diff options
author | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
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committer | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
commit | 6ffe9e53658409f212834330e13564e4952558f6 (patch) | |
tree | 85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/tools/llvm-readobj/MachODumper.cpp | |
parent | 726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff) | |
download | ydb-6ffe9e53658409f212834330e13564e4952558f6.tar.gz |
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm14/tools/llvm-readobj/MachODumper.cpp')
-rw-r--r-- | contrib/libs/llvm14/tools/llvm-readobj/MachODumper.cpp | 938 |
1 files changed, 938 insertions, 0 deletions
diff --git a/contrib/libs/llvm14/tools/llvm-readobj/MachODumper.cpp b/contrib/libs/llvm14/tools/llvm-readobj/MachODumper.cpp new file mode 100644 index 0000000000..599b035591 --- /dev/null +++ b/contrib/libs/llvm14/tools/llvm-readobj/MachODumper.cpp @@ -0,0 +1,938 @@ +//===- MachODumper.cpp - Object file dumping utility for llvm -------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file implements the MachO-specific dumper for llvm-readobj. +// +//===----------------------------------------------------------------------===// + +#include "ObjDumper.h" +#include "StackMapPrinter.h" +#include "llvm-readobj.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/Object/MachO.h" +#include "llvm/Support/BinaryStreamReader.h" +#include "llvm/Support/Casting.h" +#include "llvm/Support/ScopedPrinter.h" + +using namespace llvm; +using namespace object; + +namespace { + +class MachODumper : public ObjDumper { +public: + MachODumper(const MachOObjectFile *Obj, ScopedPrinter &Writer) + : ObjDumper(Writer, Obj->getFileName()), Obj(Obj) {} + + void printFileHeaders() override; + void printSectionHeaders() override; + void printRelocations() override; + void printUnwindInfo() override; + void printStackMap() const override; + void printCGProfile() override; + + void printNeededLibraries() override; + + // MachO-specific. + void printMachODataInCode() override; + void printMachOVersionMin() override; + void printMachODysymtab() override; + void printMachOSegment() override; + void printMachOIndirectSymbols() override; + void printMachOLinkerOptions () override; + +private: + template<class MachHeader> + void printFileHeaders(const MachHeader &Header); + + StringRef getSymbolName(const SymbolRef &Symbol); + + void printSymbols() override; + void printDynamicSymbols() override; + void printSymbol(const SymbolRef &Symbol); + + void printRelocation(const RelocationRef &Reloc); + + void printRelocation(const MachOObjectFile *Obj, const RelocationRef &Reloc); + + void printSectionHeaders(const MachOObjectFile *Obj); + + const MachOObjectFile *Obj; +}; + +} // namespace + + +namespace llvm { + +std::unique_ptr<ObjDumper> createMachODumper(const object::MachOObjectFile &Obj, + ScopedPrinter &Writer) { + return std::make_unique<MachODumper>(&Obj, Writer); +} + +} // namespace llvm + +const EnumEntry<uint32_t> 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 }, +}; + +const EnumEntry<uint32_t> 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 }, +}; + +const EnumEntry<uint32_t> MachOHeaderCpuTypes[] = { + { "Any" , static_cast<uint32_t>(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 }, +}; + +const EnumEntry<uint32_t> 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), +}; + +const EnumEntry<uint32_t> 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), +}; + +const EnumEntry<uint32_t> 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), +}; + +const EnumEntry<uint32_t> MachOHeaderCpuSubtypesARM64[] = { + LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM64_ALL), + LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM64_V8), + LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM64E), +}; + +const EnumEntry<uint32_t> MachOHeaderCpuSubtypesSPARC[] = { + LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_SPARC_ALL), +}; + +const