diff --git a/bolt/include/bolt/Core/BinaryContext.h b/bolt/include/bolt/Core/BinaryContext.h --- a/bolt/include/bolt/Core/BinaryContext.h +++ b/bolt/include/bolt/Core/BinaryContext.h @@ -204,6 +204,9 @@ using DWOIdToCUMapType = std::unordered_map; DWOIdToCUMapType DWOCUs; + bool ContainsDwarf5{false}; + bool ContainsDwarfLegacy{false}; + /// Preprocess DWO debug information. void preprocessDWODebugInfo(); @@ -234,7 +237,13 @@ /// Get Number of DWOCUs in a map. uint32_t getNumDWOCUs() { return DWOCUs.size(); } - const std::map &getDwarfLineTables() const { + /// Returns true if DWARF5 is used. + bool isDWARF5Used() const { return ContainsDwarf5; } + + /// Returns true if DWARF4 or lower is used. + bool isDWARFLegacyUsed() const { return ContainsDwarfLegacy; } + + std::map &getDwarfLineTables() { return DwarfLineTablesCUMap; } @@ -245,7 +254,8 @@ Expected getDwarfFile(StringRef Directory, StringRef FileName, unsigned FileNumber, Optional Checksum, - Optional Source, unsigned CUID); + Optional Source, unsigned CUID, + unsigned DWARFVersion); /// [start memory address] -> [segment info] mapping. std::map SegmentMapInfo; diff --git a/bolt/include/bolt/Core/DebugData.h b/bolt/include/bolt/Core/DebugData.h --- a/bolt/include/bolt/Core/DebugData.h +++ b/bolt/include/bolt/Core/DebugData.h @@ -34,6 +34,21 @@ namespace bolt { +// DWARF5 Header in order of encoding. +// Types represent encodnig sizes. +using UnitLengthType = uint32_t; +using VersionType = uint16_t; +using AddressSizeType = uint8_t; +using SegmentSelectorType = uint8_t; +using OffsetEntryCountType = uint32_t; +/// Get DWARF5 Header size. +/// Rangelists and Loclists have the same header. +constexpr uint32_t getDWARF5RngListLocListHeaderSize() { + return sizeof(UnitLengthType) + sizeof(VersionType) + + sizeof(AddressSizeType) + sizeof(SegmentSelectorType) + + sizeof(OffsetEntryCountType); +} + class BinaryContext; /// Address range representation. Takes less space than DWARFAddressRange. @@ -114,18 +129,23 @@ }; using CUOffsetMap = std::map; +enum class RangesWriterKind { DebugRangesWriter, DebugRangeListsWriter }; /// Serializes the .debug_ranges DWARF section. class DebugRangesSectionWriter { public: DebugRangesSectionWriter(); + DebugRangesSectionWriter(RangesWriterKind K) : Kind(K){}; + + virtual ~DebugRangesSectionWriter(){}; + /// Add ranges with caching. - uint64_t + virtual uint64_t addRanges(DebugAddressRangesVector &&Ranges, std::map &CachedRanges); /// Add ranges and return offset into section. - uint64_t addRanges(const DebugAddressRangesVector &Ranges); + virtual uint64_t addRanges(const DebugAddressRangesVector &Ranges); /// Returns an offset of an empty address ranges list that is always written /// to .debug_ranges @@ -134,11 +154,18 @@ /// Returns the SectionOffset. uint64_t getSectionOffset(); - std::unique_ptr finalize() { + /// Returns a buffer containing Ranges. + virtual std::unique_ptr finalize() { return std::move(RangesBuffer); } -private: + RangesWriterKind getKind() const { return Kind; } + + static bool classof(const DebugRangesSectionWriter *Writer) { + return Writer->getKind() == RangesWriterKind::DebugRangesWriter; + } + +protected: std::unique_ptr RangesBuffer; std::unique_ptr RangesStream; @@ -151,6 +178,58 @@ /// Offset of an empty address ranges list. static constexpr uint64_t EmptyRangesOffset{0}; + +private: + RangesWriterKind Kind; +}; + +class DebugAddrWriter; +class DebugRangeListsSectionWriter : public DebugRangesSectionWriter { +public: + DebugRangeListsSectionWriter() + : DebugRangesSectionWriter(RangesWriterKind::DebugRangeListsWriter) { + RangesBuffer = std::make_unique(); + RangesStream = std::make_unique(*RangesBuffer); + }; + virtual ~DebugRangeListsSectionWriter(){}; + + static void setAddressWriter(DebugAddrWriter *AddrW) { AddrWriter = AddrW; } + + /// Add ranges with caching. + virtual uint64_t addRanges( + DebugAddressRangesVector &&Ranges, + std::map &CachedRanges) override; + + /// Add ranges and return offset into section. + virtual uint64_t addRanges(const DebugAddressRangesVector &Ranges) override; + + virtual std::unique_ptr finalize() override { + return std::move(RangesBuffer); + } + + /// Needs to be invoked before each CU is processed. + /// \p CUID is a unique ID of each CU. + void initSection(uint64_t CUId); + + /// Writes out range lists for a current CU being processed. + void finalizeSection(); + + static bool classof(const DebugRangesSectionWriter *Writer) { + return Writer->getKind() == RangesWriterKind::DebugRangeListsWriter; + } + +private: + static DebugAddrWriter *AddrWriter; + /// Unique ID of CU being processed. + uint64_t CUId{0}; + /// Current relative offset of range list entry within this CUs rangelist + /// body. + uint32_t CurrentOffset{0}; + /// Contains relative offset of each range list entry. + SmallVector RangeEntries; + + std::unique_ptr CUBodyBuffer; + std::unique_ptr CUBodyStream; }; /// Serializes the .debug_aranges DWARF section. @@ -193,23 +272,25 @@ public: DebugAddrWriter() = delete; DebugAddrWriter(BinaryContext *BC_); + virtual ~DebugAddrWriter(){}; /// Given an address returns an index in .debug_addr. /// Adds Address to map. - uint32_t getIndexFromAddress(uint64_t Address, uint64_t DWOId); + uint32_t getIndexFromAddress(uint64_t Address, uint64_t CUId); /// Adds {Address, Index} to DWO ID CU. - void addIndexAddress(uint64_t Address, uint32_t Index, uint64_t DWOId); + void addIndexAddress(uint64_t Address, uint32_t Index, uint64_t CUId); /// Creates consolidated .debug_addr section, and builds DWOID to offset map. - AddressSectionBuffer finalize(); + virtual AddressSectionBuffer finalize(); - /// Given DWOID returns offset of this CU in to .debug_addr section. - uint64_t getOffset(uint64_t DWOId); + /// Given DWARFUnit \p Unit returns offset of this CU in to .debug_addr + /// section. + virtual uint64_t getOffset(DWARFUnit &Unit); /// Returns False if .debug_addr section was created.. bool isInitialized() const { return !AddressMaps.empty(); } -private: +protected: class AddressForDWOCU { public: AddressToIndexMap::iterator find(uint64_t Adddress) { @@ -266,6 +347,18 @@ std::mutex WriterMutex; }; +class DebugAddrWriterDwarf5 : public DebugAddrWriter { +public: + DebugAddrWriterDwarf5() = delete; + DebugAddrWriterDwarf5(BinaryContext *BC) : DebugAddrWriter(BC) {} + + /// Creates consolidated .debug_addr section, and builds DWOID to offset map. + virtual AddressSectionBuffer finalize() override; + /// Given DWARFUnit \p Unit returns offset of this CU in to .debug_addr + /// section. + virtual uint64_t getOffset(DWARFUnit &Unit) override; +}; + using DebugStrBufferVector = SmallVector; class DebugStrWriter { public: @@ -305,7 +398,8 @@ virtual ~DebugLocWriter(){}; /// Writes out location lists and stores internal patches. - virtual void addList(uint64_t AttrOffset, DebugLocationsVector &&LocList); + virtual void addList(uint64_t AttrOffset, uint32_t LocListIndex, + DebugLocationsVector &&LocList); /// Writes out locations in to a local buffer, and adds Debug Info patches. virtual void finalize(uint64_t SectionOffset, @@ -314,6 +408,9 @@ /// Return internal buffer. virtual std::unique_ptr getBuffer(); + /// Returns DWARF version. + uint8_t getDwarfVersion() const { return DwarfVersion; } + /// Offset of an empty location list. static constexpr uint32_t EmptyListOffset = 0; @@ -325,13 +422,13 @@ protected: std::unique_ptr LocBuffer; - std::unique_ptr LocStream; /// Current offset in the section (updated as new entries are written). /// Starts with 0 here since this only writes part of a full location lists /// section. In the final section, the first 16 bytes are reserved for an /// empty list. uint32_t SectionOffset{0}; + uint8_t DwarfVersion{4}; LocWriterKind Kind{LocWriterKind::DebugLocWriter}; private: @@ -354,9 +451,12 @@ public: ~DebugLoclistWriter() {} DebugLoclistWriter() = delete; - DebugLoclistWriter(BinaryContext *BC, uint64_t DWOId_) - : DebugLocWriter(BC), DWOId(DWOId_) { + DebugLoclistWriter(BinaryContext *BC, uint64_t CID, + uint32_t LocListsBaseAttrOffset, uint8_t DV, bool SD) + : DebugLocWriter(BC), CUId(CID), + LocListsBaseAttrOffset(LocListsBaseAttrOffset), IsSplitDwarf(SD) { Kind = LocWriterKind::DebugLoclistWriter; + DwarfVersion = DV; assert(DebugLoclistWriter::AddrWriter && "Please use SetAddressWriter to initialize " "DebugAddrWriter before instantiation."); @@ -365,7 +465,7 @@ static void setAddressWriter(DebugAddrWriter *AddrW) { AddrWriter = AddrW; } /// Stores location lists internally to be written out during finalize phase. - virtual void addList(uint64_t AttrOffset, + virtual void addList(uint64_t AttrOffset, uint32_t LocListIndex, DebugLocationsVector &&LocList) override; /// Writes out locations in to a local buffer and applies debug info patches. @@ -373,15 +473,31 @@ SimpleBinaryPatcher &DebugInfoPatcher) override; /// Returns DWO ID. - uint64_t getDWOID() const { return DWOId; } + uint64_t getCUID() const { return CUId; } + + LocWriterKind getKind() const { return DebugLocWriter::getKind(); } static bool classof(const DebugLocWriter *Writer) { return Writer->getKind() == LocWriterKind::DebugLoclistWriter; } + bool isSplitDwarf() const { return IsSplitDwarf; } + + constexpr static uint32_t InvalidIndex = UINT32_MAX; + constexpr static uint32_t InvalidLocListsBaseAttrOffset = UINT32_MAX; + private: + /// Writes out locations in to a local buffer and applies debug info patches. + void finalizeDWARFLegacy(uint64_t SectionOffset, + SimpleBinaryPatcher &DebugInfoPatcher); + + /// Writes out locations in to a local buffer and applies debug info patches. + void finalizeDWARF5(uint64_t SectionOffset, + SimpleBinaryPatcher &DebugInfoPatcher); + struct LocPatch { uint64_t AttrOffset{0}; + uint32_t Index; DebugLocationsVector LocList; }; using LocPatchVec = SmallVector; @@ -395,7 +511,9 @@ uint64_t Address{0}; }; static DebugAddrWriter *AddrWriter; - uint64_t DWOId{0}; + uint64_t CUId{0}; + uint32_t LocListsBaseAttrOffset{InvalidLocListsBaseAttrOffset}; + bool IsSplitDwarf{false}; }; enum class PatcherKind { SimpleBinaryPatcher, DebugInfoBinaryPatcher }; @@ -914,6 +1032,9 @@ /// Raw data representing complete debug line section for the unit. StringRef RawData; + /// DWARF Version + uint16_t DwarfVersion; + public: /// Emit line info for all units in the binary context. static void emit(BinaryContext &BC, MCStreamer &Streamer); @@ -937,6 +1058,14 @@ void setLabel(MCSymbol *Label) { Header.Label = Label; } + /// Sets the root file \p Directory, \p FileName, optional \p CheckSum, and + /// optional \p Source. + void setRootFile(StringRef Directory, StringRef FileName, + Optional Checksum, + Optional Source) { + Header.setRootFile(Directory, FileName, Checksum, Source); + } + /// Access to MC line info. MCLineSection &getMCLineSections() { return MCLineSections; } @@ -956,6 +1085,12 @@ void addRawContents(StringRef DebugLineContents) { RawData = DebugLineContents; } + + /// Sets DWARF version for this line table. + void setDwarfVersion(uint16_t V) { DwarfVersion = V; } + + // Returns DWARF Version for this line table. + uint16_t getDwarfVersion() const { return DwarfVersion; } }; struct AttrInfo { diff --git a/bolt/include/bolt/Rewrite/DWARFRewriter.h b/bolt/include/bolt/Rewrite/DWARFRewriter.h --- a/bolt/include/bolt/Rewrite/DWARFRewriter.h +++ b/bolt/include/bolt/Rewrite/DWARFRewriter.h @@ -51,8 +51,7 @@ /// .debug_abbrev section writer for the main binary. std::unique_ptr AbbrevWriter; - using LocWriters = - std::unordered_map>; + using LocWriters = std::map>; /// Use a separate location list writer for each compilation unit LocWriters LocListWritersByCU; @@ -68,11 +67,15 @@ std::mutex LocListDebugInfoPatchesMutex; + /// DWARFLegacy is all DWARF versions before DWARF 5. + enum class DWARFVersion { DWARFLegacy, DWARF5 }; + /// Update debug info for all DIEs in \p Unit. void updateUnitDebugInfo(DWARFUnit &Unit, DebugInfoBinaryPatcher &DebugInfoPatcher, DebugAbbrevWriter &AbbrevWriter, DebugLocWriter &DebugLocWriter, + DebugRangesSectionWriter &RangesWriter, Optional RangesBase = None); /// Patches the binary for an object's address ranges to be updated. @@ -91,7 +94,8 @@ Optional RangesBase = None); std::unique_ptr - makeFinalLocListsSection(SimpleBinaryPatcher &DebugInfoPatcher); + makeFinalLocListsSection(SimpleBinaryPatcher &DebugInfoPatcher, + DWARFVersion Version); /// Finalize debug sections in the main binary. CUOffsetMap finalizeDebugSections(DebugInfoBinaryPatcher &DebugInfoPatcher); diff --git a/bolt/lib/Core/BinaryContext.cpp b/bolt/lib/Core/BinaryContext.cpp --- a/bolt/lib/Core/BinaryContext.cpp +++ b/bolt/lib/Core/BinaryContext.cpp @@ -1325,14 +1325,13 @@ } } -Expected -BinaryContext::getDwarfFile(StringRef Directory, StringRef FileName, - unsigned FileNumber, - Optional Checksum, - Optional Source, unsigned CUID) { +Expected BinaryContext::getDwarfFile( + StringRef Directory, StringRef FileName, unsigned FileNumber, + Optional Checksum, Optional Source, + unsigned CUID, unsigned DWARFVersion) { DwarfLineTable &Table = DwarfLineTablesCUMap[CUID]; - return Table.tryGetFile(Directory, FileName, Checksum, Source, - Ctx->getDwarfVersion(), FileNumber); + return Table.tryGetFile(Directory, FileName, Checksum, Source, DWARFVersion, + FileNumber); } unsigned BinaryContext::addDebugFilenameToUnit(const uint32_t DestCUID, @@ -1360,7 +1359,9 @@ dwarf::toString(FileNames[FileIndex - 1].Name)) FileName = *FName; assert(FileName != ""); - return cantFail(getDwarfFile(Dir, FileName, 0, None, None, DestCUID)); + DWARFCompileUnit *DstUnit = DwCtx->getCompileUnitForOffset(DestCUID); + return cantFail(getDwarfFile(Dir, FileName, 0, None, None, DestCUID, + DstUnit->getVersion())); } std::vector BinaryContext::getSortedFunctions() { @@ -1458,6 +1459,9 @@ if (containsAddress(Range.LowPC)) AllRanges.emplace_back(CURange{Range.LowPC, Range.HighPC, CU.get()}); } + + ContainsDwarf5 |= CU->getVersion() == 5; + ContainsDwarfLegacy |= CU->getVersion() < 5; } std::sort(AllRanges.begin(), AllRanges.end()); @@ -1496,7 +1500,9 @@ StringRef GlobalPrefix = AsmInfo->getPrivateGlobalPrefix(); for (const std::unique_ptr &CU : DwCtx->compile_units()) { const uint64_t CUID = CU->getOffset(); - getDwarfLineTable(CUID).setLabel(Ctx->getOrCreateSymbol( + DWARFDataExtractor LineData(CU->getLineSection().Data, true, 0); + DwarfLineTable &BoltLineTable = getDwarfLineTable(CUID); + BoltLineTable.setLabel(Ctx->getOrCreateSymbol( GlobalPrefix + "line_table_start" + Twine(CUID))); if (!ProcessedCUs.count(CU.get())) @@ -1507,26 +1513,44 @@ const std::vector &FileNames = LineTable->Prologue.FileNames; + uint16_t DwarfVersion = LineTable->Prologue.getVersion(); + if (DwarfVersion == 5) { + Optional Checksum = + LineTable->Prologue.FileNames[0].Checksum; + BoltLineTable.setRootFile( + CU->getCompilationDir(), + dwarf::toString(CU->getUnitDIE().find(dwarf::DW_AT_name), nullptr), + Checksum, None); + } + + BoltLineTable.setDwarfVersion(DwarfVersion); + // Assign a unique label to every line table, one per CU. // Make sure empty debug line tables are registered too. if (FileNames.empty()) { - cantFail(getDwarfFile("", "", 0, None, None, CUID)); + cantFail( + getDwarfFile("", "", 0, None, None, CUID, DwarfVersion)); continue; } + const uint32_t Offset = DwarfVersion < 5 ? 