index bfff4456b012506bea98375c2cf37a639e8ceb5d..d6e8e0a01a8697feaed01162a078046cf2c738bd 100644 (file)
//===----------------------------------------------------------------------===//
#include "llvm-objdump.h"
+#include "llvm-c/Disassembler.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Triple.h"
+#include "llvm/Config/config.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstPrinter.h"
-#include "llvm/MC/MCInstrAnalysis.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Object/MachO.h"
+#include "llvm/Object/MachOUniversal.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/Format.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/MachO.h"
#include "llvm/Support/MemoryBuffer.h"
#include <algorithm>
#include <cstring>
#include <system_error>
+
+#if HAVE_CXXABI_H
+#include <cxxabi.h>
+#endif
+
using namespace llvm;
using namespace object;
static cl::opt<bool>
- UseDbg("g", cl::desc("Print line information from debug info if available"));
+ UseDbg("g",
+ cl::desc("Print line information from debug info if available"));
+
+static cl::opt<std::string> DSYMFile("dsym",
+ cl::desc("Use .dSYM file for debug info"));
+
+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<std::string>
- DSYMFile("dsym", cl::desc("Use .dSYM file for debug info"));
+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>
+ llvm::IndirectSymbols("indirect-symbols",
+ cl::desc("Print indirect symbol table for Mach-O "
+ "objects (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;
typedef std::vector<DiceTableEntry> DiceTable;
typedef DiceTable::iterator dice_table_iterator;
-static bool
-compareDiceTableEntries(const DiceTableEntry i,
- const DiceTableEntry j) {
- return i.first == j.first;
+// This is used to search for a data in code table entry for the PC being
+// disassembled. The j parameter has the PC in j.first. A single data in code
+// table entry can cover many bytes for each of its Kind's. So if the offset,
+// aka the i.first value, of the data in code table entry plus its Length
+// covers the PC being searched for this will return true. If not it will
+// return false.
+static bool compareDiceTableEntries(const DiceTableEntry &i,
+ const DiceTableEntry &j) {
+ uint16_t Length;
+ i.second.getLength(Length);
+
+ return j.first >= i.first && j.first < i.first + Length;
}
-static void DumpDataInCode(const char *bytes, uint64_t Size,
- unsigned short Kind) {
- uint64_t Value;
+static uint64_t DumpDataInCode(const char *bytes, uint64_t Length,
+ unsigned short Kind) {
+ uint32_t Value, Size = 1;
switch (Kind) {
+ default:
case MachO::DICE_KIND_DATA:
- switch (Size) {
- case 4:
- Value = bytes[3] << 24 |
- bytes[2] << 16 |
- bytes[1] << 8 |
- bytes[0];
+ if (Length >= 4) {
+ if (!NoShowRawInsn)
+ DumpBytes(StringRef(bytes, 4));
+ Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
outs() << "\t.long " << Value;
- break;
- case 2:
- Value = bytes[1] << 8 |
- bytes[0];
+ Size = 4;
+ } else if (Length >= 2) {
+ if (!NoShowRawInsn)
+ DumpBytes(StringRef(bytes, 2));
+ Value = bytes[1] << 8 | bytes[0];
outs() << "\t.short " << Value;
- break;
- case 1:
+ Size = 2;
+ } else {
+ if (!NoShowRawInsn)
+ DumpBytes(StringRef(bytes, 2));
Value = bytes[0];
outs() << "\t.byte " << Value;
- break;
+ Size = 1;
}
- outs() << "\t@ KIND_DATA\n";
+ if (Kind == MachO::DICE_KIND_DATA)
+ outs() << "\t@ KIND_DATA\n";
+ else
+ outs() << "\t@ data in code kind = " << Kind << "\n";
break;
case MachO::DICE_KIND_JUMP_TABLE8:
+ if (!NoShowRawInsn)
+ DumpBytes(StringRef(bytes, 1));
Value = bytes[0];
- outs() << "\t.byte " << Value << "\t@ KIND_JUMP_TABLE8";
+ outs() << "\t.byte " << format("%3u", Value) << "\t@ KIND_JUMP_TABLE8\n";
+ Size = 1;
break;
case MachO::DICE_KIND_JUMP_TABLE16:
- Value = bytes[1] << 8 |
- bytes[0];
- outs() << "\t.short " << Value << "\t@ KIND_JUMP_TABLE16";
+ if (!NoShowRawInsn)
+ DumpBytes(StringRef(bytes, 2));
+ Value = bytes[1] << 8 | bytes[0];
+ outs() << "\t.short " << format("%5u", Value & 0xffff)
