diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | 254 |
1 files changed, 136 insertions, 118 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp index 8344051..a81d56e 100644 --- a/contrib/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp +++ b/contrib/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp @@ -1,4 +1,4 @@ -//===-- llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp --*- C++ -*--===// +//===- llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp ----------------------===// // // The LLVM Compiler Infrastructure // @@ -12,37 +12,82 @@ //===----------------------------------------------------------------------===// #include "CodeViewDebug.h" +#include "llvm/ADT/APSInt.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/DenseMap.h" +#include "llvm/ADT/DenseSet.h" +#include "llvm/ADT/MapVector.h" +#include "llvm/ADT/None.h" +#include "llvm/ADT/Optional.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/StringRef.h" #include "llvm/ADT/TinyPtrVector.h" -#include "llvm/DebugInfo/CodeView/CVTypeDumper.h" +#include "llvm/ADT/Triple.h" +#include "llvm/ADT/Twine.h" +#include "llvm/BinaryFormat/COFF.h" +#include "llvm/BinaryFormat/Dwarf.h" +#include "llvm/CodeGen/AsmPrinter.h" +#include "llvm/CodeGen/LexicalScopes.h" +#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineInstr.h" +#include "llvm/CodeGen/MachineModuleInfo.h" +#include "llvm/CodeGen/MachineOperand.h" +#include "llvm/Config/llvm-config.h" #include "llvm/DebugInfo/CodeView/CVTypeVisitor.h" #include "llvm/DebugInfo/CodeView/CodeView.h" +#include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h" #include "llvm/DebugInfo/CodeView/Line.h" #include "llvm/DebugInfo/CodeView/SymbolRecord.h" -#include "llvm/DebugInfo/CodeView/TypeDatabase.h" #include "llvm/DebugInfo/CodeView/TypeDumpVisitor.h" #include "llvm/DebugInfo/CodeView/TypeIndex.h" #include "llvm/DebugInfo/CodeView/TypeRecord.h" -#include "llvm/DebugInfo/CodeView/TypeVisitorCallbacks.h" -#include "llvm/DebugInfo/MSF/ByteStream.h" -#include "llvm/DebugInfo/MSF/StreamReader.h" +#include "llvm/DebugInfo/CodeView/TypeTableCollection.h" #include "llvm/IR/Constants.h" +#include "llvm/IR/DataLayout.h" +#include "llvm/IR/DebugInfoMetadata.h" +#include "llvm/IR/DebugLoc.h" +#include "llvm/IR/Function.h" +#include "llvm/IR/GlobalValue.h" +#include "llvm/IR/GlobalVariable.h" +#include "llvm/IR/Metadata.h" +#include "llvm/IR/Module.h" #include "llvm/MC/MCAsmInfo.h" -#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCContext.h" #include "llvm/MC/MCSectionCOFF.h" +#include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCSymbol.h" -#include "llvm/Support/COFF.h" +#include "llvm/Support/BinaryByteStream.h" +#include "llvm/Support/BinaryStreamReader.h" +#include "llvm/Support/Casting.h" +#include "llvm/Support/Compiler.h" +#include "llvm/Support/Endian.h" +#include "llvm/Support/Error.h" +#include "llvm/Support/ErrorHandling.h" #include "llvm/Support/ScopedPrinter.h" +#include "llvm/Support/SMLoc.h" #include "llvm/Target/TargetFrameLowering.h" +#include "llvm/Target/TargetLoweringObjectFile.h" +#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetRegisterInfo.h" #include "llvm/Target/TargetSubtargetInfo.h" +#include <algorithm> +#include <cassert> +#include <cctype> +#include <cstddef> +#include <cstdint> +#include <iterator> +#include <limits> +#include <string> +#include <utility> +#include <vector> using namespace llvm; using namespace llvm::codeview; -using