1 : 0; for (size_t I = 0, Size = FileNames.size(); I != Size; ++I) { // Dir indexes start at 1, as DWARF file numbers, and a dir index 0 // means empty dir. StringRef Dir = ""; - if (FileNames[I].DirIdx != 0) + if (FileNames[I].DirIdx != 0 || DwarfVersion == 5) if (Optional DirName = dwarf::toString( LineTable->Prologue - .IncludeDirectories[FileNames[I].DirIdx - 1])) + .IncludeDirectories[FileNames[I].DirIdx - Offset])) Dir = *DirName; StringRef FileName = ""; if (Optional FName = dwarf::toString(FileNames[I].Name)) FileName = *FName; assert(FileName != ""); - cantFail(getDwarfFile(Dir, FileName, 0, None, None, CUID)); + Optional Checksum = None; + if (DwarfVersion == 5) + Checksum = LineTable->Prologue.FileNames[I].Checksum; + cantFail( + getDwarfFile(Dir, FileName, 0, Checksum, None, CUID, DwarfVersion)); } } diff --git a/bolt/lib/Core/DebugData.cpp b/bolt/lib/Core/DebugData.cpp --- a/bolt/lib/Core/DebugData.cpp +++ b/bolt/lib/Core/DebugData.cpp @@ -15,6 +15,7 @@ #include "bolt/Utils/Utils.h" #include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h" #include "llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h" +#include "llvm/DebugInfo/DWARF/DWARFDebugAddr.h" #include "llvm/MC/MCAssembler.h" #include "llvm/MC/MCContext.h" #include "llvm/MC/MCObjectStreamer.h" @@ -118,6 +119,7 @@ // Add an empty range as the first entry; SectionOffset += writeAddressRanges(*RangesStream.get(), DebugAddressRangesVector{}); + Kind = RangesWriterKind::DebugRangesWriter; } uint64_t DebugRangesSectionWriter::addRanges( @@ -155,6 +157,94 @@ return SectionOffset; } +DebugAddrWriter *DebugRangeListsSectionWriter::AddrWriter = nullptr; + +uint64_t DebugRangeListsSectionWriter::addRanges( + DebugAddressRangesVector &&Ranges, + std::map &CachedRanges) { + return addRanges(Ranges); +} + +struct LocListsRangelistsHeader { + UnitLengthType UnitLength; // Size of loclist entris section, not including + // size of header. + VersionType Version; + AddressSizeType AddressSize; + SegmentSelectorType SegmentSelector; + OffsetEntryCountType OffsetEntryCount; +}; + +static std::unique_ptr +getDWARF5Header(const LocListsRangelistsHeader &Header) { + std::unique_ptr HeaderBuffer = + std::make_unique(); + std::unique_ptr HeaderStream = + std::make_unique(*HeaderBuffer); + + // 7.29 length of the set of entries for this compilation unit, not including + // the length field itself + const uint32_t HeaderSize = + getDWARF5RngListLocListHeaderSize() - sizeof(UnitLengthType); + + support::endian::write(*HeaderStream, Header.UnitLength + HeaderSize, + support::little); + support::endian::write(*HeaderStream, Header.Version, support::little); + support::endian::write(*HeaderStream, Header.AddressSize, support::little); + support::endian::write(*HeaderStream, Header.SegmentSelector, + support::little); + support::endian::write(*HeaderStream, Header.OffsetEntryCount, + support::little); + return HeaderBuffer; +} + +uint64_t DebugRangeListsSectionWriter::addRanges( + const DebugAddressRangesVector &Ranges) { + std::lock_guard Lock(WriterMutex); + + RangeEntries.push_back(CurrentOffset); + for (const DebugAddressRange &Range : Ranges) { + support::endian::write(*CUBodyStream, + static_cast(dwarf::DW_RLE_startx_length), + support::little); + const uint32_t Index = AddrWriter->getIndexFromAddress(Range.LowPC, CUId); + encodeULEB128(Index, *CUBodyStream); + encodeULEB128(Range.HighPC - Range.LowPC, *CUBodyStream); + } + support::endian::write(*CUBodyStream, + static_cast(dwarf::DW_RLE_end_of_list), + support::little); + CurrentOffset = CUBodyBuffer->size(); + return RangeEntries.size() - 1; +} + +void DebugRangeListsSectionWriter::finalizeSection() { + std::unique_ptr CUArrayBuffer = + std::make_unique(); + std::unique_ptr CUArrayStream = + std::make_unique(*CUArrayBuffer); + constexpr uint32_t SizeOfArrayEntry = 4; + const uint32_t SizeOfArraySection = RangeEntries.size() * SizeOfArrayEntry; + for (uint32_t Offset : RangeEntries) + support::endian::write(*CUArrayStream, Offset + SizeOfArraySection, + support::little); + + std::unique_ptr Header = getDWARF5Header( + {static_cast(SizeOfArraySection + CUBodyBuffer.get()->size()), + 5, 8, 0, static_cast(RangeEntries.size())}); + *RangesStream << *Header; + *RangesStream << *CUArrayBuffer; + *RangesStream << *CUBodyBuffer; + SectionOffset = RangesBuffer->size(); +} + +void DebugRangeListsSectionWriter::initSection(uint64_t CUId_) { + CUBodyBuffer = std::make_unique(); + CUBodyStream = std::make_unique(*CUBodyBuffer); + RangeEntries.clear(); + CurrentOffset = 0; + CUId = CUId_; +} + void DebugARangesSectionWriter::addCURanges(uint64_t CUOffset, DebugAddressRangesVector &&Ranges) { std::lock_guard Lock(CUAddressRangesMutex); @@ -220,13 +310,12 @@ for (auto &Pair : SortedMap) dbgs() << Twine::utohexstr(Pair.second) << "\t" << Pair.first << "\n"; } -uint32_t DebugAddrWriter::getIndexFromAddress(uint64_t Address, - uint64_t DWOId) { +uint32_t DebugAddrWriter::getIndexFromAddress(uint64_t Address, uint64_t CUId) { std::lock_guard Lock(WriterMutex); - if (!AddressMaps.count(DWOId)) - AddressMaps[DWOId] = AddressForDWOCU(); + if (!AddressMaps.count(CUId)) + AddressMaps[CUId] = AddressForDWOCU(); - AddressForDWOCU &Map = AddressMaps[DWOId]; + AddressForDWOCU &Map = AddressMaps[CUId]; auto Entry = Map.find(Address); if (Entry == Map.end()) { auto Index = Map.getNextIndex(); @@ -240,9 +329,9 @@ // IndexToAddrss. Case3) Address is in the map but Index is lower. Need to // update AddressToIndex and IndexToAddress void DebugAddrWriter::addIndexAddress(uint64_t Address, uint32_t Index, - uint64_t DWOId) { + uint64_t CUId) { std::lock_guard Lock(WriterMutex); - AddressForDWOCU &Map = AddressMaps[DWOId]; + AddressForDWOCU &Map = AddressMaps[CUId]; auto Entry = Map.find(Address); if (Entry != Map.end()) { if (Entry->second > Index) @@ -265,6 +354,7 @@ if (!DWOId) continue; auto AM = AddressMaps.find(*DWOId); + assert(AM != AddressMaps.end() && "Address Map not found."); // Adding to map even if it did not contribute to .debug_addr. // The Skeleton CU will still have DW_AT_GNU_addr_base. DWOIdToOffsetMap[*DWOId] = Buffer.size(); @@ -306,9 +396,98 @@ return Buffer; } +AddressSectionBuffer DebugAddrWriterDwarf5::finalize() { + // Need to layout all sections within .debug_addr + // Within each section sort Address by index. + AddressSectionBuffer Buffer; + raw_svector_ostream AddressStream(Buffer); + const endianness Endian = + BC->DwCtx->isLittleEndian() ? support::little : support::big; + const DWARFSection &AddrSec = BC->DwCtx->getDWARFObj().getAddrSection(); + DWARFDataExtractor AddrData(BC->DwCtx->getDWARFObj(), AddrSec, Endian, 0); + DWARFDebugAddrTable AddrTable; + DIDumpOptions DumpOpts; + constexpr uint32_t HeaderSize = 8; + for (std::unique_ptr &CU : BC->DwCtx->compile_units()) { + uint64_t CUId = CU->getOffset(); + uint8_t AddrSize = CU->getAddressByteSize(); + auto Iter = AddressMaps.find(CUId); + // A case where CU has entry in .debug_addr, but we don't modify addresses + // for it. + if (Iter == AddressMaps.end()) { + Iter = AddressMaps.insert({CUId, AddressForDWOCU()}).first; + auto BaseOffset = CU->getAddrOffsetSectionBase(); + if (!BaseOffset) + continue; + // Address base offset is to the first entry. + // The size of header is 8 bytes. + uint64_t Offset = *BaseOffset - HeaderSize; + if (Error Err = AddrTable.extract(AddrData, &Offset, 5, AddrSize, + DumpOpts.WarningHandler)) { + DumpOpts.RecoverableErrorHandler(std::move(Err)); + continue; + } + uint32_t Index = 0; + for (uint64_t Addr : AddrTable.getAddressEntries()) { + Iter->second.insert(Addr, Index++); + } + } + + DWOIdToOffsetMap[CUId] = Buffer.size() + HeaderSize; + + std::vector SortedMap(Iter->second.indexToAddressBegin(), + Iter->second.indexToAdddessEnd()); + // Sorting address in increasing order of indices. + std::sort(SortedMap.begin(), SortedMap.end(), + [](const IndexAddressPair &A, const IndexAddressPair &B) { + return A.first < B.first; + }); + // Writing out Header + const uint32_t Length = SortedMap.size() * AddrSize + 4; + support::endian::write(AddressStream, Length, Endian); + support::endian::write(AddressStream, static_cast(5), Endian); + support::endian::write(AddressStream, static_cast(AddrSize), + Endian); + support::endian::write(AddressStream, static_cast(0), Endian); + + uint32_t Counter = 0; + auto WriteAddress = [&](uint64_t Address) -> void { + ++Counter; + switch (AddrSize) { + default: + llvm_unreachable("Address Size is invalid."); + break; + case 4: + support::endian::write(AddressStream, static_cast(Address), + Endian); + break; + case 8: + support::endian::write(AddressStream, Address, Endian); + break; + } + }; + + for (const IndexAddressPair &Val : SortedMap) { + while (Val.first > Counter) + WriteAddress(0); + WriteAddress(Val.second); + } + } + + return Buffer; +} + +uint64_t DebugAddrWriter::getOffset(DWARFUnit &Unit) { + Optional DWOId = Unit.getDWOId(); + assert(DWOId && "Can't get offset, not a skeleton CU."); + auto Iter = DWOIdToOffsetMap.find(*DWOId); + assert(Iter != DWOIdToOffsetMap.end() && + "Offset in to.debug_addr was not found for DWO ID."); + return Iter->second; +} -uint64_t DebugAddrWriter::getOffset(uint64_t DWOId) { - auto Iter = DWOIdToOffsetMap.find(DWOId); +uint64_t DebugAddrWriterDwarf5::getOffset(DWARFUnit &Unit) { + auto Iter = DWOIdToOffsetMap.find(Unit.getOffset()); assert(Iter != DWOIdToOffsetMap.end() && "Offset in to.debug_addr was not found for DWO ID."); return Iter->second; @@ -319,7 +498,7 @@ LocStream = std::make_unique(*LocBuffer); } -void DebugLocWriter::addList(uint64_t AttrOffset, +void DebugLocWriter::addList(uint64_t AttrOffset, uint32_t LocListIndex, DebugLocationsVector &&LocList) { if (LocList.empty()) { EmptyAttrLists.push_back(AttrOffset); @@ -345,9 +524,9 @@ LocListDebugInfoPatches.push_back({AttrOffset, EntryOffset}); } -void DebugLoclistWriter::addList(uint64_t AttrOffset, +void DebugLoclistWriter::addList(uint64_t AttrOffset, uint32_t LocListIndex, DebugLocationsVector &&LocList) { - Patches.push_back({AttrOffset, std::move(LocList)}); + Patches.push_back({AttrOffset, LocListIndex, std::move(LocList)}); } std::unique_ptr DebugLocWriter::getBuffer() { @@ -368,8 +547,95 @@ DebugLocWriter::EmptyListOffset); } -void DebugLoclistWriter::finalize(uint64_t SectionOffset, - SimpleBinaryPatcher &DebugInfoPatcher) { +static void writeEmptyListDwarf5(raw_svector_ostream &Stream) { + support::endian::write(Stream, static_cast(4), support::little); + support::endian::write(Stream, static_cast(dwarf::DW_LLE_start_end), + support::little); + + const char Zeroes[16] = {0}; + Stream << StringRef(Zeroes, 16); + encodeULEB128(0, Stream); + support::endian::write( + Stream, static_cast(dwarf::DW_LLE_end_of_list), support::little); +} + +void DebugLoclistWriter::finalizeDWARF5(uint64_t SectionOffset, + SimpleBinaryPatcher &DebugInfoPatcher) { + + std::unique_ptr LocArrayBuffer = + std::make_unique(); + std::unique_ptr LocArrayStream = + std::make_unique(*LocArrayBuffer); + std::unique_ptr LocBodyBuffer = + std::make_unique(); + std::unique_ptr LocBodyStream = + std::make_unique(*LocBodyBuffer); + + const uint32_t SizeOfArraySection = Patches.size() * sizeof(uint32_t); + std::sort(Patches.begin(), Patches.end(), + [](const LocPatch &P1, const LocPatch &P2) -> bool { + return P1.Index < P2.Index; + }); + + if (LocListsBaseAttrOffset != InvalidLocListsBaseAttrOffset) + DebugInfoPatcher.addLE32Patch(LocListsBaseAttrOffset, + SectionOffset + + getDWARF5RngListLocListHeaderSize()); + + uint32_t Index{0}; + for (LocPatch &Patch : Patches) { + const uint32_t EntryOffset = LocBodyBuffer->size(); + if (Patch.LocList.empty()) { + if (Patch.Index == DebugLoclistWriter::InvalidIndex) + DebugInfoPatcher.addLE32Patch(Patch.AttrOffset, EntryOffset); + + writeEmptyListDwarf5(*LocBodyStream); + continue; + } + + assert(Patch.Index == DebugLoclistWriter::InvalidIndex || + Patch.Index == Index++ && "Gap in LocList Index Array."); + + std::vector OffsetsArray; + for (const DebugLocationEntry &Entry : Patch.LocList) { + support::endian::write(*LocBodyStream, + static_cast(dwarf::DW_LLE_startx_length), + support::little); + const uint32_t Index = AddrWriter->getIndexFromAddress(Entry.LowPC, CUId); + encodeULEB128(Index, *LocBodyStream); + encodeULEB128(Entry.HighPC - Entry.LowPC, *LocBodyStream); + encodeULEB128(Entry.Expr.size(), *LocBodyStream); + *LocBodyStream << StringRef( + reinterpret_cast(Entry.Expr.data()), Entry.Expr.size()); + } + support::endian::write(*LocBodyStream, + static_cast(dwarf::DW_LLE_end_of_list), + support::little); + + // Write out IndexArray + support::endian::write( + *LocArrayStream, + static_cast(SizeOfArraySection + EntryOffset), + support::little); + // Don't need to patch Index since we are re-using them. + if (Patch.Index == DebugLoclistWriter::InvalidIndex) + DebugInfoPatcher.addLE32Patch(Patch.AttrOffset, EntryOffset); + clearList(Patch.LocList); + } + if (!Patches.empty()) { + std::unique_ptr Header = + getDWARF5Header({static_cast(SizeOfArraySection + + LocBodyBuffer.get()->size()), + 5, 8, 0, static_cast(Patches.size())}); + *LocStream << *Header; + *LocStream << *LocArrayBuffer; + *LocStream << *LocBodyBuffer; + } + clearList(Patches); +} + +void DebugLoclistWriter::finalizeDWARFLegacy( + uint64_t SectionOffset, SimpleBinaryPatcher &DebugInfoPatcher) { for (LocPatch &Patch : Patches) { if (Patch.LocList.empty()) { DebugInfoPatcher.addLE32Patch(Patch.AttrOffset, @@ -381,7 +647,7 @@ support::endian::write(*LocStream, static_cast(dwarf::DW_LLE_startx_length), support::little); - uint32_t Index = AddrWriter->getIndexFromAddress(Entry.LowPC, DWOId); + const uint32_t Index = AddrWriter->getIndexFromAddress(Entry.LowPC, CUId); encodeULEB128(Index, *LocStream); // TODO: Support DWARF5 @@ -403,6 +669,14 @@ clearList(Patches); } +void DebugLoclistWriter::finalize(uint64_t SectionOffset, + SimpleBinaryPatcher &DebugInfoPatcher) { + if (DwarfVersion < 5) + finalizeDWARFLegacy(SectionOffset, DebugInfoPatcher); + else + finalizeDWARF5(SectionOffset, DebugInfoPatcher); +} + DebugAddrWriter *DebugLoclistWriter::AddrWriter = nullptr; void DebugInfoBinaryPatcher::addUnitBaseOffsetLabel(uint64_t Offset) { @@ -1154,7 +1428,7 @@ MCOS->emitULEB128IntValue(Column); } if (Discriminator != LineEntry.getDiscriminator() && - MCOS->getContext().getDwarfVersion() >= 4) { + MCOS->getContext().getDwarfVersion() >= 2) { Discriminator = LineEntry.getDiscriminator(); unsigned Size = getULEB128Size(Discriminator); MCOS->emitInt8(dwarf::DW_LNS_extended_op); @@ -1228,6 +1502,31 @@ MCOS->emitLabel(LineEndSym); } +// Helper function to parse .debug_line_str, and populate one we are using. +// For functions that we do not modify we output them as raw data. +// Re-constructing .debug_line_str so that offsets are correct for those +// debut line tables. +// Bonus is that when we output a final binary we can re-use .debug_line_str +// section. So we don't have to do the SHF_ALLOC trick we did with +// .debug_line. +static void parseAndPopulateDebugLineStr(BinarySection &LineStrSection, + MCDwarfLineStr &LineStr, + BinaryContext &BC, + MCStreamer &Streamer) { + DataExtractor StrData(LineStrSection.getContents(), + BC.DwCtx->isLittleEndian(), 0); + uint64_t Offset = 0; + while (StrData.isValidOffset(Offset)) { + Error Err = Error::success(); + const char *CStr = StrData.getCStr(&Offset, &Err); + if (Err) { + errs() << "BOLT-ERROR: could not extract string from .debug_line_str."; + continue; + } + LineStr.emitRef(&Streamer, CStr); + } +} + void DwarfLineTable::emit(BinaryContext &BC, MCStreamer &Streamer) { MCAssembler &Assembler = static_cast(&Streamer)->getAssembler(); @@ -1240,19 +1539,35 @@ // in doing so create an unnecessary (if empty) section. if (LineTables.empty()) return; - // In a v5 non-split line table, put the strings in a separate section. Optional LineStr(None); - if (BC.Ctx->getDwarfVersion() >= 5) + ErrorOr LineStrSection = + BC.getUniqueSectionByName(".debug_line_str"); + // Some versions of GCC output DWARF5 .debug_info, but DWARF4 or lower + // .debug_line + if (LineStrSection) { LineStr = MCDwarfLineStr(*BC.Ctx); + parseAndPopulateDebugLineStr(*LineStrSection, *LineStr, BC, Streamer); + } // Switch to the section where the table will be emitted into. Streamer.SwitchSection(BC.MOFI->getDwarfLineSection()); + uint16_t DwarfVersion = BC.Ctx->getDwarfVersion(); // Handle the rest of the Compile Units. for (auto &CUIDTablePair : LineTables) { + Streamer.getContext().setDwarfVersion( + CUIDTablePair.second.getDwarfVersion()); CUIDTablePair.second.emitCU(&Streamer, Params, LineStr, BC); } + + // Resetting DWARF version for rest of the flow. + BC.Ctx->setDwarfVersion(DwarfVersion); + + // Still need to write the section out for the ExecutionEngine, and temp in + // memory object we are constructing. + if (LineStr) + LineStr->emitSection(&Streamer); } } // namespace bolt diff --git a/bolt/lib/Rewrite/DWARFRewriter.cpp b/bolt/lib/Rewrite/DWARFRewriter.cpp --- a/bolt/lib/Rewrite/DWARFRewriter.cpp +++ b/bolt/lib/Rewrite/DWARFRewriter.cpp @@ -72,6 +72,19 @@ return None; return findAttributeInfo(DIE, AbbrevDecl, *Index); } + +/// Finds attributes FormValue and Offset. +/// +/// \param DIE die to look up in. +/// \param Attrs finds the first attribute that matches and extracts it. +/// \return an optional AttrInfo with DWARFFormValue and Offset. +Optional findAttributeInfo(const DWARFDie DIE, + std::vector Attrs) { + for (dwarf::Attribute &Attr : Attrs) + if (Optional Info = findAttributeInfo(DIE, Attr)) + return Info; + return None; +} } // namespace bolt } // namespace llvm @@ -158,24 +171,40 @@ static_cast(DebugInfo->getPatcher()); ARangesSectionWriter = std::make_unique(); - RangesSectionWriter = std::make_unique(); StrWriter = std::make_unique(&BC); AbbrevWriter = std::make_unique(*BC.DwCtx); - AddrWriter = std::make_unique(&BC); - DebugLoclistWriter::setAddressWriter(AddrWriter.get()); - - uint64_t NumCUs = BC.DwCtx->getNumCompileUnits(); - if ((opts::NoThreads || opts::DeterministicDebugInfo) && - BC.getNumDWOCUs() == 0) { - // Use single entry for efficiency when running single-threaded - NumCUs = 1; + if (BC.isDWARF5Used()) { + // Disabling none deterministic mode for dwarf5, to keep implementation + // simpler. + opts::DeterministicDebugInfo = true; + AddrWriter = std::make_unique(&BC); + RangesSectionWriter = std::make_unique(); + DebugRangeListsSectionWriter::setAddressWriter(AddrWriter.get()); + } else { + AddrWriter = std::make_unique(&BC); + RangesSectionWriter = std::make_unique(); } - LocListWritersByCU.reserve(NumCUs); + DebugLoclistWriter::setAddressWriter(AddrWriter.get()); - for (size_t CUIndex = 0; CUIndex < NumCUs; ++CUIndex) - LocListWritersByCU[CUIndex] = std::make_unique(&BC); + size_t CUIndex = 0; + for (std::unique_ptr &CU : BC.DwCtx->compile_units()) { + if (CU->getVersion() == 5) { + uint32_t AttrInfoOffset = + DebugLoclistWriter::InvalidLocListsBaseAttrOffset; + if (Optional AttrInfoVal = + findAttributeInfo(CU->getUnitDIE(), dwarf::DW_AT_loclists_base)) + AttrInfoOffset = AttrInfoVal->Offset; + + LocListWritersByCU[CUIndex] = std::make_unique( + &BC, CU->isDWOUnit() ? *CU->getDWOId() : CU->getOffset(), + AttrInfoOffset, 5, false); + } else { + LocListWritersByCU[CUIndex] = std::make_unique(&BC); + } + ++CUIndex; + } // Unordered maps to handle name collision if output DWO directory is // specified. @@ -185,8 +214,8 @@ auto updateDWONameCompDir = [&](DWARFUnit &Unit) -> void { const DWARFDie &DIE = Unit.getUnitDIE(); - Optional AttrInfoVal = - findAttributeInfo(DIE, dwarf::DW_AT_GNU_dwo_name); + Optional AttrInfoVal = findAttributeInfo( + DIE, {dwarf::DW_AT_dwo_name, dwarf::DW_AT_GNU_dwo_name}); (void)AttrInfoVal; assert(AttrInfoVal && "Skeleton CU doesn't have dwo_name."); @@ -234,8 +263,8 @@ std::lock_guard Lock(AccessMutex); DebugLocWriter = LocListWritersByCU - .insert( - {*DWOId, std::make_unique(&BC, *DWOId)}) + .insert({*DWOId, std::make_unique( + &BC, *DWOId, 0, Unit->getVersion(), true)}) .first->second.get(); } DebugInfoBinaryPatcher *DwoDebugInfoPatcher = @@ -251,7 +280,7 @@ DebugAbbrevWriter *DWOAbbrevWriter = createBinaryDWOAbbrevWriter((*SplitCU)->getContext(), *DWOId); updateUnitDebugInfo(*(*SplitCU), *DwoDebugInfoPatcher, *DWOAbbrevWriter, - *DebugLocWriter); + *DebugLocWriter, *RangesSectionWriter); DwoDebugInfoPatcher->clearDestinationLabels(); if (!DwoDebugInfoPatcher->getWasRangBasedUsed()) RangesBase = None; @@ -261,18 +290,33 @@ std::lock_guard Lock(AccessMutex); DebugLocWriter = LocListWritersByCU[CUIndex].get(); } + if (Unit->getVersion() == 5) { + RangesBase = RangesSectionWriter->getSectionOffset() + + getDWARF5RngListLocListHeaderSize(); + reinterpret_cast( + RangesSectionWriter.get()) + ->initSection(Unit->getOffset()); + } + DebugInfoPatcher->addUnitBaseOffsetLabel(Unit->getOffset()); updateUnitDebugInfo(*Unit, *DebugInfoPatcher, *AbbrevWriter, - *DebugLocWriter, RangesBase); + *DebugLocWriter, *RangesSectionWriter, RangesBase); + if (Unit->getVersion() == 5) + reinterpret_cast( + RangesSectionWriter.get()) + ->finalizeSection(); }; + CUIndex = 0; if (opts::NoThreads || opts::DeterministicDebugInfo) { - for (std::unique_ptr &CU : BC.DwCtx->compile_units()) - processUnitDIE(0, CU.get()); + for (std::unique_ptr &CU : BC.DwCtx->compile_units()) { + processUnitDIE(CUIndex, CU.get()); + if (CU->getVersion() == 5) + ++CUIndex; + } } else { // Update unit debug info in parallel ThreadPool &ThreadPool = ParallelUtilities::getThreadPool(); - size_t CUIndex = 0; for (std::unique_ptr &CU : BC.DwCtx->compile_units()) { ThreadPool.async(processUnitDIE, CUIndex, CU.get()); CUIndex++; @@ -291,9 +335,18 @@ updateGdbIndexSection(OffsetMap); } +static uint64_t getCUId(DWARFUnit &Unit) { + if (Unit.getVersion() == 5) + return Unit.getOffset(); + + assert(Unit.isDWOUnit() && "Unit is not Skeleton CU."); + return *Unit.getDWOId(); +} + void DWARFRewriter::updateUnitDebugInfo( DWARFUnit &Unit, DebugInfoBinaryPatcher &DebugInfoPatcher, DebugAbbrevWriter &AbbrevWriter, DebugLocWriter &DebugLocWriter, + DebugRangesSectionWriter &RangesSectionWriter, Optional RangesBase) { // Cache debug ranges so that the offset for identical ranges could be reused. std::map CachedRanges; @@ -320,7 +373,6 @@ } DWARFDie DIE(&Unit, &Die); - switch (DIE.getTag()) { case dwarf::DW_TAG_compile_unit: { auto ModuleRangesOrError = DIE.getAddressRanges(); @@ -332,7 +384,7 @@ DebugAddressRangesVector OutputRanges = BC.translateModuleAddressRanges(ModuleRanges); const uint64_t RangesSectionOffset = - RangesSectionWriter->addRanges(OutputRanges); + RangesSectionWriter.addRanges(OutputRanges); if (!Unit.isDWOUnit()) ARangesSectionWriter->addCURanges(Unit.getOffset(), std::move(OutputRanges)); @@ -371,7 +423,7 @@ FunctionRanges.push_back({0, 0}); updateDWARFObjectAddressRanges( - DIE, RangesSectionWriter->addRanges(FunctionRanges), DebugInfoPatcher, + DIE, RangesSectionWriter.addRanges(FunctionRanges), DebugInfoPatcher, AbbrevWriter); break; @@ -380,8 +432,7 @@ case dwarf::DW_TAG_inlined_subroutine: case dwarf::DW_TAG_try_block: case dwarf::DW_TAG_catch_block: { - uint64_t RangesSectionOffset = - RangesSectionWriter->getEmptyRangesOffset(); + uint64_t RangesSectionOffset = RangesSectionWriter.getEmptyRangesOffset(); Expected RangesOrError = DIE.getAddressRanges(); const BinaryFunction *Function = RangesOrError && !RangesOrError->empty() @@ -396,7 +447,7 @@ << Twine::utohexstr(DIE.getOffset()) << " in CU at 0x" << Twine::utohexstr(Unit.getOffset()) << '\n'; }); - RangesSectionOffset = RangesSectionWriter->addRanges( + RangesSectionOffset = RangesSectionWriter.addRanges( std::move(OutputRanges), CachedRanges); } else if (!RangesOrError) { consumeError(RangesOrError.takeError()); @@ -426,6 +477,12 @@ if (SectionAddress) BaseAddress = SectionAddress->Address; + if (Unit.getVersion() == 5) { + Optional LocOffset = Unit.getLoclistOffset(Offset); + assert(LocOffset && "Location Offset is invalid."); + Offset = *LocOffset; + } + Error E = Unit.getLocationTable().visitLocationList( &Offset, [&](const DWARFLocationEntry &Entry) { switch (Entry.Kind) { @@ -433,11 +490,12 @@ llvm_unreachable("Unsupported DWARFLocationEntry Kind."); case dwarf::DW_LLE_end_of_list: return false; - case dwarf::DW_LLE_base_address: + case dwarf::DW_LLE_base_address: { assert(Entry.SectionIndex == SectionedAddress::UndefSection && "absolute address expected"); BaseAddress = Entry.Value0; break; + } case dwarf::DW_LLE_offset_pair: assert( (Entry.SectionIndex == SectionedAddress::UndefSection && @@ -447,9 +505,18 @@ BaseAddress + Entry.Value0, BaseAddress + Entry.Value1, Entry.Loc}); break; - case dwarf::DW_LLE_startx_length: - assert(Unit.isDWOUnit() && - "None DWO Unit with DW_LLE_startx_length encoding."); + case dwarf::DW_RLE_start_length: + InputLL.emplace_back(DebugLocationEntry{ + Entry.Value0, Entry.Value0 + Entry.Value1, Entry.Loc}); + break; + case dwarf::DW_LLE_base_addressx: { + Optional EntryAddress = + Unit.getAddrOffsetSectionItem(Entry.Value0); + assert(EntryAddress && "base Address not found."); + BaseAddress = EntryAddress->Address; + break; + } + case dwarf::DW_LLE_startx_length: { Optional EntryAddress = Unit.getAddrOffsetSectionItem(Entry.Value0); assert(EntryAddress && "Address does not exist."); @@ -458,6 +525,18 @@ EntryAddress->Address + Entry.Value1, Entry.Loc}); break; } + case dwarf::DW_LLE_startx_endx: { + Optional StartAddress = + Unit.getAddrOffsetSectionItem(Entry.Value0); + assert(StartAddress && "Start Address does not exist."); + Optional EndAddress = + Unit.getAddrOffsetSectionItem(Entry.Value1); + assert(EndAddress && "Start Address does not exist."); + InputLL.emplace_back(DebugLocationEntry{ + StartAddress->Address, EndAddress->Address, Entry.Loc}); + break; + } + } return true; }); @@ -468,42 +547,84 @@ << Twine::utohexstr(Unit.getOffset()) << '\n'; } else { const uint64_t Address = InputLL.front().LowPC; + DebugLocationsVector OutputLL; if (const BinaryFunction *Function = BC.getBinaryFunctionContainingAddress(Address)) { - DebugLocationsVector OutputLL = - Function->translateInputToOutputLocationList(InputLL); + OutputLL = Function->translateInputToOutputLocationList(InputLL); LLVM_DEBUG(if (OutputLL.empty()) { dbgs() << "BOLT-DEBUG: location list translated to an empty " "one at 0x" << Twine::utohexstr(DIE.getOffset()) << " in CU at 0x" << Twine::utohexstr(Unit.getOffset()) << '\n'; }); - DebugLocWriter.addList(AttrOffset, std::move(OutputLL)); + } else { + // It's possible for a subprogram to be removed and to have + // address of 0. Adding this entry to output to preserve debug + // information. + OutputLL = InputLL; } + uint32_t LocListIndex = 0; + dwarf::Form Form = Value.getForm(); + if (Form == dwarf::DW_FORM_sec_offset || + Form == dwarf::DW_FORM_data4) { + // For DWARF5 we can access location list entry either using + // index, or offset. If it's offset, then it's from begnning of + // the file. This implementation was before we could add entries + // to the DIE. For DWARF4 this is no-op. + // TODO: For DWARF5 convert all the offset based entries to index + // based, and insert loclist_base if necessary. + LocListIndex = DebugLoclistWriter::InvalidIndex; + } else if (Form == dwarf::DW_FORM_loclistx) + LocListIndex = Value.getRawUValue(); + else + llvm_unreachable("Unsupported LocList access Form."); + DebugLocWriter.addList(AttrOffset, LocListIndex, + std::move(OutputLL)); } } else { assert((Value.isFormClass(DWARFFormValue::FC_Exprloc) || Value.isFormClass(DWARFFormValue::FC_Block)) && "unexpected DW_AT_location form"); - if (Unit.isDWOUnit()) { + if (Unit.isDWOUnit() || Unit.getVersion()) { ArrayRef Expr = *Value.getAsBlock(); DataExtractor Data( StringRef((const char *)Expr.data(), Expr.size()), Unit.getContext().isLittleEndian(), 0); DWARFExpression LocExpr(Data, Unit.getAddressByteSize(), Unit.getFormParams().Format); + uint32_t PrevOffset = 0; + constexpr uint32_t SizeOfOpcode = 1; + constexpr uint32_t SizeOfForm = 1; for (auto &Expr : LocExpr) { - if (Expr.getCode() != dwarf::DW_OP_GNU_addr_index) + if (!