diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
commit | 0b57cec536236d46e3dba9bd041533462f33dbb7 (patch) | |
tree | 56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/tools/llvm-objdump/MachODump.cpp | |
parent | 718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff) |
Move all sources from the llvm project into contrib/llvm-project.
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo". That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.
Updating the vendor area to match this layout is next.
Notes
Notes:
svn path=/head/; revision=355940
Diffstat (limited to 'contrib/llvm/tools/llvm-objdump/MachODump.cpp')
-rw-r--r-- | contrib/llvm/tools/llvm-objdump/MachODump.cpp | 10398 |
1 files changed, 0 insertions, 10398 deletions
diff --git a/contrib/llvm/tools/llvm-objdump/MachODump.cpp b/contrib/llvm/tools/llvm-objdump/MachODump.cpp deleted file mode 100644 index 58ff7be4543c..000000000000 --- a/contrib/llvm/tools/llvm-objdump/MachODump.cpp +++ /dev/null @@ -1,10398 +0,0 @@ -//===-- MachODump.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-objdump. -// -//===----------------------------------------------------------------------===// - -#include "llvm-objdump.h" -#include "llvm-c/Disassembler.h" -#include "llvm/ADT/STLExtras.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/ADT/Triple.h" -#include "llvm/BinaryFormat/MachO.h" -#include "llvm/Config/config.h" -#include "llvm/DebugInfo/DIContext.h" -#include "llvm/DebugInfo/DWARF/DWARFContext.h" -#include "llvm/Demangle/Demangle.h" -#include "llvm/MC/MCAsmInfo.h" -#include "llvm/MC/MCContext.h" -#include "llvm/MC/MCDisassembler/MCDisassembler.h" -#include "llvm/MC/MCInst.h" -#include "llvm/MC/MCInstPrinter.h" -#include "llvm/MC/MCInstrDesc.h" -#include "llvm/MC/MCInstrInfo.h" -#include "llvm/MC/MCRegisterInfo.h" -#include "llvm/MC/MCSubtargetInfo.h" -#include "llvm/Object/MachO.h" -#include "llvm/Object/MachOUniversal.h" -#include "llvm/Support/Casting.h" -#include "llvm/Support/CommandLine.h" -#include "llvm/Support/Debug.h" -#include "llvm/Support/Endian.h" -#include "llvm/Support/Format.h" -#include "llvm/Support/FormattedStream.h" -#include "llvm/Support/GraphWriter.h" -#include "llvm/Support/LEB128.h" -#include "llvm/Support/MemoryBuffer.h" -#include "llvm/Support/TargetRegistry.h" -#include "llvm/Support/TargetSelect.h" -#include "llvm/Support/ToolOutputFile.h" -#include "llvm/Support/WithColor.h" -#include "llvm/Support/raw_ostream.h" -#include <algorithm> -#include <cstring> -#include <system_error> - -#ifdef HAVE_LIBXAR -extern "C" { -#include <xar/xar.h> -} -#endif - -using namespace llvm::object; - -namespace llvm { - -cl::OptionCategory MachOCat("llvm-objdump MachO Specific Options"); - -extern cl::opt<bool> ArchiveHeaders; -extern cl::opt<bool> Disassemble; -extern cl::opt<bool> DisassembleAll; -extern cl::opt<DIDumpType> DwarfDumpType; -extern cl::list<std::string> FilterSections; -extern cl::list<std::string> MAttrs; -extern cl::opt<std::string> MCPU; -extern cl::opt<bool> NoShowRawInsn; -extern cl::opt<bool> NoLeadingAddr; -extern cl::opt<bool> PrintImmHex; -extern cl::opt<bool> PrivateHeaders; -extern cl::opt<bool> Relocations; -extern cl::opt<bool> SectionHeaders; -extern cl::opt<bool> SectionContents; -extern cl::opt<bool> SymbolTable; -extern cl::opt<std::string> TripleName; -extern cl::opt<bool> UnwindInfo; - -cl::opt<bool> - FirstPrivateHeader("private-header", - cl::desc("Display only the first format specific file " - "header"), - cl::cat(MachOCat)); - -cl::opt<bool> ExportsTrie("exports-trie", - cl::desc("Display mach-o exported symbols"), - cl::cat(MachOCat)); - -cl::opt<bool> Rebase("rebase", cl::desc("Display mach-o rebasing info"), - cl::cat(MachOCat)); - -cl::opt<bool> Bind("bind", cl::desc("Display mach-o binding info"), - cl::cat(MachOCat)); - -cl::opt<bool> LazyBind("lazy-bind", - cl::desc("Display mach-o lazy binding info"), - cl::cat(MachOCat)); - -cl::opt<bool> WeakBind("weak-bind", - cl::desc("Display mach-o weak binding info"), - cl::cat(MachOCat)); - -static cl::opt<bool> - UseDbg("g", cl::Grouping, - cl::desc("Print line information from debug info if available"), - cl::cat(MachOCat)); - -static cl::opt<std::string> DSYMFile("dsym", - cl::desc("Use .dSYM file for debug info"), - cl::cat(MachOCat)); - -static cl::opt<bool> FullLeadingAddr("full-leading-addr", - cl::desc("Print full leading address"), - cl::cat(MachOCat)); - -static cl::opt<bool> NoLeadingHeaders("no-leading-headers", - cl::desc("Print no leading headers"), - cl::cat(MachOCat)); - -cl::opt<bool> UniversalHeaders("universal-headers", - cl::desc("Print Mach-O universal headers " - "(requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> - ArchiveMemberOffsets("archive-member-offsets", - cl::desc("Print the offset to each archive member for " - "Mach-O archives (requires -macho and " - "-archive-headers)"), - cl::cat(MachOCat)); - -cl::opt<bool> IndirectSymbols("indirect-symbols", - cl::desc("Print indirect symbol table for Mach-O " - "objects (requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> - DataInCode("data-in-code", - cl::desc("Print the data in code table for Mach-O objects " - "(requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> LinkOptHints("link-opt-hints", - cl::desc("Print the linker optimization hints for " - "Mach-O objects (requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> InfoPlist("info-plist", - cl::desc("Print the info plist section as strings for " - "Mach-O objects (requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> DylibsUsed("dylibs-used", - cl::desc("Print the shared libraries used for linked " - "Mach-O files (requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> - DylibId("dylib-id", - cl::desc("Print the shared library's id for the dylib Mach-O " - "file (requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> - NonVerbose("non-verbose", - cl::desc("Print the info for Mach-O objects in " - "non-verbose or numeric form (requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<bool> - ObjcMetaData("objc-meta-data", - cl::desc("Print the Objective-C runtime meta data for " - "Mach-O files (requires -macho)"), - cl::cat(MachOCat)); - -cl::opt<std::string> DisSymName( - "dis-symname", - cl::desc("disassemble just this symbol's instructions (requires -macho)"), - cl::cat(MachOCat)); - -static cl::opt<bool> NoSymbolicOperands( - "no-symbolic-operands", - cl::desc("do not symbolic operands when disassembling (requires -macho)"), - cl::cat(MachOCat)); - -static cl::list<std::string> - ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"), - cl::ZeroOrMore, cl::cat(MachOCat)); - -bool ArchAll = false; - -static std::string ThumbTripleName; - -static const Target *GetTarget(const MachOObjectFile *MachOObj, - const char **McpuDefault, - const Target **ThumbTarget) { - // Figure out the target triple. - Triple TT(TripleName); - if (TripleName.empty()) { - TT = MachOObj->getArchTriple(McpuDefault); - TripleName = TT.str(); - } - - if (TT.getArch() == Triple::arm) { - // We've inferred a 32-bit ARM target from the object file. All MachO CPUs - // that support ARM are also capable of Thumb mode. - Triple ThumbTriple = TT; - std::string ThumbName = (Twine("thumb") + TT.getArchName().substr(3)).str(); - ThumbTriple.setArchName(ThumbName); - ThumbTripleName = ThumbTriple.str(); - } - - // Get the target specific parser. - std::string Error; - const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); - if (TheTarget && ThumbTripleName.empty()) - return TheTarget; - - *ThumbTarget = TargetRegistry::lookupTarget(ThumbTripleName, Error); - if (*ThumbTarget) - return TheTarget; - - WithColor::error(errs(), "llvm-objdump") << "unable to get target for '"; - if (!TheTarget) - errs() << TripleName; - else - errs() << ThumbTripleName; - errs() << "', see --version and --triple.\n"; - return nullptr; -} - -struct SymbolSorter { - bool operator()(const SymbolRef &A, const SymbolRef &B) { - Expected<SymbolRef::Type> ATypeOrErr = A.getType(); - if (!ATypeOrErr) - report_error(ATypeOrErr.takeError(), A.getObject()->getFileName()); - SymbolRef::Type AType = *ATypeOrErr; - Expected<SymbolRef::Type> BTypeOrErr = B.getType(); - if (!BTypeOrErr) - report_error(BTypeOrErr.takeError(), B.getObject()->getFileName()); - SymbolRef::Type BType = *BTypeOrErr; - uint64_t AAddr = (AType != SymbolRef::ST_Function) ? 0 : A.getValue(); - uint64_t BAddr = (BType != SymbolRef::ST_Function) ? 0 : B.getValue(); - return AAddr < BAddr; - } -}; - -// Types for the storted data in code table that is built before disassembly -// and the predicate function to sort them. -typedef std::pair<uint64_t, DiceRef> DiceTableEntry; -typedef std::vector<DiceTableEntry> DiceTable; -typedef DiceTable::iterator dice_table_iterator; - -#ifdef HAVE_LIBXAR -namespace { -struct ScopedXarFile { - xar_t xar; - ScopedXarFile(const char *filename, int32_t flags) - : xar(xar_open(filename, flags)) {} - ~ScopedXarFile() { - if (xar) - xar_close(xar); - } - ScopedXarFile(const ScopedXarFile &) = delete; - ScopedXarFile &operator=(const ScopedXarFile &) = delete; - operator xar_t() { return xar; } -}; - -struct ScopedXarIter { - xar_iter_t iter; - ScopedXarIter() : iter(xar_iter_new()) {} - ~ScopedXarIter() { - if (iter) - xar_iter_free(iter); - } - ScopedXarIter(const ScopedXarIter &) = delete; - ScopedXarIter &operator=(const ScopedXarIter &) = delete; - operator xar_iter_t() { return iter; } -}; -} // namespace -#endif // defined(HAVE_LIBXAR) - -// This is used to search for a data in code table entry for the PC being -// disassembled. The j parameter has the PC in j.first. A single data in code -// table entry can cover many bytes for each of its Kind's. So if the offset, -// aka the i.first value, of the data in code table entry plus its Length -// covers the PC being searched for this will return true. If not it will -// return false. -static bool compareDiceTableEntries(const DiceTableEntry &i, - const DiceTableEntry &j) { - uint16_t Length; - i.second.getLength(Length); - - return j.first >= i.first && j.first < i.first + Length; -} - -static uint64_t DumpDataInCode(const uint8_t *bytes, uint64_t Length, - unsigned short Kind) { - uint32_t Value, Size = 1; - - switch (Kind) { - default: - case MachO::DICE_KIND_DATA: - if (Length >= 4) { - if (!NoShowRawInsn) - dumpBytes(makeArrayRef(bytes, 4), outs()); - Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; - outs() << "\t.long " << Value; - Size = 4; - } else if (Length >= 2) { - if (!NoShowRawInsn) - dumpBytes(makeArrayRef(bytes, 2), outs()); - Value = bytes[1] << 8 | bytes[0]; - outs() << "\t.short " << Value; - Size = 2; - } else { - if (!NoShowRawInsn) - dumpBytes(makeArrayRef(bytes, 2), outs()); - Value = bytes[0]; - outs() << "\t.byte " << Value; - Size = 1; - } - if (Kind == MachO::DICE_KIND_DATA) - outs() << "\t@ KIND_DATA\n"; - else - outs() << "\t@ data in code kind = " << Kind << "\n"; - break; - case MachO::DICE_KIND_JUMP_TABLE8: - if (!NoShowRawInsn) - dumpBytes(makeArrayRef(bytes, 1), outs()); - Value = bytes[0]; - outs() << "\t.byte " << format("%3u", Value) << "\t@ KIND_JUMP_TABLE8\n"; - Size = 1; - break; - case MachO::DICE_KIND_JUMP_TABLE16: - if (!NoShowRawInsn) - dumpBytes(makeArrayRef(bytes, 2), outs()); - Value = bytes[1] << 8 | bytes[0]; - outs() << "\t.short " << format("%5u", Value & 0xffff) - << "\t@ KIND_JUMP_TABLE16\n"; - Size = 2; - break; - case MachO::DICE_KIND_JUMP_TABLE32: - case MachO::DICE_KIND_ABS_JUMP_TABLE32: - if (!NoShowRawInsn) - dumpBytes(makeArrayRef(bytes, 4), outs()); - Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; - outs() << "\t.long " << Value; - if (Kind == MachO::DICE_KIND_JUMP_TABLE32) - outs() << "\t@ KIND_JUMP_TABLE32\n"; - else - outs() << "\t@ KIND_ABS_JUMP_TABLE32\n"; - Size = 4; - break; - } - return Size; -} - -static void getSectionsAndSymbols(MachOObjectFile *MachOObj, - std::vector<SectionRef> &Sections, - std::vector<SymbolRef> &Symbols, - SmallVectorImpl<uint64_t> &FoundFns, - uint64_t &BaseSegmentAddress) { - const StringRef FileName = MachOObj->getFileName(); - for (const SymbolRef &Symbol : MachOObj->symbols()) { - StringRef SymName = unwrapOrError(Symbol.getName(), FileName); - if (!SymName.startswith("ltmp")) - Symbols.push_back(Symbol); - } - - for (const SectionRef &Section : MachOObj->sections()) { - StringRef SectName; - Section.getName(SectName); - Sections.push_back(Section); - } - - bool BaseSegmentAddressSet = false; - for (const auto &Command : MachOObj->load_commands()) { - if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) { - // We found a function starts segment, parse the addresses for later - // consumption. - MachO::linkedit_data_command LLC = - MachOObj->getLinkeditDataLoadCommand(Command); - - MachOObj->ReadULEB128s(LLC.dataoff, FoundFns); - } else if (Command.C.cmd == MachO::LC_SEGMENT) { - MachO::segment_command SLC = MachOObj->getSegmentLoadCommand(Command); - StringRef SegName = SLC.segname; - if (!BaseSegmentAddressSet && SegName != "__PAGEZERO") { - BaseSegmentAddressSet = true; - BaseSegmentAddress = SLC.vmaddr; - } - } - } -} - -static void printRelocationTargetName(const MachOObjectFile *O, - const MachO::any_relocation_info &RE, - raw_string_ostream &Fmt) { - // Target of a scattered relocation is an address. In the interest of - // generating pretty output, scan through the symbol table looking for a - // symbol that aligns with that address. If we find one, print it. - // Otherwise, we just print the hex address of the target. - const StringRef FileName = O->getFileName(); - if (O->isRelocationScattered(RE)) { - uint32_t Val = O->getPlainRelocationSymbolNum(RE); - - for (const SymbolRef &Symbol : O->symbols()) { - uint64_t Addr = unwrapOrError(Symbol.getAddress(), FileName); - if (Addr != Val) - continue; - Fmt << unwrapOrError(Symbol.getName(), FileName); - return; - } - - // If we couldn't find a symbol that this relocation refers to, try - // to find a section beginning instead. - for (const SectionRef &Section : ToolSectionFilter(*O)) { - StringRef Name; - uint64_t Addr = Section.getAddress(); - if (Addr != Val) - continue; - if (std::error_code EC = Section.getName(Name)) - report_error(errorCodeToError(EC), O->getFileName()); - Fmt << Name; - return; - } - - Fmt << format("0x%x", Val); - return; - } - - StringRef S; - bool isExtern = O->getPlainRelocationExternal(RE); - uint64_t Val = O->getPlainRelocationSymbolNum(RE); - - if (O->getAnyRelocationType(RE) == MachO::ARM64_RELOC_ADDEND) { - Fmt << format("0x%0" PRIx64, Val); - return; - } - - if (isExtern) { - symbol_iterator SI = O->symbol_begin(); - advance(SI, Val); - S = unwrapOrError(SI->getName(), FileName); - } else { - section_iterator SI = O->section_begin(); - // Adjust for the fact that sections are 1-indexed. - if (Val == 0) { - Fmt << "0 (?,?)"; - return; - } - uint32_t I = Val - 1; - while (I != 0 && SI != O->section_end()) { - --I; - advance(SI, 1); - } - if (SI == O->section_end()) - Fmt << Val << " (?,?)"; - else - SI->getName(S); - } - - Fmt << S; -} - -Error getMachORelocationValueString(const MachOObjectFile *Obj, - const RelocationRef &RelRef, - SmallVectorImpl<char> &Result) { - DataRefImpl Rel = RelRef.getRawDataRefImpl(); - MachO::any_relocation_info RE = Obj->getRelocation(Rel); - - unsigned Arch = Obj->getArch(); - - std::string FmtBuf; - raw_string_ostream Fmt(FmtBuf); - unsigned Type = Obj->getAnyRelocationType(RE); - bool IsPCRel = Obj->getAnyRelocationPCRel(RE); - - // Determine any addends that should be displayed with the relocation. - // These require decoding the relocation type, which is triple-specific. - - // X86_64 has entirely custom relocation types. - if (Arch == Triple::x86_64) { - switch (Type) { - case MachO::X86_64_RELOC_GOT_LOAD: - case MachO::X86_64_RELOC_GOT: { - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "@GOT"; - if (IsPCRel) - Fmt << "PCREL"; - break; - } - case MachO::X86_64_RELOC_SUBTRACTOR: { - DataRefImpl RelNext = Rel; - Obj->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); - - // X86_64_RELOC_SUBTRACTOR must be followed by a relocation of type - // X86_64_RELOC_UNSIGNED. - // NOTE: Scattered relocations don't exist on x86_64. - unsigned RType = Obj->getAnyRelocationType(RENext); - if (RType != MachO::X86_64_RELOC_UNSIGNED) - report_error(Obj->getFileName(), "Expected X86_64_RELOC_UNSIGNED after " - "X86_64_RELOC_SUBTRACTOR."); - - // The X86_64_RELOC_UNSIGNED contains the minuend symbol; - // X86_64_RELOC_SUBTRACTOR contains the subtrahend. - printRelocationTargetName(Obj, RENext, Fmt); - Fmt << "-"; - printRelocationTargetName(Obj, RE, Fmt); - break; - } - case MachO::X86_64_RELOC_TLV: - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "@TLV"; - if (IsPCRel) - Fmt << "P"; - break; - case MachO::X86_64_RELOC_SIGNED_1: - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "-1"; - break; - case MachO::X86_64_RELOC_SIGNED_2: - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "-2"; - break; - case MachO::X86_64_RELOC_SIGNED_4: - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "-4"; - break; - default: - printRelocationTargetName(Obj, RE, Fmt); - break; - } - // X86 and ARM share some relocation types in common. - } else if (Arch == Triple::x86 || Arch == Triple::arm || - Arch == Triple::ppc) { - // Generic relocation types... - switch (Type) { - case MachO::GENERIC_RELOC_PAIR: // prints no info - return Error::success(); - case MachO::GENERIC_RELOC_SECTDIFF: { - DataRefImpl RelNext = Rel; - Obj->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); - - // X86 sect diff's must be followed by a relocation of type - // GENERIC_RELOC_PAIR. - unsigned RType = Obj->getAnyRelocationType(RENext); - - if (RType != MachO::GENERIC_RELOC_PAIR) - report_error(Obj->getFileName(), "Expected GENERIC_RELOC_PAIR after " - "GENERIC_RELOC_SECTDIFF."); - - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "-"; - printRelocationTargetName(Obj, RENext, Fmt); - break; - } - } - - if (Arch == Triple::x86 || Arch == Triple::ppc) { - switch (Type) { - case MachO::GENERIC_RELOC_LOCAL_SECTDIFF: { - DataRefImpl RelNext = Rel; - Obj->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); - - // X86 sect diff's must be followed by a relocation of type - // GENERIC_RELOC_PAIR. - unsigned RType = Obj->getAnyRelocationType(RENext); - if (RType != MachO::GENERIC_RELOC_PAIR) - report_error(Obj->getFileName(), "Expected GENERIC_RELOC_PAIR after " - "GENERIC_RELOC_LOCAL_SECTDIFF."); - - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "-"; - printRelocationTargetName(Obj, RENext, Fmt); - break; - } - case MachO::GENERIC_RELOC_TLV: { - printRelocationTargetName(Obj, RE, Fmt); - Fmt << "@TLV"; - if (IsPCRel) - Fmt << "P"; - break; - } - default: - printRelocationTargetName(Obj, RE, Fmt); - } - } else { // ARM-specific relocations - switch (Type) { - case MachO::ARM_RELOC_HALF: - case MachO::ARM_RELOC_HALF_SECTDIFF: { - // Half relocations steal a bit from the length field to encode - // whether this is an upper16 or a lower16 relocation. - bool isUpper = (Obj->getAnyRelocationLength(RE) & 0x1) == 1; - - if (isUpper) - Fmt << ":upper16:("; - else - Fmt << ":lower16:("; - printRelocationTargetName(Obj, RE, Fmt); - - DataRefImpl RelNext = Rel; - Obj->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); - - // ARM half relocs must be followed by a relocation of type - // ARM_RELOC_PAIR. - unsigned RType = Obj->getAnyRelocationType(RENext); - if (RType != MachO::ARM_RELOC_PAIR) - report_error(Obj->getFileName(), "Expected ARM_RELOC_PAIR after " - "ARM_RELOC_HALF"); - - // NOTE: The half of the target virtual address is stashed in the - // address field of the secondary relocation, but we can't reverse - // engineer the constant offset from it without decoding the movw/movt - // instruction to find the other half in its immediate field. - - // ARM_RELOC_HALF_SECTDIFF encodes the second section in the - // symbol/section pointer of the follow-on relocation. - if (Type == MachO::ARM_RELOC_HALF_SECTDIFF) { - Fmt << "-"; - printRelocationTargetName(Obj, RENext, Fmt); - } - - Fmt << ")"; - break; - } - default: { - printRelocationTargetName(Obj, RE, Fmt); - } - } - } - } else - printRelocationTargetName(Obj, RE, Fmt); - - Fmt.flush(); - Result.append(FmtBuf.begin(), FmtBuf.end()); - return Error::success(); -} - -static void PrintIndirectSymbolTable(MachOObjectFile *O, bool verbose, - uint32_t n, uint32_t count, - uint32_t stride, uint64_t addr) { - MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); - uint32_t nindirectsyms = Dysymtab.nindirectsyms; - if (n > nindirectsyms) - outs() << " (entries start past the end of the indirect symbol " - "table) (reserved1 field greater than the table size)"; - else if (n + count > nindirectsyms) - outs() << " (entries extends past the end of the indirect symbol " - "table)"; - outs() << "\n"; - uint32_t cputype = O->getHeader().cputype; - if (cputype & MachO::CPU_ARCH_ABI64) - outs() << "address index"; - else - outs() << "address index"; - if (verbose) - outs() << " name\n"; - else - outs() << "\n"; - for (uint32_t j = 0; j < count && n + j < nindirectsyms; j++) { - if (cputype & MachO::CPU_ARCH_ABI64) - outs() << format("0x%016" PRIx64, addr + j * stride) << " "; - else - outs() << format("0x%08" PRIx32, (uint32_t)addr + j * stride) << " "; - MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); - uint32_t indirect_symbol = O->getIndirectSymbolTableEntry(Dysymtab, n + j); - if (indirect_symbol == MachO::INDIRECT_SYMBOL_LOCAL) { - outs() << "LOCAL\n"; - continue; - } - if (indirect_symbol == - (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) { - outs() << "LOCAL ABSOLUTE\n"; - continue; - } - if (indirect_symbol == MachO::INDIRECT_SYMBOL_ABS) { - outs() << "ABSOLUTE\n"; - continue; - } - outs() << format("%5u ", indirect_symbol); - if (verbose) { - MachO::symtab_command Symtab = O->getSymtabLoadCommand(); - if (indirect_symbol < Symtab.nsyms) { - symbol_iterator Sym = O->getSymbolByIndex(indirect_symbol); - SymbolRef Symbol = *Sym; - outs() << unwrapOrError(Symbol.getName(), O->getFileName()); - } else { - outs() << "?"; - } - } - outs() << "\n"; - } -} - -static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) { - for (const auto &Load : O->load_commands()) { - if (Load.C.cmd == MachO::LC_SEGMENT_64) { - MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - MachO::section_64 Sec = O->getSection64(Load, J); - uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; - if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || - section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || - section_type == MachO::S_SYMBOL_STUBS) { - uint32_t stride; - if (section_type == MachO::S_SYMBOL_STUBS) - stride = Sec.reserved2; - else - stride = 8; - if (stride == 0) { - outs() << "Can't print indirect symbols for (" << Sec.segname << "," - << Sec.sectname << ") " - << "(size of stubs in reserved2 field is zero)\n"; - continue; - } - uint32_t count = Sec.size / stride; - outs() << "Indirect symbols for (" << Sec.segname << "," - << Sec.sectname << ") " << count << " entries"; - uint32_t n = Sec.reserved1; - PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); - } - } - } else if (Load.C.cmd == MachO::LC_SEGMENT) { - MachO::segment_command Seg = O->getSegmentLoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - MachO::section Sec = O->getSection(Load, J); - uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; - if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || - section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || - section_type == MachO::S_SYMBOL_STUBS) { - uint32_t stride; - if (section_type == MachO::S_SYMBOL_STUBS) - stride = Sec.reserved2; - else - stride = 4; - if (stride == 0) { - outs() << "Can't print indirect symbols for (" << Sec.segname << "," - << Sec.sectname << ") " - << "(size of stubs in reserved2 field is zero)\n"; - continue; - } - uint32_t count = Sec.size / stride; - outs() << "Indirect symbols for (" << Sec.segname << "," - << Sec.sectname << ") " << count << " entries"; - uint32_t n = Sec.reserved1; - PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); - } - } - } - } -} - -static void PrintRType(const uint64_t cputype, const unsigned r_type) { - static char const *generic_r_types[] = { - "VANILLA ", "PAIR ", "SECTDIF ", "PBLAPTR ", "LOCSDIF ", "TLV ", - " 6 (?) ", " 7 (?) ", " 8 (?) ", " 9 (?) ", " 10 (?) ", " 11 (?) ", - " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " - }; - static char const *x86_64_r_types[] = { - "UNSIGND ", "SIGNED ", "BRANCH ", "GOT_LD ", "GOT ", "SUB ", - "SIGNED1 ", "SIGNED2 ", "SIGNED4 ", "TLV ", " 10 (?) ", " 11 (?) ", - " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " - }; - static char const *arm_r_types[] = { - "VANILLA ", "PAIR ", "SECTDIFF", "LOCSDIF ", "PBLAPTR ", - "BR24 ", "T_BR22 ", "T_BR32 ", "HALF ", "HALFDIF ", - " 10 (?) ", " 11 (?) ", " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " - }; - static char const *arm64_r_types[] = { - "UNSIGND ", "SUB ", "BR26 ", "PAGE21 ", "PAGOF12 ", - "GOTLDP ", "GOTLDPOF", "PTRTGOT ", "TLVLDP ", "TLVLDPOF", - "ADDEND ", " 11 (?) ", " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " - }; - - if (r_type > 0xf){ - outs() << format("%-7u", r_type) << " "; - return; - } - switch (cputype) { - case MachO::CPU_TYPE_I386: - outs() << generic_r_types[r_type]; - break; - case MachO::CPU_TYPE_X86_64: - outs() << x86_64_r_types[r_type]; - break; - case MachO::CPU_TYPE_ARM: - outs() << arm_r_types[r_type]; - break; - case MachO::CPU_TYPE_ARM64: - case MachO::CPU_TYPE_ARM64_32: - outs() << arm64_r_types[r_type]; - break; - default: - outs() << format("%-7u ", r_type); - } -} - -static void PrintRLength(const uint64_t cputype, const unsigned r_type, - const unsigned r_length, const bool previous_arm_half){ - if (cputype == MachO::CPU_TYPE_ARM && - (r_type == MachO::ARM_RELOC_HALF || - r_type == MachO::ARM_RELOC_HALF_SECTDIFF || previous_arm_half == true)) { - if ((r_length & 0x1) == 0) - outs() << "lo/"; - else - outs() << "hi/"; - if ((r_length & 0x1) == 0) - outs() << "arm "; - else - outs() << "thm "; - } else { - switch (r_length) { - case 0: - outs() << "byte "; - break; - case 1: - outs() << "word "; - break; - case 2: - outs() << "long "; - break; - case 3: - if (cputype == MachO::CPU_TYPE_X86_64) - outs() << "quad "; - else - outs() << format("?(%2d) ", r_length); - break; - default: - outs() << format("?(%2d) ", r_length); - } - } -} - -static void PrintRelocationEntries(const MachOObjectFile *O, - const relocation_iterator Begin, - const relocation_iterator End, - const uint64_t cputype, - const bool verbose) { - const MachO::symtab_command Symtab = O->getSymtabLoadCommand(); - bool previous_arm_half = false; - bool previous_sectdiff = false; - uint32_t sectdiff_r_type = 0; - - for (relocation_iterator Reloc = Begin; Reloc != End; ++Reloc) { - const DataRefImpl Rel = Reloc->getRawDataRefImpl(); - const MachO::any_relocation_info RE = O->getRelocation(Rel); - const unsigned r_type = O->getAnyRelocationType(RE); - const bool r_scattered = O->isRelocationScattered(RE); - const unsigned r_pcrel = O->getAnyRelocationPCRel(RE); - const unsigned r_length = O->getAnyRelocationLength(RE); - const unsigned r_address = O->getAnyRelocationAddress(RE); - const bool r_extern = (r_scattered ? false : - O->getPlainRelocationExternal(RE)); - const uint32_t r_value = (r_scattered ? - O->getScatteredRelocationValue(RE) : 0); - const unsigned r_symbolnum = (r_scattered ? 0 : - O->getPlainRelocationSymbolNum(RE)); - - if (r_scattered && cputype != MachO::CPU_TYPE_X86_64) { - if (verbose) { - // scattered: address - if ((cputype == MachO::CPU_TYPE_I386 && - r_type == MachO::GENERIC_RELOC_PAIR) || - (cputype == MachO::CPU_TYPE_ARM && r_type == MachO::ARM_RELOC_PAIR)) - outs() << " "; - else - outs() << format("%08x ", (unsigned int)r_address); - - // scattered: pcrel - if (r_pcrel) - outs() << "True "; - else - outs() << "False "; - - // scattered: length - PrintRLength(cputype, r_type, r_length, previous_arm_half); - - // scattered: extern & type - outs() << "n/a "; - PrintRType(cputype, r_type); - - // scattered: scattered & value - outs() << format("True 0x%08x", (unsigned int)r_value); - if (previous_sectdiff == false) { - if ((cputype == MachO::CPU_TYPE_ARM && - r_type == MachO::ARM_RELOC_PAIR)) - outs() << format(" half = 0x%04x ", (unsigned int)r_address); - } else if (cputype == MachO::CPU_TYPE_ARM && - sectdiff_r_type == MachO::ARM_RELOC_HALF_SECTDIFF) - outs() << format(" other_half = 0x%04x ", (unsigned int)r_address); - if ((cputype == MachO::CPU_TYPE_I386 && - (r_type == MachO::GENERIC_RELOC_SECTDIFF || - r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) || - (cputype == MachO::CPU_TYPE_ARM && - (sectdiff_r_type == MachO::ARM_RELOC_SECTDIFF || - sectdiff_r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF || - sectdiff_r_type == MachO::ARM_RELOC_HALF_SECTDIFF))) { - previous_sectdiff = true; - sectdiff_r_type = r_type; - } else { - previous_sectdiff = false; - sectdiff_r_type = 0; - } - if (cputype == MachO::CPU_TYPE_ARM && - (r_type == MachO::ARM_RELOC_HALF || - r_type == MachO::ARM_RELOC_HALF_SECTDIFF)) - previous_arm_half = true; - else - previous_arm_half = false; - outs() << "\n"; - } - else { - // scattered: address pcrel length extern type scattered value - outs() << format("%08x %1d %-2d n/a %-7d 1 0x%08x\n", - (unsigned int)r_address, r_pcrel, r_length, r_type, - (unsigned int)r_value); - } - } - else { - if (verbose) { - // plain: address - if (cputype == MachO::CPU_TYPE_ARM && r_type == MachO::ARM_RELOC_PAIR) - outs() << " "; - else - outs() << format("%08x ", (unsigned int)r_address); - - // plain: pcrel - if (r_pcrel) - outs() << "True "; - else - outs() << "False "; - - // plain: length - PrintRLength(cputype, r_type, r_length, previous_arm_half); - - if (r_extern) { - // plain: extern & type & scattered - outs() << "True "; - PrintRType(cputype, r_type); - outs() << "False "; - - // plain: symbolnum/value - if (r_symbolnum > Symtab.nsyms) - outs() << format("?(%d)\n", r_symbolnum); - else { - SymbolRef Symbol = *O->getSymbolByIndex(r_symbolnum); - Expected<StringRef> SymNameNext = Symbol.getName(); - const char *name = NULL; - if (SymNameNext) - name = SymNameNext->data(); - if (name == NULL) - outs() << format("?(%d)\n", r_symbolnum); - else - outs() << name << "\n"; - } - } - else { - // plain: extern & type & scattered - outs() << "False "; - PrintRType(cputype, r_type); - outs() << "False "; - - // plain: symbolnum/value - if (cputype == MachO::CPU_TYPE_ARM && r_type == MachO::ARM_RELOC_PAIR) - outs() << format("other_half = 0x%04x\n", (unsigned int)r_address); - else if ((cputype == MachO::CPU_TYPE_ARM64 || - cputype == MachO::CPU_TYPE_ARM64_32) && - r_type == MachO::ARM64_RELOC_ADDEND) - outs() << format("addend = 0x%06x\n", (unsigned int)r_symbolnum); - else { - outs() << format("%d ", r_symbolnum); - if (r_symbolnum == MachO::R_ABS) - outs() << "R_ABS\n"; - else { - // in this case, r_symbolnum is actually a 1-based section number - uint32_t nsects = O->section_end()->getRawDataRefImpl().d.a; - if (r_symbolnum > 0 && r_symbolnum <= nsects) { - object::DataRefImpl DRI; - DRI.d.a = r_symbolnum-1; - StringRef SegName = O->getSectionFinalSegmentName(DRI); - if (Expected<StringRef> NameOrErr = O->getSectionName(DRI)) - outs() << "(" << SegName << "," << *NameOrErr << ")\n"; - else - outs() << "(?,?)\n"; - } - else { - outs() << "(?,?)\n"; - } - } - } - } - if (cputype == MachO::CPU_TYPE_ARM && - (r_type == MachO::ARM_RELOC_HALF || - r_type == MachO::ARM_RELOC_HALF_SECTDIFF)) - previous_arm_half = true; - else - previous_arm_half = false; - } - else { - // plain: address pcrel length extern type scattered symbolnum/section - outs() << format("%08x %1d %-2d %1d %-7d 0 %d\n", - (unsigned int)r_address, r_pcrel, r_length, r_extern, - r_type, r_symbolnum); - } - } - } -} - -static void PrintRelocations(const MachOObjectFile *O, const bool verbose) { - const uint64_t cputype = O->getHeader().cputype; - const MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); - if (Dysymtab.nextrel != 0) { - outs() << "External relocation information " << Dysymtab.nextrel - << " entries"; - outs() << "\naddress pcrel length extern type scattered " - "symbolnum/value\n"; - PrintRelocationEntries(O, O->extrel_begin(), O->extrel_end(), cputype, - verbose); - } - if (Dysymtab.nlocrel != 0) { - outs() << format("Local relocation information %u entries", - Dysymtab.nlocrel); - outs() << "\naddress pcrel length extern type scattered " - "symbolnum/value\n"; - PrintRelocationEntries(O, O->locrel_begin(), O->locrel_end(), cputype, - verbose); - } - for (const auto &Load : O->load_commands()) { - if (Load.C.cmd == MachO::LC_SEGMENT_64) { - const MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - const MachO::section_64 Sec = O->getSection64(Load, J); - if (Sec.nreloc != 0) { - DataRefImpl DRI; - DRI.d.a = J; - const StringRef SegName = O->getSectionFinalSegmentName(DRI); - if (Expected<StringRef> NameOrErr = O->getSectionName(DRI)) - outs() << "Relocation information (" << SegName << "," << *NameOrErr - << format(") %u entries", Sec.nreloc); - else - outs() << "Relocation information (" << SegName << ",?) " - << format("%u entries", Sec.nreloc); - outs() << "\naddress pcrel length extern type scattered " - "symbolnum/value\n"; - PrintRelocationEntries(O, O->section_rel_begin(DRI), - O->section_rel_end(DRI), cputype, verbose); - } - } - } else if (Load.C.cmd == MachO::LC_SEGMENT) { - const MachO::segment_command Seg = O->getSegmentLoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - const MachO::section Sec = O->getSection(Load, J); - if (Sec.nreloc != 0) { - DataRefImpl DRI; - DRI.d.a = J; - const StringRef SegName = O->getSectionFinalSegmentName(DRI); - if (Expected<StringRef> NameOrErr = O->getSectionName(DRI)) - outs() << "Relocation information (" << SegName << "," << *NameOrErr - << format(") %u entries", Sec.nreloc); - else - outs() << "Relocation information (" << SegName << ",?) " - << format("%u entries", Sec.nreloc); - outs() << "\naddress pcrel length extern type scattered " - "symbolnum/value\n"; - PrintRelocationEntries(O, O->section_rel_begin(DRI), - O->section_rel_end(DRI), cputype, verbose); - } - } - } - } -} - -static void PrintDataInCodeTable(MachOObjectFile *O, bool verbose) { - MachO::linkedit_data_command DIC = O->getDataInCodeLoadCommand(); - uint32_t nentries = DIC.datasize / sizeof(struct MachO::data_in_code_entry); - outs() << "Data in code table (" << nentries << " entries)\n"; - outs() << "offset length kind\n"; - for (dice_iterator DI = O->begin_dices(), DE = O->end_dices(); DI != DE; - ++DI) { - uint32_t Offset; - DI->getOffset(Offset); - outs() << format("0x%08" PRIx32, Offset) << " "; - uint16_t Length; - DI->getLength(Length); - outs() << format("%6u", Length) << " "; - uint16_t Kind; - DI->getKind(Kind); - if (verbose) { - switch (Kind) { - case MachO::DICE_KIND_DATA: - outs() << "DATA"; - break; - case MachO::DICE_KIND_JUMP_TABLE8: - outs() << "JUMP_TABLE8"; - break; - case MachO::DICE_KIND_JUMP_TABLE16: - outs() << "JUMP_TABLE16"; - break; - case MachO::DICE_KIND_JUMP_TABLE32: - outs() << "JUMP_TABLE32"; - break; - case MachO::DICE_KIND_ABS_JUMP_TABLE32: - outs() << "ABS_JUMP_TABLE32"; - break; - default: - outs() << format("0x%04" PRIx32, Kind); - break; - } - } else - outs() << format("0x%04" PRIx32, Kind); - outs() << "\n"; - } -} - -static void PrintLinkOptHints(MachOObjectFile *O) { - MachO::linkedit_data_command LohLC = O->getLinkOptHintsLoadCommand(); - const char *loh = O->getData().substr(LohLC.dataoff, 1).data(); - uint32_t nloh = LohLC.datasize; - outs() << "Linker optimiztion hints (" << nloh << " total bytes)\n"; - for (uint32_t i = 0; i < nloh;) { - unsigned n; - uint64_t identifier = decodeULEB128((const uint8_t *)(loh + i), &n); - i += n; - outs() << " identifier " << identifier << " "; - if (i >= nloh) - return; - switch (identifier) { - case 1: - outs() << "AdrpAdrp\n"; - break; - case 2: - outs() << "AdrpLdr\n"; - break; - case 3: - outs() << "AdrpAddLdr\n"; - break; - case 4: - outs() << "AdrpLdrGotLdr\n"; - break; - case 5: - outs() << "AdrpAddStr\n"; - break; - case 6: - outs() << "AdrpLdrGotStr\n"; - break; - case 7: - outs() << "AdrpAdd\n"; - break; - case 8: - outs() << "AdrpLdrGot\n"; - break; - default: - outs() << "Unknown identifier value\n"; - break; - } - uint64_t narguments = decodeULEB128((const uint8_t *)(loh + i), &n); - i += n; - outs() << " narguments " << narguments << "\n"; - if (i >= nloh) - return; - - for (uint32_t j = 0; j < narguments; j++) { - uint64_t value = decodeULEB128((const uint8_t *)(loh + i), &n); - i += n; - outs() << "\tvalue " << format("0x%" PRIx64, value) << "\n"; - if (i >= nloh) - return; - } - } -} - -static void PrintDylibs(MachOObjectFile *O, bool JustId) { - unsigned Index = 0; - for (const auto &Load : O->load_commands()) { - if ((JustId && Load.C.cmd == MachO::LC_ID_DYLIB) || - (!JustId && (Load.C.cmd == MachO::LC_ID_DYLIB || - Load.C.cmd == MachO::LC_LOAD_DYLIB || - Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || - Load.C.cmd == MachO::LC_REEXPORT_DYLIB || - Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || - Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB))) { - MachO::dylib_command dl = O->getDylibIDLoadCommand(Load); - if (dl.dylib.name < dl.cmdsize) { - const char *p = (const char *)(Load.Ptr) + dl.dylib.name; - if (JustId) - outs() << p << "\n"; - else { - outs() << "\t" << p; - outs() << " (compatibility version " - << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." - << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." - << (dl.dylib.compatibility_version & 0xff) << ","; - outs() << " current version " - << ((dl.dylib.current_version >> 16) & 0xffff) << "." - << ((dl.dylib.current_version >> 8) & 0xff) << "." - << (dl.dylib.current_version & 0xff); - if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB) - outs() << ", weak"; - if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB) - outs() << ", reexport"; - if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) - outs() << ", upward"; - if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB) - outs() << ", lazy"; - outs() << ")\n"; - } - } else { - outs() << "\tBad offset (" << dl.dylib.name << ") for name of "; - if (Load.C.cmd == MachO::LC_ID_DYLIB) - outs() << "LC_ID_DYLIB "; - else if (Load.C.cmd == MachO::LC_LOAD_DYLIB) - outs() << "LC_LOAD_DYLIB "; - else if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB) - outs() << "LC_LOAD_WEAK_DYLIB "; - else if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB) - outs() << "LC_LAZY_LOAD_DYLIB "; - else if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB) - outs() << "LC_REEXPORT_DYLIB "; - else if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) - outs() << "LC_LOAD_UPWARD_DYLIB "; - else - outs() << "LC_??? "; - outs() << "command " << Index++ << "\n"; - } - } - } -} - -typedef DenseMap<uint64_t, StringRef> SymbolAddressMap; - -static void CreateSymbolAddressMap(MachOObjectFile *O, - SymbolAddressMap *AddrMap) { - // Create a map of symbol addresses to symbol names. - const StringRef FileName = O->getFileName(); - for (const SymbolRef &Symbol : O->symbols()) { - SymbolRef::Type ST = unwrapOrError(Symbol.getType(), FileName); - if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || - ST == SymbolRef::ST_Other) { - uint64_t Address = Symbol.getValue(); - StringRef SymName = unwrapOrError(Symbol.getName(), FileName); - if (!SymName.startswith(".objc")) - (*AddrMap)[Address] = SymName; - } - } -} - -// GuessSymbolName is passed the address of what might be a symbol and a -// pointer to the SymbolAddressMap. It returns the name of a symbol -// with that address or nullptr if no symbol is found with that address. -static const char *GuessSymbolName(uint64_t value, SymbolAddressMap *AddrMap) { - const char *SymbolName = nullptr; - // A DenseMap can't lookup up some values. - if (value != 0xffffffffffffffffULL && value != 0xfffffffffffffffeULL) { - StringRef name = AddrMap->lookup(value); - if (!name.empty()) - SymbolName = name.data(); - } - return SymbolName; -} - -static void DumpCstringChar(const char c) { - char p[2]; - p[0] = c; - p[1] = '\0'; - outs().write_escaped(p); -} - -static void DumpCstringSection(MachOObjectFile *O, const char *sect, - uint32_t sect_size, uint64_t sect_addr, - bool print_addresses) { - for (uint32_t i = 0; i < sect_size; i++) { - if (print_addresses) { - if (O->is64Bit()) - outs() << format("%016" PRIx64, sect_addr + i) << " "; - else - outs() << format("%08" PRIx64, sect_addr + i) << " "; - } - for (; i < sect_size && sect[i] != '\0'; i++) - DumpCstringChar(sect[i]); - if (i < sect_size && sect[i] == '\0') - outs() << "\n"; - } -} - -static void DumpLiteral4(uint32_t l, float f) { - outs() << format("0x%08" PRIx32, l); - if ((l & 0x7f800000) != 0x7f800000) - outs() << format(" (%.16e)\n", f); - else { - if (l == 0x7f800000) - outs() << " (+Infinity)\n"; - else if (l == 0xff800000) - outs() << " (-Infinity)\n"; - else if ((l & 0x00400000) == 0x00400000) - outs() << " (non-signaling Not-a-Number)\n"; - else - outs() << " (signaling Not-a-Number)\n"; - } -} - -static void DumpLiteral4Section(MachOObjectFile *O, const char *sect, - uint32_t sect_size, uint64_t sect_addr, - bool print_addresses) { - for (uint32_t i = 0; i < sect_size; i += sizeof(float)) { - if (print_addresses) { - if (O->is64Bit()) - outs() << format("%016" PRIx64, sect_addr + i) << " "; - else - outs() << format("%08" PRIx64, sect_addr + i) << " "; - } - float f; - memcpy(&f, sect + i, sizeof(float)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(f); - uint32_t l; - memcpy(&l, sect + i, sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(l); - DumpLiteral4(l, f); - } -} - -static void DumpLiteral8(MachOObjectFile *O, uint32_t l0, uint32_t l1, - double d) { - outs() << format("0x%08" PRIx32, l0) << " " << format("0x%08" PRIx32, l1); - uint32_t Hi, Lo; - Hi = (O->isLittleEndian()) ? l1 : l0; - Lo = (O->isLittleEndian()) ? l0 : l1; - - // Hi is the high word, so this is equivalent to if(isfinite(d)) - if ((Hi & 0x7ff00000) != 0x7ff00000) - outs() << format(" (%.16e)\n", d); - else { - if (Hi == 0x7ff00000 && Lo == 0) - outs() << " (+Infinity)\n"; - else if (Hi == 0xfff00000 && Lo == 0) - outs() << " (-Infinity)\n"; - else if ((Hi & 0x00080000) == 0x00080000) - outs() << " (non-signaling Not-a-Number)\n"; - else - outs() << " (signaling Not-a-Number)\n"; - } -} - -static void DumpLiteral8Section(MachOObjectFile *O, const char *sect, - uint32_t sect_size, uint64_t sect_addr, - bool print_addresses) { - for (uint32_t i = 0; i < sect_size; i += sizeof(double)) { - if (print_addresses) { - if (O->is64Bit()) - outs() << format("%016" PRIx64, sect_addr + i) << " "; - else - outs() << format("%08" PRIx64, sect_addr + i) << " "; - } - double d; - memcpy(&d, sect + i, sizeof(double)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(d); - uint32_t l0, l1; - memcpy(&l0, sect + i, sizeof(uint32_t)); - memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) { - sys::swapByteOrder(l0); - sys::swapByteOrder(l1); - } - DumpLiteral8(O, l0, l1, d); - } -} - -static void DumpLiteral16(uint32_t l0, uint32_t l1, uint32_t l2, uint32_t l3) { - outs() << format("0x%08" PRIx32, l0) << " "; - outs() << format("0x%08" PRIx32, l1) << " "; - outs() << format("0x%08" PRIx32, l2) << " "; - outs() << format("0x%08" PRIx32, l3) << "\n"; -} - -static void DumpLiteral16Section(MachOObjectFile *O, const char *sect, - uint32_t sect_size, uint64_t sect_addr, - bool print_addresses) { - for (uint32_t i = 0; i < sect_size; i += 16) { - if (print_addresses) { - if (O->is64Bit()) - outs() << format("%016" PRIx64, sect_addr + i) << " "; - else - outs() << format("%08" PRIx64, sect_addr + i) << " "; - } - uint32_t l0, l1, l2, l3; - memcpy(&l0, sect + i, sizeof(uint32_t)); - memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); - memcpy(&l2, sect + i + 2 * sizeof(uint32_t), sizeof(uint32_t)); - memcpy(&l3, sect + i + 3 * sizeof(uint32_t), sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) { - sys::swapByteOrder(l0); - sys::swapByteOrder(l1); - sys::swapByteOrder(l2); - sys::swapByteOrder(l3); - } - DumpLiteral16(l0, l1, l2, l3); - } -} - -static void DumpLiteralPointerSection(MachOObjectFile *O, - const SectionRef &Section, - const char *sect, uint32_t sect_size, - uint64_t sect_addr, - bool print_addresses) { - // Collect the literal sections in this Mach-O file. - std::vector<SectionRef> LiteralSections; - for (const SectionRef &Section : O->sections()) { - DataRefImpl Ref = Section.getRawDataRefImpl(); - uint32_t section_type; - if (O->is64Bit()) { - const MachO::section_64 Sec = O->getSection64(Ref); - section_type = Sec.flags & MachO::SECTION_TYPE; - } else { - const MachO::section Sec = O->getSection(Ref); - section_type = Sec.flags & MachO::SECTION_TYPE; - } - if (section_type == MachO::S_CSTRING_LITERALS || - section_type == MachO::S_4BYTE_LITERALS || - section_type == MachO::S_8BYTE_LITERALS || - section_type == MachO::S_16BYTE_LITERALS) - LiteralSections.push_back(Section); - } - - // Set the size of the literal pointer. - uint32_t lp_size = O->is64Bit() ? 