diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/MC/MCDwarf.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/llvm/lib/MC/MCDwarf.cpp b/llvm/lib/MC/MCDwarf.cpp index 6a14badbc6d..cc32e90ad36 100644 --- a/llvm/lib/MC/MCDwarf.cpp +++ b/llvm/lib/MC/MCDwarf.cpp @@ -674,7 +674,14 @@ static void EmitGenDwarfInfo(MCStreamer *MCOS, // The 2 byte DWARF version. MCOS->EmitIntValue(context.getDwarfVersion(), 2); + // The DWARF v5 header has unit type, address size, abbrev offset. + // Earlier versions have abbrev offset, address size. const MCAsmInfo &AsmInfo = *context.getAsmInfo(); + int AddrSize = AsmInfo.getPointerSize(); + if (context.getDwarfVersion() >= 5) { + MCOS->EmitIntValue(dwarf::DW_UT_compile, 1); + MCOS->EmitIntValue(AddrSize, 1); + } // The 4 byte offset to the debug abbrevs from the start of the .debug_abbrev, // it is at the start of that section so this is zero. if (AbbrevSectionSymbol == nullptr) @@ -682,11 +689,8 @@ static void EmitGenDwarfInfo(MCStreamer *MCOS, else MCOS->EmitSymbolValue(AbbrevSectionSymbol, 4, AsmInfo.needsDwarfSectionOffsetDirective()); - - const MCAsmInfo *asmInfo = context.getAsmInfo(); - int AddrSize = asmInfo->getPointerSize(); - // The 1 byte size of an address. - MCOS->EmitIntValue(AddrSize, 1); + if (context.getDwarfVersion() <= 4) + MCOS->EmitIntValue(AddrSize, 1); // Second part: the compile_unit DIE. |