namespace llvm::msf; CodeViewDebug::CodeViewDebug(AsmPrinter *AP) - : DebugHandlerBase(AP), OS(*Asm->OutStreamer), Allocator(), - TypeTable(Allocator), CurFn(nullptr) { + : DebugHandlerBase(AP), OS(*Asm->OutStreamer), TypeTable(Allocator) { // If module doesn't have named metadata anchors or COFF debug section // is not available, skip any debug info related stuff. if (!MMI->getModule()->getNamedMetadata("llvm.dbg.cu") || @@ -178,7 +223,8 @@ static const DISubprogram *getQualifiedNameComponents( static std::string getQualifiedName(ArrayRef<StringRef> QualifiedNameComponents, StringRef TypeName) { std::string FullyQualifiedName; - for (StringRef QualifiedNameComponent : reverse(QualifiedNameComponents)) { + for (StringRef QualifiedNameComponent : + llvm::reverse(QualifiedNameComponents)) { FullyQualifiedName.append(QualifiedNameComponent); FullyQualifiedName.append("::"); } @@ -238,7 +284,7 @@ TypeIndex CodeViewDebug::getFuncIdForSubprogram(const DISubprogram *SP) { // The display name includes function template arguments. Drop them to match // MSVC. - StringRef DisplayName = SP->getDisplayName().split('<').first; + StringRef DisplayName = SP->getName().split('<').first; const DIScope *Scope = SP->getScope().resolve(); TypeIndex TI; @@ -319,7 +365,7 @@ static void addLocIfNotPresent(SmallVectorImpl<const DILocation *> &Locs, void CodeViewDebug::maybeRecordLocation(const DebugLoc &DL, const MachineFunction *MF) { // Skip this instruction if it has the same location as the previous one. - if (DL == CurFn->LastLoc) + if (!DL || DL == PrevInstLoc) return; const DIScope *Scope = DL.get()->getScope(); @@ -339,11 +385,11 @@ void CodeViewDebug::maybeRecordLocation(const DebugLoc &DL, if (!CurFn->HaveLineInfo) CurFn->HaveLineInfo = true; unsigned FileId = 0; - if (CurFn->LastLoc.get() && CurFn->LastLoc->getFile() == DL->getFile()) + if (PrevInstLoc.get() && PrevInstLoc->getFile() == DL->getFile()) FileId = CurFn->LastFileId; else FileId = CurFn->LastFileId = maybeRecordFile(DL->getFile()); - CurFn->LastLoc = DL; + PrevInstLoc = DL; unsigned FuncId = CurFn->FuncId; if (const DILocation *SiteLoc = DL->getInlinedAt()) { @@ -393,7 +439,7 @@ void CodeViewDebug::endModule() { // subprograms. switchToDebugSectionForSymbol(nullptr); - MCSymbol *CompilerInfo = beginCVSubsection(ModuleSubstreamKind::Symbols); + MCSymbol *CompilerInfo = beginCVSubsection(DebugSubsectionKind::Symbols); emitCompilerInformation(); endCVSubsection(CompilerInfo); @@ -417,7 +463,7 @@ void CodeViewDebug::endModule() { // Emit UDT records for any types used by global variables. if (!GlobalUDTs.empty()) { - MCSymbol *SymbolsEnd = beginCVSubsection(ModuleSubstreamKind::Symbols); + MCSymbol *SymbolsEnd = beginCVSubsection(DebugSubsectionKind::Symbols); emitDebugInfoForUDTs(GlobalUDTs); endCVSubsection(SymbolsEnd); } @@ -469,17 +515,21 @@ void CodeViewDebug::emitTypeInformation() { CommentPrefix += ' '; } - TypeDatabase TypeDB; - CVTypeDumper CVTD(TypeDB); - TypeTable.ForEachRecord([&](TypeIndex Index, ArrayRef<uint8_t> Record) { + TypeTableCollection Table(TypeTable.records()); + Optional<TypeIndex> B = Table.getFirst(); + while (B) { + // This will fail if the record data is invalid. + CVType Record = Table.getType(*B); + if (OS.isVerboseAsm()) { // Emit a block comment describing the type record for readability. SmallString<512> CommentBlock; raw_svector_ostream CommentOS(CommentBlock); ScopedPrinter SP(CommentOS); SP.setPrefix(CommentPrefix); - TypeDumpVisitor