#include "llvm-objdump.h"
#include "llvm-c/Disassembler.h"
+#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Config/config.h"
#include "llvm/DebugInfo/DIContext.h"
+#include "llvm/DebugInfo/DWARF/DWARFContext.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDisassembler.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/MachO.h"
#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
static cl::opt<bool> FullLeadingAddr("full-leading-addr",
cl::desc("Print full leading address"));
-static cl::opt<bool>
- PrintImmHex("print-imm-hex",
- cl::desc("Use hex format for immediate values"));
+static cl::opt<bool> NoLeadingAddr("no-leading-addr",
+ cl::desc("Print no leading address"));
+
+cl::opt<bool> llvm::UniversalHeaders("universal-headers",
+ cl::desc("Print Mach-O universal headers "
+ "(requires -macho)"));
+
+cl::opt<bool>
+ llvm::ArchiveHeaders("archive-headers",
+ cl::desc("Print archive headers for Mach-O archives "
+ "(requires -macho)"));
+
+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::opt<bool>
+ llvm::IndirectSymbols("indirect-symbols",
+ cl::desc("Print indirect symbol table for Mach-O "
+ "objects (requires -macho)"));
+
+cl::opt<bool>
+ llvm::DataInCode("data-in-code",
+ cl::desc("Print the data in code table for Mach-O objects "
+ "(requires -macho)"));
+
+cl::opt<bool>
+ llvm::LinkOptHints("link-opt-hints",
+ cl::desc("Print the linker optimization hints for "
+ "Mach-O objects (requires -macho)"));
+
+cl::opt<bool>
+ llvm::InfoPlist("info-plist",
+ cl::desc("Print the info plist section as strings for "
+ "Mach-O objects (requires -macho)"));
cl::opt<bool>
- llvm::UniversalHeaders("universal-headers",
- cl::desc("Print Mach-O universal headers"));
+ llvm::DylibsUsed("dylibs-used",
+ cl::desc("Print the shared libraries used for linked "
+ "Mach-O files (requires -macho)"));
+
+cl::opt<bool>
+ llvm::DylibId("dylib-id",
+ cl::desc("Print the shared library's id for the dylib Mach-O "
+ "file (requires -macho)"));
+
+cl::opt<bool>
+ llvm::NonVerbose("non-verbose",
+ cl::desc("Print the info for Mach-O objects in "
+ "non-verbose or numeric form (requires -macho)"));
+
+cl::opt<bool>
+ llvm::ObjcMetaData("objc-meta-data",
+ cl::desc("Print the Objective-C runtime meta data for "
+ "Mach-O files (requires -macho)"));
+
+cl::opt<std::string> llvm::DisSymName(
+ "dis-symname",
+ cl::desc("disassemble just this symbol's instructions (requires -macho"));
+
+static cl::opt<bool> NoSymbolicOperands(
+ "no-symbolic-operands",
+ cl::desc("do not symbolic operands when disassembling (requires -macho)"));
static cl::list<std::string>
ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
cl::ZeroOrMore);
+
bool ArchAll = false;
static std::string ThumbTripleName;
struct SymbolSorter {
bool operator()(const SymbolRef &A, const SymbolRef &B) {
- SymbolRef::Type AType, BType;
- A.getType(AType);
- B.getType(BType);
-
- uint64_t AAddr, BAddr;
- if (AType != SymbolRef::ST_Function)
- AAddr = 0;
- else
- A.getAddress(AAddr);
- if (BType != SymbolRef::ST_Function)
- BAddr = 0;
- else
- B.getAddress(BAddr);
+ uint64_t AAddr = (A.getType() != SymbolRef::ST_Function) ? 0 : A.getValue();
+ uint64_t BAddr = (B.getType() != SymbolRef::ST_Function) ? 0 : B.getValue();
return AAddr < BAddr;
}
};
return j.first >= i.first && j.first < i.first + Length;
}
-static uint64_t DumpDataInCode(const char *bytes, uint64_t Length,
+static uint64_t DumpDataInCode(const uint8_t *bytes, uint64_t Length,
unsigned short Kind) {
uint32_t Value, Size = 1;
case MachO::DICE_KIND_DATA:
if (Length >= 4) {
if (!NoShowRawInsn)
- DumpBytes(StringRef(bytes, 4));
+ 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(StringRef(bytes, 2));
+ dumpBytes(makeArrayRef(bytes, 2), outs());
Value = bytes[1] << 8 | bytes[0];
outs() << "\t.short " << Value;
Size = 2;
} else {
if (!NoShowRawInsn)
- DumpBytes(StringRef(bytes, 2));
+ dumpBytes(makeArrayRef(bytes, 2), outs());
Value = bytes[0];
outs() << "\t.byte " << Value;
Size = 1;
break;
case MachO::DICE_KIND_JUMP_TABLE8:
if (!NoShowRawInsn)
- DumpBytes(StringRef(bytes, 1));
+ 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(StringRef(bytes, 2));
+ dumpBytes(makeArrayRef(bytes, 2), outs());
Value = bytes[1] << 8 | bytes[0];
outs() << "\t.short " << format("%5u", Value & 0xffff)
<< "\t@ KIND_JUMP_TABLE16\n";
case MachO::DICE_KIND_JUMP_TABLE32:
case MachO::DICE_KIND_ABS_JUMP_TABLE32:
if (!NoShowRawInsn)
- DumpBytes(StringRef(bytes, 4));
+ 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)
return Size;
}
-static void getSectionsAndSymbols(const MachO::mach_header Header,
- MachOObjectFile *MachOObj,
+static void getSectionsAndSymbols(MachOObjectFile *MachOObj,
std::vector<SectionRef> &Sections,
std::vector<SymbolRef> &Symbols,
SmallVectorImpl<uint64_t> &FoundFns,
uint64_t &BaseSegmentAddress) {
for (const SymbolRef &Symbol : MachOObj->symbols()) {
- StringRef SymName;
- Symbol.getName(SymName);
- if (!SymName.startswith("ltmp"))
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ if (!SymName->startswith("ltmp"))
Symbols.push_back(Symbol);
}
Sections.push_back(Section);
}
- MachOObjectFile::LoadCommandInfo Command =
- MachOObj->getFirstLoadCommandInfo();
bool BaseSegmentAddressSet = false;
- for (unsigned i = 0;; ++i) {
+ 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.
BaseSegmentAddress = SLC.vmaddr;
}
}
-
- if (i == Header.ncmds - 1)
- break;
- else
- Command = MachOObj->getNextLoadCommandInfo(Command);
}
}
-// 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) {
- if (isa<MachOObjectFile>(O) && !ArchAll && ArchFlags.size() != 0) {
- MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
- bool ArchFound = false;
- MachO::mach_header H;
- MachO::mach_header_64 H_64;
- Triple T;
- if (MachO->is64Bit()) {
- H_64 = MachO->MachOObjectFile::getHeader64();
- T = MachOObjectFile::getArch(H_64.cputype, H_64.cpusubtype);
- } else {
- H = MachO->MachOObjectFile::getHeader();
- T = MachOObjectFile::getArch(H.cputype, H.cpusubtype);
+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, 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;
}
- unsigned i;
- for (i = 0; i < ArchFlags.size(); ++i) {
- if (ArchFlags[i] == T.getArchName())
- ArchFound = true;
- break;
+ if (indirect_symbol ==
+ (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) {
+ outs() << "LOCAL ABSOLUTE\n";
+ continue;
}
- if (!ArchFound) {
- errs() << "llvm-objdump: file: " + Filename + " does not contain "
- << "architecture: " + ArchFlags[i] + "\n";
- return false;
+ 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;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ outs() << *SymName;
+ } else {
+ outs() << "?";
+ }
}
+ outs() << "\n";
}
- return true;
}
-static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF);
-
-// 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 Filename, 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.
- if (Disassemble || PrivateHeaders || ExportsTrie || Rebase || Bind ||
- LazyBind || WeakBind) {
- outs() << Filename;
- if (!ArchiveMemberName.empty())
- outs() << '(' << ArchiveMemberName << ')';
- if (!ArchitectureName.empty())
- outs() << " (architecture " << ArchitectureName << ")";
- 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);
+ }
+ }
+ }
}
-
- if (Disassemble)
- DisassembleMachO(Filename, MachOOF);
- // TODO: These should/could be printed in Darwin's otool(1) or nm(1) style
- // for -macho. Or just used a new option that maps to the otool(1)
- // option like -r, -l, etc. Or just the normal llvm-objdump option
- // but now for this slice so that the -arch options can be used.