+ << "\t@ KIND_JUMP_TABLE16\n";
+ Size = 2;
break;
case MachO::DICE_KIND_JUMP_TABLE32:
- Value = bytes[3] << 24 |
- bytes[2] << 16 |
- bytes[1] << 8 |
- bytes[0];
- outs() << "\t.long " << Value << "\t@ KIND_JUMP_TABLE32";
- break;
- default:
- outs() << "\t@ data in code kind = " << Kind << "\n";
+ case MachO::DICE_KIND_ABS_JUMP_TABLE32:
+ if (!NoShowRawInsn)
+ DumpBytes(StringRef(bytes, 4));
+ Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
+ outs() << "\t.long " << Value;
+ if (Kind == MachO::DICE_KIND_JUMP_TABLE32)
+ outs() << "\t@ KIND_JUMP_TABLE32\n";
+ else
+ outs() << "\t@ KIND_ABS_JUMP_TABLE32\n";
+ Size = 4;
break;
}
+ return Size;
}
static void getSectionsAndSymbols(const MachO::mach_header Header,
std::vector<SymbolRef> &Symbols,
SmallVectorImpl<uint64_t> &FoundFns,
uint64_t &BaseSegmentAddress) {
- for (const SymbolRef &Symbol : MachOObj->symbols())
- Symbols.push_back(Symbol);
+ for (const SymbolRef &Symbol : MachOObj->symbols()) {
+ StringRef SymName;
+ Symbol.getName(SymName);
+ if (!SymName.startswith("ltmp"))
+ Symbols.push_back(Symbol);
+ }
for (const SectionRef &Section : MachOObj->sections()) {
StringRef SectName;
MachOObjectFile::LoadCommandInfo Command =
MachOObj->getFirstLoadCommandInfo();
bool BaseSegmentAddressSet = false;
- for (unsigned i = 0; ; ++i) {
+ for (unsigned i = 0;; ++i) {
if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) {
// We found a function starts segment, parse the addresses for later
// consumption.
MachO::linkedit_data_command LLC =
- MachOObj->getLinkeditDataLoadCommand(Command);
+ MachOObj->getLinkeditDataLoadCommand(Command);
MachOObj->ReadULEB128s(LLC.dataoff, FoundFns);
- }
- else if (Command.C.cmd == MachO::LC_SEGMENT) {
- MachO::segment_command SLC =
- MachOObj->getSegmentLoadCommand(Command);
+ } else if (Command.C.cmd == MachO::LC_SEGMENT) {
+ MachO::segment_command SLC = MachOObj->getSegmentLoadCommand(Command);
StringRef SegName = SLC.segname;
- if(!BaseSegmentAddressSet && SegName != "__PAGEZERO") {
+ if (!BaseSegmentAddressSet && SegName != "__PAGEZERO") {
BaseSegmentAddressSet = true;
BaseSegmentAddress = SLC.vmaddr;
}
}
}
-static void DisassembleInputMachO2(StringRef Filename,
- MachOObjectFile *MachOOF);
+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;
+ }
+ if (indirect_symbol ==
+ (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) {
+ outs() << "LOCAL ABSOLUTE\n";
+ continue;
+ }
+ if (indirect_symbol == MachO::INDIRECT_SYMBOL_ABS) {
+ outs() << "ABSOLUTE\n";
+ continue;
+ }
+ outs() << format("%5u ", indirect_symbol);
+ MachO::symtab_command Symtab = O->getSymtabLoadCommand();
+ if (indirect_symbol < Symtab.nsyms) {
+ symbol_iterator Sym = O->getSymbolByIndex(indirect_symbol);
+ SymbolRef Symbol = *Sym;
+ StringRef SymName;
+ Symbol.getName(SymName);
+ outs() << SymName;
+ } else {
+ outs() << "?";
+ }
+ outs() << "\n";
+ }
+}
-void llvm::DisassembleInputMachO(StringRef Filename) {
- ErrorOr<std::unique_ptr<MemoryBuffer>> BuffOrErr =
- MemoryBuffer::getFileOrSTDIN(Filename);
- if (std::error_code EC = BuffOrErr.getError()) {
- errs() << "llvm-objdump: " << Filename << ": " << EC.message() << "\n";
+static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) {
+ uint32_t LoadCommandCount = O->getHeader().ncmds;
+ MachOObjectFile::LoadCommandInfo Load = O->getFirstLoadCommandInfo();
+ for (unsigned I = 0;; ++I) {
+ 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 (I == LoadCommandCount - 1)
+ break;
+ else
+ Load = O->getNextLoadCommandInfo(Load);
+ }
+}
+
+// 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);
+ }
+ unsigned i;
+ for (i = 0; i < ArchFlags.size(); ++i) {
+ if (ArchFlags[i] == T.getArchName())
+ ArchFound = true;
+ break;
+ }
+ if (!ArchFound) {
+ errs() << "llvm-objdump: file: " + Filename + " does not contain "
+ << "architecture: " + ArchFlags[i] + "\n";
+ return false;
+ }
+ }
+ 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 or ArchiveHeaders.
