[llvm] r196140 - DebugInfo: Rename DwarfCompileUnit.* to DwarfUnit.* to match their contents.
David Blaikie
dblaikie at gmail.com
Mon Dec 2 14:16:04 PST 2013
On Mon, Dec 2, 2013 at 2:01 PM, Eric Christopher <echristo at gmail.com> wrote:
>> -#include "DwarfCompileUnit.h"
>> +//#include "DwarfCompileUnit.h"
>
> Ahem. :)
Right - commented that out to see if there was actually a dependence
there, rather than just updating it to the new name. Forgot to remove
it once I had a clean build that showed it wasn't needed.
Removed in r196160.
Thanks,
- David
>
> -eric
>
>> #include "llvm/ADT/ArrayRef.h"
>> #include "llvm/ADT/StringRef.h"
>> #include "llvm/Support/Debug.h"
>>
>> Removed: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp?rev=196139&view=auto
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (removed)
>> @@ -1,1983 +0,0 @@
>> -//===-- llvm/CodeGen/DwarfUnit.cpp - Dwarf Type and Compile Units ---------===//
>> -//
>> -// The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>> -//===----------------------------------------------------------------------===//
>> -//
>> -// This file contains support for constructing a dwarf compile unit.
>> -//
>> -//===----------------------------------------------------------------------===//
>> -
>> -#define DEBUG_TYPE "dwarfdebug"
>> -
>> -#include "DwarfCompileUnit.h"
>> -#include "DwarfAccelTable.h"
>> -#include "DwarfDebug.h"
>> -#include "llvm/ADT/APFloat.h"
>> -#include "llvm/DIBuilder.h"
>> -#include "llvm/IR/Constants.h"
>> -#include "llvm/IR/DataLayout.h"
>> -#include "llvm/IR/GlobalVariable.h"
>> -#include "llvm/IR/Instructions.h"
>> -#include "llvm/MC/MCSection.h"
>> -#include "llvm/MC/MCStreamer.h"
>> -#include "llvm/Target/Mangler.h"
>> -#include "llvm/Target/TargetFrameLowering.h"
>> -#include "llvm/Target/TargetMachine.h"
>> -#include "llvm/Target/TargetLoweringObjectFile.h"
>> -#include "llvm/Target/TargetRegisterInfo.h"
>> -#include "llvm/Support/CommandLine.h"
>> -
>> -using namespace llvm;
>> -
>> -static cl::opt<bool> GenerateTypeUnits("generate-type-units", cl::Hidden,
>> - cl::desc("Generate DWARF4 type units."),
>> - cl::init(false));
>> -
>> -/// Unit - Compile unit constructor.
>> -Unit::Unit(unsigned UID, DIE *D, DICompileUnit Node, AsmPrinter *A,
>> - DwarfDebug *DW, DwarfUnits *DWU)
>> - : UniqueID(UID), Node(Node), CUDie(D), DebugInfoOffset(0), Asm(A), DD(DW),
>> - DU(DWU), IndexTyDie(0) {
>> - DIEIntegerOne = new (DIEValueAllocator) DIEInteger(1);
>> -}
>> -
>> -CompileUnit::CompileUnit(unsigned UID, DIE *D, DICompileUnit Node,
>> - AsmPrinter *A, DwarfDebug *DW, DwarfUnits *DWU)
>> - : Unit(UID, D, Node, A, DW, DWU) {
>> - insertDIE(Node, D);
>> -}
>> -
>> -TypeUnit::TypeUnit(unsigned UID, DIE *D, uint16_t Language, AsmPrinter *A,
>> - DwarfDebug *DW, DwarfUnits *DWU)
>> - : Unit(UID, D, DICompileUnit(), A, DW, DWU), Language(Language) {}
>> -
>> -/// ~Unit - Destructor for compile unit.
>> -Unit::~Unit() {
>> - for (unsigned j = 0, M = DIEBlocks.size(); j < M; ++j)
>> - DIEBlocks[j]->~DIEBlock();
>> -}
>> -
>> -/// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug
>> -/// information entry.
>> -DIEEntry *Unit::createDIEEntry(DIE *Entry) {
>> - DIEEntry *Value = new (DIEValueAllocator) DIEEntry(Entry);
>> - return Value;
>> -}
>> -
>> -/// getDefaultLowerBound - Return the default lower bound for an array. If the
>> -/// DWARF version doesn't handle the language, return -1.
>> -int64_t Unit::getDefaultLowerBound() const {
>> - switch (getLanguage()) {
>> - default:
>> - break;
>> -
>> - case dwarf::DW_LANG_C89:
>> - case dwarf::DW_LANG_C99:
>> - case dwarf::DW_LANG_C:
>> - case dwarf::DW_LANG_C_plus_plus:
>> - case dwarf::DW_LANG_ObjC:
>> - case dwarf::DW_LANG_ObjC_plus_plus:
>> - return 0;
>> -
>> - case dwarf::DW_LANG_Fortran77:
>> - case dwarf::DW_LANG_Fortran90:
>> - case dwarf::DW_LANG_Fortran95:
>> - return 1;
>> -
>> - // The languages below have valid values only if the DWARF version >= 4.
>> - case dwarf::DW_LANG_Java:
>> - case dwarf::DW_LANG_Python:
>> - case dwarf::DW_LANG_UPC:
>> - case dwarf::DW_LANG_D:
>> - if (dwarf::DWARF_VERSION >= 4)
>> - return 0;
>> - break;
>> -
>> - case dwarf::DW_LANG_Ada83:
>> - case dwarf::DW_LANG_Ada95:
>> - case dwarf::DW_LANG_Cobol74:
>> - case dwarf::DW_LANG_Cobol85:
>> - case dwarf::DW_LANG_Modula2:
>> - case dwarf::DW_LANG_Pascal83:
>> - case dwarf::DW_LANG_PLI:
>> - if (dwarf::DWARF_VERSION >= 4)
>> - return 1;
>> - break;
>> - }
>> -
>> - return -1;
>> -}
>> -
>> -/// Check whether the DIE for this MDNode can be shared across CUs.
>> -static bool isShareableAcrossCUs(DIDescriptor D) {
>> - // When the MDNode can be part of the type system, the DIE can be shared
>> - // across CUs.
>> - // Combining type units and cross-CU DIE sharing is lower value (since
>> - // cross-CU DIE sharing is used in LTO and removes type redundancy at that
>> - // level already) but may be implementable for some value in projects
>> - // building multiple independent libraries with LTO and then linking those
>> - // together.
>> - return (D.isType() ||
>> - (D.isSubprogram() && !DISubprogram(D).isDefinition())) &&
>> - !GenerateTypeUnits;
>> -}
>> -
>> -/// getDIE - Returns the debug information entry map slot for the
>> -/// specified debug variable. We delegate the request to DwarfDebug
>> -/// when the DIE for this MDNode can be shared across CUs. The mappings
>> -/// will be kept in DwarfDebug for shareable DIEs.
>> -DIE *Unit::getDIE(DIDescriptor D) const {
>> - if (isShareableAcrossCUs(D))
>> - return DD->getDIE(D);
>> - return MDNodeToDieMap.lookup(D);
>> -}
>> -
>> -/// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
>> -/// when the DIE for this MDNode can be shared across CUs. The mappings
>> -/// will be kept in DwarfDebug for shareable DIEs.
>> -void Unit::insertDIE(DIDescriptor Desc, DIE *D) {
>> - if (isShareableAcrossCUs(Desc)) {
>> - DD->insertDIE(Desc, D);
>> - return;
>> - }
>> - MDNodeToDieMap.insert(std::make_pair(Desc, D));
>> -}
>> -
>> -/// addFlag - Add a flag that is true.
>> -void Unit::addFlag(DIE *Die, dwarf::Attribute Attribute) {
>> - if (DD->getDwarfVersion() >= 4)
>> - Die->addValue(Attribute, dwarf::DW_FORM_flag_present, DIEIntegerOne);
>> - else
>> - Die->addValue(Attribute, dwarf::DW_FORM_flag, DIEIntegerOne);
>> -}
>> -
>> -/// addUInt - Add an unsigned integer attribute data and value.
>> -///
>> -void Unit::addUInt(DIE *Die, dwarf::Attribute Attribute,
>> - Optional<dwarf::Form> Form, uint64_t Integer) {
>> - if (!Form)
>> - Form = DIEInteger::BestForm(false, Integer);
>> - DIEValue *Value = Integer == 1 ? DIEIntegerOne : new (DIEValueAllocator)
>> - DIEInteger(Integer);
>> - Die->addValue(Attribute, *Form, Value);
>> -}
>> -
>> -void Unit::addUInt(DIEBlock *Block, dwarf::Form Form, uint64_t Integer) {
>> - addUInt(Block, (dwarf::Attribute)0, Form, Integer);
>> -}
>> -
>> -/// addSInt - Add an signed integer attribute data and value.
>> -///
>> -void Unit::addSInt(DIE *Die, dwarf::Attribute Attribute,
>> - Optional<dwarf::Form> Form, int64_t Integer) {
>> - if (!Form)
>> - Form = DIEInteger::BestForm(true, Integer);
>> - DIEValue *Value = new (DIEValueAllocator) DIEInteger(Integer);
>> - Die->addValue(Attribute, *Form, Value);
>> -}
>> -
>> -void Unit::addSInt(DIEBlock *Die, Optional<dwarf::Form> Form, int64_t Integer) {
>> - addSInt(Die, (dwarf::Attribute)0, Form, Integer);
>> -}
>> -
>> -/// addString - Add a string attribute data and value. We always emit a
>> -/// reference to the string pool instead of immediate strings so that DIEs have
>> -/// more predictable sizes. In the case of split dwarf we emit an index
>> -/// into another table which gets us the static offset into the string
>> -/// table.
>> -void Unit::addString(DIE *Die, dwarf::Attribute Attribute, StringRef String) {
>> - DIEValue *Value;
>> - dwarf::Form Form;
>> - if (!DD->useSplitDwarf()) {
>> - MCSymbol *Symb = DU->getStringPoolEntry(String);
>> - if (Asm->needsRelocationsForDwarfStringPool())
>> - Value = new (DIEValueAllocator) DIELabel(Symb);
>> - else {
>> - MCSymbol *StringPool = DU->getStringPoolSym();
>> - Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool);
>> - }
>> - Form = dwarf::DW_FORM_strp;
>> - } else {
>> - unsigned idx = DU->getStringPoolIndex(String);
>> - Value = new (DIEValueAllocator) DIEInteger(idx);
>> - Form = dwarf::DW_FORM_GNU_str_index;
>> - }
>> - DIEValue *Str = new (DIEValueAllocator) DIEString(Value, String);
>> - Die->addValue(Attribute, Form, Str);
>> -}
>> -
>> -/// addLocalString - Add a string attribute data and value. This is guaranteed
>> -/// to be in the local string pool instead of indirected.
>> -void Unit::addLocalString(DIE *Die, dwarf::Attribute Attribute,
>> - StringRef String) {
>> - MCSymbol *Symb = DU->getStringPoolEntry(String);
>> - DIEValue *Value;
>> - if (Asm->needsRelocationsForDwarfStringPool())
>> - Value = new (DIEValueAllocator) DIELabel(Symb);
>> - else {
>> - MCSymbol *StringPool = DU->getStringPoolSym();
>> - Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool);
>> - }
>> - Die->addValue(Attribute, dwarf::DW_FORM_strp, Value);
>> -}
>> -
>> -/// addExpr - Add a Dwarf expression attribute data and value.
>> -///
>> -void Unit::addExpr(DIEBlock *Die, dwarf::Form Form, const MCExpr *Expr) {
>> - DIEValue *Value = new (DIEValueAllocator) DIEExpr(Expr);
>> - Die->addValue((dwarf::Attribute)0, Form, Value);
>> -}
>> -
>> -/// addLabel - Add a Dwarf label attribute data and value.
>> -///
>> -void Unit::addLabel(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form,
>> - const MCSymbol *Label) {
>> - DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
>> - Die->addValue(Attribute, Form, Value);
>> -}
>> -
>> -void Unit::addLabel(DIEBlock *Die, dwarf::Form Form, const MCSymbol *Label) {
>> - addLabel(Die, (dwarf::Attribute)0, Form, Label);
>> -}
>> -
>> -/// addSectionLabel - Add a Dwarf section label attribute data and value.
>> -///
>> -void Unit::addSectionLabel(DIE *Die, dwarf::Attribute Attribute,
>> - const MCSymbol *Label) {
>> - if (DD->getDwarfVersion() >= 4)
>> - addLabel(Die, Attribute, dwarf::DW_FORM_sec_offset, Label);
>> - else
>> - addLabel(Die, Attribute, dwarf::DW_FORM_data4, Label);
>> -}
>> -
>> -/// addSectionOffset - Add an offset into a section attribute data and value.
>> -///
>> -void Unit::addSectionOffset(DIE *Die, dwarf::Attribute Attribute,
>> - uint64_t Integer) {
>> - if (DD->getDwarfVersion() >= 4)
>> - addUInt(Die, Attribute, dwarf::DW_FORM_sec_offset, Integer);
>> - else
>> - addUInt(Die, Attribute, dwarf::DW_FORM_data4, Integer);
>> -}
>> -
>> -/// addLabelAddress - Add a dwarf label attribute data and value using
>> -/// DW_FORM_addr or DW_FORM_GNU_addr_index.