TDV(TypeDB, &SP, false); - Error E = CVTD.dump(Record, TDV); + TypeDumpVisitor TDV(Table, &SP, false); + + Error E = codeview::visitTypeRecord(Record, *B, TDV); if (E) { logAllUnhandledErrors(std::move(E), errs(), "error: "); llvm_unreachable("produced malformed type record"); @@ -489,29 +539,10 @@ void CodeViewDebug::emitTypeInformation() { // newline. OS.emitRawComment( CommentOS.str().drop_front(CommentPrefix.size() - 1).rtrim()); - } else { -#ifndef NDEBUG - // Assert that the type data is valid even if we aren't dumping - // comments. The MSVC linker doesn't do much type record validation, - // so the first link of an invalid type record can succeed while - // subsequent links will fail with LNK1285. - ByteStream Stream(Record); - CVTypeArray Types; - StreamReader Reader(Stream); - Error E = Reader.readArray(Types, Reader.getLength()); - if (!E) { - TypeVisitorCallbacks C; - E = CVTypeVisitor(C).visitTypeStream(Types); - } - if (E) { - logAllUnhandledErrors(std::move(E), errs(), "error: "); - llvm_unreachable("produced malformed type record"); - } -#endif } - StringRef S(reinterpret_cast<const char *>(Record.data()), Record.size()); - OS.EmitBinaryData(S); - }); + OS.EmitBinaryData(Record.str_data()); + B = Table.getNext(*B); + } } namespace { @@ -586,7 +617,7 @@ static CPUType mapArchToCVCPUType(Triple::ArchType Type) { } } -} // anonymous namespace +} // end anonymous namespace void CodeViewDebug::emitCompilerInformation() { MCContext &Context = MMI->getContext(); @@ -645,7 +676,7 @@ void CodeViewDebug::emitInlineeLinesSubsection() { return; OS.AddComment("Inlinee lines subsection"); - MCSymbol *InlineEnd = beginCVSubsection(ModuleSubstreamKind::InlineeLines); + MCSymbol *InlineEnd = beginCVSubsection(DebugSubsectionKind::InlineeLines); // We don't provide any extra file info. // FIXME: Find out if debuggers use this info. @@ -658,7 +689,7 @@ void CodeViewDebug::emitInlineeLinesSubsection() { OS.AddBlankLine(); unsigned FileId = maybeRecordFile(SP->getFile()); - OS.AddComment("Inlined function " + SP->getDisplayName() + " starts at " + + OS.AddComment("Inlined function " + SP->getName() + " starts at " + SP->getFilename() + Twine(':') + Twine(SP->getLine())); OS.AddBlankLine(); // The filechecksum table uses 8 byte entries for now, and file ids start at @@ -760,17 +791,17 @@ void CodeViewDebug::emitDebugInfoForFunction(const Function *GV, // If we have a display name, build the fully qualified name by walking the // chain of scopes. - if (!SP->getDisplayName().empty()) + if (!SP->getName().empty()) FuncName = - getFullyQualifiedName(SP->getScope().resolve(), SP->getDisplayName()); + getFullyQualifiedName(SP->getScope().resolve(), SP->getName()); // If our DISubprogram name is empty, use the mangled name. if (FuncName.empty()) - FuncName = GlobalValue::getRealLinkageName(GV->getName()); + FuncName = GlobalValue::dropLLVMManglingEscape(GV->getName()); // Emit a symbol subsection, required by VS2012+ to find function boundaries. OS.AddComment("Symbol subsection for " + Twine(FuncName)); - MCSymbol *SymbolsEnd = beginCVSubsection(ModuleSubstreamKind::Symbols); + MCSymbol *SymbolsEnd = beginCVSubsection(DebugSubsectionKind::Symbols); { MCSymbol *ProcRecordBegin = MMI->getContext().createTempSymbol(), *ProcRecordEnd = MMI->getContext().createTempSymbol(); @@ -887,13 +918,21 @@ void CodeViewDebug::collectVariableInfoFromMFTable( if (!Scope) continue; + // If the variable has an attached offset