(Expr.getCode() == dwarf::DW_OP_GNU_addr_index || + Expr.getCode() == dwarf::DW_OP_addrx)) continue; + uint64_t Index = Expr.getRawOperand(0); Optional EntryAddress = Unit.getAddrOffsetSectionItem(Index); assert(EntryAddress && "Address is not found."); assert(Index <= std::numeric_limits::max() && "Invalid Operand Index."); - AddrWriter->addIndexAddress(EntryAddress->Address, - static_cast(Index), - *Unit.getDWOId()); + if (Expr.getCode() == dwarf::DW_OP_addrx) { + uint32_t EncodingSize = + Expr.getOperandEndOffset(0) - PrevOffset - SizeOfOpcode; + uint32_t Index = AddrWriter->getIndexFromAddress( + EntryAddress->Address, getCUId(Unit)); + DebugInfoPatcher.addUDataPatch(AttrOffset + PrevOffset + + SizeOfOpcode + SizeOfForm, + Index, EncodingSize); + } else { + // TODO: Re-do this as DWARF5. + AddrWriter->addIndexAddress(EntryAddress->Address, + static_cast(Index), + getCUId(Unit)); + } + if (Expr.getDescription().Op[1] == + DWARFExpression::Operation::SizeNA) + PrevOffset = Expr.getOperandEndOffset(0); + else + PrevOffset = Expr.getOperandEndOffset(1); } } } @@ -530,15 +651,20 @@ "DW_FORM_LLVM_addrx_offset is not supported"); std::lock_guard Lock(DebugInfoPatcherMutex); if (Form == dwarf::DW_FORM_GNU_addr_index) { - assert(Unit.isDWOUnit() && - "DW_FORM_GNU_addr_index in Non DWO unit."); uint64_t Index = Value.getRawUValue(); // If there is no new address, storing old address. // Re-using Index to make implementation easier. - // DW_FORM_GNU_addr_index is variable lenght encoding so we either - // have to create indices of same sizes, or use same index. + // DW_FORM_GNU_addr_index is variable lenght encoding + // so we either have to create indices of same sizes, or use same + // index. + // TODO: We can now re-write .debug_info can simplify this by just + // getting new index and creating a patch. AddrWriter->addIndexAddress(NewAddress ? NewAddress : Address, - Index, *Unit.getDWOId()); + Index, getCUId(Unit)); + } else if (Form == dwarf::DW_FORM_addrx) { + uint32_t Index = AddrWriter->getIndexFromAddress( + NewAddress ? NewAddress : Address, getCUId(Unit)); + DebugInfoPatcher.addUDataPatch(AttrOffset, Index, AttrVal->Size); } else { DebugInfoPatcher.addLE64Patch(AttrOffset, NewAddress); } @@ -612,6 +738,9 @@ // are needed for ranges base. Optional RangesBaseAttrInfo = findAttributeInfo(DIE, dwarf::DW_AT_GNU_ranges_base); + if (!RangesBaseAttrInfo) + RangesBaseAttrInfo = findAttributeInfo(DIE, dwarf::DW_AT_rnglists_base); + if (RangesBaseAttrInfo) { DebugInfoPatcher.addLE32Patch(RangesBaseAttrInfo->Offset, static_cast(*RangesBase), @@ -622,15 +751,28 @@ Optional LowPCAttrInfo = findAttributeInfo(DIE, dwarf::DW_AT_low_pc); - if (AbbreviationDecl->findAttributeIndex(dwarf::DW_AT_ranges)) { + if (Optional AttrVal = + findAttributeInfo(DIE, dwarf::DW_AT_ranges)) { // Case 1: The object was already non-contiguous and had DW_AT_ranges. // In this case we simply need to update the value of DW_AT_ranges // and introduce DW_AT_GNU_ranges_base if required. - Optional AttrVal = findAttributeInfo(DIE, dwarf::DW_AT_ranges); std::lock_guard Lock(DebugInfoPatcherMutex); - DebugInfoPatcher.addLE32Patch( - AttrVal->Offset, DebugRangesOffset - DebugInfoPatcher.getRangeBase(), - AttrVal->Size); + // For DWARF5 converting all of DW_AT_ranges into DW_FORM_rnglistx + bool Converted = false; + if (DIE.getDwarfUnit()->getVersion() == 5 && + AttrVal->V.getForm() == dwarf::DW_FORM_sec_offset) { + AbbrevWriter.addAttributePatch(*DIE.getDwarfUnit(), AbbreviationDecl, + dwarf::DW_AT_ranges, dwarf::DW_AT_ranges, + dwarf::DW_FORM_rnglistx); + Converted = true; + } + if (Converted || AttrVal->V.getForm() == dwarf::DW_FORM_rnglistx) + DebugInfoPatcher.addUDataPatch(AttrVal->Offset, DebugRangesOffset, + AttrVal->Size); + else + DebugInfoPatcher.addLE32Patch( + AttrVal->Offset, DebugRangesOffset - DebugInfoPatcher.getRangeBase(), + AttrVal->Size); if (!RangesBase) { if (LowPCAttrInfo && @@ -765,15 +907,27 @@ std::unique_ptr RangesSectionContents = RangesSectionWriter->finalize(); - BC.registerOrUpdateNoteSection(".debug_ranges", - copyByteArray(*RangesSectionContents), - RangesSectionContents->size()); + BC.registerOrUpdateNoteSection( + llvm::isa(*RangesSectionWriter) + ? ".debug_rnglists" + : ".debug_ranges", + copyByteArray(*RangesSectionContents), RangesSectionContents->size()); + + if (BC.isDWARF5Used()) { + std::unique_ptr LocationListSectionContents = + makeFinalLocListsSection(DebugInfoPatcher, DWARFVersion::DWARF5); + BC.registerOrUpdateNoteSection(".debug_loclists", + copyByteArray(*LocationListSectionContents), + LocationListSectionContents->size()); + } - std::unique_ptr LocationListSectionContents = - makeFinalLocListsSection(DebugInfoPatcher); - BC.registerOrUpdateNoteSection(".debug_loc", - copyByteArray(*LocationListSectionContents), - LocationListSectionContents->size()); + if (BC.isDWARFLegacyUsed()) { + std::unique_ptr LocationListSectionContents = + makeFinalLocListsSection(DebugInfoPatcher, DWARFVersion::DWARFLegacy); + BC.registerOrUpdateNoteSection(".debug_loc", + copyByteArray(*LocationListSectionContents), + LocationListSectionContents->size()); + } // AddrWriter should be finalized after debug_loc since more addresses can be // added there. @@ -784,12 +938,40 @@ AddressSectionContents.size()); for (auto &CU : BC.DwCtx->compile_units()) { DWARFDie DIE = CU->getUnitDIE(); - if (Optional AttrVal = - findAttributeInfo(DIE, dwarf::DW_AT_GNU_addr_base)) { - uint64_t Offset = AddrWriter->getOffset(*CU->getDWOId()); - DebugInfoPatcher.addLE32Patch( - AttrVal->Offset, static_cast(Offset), AttrVal->Size); + uint64_t Offset = 0; + uint64_t AttrOffset = 0; + uint32_t Size = 0; + Optional AttrValGnu = + findAttributeInfo(DIE, dwarf::DW_AT_GNU_addr_base); + Optional AttrVal = + findAttributeInfo(DIE, dwarf::DW_AT_addr_base); + Offset = AddrWriter->getOffset(*CU); + + if (AttrValGnu) { + AttrOffset = AttrValGnu->Offset; + Size = AttrValGnu->Size; + } + + if (AttrVal) { + AttrOffset = AttrVal->Offset; + Size = AttrVal->Size; } + + if (AttrValGnu || AttrVal) + DebugInfoPatcher.addLE32Patch(AttrOffset, static_cast(Offset), + Size); + else if (CU->getVersion() == 5) { + // A case where we were not using .debug_addr section, but after update + // now using it. + const DWARFAbbreviationDeclaration *Abbrev = + DIE.getAbbreviationDeclarationPtr(); + AbbrevWriter->addAttribute(*CU, Abbrev, dwarf::DW_AT_addr_base, + dwarf::DW_FORM_sec_offset); + DebugInfoPatcher.insertNewEntry(DIE, static_cast(Offset)); + } else + assert( + false && + "DWO CU uses .debug_address, but DW_AT_GNU_addr_base is missin."); } } @@ -807,13 +989,22 @@ if (Unit->getAbbreviationsOffset() == NewAbbrevOffset) continue; - // DWARFv4 + // DWARFv4 or earlier // unit_length - 4 bytes // version - 2 bytes // So + 6 to patch debug_abbrev_offset - constexpr uint64_t AbbrevFieldOffset = 6; - if (!Unit->isTypeUnit()) { - DebugInfoPatcher.addLE32Patch(Unit->getOffset() + AbbrevFieldOffset, + constexpr uint64_t AbbrevFieldOffsetLegacy = 6; + // DWARFv5 + // unit_length - 4 bytes + // version - 2 bytes + // unit_type - 1 byte + // address_size - 1 byte + // So + 8 to patch debug_abbrev_offset + constexpr uint64_t AbbrevFieldOffsetV5 = 8; + uint64_t AbbrevOffset = + Unit->getVersion() == 5 ? AbbrevFieldOffsetV5 : AbbrevFieldOffsetLegacy; + if (!Unit->isTypeUnit() || Unit->getVersion() == 5) { + DebugInfoPatcher.addLE32Patch(Unit->getOffset() + AbbrevOffset, static_cast(NewAbbrevOffset)); continue; } @@ -825,7 +1016,7 @@ DebugTypesPatcher = static_cast(DebugTypes->getPatcher()); } - DebugTypesPatcher->addLE32Patch(Unit->getOffset() + AbbrevFieldOffset, + DebugTypesPatcher->addLE32Patch(Unit->getOffset() + AbbrevOffset, static_cast(NewAbbrevOffset)); } @@ -1291,25 +1482,40 @@ } std::unique_ptr -DWARFRewriter::makeFinalLocListsSection(SimpleBinaryPatcher &DebugInfoPatcher) { +DWARFRewriter::makeFinalLocListsSection(SimpleBinaryPatcher &DebugInfoPatcher, + DWARFVersion Version) { auto LocBuffer = std::make_unique(); auto LocStream = std::make_unique(*LocBuffer); auto Writer = std::unique_ptr(BC.createObjectWriter(*LocStream)); uint64_t SectionOffset = 0; - // Add an empty list as the first entry; - const char Zeroes[16] = {0}; - *LocStream << StringRef(Zeroes, 16); - SectionOffset += 2 * 8; + if (LocListWritersByCU.empty() || + LocListWritersByCU.begin()->second.get()->getDwarfVersion() < 5) { + // Should be fine for both DWARF4 and DWARF5? + const char Zeroes[16] = {0}; + *LocStream << StringRef(Zeroes, 16); + SectionOffset += 2 * 8; + } for (std::pair> &Loc : LocListWritersByCU) { DebugLocWriter *LocWriter = Loc.second.get(); - if (auto *LocListWriter = llvm::dyn_cast(LocWriter)) { + auto *LocListWriter = llvm::dyn_cast(LocWriter); + + if (Version == DWARFVersion::DWARF5 && + (!LocListWriter || LocListWriter->getDwarfVersion() == 4)) + continue; + + if (Version == DWARFVersion::DWARFLegacy && + (LocListWriter && LocListWriter->getDwarfVersion() == 5)) + continue; + if (LocListWriter && (LocListWriter->getDwarfVersion() == 4 || + (LocListWriter->getDwarfVersion() == 5 && + LocListWriter->isSplitDwarf()))) { SimpleBinaryPatcher *Patcher = - getBinaryDWODebugInfoPatcher(LocListWriter->getDWOID()); + getBinaryDWODebugInfoPatcher(LocListWriter->getCUID()); LocListWriter->finalize(0, *Patcher); continue; } @@ -1335,7 +1541,8 @@ dwarf::Form HighPCForm = HighPCVal->V.getForm(); if (LowPCForm != dwarf::DW_FORM_addr && - LowPCForm != dwarf::DW_FORM_GNU_addr_index) { + LowPCForm != dwarf::DW_FORM_GNU_addr_index && + LowPCForm != dwarf::DW_FORM_addrx) { errs() << "BOLT-WARNING: unexpected low_pc form value. Cannot update DIE " << "at offset 0x" << Twine::utohexstr(DIE.getOffset()) << "\n"; return; @@ -1350,7 +1557,8 @@ return; } if ((LowPCOffset == -1U || (LowPCOffset + 8 != HighPCOffset)) && - LowPCForm != dwarf::DW_FORM_GNU_addr_index) { + LowPCForm != dwarf::DW_FORM_GNU_addr_index && + LowPCForm != dwarf::DW_FORM_addrx) { errs() << "BOLT-WARNING: high_pc expected immediately after low_pc. " << "Cannot update DIE at offset 0x" << Twine::utohexstr(DIE.getOffset()) << '\n'; @@ -1363,24 +1571,27 @@ void DWARFRewriter::convertToRangesPatchAbbrev( const DWARFUnit &Unit, const DWARFAbbreviationDeclaration *Abbrev, DebugAbbrevWriter &AbbrevWriter, Optional RangesBase) { - auto getAttributeForm = [&Abbrev](const dwarf::Attribute Attr) { - Optional Index = Abbrev->findAttributeIndex(Attr); - assert(Index && "attribute not found"); - return Abbrev->getFormByIndex(*Index); - }; - dwarf::Form LowPCForm = getAttributeForm(dwarf::DW_AT_low_pc); - // DW_FORM_GNU_addr_index is already variable encoding so nothing to do - // there. - if (RangesBase) { - assert(LowPCForm != dwarf::DW_FORM_GNU_addr_index); - AbbrevWriter.addAttribute(Unit, Abbrev, dwarf::DW_AT_GNU_ranges_base, - dwarf::DW_FORM_sec_offset); + dwarf::Attribute RangeBaseAttribute = dwarf::DW_AT_GNU_ranges_base; + dwarf::Form RangesForm = dwarf::DW_FORM_sec_offset; + + if (Unit.getVersion() == 5) { + RangeBaseAttribute = dwarf::DW_AT_rnglists_base; + RangesForm = dwarf::DW_FORM_rnglistx; } + // If we hit this point it means we converted subprogram DIEs from + // low_pc/high_pc into ranges. The CU originally didn't have DW_AT_*_base, so + // we are adding it here. + if (RangesBase) + AbbrevWriter.addAttribute(Unit, Abbrev, RangeBaseAttribute, + dwarf::DW_FORM_sec_offset); + // Converting DW_AT_high_pc into DW_AT_ranges. + // For DWARF4 it's DW_FORM_sec_offset. + // For DWARF5 it can be either DW_FORM_sec_offset or DW_FORM_rnglistx. + // For consistency for DWARF5 we always use DW_FORM_rnglistx. AbbrevWriter.addAttributePatch(Unit, Abbrev, dwarf::DW_AT_high_pc, - dwarf::DW_AT_ranges, - dwarf::DW_FORM_sec_offset); + dwarf::DW_AT_ranges, RangesForm); } void DWARFRewriter::convertToRangesPatchDebugInfo( @@ -1394,19 +1605,42 @@ std::lock_guard Lock(DebugInfoPatcherMutex); uint32_t BaseOffset = 0; - if (LowPCVal->V.getForm() == dwarf::DW_FORM_GNU_addr_index) { + dwarf::Form LowForm = LowPCVal->V.getForm(); + + // In DWARF4 for DW_AT_low_pc in binary DW_FORM_addr is used. In the DWO + // section DW_FORM_GNU_addr_index is used. So for if we are converting + // DW_AT_low_pc/DW_AT_high_pc and see DW_FORM_GNU_addr_index. We are + // converting in DWO section, and DW_AT_ranges [DW_FORM_sec_offset] is + // relative to DW_AT_GNU_ranges_base. + if (LowForm == dwarf::DW_FORM_GNU_addr_index) { // Use ULEB128 for the value. - DebugInfoPatcher.addUDataPatch(LowPCOffset, 0, - std::abs(int(HighPCOffset - LowPCOffset))); + DebugInfoPatcher.addUDataPatch(LowPCOffset, 0, LowPCVal->Size); // Ranges are relative to DW_AT_GNU_ranges_base. BaseOffset = DebugInfoPatcher.getRangeBase(); } else { - DebugInfoPatcher.addLE64Patch(LowPCOffset, 0); - // If DW_AT_GNU_ranges_base was inserted. + // In DWARF 5 we can have DW_AT_low_pc either as DW_FORM_addr, or + // DW_FORM_addrx. Former is when DW_AT_rnglists_base is present. Latter is + // when it's absent. + if (LowForm == dwarf::DW_FORM_addrx) { + uint32_t Index = + AddrWriter->getIndexFromAddress(0, DIE.getDwarfUnit()->getOffset()); + DebugInfoPatcher.addUDataPatch(LowPCOffset, Index, LowPCVal->Size); + } else + DebugInfoPatcher.addLE64Patch(LowPCOffset, 0); + + // Original CU didn't have DW_AT_*_base. We converted it's children (or + // dwo), so need to insert it into CU. if (RangesBase) reinterpret_cast(DebugInfoPatcher) .insertNewEntry(DIE, *RangesBase); } - DebugInfoPatcher.addLE32Patch(HighPCOffset, RangesSectionOffset - BaseOffset, - HighPCVal->Size); + + // HighPC was conveted into DW_AT_ranges. + // For DWARF5 we only access ranges throught index. + if (DIE.getDwarfUnit()->getVersion() == 5) + DebugInfoPatcher.addUDataPatch(HighPCOffset, RangesSectionOffset, + HighPCVal->Size); + else + DebugInfoPatcher.addLE32Patch( + HighPCOffset, RangesSectionOffset - BaseOffset, HighPCVal->Size); } diff --git a/bolt/lib/Rewrite/RewriteInstance.cpp b/bolt/lib/Rewrite/RewriteInstance.cpp --- a/bolt/lib/Rewrite/RewriteInstance.cpp +++ b/bolt/lib/Rewrite/RewriteInstance.cpp @@ -311,8 +311,9 @@ constexpr const char *RewriteInstance::SectionsToOverwrite[]; std::vector RewriteInstance::DebugSectionsToOverwrite = { - ".debug_abbrev", ".debug_aranges", ".debug_line", ".debug_loc", - ".debug_ranges", ".gdb_index", ".debug_addr"}; + ".debug_abbrev", ".debug_aranges", ".debug_line", + ".debug_loc", ".debug_loclists", ".debug_ranges", + ".debug_rnglists", ".gdb_index", ".debug_addr"}; const char RewriteInstance::TimerGroupName[] = "rewrite"; const char RewriteInstance::TimerGroupDesc[] = "Rewrite passes"; diff --git a/bolt/test/X86/Inputs/dwarf5_helper.s b/bolt/test/X86/Inputs/dwarf5_helper.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/Inputs/dwarf5_helper.s @@ -0,0 +1,424 @@ +# clang++ helper.cpp -g -O2 -S +# int fooVar = 0; +# void useFoo(int * x) { +# *x += 4; +# } +# +# int foo(int argc) { +# int x = argc; +# useFoo(&x); +# return x; +# } + .text + .file "foo.cpp" + .file 0 "/testLocListMultiple" "foo.cpp" md5 0x9410f31145d031fcc1f2464b809e409a + .globl _Z6useFooPi # -- Begin function _Z6useFooPi + .p2align 4, 0x90 + .type _Z6useFooPi,@function +_Z6useFooPi: # @_Z6useFooPi +.Lfunc_begin0: + .loc 0 2 0 # foo.cpp:2:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: useFoo:x <- $rdi + .loc 0 3 4 prologue_end # foo.cpp:3:4 + addl $4, (%rdi) + .loc 0 4 1 # foo.cpp:4:1 + retq +.Ltmp0: +.Lfunc_end0: + .size _Z6useFooPi, .Lfunc_end0-_Z6useFooPi + .cfi_endproc + # -- End function + .globl _Z3fooi # -- Begin function _Z3fooi + .p2align 4, 0x90 + .type _Z3fooi,@function +_Z3fooi: # @_Z3fooi +.Lfunc_begin1: + .loc 0 6 0 # foo.cpp:6:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: foo:argc <- $edi + #DEBUG_VALUE: foo:x <- $edi + # kill: def $edi killed $edi def $rdi + #DEBUG_VALUE: useFoo:x <- undef + .loc 0 3 4 prologue_end # foo.cpp:3:4 + leal 4(%rdi), %eax +.Ltmp1: + #DEBUG_VALUE: foo:x <- $eax + .loc 0 9 4 # foo.cpp:9:4 + retq +.Ltmp2: +.Lfunc_end1: + .size _Z3fooi, .Lfunc_end1-_Z3fooi + .cfi_endproc + # -- End function + .type fooVar,@object # @fooVar + .bss + .globl fooVar + .p2align 2 +fooVar: + .long 0 # 0x0 + .size fooVar, 4 + + .section .debug_loclists,"",@progbits + .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length +.Ldebug_list_header_start0: + .short 5 # Version + .byte 8 # Address size + .byte 0 # Segment selector size + .long 1 # Offset entry count +.Lloclists_table_base0: + .long .Ldebug_loc0-.Lloclists_table_base0 +.Ldebug_loc0: + .byte 4 # DW_LLE_offset_pair + .uleb128 .Lfunc_begin1-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset + .byte 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .byte 4 # DW_LLE_offset_pair + .