>> -///
>> -void CompileUnit::addLabelAddress(DIE *Die, dwarf::Attribute Attribute,
>> - MCSymbol *Label) {
>> - if (Label)
>> - DD->addArangeLabel(SymbolCU(this, Label));
>> -
>> - if (!DD->useSplitDwarf()) {
>> - if (Label != NULL) {
>> - DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
>> - Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
>> - } else {
>> - DIEValue *Value = new (DIEValueAllocator) DIEInteger(0);
>> - Die->addValue(Attribute, dwarf::DW_FORM_addr, Value);
>> - }
>> - } else {
>> - unsigned idx = DU->getAddrPoolIndex(Label);
>> - DIEValue *Value = new (DIEValueAllocator) DIEInteger(idx);
>> - Die->addValue(Attribute, dwarf::DW_FORM_GNU_addr_index, Value);
>> - }
>> -}
>> -
>> -/// addOpAddress - Add a dwarf op address data and value using the
>> -/// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index.
>> -///
>> -void Unit::addOpAddress(DIEBlock *Die, const MCSymbol *Sym) {
>> - if (!DD->useSplitDwarf()) {
>> - addUInt(Die, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
>> - addLabel(Die, dwarf::DW_FORM_udata, Sym);
>> - } else {
>> - addUInt(Die, dwarf::DW_FORM_data1, dwarf::DW_OP_GNU_addr_index);
>> - addUInt(Die, dwarf::DW_FORM_GNU_addr_index, DU->getAddrPoolIndex(Sym));
>> - }
>> -}
>> -
>> -/// addSectionDelta - Add a section label delta attribute data and value.
>> -///
>> -void Unit::addSectionDelta(DIE *Die, dwarf::Attribute Attribute,
>> - const MCSymbol *Hi, const MCSymbol *Lo) {
>> - DIEValue *Value = new (DIEValueAllocator) DIEDelta(Hi, Lo);
>> - if (DD->getDwarfVersion() >= 4)
>> - Die->addValue(Attribute, dwarf::DW_FORM_sec_offset, Value);
>> - else
>> - Die->addValue(Attribute, dwarf::DW_FORM_data4, Value);
>> -}
>> -
>> -/// addDIEEntry - Add a DIE attribute data and value.
>> -///
>> -void Unit::addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIE *Entry) {
>> - addDIEEntry(Die, Attribute, createDIEEntry(Entry));
>> -}
>> -
>> -void Unit::addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIEEntry *Entry) {
>> - const DIE *DieCU = Die->getUnitOrNull();
>> - const DIE *EntryCU = Entry->getEntry()->getUnitOrNull();
>> - if (!DieCU)
>> - // We assume that Die belongs to this CU, if it is not linked to any CU yet.
>> - DieCU = getCUDie();
>> - if (!EntryCU)
>> - EntryCU = getCUDie();
>> - Die->addValue(Attribute, EntryCU == DieCU ? dwarf::DW_FORM_ref4
>> - : dwarf::DW_FORM_ref_addr,
>> - Entry);
>> -}
>> -
>> -/// Create a DIE with the given Tag, add the DIE to its parent, and
>> -/// call insertDIE if MD is not null.
>> -DIE *Unit::createAndAddDIE(unsigned Tag, DIE &Parent, DIDescriptor N) {
>> - DIE *Die = new DIE(Tag);
>> - Parent.addChild(Die);
>> - if (N)
>> - insertDIE(N, Die);
>> - return Die;
>> -}
>> -
>> -/// addBlock - Add block data.
>> -///
>> -void Unit::addBlock(DIE *Die, dwarf::Attribute Attribute, DIEBlock *Block) {
>> - Block->ComputeSize(Asm);
>> - DIEBlocks.push_back(Block); // Memoize so we can call the destructor later on.
>> - Die->addValue(Attribute, Block->BestForm(), Block);
>> -}
>> -
>> -/// addSourceLine - Add location information to specified debug information
>> -/// entry.
>> -void Unit::addSourceLine(DIE *Die, DIVariable V) {
>> - // Verify variable.
>> - if (!V.isVariable())
>> - return;
>> -
>> - unsigned Line = V.getLineNumber();
>> - if (Line == 0)
>> - return;
>> - unsigned FileID =
>> - DD->getOrCreateSourceID(V.getContext().getFilename(),
>> - V.getContext().getDirectory(), getUniqueID());
>> - assert(FileID && "Invalid file id");
>> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
>> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
>> -}
>> -
>> -/// addSourceLine - Add location information to specified debug information
>> -/// entry.
>> -void Unit::addSourceLine(DIE *Die, DIGlobalVariable G) {
>> - // Verify global variable.
>> - if (!G.isGlobalVariable())
>> - return;
>> -
>> - unsigned Line = G.getLineNumber();
>> - if (Line == 0)
>> - return;
>> - unsigned FileID =
>> - DD->getOrCreateSourceID(G.getFilename(), G.getDirectory(), getUniqueID());
>> - assert(FileID && "Invalid file id");
>> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
>> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
>> -}
>> -
>> -/// addSourceLine - Add location information to specified debug information
>> -/// entry.
>> -void Unit::addSourceLine(DIE *Die, DISubprogram SP) {
>> - // Verify subprogram.
>> - if (!SP.isSubprogram())
>> - return;
>> -
>> - // If the line number is 0, don't add it.
>> - unsigned Line = SP.getLineNumber();
>> - if (Line == 0)
>> - return;
>> -
>> - unsigned FileID = DD->getOrCreateSourceID(SP.getFilename(), SP.getDirectory(),
>> - getUniqueID());
>> - assert(FileID && "Invalid file id");
>> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
>> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
>> -}
>> -
>> -/// addSourceLine - Add location information to specified debug information
>> -/// entry.
>> -void Unit::addSourceLine(DIE *Die, DIType Ty) {
>> - // Verify type.
>> - if (!Ty.isType())
>> - return;
>> -
>> - unsigned Line = Ty.getLineNumber();
>> - if (Line == 0)
>> - return;
>> - unsigned FileID = DD->getOrCreateSourceID(Ty.getFilename(), Ty.getDirectory(),
>> - getUniqueID());
>> - assert(FileID && "Invalid file id");
>> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
>> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
>> -}
>> -
>> -/// addSourceLine - Add location information to specified debug information
>> -/// entry.
>> -void Unit::addSourceLine(DIE *Die, DIObjCProperty Ty) {
>> - // Verify type.
>> - if (!Ty.isObjCProperty())
>> - return;
>> -
>> - unsigned Line = Ty.getLineNumber();
>> - if (Line == 0)
>> - return;
>> - DIFile File = Ty.getFile();
>> - unsigned FileID = DD->getOrCreateSourceID(File.getFilename(),
>> - File.getDirectory(), getUniqueID());
>> - assert(FileID && "Invalid file id");
>> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
>> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
>> -}
>> -
>> -/// addSourceLine - Add location information to specified debug information
>> -/// entry.
>> -void Unit::addSourceLine(DIE *Die, DINameSpace NS) {
>> - // Verify namespace.
>> - if (!NS.Verify())
>> - return;
>> -
>> - unsigned Line = NS.getLineNumber();
>> - if (Line == 0)
>> - return;
>> - StringRef FN = NS.getFilename();
>> -
>> - unsigned FileID =
>> - DD->getOrCreateSourceID(FN, NS.getDirectory(), getUniqueID());
>> - assert(FileID && "Invalid file id");
>> - addUInt(Die, dwarf::DW_AT_decl_file, None, FileID);
>> - addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
>> -}
>> -
>> -/// addVariableAddress - Add DW_AT_location attribute for a
>> -/// DbgVariable based on provided MachineLocation.
>> -void Unit::addVariableAddress(const DbgVariable &DV, DIE *Die,
>> - MachineLocation Location) {
>> - if (DV.variableHasComplexAddress())
>> - addComplexAddress(DV, Die, dwarf::DW_AT_location, Location);
>> - else if (DV.isBlockByrefVariable())
>> - addBlockByrefAddress(DV, Die, dwarf::DW_AT_location, Location);
>> - else
>> - addAddress(Die, dwarf::DW_AT_location, Location,
>> - DV.getVariable().isIndirect());
>> -}
>> -
>> -/// addRegisterOp - Add register operand.
>> -void Unit::addRegisterOp(DIEBlock *TheDie, unsigned Reg) {
>> - const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
>> - unsigned DWReg = RI->getDwarfRegNum(Reg, false);
>> - if (DWReg < 32)
>> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_reg0 + DWReg);
>> - else {
>> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_regx);
>> - addUInt(TheDie, dwarf::DW_FORM_udata, DWReg);
>> - }
>> -}
>> -
>> -/// addRegisterOffset - Add register offset.
>> -void Unit::addRegisterOffset(DIEBlock *TheDie, unsigned Reg, int64_t Offset) {
>> - const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
>> - unsigned DWReg = RI->getDwarfRegNum(Reg, false);
>> - const TargetRegisterInfo *TRI = Asm->TM.getRegisterInfo();
>> - if (Reg == TRI->getFrameRegister(*Asm->MF))
>> - // If variable offset is based in frame register then use fbreg.
>> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_fbreg);
>> - else if (DWReg < 32)
>> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_breg0 + DWReg);
>> - else {
>> - addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_bregx);
>> - addUInt(TheDie, dwarf::DW_FORM_udata, DWReg);
>> - }
>> - addSInt(TheDie, dwarf::DW_FORM_sdata, Offset);
>> -}
>> -
>> -/// addAddress - Add an address attribute to a die based on the location
>> -/// provided.
>> -void Unit::addAddress(DIE *Die, dwarf::Attribute Attribute,
>> - const MachineLocation &Location, bool Indirect) {
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> -
>> - if (Location.isReg() && !Indirect)
>> - addRegisterOp(Block, Location.getReg());
>> - else {
>> - addRegisterOffset(Block, Location.getReg(), Location.getOffset());
>> - if (Indirect && !Location.isReg()) {
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
>> - }
>> - }
>> -
>> - // Now attach the location information to the DIE.
>> - addBlock(Die, Attribute, Block);
>> -}
>> -
>> -/// addComplexAddress - Start with the address based on the location provided,
>> -/// and generate the DWARF information necessary to find the actual variable
>> -/// given the extra address information encoded in the DIVariable, starting from
>> -/// the starting location. Add the DWARF information to the die.
>> -///
>> -void Unit::addComplexAddress(const DbgVariable &DV, DIE *Die,
>> - dwarf::Attribute Attribute,
>> - const MachineLocation &Location) {
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> - unsigned N = DV.getNumAddrElements();
>> - unsigned i = 0;
>> - if (Location.isReg()) {
>> - if (N >= 2 && DV.getAddrElement(0) == DIBuilder::OpPlus) {
>> - // If first address element is OpPlus then emit
>> - // DW_OP_breg + Offset instead of DW_OP_reg + Offset.
>> - addRegisterOffset(Block, Location.getReg(), DV.getAddrElement(1));
>> - i = 2;
>> - } else
>> - addRegisterOp(Block, Location.getReg());
>> - } else
>> - addRegisterOffset(Block, Location.getReg(), Location.getOffset());
>> -
>> - for (; i < N; ++i) {
>> - uint64_t Element = DV.getAddrElement(i);
>> - if (Element == DIBuilder::OpPlus) {
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
>> - addUInt(Block, dwarf::DW_FORM_udata, DV.getAddrElement(++i));
>> - } else if (Element == DIBuilder::OpDeref) {
>> - if (!Location.isReg())
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
>> - } else
>> - llvm_unreachable("unknown DIBuilder Opcode");
>> - }
>> -
>> - // Now attach the location information to the DIE.
>> - addBlock(Die, Attribute, Block);
>> -}
>> -
>> -/* Byref variables, in Blocks, are declared by the programmer as "SomeType
>> - VarName;", but the compiler creates a __Block_byref_x_VarName struct, and
>> - gives the variable VarName either the struct, or a pointer to the struct, as
>> - its type. This is necessary for various behind-the-scenes things the
>> - compiler needs to do with by-reference variables in Blocks.
>> -
>> - However, as far as the original *programmer* is concerned, the variable
>> - should still have type 'SomeType', as originally declared.
>> -
>> - The function getBlockByrefType dives into the __Block_byref_x_VarName
>> - struct to find the original type of the variable, which is then assigned to
>> - the variable's Debug Information Entry as its real type. So far, so good.
>> - However now the debugger will expect the variable VarName to have the type
>> - SomeType. So we need the location attribute for the variable to be an
>> - expression that explains to the debugger how to navigate through the
>> - pointers and struct to find the actual variable of type SomeType.
>> -
>> - The following function does just that. We start by getting
>> - the "normal" location for the variable. This will be the location
>> - of either the struct __Block_byref_x_VarName or the pointer to the
>> - struct __Block_byref_x_VarName.
>> -
>> - The struct will look something like:
>> -
>> - struct __Block_byref_x_VarName {
>> - ... <various fields>
>> - struct __Block_byref_x_VarName *forwarding;
>> - ... <various other fields>
>> - SomeType VarName;
>> - ... <maybe more fields>
>> - };
>> -
>> - If we are given the struct directly (as our starting point) we
>> - need to tell the debugger to:
>> -
>> - 1). Add the offset of the forwarding field.
>> -
>> - 2). Follow that pointer to get the real __Block_byref_x_VarName
>> - struct to use (the real one may have been copied onto the heap).
>> -
>> - 3). Add the offset for the field VarName, to find the actual variable.
>> -
>> - If we started with a pointer to the struct, then we need to
>> - dereference that pointer first, before the other steps.
>> - Translating this into DWARF ops, we will need to append the following
>> - to the current location description for the variable:
>> -
>> - DW_OP_deref -- optional, if we start with a pointer
>> - DW_OP_plus_uconst <forward_fld_offset>
>> - DW_OP_deref
>> - DW_OP_plus_uconst <varName_fld_offset>
>> -
>> - That is what this function does. */
>> -
>> -/// addBlockByrefAddress - Start with the address based on the location
>> -/// provided, and generate the DWARF information necessary to find the
>> -/// actual Block variable (navigating the Block struct) based on the
>> -/// starting location. Add the DWARF information to the die. For
>> -/// more information, read large comment just above here.