- // if (Relocations)
- // PrintRelocations(MachOOF);
- // if (SectionHeaders)
- // PrintSectionHeaders(MachOOF);
- // if (SectionContents)
- // PrintSectionContents(MachOOF);
- // if (SymbolTable)
- // PrintSymbolTable(MachOOF);
- // if (UnwindInfo)
- // PrintUnwindInfo(MachOOF);
- if (PrivateHeaders)
- printMachOFileHeader(MachOOF);
- if (ExportsTrie)
- printExportsTrie(MachOOF);
- if (Rebase)
- printRebaseTable(MachOOF);
- if (Bind)
- printBindTable(MachOOF);
- if (LazyBind)
- printLazyBindTable(MachOOF);
- if (WeakBind)
- printWeakBindTable(MachOOF);
}
-// 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";
+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";
+ }
}
-// 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";
+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 MachO::CPU_SUBTYPE_ARM_V6:
- outs() << " cputype CPU_TYPE_ARM\n";
- outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n";
+ case 2:
+ outs() << "AdrpLdr\n";
break;
- case MachO::CPU_SUBTYPE_ARM_V6M:
- outs() << " cputype CPU_TYPE_ARM\n";
- outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n";
+ case 3:
+ outs() << "AdrpAddLdr\n";
break;
- case MachO::CPU_SUBTYPE_ARM_V7:
- outs() << " cputype CPU_TYPE_ARM\n";
- outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n";
+ case 4:
+ outs() << "AdrpLdrGotLdr\n";
break;
- case MachO::CPU_SUBTYPE_ARM_V7EM:
- outs() << " cputype CPU_TYPE_ARM\n";
- outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n";
+ case 5:
+ outs() << "AdrpAddStr\n";
break;
- case MachO::CPU_SUBTYPE_ARM_V7K:
- outs() << " cputype CPU_TYPE_ARM\n";
- outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n";
+ case 6:
+ outs() << "AdrpLdrGotStr\n";
break;
- case MachO::CPU_SUBTYPE_ARM_V7M:
- outs() << " cputype CPU_TYPE_ARM\n";
- outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n";
+ case 7:
+ outs() << "AdrpAdd\n";
break;
- case MachO::CPU_SUBTYPE_ARM_V7S:
- outs() << " cputype CPU_TYPE_ARM\n";
- outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n";
+ case 8:
+ outs() << "AdrpLdrGot\n";
break;
default:
- printUnknownCPUType(cputype, cpusubtype);
+ outs() << "Unknown identifier value\n";
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;
- default:
- printUnknownCPUType(cputype, cpusubtype);
- 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;
}
- break;
- default:
- printUnknownCPUType(cputype, cpusubtype);
- break;
}
}
-static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB,
- bool verbose) {
- outs() << "Fat headers\n";
- if (verbose)
- outs() << "fat_magic FAT_MAGIC\n";
- else
- outs() << "fat_magic " << format("0x%" PRIx32, MachO::FAT_MAGIC) << "\n";
+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) << ")\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";
+ }
+ }
+ }
+}
- 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";
+typedef DenseMap<uint64_t, StringRef> SymbolAddressMap;
- 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;
+static void CreateSymbolAddressMap(MachOObjectFile *O,
+ SymbolAddressMap *AddrMap) {
+ // Create a map of symbol addresses to symbol names.
+ for (const SymbolRef &Symbol : O->symbols()) {
+ SymbolRef::Type ST = Symbol.getType();
+ if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
+ ST == SymbolRef::ST_Other) {
+ uint64_t Address = Symbol.getValue();
+ ErrorOr<StringRef> SymNameOrErr = Symbol.getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ report_fatal_error(EC.message());
+ StringRef SymName = *SymNameOrErr;
+ if (!SymName.startswith(".objc"))
+ (*AddrMap)[Address] = SymName;
}
- if (verbose) {
- outs() << OFA.getArchTypeName() << "\n";
- printCPUType(cputype, cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
- } else {
- outs() << i << "\n";
- outs() << " cputype " << cputype << "\n";
- outs() << " cpusubtype " << (cpusubtype & ~MachO::CPU_SUBTYPE_MASK)
- << "\n";
+ }
+}
+
+// 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) << " ";
}
- if (verbose &&
- (cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64)
- outs() << " capabilities CPU_SUBTYPE_LIB64\n";
+ 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() << " 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";
+ outs() << " (signaling Not-a-Number)\n";
}
}
-// 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 llvm::ParseInputMachO(StringRef Filename) {
- // 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;
+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 {
- if (!MachOObjectFile::isValidArch(ArchFlags[i])) {
- errs() << "llvm-objdump: Unknown architecture named '" + ArchFlags[i] +
- "'for the -arch option\n";
- return;
- }
+ 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);
}
- // Attempt to open the binary.
- ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename);
- if (std::error_code EC = BinaryOrErr.getError()) {
- errs() << "llvm-objdump: '" << Filename << "': " << EC.message() << ".\n";
- return;
+ // 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));
+ }
}
- Binary &Bin = *BinaryOrErr.get().getBinary();
+ array_pod_sort(Relocs.begin(), Relocs.end());
- if (Archive *A = dyn_cast<Archive>(&Bin)) {
- outs() << "Archive : " << Filename << "\n";
- for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
- I != E; ++I) {
- ErrorOr<std::unique_ptr<Binary>> ChildOrErr = I->getAsBinary();
- if (ChildOrErr.getError())
- continue;
- if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
- if (!checkMachOAndArchFlags(O, Filename))
- return;
- ProcessMachO(Filename, O, O->getFileName());
+ // 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 = std::find_if(
+ Relocs.begin(), Relocs.end(),
+ [&](const std::pair<uint64_t, SymbolRef> &P) { return P.first == i; });
+ if (Reloc != Relocs.end()) {
+ symbol_iterator RelocSym = Reloc->second;
+ ErrorOr<StringRef> SymName = RelocSym->getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ outs() << "external relocation entry for symbol:" << *SymName << "\n";
+ continue;
+ }
+
+ // For local references see what the section the literal pointer points to.
+ auto Sect = std::find_if(LiteralSections.begin(), LiteralSections.end(),
+ [&](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;
+ Sect->getContents(BytesStr);
+ 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;
+ }
}
- return;
}
- if (UniversalHeaders) {
- if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin))
- printMachOUniversalHeaders(UB, true);
+}
+
+static void DumpInitTermPointerSection(MachOObjectFile *O, 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);
+ for (uint32_t i = 0; i < sect_size; i += stride) {
+ const char *SymbolName = nullptr;
+ 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);
+ if (verbose)
+ SymbolName = GuessSymbolName(pointer_value, AddrMap);
+ } 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);
+ if (verbose)
+ SymbolName = GuessSymbolName(pointer_value, AddrMap);
+ }
+ if (SymbolName)
+ outs() << " " << SymbolName;
+ outs() << "\n";
}
- if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) {
- // If we have a list of architecture flags specified dump only those.
- if (!ArchAll && ArchFlags.size() != 0) {
- // 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->getArchTypeName()) {
- ArchFound = true;
- ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
- I->getAsObjectFile();
- std::string ArchitectureName = "";
- if (ArchFlags.size() > 1)
- ArchitectureName = I->getArchTypeName();
- if (ObjOrErr) {
- ObjectFile &O = *ObjOrErr.get();
- if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
- ProcessMachO(Filename, MachOOF, "", ArchitectureName);
- } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
- I->getAsArchive()) {
- std::unique_ptr<Archive> &A = *AOrErr;
- outs() << "Archive : " << Filename;
- if (!ArchitectureName.empty())
- outs() << " (architecture " << ArchitectureName << ")";
- outs() << "\n";
- for (Archive::child_iterator AI = A->child_begin(),
- AE = A->child_end();
- AI != AE; ++AI) {
- ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
- if (ChildOrErr.getError())
- continue;
- if (MachOObjectFile *O =
- dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
- ProcessMachO(Filename, O, O->getFileName(), ArchitectureName);
- }
- }
- }
- }
- if (!ArchFound) {
- errs() << "llvm-objdump: file: " + Filename + " does not contain "
- << "architecture: " + ArchFlags[i] + "\n";
- return;
- }
+}
+
+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) << " ";
}
- return;
+ outs() << "\n";
}
- // No architecture flags were specified so if this contains a slice that
- // matches the host architecture dump only that.
- if (!ArchAll) {
- StringRef HostArchName = MachOObjectFile::getHostArch().getArchName();
- for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
- E = UB->end_objects();
- I != E; ++I) {
- if (HostArchName == I->getArchTypeName()) {
- ErrorOr<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 (ErrorOr<std::unique_ptr<Archive>> AOrErr =
- I->getAsArchive()) {
- std::unique_ptr<Archive> &A = *AOrErr;
- outs() << "Archive : " << Filename << "\n";
- for (Archive::child_iterator AI = A->child_begin(),
- AE = A->child_end();
- AI != AE; ++AI) {
- ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
- if (ChildOrErr.getError())
- continue;
- if (MachOObjectFile *O =
- dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
- ProcessMachO(Filename, O, O->getFileName());
- }
+ } 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, sect) << "\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);
+ outs() << format("%02" PRIx32, (uint32_t)byte_word) << " ";
}
- return;
}
}
+ outs() << "\n";
}
- // 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) {
- ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
- std::string ArchitectureName = "";
- if (moreThanOneArch)
- ArchitectureName = I->getArchTypeName();
- if (ObjOrErr) {
- ObjectFile &Obj = *ObjOrErr.get();
- if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj))
- ProcessMachO(Filename, MachOOF, "", ArchitectureName);
- } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr = I->getAsArchive()) {
- std::unique_ptr<Archive> &A = *AOrErr;
- outs() << "Archive : " << Filename;
- if (!ArchitectureName.empty())
- outs() << " (architecture " << ArchitectureName << ")";
- outs() << "\n";
- for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
- AI != AE; ++AI) {
- ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
- if (ChildOrErr.getError())
- continue;
- if (MachOObjectFile *O =
- dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
- if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O))
- ProcessMachO(Filename, MachOOF, MachOOF->getFileName(),
- ArchitectureName);
- }
- }
- }
- }
- return;
}
- if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) {
- if (!checkMachOAndArchFlags(O, Filename))
- return;
- if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) {
- ProcessMachO(Filename, MachOOF);
- } else
- errs() << "llvm-objdump: '" << Filename << "': "
- << "Object is not a Mach-O file type.\n";
- } else
- errs() << "llvm-objdump: '" << Filename << "': "
- << "Unrecognized file type.\n";
}
-typedef DenseMap<uint64_t, StringRef> SymbolAddressMap;
-typedef std::pair<uint64_t, const char *> BindInfoEntry;
-typedef std::vector<BindInfoEntry> BindTable;
-typedef BindTable::iterator bind_table_iterator;
-
-// The block of info used by the Symbolizer call backs.
-struct DisassembleInfo {
- bool verbose;
- MachOObjectFile *O;
- SectionRef S;
- SymbolAddressMap *AddrMap;
- std::vector<SectionRef> *Sections;
- const char *class_name;
- const char *selector_name;
- char *method;
- char *demangled_name;
- uint64_t adrp_addr;
- uint32_t adrp_inst;
- BindTable *bindtable;
-};
+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);
-// GuessSymbolName is passed the address of what might be a symbol and a
-// pointer to the DisassembleInfo struct. 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,
- struct DisassembleInfo *info) {
- const char *SymbolName = nullptr;
- // A DenseMap can't lookup up some values.