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset + .uleb128 .Lfunc_end1-.Lfunc_begin0 # ending offset + .byte 1 # Loc expr size + .byte 80 # super-register DW_OP_reg0 + .byte 0 # DW_LLE_end_of_list +.Ldebug_list_header_end0: + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 37 # DW_AT_producer + .byte 37 # DW_FORM_strx1 + .byte 19 # DW_AT_language + .byte 5 # DW_FORM_data2 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .ascii "\214\001" # DW_AT_loclists_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 62 # DW_AT_encoding + .byte 11 # DW_FORM_data1 + .byte 11 # DW_AT_byte_size + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 4 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 6 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 110 # DW_AT_linkage_name + .byte 37 # DW_FORM_strx1 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 32 # DW_AT_inline + .byte 33 # DW_FORM_implicit_const + .byte 1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 7 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 8 # Abbreviation Code + .byte 15 # DW_TAG_pointer_type + .byte 0 # DW_CHILDREN_no + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 9 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 110 # DW_AT_linkage_name + .byte 37 # DW_FORM_strx1 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 10 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 11 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 34 # DW_FORM_loclistx + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 12 # Abbreviation Code + .byte 29 # DW_TAG_inlined_subroutine + .byte 0 # DW_CHILDREN_no + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 88 # DW_AT_call_file + .byte 11 # DW_FORM_data1 + .byte 89 # DW_AT_call_line + .byte 11 # DW_FORM_data1 + .byte 87 # DW_AT_call_column + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + .section .debug_info,"",@progbits +.Lcu_begin0: + .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit +.Ldebug_info_start0: + .short 5 # DWARF version number + .byte 1 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 1 # Abbrev [1] 0xc:0x83 DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # DW_AT_name + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .long .Lline_table_start0 # DW_AT_stmt_list + .byte 2 # DW_AT_comp_dir + .byte 1 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .long .Lloclists_table_base0 # DW_AT_loclists_base + .byte 2 # Abbrev [2] 0x27:0xb DW_TAG_variable + .byte 3 # DW_AT_name + .long 50 # DW_AT_type + # DW_AT_external + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .byte 2 # DW_AT_location + .byte 161 + .byte 0 + .byte 3 # Abbrev [3] 0x32:0x4 DW_TAG_base_type + .byte 4 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 4 # Abbrev [4] 0x36:0x14 DW_TAG_subprogram + .byte 1 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .long 74 # DW_AT_abstract_origin + .byte 5 # Abbrev [5] 0x42:0x7 DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .long 79 # DW_AT_abstract_origin + .byte 0 # End Of Children Mark + .byte 6 # Abbrev [6] 0x4a:0xe DW_TAG_subprogram + .byte 5 # DW_AT_linkage_name + .byte 6 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 2 # DW_AT_decl_line + # DW_AT_external + # DW_AT_inline + .byte 7 # Abbrev [7] 0x4f:0x8 DW_TAG_formal_parameter + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 2 # DW_AT_decl_line + .long 88 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 8 # Abbrev [8] 0x58:0x5 DW_TAG_pointer_type + .long 50 # DW_AT_type + .byte 9 # Abbrev [9] 0x5d:0x31 DW_TAG_subprogram + .byte 2 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .byte 8 # DW_AT_linkage_name + .byte 9 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 6 # DW_AT_decl_line + .long 50 # DW_AT_type + # DW_AT_external + .byte 10 # Abbrev [10] 0x6d:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .byte 10 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 6 # DW_AT_decl_line + .long 50 # DW_AT_type + .byte 11 # Abbrev [11] 0x77:0x9 DW_TAG_variable + .byte 0 # DW_AT_location + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .long 50 # DW_AT_type + .byte 12 # Abbrev [12] 0x80:0xd DW_TAG_inlined_subroutine + .long 74 # DW_AT_abstract_origin + .byte 2 # DW_AT_low_pc + .long .Ltmp1-.Lfunc_begin1 # DW_AT_high_pc + .byte 0 # DW_AT_call_file + .byte 8 # DW_AT_call_line + .byte 4 # DW_AT_call_column + .byte 0 # End Of Children Mark + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_str_offsets,"",@progbits + .long 48 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0)" # string offset=0 +.Linfo_string1: + .asciz "foo.cpp" # string offset=134 +.Linfo_string2: + .asciz "/testLocListMultiple" # string offset=142 +.Linfo_string3: + .asciz "fooVar" # string offset=199 +.Linfo_string4: + .asciz "int" # string offset=206 +.Linfo_string5: + .asciz "_Z6useFooPi" # string offset=210 +.Linfo_string6: + .asciz "useFoo" # string offset=222 +.Linfo_string7: + .asciz "x" # string offset=229 +.Linfo_string8: + .asciz "_Z3fooi" # string offset=231 +.Linfo_string9: + .asciz "foo" # string offset=239 +.Linfo_string10: + .asciz "argc" # string offset=243 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .long .Linfo_string5 + .long .Linfo_string6 + .long .Linfo_string7 + .long .Linfo_string8 + .long .Linfo_string9 + .long .Linfo_string10 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad fooVar + .quad .Lfunc_begin0 + .quad .Lfunc_begin1 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/Inputs/dwarf5_main.s b/bolt/test/X86/Inputs/dwarf5_main.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/Inputs/dwarf5_main.s @@ -0,0 +1,394 @@ +# clang++ main.cpp -g -O2 -S +# void use(int * x, int * y) { +# *x += 4; +# *y -= 2; +# } +# +# extern int fooVar; +# int main(int argc, char *argv[]) { +# int x = argc; +# int y = fooVar + 3; +# use(&x, &y); +# return x + y; +# } + + + .text + .file "main.cpp" + .globl _Z3usePiS_ # -- Begin function _Z3usePiS_ + .p2align 4, 0x90 + .type _Z3usePiS_,@function +_Z3usePiS_: # @_Z3usePiS_ +.Lfunc_begin0: + .file 0 "/testLocListMultiple" "main.cpp" md5 0xb1a1551182284263b0faa0cae08277da + .loc 0 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: use:x <- $rdi + #DEBUG_VALUE: use:y <- $rsi + .loc 0 2 4 prologue_end # main.cpp:2:4 + addl $4, (%rdi) + .loc 0 3 4 # main.cpp:3:4 + addl $-2, (%rsi) + .loc 0 4 1 # main.cpp:4:1 + retq +.Ltmp0: +.Lfunc_end0: + .size _Z3usePiS_, .Lfunc_end0-_Z3usePiS_ + .cfi_endproc + # -- End function + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin1: + .loc 0 7 0 # main.cpp:7:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: main:argc <- $edi + #DEBUG_VALUE: main:argv <- $rsi + #DEBUG_VALUE: main:x <- $edi + # kill: def $edi killed $edi def $rdi + .loc 0 9 12 prologue_end # main.cpp:9:12 + movl fooVar(%rip), %eax +.Ltmp1: + #DEBUG_VALUE: main:y <- [DW_OP_plus_uconst 3, DW_OP_stack_value] $eax + #DEBUG_VALUE: main:y <- [DW_OP_plus_uconst 1, DW_OP_stack_value] $eax + #DEBUG_VALUE: main:x <- [DW_OP_plus_uconst 4, DW_OP_stack_value] $edi + .loc 0 11 13 # main.cpp:11:13 + addl %edi, %eax +.Ltmp2: + addl $5, %eax + .loc 0 11 4 is_stmt 0 # main.cpp:11:4 + retq +.Ltmp3: +.Lfunc_end1: + .size main, .Lfunc_end1-main + .cfi_endproc + # -- End function + .section .debug_loclists,"",@progbits + .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length +.Ldebug_list_header_start0: + .short 5 # Version + .byte 8 # Address size + .byte 0 # Segment selector size + .long 2 # Offset entry count +.Lloclists_table_base0: + .long .Ldebug_loc0-.Lloclists_table_base0 + .long .Ldebug_loc1-.Lloclists_table_base0 +.Ldebug_loc0: + .byte 4 # DW_LLE_offset_pair + .uleb128 .Lfunc_begin1-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset + .byte 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .byte 4 # DW_LLE_offset_pair + .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset + .uleb128 .Lfunc_end1-.Lfunc_begin0 # ending offset + .byte 10 # Loc expr size + .byte 117 # DW_OP_breg5 + .byte 4 # 4 + .byte 16 # DW_OP_constu + .byte 255 # 4294967295 + .byte 255 # + .byte 255 # + .byte 255 # + .byte 15 # + .byte 26 # DW_OP_and + .byte 159 # DW_OP_stack_value + .byte 0 # DW_LLE_end_of_list +.Ldebug_loc1: + .byte 4 # DW_LLE_offset_pair + .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp2-.Lfunc_begin0 # ending offset + .byte 10 # Loc expr size + .byte 112 # DW_OP_breg0 + .byte 1 # 1 + .byte 16 # DW_OP_constu + .byte 255 # 4294967295 + .byte 255 # + .byte 255 # + .byte 255 # + .byte 15 # + .byte 26 # DW_OP_and + .byte 159 # DW_OP_stack_value + .byte 0 # DW_LLE_end_of_list +.Ldebug_list_header_end0: + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 37 # DW_AT_producer + .byte 37 # DW_FORM_strx1 + .byte 19 # DW_AT_language + .byte 5 # DW_FORM_data2 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .ascii "\214\001" # DW_AT_loclists_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 110 # DW_AT_linkage_name + .byte 37 # DW_FORM_strx1 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 4 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 34 # DW_FORM_loclistx + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 6 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 62 # DW_AT_encoding + .byte 11 # DW_FORM_data1 + .byte 11 # DW_AT_byte_size + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 7 # Abbreviation Code + .byte 15 # DW_TAG_pointer_type + .byte 0 # DW_CHILDREN_no + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + .section .debug_info,"",@progbits +.Lcu_begin0: + .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit +.Ldebug_info_start0: + .short 5 # DWARF version number + .byte 1 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 1 # Abbrev [1] 0xc:0x8a DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # DW_AT_name + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .long .Lline_table_start0 # DW_AT_stmt_list + .byte 2 # DW_AT_comp_dir + .byte 0 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .long .Lloclists_table_base0 # DW_AT_loclists_base + .byte 2 # Abbrev [2] 0x27:0x21 DW_TAG_subprogram + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .byte 3 # DW_AT_linkage_name + .byte 4 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + # DW_AT_external + .byte 3 # Abbrev [3] 0x33:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 130 # DW_AT_type + .byte 3 # Abbrev [3] 0x3d:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .byte 8 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 130 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 4 # Abbrev [4] 0x48:0x36 DW_TAG_subprogram + .byte 1 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .byte 5 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .long 126 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0x57:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .byte 9 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .long 126 # DW_AT_type + .byte 3 # Abbrev [3] 0x61:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .byte 10 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .long 135 # DW_AT_type + .byte 5 # Abbrev [5] 0x6b:0x9 DW_TAG_variable + .byte 0 # DW_AT_location + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 8 # DW_AT_decl_line + .long 126 # DW_AT_type + .byte 5 # Abbrev [5] 0x74:0x9 DW_TAG_variable + .byte 1 # DW_AT_location + .byte 8 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 9 # DW_AT_decl_line + .long 126 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 6 # Abbrev [6] 0x7e:0x4 DW_TAG_base_type + .byte 6 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 7 # Abbrev [7] 0x82:0x5 DW_TAG_pointer_type + .long 126 # DW_AT_type + .byte 7 # Abbrev [7] 0x87:0x5 DW_TAG_pointer_type + .long 140 # DW_AT_type + .byte 7 # Abbrev [7] 0x8c:0x5 DW_TAG_pointer_type + .long 145 # DW_AT_type + .byte 6 # Abbrev [6] 0x91:0x4 DW_TAG_base_type + .byte 11 # DW_AT_name + .byte 6 # DW_AT_encoding + .byte 1 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_str_offsets,"",@progbits + .long 52 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=134 +.Linfo_string2: + .asciz "/testLocListMultiple" # string offset=143 +.Linfo_string3: + .asciz "_Z3usePiS_" # string offset=200 +.Linfo_string4: + .asciz "use" # string offset=211 +.Linfo_string5: + .asciz "main" # string offset=215 +.Linfo_string6: + .asciz "int" # string offset=220 +.Linfo_string7: + .asciz "x" # string offset=224 +.Linfo_string8: + .asciz "y" # string offset=226 +.Linfo_string9: + .asciz "argc" # string offset=228 +.Linfo_string10: + .asciz "argv" # string offset=233 +.Linfo_string11: + .asciz "char" # string offset=238 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .long .Linfo_string5 + .long .Linfo_string6 + .long .Linfo_string7 + .long .Linfo_string8 + .long .Linfo_string9 + .long .Linfo_string10 + .long .Linfo_string11 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad .Lfunc_begin0 + .quad .Lfunc_begin1 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/dwarf5-debug-info-dwarf4-debug-line.s b/bolt/test/X86/dwarf5-debug-info-dwarf4-debug-line.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-debug-info-dwarf4-debug-line.s @@ -0,0 +1,167 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o +# RUN: %clang %cflags -dwarf-5 %t1.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-line %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-line %t.bolt | FileCheck --check-prefix=POSTCHECK %s + +# This test checks that .debug_line gets generated correctly when .debug_info is DWARF5, and .debug_line is DWARF4. + +# PRECHECK: version: 4 +# PRECHECK: file_names[ 1]: +# PRECHECK-NEXT: name: "main.cpp" +# PRECHECK-NEXT: dir_index: 0 +# PRECHECK-NEXT: mod_time: 0x00000000 +# PRECHECK-NEXT: length: 0x00000000 + +# POSTCHECK: version: 4 +# POSTCHECK: file_names[ 1]: +# POSTCHECK-NEXT: name: "main.cpp" +# POSTCHECK-NEXT: dir_index: 0 +# POSTCHECK-NEXT: mod_time: 0x00000000 +# POSTCHECK-NEXT: length: 0x00000000 + +# int main() { +# return 0; +# } + + + .file "main.cpp" + .text +.Ltext0: + .globl main + .type main, @function +main: +.LFB0: + .file 1 "main.cpp" + .loc 1 1 12 + .cfi_startproc + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset 6, -16 + movq %rsp, %rbp + .cfi_def_cfa_register 6 + .loc 1 2 10 + movl $0, %eax + .loc 1 3 1 + popq %rbp + .cfi_def_cfa 7, 8 + ret + .cfi_endproc +.LFE0: + .size main, .-main +.Letext0: + .section .debug_info,"",@progbits +.Ldebug_info0: + .long 0x50 + .value 0x5 + .byte 0x1 + .byte 0x8 + .long .Ldebug_abbrev0 + .uleb128 0x1 + .long .LASF0 + .byte 0x21 + .long .LASF1 + .long .LASF2 + .quad .Ltext0 + .quad .Letext0-.Ltext0 + .long .Ldebug_line0 + .uleb128 0x2 + .long .LASF3 + .byte 0x1 + .byte 0x1 + .byte 0x5 + .long 0x4c + .quad .LFB0 + .quad .LFE0-.LFB0 + .uleb128 0x1 + .byte 0x9c + .uleb128 0x3 + .byte 0x4 + .byte 0x5 + .string "int" + .byte 0 + .section .debug_abbrev,"",@progbits +.Ldebug_abbrev0: + .uleb128 0x1 + .uleb128 0x11 + .byte 0x1 + .uleb128 0x25 + .uleb128 0xe + .uleb128 0x13 + .uleb128 0xb + .uleb128 0x3 + .uleb128 0xe + .uleb128 0x1b + .uleb128 0xe + .uleb128 0x11 + .uleb128 0x1 + .uleb128 0x12 + .uleb128 0x7 + .uleb128 0x10 + .uleb128 0x17 + .byte 0 + .byte 0 + .uleb128 0x2 + .uleb128 0x2e + .byte 0 + .uleb128 0x3f + .uleb128 0x19 + .uleb128 0x3 + .uleb128 0xe + .uleb128 0x3a + .uleb128 0xb + .uleb128 0x3b + .uleb128 0xb + .uleb128 0x39 + .uleb128 0xb + .uleb128 0x49 + .uleb128 0x13 + .uleb128 0x11 + .uleb128 0x1 + .uleb128 0x12 + .uleb128 0x7 + .uleb128 0x40 + .uleb128 0x18 + .uleb128 0x7a + .uleb128 0x19 + .byte 0 + .byte 0 + .uleb128 0x3 + .uleb128 0x24 + .byte 0 + .uleb128 0xb + .uleb128 0xb + .uleb128 0x3e + .uleb128 0xb + .uleb128 0x3 + .uleb128 0x8 + .byte 0 + .byte 0 + .byte 0 + .section .debug_aranges,"",@progbits + .long 0x2c + .value 0x2 + .long .Ldebug_info0 + .byte 0x8 + .byte 0 + .value 0 + .value 0 + .quad .Ltext0 + .quad .Letext0-.Ltext0 + .quad 0 + .quad 0 + .section .debug_line,"",@progbits +.Ldebug_line0: + .section .debug_str,"MS",@progbits,1 +.LASF0: + .string "GNU C++14 8.5.0 20210514 (Red Hat 8.5.0-3) -mtune=generic -march=x86-64 -g2 -gdwarf-5" +.LASF1: + .string "main.cpp" +.LASF3: + .string "main" +.LASF2: + .string "." + .ident "GCC: (GNU) 8.5.0 20210514 (Red Hat 8.5.0-3)" + .section .note.GNU-stack,"",@progbits diff --git a/bolt/test/X86/dwarf5-debug-line.s b/bolt/test/X86/dwarf5-debug-line.