>> -///
>> -void Unit::addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
>> - dwarf::Attribute Attribute,
>> - const MachineLocation &Location) {
>> - DIType Ty = DV.getType();
>> - DIType TmpTy = Ty;
>> - uint16_t Tag = Ty.getTag();
>> - bool isPointer = false;
>> -
>> - StringRef varName = DV.getName();
>> -
>> - if (Tag == dwarf::DW_TAG_pointer_type) {
>> - DIDerivedType DTy(Ty);
>> - TmpTy = resolve(DTy.getTypeDerivedFrom());
>> - isPointer = true;
>> - }
>> -
>> - DICompositeType blockStruct(TmpTy);
>> -
>> - // Find the __forwarding field and the variable field in the __Block_byref
>> - // struct.
>> - DIArray Fields = blockStruct.getTypeArray();
>> - DIDerivedType varField;
>> - DIDerivedType forwardingField;
>> -
>> - for (unsigned i = 0, N = Fields.getNumElements(); i < N; ++i) {
>> - DIDerivedType DT(Fields.getElement(i));
>> - StringRef fieldName = DT.getName();
>> - if (fieldName == "__forwarding")
>> - forwardingField = DT;
>> - else if (fieldName == varName)
>> - varField = DT;
>> - }
>> -
>> - // Get the offsets for the forwarding field and the variable field.
>> - unsigned forwardingFieldOffset = forwardingField.getOffsetInBits() >> 3;
>> - unsigned varFieldOffset = varField.getOffsetInBits() >> 2;
>> -
>> - // Decode the original location, and use that as the start of the byref
>> - // variable's location.
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> -
>> - if (Location.isReg())
>> - addRegisterOp(Block, Location.getReg());
>> - else
>> - addRegisterOffset(Block, Location.getReg(), Location.getOffset());
>> -
>> - // If we started with a pointer to the __Block_byref... struct, then
>> - // the first thing we need to do is dereference the pointer (DW_OP_deref).
>> - if (isPointer)
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
>> -
>> - // Next add the offset for the '__forwarding' field:
>> - // DW_OP_plus_uconst ForwardingFieldOffset. Note there's no point in
>> - // adding the offset if it's 0.
>> - if (forwardingFieldOffset > 0) {
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
>> - addUInt(Block, dwarf::DW_FORM_udata, forwardingFieldOffset);
>> - }
>> -
>> - // Now dereference the __forwarding field to get to the real __Block_byref
>> - // struct: DW_OP_deref.
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
>> -
>> - // Now that we've got the real __Block_byref... struct, add the offset
>> - // for the variable's field to get to the location of the actual variable:
>> - // DW_OP_plus_uconst varFieldOffset. Again, don't add if it's 0.
>> - if (varFieldOffset > 0) {
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
>> - addUInt(Block, dwarf::DW_FORM_udata, varFieldOffset);
>> - }
>> -
>> - // Now attach the location information to the DIE.
>> - addBlock(Die, Attribute, Block);
>> -}
>> -
>> -/// isTypeSigned - Return true if the type is signed.
>> -static bool isTypeSigned(DwarfDebug *DD, DIType Ty, int *SizeInBits) {
>> - if (Ty.isDerivedType())
>> - return isTypeSigned(DD, DD->resolve(DIDerivedType(Ty).getTypeDerivedFrom()),
>> - SizeInBits);
>> - if (Ty.isBasicType())
>> - if (DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed ||
>> - DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed_char) {
>> - *SizeInBits = Ty.getSizeInBits();
>> - return true;
>> - }
>> - return false;
>> -}
>> -
>> -/// Return true if type encoding is unsigned.
>> -static bool isUnsignedDIType(DwarfDebug *DD, DIType Ty) {
>> - DIDerivedType DTy(Ty);
>> - if (DTy.isDerivedType())
>> - return isUnsignedDIType(DD, DD->resolve(DTy.getTypeDerivedFrom()));
>> -
>> - DIBasicType BTy(Ty);
>> - if (BTy.isBasicType()) {
>> - unsigned Encoding = BTy.getEncoding();
>> - if (Encoding == dwarf::DW_ATE_unsigned ||
>> - Encoding == dwarf::DW_ATE_unsigned_char ||
>> - Encoding == dwarf::DW_ATE_boolean)
>> - return true;
>> - }
>> - return false;
>> -}
>> -
>> -/// If this type is derived from a base type then return base type size.
>> -static uint64_t getBaseTypeSize(DwarfDebug *DD, DIDerivedType Ty) {
>> - unsigned Tag = Ty.getTag();
>> -
>> - if (Tag != dwarf::DW_TAG_member && Tag != dwarf::DW_TAG_typedef &&
>> - Tag != dwarf::DW_TAG_const_type && Tag != dwarf::DW_TAG_volatile_type &&
>> - Tag != dwarf::DW_TAG_restrict_type)
>> - return Ty.getSizeInBits();
>> -
>> - DIType BaseType = DD->resolve(Ty.getTypeDerivedFrom());
>> -
>> - // If this type is not derived from any type then take conservative approach.
>> - if (!BaseType.isValid())
>> - return Ty.getSizeInBits();
>> -
>> - // If this is a derived type, go ahead and get the base type, unless it's a
>> - // reference then it's just the size of the field. Pointer types have no need
>> - // of this since they're a different type of qualification on the type.
>> - if (BaseType.getTag() == dwarf::DW_TAG_reference_type ||
>> - BaseType.getTag() == dwarf::DW_TAG_rvalue_reference_type)
>> - return Ty.getSizeInBits();
>> -
>> - if (BaseType.isDerivedType())
>> - return getBaseTypeSize(DD, DIDerivedType(BaseType));
>> -
>> - return BaseType.getSizeInBits();
>> -}
>> -
>> -/// addConstantValue - Add constant value entry in variable DIE.
>> -void Unit::addConstantValue(DIE *Die, const MachineOperand &MO, DIType Ty) {
>> - // FIXME: This is a bit conservative/simple - it emits negative values at
>> - // their maximum bit width which is a bit unfortunate (& doesn't prefer
>> - // udata/sdata over dataN as suggested by the DWARF spec)
>> - assert(MO.isImm() && "Invalid machine operand!");
>> - int SizeInBits = -1;
>> - bool SignedConstant = isTypeSigned(DD, Ty, &SizeInBits);
>> - dwarf::Form Form;
>> -
>> - // If we're a signed constant definitely use sdata.
>> - if (SignedConstant) {
>> - addSInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, MO.getImm());
>> - return;
>> - }
>> -
>> - // Else use data for now unless it's larger than we can deal with.
>> - switch (SizeInBits) {
>> - case 8:
>> - Form = dwarf::DW_FORM_data1;
>> - break;
>> - case 16:
>> - Form = dwarf::DW_FORM_data2;
>> - break;
>> - case 32:
>> - Form = dwarf::DW_FORM_data4;
>> - break;
>> - case 64:
>> - Form = dwarf::DW_FORM_data8;
>> - break;
>> - default:
>> - Form = dwarf::DW_FORM_udata;
>> - addUInt(Die, dwarf::DW_AT_const_value, Form, MO.getImm());
>> - return;
>> - }
>> - addUInt(Die, dwarf::DW_AT_const_value, Form, MO.getImm());
>> -}
>> -
>> -/// addConstantFPValue - Add constant value entry in variable DIE.
>> -void Unit::addConstantFPValue(DIE *Die, const MachineOperand &MO) {
>> - assert(MO.isFPImm() && "Invalid machine operand!");
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> - APFloat FPImm = MO.getFPImm()->getValueAPF();
>> -
>> - // Get the raw data form of the floating point.
>> - const APInt FltVal = FPImm.bitcastToAPInt();
>> - const char *FltPtr = (const char *)FltVal.getRawData();
>> -
>> - int NumBytes = FltVal.getBitWidth() / 8; // 8 bits per byte.
>> - bool LittleEndian = Asm->getDataLayout().isLittleEndian();
>> - int Incr = (LittleEndian ? 1 : -1);
>> - int Start = (LittleEndian ? 0 : NumBytes - 1);
>> - int Stop = (LittleEndian ? NumBytes : -1);
>> -
>> - // Output the constant to DWARF one byte at a time.
>> - for (; Start != Stop; Start += Incr)
>> - addUInt(Block, dwarf::DW_FORM_data1, (unsigned char)0xFF & FltPtr[Start]);
>> -
>> - addBlock(Die, dwarf::DW_AT_const_value, Block);
>> -}
>> -
>> -/// addConstantFPValue - Add constant value entry in variable DIE.
>> -void Unit::addConstantFPValue(DIE *Die, const ConstantFP *CFP) {
>> - // Pass this down to addConstantValue as an unsigned bag of bits.
>> - addConstantValue(Die, CFP->getValueAPF().bitcastToAPInt(), true);
>> -}
>> -
>> -/// addConstantValue - Add constant value entry in variable DIE.
>> -void Unit::addConstantValue(DIE *Die, const ConstantInt *CI, bool Unsigned) {
>> - addConstantValue(Die, CI->getValue(), Unsigned);
>> -}
>> -
>> -// addConstantValue - Add constant value entry in variable DIE.
>> -void Unit::addConstantValue(DIE *Die, const APInt &Val, bool Unsigned) {
>> - unsigned CIBitWidth = Val.getBitWidth();
>> - if (CIBitWidth <= 64) {
>> - // If we're a signed constant definitely use sdata.
>> - if (!Unsigned) {
>> - addSInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
>> - Val.getSExtValue());
>> - return;
>> - }
>> -
>> - // Else use data for now unless it's larger than we can deal with.
>> - dwarf::Form Form;
>> - switch (CIBitWidth) {
>> - case 8:
>> - Form = dwarf::DW_FORM_data1;
>> - break;
>> - case 16:
>> - Form = dwarf::DW_FORM_data2;
>> - break;
>> - case 32:
>> - Form = dwarf::DW_FORM_data4;
>> - break;
>> - case 64:
>> - Form = dwarf::DW_FORM_data8;
>> - break;
>> - default:
>> - addUInt(Die, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata,
>> - Val.getZExtValue());
>> - return;
>> - }
>> - addUInt(Die, dwarf::DW_AT_const_value, Form, Val.getZExtValue());
>> - return;
>> - }
>> -
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> -
>> - // Get the raw data form of the large APInt.
>> - const uint64_t *Ptr64 = Val.getRawData();
>> -
>> - int NumBytes = Val.getBitWidth() / 8; // 8 bits per byte.
>> - bool LittleEndian = Asm->getDataLayout().isLittleEndian();
>> -
>> - // Output the constant to DWARF one byte at a time.
>> - for (int i = 0; i < NumBytes; i++) {
>> - uint8_t c;
>> - if (LittleEndian)
>> - c = Ptr64[i / 8] >> (8 * (i & 7));
>> - else
>> - c = Ptr64[(NumBytes - 1 - i) / 8] >> (8 * ((NumBytes - 1 - i) & 7));
>> - addUInt(Block, dwarf::DW_FORM_data1, c);
>> - }
>> -
>> - addBlock(Die, dwarf::DW_AT_const_value, Block);
>> -}
>> -
>> -/// addTemplateParams - Add template parameters into buffer.
>> -void Unit::addTemplateParams(DIE &Buffer, DIArray TParams) {
>> - // Add template parameters.
>> - for (unsigned i = 0, e = TParams.getNumElements(); i != e; ++i) {
>> - DIDescriptor Element = TParams.getElement(i);
>> - if (Element.isTemplateTypeParameter())
>> - constructTemplateTypeParameterDIE(Buffer,
>> - DITemplateTypeParameter(Element));
>> - else if (Element.isTemplateValueParameter())
>> - constructTemplateValueParameterDIE(Buffer,
>> - DITemplateValueParameter(Element));
>> - }
>> -}
>> -
>> -/// getOrCreateContextDIE - Get context owner's DIE.
>> -DIE *Unit::getOrCreateContextDIE(DIScope Context) {
>> - if (!Context || Context.isFile())
>> - return getCUDie();
>> - if (Context.isType())
>> - return getOrCreateTypeDIE(DIType(Context));
>> - if (Context.isNameSpace())
>> - return getOrCreateNameSpace(DINameSpace(Context));
>> - if (Context.isSubprogram())
>> - return getOrCreateSubprogramDIE(DISubprogram(Context));
>> - return getDIE(Context);
>> -}
>> -
>> -DIE *Unit::createTypeDIE(DICompositeType Ty) {
>> - DIScope Context = resolve(Ty.getContext());
>> - DIE *ContextDIE = getOrCreateContextDIE(Context);
>> -
>> - DIE *TyDIE = getDIE(Ty);
>> - if (TyDIE)
>> - return TyDIE;
>> -
>> - // Create new type.
>> - TyDIE = createAndAddDIE(Ty.getTag(), *ContextDIE, Ty);
>> -
>> - constructTypeDIE(*TyDIE, Ty);
>> -
>> - updateAcceleratorTables(Context, Ty, TyDIE);
>> - return TyDIE;
>> -}
>> -
>> -/// Return true if the type is appropriately scoped to be contained inside
>> -/// its own type unit.
>> -static bool isTypeUnitScoped(DIType Ty, const DwarfDebug *DD) {
>> - DIScope Parent = DD->resolve(Ty.getContext());
>> - while (Parent) {
>> - // Don't generate a hash for anything scoped inside a function.
>> - if (Parent.isSubprogram())
>> - return false;
>> - Parent = DD->resolve(Parent.getContext());
>> - }
>> - return true;
>> -}
>> -
>> -/// Return true if the type should be split out into a type unit.