expression, extract it. + // FIXME: Try to handle DW_OP_deref as well. + int64_t ExprOffset = 0; + if (VI.Expr) + if (!VI.Expr->extractIfOffset(ExprOffset)) + continue; + // Get the frame register used and the offset. unsigned FrameReg = 0; int FrameOffset = TFI->getFrameIndexReference(*Asm->MF, VI.Slot, FrameReg); uint16_t CVReg = TRI->getCodeViewRegNum(FrameReg); // Calculate the label ranges. - LocalVarDefRange DefRange = createDefRangeMem(CVReg, FrameOffset); + LocalVarDefRange DefRange = + createDefRangeMem(CVReg, FrameOffset + ExprOffset); for (const InsnRange &Range : Scope->getRanges()) { const MCSymbol *Begin = getLabelBeforeInsn(Range.first); const MCSymbol *End = getLabelAfterInsn(Range.second); @@ -948,10 +987,10 @@ void CodeViewDebug::collectVariableInfo(const DISubprogram *SP) { // Handle fragments. auto Fragment = DIExpr->getFragmentInfo(); - if (DIExpr && Fragment) { + if (Fragment) { IsSubfield = true; StructOffset = Fragment->OffsetInBits / 8; - } else if (DIExpr && DIExpr->getNumElements() > 0) { + } else if (DIExpr->getNumElements() > 0) { continue; // Ignore unrecognized exprs. } @@ -1014,14 +1053,7 @@ void CodeViewDebug::collectVariableInfo(const DISubprogram *SP) { } } -void CodeViewDebug::beginFunction(const MachineFunction *MF) { - assert(!CurFn && "Can't process two functions at once!"); - - if (!Asm || !MMI->hasDebugInfo() || !MF->getFunction()->getSubprogram()) - return; - - DebugHandlerBase::beginFunction(MF); - +void CodeViewDebug::beginFunctionImpl(const MachineFunction *MF) { const Function *GV = MF->getFunction(); assert(FnDebugInfo.count(GV) == false); CurFn = &FnDebugInfo[GV]; @@ -1038,11 +1070,11 @@ void CodeViewDebug::beginFunction(const MachineFunction *MF) { bool EmptyPrologue = true; for (const auto &MBB : *MF) { for (const auto &MI : MBB) { - if (!MI.isDebugValue() && !MI.getFlag(MachineInstr::FrameSetup) && + if (!MI.isMetaInstruction() && !MI.getFlag(MachineInstr::FrameSetup) && MI.getDebugLoc()) { PrologEndLoc = MI.getDebugLoc(); break; - } else if (!MI.isDebugValue()) { + } else if (!MI.isMetaInstruction()) { EmptyPrologue = false; } } @@ -1144,33 +1176,12 @@ TypeIndex CodeViewDebug::lowerTypeArray(const DICompositeType *Ty) { DITypeRef ElementTypeRef = Ty->getBaseType(); TypeIndex ElementTypeIndex = getTypeIndex(ElementTypeRef); // IndexType is size_t, which depends on the bitness of the target. - TypeIndex IndexType = Asm->MAI->getPointerSize() == 8 + TypeIndex IndexType = Asm->TM.getPointerSize() == 8 ? TypeIndex(SimpleTypeKind::UInt64Quad) : TypeIndex(SimpleTypeKind::UInt32Long); uint64_t ElementSize = getBaseTypeSize(ElementTypeRef) / 8; - - // We want to assert that the element type multiplied by the array lengths - // match the size of the overall array. However, if we don't have complete - // type information for the base type, we can't make this assertion. This - // happens if limited debug info is enabled in this case: - // struct VTableOptzn { VTableOptzn(); virtual ~VTableOptzn(); }; - // VTableOptzn array[3]; - // The DICompositeType of VTableOptzn will have size zero, and the array will - // have size 3 * sizeof(void*), and we should avoid asserting. - // - // There is a related bug in the front-end where an array of a structure, - // which was declared as incomplete structure first, ends up not getting a - // size assigned to it. (PR28303) - // Example: - // struct A(*p)[3]; - // struct A { int f; } a[3]; - bool PartiallyIncomplete = false; - if (Ty->getSizeInBits() == 0 || ElementSize == 0) { - PartiallyIncomplete = true; - } - // Add subranges to array type. DINodeArray Elements = Ty->getElements(); for (int i = Elements.size() - 1; i >= 0; --i) { @@ -1185,16 +1196,14 @@ TypeIndex CodeViewDebug::lowerTypeArray(const DICompositeType *Ty) { // Variable Length Array (VLA) has Count equal to '-1'. // Replace with Count '1', assume it is the minimum VLA length. // FIXME: Make front-end support VLA subrange and emit LF_DIMVARLU. - if (Count == -1) { + if (Count == -1) Count = 1; - PartiallyIncomplete = true; - } // Update the element size and element type index for subsequent subranges. ElementSize *= Count; // If this is the outermost array, use the size from the array. It will be - // more accurate if PartiallyIncomplete is true. + // more accurate if we had a VLA or an incomplete element type size. uint64_t ArraySize = (i == 0 && ElementSize == 0) ? Ty->getSizeInBits() / 8 : ElementSize; @@ -1203,9 +1212,6 @@ TypeIndex CodeViewDebug::lowerTypeArray(const DICompositeType *Ty) { ElementTypeIndex = TypeTable.writeKnownType(AR); } - (void)PartiallyIncomplete; - assert(PartiallyIncomplete || ElementSize == (Ty->getSizeInBits() / 8)); - return ElementTypeIndex; } @@ -1376,8 +1382,8 @@ TypeIndex CodeViewDebug::lowerTypeMemberPointer(const DIDerivedType *Ty) { assert(Ty->getTag() == dwarf::DW_TAG_ptr_to_member_type); TypeIndex ClassTI = getTypeIndex(Ty->getClassType()); TypeIndex PointeeTI = getTypeIndex(Ty->getBaseType(), Ty->getClassType()); - PointerKind PK = Asm->MAI->getPointerSize() == 8 ? PointerKind::Near64 - : PointerKind::Near32; + PointerKind PK = Asm->TM.getPointerSize() == 8 ? PointerKind::Near64 + : PointerKind::Near32; bool IsPMF = isa<DISubroutineType>(Ty->getBaseType()); PointerMode PM = IsPMF ? PointerMode::PointerToMemberFunction : PointerMode::PointerToDataMember; @@ -1492,7 +1498,8 @@ TypeIndex CodeViewDebug::lowerTypeMemberFunction(const DISubroutineType *Ty, } TypeIndex CodeViewDebug::lowerTypeVFTableShape(const DIDerivedType *Ty) { - unsigned VSlotCount = Ty->getSizeInBits() / (8 * Asm->MAI->getPointerSize()); + unsigned VSlotCount = + Ty->getSizeInBits() / (8 * Asm->MAI->getCodePointerSize()); SmallVector<VFTableSlotKind, 4> Slots(VSlotCount, VFTableSlotKind::Near); VFTableShapeRecord VFTSR(Slots); @@ -1600,7 +1607,7 @@ TypeIndex CodeViewDebug::lowerTypeEnum(const DICompositeType *Ty) { EnumeratorCount++; } } - FTI = FLRB.end(); + FTI = FLRB.end(true); } std::string FullName = getFullyQualifiedName(Ty); @@ -1620,11 +1627,11 @@ struct llvm::ClassInfo { uint64_t BaseOffset; }; // [MemberInfo] - typedef std::vector<MemberInfo> MemberList; + using MemberList = std::vector<MemberInfo>; - typedef TinyPtrVector<const DISubprogram *> MethodsList; + using MethodsList = TinyPtrVector<const DISubprogram *>; // MethodName -> MethodsList - typedef MapVector<MDString *, MethodsList> MethodsMap; + using MethodsMap = MapVector<MDString *, MethodsList>; /// Base classes. std::vector<const DIDerivedType *> Inheritance; @@ -1736,10 +1743,12 @@ TypeIndex CodeViewDebug::lowerCompleteTypeClass(const DICompositeType *Ty) { SizeInBytes, FullName, Ty->getIdentifier()); TypeIndex ClassTI = TypeTable.writeKnownType(CR); - StringIdRecord SIDR(TypeIndex(0x0), getFullFilepath(Ty->getFile())); - TypeIndex SIDI = TypeTable.writeKnownType(SIDR); - UdtSourceLineRecord USLR(ClassTI, SIDI, Ty->getLine()); - TypeTable.writeKnownType(USLR); + if (const auto *File = Ty->getFile()) { + StringIdRecord