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-debug-line.s @@ -0,0 +1,185 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o +# RUN: %clang %cflags -dwarf-5 %t1.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-line %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-line %t.bolt | FileCheck --check-prefix=POSTCHECK %s + +# This test checks that DWARF5 .debug_line is handled correctly. + +# PRECHECK: version: 5 +# PRECHECK: include_directories[ 0] = .debug_line_str[0x00000000] +# PRECHECK-NEXT: file_names[ 0]: +# PRECHECK-NEXT: name: .debug_line_str[0x00000002] = "main.cpp" +# PRECHECK-NEXT: dir_index: 0 +# PRECHECK-NEXT: md5_checksum: bb12fec8d002b1f0e06f7dee4604c6cc +# PRECHECK-NOT: file_names[ 1]: + +# POSTCHECK: version: 5 +# POSTCHECK: include_directories[ 0] = .debug_line_str[0x00000000] +# POSTCHECK-NEXT: file_names[ 0]: +# POSTCHECK-NEXT: name: .debug_line_str[0x00000002] = "main.cpp" +# POSTCHECK-NEXT: dir_index: 0 +# POSTCHECK-NEXT: md5_checksum: bb12fec8d002b1f0e06f7dee4604c6cc +# POSTCHECK-NOT: file_names[ 1]: + +# int main() { +# return 0; +# } + + .text + .file "main.cpp" + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin0: + .file 0 "." "main.cpp" md5 0xbb12fec8d002b1f0e06f7dee4604c6cc + .loc 0 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp + movl $0, -4(%rbp) +.Ltmp0: + .loc 0 2 3 prologue_end # main.cpp:2:3 + xorl %eax, %eax + popq %rbp + .cfi_def_cfa %rsp, 8 + retq +.Ltmp1: +.Lfunc_end0: + .size main, .Lfunc_end0-main + .cfi_endproc + # -- End function + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 37 # DW_AT_producer + .byte 37 # DW_FORM_strx1 + .byte 19 # DW_AT_language + .byte 5 # DW_FORM_data2 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 0 # DW_CHILDREN_no + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 62 # DW_AT_encoding + .byte 11 # DW_FORM_data1 + .byte 11 # DW_AT_byte_size + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + .section .debug_info,"",@progbits +.Lcu_begin0: + .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit +.Ldebug_info_start0: + .short 5 # DWARF version number + .byte 1 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 1 # Abbrev [1] 0xc:0x2b DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # DW_AT_name + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .long .Lline_table_start0 # DW_AT_stmt_list + .byte 2 # DW_AT_comp_dir + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .byte 2 # Abbrev [2] 0x23:0xf DW_TAG_subprogram + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 86 + .byte 3 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 50 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0x32:0x4 DW_TAG_base_type + .byte 4 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_str_offsets,"",@progbits + .long 24 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=134 +.Linfo_string2: + .asciz "." # string offset=143 +.Linfo_string3: + .asciz "main" # string offset=180 +.Linfo_string4: + .asciz "int" # string offset=185 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad .Lfunc_begin0 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/dwarf5-debug-loclists.s b/bolt/test/X86/dwarf5-debug-loclists.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-debug-loclists.s @@ -0,0 +1,439 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o +# RUN: %clang %cflags -dwarf-5 %t1.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-addr %t.bolt > %t.txt +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt +# RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s + +# This tests checks that re-writing of .debug_loclists is handled correctly. + +# PRECHECK: version = 0x0005 +# PRECHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x0000000c) +# PRECHECK-EMPTY: +# PRECHECK: DW_TAG_variable +# PRECHECK: DW_AT_location [DW_FORM_loclistx] +# PRECHECK-SAME: indexed (0x0) +# PRECHECK-SAME: loclist = 0x00000010 + +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR:]] +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR2:]] +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x0000000c) +# POSTCHECK: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) +# POSTCHECK: DW_TAG_variable +# POSTCHECK: DW_AT_location [DW_FORM_loclistx] +# POSTCHECK-SAME: indexed (0x0) +# POSTCHECK-SAME: loclist = 0x00000010 +# POSTCHECK-NEXT: [0x[[#ADDR]] +# POSTCHECK-SAME: 0x[[#ADDR + 3]] +# POSTCHECK-NEXT: [0x[[#ADDR2]] +# POSTCHECK-SAME: 0x[[#ADDR2 + 1]] + +# clang++ main.cpp -g -O2 -S +# void use(int * x) { +# *x += 4; +# } +# +# int main(int argc, char *argv[]) { +# int x = argc; +# use(&x); +# return x; +# } + + .text + .file "main.cpp" + .globl _Z3usePi # -- Begin function _Z3usePi + .p2align 4, 0x90 + .type _Z3usePi,@function +_Z3usePi: # @_Z3usePi +.Lfunc_begin0: + .file 0 "testLocList" "main.cpp" md5 0x95a77c95663d823a6228bf928825e8c7 + .loc 0 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: use:x <- $rdi + .loc 0 2 4 prologue_end # main.cpp:2:4 + addl $4, (%rdi) + .loc 0 3 1 # main.cpp:3:1 + retq +.Ltmp0: +.Lfunc_end0: + .size _Z3usePi, .Lfunc_end0-_Z3usePi + .cfi_endproc + # -- End function + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin1: + .loc 0 5 0 # main.cpp:5:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: main:argc <- $edi + #DEBUG_VALUE: main:argv <- $rsi + #DEBUG_VALUE: main:x <- $edi + # kill: def $edi killed $edi def $rdi + #DEBUG_VALUE: use:x <- undef + .loc 0 2 4 prologue_end # main.cpp:2:4 + leal 4(%rdi), %eax +.Ltmp1: + #DEBUG_VALUE: main:x <- $eax + .loc 0 8 4 # main.cpp:8:4 + retq +.Ltmp2: +.Lfunc_end1: + .size main, .Lfunc_end1-main + .cfi_endproc + # -- End function + .section .debug_loclists,"",@progbits + .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length +.Ldebug_list_header_start0: + .short 5 # Version + .byte 8 # Address size + .byte 0 # Segment selector size + .long 1 # Offset entry count +.Lloclists_table_base0: + .long .Ldebug_loc0-.Lloclists_table_base0 +.Ldebug_loc0: + .byte 4 # DW_LLE_offset_pair + .uleb128 .Lfunc_begin1-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset + .byte 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .byte 4 # DW_LLE_offset_pair + .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset + .uleb128 .Lfunc_end1-.Lfunc_begin0 # ending offset + .byte 1 # Loc expr size + .byte 80 # super-register DW_OP_reg0 + .byte 0 # DW_LLE_end_of_list +.Ldebug_list_header_end0: + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 37 # DW_AT_producer + .byte 37 # DW_FORM_strx1 + .byte 19 # DW_AT_language + .byte 5 # DW_FORM_data2 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .ascii "\214\001" # DW_AT_loclists_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 4 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 110 # DW_AT_linkage_name + .byte 37 # DW_FORM_strx1 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 32 # DW_AT_inline + .byte 33 # DW_FORM_implicit_const + .byte 1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 6 # Abbreviation Code + .byte 15 # DW_TAG_pointer_type + .byte 0 # DW_CHILDREN_no + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 7 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 62 # DW_AT_encoding + .byte 11 # DW_FORM_data1 + .byte 11 # DW_AT_byte_size + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 8 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 9 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 10 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 34 # DW_FORM_loclistx + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 11 # Abbreviation Code + .byte 29 # DW_TAG_inlined_subroutine + .byte 0 # DW_CHILDREN_no + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 88 # DW_AT_call_file + .byte 11 # DW_FORM_data1 + .byte 89 # DW_AT_call_line + .byte 11 # DW_FORM_data1 + .byte 87 # DW_AT_call_column + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + .section .debug_info,"",@progbits +.Lcu_begin0: + .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit +.Ldebug_info_start0: + .short 5 # DWARF version number + .byte 1 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 1 # Abbrev [1] 0xc:0x8f DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # DW_AT_name + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .long .Lline_table_start0 # DW_AT_stmt_list + .byte 2 # DW_AT_comp_dir + .byte 0 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .long .Lloclists_table_base0 # DW_AT_loclists_base + .byte 2 # Abbrev [2] 0x27:0x14 DW_TAG_subprogram + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .long 59 # DW_AT_abstract_origin + .byte 3 # Abbrev [3] 0x33:0x7 DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .long 64 # DW_AT_abstract_origin + .byte 0 # End Of Children Mark + .byte 4 # Abbrev [4] 0x3b:0xe DW_TAG_subprogram + .byte 3 # DW_AT_linkage_name + .byte 4 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + # DW_AT_external + # DW_AT_inline + .byte 5 # Abbrev [5] 0x40:0x8 DW_TAG_formal_parameter + .byte 5 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 73 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 6 # Abbrev [6] 0x49:0x5 DW_TAG_pointer_type + .long 78 # DW_AT_type + .byte 7 # Abbrev [7] 0x4e:0x4 DW_TAG_base_type + .byte 6 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 8 # Abbrev [8] 0x52:0x3a DW_TAG_subprogram + .byte 1 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 78 # DW_AT_type + # DW_AT_external + .byte 9 # Abbrev [9] 0x61:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .byte 8 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 78 # DW_AT_type + .byte 9 # Abbrev [9] 0x6b:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .byte 9 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 140 # DW_AT_type + .byte 10 # Abbrev [10] 0x75:0x9 DW_TAG_variable + .byte 0 # DW_AT_location + .byte 5 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 6 # DW_AT_decl_line + .long 78 # DW_AT_type + .byte 11 # Abbrev [11] 0x7e:0xd DW_TAG_inlined_subroutine + .long 59 # DW_AT_abstract_origin + .byte 1 # DW_AT_low_pc + .long .Ltmp1-.Lfunc_begin1 # DW_AT_high_pc + .byte 0 # DW_AT_call_file + .byte 7 # DW_AT_call_line + .byte 4 # DW_AT_call_column + .byte 0 # End Of Children Mark + .byte 6 # Abbrev [6] 0x8c:0x5 DW_TAG_pointer_type + .long 145 # DW_AT_type + .byte 6 # Abbrev [6] 0x91:0x5 DW_TAG_pointer_type + .long 150 # DW_AT_type + .byte 7 # Abbrev [7] 0x96:0x4 DW_TAG_base_type + .byte 10 # DW_AT_name + .byte 6 # DW_AT_encoding + .byte 1 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_str_offsets,"",@progbits + .long 48 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0)" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=134 +.Linfo_string2: + .asciz "/testLocList" # string offset=143 +.Linfo_string3: + .asciz "_Z3usePi" # string offset=192 +.Linfo_string4: + .asciz "use" # string offset=201 +.Linfo_string5: + .asciz "x" # string offset=205 +.Linfo_string6: + .asciz "int" # string offset=207 +.Linfo_string7: + .asciz "main" # string offset=211 +.Linfo_string8: + .asciz "argc" # string offset=216 +.Linfo_string9: + .asciz "argv" # string offset=221 +.Linfo_string10: + .asciz "char" # string offset=226 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .long .Linfo_string5 + .long .Linfo_string6 + .long .Linfo_string7 + .long .Linfo_string8 + .long .Linfo_string9 + .long .Linfo_string10 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad .Lfunc_begin0 + .quad .Lfunc_begin1 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/dwarf5-label-low-pc.s b/bolt/test/X86/dwarf5-label-low-pc.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-label-low-pc.s @@ -0,0 +1,302 @@ + +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o +# RUN: %clang %cflags -dwarf-5 %tmain.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s + +# RUN: llvm-dwarfdump --show-form --verbose --debug-addr %t.bolt > %t.txt +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt + +# This test checks that we correctly handle DW_AT_low_pc [DW_FORM_addrx] that is part of DW_TAG_label. + +# PRECHECK: version = 0x0005 +# PRECHECK: DW_TAG_label +# PRECHECK-NEXT: DW_AT_name +# PRECHECK-NEXT: DW_AT_decl_file +# PRECHECK-NEXT: DW_AT_decl_line +# PRECHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000001) +# PRECHECK: DW_TAG_label +# PRECHECK-NEXT: DW_AT_name +# PRECHECK-NEXT: DW_AT_decl_file +# PRECHECK-NEXT: DW_AT_decl_line +# PRECHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000002) + + +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR:]] +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR2:]] + +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_TAG_label +# POSTCHECK-NEXT: DW_AT_name +# POSTCHECK-NEXT: DW_AT_decl_file +# POSTCHECK-NEXT: DW_AT_decl_line +# POSTCHECK-NEXT: +# POSTCHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000002) +# POSTCHECK-SAME: [0x[[#ADDR]] +# POSTCHECK: DW_TAG_label +# POSTCHECK-NEXT: DW_AT_name +# POSTCHECK-NEXT: DW_AT_decl_file +# POSTCHECK-NEXT: DW_AT_decl_line +# POSTCHECK-NEXT: +# POSTCHECK-NEXT:DW_AT_low_pc [DW_FORM_addrx] (indexed (00000003) +# POSTCHECK-SAME: [0x[[#ADDR2]] + +# clang++ main.cpp -g -S +# int main() { +# int a = 4; +# if (a == 5) +# goto LABEL1; +# else +# goto LABEL2; +# LABEL1:a++; +# LABEL2:a--; +# return 0; +# } + + .text + .file "main.cpp" + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin0: + .file 0 "/testLabel" "main.cpp" md5 0xa0bd66020d06f1303de7008e3c542050 + .loc 0 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp + movl $0, -4(%rbp) +.Ltmp0: + .loc 0 2 7 prologue_end # main.cpp:2:7 + movl $4, -8(%rbp) +.Ltmp1: + .loc 0 3 9 # main.cpp:3:9 + cmpl $5, -8(%rbp) +.Ltmp2: + .loc 0 3 7 is_stmt 0 # main.cpp:3:7 + jne .LBB0_2 +# %bb.1: # %if.then +.Ltmp3: + .loc 0 4 5 is_stmt 1 # main.cpp:4:5 + jmp .LBB0_3 +.LBB0_2: # %if.else + .loc 0 6 5 # main.cpp:6:5 + jmp .LBB0_4 +.Ltmp4: +.LBB0_3: # %LABEL1 + #DEBUG_LABEL: main:LABEL1 + .loc 0 7 11 # main.cpp:7:11 + movl -8(%rbp), %eax + addl $1, %eax + movl %eax, -8(%rbp) +.LBB0_4: # %LABEL2 +.Ltmp5: + #DEBUG_LABEL: main:LABEL2 + .loc 0 8 11 # main.cpp:8:11 + movl -8(%rbp), %eax + addl $-1, %eax + movl %eax, -8(%rbp) + .loc 0 9 3 # main.cpp:9:3 + xorl %eax, %eax + popq %rbp + .cfi_def_cfa %rsp, 8 + retq +.Ltmp6: +.Lfunc_end0: + .size main, .Lfunc_end0-main + .cfi_endproc + # -- End function + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 37 # DW_AT_producer + .byte 37 # DW_FORM_strx1 + .byte 19 # DW_AT_language + .byte 5 # DW_FORM_data2 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 4 # Abbreviation Code + .byte 10 # DW_TAG_label + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 62 # DW_AT_encoding + .byte 11 # DW_FORM_data1 + .byte 11 # DW_AT_byte_size + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + .section .debug_info,"",@progbits +.Lcu_begin0: + .