diff options
Diffstat (limited to 'contrib/llvm/tools/macho-dump')
| -rw-r--r-- | contrib/llvm/tools/macho-dump/macho-dump.cpp | 434 |
1 files changed, 0 insertions, 434 deletions
diff --git a/contrib/llvm/tools/macho-dump/macho-dump.cpp b/contrib/llvm/tools/macho-dump/macho-dump.cpp deleted file mode 100644 index 39c2860..0000000 --- a/contrib/llvm/tools/macho-dump/macho-dump.cpp +++ /dev/null @@ -1,434 +0,0 @@ -//===-- macho-dump.cpp - Mach Object Dumping Tool -------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This is a testing tool for use with the MC/Mach-O LLVM components. -// -//===----------------------------------------------------------------------===// - -#include "llvm/Object/MachO.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/ADT/Twine.h" -#include "llvm/Support/Casting.h" -#include "llvm/Support/CommandLine.h" -#include "llvm/Support/Format.h" -#include "llvm/Support/ManagedStatic.h" -#include "llvm/Support/MemoryBuffer.h" -#include "llvm/Support/raw_ostream.h" -#include <system_error> -using namespace llvm; -using namespace llvm::object; - -static cl::opt<std::string> -InputFile(cl::Positional, cl::desc("<input file>"), cl::init("-")); - -static cl::opt<bool> -ShowSectionData("dump-section-data", cl::desc("Dump the contents of sections"), - cl::init(false)); - -/// - -static const char *ProgramName; - -static void Message(const char *Type, const Twine &Msg) { - errs() << ProgramName << ": " << Type << ": " << Msg << "\n"; -} - -static int Error(const Twine &Msg) { - Message("error", Msg); - return 1; -} - -static void Warning(const Twine &Msg) { - Message("warning", Msg); -} - -/// - -static void DumpSegmentCommandData(StringRef Name, - uint64_t VMAddr, uint64_t VMSize, - uint64_t FileOffset, uint64_t FileSize, - uint32_t MaxProt, uint32_t InitProt, - uint32_t NumSections, uint32_t Flags) { - outs() << " ('segment_name', '"; - outs().write_escaped(Name, /*UseHexEscapes=*/true) << "')\n"; - outs() << " ('vm_addr', " << VMAddr << ")\n"; - outs() << " ('vm_size', " << VMSize << ")\n"; - outs() << " ('file_offset', " << FileOffset << ")\n"; - outs() << " ('file_size', " << FileSize << ")\n"; - outs() << " ('maxprot', " << MaxProt << ")\n"; - outs() << " ('initprot', " << InitProt << ")\n"; - outs() << " ('num_sections', " << NumSections << ")\n"; - outs() << " ('flags', " << Flags << ")\n"; -} - -static int DumpSectionData(const MachOObjectFile &Obj, unsigned Index, - StringRef Name, - StringRef SegmentName, uint64_t Address, - uint64_t Size, uint32_t Offset, - uint32_t Align, uint32_t RelocationTableOffset, - uint32_t NumRelocationTableEntries, - uint32_t Flags, uint32_t Reserved1, - uint32_t Reserved2, uint64_t Reserved3 = ~0ULL) { - outs() << " # Section " << Index << "\n"; - outs() << " (('section_name', '"; - outs().write_escaped(Name, /*UseHexEscapes=*/true) << "')\n"; - outs() << " ('segment_name', '"; - outs().write_escaped(SegmentName, /*UseHexEscapes=*/true) << "')\n"; - outs() << " ('address', " << Address << ")\n"; - outs() << " ('size', " << Size << ")\n"; - outs() << " ('offset', " << Offset << ")\n"; - outs() << " ('alignment', " << Align << ")\n"; - outs() << " ('reloc_offset', " << RelocationTableOffset << ")\n"; - outs() << " ('num_reloc', " << NumRelocationTableEntries << ")\n"; - outs() << " ('flags', " << format("0x%x", Flags) << ")\n"; - outs() << " ('reserved1', " << Reserved1 << ")\n"; - outs() << " ('reserved2', " << Reserved2 << ")\n"; - if (Reserved3 != ~0ULL) - outs() << " ('reserved3', " << Reserved3 << ")\n"; - outs() << " ),\n"; - - // Dump the relocation entries. - outs() << " ('_relocations', [\n"; - unsigned RelNum = 0; - for (relocation_iterator