>> -static bool shouldCreateTypeUnit(DICompositeType CTy, const DwarfDebug *DD) {
>> - if (!GenerateTypeUnits)
>> - return false;
>> -
>> - uint16_t Tag = CTy.getTag();
>> -
>> - switch (Tag) {
>> - case dwarf::DW_TAG_structure_type:
>> - case dwarf::DW_TAG_union_type:
>> - case dwarf::DW_TAG_enumeration_type:
>> - case dwarf::DW_TAG_class_type:
>> - // If this is a class, structure, union, or enumeration type
>> - // that is a definition (not a declaration), and not scoped
>> - // inside a function then separate this out as a type unit.
>> - return !CTy.isForwardDecl() && isTypeUnitScoped(CTy, DD);
>> - default:
>> - return false;
>> - }
>> -}
>> -
>> -/// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
>> -/// given DIType.
>> -DIE *Unit::getOrCreateTypeDIE(const MDNode *TyNode) {
>> - if (!TyNode)
>> - return NULL;
>> -
>> - DIType Ty(TyNode);
>> - assert(Ty.isType());
>> -
>> - // Construct the context before querying for the existence of the DIE in case
>> - // such construction creates the DIE.
>> - DIScope Context = resolve(Ty.getContext());
>> - DIE *ContextDIE = getOrCreateContextDIE(Context);
>> - assert(ContextDIE);
>> -
>> - DIE *TyDIE = getDIE(Ty);
>> - if (TyDIE)
>> - return TyDIE;
>> -
>> - // Create new type.
>> - TyDIE = createAndAddDIE(Ty.getTag(), *ContextDIE, Ty);
>> -
>> - if (Ty.isBasicType())
>> - constructTypeDIE(*TyDIE, DIBasicType(Ty));
>> - else if (Ty.isCompositeType()) {
>> - DICompositeType CTy(Ty);
>> - if (shouldCreateTypeUnit(CTy, DD)) {
>> - DD->addTypeUnitType(getLanguage(), TyDIE, CTy);
>> - // Skip updating the accellerator tables since this is not the full type
>> - return TyDIE;
>> - }
>> - constructTypeDIE(*TyDIE, CTy);
>> - } else {
>> - assert(Ty.isDerivedType() && "Unknown kind of DIType");
>> - constructTypeDIE(*TyDIE, DIDerivedType(Ty));
>> - }
>> -
>> - updateAcceleratorTables(Context, Ty, TyDIE);
>> -
>> - return TyDIE;
>> -}
>> -
>> -void Unit::updateAcceleratorTables(DIScope Context, DIType Ty,
>> - const DIE *TyDIE) {
>> - if (!Ty.getName().empty() && !Ty.isForwardDecl()) {
>> - bool IsImplementation = 0;
>> - if (Ty.isCompositeType()) {
>> - DICompositeType CT(Ty);
>> - // A runtime language of 0 actually means C/C++ and that any
>> - // non-negative value is some version of Objective-C/C++.
>> - IsImplementation = (CT.getRunTimeLang() == 0) || CT.isObjcClassComplete();
>> - }
>> - unsigned Flags = IsImplementation ? dwarf::DW_FLAG_type_implementation : 0;
>> - addAccelType(Ty.getName(), std::make_pair(TyDIE, Flags));
>> -
>> - if (!Context || Context.isCompileUnit() || Context.isFile() ||
>> - Context.isNameSpace())
>> - GlobalTypes[getParentContextString(Context) + Ty.getName().str()] = TyDIE;
>> - }
>> -}
>> -
>> -/// addType - Add a new type attribute to the specified entity.
>> -void Unit::addType(DIE *Entity, DIType Ty, dwarf::Attribute Attribute) {
>> - assert(Ty && "Trying to add a type that doesn't exist?");
>> -
>> - // Check for pre-existence.
>> - DIEEntry *Entry = getDIEEntry(Ty);
>> - // If it exists then use the existing value.
>> - if (Entry) {
>> - addDIEEntry(Entity, Attribute, Entry);
>> - return;
>> - }
>> -
>> - // Construct type.
>> - DIE *Buffer = getOrCreateTypeDIE(Ty);
>> -
>> - // Set up proxy.
>> - Entry = createDIEEntry(Buffer);
>> - insertDIEEntry(Ty, Entry);
>> - addDIEEntry(Entity, Attribute, Entry);
>> -}
>> -
>> -// Accelerator table mutators - add each name along with its companion
>> -// DIE to the proper table while ensuring that the name that we're going
>> -// to reference is in the string table. We do this since the names we
>> -// add may not only be identical to the names in the DIE.
>> -void Unit::addAccelName(StringRef Name, const DIE *Die) {
>> - DU->getStringPoolEntry(Name);
>> - std::vector<const DIE *> &DIEs = AccelNames[Name];
>> - DIEs.push_back(Die);
>> -}
>> -
>> -void Unit::addAccelObjC(StringRef Name, const DIE *Die) {
>> - DU->getStringPoolEntry(Name);
>> - std::vector<const DIE *> &DIEs = AccelObjC[Name];
>> - DIEs.push_back(Die);
>> -}
>> -
>> -void Unit::addAccelNamespace(StringRef Name, const DIE *Die) {
>> - DU->getStringPoolEntry(Name);
>> - std::vector<const DIE *> &DIEs = AccelNamespace[Name];
>> - DIEs.push_back(Die);
>> -}
>> -
>> -void Unit::addAccelType(StringRef Name, std::pair<const DIE *, unsigned> Die) {
>> - DU->getStringPoolEntry(Name);
>> - std::vector<std::pair<const DIE *, unsigned> > &DIEs = AccelTypes[Name];
>> - DIEs.push_back(Die);
>> -}
>> -
>> -/// addGlobalName - Add a new global name to the compile unit.
>> -void Unit::addGlobalName(StringRef Name, DIE *Die, DIScope Context) {
>> - std::string FullName = getParentContextString(Context) + Name.str();
>> - GlobalNames[FullName] = Die;
>> -}
>> -
>> -/// getParentContextString - Walks the metadata parent chain in a language
>> -/// specific manner (using the compile unit language) and returns
>> -/// it as a string. This is done at the metadata level because DIEs may
>> -/// not currently have been added to the parent context and walking the
>> -/// DIEs looking for names is more expensive than walking the metadata.
>> -std::string Unit::getParentContextString(DIScope Context) const {
>> - if (!Context)
>> - return "";
>> -
>> - // FIXME: Decide whether to implement this for non-C++ languages.
>> - if (getLanguage() != dwarf::DW_LANG_C_plus_plus)
>> - return "";
>> -
>> - std::string CS;
>> - SmallVector<DIScope, 1> Parents;
>> - while (!Context.isCompileUnit()) {
>> - Parents.push_back(Context);
>> - if (Context.getContext())
>> - Context = resolve(Context.getContext());
>> - else
>> - // Structure, etc types will have a NULL context if they're at the top
>> - // level.
>> - break;
>> - }
>> -
>> - // Reverse iterate over our list to go from the outermost construct to the
>> - // innermost.
>> - for (SmallVectorImpl<DIScope>::reverse_iterator I = Parents.rbegin(),
>> - E = Parents.rend();
>> - I != E; ++I) {
>> - DIScope Ctx = *I;
>> - StringRef Name = Ctx.getName();
>> - if (!Name.empty()) {
>> - CS += Name;
>> - CS += "::";
>> - }
>> - }
>> - return CS;
>> -}
>> -
>> -/// constructTypeDIE - Construct basic type die from DIBasicType.
>> -void Unit::constructTypeDIE(DIE &Buffer, DIBasicType BTy) {
>> - // Get core information.
>> - StringRef Name = BTy.getName();
>> - // Add name if not anonymous or intermediate type.
>> - if (!Name.empty())
>> - addString(&Buffer, dwarf::DW_AT_name, Name);
>> -
>> - // An unspecified type only has a name attribute.
>> - if (BTy.getTag() == dwarf::DW_TAG_unspecified_type)
>> - return;
>> -
>> - addUInt(&Buffer, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
>> - BTy.getEncoding());
>> -
>> - uint64_t Size = BTy.getSizeInBits() >> 3;
>> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, Size);
>> -}
>> -
>> -/// constructTypeDIE - Construct derived type die from DIDerivedType.
>> -void Unit::constructTypeDIE(DIE &Buffer, DIDerivedType DTy) {
>> - // Get core information.
>> - StringRef Name = DTy.getName();
>> - uint64_t Size = DTy.getSizeInBits() >> 3;
>> - uint16_t Tag = Buffer.getTag();
>> -
>> - // Map to main type, void will not have a type.
>> - DIType FromTy = resolve(DTy.getTypeDerivedFrom());
>> - if (FromTy)
>> - addType(&Buffer, FromTy);
>> -
>> - // Add name if not anonymous or intermediate type.
>> - if (!Name.empty())
>> - addString(&Buffer, dwarf::DW_AT_name, Name);
>> -
>> - // Add size if non-zero (derived types might be zero-sized.)
>> - if (Size && Tag != dwarf::DW_TAG_pointer_type)
>> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, Size);
>> -
>> - if (Tag == dwarf::DW_TAG_ptr_to_member_type)
>> - addDIEEntry(&Buffer, dwarf::DW_AT_containing_type,
>> - getOrCreateTypeDIE(resolve(DTy.getClassType())));
>> - // Add source line info if available and TyDesc is not a forward declaration.
>> - if (!DTy.isForwardDecl())
>> - addSourceLine(&Buffer, DTy);
>> -}
>> -
>> -/// constructTypeDIE - Construct type DIE from DICompositeType.
>> -void Unit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
>> - // Add name if not anonymous or intermediate type.
>> - StringRef Name = CTy.getName();
>> -
>> - uint64_t Size = CTy.getSizeInBits() >> 3;
>> - uint16_t Tag = Buffer.getTag();
>> -
>> - switch (Tag) {
>> - case dwarf::DW_TAG_array_type:
>> - constructArrayTypeDIE(Buffer, CTy);
>> - break;
>> - case dwarf::DW_TAG_enumeration_type:
>> - constructEnumTypeDIE(Buffer, CTy);
>> - break;
>> - case dwarf::DW_TAG_subroutine_type: {
>> - // Add return type. A void return won't have a type.
>> - DIArray Elements = CTy.getTypeArray();
>> - DIType RTy(Elements.getElement(0));
>> - if (RTy)
>> - addType(&Buffer, RTy);
>> -
>> - bool isPrototyped = true;
>> - // Add arguments.
>> - for (unsigned i = 1, N = Elements.getNumElements(); i < N; ++i) {
>> - DIDescriptor Ty = Elements.getElement(i);
>> - if (Ty.isUnspecifiedParameter()) {
>> - createAndAddDIE(dwarf::DW_TAG_unspecified_parameters, Buffer);
>> - isPrototyped = false;
>> - } else {
>> - DIE *Arg = createAndAddDIE(dwarf::DW_TAG_formal_parameter, Buffer);
>> - addType(Arg, DIType(Ty));
>> - if (DIType(Ty).isArtificial())
>> - addFlag(Arg, dwarf::DW_AT_artificial);
>> - }
>> - }
>> - // Add prototype flag if we're dealing with a C language and the
>> - // function has been prototyped.
>> - uint16_t Language = getLanguage();
>> - if (isPrototyped &&
>> - (Language == dwarf::DW_LANG_C89 || Language == dwarf::DW_LANG_C99 ||
>> - Language == dwarf::DW_LANG_ObjC))
>> - addFlag(&Buffer, dwarf::DW_AT_prototyped);
>> - } break;
>> - case dwarf::DW_TAG_structure_type:
>> - case dwarf::DW_TAG_union_type:
>> - case dwarf::DW_TAG_class_type: {
>> - // Add elements to structure type.
>> - DIArray Elements = CTy.getTypeArray();
>> - for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
>> - DIDescriptor Element = Elements.getElement(i);
>> - DIE *ElemDie = NULL;
>> - if (Element.isSubprogram()) {
>> - DISubprogram SP(Element);
>> - ElemDie = getOrCreateSubprogramDIE(SP);
>> - if (SP.isProtected())
>> - addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_protected);
>> - else if (SP.isPrivate())
>> - addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_private);
>> - else
>> - addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_public);
>> - if (SP.isExplicit())
>> - addFlag(ElemDie, dwarf::DW_AT_explicit);
>> - } else if (Element.isDerivedType()) {
>> - DIDerivedType DDTy(Element);
>> - if (DDTy.getTag() == dwarf::DW_TAG_friend) {
>> - ElemDie = createAndAddDIE(dwarf::DW_TAG_friend, Buffer);
>> - addType(ElemDie, resolve(DDTy.getTypeDerivedFrom()),
>> - dwarf::DW_AT_friend);
>> - } else if (DDTy.isStaticMember()) {
>> - getOrCreateStaticMemberDIE(DDTy);
>> - } else {
>> - constructMemberDIE(Buffer, DDTy);
>> - }
>> - } else if (Element.isObjCProperty()) {
>> - DIObjCProperty Property(Element);
>> - ElemDie = createAndAddDIE(Property.getTag(), Buffer);
>> - StringRef PropertyName = Property.getObjCPropertyName();
>> - addString(ElemDie, dwarf::DW_AT_APPLE_property_name, PropertyName);
>> - addType(ElemDie, Property.getType());
>> - addSourceLine(ElemDie, Property);
>> - StringRef GetterName = Property.getObjCPropertyGetterName();
>> - if (!GetterName.empty())
>> - addString(ElemDie, dwarf::DW_AT_APPLE_property_getter, GetterName);
>> - StringRef SetterName = Property.getObjCPropertySetterName();
>> - if (!SetterName.empty())
>> - addString(ElemDie, dwarf::DW_AT_APPLE_property_setter, SetterName);
>> - unsigned PropertyAttributes = 0;
>> - if (Property.isReadOnlyObjCProperty())
>> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly;
>> - if (Property.isReadWriteObjCProperty())
>> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readwrite;
>> - if (Property.isAssignObjCProperty())
>> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_assign;
>> - if (Property.isRetainObjCProperty())
>> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_retain;
>> - if (Property.isCopyObjCProperty())
>> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_copy;
>> - if (Property.isNonAtomicObjCProperty())
>> - PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_nonatomic;
>> - if (PropertyAttributes)
>> - addUInt(ElemDie, dwarf::DW_AT_APPLE_property_attribute, None,
>> - PropertyAttributes);
>> -
>> - DIEEntry *Entry = getDIEEntry(Element);
>> - if (!Entry) {
>> - Entry = createDIEEntry(ElemDie);
>> - insertDIEEntry(Element, Entry);
>> - }
>> - } else
>> - continue;
>> - }
>> -
>> - if (CTy.isAppleBlockExtension())
>> - addFlag(&Buffer, dwarf::DW_AT_APPLE_block);
>> -
>> - DICompositeType ContainingType(resolve(CTy.getContainingType()));
>> - if (ContainingType)
>> - addDIEEntry(&Buffer, dwarf::DW_AT_containing_type,
>> - getOrCreateTypeDIE(ContainingType));
>> -
>> - if (CTy.isObjcClassComplete())
>> - addFlag(&Buffer, dwarf::DW_AT_APPLE_objc_complete_type);
>> -
>> - // Add template parameters to a class, structure or union types.