EnumEntry<uint32_t> 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), +}; + +const EnumEntry<uint32_t> 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), +}; + +const EnumEntry<unsigned> MachOSectionTypes[] = { + { "Regular" , MachO::S_REGULAR }, + { "ZeroFill" , MachO::S_ZEROFILL }, + { "CStringLiterals" , MachO::S_CSTRING_LITERALS }, + { "4ByteLiterals" , MachO::S_4BYTE_LITERALS }, + { "8ByteLiterals" , MachO::S_8BYTE_LITERALS }, + { "LiteralPointers" , MachO::S_LITERAL_POINTERS }, + { "NonLazySymbolPointers" , MachO::S_NON_LAZY_SYMBOL_POINTERS }, + { "LazySymbolPointers" , MachO::S_LAZY_SYMBOL_POINTERS }, + { "SymbolStubs" , MachO::S_SYMBOL_STUBS }, + { "ModInitFuncPointers" , MachO::S_MOD_INIT_FUNC_POINTERS }, + { "ModTermFuncPointers" , MachO::S_MOD_TERM_FUNC_POINTERS }, + { "Coalesced" , MachO::S_COALESCED }, + { "GBZeroFill" , MachO::S_GB_ZEROFILL }, + { "Interposing" , MachO::S_INTERPOSING }, + { "16ByteLiterals" , MachO::S_16BYTE_LITERALS }, + { "DTraceDOF" , MachO::S_DTRACE_DOF }, + { "LazyDylibSymbolPointers" , MachO::S_LAZY_DYLIB_SYMBOL_POINTERS }, + { "ThreadLocalRegular" , MachO::S_THREAD_LOCAL_REGULAR }, + { "ThreadLocalZerofill" , MachO::S_THREAD_LOCAL_ZEROFILL }, + { "ThreadLocalVariables" , MachO::S_THREAD_LOCAL_VARIABLES }, + { "ThreadLocalVariablePointers" , MachO::S_THREAD_LOCAL_VARIABLE_POINTERS }, + { "ThreadLocalInitFunctionPointers", MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS } +}; + +const EnumEntry<unsigned> 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 */ }, +}; + +const EnumEntry<unsigned> MachOSymbolRefTypes[] = { + { "UndefinedNonLazy", 0 }, + { "ReferenceFlagUndefinedLazy", 1 }, + { "ReferenceFlagDefined", 2 }, + { "ReferenceFlagPrivateDefined", 3 }, + { "ReferenceFlagPrivateUndefinedNonLazy", 4 }, + { "ReferenceFlagPrivateUndefinedLazy", 5 } +}; + +const EnumEntry<unsigned> MachOSymbolFlags[] = { + { "ThumbDef", 0x8 }, + { "ReferencedDynamically", 0x10 }, + { "NoDeadStrip", 0x20 }, + { "WeakRef", 0x40 }, + { "WeakDef", 0x80 }, + { "SymbolResolver", 0x100 }, + { "AltEntry", 0x200 }, + { "ColdFunc", 0x400 }, +}; + +const EnumEntry<unsigned> MachOSymbolTypes[] = { + { "Undef", 0x0 }, + { "Abs", 0x2 }, + { "Indirect", 0xA }, + { "PreboundUndef", 0xC }, + { "Section", 0xE } +}; + +namespace { + struct MachOSection { + ArrayRef<char> Name; + ArrayRef<char> 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; + uint32_t Reserved3; + }; + + struct MachOSegment { + std::string CmdName; + std::string SegName; + uint64_t cmdsize; + uint64_t vmaddr; + uint64_t vmsize; + uint64_t fileoff; + uint64_t filesize; + uint32_t maxprot; + uint32_t initprot; + uint32_t nsects; + uint32_t flags; + }; + + struct MachOSymbol { + uint32_t StringIndex; + uint8_t Type; + uint8_t SectionIndex; + uint16_t Flags; + uint64_t Value; + }; +} + +static std::string getMask(uint32_t prot) +{ + // TODO (davide): This always assumes prot is valid. + // Catch mistakes and report if needed. + std::string Prot; + Prot = ""; + Prot += (prot & MachO::VM_PROT_READ) ? "r" : "-"; + Prot += (prot & MachO::VM_PROT_WRITE) ? "w" : "-"; + Prot += (prot & MachO::VM_PROT_EXECUTE) ? "x" : "-"; + return Prot; +} + +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; + Section.Reserved3 = Sect.reserved3; +} + +static void getSegment(const MachOObjectFile *Obj, + const MachOObjectFile::LoadCommandInfo &L, + MachOSegment &Segment) { + if (!Obj->is64Bit()) { + MachO::segment_command SC = Obj->getSegmentLoadCommand(L); + Segment.CmdName = "LC_SEGMENT"; + Segment.SegName = SC.segname; + Segment.cmdsize = SC.cmdsize; + Segment.vmaddr = SC.vmaddr; + Segment.vmsize = SC.vmsize; + Segment.fileoff = SC.fileoff; + Segment.filesize = SC.filesize; + Segment.maxprot = SC.maxprot; + Segment.initprot = SC.initprot; + Segment.nsects = SC.nsects; + Segment.flags = SC.flags; + return; + } + MachO::segment_command_64 SC = Obj->getSegment64LoadCommand(L); + Segment.CmdName = "LC_SEGMENT_64"; + Segment.SegName = SC.segname; + Segment.cmdsize = SC.cmdsize; + Segment.vmaddr = SC.vmaddr; + Segment.vmsize = SC.vmsize; + Segment.fileoff = SC.fileoff; + Segment.filesize = SC.filesize; + Segment.maxprot = SC.maxprot; + Segment.initprot = SC.initprot; + Segment.nsects = SC.nsects; + Segment.flags = SC.flags; +} + +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<class MachHeader> +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::printSectionHeaders() { return printSectionHeaders(Obj); } + +void MachODumper::printSectionHeaders(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 = unwrapOrError(Obj->getFileName(), Section.getName()); + ArrayRef<char> RawName = Obj->getSectionRawName(DR); + StringRef SegmentName = Obj->getSectionFinalSegmentName(DR); + ArrayRef<char> 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(MachOSectionTypes)); + W.printFlags("Attributes", MOSection.Flags >> 8, + makeArrayRef(MachOSectionAttributes)); + W.printHex("Reserved1", MOSection.Reserved1); + W.printHex("Reserved2", MOSection.Reserved2); + if (Obj->is64Bit()) + W.printHex("Reserved3", MOSection.Reserved3); + + 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 && !Section.isBSS()) + W.printBinaryBlock("SectionData", unwrapOrError(Obj->getFileName(), + Section.getContents())); + } +} + +void MachODumper::printRelocations() { + ListScope D(W, "Relocations"); + + std::error_code EC; + for (const SectionRef &Section : Obj->sections()) { + StringRef Name = unwrapOrError(Obj->getFileName(), Section.getName()); + 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()) { + TargetName = getSymbolName(*Symbol); + } + } else if (!IsScattered) { + section_iterator SecI = Obj->getRelocationSection(DR); + if (SecI != Obj->section_end()) + TargetName = unwrapOrError(Obj->getFileName(), SecI->getName()); + } + 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"; + } +} + +StringRef MachODumper::getSymbolName(const SymbolRef &Symbol) { + Expected<StringRef> SymbolNameOrErr = Symbol.getName(); + if (!SymbolNameOrErr) { + reportError(SymbolNameOrErr.takeError(), Obj->getFileName()); + } + return *SymbolNameOrErr; +} + +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 = getSymbolName(Symbol); + + MachOSymbol MOSymbol; + getSymbol(Obj, Symbol.getRawDataRefImpl(), MOSymbol); + + StringRef SectionName = ""; + // Don't ask a Mach-O STABS symbol for its section unless we know that + // STAB symbol's section field refers to a valid section index. Otherwise + // the symbol may error trying to load a section that does not exist. + // TODO: Add a whitelist of STABS symbol types that contain valid section + // indices. + if (!(MOSymbol.Type & MachO::N_STAB)) { + Expected<section_iterator> SecIOrErr = Symbol.getSection(); + if (!SecIOrErr) + reportError(SecIOrErr.takeError(), Obj->getFileName()); + + section_iterator SecI = *SecIOrErr; + if (SecI != Obj->section_end()) + SectionName = unwrapOrError(Obj->getFileName(), SecI->getName()); + } + + 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<uint16_t>(MOSymbol.Flags & 0x7), + makeArrayRef(MachOSymbolRefTypes)); + W.printFlags("Flags", static_cast<uint16_t>(MOSymbol.Flags & ~0x7), + 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; + if (Expected<StringRef> NameOrErr = Sec.getName()) + Name = *NameOrErr; + else + consumeError(NameOrErr.takeError()); + + if (Name == "__llvm_stackmaps") { + StackMapSection = Sec; + break; + } + } + + if (StackMapSection == object::SectionRef()) + return; + + StringRef StackMapContents = + unwrapOrError(Obj->getFileName(), StackMapSection.getContents()); + ArrayRef<uint8_t> StackMapContentsArray = + arrayRefFromStringRef(StackMapContents); + + if (Obj->isLittleEndian()) + prettyPrintStackMap( + W, StackMapParser<support::little>(StackMapContentsArray)); + else + prettyPrintStackMap( + W, StackMapParser<support::big>(StackMapContentsArray)); +} + +void