GetInputAsStringList();
- }
- return m_editor_status != EditorStatus::EndOfInput;
-}
-
-void
-Editline::PrintAsync (Stream *stream, const char *s, size_t len)
-{
- std::lock_guard<std::mutex> guard(m_output_mutex);
- if (m_editor_status == EditorStatus::Editing)
- {
- MoveCursor(CursorLocation::EditingCursor, CursorLocation::BlockStart);
- fprintf(m_output_file, ANSI_CLEAR_BELOW);
- }
- stream->Write (s, len);
- stream->Flush();
- if (m_editor_status == EditorStatus::Editing)
- {
- DisplayInput();
- MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingCursor);
- }
+ MoveCursor(CursorLocation::BlockEnd, CursorLocation::EditingCursor);
+ }
}
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