- if (value != 0xffffffffffffffffULL && value != 0xfffffffffffffffeULL) {
- StringRef name = info->AddrMap->lookup(value);
- if (!name.empty())
- SymbolName = name.data();
- }
- return SymbolName;
-}
+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.size()) {
+ 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;
-// 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.
-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;
+ } else {
+ const MachO::section Sec = O->getSection(Ref);
+ section_flags = Sec.flags;
+ }
+ uint32_t section_type = section_flags & MachO::SECTION_TYPE;
- // 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;
+ StringRef BytesStr;
+ Section.getContents(BytesStr);
+ const char *sect = reinterpret_cast<const char *>(BytesStr.data());
+ uint32_t sect_size = BytesStr.size();
+ uint64_t sect_addr = Section.getAddress();
- // 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 == false)
- return 0;
+ outs() << "Contents of (" << SegName << "," << SectName
+ << ") section\n";
- unsigned int Arch = info->O->getArch();
- if (Arch == Triple::x86) {
- if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
- return 0;
- // First 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(RelocOffset);
- 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;
+ if (verbose) {
+ if ((section_flags & MachO::S_ATTR_PURE_INSTRUCTIONS) ||
+ (section_flags & MachO::S_ATTR_SOME_INSTRUCTIONS)) {
+ DisassembleMachO(Filename, O, SegName, SectName);
+ continue;
}
- } else {
- isExtern = info->O->getPlainRelocationExternal(RE);
- if (isExtern) {
- symbol_iterator RelocSym = Reloc.getSymbol();
- Symbol = *RelocSym;
+ if (SegName == "__TEXT" && SectName == "__info_plist") {
+ outs() << sect;
+ continue;
}
+ if (SegName == "__OBJC" && SectName == "__protocol") {
+ DumpProtocolSection(O, sect, sect_size, sect_addr);
+ continue;
+ }
+ 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, 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);
}
- reloc_found = true;
- break;
}
}
- if (reloc_found && isExtern) {
- StringRef SymName;
- Symbol.getName(SymName);
- const char *name = SymName.data();
- op_info->AddSymbol.Present = 1;
- op_info->AddSymbol.Name = name;
- // 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;
+ }
+}
+
+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") {
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+ StringRef BytesStr;
+ Section.getContents(BytesStr);
+ const char *sect = reinterpret_cast<const char *>(BytesStr.data());
+ outs() << sect;
+ return;
}
- if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF ||
- r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) {
- const char *add = GuessSymbolName(r_value, info);
- const char *sub = GuessSymbolName(pair_r_value, info);
- 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;
+ }
+}
+
+// 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) {
+ if (isa<MachOObjectFile>(O) && !ArchAll && ArchFlags.size() != 0) {
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
+ bool ArchFound = false;
+ MachO::mach_header H;
+ MachO::mach_header_64 H_64;
+ Triple T;
+ if (MachO->is64Bit()) {
+ H_64 = MachO->MachOObjectFile::getHeader64();
+ T = MachOObjectFile::getArch(H_64.cputype, H_64.cpusubtype);
+ } else {
+ H = MachO->MachOObjectFile::getHeader();
+ T = MachOObjectFile::getArch(H.cputype, H.cpusubtype);
}
- // TODO:
- // Second 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;
- } else if (Arch == Triple::x86_64) {
- if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
- return 0;
- // First 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(RelocOffset);
- 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;
- }
+ unsigned i;
+ for (i = 0; i < ArchFlags.size(); ++i) {
+ if (ArchFlags[i] == T.getArchName())
+ ArchFound = 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;
- StringRef SymName;
- Symbol.getName(SymName);
- const char *name = SymName.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;
- StringRef SymNameNext;
- Symbol.getName(SymNameNext);
- name = SymNameNext.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;
+ if (!ArchFound) {
+ errs() << "llvm-objdump: file: " + Filename + " does not contain "
+ << "architecture: " + ArchFlags[i] + "\n";
+ return false;
}
- // TODO:
- // Second 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;
- } else if (Arch == Triple::arm) {
- if (Offset != 0 || (Size != 4 && Size != 2))
- return 0;
- // First 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, r_length, other_half;
- for (const RelocationRef &Reloc : info->S.relocations()) {
- uint64_t RelocOffset;
- Reloc.getOffset(RelocOffset);
- if (RelocOffset == sect_offset) {
- 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);
- }
- reloc_found = true;
- break;
- }
- }
- if (reloc_found && isExtern) {
- StringRef SymName;
- Symbol.getName(SymName);
- const char *name = SymName.data();
- op_info->AddSymbol.Present = 1;
- op_info->AddSymbol.Name = name;
- if (value != 0) {
- 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;
- }
- } else {
- 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 possiblity add an annotation for a symbol stub.
- if (reloc_found && isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 ||
- r_type == MachO::ARM_THUMB_RELOC_BR22))
- return 0;
+ }
+ return true;
+}
- uint32_t offset = 0;
- if (reloc_found) {
- 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;
- }
- }
+static void printObjcMetaData(MachOObjectFile *O, bool verbose);
- if (reloc_found && 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);
- const char *sub = GuessSymbolName(pair_r_value, info);
- 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;
- }
+// 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 Filename, 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 || PrivateHeaders || ExportsTrie || Rebase || Bind ||
+ LazyBind || WeakBind || IndirectSymbols || DataInCode || LinkOptHints ||
+ DylibsUsed || DylibId || ObjcMetaData || (FilterSections.size() != 0)) {
+ outs() << Filename;
+ if (!ArchiveMemberName.empty())
+ outs() << '(' << ArchiveMemberName << ')';
+ if (!ArchitectureName.empty())
+ outs() << " (architecture " << ArchitectureName << ")";
+ outs() << ":\n";
+ }
- if (reloc_found == false)
- return 0;
+ if (Disassemble)
+ DisassembleMachO(Filename, MachOOF, "__TEXT", "__text");
+ if (IndirectSymbols)
+ PrintIndirectSymbols(MachOOF, !NonVerbose);
+ if (DataInCode)
+ PrintDataInCodeTable(MachOOF, !NonVerbose);
+ if (LinkOptHints)
+ PrintLinkOptHints(MachOOF);
+ if (Relocations)
+ PrintRelocations(MachOOF);
+ if (SectionHeaders)
+ PrintSectionHeaders(MachOOF);
+ if (SectionContents)
+ PrintSectionContents(MachOOF);
+ if (FilterSections.size() != 0)
+ DumpSectionContents(Filename, MachOOF, !NonVerbose);
+ if (InfoPlist)
+ DumpInfoPlistSectionContents(Filename, MachOOF);
+ if (DylibsUsed)
+ PrintDylibs(MachOOF, false);
+ if (DylibId)
+ PrintDylibs(MachOOF, true);
+ if (SymbolTable)
+ PrintSymbolTable(MachOOF);
+ 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);
+}
- op_info->AddSymbol.Present = 1;
- op_info->Value = offset;
- if (reloc_found) {
- 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;
- }
+// 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;
}
- const char *add = GuessSymbolName(value, info);
- if (add != nullptr) {
- op_info->AddSymbol.Name = add;
- return 1;
+ 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;
}
- op_info->AddSymbol.Value = value;
- return 1;
- } else if (Arch == Triple::aarch64) {
- if (Offset != 0 || Size != 4)
- return 0;
- // First 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;
- uint32_t r_type = 0;
- for (const RelocationRef &Reloc : info->S.relocations()) {
- uint64_t RelocOffset;
- Reloc.getOffset(RelocOffset);
- if (RelocOffset == sect_offset) {
- Rel = Reloc.getRawDataRefImpl();
- RE = info->O->getRelocation(Rel);
- 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.
- isExtern = info->O->getPlainRelocationExternal(RE);
- if (isExtern) {
- symbol_iterator RelocSym = Reloc.getSymbol();
- Symbol = *RelocSym;
- }
- reloc_found = true;
- 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;
}
- if (reloc_found && isExtern) {
- StringRef SymName;
- Symbol.getName(SymName);
- const char *name = SymName.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;
+ 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;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
}
- return 0;
- } else {
- return 0;
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
}
}
-// 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.
-const char *GuessCstringPointer(uint64_t ReferenceValue,
- struct DisassembleInfo *info) {
- uint32_t LoadCommandCount = info->O->getHeader().ncmds;
- MachOObjectFile::LoadCommandInfo Load = info->O->getFirstLoadCommandInfo();
- for (unsigned I = 0;; ++I) {
- 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;
+static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB,
+ bool verbose) {
+ outs() << "Fat headers\n";
+ if (verbose)
+ outs() << "fat_magic FAT_MAGIC\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.getArchTypeName() << "\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(const Archive::Child &C, bool verbose,
+ bool print_offset) {
+ if (print_offset)
+ outs() << C.getChildOffset() << "\t";
+ sys::fs::perms Mode = C.getAccessMode();
+ 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);
+ }
+
+ unsigned UID = C.getUID();
+ outs() << format("%3d/", UID);
+ unsigned GID = C.getGID();
+ outs() << format("%-3d ", GID);
+ ErrorOr<uint64_t> Size = C.getRawSize();
+ if (std::error_code EC = Size.getError())
+ report_fatal_error(EC.message());
+ outs() << format("%5" PRId64, Size.get()) << " ";
+
+ StringRef RawLastModified = C.getRawLastModified();
+ if (verbose) {
+ unsigned Seconds;
+ if (RawLastModified.getAsInteger(10, Seconds))
+ outs() << "(date: \"%s\" contains non-decimal chars) " << RawLastModified;
+ 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) {
+ ErrorOr<StringRef> NameOrErr = C.getName();
+ if (NameOrErr.getError()) {
+ StringRef RawName = C.getRawName();
+ outs() << RawName << "\n";
+ } else {
+ StringRef Name = NameOrErr.get();
+ outs() << Name << "\n";
+ }
+ } else {
+ StringRef RawName = C.getRawName();
+ outs() << RawName << "\n";
+ }
+}
+
+static void printArchiveHeaders(Archive *A, bool verbose, bool print_offset) {
+ for (Archive::child_iterator I = A->child_begin(false), E = A->child_end();
+ I != E; ++I) {
+ if (std::error_code EC = I->getError())
+ report_fatal_error(EC.message());
+ const Archive::Child &C = **I;
+ printArchiveChild(C, verbose, print_offset);
+ }
+}
+
+// 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 llvm::ParseInputMachO(StringRef Filename) {
+ // 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])) {
+ errs() << "llvm-objdump: Unknown architecture named '" + ArchFlags[i] +
+ "'for the -arch option\n";
+ return;
+ }
+ }
+ }
+
+ // Attempt to open the binary.
+ ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename);
+ if (std::error_code EC = BinaryOrErr.getError())
+ report_error(Filename, EC);
+ Binary &Bin = *BinaryOrErr.get().getBinary();
+
+ if (Archive *A = dyn_cast<Archive>(&Bin)) {
+ outs() << "Archive : " << Filename << "\n";
+ if (ArchiveHeaders)
+ printArchiveHeaders(A, !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
+ I != E; ++I) {
+ if (std::error_code EC = I->getError())
+ report_error(Filename, EC);
+ auto &C = I->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
+ if (!checkMachOAndArchFlags(O, Filename))
+ return;
+ ProcessMachO(Filename, O, O->getFileName());
+ }
+ }
+ return;
+ }
+ if (UniversalHeaders) {
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin))
+ printMachOUniversalHeaders(UB, !NonVerbose);
+ }
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) {
+ // If we have a list of architecture flags specified dump only those.
+ if (!ArchAll && ArchFlags.size() != 0) {
+ // 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->getArchTypeName()) {
+ ArchFound = true;
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
+ I->getAsObjectFile();
+ std::string ArchitectureName = "";
+ if (ArchFlags.size() > 1)
+ ArchitectureName = I->getArchTypeName();
+ if (ObjOrErr) {
+ ObjectFile &O = *ObjOrErr.get();
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
+ ProcessMachO(Filename, MachOOF, "", ArchitectureName);
+ } else if (ErrorOr<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(A.get(), !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ if (std::error_code EC = AI->getError())
+ report_error(Filename, EC);
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O =
+ dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
+ ProcessMachO(Filename, O, O->getFileName(), ArchitectureName);
+ }
+ }
}
}
+ if (!ArchFound) {
+ errs() << "llvm-objdump: file: " + Filename + " does not contain "
+ << "architecture: " + ArchFlags[i] + "\n";
+ return;
+ }
}
- } 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;
+ }
+ // 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->getArchTypeName()) {
+ ErrorOr<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 (ErrorOr<std::unique_ptr<Archive>> AOrErr =
+ I->getAsArchive()) {
+ std::unique_ptr<Archive> &A = *AOrErr;
+ outs() << "Archive : " << Filename << "\n";
+ if (ArchiveHeaders)
+ printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ if (std::error_code EC = AI->getError())
+ report_error(Filename, EC);
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O =
+ dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
+ ProcessMachO(Filename, O, O->getFileName());
+ }
}
+ return;
}
}
}
- if (I == LoadCommandCount - 1)
- break;
- else
- Load = info->O->getNextLoadCommandInfo(Load);
+ // 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) {
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
+ std::string ArchitectureName = "";
+ if (moreThanOneArch)
+ ArchitectureName = I->getArchTypeName();
+ if (ObjOrErr) {
+ ObjectFile &Obj = *ObjOrErr.get();
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj))
+ ProcessMachO(Filename, MachOOF, "", ArchitectureName);
+ } else if (ErrorOr<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(A.get(), !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
+ AI != AE; ++AI) {
+ if (std::error_code EC = AI->getError())
+ report_error(Filename, EC);
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O =
+ dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O))
+ ProcessMachO(Filename, MachOOF, MachOOF->getFileName(),
+ ArchitectureName);
+ }
+ }
+ }
+ }
+ return;
+ }
+ if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) {
+ if (!checkMachOAndArchFlags(O, Filename))
+ return;
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) {
+ ProcessMachO(Filename, MachOOF);
+ } else
+ 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");
+}
+
+typedef std::pair<uint64_t, const char *> BindInfoEntry;
+typedef std::vector<BindInfoEntry> BindTable;
+typedef BindTable::iterator bind_table_iterator;
+
+// The block of info used by the Symbolizer call backs.
+struct DisassembleInfo {
+ bool verbose;
+ MachOObjectFile *O;
+ SectionRef S;
+ SymbolAddressMap *AddrMap;
+ std::vector<SectionRef> *Sections;
+ const char *class_name;
+ const char *selector_name;
+ char *method;
+ char *demangled_name;
+ uint64_t adrp_addr;
+ uint32_t adrp_inst;
+ BindTable *bindtable;
+ uint32_t depth;
+};
+
+// 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) {
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ op_info->AddSymbol.Present = 1;
+ op_info->AddSymbol.Name = name;
+ // 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;
+ 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;
+ 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;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->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;
+ ErrorOr<StringRef> SymNameNext = Symbol.getName();
+ if (std::error_code EC = SymNameNext.getError())
+ report_fatal_error(EC.message());
+ name = SymNameNext->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 =
+ std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
+ [&](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) {
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->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 possiblity 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 =
+ std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
+ [&](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;
+ ErrorOr<StringRef> SymName = Reloc->getSymbol()->getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->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);
+ SymbolRef Symbol = *Sym;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ return name;
+ }
+ }
+ }
+ }
+ } 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);
+ SymbolRef Symbol = *Sym;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ return name;
+ }
+ }
+ }
+ }
+ }
+ }
+ 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->method != nullptr)
+ free(info->method);
+ if (info->class_name != nullptr) {
+ info->method = (char *)malloc(5 + strlen(info->class_name) +
+ strlen(info->selector_name));
+ if (info->method != nullptr) {
+ strcpy(info->method, "+[");
+ strcat(info->method, info->class_name);
+ strcat(info->method, " ");
+ strcat(info->method, info->selector_name);
+ strcat(info->method, "]");
+ *ReferenceName = info->method;
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
+ }
+ } else {
+ info->method = (char *)malloc(9 + strlen(info->selector_name));
+ if (info->method != nullptr) {
+ if (Arch == Triple::x86_64)
+ strcpy(info->method, "-[%rdi ");
+ else if (Arch == Triple::aarch64)
+ strcpy(info->method, "-[x0 ");
+ else
+ strcpy(info->method, "-[r? ");
+ strcat(info->method, info->selector_name);
+ strcat(info->method, "]");
+ *ReferenceName = info->method;
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
+ }
+ }
+ info->class_name = nullptr;
+ }
+ } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) {
+ if (info->selector_name != nullptr) {
+ if (info->method != nullptr)
+ free(info->method);
+ info->method = (char *)malloc(17 + strlen(info->selector_name));
+ if (info->method != nullptr) {
+ if (Arch == Triple::x86_64)
+ strcpy(info->method, "-[[%rdi super] ");
+ else if (Arch == Triple::aarch64)
+ strcpy(info->method, "-[[x0 super] ");
+ else
+ strcpy(info->method, "-[[r? super] ");
+ strcat(info->method, info->selector_name);
+ strcat(info->method, "]");
+ *ReferenceName = info->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;
+ ((*(info->Sections))[SectIdx]).getContents(SectContents);
+ 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();
+ ErrorOr<StringRef> NameOrError = Symbol.getName();
+ if (std::error_code EC = NameOrError.getError())
+ report_fatal_error(EC.message());
+ StringRef Name = *NameOrError;
+ 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/Support/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)
+
+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;
+ S.getContents(BytesStr);
+ 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;
+ S.getContents(BytesStr);
+ 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;
+ memset(&cro, '\0', sizeof(struct class_ro64_t));
+ if (left < sizeof(struct class_ro64_t)) {
+ memcpy(&cro, r, left);
+ outs() << " (class_ro_t entends past the end of the section)\n";
+ } else
+ 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;
+ memset(&c, '\0', sizeof(struct class64_t));
+ if (left < sizeof(struct class64_t)) {
+ memcpy(&c, r, left);
+ outs() << " (class_t entends past the end of the section)\n";
+ } else
+ 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;
+ 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";
}
- return nullptr;
+
+ 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";
}
-// 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,
+static void print_objc_objc_category_t(struct objc_category_t *objc_category,
struct DisassembleInfo *info) {
- uint32_t LoadCommandCount = info->O->getHeader().ncmds;
- MachOObjectFile::LoadCommandInfo Load = info->O->getFirstLoadCommandInfo();
- MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand();
- MachO::symtab_command Symtab = info->O->getSymtabLoadCommand();
- for (unsigned I = 0;; ++I) {
- 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);
- SymbolRef Symbol = *Sym;
- StringRef SymName;
- Symbol.getName(SymName);
- const char *name = SymName.data();
- return name;
- }
- }
- }
- }
- } 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);
- SymbolRef Symbol = *Sym;
- StringRef SymName;
- Symbol.getName(SymName);
- const char *name = SymName.data();
- return name;
- }
- }
- }
- }
- }
- if (I == LoadCommandCount - 1)
- break;
+ 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
- Load = info->O->getNextLoadCommandInfo(Load);
+ outs() << " (not in an __OBJC section)";
}
- return nullptr;
-}
+ outs() << "\n";
-// 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->method != nullptr)
- free(info->method);
- if (info->class_name != nullptr) {
- info->method = (char *)malloc(5 + strlen(info->class_name) +
- strlen(info->selector_name));
- if (info->method != nullptr) {
- strcpy(info->method, "+[");
- strcat(info->method, info->class_name);
- strcat(info->method, " ");
- strcat(info->method, info->selector_name);
- strcat(info->method, "]");
- *ReferenceName = info->method;
- *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
- }
- } else {
- info->method = (char *)malloc(9 + strlen(info->selector_name));
- if (info->method != nullptr) {
- if (Arch == Triple::x86_64)
- strcpy(info->method, "-[%rdi ");
- else if (Arch == Triple::aarch64)
- strcpy(info->method, "-[x0 ");
- else
- strcpy(info->method, "-[r? ");
- strcat(info->method, info->selector_name);
- strcat(info->method, "]");
- *ReferenceName = info->method;
- *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
- }
- }
- info->class_name = nullptr;
- }
- } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) {
- if (info->selector_name != nullptr) {
- if (info->method != nullptr)
- free(info->method);
- info->method = (char *)malloc(17 + strlen(info->selector_name));
- if (info->method != nullptr) {
- if (Arch == Triple::x86_64)
- strcpy(info->method, "-[[%rdi super] ");
- else if (Arch == Triple::aarch64)
- strcpy(info->method, "-[[x0 super] ");
- else
- strcpy(info->method, "-[[r? super] ");
- strcat(info->method, info->selector_name);
- strcat(info->method, "]");
- *ReferenceName = info->method;
- *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
- }
- info->class_name = nullptr;
- }
- }
+ 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";
}
-// 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;
- uint32_t LoadCommandCount = info->O->getHeader().ncmds;
- MachOObjectFile::LoadCommandInfo Load = info->O->getFirstLoadCommandInfo();
- for (unsigned I = 0;; ++I) {
- 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.