>> - // FIXME: The support isn't in the metadata for this yet.
>> - if (Tag == dwarf::DW_TAG_class_type ||
>> - Tag == dwarf::DW_TAG_structure_type || Tag == dwarf::DW_TAG_union_type)
>> - addTemplateParams(Buffer, CTy.getTemplateParams());
>> -
>> - break;
>> - }
>> - default:
>> - break;
>> - }
>> -
>> - // Add name if not anonymous or intermediate type.
>> - if (!Name.empty())
>> - addString(&Buffer, dwarf::DW_AT_name, Name);
>> -
>> - if (Tag == dwarf::DW_TAG_enumeration_type ||
>> - Tag == dwarf::DW_TAG_class_type || Tag == dwarf::DW_TAG_structure_type ||
>> - Tag == dwarf::DW_TAG_union_type) {
>> - // Add size if non-zero (derived types might be zero-sized.)
>> - // TODO: Do we care about size for enum forward declarations?
>> - if (Size)
>> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, Size);
>> - else if (!CTy.isForwardDecl())
>> - // Add zero size if it is not a forward declaration.
>> - addUInt(&Buffer, dwarf::DW_AT_byte_size, None, 0);
>> -
>> - // If we're a forward decl, say so.
>> - if (CTy.isForwardDecl())
>> - addFlag(&Buffer, dwarf::DW_AT_declaration);
>> -
>> - // Add source line info if available.
>> - if (!CTy.isForwardDecl())
>> - addSourceLine(&Buffer, CTy);
>> -
>> - // No harm in adding the runtime language to the declaration.
>> - unsigned RLang = CTy.getRunTimeLang();
>> - if (RLang)
>> - addUInt(&Buffer, dwarf::DW_AT_APPLE_runtime_class, dwarf::DW_FORM_data1,
>> - RLang);
>> - }
>> -}
>> -
>> -/// constructTemplateTypeParameterDIE - Construct new DIE for the given
>> -/// DITemplateTypeParameter.
>> -void Unit::constructTemplateTypeParameterDIE(DIE &Buffer,
>> - DITemplateTypeParameter TP) {
>> - DIE *ParamDIE =
>> - createAndAddDIE(dwarf::DW_TAG_template_type_parameter, Buffer);
>> - // Add the type if it exists, it could be void and therefore no type.
>> - if (TP.getType())
>> - addType(ParamDIE, resolve(TP.getType()));
>> - if (!TP.getName().empty())
>> - addString(ParamDIE, dwarf::DW_AT_name, TP.getName());
>> -}
>> -
>> -/// constructTemplateValueParameterDIE - Construct new DIE for the given
>> -/// DITemplateValueParameter.
>> -void Unit::constructTemplateValueParameterDIE(DIE &Buffer,
>> - DITemplateValueParameter VP) {
>> - DIE *ParamDIE = createAndAddDIE(VP.getTag(), Buffer);
>> -
>> - // Add the type if there is one, template template and template parameter
>> - // packs will not have a type.
>> - if (VP.getTag() == dwarf::DW_TAG_template_value_parameter)
>> - addType(ParamDIE, resolve(VP.getType()));
>> - if (!VP.getName().empty())
>> - addString(ParamDIE, dwarf::DW_AT_name, VP.getName());
>> - if (Value *Val = VP.getValue()) {
>> - if (ConstantInt *CI = dyn_cast<ConstantInt>(Val))
>> - addConstantValue(ParamDIE, CI,
>> - isUnsignedDIType(DD, resolve(VP.getType())));
>> - else if (GlobalValue *GV = dyn_cast<GlobalValue>(Val)) {
>> - // For declaration non-type template parameters (such as global values and
>> - // functions)
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> - addOpAddress(Block, Asm->getSymbol(GV));
>> - // Emit DW_OP_stack_value to use the address as the immediate value of the
>> - // parameter, rather than a pointer to it.
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_stack_value);
>> - addBlock(ParamDIE, dwarf::DW_AT_location, Block);
>> - } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_template_param) {
>> - assert(isa<MDString>(Val));
>> - addString(ParamDIE, dwarf::DW_AT_GNU_template_name,
>> - cast<MDString>(Val)->getString());
>> - } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_parameter_pack) {
>> - assert(isa<MDNode>(Val));
>> - DIArray A(cast<MDNode>(Val));
>> - addTemplateParams(*ParamDIE, A);
>> - }
>> - }
>> -}
>> -
>> -/// getOrCreateNameSpace - Create a DIE for DINameSpace.
>> -DIE *Unit::getOrCreateNameSpace(DINameSpace NS) {
>> - // Construct the context before querying for the existence of the DIE in case
>> - // such construction creates the DIE.
>> - DIE *ContextDIE = getOrCreateContextDIE(NS.getContext());
>> -
>> - DIE *NDie = getDIE(NS);
>> - if (NDie)
>> - return NDie;
>> - NDie = createAndAddDIE(dwarf::DW_TAG_namespace, *ContextDIE, NS);
>> -
>> - if (!NS.getName().empty()) {
>> - addString(NDie, dwarf::DW_AT_name, NS.getName());
>> - addAccelNamespace(NS.getName(), NDie);
>> - addGlobalName(NS.getName(), NDie, NS.getContext());
>> - } else
>> - addAccelNamespace("(anonymous namespace)", NDie);
>> - addSourceLine(NDie, NS);
>> - return NDie;
>> -}
>> -
>> -/// getOrCreateSubprogramDIE - Create new DIE using SP.
>> -DIE *Unit::getOrCreateSubprogramDIE(DISubprogram SP) {
>> - // Construct the context before querying for the existence of the DIE in case
>> - // such construction creates the DIE (as is the case for member function
>> - // declarations).
>> - DIE *ContextDIE = getOrCreateContextDIE(resolve(SP.getContext()));
>> -
>> - DIE *SPDie = getDIE(SP);
>> - if (SPDie)
>> - return SPDie;
>> -
>> - DISubprogram SPDecl = SP.getFunctionDeclaration();
>> - if (SPDecl.isSubprogram())
>> - // Add subprogram definitions to the CU die directly.
>> - ContextDIE = CUDie.get();
>> -
>> - // DW_TAG_inlined_subroutine may refer to this DIE.
>> - SPDie = createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, SP);
>> -
>> - DIE *DeclDie = NULL;
>> - if (SPDecl.isSubprogram())
>> - DeclDie = getOrCreateSubprogramDIE(SPDecl);
>> -
>> - // Add function template parameters.
>> - addTemplateParams(*SPDie, SP.getTemplateParams());
>> -
>> - // If this DIE is going to refer declaration info using AT_specification
>> - // then there is no need to add other attributes.
>> - if (DeclDie) {
>> - // Refer function declaration directly.
>> - addDIEEntry(SPDie, dwarf::DW_AT_specification, DeclDie);
>> -
>> - return SPDie;
>> - }
>> -
>> - // Add the linkage name if we have one.
>> - StringRef LinkageName = SP.getLinkageName();
>> - if (!LinkageName.empty())
>> - addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
>> - GlobalValue::getRealLinkageName(LinkageName));
>> -
>> - // Constructors and operators for anonymous aggregates do not have names.
>> - if (!SP.getName().empty())
>> - addString(SPDie, dwarf::DW_AT_name, SP.getName());
>> -
>> - addSourceLine(SPDie, SP);
>> -
>> - // Add the prototype if we have a prototype and we have a C like
>> - // language.
>> - uint16_t Language = getLanguage();
>> - if (SP.isPrototyped() &&
>> - (Language == dwarf::DW_LANG_C89 || Language == dwarf::DW_LANG_C99 ||
>> - Language == dwarf::DW_LANG_ObjC))
>> - addFlag(SPDie, dwarf::DW_AT_prototyped);
>> -
>> - DICompositeType SPTy = SP.getType();
>> - assert(SPTy.getTag() == dwarf::DW_TAG_subroutine_type &&
>> - "the type of a subprogram should be a subroutine");
>> -
>> - DIArray Args = SPTy.getTypeArray();
>> - // Add a return type. If this is a type like a C/C++ void type we don't add a
>> - // return type.
>> - if (Args.getElement(0))
>> - addType(SPDie, DIType(Args.getElement(0)));
>> -
>> - unsigned VK = SP.getVirtuality();
>> - if (VK) {
>> - addUInt(SPDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1, VK);
>> - DIEBlock *Block = getDIEBlock();
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
>> - addUInt(Block, dwarf::DW_FORM_udata, SP.getVirtualIndex());
>> - addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, Block);
>> - ContainingTypeMap.insert(
>> - std::make_pair(SPDie, resolve(SP.getContainingType())));
>> - }
>> -
>> - if (!SP.isDefinition()) {
>> - addFlag(SPDie, dwarf::DW_AT_declaration);
>> -
>> - // Add arguments. Do not add arguments for subprogram definition. They will
>> - // be handled while processing variables.
>> - for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) {
>> - DIE *Arg = createAndAddDIE(dwarf::DW_TAG_formal_parameter, *SPDie);
>> - DIType ATy(Args.getElement(i));
>> - addType(Arg, ATy);
>> - if (ATy.isArtificial())
>> - addFlag(Arg, dwarf::DW_AT_artificial);
>> - }
>> - }
>> -
>> - if (SP.isArtificial())
>> - addFlag(SPDie, dwarf::DW_AT_artificial);
>> -
>> - if (!SP.isLocalToUnit())
>> - addFlag(SPDie, dwarf::DW_AT_external);
>> -
>> - if (SP.isOptimized())
>> - addFlag(SPDie, dwarf::DW_AT_APPLE_optimized);
>> -
>> - if (unsigned isa = Asm->getISAEncoding()) {
>> - addUInt(SPDie, dwarf::DW_AT_APPLE_isa, dwarf::DW_FORM_flag, isa);
>> - }
>> -
>> - return SPDie;
>> -}
>> -
>> -// Return const expression if value is a GEP to access merged global
>> -// constant. e.g.
>> -// i8* getelementptr ({ i8, i8, i8, i8 }* @_MergedGlobals, i32 0, i32 0)
>> -static const ConstantExpr *getMergedGlobalExpr(const Value *V) {
>> - const ConstantExpr *CE = dyn_cast_or_null<ConstantExpr>(V);
>> - if (!CE || CE->getNumOperands() != 3 ||
>> - CE->getOpcode() != Instruction::GetElementPtr)
>> - return NULL;
>> -
>> - // First operand points to a global struct.
>> - Value *Ptr = CE->getOperand(0);
>> - if (!isa<GlobalValue>(Ptr) ||
>> - !isa<StructType>(cast<PointerType>(Ptr->getType())->getElementType()))
>> - return NULL;
>> -
>> - // Second operand is zero.
>> - const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(CE->getOperand(1));
>> - if (!CI || !CI->isZero())
>> - return NULL;
>> -
>> - // Third operand is offset.
>> - if (!isa<ConstantInt>(CE->getOperand(2)))
>> - return NULL;
>> -
>> - return CE;
>> -}
>> -
>> -/// createGlobalVariableDIE - create global variable DIE.
>> -void CompileUnit::createGlobalVariableDIE(DIGlobalVariable GV) {
>> - // Check for pre-existence.
>> - if (getDIE(GV))
>> - return;
>> -
>> - if (!GV.isGlobalVariable())
>> - return;
>> -
>> - DIScope GVContext = GV.getContext();
>> - DIType GTy = GV.getType();
>> -
>> - // If this is a static data member definition, some attributes belong
>> - // to the declaration DIE.
>> - DIE *VariableDIE = NULL;
>> - bool IsStaticMember = false;
>> - DIDerivedType SDMDecl = GV.getStaticDataMemberDeclaration();
>> - if (SDMDecl.Verify()) {
>> - assert(SDMDecl.isStaticMember() && "Expected static member decl");
>> - // We need the declaration DIE that is in the static member's class.
>> - VariableDIE = getOrCreateStaticMemberDIE(SDMDecl);
>> - IsStaticMember = true;
>> - }
>> -
>> - // If this is not a static data member definition, create the variable
>> - // DIE and add the initial set of attributes to it.
>> - if (!VariableDIE) {
>> - // Construct the context before querying for the existence of the DIE in
>> - // case such construction creates the DIE.