I = Obj.section_rel_begin(Index), - E = Obj.section_rel_end(Index); - I != E; ++I, ++RelNum) { - MachO::any_relocation_info RE = Obj.getRelocation(I->getRawDataRefImpl()); - outs() << " # Relocation " << RelNum << "\n"; - outs() << " (('word-0', " << format("0x%x", RE.r_word0) << "),\n"; - outs() << " ('word-1', " << format("0x%x", RE.r_word1) << ")),\n"; - } - outs() << " ])\n"; - - // Dump the section data, if requested. - if (ShowSectionData) { - outs() << " ('_section_data', '"; - StringRef Data = Obj.getData().substr(Offset, Size); - for (unsigned i = 0; i != Data.size(); ++i) { - if (i && (i % 4) == 0) - outs() << ' '; - outs() << hexdigit((Data[i] >> 4) & 0xF, /*LowerCase=*/true); - outs() << hexdigit((Data[i] >> 0) & 0xF, /*LowerCase=*/true); - } - outs() << "')\n"; - } - - return 0; -} - -static int DumpSegmentCommand(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - MachO::segment_command SLC = Obj.getSegmentLoadCommand(LCI); - - DumpSegmentCommandData(StringRef(SLC.segname, 16), SLC.vmaddr, - SLC.vmsize, SLC.fileoff, SLC.filesize, - SLC.maxprot, SLC.initprot, SLC.nsects, SLC.flags); - - // Dump the sections. - outs() << " ('sections', [\n"; - for (unsigned i = 0; i != SLC.nsects; ++i) { - MachO::section Sect = Obj.getSection(LCI, i); - DumpSectionData(Obj, i, StringRef(Sect.sectname, 16), - StringRef(Sect.segname, 16), Sect.addr, - Sect.size, Sect.offset, Sect.align, - Sect.reloff, Sect.nreloc, Sect.flags, - Sect.reserved1, Sect.reserved2); - } - outs() << " ])\n"; - - return 0; -} - -static int DumpSegment64Command(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - MachO::segment_command_64 SLC = Obj.getSegment64LoadCommand(LCI); - DumpSegmentCommandData(StringRef(SLC.segname, 16), SLC.vmaddr, - SLC.vmsize, SLC.fileoff, SLC.filesize, - SLC.maxprot, SLC.initprot, SLC.nsects, SLC.flags); - - // Dump the sections. - outs() << " ('sections', [\n"; - for (unsigned i = 0; i != SLC.nsects; ++i) { - MachO::section_64 Sect = Obj.getSection64(LCI, i); - - DumpSectionData(Obj, i, StringRef(Sect.sectname, 16), - StringRef(Sect.segname, 16), Sect.addr, - Sect.size, Sect.offset, Sect.align, - Sect.reloff, Sect.nreloc, Sect.flags, - Sect.reserved1, Sect.reserved2, - Sect.reserved3); - } - outs() << " ])\n"; - - return 0; -} - -static void DumpSymbolTableEntryData(const MachOObjectFile &Obj, - unsigned Index, uint32_t StringIndex, - uint8_t Type, uint8_t SectionIndex, - uint16_t Flags, uint64_t Value, - StringRef StringTable) { - const char *Name = &StringTable.data()[StringIndex]; - outs() << " # Symbol " << Index << "\n"; - outs() << " (('n_strx', " << StringIndex << ")\n"; - outs() << " ('n_type', " << format("0x%x", Type) << ")\n"; - outs() << " ('n_sect', " << uint32_t(SectionIndex) << ")\n"; - outs() << " ('n_desc', " << Flags << ")\n"; - outs() << " ('n_value', " << Value << ")\n"; - outs() << " ('_string', '" << Name << "')\n"; - outs() << " ),\n"; -} - -static int DumpSymtabCommand(const MachOObjectFile &Obj) { - MachO::symtab_command SLC = Obj.getSymtabLoadCommand(); - - outs() << " ('symoff', " << SLC.symoff << ")\n"; - outs() << " ('nsyms', " << SLC.nsyms << ")\n"; - outs() << " ('stroff', " << SLC.stroff << ")\n"; - outs() << " ('strsize', " << SLC.strsize << ")\n"; - - // Dump the string data. - outs() << " ('_string_data', '"; - StringRef StringTable = Obj.getStringTableData(); - outs().write_escaped(StringTable, - /*UseHexEscapes=*/true) << "')\n"; - - // Dump the symbol table. - outs() << " ('_symbols', [\n"; - unsigned SymNum = 0; - for (const SymbolRef &Symbol : Obj.symbols()) { - DataRefImpl DRI = Symbol.getRawDataRefImpl(); - if (Obj.is64Bit()) { - MachO::nlist_64 STE = Obj.getSymbol64TableEntry(DRI); - DumpSymbolTableEntryData(Obj, SymNum, STE.n_strx, STE.n_type, - STE.n_sect, STE.n_desc, STE.n_value, - StringTable); - } else { - MachO::nlist STE = Obj.getSymbolTableEntry(DRI); - DumpSymbolTableEntryData(Obj, SymNum, STE.n_strx, STE.n_type, - STE.n_sect, STE.n_desc, STE.n_value, - StringTable); - } - SymNum++; - } - outs() << " ])\n"; - - return 0; -} - -static int DumpDysymtabCommand(const MachOObjectFile &Obj) { - MachO::dysymtab_command DLC = Obj.getDysymtabLoadCommand(); - - outs() << " ('ilocalsym', " << DLC.ilocalsym << ")\n"; - outs() << " ('nlocalsym', " << DLC.nlocalsym << ")\n"; - outs() << " ('iextdefsym', " << DLC.iextdefsym << ")\n"; - outs() << " ('nextdefsym', " << DLC.nextdefsym << ")\n"; - outs() << " ('iundefsym', " << DLC.iundefsym << ")\n"; - outs() << " ('nundefsym', " << DLC.nundefsym << ")\n"; - outs() << " ('tocoff', " << DLC.tocoff << ")\n"; - outs() << " ('ntoc', " << DLC.ntoc << ")\n"; - outs() << " ('modtaboff', " << DLC.modtaboff << ")\n"; - outs() << " ('nmodtab', " << DLC.nmodtab << ")\n"; - outs() << " ('extrefsymoff', " << DLC.extrefsymoff << ")\n"; - outs() << " ('nextrefsyms', " << DLC.nextrefsyms << ")\n"; - outs() << " ('indirectsymoff', " << DLC.indirectsymoff << ")\n"; - outs() << " ('nindirectsyms', " << DLC.nindirectsyms << ")\n"; - outs() << " ('extreloff', " << DLC.extreloff << ")\n"; - outs() << " ('nextrel', " << DLC.nextrel << ")\n"; - outs() << " ('locreloff', " << DLC.locreloff << ")\n"; - outs() << " ('nlocrel', " << DLC.nlocrel << ")\n"; - - // Dump the indirect symbol table. - outs() << " ('_indirect_symbols', [\n"; - for (unsigned i = 0; i != DLC.nindirectsyms; ++i) { - uint32_t ISTE = Obj.getIndirectSymbolTableEntry(DLC, i); - outs() << " # Indirect Symbol " << i << "\n"; - outs() << " (('symbol_index', " << format("0x%x", ISTE) << "),),\n"; - } - outs() << " ])\n"; - - return 0; -} - -static int -DumpLinkeditDataCommand(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - MachO::linkedit_data_command LLC = Obj.getLinkeditDataLoadCommand(LCI); - outs() << " ('dataoff', " << LLC.dataoff << ")\n" - << " ('datasize', " << LLC.datasize << ")\n" - << " ('_addresses', [\n"; - - SmallVector<uint64_t, 8> Addresses; - Obj.ReadULEB128s(LLC.dataoff, Addresses); - for (unsigned i = 0, e = Addresses.size(); i != e; ++i) - outs() << " # Address " << i << '\n' - << " ('address', " << format("0x%x", Addresses[i]) << "),\n"; - - outs() << " ])\n"; - - return 0; -} - -static int -DumpDataInCodeDataCommand(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - MachO::linkedit_data_command LLC = Obj.getLinkeditDataLoadCommand(LCI); - outs() << " ('dataoff', " << LLC.dataoff << ")\n" - << " ('datasize', " << LLC.datasize << ")\n" - << " ('_data_regions', [\n"; - - 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); - outs() << " # DICE " << i << "\n" - << " ('offset', " << DICE.offset << ")\n" - << " ('length', " << DICE.length << ")\n" - << " ('kind', " << DICE.kind << ")\n"; - } - - outs() <<" ])\n"; - - return 0; -} - -static int -DumpLinkerOptionsCommand(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - MachO::linker_option_command LOLC = Obj.getLinkerOptionLoadCommand(LCI); - outs() << " ('count', " << LOLC.count << ")\n" - << " ('_strings', [\n"; - - uint64_t DataSize = LOLC.cmdsize - sizeof(MachO::linker_option_command); - const char *P = LCI.