MachODumper::printCGProfile() { + object::SectionRef CGProfileSection; + for (auto Sec : Obj->sections()) { + StringRef Name; + if (Expected<StringRef> NameOrErr = Sec.getName()) + Name = *NameOrErr; + else + consumeError(NameOrErr.takeError()); + + if (Name == "__cg_profile") { + CGProfileSection = Sec; + break; + } + } + if (CGProfileSection == object::SectionRef()) + return; + + StringRef CGProfileContents = + unwrapOrError(Obj->getFileName(), CGProfileSection.getContents()); + BinaryStreamReader Reader(CGProfileContents, Obj->isLittleEndian() + ? llvm::support::little + : llvm::support::big); + + ListScope L(W, "CGProfile"); + while (!Reader.empty()) { + uint32_t FromIndex, ToIndex; + uint64_t Count; + if (Error Err = Reader.readInteger(FromIndex)) + reportError(std::move(Err), Obj->getFileName()); + if (Error Err = Reader.readInteger(ToIndex)) + reportError(std::move(Err), Obj->getFileName()); + if (Error Err = Reader.readInteger(Count)) + reportError(std::move(Err), Obj->getFileName()); + DictScope D(W, "CGProfileEntry"); + W.printNumber("From", getSymbolName(*Obj->getSymbolByIndex(FromIndex)), + FromIndex); + W.printNumber("To", getSymbolName(*Obj->getSymbolByIndex(ToIndex)), + ToIndex); + W.printNumber("Weight", Count); + } +} + +void MachODumper::printNeededLibraries() { + ListScope D(W, "NeededLibraries"); + + using LibsTy = std::vector<StringRef>; + LibsTy Libs; + + for (const auto &Command : Obj->load_commands()) { + if (Command.C.cmd == MachO::LC_LOAD_DYLIB || + Command.C.cmd == MachO::LC_ID_DYLIB || + Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || + Command.C.cmd == MachO::LC_REEXPORT_DYLIB || + Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || + Command.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) { + MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command); + if (Dl.dylib.name < Dl.cmdsize) { + auto *P = static_cast<const char*>(Command.Ptr) + Dl.dylib.name; + Libs.push_back(P); + } + } + } + + llvm::stable_sort(Libs); + + for (const auto &L : Libs) { + W.startLine() << L << "\n"; + } +} + +void MachODumper::printMachODataInCode() { + for (const auto &Load : Obj->load_commands()) { + if (Load.C.cmd == MachO::LC_DATA_IN_CODE) { + MachO::linkedit_data_command LLC = Obj->getLinkeditDataLoadCommand(Load); + DictScope Group(W, "DataInCode"); + W.printNumber("Data offset", LLC.dataoff); + W.printNumber("Data size", LLC.datasize); + ListScope D(W, "Data entries"); + unsigned NumRegions = LLC.datasize / sizeof(MachO::data_in_code_entry); + for (unsigned i = 0; i < NumRegions; ++i) { + MachO::data_in_code_entry DICE = Obj->getDataInCodeTableEntry( + LLC.dataoff, i); + DictScope Group(W, "Entry"); + W.printNumber("Index", i); + W.printNumber("Offset", DICE.offset); + W.printNumber("Length", DICE.length); + W.printNumber("Kind", DICE.kind); + } + } + } +} + +void MachODumper::printMachOVersionMin() { + for (const auto &Load : Obj->load_commands()) { + StringRef Cmd; + switch (Load.C.cmd) { + case MachO::LC_VERSION_MIN_MACOSX: + Cmd = "LC_VERSION_MIN_MACOSX"; + break; + case MachO::LC_VERSION_MIN_IPHONEOS: + Cmd = "LC_VERSION_MIN_IPHONEOS"; + break; + case MachO::LC_VERSION_MIN_TVOS: + Cmd = "LC_VERSION_MIN_TVOS"; + break; + case MachO::LC_VERSION_MIN_WATCHOS: + Cmd = "LC_VERSION_MIN_WATCHOS"; + break; + case MachO::LC_BUILD_VERSION: + Cmd = "LC_BUILD_VERSION"; + break; + default: + continue; + } + + DictScope Group(W, "MinVersion"); + // Handle LC_BUILD_VERSION. + if (Load.C.cmd == MachO::LC_BUILD_VERSION) { + MachO::build_version_command BVC = Obj->getBuildVersionLoadCommand(Load); + W.printString("Cmd", Cmd); + W.printNumber("Size", BVC.cmdsize); + W.printString("Platform", + MachOObjectFile::getBuildPlatform(BVC.platform)); + W.printString("Version", MachOObjectFile::getVersionString(BVC.minos)); + if (BVC.sdk) + W.printString("SDK", MachOObjectFile::getVersionString(BVC.sdk)); + else + W.printString("SDK", StringRef("n/a")); + continue; + } + + MachO::version_min_command