>> - DIE *ContextDIE = getOrCreateContextDIE(GVContext);
>> -
>> - // Add to map.
>> - VariableDIE = createAndAddDIE(GV.getTag(), *ContextDIE, GV);
>> -
>> - // Add name and type.
>> - addString(VariableDIE, dwarf::DW_AT_name, GV.getDisplayName());
>> - addType(VariableDIE, GTy);
>> -
>> - // Add scoping info.
>> - if (!GV.isLocalToUnit())
>> - addFlag(VariableDIE, dwarf::DW_AT_external);
>> -
>> - // Add line number info.
>> - addSourceLine(VariableDIE, GV);
>> - }
>> -
>> - // Add location.
>> - bool addToAccelTable = false;
>> - DIE *VariableSpecDIE = NULL;
>> - bool isGlobalVariable = GV.getGlobal() != NULL;
>> - if (isGlobalVariable) {
>> - addToAccelTable = true;
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> - const MCSymbol *Sym = Asm->getSymbol(GV.getGlobal());
>> - if (GV.getGlobal()->isThreadLocal()) {
>> - // FIXME: Make this work with -gsplit-dwarf.
>> - unsigned PointerSize = Asm->getDataLayout().getPointerSize();
>> - assert((PointerSize == 4 || PointerSize == 8) &&
>> - "Add support for other sizes if necessary");
>> - const MCExpr *Expr =
>> - Asm->getObjFileLowering().getDebugThreadLocalSymbol(Sym);
>> - // Based on GCC's support for TLS:
>> - if (!DD->useSplitDwarf()) {
>> - // 1) Start with a constNu of the appropriate pointer size
>> - addUInt(Block, dwarf::DW_FORM_data1,
>> - PointerSize == 4 ? dwarf::DW_OP_const4u : dwarf::DW_OP_const8u);
>> - // 2) containing the (relocated) offset of the TLS variable
>> - // within the module's TLS block.
>> - addExpr(Block, dwarf::DW_FORM_udata, Expr);
>> - } else {
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_GNU_const_index);
>> - addUInt(Block, dwarf::DW_FORM_udata, DU->getAddrPoolIndex(Expr));
>> - }
>> - // 3) followed by a custom OP to make the debugger do a TLS lookup.
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_GNU_push_tls_address);
>> - } else {
>> - DD->addArangeLabel(SymbolCU(this, Sym));
>> - addOpAddress(Block, Sym);
>> - }
>> - // Do not create specification DIE if context is either compile unit
>> - // or a subprogram.
>> - if (GVContext && GV.isDefinition() && !GVContext.isCompileUnit() &&
>> - !GVContext.isFile() && !DD->isSubprogramContext(GVContext)) {
>> - // Create specification DIE.
>> - VariableSpecDIE = createAndAddDIE(dwarf::DW_TAG_variable, *CUDie);
>> - addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification, VariableDIE);
>> - addBlock(VariableSpecDIE, dwarf::DW_AT_location, Block);
>> - // A static member's declaration is already flagged as such.
>> - if (!SDMDecl.Verify())
>> - addFlag(VariableDIE, dwarf::DW_AT_declaration);
>> - } else {
>> - addBlock(VariableDIE, dwarf::DW_AT_location, Block);
>> - }
>> - // Add the linkage name.
>> - StringRef LinkageName = GV.getLinkageName();
>> - if (!LinkageName.empty())
>> - // From DWARF4: DIEs to which DW_AT_linkage_name may apply include:
>> - // TAG_common_block, TAG_constant, TAG_entry_point, TAG_subprogram and
>> - // TAG_variable.
>> - addString(IsStaticMember && VariableSpecDIE ? VariableSpecDIE
>> - : VariableDIE,
>> - dwarf::DW_AT_MIPS_linkage_name,
>> - GlobalValue::getRealLinkageName(LinkageName));
>> - } else if (const ConstantInt *CI =
>> - dyn_cast_or_null<ConstantInt>(GV.getConstant())) {
>> - // AT_const_value was added when the static member was created. To avoid
>> - // emitting AT_const_value multiple times, we only add AT_const_value when
>> - // it is not a static member.
>> - if (!IsStaticMember)
>> - addConstantValue(VariableDIE, CI, isUnsignedDIType(DD, GTy));
>> - } else if (const ConstantExpr *CE = getMergedGlobalExpr(GV->getOperand(11))) {
>> - addToAccelTable = true;
>> - // GV is a merged global.
>> - DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
>> - Value *Ptr = CE->getOperand(0);
>> - MCSymbol *Sym = Asm->getSymbol(cast<GlobalValue>(Ptr));
>> - DD->addArangeLabel(SymbolCU(this, Sym));
>> - addOpAddress(Block, Sym);
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
>> - SmallVector<Value *, 3> Idx(CE->op_begin() + 1, CE->op_end());
>> - addUInt(Block, dwarf::DW_FORM_udata,
>> - Asm->getDataLayout().getIndexedOffset(Ptr->getType(), Idx));
>> - addUInt(Block, dwarf::DW_FORM_data1, dwarf::DW_OP_plus);
>> - addBlock(VariableDIE, dwarf::DW_AT_location, Block);
>> - }
>> -
>> - if (addToAccelTable) {
>> - DIE *AddrDIE = VariableSpecDIE ? VariableSpecDIE : VariableDIE;
>> - addAccelName(GV.getName(), AddrDIE);
>> -
>> - // If the linkage name is different than the name, go ahead and output
>> - // that as well into the name table.
>> - if (GV.getLinkageName() != "" && GV.getName() != GV.getLinkageName())
>> - addAccelName(GV.getLinkageName(), AddrDIE);
>> - }
>> -
>> - if (!GV.isLocalToUnit())
>> - addGlobalName(GV.getName(), VariableSpecDIE ? VariableSpecDIE : VariableDIE,
>> - GV.getContext());
>> -}
>> -
>> -/// constructSubrangeDIE - Construct subrange DIE from DISubrange.
>> -void Unit::constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy) {
>> - DIE *DW_Subrange = createAndAddDIE(dwarf::DW_TAG_subrange_type, Buffer);
>> - addDIEEntry(DW_Subrange, dwarf::DW_AT_type, IndexTy);
>> -
>> - // The LowerBound value defines the lower bounds which is typically zero for
>> - // C/C++. The Count value is the number of elements. Values are 64 bit. If
>> - // Count == -1 then the array is unbounded and we do not emit
>> - // DW_AT_lower_bound and DW_AT_upper_bound attributes. If LowerBound == 0 and
>> - // Count == 0, then the array has zero elements in which case we do not emit
>> - // an upper bound.
>> - int64_t LowerBound = SR.getLo();
>> - int64_t DefaultLowerBound = getDefaultLowerBound();
>> - int64_t Count = SR.getCount();
>> -
>> - if (DefaultLowerBound == -1 || LowerBound != DefaultLowerBound)
>> - addUInt(DW_Subrange, dwarf::DW_AT_lower_bound, None, LowerBound);
>> -
>> - if (Count != -1 && Count != 0)
>> - // FIXME: An unbounded array should reference the expression that defines
>> - // the array.
>> - addUInt(DW_Subrange, dwarf::DW_AT_upper_bound, None,
>> - LowerBound + Count - 1);
>> -}
>> -
>> -/// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
>> -void Unit::constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy) {
>> - if (CTy.isVector())
>> - addFlag(&Buffer, dwarf::DW_AT_GNU_vector);
>> -
>> - // Emit the element type.
>> - addType(&Buffer, resolve(CTy.getTypeDerivedFrom()));
>> -
>> - // Get an anonymous type for index type.
>> - // FIXME: This type should be passed down from the front end
>> - // as different languages may have different sizes for indexes.
>> - DIE *IdxTy = getIndexTyDie();
>> - if (!IdxTy) {
>> - // Construct an anonymous type for index type.
>> - IdxTy = createAndAddDIE(dwarf::DW_TAG_base_type, *CUDie.get());
>> - addString(IdxTy, dwarf::DW_AT_name, "int");
>> - addUInt(IdxTy, dwarf::DW_AT_byte_size, None, sizeof(int32_t));
>> - addUInt(IdxTy, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
>> - dwarf::DW_ATE_signed);
>> - setIndexTyDie(IdxTy);
>> - }
>> -
>> - // Add subranges to array type.
>> - DIArray Elements = CTy.getTypeArray();
>> - for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
>> - DIDescriptor Element = Elements.getElement(i);
>> - if (Element.getTag() == dwarf::DW_TAG_subrange_type)
>> - constructSubrangeDIE(Buffer, DISubrange(Element), IdxTy);
>> - }
>> -}
>> -
>> -/// constructEnumTypeDIE - Construct an enum type DIE from DICompositeType.
>> -void Unit::constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy) {
>> - DIArray Elements = CTy.getTypeArray();
>> -
>> - // Add enumerators to enumeration type.
>> - for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
>> - DIEnumerator Enum(Elements.getElement(i));
>> - if (Enum.isEnumerator()) {
>> - DIE *Enumerator = createAndAddDIE(dwarf::DW_TAG_enumerator, Buffer);
>> - StringRef Name = Enum.getName();
>> - addString(Enumerator, dwarf::DW_AT_name, Name);
>> - int64_t Value = Enum.getEnumValue();
>> - addSInt(Enumerator, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
>> - Value);
>> - }
>> - }
>> - DIType DTy = resolve(CTy.getTypeDerivedFrom());
>> - if (DTy) {
>> - addType(&Buffer, DTy);
>> - addFlag(&Buffer, dwarf::DW_AT_enum_class);
>> - }
>> -}
>> -
>> -/// constructContainingTypeDIEs - Construct DIEs for types that contain
>> -/// vtables.
>> -void Unit::constructContainingTypeDIEs() {
>> - for (DenseMap<DIE *, const MDNode *>::iterator CI = ContainingTypeMap.begin(),
>> - CE = ContainingTypeMap.end();
>> - CI != CE; ++CI) {
>> - DIE *SPDie = CI->first;
>> - DIDescriptor D(CI->second);
>> - if (!D)
>> - continue;
>> - DIE *NDie = getDIE(D);
>> - if (!NDie)
>> - continue;
>> - addDIEEntry(SPDie, dwarf::DW_AT_containing_type, NDie);
>> - }
>> -}
>> -
>> -/// constructVariableDIE - Construct a DIE for the given DbgVariable.
>> -DIE *Unit::constructVariableDIE(DbgVariable &DV, bool isScopeAbstract) {
>> - StringRef Name = DV.getName();
>> -
>> - // Define variable debug information entry.
>> - DIE *VariableDie = new DIE(DV.getTag());
>> - DbgVariable *AbsVar = DV.getAbstractVariable();
>> - DIE *AbsDIE = AbsVar ? AbsVar->getDIE() : NULL;
>> - if (AbsDIE)
>> - addDIEEntry(VariableDie, dwarf::DW_AT_abstract_origin, AbsDIE);
>> - else {
>> - if (!Name.empty())
>> - addString(VariableDie, dwarf::DW_AT_name, Name);
>> - addSourceLine(VariableDie, DV.getVariable());
>> - addType(VariableDie, DV.getType());
>> - }
>> -
>> - if (DV.isArtificial())
>> - addFlag(VariableDie, dwarf::DW_AT_artificial);
>> -
>> - if (isScopeAbstract) {
>> - DV.setDIE(VariableDie);
>> - return VariableDie;
>> - }
>> -
>> - // Add variable address.
>> -
>> - unsigned Offset = DV.getDotDebugLocOffset();
>> - if (Offset != ~0U) {
>> - addSectionLabel(VariableDie, dwarf::DW_AT_location,
>> - Asm->GetTempSymbol("debug_loc", Offset));
>> - DV.setDIE(VariableDie);
>> - return VariableDie;
>> - }
>> -
>> - // Check if variable is described by a DBG_VALUE instruction.
>> - if (const MachineInstr *DVInsn = DV.getMInsn()) {
>> - assert(DVInsn->getNumOperands() == 3);
>> - if (DVInsn->getOperand(0).isReg()) {
>> - const MachineOperand RegOp = DVInsn->getOperand(0);
>> - // If the second operand is an immediate, this is an indirect value.
>> - if (DVInsn->getOperand(1).isImm()) {
>> - MachineLocation Location(RegOp.getReg(),
>> - DVInsn->getOperand(1).getImm());
>> - addVariableAddress(DV, VariableDie, Location);
>> - } else if (RegOp.getReg())
>> - addVariableAddress(DV, VariableDie, MachineLocation(RegOp.getReg()));
>> - } else if (DVInsn->getOperand(0).isImm())
>> - addConstantValue(VariableDie, DVInsn->getOperand(0), DV.getType());
>> - else if (DVInsn->getOperand(0).isFPImm())
>> - addConstantFPValue(VariableDie, DVInsn->getOperand(0));
>> - else if (DVInsn->getOperand(0).isCImm())
>> - addConstantValue(VariableDie, DVInsn->getOperand(0).getCImm(),
>> - isUnsignedDIType(DD, DV.getType()));
>> -
>> - DV.setDIE(VariableDie);
>> - return VariableDie;
>> - } else {
>> - // .. else use frame index.
>> - int FI = DV.getFrameIndex();
>> - if (FI != ~0) {
>> - unsigned FrameReg = 0;
>> - const TargetFrameLowering *TFI = Asm->TM.getFrameLowering();
>> - int Offset = TFI->getFrameIndexReference(*Asm->MF, FI, FrameReg);
>> - MachineLocation Location(FrameReg, Offset);
>> - addVariableAddress(DV, VariableDie, Location);
>> - }
>> - }
>> -
>> - DV.setDIE(VariableDie);
>> - return VariableDie;
>> -}
>> -
>> -/// constructMemberDIE - Construct member DIE from DIDerivedType.