+ if (Disassemble || PrivateHeaders || ExportsTrie || Rebase || Bind ||
+ LazyBind || WeakBind || IndirectSymbols) {
+ outs() << Filename;
+ if (!ArchiveMemberName.empty())
+ outs() << '(' << ArchiveMemberName << ')';
+ if (!ArchitectureName.empty())
+ outs() << " (architecture " << ArchitectureName << ")";
+ outs() << ":\n";
+ }
+
+ if (Disassemble)
+ DisassembleMachO(Filename, MachOOF);
+ if (IndirectSymbols)
+ PrintIndirectSymbols(MachOOF, true);
+ if (Relocations)
+ PrintRelocations(MachOOF);
+ if (SectionHeaders)
+ PrintSectionHeaders(MachOOF);
+ if (SectionContents)
+ PrintSectionContents(MachOOF);
+ if (SymbolTable)
+ PrintSymbolTable(MachOOF);
+ if (UnwindInfo)
+ printMachOUnwindInfo(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";
+}
+
+// printCPUType() helps print_fat_headers by printing the cputype and
+// pusubtype (symbolically for the one's it knows about).
+static void printCPUType(uint32_t cputype, uint32_t cpusubtype) {
+ switch (cputype) {
+ case MachO::CPU_TYPE_I386:
+ switch (cpusubtype) {
+ case MachO::CPU_SUBTYPE_I386_ALL:
+ outs() << " cputype CPU_TYPE_I386\n";
+ outs() << " cpusubtype CPU_SUBTYPE_I386_ALL\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_X86_64:
+ switch (cpusubtype) {
+ case MachO::CPU_SUBTYPE_X86_64_ALL:
+ outs() << " cputype CPU_TYPE_X86_64\n";
+ outs() << " cpusubtype CPU_SUBTYPE_X86_64_ALL\n";
+ break;
+ case MachO::CPU_SUBTYPE_X86_64_H:
+ outs() << " cputype CPU_TYPE_X86_64\n";
+ outs() << " cpusubtype CPU_SUBTYPE_X86_64_H\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_ARM:
+ switch (cpusubtype) {
+ case MachO::CPU_SUBTYPE_ARM_ALL:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_ALL\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V4T:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V4T\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V5TEJ:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V5TEJ\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_XSCALE:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_XSCALE\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V6:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V6M:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7EM:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7K:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7M:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7S:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_ARM64:
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_ARM64_ALL:
+ outs() << " cputype CPU_TYPE_ARM64\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM64_ALL\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+}
+
+static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB,
+ bool verbose) {
+ outs() << "Fat headers\n";
+ if (verbose)
+ 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(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() << "-";
+ if (Mode & sys::fs::owner_read)
+ outs() << "r";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::owner_write)
+ outs() << "w";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::owner_exe)
+ outs() << "x";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::group_read)
+ outs() << "r";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::group_write)
+ outs() << "w";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::group_exe)
+ outs() << "x";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::others_read)
+ outs() << "r";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::others_write)
+ outs() << "w";
+ else
+ outs() << "-";
+ if (Mode & sys::fs::others_exe)
+ outs() << "x";
+ else
+ outs() << "-";
+ } else {
+ outs() << format("0%o ", Mode);
+ }
+
+ unsigned UID = C.getUID();
+ outs() << format("%3d/", UID);
+ unsigned GID = C.getGID();
+ outs() << format("%-3d ", GID);
+ uint64_t Size = C.getRawSize();
+ outs() << format("%5d ", Size);
+
+ 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) {
+ if (A->hasSymbolTable()) {
+ Archive::child_iterator S = A->getSymbolTableChild();
+ Archive::Child C = *S;
+ printArchiveChild(C, verbose, print_offset);
+ }
+ for (Archive::child_iterator I = A->child_begin(), E = A->child_end(); I != E;
+ ++I) {
+ 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()) {
+ errs() << "llvm-objdump: '" << Filename << "': " << EC.message() << ".\n";
+ return;
+ }
+ Binary &Bin = *BinaryOrErr.get().getBinary();
+
+ if (Archive *A = dyn_cast<Archive>(&Bin)) {
+ outs() << "Archive : " << Filename << "\n";
+ if (ArchiveHeaders)
+ printArchiveHeaders(A, true, false);
+ 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());
+ }
+ }
+ return;
+ }
+ if (UniversalHeaders) {
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin))
+ printMachOUniversalHeaders(UB, true);
+ }
+ 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(), true, false);
+ 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;
+ }
+ }
+ 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(), true, false);
+ 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());
+ }
+ }
+ return;
+ }
+ }
+ }
+ // Either all architectures have been specified or none have been specified
+ // and this does not contain the host architecture so dump all the slices.