8 : 4; - - // Collect the external relocation symbols for the literal pointers. - std::vector<std::pair<uint64_t, SymbolRef>> Relocs; - for (const RelocationRef &Reloc : Section.relocations()) { - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - Rel = Reloc.getRawDataRefImpl(); - RE = O->getRelocation(Rel); - isExtern = O->getPlainRelocationExternal(RE); - if (isExtern) { - uint64_t RelocOffset = Reloc.getOffset(); - symbol_iterator RelocSym = Reloc.getSymbol(); - Relocs.push_back(std::make_pair(RelocOffset, *RelocSym)); - } - } - array_pod_sort(Relocs.begin(), Relocs.end()); - - // Dump each literal pointer. - for (uint32_t i = 0; i < sect_size; i += lp_size) { - if (print_addresses) { - if (O->is64Bit()) - outs() << format("%016" PRIx64, sect_addr + i) << " "; - else - outs() << format("%08" PRIx64, sect_addr + i) << " "; - } - uint64_t lp; - if (O->is64Bit()) { - memcpy(&lp, sect + i, sizeof(uint64_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(lp); - } else { - uint32_t li; - memcpy(&li, sect + i, sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(li); - lp = li; - } - - // First look for an external relocation entry for this literal pointer. - auto Reloc = find_if(Relocs, [&](const std::pair<uint64_t, SymbolRef> &P) { - return P.first == i; - }); - if (Reloc != Relocs.end()) { - symbol_iterator RelocSym = Reloc->second; - StringRef SymName = unwrapOrError(RelocSym->getName(), O->getFileName()); - outs() << "external relocation entry for symbol:" << SymName << "\n"; - continue; - } - - // For local references see what the section the literal pointer points to. - auto Sect = find_if(LiteralSections, [&](const SectionRef &R) { - return lp >= R.getAddress() && lp < R.getAddress() + R.getSize(); - }); - if (Sect == LiteralSections.end()) { - outs() << format("0x%" PRIx64, lp) << " (not in a literal section)\n"; - continue; - } - - uint64_t SectAddress = Sect->getAddress(); - uint64_t SectSize = Sect->getSize(); - - StringRef SectName; - Sect->getName(SectName); - DataRefImpl Ref = Sect->getRawDataRefImpl(); - StringRef SegmentName = O->getSectionFinalSegmentName(Ref); - outs() << SegmentName << ":" << SectName << ":"; - - uint32_t section_type; - if (O->is64Bit()) { - const MachO::section_64 Sec = O->getSection64(Ref); - section_type = Sec.flags & MachO::SECTION_TYPE; - } else { - const MachO::section Sec = O->getSection(Ref); - section_type = Sec.flags & MachO::SECTION_TYPE; - } - - StringRef BytesStr = unwrapOrError(Sect->getContents(), O->getFileName()); - - const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); - - switch (section_type) { - case MachO::S_CSTRING_LITERALS: - for (uint64_t i = lp - SectAddress; i < SectSize && Contents[i] != '\0'; - i++) { - DumpCstringChar(Contents[i]); - } - outs() << "\n"; - break; - case MachO::S_4BYTE_LITERALS: - float f; - memcpy(&f, Contents + (lp - SectAddress), sizeof(float)); - uint32_t l; - memcpy(&l, Contents + (lp - SectAddress), sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) { - sys::swapByteOrder(f); - sys::swapByteOrder(l); - } - DumpLiteral4(l, f); - break; - case MachO::S_8BYTE_LITERALS: { - double d; - memcpy(&d, Contents + (lp - SectAddress), sizeof(double)); - uint32_t l0, l1; - memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); - memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), - sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) { - sys::swapByteOrder(f); - sys::swapByteOrder(l0); - sys::swapByteOrder(l1); - } - DumpLiteral8(O, l0, l1, d); - break; - } - case MachO::S_16BYTE_LITERALS: { - uint32_t l0, l1, l2, l3; - memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); - memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), - sizeof(uint32_t)); - memcpy(&l2, Contents + (lp - SectAddress) + 2 * sizeof(uint32_t), - sizeof(uint32_t)); - memcpy(&l3, Contents + (lp - SectAddress) + 3 * sizeof(uint32_t), - sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) { - sys::swapByteOrder(l0); - sys::swapByteOrder(l1); - sys::swapByteOrder(l2); - sys::swapByteOrder(l3); - } - DumpLiteral16(l0, l1, l2, l3); - break; - } - } - } -} - -static void DumpInitTermPointerSection(MachOObjectFile *O, - const SectionRef &Section, - const char *sect, - uint32_t sect_size, uint64_t sect_addr, - SymbolAddressMap *AddrMap, - bool verbose) { - uint32_t stride; - stride = (O->is64Bit()) ? sizeof(uint64_t) : sizeof(uint32_t); - - // Collect the external relocation symbols for the pointers. - std::vector<std::pair<uint64_t, SymbolRef>> Relocs; - for (const RelocationRef &Reloc : Section.relocations()) { - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - Rel = Reloc.getRawDataRefImpl(); - RE = O->getRelocation(Rel); - isExtern = O->getPlainRelocationExternal(RE); - if (isExtern) { - uint64_t RelocOffset = Reloc.getOffset(); - symbol_iterator RelocSym = Reloc.getSymbol(); - Relocs.push_back(std::make_pair(RelocOffset, *RelocSym)); - } - } - array_pod_sort(Relocs.begin(), Relocs.end()); - - for (uint32_t i = 0; i < sect_size; i += stride) { - const char *SymbolName = nullptr; - uint64_t p; - if (O->is64Bit()) { - outs() << format("0x%016" PRIx64, sect_addr + i * stride) << " "; - uint64_t pointer_value; - memcpy(&pointer_value, sect + i, stride); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(pointer_value); - outs() << format("0x%016" PRIx64, pointer_value); - p = pointer_value; - } else { - outs() << format("0x%08" PRIx64, sect_addr + i * stride) << " "; - uint32_t pointer_value; - memcpy(&pointer_value, sect + i, stride); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(pointer_value); - outs() << format("0x%08" PRIx32, pointer_value); - p = pointer_value; - } - if (verbose) { - // First look for an external relocation entry for this pointer. - auto Reloc = find_if(Relocs, [&](const std::pair<uint64_t, SymbolRef> &P) { - return P.first == i; - }); - if (Reloc != Relocs.end()) { - symbol_iterator RelocSym = Reloc->second; - outs() << " " << unwrapOrError(RelocSym->getName(), O->getFileName()); - } else { - SymbolName = GuessSymbolName(p, AddrMap); - if (SymbolName) - outs() << " " << SymbolName; - } - } - outs() << "\n"; - } -} - -static void DumpRawSectionContents(MachOObjectFile *O, const char *sect, - uint32_t size, uint64_t addr) { - uint32_t cputype = O->getHeader().cputype; - if (cputype == MachO::CPU_TYPE_I386 || cputype == MachO::CPU_TYPE_X86_64) { - uint32_t j; - for (uint32_t i = 0; i < size; i += j, addr += j) { - if (O->is64Bit()) - outs() << format("%016" PRIx64, addr) << "\t"; - else - outs() << format("%08" PRIx64, addr) << "\t"; - for (j = 0; j < 16 && i + j < size; j++) { - uint8_t byte_word = *(sect + i + j); - outs() << format("%02" PRIx32, (uint32_t)byte_word) << " "; - } - outs() << "\n"; - } - } else { - uint32_t j; - for (uint32_t i = 0; i < size; i += j, addr += j) { - if (O->is64Bit()) - outs() << format("%016" PRIx64, addr) << "\t"; - else - outs() << format("%08" PRIx64, addr) << "\t"; - for (j = 0; j < 4 * sizeof(int32_t) && i + j < size; - j += sizeof(int32_t)) { - if (i + j + sizeof(int32_t) <= size) { - uint32_t long_word; - memcpy(&long_word, sect + i + j, sizeof(int32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(long_word); - outs() << format("%08" PRIx32, long_word) << " "; - } else { - for (uint32_t k = 0; i + j + k < size; k++) { - uint8_t byte_word = *(sect + i + j + k); - outs() << format("%02" PRIx32, (uint32_t)byte_word) << " "; - } - } - } - outs() << "\n"; - } - } -} - -static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, - StringRef DisSegName, StringRef DisSectName); -static void DumpProtocolSection(MachOObjectFile *O, const char *sect, - uint32_t size, uint32_t addr); -#ifdef HAVE_LIBXAR -static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, - uint32_t size, bool verbose, - bool PrintXarHeader, bool PrintXarFileHeaders, - std::string XarMemberName); -#endif // defined(HAVE_LIBXAR) - -static void DumpSectionContents(StringRef Filename, MachOObjectFile *O, - bool verbose) { - SymbolAddressMap AddrMap; - if (verbose) - CreateSymbolAddressMap(O, &AddrMap); - - for (unsigned i = 0; i < FilterSections.size(); ++i) { - StringRef DumpSection = FilterSections[i]; - std::pair<StringRef, StringRef> DumpSegSectName; - DumpSegSectName = DumpSection.split(','); - StringRef DumpSegName, DumpSectName; - if (!DumpSegSectName.second.empty()) { - DumpSegName = DumpSegSectName.first; - DumpSectName = DumpSegSectName.second; - } else { - DumpSegName = ""; - DumpSectName = DumpSegSectName.first; - } - for (const SectionRef &Section : O->sections()) { - StringRef SectName; - Section.getName(SectName); - DataRefImpl Ref = Section.getRawDataRefImpl(); - StringRef SegName = O->getSectionFinalSegmentName(Ref); - if ((DumpSegName.empty() || SegName == DumpSegName) && - (SectName == DumpSectName)) { - - uint32_t section_flags; - if (O->is64Bit()) { - const MachO::section_64 Sec = O->getSection64(Ref); - section_flags = Sec.flags; - - } else { - const MachO::section Sec = O->getSection(Ref); - section_flags = Sec.flags; - } - uint32_t section_type = section_flags & MachO::SECTION_TYPE; - - StringRef BytesStr = - unwrapOrError(Section.getContents(), O->getFileName()); - const char *sect = reinterpret_cast<const char *>(BytesStr.data()); - uint32_t sect_size = BytesStr.size(); - uint64_t sect_addr = Section.getAddress(); - - outs() << "Contents of (" << SegName << "," << SectName - << ") section\n"; - - if (verbose) { - if ((section_flags & MachO::S_ATTR_PURE_INSTRUCTIONS) || - (section_flags & MachO::S_ATTR_SOME_INSTRUCTIONS)) { - DisassembleMachO(Filename, O, SegName, SectName); - continue; - } - if (SegName == "__TEXT" && SectName == "__info_plist") { - outs() << sect; - continue; - } - if (SegName == "__OBJC" && SectName == "__protocol") { - DumpProtocolSection(O, sect, sect_size, sect_addr); - continue; - } -#ifdef HAVE_LIBXAR - if (SegName == "__LLVM" && SectName == "__bundle") { - DumpBitcodeSection(O, sect, sect_size, verbose, !NoSymbolicOperands, - ArchiveHeaders, ""); - continue; - } -#endif // defined(HAVE_LIBXAR) - switch (section_type) { - case MachO::S_REGULAR: - DumpRawSectionContents(O, sect, sect_size, sect_addr); - break; - case MachO::S_ZEROFILL: - outs() << "zerofill section and has no contents in the file\n"; - break; - case MachO::S_CSTRING_LITERALS: - DumpCstringSection(O, sect, sect_size, sect_addr, !NoLeadingAddr); - break; - case MachO::S_4BYTE_LITERALS: - DumpLiteral4Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); - break; - case MachO::S_8BYTE_LITERALS: - DumpLiteral8Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); - break; - case MachO::S_16BYTE_LITERALS: - DumpLiteral16Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); - break; - case MachO::S_LITERAL_POINTERS: - DumpLiteralPointerSection(O, Section, sect, sect_size, sect_addr, - !NoLeadingAddr); - break; - case MachO::S_MOD_INIT_FUNC_POINTERS: - case MachO::S_MOD_TERM_FUNC_POINTERS: - DumpInitTermPointerSection(O, Section, sect, sect_size, sect_addr, - &AddrMap, verbose); - break; - default: - outs() << "Unknown section type (" - << format("0x%08" PRIx32, section_type) << ")\n"; - DumpRawSectionContents(O, sect, sect_size, sect_addr); - break; - } - } else { - if (section_type == MachO::S_ZEROFILL) - outs() << "zerofill section and has no contents in the file\n"; - else - DumpRawSectionContents(O, sect, sect_size, sect_addr); - } - } - } - } -} - -static void DumpInfoPlistSectionContents(StringRef Filename, - MachOObjectFile *O) { - for (const SectionRef &Section : O->sections()) { - StringRef SectName; - Section.getName(SectName); - DataRefImpl Ref = Section.getRawDataRefImpl(); - StringRef SegName = O->getSectionFinalSegmentName(Ref); - if (SegName == "__TEXT" && SectName == "__info_plist") { - if (!NoLeadingHeaders) - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - StringRef BytesStr = - unwrapOrError(Section.getContents(), O->getFileName()); - const char *sect = reinterpret_cast<const char *>(BytesStr.data()); - outs() << format("%.*s", BytesStr.size(), sect) << "\n"; - return; - } - } -} - -// checkMachOAndArchFlags() checks to see if the ObjectFile is a Mach-O file -// and if it is and there is a list of architecture flags is specified then -// check to make sure this Mach-O file is one of those architectures or all -// architectures were specified. If not then an error is generated and this -// routine returns false. Else it returns true. -static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) { - auto *MachO = dyn_cast<MachOObjectFile>(O); - - if (!MachO || ArchAll || ArchFlags.empty()) - return true; - - MachO::mach_header H; - MachO::mach_header_64 H_64; - Triple T; - const char *McpuDefault, *ArchFlag; - if (MachO->is64Bit()) { - H_64 = MachO->MachOObjectFile::getHeader64(); - T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype, - &McpuDefault, &ArchFlag); - } else { - H = MachO->MachOObjectFile::getHeader(); - T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype, - &McpuDefault, &ArchFlag); - } - const std::string ArchFlagName(ArchFlag); - if (none_of(ArchFlags, [&](const std::string &Name) { - return Name == ArchFlagName; - })) { - WithColor::error(errs(), "llvm-objdump") - << Filename << ": no architecture specified.\n"; - return false; - } - return true; -} - -static void printObjcMetaData(MachOObjectFile *O, bool verbose); - -// ProcessMachO() is passed a single opened Mach-O file, which may be an -// archive member and or in a slice of a universal file. It prints the -// the file name and header info and then processes it according to the -// command line options. -static void ProcessMachO(StringRef Name, MachOObjectFile *MachOOF, - StringRef ArchiveMemberName = StringRef(), - StringRef ArchitectureName = StringRef()) { - // If we are doing some processing here on the Mach-O file print the header - // info. And don't print it otherwise like in the case of printing the - // UniversalHeaders or ArchiveHeaders. - if (Disassemble || Relocations || PrivateHeaders || ExportsTrie || Rebase || - Bind || SymbolTable || LazyBind || WeakBind || IndirectSymbols || - DataInCode || LinkOptHints || DylibsUsed || DylibId || ObjcMetaData || - (!FilterSections.empty())) { - if (!NoLeadingHeaders) { - outs() << Name; - if (!ArchiveMemberName.empty()) - outs() << '(' << ArchiveMemberName << ')'; - if (!ArchitectureName.empty()) - outs() << " (architecture " << ArchitectureName << ")"; - outs() << ":\n"; - } - } - // To use the report_error() form with an ArchiveName and FileName set - // these up based on what is passed for Name and ArchiveMemberName. - StringRef ArchiveName; - StringRef FileName; - if (!ArchiveMemberName.empty()) { - ArchiveName = Name; - FileName = ArchiveMemberName; - } else { - ArchiveName = StringRef(); - FileName = Name; - } - - // If we need the symbol table to do the operation then check it here to - // produce a good error message as to where the Mach-O file comes from in - // the error message. - if (Disassemble || IndirectSymbols || !FilterSections.empty() || UnwindInfo) - if (Error Err = MachOOF->checkSymbolTable()) - report_error(std::move(Err), ArchiveName, FileName, ArchitectureName); - - if (DisassembleAll) { - for (const SectionRef &Section : MachOOF->sections()) { - StringRef SectName; - Section.getName(SectName); - if (SectName.equals("__text")) { - DataRefImpl Ref = Section.getRawDataRefImpl(); - StringRef SegName = MachOOF->getSectionFinalSegmentName(Ref); - DisassembleMachO(FileName, MachOOF, SegName, SectName); - } - } - } - else if (Disassemble) { - if (MachOOF->getHeader().filetype == MachO::MH_KEXT_BUNDLE && - MachOOF->getHeader().cputype == MachO::CPU_TYPE_ARM64) - DisassembleMachO(FileName, MachOOF, "__TEXT_EXEC", "__text"); - else - DisassembleMachO(FileName, MachOOF, "__TEXT", "__text"); - } - if (IndirectSymbols) - PrintIndirectSymbols(MachOOF, !NonVerbose); - if (DataInCode) - PrintDataInCodeTable(MachOOF, !NonVerbose); - if (LinkOptHints) - PrintLinkOptHints(MachOOF); - if (Relocations) - PrintRelocations(MachOOF, !NonVerbose); - if (SectionHeaders) - printSectionHeaders(MachOOF); - if (SectionContents) - printSectionContents(MachOOF); - if (!FilterSections.empty()) - DumpSectionContents(FileName, MachOOF, !NonVerbose); - if (InfoPlist) - DumpInfoPlistSectionContents(FileName, MachOOF); - if (DylibsUsed) - PrintDylibs(MachOOF, false); - if (DylibId) - PrintDylibs(MachOOF, true); - if (SymbolTable) - printSymbolTable(MachOOF, ArchiveName, ArchitectureName); - if (UnwindInfo) - printMachOUnwindInfo(MachOOF); - if (PrivateHeaders) { - printMachOFileHeader(MachOOF); - printMachOLoadCommands(MachOOF); - } - if (FirstPrivateHeader) - printMachOFileHeader(MachOOF); - if (ObjcMetaData) - printObjcMetaData(MachOOF, !NonVerbose); - if (ExportsTrie) - printExportsTrie(MachOOF); - if (Rebase) - printRebaseTable(MachOOF); - if (Bind) - printBindTable(MachOOF); - if (LazyBind) - printLazyBindTable(MachOOF); - if (WeakBind) - printWeakBindTable(MachOOF); - - if (DwarfDumpType != DIDT_Null) { - std::unique_ptr<DIContext> DICtx = DWARFContext::create(*MachOOF); - // Dump the complete DWARF structure. - DIDumpOptions DumpOpts; - DumpOpts.DumpType = DwarfDumpType; - DICtx->dump(outs(), DumpOpts); - } -} - -// printUnknownCPUType() helps print_fat_headers for unknown CPU's. -static void printUnknownCPUType(uint32_t cputype, uint32_t cpusubtype) { - outs() << " cputype (" << cputype << ")\n"; - outs() << " cpusubtype (" << cpusubtype << ")\n"; -} - -// printCPUType() helps print_fat_headers by printing the cputype and -// pusubtype (symbolically for the one's it knows about). -static void printCPUType(uint32_t cputype, uint32_t cpusubtype) { - switch (cputype) { - case MachO::CPU_TYPE_I386: - switch (cpusubtype) { - case MachO::CPU_SUBTYPE_I386_ALL: - outs() << " cputype CPU_TYPE_I386\n"; - outs() << " cpusubtype CPU_SUBTYPE_I386_ALL\n"; - break; - default: - printUnknownCPUType(cputype, cpusubtype); - break; - } - break; - case MachO::CPU_TYPE_X86_64: - switch (cpusubtype) { - case MachO::CPU_SUBTYPE_X86_64_ALL: - outs() << " cputype CPU_TYPE_X86_64\n"; - outs() << " cpusubtype CPU_SUBTYPE_X86_64_ALL\n"; - break; - case MachO::CPU_SUBTYPE_X86_64_H: - outs() << " cputype CPU_TYPE_X86_64\n"; - outs() << " cpusubtype CPU_SUBTYPE_X86_64_H\n"; - break; - default: - printUnknownCPUType(cputype, cpusubtype); - break; - } - break; - case MachO::CPU_TYPE_ARM: - switch (cpusubtype) { - case MachO::CPU_SUBTYPE_ARM_ALL: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_ALL\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V4T: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V4T\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V5TEJ: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V5TEJ\n"; - break; - case MachO::CPU_SUBTYPE_ARM_XSCALE: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_XSCALE\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V6: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V6M: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V7: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V7EM: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V7K: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V7M: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n"; - break; - case MachO::CPU_SUBTYPE_ARM_V7S: - outs() << " cputype CPU_TYPE_ARM\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n"; - break; - default: - printUnknownCPUType(cputype, cpusubtype); - break; - } - break; - case MachO::CPU_TYPE_ARM64: - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_ARM64_ALL: - outs() << " cputype CPU_TYPE_ARM64\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM64_ALL\n"; - break; - case MachO::CPU_SUBTYPE_ARM64E: - outs() << " cputype CPU_TYPE_ARM64\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM64E\n"; - break; - default: - printUnknownCPUType(cputype, cpusubtype); - break; - } - break; - case MachO::CPU_TYPE_ARM64_32: - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_ARM64_32_V8: - outs() << " cputype CPU_TYPE_ARM64_32\n"; - outs() << " cpusubtype CPU_SUBTYPE_ARM64_32_V8\n"; - break; - default: - printUnknownCPUType(cputype, cpusubtype); - break; - } - break; - default: - printUnknownCPUType(cputype, cpusubtype); - break; - } -} - -static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB, - bool verbose) { - outs() << "Fat headers\n"; - if (verbose) { - if (UB->getMagic() == MachO::FAT_MAGIC) - outs() << "fat_magic FAT_MAGIC\n"; - else // UB->getMagic() == MachO::FAT_MAGIC_64 - outs() << "fat_magic FAT_MAGIC_64\n"; - } else - outs() << "fat_magic " << format("0x%" PRIx32, MachO::FAT_MAGIC) << "\n"; - - uint32_t nfat_arch = UB->getNumberOfObjects(); - StringRef Buf = UB->getData(); - uint64_t size = Buf.size(); - uint64_t big_size = sizeof(struct MachO::fat_header) + - nfat_arch * sizeof(struct MachO::fat_arch); - outs() << "nfat_arch " << UB->getNumberOfObjects(); - if (nfat_arch == 0) - outs() << " (malformed, contains zero architecture types)\n"; - else if (big_size > size) - outs() << " (malformed, architectures past end of file)\n"; - else - outs() << "\n"; - - for (uint32_t i = 0; i < nfat_arch; ++i) { - MachOUniversalBinary::ObjectForArch OFA(UB, i); - uint32_t cputype = OFA.getCPUType(); - uint32_t cpusubtype = OFA.getCPUSubType(); - outs() << "architecture "; - for (uint32_t j = 0; i != 0 && j <= i - 1; j++) { - MachOUniversalBinary::ObjectForArch other_OFA(UB, j); - uint32_t other_cputype = other_OFA.getCPUType(); - uint32_t other_cpusubtype = other_OFA.getCPUSubType(); - if (cputype != 0 && cpusubtype != 0 && cputype == other_cputype && - (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) == - (other_cpusubtype & ~MachO::CPU_SUBTYPE_MASK)) { - outs() << "(illegal duplicate architecture) "; - break; - } - } - if (verbose) { - outs() << OFA.getArchFlagName() << "\n"; - printCPUType(cputype, cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - } else { - outs() << i << "\n"; - outs() << " cputype " << cputype << "\n"; - outs() << " cpusubtype " << (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) - << "\n"; - } - if (verbose && - (cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) - outs() << " capabilities CPU_SUBTYPE_LIB64\n"; - else - outs() << " capabilities " - << format("0x%" PRIx32, - (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24) << "\n"; - outs() << " offset " << OFA.getOffset(); - if (OFA.getOffset() > size) - outs() << " (past end of file)"; - if (OFA.getOffset() % (1 << OFA.getAlign()) != 0) - outs() << " (not aligned on it's alignment (2^" << OFA.getAlign() << ")"; - outs() << "\n"; - outs() << " size " << OFA.getSize(); - big_size = OFA.getOffset() + OFA.getSize(); - if (big_size > size) - outs() << " (past end of file)"; - outs() << "\n"; - outs() << " align 2^" << OFA.getAlign() << " (" << (1 << OFA.getAlign()) - << ")\n"; - } -} - -static void printArchiveChild(StringRef Filename, const Archive::Child &C, - bool verbose, bool print_offset, - StringRef ArchitectureName = StringRef()) { - if (print_offset) - outs() << C.getChildOffset() << "\t"; - sys::fs::perms Mode = - unwrapOrError(C.getAccessMode(), Filename, C, ArchitectureName); - if (verbose) { - // FIXME: this first dash, "-", is for (Mode & S_IFMT) == S_IFREG. - // But there is nothing in sys::fs::perms for S_IFMT or S_IFREG. - outs() << "-"; - outs() << ((Mode & sys::fs::owner_read) ? "r" : "-"); - outs() << ((Mode & sys::fs::owner_write) ? "w" : "-"); - outs() << ((Mode & sys::fs::owner_exe) ? "x" : "-"); - outs() << ((Mode & sys::fs::group_read) ? "r" : "-"); - outs() << ((Mode & sys::fs::group_write) ? "w" : "-"); - outs() << ((Mode & sys::fs::group_exe) ? "x" : "-"); - outs() << ((Mode & sys::fs::others_read) ? "r" : "-"); - outs() << ((Mode & sys::fs::others_write) ? "w" : "-"); - outs() << ((Mode & sys::fs::others_exe) ? "x" : "-"); - } else { - outs() << format("0%o ", Mode); - } - - outs() << format( - "%3d/%-3d %5" PRId64 " ", - unwrapOrError(C.getUID(), Filename, C, ArchitectureName), - unwrapOrError(C.getGID(), Filename, C, ArchitectureName), - unwrapOrError(C.getRawSize(), Filename, C, ArchitectureName)); - - StringRef RawLastModified = C.getRawLastModified(); - if (verbose) { - unsigned Seconds; - if (RawLastModified.getAsInteger(10, Seconds)) - outs() << "(date: \"" << RawLastModified - << "\" contains non-decimal chars) "; - else { - // Since cime(3) returns a 26 character string of the form: - // "Sun Sep 16 01:03:52 1973\n\0" - // just print 24 characters. - time_t t = Seconds; - outs() << format("%.24s ", ctime(&t)); - } - } else { - outs() << RawLastModified << " "; - } - - if (verbose) { - Expected<StringRef> NameOrErr = C.getName(); - if (!NameOrErr) { - consumeError(NameOrErr.takeError()); - outs() << unwrapOrError(C.getRawName(), Filename, C, ArchitectureName) - << "\n"; - } else { - StringRef Name = NameOrErr.get(); - outs() << Name << "\n"; - } - } else { - outs() << unwrapOrError(C.getRawName(), Filename, C, ArchitectureName) - << "\n"; - } -} - -static void printArchiveHeaders(StringRef Filename, Archive *A, bool verbose, - bool print_offset, - StringRef ArchitectureName = StringRef()) { - Error Err = Error::success(); - for (const auto &C : A->children(Err, false)) - printArchiveChild(Filename, C, verbose, print_offset, ArchitectureName); - - if (Err) - report_error(std::move(Err), StringRef(), Filename, ArchitectureName); -} - -static bool ValidateArchFlags() { - // Check for -arch all and verifiy the -arch flags are valid. - for (unsigned i = 0; i < ArchFlags.size(); ++i) { - if (ArchFlags[i] == "all") { - ArchAll = true; - } else { - if (!MachOObjectFile::isValidArch(ArchFlags[i])) { - WithColor::error(errs(), "llvm-objdump") - << "unknown architecture named '" + ArchFlags[i] + - "'for the -arch option\n"; - return false; - } - } - } - return true; -} - -// ParseInputMachO() parses the named Mach-O file in Filename and handles the -// -arch flags selecting just those slices as specified by them and also parses -// archive files. Then for each individual Mach-O file ProcessMachO() is -// called to process the file based on the command line options. -void parseInputMachO(StringRef Filename) { - if (!ValidateArchFlags()) - return; - - // Attempt to open the binary. - Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename); - if (!BinaryOrErr) { - if (Error E = isNotObjectErrorInvalidFileType(BinaryOrErr.takeError())) - report_error(std::move(E), Filename); - else - outs() << Filename << ": is not an object file\n"; - return; - } - Binary &Bin = *BinaryOrErr.get().getBinary(); - - if (Archive *A = dyn_cast<Archive>(&Bin)) { - outs() << "Archive : " << Filename << "\n"; - if (ArchiveHeaders) - printArchiveHeaders(Filename, A, !NonVerbose, ArchiveMemberOffsets); - - Error Err = Error::success(); - for (auto &C : A->children(Err)) { - Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); - if (!ChildOrErr) { - if (Error E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) - report_error(std::move(E), Filename, C); - continue; - } - if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { - if (!checkMachOAndArchFlags(O, Filename)) - return; - ProcessMachO(Filename, O, O->getFileName()); - } - } - if (Err) - report_error(std::move(Err), Filename); - return; - } - if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) { - parseInputMachO(UB); - return; - } - if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) { - if (!checkMachOAndArchFlags(O, Filename)) - return; - if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) - ProcessMachO(Filename, MachOOF); - else - WithColor::error(errs(), "llvm-objdump") - << Filename << "': " - << "object is not a Mach-O file type.\n"; - return; - } - llvm_unreachable("Input object can't be invalid at this point"); -} - -void parseInputMachO(MachOUniversalBinary *UB) { - if (!ValidateArchFlags()) - return; - - auto Filename = UB->getFileName(); - - if (UniversalHeaders) - printMachOUniversalHeaders(UB, !NonVerbose); - - // If we have a list of architecture flags specified dump only those. - if (!ArchAll && !ArchFlags.empty()) { - // Look for a slice in the universal binary that matches each ArchFlag. - bool ArchFound; - for (unsigned i = 0; i < ArchFlags.size(); ++i) { - ArchFound = false; - for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), - E = UB->end_objects(); - I != E; ++I) { - if (ArchFlags[i] == I->getArchFlagName()) { - ArchFound = true; - Expected<std::unique_ptr<ObjectFile>> ObjOrErr = - I->getAsObjectFile(); - std::string ArchitectureName = ""; - if (ArchFlags.size() > 1) - ArchitectureName = I->getArchFlagName(); - if (ObjOrErr) { - ObjectFile &O = *ObjOrErr.get(); - if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) - ProcessMachO(Filename, MachOOF, "", ArchitectureName); - } else if (Error E = isNotObjectErrorInvalidFileType( - ObjOrErr.takeError())) { - report_error(std::move(E), Filename, StringRef(), ArchitectureName); - continue; - } else if (Expected<std::unique_ptr<Archive>> AOrErr = - I->getAsArchive()) { - std::unique_ptr<Archive> &A = *AOrErr; - outs() << "Archive : " << Filename; - if (!ArchitectureName.empty()) - outs() << " (architecture " << ArchitectureName << ")"; - outs() << "\n"; - if (ArchiveHeaders) - printArchiveHeaders(Filename, A.get(), !NonVerbose, - ArchiveMemberOffsets, ArchitectureName); - Error Err = Error::success(); - for (auto &C : A->children(Err)) { - Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); - if (!ChildOrErr) { - if (Error E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) - report_error(std::move(E), Filename, C, ArchitectureName); - continue; - } - if (MachOObjectFile *O = - dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) - ProcessMachO(Filename, O, O->getFileName(), ArchitectureName); - } - if (Err) - report_error(std::move(Err), Filename); - } else { - consumeError(AOrErr.takeError()); - error("Mach-O universal file: " + Filename + " for " + - "architecture " + StringRef(I->getArchFlagName()) + - " is not a Mach-O file or an archive file"); - } - } - } - if (!ArchFound) { - WithColor::error(errs(), "llvm-objdump") - << "file: " + Filename + " does not contain " - << "architecture: " + ArchFlags[i] + "\n"; - return; - } - } - return; - } - // No architecture flags were specified so if this contains a slice that - // matches the host architecture dump only that. - if (!ArchAll) { - for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), - E = UB->end_objects(); - I != E; ++I) { - if (MachOObjectFile::getHostArch().getArchName() == - I->getArchFlagName()) { - Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); - std::string ArchiveName; - ArchiveName.clear(); - if (ObjOrErr) { - ObjectFile &O = *ObjOrErr.get(); - if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) - ProcessMachO(Filename, MachOOF); - } else if (Error E = - isNotObjectErrorInvalidFileType(ObjOrErr.takeError())) { - report_error(std::move(E), Filename); - } else if (Expected<std::unique_ptr<Archive>> AOrErr = - I->getAsArchive()) { - std::unique_ptr<Archive> &A = *AOrErr; - outs() << "Archive : " << Filename << "\n"; - if (ArchiveHeaders) - printArchiveHeaders(Filename, A.get(), !NonVerbose, - ArchiveMemberOffsets); - Error Err = Error::success(); - for (auto &C : A->children(Err)) { - Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); - if (!ChildOrErr) { - if (Error E = - isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) - report_error(std::move(E), Filename, C); - continue; - } - if (MachOObjectFile *O = - dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) - ProcessMachO(Filename, O, O->getFileName()); - } - if (Err) - report_error(std::move(Err), Filename); - } else { - consumeError(AOrErr.takeError()); - error("Mach-O universal file: " + Filename + " for architecture " + - StringRef(I->getArchFlagName()) + - " is not a Mach-O file or an archive file"); - } - return; - } - } - } - // Either all architectures have been specified or none have been specified - // and this does not contain the host architecture so dump all the slices. - bool moreThanOneArch = UB->getNumberOfObjects() > 1; - for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), - E = UB->end_objects(); - I != E; ++I) { - Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); - std::string ArchitectureName = ""; - if (moreThanOneArch) - ArchitectureName = I->getArchFlagName(); - if (ObjOrErr) { - ObjectFile &Obj = *ObjOrErr.get(); - if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj)) - ProcessMachO(Filename, MachOOF, "", ArchitectureName); - } else if (Error E = - isNotObjectErrorInvalidFileType(ObjOrErr.takeError())) { - report_error(std::move(E), StringRef(), Filename, ArchitectureName); - } else if (Expected<std::unique_ptr<Archive>> AOrErr = I->getAsArchive()) { - std::unique_ptr<Archive> &A = *AOrErr; - outs() << "Archive : " << Filename; - if (!ArchitectureName.empty()) - outs() << " (architecture " << ArchitectureName << ")"; - outs() << "\n"; - if (ArchiveHeaders) - printArchiveHeaders(Filename, A.get(), !NonVerbose, - ArchiveMemberOffsets, ArchitectureName); - Error Err = Error::success(); - for (auto &C : A->children(Err)) { - Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); - if (!ChildOrErr) { - if (Error E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) - report_error(std::move(E), Filename, C, ArchitectureName); - continue; - } - if (MachOObjectFile *O = - dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { - if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O)) - ProcessMachO(Filename, MachOOF, MachOOF->getFileName(), - ArchitectureName); - } - } - if (Err) - report_error(std::move(Err), Filename); - } else { - consumeError(AOrErr.takeError()); - error("Mach-O universal file: " + Filename + " for architecture " + - StringRef(I->getArchFlagName()) + - " is not a Mach-O file or an archive file"); - } - } -} - -// The block of info used by the Symbolizer call backs. -struct DisassembleInfo { - DisassembleInfo(MachOObjectFile *O, SymbolAddressMap *AddrMap, - std::vector<SectionRef> *Sections, bool verbose) - : verbose(verbose), O(O), AddrMap(AddrMap), Sections(Sections) {} - bool verbose; - MachOObjectFile *O; - SectionRef S; - SymbolAddressMap *AddrMap; - std::vector<SectionRef> *Sections; - const char *class_name = nullptr; - const char *selector_name = nullptr; - std::unique_ptr<char[]> method = nullptr; - char *demangled_name = nullptr; - uint64_t adrp_addr = 0; - uint32_t adrp_inst = 0; - std::unique_ptr<SymbolAddressMap> bindtable; - uint32_t depth = 0; -}; - -// SymbolizerGetOpInfo() is the operand information call back function. -// This is called to get the symbolic information for operand(s) of an -// instruction when it is being done. This routine does this from -// the relocation information, symbol table, etc. That block of information -// is a pointer to the struct DisassembleInfo that was passed when the -// disassembler context was created and passed to back to here when -// called back by the disassembler for instruction operands that could have -// relocation information. The address of the instruction containing operand is -// at the Pc parameter. The immediate value the operand has is passed in -// op_info->Value and is at Offset past the start of the instruction and has a -// byte Size of 1, 2 or 4. The symbolc information is returned in TagBuf is the -// LLVMOpInfo1 struct defined in the header "llvm-c/Disassembler.h" as symbol -// names and addends of the symbolic expression to add for the operand. The -// value of TagType is currently 1 (for the LLVMOpInfo1 struct). If symbolic -// information is returned then this function returns 1 else it returns 0. -static int SymbolizerGetOpInfo(void *DisInfo, uint64_t Pc, uint64_t Offset, - uint64_t Size, int TagType, void *TagBuf) { - struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; - struct LLVMOpInfo1 *op_info = (struct LLVMOpInfo1 *)TagBuf; - uint64_t value = op_info->Value; - - // Make sure all fields returned are zero if we don't set them. - memset((void *)op_info, '\0', sizeof(struct LLVMOpInfo1)); - op_info->Value = value; - - // If the TagType is not the value 1 which it code knows about or if no - // verbose symbolic information is wanted then just return 0, indicating no - // information is being returned. - if (TagType != 1 || !info->verbose) - return 0; - - unsigned int Arch = info->O->getArch(); - if (Arch == Triple::x86) { - if (Size != 1 && Size != 2 && Size != 4 && Size != 0) - return 0; - if (info->O->getHeader().filetype != MachO::MH_OBJECT) { - // TODO: - // Search the external relocation entries of a fully linked image - // (if any) for an entry that matches this segment offset. - // uint32_t seg_offset = (Pc + Offset); - return 0; - } - // In MH_OBJECT filetypes search the section's relocation entries (if any) - // for an entry for this section offset. - uint32_t sect_addr = info->S.getAddress(); - uint32_t sect_offset = (Pc + Offset) - sect_addr; - bool reloc_found = false; - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - SymbolRef Symbol; - bool r_scattered = false; - uint32_t r_value, pair_r_value, r_type; - for (const RelocationRef &Reloc : info->S.relocations()) { - uint64_t RelocOffset = Reloc.getOffset(); - if (RelocOffset == sect_offset) { - Rel = Reloc.getRawDataRefImpl(); - RE = info->O->getRelocation(Rel); - r_type = info->O->getAnyRelocationType(RE); - r_scattered = info->O->isRelocationScattered(RE); - if (r_scattered) { - r_value = info->O->getScatteredRelocationValue(RE); - if (r_type == MachO::GENERIC_RELOC_SECTDIFF || - r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF) { - DataRefImpl RelNext = Rel; - info->O->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext; - RENext = info->O->getRelocation(RelNext); - if (info->O->isRelocationScattered(RENext)) - pair_r_value = info->O->getScatteredRelocationValue(RENext); - else - return 0; - } - } else { - isExtern = info->O->getPlainRelocationExternal(RE); - if (isExtern) { - symbol_iterator RelocSym = Reloc.getSymbol(); - Symbol = *RelocSym; - } - } - reloc_found = true; - break; - } - } - if (reloc_found && isExtern) { - op_info->AddSymbol.Present = 1; - op_info->AddSymbol.Name = - unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); - // For i386 extern relocation entries the value in the instruction is - // the offset from the symbol, and value is already set in op_info->Value. - return 1; - } - if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF || - r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) { - const char *add = GuessSymbolName(r_value, info->AddrMap); - const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); - uint32_t offset = value - (r_value - pair_r_value); - op_info->AddSymbol.Present = 1; - if (add != nullptr) - op_info->AddSymbol.Name = add; - else - op_info->AddSymbol.Value = r_value; - op_info->SubtractSymbol.Present = 1; - if (sub != nullptr) - op_info->SubtractSymbol.Name = sub; - else - op_info->SubtractSymbol.Value = pair_r_value; - op_info->Value = offset; - return 1; - } - return 0; - } - if (Arch == Triple::x86_64) { - if (Size != 1 && Size != 2 && Size != 4 && Size != 0) - return 0; - // For non MH_OBJECT types, like MH_KEXT_BUNDLE, Search the external - // relocation entries of a linked image (if any) for an entry that matches - // this segment offset. - if (info->O->getHeader().filetype != MachO::MH_OBJECT) { - uint64_t seg_offset = Pc + Offset; - bool reloc_found = false; - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - SymbolRef Symbol; - for (const RelocationRef &Reloc : info->O->external_relocations()) { - uint64_t RelocOffset = Reloc.getOffset(); - if (RelocOffset == seg_offset) { - Rel = Reloc.getRawDataRefImpl(); - RE = info->O->getRelocation(Rel); - // external relocation entries should always be external. - isExtern = info->O->getPlainRelocationExternal(RE); - if (isExtern) { - symbol_iterator RelocSym = Reloc.getSymbol(); - Symbol = *RelocSym; - } - reloc_found = true; - break; - } - } - if (reloc_found && isExtern) { - // The Value passed in will be adjusted by the Pc if the instruction - // adds the Pc. But for x86_64 external relocation entries the Value - // is the offset from the external symbol. - if (info->O->getAnyRelocationPCRel(RE)) - op_info->Value -= Pc + Offset + Size; - const char *name = - unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); - op_info->AddSymbol.Present = 1; - op_info->AddSymbol.Name = name; - return 1; - } - return 0; - } - // In MH_OBJECT filetypes search the section's relocation entries (if any) - // for an entry for this section offset. - uint64_t sect_addr = info->S.getAddress(); - uint64_t sect_offset = (Pc + Offset) - sect_addr; - bool reloc_found = false; - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - SymbolRef Symbol; - for (const RelocationRef &Reloc : info->S.relocations()) { - uint64_t RelocOffset = Reloc.getOffset(); - if (RelocOffset == sect_offset) { - Rel = Reloc.getRawDataRefImpl(); - RE = info->O->getRelocation(Rel); - // NOTE: Scattered relocations don't exist on x86_64. - isExtern = info->O->getPlainRelocationExternal(RE); - if (isExtern) { - symbol_iterator RelocSym = Reloc.getSymbol(); - Symbol = *RelocSym; - } - reloc_found = true; - break; - } - } - if (reloc_found && isExtern) { - // The Value passed in will be adjusted by the Pc if the instruction - // adds the Pc. But for x86_64 external relocation entries the Value - // is the offset from the external symbol. - if (info->O->getAnyRelocationPCRel(RE)) - op_info->Value -= Pc + Offset + Size; - const char *name = - unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); - unsigned Type = info->O->getAnyRelocationType(RE); - if (Type == MachO::X86_64_RELOC_SUBTRACTOR) { - DataRefImpl RelNext = Rel; - info->O->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); - unsigned TypeNext = info->O->getAnyRelocationType(RENext); - bool isExternNext = info->O->getPlainRelocationExternal(RENext); - unsigned SymbolNum = info->O->getPlainRelocationSymbolNum(RENext); - if (TypeNext == MachO::X86_64_RELOC_UNSIGNED && isExternNext) { - op_info->SubtractSymbol.Present = 1; - op_info->SubtractSymbol.Name = name; - symbol_iterator RelocSymNext = info->O->getSymbolByIndex(SymbolNum); - Symbol = *RelocSymNext; - name = unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); - } - } - // TODO: add the VariantKinds to op_info->VariantKind for relocation types - // like: X86_64_RELOC_TLV, X86_64_RELOC_GOT_LOAD and X86_64_RELOC_GOT. - op_info->AddSymbol.Present = 1; - op_info->AddSymbol.Name = name; - return 1; - } - return 0; - } - if (Arch == Triple::arm) { - if (Offset != 0 || (Size != 4 && Size != 2)) - return 0; - if (info->O->getHeader().filetype != MachO::MH_OBJECT) { - // TODO: - // Search the external relocation entries of a fully linked image - // (if any) for an entry that matches this segment offset. - // uint32_t seg_offset = (Pc + Offset); - return 0; - } - // In MH_OBJECT filetypes search the section's relocation entries (if any) - // for an entry for this section offset. - uint32_t sect_addr = info->S.getAddress(); - uint32_t sect_offset = (Pc + Offset) - sect_addr; - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - SymbolRef Symbol; - bool r_scattered = false; - uint32_t r_value, pair_r_value, r_type, r_length, other_half; - auto Reloc = - find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { - uint64_t RelocOffset = Reloc.getOffset(); - return RelocOffset == sect_offset; - }); - - if (Reloc == info->S.relocations().end()) - return 0; - - Rel = Reloc->getRawDataRefImpl(); - RE = info->O->getRelocation(Rel); - r_length = info->O->getAnyRelocationLength(RE); - r_scattered = info->O->isRelocationScattered(RE); - if (r_scattered) { - r_value = info->O->getScatteredRelocationValue(RE); - r_type = info->O->getScatteredRelocationType(RE); - } else { - r_type = info->O->getAnyRelocationType(RE); - isExtern = info->O->getPlainRelocationExternal(RE); - if (isExtern) { - symbol_iterator RelocSym = Reloc->getSymbol(); - Symbol = *RelocSym; - } - } - if (r_type == MachO::ARM_RELOC_HALF || - r_type == MachO::ARM_RELOC_SECTDIFF || - r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF || - r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { - DataRefImpl RelNext = Rel; - info->O->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext; - RENext = info->O->getRelocation(RelNext); - other_half = info->O->getAnyRelocationAddress(RENext) & 0xffff; - if (info->O->isRelocationScattered(RENext)) - pair_r_value = info->O->getScatteredRelocationValue(RENext); - } - - if (isExtern) { - const char *name = - unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); - op_info->AddSymbol.Present = 1; - op_info->AddSymbol.Name = name; - switch (r_type) { - case MachO::ARM_RELOC_HALF: - if ((r_length & 0x1) == 1) { - op_info->Value = value << 16 | other_half; - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16; - } else { - op_info->Value = other_half << 16 | value; - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16; - } - break; - default: - break; - } - return 1; - } - // If we have a branch that is not an external relocation entry then - // return 0 so the code in tryAddingSymbolicOperand() can use the - // SymbolLookUp call back with the branch target address to look up the - // symbol and possibility add an annotation for a symbol stub. - if (isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 || - r_type == MachO::ARM_THUMB_RELOC_BR22)) - return 0; - - uint32_t offset = 0; - if (r_type == MachO::ARM_RELOC_HALF || - r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { - if ((r_length & 0x1) == 1) - value = value << 16 | other_half; - else - value = other_half << 16 | value; - } - if (r_scattered && (r_type != MachO::ARM_RELOC_HALF && - r_type != MachO::ARM_RELOC_HALF_SECTDIFF)) { - offset = value - r_value; - value = r_value; - } - - if (r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { - if ((r_length & 0x1) == 1) - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16; - else - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16; - const char *add = GuessSymbolName(r_value, info->AddrMap); - const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); - int32_t offset = value - (r_value - pair_r_value); - op_info->AddSymbol.Present = 1; - if (add != nullptr) - op_info->AddSymbol.Name = add; - else - op_info->AddSymbol.Value = r_value; - op_info->SubtractSymbol.Present = 1; - if (sub != nullptr) - op_info->SubtractSymbol.Name = sub; - else - op_info->SubtractSymbol.Value = pair_r_value; - op_info->Value = offset; - return 1; - } - - op_info->AddSymbol.Present = 1; - op_info->Value = offset; - if (r_type == MachO::ARM_RELOC_HALF) { - if ((r_length & 0x1) == 1) - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16; - else - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16; - } - const char *add = GuessSymbolName(value, info->AddrMap); - if (add != nullptr) { - op_info->AddSymbol.Name = add; - return 1; - } - op_info->AddSymbol.Value = value; - return 1; - } - if (Arch == Triple::aarch64) { - if (Offset != 0 || Size != 4) - return 0; - if (info->O->getHeader().filetype != MachO::MH_OBJECT) { - // TODO: - // Search the external relocation entries of a fully linked image - // (if any) for an entry that matches this segment offset. - // uint64_t seg_offset = (Pc + Offset); - return 0; - } - // In MH_OBJECT filetypes search the section's relocation entries (if any) - // for an entry for this section offset. - uint64_t sect_addr = info->S.getAddress(); - uint64_t sect_offset = (Pc + Offset) - sect_addr; - auto Reloc = - find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { - uint64_t RelocOffset = Reloc.getOffset(); - return RelocOffset == sect_offset; - }); - - if (Reloc == info->S.relocations().end()) - return 0; - - DataRefImpl Rel = Reloc->getRawDataRefImpl(); - MachO::any_relocation_info RE = info->O->getRelocation(Rel); - uint32_t r_type = info->O->getAnyRelocationType(RE); - if (r_type == MachO::ARM64_RELOC_ADDEND) { - DataRefImpl RelNext = Rel; - info->O->moveRelocationNext(RelNext); - MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); - if (value == 0) { - value = info->O->getPlainRelocationSymbolNum(RENext); - op_info->Value = value; - } - } - // NOTE: Scattered relocations don't exist on arm64. - if (!info->O->getPlainRelocationExternal(RE)) - return 0; - const char *name = - unwrapOrError(Reloc->getSymbol()->getName(), info->O->getFileName()) - .data(); - op_info->AddSymbol.Present = 1; - op_info->AddSymbol.Name = name; - - switch (r_type) { - case MachO::ARM64_RELOC_PAGE21: - /* @page */ - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGE; - break; - case MachO::ARM64_RELOC_PAGEOFF12: - /* @pageoff */ - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGEOFF; - break; - case MachO::ARM64_RELOC_GOT_LOAD_PAGE21: - /* @gotpage */ - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGE; - break; - case MachO::ARM64_RELOC_GOT_LOAD_PAGEOFF12: - /* @gotpageoff */ - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF; - break; - case MachO::ARM64_RELOC_TLVP_LOAD_PAGE21: - /* @tvlppage is not implemented in llvm-mc */ - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVP; - break; - case MachO::ARM64_RELOC_TLVP_LOAD_PAGEOFF12: - /* @tvlppageoff is not implemented in llvm-mc */ - op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVOFF; - break; - default: - case MachO::ARM64_RELOC_BRANCH26: - op_info->VariantKind = LLVMDisassembler_VariantKind_None; - break; - } - return 1; - } - return 0; -} - -// GuessCstringPointer is passed the address of what might be a pointer to a -// literal string in a cstring section. If that address is in a cstring section -// it returns a pointer to that string. Else it returns nullptr. -static const char *GuessCstringPointer(uint64_t ReferenceValue, - struct DisassembleInfo *info) { - for (const auto &Load : info->O->load_commands()) { - if (Load.C.cmd == MachO::LC_SEGMENT_64) { - MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - MachO::section_64 Sec = info->O->getSection64(Load, J); - uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; - if (section_type == MachO::S_CSTRING_LITERALS && - ReferenceValue >= Sec.addr && - ReferenceValue < Sec.addr + Sec.size) { - uint64_t sect_offset = ReferenceValue - Sec.addr; - uint64_t object_offset = Sec.offset + sect_offset; - StringRef MachOContents = info->O->getData(); - uint64_t object_size = MachOContents.size(); - const char *object_addr = (const char *)MachOContents.data(); - if (object_offset < object_size) { - const char *name = object_addr + object_offset; - return name; - } else { - return nullptr; - } - } - } - } else if (Load.C.cmd == MachO::LC_SEGMENT) { - MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - MachO::section Sec = info->O->getSection(Load, J); - uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; - if (section_type == MachO::S_CSTRING_LITERALS && - ReferenceValue >= Sec.addr && - ReferenceValue < Sec.addr + Sec.size) { - uint64_t sect_offset = ReferenceValue - Sec.addr; - uint64_t object_offset = Sec.offset + sect_offset; - StringRef MachOContents = info->O->getData(); - uint64_t object_size = MachOContents.size(); - const char *object_addr = (const char *)MachOContents.data(); - if (object_offset < object_size) { - const char *name = object_addr + object_offset; - return name; - } else { - return nullptr; - } - } - } - } - } - return nullptr; -} - -// GuessIndirectSymbol returns the name of the indirect symbol for the -// ReferenceValue passed in or nullptr. This is used when ReferenceValue maybe -// an address of a symbol stub or a lazy or non-lazy pointer to associate the -// symbol name being referenced by the stub or pointer. -static const char *GuessIndirectSymbol(uint64_t ReferenceValue, - struct DisassembleInfo *info) { - MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand(); - MachO::symtab_command Symtab = info->O->getSymtabLoadCommand(); - for (const auto &Load : info->O->load_commands()) { - if (Load.C.cmd == MachO::LC_SEGMENT_64) { - MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - MachO::section_64 Sec = info->O->getSection64(Load, J); - uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; - if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || - section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || - section_type == MachO::S_SYMBOL_STUBS) && - ReferenceValue >= Sec.addr && - ReferenceValue < Sec.addr + Sec.size) { - uint32_t stride; - if (section_type == MachO::S_SYMBOL_STUBS) - stride = Sec.reserved2; - else - stride = 8; - if (stride == 0) - return nullptr; - uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; - if (index < Dysymtab.nindirectsyms) { - uint32_t indirect_symbol = - info->O->getIndirectSymbolTableEntry(Dysymtab, index); - if (indirect_symbol < Symtab.nsyms) { - symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); - return unwrapOrError(Sym->getName(), info->O->getFileName()) - .data(); - } - } - } - } - } else if (Load.C.cmd == MachO::LC_SEGMENT) { - MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - MachO::section Sec = info->O->getSection(Load, J); - uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; - if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || - section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || - section_type == MachO::S_SYMBOL_STUBS) && - ReferenceValue >= Sec.addr && - ReferenceValue < Sec.addr + Sec.size) { - uint32_t stride; - if (section_type == MachO::S_SYMBOL_STUBS) - stride = Sec.reserved2; - else - stride = 4; - if (stride == 0) - return nullptr; - uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; - if (index < Dysymtab.nindirectsyms) { - uint32_t indirect_symbol = - info->O->getIndirectSymbolTableEntry(Dysymtab, index); - if (indirect_symbol < Symtab.nsyms) { - symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); - return unwrapOrError(Sym->getName(), info->O->getFileName()) - .data(); - } - } - } - } - } - } - return nullptr; -} - -// method_reference() is called passing it the ReferenceName that might be -// a reference it to an Objective-C method call. If so then it allocates and -// assembles a method call string with the values last seen and saved in -// the DisassembleInfo's class_name and selector_name fields. This is saved -// into the method field of the info and any previous string is free'ed. -// Then the class_name field in the info is set to nullptr. The method call -// string is set into ReferenceName and ReferenceType is set to -// LLVMDisassembler_ReferenceType_Out_Objc_Message. If this not a method call -// then both ReferenceType and ReferenceName are left unchanged. -static void method_reference(struct DisassembleInfo *info, - uint64_t *ReferenceType, - const char **ReferenceName) { - unsigned int Arch = info->O->getArch(); - if (*ReferenceName != nullptr) { - if (strcmp(*ReferenceName, "_objc_msgSend") == 0) { - if (info->selector_name != nullptr) { - if (info->class_name != nullptr) { - info->method = llvm::make_unique<char[]>( - 5 + strlen(info->class_name) + strlen(info->selector_name)); - char *method = info->method.get(); - if (method != nullptr) { - strcpy(method, "+["); - strcat(method, info->class_name); - strcat(method, " "); - strcat(method, info->selector_name); - strcat(method, "]"); - *ReferenceName = method; - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message; - } - } else { - info->method = - llvm::make_unique<char[]>(9 + strlen(info->selector_name)); - char *method = info->method.get(); - if (method != nullptr) { - if (Arch == Triple::x86_64) - strcpy(method, "-[%rdi "); - else if (Arch == Triple::aarch64) - strcpy(method, "-[x0 "); - else - strcpy(method, "-[r? "); - strcat(method, info->selector_name); - strcat(method, "]"); - *ReferenceName = method; - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message; - } - } - info->class_name = nullptr; - } - } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) { - if (info->selector_name != nullptr) { - info->method = - llvm::make_unique<char[]>(17 + strlen(info->selector_name)); - char *method = info->method.get(); - if (method != nullptr) { - if (Arch == Triple::x86_64) - strcpy(method, "-[[%rdi super] "); - else if (Arch == Triple::aarch64) - strcpy(method, "-[[x0 super] "); - else - strcpy(method, "-[[r? super] "); - strcat(method, info->selector_name); - strcat(method, "]"); - *ReferenceName = method; - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message; - } - info->class_name = nullptr; - } - } - } -} - -// GuessPointerPointer() is passed the address of what might be a pointer to -// a reference to an Objective-C class, selector, message ref or cfstring. -// If so the value of the pointer is returned and one of the booleans are set -// to true. If not zero is returned and all the booleans are set to false. -static uint64_t GuessPointerPointer(uint64_t ReferenceValue, - struct DisassembleInfo *info, - bool &classref, bool &selref, bool &msgref, - bool &cfstring) { - classref = false; - selref = false; - msgref = false; - cfstring = false; - for (const auto &Load : info->O->load_commands()) { - if (Load.C.cmd == MachO::LC_SEGMENT_64) { - MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); - for (unsigned J = 0; J < Seg.nsects; ++J) { - MachO::section_64 Sec = info->O->getSection64(Load, J); - if ((strncmp(Sec.sectname, "__objc_selrefs", 16) == 0 || - strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || - strncmp(Sec.sectname, "__objc_superrefs", 16) == 0 || - strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 || - strncmp(Sec.sectname, "__cfstring", 16) == 0) && - ReferenceValue >= Sec.addr && - ReferenceValue < Sec.addr + Sec.size) { - uint64_t sect_offset = ReferenceValue - Sec.addr; - uint64_t object_offset = Sec.offset + sect_offset; - StringRef MachOContents = info->O->getData(); - uint64_t object_size = MachOContents.size(); - const char *object_addr = (const char *)MachOContents.data(); - if (object_offset < object_size) { - uint64_t pointer_value; - memcpy(&pointer_value, object_addr + object_offset, - sizeof(uint64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(pointer_value); - if (strncmp(Sec.sectname, "__objc_selrefs", 16) == 0) - selref = true; - else if (strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || - strncmp(Sec.sectname, "__objc_superrefs", 16) == 0) - classref = true; - else if (strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 && - ReferenceValue + 8 < Sec.addr + Sec.size) { - msgref = true; - memcpy(&pointer_value, object_addr + object_offset + 8, - sizeof(uint64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(pointer_value); - } else if (strncmp(Sec.sectname, "__cfstring", 16) == 0) - cfstring = true; - return pointer_value; - } else { - return 0; - } - } - } - } - // TODO: Look for LC_SEGMENT for 32-bit Mach-O files. - } - return 0; -} - -// get_pointer_64 returns a pointer to the bytes in the object file at the -// Address from a section in the Mach-O file. And indirectly returns the -// offset into the section, number of bytes left in the section past the offset -// and which section is was being referenced. If the Address is not in a -// section nullptr is returned. -static const char *get_pointer_64(uint64_t Address, uint32_t &offset, - uint32_t &left, SectionRef &S, - DisassembleInfo *info, - bool objc_only = false) { - offset = 0; - left = 0; - S = SectionRef(); - for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) { - uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress(); - uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize(); - if (SectSize == 0) - continue; - if (objc_only) { - StringRef SectName; - ((*(info->Sections))[SectIdx]).getName(SectName); - DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl(); - StringRef SegName = info->O->getSectionFinalSegmentName(Ref); - if (SegName != "__OBJC" && SectName != "__cstring") - continue; - } - if (Address >= SectAddress && Address < SectAddress + SectSize) { - S = (*(info->Sections))[SectIdx]; - offset = Address - SectAddress; - left = SectSize - offset; - StringRef SectContents = unwrapOrError( - ((*(info->Sections))[SectIdx]).getContents(), info->O->getFileName()); - return SectContents.data() + offset; - } - } - return nullptr; -} - -static const char *get_pointer_32(uint32_t Address, uint32_t &offset, - uint32_t &left, SectionRef &S, - DisassembleInfo *info, - bool objc_only = false) { - return get_pointer_64(Address, offset, left, S, info, objc_only); -} - -// get_symbol_64() returns the name of a symbol (or nullptr) and the address of -// the symbol indirectly through n_value. Based on the relocation information -// for the specified section offset in the specified section reference. -// If no relocation information is found and a non-zero ReferenceValue for the -// symbol is passed, look up that address in the info's AddrMap. -static const char *get_symbol_64(uint32_t sect_offset, SectionRef S, - DisassembleInfo *info, uint64_t &n_value, - uint64_t ReferenceValue = 0) { - n_value = 0; - if (!info->verbose) - return nullptr; - - // See if there is an external relocation entry at the sect_offset. - bool reloc_found = false; - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - SymbolRef Symbol; - for (const RelocationRef &Reloc : S.relocations()) { - uint64_t RelocOffset = Reloc.getOffset(); - if (RelocOffset == sect_offset) { - Rel = Reloc.getRawDataRefImpl(); - RE = info->O->getRelocation(Rel); - if (info->O->isRelocationScattered(RE)) - continue; - isExtern = info->O->getPlainRelocationExternal(RE); - if (isExtern) { - symbol_iterator RelocSym = Reloc.getSymbol(); - Symbol = *RelocSym; - } - reloc_found = true; - break; - } - } - // If there is an external relocation entry for a symbol in this section - // at this section_offset then use that symbol's value for the n_value - // and return its name. - const char *SymbolName = nullptr; - if (reloc_found && isExtern) { - n_value = Symbol.getValue(); - StringRef Name = unwrapOrError(Symbol.getName(), info->O->getFileName()); - if (!Name.empty()) { - SymbolName = Name.data(); - return SymbolName; - } - } - - // TODO: For fully linked images, look through the external relocation - // entries off the dynamic symtab command. For these the r_offset is from the - // start of the first writeable segment in the Mach-O file. So the offset - // to this section from that segment is passed to this routine by the caller, - // as the database_offset. Which is the difference of the section's starting - // address and the first writable segment. - // - // NOTE: need add passing the database_offset to this routine. - - // We did not find an external relocation entry so look up the ReferenceValue - // as an address of a symbol and if found return that symbol's name. - SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); - - return SymbolName; -} - -static const char *get_symbol_32(uint32_t sect_offset, SectionRef S, - DisassembleInfo *info, - uint32_t ReferenceValue) { - uint64_t n_value64; - return get_symbol_64(sect_offset, S, info, n_value64, ReferenceValue); -} - -// These are structs in the Objective-C meta data and read to produce the -// comments for disassembly. While these are part of the ABI they are no -// public defintions. So the are here not in include/llvm/BinaryFormat/MachO.h -// . - -// The cfstring object in a 64-bit Mach-O file. -struct cfstring64_t { - uint64_t isa; // class64_t * (64-bit pointer) - uint64_t flags; // flag bits - uint64_t characters; // char * (64-bit pointer) - uint64_t length; // number of non-NULL characters in above -}; - -// The class object in a 64-bit Mach-O file. -struct class64_t { - uint64_t isa; // class64_t * (64-bit pointer) - uint64_t superclass; // class64_t * (64-bit pointer) - uint64_t cache; // Cache (64-bit pointer) - uint64_t vtable; // IMP * (64-bit pointer) - uint64_t data; // class_ro64_t * (64-bit pointer) -}; - -struct class32_t { - uint32_t isa; /* class32_t * (32-bit pointer) */ - uint32_t superclass; /* class32_t * (32-bit pointer) */ - uint32_t cache; /* Cache (32-bit pointer) */ - uint32_t vtable; /* IMP * (32-bit pointer) */ - uint32_t data; /* class_ro32_t * (32-bit pointer) */ -}; - -struct class_ro64_t { - uint32_t flags; - uint32_t instanceStart; - uint32_t instanceSize; - uint32_t reserved; - uint64_t ivarLayout; // const uint8_t * (64-bit pointer) - uint64_t name; // const char * (64-bit pointer) - uint64_t baseMethods; // const method_list_t * (64-bit pointer) - uint64_t baseProtocols; // const protocol_list_t * (64-bit pointer) - uint64_t ivars; // const ivar_list_t * (64-bit pointer) - uint64_t weakIvarLayout; // const uint8_t * (64-bit pointer) - uint64_t baseProperties; // const struct objc_property_list (64-bit pointer) -}; - -struct class_ro32_t { - uint32_t flags; - uint32_t instanceStart; - uint32_t instanceSize; - uint32_t ivarLayout; /* const uint8_t * (32-bit pointer) */ - uint32_t name; /* const char * (32-bit pointer) */ - uint32_t baseMethods; /* const method_list_t * (32-bit pointer) */ - uint32_t baseProtocols; /* const protocol_list_t * (32-bit pointer) */ - uint32_t ivars; /* const ivar_list_t * (32-bit pointer) */ - uint32_t weakIvarLayout; /* const uint8_t * (32-bit pointer) */ - uint32_t baseProperties; /* const struct objc_property_list * - (32-bit pointer) */ -}; - -/* Values for class_ro{64,32}_t->flags */ -#define RO_META (1 << 0) -#define RO_ROOT (1 << 1) -#define RO_HAS_CXX_STRUCTORS (1 << 2) - -struct method_list64_t { - uint32_t entsize; - uint32_t count; - /* struct method64_t first; These structures follow inline */ -}; - -struct method_list32_t { - uint32_t entsize; - uint32_t count; - /* struct method32_t first; These structures follow inline */ -}; - -struct method64_t { - uint64_t name; /* SEL (64-bit pointer) */ - uint64_t types; /* const char * (64-bit pointer) */ - uint64_t imp; /* IMP (64-bit pointer) */ -}; - -struct method32_t { - uint32_t name; /* SEL (32-bit pointer) */ - uint32_t types; /* const char * (32-bit pointer) */ - uint32_t imp; /* IMP (32-bit pointer) */ -}; - -struct protocol_list64_t { - uint64_t count; /* uintptr_t (a 64-bit value) */ - /* struct protocol64_t * list[0]; These pointers follow inline */ -}; - -struct protocol_list32_t { - uint32_t count; /* uintptr_t (a 32-bit value) */ - /* struct protocol32_t * list[0]; These pointers follow inline */ -}; - -struct protocol64_t { - uint64_t isa; /* id * (64-bit pointer) */ - uint64_t name; /* const char * (64-bit pointer) */ - uint64_t protocols; /* struct protocol_list64_t * - (64-bit pointer) */ - uint64_t instanceMethods; /* method_list_t * (64-bit pointer) */ - uint64_t classMethods; /* method_list_t * (64-bit pointer) */ - uint64_t optionalInstanceMethods; /* method_list_t * (64-bit pointer) */ - uint64_t optionalClassMethods; /* method_list_t * (64-bit pointer) */ - uint64_t instanceProperties; /* struct objc_property_list * - (64-bit pointer) */ -}; - -struct protocol32_t { - uint32_t isa; /* id * (32-bit pointer) */ - uint32_t name; /* const char * (32-bit pointer) */ - uint32_t protocols; /* struct protocol_list_t * - (32-bit pointer) */ - uint32_t instanceMethods; /* method_list_t * (32-bit pointer) */ - uint32_t classMethods; /* method_list_t * (32-bit pointer) */ - uint32_t optionalInstanceMethods; /* method_list_t * (32-bit pointer) */ - uint32_t optionalClassMethods; /* method_list_t * (32-bit pointer) */ - uint32_t instanceProperties; /* struct objc_property_list * - (32-bit pointer) */ -}; - -struct ivar_list64_t { - uint32_t entsize; - uint32_t count; - /* struct ivar64_t first; These structures follow inline */ -}; - -struct ivar_list32_t { - uint32_t entsize; - uint32_t count; - /* struct ivar32_t first; These structures follow inline */ -}; - -struct ivar64_t { - uint64_t offset; /* uintptr_t * (64-bit pointer) */ - uint64_t name; /* const char * (64-bit pointer) */ - uint64_t type; /* const char * (64-bit pointer) */ - uint32_t alignment; - uint32_t size; -}; - -struct ivar32_t { - uint32_t offset; /* uintptr_t * (32-bit pointer) */ - uint32_t name; /* const char * (32-bit pointer) */ - uint32_t type; /* const char * (32-bit pointer) */ - uint32_t alignment; - uint32_t size; -}; - -struct objc_property_list64 { - uint32_t entsize; - uint32_t count; - /* struct objc_property64 first; These structures follow inline */ -}; - -struct objc_property_list32 { - uint32_t entsize; - uint32_t count; - /* struct objc_property32 first; These structures follow inline */ -}; - -struct objc_property64 { - uint64_t name; /* const char * (64-bit pointer) */ - uint64_t attributes; /* const char * (64-bit pointer) */ -}; - -struct objc_property32 { - uint32_t name; /* const char * (32-bit pointer) */ - uint32_t attributes; /* const char * (32-bit pointer) */ -}; - -struct category64_t { - uint64_t name; /* const char * (64-bit pointer) */ - uint64_t cls; /* struct class_t * (64-bit pointer) */ - uint64_t instanceMethods; /* struct method_list_t * (64-bit pointer) */ - uint64_t classMethods; /* struct method_list_t * (64-bit pointer) */ - uint64_t protocols; /* struct protocol_list_t * (64-bit pointer) */ - uint64_t instanceProperties; /* struct objc_property_list * - (64-bit pointer) */ -}; - -struct category32_t { - uint32_t name; /* const char * (32-bit pointer) */ - uint32_t cls; /* struct class_t * (32-bit pointer) */ - uint32_t instanceMethods; /* struct method_list_t * (32-bit pointer) */ - uint32_t classMethods; /* struct method_list_t * (32-bit pointer) */ - uint32_t protocols; /* struct protocol_list_t * (32-bit pointer) */ - uint32_t instanceProperties; /* struct objc_property_list * - (32-bit pointer) */ -}; - -struct objc_image_info64 { - uint32_t version; - uint32_t flags; -}; -struct objc_image_info32 { - uint32_t version; - uint32_t flags; -}; -struct imageInfo_t { - uint32_t version; - uint32_t flags; -}; -/* masks for objc_image_info.flags */ -#define OBJC_IMAGE_IS_REPLACEMENT (1 << 0) -#define OBJC_IMAGE_SUPPORTS_GC (1 << 1) -#define OBJC_IMAGE_IS_SIMULATED (1 << 5) -#define OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES (1 << 6) - -struct message_ref64 { - uint64_t imp; /* IMP (64-bit pointer) */ - uint64_t sel; /* SEL (64-bit pointer) */ -}; - -struct message_ref32 { - uint32_t imp; /* IMP (32-bit pointer) */ - uint32_t sel; /* SEL (32-bit pointer) */ -}; - -// Objective-C 1 (32-bit only) meta data structs. - -struct objc_module_t { - uint32_t version; - uint32_t size; - uint32_t name; /* char * (32-bit pointer) */ - uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */ -}; - -struct objc_symtab_t { - uint32_t sel_ref_cnt; - uint32_t refs; /* SEL * (32-bit pointer) */ - uint16_t cls_def_cnt; - uint16_t cat_def_cnt; - // uint32_t defs[1]; /* void * (32-bit pointer) variable size */ -}; - -struct objc_class_t { - uint32_t isa; /* struct objc_class * (32-bit pointer) */ - uint32_t super_class; /* struct objc_class * (32-bit pointer) */ - uint32_t name; /* const char * (32-bit pointer) */ - int32_t version; - int32_t info; - int32_t instance_size; - uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */ - uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */ - uint32_t cache; /* struct objc_cache * (32-bit pointer) */ - uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */ -}; - -#define CLS_GETINFO(cls, infomask) ((cls)->info & (infomask)) -// class is not a metaclass -#define CLS_CLASS 0x1 -// class is a metaclass -#define CLS_META 0x2 - -struct objc_category_t { - uint32_t category_name; /* char * (32-bit pointer) */ - uint32_t class_name; /* char * (32-bit pointer) */ - uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */ - uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */ - uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */ -}; - -struct objc_ivar_t { - uint32_t ivar_name; /* char * (32-bit pointer) */ - uint32_t ivar_type; /* char * (32-bit pointer) */ - int32_t ivar_offset; -}; - -struct objc_ivar_list_t { - int32_t ivar_count; - // struct objc_ivar_t ivar_list[1]; /* variable length structure */ -}; - -struct objc_method_list_t { - uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */ - int32_t method_count; - // struct objc_method_t method_list[1]; /* variable length structure */ -}; - -struct objc_method_t { - uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */ - uint32_t method_types; /* char * (32-bit pointer) */ - uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...) - (32-bit pointer) */ -}; - -struct objc_protocol_list_t { - uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */ - int32_t count; - // uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t * - // (32-bit pointer) */ -}; - -struct objc_protocol_t { - uint32_t isa; /* struct objc_class * (32-bit pointer) */ - uint32_t protocol_name; /* char * (32-bit pointer) */ - uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */ - uint32_t instance_methods; /* struct objc_method_description_list * - (32-bit pointer) */ - uint32_t class_methods; /* struct objc_method_description_list * - (32-bit pointer) */ -}; - -struct objc_method_description_list_t { - int32_t count; - // struct objc_method_description_t list[1]; -}; - -struct objc_method_description_t { - uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */ - uint32_t types; /* char * (32-bit pointer) */ -}; - -inline void swapStruct(struct cfstring64_t &cfs) { - sys::swapByteOrder(cfs.isa); - sys::swapByteOrder(cfs.flags); - sys::swapByteOrder(cfs.characters); - sys::swapByteOrder(cfs.length); -} - -inline void swapStruct(struct class64_t &c) { - sys::swapByteOrder(c.isa); - sys::swapByteOrder(c.superclass); - sys::swapByteOrder(c.cache); - sys::swapByteOrder(c.vtable); - sys::swapByteOrder(c.data); -} - -inline void swapStruct(struct class32_t &c) { - sys::swapByteOrder(c.isa); - sys::swapByteOrder(c.superclass); - sys::swapByteOrder(c.cache); - sys::swapByteOrder(c.vtable); - sys::swapByteOrder(c.data); -} - -inline void swapStruct(struct class_ro64_t &cro) { - sys::swapByteOrder(cro.flags); - sys::swapByteOrder(cro.instanceStart); - sys::swapByteOrder(cro.instanceSize); - sys::swapByteOrder(cro.reserved); - sys::swapByteOrder(cro.ivarLayout); - sys::swapByteOrder(cro.name); - sys::swapByteOrder(cro.baseMethods); - sys::swapByteOrder(cro.baseProtocols); - sys::swapByteOrder(cro.ivars); - sys::swapByteOrder(cro.weakIvarLayout); - sys::swapByteOrder(cro.baseProperties); -} - -inline void swapStruct(struct class_ro32_t &cro) { - sys::swapByteOrder(cro.flags); - sys::swapByteOrder(cro.instanceStart); - sys::swapByteOrder(cro.instanceSize); - sys::swapByteOrder(cro.ivarLayout); - sys::swapByteOrder(cro.name); - sys::swapByteOrder(cro.baseMethods); - sys::swapByteOrder(cro.baseProtocols); - sys::swapByteOrder(cro.ivars); - sys::swapByteOrder(cro.weakIvarLayout); - sys::swapByteOrder(cro.baseProperties); -} - -inline void swapStruct(struct method_list64_t &ml) { - sys::swapByteOrder(ml.entsize); - sys::swapByteOrder(ml.count); -} - -inline void swapStruct(struct method_list32_t &ml) { - sys::swapByteOrder(ml.entsize); - sys::swapByteOrder(ml.count); -} - -inline void swapStruct(struct method64_t &m) { - sys::swapByteOrder(m.name); - sys::swapByteOrder(m.types); - sys::swapByteOrder(m.imp); -} - -inline void swapStruct(struct method32_t &m) { - sys::swapByteOrder(m.name); - sys::swapByteOrder(m.types); - sys::swapByteOrder(m.imp); -} - -inline void swapStruct(struct protocol_list64_t &pl) { - sys::swapByteOrder(pl.count); -} - -inline void swapStruct(struct protocol_list32_t &pl) { - sys::swapByteOrder(pl.count); -} - -inline void swapStruct(struct protocol64_t &p) { - sys::swapByteOrder(p.isa); - sys::swapByteOrder(p.name); - sys::swapByteOrder(p.protocols); - sys::swapByteOrder(p.instanceMethods); - sys::swapByteOrder(p.classMethods); - sys::swapByteOrder(p.optionalInstanceMethods); - sys::swapByteOrder(p.optionalClassMethods); - sys::swapByteOrder(p.instanceProperties); -} - -inline void swapStruct(struct protocol32_t &p) { - sys::swapByteOrder(p.isa); - sys::swapByteOrder(p.name); - sys::swapByteOrder(p.protocols); - sys::swapByteOrder(p.instanceMethods); - sys::swapByteOrder(p.classMethods); - sys::swapByteOrder(p.optionalInstanceMethods); - sys::swapByteOrder(p.optionalClassMethods); - sys::swapByteOrder(p.instanceProperties); -} - -inline void swapStruct(struct ivar_list64_t &il) { - sys::swapByteOrder(il.entsize); - sys::swapByteOrder(il.count); -} - -inline void swapStruct(struct ivar_list32_t &il) { - sys::swapByteOrder(il.entsize); - sys::swapByteOrder(il.count); -} - -inline void swapStruct(struct ivar64_t &i) { - sys::swapByteOrder(i.offset); - sys::swapByteOrder(i.name); - sys::swapByteOrder(i.type); - sys::swapByteOrder(i.alignment); - sys::swapByteOrder(i.size); -} - -inline void swapStruct(struct ivar32_t &i) { - sys::swapByteOrder(i.offset); - sys::swapByteOrder(i.name); - sys::swapByteOrder(i.type); - sys::swapByteOrder(i.alignment); - sys::swapByteOrder(i.size); -} - -inline void swapStruct(struct objc_property_list64 &pl) { - sys::swapByteOrder(pl.entsize); - sys::swapByteOrder(pl.count); -} - -inline void swapStruct(struct objc_property_list32 &pl) { - sys::swapByteOrder(pl.entsize); - sys::swapByteOrder(pl.count); -} - -inline void swapStruct(struct objc_property64 &op) { - sys::swapByteOrder(op.name); - sys::swapByteOrder(op.attributes); -} - -inline void swapStruct(struct objc_property32 &op) { - sys::swapByteOrder(op.name); - sys::swapByteOrder(op.attributes); -} - -inline void swapStruct(struct category64_t &c) { - sys::swapByteOrder(c.name); - sys::swapByteOrder(c.cls); - sys::swapByteOrder(c.instanceMethods); - sys::swapByteOrder(c.classMethods); - sys::swapByteOrder(c.protocols); - sys::swapByteOrder(c.instanceProperties); -} - -inline void swapStruct(struct category32_t &c) { - sys::swapByteOrder(c.name); - sys::swapByteOrder(c.cls); - sys::swapByteOrder(c.instanceMethods); - sys::swapByteOrder(c.classMethods); - sys::swapByteOrder(c.protocols); - sys::swapByteOrder(c.instanceProperties); -} - -inline void swapStruct(struct objc_image_info64 &o) { - sys::swapByteOrder(o.version); - sys::swapByteOrder(o.flags); -} - -inline void swapStruct(struct objc_image_info32 &o) { - sys::swapByteOrder(o.version); - sys::swapByteOrder(o.flags); -} - -inline void swapStruct(struct imageInfo_t &o) { - sys::swapByteOrder(o.version); - sys::swapByteOrder(o.flags); -} - -inline void swapStruct(struct message_ref64 &mr) { - sys::swapByteOrder(mr.imp); - sys::swapByteOrder(mr.sel); -} - -inline void swapStruct(struct message_ref32 &mr) { - sys::swapByteOrder(mr.imp); - sys::swapByteOrder(mr.sel); -} - -inline void swapStruct(struct objc_module_t &module) { - sys::swapByteOrder(module.version); - sys::swapByteOrder(module.size); - sys::swapByteOrder(module.name); - sys::swapByteOrder(module.symtab); -} - -inline void swapStruct(struct objc_symtab_t &symtab) { - sys::swapByteOrder(symtab.sel_ref_cnt); - sys::swapByteOrder(symtab.refs); - sys::swapByteOrder(symtab.cls_def_cnt); - sys::swapByteOrder(symtab.cat_def_cnt); -} - -inline void swapStruct(struct objc_class_t &objc_class) { - sys::swapByteOrder(objc_class.isa); - sys::swapByteOrder(objc_class.super_class); - sys::swapByteOrder(objc_class.name); - sys::swapByteOrder(objc_class.version); - sys::swapByteOrder(objc_class.info); - sys::swapByteOrder(objc_class.instance_size); - sys::swapByteOrder(objc_class.ivars); - sys::swapByteOrder(objc_class.methodLists); - sys::swapByteOrder(objc_class.cache); - sys::swapByteOrder(objc_class.protocols); -} - -inline void swapStruct(struct objc_category_t &objc_category) { - sys::swapByteOrder(objc_category.category_name); - sys::swapByteOrder(objc_category.class_name); - sys::swapByteOrder(objc_category.instance_methods); - sys::swapByteOrder(objc_category.class_methods); - sys::swapByteOrder(objc_category.protocols); -} - -inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) { - sys::swapByteOrder(objc_ivar_list.ivar_count); -} - -inline