SIDR(TypeIndex(0x0), getFullFilepath(File)); + TypeIndex SIDI = TypeTable.writeKnownType(SIDR); + UdtSourceLineRecord USLR(ClassTI, SIDI, Ty->getLine()); + TypeTable.writeKnownType(USLR); + } addToUDTs(Ty, ClassTI); @@ -1887,7 +1896,7 @@ CodeViewDebug::lowerRecordFieldList(const DICompositeType *Ty) { translateMethodOptionFlags(SP), VFTableOffset, Name)); MemberCount++; } - assert(Methods.size() > 0 && "Empty methods map entry"); + assert(!Methods.empty() && "Empty methods map entry"); if (Methods.size() == 1) FLBR.writeMemberType(Methods[0]); else { @@ -1905,7 +1914,7 @@ CodeViewDebug::lowerRecordFieldList(const DICompositeType *Ty) { MemberCount++; } - TypeIndex FieldTI = FLBR.end(); + TypeIndex FieldTI = FLBR.end(true); return std::make_tuple(FieldTI, Info.VShapeTI, MemberCount, !Info.NestedClasses.empty()); } @@ -2115,18 +2124,13 @@ void CodeViewDebug::emitLocalVariable(const LocalVariable &Var) { } } -void CodeViewDebug::endFunction(const MachineFunction *MF) { - if (!Asm || !CurFn) // We haven't created any debug info for this function. - return; - +void CodeViewDebug::endFunctionImpl(const MachineFunction *MF) { const Function *GV = MF->getFunction(); assert(FnDebugInfo.count(GV)); assert(CurFn == &FnDebugInfo[GV]); collectVariableInfo(GV->getSubprogram()); - DebugHandlerBase::endFunction(MF); - // Don't emit anything if we don't have any line tables. if (!CurFn->HaveLineInfo) { FnDebugInfo.erase(GV); @@ -2146,13 +2150,27 @@ void CodeViewDebug::beginInstruction(const MachineInstr *MI) { if (!Asm || !CurFn || MI->isDebugValue() || MI->getFlag(MachineInstr::FrameSetup)) return; + + // If the first instruction of a new MBB has no location, find the first + // instruction with a location and use that. DebugLoc DL = MI->getDebugLoc(); - if (DL == PrevInstLoc || !DL) + if (!DL && MI->getParent() != PrevInstBB) { + for (const auto &NextMI : *MI->getParent()) { + DL = NextMI.getDebugLoc(); + if (DL) + break; + } + } + PrevInstBB = MI->getParent(); + + // If we still don't have a debug location, don't record a location. + if (!DL) return; + maybeRecordLocation(DL, Asm->MF); } -MCSymbol *CodeViewDebug::beginCVSubsection(ModuleSubstreamKind Kind) { +MCSymbol *CodeViewDebug::beginCVSubsection(DebugSubsectionKind Kind) { MCSymbol *BeginLabel = MMI->getContext().createTempSymbol(), *EndLabel = MMI->getContext().createTempSymbol(); OS.EmitIntValue(unsigned(Kind), 4); @@ -2212,7 +2230,7 @@ void CodeViewDebug::emitDebugInfoForGlobals() { if (!GV->hasComdat() && !GV->isDeclarationForLinker()) { if (!EndLabel) { OS.AddComment("Symbol subsection for globals"); - EndLabel = beginCVSubsection(ModuleSubstreamKind::Symbols); + EndLabel = beginCVSubsection(DebugSubsectionKind::Symbols); } // FIXME: emitDebugInfoForGlobal() doesn't handle DIExpressions. emitDebugInfoForGlobal(GVE->getVariable(), GV, Asm->getSymbol(GV)); @@ -2228,9 +2246,9 @@ void CodeViewDebug::emitDebugInfoForGlobals() { if (GV->hasComdat()) { MCSymbol *GVSym = Asm->getSymbol(GV); OS.AddComment("Symbol subsection for " + - Twine(GlobalValue::getRealLinkageName(GV->getName()))); + Twine(GlobalValue::dropLLVMManglingEscape(GV->getName()))); switchToDebugSectionForSymbol(GVSym); - EndLabel = beginCVSubsection(ModuleSubstreamKind::Symbols); + EndLabel = beginCVSubsection(DebugSubsectionKind::Symbols); // FIXME: emitDebugInfoForGlobal() doesn't handle DIExpressions. emitDebugInfoForGlobal(GVE->getVariable(), GV, GVSym); endCVSubsection(EndLabel); |