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit +.Ldebug_info_start0: + .short 5 # DWARF version number + .byte 1 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 1 # Abbrev [1] 0xc:0x41 DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # DW_AT_name + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .long .Lline_table_start0 # DW_AT_stmt_list + .byte 2 # DW_AT_comp_dir + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .byte 2 # Abbrev [2] 0x23:0x25 DW_TAG_subprogram + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 86 + .byte 3 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 72 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0x32:0xb DW_TAG_variable + .byte 2 # DW_AT_location + .byte 145 + .byte 120 + .byte 5 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 2 # DW_AT_decl_line + .long 72 # DW_AT_type + .byte 4 # Abbrev [4] 0x3d:0x5 DW_TAG_label + .byte 6 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .byte 1 # DW_AT_low_pc + .byte 4 # Abbrev [4] 0x42:0x5 DW_TAG_label + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 8 # DW_AT_decl_line + .byte 2 # DW_AT_low_pc + .byte 0 # End Of Children Mark + .byte 5 # Abbrev [5] 0x48:0x4 DW_TAG_base_type + .byte 4 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_str_offsets,"",@progbits + .long 36 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=134 +.Linfo_string2: + .asciz "/testLabel" # string offset=143 +.Linfo_string3: + .asciz "main" # string offset=190 +.Linfo_string4: + .asciz "int" # string offset=195 +.Linfo_string5: + .asciz "a" # string offset=199 +.Linfo_string6: + .asciz "LABEL1" # string offset=201 +.Linfo_string7: + .asciz "LABEL2" # string offset=208 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .long .Linfo_string5 + .long .Linfo_string6 + .long .Linfo_string7 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad .Lfunc_begin0 + .quad .Ltmp4 + .quad .Ltmp5 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/dwarf5-locexpr-addrx.s b/bolt/test/X86/dwarf5-locexpr-addrx.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-locexpr-addrx.s @@ -0,0 +1,461 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o +# RUN: %clang %cflags -dwarf-5 %tmain.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s + +# This test checks that we correctly encode new index into .debug_addr section +# from DW_AT_location [DW_FORM_exprloc] (DW_OP_addrx 0x#) + +# PRECHECK: version = 0x0005 +# PRECHECK: DW_TAG_variable +# PRECHECK: DW_AT_location [DW_FORM_exprloc] (DW_OP_addrx 0x0) +# PRECHECK: DW_TAG_variable +# PRECHECK: DW_AT_location [DW_FORM_exprloc] (DW_OP_addrx 0x1) +# PRECHECK-EMPTY: + +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_TAG_variable +# POSTCHECK: DW_AT_location [DW_FORM_exprloc] (DW_OP_addrx 0x3) +# POSTCHECK-EMPTY: +# POSTCHECK: DW_TAG_variable +# POSTCHECK: DW_AT_location [DW_FORM_exprloc] (DW_OP_addrx 0x4) +# POSTCHECK-EMPTY: + +# clang++ main.cpp -g -O2 +# void use(int * x, int * y) { +# *x += 4; +# *y -= 2; +# } +# +# int x = 0; +# int y = 1; +# int main(int argc, char *argv[]) { +# x = argc; +# y = argc + 3; +# use(&x, &y); +# return x + y; +# } + + .text + .file "main.cpp" + .file 0 "/testLocExprLoc" "main.cpp" md5 0xd4fd79ce0087c4cefd089752bf2182c6 + .globl _Z3usePiS_ # -- Begin function _Z3usePiS_ + .p2align 4, 0x90 + .type _Z3usePiS_,@function +_Z3usePiS_: # @_Z3usePiS_ +.Lfunc_begin0: + .loc 0 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: use:x <- $rdi + #DEBUG_VALUE: use:y <- $rsi + .loc 0 2 4 prologue_end # main.cpp:2:4 + addl $4, (%rdi) + .loc 0 3 4 # main.cpp:3:4 + addl $-2, (%rsi) + .loc 0 4 1 # main.cpp:4:1 + retq +.Ltmp0: +.Lfunc_end0: + .size _Z3usePiS_, .Lfunc_end0-_Z3usePiS_ + .cfi_endproc + # -- End function + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin1: + .loc 0 8 0 # main.cpp:8:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: main:argc <- $edi + #DEBUG_VALUE: main:argv <- $rsi + # kill: def $edi killed $edi def $rdi + .loc 0 2 4 prologue_end # main.cpp:2:4 + leal 4(%rdi), %eax + movl %eax, x(%rip) +.Ltmp1: + #DEBUG_VALUE: use:x <- undef + .loc 0 3 4 # main.cpp:3:4 + leal 1(%rdi), %eax + movl %eax, y(%rip) +.Ltmp2: + #DEBUG_VALUE: use:y <- undef + .loc 0 12 13 # main.cpp:12:13 + leal (%rdi,%rdi), %eax + addl $5, %eax + .loc 0 12 4 is_stmt 0 # main.cpp:12:4 + retq +.Ltmp3: +.Lfunc_end1: + .size main, .Lfunc_end1-main + .cfi_endproc + # -- End function + .type x,@object # @x + .bss + .globl x + .p2align 2 +x: + .long 0 # 0x0 + .size x, 4 + + .type y,@object # @y + .data + .globl y + .p2align 2 +y: + .long 1 # 0x1 + .size y, 4 + + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 37 # DW_AT_producer + .byte 37 # DW_FORM_strx1 + .byte 19 # DW_AT_language + .byte 5 # DW_FORM_data2 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 62 # DW_AT_encoding + .byte 11 # DW_FORM_data1 + .byte 11 # DW_AT_byte_size + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 4 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 6 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 110 # DW_AT_linkage_name + .byte 37 # DW_FORM_strx1 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 32 # DW_AT_inline + .byte 33 # DW_FORM_implicit_const + .byte 1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 7 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 8 # Abbreviation Code + .byte 15 # DW_TAG_pointer_type + .byte 0 # DW_CHILDREN_no + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 9 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 10 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 11 # Abbreviation Code + .byte 29 # DW_TAG_inlined_subroutine + .byte 0 # DW_CHILDREN_no + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 88 # DW_AT_call_file + .byte 11 # DW_FORM_data1 + .byte 89 # DW_AT_call_line + .byte 11 # DW_FORM_data1 + .byte 87 # DW_AT_call_column + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + .section .debug_info,"",@progbits +.Lcu_begin0: + .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit +.Ldebug_info_start0: + .short 5 # DWARF version number + .byte 1 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 1 # Abbrev [1] 0xc:0xa7 DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # DW_AT_name + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .long .Lline_table_start0 # DW_AT_stmt_list + .byte 2 # DW_AT_comp_dir + .byte 2 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .byte 2 # Abbrev [2] 0x23:0xb DW_TAG_variable + .byte 3 # DW_AT_name + .long 46 # DW_AT_type + # DW_AT_external + .byte 0 # DW_AT_decl_file + .byte 6 # DW_AT_decl_line + .byte 2 # DW_AT_location + .byte 161 + .byte 0 + .byte 3 # Abbrev [3] 0x2e:0x4 DW_TAG_base_type + .byte 4 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 2 # Abbrev [2] 0x32:0xb DW_TAG_variable + .byte 5 # DW_AT_name + .long 46 # DW_AT_type + # DW_AT_external + .byte 0 # DW_AT_decl_file + .byte 7 # DW_AT_decl_line + .byte 2 # DW_AT_location + .byte 161 + .byte 1 + .byte 4 # Abbrev [4] 0x3d:0x1b DW_TAG_subprogram + .byte 2 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .long 88 # DW_AT_abstract_origin + .byte 5 # Abbrev [5] 0x49:0x7 DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .long 93 # DW_AT_abstract_origin + .byte 5 # Abbrev [5] 0x50:0x7 DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .long 101 # DW_AT_abstract_origin + .byte 0 # End Of Children Mark + .byte 6 # Abbrev [6] 0x58:0x16 DW_TAG_subprogram + .byte 6 # DW_AT_linkage_name + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + # DW_AT_external + # DW_AT_inline + .byte 7 # Abbrev [7] 0x5d:0x8 DW_TAG_formal_parameter + .byte 3 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 110 # DW_AT_type + .byte 7 # Abbrev [7] 0x65:0x8 DW_TAG_formal_parameter + .byte 5 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 110 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 8 # Abbrev [8] 0x6e:0x5 DW_TAG_pointer_type + .long 46 # DW_AT_type + .byte 9 # Abbrev [9] 0x73:0x31 DW_TAG_subprogram + .byte 3 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 87 + # DW_AT_call_all_calls + .byte 8 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 8 # DW_AT_decl_line + .long 46 # DW_AT_type + # DW_AT_external + .byte 10 # Abbrev [10] 0x82:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .byte 9 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 8 # DW_AT_decl_line + .long 46 # DW_AT_type + .byte 10 # Abbrev [10] 0x8c:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .byte 10 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 8 # DW_AT_decl_line + .long 164 # DW_AT_type + .byte 11 # Abbrev [11] 0x96:0xd DW_TAG_inlined_subroutine + .long 88 # DW_AT_abstract_origin + .byte 3 # DW_AT_low_pc + .long .Ltmp2-.Lfunc_begin1 # DW_AT_high_pc + .byte 0 # DW_AT_call_file + .byte 11 # DW_AT_call_line + .byte 4 # DW_AT_call_column + .byte 0 # End Of Children Mark + .byte 8 # Abbrev [8] 0xa4:0x5 DW_TAG_pointer_type + .long 169 # DW_AT_type + .byte 8 # Abbrev [8] 0xa9:0x5 DW_TAG_pointer_type + .long 174 # DW_AT_type + .byte 3 # Abbrev [3] 0xae:0x4 DW_TAG_base_type + .byte 11 # DW_AT_name + .byte 6 # DW_AT_encoding + .byte 1 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_str_offsets,"",@progbits + .long 52 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=134 +.Linfo_string2: + .asciz "/testLocExprLoc" # string offset=143 +.Linfo_string3: + .asciz "x" # string offset=195 +.Linfo_string4: + .asciz "int" # string offset=197 +.Linfo_string5: + .asciz "y" # string offset=201 +.Linfo_string6: + .asciz "_Z3usePiS_" # string offset=203 +.Linfo_string7: + .asciz "use" # string offset=214 +.Linfo_string8: + .asciz "main" # string offset=218 +.Linfo_string9: + .asciz "argc" # string offset=223 +.Linfo_string10: + .asciz "argv" # string offset=228 +.Linfo_string11: + .asciz "char" # string offset=233 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .long .Linfo_string5 + .long .Linfo_string6 + .long .Linfo_string7 + .long .Linfo_string8 + .long .Linfo_string9 + .long .Linfo_string10 + .long .Linfo_string11 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad x + .quad y + .quad .Lfunc_begin0 + .quad .Lfunc_begin1 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/dwarf5-lowpc-highpc-convert.s b/bolt/test/X86/dwarf5-lowpc-highpc-convert.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-lowpc-highpc-convert.s @@ -0,0 +1,196 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o +# RUN: %clang %cflags -dwarf-5 %t1.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-addr %t.bolt > %t.txt +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt +# RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s + +# This tests checks that DW_AT_low_pc/DW_AT_high_pc is converted to DW_AT_low_pc/DW_AT_ranges. +# Checks that DW_AT_rnglists_base is inserted, and that correct address is used. + +# PRECHECK: version = 0x0005 +# PRECHECK: DW_AT_low_pc +# PRECHECK-SAME: DW_FORM_addrx +# PRECHECK-SAME: (00000000) +# PRECHECK-NEXT: DW_AT_high_pc [DW_FORM_data4] (0x0000000f) +# PRECHECK-NEXT: DW_AT_addr_base [DW_FORM_sec_offset] (0x00000008) + +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR:]] +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_AT_low_pc +# POSTCHECK-SAME: DW_FORM_addrx +# POSTCHECK-SAME: (00000001) +# POSTCHECK-SAME: address = 0x0000000000000000 +# POSTCHECK-NEXT: DW_AT_ranges +# POSTCHECK-SAME: DW_FORM_rnglistx +# POSTCHECK-SAME: (0x0) +# POSTCHECK-SAME: rangelist = 0x00000014 +# POSTCHECK-NEXT: [ +# POSTCHECK-SAME: 0x[[#ADDR]] +# POSTCHECK-SAME: 0x[[#ADDR + 15]] +# POSTCHECK-NEXT: DW_AT_addr_base [DW_FORM_sec_offset] (0x00000008) +# POSTCHECK-NEXT: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) + +# int main() { +# return 0; +# } + + .text + .file "main.cpp" + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin0: + .file 0 "." "main.cpp" md5 0xbb12fec8d002b1f0e06f7dee4604c6cc + .loc 0 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp + movl $0, -4(%rbp) +.Ltmp0: + .loc 0 2 3 prologue_end # main.cpp:2:3 + xorl %eax, %eax + popq %rbp + .cfi_def_cfa %rsp, 8 + retq +.Ltmp1: +.Lfunc_end0: + .size main, .Lfunc_end0-main + .cfi_endproc + # -- End function + .section .debug_abbrev,"",@progbits + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 37 # DW_AT_producer + .byte 37 # DW_FORM_strx1 + .byte 19 # DW_AT_language + .byte 5 # DW_FORM_data2 + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 114 # DW_AT_str_offsets_base + .byte 23 # DW_FORM_sec_offset + .byte 16 # DW_AT_stmt_list + .byte 23 # DW_FORM_sec_offset + .byte 27 # DW_AT_comp_dir + .byte 37 # DW_FORM_strx1 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 0 # DW_CHILDREN_no + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 18 # DW_AT_high_pc + .byte 6 # DW_FORM_data4 + .byte 64 # DW_AT_frame_base + .byte 24 # DW_FORM_exprloc + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 3 # Abbreviation Code + .byte 36 # DW_TAG_base_type + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 37 # DW_FORM_strx1 + .byte 62 # DW_AT_encoding + .byte 11 # DW_FORM_data1 + .byte 11 # DW_AT_byte_size + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + .section .debug_info,"",@progbits +.Lcu_begin0: + .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit +.Ldebug_info_start0: + .short 5 # DWARF version number + .byte 1 # DWARF Unit Type + .byte 8 # Address Size (in bytes) + .long .debug_abbrev # Offset Into Abbrev. Section + .byte 1 # Abbrev [1] 0xc:0x2b DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # DW_AT_name + .long .Lstr_offsets_base0 # DW_AT_str_offsets_base + .long .Lline_table_start0 # DW_AT_stmt_list + .byte 2 # DW_AT_comp_dir + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .long .Laddr_table_base0 # DW_AT_addr_base + .byte 2 # Abbrev [2] 0x23:0xf DW_TAG_subprogram + .byte 0 # DW_AT_low_pc + .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 86 + .byte 3 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 50 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0x32:0x4 DW_TAG_base_type + .byte 4 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_str_offsets,"",@progbits + .long 24 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=134 +.Linfo_string2: + .asciz "." # string offset=143 +.Linfo_string3: + .asciz "main" # string offset=180 +.Linfo_string4: + .asciz "int" # string offset=185 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad .Lfunc_begin0 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/bolt/test/X86/dwarf5-rangeoffset-to-rangeindex.s b/bolt/test/X86/dwarf5-rangeoffset-to-rangeindex.