- if (I == LoadCommandCount - 1)
- break;
+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
- Load = info->O->getNextLoadCommandInfo(Load);
+ 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);
}
- 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.
-const char *get_pointer_64(uint64_t Address, uint32_t &offset, uint32_t &left,
- SectionRef &S, DisassembleInfo *info) {
+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;
- 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 (Address >= SectAddress && Address < SectAddress + SectSize) {
- S = (*(info->Sections))[SectIdx];
- offset = Address - SectAddress;
- left = SectSize - offset;
- StringRef SectContents;
- ((*(info->Sections))[SectIdx]).getContents(SectContents);
- return SectContents.data() + offset;
- }
+ 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);
}
- return nullptr;
}
-// 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.
-const char *get_symbol_64(uint32_t sect_offset, SectionRef S,
- DisassembleInfo *info, uint64_t &n_value) {
- n_value = 0;
- if (info->verbose == false)
- return nullptr;
+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;
- // 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(RelocOffset);
- 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 (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";
+ 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
+ outs() << " unknown future Swift version (" << swift_version << ")";
}
- // 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) {
- Symbol.getAddress(n_value);
- StringRef name;
- Symbol.getName(name);
- if (!name.empty()) {
- SymbolName = name.data();
- return SymbolName;
- }
+ 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;
+
+ 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
+ outs() << " unknown future Swift version (" << swift_version << ")";
}
+ outs() << "\n";
+}
- // 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.
+static void print_image_info(SectionRef S, struct DisassembleInfo *info) {
+ uint32_t left, offset, p;
+ struct imageInfo_t o;
+ const char *r;
- // TODO: 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.
- //
- // NOTE: need add passing the ReferenceValue to this routine. Then that code
- // would simply be this:
- // SymbolName = GuessSymbolName(ReferenceValue, info);
+ 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";
+}
- return SymbolName;
+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;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = verbose;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ info.depth = 0;
+ SectionRef CL = get_section(O, "__OBJC2", "__class_list");
+ if (CL == SectionRef())
+ CL = get_section(O, "__DATA", "__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");
+ 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");
+ 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");
+ 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");
+ 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");
+ 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");
+ info.S = II;
+ print_image_info64(II, &info);
+
+ if (info.bindtable != nullptr)
+ delete info.bindtable;
}
-// 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/Support/MachO.h .
+static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) {
+ SymbolAddressMap AddrMap;
+ if (verbose)
+ CreateSymbolAddressMap(O, &AddrMap);
-// 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
-};
+ std::vector<SectionRef> Sections;
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
-// 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 DisassembleInfo info;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = verbose;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ const SectionRef CL = get_section(O, "__OBJC2", "__class_list");
+ if (CL != SectionRef()) {
+ info.S = CL;
+ walk_pointer_list_32("class", CL, O, &info, print_class32_t);
+ } else {
+ const SectionRef CL = get_section(O, "__DATA", "__objc_classlist");
+ info.S = CL;
+ walk_pointer_list_32("class", CL, O, &info, print_class32_t);
+ }
-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)
-};
+ const SectionRef CR = get_section(O, "__OBJC2", "__class_refs");
+ if (CR != SectionRef()) {
+ info.S = CR;
+ walk_pointer_list_32("class refs", CR, O, &info, nullptr);
+ } else {
+ const SectionRef CR = get_section(O, "__DATA", "__objc_classrefs");
+ info.S = CR;
+ walk_pointer_list_32("class refs", CR, O, &info, nullptr);
+ }
-inline void swapStruct(struct cfstring64_t &cfs) {
- sys::swapByteOrder(cfs.isa);
- sys::swapByteOrder(cfs.flags);
- sys::swapByteOrder(cfs.characters);
- sys::swapByteOrder(cfs.length);
-}
+ const SectionRef SR = get_section(O, "__OBJC2", "__super_refs");
+ if (SR != SectionRef()) {
+ info.S = SR;
+ walk_pointer_list_32("super refs", SR, O, &info, nullptr);
+ } else {
+ const SectionRef SR = get_section(O, "__DATA", "__objc_superrefs");
+ info.S = SR;
+ walk_pointer_list_32("super refs", SR, O, &info, nullptr);
+ }
-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);
-}
+ const SectionRef CA = get_section(O, "__OBJC2", "__category_list");
+ if (CA != SectionRef()) {
+ info.S = CA;
+ walk_pointer_list_32("category", CA, O, &info, print_category32_t);
+ } else {
+ const SectionRef CA = get_section(O, "__DATA", "__objc_catlist");
+ info.S = CA;
+ walk_pointer_list_32("category", CA, O, &info, print_category32_t);
+ }
-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);
+ const SectionRef PL = get_section(O, "__OBJC2", "__protocol_list");
+ if (PL != SectionRef()) {
+ info.S = PL;
+ walk_pointer_list_32("protocol", PL, O, &info, nullptr);
+ } else {
+ const SectionRef PL = get_section(O, "__DATA", "__objc_protolist");
+ info.S = PL;
+ walk_pointer_list_32("protocol", PL, O, &info, nullptr);
+ }
+
+ const SectionRef MR = get_section(O, "__OBJC2", "__message_refs");
+ if (MR != SectionRef()) {
+ info.S = MR;
+ print_message_refs32(MR, &info);
+ } else {
+ const SectionRef MR = get_section(O, "__DATA", "__objc_msgrefs");
+ info.S = MR;
+ print_message_refs32(MR, &info);
+ }
+
+ const SectionRef II = get_section(O, "__OBJC2", "__image_info");
+ if (II != SectionRef()) {
+ info.S = II;
+ print_image_info32(II, &info);
+ } else {
+ const SectionRef II = get_section(O, "__DATA", "__objc_imageinfo");
+ info.S = II;
+ print_image_info32(II, &info);
+ }
}
-static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
- struct DisassembleInfo *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);
-// 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.
-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;
+ std::vector<SectionRef> Sections;
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
- // 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;
+ struct DisassembleInfo info;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = verbose;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ 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
- return nullptr;
+ 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);
- // 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;
+ return true;
}
-// get_objc2_64bit_cfstring_name is used for disassembly and is passed a
-// pointer to a cfstring and returns its name or nullptr.
-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;
+static void DumpProtocolSection(MachOObjectFile *O, const char *sect,
+ uint32_t size, uint32_t addr) {
+ SymbolAddressMap AddrMap;
+ CreateSymbolAddressMap(O, &AddrMap);
- 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);
+ std::vector<SectionRef> Sections;
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
- return name;
+ struct DisassembleInfo info;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = true;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ 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";
+ }
}
-// 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
-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 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
//
// If there is no item in the Mach-O file for the address passed in as
// ReferenceValue nullptr is returned and ReferenceType is unchanged.
-const char *GuessLiteralPointer(uint64_t ReferenceValue, uint64_t ReferencePC,
- uint64_t *ReferenceType,
- struct DisassembleInfo *info) {
+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.
- 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(RelocOffset);
- 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;
+ 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;
}
- 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) {
- Symbol.getAddress(ReferenceValue);
+ // 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();
+ }
}
}
}
bool classref, selref, msgref, cfstring;
uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref,
selref, msgref, cfstring);
- if (classref == true && pointer_value == 0) {
+ 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".
}
}
- if (classref == true) {
+ if (classref) {
*ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
const char *name =
get_objc2_64bit_class_name(pointer_value, ReferenceValue, info);
return name;
}
- if (cfstring == true) {
+ if (cfstring) {
*ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref;
const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info);
return name;
}
- if (selref == true && pointer_value == 0)
+ if (selref && pointer_value == 0)
pointer_value = get_objc2_64bit_selref(ReferenceValue, info);
if (pointer_value != 0)
const char *name = GuessCstringPointer(ReferenceValue, info);
if (name) {
- if (pointer_value != 0 && selref == true) {
+ if (pointer_value != 0 && selref) {
*ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref;
info->selector_name = name;
- } else if (pointer_value != 0 && msgref == true) {
+ } else if (pointer_value != 0 && msgref) {
info->class_name = nullptr;
*ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref;
info->selector_name = name;
// 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.
