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authorDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
commit0b57cec536236d46e3dba9bd041533462f33dbb7 (patch)
tree56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/tools/llvm-objdump/MachODump.cpp
parent718ef55ec7785aae63f98f8ca05dc07ed399c16d (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.cpp10398
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