+ bool moreThanOneArch = UB->getNumberOfObjects() > 1;
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ 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(), true, false);
+ 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;
}
- std::unique_ptr<MemoryBuffer> Buff = std::move(BuffOrErr.get());
+ 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";
+}
- std::unique_ptr<MachOObjectFile> MachOOF = std::move(
- ObjectFile::createMachOObjectFile(Buff.get()->getMemBufferRef()).get());
+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;
+};
+
+// 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;
+}
+
+// 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;
+
+ // 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 == false)
+ return 0;
+
+ 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;
+ }
+ } else {
+ isExtern = info->O->getPlainRelocationExternal(RE);
+ if (isExtern) {
+ symbol_iterator RelocSym = Reloc.getSymbol();
+ Symbol = *RelocSym;
+ }
+ }
+ 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;
+ }
+ 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;
+ }
+ // 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;
+ }
+ }
+ 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;
+ }
+ // 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;
+
+ 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;
+ }
+ }
+
+ 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;
+ }
+
+ if (reloc_found == false)
+ return 0;
+
+ 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;
+ }
+ }
+ const char *add = GuessSymbolName(value, info);
+ if (add != nullptr) {
+ op_info->AddSymbol.Name = add;
+ return 1;
+ }
+ 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;
+ }
+ }
+ 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;
+ }
+ return 0;
+ } else {
+ 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.
+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;
+ }
+ }
+ }
+ } 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;
+ }
+ }
+ }
+ }
+ if (I == LoadCommandCount - 1)
+ break;
+ else
+ Load = info->O->getNextLoadCommandInfo(Load);
+ }
+ 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) {
+ 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;
+ else
+ Load = info->O->getNextLoadCommandInfo(Load);
+ }
+ 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;
+ 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;
+ else
+ Load = info->O->getNextLoadCommandInfo(Load);
+ }
+ 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) {
+ 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;
+ }
+ }
+ 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;
+
+ // 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 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;
+ }
+ }
+
+ // 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.
+
+ // 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);
+
+ return SymbolName;
+}
+
+// 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 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)
+};
+
+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 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);
+}
+
+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.
+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.
+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
+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;
+}
+
+// GuessLiteralPointer returns a string which for the item in the Mach-O file
+// for the address passed in as ReferenceValue for printing as a comment with
+// the instruction and also returns the corresponding type of that item
+// indirectly through ReferenceType.
+//
+// If ReferenceValue is an address of literal cstring then a pointer to the
+// cstring is returned and ReferenceType is set to
+// LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr .
+//
+// If ReferenceValue is an address of an Objective-C CFString, Selector ref or
+// Class ref that name is returned and the ReferenceType is set accordingly.
+//
+// Lastly, literals which are Symbol address in a literal pool are looked for
+// and if found the symbol name is returned and ReferenceType is set to
+// LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr .
+//
+// If there is no item in the Mach-O file for the address passed in as
+// ReferenceValue nullptr is returned and ReferenceType is unchanged.
+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;
+ }
+ 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);
+ }
+ }
+ }
+
+ // Look for literals such as Objective-C CFStrings refs, Selector refs,
+ // Message refs and Class refs.
+ bool classref, selref, msgref, cfstring;
+ uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref,
+ selref, msgref, cfstring);
+ if (classref == true && pointer_value == 0) {
+ // Note the ReferenceValue is a pointer into the __objc_classrefs section.
+ // And the pointer_value in that section is typically zero as it will be
+ // set by dyld as part of the "bind information".
+ const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info);
+ if (name != nullptr) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
+ const char *class_name = strrchr(name, '$');
+ if (class_name != nullptr && class_name[1] == '_' &&
+ class_name[2] != '\0') {
+ info->class_name = class_name + 2;
+ return name;
+ }
+ }
+ }
+
+ if (classref == true) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
+ const char *name =
+ get_objc2_64bit_class_name(pointer_value, ReferenceValue, info);
+ if (name != nullptr)
+ info->class_name = name;
+ else
+ name = "bad class ref";
+ return name;
+ }
+
+ if (cfstring == true) {
+ *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)
+ pointer_value = get_objc2_64bit_selref(ReferenceValue, info);
+
+ if (pointer_value != 0)
+ ReferenceValue = pointer_value;
+
+ const char *name = GuessCstringPointer(ReferenceValue, info);
+ if (name) {
+ if (pointer_value != 0 && selref == true) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref;
+ info->selector_name = name;
+ } else if (pointer_value != 0 && msgref == true) {
+ info->class_name = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref;
+ info->selector_name = name;
+ } else
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr;
+ return name;
+ }
+
+ // Lastly look for an indirect symbol with this ReferenceValue which is in
+ // a literal pool. If found return that symbol name.
+ name = GuessIndirectSymbol(ReferenceValue, info);
+ if (name) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr;
+ return name;
+ }
+
+ return nullptr;
+}
+
+// SymbolizerSymbolLookUp is the symbol lookup function passed when creating
+// the Symbolizer. It looks up the ReferenceValue using the info passed via the
+// pointer to the struct DisassembleInfo that was passed when MCSymbolizer
+// is created and returns the symbol name that matches the ReferenceValue or
+// nullptr if none. The ReferenceType is passed in for the IN type of
+// reference the instruction is making from the values in defined in the header
+// "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific
+// Out type and the ReferenceName will also be set which is added as a comment
+// to the disassembled instruction.
+//
+#if HAVE_CXXABI_H
+// If the symbol name is a C++ mangled name then the demangled name is
+// returned through ReferenceName and ReferenceType is set to
+// LLVMDisassembler_ReferenceType_DeMangled_Name .