>> -void Unit::constructMemberDIE(DIE &Buffer, DIDerivedType DT) {
>> - DIE *MemberDie = createAndAddDIE(DT.getTag(), Buffer);
>> - StringRef Name = DT.getName();
>> - if (!Name.empty())
>> - addString(MemberDie, dwarf::DW_AT_name, Name);
>> -
>> - addType(MemberDie, resolve(DT.getTypeDerivedFrom()));
>> -
>> - addSourceLine(MemberDie, DT);
>> -
>> - DIEBlock *MemLocationDie = new (DIEValueAllocator) DIEBlock();
>> - addUInt(MemLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
>> -
>> - if (DT.getTag() == dwarf::DW_TAG_inheritance && DT.isVirtual()) {
>> -
>> - // For C++, virtual base classes are not at fixed offset. Use following
>> - // expression to extract appropriate offset from vtable.
>> - // BaseAddr = ObAddr + *((*ObAddr) - Offset)
>> -
>> - DIEBlock *VBaseLocationDie = new (DIEValueAllocator) DIEBlock();
>> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_dup);
>> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
>> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
>> - addUInt(VBaseLocationDie, dwarf::DW_FORM_udata, DT.getOffsetInBits());
>> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_minus);
>> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
>> - addUInt(VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_plus);
>> -
>> - addBlock(MemberDie, dwarf::DW_AT_data_member_location, VBaseLocationDie);
>> - } else {
>> - uint64_t Size = DT.getSizeInBits();
>> - uint64_t FieldSize = getBaseTypeSize(DD, DT);
>> - uint64_t OffsetInBytes;
>> -
>> - if (Size != FieldSize) {
>> - // Handle bitfield.
>> - addUInt(MemberDie, dwarf::DW_AT_byte_size, None,
>> - getBaseTypeSize(DD, DT) >> 3);
>> - addUInt(MemberDie, dwarf::DW_AT_bit_size, None, DT.getSizeInBits());
>> -
>> - uint64_t Offset = DT.getOffsetInBits();
>> - uint64_t AlignMask = ~(DT.getAlignInBits() - 1);
>> - uint64_t HiMark = (Offset + FieldSize) & AlignMask;
>> - uint64_t FieldOffset = (HiMark - FieldSize);
>> - Offset -= FieldOffset;
>> -
>> - // Maybe we need to work from the other end.
>> - if (Asm->getDataLayout().isLittleEndian())
>> - Offset = FieldSize - (Offset + Size);
>> - addUInt(MemberDie, dwarf::DW_AT_bit_offset, None, Offset);
>> -
>> - // Here WD_AT_data_member_location points to the anonymous
>> - // field that includes this bit field.
>> - OffsetInBytes = FieldOffset >> 3;
>> - } else
>> - // This is not a bitfield.
>> - OffsetInBytes = DT.getOffsetInBits() >> 3;
>> - addUInt(MemberDie, dwarf::DW_AT_data_member_location, None, OffsetInBytes);
>> - }
>> -
>> - if (DT.isProtected())
>> - addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_protected);
>> - else if (DT.isPrivate())
>> - addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_private);
>> - // Otherwise C++ member and base classes are considered public.
>> - else
>> - addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_public);
>> - if (DT.isVirtual())
>> - addUInt(MemberDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1,
>> - dwarf::DW_VIRTUALITY_virtual);
>> -
>> - // Objective-C properties.
>> - if (MDNode *PNode = DT.getObjCProperty())
>> - if (DIEEntry *PropertyDie = getDIEEntry(PNode))
>> - MemberDie->addValue(dwarf::DW_AT_APPLE_property, dwarf::DW_FORM_ref4,
>> - PropertyDie);
>> -
>> - if (DT.isArtificial())
>> - addFlag(MemberDie, dwarf::DW_AT_artificial);
>> -}
>> -
>> -/// getOrCreateStaticMemberDIE - Create new DIE for C++ static member.
>> -DIE *Unit::getOrCreateStaticMemberDIE(DIDerivedType DT) {
>> - if (!DT.Verify())
>> - return NULL;
>> -
>> - // Construct the context before querying for the existence of the DIE in case
>> - // such construction creates the DIE.
>> - DIE *ContextDIE = getOrCreateContextDIE(resolve(DT.getContext()));
>> - assert(dwarf::isType(ContextDIE->getTag()) &&
>> - "Static member should belong to a type.");
>> -
>> - DIE *StaticMemberDIE = getDIE(DT);
>> - if (StaticMemberDIE)
>> - return StaticMemberDIE;
>> -
>> - StaticMemberDIE = createAndAddDIE(DT.getTag(), *ContextDIE, DT);
>> -
>> - DIType Ty = resolve(DT.getTypeDerivedFrom());
>> -
>> - addString(StaticMemberDIE, dwarf::DW_AT_name, DT.getName());
>> - addType(StaticMemberDIE, Ty);
>> - addSourceLine(StaticMemberDIE, DT);
>> - addFlag(StaticMemberDIE, dwarf::DW_AT_external);
>> - addFlag(StaticMemberDIE, dwarf::DW_AT_declaration);
>> -
>> - // FIXME: We could omit private if the parent is a class_type, and
>> - // public if the parent is something else.
>> - if (DT.isProtected())
>> - addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_protected);
>> - else if (DT.isPrivate())
>> - addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_private);
>> - else
>> - addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
>> - dwarf::DW_ACCESS_public);
>> -
>> - if (const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(DT.getConstant()))
>> - addConstantValue(StaticMemberDIE, CI, isUnsignedDIType(DD, Ty));
>> - if (const ConstantFP *CFP = dyn_cast_or_null<ConstantFP>(DT.getConstant()))
>> - addConstantFPValue(StaticMemberDIE, CFP);
>> -
>> - return StaticMemberDIE;
>> -}
>> -
>> -void Unit::emitHeader(const MCSection *ASection, const MCSymbol *ASectionSym) {
>> - Asm->OutStreamer.AddComment("DWARF version number");
>> - Asm->EmitInt16(DD->getDwarfVersion());
>> - Asm->OutStreamer.AddComment("Offset Into Abbrev. Section");
>> - Asm->EmitSectionOffset(Asm->GetTempSymbol(ASection->getLabelBeginName()),
>> - ASectionSym);
>> - Asm->OutStreamer.AddComment("Address Size (in bytes)");
>> - Asm->EmitInt8(Asm->getDataLayout().getPointerSize());
>> -}
>>
>> Removed: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h?rev=196139&view=auto
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h (original)
>> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h (removed)
>> @@ -1,431 +0,0 @@
>> -//===-- llvm/CodeGen/DwarfUnit.h - Dwarf Compile Unit ---*- C++ -*--===//
>> -//
>> -// The LLVM Compiler Infrastructure
>> -//
>> -// This file is distributed under the University of Illinois Open Source
>> -// License. See LICENSE.TXT for details.
>> -//
>> -//===----------------------------------------------------------------------===//
>> -//
>> -// This file contains support for writing dwarf compile unit.
>> -//
>> -//===----------------------------------------------------------------------===//
>> -
>> -#ifndef CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
>> -#define CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
>> -
>> -#include "DIE.h"
>> -#include "DwarfDebug.h"
>> -#include "llvm/ADT/DenseMap.h"
>> -#include "llvm/ADT/Optional.h"
>> -#include "llvm/ADT/OwningPtr.h"
>> -#include "llvm/ADT/StringMap.h"
>> -#include "llvm/DebugInfo.h"
>> -#include "llvm/MC/MCExpr.h"
>> -
>> -namespace llvm {
>> -
>> -class MachineLocation;
>> -class MachineOperand;
>> -class ConstantInt;
>> -class ConstantFP;
>> -class DbgVariable;
>> -
>> -//===----------------------------------------------------------------------===//
>> -/// Unit - This dwarf writer support class manages information associated
>> -/// with a source file.
>> -class Unit {
>> -protected:
>> - /// UniqueID - a numeric ID unique among all CUs in the module
>> - unsigned UniqueID;
>> -
>> - /// Node - MDNode for the compile unit.
>> - DICompileUnit Node;
>> -
>> - /// CUDie - Compile unit debug information entry.
>> - const OwningPtr<DIE> CUDie;
>> -
>> - /// Offset of the CUDie from beginning of debug info section.
>> - unsigned DebugInfoOffset;
>> -
>> - /// Asm - Target of Dwarf emission.
>> - AsmPrinter *Asm;
>> -
>> - // Holders for some common dwarf information.
>> - DwarfDebug *DD;
>> - DwarfUnits *DU;
>> -
>> - /// IndexTyDie - An anonymous type for index type. Owned by CUDie.
>> - DIE *IndexTyDie;
>> -
>> - /// MDNodeToDieMap - Tracks the mapping of unit level debug information
>> - /// variables to debug information entries.
>> - DenseMap<const MDNode *, DIE *> MDNodeToDieMap;
>> -
>> - /// MDNodeToDIEEntryMap - Tracks the mapping of unit level debug information
>> - /// descriptors to debug information entries using a DIEEntry proxy.
>> - DenseMap<const MDNode *, DIEEntry *> MDNodeToDIEEntryMap;
>> -
>> - /// GlobalNames - A map of globally visible named entities for this unit.
>> - StringMap<const DIE *> GlobalNames;
>> -
>> - /// GlobalTypes - A map of globally visible types for this unit.
>> - StringMap<const DIE *> GlobalTypes;
>> -
>> - /// AccelNames - A map of names for the name accelerator table.
>> - StringMap<std::vector<const DIE *> > AccelNames;
>> -
>> - /// AccelObjC - A map of objc spec for the objc accelerator table.
>> - StringMap<std::vector<const DIE *> > AccelObjC;
>> -
>> - /// AccelNamespace - A map of names for the namespace accelerator table.
>> - StringMap<std::vector<const DIE *> > AccelNamespace;
>> -
>> - /// AccelTypes - A map of names for the type accelerator table.
>> - StringMap<std::vector<std::pair<const DIE *, unsigned> > > AccelTypes;
>> -
>> - /// DIEBlocks - A list of all the DIEBlocks in use.
>> - std::vector<DIEBlock *> DIEBlocks;
>> -
>> - /// ContainingTypeMap - This map is used to keep track of subprogram DIEs that
>> - /// need DW_AT_containing_type attribute. This attribute points to a DIE that
>> - /// corresponds to the MDNode mapped with the subprogram DIE.
>> - DenseMap<DIE *, const MDNode *> ContainingTypeMap;
>> -
>> - // DIEValueAllocator - All DIEValues are allocated through this allocator.
>> - BumpPtrAllocator DIEValueAllocator;
>> -
>> - // DIEIntegerOne - A preallocated DIEValue because 1 is used frequently.
>> - DIEInteger *DIEIntegerOne;
>> -
>> - Unit(unsigned UID, DIE *D, DICompileUnit CU, AsmPrinter *A, DwarfDebug *DW,
>> - DwarfUnits *DWU);
>> -
>> -public:
>> - virtual ~Unit();
>> -
>> - // Accessors.
>> - unsigned getUniqueID() const { return UniqueID; }
>> - virtual uint16_t getLanguage() const = 0;
>> - DICompileUnit getNode() const { return Node; }
>> - DIE *getCUDie() const { return CUDie.get(); }
>> - const StringMap<const DIE *> &getGlobalNames() const { return GlobalNames; }
>> - const StringMap<const DIE *> &getGlobalTypes() const { return GlobalTypes; }
>> -
>> - const StringMap<std::vector<const DIE *> > &getAccelNames() const {
>> - return AccelNames;
>> - }
>> - const StringMap<std::vector<const DIE *> > &getAccelObjC() const {
>> - return AccelObjC;
>> - }
>> - const StringMap<std::vector<const DIE *> > &getAccelNamespace() const {
>> - return AccelNamespace;
>> - }
>> - const StringMap<std::vector<std::pair<const DIE *, unsigned> > > &
>> - getAccelTypes() const {
>> - return AccelTypes;
>> - }
>> -
>> - unsigned getDebugInfoOffset() const { return DebugInfoOffset; }
>> - void setDebugInfoOffset(unsigned DbgInfoOff) { DebugInfoOffset = DbgInfoOff; }
>> -
>> - /// hasContent - Return true if this compile unit has something to write out.
>> - bool hasContent() const { return !CUDie->getChildren().empty(); }
>> -
>> - /// getParentContextString - Get a string containing the language specific
>> - /// context for a global name.
>> - std::string getParentContextString(DIScope Context) const;
>> -
>> - /// addGlobalName - Add a new global entity to the compile unit.
>> - ///
>> - void addGlobalName(StringRef Name, DIE *Die, DIScope Context);
>> -
>> - /// addAccelName - Add a new name to the name accelerator table.
>> - void addAccelName(StringRef Name, const DIE *Die);
>> -
>> - /// addAccelObjC - Add a new name to the ObjC accelerator table.
>> - void addAccelObjC(StringRef Name, const DIE *Die);
>> -
>> - /// addAccelNamespace - Add a new name to the namespace accelerator table.
>> - void addAccelNamespace(StringRef Name, const DIE *Die);
>> -
>> - /// addAccelType - Add a new type to the type accelerator table.
>> - void addAccelType(StringRef Name, std::pair<const DIE *, unsigned> Die);
>> -
>> - /// getDIE - Returns the debug information entry map slot for the
>> - /// specified debug variable. We delegate the request to DwarfDebug
>> - /// when the MDNode can be part of the type system, since DIEs for
>> - /// the type system can be shared across CUs and the mappings are
>> - /// kept in DwarfDebug.
>> - DIE *getDIE(DIDescriptor D) const;
>> -
>> - /// getDIEBlock - Returns a fresh newly allocated DIEBlock.