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-rangeoffset-to-rangeindex.s @@ -0,0 +1,256 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o +# RUN: %clang %cflags -dwarf-5 %t1.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-addr %t.bolt > %t.txt +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt +# RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s + +# This tests conversion for DWARF5 ranges DW_AT_ranges [DW_FORM_sec_offset] to DW_AT_ranges [DW_FORM_rnglistx] + +# PRECHECK: version = 0x0005 +# PRECHECK: DW_AT_ranges [DW_FORM_sec_offset] + +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR:]] +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR1:]] +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: (indexed (0x0) rangelist = 0x00000018 +# POSTCHECK-NEXT: [0x[[#ADDR]], 0x[[#ADDR + 11]] +# POSTCHECK-NEXT: [0x[[#ADDR1]], 0x[[#ADDR1 + 11]] + +# int foo() { +# return 3; +# } +# +# int main() { +# return foo(); +# } + + .file "main.cpp" + .text +.Ltext0: + .file 0 "/testRangeOffsetToRangeX" "main.cpp" + .section .text._Z3foov,"ax",@progbits + .globl _Z3foov + .type _Z3foov, @function +_Z3foov: +.LFB0: + .file 1 "main.cpp" + .loc 0 1 11 + .cfi_startproc + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset 6, -16 + movq %rsp, %rbp + .cfi_def_cfa_register 6 + .loc 0 2 10 + movl $3, %eax + .loc 0 3 1 + popq %rbp + .cfi_def_cfa 7, 8 + ret + .cfi_endproc +.LFE0: + .size _Z3foov, .-_Z3foov + .section .text.main,"ax",@progbits + .globl main + .type main, @function +main: +.LFB1: + .loc 0 5 12 + .cfi_startproc + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset 6, -16 + movq %rsp, %rbp + .cfi_def_cfa_register 6 + .loc 0 6 13 + call _Z3foov + .loc 0 6 14 + nop + .loc 0 7 1 + popq %rbp + .cfi_def_cfa 7, 8 + ret + .cfi_endproc +.LFE1: + .size main, .-main + .text +.Letext0: + .section .debug_info,"",@progbits +.Ldebug_info0: + .long 0x6e + .value 0x5 + .byte 0x1 + .byte 0x8 + .long .Ldebug_abbrev0 + .uleb128 0x1 + .long .LASF2 + .byte 0x21 + .long .LASF0 + .long .LASF1 + .long .LLRL0 + .quad 0 + .long .Ldebug_line0 + .uleb128 0x2 + .long .LASF3 + .byte 0x1 + .byte 0x5 + .byte 0x5 + .long 0x48 + .quad .LFB1 + .quad .LFE1-.LFB1 + .uleb128 0x1 + .byte 0x9c + .uleb128 0x3 + .byte 0x4 + .byte 0x5 + .string "int" + .uleb128 0x4 + .string "foo" + .byte 0x1 + .byte 0x1 + .byte 0x5 + .long .LASF4 + .long 0x48 + .quad .LFB0 + .quad .LFE0-.LFB0 + .uleb128 0x1 + .byte 0x9c + .byte 0 + .section .debug_abbrev,"",@progbits +.Ldebug_abbrev0: + .uleb128 0x1 + .uleb128 0x11 + .byte 0x1 + .uleb128 0x25 + .uleb128 0xe + .uleb128 0x13 + .uleb128 0xb + .uleb128 0x3 + .uleb128 0x1f + .uleb128 0x1b + .uleb128 0x1f + .uleb128 0x55 + .uleb128 0x17 + .uleb128 0x11 + .uleb128 0x1 + .uleb128 0x10 + .uleb128 0x17 + .byte 0 + .byte 0 + .uleb128 0x2 + .uleb128 0x2e + .byte 0 + .uleb128 0x3f + .uleb128 0x19 + .uleb128 0x3 + .uleb128 0xe + .uleb128 0x3a + .uleb128 0xb + .uleb128 0x3b + .uleb128 0xb + .uleb128 0x39 + .uleb128 0xb + .uleb128 0x49 + .uleb128 0x13 + .uleb128 0x11 + .uleb128 0x1 + .uleb128 0x12 + .uleb128 0x7 + .uleb128 0x40 + .uleb128 0x18 + .uleb128 0x7c + .uleb128 0x19 + .byte 0 + .byte 0 + .uleb128 0x3 + .uleb128 0x24 + .byte 0 + .uleb128 0xb + .uleb128 0xb + .uleb128 0x3e + .uleb128 0xb + .uleb128 0x3 + .uleb128 0x8 + .byte 0 + .byte 0 + .uleb128 0x4 + .uleb128 0x2e + .byte 0 + .uleb128 0x3f + .uleb128 0x19 + .uleb128 0x3 + .uleb128 0x8 + .uleb128 0x3a + .uleb128 0xb + .uleb128 0x3b + .uleb128 0xb + .uleb128 0x39 + .uleb128 0xb + .uleb128 0x6e + .uleb128 0xe + .uleb128 0x49 + .uleb128 0x13 + .uleb128 0x11 + .uleb128 0x1 + .uleb128 0x12 + .uleb128 0x7 + .uleb128 0x40 + .uleb128 0x18 + .uleb128 0x7a + .uleb128 0x19 + .byte 0 + .byte 0 + .byte 0 + .section .debug_aranges,"",@progbits + .long 0x3c + .value 0x2 + .long .Ldebug_info0 + .byte 0x8 + .byte 0 + .value 0 + .value 0 + .quad .LFB0 + .quad .LFE0-.LFB0 + .quad .LFB1 + .quad .LFE1-.LFB1 + .quad 0 + .quad 0 + .section .debug_rnglists,"",@progbits +.Ldebug_ranges0: + .long .Ldebug_ranges3-.Ldebug_ranges2 +.Ldebug_ranges2: + .value 0x5 + .byte 0x8 + .byte 0 + .long 0 +.LLRL0: + .byte 0x7 + .quad .LFB0 + .uleb128 .LFE0-.LFB0 + .byte 0x7 + .quad .LFB1 + .uleb128 .LFE1-.LFB1 + .byte 0 +.Ldebug_ranges3: + .section .debug_line,"",@progbits +.Ldebug_line0: + .section .debug_str,"MS",@progbits,1 +.LASF4: + .string "_Z3foov" +.LASF3: + .string "main" +.LASF2: + .string "GNU C++17 11.x" + .section .debug_line_str,"MS",@progbits,1 +.LASF0: + .string "main.cpp" +.LASF1: + .string "/testRangeOffsetToRangeX" + .ident "GCC: (GNU) 11.x" + .section .note.GNU-stack,"",@progbits diff --git a/bolt/test/X86/dwarf5-two-loclists.test b/bolt/test/X86/dwarf5-two-loclists.test new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-two-loclists.test @@ -0,0 +1,78 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5_main.s -o %tmain.o +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5_helper.s -o %thelper.o +# RUN: %clang %cflags -dwarf-5 %tmain.o %thelper.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-addr %t.bolt > %t.txt +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt +# RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s + +# This tests checks that re-writing of .debug_loclists is handled correctly for two CUs, +# and two loclist entries. + +# PRECHECK: version = 0x0005 +# PRECHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x0000000c) +# PRECHECK-EMPTY: +# PRECHECK: DW_TAG_variable +# PRECHECK: DW_AT_location [DW_FORM_loclistx] +# PRECHECK-SAME: indexed (0x0) +# PRECHECK-SAME: loclist = 0x00000014 +# PRECHECK: DW_AT_location [DW_FORM_loclistx] +# PRECHECK-SAME: indexed (0x1) +# PRECHECK-SAME: loclist = 0x00000028 +# PRECHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x00000043) +# PRECHECK-EMPTY: +# PRECHECK: DW_TAG_variable +# PRECHECK: DW_TAG_variable +# PRECHECK: DW_AT_location [DW_FORM_loclistx] +# PRECHECK-SAME: indexed (0x0) +# PRECHECK-SAME: loclist = 0x00000047 + +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR:]] +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR2:]] +# For second CU. +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR3:]] +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR4:]] + +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x0000000c) +# POSTCHECK: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) +# POSTCHECK-EMPTY +# POSTCHECK: DW_TAG_variable +# POSTCHECK: DW_AT_location [DW_FORM_loclistx] +# POSTCHECK-SAME: indexed (0x0) +# POSTCHECK-SAME: loclist = 0x00000014 +# POSTCHECK-NEXT: [0x[[#ADDR]] +# POSTCHECK-SAME: 0x[[#ADDR + 6]] +# POSTCHECK-NEXT: [0x[[#ADDR2]] +# POSTCHECK-SAME: 0x[[#ADDR2 + 6]] +# POSTCHECK: DW_TAG_variable +# POSTCHECK: DW_AT_location [DW_FORM_loclistx] +# POSTCHECK-SAME: indexed (0x1) +# POSTCHECK-SAME: loclist = 0x00000028 +# POSTCHECK-NEXT: [0x[[#ADDR2]] +# POSTCHECK-SAME: 0x[[#ADDR2 + 2]] + +# Checking second CU +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x00000043) +# POSTCHECK: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x00000033) +# POSTCHECK-EMPTY: +# POSTCHECK: DW_TAG_variable +# POSTCHECK: DW_TAG_variable +# POSTCHECK: DW_AT_location [DW_FORM_loclistx] +# POSTCHECK-SAME: indexed (0x0) +# POSTCHECK-SAME: loclist = 0x00000047 +# POSTCHECK-NEXT: [0x[[#ADDR3]] +# POSTCHECK-SAME: 0x[[#ADDR3 + 3]] +# POSTCHECK-NEXT: [0x[[#ADDR4]] +# POSTCHECK-SAME: 0x[[#ADDR4 + 1]] diff --git a/bolt/test/X86/dwarf5-two-rnglists.test b/bolt/test/X86/dwarf5-two-rnglists.test new file mode 100644 --- /dev/null +++ b/bolt/test/X86/dwarf5-two-rnglists.test @@ -0,0 +1,110 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5_main.s -o %tmain.o +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5_helper.s -o %thelper.o +# RUN: %clang %cflags -dwarf-5 %tmain.o %thelper.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-addr %t.bolt > %t.txt +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt +# RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s + +# This tests checks that re-writing of .debug_rnglists is handled correctly for two CUs, +# and DW_AT_low_pc/DW_AT_high_pc conversion is handled correctly. + +# PRECHECK: version = 0x0005 +# PRECHECK: DW_AT_low_pc [DW_FORM_addrx] +# PRECHECK: DW_AT_high_pc [DW_FORM_data4] +# PRECHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x0000000c) +# PRECHECK-EMPTY: +# PRECHECK: version = 0x0005 +# PRECHECK: DW_AT_low_pc [DW_FORM_addrx] +# PRECHECK: DW_AT_high_pc [DW_FORM_data4] +# PRECHECK: DW_AT_loclists_base [DW_FORM_sec_offset] (0x00000043) + +# PRECHECK: DW_TAG_inlined_subroutine +# PRECHECK-NEXT: DW_AT_abstract_origin +# PRECHECK-NEXT: DW_AT_low_pc [DW_FORM_addrx] +# PRECHECK-NEXT: DW_AT_high_pc [DW_FORM_data4] (0x00000003) + +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR:]] +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR1:]] +# POSTCHECK-NEXT: 0x +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR2:]] +# For second CU. +# POSTCHECK: Addrs: [ +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR3:]] +# POSTCHECK-NEXT: 0x[[#%.16x,ADDR4:]] + +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: (indexed (0x0) +# POSTCHECK-SAME: rangelist = 0x00000018 +# POSTCHECK-NEXT: [ +# POSTCHECK-SAME: 0x[[#ADDR]] +# POSTCHECK-SAME: 0x[[#ADDR + 7]] +# POSTCHECK-NEXT: [ +# POSTCHECK-SAME: 0x[[#ADDR1]] +# POSTCHECK-SAME: 0x[[#ADDR1 + 12]] +# POSTCHECK-NEXT: DW_AT_addr_base [DW_FORM_sec_offset] (0x00000008) +# POSTCHECK-NEXT: DW_AT_loclists_base [DW_FORM_sec_offset] (0x0000000c) +# POSTCHECK-NEXT: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) +# POSTCHECK-EMPTY +# POSTCHECK: DW_TAG_subprogram +# POSTCHECK-NEXT: DW_AT_low_pc [DW_FORM_addrx] +# POSTCHECK-SAME: indexed (00000002) +# POSTCHECK-SAME: address = 0x0000000000000000 +# POSTCHECK-NEXT: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: indexed (0x1) +# POSTCHECK-SAME: rangelist = 0x0000001f +# POSTCHECK-NEXT: [0x[[#ADDR]], 0x[[#ADDR + 7]]) + +# POSTCHECK: DW_TAG_subprogram +# POSTCHECK-NEXT: DW_AT_low_pc [DW_FORM_addrx] +# POSTCHECK-SAME: indexed (00000002) +# POSTCHECK-SAME: address = 0x0000000000000000 +# POSTCHECK-NEXT: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: indexed (0x2) +# POSTCHECK-SAME: rangelist = 0x00000023 +# POSTCHECK-NEXT: [0x[[#ADDR1]], 0x[[#ADDR1 + 12]]) + +# Checking second CU +# POSTCHECK: version = 0x0005 +# POSTCHECK: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: (indexed (0x0) +# POSTCHECK-SAME: rangelist = 0x00000043 +# POSTCHECK-NEXT: [0x[[#ADDR3]], 0x[[#ADDR3 + 4]]) +# POSTCHECK-NEXT: [0x[[#ADDR4]], 0x[[#ADDR4 + 4]]) +# POSTCHECK-NEXT: DW_AT_addr_base [DW_FORM_sec_offset] (0x00000030) +# POSTCHECK-NEXT: DW_AT_loclists_base [DW_FORM_sec_offset] (0x00000043) +# POSTCHECK-NEXT: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x00000033) +# POSTCHECK-EMPTY + +# POSTCHECK: DW_TAG_subprogram +# POSTCHECK-NEXT: DW_AT_low_pc [DW_FORM_addrx] +# POSTCHECK-SAME: indexed (00000002) +# POSTCHECK-SAME: address = 0x0000000000000000 +# POSTCHECK-NEXT: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: indexed (0x1) +# POSTCHECK-SAME: rangelist = 0x0000004a +# POSTCHECK-NEXT: [0x[[#ADDR3]], 0x[[#ADDR3 + 4]]) +# POSTCHECK: DW_TAG_subprogram +# POSTCHECK: DW_TAG_subprogram +# POSTCHECK-NEXT: DW_AT_low_pc [DW_FORM_addrx] +# POSTCHECK-SAME: indexed (00000002) +# POSTCHECK-SAME: address = 0x0000000000000000 +# POSTCHECK-NEXT: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: indexed (0x2) +# POSTCHECK-SAME: rangelist = 0x0000004e +# POSTCHECK-NEXT: [0x[[#ADDR4]], 0x[[#ADDR4 + 4]]) + +# POSTCHECK: DW_TAG_inlined_subroutine +# POSTCHECK-NEXT: DW_AT_abstract_origin +# POSTCHECK-NEXT: DW_AT_low_pc [DW_FORM_addrx] +# POSTCHECK-SAME: indexed (00000002) +# POSTCHECK-SAME: address = 0x0000000000000000 +# POSTCHECK-NEXT: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK-SAME: indexed (0x3) +# POSTCHECK-SAME: rangelist = 0x00000052 +# POSTCHECK-NEXT: [0x[[#ADDR4]], 0x[[#ADDR4 + 3]]) diff --git a/bolt/test/X86/insert-addr-rnglists_base.s b/bolt/test/X86/insert-addr-rnglists_base.s new file mode 100644 --- /dev/null +++ b/bolt/test/X86/insert-addr-rnglists_base.s @@ -0,0 +1,158 @@ +# REQUIRES: system-linux + +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o +# RUN: %clang %cflags -dwarf-5 %t1.o -o %t.exe -Wl,-q +# RUN: llvm-bolt %t.exe -o %t.bolt -update-debug-sections +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s +# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s + +# This test checks we correctly insert DW_AT_addr_base, when converting DW_AT_low_pc into DW_AT_ranges. +# PRECHECK-NOT: DW_AT_addr_base + +# POSTCHECK: DW_AT_ranges [DW_FORM_rnglistx] +# POSTCHECK: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) +# POSTCHECK-NEXT: DW_AT_addr_base [DW_FORM_sec_offset] (0x00000008) + +# int main() { +# return 0; +# } + + + .file "main.cpp" + .text +.Ltext0: + .globl main + .type main, @function +main: +.LFB0: + .file 1 "main.cpp" + .loc 1 1 12 + .cfi_startproc + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset 6, -16 + movq %rsp, %rbp + .cfi_def_cfa_register 6 + .loc 1 2 10 + movl $0, %eax + .loc 1 3 1 + popq %rbp + .cfi_def_cfa 7, 8 + ret + .cfi_endproc +.LFE0: + .size main, .-main +.Letext0: + .section .debug_info,"",@progbits +.Ldebug_info0: + .long 0x50 + .value 0x5 + .byte 0x1 + .byte 0x8 + .long .Ldebug_abbrev0 + .uleb128 0x1 + .long .LASF0 + .byte 0x21 + .long .LASF1 + .long .LASF2 + .quad .Ltext0 + .quad .Letext0-.Ltext0 + .long .Ldebug_line0 + .uleb128 0x2 + .long .LASF3 + .byte 0x1 + .byte 0x1 + .byte 0x5 + .long 0x4c + .quad .LFB0 + .quad .LFE0-.LFB0 + .uleb128 0x1 + .byte 0x9c + .uleb128 0x3 + .byte 0x4 + .byte 0x5 + .string "int" + .byte 0 + .section .debug_abbrev,"",@progbits +.Ldebug_abbrev0: + .uleb128 0x1 + .uleb128 0x11 + .byte 0x1 + .uleb128 0x25 + .uleb128 0xe + .uleb128 0x13 + .uleb128 0xb + .uleb128 0x3 + .uleb128 0xe + .uleb128 0x1b + .uleb128 0xe + .uleb128 0x11 + .uleb128 0x1 + .uleb128 0x12 + .uleb128 0x7 + .uleb128 0x10 + .uleb128 0x17 + .byte 0 + .byte 0 + .uleb128 0x2 + .uleb128 0x2e + .byte 0 + .uleb128 0x3f + .uleb128 0x19 + .uleb128 0x3 + .uleb128 0xe + .uleb128 0x3a + .uleb128 0xb + .uleb128 0x3b + .uleb128 0xb + .uleb128 0x39 + .uleb128 0xb + .uleb128 0x49 + .uleb128 0x13 + .uleb128 0x11 + .uleb128 0x1 + .uleb128 0x12 + .uleb128 0x7 + .uleb128 0x40 + .uleb128 0x18 + .uleb128 0x7a + .uleb128 0x19 + .byte 0 + .byte 0 + .uleb128 0x3 + .uleb128 0x24 + .byte 0 + .uleb128 0xb + .uleb128 0xb + .uleb128 0x3e + .uleb128 0xb + .uleb128 0x3 + .uleb128 0x8 + .byte 0 + .byte 0 + .byte 0 + .section .debug_aranges,"",@progbits + .long 0x2c + .value 0x2 + .long .Ldebug_info0 + .byte 0x8 + .byte 0 + .value 0 + .value 0 + .quad .Ltext0 + .quad .Letext0-.Ltext0 + .quad 0 + .quad 0 + .section .debug_line,"",@progbits +.Ldebug_line0: + .section .debug_str,"MS",@progbits,1 +.LASF0: + .string "GNU C++14 8.5.0 20210514 (Red Hat 8.5.0-3) -mtune=generic -march=x86-64 -g2 -gdwarf-5" +.LASF1: + .string "main.cpp" +.LASF3: + .string "main" +.LASF2: + .string "." + .ident "GCC: (GNU) 8.5.0 20210514 (Red Hat 8.5.0-3)" + .section .note.GNU-stack,"",@progbits