//===-- MachODump.cpp - Object file dumping utility for llvm --------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This file implements the MachO-specific dumper for llvm-readobj. // //===----------------------------------------------------------------------===// #include "llvm-readobj.h" #include "Error.h" #include "ObjDumper.h" #include "StackMapPrinter.h" #include "StreamWriter.h" #include "llvm/ADT/SmallString.h" #include "llvm/ADT/StringExtras.h" #include "llvm/Object/MachO.h" #include "llvm/Support/Casting.h" using namespace llvm; using namespace object; namespace { class MachODumper : public ObjDumper { public: MachODumper(const MachOObjectFile *Obj, StreamWriter& Writer) : ObjDumper(Writer) , Obj(Obj) { } void printFileHeaders() override; void printSections() override; void printRelocations() override; void printSymbols() override; void printDynamicSymbols() override; void printUnwindInfo() override; void printStackMap() const override; private: template void printFileHeaders(const MachHeader &Header); void printSymbol(const SymbolRef &Symbol); void printRelocation(const RelocationRef &Reloc); void printRelocation(const MachOObjectFile *Obj, const RelocationRef &Reloc); void printSections(const MachOObjectFile *Obj); const MachOObjectFile *Obj; }; } // namespace namespace llvm { std::error_code createMachODumper(const object::ObjectFile *Obj, StreamWriter &Writer, std::unique_ptr &Result) { const MachOObjectFile *MachOObj = dyn_cast(Obj); if (!MachOObj) return readobj_error::unsupported_obj_file_format; Result.reset(new MachODumper(MachOObj, Writer)); return readobj_error::success; } } // namespace llvm static const EnumEntry MachOMagics[] = { { "Magic", MachO::MH_MAGIC }, { "Cigam", MachO::MH_CIGAM }, { "Magic64", MachO::MH_MAGIC_64 }, { "Cigam64", MachO::MH_CIGAM_64 }, { "FatMagic", MachO::FAT_MAGIC }, { "FatCigam", MachO::FAT_CIGAM }, }; static const EnumEntry MachOHeaderFileTypes[] = { { "Relocatable", MachO::MH_OBJECT }, { "Executable", MachO::MH_EXECUTE }, { "FixedVMLibrary", MachO::MH_FVMLIB }, { "Core", MachO::MH_CORE }, { "PreloadedExecutable", MachO::MH_PRELOAD }, { "DynamicLibrary", MachO::MH_DYLIB }, { "DynamicLinker", MachO::MH_DYLINKER }, { "Bundle", MachO::MH_BUNDLE }, { "DynamicLibraryStub", MachO::MH_DYLIB_STUB }, { "DWARFSymbol", MachO::MH_DSYM }, { "KextBundle", MachO::MH_KEXT_BUNDLE }, }; static const EnumEntry MachOHeaderCpuTypes[] = { { "Any" , static_cast(MachO::CPU_TYPE_ANY) }, { "X86" , MachO::CPU_TYPE_X86 }, { "X86-64" , MachO::CPU_TYPE_X86_64 }, { "Mc98000" , MachO::CPU_TYPE_MC98000 }, { "Arm" , MachO::CPU_TYPE_ARM }, { "Arm64" , MachO::CPU_TYPE_ARM64 }, { "Sparc" , MachO::CPU_TYPE_SPARC }, { "PowerPC" , MachO::CPU_TYPE_POWERPC }, { "PowerPC64" , MachO::CPU_TYPE_POWERPC64 }, }; static const EnumEntry MachOHeaderCpuSubtypesX86[] = { LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_I386_ALL), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_386), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_486), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_486SX), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_586), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTPRO), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTII_M3), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTII_M5), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_CELERON), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_CELERON_MOBILE), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3_M), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3_XEON), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_M), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_4), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_4_M), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ITANIUM), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ITANIUM_2), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_XEON), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_XEON_MP), }; static