-const char *SymbolizerSymbolLookUp(void *DisInfo, uint64_t ReferenceValue,
- uint64_t *ReferenceType,
- uint64_t ReferencePC,
- const char **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 == false) {
+ if (!info->verbose) {
*ReferenceName = nullptr;
*ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
return nullptr;
}
- const char *SymbolName = GuessSymbolName(ReferenceValue, info);
+ const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap);
if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch) {
*ReferenceName = GuessIndirectSymbol(ReferenceValue, info);
formatted_raw_ostream &FormattedOS,
const MCAsmInfo &MAI) {
// Flush the stream before taking its content.
- CommentStream.flush();
StringRef Comments = CommentsToEmit.str();
// Get the default information for printing a comment.
const char *CommentBegin = MAI.getCommentString();
// Tell the comment stream that the vector changed underneath it.
CommentsToEmit.clear();
- CommentStream.resync();
}
-static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF) {
+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 (RelInfo) {
Symbolizer.reset(TheTarget->createMCSymbolizer(
TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
- &SymbolizerInfo, &Ctx, RelInfo.release()));
+ &SymbolizerInfo, &Ctx, std::move(RelInfo)));
DisAsm->setSymbolizer(std::move(Symbolizer));
}
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
- AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI, *STI));
+ Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI));
// Set the display preference for hex vs. decimal immediates.
IP->setPrintImmHex(PrintImmHex);
// Comment stream and backing vector.
if (ThumbRelInfo) {
ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer(
ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
- &ThumbSymbolizerInfo, PtrThumbCtx, ThumbRelInfo.release()));
+ &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo)));
ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer));
}
int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect();
ThumbIP.reset(ThumbTarget->createMCInstPrinter(
- ThumbAsmPrinterVariant, *ThumbAsmInfo, *ThumbInstrInfo, *ThumbMRI,
- *ThumbSTI));
+ Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo,
+ *ThumbInstrInfo, *ThumbMRI));
// Set the display preference for hex vs. decimal immediates.
ThumbIP->setPrintImmHex(PrintImmHex);
}
SmallVector<uint64_t, 8> FoundFns;
uint64_t BaseSegmentAddress;
- getSectionsAndSymbols(Header, MachOOF, Sections, Symbols, FoundFns,
+ getSectionsAndSymbols(MachOOF, Sections, Symbols, FoundFns,
BaseSegmentAddress);
// Sort the symbols by address, just in case they didn't come in that way.
}
// Setup the DIContext
- diContext.reset(DIContext::getDWARFContext(*DbgObj));
+ diContext.reset(new DWARFContextInMemory(*DbgObj));
}
- // TODO: For now this only disassembles the (__TEXT,__text) section (see the
- // checks in the code below at the top of this loop). It should allow a
- // darwin otool(1) like -s option to disassemble any named segment & section
- // that is marked as containing instructions with the attributes
- // S_ATTR_PURE_INSTRUCTIONS or S_ATTR_SOME_INSTRUCTIONS in the flags field of
- // the section structure.
- outs() << "(__TEXT,__text) section\n";
+ if (FilterSections.size() == 0)
+ outs() << "(" << DisSegName << "," << DisSectName << ") section\n";
for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) {
-
- bool SectIsText = Sections[SectIdx].isText();
- if (SectIsText == false)
- continue;
-
StringRef SectName;
- if (Sections[SectIdx].getName(SectName) || SectName != "__text")
- continue; // Skip non-text sections
+ if (Sections[SectIdx].getName(SectName) || SectName != DisSectName)
+ continue;
DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR);
- if (SegmentName != "__TEXT")
+ if (SegmentName != DisSegName)
continue;
StringRef BytesStr;
bool symbolTableWorked = false;
- // Parse relocations.
- std::vector<std::pair<uint64_t, SymbolRef>> Relocs;
- for (const RelocationRef &Reloc : Sections[SectIdx].relocations()) {
- uint64_t RelocOffset;
- Reloc.getOffset(RelocOffset);
- uint64_t SectionAddress = Sections[SectIdx].getAddress();
- RelocOffset -= SectionAddress;
-
- symbol_iterator RelocSym = Reloc.getSymbol();
-
- Relocs.push_back(std::make_pair(RelocOffset, *RelocSym));
- }
- array_pod_sort(Relocs.begin(), Relocs.end());
-
// 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;
- Symbol.getType(ST);
+ SymbolRef::Type ST = Symbol.getType();
if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
ST == SymbolRef::ST_Other) {
- uint64_t Address;
- Symbol.getAddress(Address);
- StringRef SymName;
- Symbol.getName(SymName);
+ uint64_t Address = Symbol.getValue();
+ ErrorOr<StringRef> SymNameOrErr = Symbol.getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ report_fatal_error(EC.message());
+ StringRef SymName = *SymNameOrErr;
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 = true;
+ SymbolizerInfo.verbose = !NoSymbolicOperands;
SymbolizerInfo.O = MachOOF;
SymbolizerInfo.S = Sections[SectIdx];
SymbolizerInfo.AddrMap = &AddrMap;
SymbolizerInfo.adrp_addr = 0;
SymbolizerInfo.adrp_inst = 0;
// Same for the ThumbSymbolizer
- ThumbSymbolizerInfo.verbose = true;
+ ThumbSymbolizerInfo.verbose = !NoSymbolicOperands;
ThumbSymbolizerInfo.O = MachOOF;
ThumbSymbolizerInfo.S = Sections[SectIdx];
ThumbSymbolizerInfo.AddrMap = &AddrMap;
// Disassemble symbol by symbol.
for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) {
- StringRef SymName;
- Symbols[SymIdx].getName(SymName);
+ ErrorOr<StringRef> SymNameOrErr = Symbols[SymIdx].getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ report_fatal_error(EC.message());
+ StringRef SymName = *SymNameOrErr;
- SymbolRef::Type ST;
- Symbols[SymIdx].getType(ST);
- if (ST != SymbolRef::ST_Function)
+ SymbolRef::Type ST = Symbols[SymIdx].getType();
+ if (ST != SymbolRef::ST_Function && ST != SymbolRef::ST_Data)
continue;
// Make sure the symbol is defined in this section.
if (!containsSym)
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 Start = 0;
+ uint64_t Start = Symbols[SymIdx].getValue();
uint64_t SectionAddress = Sections[SectIdx].getAddress();
- Symbols[SymIdx].getAddress(Start);
Start -= SectionAddress;
// Stop disassembling either at the beginning of the next symbol or at
uint64_t NextSym = 0;
uint64_t NextSymIdx = SymIdx + 1;
while (Symbols.size() > NextSymIdx) {
- SymbolRef::Type NextSymType;
- Symbols[NextSymIdx].getType(NextSymType);
+ SymbolRef::Type NextSymType = Symbols[NextSymIdx].getType();
if (NextSymType == SymbolRef::ST_Function) {
containsNextSym =
Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]);
- Symbols[NextSymIdx].getAddress(NextSym);
+ NextSym = Symbols[NextSymIdx].getValue();
NextSym -= SectionAddress;
break;
}
MCInst Inst;
uint64_t PC = SectAddress + Index;
- if (FullLeadingAddr) {
- if (MachOOF->is64Bit())
- outs() << format("%016" PRIx64, PC);
- else
- outs() << format("%08" PRIx64, PC);
- } else {
- outs() << format("%8" PRIx64 ":", PC);
+ 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)
outs() << "\t";
DTI->second.getLength(Length);
uint16_t Kind;
DTI->second.getKind(Kind);
- Size = DumpDataInCode(reinterpret_cast<const char *>(Bytes.data()) +
- Index,
- Length, Kind);
+ Size = DumpDataInCode(Bytes.data() + Index, Length, Kind);
if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) &&
(PC == (DTI->first + Length - 1)) && (Length & 1))
Size++;
DebugOut, Annotations);
if (gotInst) {
if (!NoShowRawInsn) {
- DumpBytes(StringRef(
- reinterpret_cast<const char *>(Bytes.data()) + Index, Size));
+ dumpBytes(makeArrayRef(Bytes.data() + Index, Size), outs());
}
formatted_raw_ostream FormattedOS(outs());
- Annotations.flush();
StringRef AnnotationsStr = Annotations.str();
if (isThumb)
- ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr);
+ ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr, *ThumbSTI);
else
- IP->printInst(&Inst, FormattedOS, AnnotationsStr);
+ IP->printInst(&Inst, FormattedOS, AnnotationsStr, *STI);
emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo);
// Print debug info.
uint64_t PC = SectAddress + Index;
if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC,
DebugOut, nulls())) {
- if (FullLeadingAddr) {
- if (MachOOF->is64Bit())
- outs() << format("%016" PRIx64, PC);
- else
- outs() << format("%08" PRIx64, PC);
- } else {
- outs() << format("%8" PRIx64 ":", PC);
+ 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) {
outs() << "\t";
- DumpBytes(
- StringRef(reinterpret_cast<const char *>(Bytes.data()) + Index,
- InstSize));
+ dumpBytes(makeArrayRef(Bytes.data() + Index, InstSize), outs());
}
- IP->printInst(&Inst, outs(), "");
+ IP->printInst(&Inst, outs(), "", *STI);
outs() << "\n";
} else {
unsigned int Arch = MachOOF->getArch();
const RelocationRef &Reloc, uint64_t Addr,
StringRef &Name, uint64_t &Addend) {
if (Reloc.getSymbol() != Obj->symbol_end()) {
- Reloc.getSymbol()->getName(Name);
+ ErrorOr<StringRef> NameOrErr = Reloc.getSymbol()->getName();
+ if (std::error_code EC = NameOrErr.getError())
+ report_fatal_error(EC.message());
+ Name = *NameOrErr;
Addend = Addr;
return;
}
auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl());
- SectionRef RelocSection = Obj->getRelocationSection(RE);
+ SectionRef RelocSection = Obj->getAnyRelocationSection(RE);
uint64_t SectionAddr = RelocSection.getAddress();
// Go back one so that SymbolAddress <= Addr.