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'); - outs() << "\t\""; - outs().write_escaped(Split.first); - outs() << "\",\n"; - Data = Split.second; - } - outs() <<" ])\n"; - - return 0; -} - -static int -DumpVersionMin(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - MachO::version_min_command VMLC = Obj.getVersionMinLoadCommand(LCI); - outs() << " ('version, " << VMLC.version << ")\n" - << " ('sdk, " << VMLC.sdk << ")\n"; - return 0; -} - -static int -DumpDylibID(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - MachO::dylib_command DLLC = Obj.getDylibIDLoadCommand(LCI); - outs() << " ('install_name', '" << LCI.Ptr + DLLC.dylib.name << "')\n" - << " ('timestamp, " << DLLC.dylib.timestamp << ")\n" - << " ('cur_version, " << DLLC.dylib.current_version << ")\n" - << " ('compat_version, " << DLLC.dylib.compatibility_version << ")\n"; - return 0; -} - -static int DumpLoadCommand(const MachOObjectFile &Obj, - const MachOObjectFile::LoadCommandInfo &LCI) { - switch (LCI.C.cmd) { - case MachO::LC_SEGMENT: - return DumpSegmentCommand(Obj, LCI); - case MachO::LC_SEGMENT_64: - return DumpSegment64Command(Obj, LCI); - case MachO::LC_SYMTAB: - return DumpSymtabCommand(Obj); - case MachO::LC_DYSYMTAB: - return DumpDysymtabCommand(Obj); - case MachO::LC_CODE_SIGNATURE: - case MachO::LC_SEGMENT_SPLIT_INFO: - case MachO::LC_FUNCTION_STARTS: - return DumpLinkeditDataCommand(Obj, LCI); - case MachO::LC_DATA_IN_CODE: - return DumpDataInCodeDataCommand(Obj, LCI); - case MachO::LC_LINKER_OPTION: - return DumpLinkerOptionsCommand(Obj, LCI); - case MachO::LC_VERSION_MIN_IPHONEOS: - case MachO::LC_VERSION_MIN_MACOSX: - return DumpVersionMin(Obj, LCI); - case MachO::LC_ID_DYLIB: - return DumpDylibID(Obj, LCI); - default: - Warning("unknown load command: " + Twine(LCI.C.cmd)); - return 0; - } -} - -static int DumpLoadCommand(const MachOObjectFile &Obj, unsigned Index, - const MachOObjectFile::LoadCommandInfo &LCI) { - outs() << " # Load Command " << Index << "\n" - << " (('command', " << LCI.C.cmd << ")\n" - << " ('size', " << LCI.C.cmdsize << ")\n"; - int Res = DumpLoadCommand(Obj, LCI); - outs() << " ),\n"; - return Res; -} - -static void printHeader(const MachOObjectFile *Obj, - const MachO::mach_header &Header) { - outs() << "('cputype', " << Header.cputype << ")\n"; - outs() << "('cpusubtype', " << Header.cpusubtype << ")\n"; - outs() << "('filetype', " << Header.filetype << ")\n"; - outs() << "('num_load_commands', " << Header.ncmds << ")\n"; - outs() << "('load_commands_size', " << Header.sizeofcmds << ")\n"; - outs() << "('flag', " << Header.flags << ")\n"; - - // Print extended header if 64-bit. - if (Obj->is64Bit()) { - const MachO::mach_header_64 *Header64 = - reinterpret_cast<const MachO::mach_header_64 *>(&Header); - outs() << "('reserved', " << Header64->reserved << ")\n"; - } -} - -int main(int argc, char **argv) { - ProgramName = argv[0]; - llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. - - cl::ParseCommandLineOptions(argc, argv, "llvm Mach-O dumping tool\n"); - - ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(InputFile); - if (std::error_code EC = BinaryOrErr.getError()) - return Error("unable to read input: '" + EC.message() + "'"); - Binary &Binary = *BinaryOrErr.get().getBinary(); - - const MachOObjectFile *InputObject = dyn_cast<MachOObjectFile>(&Binary); - if (!InputObject) - return Error("Not a MachO object"); - - // Print the header - MachO::mach_header_64 Header64; - MachO::mach_header *Header = reinterpret_cast<MachO::mach_header*>(&Header64); - if (InputObject->is64Bit()) - Header64 = InputObject->getHeader64(); - else - *Header = InputObject->getHeader(); - printHeader(InputObject, *Header); - - // Print the load commands. - int Res = 0; - unsigned Index = 0; - outs() << "('load_commands', [\n"; - for (const auto &Load : InputObject->load_commands()) { - if (DumpLoadCommand(*InputObject, Index++, Load)) - break; - } - outs() << "])\n"; - - return Res; -} |