+#endif
+//
+// When this is called to get a symbol name for a branch target then the
+// ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then
+// SymbolValue will be looked for in the indirect symbol table to determine if
+// it is an address for a symbol stub. If so then the symbol name for that
+// stub is returned indirectly through ReferenceName and then ReferenceType is
+// set to LLVMDisassembler_ReferenceType_Out_SymbolStub.
+//
+// When this is called with an value loaded via a PC relative load then
+// ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the
+// SymbolValue is checked to be an address of literal pointer, symbol pointer,
+// or an Objective-C meta data reference. If so the output ReferenceType is
+// set to correspond to that as well as setting the ReferenceName.
+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) {
+ *ReferenceName = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ return nullptr;
+ }
+
+ const char *SymbolName = GuessSymbolName(ReferenceValue, info);
+
+ if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch) {
+ *ReferenceName = GuessIndirectSymbol(ReferenceValue, info);
+ if (*ReferenceName != nullptr) {
+ method_reference(info, ReferenceType, ReferenceName);
+ if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message)
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub;
+ } else
+#if HAVE_CXXABI_H
+ if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
+ if (info->demangled_name != nullptr)
+ free(info->demangled_name);
+ int status;
+ info->demangled_name =
+ abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
+ if (info->demangled_name != nullptr) {
+ *ReferenceName = info->demangled_name;
+ *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
+ } else
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ } else
+#endif
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load) {
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName)
+ method_reference(info, ReferenceType, ReferenceName);
+ else
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ // If this is arm64 and the reference is an adrp instruction save the
+ // instruction, passed in ReferenceValue and the address of the instruction
+ // for use later if we see and add immediate instruction.
+ } else if (info->O->getArch() == Triple::aarch64 &&
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP) {
+ info->adrp_inst = ReferenceValue;
+ info->adrp_addr = ReferencePC;
+ SymbolName = nullptr;
+ *ReferenceName = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ // If this is arm64 and reference is an add immediate instruction and we
+ // have
+ // seen an adrp instruction just before it and the adrp's Xd register
+ // matches
+ // this add's Xn register reconstruct the value being referenced and look to
+ // see if it is a literal pointer. Note the add immediate instruction is
+ // passed in ReferenceValue.
+ } else if (info->O->getArch() == Triple::aarch64 &&
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri &&
+ ReferencePC - 4 == info->adrp_addr &&
+ (info->adrp_inst & 0x9f000000) == 0x90000000 &&
+ (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
+ uint32_t addxri_inst;
+ uint64_t adrp_imm, addxri_imm;
+
+ adrp_imm =
+ ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
+ if (info->adrp_inst & 0x0200000)
+ adrp_imm |= 0xfffffffffc000000LL;
+
+ addxri_inst = ReferenceValue;
+ addxri_imm = (addxri_inst >> 10) & 0xfff;
+ if (((addxri_inst >> 22) & 0x3) == 1)
+ addxri_imm <<= 12;
+
+ ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
+ (adrp_imm << 12) + addxri_imm;
+
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName == nullptr)
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ // If this is arm64 and the reference is a load register instruction and we
+ // have seen an adrp instruction just before it and the adrp's Xd register
+ // matches this add's Xn register reconstruct the value being referenced and
+ // look to see if it is a literal pointer. Note the load register
+ // instruction is passed in ReferenceValue.
+ } else if (info->O->getArch() == Triple::aarch64 &&
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui &&
+ ReferencePC - 4 == info->adrp_addr &&
+ (info->adrp_inst & 0x9f000000) == 0x90000000 &&
+ (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
+ uint32_t ldrxui_inst;
+ uint64_t adrp_imm, ldrxui_imm;
+
+ adrp_imm =
+ ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
+ if (info->adrp_inst & 0x0200000)
+ adrp_imm |= 0xfffffffffc000000LL;
+
+ ldrxui_inst = ReferenceValue;
+ ldrxui_imm = (ldrxui_inst >> 10) & 0xfff;
+
+ ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
+ (adrp_imm << 12) + (ldrxui_imm << 3);
+
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName == nullptr)
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ }
+ // If this arm64 and is an load register (PC-relative) instruction the
+ // ReferenceValue is the PC plus the immediate value.
+ else if (info->O->getArch() == Triple::aarch64 &&
+ (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl ||
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR)) {
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName == nullptr)
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ }
+#if HAVE_CXXABI_H
+ else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
+ if (info->demangled_name != nullptr)
+ free(info->demangled_name);
+ int status;
+ info->demangled_name =
+ abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
+ if (info->demangled_name != nullptr) {
+ *ReferenceName = info->demangled_name;
+ *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
+ }
+ }
+#endif
+ else {
+ *ReferenceName = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ }
+
+ return SymbolName;
+}
+
+/// \brief Emits the comments that are stored in the CommentStream.
+/// Each comment in the CommentStream must end with a newline.