--Sym;
- section_iterator SymSection = Obj->section_end();
- Sym->second.getSection(SymSection);
+ section_iterator SymSection = *Sym->second.getSection();
if (RelocSection == *SymSection) {
// There's a valid symbol in the same section before this reference.
- Sym->second.getName(Name);
+ ErrorOr<StringRef> NameOrErr = Sym->second.getName();
+ if (std::error_code EC = NameOrErr.getError())
+ report_fatal_error(EC.message());
+ Name = *NameOrErr;
Addend = Addr - Sym->first;
return;
}
StringRef Name;
uint64_t Addend;
- if (!Reloc.getObjectFile())
+ if (!Reloc.getObject())
return;
findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend);
// 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(RelocAddress);
+ uint64_t RelocAddress = Reloc.getOffset();
uint32_t EntryIdx = RelocAddress / EntrySize;
uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize;
<< format("0x%08" PRIx32, Entry.CompactEncoding) << '\n';
// 4. The personality function, if present.
- if (Entry.PersonalityReloc.getObjectFile()) {
+ if (Entry.PersonalityReloc.getObject()) {
outs() << " personality function: "
<< format("0x%" PRIx64, Entry.PersonalityAddr) << ' ';
printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc,
}
// 5. This entry's language-specific data area.
- if (Entry.LSDAReloc.getObjectFile()) {
+ if (Entry.LSDAReloc.getObject()) {
outs() << " LSDA: " << format("0x%" PRIx64,
Entry.LSDAAddr) << ' ';
printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr);
}
}
+static unsigned getSizeForEncoding(bool is64Bit,
+ unsigned symbolEncoding) {
+ unsigned format = symbolEncoding & 0x0f;
+ switch (format) {
+ default: llvm_unreachable("Unknown Encoding");
+ case dwarf::DW_EH_PE_absptr:
+ case dwarf::DW_EH_PE_signed:
+ return is64Bit ? 8 : 4;
+ case dwarf::DW_EH_PE_udata2:
+ case dwarf::DW_EH_PE_sdata2:
+ return 2;
+ case dwarf::DW_EH_PE_udata4:
+ case dwarf::DW_EH_PE_sdata4:
+ return 4;
+ case dwarf::DW_EH_PE_udata8:
+ case dwarf::DW_EH_PE_sdata8:
+ return 8;
+ }
+}
+
+static uint64_t readPointer(const char *&Pos, bool is64Bit, unsigned Encoding) {
+ switch (getSizeForEncoding(is64Bit, Encoding)) {
+ case 2:
+ return readNext<uint16_t>(Pos);
+ break;
+ case 4:
+ return readNext<uint32_t>(Pos);
+ break;
+ case 8:
+ return readNext<uint64_t>(Pos);
+ break;
+ default:
+ llvm_unreachable("Illegal data size");
+ }
+}
+
+static void printMachOEHFrameSection(const MachOObjectFile *Obj,
+ std::map<uint64_t, SymbolRef> &Symbols,
+ const SectionRef &EHFrame) {
+ if (!Obj->isLittleEndian()) {
+ outs() << "warning: cannot handle big endian __eh_frame section\n";
+ return;
+ }
+
+ bool is64Bit = Obj->is64Bit();
+
+ outs() << "Contents of __eh_frame section:\n";
+
+ StringRef Contents;
+ EHFrame.getContents(Contents);
+
+ /// A few fields of the CIE are used when decoding the FDE's. This struct
+ /// will cache those fields we need so that we don't have to decode it
+ /// repeatedly for each FDE that references it.
+ struct DecodedCIE {
+ Optional<uint32_t> FDEPointerEncoding;
+ Optional<uint32_t> LSDAPointerEncoding;
+ bool hasAugmentationLength;
+ };
+
+ // Map from the start offset of the CIE to the cached data for that CIE.
+ DenseMap<uint64_t, DecodedCIE> CachedCIEs;
+
+ for (const char *Pos = Contents.data(), *End = Contents.end(); Pos != End; ) {
+
+ const char *EntryStartPos = Pos;
+
+ uint64_t Length = readNext<uint32_t>(Pos);
+ if (Length == 0xffffffff)
+ Length = readNext<uint64_t>(Pos);
+
+ // Save the Pos so that we can check the length we encoded against what we
+ // end up decoding.
+ const char *PosAfterLength = Pos;
+ const char *EntryEndPos = PosAfterLength + Length;
+
+ assert(EntryEndPos <= End &&
+ "__eh_frame entry length exceeds section size");
+
+ uint32_t ID = readNext<uint32_t>(Pos);
+ if (ID == 0) {
+ // This is a CIE.
+
+ uint32_t Version = readNext<uint8_t>(Pos);
+
+ // Parse a null terminated augmentation string
+ SmallString<8> AugmentationString;
+ for (uint8_t Char = readNext<uint8_t>(Pos); Char;
+ Char = readNext<uint8_t>(Pos))
+ AugmentationString.push_back(Char);
+
+ // Optionally parse the EH data if the augmentation string says it's there.
+ Optional<uint64_t> EHData;
+ if (StringRef(AugmentationString).count("eh"))
+ EHData = is64Bit ? readNext<uint64_t>(Pos) : readNext<uint32_t>(Pos);
+
+ unsigned ULEBByteCount;
+ uint64_t CodeAlignmentFactor = decodeULEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ int64_t DataAlignmentFactor = decodeSLEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ uint32_t ReturnAddressRegister = readNext<uint8_t>(Pos);
+
+ Optional<uint64_t> AugmentationLength;
+ Optional<uint32_t> LSDAPointerEncoding;
+ Optional<uint32_t> PersonalityEncoding;
+ Optional<uint64_t> Personality;
+ Optional<uint32_t> FDEPointerEncoding;
+ if (!AugmentationString.empty() && AugmentationString.front() == 'z') {
+ AugmentationLength = decodeULEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ // Walk the augmentation string to get all the augmentation data.
+ for (unsigned i = 1, e = AugmentationString.size(); i != e; ++i) {
+ char Char = AugmentationString[i];
+ switch (Char) {
+ case 'e':
+ assert((i + 1) != e && AugmentationString[i + 1] == 'h' &&
+ "Expected 'eh' in augmentation string");
+ break;
+ case 'L':
+ assert(!LSDAPointerEncoding && "Duplicate LSDA encoding");
+ LSDAPointerEncoding = readNext<uint8_t>(Pos);
+ break;
+ case 'P': {
+ assert(!Personality && "Duplicate personality");
+ PersonalityEncoding = readNext<uint8_t>(Pos);
+ Personality = readPointer(Pos, is64Bit, *PersonalityEncoding);
+ break;
+ }
+ case 'R':
+ assert(!FDEPointerEncoding && "Duplicate FDE encoding");
+ FDEPointerEncoding = readNext<uint8_t>(Pos);
+ break;
+ case 'z':
+ llvm_unreachable("'z' must be first in the augmentation string");
+ }
+ }
+ }
+
+ outs() << "CIE:\n";
+ outs() << " Length: " << Length << "\n";
+ outs() << " CIE ID: " << ID << "\n";
+ outs() << " Version: " << Version << "\n";
+ outs() << " Augmentation String: " << AugmentationString << "\n";
+ if (EHData)
+ outs() << " EHData: " << *EHData << "\n";
+ outs() << " Code Alignment Factor: " << CodeAlignmentFactor << "\n";
+ outs() << " Data Alignment Factor: " << DataAlignmentFactor << "\n";
+ outs() << " Return Address Register: " << ReturnAddressRegister << "\n";
+ if (AugmentationLength) {
+ outs() << " Augmentation Data Length: " << *AugmentationLength << "\n";
+ if (LSDAPointerEncoding) {
+ outs() << " FDE LSDA Pointer Encoding: "
+ << *LSDAPointerEncoding << "\n";
+ }
+ if (Personality) {
+ outs() << " Personality Encoding: " << *PersonalityEncoding << "\n";
+ outs() << " Personality: " << *Personality << "\n";
+ }
+ if (FDEPointerEncoding) {
+ outs() << " FDE Address Pointer Encoding: "
+ << *FDEPointerEncoding << "\n";
+ }
+ }
+ // FIXME: Handle instructions.
+ // For now just emit some bytes
+ outs() << " Instructions:\n ";
+ dumpBytes(makeArrayRef((const uint8_t*)Pos, (const uint8_t*)EntryEndPos),
+ outs());
+ outs() << "\n";
+ Pos = EntryEndPos;
+
+ // Cache this entry.
+ uint64_t Offset = EntryStartPos - Contents.data();
+ CachedCIEs[Offset] = { FDEPointerEncoding, LSDAPointerEncoding,
+ AugmentationLength.hasValue() };
+ continue;
+ }
+
+ // This is an FDE.
+ // The CIE pointer for an FDE is the same location as the ID which we
+ // already read.
+ uint32_t CIEPointer = ID;
+
+ const char *CIEStart = PosAfterLength - CIEPointer;
+ assert(CIEStart >= Contents.data() &&
+ "FDE points to CIE before the __eh_frame start");
+
+ uint64_t CIEOffset = CIEStart - Contents.data();
+ auto CIEIt = CachedCIEs.find(CIEOffset);
+ if (CIEIt == CachedCIEs.end())
+ llvm_unreachable("Couldn't find CIE at offset in to __eh_frame section");
+
+ const DecodedCIE &CIE = CIEIt->getSecond();
+ assert(CIE.FDEPointerEncoding &&
+ "FDE references CIE which did not set pointer encoding");
+
+ uint64_t PCPointerSize = getSizeForEncoding(is64Bit,
+ *CIE.FDEPointerEncoding);
+
+ uint64_t PCBegin = readPointer(Pos, is64Bit, *CIE.FDEPointerEncoding);
+ uint64_t PCRange = readPointer(Pos, is64Bit, *CIE.FDEPointerEncoding);
+
+ Optional<uint64_t> AugmentationLength;
+ uint32_t LSDAPointerSize;
+ Optional<uint64_t> LSDAPointer;
+ if (CIE.hasAugmentationLength) {
+ unsigned ULEBByteCount;
+ AugmentationLength = decodeULEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ // Decode the LSDA if the CIE augmentation string said we should.