const EnumEntry MachOHeaderCpuSubtypesX64[] = { LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_64_ALL), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_ARCH1), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_64_H), }; static const EnumEntry MachOHeaderCpuSubtypesARM[] = { LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_ALL), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V4T), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V6), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V5), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V5TEJ), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_XSCALE), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7S), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7K), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V6M), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7M), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7EM), }; static const EnumEntry MachOHeaderCpuSubtypesARM64[] = { LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM64_ALL), }; static const EnumEntry MachOHeaderCpuSubtypesSPARC[] = { LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_SPARC_ALL), }; static const EnumEntry MachOHeaderCpuSubtypesPPC[] = { LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_ALL), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_601), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_602), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603e), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603ev), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_604), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_604e), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_620), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_750), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_7400), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_7450), LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_970), }; static const EnumEntry MachOHeaderFlags[] = { LLVM_READOBJ_ENUM_ENT(MachO, MH_NOUNDEFS), LLVM_READOBJ_ENUM_ENT(MachO, MH_INCRLINK), LLVM_READOBJ_ENUM_ENT(MachO, MH_DYLDLINK), LLVM_READOBJ_ENUM_ENT(MachO, MH_BINDATLOAD), LLVM_READOBJ_ENUM_ENT(MachO, MH_PREBOUND), LLVM_READOBJ_ENUM_ENT(MachO, MH_SPLIT_SEGS), LLVM_READOBJ_ENUM_ENT(MachO, MH_LAZY_INIT), LLVM_READOBJ_ENUM_ENT(MachO, MH_TWOLEVEL), LLVM_READOBJ_ENUM_ENT(MachO, MH_FORCE_FLAT), LLVM_READOBJ_ENUM_ENT(MachO, MH_NOMULTIDEFS), LLVM_READOBJ_ENUM_ENT(MachO, MH_NOFIXPREBINDING), LLVM_READOBJ_ENUM_ENT(MachO, MH_PREBINDABLE), LLVM_READOBJ_ENUM_ENT(MachO, MH_ALLMODSBOUND), LLVM_READOBJ_ENUM_ENT(MachO, MH_SUBSECTIONS_VIA_SYMBOLS), LLVM_READOBJ_ENUM_ENT(MachO, MH_CANONICAL), LLVM_READOBJ_ENUM_ENT(MachO, MH_WEAK_DEFINES), LLVM_READOBJ_ENUM_ENT(MachO, MH_BINDS_TO_WEAK), LLVM_READOBJ_ENUM_ENT(MachO, MH_ALLOW_STACK_EXECUTION), LLVM_READOBJ_ENUM_ENT(MachO, MH_ROOT_SAFE), LLVM_READOBJ_ENUM_ENT(MachO, MH_SETUID_SAFE), LLVM_READOBJ_ENUM_ENT(MachO, MH_NO_REEXPORTED_DYLIBS), LLVM_READOBJ_ENUM_ENT(MachO, MH_PIE), LLVM_READOBJ_ENUM_ENT(MachO, MH_DEAD_STRIPPABLE_DYLIB), LLVM_READOBJ_ENUM_ENT(MachO, MH_HAS_TLV_DESCRIPTORS), LLVM_READOBJ_ENUM_ENT(MachO, MH_NO_HEAP_EXECUTION), LLVM_READOBJ_ENUM_ENT(MachO, MH_APP_EXTENSION_SAFE), }; static