void swapStruct(struct objc_ivar_t &objc_ivar) { - sys::swapByteOrder(objc_ivar.ivar_name); - sys::swapByteOrder(objc_ivar.ivar_type); - sys::swapByteOrder(objc_ivar.ivar_offset); -} - -inline void swapStruct(struct objc_method_list_t &method_list) { - sys::swapByteOrder(method_list.obsolete); - sys::swapByteOrder(method_list.method_count); -} - -inline void swapStruct(struct objc_method_t &method) { - sys::swapByteOrder(method.method_name); - sys::swapByteOrder(method.method_types); - sys::swapByteOrder(method.method_imp); -} - -inline void swapStruct(struct objc_protocol_list_t &protocol_list) { - sys::swapByteOrder(protocol_list.next); - sys::swapByteOrder(protocol_list.count); -} - -inline void swapStruct(struct objc_protocol_t &protocol) { - sys::swapByteOrder(protocol.isa); - sys::swapByteOrder(protocol.protocol_name); - sys::swapByteOrder(protocol.protocol_list); - sys::swapByteOrder(protocol.instance_methods); - sys::swapByteOrder(protocol.class_methods); -} - -inline void swapStruct(struct objc_method_description_list_t &mdl) { - sys::swapByteOrder(mdl.count); -} - -inline void swapStruct(struct objc_method_description_t &md) { - sys::swapByteOrder(md.name); - sys::swapByteOrder(md.types); -} - -static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, - struct DisassembleInfo *info); - -// get_objc2_64bit_class_name() is used for disassembly and is passed a pointer -// to an Objective-C class and returns the class name. It is also passed the -// address of the pointer, so when the pointer is zero as it can be in an .o -// file, that is used to look for an external relocation entry with a symbol -// name. -static const char *get_objc2_64bit_class_name(uint64_t pointer_value, - uint64_t ReferenceValue, - struct DisassembleInfo *info) { - const char *r; - uint32_t offset, left; - SectionRef S; - - // The pointer_value can be 0 in an object file and have a relocation - // entry for the class symbol at the ReferenceValue (the address of the - // pointer). - if (pointer_value == 0) { - r = get_pointer_64(ReferenceValue, offset, left, S, info); - if (r == nullptr || left < sizeof(uint64_t)) - return nullptr; - uint64_t n_value; - const char *symbol_name = get_symbol_64(offset, S, info, n_value); - if (symbol_name == nullptr) - return nullptr; - const char *class_name = strrchr(symbol_name, '$'); - if (class_name != nullptr && class_name[1] == '_' && class_name[2] != '\0') - return class_name + 2; - else - return nullptr; - } - - // The case were the pointer_value is non-zero and points to a class defined - // in this Mach-O file. - r = get_pointer_64(pointer_value, offset, left, S, info); - if (r == nullptr || left < sizeof(struct class64_t)) - return nullptr; - struct class64_t c; - memcpy(&c, r, sizeof(struct class64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(c); - if (c.data == 0) - return nullptr; - r = get_pointer_64(c.data, offset, left, S, info); - if (r == nullptr || left < sizeof(struct class_ro64_t)) - return nullptr; - struct class_ro64_t cro; - memcpy(&cro, r, sizeof(struct class_ro64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(cro); - if (cro.name == 0) - return nullptr; - const char *name = get_pointer_64(cro.name, offset, left, S, info); - return name; -} - -// get_objc2_64bit_cfstring_name is used for disassembly and is passed a -// pointer to a cfstring and returns its name or nullptr. -static const char *get_objc2_64bit_cfstring_name(uint64_t ReferenceValue, - struct DisassembleInfo *info) { - const char *r, *name; - uint32_t offset, left; - SectionRef S; - struct cfstring64_t cfs; - uint64_t cfs_characters; - - r = get_pointer_64(ReferenceValue, offset, left, S, info); - if (r == nullptr || left < sizeof(struct cfstring64_t)) - return nullptr; - memcpy(&cfs, r, sizeof(struct cfstring64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(cfs); - if (cfs.characters == 0) { - uint64_t n_value; - const char *symbol_name = get_symbol_64( - offset + offsetof(struct cfstring64_t, characters), S, info, n_value); - if (symbol_name == nullptr) - return nullptr; - cfs_characters = n_value; - } else - cfs_characters = cfs.characters; - name = get_pointer_64(cfs_characters, offset, left, S, info); - - return name; -} - -// get_objc2_64bit_selref() is used for disassembly and is passed a the address -// of a pointer to an Objective-C selector reference when the pointer value is -// zero as in a .o file and is likely to have a external relocation entry with -// who's symbol's n_value is the real pointer to the selector name. If that is -// the case the real pointer to the selector name is returned else 0 is -// returned -static uint64_t get_objc2_64bit_selref(uint64_t ReferenceValue, - struct DisassembleInfo *info) { - uint32_t offset, left; - SectionRef S; - - const char *r = get_pointer_64(ReferenceValue, offset, left, S, info); - if (r == nullptr || left < sizeof(uint64_t)) - return 0; - uint64_t n_value; - const char *symbol_name = get_symbol_64(offset, S, info, n_value); - if (symbol_name == nullptr) - return 0; - return n_value; -} - -static const SectionRef get_section(MachOObjectFile *O, const char *segname, - const char *sectname) { - for (const SectionRef &Section : O->sections()) { - StringRef SectName; - Section.getName(SectName); - DataRefImpl Ref = Section.getRawDataRefImpl(); - StringRef SegName = O->getSectionFinalSegmentName(Ref); - if (SegName == segname && SectName == sectname) - return Section; - } - return SectionRef(); -} - -static void -walk_pointer_list_64(const char *listname, const SectionRef S, - MachOObjectFile *O, struct DisassembleInfo *info, - void (*func)(uint64_t, struct DisassembleInfo *info)) { - if (S == SectionRef()) - return; - - StringRef SectName; - S.getName(SectName); - DataRefImpl Ref = S.getRawDataRefImpl(); - StringRef SegName = O->getSectionFinalSegmentName(Ref); - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - - StringRef BytesStr = unwrapOrError(S.getContents(), O->getFileName()); - const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); - - for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint64_t)) { - uint32_t left = S.getSize() - i; - uint32_t size = left < sizeof(uint64_t) ? left : sizeof(uint64_t); - uint64_t p = 0; - memcpy(&p, Contents + i, size); - if (i + sizeof(uint64_t) > S.getSize()) - outs() << listname << " list pointer extends past end of (" << SegName - << "," << SectName << ") section\n"; - outs() << format("%016" PRIx64, S.getAddress() + i) << " "; - - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(p); - - uint64_t n_value = 0; - const char *name = get_symbol_64(i, S, info, n_value, p); - if (name == nullptr) - name = get_dyld_bind_info_symbolname(S.getAddress() + i, info); - - if (n_value != 0) { - outs() << format("0x%" PRIx64, n_value); - if (p != 0) - outs() << " + " << format("0x%" PRIx64, p); - } else - outs() << format("0x%" PRIx64, p); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - p += n_value; - if (func) - func(p, info); - } -} - -static void -walk_pointer_list_32(const char *listname, const SectionRef S, - MachOObjectFile *O, struct DisassembleInfo *info, - void (*func)(uint32_t, struct DisassembleInfo *info)) { - if (S == SectionRef()) - return; - - StringRef SectName; - S.getName(SectName); - DataRefImpl Ref = S.getRawDataRefImpl(); - StringRef SegName = O->getSectionFinalSegmentName(Ref); - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - - StringRef BytesStr = unwrapOrError(S.getContents(), O->getFileName()); - const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); - - for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint32_t)) { - uint32_t left = S.getSize() - i; - uint32_t size = left < sizeof(uint32_t) ? left : sizeof(uint32_t); - uint32_t p = 0; - memcpy(&p, Contents + i, size); - if (i + sizeof(uint32_t) > S.getSize()) - outs() << listname << " list pointer extends past end of (" << SegName - << "," << SectName << ") section\n"; - uint32_t Address = S.getAddress() + i; - outs() << format("%08" PRIx32, Address) << " "; - - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(p); - outs() << format("0x%" PRIx32, p); - - const char *name = get_symbol_32(i, S, info, p); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - if (func) - func(p, info); - } -} - -static void print_layout_map(const char *layout_map, uint32_t left) { - if (layout_map == nullptr) - return; - outs() << " layout map: "; - do { - outs() << format("0x%02" PRIx32, (*layout_map) & 0xff) << " "; - left--; - layout_map++; - } while (*layout_map != '\0' && left != 0); - outs() << "\n"; -} - -static void print_layout_map64(uint64_t p, struct DisassembleInfo *info) { - uint32_t offset, left; - SectionRef S; - const char *layout_map; - - if (p == 0) - return; - layout_map = get_pointer_64(p, offset, left, S, info); - print_layout_map(layout_map, left); -} - -static void print_layout_map32(uint32_t p, struct DisassembleInfo *info) { - uint32_t offset, left; - SectionRef S; - const char *layout_map; - - if (p == 0) - return; - layout_map = get_pointer_32(p, offset, left, S, info); - print_layout_map(layout_map, left); -} - -static void print_method_list64_t(uint64_t p, struct DisassembleInfo *info, - const char *indent) { - struct method_list64_t ml; - struct method64_t m; - const char *r; - uint32_t offset, xoffset, left, i; - SectionRef S, xS; - const char *name, *sym_name; - uint64_t n_value; - - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&ml, '\0', sizeof(struct method_list64_t)); - if (left < sizeof(struct method_list64_t)) { - memcpy(&ml, r, left); - outs() << " (method_list_t entends past the end of the section)\n"; - } else - memcpy(&ml, r, sizeof(struct method_list64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(ml); - outs() << indent << "\t\t entsize " << ml.entsize << "\n"; - outs() << indent << "\t\t count " << ml.count << "\n"; - - p += sizeof(struct method_list64_t); - offset += sizeof(struct method_list64_t); - for (i = 0; i < ml.count; i++) { - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&m, '\0', sizeof(struct method64_t)); - if (left < sizeof(struct method64_t)) { - memcpy(&m, r, left); - outs() << indent << " (method_t extends past the end of the section)\n"; - } else - memcpy(&m, r, sizeof(struct method64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(m); - - outs() << indent << "\t\t name "; - sym_name = get_symbol_64(offset + offsetof(struct method64_t, name), S, - info, n_value, m.name); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (m.name != 0) - outs() << " + " << format("0x%" PRIx64, m.name); - } else - outs() << format("0x%" PRIx64, m.name); - name = get_pointer_64(m.name + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << indent << "\t\t types "; - sym_name = get_symbol_64(offset + offsetof(struct method64_t, types), S, - info, n_value, m.types); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (m.types != 0) - outs() << " + " << format("0x%" PRIx64, m.types); - } else - outs() << format("0x%" PRIx64, m.types); - name = get_pointer_64(m.types + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << indent << "\t\t imp "; - name = get_symbol_64(offset + offsetof(struct method64_t, imp), S, info, - n_value, m.imp); - if (info->verbose && name == nullptr) { - if (n_value != 0) { - outs() << format("0x%" PRIx64, n_value) << " "; - if (m.imp != 0) - outs() << "+ " << format("0x%" PRIx64, m.imp) << " "; - } else - outs() << format("0x%" PRIx64, m.imp) << " "; - } - if (name != nullptr) - outs() << name; - outs() << "\n"; - - p += sizeof(struct method64_t); - offset += sizeof(struct method64_t); - } -} - -static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info, - const char *indent) { - struct method_list32_t ml; - struct method32_t m; - const char *r, *name; - uint32_t offset, xoffset, left, i; - SectionRef S, xS; - - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&ml, '\0', sizeof(struct method_list32_t)); - if (left < sizeof(struct method_list32_t)) { - memcpy(&ml, r, left); - outs() << " (method_list_t entends past the end of the section)\n"; - } else - memcpy(&ml, r, sizeof(struct method_list32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(ml); - outs() << indent << "\t\t entsize " << ml.entsize << "\n"; - outs() << indent << "\t\t count " << ml.count << "\n"; - - p += sizeof(struct method_list32_t); - offset += sizeof(struct method_list32_t); - for (i = 0; i < ml.count; i++) { - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&m, '\0', sizeof(struct method32_t)); - if (left < sizeof(struct method32_t)) { - memcpy(&ml, r, left); - outs() << indent << " (method_t entends past the end of the section)\n"; - } else - memcpy(&m, r, sizeof(struct method32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(m); - - outs() << indent << "\t\t name " << format("0x%" PRIx32, m.name); - name = get_pointer_32(m.name, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << indent << "\t\t types " << format("0x%" PRIx32, m.types); - name = get_pointer_32(m.types, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << indent << "\t\t imp " << format("0x%" PRIx32, m.imp); - name = get_symbol_32(offset + offsetof(struct method32_t, imp), S, info, - m.imp); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - p += sizeof(struct method32_t); - offset += sizeof(struct method32_t); - } -} - -static bool print_method_list(uint32_t p, struct DisassembleInfo *info) { - uint32_t offset, left, xleft; - SectionRef S; - struct objc_method_list_t method_list; - struct objc_method_t method; - const char *r, *methods, *name, *SymbolName; - int32_t i; - - r = get_pointer_32(p, offset, left, S, info, true); - if (r == nullptr) - return true; - - outs() << "\n"; - if (left > sizeof(struct objc_method_list_t)) { - memcpy(&method_list, r, sizeof(struct objc_method_list_t)); - } else { - outs() << "\t\t objc_method_list extends past end of the section\n"; - memset(&method_list, '\0', sizeof(struct objc_method_list_t)); - memcpy(&method_list, r, left); - } - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(method_list); - - outs() << "\t\t obsolete " - << format("0x%08" PRIx32, method_list.obsolete) << "\n"; - outs() << "\t\t method_count " << method_list.method_count << "\n"; - - methods = r + sizeof(struct objc_method_list_t); - for (i = 0; i < method_list.method_count; i++) { - if ((i + 1) * sizeof(struct objc_method_t) > left) { - outs() << "\t\t remaining method's extend past the of the section\n"; - break; - } - memcpy(&method, methods + i * sizeof(struct objc_method_t), - sizeof(struct objc_method_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(method); - - outs() << "\t\t method_name " - << format("0x%08" PRIx32, method.method_name); - if (info->verbose) { - name = get_pointer_32(method.method_name, offset, xleft, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", xleft, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t\t method_types " - << format("0x%08" PRIx32, method.method_types); - if (info->verbose) { - name = get_pointer_32(method.method_types, offset, xleft, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", xleft, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t\t method_imp " - << format("0x%08" PRIx32, method.method_imp) << " "; - if (info->verbose) { - SymbolName = GuessSymbolName(method.method_imp, info->AddrMap); - if (SymbolName != nullptr) - outs() << SymbolName; - } - outs() << "\n"; - } - return false; -} - -static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) { - struct protocol_list64_t pl; - uint64_t q, n_value; - struct protocol64_t pc; - const char *r; - uint32_t offset, xoffset, left, i; - SectionRef S, xS; - const char *name, *sym_name; - - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&pl, '\0', sizeof(struct protocol_list64_t)); - if (left < sizeof(struct protocol_list64_t)) { - memcpy(&pl, r, left); - outs() << " (protocol_list_t entends past the end of the section)\n"; - } else - memcpy(&pl, r, sizeof(struct protocol_list64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(pl); - outs() << " count " << pl.count << "\n"; - - p += sizeof(struct protocol_list64_t); - offset += sizeof(struct protocol_list64_t); - for (i = 0; i < pl.count; i++) { - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - q = 0; - if (left < sizeof(uint64_t)) { - memcpy(&q, r, left); - outs() << " (protocol_t * entends past the end of the section)\n"; - } else - memcpy(&q, r, sizeof(uint64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(q); - - outs() << "\t\t list[" << i << "] "; - sym_name = get_symbol_64(offset, S, info, n_value, q); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (q != 0) - outs() << " + " << format("0x%" PRIx64, q); - } else - outs() << format("0x%" PRIx64, q); - outs() << " (struct protocol_t *)\n"; - - r = get_pointer_64(q + n_value, offset, left, S, info); - if (r == nullptr) - return; - memset(&pc, '\0', sizeof(struct protocol64_t)); - if (left < sizeof(struct protocol64_t)) { - memcpy(&pc, r, left); - outs() << " (protocol_t entends past the end of the section)\n"; - } else - memcpy(&pc, r, sizeof(struct protocol64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(pc); - - outs() << "\t\t\t isa " << format("0x%" PRIx64, pc.isa) << "\n"; - - outs() << "\t\t\t name "; - sym_name = get_symbol_64(offset + offsetof(struct protocol64_t, name), S, - info, n_value, pc.name); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (pc.name != 0) - outs() << " + " << format("0x%" PRIx64, pc.name); - } else - outs() << format("0x%" PRIx64, pc.name); - name = get_pointer_64(pc.name + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << "\t\t\tprotocols " << format("0x%" PRIx64, pc.protocols) << "\n"; - - outs() << "\t\t instanceMethods "; - sym_name = - get_symbol_64(offset + offsetof(struct protocol64_t, instanceMethods), - S, info, n_value, pc.instanceMethods); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (pc.instanceMethods != 0) - outs() << " + " << format("0x%" PRIx64, pc.instanceMethods); - } else - outs() << format("0x%" PRIx64, pc.instanceMethods); - outs() << " (struct method_list_t *)\n"; - if (pc.instanceMethods + n_value != 0) - print_method_list64_t(pc.instanceMethods + n_value, info, "\t"); - - outs() << "\t\t classMethods "; - sym_name = - get_symbol_64(offset + offsetof(struct protocol64_t, classMethods), S, - info, n_value, pc.classMethods); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (pc.classMethods != 0) - outs() << " + " << format("0x%" PRIx64, pc.classMethods); - } else - outs() << format("0x%" PRIx64, pc.classMethods); - outs() << " (struct method_list_t *)\n"; - if (pc.classMethods + n_value != 0) - print_method_list64_t(pc.classMethods + n_value, info, "\t"); - - outs() << "\t optionalInstanceMethods " - << format("0x%" PRIx64, pc.optionalInstanceMethods) << "\n"; - outs() << "\t optionalClassMethods " - << format("0x%" PRIx64, pc.optionalClassMethods) << "\n"; - outs() << "\t instanceProperties " - << format("0x%" PRIx64, pc.instanceProperties) << "\n"; - - p += sizeof(uint64_t); - offset += sizeof(uint64_t); - } -} - -static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) { - struct protocol_list32_t pl; - uint32_t q; - struct protocol32_t pc; - const char *r; - uint32_t offset, xoffset, left, i; - SectionRef S, xS; - const char *name; - - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&pl, '\0', sizeof(struct protocol_list32_t)); - if (left < sizeof(struct protocol_list32_t)) { - memcpy(&pl, r, left); - outs() << " (protocol_list_t entends past the end of the section)\n"; - } else - memcpy(&pl, r, sizeof(struct protocol_list32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(pl); - outs() << " count " << pl.count << "\n"; - - p += sizeof(struct protocol_list32_t); - offset += sizeof(struct protocol_list32_t); - for (i = 0; i < pl.count; i++) { - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - q = 0; - if (left < sizeof(uint32_t)) { - memcpy(&q, r, left); - outs() << " (protocol_t * entends past the end of the section)\n"; - } else - memcpy(&q, r, sizeof(uint32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(q); - outs() << "\t\t list[" << i << "] " << format("0x%" PRIx32, q) - << " (struct protocol_t *)\n"; - r = get_pointer_32(q, offset, left, S, info); - if (r == nullptr) - return; - memset(&pc, '\0', sizeof(struct protocol32_t)); - if (left < sizeof(struct protocol32_t)) { - memcpy(&pc, r, left); - outs() << " (protocol_t entends past the end of the section)\n"; - } else - memcpy(&pc, r, sizeof(struct protocol32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(pc); - outs() << "\t\t\t isa " << format("0x%" PRIx32, pc.isa) << "\n"; - outs() << "\t\t\t name " << format("0x%" PRIx32, pc.name); - name = get_pointer_32(pc.name, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - outs() << "\t\t\tprotocols " << format("0x%" PRIx32, pc.protocols) << "\n"; - outs() << "\t\t instanceMethods " - << format("0x%" PRIx32, pc.instanceMethods) - << " (struct method_list_t *)\n"; - if (pc.instanceMethods != 0) - print_method_list32_t(pc.instanceMethods, info, "\t"); - outs() << "\t\t classMethods " << format("0x%" PRIx32, pc.classMethods) - << " (struct method_list_t *)\n"; - if (pc.classMethods != 0) - print_method_list32_t(pc.classMethods, info, "\t"); - outs() << "\t optionalInstanceMethods " - << format("0x%" PRIx32, pc.optionalInstanceMethods) << "\n"; - outs() << "\t optionalClassMethods " - << format("0x%" PRIx32, pc.optionalClassMethods) << "\n"; - outs() << "\t instanceProperties " - << format("0x%" PRIx32, pc.instanceProperties) << "\n"; - p += sizeof(uint32_t); - offset += sizeof(uint32_t); - } -} - -static void print_indent(uint32_t indent) { - for (uint32_t i = 0; i < indent;) { - if (indent - i >= 8) { - outs() << "\t"; - i += 8; - } else { - for (uint32_t j = i; j < indent; j++) - outs() << " "; - return; - } - } -} - -static bool print_method_description_list(uint32_t p, uint32_t indent, - struct DisassembleInfo *info) { - uint32_t offset, left, xleft; - SectionRef S; - struct objc_method_description_list_t mdl; - struct objc_method_description_t md; - const char *r, *list, *name; - int32_t i; - - r = get_pointer_32(p, offset, left, S, info, true); - if (r == nullptr) - return true; - - outs() << "\n"; - if (left > sizeof(struct objc_method_description_list_t)) { - memcpy(&mdl, r, sizeof(struct objc_method_description_list_t)); - } else { - print_indent(indent); - outs() << " objc_method_description_list extends past end of the section\n"; - memset(&mdl, '\0', sizeof(struct objc_method_description_list_t)); - memcpy(&mdl, r, left); - } - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(mdl); - - print_indent(indent); - outs() << " count " << mdl.count << "\n"; - - list = r + sizeof(struct objc_method_description_list_t); - for (i = 0; i < mdl.count; i++) { - if ((i + 1) * sizeof(struct objc_method_description_t) > left) { - print_indent(indent); - outs() << " remaining list entries extend past the of the section\n"; - break; - } - print_indent(indent); - outs() << " list[" << i << "]\n"; - memcpy(&md, list + i * sizeof(struct objc_method_description_t), - sizeof(struct objc_method_description_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(md); - - print_indent(indent); - outs() << " name " << format("0x%08" PRIx32, md.name); - if (info->verbose) { - name = get_pointer_32(md.name, offset, xleft, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", xleft, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - print_indent(indent); - outs() << " types " << format("0x%08" PRIx32, md.types); - if (info->verbose) { - name = get_pointer_32(md.types, offset, xleft, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", xleft, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - } - return false; -} - -static bool print_protocol_list(uint32_t p, uint32_t indent, - struct DisassembleInfo *info); - -static bool print_protocol(uint32_t p, uint32_t indent, - struct DisassembleInfo *info) { - uint32_t offset, left; - SectionRef S; - struct objc_protocol_t protocol; - const char *r, *name; - - r = get_pointer_32(p, offset, left, S, info, true); - if (r == nullptr) - return true; - - outs() << "\n"; - if (left >= sizeof(struct objc_protocol_t)) { - memcpy(&protocol, r, sizeof(struct objc_protocol_t)); - } else { - print_indent(indent); - outs() << " Protocol extends past end of the section\n"; - memset(&protocol, '\0', sizeof(struct objc_protocol_t)); - memcpy(&protocol, r, left); - } - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(protocol); - - print_indent(indent); - outs() << " isa " << format("0x%08" PRIx32, protocol.isa) - << "\n"; - - print_indent(indent); - outs() << " protocol_name " - << format("0x%08" PRIx32, protocol.protocol_name); - if (info->verbose) { - name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", left, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - print_indent(indent); - outs() << " protocol_list " - << format("0x%08" PRIx32, protocol.protocol_list); - if (print_protocol_list(protocol.protocol_list, indent + 4, info)) - outs() << " (not in an __OBJC section)\n"; - - print_indent(indent); - outs() << " instance_methods " - << format("0x%08" PRIx32, protocol.instance_methods); - if (print_method_description_list(protocol.instance_methods, indent, info)) - outs() << " (not in an __OBJC section)\n"; - - print_indent(indent); - outs() << " class_methods " - << format("0x%08" PRIx32, protocol.class_methods); - if (print_method_description_list(protocol.class_methods, indent, info)) - outs() << " (not in an __OBJC section)\n"; - - return false; -} - -static bool print_protocol_list(uint32_t p, uint32_t indent, - struct DisassembleInfo *info) { - uint32_t offset, left, l; - SectionRef S; - struct objc_protocol_list_t protocol_list; - const char *r, *list; - int32_t i; - - r = get_pointer_32(p, offset, left, S, info, true); - if (r == nullptr) - return true; - - outs() << "\n"; - if (left > sizeof(struct objc_protocol_list_t)) { - memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t)); - } else { - outs() << "\t\t objc_protocol_list_t extends past end of the section\n"; - memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t)); - memcpy(&protocol_list, r, left); - } - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(protocol_list); - - print_indent(indent); - outs() << " next " << format("0x%08" PRIx32, protocol_list.next) - << "\n"; - print_indent(indent); - outs() << " count " << protocol_list.count << "\n"; - - list = r + sizeof(struct objc_protocol_list_t); - for (i = 0; i < protocol_list.count; i++) { - if ((i + 1) * sizeof(uint32_t) > left) { - outs() << "\t\t remaining list entries extend past the of the section\n"; - break; - } - memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(l); - - print_indent(indent); - outs() << " list[" << i << "] " << format("0x%08" PRIx32, l); - if (print_protocol(l, indent, info)) - outs() << "(not in an __OBJC section)\n"; - } - return false; -} - -static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) { - struct ivar_list64_t il; - struct ivar64_t i; - const char *r; - uint32_t offset, xoffset, left, j; - SectionRef S, xS; - const char *name, *sym_name, *ivar_offset_p; - uint64_t ivar_offset, n_value; - - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&il, '\0', sizeof(struct ivar_list64_t)); - if (left < sizeof(struct ivar_list64_t)) { - memcpy(&il, r, left); - outs() << " (ivar_list_t entends past the end of the section)\n"; - } else - memcpy(&il, r, sizeof(struct ivar_list64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(il); - outs() << " entsize " << il.entsize << "\n"; - outs() << " count " << il.count << "\n"; - - p += sizeof(struct ivar_list64_t); - offset += sizeof(struct ivar_list64_t); - for (j = 0; j < il.count; j++) { - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&i, '\0', sizeof(struct ivar64_t)); - if (left < sizeof(struct ivar64_t)) { - memcpy(&i, r, left); - outs() << " (ivar_t entends past the end of the section)\n"; - } else - memcpy(&i, r, sizeof(struct ivar64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(i); - - outs() << "\t\t\t offset "; - sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, offset), S, - info, n_value, i.offset); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (i.offset != 0) - outs() << " + " << format("0x%" PRIx64, i.offset); - } else - outs() << format("0x%" PRIx64, i.offset); - ivar_offset_p = get_pointer_64(i.offset + n_value, xoffset, left, xS, info); - if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { - memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(ivar_offset); - outs() << " " << ivar_offset << "\n"; - } else - outs() << "\n"; - - outs() << "\t\t\t name "; - sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, name), S, info, - n_value, i.name); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (i.name != 0) - outs() << " + " << format("0x%" PRIx64, i.name); - } else - outs() << format("0x%" PRIx64, i.name); - name = get_pointer_64(i.name + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << "\t\t\t type "; - sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, type), S, info, - n_value, i.name); - name = get_pointer_64(i.type + n_value, xoffset, left, xS, info); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (i.type != 0) - outs() << " + " << format("0x%" PRIx64, i.type); - } else - outs() << format("0x%" PRIx64, i.type); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << "\t\t\talignment " << i.alignment << "\n"; - outs() << "\t\t\t size " << i.size << "\n"; - - p += sizeof(struct ivar64_t); - offset += sizeof(struct ivar64_t); - } -} - -static void print_ivar_list32_t(uint32_t p, struct DisassembleInfo *info) { - struct ivar_list32_t il; - struct ivar32_t i; - const char *r; - uint32_t offset, xoffset, left, j; - SectionRef S, xS; - const char *name, *ivar_offset_p; - uint32_t ivar_offset; - - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&il, '\0', sizeof(struct ivar_list32_t)); - if (left < sizeof(struct ivar_list32_t)) { - memcpy(&il, r, left); - outs() << " (ivar_list_t entends past the end of the section)\n"; - } else - memcpy(&il, r, sizeof(struct ivar_list32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(il); - outs() << " entsize " << il.entsize << "\n"; - outs() << " count " << il.count << "\n"; - - p += sizeof(struct ivar_list32_t); - offset += sizeof(struct ivar_list32_t); - for (j = 0; j < il.count; j++) { - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&i, '\0', sizeof(struct ivar32_t)); - if (left < sizeof(struct ivar32_t)) { - memcpy(&i, r, left); - outs() << " (ivar_t entends past the end of the section)\n"; - } else - memcpy(&i, r, sizeof(struct ivar32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(i); - - outs() << "\t\t\t offset " << format("0x%" PRIx32, i.offset); - ivar_offset_p = get_pointer_32(i.offset, xoffset, left, xS, info); - if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { - memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(ivar_offset); - outs() << " " << ivar_offset << "\n"; - } else - outs() << "\n"; - - outs() << "\t\t\t name " << format("0x%" PRIx32, i.name); - name = get_pointer_32(i.name, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << "\t\t\t type " << format("0x%" PRIx32, i.type); - name = get_pointer_32(i.type, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << "\t\t\talignment " << i.alignment << "\n"; - outs() << "\t\t\t size " << i.size << "\n"; - - p += sizeof(struct ivar32_t); - offset += sizeof(struct ivar32_t); - } -} - -static void print_objc_property_list64(uint64_t p, - struct DisassembleInfo *info) { - struct objc_property_list64 opl; - struct objc_property64 op; - const char *r; - uint32_t offset, xoffset, left, j; - SectionRef S, xS; - const char *name, *sym_name; - uint64_t n_value; - - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&opl, '\0', sizeof(struct objc_property_list64)); - if (left < sizeof(struct objc_property_list64)) { - memcpy(&opl, r, left); - outs() << " (objc_property_list entends past the end of the section)\n"; - } else - memcpy(&opl, r, sizeof(struct objc_property_list64)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(opl); - outs() << " entsize " << opl.entsize << "\n"; - outs() << " count " << opl.count << "\n"; - - p += sizeof(struct objc_property_list64); - offset += sizeof(struct objc_property_list64); - for (j = 0; j < opl.count; j++) { - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&op, '\0', sizeof(struct objc_property64)); - if (left < sizeof(struct objc_property64)) { - memcpy(&op, r, left); - outs() << " (objc_property entends past the end of the section)\n"; - } else - memcpy(&op, r, sizeof(struct objc_property64)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(op); - - outs() << "\t\t\t name "; - sym_name = get_symbol_64(offset + offsetof(struct objc_property64, name), S, - info, n_value, op.name); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (op.name != 0) - outs() << " + " << format("0x%" PRIx64, op.name); - } else - outs() << format("0x%" PRIx64, op.name); - name = get_pointer_64(op.name + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << "\t\t\tattributes "; - sym_name = - get_symbol_64(offset + offsetof(struct objc_property64, attributes), S, - info, n_value, op.attributes); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (op.attributes != 0) - outs() << " + " << format("0x%" PRIx64, op.attributes); - } else - outs() << format("0x%" PRIx64, op.attributes); - name = get_pointer_64(op.attributes + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - p += sizeof(struct objc_property64); - offset += sizeof(struct objc_property64); - } -} - -static void print_objc_property_list32(uint32_t p, - struct DisassembleInfo *info) { - struct objc_property_list32 opl; - struct objc_property32 op; - const char *r; - uint32_t offset, xoffset, left, j; - SectionRef S, xS; - const char *name; - - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&opl, '\0', sizeof(struct objc_property_list32)); - if (left < sizeof(struct objc_property_list32)) { - memcpy(&opl, r, left); - outs() << " (objc_property_list entends past the end of the section)\n"; - } else - memcpy(&opl, r, sizeof(struct objc_property_list32)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(opl); - outs() << " entsize " << opl.entsize << "\n"; - outs() << " count " << opl.count << "\n"; - - p += sizeof(struct objc_property_list32); - offset += sizeof(struct objc_property_list32); - for (j = 0; j < opl.count; j++) { - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&op, '\0', sizeof(struct objc_property32)); - if (left < sizeof(struct objc_property32)) { - memcpy(&op, r, left); - outs() << " (objc_property entends past the end of the section)\n"; - } else - memcpy(&op, r, sizeof(struct objc_property32)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(op); - - outs() << "\t\t\t name " << format("0x%" PRIx32, op.name); - name = get_pointer_32(op.name, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << "\t\t\tattributes " << format("0x%" PRIx32, op.attributes); - name = get_pointer_32(op.attributes, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - p += sizeof(struct objc_property32); - offset += sizeof(struct objc_property32); - } -} - -static bool print_class_ro64_t(uint64_t p, struct DisassembleInfo *info, - bool &is_meta_class) { - struct class_ro64_t cro; - const char *r; - uint32_t offset, xoffset, left; - SectionRef S, xS; - const char *name, *sym_name; - uint64_t n_value; - - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr || left < sizeof(struct class_ro64_t)) - return false; - memcpy(&cro, r, sizeof(struct class_ro64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(cro); - outs() << " flags " << format("0x%" PRIx32, cro.flags); - if (cro.flags & RO_META) - outs() << " RO_META"; - if (cro.flags & RO_ROOT) - outs() << " RO_ROOT"; - if (cro.flags & RO_HAS_CXX_STRUCTORS) - outs() << " RO_HAS_CXX_STRUCTORS"; - outs() << "\n"; - outs() << " instanceStart " << cro.instanceStart << "\n"; - outs() << " instanceSize " << cro.instanceSize << "\n"; - outs() << " reserved " << format("0x%" PRIx32, cro.reserved) - << "\n"; - outs() << " ivarLayout " << format("0x%" PRIx64, cro.ivarLayout) - << "\n"; - print_layout_map64(cro.ivarLayout, info); - - outs() << " name "; - sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, name), S, - info, n_value, cro.name); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (cro.name != 0) - outs() << " + " << format("0x%" PRIx64, cro.name); - } else - outs() << format("0x%" PRIx64, cro.name); - name = get_pointer_64(cro.name + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << " baseMethods "; - sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, baseMethods), - S, info, n_value, cro.baseMethods); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (cro.baseMethods != 0) - outs() << " + " << format("0x%" PRIx64, cro.baseMethods); - } else - outs() << format("0x%" PRIx64, cro.baseMethods); - outs() << " (struct method_list_t *)\n"; - if (cro.baseMethods + n_value != 0) - print_method_list64_t(cro.baseMethods + n_value, info, ""); - - outs() << " baseProtocols "; - sym_name = - get_symbol_64(offset + offsetof(struct class_ro64_t, baseProtocols), S, - info, n_value, cro.baseProtocols); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (cro.baseProtocols != 0) - outs() << " + " << format("0x%" PRIx64, cro.baseProtocols); - } else - outs() << format("0x%" PRIx64, cro.baseProtocols); - outs() << "\n"; - if (cro.baseProtocols + n_value != 0) - print_protocol_list64_t(cro.baseProtocols + n_value, info); - - outs() << " ivars "; - sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, ivars), S, - info, n_value, cro.ivars); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (cro.ivars != 0) - outs() << " + " << format("0x%" PRIx64, cro.ivars); - } else - outs() << format("0x%" PRIx64, cro.ivars); - outs() << "\n"; - if (cro.ivars + n_value != 0) - print_ivar_list64_t(cro.ivars + n_value, info); - - outs() << " weakIvarLayout "; - sym_name = - get_symbol_64(offset + offsetof(struct class_ro64_t, weakIvarLayout), S, - info, n_value, cro.weakIvarLayout); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (cro.weakIvarLayout != 0) - outs() << " + " << format("0x%" PRIx64, cro.weakIvarLayout); - } else - outs() << format("0x%" PRIx64, cro.weakIvarLayout); - outs() << "\n"; - print_layout_map64(cro.weakIvarLayout + n_value, info); - - outs() << " baseProperties "; - sym_name = - get_symbol_64(offset + offsetof(struct class_ro64_t, baseProperties), S, - info, n_value, cro.baseProperties); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (cro.baseProperties != 0) - outs() << " + " << format("0x%" PRIx64, cro.baseProperties); - } else - outs() << format("0x%" PRIx64, cro.baseProperties); - outs() << "\n"; - if (cro.baseProperties + n_value != 0) - print_objc_property_list64(cro.baseProperties + n_value, info); - - is_meta_class = (cro.flags & RO_META) != 0; - return true; -} - -static bool print_class_ro32_t(uint32_t p, struct DisassembleInfo *info, - bool &is_meta_class) { - struct class_ro32_t cro; - const char *r; - uint32_t offset, xoffset, left; - SectionRef S, xS; - const char *name; - - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return false; - memset(&cro, '\0', sizeof(struct class_ro32_t)); - if (left < sizeof(struct class_ro32_t)) { - memcpy(&cro, r, left); - outs() << " (class_ro_t entends past the end of the section)\n"; - } else - memcpy(&cro, r, sizeof(struct class_ro32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(cro); - outs() << " flags " << format("0x%" PRIx32, cro.flags); - if (cro.flags & RO_META) - outs() << " RO_META"; - if (cro.flags & RO_ROOT) - outs() << " RO_ROOT"; - if (cro.flags & RO_HAS_CXX_STRUCTORS) - outs() << " RO_HAS_CXX_STRUCTORS"; - outs() << "\n"; - outs() << " instanceStart " << cro.instanceStart << "\n"; - outs() << " instanceSize " << cro.instanceSize << "\n"; - outs() << " ivarLayout " << format("0x%" PRIx32, cro.ivarLayout) - << "\n"; - print_layout_map32(cro.ivarLayout, info); - - outs() << " name " << format("0x%" PRIx32, cro.name); - name = get_pointer_32(cro.name, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << " baseMethods " - << format("0x%" PRIx32, cro.baseMethods) - << " (struct method_list_t *)\n"; - if (cro.baseMethods != 0) - print_method_list32_t(cro.baseMethods, info, ""); - - outs() << " baseProtocols " - << format("0x%" PRIx32, cro.baseProtocols) << "\n"; - if (cro.baseProtocols != 0) - print_protocol_list32_t(cro.baseProtocols, info); - outs() << " ivars " << format("0x%" PRIx32, cro.ivars) - << "\n"; - if (cro.ivars != 0) - print_ivar_list32_t(cro.ivars, info); - outs() << " weakIvarLayout " - << format("0x%" PRIx32, cro.weakIvarLayout) << "\n"; - print_layout_map32(cro.weakIvarLayout, info); - outs() << " baseProperties " - << format("0x%" PRIx32, cro.baseProperties) << "\n"; - if (cro.baseProperties != 0) - print_objc_property_list32(cro.baseProperties, info); - is_meta_class = (cro.flags & RO_META) != 0; - return true; -} - -static void print_class64_t(uint64_t p, struct DisassembleInfo *info) { - struct class64_t c; - const char *r; - uint32_t offset, left; - SectionRef S; - const char *name; - uint64_t isa_n_value, n_value; - - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr || left < sizeof(struct class64_t)) - return; - memcpy(&c, r, sizeof(struct class64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(c); - - outs() << " isa " << format("0x%" PRIx64, c.isa); - name = get_symbol_64(offset + offsetof(struct