VMC = Obj->getVersionMinLoadCommand(Load); + W.printString("Cmd", Cmd); + W.printNumber("Size", VMC.cmdsize); + SmallString<32> Version; + Version = utostr(MachOObjectFile::getVersionMinMajor(VMC, false)) + "." + + utostr(MachOObjectFile::getVersionMinMinor(VMC, false)); + uint32_t Update = MachOObjectFile::getVersionMinUpdate(VMC, false); + if (Update != 0) + Version += "." + utostr(MachOObjectFile::getVersionMinUpdate(VMC, false)); + W.printString("Version", Version); + SmallString<32> SDK; + if (VMC.sdk == 0) + SDK = "n/a"; + else { + SDK = utostr(MachOObjectFile::getVersionMinMajor(VMC, true)) + "." + + utostr(MachOObjectFile::getVersionMinMinor(VMC, true)); + uint32_t Update = MachOObjectFile::getVersionMinUpdate(VMC, true); + if (Update != 0) + SDK += "." + utostr(MachOObjectFile::getVersionMinUpdate(VMC, true)); + } + W.printString("SDK", SDK); + } +} + +void MachODumper::printMachODysymtab() { + for (const auto &Load : Obj->load_commands()) { + if (Load.C.cmd == MachO::LC_DYSYMTAB) { + MachO::dysymtab_command DLC = Obj->getDysymtabLoadCommand(); + DictScope Group(W, "Dysymtab"); + W.printNumber("ilocalsym", DLC.ilocalsym); + W.printNumber("nlocalsym", DLC.nlocalsym); + W.printNumber("iextdefsym", DLC.iextdefsym); + W.printNumber("nextdefsym", DLC.nextdefsym); + W.printNumber("iundefsym", DLC.iundefsym); + W.printNumber("nundefsym", DLC.nundefsym); + W.printNumber("tocoff", DLC.tocoff); + W.printNumber("ntoc", DLC.ntoc); + W.printNumber("modtaboff", DLC.modtaboff); + W.printNumber("nmodtab", DLC.nmodtab); + W.printNumber("extrefsymoff", DLC.extrefsymoff); + W.printNumber("nextrefsyms", DLC.nextrefsyms); + W.printNumber("indirectsymoff", DLC.indirectsymoff); + W.printNumber("nindirectsyms", DLC.nindirectsyms); + W.printNumber("extreloff", DLC.extreloff); + W.printNumber("nextrel", DLC.nextrel); + W.printNumber("locreloff", DLC.locreloff); + W.printNumber("nlocrel", DLC.nlocrel); + } + } +} + +void MachODumper::printMachOSegment() { + for (const auto &Load : Obj->load_commands()) { + if (Load.C.cmd == MachO::LC_SEGMENT || Load.C.cmd == MachO::LC_SEGMENT_64) { + MachOSegment MOSegment; + getSegment(Obj, Load, MOSegment); + DictScope Group(W, "Segment"); + W.printString("Cmd", MOSegment.CmdName); + W.printString("Name", MOSegment.SegName); + W.printNumber("Size", MOSegment.cmdsize); + W.printHex("vmaddr", MOSegment.vmaddr); + W.printHex("vmsize", MOSegment.vmsize); + W.printNumber("fileoff", MOSegment.fileoff); + W.printNumber("filesize", MOSegment.filesize); + W.printString("maxprot", getMask(MOSegment.maxprot)); + W.printString("initprot", getMask(MOSegment.initprot)); + W.printNumber("nsects", MOSegment.nsects); + W.printHex("flags", MOSegment.flags); + } + } +} + +void MachODumper::printMachOIndirectSymbols() { + for (const auto &Load : Obj->load_commands()) { + if (Load.C.cmd == MachO::LC_DYSYMTAB) { + MachO::dysymtab_command DLC = Obj->getDysymtabLoadCommand(); + DictScope Group(W, "Indirect Symbols"); + W.printNumber("Number", DLC.nindirectsyms); + ListScope D(W, "Symbols"); + for (unsigned i = 0; i < DLC.nindirectsyms; ++i) { + DictScope Group(W, "Entry"); + W.printNumber("Entry Index", i); + W.printHex("Symbol Index", Obj->getIndirectSymbolTableEntry(DLC, i)); + } + } + } +} + +void MachODumper::printMachOLinkerOptions() { + for (const auto &Load : Obj->load_commands()) { + if (Load.C.cmd == MachO::LC_LINKER_OPTION) { + MachO::linker_option_command LOLC = Obj->getLinkerOptionLoadCommand(Load); + DictScope Group(W, "Linker Options"); + W.printNumber("Size", LOLC.cmdsize); + ListScope D(W, "Strings"); + uint64_t DataSize = LOLC.cmdsize - sizeof(MachO::linker_option_command); + const char *P = Load.Ptr + sizeof(MachO::linker_option_command); + StringRef Data(P, DataSize); + for (unsigned i = 0; i < LOLC.count; ++i) { + std::pair<StringRef,StringRef> Split = Data.split('\0'); + W.printString("Value", Split.first); + Data = Split.second; + } + } + } +} |