[Lldb-commits] [lldb] df4f828 - [lldb][NFC] Replace lldb's DWARFFormValue::ValueType with llvm's (#109853)

via lldb-commits lldb-commits at lists.llvm.org
Tue Sep 24 14:27:12 PDT 2024


Author: Zequan Wu
Date: 2024-09-24T17:27:09-04:00
New Revision: df4f828938db807fc7c4611896fe9659af482e81

URL: https://github.com/llvm/llvm-project/commit/df4f828938db807fc7c4611896fe9659af482e81
DIFF: https://github.com/llvm/llvm-project/commit/df4f828938db807fc7c4611896fe9659af482e81.diff

LOG: [lldb][NFC] Replace lldb's DWARFFormValue::ValueType with llvm's (#109853)

Added: 
    

Modified: 
    lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
    lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h

Removed: 
    


################################################################################
diff  --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
index e1f73f1997e369..f58c6262349c6f 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.cpp
@@ -25,7 +25,7 @@ using namespace lldb_private::plugin::dwarf;
 void DWARFFormValue::Clear() {
   m_unit = nullptr;
   m_form = dw_form_t(0);
-  m_value = ValueTypeTag();
+  m_value = ValueType();
 }
 
 bool DWARFFormValue::ExtractValue(const DWARFDataExtractor &data,
@@ -44,68 +44,68 @@ bool DWARFFormValue::ExtractValue(const DWARFDataExtractor &data,
     switch (m_form) {
     case DW_FORM_addr:
       assert(m_unit);
-      m_value.value.uval =
+      m_value.uval =
           data.GetMaxU64(offset_ptr, DWARFUnit::GetAddressByteSize(m_unit));
       break;
     case DW_FORM_block1:
-      m_value.value.uval = data.GetU8(offset_ptr);
+      m_value.uval = data.GetU8(offset_ptr);
       is_block = true;
       break;
     case DW_FORM_block2:
-      m_value.value.uval = data.GetU16(offset_ptr);
+      m_value.uval = data.GetU16(offset_ptr);
       is_block = true;
       break;
     case DW_FORM_block4:
-      m_value.value.uval = data.GetU32(offset_ptr);
+      m_value.uval = data.GetU32(offset_ptr);
       is_block = true;
       break;
     case DW_FORM_data16:
-      m_value.value.uval = 16;
+      m_value.uval = 16;
       is_block = true;
       break;
     case DW_FORM_exprloc:
     case DW_FORM_block:
-      m_value.value.uval = data.GetULEB128(offset_ptr);
+      m_value.uval = data.GetULEB128(offset_ptr);
       is_block = true;
       break;
     case DW_FORM_string:
-      m_value.value.cstr = data.GetCStr(offset_ptr);
+      m_value.cstr = data.GetCStr(offset_ptr);
       break;
     case DW_FORM_sdata:
-      m_value.value.sval = data.GetSLEB128(offset_ptr);
+      m_value.sval = data.GetSLEB128(offset_ptr);
       break;
     case DW_FORM_strp:
     case DW_FORM_line_strp:
     case DW_FORM_sec_offset:
-      m_value.value.uval = data.GetMaxU64(offset_ptr, 4);
+      m_value.uval = data.GetMaxU64(offset_ptr, 4);
       break;
     case DW_FORM_addrx1:
     case DW_FORM_strx1:
     case DW_FORM_ref1:
     case DW_FORM_data1:
     case DW_FORM_flag:
-      m_value.value.uval = data.GetU8(offset_ptr);
+      m_value.uval = data.GetU8(offset_ptr);
       break;
     case DW_FORM_addrx2:
     case DW_FORM_strx2:
     case DW_FORM_ref2:
     case DW_FORM_data2:
-      m_value.value.uval = data.GetU16(offset_ptr);
+      m_value.uval = data.GetU16(offset_ptr);
       break;
     case DW_FORM_addrx3:
     case DW_FORM_strx3:
-      m_value.value.uval = data.GetMaxU64(offset_ptr, 3);
+      m_value.uval = data.GetMaxU64(offset_ptr, 3);
       break;
     case DW_FORM_addrx4:
     case DW_FORM_strx4:
     case DW_FORM_ref4:
     case DW_FORM_data4:
-      m_value.value.uval = data.GetU32(offset_ptr);
+      m_value.uval = data.GetU32(offset_ptr);
       break;
     case DW_FORM_data8:
     case DW_FORM_ref8:
     case DW_FORM_ref_sig8:
-      m_value.value.uval = data.GetU64(offset_ptr);
+      m_value.uval = data.GetU64(offset_ptr);
       break;
     case DW_FORM_addrx:
     case DW_FORM_loclistx:
@@ -115,7 +115,7 @@ bool DWARFFormValue::ExtractValue(const DWARFDataExtractor &data,
     case DW_FORM_ref_udata:
     case DW_FORM_GNU_str_index:
     case DW_FORM_GNU_addr_index:
-      m_value.value.uval = data.GetULEB128(offset_ptr);
+      m_value.uval = data.GetULEB128(offset_ptr);
       break;
     case DW_FORM_ref_addr:
       assert(m_unit);
@@ -123,14 +123,14 @@ bool DWARFFormValue::ExtractValue(const DWARFDataExtractor &data,
         ref_addr_size = m_unit->GetAddressByteSize();
       else
         ref_addr_size = 4;
-      m_value.value.uval = data.GetMaxU64(offset_ptr, ref_addr_size);
+      m_value.uval = data.GetMaxU64(offset_ptr, ref_addr_size);
       break;
     case DW_FORM_indirect:
       m_form = static_cast<dw_form_t>(data.GetULEB128(offset_ptr));
       indirect = true;
       break;
     case DW_FORM_flag_present:
-      m_value.value.uval = 1;
+      m_value.uval = 1;
       break;
     default:
       return false;
@@ -138,9 +138,9 @@ bool DWARFFormValue::ExtractValue(const DWARFDataExtractor &data,
   } while (indirect);
 