class64_t, isa), S, info, - isa_n_value, c.isa); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - outs() << " superclass " << format("0x%" PRIx64, c.superclass); - name = get_symbol_64(offset + offsetof(struct class64_t, superclass), S, info, - n_value, c.superclass); - if (name != nullptr) - outs() << " " << name; - else { - name = get_dyld_bind_info_symbolname(S.getAddress() + - offset + offsetof(struct class64_t, superclass), info); - if (name != nullptr) - outs() << " " << name; - } - outs() << "\n"; - - outs() << " cache " << format("0x%" PRIx64, c.cache); - name = get_symbol_64(offset + offsetof(struct class64_t, cache), S, info, - n_value, c.cache); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - outs() << " vtable " << format("0x%" PRIx64, c.vtable); - name = get_symbol_64(offset + offsetof(struct class64_t, vtable), S, info, - n_value, c.vtable); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - name = get_symbol_64(offset + offsetof(struct class64_t, data), S, info, - n_value, c.data); - outs() << " data "; - if (n_value != 0) { - if (info->verbose && name != nullptr) - outs() << name; - else - outs() << format("0x%" PRIx64, n_value); - if (c.data != 0) - outs() << " + " << format("0x%" PRIx64, c.data); - } else - outs() << format("0x%" PRIx64, c.data); - outs() << " (struct class_ro_t *)"; - - // This is a Swift class if some of the low bits of the pointer are set. - if ((c.data + n_value) & 0x7) - outs() << " Swift class"; - outs() << "\n"; - bool is_meta_class; - if (!print_class_ro64_t((c.data + n_value) & ~0x7, info, is_meta_class)) - return; - - if (!is_meta_class && - c.isa + isa_n_value != p && - c.isa + isa_n_value != 0 && - info->depth < 100) { - info->depth++; - outs() << "Meta Class\n"; - print_class64_t(c.isa + isa_n_value, info); - } -} - -static void print_class32_t(uint32_t p, struct DisassembleInfo *info) { - struct class32_t c; - const char *r; - uint32_t offset, left; - SectionRef S; - const char *name; - - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&c, '\0', sizeof(struct class32_t)); - if (left < sizeof(struct class32_t)) { - memcpy(&c, r, left); - outs() << " (class_t entends past the end of the section)\n"; - } else - memcpy(&c, r, sizeof(struct class32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(c); - - outs() << " isa " << format("0x%" PRIx32, c.isa); - name = - get_symbol_32(offset + offsetof(struct class32_t, isa), S, info, c.isa); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - outs() << " superclass " << format("0x%" PRIx32, c.superclass); - name = get_symbol_32(offset + offsetof(struct class32_t, superclass), S, info, - c.superclass); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - outs() << " cache " << format("0x%" PRIx32, c.cache); - name = get_symbol_32(offset + offsetof(struct class32_t, cache), S, info, - c.cache); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - outs() << " vtable " << format("0x%" PRIx32, c.vtable); - name = get_symbol_32(offset + offsetof(struct class32_t, vtable), S, info, - c.vtable); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - name = - get_symbol_32(offset + offsetof(struct class32_t, data), S, info, c.data); - outs() << " data " << format("0x%" PRIx32, c.data) - << " (struct class_ro_t *)"; - - // This is a Swift class if some of the low bits of the pointer are set. - if (c.data & 0x3) - outs() << " Swift class"; - outs() << "\n"; - bool is_meta_class; - if (!print_class_ro32_t(c.data & ~0x3, info, is_meta_class)) - return; - - if (!is_meta_class) { - outs() << "Meta Class\n"; - print_class32_t(c.isa, info); - } -} - -static void print_objc_class_t(struct objc_class_t *objc_class, - struct DisassembleInfo *info) { - uint32_t offset, left, xleft; - const char *name, *p, *ivar_list; - SectionRef S; - int32_t i; - struct objc_ivar_list_t objc_ivar_list; - struct objc_ivar_t ivar; - - outs() << "\t\t isa " << format("0x%08" PRIx32, objc_class->isa); - if (info->verbose && CLS_GETINFO(objc_class, CLS_META)) { - name = get_pointer_32(objc_class->isa, offset, left, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", left, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t super_class " - << format("0x%08" PRIx32, objc_class->super_class); - if (info->verbose) { - name = get_pointer_32(objc_class->super_class, offset, left, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", left, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t\t name " << format("0x%08" PRIx32, objc_class->name); - if (info->verbose) { - name = get_pointer_32(objc_class->name, offset, left, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", left, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t\t version " << format("0x%08" PRIx32, objc_class->version) - << "\n"; - - outs() << "\t\t info " << format("0x%08" PRIx32, objc_class->info); - if (info->verbose) { - if (CLS_GETINFO(objc_class, CLS_CLASS)) - outs() << " CLS_CLASS"; - else if (CLS_GETINFO(objc_class, CLS_META)) - outs() << " CLS_META"; - } - outs() << "\n"; - - outs() << "\t instance_size " - << format("0x%08" PRIx32, objc_class->instance_size) << "\n"; - - p = get_pointer_32(objc_class->ivars, offset, left, S, info, true); - outs() << "\t\t ivars " << format("0x%08" PRIx32, objc_class->ivars); - if (p != nullptr) { - if (left > sizeof(struct objc_ivar_list_t)) { - outs() << "\n"; - memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t)); - } else { - outs() << " (entends past the end of the section)\n"; - memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t)); - memcpy(&objc_ivar_list, p, left); - } - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(objc_ivar_list); - outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n"; - ivar_list = p + sizeof(struct objc_ivar_list_t); - for (i = 0; i < objc_ivar_list.ivar_count; i++) { - if ((i + 1) * sizeof(struct objc_ivar_t) > left) { - outs() << "\t\t remaining ivar's extend past the of the section\n"; - break; - } - memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t), - sizeof(struct objc_ivar_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(ivar); - - outs() << "\t\t\tivar_name " << format("0x%08" PRIx32, ivar.ivar_name); - if (info->verbose) { - name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", xleft, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t\t\tivar_type " << format("0x%08" PRIx32, ivar.ivar_type); - if (info->verbose) { - name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", xleft, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t\t ivar_offset " - << format("0x%08" PRIx32, ivar.ivar_offset) << "\n"; - } - } else { - outs() << " (not in an __OBJC section)\n"; - } - - outs() << "\t\t methods " << format("0x%08" PRIx32, objc_class->methodLists); - if (print_method_list(objc_class->methodLists, info)) - outs() << " (not in an __OBJC section)\n"; - - outs() << "\t\t cache " << format("0x%08" PRIx32, objc_class->cache) - << "\n"; - - outs() << "\t\tprotocols " << format("0x%08" PRIx32, objc_class->protocols); - if (print_protocol_list(objc_class->protocols, 16, info)) - outs() << " (not in an __OBJC section)\n"; -} - -static void print_objc_objc_category_t(struct objc_category_t *objc_category, - struct DisassembleInfo *info) { - uint32_t offset, left; - const char *name; - SectionRef S; - - outs() << "\t category name " - << format("0x%08" PRIx32, objc_category->category_name); - if (info->verbose) { - name = get_pointer_32(objc_category->category_name, offset, left, S, info, - true); - if (name != nullptr) - outs() << format(" %.*s", left, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t\t class name " - << format("0x%08" PRIx32, objc_category->class_name); - if (info->verbose) { - name = - get_pointer_32(objc_category->class_name, offset, left, S, info, true); - if (name != nullptr) - outs() << format(" %.*s", left, name); - else - outs() << " (not in an __OBJC section)"; - } - outs() << "\n"; - - outs() << "\t instance methods " - << format("0x%08" PRIx32, objc_category->instance_methods); - if (print_method_list(objc_category->instance_methods, info)) - outs() << " (not in an __OBJC section)\n"; - - outs() << "\t class methods " - << format("0x%08" PRIx32, objc_category->class_methods); - if (print_method_list(objc_category->class_methods, info)) - outs() << " (not in an __OBJC section)\n"; -} - -static void print_category64_t(uint64_t p, struct DisassembleInfo *info) { - struct category64_t c; - const char *r; - uint32_t offset, xoffset, left; - SectionRef S, xS; - const char *name, *sym_name; - uint64_t n_value; - - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&c, '\0', sizeof(struct category64_t)); - if (left < sizeof(struct category64_t)) { - memcpy(&c, r, left); - outs() << " (category_t entends past the end of the section)\n"; - } else - memcpy(&c, r, sizeof(struct category64_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(c); - - outs() << " name "; - sym_name = get_symbol_64(offset + offsetof(struct category64_t, name), S, - info, n_value, c.name); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (c.name != 0) - outs() << " + " << format("0x%" PRIx64, c.name); - } else - outs() << format("0x%" PRIx64, c.name); - name = get_pointer_64(c.name + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - outs() << " cls "; - sym_name = get_symbol_64(offset + offsetof(struct category64_t, cls), S, info, - n_value, c.cls); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (c.cls != 0) - outs() << " + " << format("0x%" PRIx64, c.cls); - } else - outs() << format("0x%" PRIx64, c.cls); - outs() << "\n"; - if (c.cls + n_value != 0) - print_class64_t(c.cls + n_value, info); - - outs() << " instanceMethods "; - sym_name = - get_symbol_64(offset + offsetof(struct category64_t, instanceMethods), S, - info, n_value, c.instanceMethods); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (c.instanceMethods != 0) - outs() << " + " << format("0x%" PRIx64, c.instanceMethods); - } else - outs() << format("0x%" PRIx64, c.instanceMethods); - outs() << "\n"; - if (c.instanceMethods + n_value != 0) - print_method_list64_t(c.instanceMethods + n_value, info, ""); - - outs() << " classMethods "; - sym_name = get_symbol_64(offset + offsetof(struct category64_t, classMethods), - S, info, n_value, c.classMethods); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (c.classMethods != 0) - outs() << " + " << format("0x%" PRIx64, c.classMethods); - } else - outs() << format("0x%" PRIx64, c.classMethods); - outs() << "\n"; - if (c.classMethods + n_value != 0) - print_method_list64_t(c.classMethods + n_value, info, ""); - - outs() << " protocols "; - sym_name = get_symbol_64(offset + offsetof(struct category64_t, protocols), S, - info, n_value, c.protocols); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (c.protocols != 0) - outs() << " + " << format("0x%" PRIx64, c.protocols); - } else - outs() << format("0x%" PRIx64, c.protocols); - outs() << "\n"; - if (c.protocols + n_value != 0) - print_protocol_list64_t(c.protocols + n_value, info); - - outs() << "instanceProperties "; - sym_name = - get_symbol_64(offset + offsetof(struct category64_t, instanceProperties), - S, info, n_value, c.instanceProperties); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (c.instanceProperties != 0) - outs() << " + " << format("0x%" PRIx64, c.instanceProperties); - } else - outs() << format("0x%" PRIx64, c.instanceProperties); - outs() << "\n"; - if (c.instanceProperties + n_value != 0) - print_objc_property_list64(c.instanceProperties + n_value, info); -} - -static void print_category32_t(uint32_t p, struct DisassembleInfo *info) { - struct category32_t c; - const char *r; - uint32_t offset, left; - SectionRef S, xS; - const char *name; - - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&c, '\0', sizeof(struct category32_t)); - if (left < sizeof(struct category32_t)) { - memcpy(&c, r, left); - outs() << " (category_t entends past the end of the section)\n"; - } else - memcpy(&c, r, sizeof(struct category32_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(c); - - outs() << " name " << format("0x%" PRIx32, c.name); - name = get_symbol_32(offset + offsetof(struct category32_t, name), S, info, - c.name); - if (name) - outs() << " " << name; - outs() << "\n"; - - outs() << " cls " << format("0x%" PRIx32, c.cls) << "\n"; - if (c.cls != 0) - print_class32_t(c.cls, info); - outs() << " instanceMethods " << format("0x%" PRIx32, c.instanceMethods) - << "\n"; - if (c.instanceMethods != 0) - print_method_list32_t(c.instanceMethods, info, ""); - outs() << " classMethods " << format("0x%" PRIx32, c.classMethods) - << "\n"; - if (c.classMethods != 0) - print_method_list32_t(c.classMethods, info, ""); - outs() << " protocols " << format("0x%" PRIx32, c.protocols) << "\n"; - if (c.protocols != 0) - print_protocol_list32_t(c.protocols, info); - outs() << "instanceProperties " << format("0x%" PRIx32, c.instanceProperties) - << "\n"; - if (c.instanceProperties != 0) - print_objc_property_list32(c.instanceProperties, info); -} - -static void print_message_refs64(SectionRef S, struct DisassembleInfo *info) { - uint32_t i, left, offset, xoffset; - uint64_t p, n_value; - struct message_ref64 mr; - const char *name, *sym_name; - const char *r; - SectionRef xS; - - if (S == SectionRef()) - return; - - StringRef SectName; - S.getName(SectName); - DataRefImpl Ref = S.getRawDataRefImpl(); - StringRef SegName = info->O->getSectionFinalSegmentName(Ref); - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - offset = 0; - for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { - p = S.getAddress() + i; - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&mr, '\0', sizeof(struct message_ref64)); - if (left < sizeof(struct message_ref64)) { - memcpy(&mr, r, left); - outs() << " (message_ref entends past the end of the section)\n"; - } else - memcpy(&mr, r, sizeof(struct message_ref64)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(mr); - - outs() << " imp "; - name = get_symbol_64(offset + offsetof(struct message_ref64, imp), S, info, - n_value, mr.imp); - if (n_value != 0) { - outs() << format("0x%" PRIx64, n_value) << " "; - if (mr.imp != 0) - outs() << "+ " << format("0x%" PRIx64, mr.imp) << " "; - } else - outs() << format("0x%" PRIx64, mr.imp) << " "; - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - outs() << " sel "; - sym_name = get_symbol_64(offset + offsetof(struct message_ref64, sel), S, - info, n_value, mr.sel); - if (n_value != 0) { - if (info->verbose && sym_name != nullptr) - outs() << sym_name; - else - outs() << format("0x%" PRIx64, n_value); - if (mr.sel != 0) - outs() << " + " << format("0x%" PRIx64, mr.sel); - } else - outs() << format("0x%" PRIx64, mr.sel); - name = get_pointer_64(mr.sel + n_value, xoffset, left, xS, info); - if (name != nullptr) - outs() << format(" %.*s", left, name); - outs() << "\n"; - - offset += sizeof(struct message_ref64); - } -} - -static void print_message_refs32(SectionRef S, struct DisassembleInfo *info) { - uint32_t i, left, offset, xoffset, p; - struct message_ref32 mr; - const char *name, *r; - SectionRef xS; - - if (S == SectionRef()) - return; - - StringRef SectName; - S.getName(SectName); - DataRefImpl Ref = S.getRawDataRefImpl(); - StringRef SegName = info->O->getSectionFinalSegmentName(Ref); - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - offset = 0; - for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { - p = S.getAddress() + i; - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&mr, '\0', sizeof(struct message_ref32)); - if (left < sizeof(struct message_ref32)) { - memcpy(&mr, r, left); - outs() << " (message_ref entends past the end of the section)\n"; - } else - memcpy(&mr, r, sizeof(struct message_ref32)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(mr); - - outs() << " imp " << format("0x%" PRIx32, mr.imp); - name = get_symbol_32(offset + offsetof(struct message_ref32, imp), S, info, - mr.imp); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - outs() << " sel " << format("0x%" PRIx32, mr.sel); - name = get_pointer_32(mr.sel, xoffset, left, xS, info); - if (name != nullptr) - outs() << " " << name; - outs() << "\n"; - - offset += sizeof(struct message_ref32); - } -} - -static void print_image_info64(SectionRef S, struct DisassembleInfo *info) { - uint32_t left, offset, swift_version; - uint64_t p; - struct objc_image_info64 o; - const char *r; - - if (S == SectionRef()) - return; - - StringRef SectName; - S.getName(SectName); - DataRefImpl Ref = S.getRawDataRefImpl(); - StringRef SegName = info->O->getSectionFinalSegmentName(Ref); - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - p = S.getAddress(); - r = get_pointer_64(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&o, '\0', sizeof(struct objc_image_info64)); - if (left < sizeof(struct objc_image_info64)) { - memcpy(&o, r, left); - outs() << " (objc_image_info entends past the end of the section)\n"; - } else - memcpy(&o, r, sizeof(struct objc_image_info64)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(o); - outs() << " version " << o.version << "\n"; - outs() << " flags " << format("0x%" PRIx32, o.flags); - if (o.flags & OBJC_IMAGE_IS_REPLACEMENT) - outs() << " OBJC_IMAGE_IS_REPLACEMENT"; - if (o.flags & OBJC_IMAGE_SUPPORTS_GC) - outs() << " OBJC_IMAGE_SUPPORTS_GC"; - if (o.flags & OBJC_IMAGE_IS_SIMULATED) - outs() << " OBJC_IMAGE_IS_SIMULATED"; - if (o.flags & OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES) - outs() << " OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES"; - swift_version = (o.flags >> 8) & 0xff; - if (swift_version != 0) { - if (swift_version == 1) - outs() << " Swift 1.0"; - else if (swift_version == 2) - outs() << " Swift 1.1"; - else if(swift_version == 3) - outs() << " Swift 2.0"; - else if(swift_version == 4) - outs() << " Swift 3.0"; - else if(swift_version == 5) - outs() << " Swift 4.0"; - else if(swift_version == 6) - outs() << " Swift 4.1/Swift 4.2"; - else if(swift_version == 7) - outs() << " Swift 5 or later"; - else - outs() << " unknown future Swift version (" << swift_version << ")"; - } - outs() << "\n"; -} - -static void print_image_info32(SectionRef S, struct DisassembleInfo *info) { - uint32_t left, offset, swift_version, p; - struct objc_image_info32 o; - const char *r; - - if (S == SectionRef()) - return; - - StringRef SectName; - S.getName(SectName); - DataRefImpl Ref = S.getRawDataRefImpl(); - StringRef SegName = info->O->getSectionFinalSegmentName(Ref); - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - p = S.getAddress(); - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&o, '\0', sizeof(struct objc_image_info32)); - if (left < sizeof(struct objc_image_info32)) { - memcpy(&o, r, left); - outs() << " (objc_image_info entends past the end of the section)\n"; - } else - memcpy(&o, r, sizeof(struct objc_image_info32)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(o); - outs() << " version " << o.version << "\n"; - outs() << " flags " << format("0x%" PRIx32, o.flags); - if (o.flags & OBJC_IMAGE_IS_REPLACEMENT) - outs() << " OBJC_IMAGE_IS_REPLACEMENT"; - if (o.flags & OBJC_IMAGE_SUPPORTS_GC) - outs() << " OBJC_IMAGE_SUPPORTS_GC"; - swift_version = (o.flags >> 8) & 0xff; - if (swift_version != 0) { - if (swift_version == 1) - outs() << " Swift 1.0"; - else if (swift_version == 2) - outs() << " Swift 1.1"; - else if(swift_version == 3) - outs() << " Swift 2.0"; - else if(swift_version == 4) - outs() << " Swift 3.0"; - else if(swift_version == 5) - outs() << " Swift 4.0"; - else if(swift_version == 6) - outs() << " Swift 4.1/Swift 4.2"; - else if(swift_version == 7) - outs() << " Swift 5 or later"; - else - outs() << " unknown future Swift version (" << swift_version << ")"; - } - outs() << "\n"; -} - -static void print_image_info(SectionRef S, struct DisassembleInfo *info) { - uint32_t left, offset, p; - struct imageInfo_t o; - const char *r; - - StringRef SectName; - S.getName(SectName); - DataRefImpl Ref = S.getRawDataRefImpl(); - StringRef SegName = info->O->getSectionFinalSegmentName(Ref); - outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; - p = S.getAddress(); - r = get_pointer_32(p, offset, left, S, info); - if (r == nullptr) - return; - memset(&o, '\0', sizeof(struct imageInfo_t)); - if (left < sizeof(struct imageInfo_t)) { - memcpy(&o, r, left); - outs() << " (imageInfo entends past the end of the section)\n"; - } else - memcpy(&o, r, sizeof(struct imageInfo_t)); - if (info->O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(o); - outs() << " version " << o.version << "\n"; - outs() << " flags " << format("0x%" PRIx32, o.flags); - if (o.flags & 0x1) - outs() << " F&C"; - if (o.flags & 0x2) - outs() << " GC"; - if (o.flags & 0x4) - outs() << " GC-only"; - else - outs() << " RR"; - outs() << "\n"; -} - -static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) { - SymbolAddressMap AddrMap; - if (verbose) - CreateSymbolAddressMap(O, &AddrMap); - - std::vector<SectionRef> Sections; - for (const SectionRef &Section : O->sections()) { - StringRef SectName; - Section.getName(SectName); - Sections.push_back(Section); - } - - struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); - - SectionRef CL = get_section(O, "__OBJC2", "__class_list"); - if (CL == SectionRef()) - CL = get_section(O, "__DATA", "__objc_classlist"); - if (CL == SectionRef()) - CL = get_section(O, "__DATA_CONST", "__objc_classlist"); - if (CL == SectionRef()) - CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); - info.S = CL; - walk_pointer_list_64("class", CL, O, &info, print_class64_t); - - SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); - if (CR == SectionRef()) - CR = get_section(O, "__DATA", "__objc_classrefs"); - if (CR == SectionRef()) - CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); - if (CR == SectionRef()) - CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); - info.S = CR; - walk_pointer_list_64("class refs", CR, O, &info, nullptr); - - SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); - if (SR == SectionRef()) - SR = get_section(O, "__DATA", "__objc_superrefs"); - if (SR == SectionRef()) - SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); - if (SR == SectionRef()) - SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); - info.S = SR; - walk_pointer_list_64("super refs", SR, O, &info, nullptr); - - SectionRef CA = get_section(O, "__OBJC2", "__category_list"); - if (CA == SectionRef()) - CA = get_section(O, "__DATA", "__objc_catlist"); - if (CA == SectionRef()) - CA = get_section(O, "__DATA_CONST", "__objc_catlist"); - if (CA == SectionRef()) - CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); - info.S = CA; - walk_pointer_list_64("category", CA, O, &info, print_category64_t); - - SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); - if (PL == SectionRef()) - PL = get_section(O, "__DATA", "__objc_protolist"); - if (PL == SectionRef()) - PL = get_section(O, "__DATA_CONST", "__objc_protolist"); - if (PL == SectionRef()) - PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); - info.S = PL; - walk_pointer_list_64("protocol", PL, O, &info, nullptr); - - SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); - if (MR == SectionRef()) - MR = get_section(O, "__DATA", "__objc_msgrefs"); - if (MR == SectionRef()) - MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); - if (MR == SectionRef()) - MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); - info.S = MR; - print_message_refs64(MR, &info); - - SectionRef II = get_section(O, "__OBJC2", "__image_info"); - if (II == SectionRef()) - II = get_section(O, "__DATA", "__objc_imageinfo"); - if (II == SectionRef()) - II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); - if (II == SectionRef()) - II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); - info.S = II; - print_image_info64(II, &info); -} - -static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) { - SymbolAddressMap AddrMap; - if (verbose) - CreateSymbolAddressMap(O, &AddrMap); - - std::vector<SectionRef> Sections; - for (const SectionRef &Section : O->sections()) { - StringRef SectName; - Section.getName(SectName); - Sections.push_back(Section); - } - - struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); - - SectionRef CL = get_section(O, "__OBJC2", "__class_list"); - if (CL == SectionRef()) - CL = get_section(O, "__DATA", "__objc_classlist"); - if (CL == SectionRef()) - CL = get_section(O, "__DATA_CONST", "__objc_classlist"); - if (CL == SectionRef()) - CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); - info.S = CL; - walk_pointer_list_32("class", CL, O, &info, print_class32_t); - - SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); - if (CR == SectionRef()) - CR = get_section(O, "__DATA", "__objc_classrefs"); - if (CR == SectionRef()) - CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); - if (CR == SectionRef()) - CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); - info.S = CR; - walk_pointer_list_32("class refs", CR, O, &info, nullptr); - - SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); - if (SR == SectionRef()) - SR = get_section(O, "__DATA", "__objc_superrefs"); - if (SR == SectionRef()) - SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); - if (SR == SectionRef()) - SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); - info.S = SR; - walk_pointer_list_32("super refs", SR, O, &info, nullptr); - - SectionRef CA = get_section(O, "__OBJC2", "__category_list"); - if (CA == SectionRef()) - CA = get_section(O, "__DATA", "__objc_catlist"); - if (CA == SectionRef()) - CA = get_section(O, "__DATA_CONST", "__objc_catlist"); - if (CA == SectionRef()) - CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); - info.S = CA; - walk_pointer_list_32("category", CA, O, &info, print_category32_t); - - SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); - if (PL == SectionRef()) - PL = get_section(O, "__DATA", "__objc_protolist"); - if (PL == SectionRef()) - PL = get_section(O, "__DATA_CONST", "__objc_protolist"); - if (PL == SectionRef()) - PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); - info.S = PL; - walk_pointer_list_32("protocol", PL, O, &info, nullptr); - - SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); - if (MR == SectionRef()) - MR = get_section(O, "__DATA", "__objc_msgrefs"); - if (MR == SectionRef()) - MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); - if (MR == SectionRef()) - MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); - info.S = MR; - print_message_refs32(MR, &info); - - SectionRef II = get_section(O, "__OBJC2", "__image_info"); - if (II == SectionRef()) - II = get_section(O, "__DATA", "__objc_imageinfo"); - if (II == SectionRef()) - II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); - if (II == SectionRef()) - II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); - info.S = II; - print_image_info32(II, &info); -} - -static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) { - uint32_t i, j, p, offset, xoffset, left, defs_left, def; - const char *r, *name, *defs; - struct objc_module_t module; - SectionRef S, xS; - struct objc_symtab_t symtab; - struct objc_class_t objc_class; - struct objc_category_t objc_category; - - outs() << "Objective-C segment\n"; - S = get_section(O, "__OBJC", "__module_info"); - if (S == SectionRef()) - return false; - - SymbolAddressMap AddrMap; - if (verbose) - CreateSymbolAddressMap(O, &AddrMap); - - std::vector<SectionRef> Sections; - for (const SectionRef &Section : O->sections()) { - StringRef SectName; - Section.getName(SectName); - Sections.push_back(Section); - } - - struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); - - for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) { - p = S.getAddress() + i; - r = get_pointer_32(p, offset, left, S, &info, true); - if (r == nullptr) - return true; - memset(&module, '\0', sizeof(struct objc_module_t)); - if (left < sizeof(struct objc_module_t)) { - memcpy(&module, r, left); - outs() << " (module extends past end of __module_info section)\n"; - } else - memcpy(&module, r, sizeof(struct objc_module_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(module); - - outs() << "Module " << format("0x%" PRIx32, p) << "\n"; - outs() << " version " << module.version << "\n"; - outs() << " size " << module.size << "\n"; - outs() << " name "; - name = get_pointer_32(module.name, xoffset, left, xS, &info, true); - if (name != nullptr) - outs() << format("%.*s", left, name); - else - outs() << format("0x%08" PRIx32, module.name) - << "(not in an __OBJC section)"; - outs() << "\n"; - - r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true); - if (module.symtab == 0 || r == nullptr) { - outs() << " symtab " << format("0x%08" PRIx32, module.symtab) - << " (not in an __OBJC section)\n"; - continue; - } - outs() << " symtab " << format("0x%08" PRIx32, module.symtab) << "\n"; - memset(&symtab, '\0', sizeof(struct objc_symtab_t)); - defs_left = 0; - defs = nullptr; - if (left < sizeof(struct objc_symtab_t)) { - memcpy(&symtab, r, left); - outs() << "\tsymtab extends past end of an __OBJC section)\n"; - } else { - memcpy(&symtab, r, sizeof(struct objc_symtab_t)); - if (left > sizeof(struct objc_symtab_t)) { - defs_left = left - sizeof(struct objc_symtab_t); - defs = r + sizeof(struct objc_symtab_t); - } - } - if (O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(symtab); - - outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n"; - r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true); - outs() << "\trefs " << format("0x%08" PRIx32, symtab.refs); - if (r == nullptr) - outs() << " (not in an __OBJC section)"; - outs() << "\n"; - outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n"; - outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n"; - if (symtab.cls_def_cnt > 0) - outs() << "\tClass Definitions\n"; - for (j = 0; j < symtab.cls_def_cnt; j++) { - if ((j + 1) * sizeof(uint32_t) > defs_left) { - outs() << "\t(remaining class defs entries entends past the end of the " - << "section)\n"; - break; - } - memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(def); - - r = get_pointer_32(def, xoffset, left, xS, &info, true); - outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32, def); - if (r != nullptr) { - if (left > sizeof(struct objc_class_t)) { - outs() << "\n"; - memcpy(&objc_class, r, sizeof(struct objc_class_t)); - } else { - outs() << " (entends past the end of the section)\n"; - memset(&objc_class, '\0', sizeof(struct objc_class_t)); - memcpy(&objc_class, r, left); - } - if (O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(objc_class); - print_objc_class_t(&objc_class, &info); - } else { - outs() << "(not in an __OBJC section)\n"; - } - - if (CLS_GETINFO(&objc_class, CLS_CLASS)) { - outs() << "\tMeta Class"; - r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true); - if (r != nullptr) { - if (left > sizeof(struct objc_class_t)) { - outs() << "\n"; - memcpy(&objc_class, r, sizeof(struct objc_class_t)); - } else { - outs() << " (entends past the end of the section)\n"; - memset(&objc_class, '\0', sizeof(struct objc_class_t)); - memcpy(&objc_class, r, left); - } - if (O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(objc_class); - print_objc_class_t(&objc_class, &info); - } else { - outs() << "(not in an __OBJC section)\n"; - } - } - } - if (symtab.cat_def_cnt > 0) - outs() << "\tCategory Definitions\n"; - for (j = 0; j < symtab.cat_def_cnt; j++) { - if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) { - outs() << "\t(remaining category defs entries entends past the end of " - << "the section)\n"; - break; - } - memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t), - sizeof(uint32_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - sys::swapByteOrder(def); - - r = get_pointer_32(def, xoffset, left, xS, &info, true); - outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] " - << format("0x%08" PRIx32, def); - if (r != nullptr) { - if (left > sizeof(struct objc_category_t)) { - outs() << "\n"; - memcpy(&objc_category, r, sizeof(struct objc_category_t)); - } else { - outs() << " (entends past the end of the section)\n"; - memset(&objc_category, '\0', sizeof(struct objc_category_t)); - memcpy(&objc_category, r, left); - } - if (O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(objc_category); - print_objc_objc_category_t(&objc_category, &info); - } else { - outs() << "(not in an __OBJC section)\n"; - } - } - } - const SectionRef II = get_section(O, "__OBJC", "__image_info"); - if (II != SectionRef()) - print_image_info(II, &info); - - return true; -} - -static void DumpProtocolSection(MachOObjectFile *O, const char *sect, - uint32_t size, uint32_t addr) { - SymbolAddressMap AddrMap; - CreateSymbolAddressMap(O, &AddrMap); - - std::vector<SectionRef> Sections; - for (const SectionRef &Section : O->sections()) { - StringRef SectName; - Section.getName(SectName); - Sections.push_back(Section); - } - - struct DisassembleInfo info(O, &AddrMap, &Sections, true); - - const char *p; - struct objc_protocol_t protocol; - uint32_t left, paddr; - for (p = sect; p < sect + size; p += sizeof(struct objc_protocol_t)) { - memset(&protocol, '\0', sizeof(struct objc_protocol_t)); - left = size - (p - sect); - if (left < sizeof(struct objc_protocol_t)) { - outs() << "Protocol extends past end of __protocol section\n"; - memcpy(&protocol, p, left); - } else - memcpy(&protocol, p, sizeof(struct objc_protocol_t)); - if (O->isLittleEndian() != sys::IsLittleEndianHost) - swapStruct(protocol); - paddr = addr + (p - sect); - outs() << "Protocol " << format("0x%" PRIx32, paddr); - if (print_protocol(paddr, 0, &info)) - outs() << "(not in an __OBJC section)\n"; - } -} - -#ifdef HAVE_LIBXAR -inline void swapStruct(struct xar_header &xar) { - sys::swapByteOrder(xar.magic); - sys::swapByteOrder(xar.size); - sys::swapByteOrder(xar.version); - sys::swapByteOrder(xar.toc_length_compressed); - sys::swapByteOrder(xar.toc_length_uncompressed); - sys::swapByteOrder(xar.cksum_alg); -} - -static void PrintModeVerbose(uint32_t mode) { - switch(mode & S_IFMT){ - case S_IFDIR: - outs() << "d"; - break; - case S_IFCHR: - outs() << "c"; - break; - case S_IFBLK: - outs() << "b"; - break; - case S_IFREG: - outs() << "-"; - break; - case S_IFLNK: - outs() << "l"; - break; - case S_IFSOCK: - outs() << "s"; - break; - default: - outs() << "?"; - break; - } - - /* owner permissions */ - if(mode & S_IREAD) - outs() << "r"; - else - outs() << "-"; - if(mode & S_IWRITE) - outs() << "w"; - else - outs() << "-"; - if(mode & S_ISUID) - outs() << "s"; - else if(mode & S_IEXEC) - outs() << "x"; - else - outs() << "-"; - - /* group permissions */ - if(mode & (S_IREAD >> 3)) - outs() << "r"; - else - outs() << "-"; - if(mode & (S_IWRITE >> 3)) - outs() << "w"; - else - outs() << "-"; - if(mode & S_ISGID) - outs() << "s"; - else if(mode & (S_IEXEC >> 3)) - outs() << "x"; - else - outs() << "-"; - - /* other permissions */ - if(mode & (S_IREAD >> 6)) - outs() << "r"; - else - outs() << "-"; - if(mode & (S_IWRITE >> 6)) - outs() << "w"; - else - outs() << "-"; - if(mode & S_ISVTX) - outs() << "t"; - else if(mode & (S_IEXEC >> 6)) - outs() << "x"; - else - outs() << "-"; -} - -static void PrintXarFilesSummary(const char *XarFilename, xar_t xar) { - xar_file_t xf; - const char *key, *type, *mode, *user, *group, *size, *mtime, *name, *m; - char *endp; - uint32_t mode_value; - - ScopedXarIter xi; - if (!xi) { - WithColor::error(errs(), "llvm-objdump") - << "can't obtain an xar iterator for xar archive " << XarFilename - << "\n"; - return; - } - - // Go through the xar's files. - for (xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)) { - ScopedXarIter xp; - if(!xp){ - WithColor::error(errs(), "llvm-objdump") - << "can't obtain an xar iterator for xar archive " << XarFilename - << "\n"; - return; - } - type = nullptr; - mode = nullptr; - user = nullptr; - group = nullptr; - size = nullptr; - mtime = nullptr; - name = nullptr; - for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ - const char *val = nullptr; - xar_prop_get(xf, key, &val); -#if 0 // Useful for debugging. - outs() << "key: " << key << " value: " << val << "\n"; -#endif - if(strcmp(key, "type") == 0) - type = val; - if(strcmp(key, "mode") == 0) - mode = val; - if(strcmp(key, "user") == 0) - user = val; - if(strcmp(key, "group") == 0) - group = val; - if(strcmp(key, "data/size") == 0) - size = val; - if(strcmp(key, "mtime") == 0) - mtime = val; - if(strcmp(key, "name") == 0) - name = val; - } - if(mode != nullptr){ - mode_value = strtoul(mode, &endp, 8); - if(*endp != '\0') - outs() << "(mode: \"" << mode << "\" contains non-octal chars) "; - if(strcmp(type, "file") == 0) - mode_value |= S_IFREG; - PrintModeVerbose(mode_value); - outs() << " "; - } - if(user != nullptr) - outs() << format("%10s/", user); - if(group != nullptr) - outs() << format("%-10s ", group); - if(size != nullptr) - outs() << format("%7s ", size); - if(mtime != nullptr){ - for(m = mtime; *m != 'T' && *m != '\0'; m++) - outs() << *m; - if(*m == 'T') - m++; - outs() << " "; - for( ; *m != 'Z' && *m != '\0'; m++) - outs() << *m; - outs() << " "; - } - if(name != nullptr) - outs() << name; - outs() << "\n"; - } -} - -static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, - uint32_t size, bool verbose, - bool PrintXarHeader, bool PrintXarFileHeaders, - std::string XarMemberName) { - if(size < sizeof(struct xar_header)) { - outs() << "size of (__LLVM,__bundle) section too small (smaller than size " - "of struct xar_header)\n"; - return; - } - struct xar_header XarHeader; - memcpy(&XarHeader, sect, sizeof(struct xar_header)); - if (sys::IsLittleEndianHost) - swapStruct(XarHeader); - if (PrintXarHeader) { - if (!XarMemberName.empty()) - outs() << "In xar member " << XarMemberName << ": "; - else - outs() << "For (__LLVM,__bundle) section: "; - outs() << "xar header\n"; - if (XarHeader.magic == XAR_HEADER_MAGIC) - outs() << " magic XAR_HEADER_MAGIC\n"; - else - outs() << " magic " - << format_hex(XarHeader.magic, 10, true) - << " (not XAR_HEADER_MAGIC)\n"; - outs() << " size " << XarHeader.size << "\n"; - outs() << " version " << XarHeader.version << "\n"; - outs() << " toc_length_compressed " << XarHeader.toc_length_compressed - << "\n"; - outs() << "toc_length_uncompressed " << XarHeader.toc_length_uncompressed - << "\n"; - outs() << " cksum_alg "; - switch (XarHeader.cksum_alg) { - case XAR_CKSUM_NONE: - outs() << "XAR_CKSUM_NONE\n"; - break; - case XAR_CKSUM_SHA1: - outs() << "XAR_CKSUM_SHA1\n"; - break; - case XAR_CKSUM_MD5: - outs() << "XAR_CKSUM_MD5\n"; - break; -#ifdef XAR_CKSUM_SHA256 - case XAR_CKSUM_SHA256: - outs() << "XAR_CKSUM_SHA256\n"; - break; -#endif -#ifdef XAR_CKSUM_SHA512 - case XAR_CKSUM_SHA512: - outs() << "XAR_CKSUM_SHA512\n"; - break; -#endif - default: - outs() << XarHeader.cksum_alg << "\n"; - } - } - - SmallString<128> XarFilename; - int FD; - std::error_code XarEC = - sys::fs::createTemporaryFile("llvm-objdump", "xar", FD, XarFilename); - if (XarEC) { - WithColor::error(errs(), "llvm-objdump") << XarEC.message() << "\n"; - return; - } - ToolOutputFile XarFile(XarFilename, FD); - raw_fd_ostream &XarOut = XarFile.os(); - StringRef XarContents(sect, size); - XarOut << XarContents; - XarOut.close(); - if (XarOut.has_error()) - return; - - ScopedXarFile xar(XarFilename.c_str(), READ); - if (!xar) { - WithColor::error(errs(), "llvm-objdump") - << "can't create temporary xar archive " << XarFilename << "\n"; - return; - } - - SmallString<128> TocFilename; - std::error_code TocEC = - sys::fs::createTemporaryFile("llvm-objdump", "toc", TocFilename); - if (TocEC) { - WithColor::error(errs(), "llvm-objdump") << TocEC.message() << "\n"; - return; - } - xar_serialize(xar, TocFilename.c_str()); - - if (PrintXarFileHeaders) { - if (!XarMemberName.empty()) - outs() << "In xar member " << XarMemberName << ": "; - else - outs() << "For (__LLVM,__bundle) section: "; - outs() << "xar archive files:\n"; - PrintXarFilesSummary(XarFilename.c_str(), xar); - } - - ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = - MemoryBuffer::getFileOrSTDIN(TocFilename.c_str()); - if (std::error_code EC = FileOrErr.getError()) { - WithColor::error(errs(), "llvm-objdump") << EC.message() << "\n"; - return; - } - std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get(); - - if (!XarMemberName.empty()) - outs() << "In xar member " << XarMemberName << ": "; - else - outs() << "For (__LLVM,__bundle) section: "; - outs() << "xar table of contents:\n"; - outs() << Buffer->getBuffer() << "\n"; - - // TODO: Go through the xar's files. - ScopedXarIter xi; - if(!xi){ - WithColor::error(errs(), "llvm-objdump") - << "can't obtain an xar iterator for xar archive " - << XarFilename.c_str() << "\n"; - return; - } - for(xar_file_t xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)){ - const char *key; - const char *member_name, *member_type, *member_size_string; - size_t member_size; - - ScopedXarIter xp; - if(!xp){ - WithColor::error(errs(), "llvm-objdump") - << "can't obtain an xar iterator for xar archive " - << XarFilename.c_str() << "\n"; - return; - } - member_name = NULL; - member_type = NULL; - member_size_string = NULL; - for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ - const char *val = nullptr; - xar_prop_get(xf, key, &val); -#if 0 // Useful for debugging. - outs() << "key: " << key << " value: " << val << "\n"; -#endif - if (strcmp(key, "name") == 0) - member_name = val; - if (strcmp(key, "type") == 0) - member_type = val; - if (strcmp(key, "data/size") == 0) - member_size_string = val; - } - /* - * If we find a file with a name, date/size and type properties - * and with the type being "file" see if that is a xar file. - */ - if (member_name != NULL && member_type != NULL && - strcmp(member_type, "file") == 0 && - member_size_string != NULL){ - // Extract the file into a buffer. - char *endptr; - member_size = strtoul(member_size_string, &endptr, 10); - if (*endptr == '\0' && member_size != 0) { - char *buffer; - if (xar_extract_tobuffersz(xar, xf, &buffer, &member_size) == 0) { -#if 0 // Useful for debugging. - outs() << "xar member: " << member_name << " extracted\n"; -#endif - // Set the XarMemberName we want to see printed in the header. - std::string OldXarMemberName; - // If XarMemberName is already set this is nested. So - // save the old name and create the nested name. - if (!XarMemberName.empty()) { - OldXarMemberName = XarMemberName; - XarMemberName = - (Twine("[") + XarMemberName + "]" + member_name).str(); - } else { - OldXarMemberName = ""; - XarMemberName = member_name; - } - // See if this is could be a xar file (nested). - if (member_size >= sizeof(struct xar_header)) { -#if 0 // Useful for debugging. - outs() << "could be a xar file: " << member_name << "\n"; -#endif - memcpy((char *)&XarHeader, buffer, sizeof(struct xar_header)); - if (sys::IsLittleEndianHost) - swapStruct(XarHeader); - if (XarHeader.magic == XAR_HEADER_MAGIC) - DumpBitcodeSection(O, buffer, member_size, verbose, - PrintXarHeader, PrintXarFileHeaders, - XarMemberName); - } - XarMemberName = OldXarMemberName; - delete buffer; - } - } - } - } -} -#endif // defined(HAVE_LIBXAR) - -static void printObjcMetaData(MachOObjectFile *O, bool verbose) { - if (O->is64Bit()) - printObjc2_64bit_MetaData(O, verbose); - else { - MachO::mach_header H; - H = O->getHeader(); - if (H.cputype == MachO::CPU_TYPE_ARM) - printObjc2_32bit_MetaData(O, verbose); - else { - // This is the 32-bit non-arm cputype case. Which is normally - // the first Objective-C ABI. But it may be the case of a - // binary for the iOS simulator which is the second Objective-C - // ABI. In that case printObjc1_32bit_MetaData() will determine that - // and return false. - if (!printObjc1_32bit_MetaData(O, verbose)) - printObjc2_32bit_MetaData(O, verbose); - } - } -} - -// GuessLiteralPointer returns a string which for the item in the Mach-O file -// for the address passed in as ReferenceValue for printing as a comment with -// the instruction and also returns the corresponding type of that item -// indirectly through ReferenceType. -// -// If ReferenceValue is an address of literal cstring then a pointer to the -// cstring is returned and ReferenceType is set to -// LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr . -// -// If ReferenceValue is an address of an Objective-C CFString, Selector ref or -// Class ref that name is returned and the ReferenceType is set accordingly. -// -// Lastly, literals which are Symbol address in a literal pool are looked for -// and if found the symbol name is returned and ReferenceType is set to -// LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr . -// -// If there is no item in the Mach-O file for the address passed in as -// ReferenceValue nullptr is returned and ReferenceType is unchanged. -static const char *GuessLiteralPointer(uint64_t ReferenceValue, - uint64_t ReferencePC, - uint64_t *ReferenceType, - struct DisassembleInfo *info) { - // First see if there is an external relocation entry at the ReferencePC. - if (info->O->getHeader().filetype == MachO::MH_OBJECT) { - uint64_t sect_addr = info->S.getAddress(); - uint64_t sect_offset = ReferencePC - sect_addr; - bool reloc_found = false; - DataRefImpl Rel; - MachO::any_relocation_info RE; - bool isExtern = false; - SymbolRef Symbol; - for (const RelocationRef &Reloc : info->S.relocations()) { - uint64_t RelocOffset = Reloc.getOffset(); - if (RelocOffset == sect_offset) { - Rel = Reloc.getRawDataRefImpl(); - RE = info->O->getRelocation(Rel); - if (info->O->isRelocationScattered(RE)) - continue; - isExtern = info->O->getPlainRelocationExternal(RE); - if (isExtern) { - symbol_iterator RelocSym = Reloc.getSymbol(); - Symbol = *RelocSym; - } - reloc_found = true; - break; - } - } - // If there is an external relocation entry for a symbol in a section - // then used that symbol's value for the value of the reference. - if (reloc_found && isExtern) { - if (info->O->getAnyRelocationPCRel(RE)) { - unsigned Type = info->O->getAnyRelocationType(RE); - if (Type == MachO::X86_64_RELOC_SIGNED) { - ReferenceValue = Symbol.getValue(); - } - } - } - } - - // Look for literals such as Objective-C CFStrings refs, Selector refs, - // Message refs and Class refs. - bool classref, selref, msgref, cfstring; - uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref, - selref, msgref, cfstring); - if (classref && pointer_value == 0) { - // Note the ReferenceValue is a pointer into the __objc_classrefs section. - // And the pointer_value in that section is typically zero as it will be - // set by dyld as part of the "bind information". - const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info); - if (name != nullptr) { - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref; - const char *class_name = strrchr(name, '$'); - if (class_name != nullptr && class_name[1] == '_' && - class_name[2] != '\0') { - info->class_name = class_name + 2; - return name; - } - } - } - - if (classref) { - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref; - const char *name = - get_objc2_64bit_class_name(pointer_value, ReferenceValue, info); - if (name != nullptr) - info->class_name = name; - else - name = "bad class ref"; - return name; - } - - if (cfstring) { - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref; - const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info); - return name; - } - - if (selref && pointer_value == 0) - pointer_value = get_objc2_64bit_selref(ReferenceValue, info); - - if (pointer_value != 0) - ReferenceValue = pointer_value; - - const char *name = GuessCstringPointer(ReferenceValue, info); - if (name) { - if (pointer_value != 0 && selref) { - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref; - info->selector_name = name; - } else if (pointer_value != 0 && msgref) { - info->class_name = nullptr; - *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref; - info->selector_name = name; - } else - *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr; - return name; - } - - // Lastly look for an indirect symbol with this ReferenceValue which is in - // a literal pool. If found return that symbol name. - name = GuessIndirectSymbol(ReferenceValue, info); - if (name) { - *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr; - return name; - } - - return nullptr; -} - -// SymbolizerSymbolLookUp is the symbol lookup function passed when creating -// the Symbolizer. It looks up the ReferenceValue using the info passed via the -// pointer to the struct DisassembleInfo that was passed when MCSymbolizer -// is created and returns the symbol name that matches the ReferenceValue or -// nullptr if none. The ReferenceType is passed in for the IN type of -// reference the instruction is making from the values in defined in the header -// "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific -// Out type and the ReferenceName will also be set which is added as a comment -// to the disassembled instruction. -// -// If the symbol name is a C++ mangled name then the demangled name is -// returned through ReferenceName and ReferenceType is set to -// LLVMDisassembler_ReferenceType_DeMangled_Name . -// -// When this is called to get a symbol name for a branch target then the -// ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then -// SymbolValue will be looked for in the indirect symbol table to determine if -// it is an address for a symbol stub. If so then the symbol name for that -// stub is returned indirectly through ReferenceName and then ReferenceType is -// set to LLVMDisassembler_ReferenceType_Out_SymbolStub. -// -// When this is called with an value loaded via a PC relative load then -// ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the -// SymbolValue is checked to be an address of literal pointer, symbol pointer, -// or an Objective-C meta data reference. If so the output ReferenceType is -// set to correspond to that as well as setting the ReferenceName. -static const char *SymbolizerSymbolLookUp(void *DisInfo, - uint64_t ReferenceValue, - uint64_t *ReferenceType, - uint64_t ReferencePC, - const char **ReferenceName) { - struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; - // If no verbose symbolic information is wanted then just return nullptr. - if (!info->verbose) { - *ReferenceName = nullptr; - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - return nullptr; - } - - const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); - - if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch) { - *ReferenceName = GuessIndirectSymbol(ReferenceValue, info); - if (*ReferenceName != nullptr) { - method_reference(info, ReferenceType, ReferenceName); - if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message) - *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub; - } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { - if (info->demangled_name != nullptr) - free(info->demangled_name); - int status; - info->demangled_name = - itaniumDemangle(SymbolName + 1, nullptr, nullptr, &status); - if (info->demangled_name != nullptr) { - *ReferenceName = info->demangled_name; - *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name; - } else - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - } else - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load) { - *ReferenceName = - GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); - if (*ReferenceName) - method_reference(info, ReferenceType, ReferenceName); - else - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - // If this is arm64 and the reference is an adrp instruction save the - // instruction, passed in ReferenceValue and the address of the instruction - // for use later if we see and add immediate instruction. - } else if (info->O->getArch() == Triple::aarch64 && - *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP) { - info->adrp_inst = ReferenceValue; - info->adrp_addr = ReferencePC; - SymbolName = nullptr; - *ReferenceName = nullptr; - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - // If this is arm64 and reference is an add immediate instruction and we - // have - // seen an adrp instruction just before it and the adrp's Xd register - // matches - // this add's Xn register reconstruct the value being referenced and look to - // see if it is a literal pointer. Note the add immediate instruction is - // passed in ReferenceValue. - } else if (info->O->getArch() == Triple::aarch64 && - *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri && - ReferencePC - 4 == info->adrp_addr && - (info->adrp_inst & 0x9f000000) == 0x90000000 && - (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { - uint32_t addxri_inst; - uint64_t adrp_imm, addxri_imm; - - adrp_imm = - ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); - if (info->adrp_inst & 0x0200000) - adrp_imm |= 0xfffffffffc000000LL; - - addxri_inst = ReferenceValue; - addxri_imm = (addxri_inst >> 10) & 0xfff; - if (((addxri_inst >> 22) & 0x3) == 1) - addxri_imm <<= 12; - - ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + - (adrp_imm << 12) + addxri_imm; - - *ReferenceName = - GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); - if (*ReferenceName == nullptr) - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - // If this is arm64 and the reference is a load register instruction and we - // have seen an adrp instruction just before it and the adrp's Xd register - // matches this add's Xn register reconstruct the value being referenced and - // look to see if it is a literal pointer. Note the load register - // instruction is passed in ReferenceValue. - } else if (info->O->getArch() == Triple::aarch64 && - *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui && - ReferencePC - 4 == info->adrp_addr && - (info->adrp_inst & 0x9f000000) == 0x90000000 && - (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { - uint32_t ldrxui_inst; - uint64_t adrp_imm, ldrxui_imm; - - adrp_imm = - ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); - if (info->adrp_inst & 0x0200000) - adrp_imm |= 0xfffffffffc000000LL; - - ldrxui_inst = ReferenceValue; - ldrxui_imm = (ldrxui_inst >> 10) & 0xfff; - - ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + - (adrp_imm << 12) + (ldrxui_imm << 3); - - *ReferenceName = - GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); - if (*ReferenceName == nullptr) - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - } - // If this arm64 and is an load register (PC-relative) instruction the - // ReferenceValue is the PC plus the immediate value. - else if (info->O->getArch() == Triple::aarch64 && - (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl || - *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR)) { - *ReferenceName = - GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); - if (*ReferenceName == nullptr) - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { - if (info->demangled_name != nullptr) - free(info->demangled_name); - int status; - info->demangled_name = - itaniumDemangle(SymbolName + 1, nullptr, nullptr, &status); - if (info->demangled_name != nullptr) { - *ReferenceName = info->demangled_name; - *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name; - } - } - else { - *ReferenceName = nullptr; - *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None; - } - - return SymbolName; -} - -/// Emits the comments that are stored in the CommentStream. -/// Each comment in the CommentStream must end with a newline. -static void emitComments(raw_svector_ostream &CommentStream, - SmallString<128> &CommentsToEmit, - formatted_raw_ostream &FormattedOS, - const MCAsmInfo &MAI) { - // Flush the stream before taking its content. - StringRef Comments = CommentsToEmit.str(); - // Get the default information for printing a comment. - StringRef CommentBegin = MAI.getCommentString(); - unsigned CommentColumn = MAI.getCommentColumn(); - bool IsFirst = true; - while (!Comments.empty()) { - if (!IsFirst) - FormattedOS << '\n'; - // Emit a line of comments. - FormattedOS.PadToColumn(CommentColumn); - size_t Position = Comments.find('\n'); - FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position); - // Move after the newline character. - Comments = Comments.substr(Position + 1); - IsFirst = false; - } - FormattedOS.flush(); - - // Tell the comment stream that the vector changed underneath it. - CommentsToEmit.clear(); -} - -static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, - StringRef DisSegName, StringRef DisSectName) { - const char *McpuDefault = nullptr; - const Target *ThumbTarget = nullptr; - const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget); - if (!TheTarget) { - // GetTarget prints out stuff. - return; - } - std::string MachOMCPU; - if (MCPU.empty() && McpuDefault) - MachOMCPU = McpuDefault; - else - MachOMCPU = MCPU; - - std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo()); - std::unique_ptr<const MCInstrInfo> ThumbInstrInfo; - if (ThumbTarget) - ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo()); - - // Package up features to be passed to target/subtarget - std::string FeaturesStr; - if (!MAttrs.empty()) { - SubtargetFeatures Features; - for (unsigned i = 0; i != MAttrs.size(); ++i) - Features.AddFeature(MAttrs[i]); - FeaturesStr = Features.getString(); - } - - // Set up disassembler. - std::unique_ptr<const MCRegisterInfo> MRI( - TheTarget->createMCRegInfo(TripleName)); - std::unique_ptr<const MCAsmInfo> AsmInfo( - TheTarget->createMCAsmInfo(*MRI, TripleName)); - std::unique_ptr<const MCSubtargetInfo> STI( - TheTarget->createMCSubtargetInfo(TripleName, MachOMCPU, FeaturesStr)); - MCContext Ctx(AsmInfo.get(), MRI.get(), nullptr); - std::unique_ptr<MCDisassembler> DisAsm( - TheTarget->createMCDisassembler(*STI, Ctx)); - std::unique_ptr<MCSymbolizer> Symbolizer; - struct DisassembleInfo SymbolizerInfo(nullptr, nullptr, nullptr, false); - std::unique_ptr<MCRelocationInfo> RelInfo( - TheTarget->createMCRelocationInfo(TripleName, Ctx)); - if (RelInfo) { - Symbolizer.reset(TheTarget->createMCSymbolizer( - TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, - &SymbolizerInfo, &Ctx, std::move(RelInfo))); - DisAsm->setSymbolizer(std::move(Symbolizer)); - } - int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); - std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( - Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI)); - // Set the display preference for hex vs. decimal immediates. - IP->setPrintImmHex(PrintImmHex); - // Comment stream and backing vector. - SmallString<128> CommentsToEmit; - raw_svector_ostream CommentStream(CommentsToEmit); - // FIXME: Setting the CommentStream in the InstPrinter is problematic in that - // if it is done then arm64 comments for string literals don't get printed - // and some constant get printed instead and not setting it causes intel - // (32-bit and 64-bit) comments printed with different spacing before the - // comment causing different diffs with the 'C' disassembler library API. - // IP->setCommentStream(CommentStream); - - if (!AsmInfo || !STI || !DisAsm || !IP) { - WithColor::error(errs(), "llvm-objdump") - << "couldn't initialize disassembler for target " << TripleName << '\n'; - return; - } - - // Set up separate thumb disassembler if needed. - std::unique_ptr<const MCRegisterInfo> ThumbMRI; - std::unique_ptr<const MCAsmInfo> ThumbAsmInfo; - std::unique_ptr<const MCSubtargetInfo> ThumbSTI; - std::unique_ptr<MCDisassembler> ThumbDisAsm; - std::unique_ptr<MCInstPrinter> ThumbIP; - std::unique_ptr<MCContext> ThumbCtx; - std::unique_ptr<MCSymbolizer> ThumbSymbolizer; - struct DisassembleInfo ThumbSymbolizerInfo(nullptr, nullptr, nullptr, false); - std::unique_ptr<MCRelocationInfo> ThumbRelInfo; - if (ThumbTarget) { - ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName)); - ThumbAsmInfo.reset( - ThumbTarget->createMCAsmInfo(*ThumbMRI, ThumbTripleName)); - ThumbSTI.reset( - ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MachOMCPU, - FeaturesStr)); - ThumbCtx.reset(new MCContext(ThumbAsmInfo.get(), ThumbMRI.get(), nullptr)); - ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx)); - MCContext *PtrThumbCtx = ThumbCtx.get(); - ThumbRelInfo.reset( - ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx)); - if (ThumbRelInfo) { - ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer( - ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, - &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo))); - ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer)); - } - int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect(); - ThumbIP.reset(ThumbTarget->createMCInstPrinter( - Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo, - *ThumbInstrInfo, *ThumbMRI)); - // Set the display preference for hex vs. decimal immediates. - ThumbIP->setPrintImmHex(PrintImmHex); - } - - if (ThumbTarget && (!ThumbAsmInfo || !ThumbSTI || !ThumbDisAsm || !ThumbIP)) { - WithColor::error(errs(), "llvm-objdump") - << "couldn't initialize disassembler for target " << ThumbTripleName - << '\n'; - return; - } - - MachO::mach_header Header = MachOOF->getHeader(); - - // FIXME: Using the -cfg command line option, this code used to be able to - // annotate relocations with the referenced symbol's name, and if this was - // inside a __[cf]string section, the data it points to. This is now replaced - // by the upcoming MCSymbolizer, which needs the appropriate setup done above. - std::vector<SectionRef> Sections; - std::vector<SymbolRef> Symbols; - SmallVector<uint64_t, 8> FoundFns; - uint64_t BaseSegmentAddress; - - getSectionsAndSymbols(MachOOF, Sections, Symbols, FoundFns, - BaseSegmentAddress); - - // Sort the symbols by address, just in case they didn't come in that way. - llvm::sort(Symbols, SymbolSorter()); - - // Build a data in code table that is sorted on by the address of each entry. - uint64_t BaseAddress = 0; - if (Header.filetype == MachO::MH_OBJECT) - BaseAddress = Sections[0].getAddress(); - else - BaseAddress = BaseSegmentAddress; - DiceTable Dices; - for (dice_iterator DI = MachOOF->begin_dices(), DE = MachOOF->end_dices(); - DI != DE; ++DI) { - uint32_t Offset; - DI->getOffset(Offset); - Dices.push_back(std::make_pair(BaseAddress + Offset, *DI)); - } - array_pod_sort(Dices.begin(), Dices.end()); - -#ifndef NDEBUG - raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); -#else - raw_ostream &DebugOut = nulls(); -#endif - - // Try to find debug info and set up the DIContext for it. - std::unique_ptr<DIContext> diContext; - std::unique_ptr<Binary> DSYMBinary; - std::unique_ptr<MemoryBuffer> DSYMBuf; - if (UseDbg) { - ObjectFile *DbgObj = MachOOF; - - // A separate DSym file path was specified, parse it as a macho file, - // get the sections and supply it to the section name parsing machinery. - if (!DSYMFile.empty()) { - ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr = - MemoryBuffer::getFileOrSTDIN(DSYMFile); - if (std::error_code EC = BufOrErr.getError()) { - report_error(errorCodeToError(EC), DSYMFile); - return; - } - - // We need to keep the file alive, because we're replacing DbgObj with it. - DSYMBuf = std::move(BufOrErr.get()); - - Expected<std::unique_ptr<Binary>> BinaryOrErr = - createBinary(DSYMBuf.get()->getMemBufferRef()); - if (!BinaryOrErr) { - report_error(BinaryOrErr.takeError(), DSYMFile); - return; - } - - // We need to keep the Binary elive with the buffer - DSYMBinary = std::move(BinaryOrErr.get()); - - if (ObjectFile *O = dyn_cast<ObjectFile>(DSYMBinary.get())) { - // this is a Mach-O object file, use it - if (MachOObjectFile *MachDSYM = dyn_cast<MachOObjectFile>(&*O)) { - DbgObj = MachDSYM; - } - else { - WithColor::error(errs(), "llvm-objdump") - << DSYMFile << " is not a Mach-O file type.\n"; - return; - } - } - else if (auto UB = dyn_cast<MachOUniversalBinary>(DSYMBinary.get())){ - // this is a Universal Binary, find a Mach-O for this architecture - uint32_t CPUType, CPUSubType; - const char *ArchFlag; - if (MachOOF->is64Bit()) { - const MachO::mach_header_64 H_64 = MachOOF->getHeader64(); - CPUType = H_64.cputype; - CPUSubType = H_64.cpusubtype; - } else { - const MachO::mach_header H = MachOOF->getHeader(); - CPUType = H.cputype; - CPUSubType = H.cpusubtype; - } - Triple T = MachOObjectFile::getArchTriple(CPUType, CPUSubType, nullptr, - &ArchFlag); - Expected<std::unique_ptr<MachOObjectFile>> MachDSYM = - UB->getObjectForArch(ArchFlag); - if (!MachDSYM) { - report_error(MachDSYM.takeError(), DSYMFile); - return; - } - - // We need to keep the Binary elive with the buffer - DbgObj = &*MachDSYM.get(); - DSYMBinary = std::move(*MachDSYM); - } - else { - WithColor::error(errs(), "llvm-objdump") - << DSYMFile << " is not a Mach-O or Universal file type.\n"; - return; - } - } - - // Setup the DIContext - diContext = DWARFContext::create(*DbgObj); - } - - if (FilterSections.empty()) - outs() << "(" << DisSegName << "," << DisSectName << ") section\n"; - - for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { - StringRef SectName; - if (Sections[SectIdx].getName(SectName) || SectName != DisSectName) - continue; - - DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl(); - - StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR); - if (SegmentName != DisSegName) - continue; - - StringRef BytesStr = - unwrapOrError(Sections[SectIdx].getContents(), Filename); - ArrayRef<uint8_t> Bytes = arrayRefFromStringRef(BytesStr); - uint64_t SectAddress = Sections[SectIdx].getAddress(); - - bool symbolTableWorked = false; - - // Create a map of symbol addresses to symbol names for use by - // the SymbolizerSymbolLookUp() routine. - SymbolAddressMap AddrMap; - bool DisSymNameFound = false; - for (const SymbolRef &Symbol : MachOOF->symbols()) { - SymbolRef::Type ST = - unwrapOrError(Symbol.getType(), MachOOF->getFileName()); - if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || - ST == SymbolRef::ST_Other) { - uint64_t Address = Symbol.getValue(); - StringRef SymName = - unwrapOrError(Symbol.getName(), MachOOF->getFileName()); - AddrMap[Address] = SymName; - if (!DisSymName.empty() && DisSymName == SymName) - DisSymNameFound = true; - } - } - if (!DisSymName.empty() && !DisSymNameFound) { - outs() << "Can't find -dis-symname: " << DisSymName << "\n"; - return; - } - // Set up the block of info used by the Symbolizer call backs. - SymbolizerInfo.verbose = !NoSymbolicOperands; - SymbolizerInfo.O = MachOOF; - SymbolizerInfo.S = Sections[SectIdx]; - SymbolizerInfo.AddrMap = &AddrMap; - SymbolizerInfo.Sections = &Sections; - // Same for the ThumbSymbolizer - ThumbSymbolizerInfo.verbose = !NoSymbolicOperands; - ThumbSymbolizerInfo.O = MachOOF; - ThumbSymbolizerInfo.S = Sections[SectIdx]; - ThumbSymbolizerInfo.AddrMap = &AddrMap; - ThumbSymbolizerInfo.Sections = &Sections; - - unsigned int Arch = MachOOF->getArch(); - - // Skip all symbols if this is a stubs file. - if (Bytes.empty()) - return; - - // If the section has symbols but no symbol at the start of the section - // these are used to make sure the bytes before the first symbol are - // disassembled. - bool FirstSymbol = true; - bool FirstSymbolAtSectionStart = true; - - // Disassemble symbol by symbol. - for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { - StringRef SymName = - unwrapOrError(Symbols[SymIdx].getName(), MachOOF->getFileName()); - SymbolRef::Type ST = - unwrapOrError(Symbols[SymIdx].getType(), MachOOF->getFileName()); - if (ST != SymbolRef::ST_Function && ST != SymbolRef::ST_Data) - continue; - - // Make sure the symbol is defined in this section. - bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]); - if (!containsSym) { - if (!DisSymName.empty() && DisSymName == SymName) { - outs() << "-dis-symname: " << DisSymName << " not in the section\n"; - return; - } - continue; - } - // The __mh_execute_header is special and we need to deal with that fact - // this symbol is before the start of the (__TEXT,__text) section and at the - // address of the start of the __TEXT segment. This is because this symbol - // is an N_SECT symbol in the (__TEXT,__text) but its address is before the - // start of the section in a standard MH_EXECUTE filetype. - if (!DisSymName.empty() && DisSymName == "__mh_execute_header") { - outs() << "-dis-symname: __mh_execute_header not in any section\n"; - return; - } - // When this code is trying to disassemble a symbol at a time and in the - // case there is only the __mh_execute_header symbol left as in a stripped - // executable, we need to deal with this by ignoring this symbol so the - // whole section is disassembled and this symbol is then not displayed. - if (SymName == "__mh_execute_header" || SymName == "__mh_dylib_header" || - SymName == "__mh_bundle_header" || SymName == "__mh_object_header" || - SymName == "__mh_preload_header" || SymName == "__mh_dylinker_header") - continue; - - // If we are only disassembling one symbol see if this is that symbol. - if (!DisSymName.empty() && DisSymName != SymName) - continue; - - // Start at the address of the symbol relative to the section's address. - uint64_t SectSize = Sections[SectIdx].getSize(); - uint64_t Start = Symbols[SymIdx].getValue(); - uint64_t SectionAddress = Sections[SectIdx].getAddress(); - Start -= SectionAddress; - - if (Start > SectSize) { - outs() << "section data ends, " << SymName - << " lies outside valid range\n"; - return; - } - - // Stop disassembling either at the beginning of the next symbol or at - // the end of the section. - bool containsNextSym = false; - uint64_t NextSym = 0; - uint64_t NextSymIdx = SymIdx + 1; - while (Symbols.size() > NextSymIdx) { - SymbolRef::Type NextSymType = unwrapOrError( - Symbols[NextSymIdx].getType(), MachOOF->getFileName()); - if (NextSymType == SymbolRef::ST_Function) { - containsNextSym = - Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]); - NextSym = Symbols[NextSymIdx].getValue(); - NextSym -= SectionAddress; - break; - } - ++NextSymIdx; - } - - uint64_t End = containsNextSym ? std::min(NextSym, SectSize) : SectSize; - uint64_t Size; - - symbolTableWorked = true; - - DataRefImpl Symb = Symbols[SymIdx].getRawDataRefImpl(); - bool IsThumb = MachOOF->getSymbolFlags(Symb) & SymbolRef::SF_Thumb; - - // We only need the dedicated Thumb target if there's a real choice - // (i.e. we're not targeting M-class) and the function is Thumb. - bool UseThumbTarget = IsThumb && ThumbTarget; - - // If we are not specifying a symbol to start disassembly with and this - // is the first symbol in the section but not at the start of the section - // then move the disassembly index to the start of the section and - // don't print the symbol name just yet. This is so the bytes before the - // first symbol are disassembled. - uint64_t SymbolStart = Start; - if (DisSymName.empty() && FirstSymbol && Start != 0) { - FirstSymbolAtSectionStart = false; - Start = 0; - } - else - outs() << SymName << ":\n"; - - DILineInfo lastLine; - for (uint64_t Index = Start; Index < End; Index += Size) { - MCInst Inst; - - // If this is the first symbol in the section and it was not at the - // start of the section, see if we are at its Index now and if so print - // the symbol name. - if (FirstSymbol && !FirstSymbolAtSectionStart && Index == SymbolStart) - outs() << SymName << ":\n"; - - uint64_t PC = SectAddress + Index; - if (!NoLeadingAddr) { - if (FullLeadingAddr) { - if (MachOOF->is64Bit()) - outs() << format("%016" PRIx64, PC); - else - outs() << format("%08" PRIx64, PC); - } else { - outs() << format("%8" PRIx64 ":", PC); - } - } - if (!NoShowRawInsn || Arch == Triple::arm) - outs() << "\t"; - - // Check the data in code table here to see if this is data not an - // instruction to be disassembled. - DiceTable Dice; - Dice.push_back(std::make_pair(PC, DiceRef())); - dice_table_iterator DTI = - std::search(Dices.begin(), Dices.end(), Dice.begin(), Dice.end(), - compareDiceTableEntries); - if (DTI != Dices.end()) { - uint16_t Length; - DTI->second.getLength(Length); - uint16_t Kind; - DTI->second.getKind(Kind); - Size = DumpDataInCode(Bytes.data() + Index, Length, Kind); - if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) && - (PC == (DTI->first + Length - 1)) && (Length & 1)) - Size++; - continue; - } - - SmallVector<char, 64> AnnotationsBytes; - raw_svector_ostream Annotations(AnnotationsBytes); - - bool gotInst; - if (UseThumbTarget) - gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index), - PC, DebugOut, Annotations); - else - gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC, - DebugOut, Annotations); - if (gotInst) { - if (!NoShowRawInsn || Arch == Triple::arm) { - dumpBytes(makeArrayRef(Bytes.data() + Index, Size), outs()); - } - formatted_raw_ostream FormattedOS(outs()); - StringRef AnnotationsStr = Annotations.str(); - if (UseThumbTarget) - ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr, *ThumbSTI); - else - IP->printInst(&Inst, FormattedOS, AnnotationsStr, *STI); - emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo); - - // Print debug info. - if (diContext) { - DILineInfo dli = diContext->getLineInfoForAddress({PC, SectIdx}); - // Print valid line info if it changed. - if (dli != lastLine && dli.Line != 0) - outs() << "\t## " << dli.FileName << ':' << dli.Line << ':' - << dli.Column; - lastLine = dli; - } - outs() << "\n"; - } else { - unsigned int Arch = MachOOF->getArch(); - if (Arch == Triple::x86_64 || Arch == Triple::x86) { - outs() << format("\t.byte 0x%02x #bad opcode\n", - *(Bytes.data() + Index) & 0xff); - Size = 1; // skip exactly one illegible byte and move on. - } else if (Arch == Triple::aarch64 || - (Arch == Triple::arm && !IsThumb)) { - uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | - (*(Bytes.data() + Index + 1) & 0xff) << 8 | - (*(Bytes.data() + Index + 2) & 0xff) << 16 | - (*(Bytes.data() + Index + 3) & 0xff) << 24; - outs() << format("\t.long\t0x%08x\n", opcode); - Size = 4; - } else if (Arch == Triple::arm) { - assert(IsThumb && "ARM mode should have been dealt with above"); - uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | - (*(Bytes.data() + Index + 1) & 0xff) << 8; - outs() << format("\t.short\t0x%04x\n", opcode); - Size = 2; - } else{ - WithColor::warning(errs(), "llvm-objdump") - << "invalid instruction encoding\n"; - if (Size == 0) - Size = 1; // skip illegible bytes - } - } - } - // Now that we are done disassembled the first symbol set the bool that - // were doing this to false. - FirstSymbol = false; - } - if (!symbolTableWorked) { - // Reading the symbol table didn't work, disassemble the whole section. - uint64_t SectAddress = Sections[SectIdx].getAddress(); - uint64_t SectSize = Sections[SectIdx].getSize(); - uint64_t InstSize; - for (uint64_t Index = 0; Index < SectSize; Index += InstSize) { - MCInst Inst; - - uint64_t PC = SectAddress + Index; - SmallVector<char, 64> AnnotationsBytes; - raw_svector_ostream Annotations(AnnotationsBytes); - if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC, - DebugOut, Annotations)) { - if (!NoLeadingAddr) { - if (FullLeadingAddr) { - if (MachOOF->is64Bit()) - outs() << format("%016" PRIx64, PC); - else - outs() << format("%08" PRIx64, PC); - } else { - outs() << format("%8" PRIx64 ":", PC); - } - } - if (!NoShowRawInsn || Arch == Triple::arm) { - outs() << "\t"; - dumpBytes(makeArrayRef(Bytes.data() + Index, InstSize), outs()); - } - StringRef AnnotationsStr = Annotations.str(); - IP->printInst(&Inst, outs(), AnnotationsStr, *STI); - outs() << "\n"; - } else { - unsigned int Arch = MachOOF->getArch(); - if (Arch == Triple::x86_64 || Arch == Triple::x86) { - outs() << format("\t.byte 0x%02x #bad opcode\n", - *(Bytes.data() + Index) & 0xff); - InstSize = 1; // skip exactly one illegible byte and move on. - } else { - WithColor::warning(errs(), "llvm-objdump") - << "invalid instruction encoding\n"; - if (InstSize == 0) - InstSize = 1; // skip illegible bytes - } - } - } - } - // The TripleName's need to be reset if we are called again for a different - // archtecture. - TripleName = ""; - ThumbTripleName = ""; - - if (SymbolizerInfo.demangled_name != nullptr) - free(SymbolizerInfo.demangled_name); - if (ThumbSymbolizerInfo.demangled_name != nullptr) - free(ThumbSymbolizerInfo.demangled_name); - } -} - -//===----------------------------------------------------------------------===// -// __compact_unwind section dumping -//===----------------------------------------------------------------------===// - -namespace { - -template <typename T> -static uint64_t read(StringRef Contents, ptrdiff_t Offset) { - using llvm::support::little; - using llvm::support::unaligned; - - if (Offset + sizeof(T) > Contents.size()) { - outs() << "warning: attempt to read past end of buffer\n"; - return T(); - } - - uint64_t Val = - support::endian::read<T, little, unaligned>(Contents.data() + Offset); - return Val; -} - -template <typename T> -static uint64_t readNext(StringRef Contents, ptrdiff_t &Offset) { - T Val = read<T>(Contents, Offset); - Offset += sizeof(T); - return Val; -} - -struct CompactUnwindEntry { - uint32_t OffsetInSection; - - uint64_t FunctionAddr; - uint32_t Length; - uint32_t CompactEncoding; - uint64_t PersonalityAddr; - uint64_t LSDAAddr; - - RelocationRef FunctionReloc; - RelocationRef PersonalityReloc; - RelocationRef LSDAReloc; - - CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64) - : OffsetInSection(Offset) { - if (Is64) - read<uint64_t>(Contents, Offset); - else - read<uint32_t>(Contents, Offset); - } - -private: - template <typename UIntPtr> void read(StringRef Contents, ptrdiff_t Offset) { - FunctionAddr = readNext<UIntPtr>(Contents, Offset); - Length = readNext<uint32_t>(Contents, Offset); - CompactEncoding = readNext<uint32_t>(Contents, Offset); - PersonalityAddr = readNext<UIntPtr>(Contents, Offset); - LSDAAddr = readNext<UIntPtr>(Contents, Offset); - } -}; -} - -/// Given a relocation from __compact_unwind, consisting of the RelocationRef -/// and data being relocated, determine the best base Name and Addend to use for -/// display purposes. -/// -/// 1. An Extern relocation will directly reference a symbol (and the data is -/// then already an addend), so use that. -/// 2. Otherwise the data is an offset in the object file's layout; try to find -// a symbol before it in the same section, and use the offset from there. -/// 3. Finally, if all that fails, fall back to an offset from the start of the -/// referenced section. -static void findUnwindRelocNameAddend(const MachOObjectFile *Obj, - std::map<uint64_t, SymbolRef> &Symbols, - const RelocationRef &Reloc, uint64_t Addr, - StringRef &Name, uint64_t &Addend) { - if (Reloc.getSymbol() != Obj->symbol_end()) { - Name = unwrapOrError(Reloc.getSymbol()->getName(), Obj->getFileName()); - Addend = Addr; - return; - } - - auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl()); - SectionRef RelocSection = Obj->getAnyRelocationSection(RE); - - uint64_t SectionAddr = RelocSection.getAddress(); - - auto Sym = Symbols.upper_bound(Addr); - if (Sym == Symbols.begin()) { - // The first symbol in the object is after this reference, the best we can - // do is section-relative notation. - RelocSection.getName(Name); - Addend = Addr - SectionAddr; - return; - } - - // Go back one so that SymbolAddress <= Addr. - --Sym; - - section_iterator SymSection = - unwrapOrError(Sym->second.getSection(), Obj->getFileName()); - if (RelocSection == *SymSection) { - // There's a valid symbol in the same section before this reference. - Name = unwrapOrError(Sym->second.getName(), Obj->getFileName()); - Addend = Addr - Sym->first; - return; - } - - // There is a symbol before this reference, but it's in a different - // section. Probably not helpful to mention it, so use the section name. - RelocSection.getName(Name); - Addend = Addr - SectionAddr; -} - -static void printUnwindRelocDest(const MachOObjectFile *Obj, - std::map<uint64_t, SymbolRef> &Symbols, - const RelocationRef &Reloc, uint64_t Addr) { - StringRef Name; - uint64_t Addend; - - if (!Reloc.getObject()) - return; - - findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend); - - outs() << Name; - if (Addend) - outs() << " + " << format("0x%" PRIx64, Addend); -} - -static void -printMachOCompactUnwindSection(const MachOObjectFile *Obj, - std::map<uint64_t, SymbolRef> &Symbols, - const SectionRef &CompactUnwind) { - - if (!Obj->isLittleEndian()) { - outs() << "Skipping big-endian __compact_unwind section\n"; - return; - } - - bool Is64 = Obj->is64Bit(); - uint32_t PointerSize = Is64 ? sizeof(uint64_t) : sizeof(uint32_t); - uint32_t EntrySize = 3 * PointerSize + 2 * sizeof(uint32_t); - - StringRef Contents = - unwrapOrError(CompactUnwind.getContents(), Obj->getFileName()); - SmallVector<CompactUnwindEntry, 4> CompactUnwinds; - - // First populate the initial raw offsets, encodings and so on from the entry. - for (unsigned Offset = 0; Offset < Contents.size(); Offset += EntrySize) { - CompactUnwindEntry Entry(Contents, Offset, Is64); - CompactUnwinds.push_back(Entry); - } - - // Next we need to look at the relocations to find out what objects are - // actually being referred to. - for (const RelocationRef &Reloc : CompactUnwind.relocations()) { - uint64_t RelocAddress = Reloc.getOffset(); - - uint32_t EntryIdx = RelocAddress / EntrySize; - uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize; - CompactUnwindEntry &Entry = CompactUnwinds[EntryIdx]; - - if (OffsetInEntry == 0) - Entry.FunctionReloc = Reloc; - else if (OffsetInEntry == PointerSize + 2 * sizeof(uint32_t)) - Entry.PersonalityReloc = Reloc; - else if (OffsetInEntry == 2 * PointerSize + 2 * sizeof(uint32_t)) - Entry.LSDAReloc = Reloc; - else { - outs() << "Invalid relocation in __compact_unwind section\n"; - return; - } - } - - // Finally, we're ready to print the data we've gathered. - outs() << "Contents of __compact_unwind section:\n"; - for (auto &Entry : CompactUnwinds) { - outs() << " Entry at offset " - << format("0x%" PRIx32, Entry.OffsetInSection) << ":\n"; - - // 1. Start of the region this entry applies to. - outs() << " start: " << format("0x%" PRIx64, - Entry.FunctionAddr) << ' '; - printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc, Entry.FunctionAddr); - outs() << '\n'; - - // 2. Length of the region this entry applies to. - outs() << " length: " << format("0x%" PRIx32, Entry.Length) - << '\n'; - // 3. The 32-bit compact encoding. - outs() << " compact encoding: " - << format("0x%08" PRIx32, Entry.CompactEncoding) << '\n'; - - // 4. The personality function, if present. - if (Entry.PersonalityReloc.getObject()) { - outs() << " personality function: " - << format("0x%" PRIx64, Entry.PersonalityAddr) << ' '; - printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc, - Entry.PersonalityAddr); - outs() << '\n'; - } - - // 5. This entry's language-specific data area. - if (Entry.LSDAReloc.getObject()) { - outs() << " LSDA: " << format("0x%" PRIx64, - Entry.LSDAAddr) << ' '; - printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr); - outs() << '\n'; - } - } -} - -//===----------------------------------------------------------------------===// -// __unwind_info section dumping -//===----------------------------------------------------------------------===// - -static void printRegularSecondLevelUnwindPage(StringRef PageData) { - ptrdiff_t Pos = 0; - uint32_t Kind = readNext<uint32_t>(PageData, Pos); - (void)Kind; - assert(Kind == 2 && "kind for a regular 2nd level index should be 2"); - - uint16_t EntriesStart = readNext<uint16_t>(PageData, Pos); - uint16_t NumEntries = readNext<uint16_t>(PageData, Pos); - - Pos = EntriesStart; - for (unsigned i = 0; i < NumEntries; ++i) { - uint32_t FunctionOffset = readNext<uint32_t>(PageData, Pos); - uint32_t Encoding = readNext<uint32_t>(PageData, Pos); - - outs() << " [" << i << "]: " - << "function offset=" << format("0x%08" PRIx32, FunctionOffset) - << ", " - << "encoding=" << format("0x%08" PRIx32, Encoding) << '\n'; - } -} - -static void printCompressedSecondLevelUnwindPage( - StringRef PageData, uint32_t FunctionBase, - const SmallVectorImpl<uint32_t> &CommonEncodings) { - ptrdiff_t Pos = 0; - uint32_t Kind = readNext<uint32_t>(PageData, Pos); - (void)Kind; - assert(Kind == 3 && "kind for a compressed 2nd level index should be 3"); - - uint16_t EntriesStart = readNext<uint16_t>(PageData, Pos); - uint16_t NumEntries = readNext<uint16_t>(PageData, Pos); - - uint16_t EncodingsStart = readNext<uint16_t>(PageData, Pos); - readNext<uint16_t>(PageData, Pos); - StringRef PageEncodings = PageData.substr(EncodingsStart, StringRef::npos); - - Pos = EntriesStart; - for (unsigned i = 0; i < NumEntries; ++i) { - uint32_t Entry = readNext<uint32_t>(PageData, Pos); - uint32_t FunctionOffset = FunctionBase + (Entry & 0xffffff); - uint32_t EncodingIdx = Entry >> 24; - - uint32_t Encoding; - if (EncodingIdx < CommonEncodings.size()) - Encoding = CommonEncodings[EncodingIdx]; - else - Encoding = read<uint32_t>(PageEncodings, - sizeof(uint32_t) * - (EncodingIdx - CommonEncodings.size())); - - outs() << " [" << i << "]: " - << "function offset=" << format("0x%08" PRIx32, FunctionOffset) - << ", " - << "encoding[" << EncodingIdx - << "]=" << format("0x%08" PRIx32, Encoding) << '\n'; - } -} - -static void printMachOUnwindInfoSection(const MachOObjectFile *Obj, - std::map<uint64_t, SymbolRef> &Symbols, - const SectionRef &UnwindInfo) { - - if (!Obj->isLittleEndian()) { - outs() << "Skipping big-endian __unwind_info section\n"; - return; - } - - outs() << "Contents of __unwind_info section:\n"; - - StringRef Contents = - unwrapOrError(UnwindInfo.getContents(), Obj->getFileName()); - ptrdiff_t Pos = 0; - - //===---------------------------------- - // Section header - //===---------------------------------- - - uint32_t Version = readNext<uint32_t>(Contents, Pos); - outs() << " Version: " - << format("0x%" PRIx32, Version) << '\n'; - if (Version != 1) { - outs() << " Skipping section with unknown version\n"; - return; - } - - uint32_t CommonEncodingsStart = readNext<uint32_t>(Contents, Pos); - outs() << " Common encodings array section offset: " - << format("0x%" PRIx32, CommonEncodingsStart) << '\n'; - uint32_t NumCommonEncodings = readNext<uint32_t>(Contents, Pos); - outs() << " Number of common encodings in array: " - << format("0x%" PRIx32, NumCommonEncodings) << '\n'; - - uint32_t PersonalitiesStart = readNext<uint32_t>(Contents, Pos); - outs() << " Personality function array section offset: " - << format("0x%" PRIx32, PersonalitiesStart) << '\n'; - uint32_t NumPersonalities = readNext<uint32_t>(Contents, Pos); - outs() << " Number of personality functions in array: " - << format("0x%" PRIx32, NumPersonalities) << '\n'; - - uint32_t IndicesStart = readNext<uint32_t>(Contents, Pos); - outs() << " Index array section offset: " - << format("0x%" PRIx32, IndicesStart) << '\n'; - uint32_t NumIndices = readNext<uint32_t>(Contents, Pos); - outs() << " Number of indices in array: " - << format("0x%" PRIx32, NumIndices) << '\n'; - - //===---------------------------------- - // A shared list of common encodings - //===---------------------------------- - - // These occupy indices in the range [0, N] whenever an encoding is referenced - // from a compressed 2nd level index table. In practice the linker only - // creates ~128 of these, so that indices are available to embed encodings in - // the 2nd level index. - - SmallVector<uint32_t, 64> CommonEncodings; - outs() << " Common encodings: (count = " << NumCommonEncodings << ")\n"; - Pos = CommonEncodingsStart; - for (unsigned i = 0; i < NumCommonEncodings; ++i) { - uint32_t Encoding = readNext<uint32_t>(Contents, Pos); - CommonEncodings.push_back(Encoding); - - outs() << " encoding[" << i << "]: " << format("0x%08" PRIx32, Encoding) - << '\n'; - } - - //===---------------------------------- - // Personality functions used in this executable - //===---------------------------------- - - // There should be only a handful of these (one per source language, - // roughly). Particularly since they only get 2 bits in the compact encoding. - - outs() << " Personality functions: (count = " << NumPersonalities << ")\n"; - Pos = PersonalitiesStart; - for (unsigned i = 0; i < NumPersonalities; ++i) { - uint32_t PersonalityFn = readNext<uint32_t>(Contents, Pos); - outs() << " personality[" << i + 1 - << "]: " << format("0x%08" PRIx32, PersonalityFn) << '\n'; - } - - //===---------------------------------- - // The level 1 index entries - //===---------------------------------- - - // These specify an approximate place to start searching for the more detailed - // information, sorted by PC. - - struct IndexEntry { - uint32_t FunctionOffset; - uint32_t SecondLevelPageStart; - uint32_t LSDAStart; - }; - - SmallVector<IndexEntry, 4> IndexEntries; - - outs() << " Top level indices: (count = " << NumIndices << ")\n"; - Pos = IndicesStart; - for (unsigned i = 0; i < NumIndices; ++i) { - IndexEntry Entry; - - Entry.FunctionOffset = readNext<uint32_t>(Contents, Pos); - Entry.SecondLevelPageStart = readNext<uint32_t>(Contents, Pos); - Entry.LSDAStart = readNext<uint32_t>(Contents, Pos); - IndexEntries.push_back(Entry); - - outs() << " [" << i << "]: " - << "function offset=" << format("0x%08" PRIx32, Entry.FunctionOffset) - << ", " - << "2nd level page offset=" - << format("0x%08" PRIx32, Entry.SecondLevelPageStart) << ", " - << "LSDA offset=" << format("0x%08" PRIx32, Entry.LSDAStart) << '\n'; - } - - //===---------------------------------- - // Next come the LSDA tables - //===---------------------------------- - - // The LSDA layout is rather implicit: it's a contiguous array of entries from - // the first top-level index's LSDAOffset to the last (sentinel). - - outs() << " LSDA descriptors:\n"; - Pos = IndexEntries[0].LSDAStart; - const uint32_t LSDASize = 2 * sizeof(uint32_t); - int NumLSDAs = - (IndexEntries.back().LSDAStart - IndexEntries[0].LSDAStart) / LSDASize; - - for (int i = 0; i < NumLSDAs; ++i) { - uint32_t FunctionOffset = readNext<uint32_t>(Contents, Pos); - uint32_t LSDAOffset = readNext<uint32_t>(Contents, Pos); - outs() << " [" << i << "]: " - << "function offset=" << format("0x%08" PRIx32, FunctionOffset) - << ", " - << "LSDA offset=" << format("0x%08" PRIx32, LSDAOffset) << '\n'; - } - - //===---------------------------------- - // Finally, the 2nd level indices - //===---------------------------------- - - // Generally these are 4K in size, and have 2 possible forms: - // + Regular stores up to 511 entries with disparate encodings - // + Compressed stores up to 1021 entries if few enough compact encoding - // values are used. - outs() << " Second level indices:\n"; - for (unsigned i = 0; i < IndexEntries.size() - 1; ++i) { - // The final sentinel top-level index has no associated 2nd level page - if (IndexEntries[i].SecondLevelPageStart == 0) - break; - - outs() << " Second level index[" << i << "]: " - << "offset in section=" - << format("0x%08" PRIx32, IndexEntries[i].SecondLevelPageStart) - << ", " - << "base function offset=" - << format("0x%08" PRIx32, IndexEntries[i].FunctionOffset) << '\n'; - - Pos = IndexEntries[i].SecondLevelPageStart; - if (Pos + sizeof(uint32_t) > Contents.size()) { - outs() << "warning: invalid offset for second level page: " << Pos << '\n'; - continue; - } - - uint32_t Kind = - *reinterpret_cast<const support::ulittle32_t *>(Contents.data() + Pos); - if (Kind == 2) - printRegularSecondLevelUnwindPage(Contents.substr(Pos, 4096)); - else if (Kind == 3) - printCompressedSecondLevelUnwindPage(Contents.substr(Pos, 4096), - IndexEntries[i].FunctionOffset, - CommonEncodings); - else - outs() << " Skipping 2nd level page with unknown kind " << Kind - << '\n'; - } -} - -void printMachOUnwindInfo(const MachOObjectFile *Obj) { - std::map<uint64_t, SymbolRef> Symbols; - for (const SymbolRef &SymRef : Obj->symbols()) { - // Discard any undefined or absolute symbols. They're not going to take part - // in the convenience lookup for unwind info and just take up resources. - auto SectOrErr = SymRef.getSection(); - if (!SectOrErr) { - // TODO: Actually report errors helpfully. - consumeError(SectOrErr.takeError()); - continue; - } - section_iterator Section = *SectOrErr; - if (Section == Obj->section_end()) - continue; - - uint64_t Addr = SymRef.getValue(); - Symbols.insert(std::make_pair(Addr, SymRef)); - } - - for (const SectionRef &Section : Obj->sections()) { - StringRef SectName; - Section.getName(SectName); - if (SectName == "__compact_unwind") - printMachOCompactUnwindSection(Obj, Symbols, Section); - else if (SectName == "__unwind_info") - printMachOUnwindInfoSection(Obj, Symbols, Section); - } -} - -static void PrintMachHeader(uint32_t magic, uint32_t cputype, - uint32_t cpusubtype, uint32_t filetype, - uint32_t ncmds, uint32_t sizeofcmds, uint32_t flags, - bool verbose) { - outs() << "Mach header\n"; - outs() << " magic cputype cpusubtype caps filetype ncmds " - "sizeofcmds flags\n"; - if (verbose) { - if (magic == MachO::MH_MAGIC) - outs() << " MH_MAGIC"; - else if (magic == MachO::MH_MAGIC_64) - outs() << "MH_MAGIC_64"; - else - outs() << format(" 0x%08" PRIx32, magic); - switch (cputype) { - case MachO::CPU_TYPE_I386: - outs() << " I386"; - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_I386_ALL: - outs() << " ALL"; - break; - default: - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - break; - case MachO::CPU_TYPE_X86_64: - outs() << " X86_64"; - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_X86_64_ALL: - outs() << " ALL"; - break; - case MachO::CPU_SUBTYPE_X86_64_H: - outs() << " Haswell"; - break; - default: - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - break; - case MachO::CPU_TYPE_ARM: - outs() << " ARM"; - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_ARM_ALL: - outs() << " ALL"; - break; - case MachO::CPU_SUBTYPE_ARM_V4T: - outs() << " V4T"; - break; - case MachO::CPU_SUBTYPE_ARM_V5TEJ: - outs() << " V5TEJ"; - break; - case MachO::CPU_SUBTYPE_ARM_XSCALE: - outs() << " XSCALE"; - break; - case MachO::CPU_SUBTYPE_ARM_V6: - outs() << " V6"; - break; - case MachO::CPU_SUBTYPE_ARM_V6M: - outs() << " V6M"; - break; - case MachO::CPU_SUBTYPE_ARM_V7: - outs() << " V7"; - break; - case MachO::CPU_SUBTYPE_ARM_V7EM: - outs() << " V7EM"; - break; - case MachO::CPU_SUBTYPE_ARM_V7K: - outs() << " V7K"; - break; - case MachO::CPU_SUBTYPE_ARM_V7M: - outs() << " V7M"; - break; - case MachO::CPU_SUBTYPE_ARM_V7S: - outs() << " V7S"; - break; - default: - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - break; - case MachO::CPU_TYPE_ARM64: - outs() << " ARM64"; - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_ARM64_ALL: - outs() << " ALL"; - break; - case MachO::CPU_SUBTYPE_ARM64E: - outs() << " E"; - break; - default: - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - break; - case MachO::CPU_TYPE_ARM64_32: - outs() << " ARM64_32"; - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_ARM64_32_V8: - outs() << " V8"; - break; - default: - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - break; - case MachO::CPU_TYPE_POWERPC: - outs() << " PPC"; - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_POWERPC_ALL: - outs() << " ALL"; - break; - default: - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - break; - case MachO::CPU_TYPE_POWERPC64: - outs() << " PPC64"; - switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { - case MachO::CPU_SUBTYPE_POWERPC_ALL: - outs() << " ALL"; - break; - default: - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - break; - default: - outs() << format(" %7d", cputype); - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - break; - } - if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) { - outs() << " LIB64"; - } else { - outs() << format(" 0x%02" PRIx32, - (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); - } - switch (filetype) { - case MachO::MH_OBJECT: - outs() << " OBJECT"; - break; - case MachO::MH_EXECUTE: - outs() << " EXECUTE"; - break; - case MachO::MH_FVMLIB: - outs() << " FVMLIB"; - break; - case MachO::MH_CORE: - outs() << " CORE"; - break; - case MachO::MH_PRELOAD: - outs() << " PRELOAD"; - break; - case MachO::MH_DYLIB: - outs() << " DYLIB"; - break; - case MachO::MH_DYLIB_STUB: - outs() << " DYLIB_STUB"; - break; - case MachO::MH_DYLINKER: - outs() << " DYLINKER"; - break; - case MachO::MH_BUNDLE: - outs() << " BUNDLE"; - break; - case MachO::MH_DSYM: - outs() << " DSYM"; - break; - case MachO::MH_KEXT_BUNDLE: - outs() << " KEXTBUNDLE"; - break; - default: - outs() << format(" %10u", filetype); - break; - } - outs() << format(" %5u", ncmds); - outs() << format(" %10u", sizeofcmds); - uint32_t f = flags; - if (f & MachO::MH_NOUNDEFS) { - outs() << " NOUNDEFS"; - f &= ~MachO::MH_NOUNDEFS; - } - if (f & MachO::MH_INCRLINK) { - outs() << " INCRLINK"; - f &= ~MachO::MH_INCRLINK; - } - if (f & MachO::MH_DYLDLINK) { - outs() << " DYLDLINK"; - f &= ~MachO::MH_DYLDLINK; - } - if (f & MachO::MH_BINDATLOAD) { - outs() << " BINDATLOAD"; - f &= ~MachO::MH_BINDATLOAD; - } - if (f & MachO::MH_PREBOUND) { - outs() << " PREBOUND"; - f &= ~MachO::MH_PREBOUND; - } - if (f & MachO::MH_SPLIT_SEGS) { - outs() << " SPLIT_SEGS"; - f &= ~MachO::MH_SPLIT_SEGS; - } - if (f & MachO::MH_LAZY_INIT) { - outs() << " LAZY_INIT"; - f &= ~MachO::MH_LAZY_INIT; - } - if (f & MachO::MH_TWOLEVEL) { - outs() << " TWOLEVEL"; - f &= ~MachO::MH_TWOLEVEL; - } - if (f & MachO::MH_FORCE_FLAT) { - outs() << " FORCE_FLAT"; - f &= ~MachO::MH_FORCE_FLAT; - } - if (f & MachO::MH_NOMULTIDEFS) { - outs() << " NOMULTIDEFS"; - f &= ~MachO::MH_NOMULTIDEFS; - } - if (f & MachO::MH_NOFIXPREBINDING) { - outs() << " NOFIXPREBINDING"; - f &= ~MachO::MH_NOFIXPREBINDING; - } - if (f & MachO::MH_PREBINDABLE) { - outs() << " PREBINDABLE"; - f &= ~MachO::MH_PREBINDABLE; - } - if (f & MachO::MH_ALLMODSBOUND) { - outs() << " ALLMODSBOUND"; - f &= ~MachO::MH_ALLMODSBOUND; - } - if (f & MachO::MH_SUBSECTIONS_VIA_SYMBOLS) { - outs() << " SUBSECTIONS_VIA_SYMBOLS"; - f &= ~MachO::MH_SUBSECTIONS_VIA_SYMBOLS; - } - if (f & MachO::MH_CANONICAL) { - outs() << " CANONICAL"; - f &= ~MachO::MH_CANONICAL; - } - if (f & MachO::MH_WEAK_DEFINES) { - outs() << " WEAK_DEFINES"; - f &= ~MachO::MH_WEAK_DEFINES; - } - if (f & MachO::MH_BINDS_TO_WEAK) { - outs() << " BINDS_TO_WEAK"; - f &= ~MachO::MH_BINDS_TO_WEAK; - } - if (f & MachO::MH_ALLOW_STACK_EXECUTION) { - outs() << " ALLOW_STACK_EXECUTION"; - f &= ~MachO::MH_ALLOW_STACK_EXECUTION; - } - if (f & MachO::MH_DEAD_STRIPPABLE_DYLIB) { - outs() << " DEAD_STRIPPABLE_DYLIB"; - f &= ~MachO::MH_DEAD_STRIPPABLE_DYLIB; - } - if (f & MachO::MH_PIE) { - outs() << " PIE"; - f &= ~MachO::MH_PIE; - } - if (f & MachO::MH_NO_REEXPORTED_DYLIBS) { - outs() << " NO_REEXPORTED_DYLIBS"; - f &= ~MachO::MH_NO_REEXPORTED_DYLIBS; - } - if (f & MachO::MH_HAS_TLV_DESCRIPTORS) { - outs() << " MH_HAS_TLV_DESCRIPTORS"; - f &= ~MachO::MH_HAS_TLV_DESCRIPTORS; - } - if (f & MachO::MH_NO_HEAP_EXECUTION) { - outs() << " MH_NO_HEAP_EXECUTION"; - f &= ~MachO::MH_NO_HEAP_EXECUTION; - } - if (f & MachO::MH_APP_EXTENSION_SAFE) { - outs() << " APP_EXTENSION_SAFE"; - f &= ~MachO::MH_APP_EXTENSION_SAFE; - } - if (f & MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO) { - outs() << " NLIST_OUTOFSYNC_WITH_DYLDINFO"; - f &= ~MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO; - } - if (f != 0 || flags == 0) - outs() << format(" 0x%08" PRIx32, f); - } else { - outs() << format(" 0x%08" PRIx32, magic); - outs() << format(" %7d", cputype); - outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); - outs() << format(" 0x%02" PRIx32, - (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); - outs() << format(" %10u", filetype); - outs() << format(" %5u", ncmds); - outs() << format(" %10u", sizeofcmds); - outs() << format(" 0x%08" PRIx32, flags); - } - outs() << "\n"; -} - -static void PrintSegmentCommand(uint32_t cmd, uint32_t cmdsize, - StringRef SegName, uint64_t vmaddr, - uint64_t vmsize, uint64_t fileoff, - uint64_t filesize, uint32_t maxprot, - uint32_t initprot, uint32_t nsects, - uint32_t flags, uint32_t object_size, - bool verbose) { - uint64_t expected_cmdsize; - if (cmd == MachO::LC_SEGMENT) { - outs() << " cmd LC_SEGMENT\n"; - expected_cmdsize = nsects; - expected_cmdsize *= sizeof(struct MachO::section); - expected_cmdsize += sizeof(struct MachO::segment_command); - } else { - outs() << " cmd LC_SEGMENT_64\n"; - expected_cmdsize = nsects; - expected_cmdsize *= sizeof(struct MachO::section_64); - expected_cmdsize += sizeof(struct MachO::segment_command_64); - } - outs() << " cmdsize " << cmdsize; - if (cmdsize != expected_cmdsize) - outs() << " Inconsistent size\n"; - else - outs() << "\n"; - outs() << " segname " << SegName << "\n"; - if (cmd == MachO::LC_SEGMENT_64) { - outs() << " vmaddr " << format("0x%016" PRIx64, vmaddr) << "\n"; - outs() << " vmsize " << format("0x%016" PRIx64, vmsize) << "\n"; - } else { - outs() << " vmaddr " << format("0x%08" PRIx64, vmaddr) << "\n"; - outs() << " vmsize " << format("0x%08" PRIx64, vmsize) << "\n"; - } - outs() << " fileoff " << fileoff; - if (fileoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " filesize " << filesize; - if (fileoff + filesize > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - if (verbose) { - if ((maxprot & - ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | - MachO::VM_PROT_EXECUTE)) != 0) - outs() << " maxprot ?" << format("0x%08" PRIx32, maxprot) << "\n"; - else { - outs() << " maxprot "; - outs() << ((maxprot & MachO::VM_PROT_READ) ? "r" : "-"); - outs() << ((maxprot & MachO::VM_PROT_WRITE) ? "w" : "-"); - outs() << ((maxprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); - } - if ((initprot & - ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | - MachO::VM_PROT_EXECUTE)) != 0) - outs() << " initprot ?" << format("0x%08" PRIx32, initprot) << "\n"; - else { - outs() << " initprot "; - outs() << ((initprot & MachO::VM_PROT_READ) ? "r" : "-"); - outs() << ((initprot & MachO::VM_PROT_WRITE) ? "w" : "-"); - outs() << ((initprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); - } - } else { - outs() << " maxprot " << format("0x%08" PRIx32, maxprot) << "\n"; - outs() << " initprot " << format("0x%08" PRIx32, initprot) << "\n"; - } - outs() << " nsects " << nsects << "\n"; - if (verbose) { - outs() << " flags"; - if (flags == 0) - outs() << " (none)\n"; - else { - if (flags & MachO::SG_HIGHVM) { - outs() << " HIGHVM"; - flags &= ~MachO::SG_HIGHVM; - } - if (flags & MachO::SG_FVMLIB) { - outs() << " FVMLIB"; - flags &= ~MachO::SG_FVMLIB; - } - if (flags & MachO::SG_NORELOC) { - outs() << " NORELOC"; - flags &= ~MachO::SG_NORELOC; - } - if (flags & MachO::SG_PROTECTED_VERSION_1) { - outs() << " PROTECTED_VERSION_1"; - flags &= ~MachO::SG_PROTECTED_VERSION_1; - } - if (flags) - outs() << format(" 0x%08" PRIx32, flags) << " (unknown flags)\n"; - else - outs() << "\n"; - } - } else { - outs() << " flags " << format("0x%" PRIx32, flags) << "\n"; - } -} - -static void PrintSection(const char *sectname, const char *segname, - uint64_t addr, uint64_t size, uint32_t offset, - uint32_t align, uint32_t reloff, uint32_t nreloc, - uint32_t flags, uint32_t reserved1, uint32_t reserved2, - uint32_t cmd, const char *sg_segname, - uint32_t filetype, uint32_t object_size, - bool verbose) { - outs() << "Section\n"; - outs() << " sectname " << format("%.16s\n", sectname); - outs() << " segname " << format("%.16s", segname); - if (filetype != MachO::MH_OBJECT && strncmp(sg_segname, segname, 16) != 0) - outs() << " (does not match segment)\n"; - else - outs() << "\n"; - if (cmd == MachO::LC_SEGMENT_64) { - outs() << " addr " << format("0x%016" PRIx64, addr) << "\n"; - outs() << " size " << format("0x%016" PRIx64, size); - } else { - outs() << " addr " << format("0x%08" PRIx64, addr) << "\n"; - outs() << " size " << format("0x%08" PRIx64, size); - } - if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " offset " << offset; - if (offset > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - uint32_t align_shifted = 1 << align; - outs() << " align 2^" << align << " (" << align_shifted << ")\n"; - outs() << " reloff " << reloff; - if (reloff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " nreloc " << nreloc; - if (reloff + nreloc * sizeof(struct MachO::relocation_info) > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - uint32_t section_type = flags & MachO::SECTION_TYPE; - if (verbose) { - outs() << " type"; - if (section_type == MachO::S_REGULAR) - outs() << " S_REGULAR\n"; - else if (section_type == MachO::S_ZEROFILL) - outs() << " S_ZEROFILL\n"; - else if (section_type == MachO::S_CSTRING_LITERALS) - outs() << " S_CSTRING_LITERALS\n"; - else if (section_type == MachO::S_4BYTE_LITERALS) - outs() << " S_4BYTE_LITERALS\n"; - else if (section_type == MachO::S_8BYTE_LITERALS) - outs() << " S_8BYTE_LITERALS\n"; - else if (section_type == MachO::S_16BYTE_LITERALS) - outs() << " S_16BYTE_LITERALS\n"; - else if (section_type == MachO::S_LITERAL_POINTERS) - outs() << " S_LITERAL_POINTERS\n"; - else if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS) - outs() << " S_NON_LAZY_SYMBOL_POINTERS\n"; - else if (section_type == MachO::S_LAZY_SYMBOL_POINTERS) - outs() << " S_LAZY_SYMBOL_POINTERS\n"; - else if (section_type == MachO::S_SYMBOL_STUBS) - outs() << " S_SYMBOL_STUBS\n"; - else if (section_type == MachO::S_MOD_INIT_FUNC_POINTERS) - outs() << " S_MOD_INIT_FUNC_POINTERS\n"; - else if (section_type == MachO::S_MOD_TERM_FUNC_POINTERS) - outs() << " S_MOD_TERM_FUNC_POINTERS\n"; - else if (section_type == MachO::S_COALESCED) - outs() << " S_COALESCED\n"; - else if (section_type == MachO::S_INTERPOSING) - outs() << " S_INTERPOSING\n"; - else if (section_type == MachO::S_DTRACE_DOF) - outs() << " S_DTRACE_DOF\n"; - else if (section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS) - outs() << " S_LAZY_DYLIB_SYMBOL_POINTERS\n"; - else if (section_type == MachO::S_THREAD_LOCAL_REGULAR) - outs() << " S_THREAD_LOCAL_REGULAR\n"; - else if (section_type == MachO::S_THREAD_LOCAL_ZEROFILL) - outs() << " S_THREAD_LOCAL_ZEROFILL\n"; - else if (section_type == MachO::S_THREAD_LOCAL_VARIABLES) - outs() << " S_THREAD_LOCAL_VARIABLES\n"; - else if (section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) - outs() << " S_THREAD_LOCAL_VARIABLE_POINTERS\n"; - else if (section_type == MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS) - outs() << " S_THREAD_LOCAL_INIT_FUNCTION_POINTERS\n"; - else - outs() << format("0x%08" PRIx32, section_type) << "\n"; - outs() << "attributes"; - uint32_t section_attributes = flags & MachO::SECTION_ATTRIBUTES; - if (section_attributes & MachO::S_ATTR_PURE_INSTRUCTIONS) - outs() << " PURE_INSTRUCTIONS"; - if (section_attributes & MachO::S_ATTR_NO_TOC) - outs() << " NO_TOC"; - if (section_attributes & MachO::S_ATTR_STRIP_STATIC_SYMS) - outs() << " STRIP_STATIC_SYMS"; - if (section_attributes & MachO::S_ATTR_NO_DEAD_STRIP) - outs() << " NO_DEAD_STRIP"; - if (section_attributes & MachO::S_ATTR_LIVE_SUPPORT) - outs() << " LIVE_SUPPORT"; - if (section_attributes & MachO::S_ATTR_SELF_MODIFYING_CODE) - outs() << " SELF_MODIFYING_CODE"; - if (section_attributes & MachO::S_ATTR_DEBUG) - outs() << " DEBUG"; - if (section_attributes & MachO::S_ATTR_SOME_INSTRUCTIONS) - outs() << " SOME_INSTRUCTIONS"; - if (section_attributes & MachO::S_ATTR_EXT_RELOC) - outs() << " EXT_RELOC"; - if (section_attributes & MachO::S_ATTR_LOC_RELOC) - outs() << " LOC_RELOC"; - if (section_attributes == 0) - outs() << " (none)"; - outs() << "\n"; - } else - outs() << " flags " << format("0x%08" PRIx32, flags) << "\n"; - outs() << " reserved1 " << reserved1; - if (section_type == MachO::S_SYMBOL_STUBS || - section_type == MachO::S_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || - section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || - section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) - outs() << " (index into indirect symbol table)\n"; - else - outs() << "\n"; - outs() << " reserved2 " << reserved2; - if (section_type == MachO::S_SYMBOL_STUBS) - outs() << " (size of stubs)\n"; - else - outs() << "\n"; -} - -static void PrintSymtabLoadCommand(MachO::symtab_command st, bool Is64Bit, - uint32_t object_size) { - outs() << " cmd LC_SYMTAB\n"; - outs() << " cmdsize " << st.cmdsize; - if (st.cmdsize != sizeof(struct MachO::symtab_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " symoff " << st.symoff; - if (st.symoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " nsyms " << st.nsyms; - uint64_t big_size; - if (Is64Bit) { - big_size = st.nsyms; - big_size *= sizeof(struct MachO::nlist_64); - big_size += st.symoff; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - } else { - big_size = st.nsyms; - big_size *= sizeof(struct MachO::nlist); - big_size += st.symoff; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - } - outs() << " stroff " << st.stroff; - if (st.stroff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " strsize " << st.strsize; - big_size = st.stroff; - big_size += st.strsize; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; -} - -static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst, - uint32_t nsyms, uint32_t object_size, - bool Is64Bit) { - outs() << " cmd LC_DYSYMTAB\n"; - outs() << " cmdsize " << dyst.cmdsize; - if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " ilocalsym " << dyst.ilocalsym; - if (dyst.ilocalsym > nsyms) - outs() << " (greater than the number of symbols)\n"; - else - outs() << "\n"; - outs() << " nlocalsym " << dyst.nlocalsym; - uint64_t big_size; - big_size = dyst.ilocalsym; - big_size += dyst.nlocalsym; - if (big_size > nsyms) - outs() << " (past the end of the symbol table)\n"; - else - outs() << "\n"; - outs() << " iextdefsym " << dyst.iextdefsym; - if (dyst.iextdefsym > nsyms) - outs() << " (greater than the number of symbols)\n"; - else - outs() << "\n"; - outs() << " nextdefsym " << dyst.nextdefsym; - big_size = dyst.iextdefsym; - big_size += dyst.nextdefsym; - if (big_size > nsyms) - outs() << " (past the end of the symbol table)\n"; - else - outs() << "\n"; - outs() << " iundefsym " << dyst.iundefsym; - if (dyst.iundefsym > nsyms) - outs() << " (greater than the number of symbols)\n"; - else - outs() << "\n"; - outs() << " nundefsym " << dyst.nundefsym; - big_size = dyst.iundefsym; - big_size += dyst.nundefsym; - if (big_size > nsyms) - outs() << " (past the end of the symbol table)\n"; - else - outs() << "\n"; - outs() << " tocoff " << dyst.tocoff; - if (dyst.tocoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " ntoc " << dyst.ntoc; - big_size = dyst.ntoc; - big_size *= sizeof(struct MachO::dylib_table_of_contents); - big_size += dyst.tocoff; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " modtaboff " << dyst.modtaboff; - if (dyst.modtaboff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " nmodtab " << dyst.nmodtab; - uint64_t modtabend; - if (Is64Bit) { - modtabend = dyst.nmodtab; - modtabend *= sizeof(struct MachO::dylib_module_64); - modtabend += dyst.modtaboff; - } else { - modtabend = dyst.nmodtab; - modtabend *= sizeof(struct MachO::dylib_module); - modtabend += dyst.modtaboff; - } - if (modtabend > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " extrefsymoff " << dyst.extrefsymoff; - if (dyst.extrefsymoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " nextrefsyms " << dyst.nextrefsyms; - big_size = dyst.nextrefsyms; - big_size *= sizeof(struct MachO::dylib_reference); - big_size += dyst.extrefsymoff; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " indirectsymoff " << dyst.indirectsymoff; - if (dyst.indirectsymoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " nindirectsyms " << dyst.nindirectsyms; - big_size = dyst.nindirectsyms; - big_size *= sizeof(uint32_t); - big_size += dyst.indirectsymoff; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " extreloff " << dyst.extreloff; - if (dyst.extreloff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " nextrel " << dyst.nextrel; - big_size = dyst.nextrel; - big_size *= sizeof(struct MachO::relocation_info); - big_size += dyst.extreloff; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " locreloff " << dyst.locreloff; - if (dyst.locreloff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " nlocrel " << dyst.nlocrel; - big_size = dyst.nlocrel; - big_size *= sizeof(struct MachO::relocation_info); - big_size += dyst.locreloff; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; -} - -static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc, - uint32_t object_size) { - if (dc.cmd == MachO::LC_DYLD_INFO) - outs() << " cmd LC_DYLD_INFO\n"; - else - outs() << " cmd LC_DYLD_INFO_ONLY\n"; - outs() << " cmdsize " << dc.cmdsize; - if (dc.cmdsize != sizeof(struct MachO::dyld_info_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " rebase_off " << dc.rebase_off; - if (dc.rebase_off > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " rebase_size " << dc.rebase_size; - uint64_t big_size; - big_size = dc.rebase_off; - big_size += dc.rebase_size; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " bind_off " << dc.bind_off; - if (dc.bind_off > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " bind_size " << dc.bind_size; - big_size = dc.bind_off; - big_size += dc.bind_size; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " weak_bind_off " << dc.weak_bind_off; - if (dc.weak_bind_off > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " weak_bind_size " << dc.weak_bind_size; - big_size = dc.weak_bind_off; - big_size += dc.weak_bind_size; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " lazy_bind_off " << dc.lazy_bind_off; - if (dc.lazy_bind_off > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " lazy_bind_size " << dc.lazy_bind_size; - big_size = dc.lazy_bind_off; - big_size += dc.lazy_bind_size; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " export_off " << dc.export_off; - if (dc.export_off > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " export_size " << dc.export_size; - big_size = dc.export_off; - big_size += dc.export_size; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; -} - -static void PrintDyldLoadCommand(MachO::dylinker_command dyld, - const char *Ptr) { - if (dyld.cmd == MachO::LC_ID_DYLINKER) - outs() << " cmd LC_ID_DYLINKER\n"; - else if (dyld.cmd == MachO::LC_LOAD_DYLINKER) - outs() << " cmd LC_LOAD_DYLINKER\n"; - else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT) - outs() << " cmd LC_DYLD_ENVIRONMENT\n"; - else - outs() << " cmd ?(" << dyld.cmd << ")\n"; - outs() << " cmdsize " << dyld.cmdsize; - if (dyld.cmdsize < sizeof(struct MachO::dylinker_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - if (dyld.name >= dyld.cmdsize) - outs() << " name ?(bad offset " << dyld.name << ")\n"; - else { - const char *P = (const char *)(Ptr) + dyld.name; - outs() << " name " << P << " (offset " << dyld.name << ")\n"; - } -} - -static void PrintUuidLoadCommand(MachO::uuid_command uuid) { - outs() << " cmd LC_UUID\n"; - outs() << " cmdsize " << uuid.cmdsize; - if (uuid.cmdsize != sizeof(struct MachO::uuid_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " uuid "; - for (int i = 0; i < 16; ++i) { - outs() << format("%02" PRIX32, uuid.uuid[i]); - if (i == 3 || i == 5 || i == 7 || i == 9) - outs() << "-"; - } - outs() << "\n"; -} - -static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) { - outs() << " cmd LC_RPATH\n"; - outs() << " cmdsize " << rpath.cmdsize; - if (rpath.cmdsize < sizeof(struct MachO::rpath_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - if (rpath.path >= rpath.cmdsize) - outs() << " path ?(bad offset " << rpath.path << ")\n"; - else { - const char *P = (const char *)(Ptr) + rpath.path; - outs() << " path " << P << " (offset " << rpath.path << ")\n"; - } -} - -static void PrintVersionMinLoadCommand(MachO::version_min_command vd) { - StringRef LoadCmdName; - switch (vd.cmd) { - case MachO::LC_VERSION_MIN_MACOSX: - LoadCmdName = "LC_VERSION_MIN_MACOSX"; - break; - case MachO::LC_VERSION_MIN_IPHONEOS: - LoadCmdName = "LC_VERSION_MIN_IPHONEOS"; - break; - case MachO::LC_VERSION_MIN_TVOS: - LoadCmdName = "LC_VERSION_MIN_TVOS"; - break; - case MachO::LC_VERSION_MIN_WATCHOS: - LoadCmdName = "LC_VERSION_MIN_WATCHOS"; - break; - default: - llvm_unreachable("Unknown version min load command"); - } - - outs() << " cmd " << LoadCmdName << '\n'; - outs() << " cmdsize " << vd.cmdsize; - if (vd.cmdsize != sizeof(struct MachO::version_min_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " version " - << MachOObjectFile::getVersionMinMajor(vd, false) << "." - << MachOObjectFile::getVersionMinMinor(vd, false); - uint32_t Update = MachOObjectFile::getVersionMinUpdate(vd, false); - if (Update != 0) - outs() << "." << Update; - outs() << "\n"; - if (vd.sdk == 0) - outs() << " sdk n/a"; - else { - outs() << " sdk " - << MachOObjectFile::getVersionMinMajor(vd, true) << "." - << MachOObjectFile::getVersionMinMinor(vd, true); - } - Update = MachOObjectFile::getVersionMinUpdate(vd, true); - if (Update != 0) - outs() << "." << Update; - outs() << "\n"; -} - -static void PrintNoteLoadCommand(MachO::note_command Nt) { - outs() << " cmd LC_NOTE\n"; - outs() << " cmdsize " << Nt.cmdsize; - if (Nt.cmdsize != sizeof(struct MachO::note_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - const char *d = Nt.data_owner; - outs() << "data_owner " << format("%.16s\n", d); - outs() << " offset " << Nt.offset << "\n"; - outs() << " size " << Nt.size << "\n"; -} - -static void PrintBuildToolVersion(MachO::build_tool_version bv) { - outs() << " tool " << MachOObjectFile::getBuildTool(bv.tool) << "\n"; - outs() << " version " << MachOObjectFile::getVersionString(bv.version) - << "\n"; -} - -static void PrintBuildVersionLoadCommand(const MachOObjectFile *obj, - MachO::build_version_command bd) { - outs() << " cmd LC_BUILD_VERSION\n"; - outs() << " cmdsize " << bd.cmdsize; - if (bd.cmdsize != - sizeof(struct MachO::build_version_command) + - bd.ntools * sizeof(struct MachO::build_tool_version)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " platform " << MachOObjectFile::getBuildPlatform(bd.platform) - << "\n"; - if (bd.sdk) - outs() << " sdk " << MachOObjectFile::getVersionString(bd.sdk) - << "\n"; - else - outs() << " sdk n/a\n"; - outs() << " minos " << MachOObjectFile::getVersionString(bd.minos) - << "\n"; - outs() << " ntools " << bd.ntools << "\n"; - for (unsigned i = 0; i < bd.ntools; ++i) { - MachO::build_tool_version bv = obj->getBuildToolVersion(i); - PrintBuildToolVersion(bv); - } -} - -static void PrintSourceVersionCommand(MachO::source_version_command sd) { - outs() << " cmd LC_SOURCE_VERSION\n"; - outs() << " cmdsize " << sd.cmdsize; - if (sd.cmdsize != sizeof(struct MachO::source_version_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - uint64_t a = (sd.version >> 40) & 0xffffff; - uint64_t b = (sd.version >> 30) & 0x3ff; - uint64_t c = (sd.version >> 20) & 0x3ff; - uint64_t d = (sd.version >> 10) & 0x3ff; - uint64_t e = sd.version & 0x3ff; - outs() << " version " << a << "." << b; - if (e != 0) - outs() << "." << c << "." << d << "." << e; - else if (d != 0) - outs() << "." << c << "." << d; - else if (c != 0) - outs() << "." << c; - outs() << "\n"; -} - -static void PrintEntryPointCommand(MachO::entry_point_command ep) { - outs() << " cmd LC_MAIN\n"; - outs() << " cmdsize " << ep.cmdsize; - if (ep.cmdsize != sizeof(struct MachO::entry_point_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " entryoff " << ep.entryoff << "\n"; - outs() << " stacksize " << ep.stacksize << "\n"; -} - -static void PrintEncryptionInfoCommand(MachO::encryption_info_command ec, - uint32_t object_size) { - outs() << " cmd LC_ENCRYPTION_INFO\n"; - outs() << " cmdsize " << ec.cmdsize; - if (ec.cmdsize != sizeof(struct MachO::encryption_info_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " cryptoff " << ec.cryptoff; - if (ec.cryptoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " cryptsize " << ec.cryptsize; - if (ec.cryptsize > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " cryptid " << ec.cryptid << "\n"; -} - -static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec, - uint32_t object_size) { - outs() << " cmd LC_ENCRYPTION_INFO_64\n"; - outs() << " cmdsize " << ec.cmdsize; - if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " cryptoff " << ec.cryptoff; - if (ec.cryptoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " cryptsize " << ec.cryptsize; - if (ec.cryptsize > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " cryptid " << ec.cryptid << "\n"; - outs() << " pad " << ec.pad << "\n"; -} - -static void PrintLinkerOptionCommand(MachO::linker_option_command lo, - const char *Ptr) { - outs() << " cmd LC_LINKER_OPTION\n"; - outs() << " cmdsize " << lo.cmdsize; - if (lo.cmdsize < sizeof(struct MachO::linker_option_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " count " << lo.count << "\n"; - const char *string = Ptr + sizeof(struct MachO::linker_option_command); - uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command); - uint32_t i = 0; - while (left > 0) { - while (*string == '\0' && left > 0) { - string++; - left--; - } - if (left > 0) { - i++; - outs() << " string #" << i << " " << format("%.*s\n", left, string); - uint32_t NullPos = StringRef(string, left).find('\0'); - uint32_t len = std::min(NullPos, left) + 1; - string += len; - left -= len; - } - } - if (lo.count != i) - outs() << " count " << lo.count << " does not match number of strings " - << i << "\n"; -} - -static void PrintSubFrameworkCommand(MachO::sub_framework_command sub, - const char *Ptr) { - outs() << " cmd LC_SUB_FRAMEWORK\n"; - outs() << " cmdsize " << sub.cmdsize; - if (sub.cmdsize < sizeof(struct MachO::sub_framework_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - if (sub.umbrella < sub.cmdsize) { - const char *P = Ptr + sub.umbrella; - outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n"; - } else { - outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n"; - } -} - -static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub, - const char *Ptr) { - outs() << " cmd LC_SUB_UMBRELLA\n"; - outs() << " cmdsize " << sub.cmdsize; - if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - if (sub.sub_umbrella < sub.cmdsize) { - const char *P = Ptr + sub.sub_umbrella; - outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n"; - } else { - outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n"; - } -} - -static void PrintSubLibraryCommand(MachO::sub_library_command sub, - const char *Ptr) { - outs() << " cmd LC_SUB_LIBRARY\n"; - outs() << " cmdsize " << sub.cmdsize; - if (sub.cmdsize < sizeof(struct MachO::sub_library_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - if (sub.sub_library < sub.cmdsize) { - const char *P = Ptr + sub.sub_library; - outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n"; - } else { - outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n"; - } -} - -static void PrintSubClientCommand(MachO::sub_client_command sub, - const char *Ptr) { - outs() << " cmd LC_SUB_CLIENT\n"; - outs() << " cmdsize " << sub.cmdsize; - if (sub.cmdsize < sizeof(struct MachO::sub_client_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - if (sub.client < sub.cmdsize) { - const char *P = Ptr + sub.client; - outs() << " client " << P << " (offset " << sub.client << ")\n"; - } else { - outs() << " client ?