+ if (CIE.LSDAPointerEncoding) {
+ LSDAPointerSize = getSizeForEncoding(is64Bit, *CIE.LSDAPointerEncoding);
+ LSDAPointer = readPointer(Pos, is64Bit, *CIE.LSDAPointerEncoding);
+ }
+ }
+
+ outs() << "FDE:\n";
+ outs() << " Length: " << Length << "\n";
+ outs() << " CIE Offset: " << CIEOffset << "\n";
+
+ if (PCPointerSize == 8) {
+ outs() << format(" PC Begin: %016" PRIx64, PCBegin) << "\n";
+ outs() << format(" PC Range: %016" PRIx64, PCRange) << "\n";
+ } else {
+ outs() << format(" PC Begin: %08" PRIx64, PCBegin) << "\n";
+ outs() << format(" PC Range: %08" PRIx64, PCRange) << "\n";
+ }
+ if (AugmentationLength) {
+ outs() << " Augmentation Data Length: " << *AugmentationLength << "\n";
+ if (LSDAPointer) {
+ if (LSDAPointerSize == 8)
+ outs() << format(" LSDA Pointer: %016\n" PRIx64, *LSDAPointer);
+ else
+ outs() << format(" LSDA Pointer: %08\n" PRIx64, *LSDAPointer);
+ }
+ }
+
+ // FIXME: Handle instructions.
+ // For now just emit some bytes
+ outs() << " Instructions:\n ";
+ dumpBytes(makeArrayRef((const uint8_t*)Pos, (const uint8_t*)EntryEndPos),
+ outs());
+ outs() << "\n";
+ Pos = EntryEndPos;
+ }
+}
+
void llvm::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.
- section_iterator Section = Obj->section_end();
- SymRef.getSection(Section);
+ section_iterator Section = *SymRef.getSection();
if (Section == Obj->section_end())
continue;
- uint64_t Addr;
- SymRef.getAddress(Addr);
+ uint64_t Addr = SymRef.getValue();
Symbols.insert(std::make_pair(Addr, SymRef));
}
else if (SectName == "__unwind_info")
printMachOUnwindInfoSection(Obj, Symbols, Section);
else if (SectName == "__eh_frame")
- outs() << "llvm-objdump: warning: unhandled __eh_frame section\n";
+ printMachOEHFrameSection(Obj, Symbols, Section);
}
}
MachO::VM_PROT_EXECUTE)) != 0)
outs() << " maxprot ?" << format("0x%08" PRIx32, maxprot) << "\n";
else {
- if (maxprot & MachO::VM_PROT_READ)
- outs() << " maxprot r";
- else
- outs() << " maxprot -";
- if (maxprot & MachO::VM_PROT_WRITE)
- outs() << "w";
- else
- outs() << "-";
- if (maxprot & MachO::VM_PROT_EXECUTE)
- outs() << "x\n";
- else
- outs() << "-\n";
+ 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 {
- if (initprot & MachO::VM_PROT_READ)
- outs() << " initprot r";
- else
- outs() << " initprot -";
- if (initprot & MachO::VM_PROT_WRITE)
- outs() << "w";
- else
- outs() << "-";
- if (initprot & MachO::VM_PROT_EXECUTE)
- outs() << "x\n";
- else
- outs() << "-\n";
+ 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";
else
outs() << "\n";
outs() << " uuid ";
- outs() << format("%02" PRIX32, uuid.uuid[0]);
- outs() << format("%02" PRIX32, uuid.uuid[1]);
- outs() << format("%02" PRIX32, uuid.uuid[2]);
- outs() << format("%02" PRIX32, uuid.uuid[3]);
- outs() << "-";
- outs() << format("%02" PRIX32, uuid.uuid[4]);
- outs() << format("%02" PRIX32, uuid.uuid[5]);
- outs() << "-";
- outs() << format("%02" PRIX32, uuid.uuid[6]);
- outs() << format("%02" PRIX32, uuid.uuid[7]);
- outs() << "-";
- outs() << format("%02" PRIX32, uuid.uuid[8]);
- outs() << format("%02" PRIX32, uuid.uuid[9]);
- outs() << "-";
- outs() << format("%02" PRIX32, uuid.uuid[10]);
- outs() << format("%02" PRIX32, uuid.uuid[11]);
- outs() << format("%02" PRIX32, uuid.uuid[12]);
- outs() << format("%02" PRIX32, uuid.uuid[13]);
- outs() << format("%02" PRIX32, uuid.uuid[14]);
- outs() << format("%02" PRIX32, uuid.uuid[15]);
+ 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 PrintVersionMinLoadCommand(MachO::version_min_command vd) {
- if (vd.cmd == MachO::LC_VERSION_MIN_MACOSX)
- outs() << " cmd LC_VERSION_MIN_MACOSX\n";
- else if (vd.cmd == MachO::LC_VERSION_MIN_IPHONEOS)
- outs() << " cmd LC_VERSION_MIN_IPHONEOS\n";
- else
- outs() << " cmd " << vd.cmd << " (?)\n";
+ 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 " << ((vd.version >> 16) & 0xffff) << "."
- << ((vd.version >> 8) & 0xff);
- if ((vd.version & 0xff) != 0)
- outs() << "." << (vd.version & 0xff);
+ 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 " << ((vd.sdk >> 16) & 0xffff) << "."
- << ((vd.sdk >> 8) & 0xff);
+ outs() << " sdk "
+ << MachOObjectFile::getVersionMinMajor(vd, true) << "."
+ << MachOObjectFile::getVersionMinMinor(vd, true);
}
- if ((vd.sdk & 0xff) != 0)
- outs() << "." << (vd.sdk & 0xff);
+ Update = MachOObjectFile::getVersionMinUpdate(vd, true);
+ if (Update != 0)
+ outs() << "." << Update;
outs() << "\n";
}
outs() << "\n";
}
-static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t ncmds,
- uint32_t filetype, uint32_t cputype,
- bool verbose) {
- if (ncmds == 0)
- return;
+static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype,
+ uint32_t cputype, bool verbose) {
StringRef Buf = Obj->getData();
- MachOObjectFile::LoadCommandInfo Command = Obj->getFirstLoadCommandInfo();
- for (unsigned i = 0;; ++i) {
- outs() << "Load command " << i << "\n";
+ 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;
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_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_SOURCE_VERSION) {
// TODO: get and print the raw bytes of the load command.
}
// TODO: print all the other kinds of load commands.
- if (i == ncmds - 1)
- break;
- else
- Command = Obj->getNextLoadCommandInfo(Command);
}
}
-static void getAndPrintMachHeader(const MachOObjectFile *Obj, uint32_t &ncmds,
- uint32_t &filetype, uint32_t &cputype,
- bool verbose) {
+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);
- ncmds = H_64.ncmds;
- filetype = H_64.filetype;
- cputype = H_64.cputype;
} else {
MachO::mach_header H;
H = Obj->getHeader();
PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds,
H.sizeofcmds, H.flags, verbose);
- ncmds = H.ncmds;
- filetype = H.filetype;
- cputype = H.cputype;
}
}
void llvm::printMachOFileHeader(const object::ObjectFile *Obj) {
const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
- uint32_t ncmds = 0;
+ PrintMachHeader(file, !NonVerbose);
+}
+
+void llvm::printMachOLoadCommands(const object::ObjectFile *Obj) {
+ const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
uint32_t filetype = 0;
uint32_t cputype = 0;
- getAndPrintMachHeader(file, ncmds, filetype, cputype, true);
- PrintLoadCommands(file, ncmds, filetype, cputype, true);
+ 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);
}
//===----------------------------------------------------------------------===//
StringRef segmentName(uint32_t SegIndex);
StringRef sectionName(uint32_t SegIndex, uint64_t SegOffset);
uint64_t address(uint32_t SegIndex, uint64_t SegOffset);
+ bool isValidSegIndexAndOffset(uint32_t SegIndex, uint64_t SegOffset);
private:
struct SectionInfo {
uint64_t CurSegAddress;
for (const SectionRef &Section : Obj->sections()) {
SectionInfo Info;
- if (error(Section.getName(Info.SectionName)))
- return;
+ error(Section.getName(Info.SectionName));
Info.Address = Section.getAddress();
Info.Size = Section.getSize();
Info.SegmentName =
llvm_unreachable("invalid segIndex");
}
+bool SegInfo::isValidSegIndexAndOffset(uint32_t SegIndex,
+ uint64_t OffsetInSeg) {
+ for (const SectionInfo &SI : Sections) {
+ if (SI.SegmentIndex != SegIndex)
+ continue;
+ if (SI.OffsetInSegment > OffsetInSeg)
+ continue;
+ if (OffsetInSeg >= (SI.OffsetInSegment + SI.Size))
+ continue;
+ return true;
+ }
+ return false;
+}
+
const SegInfo::SectionInfo &SegInfo::findSection(uint32_t SegIndex,
uint64_t OffsetInSeg) {
for (const SectionInfo &SI : Sections) {
for (const llvm::object::MachOBindEntry &Entry : info->O->bindTable()) {
uint32_t SegIndex = Entry.segmentIndex();
uint64_t OffsetInSeg = Entry.segmentOffset();
+ if (!sectionTable.isValidSegIndexAndOffset(SegIndex, OffsetInSeg))
+ continue;
uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
const char *SymbolName = nullptr;
StringRef name = Entry.symbolName();
projects / oota-llvm.git / blobdiff