+static void emitComments(raw_svector_ostream &CommentStream,
+ SmallString<128> &CommentsToEmit,
+ formatted_raw_ostream &FormattedOS,
+ const MCAsmInfo &MAI) {
+ // Flush the stream before taking its content.
+ CommentStream.flush();
+ StringRef Comments = CommentsToEmit.str();
+ // Get the default information for printing a comment.
+ const char *CommentBegin = MAI.getCommentString();
+ unsigned CommentColumn = MAI.getCommentColumn();
+ bool IsFirst = true;
+ while (!Comments.empty()) {
+ if (!IsFirst)
+ FormattedOS << '\n';
+ // Emit a line of comments.
+ FormattedOS.PadToColumn(CommentColumn);
+ size_t Position = Comments.find('\n');
+ FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position);
+ // Move after the newline character.
+ Comments = Comments.substr(Position + 1);
+ IsFirst = false;
+ }
+ FormattedOS.flush();
- DisassembleInputMachO2(Filename, MachOOF.get());
+ // Tell the comment stream that the vector changed underneath it.
+ CommentsToEmit.clear();
+ CommentStream.resync();
}
-static void DisassembleInputMachO2(StringRef Filename,
- MachOObjectFile *MachOOF) {
+static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF) {
const char *McpuDefault = nullptr;
const Target *ThumbTarget = nullptr;
const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget);
MCPU = McpuDefault;
std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
- std::unique_ptr<MCInstrAnalysis> InstrAnalysis(
- TheTarget->createMCInstrAnalysis(InstrInfo.get()));
std::unique_ptr<const MCInstrInfo> ThumbInstrInfo;
- std::unique_ptr<MCInstrAnalysis> ThumbInstrAnalysis;
- if (ThumbTarget) {
+ if (ThumbTarget)
ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo());
- ThumbInstrAnalysis.reset(
- ThumbTarget->createMCInstrAnalysis(ThumbInstrInfo.get()));
- }
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
std::unique_ptr<const MCSubtargetInfo> STI(
TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
MCContext Ctx(AsmInfo.get(), MRI.get(), nullptr);
- std::unique_ptr<const MCDisassembler> DisAsm(
+ std::unique_ptr<MCDisassembler> DisAsm(
TheTarget->createMCDisassembler(*STI, Ctx));
+ std::unique_ptr<MCSymbolizer> Symbolizer;
+ struct DisassembleInfo SymbolizerInfo;
+ std::unique_ptr<MCRelocationInfo> RelInfo(
+ TheTarget->createMCRelocationInfo(TripleName, Ctx));
+ if (RelInfo) {
+ Symbolizer.reset(TheTarget->createMCSymbolizer(
+ TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
+ &SymbolizerInfo, &Ctx, std::move(RelInfo)));
+ DisAsm->setSymbolizer(std::move(Symbolizer));
+ }
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI, *STI));
-
- if (!InstrAnalysis || !AsmInfo || !STI || !DisAsm || !IP) {
+ // Set the display preference for hex vs. decimal immediates.
+ IP->setPrintImmHex(PrintImmHex);
+ // Comment stream and backing vector.
+ SmallString<128> CommentsToEmit;
+ raw_svector_ostream CommentStream(CommentsToEmit);
+ // FIXME: Setting the CommentStream in the InstPrinter is problematic in that
+ // if it is done then arm64 comments for string literals don't get printed
+ // and some constant get printed instead and not setting it causes intel
+ // (32-bit and 64-bit) comments printed with different spacing before the
+ // comment causing different diffs with the 'C' disassembler library API.
+ // IP->setCommentStream(CommentStream);
+
+ if (!AsmInfo || !STI || !DisAsm || !IP) {
errs() << "error: couldn't initialize disassembler for target "
<< TripleName << '\n';
return;
std::unique_ptr<const MCRegisterInfo> ThumbMRI;
std::unique_ptr<const MCAsmInfo> ThumbAsmInfo;
std::unique_ptr<const MCSubtargetInfo> ThumbSTI;
- std::unique_ptr<const MCDisassembler> ThumbDisAsm;
+ std::unique_ptr<MCDisassembler> ThumbDisAsm;
std::unique_ptr<MCInstPrinter> ThumbIP;
std::unique_ptr<MCContext> ThumbCtx;
+ std::unique_ptr<MCSymbolizer> ThumbSymbolizer;
+ struct DisassembleInfo ThumbSymbolizerInfo;
+ std::unique_ptr<MCRelocationInfo> ThumbRelInfo;
if (ThumbTarget) {
ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName));
ThumbAsmInfo.reset(
ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MCPU, FeaturesStr));
ThumbCtx.reset(new MCContext(ThumbAsmInfo.get(), ThumbMRI.get(), nullptr));
ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx));
+ MCContext *PtrThumbCtx = ThumbCtx.get();
+ ThumbRelInfo.reset(
+ ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx));
+ if (ThumbRelInfo) {
+ ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer(
+ ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
+ &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo)));
+ ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer));
+ }
int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect();
ThumbIP.reset(ThumbTarget->createMCInstPrinter(
ThumbAsmPrinterVariant, *ThumbAsmInfo, *ThumbInstrInfo, *ThumbMRI,
*ThumbSTI));
+ // Set the display preference for hex vs. decimal immediates.