const EnumEntry MachOSectionAttributes[] = { { "LocReloc" , 1 << 0 /*S_ATTR_LOC_RELOC */ }, { "ExtReloc" , 1 << 1 /*S_ATTR_EXT_RELOC */ }, { "SomeInstructions" , 1 << 2 /*S_ATTR_SOME_INSTRUCTIONS */ }, { "Debug" , 1 << 17 /*S_ATTR_DEBUG */ }, { "SelfModifyingCode", 1 << 18 /*S_ATTR_SELF_MODIFYING_CODE*/ }, { "LiveSupport" , 1 << 19 /*S_ATTR_LIVE_SUPPORT */ }, { "NoDeadStrip" , 1 << 20 /*S_ATTR_NO_DEAD_STRIP */ }, { "StripStaticSyms" , 1 << 21 /*S_ATTR_STRIP_STATIC_SYMS */ }, { "NoTOC" , 1 << 22 /*S_ATTR_NO_TOC */ }, { "PureInstructions" , 1 << 23 /*S_ATTR_PURE_INSTRUCTIONS */ }, }; static const EnumEntry MachOSymbolRefTypes[] = { { "UndefinedNonLazy", 0 }, { "ReferenceFlagUndefinedLazy", 1 }, { "ReferenceFlagDefined", 2 }, { "ReferenceFlagPrivateDefined", 3 }, { "ReferenceFlagPrivateUndefinedNonLazy", 4 }, { "ReferenceFlagPrivateUndefinedLazy", 5 } }; static const EnumEntry MachOSymbolFlags[] = { { "ReferencedDynamically", 0x10 }, { "NoDeadStrip", 0x20 }, { "WeakRef", 0x40 }, { "WeakDef", 0x80 } }; static const EnumEntry MachOSymbolTypes[] = { { "Undef", 0x0 }, { "Abs", 0x2 }, { "Indirect", 0xA }, { "PreboundUndef", 0xC }, { "Section", 0xE } }; namespace { struct MachOSection { ArrayRef Name; ArrayRef SegmentName; uint64_t Address; uint64_t Size; uint32_t Offset; uint32_t Alignment; uint32_t RelocationTableOffset; uint32_t NumRelocationTableEntries; uint32_t Flags; uint32_t Reserved1; uint32_t Reserved2; }; struct MachOSymbol { uint32_t StringIndex; uint8_t Type; uint8_t SectionIndex; uint16_t Flags; uint64_t Value; }; } static void getSection(const MachOObjectFile *Obj, DataRefImpl Sec, MachOSection &Section) { if (!Obj->is64Bit()) { MachO::section Sect = Obj->getSection(Sec); Section.Address = Sect.addr; Section.Size = Sect.size; Section.Offset = Sect.offset; Section.Alignment = Sect.align; Section.RelocationTableOffset = Sect.reloff; Section.NumRelocationTableEntries = Sect.nreloc; Section.Flags = Sect.flags; Section.Reserved1 = Sect.reserved1; Section.Reserved2 = Sect.reserved2; return; } MachO::section_64 Sect = Obj->getSection64(Sec); Section.Address = Sect.addr; Section.Size = Sect.size; Section.Offset = Sect.offset; Section.Alignment = Sect.align; Section.RelocationTableOffset = Sect.reloff; Section.NumRelocationTableEntries = Sect.nreloc; Section.Flags = Sect.flags; Section.Reserved1 = Sect.reserved1; Section.Reserved2 = Sect.reserved2; } static void getSymbol(const MachOObjectFile *Obj, DataRefImpl DRI, MachOSymbol &Symbol) { if (!Obj->is64Bit()) { MachO::nlist Entry = Obj->getSymbolTableEntry(DRI); Symbol.StringIndex = Entry.n_strx; Symbol.Type = Entry.n_type; Symbol.SectionIndex = Entry.n_sect; Symbol.Flags = Entry.n_desc; Symbol.Value = Entry.n_value; return; } MachO::nlist_64 Entry = Obj->getSymbol64TableEntry(DRI); Symbol.StringIndex = Entry.n_strx; Symbol.Type = Entry.n_type; Symbol.SectionIndex = Entry.n_sect; Symbol.Flags = Entry.n_desc; Symbol.Value = Entry.n_value; } void MachODumper::printFileHeaders() { DictScope H(W, "MachHeader"); if (!Obj->is64Bit()) { printFileHeaders(Obj->getHeader()); } else { printFileHeaders(Obj->getHeader64()); W.printHex("Reserved", Obj->getHeader64().reserved); } } template void MachODumper::printFileHeaders(const MachHeader &Header) { W.printEnum("Magic", Header.magic, makeArrayRef(MachOMagics)); W.printEnum("CpuType", Header.cputype, makeArrayRef(MachOHeaderCpuTypes)); uint32_t subtype = Header.cpusubtype & ~MachO::CPU_SUBTYPE_MASK; switch (Header.cputype) { case MachO::CPU_TYPE_X86: W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesX86)); break; case MachO::CPU_TYPE_X86_64: W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesX64)); break; case MachO::CPU_TYPE_ARM: W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesARM)); break; case MachO::CPU_TYPE_POWERPC: W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesPPC)); break; case MachO::CPU_TYPE_SPARC: W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesSPARC)); break; case MachO::CPU_TYPE_ARM64: W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesARM64)); break; case MachO::CPU_TYPE_POWERPC64: default: W.printHex("CpuSubtype", subtype); } W.printEnum("FileType", Header.filetype, makeArrayRef(MachOHeaderFileTypes)); W.printNumber("NumOfLoadCommands", Header.ncmds); W.printNumber("SizeOfLoadCommands", Header.sizeofcmds); W.printFlags("Flags", Header.flags, makeArrayRef(MachOHeaderFlags)); } void MachODumper::printSections() { return printSections(Obj); } void MachODumper::printSections(const MachOObjectFile *Obj) { ListScope Group(W, "Sections"); int SectionIndex = -1; for (const SectionRef &Section : Obj->sections()) { ++SectionIndex; MachOSection MOSection; getSection(Obj, Section.getRawDataRefImpl(), MOSection); DataRefImpl DR = Section.getRawDataRefImpl(); StringRef Name; if (error(Section.getName(Name))) Name = ""; ArrayRef RawName = Obj->getSectionRawName(DR); StringRef SegmentName = Obj->getSectionFinalSegmentName(DR); ArrayRef RawSegmentName = Obj->getSectionRawFinalSegmentName(DR); DictScope SectionD(W, "Section"); W.printNumber("Index", SectionIndex); W.printBinary("Name", Name, RawName); W.printBinary("Segment", SegmentName, RawSegmentName); W.printHex("Address", MOSection.Address); W.printHex("Size", MOSection.Size); W.printNumber("Offset", MOSection.Offset); W.printNumber("Alignment", MOSection.Alignment); W.printHex("RelocationOffset", MOSection.RelocationTableOffset); W.printNumber("RelocationCount", MOSection.NumRelocationTableEntries); W.printEnum("Type", MOSection.Flags & 0xFF, makeArrayRef(MachOSectionAttributes)); W.printFlags("Attributes", MOSection.Flags >> 8, makeArrayRef(MachOSectionAttributes)); W.printHex("Reserved1", MOSection.Reserved1); W.printHex("Reserved2", MOSection.Reserved2); if (opts::SectionRelocations) { ListScope D(W, "Relocations"); for (const RelocationRef &Reloc : Section.relocations()) printRelocation(Reloc); } if (opts::SectionSymbols) { ListScope D(W, "Symbols"); for (const SymbolRef &Symbol : Obj->symbols()) { if (!Section.containsSymbol(Symbol)) continue; printSymbol(Symbol); } } if (opts::SectionData) { bool IsBSS = Section.isBSS(); if (!IsBSS) { StringRef Data; if (error(Section.getContents(Data))) break; W.printBinaryBlock("SectionData", Data); } } } } void MachODumper::printRelocations() { ListScope D(W, "Relocations"); std::error_code EC; for (const SectionRef &Section : Obj->sections()) { StringRef Name; if (error(Section.getName(Name))) continue; bool PrintedGroup = false; for (const RelocationRef &Reloc : Section.relocations()) { if (!PrintedGroup) { W.startLine() << "Section " << Name << " {\n"; W.indent(); PrintedGroup = true; } printRelocation(Reloc); } if (PrintedGroup) { W.unindent(); W.startLine() << "}\n"; } } } void MachODumper::printRelocation(const RelocationRef &Reloc) { return printRelocation(Obj, Reloc); } void MachODumper::printRelocation(const MachOObjectFile *Obj, const RelocationRef &Reloc) { uint64_t Offset = Reloc.getOffset(); SmallString<32> RelocName; Reloc.getTypeName(RelocName); DataRefImpl DR = Reloc.getRawDataRefImpl(); MachO::any_relocation_info RE = Obj->getRelocation(DR); bool IsScattered = Obj->isRelocationScattered(RE); bool IsExtern = !IsScattered && Obj->getPlainRelocationExternal(RE); StringRef