   if (is_block) {
-    m_value.data = data.PeekData(*offset_ptr, m_value.value.uval);
+    m_value.data = data.PeekData(*offset_ptr, m_value.uval);
     if (m_value.data != nullptr) {
-      *offset_ptr += m_value.value.uval;
+      *offset_ptr += m_value.uval;
     }
   }
 
@@ -461,23 +461,23 @@ const char *DWARFFormValue::AsCString() const {
   DWARFContext &context = m_unit->GetSymbolFileDWARF().GetDWARFContext();
 
   if (m_form == DW_FORM_string)
-    return m_value.value.cstr;
+    return m_value.cstr;
   if (m_form == DW_FORM_strp)
-    return context.getOrLoadStrData().PeekCStr(m_value.value.uval);
+    return context.getOrLoadStrData().PeekCStr(m_value.uval);
 
   if (m_form == DW_FORM_GNU_str_index || m_form == DW_FORM_strx ||
       m_form == DW_FORM_strx1 || m_form == DW_FORM_strx2 ||
       m_form == DW_FORM_strx3 || m_form == DW_FORM_strx4) {
 
     std::optional<uint64_t> offset =
-        m_unit->GetStringOffsetSectionItem(m_value.value.uval);
+        m_unit->GetStringOffsetSectionItem(m_value.uval);
     if (!offset)
       return nullptr;
     return context.getOrLoadStrData().PeekCStr(*offset);
   }
 
   if (m_form == DW_FORM_line_strp)
-    return context.getOrLoadLineStrData().PeekCStr(m_value.value.uval);
+    return context.getOrLoadLineStrData().PeekCStr(m_value.uval);
 
   return nullptr;
 }
@@ -495,14 +495,14 @@ dw_addr_t DWARFFormValue::Address() const {
 
   uint32_t index_size = m_unit->GetAddressByteSize();
   dw_offset_t addr_base = m_unit->GetAddrBase();
-  lldb::offset_t offset = addr_base + m_value.value.uval * index_size;
+  lldb::offset_t offset = addr_base + m_value.uval * index_size;
   return symbol_file.GetDWARFContext().getOrLoadAddrData().GetMaxU64(
       &offset, index_size);
 }
 
 std::pair<DWARFUnit *, uint64_t>
 DWARFFormValue::ReferencedUnitAndOffset() const {
-  uint64_t value = m_value.value.uval;
+  uint64_t value = m_value.uval;
   switch (m_form) {
   case DW_FORM_ref1:
   case DW_FORM_ref2:
@@ -550,7 +550,7 @@ DWARFDIE DWARFFormValue::Reference() const {
 }
 
 uint64_t DWARFFormValue::Reference(dw_offset_t base_offset) const {
-  uint64_t value = m_value.value.uval;
+  uint64_t value = m_value.uval;
   switch (m_form) {
   case DW_FORM_ref1:
   case DW_FORM_ref2:

diff  --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h
index fdd5b3c278a4e8..8ab9163e645fea 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFFormValue.h
@@ -10,7 +10,7 @@
 #define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFFORMVALUE_H
 
 #include "DWARFDataExtractor.h"
-#include <cstddef>
+#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"
 #include <optional>
 
 namespace lldb_private::plugin {
@@ -21,17 +21,7 @@ class DWARFDIE;
 
 class DWARFFormValue {
 public:
-  typedef struct ValueTypeTag {
-    ValueTypeTag() : value() { value.uval = 0; }
-
-    union {
-      uint64_t uval;
-      int64_t sval;
-      const char *cstr;
-    } value;
-    const uint8_t *data = nullptr;
-  } ValueType;
-
+  typedef llvm::DWARFFormValue::ValueType ValueType;
   enum {
     eValueTypeInvalid = 0,
     eValueTypeUnsigned,
@@ -67,11 +57,11 @@ class DWARFFormValue {
   std::pair<DWARFUnit *, uint64_t> ReferencedUnitAndOffset() const;
 
   uint64_t Reference(dw_offset_t offset) const;
-  bool Boolean() const { return m_value.value.uval != 0; }
-  uint64_t Unsigned() const { return m_value.value.uval; }
-  void SetUnsigned(uint64_t uval) { m_value.value.uval = uval; }
-  int64_t Signed() const { return m_value.value.sval; }
-  void SetSigned(int64_t sval) { m_value.value.sval = sval; }
+  bool Boolean() const { return m_value.uval != 0; }
+  uint64_t Unsigned() const { return m_value.uval; }
+  void SetUnsigned(uint64_t uval) { m_value.uval = uval; }
+  int64_t Signed() const { return m_value.sval; }
+  void SetSigned(int64_t sval) { m_value.sval = sval; }
   const char *AsCString() const;
   dw_addr_t Address() const;
   bool IsValid() const { return m_form != 0; }


        


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