>> - DIEBlock *getDIEBlock() { return new (DIEValueAllocator) DIEBlock(); }
>> -
>> - /// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
>> - /// when the MDNode can be part of the type system, since DIEs for
>> - /// the type system can be shared across CUs and the mappings are
>> - /// kept in DwarfDebug.
>> - void insertDIE(DIDescriptor Desc, DIE *D);
>> -
>> - /// addDie - Adds or interns the DIE to the compile unit.
>> - ///
>> - void addDie(DIE *Buffer) { CUDie->addChild(Buffer); }
>> -
>> - /// addFlag - Add a flag that is true to the DIE.
>> - void addFlag(DIE *Die, dwarf::Attribute Attribute);
>> -
>> - /// addUInt - Add an unsigned integer attribute data and value.
>> - void addUInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
>> - uint64_t Integer);
>> -
>> - void addUInt(DIEBlock *Block, dwarf::Form Form, uint64_t Integer);
>> -
>> - /// addSInt - Add an signed integer attribute data and value.
>> - void addSInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
>> - int64_t Integer);
>> -
>> - void addSInt(DIEBlock *Die, Optional<dwarf::Form> Form, int64_t Integer);
>> -
>> - /// addString - Add a string attribute data and value.
>> - void addString(DIE *Die, dwarf::Attribute Attribute, const StringRef Str);
>> -
>> - /// addLocalString - Add a string attribute data and value.
>> - void addLocalString(DIE *Die, dwarf::Attribute Attribute,
>> - const StringRef Str);
>> -
>> - /// addExpr - Add a Dwarf expression attribute data and value.
>> - void addExpr(DIEBlock *Die, dwarf::Form Form, const MCExpr *Expr);
>> -
>> - /// addLabel - Add a Dwarf label attribute data and value.
>> - void addLabel(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form,
>> - const MCSymbol *Label);
>> -
>> - void addLabel(DIEBlock *Die, dwarf::Form Form, const MCSymbol *Label);
>> -
>> - /// addSectionLabel - Add a Dwarf section label attribute data and value.
>> - ///
>> - void addSectionLabel(DIE *Die, dwarf::Attribute Attribute,
>> - const MCSymbol *Label);
>> -
>> - /// addSectionOffset - Add an offset into a section attribute data and value.
>> - ///
>> - void addSectionOffset(DIE *Die, dwarf::Attribute Attribute, uint64_t Integer);
>> -
>> - /// addOpAddress - Add a dwarf op address data and value using the
>> - /// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index.
>> - void addOpAddress(DIEBlock *Die, const MCSymbol *Label);
>> -
>> - /// addSectionDelta - Add a label delta attribute data and value.
>> - void addSectionDelta(DIE *Die, dwarf::Attribute Attribute, const MCSymbol *Hi,
>> - const MCSymbol *Lo);
>> -
>> - /// addDIEEntry - Add a DIE attribute data and value.
>> - void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIE *Entry);
>> -
>> - /// addDIEEntry - Add a DIE attribute data and value.
>> - void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIEEntry *Entry);
>> -
>> - /// addBlock - Add block data.
>> - void addBlock(DIE *Die, dwarf::Attribute Attribute, DIEBlock *Block);
>> -
>> - /// addSourceLine - Add location information to specified debug information
>> - /// entry.
>> - void addSourceLine(DIE *Die, DIVariable V);
>> - void addSourceLine(DIE *Die, DIGlobalVariable G);
>> - void addSourceLine(DIE *Die, DISubprogram SP);
>> - void addSourceLine(DIE *Die, DIType Ty);
>> - void addSourceLine(DIE *Die, DINameSpace NS);
>> - void addSourceLine(DIE *Die, DIObjCProperty Ty);
>> -
>> - /// addAddress - Add an address attribute to a die based on the location
>> - /// provided.
>> - void addAddress(DIE *Die, dwarf::Attribute Attribute,
>> - const MachineLocation &Location, bool Indirect = false);
>> -
>> - /// addConstantValue - Add constant value entry in variable DIE.
>> - void addConstantValue(DIE *Die, const MachineOperand &MO, DIType Ty);
>> - void addConstantValue(DIE *Die, const ConstantInt *CI, bool Unsigned);
>> - void addConstantValue(DIE *Die, const APInt &Val, bool Unsigned);
>> -
>> - /// addConstantFPValue - Add constant value entry in variable DIE.
>> - void addConstantFPValue(DIE *Die, const MachineOperand &MO);
>> - void addConstantFPValue(DIE *Die, const ConstantFP *CFP);
>> -
>> - /// addTemplateParams - Add template parameters in buffer.
>> - void addTemplateParams(DIE &Buffer, DIArray TParams);
>> -
>> - /// addRegisterOp - Add register operand.
>> - void addRegisterOp(DIEBlock *TheDie, unsigned Reg);
>> -
>> - /// addRegisterOffset - Add register offset.
>> - void addRegisterOffset(DIEBlock *TheDie, unsigned Reg, int64_t Offset);
>> -
>> - /// addComplexAddress - Start with the address based on the location provided,
>> - /// and generate the DWARF information necessary to find the actual variable
>> - /// (navigating the extra location information encoded in the type) based on
>> - /// the starting location. Add the DWARF information to the die.
>> - void addComplexAddress(const DbgVariable &DV, DIE *Die,
>> - dwarf::Attribute Attribute,
>> - const MachineLocation &Location);
>> -
>> - // FIXME: Should be reformulated in terms of addComplexAddress.
>> - /// addBlockByrefAddress - Start with the address based on the location
>> - /// provided, and generate the DWARF information necessary to find the
>> - /// actual Block variable (navigating the Block struct) based on the
>> - /// starting location. Add the DWARF information to the die. Obsolete,
>> - /// please use addComplexAddress instead.
>> - void addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
>> - dwarf::Attribute Attribute,
>> - const MachineLocation &Location);
>> -
>> - /// addVariableAddress - Add DW_AT_location attribute for a
>> - /// DbgVariable based on provided MachineLocation.
>> - void addVariableAddress(const DbgVariable &DV, DIE *Die,
>> - MachineLocation Location);
>> -
>> - /// addType - Add a new type attribute to the specified entity. This takes
>> - /// and attribute parameter because DW_AT_friend attributes are also
>> - /// type references.
>> - void addType(DIE *Entity, DIType Ty,
>> - dwarf::Attribute Attribute = dwarf::DW_AT_type);
>> -
>> - /// getOrCreateNameSpace - Create a DIE for DINameSpace.
>> - DIE *getOrCreateNameSpace(DINameSpace NS);
>> -
>> - /// getOrCreateSubprogramDIE - Create new DIE using SP.
>> - DIE *getOrCreateSubprogramDIE(DISubprogram SP);
>> -
>> - /// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
>> - /// given DIType.
>> - DIE *getOrCreateTypeDIE(const MDNode *N);
>> -
>> - /// getOrCreateContextDIE - Get context owner's DIE.
>> - DIE *createTypeDIE(DICompositeType Ty);
>> -
>> - /// getOrCreateContextDIE - Get context owner's DIE.
>> - DIE *getOrCreateContextDIE(DIScope Context);
>> -
>> - /// constructContainingTypeDIEs - Construct DIEs for types that contain
>> - /// vtables.
>> - void constructContainingTypeDIEs();
>> -
>> - /// constructVariableDIE - Construct a DIE for the given DbgVariable.
>> - DIE *constructVariableDIE(DbgVariable &DV, bool isScopeAbstract);
>> -
>> - /// Create a DIE with the given Tag, add the DIE to its parent, and
>> - /// call insertDIE if MD is not null.
>> - DIE *createAndAddDIE(unsigned Tag, DIE &Parent,
>> - DIDescriptor N = DIDescriptor());
>> -
>> - /// Compute the size of a header for this unit, not including the initial
>> - /// length field.
>> - unsigned getHeaderSize() const {
>> - return sizeof(int16_t) + // DWARF version number
>> - sizeof(int32_t) + // Offset Into Abbrev. Section
>> - sizeof(int8_t); // Pointer Size (in bytes)
>> - }
>> -
>> - /// Emit the header for this unit, not including the initial length field.
>> - void emitHeader(const MCSection *ASection, const MCSymbol *ASectionSym);
>> -
>> -protected:
>> - /// getOrCreateStaticMemberDIE - Create new static data member DIE.
>> - DIE *getOrCreateStaticMemberDIE(DIDerivedType DT);
>> -
>> -private:
>> - /// constructTypeDIE - Construct basic type die from DIBasicType.
>> - void constructTypeDIE(DIE &Buffer, DIBasicType BTy);
>> -
>> - /// constructTypeDIE - Construct derived type die from DIDerivedType.
>> - void constructTypeDIE(DIE &Buffer, DIDerivedType DTy);
>> -
>> - /// constructTypeDIE - Construct type DIE from DICompositeType.
>> - void constructTypeDIE(DIE &Buffer, DICompositeType CTy);
>> -
>> - /// constructSubrangeDIE - Construct subrange DIE from DISubrange.
>> - void constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy);
>> -
>> - /// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
>> - void constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy);
>> -
>> - /// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator.
>> - void constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy);
>> -
>> - /// constructMemberDIE - Construct member DIE from DIDerivedType.
>> - void constructMemberDIE(DIE &Buffer, DIDerivedType DT);
>> -
>> - /// constructTemplateTypeParameterDIE - Construct new DIE for the given
>> - /// DITemplateTypeParameter.
>> - void constructTemplateTypeParameterDIE(DIE &Buffer,
>> - DITemplateTypeParameter TP);
>> -
>> - /// constructTemplateValueParameterDIE - Construct new DIE for the given
>> - /// DITemplateValueParameter.
>> - void constructTemplateValueParameterDIE(DIE &Buffer,
>> - DITemplateValueParameter TVP);
>> -
>> - /// getLowerBoundDefault - Return the default lower bound for an array. If the
>> - /// DWARF version doesn't handle the language, return -1.
>> - int64_t getDefaultLowerBound() const;
>> -
>> - /// getDIEEntry - Returns the debug information entry for the specified
>> - /// debug variable.
>> - DIEEntry *getDIEEntry(const MDNode *N) const {
>> - return MDNodeToDIEEntryMap.lookup(N);
>> - }
>> -
>> - /// insertDIEEntry - Insert debug information entry into the map.
>> - void insertDIEEntry(const MDNode *N, DIEEntry *E) {
>> - MDNodeToDIEEntryMap.insert(std::make_pair(N, E));
>> - }
>> -
>> - // getIndexTyDie - Get an anonymous type for index type.
>> - DIE *getIndexTyDie() { return IndexTyDie; }
>> -
>> - // setIndexTyDie - Set D as anonymous type for index which can be reused
>> - // later.
>> - void setIndexTyDie(DIE *D) { IndexTyDie = D; }
>> -
>> - /// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug
>> - /// information entry.
>> - DIEEntry *createDIEEntry(DIE *Entry);
>> -
>> - /// resolve - Look in the DwarfDebug map for the MDNode that
>> - /// corresponds to the reference.
>> - template <typename T> T resolve(DIRef<T> Ref) const {
>> - return DD->resolve(Ref);
>> - }
>> -
>> - /// If this is a named finished type then include it in the list of types for
>> - /// the accelerator tables.
>> - void updateAcceleratorTables(DIScope Context, DIType Ty, const DIE *TyDIE);
>> -};
>> -
>> -class CompileUnit : public Unit {
>> -public:
>> - CompileUnit(unsigned UID, DIE *D, DICompileUnit Node, AsmPrinter *A,
>> - DwarfDebug *DW, DwarfUnits *DWU);
>> -
>> - /// createGlobalVariableDIE - create global variable DIE.
>> - void createGlobalVariableDIE(DIGlobalVariable GV);
>> -
>> - /// addLabelAddress - Add a dwarf label attribute data and value using
>> - /// either DW_FORM_addr or DW_FORM_GNU_addr_index.
>> - void addLabelAddress(DIE *Die, dwarf::Attribute Attribute, MCSymbol *Label);
>> -
>> - uint16_t getLanguage() const { return getNode().getLanguage(); }
>> -};
>> -
>> -class TypeUnit : public Unit {
>> -private:
>> - uint16_t Language;
>> -
>> -public:
>> - TypeUnit(unsigned UID, DIE *D, uint16_t Language, AsmPrinter *A,
>> - DwarfDebug *DW, DwarfUnits *DWU);
>> -
>> - uint16_t getLanguage() const { return Language; }
>> -};
>> -} // end llvm namespace
>> -#endif
>>
>> Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=196140&r1=196139&r2=196140&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Mon Dec 2 13:33:15 2013
>> @@ -16,7 +16,7 @@
>> #include "DIE.h"
>> #include "DIEHash.h"
>> #include "DwarfAccelTable.h"
>> -#include "DwarfCompileUnit.h"
>> +#include "DwarfUnit.h"
>> #include "llvm/ADT/STLExtras.h"
>> #include "llvm/ADT/Statistic.h"
>> #include "llvm/ADT/StringExtras.h"
>>
>> Copied: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp (from r196139, llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp)
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp?p2=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp&p1=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp&r1=196139&r2=196140&rev=196140&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.cpp Mon Dec 2 13:33:15 2013
>> @@ -13,7 +13,7 @@
>>
>> #define DEBUG_TYPE "dwarfdebug"
>>
>> -#include "DwarfCompileUnit.h"
>> +#include "DwarfUnit.h"
>> #include "DwarfAccelTable.h"
>> #include "DwarfDebug.h"
>> #include "llvm/ADT/APFloat.h"
>>
>> Copied: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.h (from r196139, llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h)
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.h?p2=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfUnit.h&p1=llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h&r1=196139&r2=196140&rev=196140&view=diff
>> ==============================================================================
>> (empty)
>>
>>
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