TargetName; if (IsExtern) { symbol_iterator Symbol = Reloc.getSymbol(); if (Symbol != Obj->symbol_end()) { ErrorOr TargetNameOrErr = Symbol->getName(); if (error(TargetNameOrErr.getError())) return; TargetName = *TargetNameOrErr; } } else if (!IsScattered) { section_iterator SecI = Obj->getRelocationSection(DR); if (SecI != Obj->section_end()) { if (error(SecI->getName(TargetName))) return; } } if (TargetName.empty()) TargetName = "-"; if (opts::ExpandRelocs) { DictScope Group(W, "Relocation"); W.printHex("Offset", Offset); W.printNumber("PCRel", Obj->getAnyRelocationPCRel(RE)); W.printNumber("Length", Obj->getAnyRelocationLength(RE)); W.printNumber("Type", RelocName, Obj->getAnyRelocationType(RE)); if (IsScattered) { W.printHex("Value", Obj->getScatteredRelocationValue(RE)); } else { const char *Kind = IsExtern ? "Symbol" : "Section"; W.printNumber(Kind, TargetName, Obj->getPlainRelocationSymbolNum(RE)); } } else { SmallString<32> SymbolNameOrOffset("0x"); if (IsScattered) { // Scattered relocations don't really have an associated symbol for some // reason, even if one exists in the symtab at the correct address. SymbolNameOrOffset += utohexstr(Obj->getScatteredRelocationValue(RE)); } else { SymbolNameOrOffset = TargetName; } raw_ostream& OS = W.startLine(); OS << W.hex(Offset) << " " << Obj->getAnyRelocationPCRel(RE) << " " << Obj->getAnyRelocationLength(RE); if (IsScattered) OS << " n/a"; else OS << " " << Obj->getPlainRelocationExternal(RE); OS << " " << RelocName << " " << IsScattered << " " << SymbolNameOrOffset << "\n"; } } void MachODumper::printSymbols() { ListScope Group(W, "Symbols"); for (const SymbolRef &Symbol : Obj->symbols()) { printSymbol(Symbol); } } void MachODumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); } void MachODumper::printSymbol(const SymbolRef &Symbol) { StringRef SymbolName; if (ErrorOr SymbolNameOrErr = Symbol.getName()) SymbolName = *SymbolNameOrErr; MachOSymbol MOSymbol; getSymbol(Obj, Symbol.getRawDataRefImpl(), MOSymbol); StringRef SectionName = ""; section_iterator SecI(Obj->section_begin()); if (!error(Symbol.getSection(SecI)) && SecI != Obj->section_end()) error(SecI->getName(SectionName)); DictScope D(W, "Symbol"); W.printNumber("Name", SymbolName, MOSymbol.StringIndex); if (MOSymbol.Type & MachO::N_STAB) { W.printHex("Type", "SymDebugTable", MOSymbol.Type); } else { if (MOSymbol.Type & MachO::N_PEXT) W.startLine() << "PrivateExtern\n"; if (MOSymbol.Type & MachO::N_EXT) W.startLine() << "Extern\n"; W.printEnum("Type", uint8_t(MOSymbol.Type & MachO::N_TYPE), makeArrayRef(MachOSymbolTypes)); } W.printHex("Section", SectionName, MOSymbol.SectionIndex); W.printEnum("RefType", static_cast(MOSymbol.Flags & 0xF), makeArrayRef(MachOSymbolRefTypes)); W.printFlags("Flags", static_cast(MOSymbol.Flags & ~0xF), makeArrayRef(MachOSymbolFlags)); W.printHex("Value", MOSymbol.Value); } void MachODumper::printUnwindInfo() { W.startLine() << "UnwindInfo not implemented.\n"; } void MachODumper::printStackMap() const { object::SectionRef StackMapSection; for (auto Sec : Obj->sections()) { StringRef Name; Sec.getName(Name); if (Name == "__llvm_stackmaps") { StackMapSection = Sec; break; } } if (StackMapSection == object::SectionRef()) return; StringRef StackMapContents; StackMapSection.getContents(StackMapContents); ArrayRef StackMapContentsArray( reinterpret_cast(StackMapContents.data()), StackMapContents.size()); if (Obj->isLittleEndian()) prettyPrintStackMap( llvm::outs(), StackMapV1Parser(StackMapContentsArray)); else prettyPrintStackMap(llvm::outs(), StackMapV1Parser(StackMapContentsArray)); }