(bad offset " << sub.client << ")\n"; - } -} - -static void PrintRoutinesCommand(MachO::routines_command r) { - outs() << " cmd LC_ROUTINES\n"; - outs() << " cmdsize " << r.cmdsize; - if (r.cmdsize != sizeof(struct MachO::routines_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " init_address " << format("0x%08" PRIx32, r.init_address) << "\n"; - outs() << " init_module " << r.init_module << "\n"; - outs() << " reserved1 " << r.reserved1 << "\n"; - outs() << " reserved2 " << r.reserved2 << "\n"; - outs() << " reserved3 " << r.reserved3 << "\n"; - outs() << " reserved4 " << r.reserved4 << "\n"; - outs() << " reserved5 " << r.reserved5 << "\n"; - outs() << " reserved6 " << r.reserved6 << "\n"; -} - -static void PrintRoutinesCommand64(MachO::routines_command_64 r) { - outs() << " cmd LC_ROUTINES_64\n"; - outs() << " cmdsize " << r.cmdsize; - if (r.cmdsize != sizeof(struct MachO::routines_command_64)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " init_address " << format("0x%016" PRIx64, r.init_address) << "\n"; - outs() << " init_module " << r.init_module << "\n"; - outs() << " reserved1 " << r.reserved1 << "\n"; - outs() << " reserved2 " << r.reserved2 << "\n"; - outs() << " reserved3 " << r.reserved3 << "\n"; - outs() << " reserved4 " << r.reserved4 << "\n"; - outs() << " reserved5 " << r.reserved5 << "\n"; - outs() << " reserved6 " << r.reserved6 << "\n"; -} - -static void Print_x86_thread_state32_t(MachO::x86_thread_state32_t &cpu32) { - outs() << "\t eax " << format("0x%08" PRIx32, cpu32.eax); - outs() << " ebx " << format("0x%08" PRIx32, cpu32.ebx); - outs() << " ecx " << format("0x%08" PRIx32, cpu32.ecx); - outs() << " edx " << format("0x%08" PRIx32, cpu32.edx) << "\n"; - outs() << "\t edi " << format("0x%08" PRIx32, cpu32.edi); - outs() << " esi " << format("0x%08" PRIx32, cpu32.esi); - outs() << " ebp " << format("0x%08" PRIx32, cpu32.ebp); - outs() << " esp " << format("0x%08" PRIx32, cpu32.esp) << "\n"; - outs() << "\t ss " << format("0x%08" PRIx32, cpu32.ss); - outs() << " eflags " << format("0x%08" PRIx32, cpu32.eflags); - outs() << " eip " << format("0x%08" PRIx32, cpu32.eip); - outs() << " cs " << format("0x%08" PRIx32, cpu32.cs) << "\n"; - outs() << "\t ds " << format("0x%08" PRIx32, cpu32.ds); - outs() << " es " << format("0x%08" PRIx32, cpu32.es); - outs() << " fs " << format("0x%08" PRIx32, cpu32.fs); - outs() << " gs " << format("0x%08" PRIx32, cpu32.gs) << "\n"; -} - -static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) { - outs() << " rax " << format("0x%016" PRIx64, cpu64.rax); - outs() << " rbx " << format("0x%016" PRIx64, cpu64.rbx); - outs() << " rcx " << format("0x%016" PRIx64, cpu64.rcx) << "\n"; - outs() << " rdx " << format("0x%016" PRIx64, cpu64.rdx); - outs() << " rdi " << format("0x%016" PRIx64, cpu64.rdi); - outs() << " rsi " << format("0x%016" PRIx64, cpu64.rsi) << "\n"; - outs() << " rbp " << format("0x%016" PRIx64, cpu64.rbp); - outs() << " rsp " << format("0x%016" PRIx64, cpu64.rsp); - outs() << " r8 " << format("0x%016" PRIx64, cpu64.r8) << "\n"; - outs() << " r9 " << format("0x%016" PRIx64, cpu64.r9); - outs() << " r10 " << format("0x%016" PRIx64, cpu64.r10); - outs() << " r11 " << format("0x%016" PRIx64, cpu64.r11) << "\n"; - outs() << " r12 " << format("0x%016" PRIx64, cpu64.r12); - outs() << " r13 " << format("0x%016" PRIx64, cpu64.r13); - outs() << " r14 " << format("0x%016" PRIx64, cpu64.r14) << "\n"; - outs() << " r15 " << format("0x%016" PRIx64, cpu64.r15); - outs() << " rip " << format("0x%016" PRIx64, cpu64.rip) << "\n"; - outs() << "rflags " << format("0x%016" PRIx64, cpu64.rflags); - outs() << " cs " << format("0x%016" PRIx64, cpu64.cs); - outs() << " fs " << format("0x%016" PRIx64, cpu64.fs) << "\n"; - outs() << " gs " << format("0x%016" PRIx64, cpu64.gs) << "\n"; -} - -static void Print_mmst_reg(MachO::mmst_reg_t &r) { - uint32_t f; - outs() << "\t mmst_reg "; - for (f = 0; f < 10; f++) - outs() << format("%02" PRIx32, (r.mmst_reg[f] & 0xff)) << " "; - outs() << "\n"; - outs() << "\t mmst_rsrv "; - for (f = 0; f < 6; f++) - outs() << format("%02" PRIx32, (r.mmst_rsrv[f] & 0xff)) << " "; - outs() << "\n"; -} - -static void Print_xmm_reg(MachO::xmm_reg_t &r) { - uint32_t f; - outs() << "\t xmm_reg "; - for (f = 0; f < 16; f++) - outs() << format("%02" PRIx32, (r.xmm_reg[f] & 0xff)) << " "; - outs() << "\n"; -} - -static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) { - outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0]; - outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n"; - outs() << "\t control: invalid " << fpu.fpu_fcw.invalid; - outs() << " denorm " << fpu.fpu_fcw.denorm; - outs() << " zdiv " << fpu.fpu_fcw.zdiv; - outs() << " ovrfl " << fpu.fpu_fcw.ovrfl; - outs() << " undfl " << fpu.fpu_fcw.undfl; - outs() << " precis " << fpu.fpu_fcw.precis << "\n"; - outs() << "\t\t pc "; - if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B) - outs() << "FP_PREC_24B "; - else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B) - outs() << "FP_PREC_53B "; - else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B) - outs() << "FP_PREC_64B "; - else - outs() << fpu.fpu_fcw.pc << " "; - outs() << "rc "; - if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR) - outs() << "FP_RND_NEAR "; - else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN) - outs() << "FP_RND_DOWN "; - else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP) - outs() << "FP_RND_UP "; - else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP) - outs() << "FP_CHOP "; - outs() << "\n"; - outs() << "\t status: invalid " << fpu.fpu_fsw.invalid; - outs() << " denorm " << fpu.fpu_fsw.denorm; - outs() << " zdiv " << fpu.fpu_fsw.zdiv; - outs() << " ovrfl " << fpu.fpu_fsw.ovrfl; - outs() << " undfl " << fpu.fpu_fsw.undfl; - outs() << " precis " << fpu.fpu_fsw.precis; - outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n"; - outs() << "\t errsumm " << fpu.fpu_fsw.errsumm; - outs() << " c0 " << fpu.fpu_fsw.c0; - outs() << " c1 " << fpu.fpu_fsw.c1; - outs() << " c2 " << fpu.fpu_fsw.c2; - outs() << " tos " << fpu.fpu_fsw.tos; - outs() << " c3 " << fpu.fpu_fsw.c3; - outs() << " busy " << fpu.fpu_fsw.busy << "\n"; - outs() << "\t fpu_ftw " << format("0x%02" PRIx32, fpu.fpu_ftw); - outs() << " fpu_rsrv1 " << format("0x%02" PRIx32, fpu.fpu_rsrv1); - outs() << " fpu_fop " << format("0x%04" PRIx32, fpu.fpu_fop); - outs() << " fpu_ip " << format("0x%08" PRIx32, fpu.fpu_ip) << "\n"; - outs() << "\t fpu_cs " << format("0x%04" PRIx32, fpu.fpu_cs); - outs() << " fpu_rsrv2 " << format("0x%04" PRIx32, fpu.fpu_rsrv2); - outs() << " fpu_dp " << format("0x%08" PRIx32, fpu.fpu_dp); - outs() << " fpu_ds " << format("0x%04" PRIx32, fpu.fpu_ds) << "\n"; - outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32, fpu.fpu_rsrv3); - outs() << " fpu_mxcsr " << format("0x%08" PRIx32, fpu.fpu_mxcsr); - outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32, fpu.fpu_mxcsrmask); - outs() << "\n"; - outs() << "\t fpu_stmm0:\n"; - Print_mmst_reg(fpu.fpu_stmm0); - outs() << "\t fpu_stmm1:\n"; - Print_mmst_reg(fpu.fpu_stmm1); - outs() << "\t fpu_stmm2:\n"; - Print_mmst_reg(fpu.fpu_stmm2); - outs() << "\t fpu_stmm3:\n"; - Print_mmst_reg(fpu.fpu_stmm3); - outs() << "\t fpu_stmm4:\n"; - Print_mmst_reg(fpu.fpu_stmm4); - outs() << "\t fpu_stmm5:\n"; - Print_mmst_reg(fpu.fpu_stmm5); - outs() << "\t fpu_stmm6:\n"; - Print_mmst_reg(fpu.fpu_stmm6); - outs() << "\t fpu_stmm7:\n"; - Print_mmst_reg(fpu.fpu_stmm7); - outs() << "\t fpu_xmm0:\n"; - Print_xmm_reg(fpu.fpu_xmm0); - outs() << "\t fpu_xmm1:\n"; - Print_xmm_reg(fpu.fpu_xmm1); - outs() << "\t fpu_xmm2:\n"; - Print_xmm_reg(fpu.fpu_xmm2); - outs() << "\t fpu_xmm3:\n"; - Print_xmm_reg(fpu.fpu_xmm3); - outs() << "\t fpu_xmm4:\n"; - Print_xmm_reg(fpu.fpu_xmm4); - outs() << "\t fpu_xmm5:\n"; - Print_xmm_reg(fpu.fpu_xmm5); - outs() << "\t fpu_xmm6:\n"; - Print_xmm_reg(fpu.fpu_xmm6); - outs() << "\t fpu_xmm7:\n"; - Print_xmm_reg(fpu.fpu_xmm7); - outs() << "\t fpu_xmm8:\n"; - Print_xmm_reg(fpu.fpu_xmm8); - outs() << "\t fpu_xmm9:\n"; - Print_xmm_reg(fpu.fpu_xmm9); - outs() << "\t fpu_xmm10:\n"; - Print_xmm_reg(fpu.fpu_xmm10); - outs() << "\t fpu_xmm11:\n"; - Print_xmm_reg(fpu.fpu_xmm11); - outs() << "\t fpu_xmm12:\n"; - Print_xmm_reg(fpu.fpu_xmm12); - outs() << "\t fpu_xmm13:\n"; - Print_xmm_reg(fpu.fpu_xmm13); - outs() << "\t fpu_xmm14:\n"; - Print_xmm_reg(fpu.fpu_xmm14); - outs() << "\t fpu_xmm15:\n"; - Print_xmm_reg(fpu.fpu_xmm15); - outs() << "\t fpu_rsrv4:\n"; - for (uint32_t f = 0; f < 6; f++) { - outs() << "\t "; - for (uint32_t g = 0; g < 16; g++) - outs() << format("%02" PRIx32, fpu.fpu_rsrv4[f * g]) << " "; - outs() << "\n"; - } - outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32, fpu.fpu_reserved1); - outs() << "\n"; -} - -static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) { - outs() << "\t trapno " << format("0x%08" PRIx32, exc64.trapno); - outs() << " err " << format("0x%08" PRIx32, exc64.err); - outs() << " faultvaddr " << format("0x%016" PRIx64, exc64.faultvaddr) << "\n"; -} - -static void Print_arm_thread_state32_t(MachO::arm_thread_state32_t &cpu32) { - outs() << "\t r0 " << format("0x%08" PRIx32, cpu32.r[0]); - outs() << " r1 " << format("0x%08" PRIx32, cpu32.r[1]); - outs() << " r2 " << format("0x%08" PRIx32, cpu32.r[2]); - outs() << " r3 " << format("0x%08" PRIx32, cpu32.r[3]) << "\n"; - outs() << "\t r4 " << format("0x%08" PRIx32, cpu32.r[4]); - outs() << " r5 " << format("0x%08" PRIx32, cpu32.r[5]); - outs() << " r6 " << format("0x%08" PRIx32, cpu32.r[6]); - outs() << " r7 " << format("0x%08" PRIx32, cpu32.r[7]) << "\n"; - outs() << "\t r8 " << format("0x%08" PRIx32, cpu32.r[8]); - outs() << " r9 " << format("0x%08" PRIx32, cpu32.r[9]); - outs() << " r10 " << format("0x%08" PRIx32, cpu32.r[10]); - outs() << " r11 " << format("0x%08" PRIx32, cpu32.r[11]) << "\n"; - outs() << "\t r12 " << format("0x%08" PRIx32, cpu32.r[12]); - outs() << " sp " << format("0x%08" PRIx32, cpu32.sp); - outs() << " lr " << format("0x%08" PRIx32, cpu32.lr); - outs() << " pc " << format("0x%08" PRIx32, cpu32.pc) << "\n"; - outs() << "\t cpsr " << format("0x%08" PRIx32, cpu32.cpsr) << "\n"; -} - -static void Print_arm_thread_state64_t(MachO::arm_thread_state64_t &cpu64) { - outs() << "\t x0 " << format("0x%016" PRIx64, cpu64.x[0]); - outs() << " x1 " << format("0x%016" PRIx64, cpu64.x[1]); - outs() << " x2 " << format("0x%016" PRIx64, cpu64.x[2]) << "\n"; - outs() << "\t x3 " << format("0x%016" PRIx64, cpu64.x[3]); - outs() << " x4 " << format("0x%016" PRIx64, cpu64.x[4]); - outs() << " x5 " << format("0x%016" PRIx64, cpu64.x[5]) << "\n"; - outs() << "\t x6 " << format("0x%016" PRIx64, cpu64.x[6]); - outs() << " x7 " << format("0x%016" PRIx64, cpu64.x[7]); - outs() << " x8 " << format("0x%016" PRIx64, cpu64.x[8]) << "\n"; - outs() << "\t x9 " << format("0x%016" PRIx64, cpu64.x[9]); - outs() << " x10 " << format("0x%016" PRIx64, cpu64.x[10]); - outs() << " x11 " << format("0x%016" PRIx64, cpu64.x[11]) << "\n"; - outs() << "\t x12 " << format("0x%016" PRIx64, cpu64.x[12]); - outs() << " x13 " << format("0x%016" PRIx64, cpu64.x[13]); - outs() << " x14 " << format("0x%016" PRIx64, cpu64.x[14]) << "\n"; - outs() << "\t x15 " << format("0x%016" PRIx64, cpu64.x[15]); - outs() << " x16 " << format("0x%016" PRIx64, cpu64.x[16]); - outs() << " x17 " << format("0x%016" PRIx64, cpu64.x[17]) << "\n"; - outs() << "\t x18 " << format("0x%016" PRIx64, cpu64.x[18]); - outs() << " x19 " << format("0x%016" PRIx64, cpu64.x[19]); - outs() << " x20 " << format("0x%016" PRIx64, cpu64.x[20]) << "\n"; - outs() << "\t x21 " << format("0x%016" PRIx64, cpu64.x[21]); - outs() << " x22 " << format("0x%016" PRIx64, cpu64.x[22]); - outs() << " x23 " << format("0x%016" PRIx64, cpu64.x[23]) << "\n"; - outs() << "\t x24 " << format("0x%016" PRIx64, cpu64.x[24]); - outs() << " x25 " << format("0x%016" PRIx64, cpu64.x[25]); - outs() << " x26 " << format("0x%016" PRIx64, cpu64.x[26]) << "\n"; - outs() << "\t x27 " << format("0x%016" PRIx64, cpu64.x[27]); - outs() << " x28 " << format("0x%016" PRIx64, cpu64.x[28]); - outs() << " fp " << format("0x%016" PRIx64, cpu64.fp) << "\n"; - outs() << "\t lr " << format("0x%016" PRIx64, cpu64.lr); - outs() << " sp " << format("0x%016" PRIx64, cpu64.sp); - outs() << " pc " << format("0x%016" PRIx64, cpu64.pc) << "\n"; - outs() << "\t cpsr " << format("0x%08" PRIx32, cpu64.cpsr) << "\n"; -} - -static void PrintThreadCommand(MachO::thread_command t, const char *Ptr, - bool isLittleEndian, uint32_t cputype) { - if (t.cmd == MachO::LC_THREAD) - outs() << " cmd LC_THREAD\n"; - else if (t.cmd == MachO::LC_UNIXTHREAD) - outs() << " cmd LC_UNIXTHREAD\n"; - else - outs() << " cmd " << t.cmd << " (unknown)\n"; - outs() << " cmdsize " << t.cmdsize; - if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - - const char *begin = Ptr + sizeof(struct MachO::thread_command); - const char *end = Ptr + t.cmdsize; - uint32_t flavor, count, left; - if (cputype == MachO::CPU_TYPE_I386) { - while (begin < end) { - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&flavor, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - flavor = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(flavor); - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&count, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - count = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(count); - if (flavor == MachO::x86_THREAD_STATE32) { - outs() << " flavor i386_THREAD_STATE\n"; - if (count == MachO::x86_THREAD_STATE32_COUNT) - outs() << " count i386_THREAD_STATE_COUNT\n"; - else - outs() << " count " << count - << " (not x86_THREAD_STATE32_COUNT)\n"; - MachO::x86_thread_state32_t cpu32; - left = end - begin; - if (left >= sizeof(MachO::x86_thread_state32_t)) { - memcpy(&cpu32, begin, sizeof(MachO::x86_thread_state32_t)); - begin += sizeof(MachO::x86_thread_state32_t); - } else { - memset(&cpu32, '\0', sizeof(MachO::x86_thread_state32_t)); - memcpy(&cpu32, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(cpu32); - Print_x86_thread_state32_t(cpu32); - } else if (flavor == MachO::x86_THREAD_STATE) { - outs() << " flavor x86_THREAD_STATE\n"; - if (count == MachO::x86_THREAD_STATE_COUNT) - outs() << " count x86_THREAD_STATE_COUNT\n"; - else - outs() << " count " << count - << " (not x86_THREAD_STATE_COUNT)\n"; - struct MachO::x86_thread_state_t ts; - left = end - begin; - if (left >= sizeof(MachO::x86_thread_state_t)) { - memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); - begin += sizeof(MachO::x86_thread_state_t); - } else { - memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); - memcpy(&ts, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(ts); - if (ts.tsh.flavor == MachO::x86_THREAD_STATE32) { - outs() << "\t tsh.flavor x86_THREAD_STATE32 "; - if (ts.tsh.count == MachO::x86_THREAD_STATE32_COUNT) - outs() << "tsh.count x86_THREAD_STATE32_COUNT\n"; - else - outs() << "tsh.count " << ts.tsh.count - << " (not x86_THREAD_STATE32_COUNT\n"; - Print_x86_thread_state32_t(ts.uts.ts32); - } else { - outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " - << ts.tsh.count << "\n"; - } - } else { - outs() << " flavor " << flavor << " (unknown)\n"; - outs() << " count " << count << "\n"; - outs() << " state (unknown)\n"; - begin += count * sizeof(uint32_t); - } - } - } else if (cputype == MachO::CPU_TYPE_X86_64) { - while (begin < end) { - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&flavor, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - flavor = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(flavor); - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&count, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - count = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(count); - if (flavor == MachO::x86_THREAD_STATE64) { - outs() << " flavor x86_THREAD_STATE64\n"; - if (count == MachO::x86_THREAD_STATE64_COUNT) - outs() << " count x86_THREAD_STATE64_COUNT\n"; - else - outs() << " count " << count - << " (not x86_THREAD_STATE64_COUNT)\n"; - MachO::x86_thread_state64_t cpu64; - left = end - begin; - if (left >= sizeof(MachO::x86_thread_state64_t)) { - memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t)); - begin += sizeof(MachO::x86_thread_state64_t); - } else { - memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t)); - memcpy(&cpu64, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(cpu64); - Print_x86_thread_state64_t(cpu64); - } else if (flavor == MachO::x86_THREAD_STATE) { - outs() << " flavor x86_THREAD_STATE\n"; - if (count == MachO::x86_THREAD_STATE_COUNT) - outs() << " count x86_THREAD_STATE_COUNT\n"; - else - outs() << " count " << count - << " (not x86_THREAD_STATE_COUNT)\n"; - struct MachO::x86_thread_state_t ts; - left = end - begin; - if (left >= sizeof(MachO::x86_thread_state_t)) { - memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); - begin += sizeof(MachO::x86_thread_state_t); - } else { - memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); - memcpy(&ts, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(ts); - if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) { - outs() << "\t tsh.flavor x86_THREAD_STATE64 "; - if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT) - outs() << "tsh.count x86_THREAD_STATE64_COUNT\n"; - else - outs() << "tsh.count " << ts.tsh.count - << " (not x86_THREAD_STATE64_COUNT\n"; - Print_x86_thread_state64_t(ts.uts.ts64); - } else { - outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " - << ts.tsh.count << "\n"; - } - } else if (flavor == MachO::x86_FLOAT_STATE) { - outs() << " flavor x86_FLOAT_STATE\n"; - if (count == MachO::x86_FLOAT_STATE_COUNT) - outs() << " count x86_FLOAT_STATE_COUNT\n"; - else - outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n"; - struct MachO::x86_float_state_t fs; - left = end - begin; - if (left >= sizeof(MachO::x86_float_state_t)) { - memcpy(&fs, begin, sizeof(MachO::x86_float_state_t)); - begin += sizeof(MachO::x86_float_state_t); - } else { - memset(&fs, '\0', sizeof(MachO::x86_float_state_t)); - memcpy(&fs, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(fs); - if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) { - outs() << "\t fsh.flavor x86_FLOAT_STATE64 "; - if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT) - outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n"; - else - outs() << "fsh.count " << fs.fsh.count - << " (not x86_FLOAT_STATE64_COUNT\n"; - Print_x86_float_state_t(fs.ufs.fs64); - } else { - outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count " - << fs.fsh.count << "\n"; - } - } else if (flavor == MachO::x86_EXCEPTION_STATE) { - outs() << " flavor x86_EXCEPTION_STATE\n"; - if (count == MachO::x86_EXCEPTION_STATE_COUNT) - outs() << " count x86_EXCEPTION_STATE_COUNT\n"; - else - outs() << " count " << count - << " (not x86_EXCEPTION_STATE_COUNT)\n"; - struct MachO::x86_exception_state_t es; - left = end - begin; - if (left >= sizeof(MachO::x86_exception_state_t)) { - memcpy(&es, begin, sizeof(MachO::x86_exception_state_t)); - begin += sizeof(MachO::x86_exception_state_t); - } else { - memset(&es, '\0', sizeof(MachO::x86_exception_state_t)); - memcpy(&es, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(es); - if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) { - outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n"; - if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT) - outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n"; - else - outs() << "\t esh.count " << es.esh.count - << " (not x86_EXCEPTION_STATE64_COUNT\n"; - Print_x86_exception_state_t(es.ues.es64); - } else { - outs() << "\t esh.flavor " << es.esh.flavor << " esh.count " - << es.esh.count << "\n"; - } - } else if (flavor == MachO::x86_EXCEPTION_STATE64) { - outs() << " flavor x86_EXCEPTION_STATE64\n"; - if (count == MachO::x86_EXCEPTION_STATE64_COUNT) - outs() << " count x86_EXCEPTION_STATE64_COUNT\n"; - else - outs() << " count " << count - << " (not x86_EXCEPTION_STATE64_COUNT)\n"; - struct MachO::x86_exception_state64_t es64; - left = end - begin; - if (left >= sizeof(MachO::x86_exception_state64_t)) { - memcpy(&es64, begin, sizeof(MachO::x86_exception_state64_t)); - begin += sizeof(MachO::x86_exception_state64_t); - } else { - memset(&es64, '\0', sizeof(MachO::x86_exception_state64_t)); - memcpy(&es64, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(es64); - Print_x86_exception_state_t(es64); - } else { - outs() << " flavor " << flavor << " (unknown)\n"; - outs() << " count " << count << "\n"; - outs() << " state (unknown)\n"; - begin += count * sizeof(uint32_t); - } - } - } else if (cputype == MachO::CPU_TYPE_ARM) { - while (begin < end) { - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&flavor, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - flavor = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(flavor); - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&count, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - count = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(count); - if (flavor == MachO::ARM_THREAD_STATE) { - outs() << " flavor ARM_THREAD_STATE\n"; - if (count == MachO::ARM_THREAD_STATE_COUNT) - outs() << " count ARM_THREAD_STATE_COUNT\n"; - else - outs() << " count " << count - << " (not ARM_THREAD_STATE_COUNT)\n"; - MachO::arm_thread_state32_t cpu32; - left = end - begin; - if (left >= sizeof(MachO::arm_thread_state32_t)) { - memcpy(&cpu32, begin, sizeof(MachO::arm_thread_state32_t)); - begin += sizeof(MachO::arm_thread_state32_t); - } else { - memset(&cpu32, '\0', sizeof(MachO::arm_thread_state32_t)); - memcpy(&cpu32, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(cpu32); - Print_arm_thread_state32_t(cpu32); - } else { - outs() << " flavor " << flavor << " (unknown)\n"; - outs() << " count " << count << "\n"; - outs() << " state (unknown)\n"; - begin += count * sizeof(uint32_t); - } - } - } else if (cputype == MachO::CPU_TYPE_ARM64 || - cputype == MachO::CPU_TYPE_ARM64_32) { - while (begin < end) { - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&flavor, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - flavor = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(flavor); - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&count, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - count = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(count); - if (flavor == MachO::ARM_THREAD_STATE64) { - outs() << " flavor ARM_THREAD_STATE64\n"; - if (count == MachO::ARM_THREAD_STATE64_COUNT) - outs() << " count ARM_THREAD_STATE64_COUNT\n"; - else - outs() << " count " << count - << " (not ARM_THREAD_STATE64_COUNT)\n"; - MachO::arm_thread_state64_t cpu64; - left = end - begin; - if (left >= sizeof(MachO::arm_thread_state64_t)) { - memcpy(&cpu64, begin, sizeof(MachO::arm_thread_state64_t)); - begin += sizeof(MachO::arm_thread_state64_t); - } else { - memset(&cpu64, '\0', sizeof(MachO::arm_thread_state64_t)); - memcpy(&cpu64, begin, left); - begin += left; - } - if (isLittleEndian != sys::IsLittleEndianHost) - swapStruct(cpu64); - Print_arm_thread_state64_t(cpu64); - } else { - outs() << " flavor " << flavor << " (unknown)\n"; - outs() << " count " << count << "\n"; - outs() << " state (unknown)\n"; - begin += count * sizeof(uint32_t); - } - } - } else { - while (begin < end) { - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&flavor, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - flavor = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(flavor); - if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { - memcpy((char *)&count, begin, sizeof(uint32_t)); - begin += sizeof(uint32_t); - } else { - count = 0; - begin = end; - } - if (isLittleEndian != sys::IsLittleEndianHost) - sys::swapByteOrder(count); - outs() << " flavor " << flavor << "\n"; - outs() << " count " << count << "\n"; - outs() << " state (Unknown cputype/cpusubtype)\n"; - begin += count * sizeof(uint32_t); - } - } -} - -static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) { - if (dl.cmd == MachO::LC_ID_DYLIB) - outs() << " cmd LC_ID_DYLIB\n"; - else if (dl.cmd == MachO::LC_LOAD_DYLIB) - outs() << " cmd LC_LOAD_DYLIB\n"; - else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB) - outs() << " cmd LC_LOAD_WEAK_DYLIB\n"; - else if (dl.cmd == MachO::LC_REEXPORT_DYLIB) - outs() << " cmd LC_REEXPORT_DYLIB\n"; - else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB) - outs() << " cmd LC_LAZY_LOAD_DYLIB\n"; - else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB) - outs() << " cmd LC_LOAD_UPWARD_DYLIB\n"; - else - outs() << " cmd " << dl.cmd << " (unknown)\n"; - outs() << " cmdsize " << dl.cmdsize; - if (dl.cmdsize < sizeof(struct MachO::dylib_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - if (dl.dylib.name < dl.cmdsize) { - const char *P = (const char *)(Ptr) + dl.dylib.name; - outs() << " name " << P << " (offset " << dl.dylib.name << ")\n"; - } else { - outs() << " name ?(bad offset " << dl.dylib.name << ")\n"; - } - outs() << " time stamp " << dl.dylib.timestamp << " "; - time_t t = dl.dylib.timestamp; - outs() << ctime(&t); - outs() << " current version "; - if (dl.dylib.current_version == 0xffffffff) - outs() << "n/a\n"; - else - outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "." - << ((dl.dylib.current_version >> 8) & 0xff) << "." - << (dl.dylib.current_version & 0xff) << "\n"; - outs() << "compatibility version "; - if (dl.dylib.compatibility_version == 0xffffffff) - outs() << "n/a\n"; - else - outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." - << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." - << (dl.dylib.compatibility_version & 0xff) << "\n"; -} - -static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld, - uint32_t object_size) { - if (ld.cmd == MachO::LC_CODE_SIGNATURE) - outs() << " cmd LC_CODE_SIGNATURE\n"; - else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO) - outs() << " cmd LC_SEGMENT_SPLIT_INFO\n"; - else if (ld.cmd == MachO::LC_FUNCTION_STARTS) - outs() << " cmd LC_FUNCTION_STARTS\n"; - else if (ld.cmd == MachO::LC_DATA_IN_CODE) - outs() << " cmd LC_DATA_IN_CODE\n"; - else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS) - outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n"; - else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) - outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n"; - else - outs() << " cmd " << ld.cmd << " (?)\n"; - outs() << " cmdsize " << ld.cmdsize; - if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command)) - outs() << " Incorrect size\n"; - else - outs() << "\n"; - outs() << " dataoff " << ld.dataoff; - if (ld.dataoff > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; - outs() << " datasize " << ld.datasize; - uint64_t big_size = ld.dataoff; - big_size += ld.datasize; - if (big_size > object_size) - outs() << " (past end of file)\n"; - else - outs() << "\n"; -} - -static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype, - uint32_t cputype, bool verbose) { - StringRef Buf = Obj->getData(); - unsigned Index = 0; - for (const auto &Command : Obj->load_commands()) { - outs() << "Load command " << Index++ << "\n"; - if (Command.C.cmd == MachO::LC_SEGMENT) { - MachO::segment_command SLC = Obj->getSegmentLoadCommand(Command); - const char *sg_segname = SLC.segname; - PrintSegmentCommand(SLC.cmd, SLC.cmdsize, SLC.segname, SLC.vmaddr, - SLC.vmsize, SLC.fileoff, SLC.filesize, SLC.maxprot, - SLC.initprot, SLC.nsects, SLC.flags, Buf.size(), - verbose); - for (unsigned j = 0; j < SLC.nsects; j++) { - MachO::section S = Obj->getSection(Command, j); - PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align, - S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2, - SLC.cmd, sg_segname, filetype, Buf.size(), verbose); - } - } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { - MachO::segment_command_64 SLC_64 = Obj->getSegment64LoadCommand(Command); - const char *sg_segname = SLC_64.segname; - PrintSegmentCommand(SLC_64.cmd, SLC_64.cmdsize, SLC_64.segname, - SLC_64.vmaddr, SLC_64.vmsize, SLC_64.fileoff, - SLC_64.filesize, SLC_64.maxprot, SLC_64.initprot, - SLC_64.nsects, SLC_64.flags, Buf.size(), verbose); - for (unsigned j = 0; j < SLC_64.nsects; j++) { - MachO::section_64 S_64 = Obj->getSection64(Command, j); - PrintSection(S_64.sectname, S_64.segname, S_64.addr, S_64.size, - S_64.offset, S_64.align, S_64.reloff, S_64.nreloc, - S_64.flags, S_64.reserved1, S_64.reserved2, SLC_64.cmd, - sg_segname, filetype, Buf.size(), verbose); - } - } else if (Command.C.cmd == MachO::LC_SYMTAB) { - MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); - PrintSymtabLoadCommand(Symtab, Obj->is64Bit(), Buf.size()); - } else if (Command.C.cmd == MachO::LC_DYSYMTAB) { - MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand(); - MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); - PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(), - Obj->is64Bit()); - } else if (Command.C.cmd == MachO::LC_DYLD_INFO || - Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) { - MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command); - PrintDyldInfoLoadCommand(DyldInfo, Buf.size()); - } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER || - Command.C.cmd == MachO::LC_ID_DYLINKER || - Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) { - MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command); - PrintDyldLoadCommand(Dyld, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_UUID) { - MachO::uuid_command Uuid = Obj->getUuidCommand(Command); - PrintUuidLoadCommand(Uuid); - } else if (Command.C.cmd == MachO::LC_RPATH) { - MachO::rpath_command Rpath = Obj->getRpathCommand(Command); - PrintRpathLoadCommand(Rpath, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX || - Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS || - Command.C.cmd == MachO::LC_VERSION_MIN_TVOS || - Command.C.cmd == MachO::LC_VERSION_MIN_WATCHOS) { - MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command); - PrintVersionMinLoadCommand(Vd); - } else if (Command.C.cmd == MachO::LC_NOTE) { - MachO::note_command Nt = Obj->getNoteLoadCommand(Command); - PrintNoteLoadCommand(Nt); - } else if (Command.C.cmd == MachO::LC_BUILD_VERSION) { - MachO::build_version_command Bv = - Obj->getBuildVersionLoadCommand(Command); - PrintBuildVersionLoadCommand(Obj, Bv); - } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) { - MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command); - PrintSourceVersionCommand(Sd); - } else if (Command.C.cmd == MachO::LC_MAIN) { - MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command); - PrintEntryPointCommand(Ep); - } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO) { - MachO::encryption_info_command Ei = - Obj->getEncryptionInfoCommand(Command); - PrintEncryptionInfoCommand(Ei, Buf.size()); - } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) { - MachO::encryption_info_command_64 Ei = - Obj->getEncryptionInfoCommand64(Command); - PrintEncryptionInfoCommand64(Ei, Buf.size()); - } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) { - MachO::linker_option_command Lo = - Obj->getLinkerOptionLoadCommand(Command); - PrintLinkerOptionCommand(Lo, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) { - MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command); - PrintSubFrameworkCommand(Sf, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) { - MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command); - PrintSubUmbrellaCommand(Sf, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) { - MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command); - PrintSubLibraryCommand(Sl, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) { - MachO::sub_client_command Sc = Obj->getSubClientCommand(Command); - PrintSubClientCommand(Sc, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_ROUTINES) { - MachO::routines_command Rc = Obj->getRoutinesCommand(Command); - PrintRoutinesCommand(Rc); - } else if (Command.C.cmd == MachO::LC_ROUTINES_64) { - MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command); - PrintRoutinesCommand64(Rc); - } else if (Command.C.cmd == MachO::LC_THREAD || - Command.C.cmd == MachO::LC_UNIXTHREAD) { - MachO::thread_command Tc = Obj->getThreadCommand(Command); - PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype); - } else 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); - PrintDylibCommand(Dl, Command.Ptr); - } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE || - Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO || - Command.C.cmd == MachO::LC_FUNCTION_STARTS || - Command.C.cmd == MachO::LC_DATA_IN_CODE || - Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS || - Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) { - MachO::linkedit_data_command Ld = - Obj->getLinkeditDataLoadCommand(Command); - PrintLinkEditDataCommand(Ld, Buf.size()); - } else { - outs() << " cmd ?(" << format("0x%08" PRIx32, Command.C.cmd) - << ")\n"; - outs() << " cmdsize " << Command.C.cmdsize << "\n"; - // TODO: get and print the raw bytes of the load command. - } - // TODO: print all the other kinds of load commands. - } -} - -static void PrintMachHeader(const MachOObjectFile *Obj, bool verbose) { - if (Obj->is64Bit()) { - MachO::mach_header_64 H_64; - H_64 = Obj->getHeader64(); - PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype, - H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose); - } else { - MachO::mach_header H; - H = Obj->getHeader(); - PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds, - H.sizeofcmds, H.flags, verbose); - } -} - -void printMachOFileHeader(const object::ObjectFile *Obj) { - const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj); - PrintMachHeader(file, !NonVerbose); -} - -void printMachOLoadCommands(const object::ObjectFile *Obj) { - const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj); - uint32_t filetype = 0; - uint32_t cputype = 0; - if (file->is64Bit()) { - MachO::mach_header_64 H_64; - H_64 = file->getHeader64(); - filetype = H_64.filetype; - cputype = H_64.cputype; - } else { - MachO::mach_header H; - H = file->getHeader(); - filetype = H.filetype; - cputype = H.cputype; - } - PrintLoadCommands(file, filetype, cputype, !NonVerbose); -} - -//===----------------------------------------------------------------------===// -// export trie dumping -//===----------------------------------------------------------------------===// - -void printMachOExportsTrie(const object::MachOObjectFile *Obj) { - uint64_t BaseSegmentAddress = 0; - for (const auto &Command : Obj->load_commands()) { - if (Command.C.cmd == MachO::LC_SEGMENT) { - MachO::segment_command Seg = Obj->getSegmentLoadCommand(Command); - if (Seg.fileoff == 0 && Seg.filesize != 0) { - BaseSegmentAddress = Seg.vmaddr; - break; - } - } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { - MachO::segment_command_64 Seg = Obj->getSegment64LoadCommand(Command); - if (Seg.fileoff == 0 && Seg.filesize != 0) { - BaseSegmentAddress = Seg.vmaddr; - break; - } - } - } - Error Err = Error::success(); - for (const object::ExportEntry &Entry : Obj->exports(Err)) { - uint64_t Flags = Entry.flags(); - bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT); - bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION); - bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == - MachO::EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL); - bool Abs = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == - MachO::EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE); - bool Resolver = (Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER); - if (ReExport) - outs() << "[re-export] "; - else - outs() << format("0x%08llX ", - Entry.address() + BaseSegmentAddress); - outs() << Entry.name(); - if (WeakDef || ThreadLocal || Resolver || Abs) { - bool NeedsComma = false; - outs() << " ["; - if (WeakDef) { - outs() << "weak_def"; - NeedsComma = true; - } - if (ThreadLocal) { - if (NeedsComma) - outs() << ", "; - outs() << "per-thread"; - NeedsComma = true; - } - if (Abs) { - if (NeedsComma) - outs() << ", "; - outs() << "absolute"; - NeedsComma = true; - } - if (Resolver) { - if (NeedsComma) - outs() << ", "; - outs() << format("resolver=0x%08llX", Entry.other()); - NeedsComma = true; - } - outs() << "]"; - } - if (ReExport) { - StringRef DylibName = "unknown"; - int Ordinal = Entry.other() - 1; - Obj->getLibraryShortNameByIndex(Ordinal, DylibName); - if (Entry.otherName().empty()) - outs() << " (from " << DylibName << ")"; - else - outs() << " (" << Entry.otherName() << " from " << DylibName << ")"; - } - outs() << "\n"; - } - if (Err) - report_error(std::move(Err), Obj->getFileName()); -} - -//===----------------------------------------------------------------------===// -// rebase table dumping -//===----------------------------------------------------------------------===// - -void printMachORebaseTable(object::MachOObjectFile *Obj) { - outs() << "segment section address type\n"; - Error Err = Error::success(); - for (const object::MachORebaseEntry &Entry : Obj->rebaseTable(Err)) { - StringRef SegmentName = Entry.segmentName(); - StringRef SectionName = Entry.sectionName(); - uint64_t Address = Entry.address(); - - // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer - outs() << format("%-8s %-18s 0x%08" PRIX64 " %s\n", - SegmentName.str().c_str(), SectionName.str().c_str(), - Address, Entry.typeName().str().c_str()); - } - if (Err) - report_error(std::move(Err), Obj->getFileName()); -} - -static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) { - StringRef DylibName; - switch (Ordinal) { - case MachO::BIND_SPECIAL_DYLIB_SELF: - return "this-image"; - case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE: - return "main-executable"; - case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP: - return "flat-namespace"; - default: - if (Ordinal > 0) { - std::error_code EC = - Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName); - if (EC) - return "<<bad library ordinal>>"; - return DylibName; - } - } - return "<<unknown special ordinal>>"; -} - -//===----------------------------------------------------------------------===// -// bind table dumping -//===----------------------------------------------------------------------===// - -void printMachOBindTable(object::MachOObjectFile *Obj) { - // Build table of sections so names can used in final output. - outs() << "segment section address type " - "addend dylib symbol\n"; - Error Err = Error::success(); - for (const object::MachOBindEntry &Entry : Obj->bindTable(Err)) { - StringRef SegmentName = Entry.segmentName(); - StringRef SectionName = Entry.sectionName(); - uint64_t Address = Entry.address(); - - // Table lines look like: - // __DATA __got 0x00012010 pointer 0 libSystem ___stack_chk_guard - StringRef Attr; - if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT) - Attr = " (weak_import)"; - outs() << left_justify(SegmentName, 8) << " " - << left_justify(SectionName, 18) << " " - << format_hex(Address, 10, true) << " " - << left_justify(Entry.typeName(), 8) << " " - << format_decimal(Entry.addend(), 8) << " " - << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " - << Entry.symbolName() << Attr << "\n"; - } - if (Err) - report_error(std::move(Err), Obj->getFileName()); -} - -//===----------------------------------------------------------------------===// -// lazy bind table dumping -//===----------------------------------------------------------------------===// - -void printMachOLazyBindTable(object::MachOObjectFile *Obj) { - outs() << "segment section address " - "dylib symbol\n"; - Error Err = Error::success(); - for (const object::MachOBindEntry &Entry : Obj->lazyBindTable(Err)) { - StringRef SegmentName = Entry.segmentName(); - StringRef SectionName = Entry.sectionName(); - uint64_t Address = Entry.address(); - - // Table lines look like: - // __DATA __got 0x00012010 libSystem ___stack_chk_guard - outs() << left_justify(SegmentName, 8) << " " - << left_justify(SectionName, 18) << " " - << format_hex(Address, 10, true) << " " - << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " - << Entry.symbolName() << "\n"; - } - if (Err) - report_error(std::move(Err), Obj->getFileName()); -} - -//===----------------------------------------------------------------------===// -// weak bind table dumping -//===----------------------------------------------------------------------===// - -void printMachOWeakBindTable(object::MachOObjectFile *Obj) { - outs() << "segment section address " - "type addend symbol\n"; - Error Err = Error::success(); - for (const object::MachOBindEntry &Entry : Obj->weakBindTable(Err)) { - // Strong symbols don't have a location to update. - if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) { - outs() << " strong " - << Entry.symbolName() << "\n"; - continue; - } - StringRef SegmentName = Entry.segmentName(); - StringRef SectionName = Entry.sectionName(); - uint64_t Address = Entry.address(); - - // Table lines look like: - // __DATA __data 0x00001000 pointer 0 _foo - outs() << left_justify(SegmentName, 8) << " " - << left_justify(SectionName, 18) << " " - << format_hex(Address, 10, true) << " " - << left_justify(Entry.typeName(), 8) << " " - << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName() - << "\n"; - } - if (Err) - report_error(std::move(Err), Obj->getFileName()); -} - -// get_dyld_bind_info_symbolname() is used for disassembly and passed an -// address, ReferenceValue, in the Mach-O file and looks in the dyld bind -// information for that address. If the address is found its binding symbol -// name is returned. If not nullptr is returned. -static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, - struct DisassembleInfo *info) { - if (info->bindtable == nullptr) { - info->bindtable = llvm::make_unique<SymbolAddressMap>(); - Error Err = Error::success(); - for (const object::MachOBindEntry &Entry : info->O->bindTable(Err)) { - uint64_t Address = Entry.address(); - StringRef name = Entry.symbolName(); - if (!name.empty()) - (*info->bindtable)[Address] = name; - } - if (Err) - report_error(std::move(Err), info->O->getFileName()); - } - auto name = info->bindtable->lookup(ReferenceValue); - return !name.empty() ? name.data() : nullptr; -} - -void printLazyBindTable(ObjectFile *o) { - outs() << "Lazy bind table:\n"; - if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) - printMachOLazyBindTable(MachO); - else - WithColor::error() - << "This operation is only currently supported " - "for Mach-O executable files.\n"; -} - -void printWeakBindTable(ObjectFile *o) { - outs() << "Weak bind table:\n"; - if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) - printMachOWeakBindTable(MachO); - else - WithColor::error() - << "This operation is only currently supported " - "for Mach-O executable files.\n"; -} - -void printExportsTrie(const ObjectFile *o) { - outs() << "Exports trie:\n"; - if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) - printMachOExportsTrie(MachO); - else - WithColor::error() - << "This operation is only currently supported " - "for Mach-O executable files.\n"; -} - -void printRebaseTable(ObjectFile *o) { - outs() << "Rebase table:\n"; - if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) - printMachORebaseTable(MachO); - else - WithColor::error() - << "This operation is only currently supported " - "for Mach-O executable files.\n"; -} - -void printBindTable(ObjectFile *o) { - outs() << "Bind table:\n"; - if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) - printMachOBindTable(MachO); - else - WithColor::error() - << "This operation is only currently supported " - "for Mach-O executable files.\n"; -} -} // namespace llvm |