+ ThumbIP->setPrintImmHex(PrintImmHex);
}
- if (ThumbTarget && (!ThumbInstrAnalysis || !ThumbAsmInfo || !ThumbSTI ||
- !ThumbDisAsm || !ThumbIP)) {
+ if (ThumbTarget && (!ThumbAsmInfo || !ThumbSTI || !ThumbDisAsm || !ThumbIP)) {
errs() << "error: couldn't initialize disassembler for target "
<< ThumbTripleName << '\n';
return;
}
- outs() << '\n' << Filename << ":\n\n";
-
MachO::mach_header Header = MachOOF->getHeader();
- // FIXME: FoundFns isn't used anymore. Using symbols/LC_FUNCTION_STARTS to
- // determine function locations will eventually go in MCObjectDisassembler.
// FIXME: Using the -cfg command line option, this code used to be able to
// annotate relocations with the referenced symbol's name, and if this was
// inside a __[cf]string section, the data it points to. This is now replaced
// Build a data in code table that is sorted on by the address of each entry.
uint64_t BaseAddress = 0;
if (Header.filetype == MachO::MH_OBJECT)
- Sections[0].getAddress(BaseAddress);
+ BaseAddress = Sections[0].getAddress();
else
BaseAddress = BaseSegmentAddress;
DiceTable Dices;
diContext.reset(DIContext::getDWARFContext(*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";
+
for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) {
- bool SectIsText = false;
- Sections[SectIdx].isText(SectIsText);
+ bool SectIsText = Sections[SectIdx].isText();
if (SectIsText == false)
continue;
StringRef SectName;
- if (Sections[SectIdx].getName(SectName) ||
- SectName != "__text")
+ if (Sections[SectIdx].getName(SectName) || SectName != "__text")
continue; // Skip non-text sections
DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
if (SegmentName != "__TEXT")
continue;
- StringRef Bytes;
- Sections[SectIdx].getContents(Bytes);
- StringRefMemoryObject memoryObject(Bytes);
+ StringRef BytesStr;
+ Sections[SectIdx].getContents(BytesStr);
+ ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
+ BytesStr.size());
+ uint64_t SectAddress = Sections[SectIdx].getAddress();
+
bool symbolTableWorked = false;
// Parse relocations.
std::vector<std::pair<uint64_t, SymbolRef>> Relocs;
for (const RelocationRef &Reloc : Sections[SectIdx].relocations()) {
- uint64_t RelocOffset, SectionAddress;
+ uint64_t RelocOffset;
Reloc.getOffset(RelocOffset);
- Sections[SectIdx].getAddress(SectionAddress);
+ uint64_t SectionAddress = Sections[SectIdx].getAddress();
RelocOffset -= SectionAddress;
symbol_iterator RelocSym = Reloc.getSymbol();
}
array_pod_sort(Relocs.begin(), Relocs.end());
+ // Create a map of symbol addresses to symbol names for use by
+ // the SymbolizerSymbolLookUp() routine.
+ SymbolAddressMap AddrMap;
+ for (const SymbolRef &Symbol : MachOOF->symbols()) {
+ SymbolRef::Type ST;
+ Symbol.getType(ST);
+ if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
+ ST == SymbolRef::ST_Other) {
+ uint64_t Address;
+ Symbol.getAddress(Address);
+ StringRef SymName;
+ Symbol.getName(SymName);
+ AddrMap[Address] = SymName;
+ }
+ }
+ // Set up the block of info used by the Symbolizer call backs.
+ SymbolizerInfo.verbose = true;
+ SymbolizerInfo.O = MachOOF;
+ SymbolizerInfo.S = Sections[SectIdx];
+ SymbolizerInfo.AddrMap = &AddrMap;
+ SymbolizerInfo.Sections = &Sections;
+ SymbolizerInfo.class_name = nullptr;
+ SymbolizerInfo.selector_name = nullptr;
+ SymbolizerInfo.method = nullptr;
+ SymbolizerInfo.demangled_name = nullptr;
+ SymbolizerInfo.bindtable = nullptr;
+ SymbolizerInfo.adrp_addr = 0;
+ SymbolizerInfo.adrp_inst = 0;
+ // Same for the ThumbSymbolizer
+ ThumbSymbolizerInfo.verbose = true;
+ ThumbSymbolizerInfo.O = MachOOF;
+ ThumbSymbolizerInfo.S = Sections[SectIdx];
+ ThumbSymbolizerInfo.AddrMap = &AddrMap;
+ ThumbSymbolizerInfo.Sections = &Sections;
+ ThumbSymbolizerInfo.class_name = nullptr;
+ ThumbSymbolizerInfo.selector_name = nullptr;
+ ThumbSymbolizerInfo.method = nullptr;
+ ThumbSymbolizerInfo.demangled_name = nullptr;
+ ThumbSymbolizerInfo.bindtable = nullptr;
+ ThumbSymbolizerInfo.adrp_addr = 0;
+ ThumbSymbolizerInfo.adrp_inst = 0;
+
// Disassemble symbol by symbol.
for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) {
StringRef SymName;
continue;
// Make sure the symbol is defined in this section.
- bool containsSym = false;
- Sections[SectIdx].containsSymbol(Symbols[SymIdx], containsSym);
+ bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]);
if (!containsSym)
continue;
// Start at the address of the symbol relative to the section's address.
- uint64_t SectionAddress = 0;
uint64_t Start = 0;
- Sections[SectIdx].getAddress(SectionAddress);
+ uint64_t SectionAddress = Sections[SectIdx].getAddress();
Symbols[SymIdx].getAddress(Start);
Start -= SectionAddress;
// the end of the section.
bool containsNextSym = false;
uint64_t NextSym = 0;
- uint64_t NextSymIdx = SymIdx+1;
+ uint64_t NextSymIdx = SymIdx + 1;
while (Symbols.size() > NextSymIdx) {
SymbolRef::Type NextSymType;
Symbols[NextSymIdx].getType(NextSymType);
if (NextSymType == SymbolRef::ST_Function) {
- Sections[SectIdx].containsSymbol(Symbols[NextSymIdx],
- containsNextSym);
+ containsNextSym =
+ Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]);
Symbols[NextSymIdx].getAddress(NextSym);
NextSym -= SectionAddress;
break;
++NextSymIdx;
}
- uint64_t SectSize;
- Sections[SectIdx].getSize(SectSize);
- uint64_t End = containsNextSym ? NextSym : SectSize;
+ uint64_t SectSize = Sections[SectIdx].getSize();
+ uint64_t End = containsNextSym ? NextSym : SectSize;
uint64_t Size;
symbolTableWorked = true;
for (uint64_t Index = Start; Index < End; Index += Size) {
MCInst Inst;
- uint64_t SectAddress = 0;
- Sections[SectIdx].getAddress(SectAddress);
- outs() << format("%8" PRIx64 ":\t", SectAddress + Index);
+ 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 (!NoShowRawInsn)
+ outs() << "\t";
// Check the data in code table here to see if this is data not an
// instruction to be disassembled.
DiceTable Dice;
- Dice.push_back(std::make_pair(SectAddress + Index, DiceRef()));
- dice_table_iterator DTI = std::search(Dices.begin(), Dices.end(),
- Dice.begin(), Dice.end(),
- compareDiceTableEntries);
- if (DTI != Dices.end()){
+ Dice.push_back(std::make_pair(PC, DiceRef()));
+ dice_table_iterator DTI =
+ std::search(Dices.begin(), Dices.end(), Dice.begin(), Dice.end(),
+ compareDiceTableEntries);
+ if (DTI != Dices.end()) {
uint16_t Length;
DTI->second.getLength(Length);
- DumpBytes(StringRef(Bytes.data() + Index, Length));
uint16_t Kind;
DTI->second.getKind(Kind);
- DumpDataInCode(Bytes.data() + Index, Length, Kind);
+ Size = DumpDataInCode(reinterpret_cast<const char *>(Bytes.data()) +
+ Index,
+ Length, Kind);
+ if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) &&
+ (PC == (DTI->first + Length - 1)) && (Length & 1))
+ Size++;
continue;
}
+ SmallVector<char, 64> AnnotationsBytes;
+ raw_svector_ostream Annotations(AnnotationsBytes);
+
bool gotInst;
if (isThumb)
- gotInst = ThumbDisAsm->getInstruction(Inst, Size, memoryObject, Index,
- DebugOut, nulls());
+ gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
+ PC, DebugOut, Annotations);
else
- gotInst = DisAsm->getInstruction(Inst, Size, memoryObject, Index,
- DebugOut, nulls());
+ gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC,
+ DebugOut, Annotations);
if (gotInst) {
- DumpBytes(StringRef(Bytes.data() + Index, Size));
+ if (!NoShowRawInsn) {
+ DumpBytes(StringRef(
+ reinterpret_cast<const char *>(Bytes.data()) + Index, Size));
+ }
+ formatted_raw_ostream FormattedOS(outs());
+ Annotations.flush();
+ StringRef AnnotationsStr = Annotations.str();
if (isThumb)
- ThumbIP->printInst(&Inst, outs(), "");
+ ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr);
else
- IP->printInst(&Inst, outs(), "");
+ IP->printInst(&Inst, FormattedOS, AnnotationsStr);
+ emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo);
// Print debug info.
if (diContext) {
- DILineInfo dli =
- diContext->getLineInfoForAddress(SectAddress + Index);
+ DILineInfo dli = diContext->getLineInfoForAddress(PC);
// Print valid line info if it changed.
if (dli != lastLine && dli.Line != 0)
outs() << "\t## " << dli.FileName << ':' << dli.Line << ':'
}
outs() << "\n";
} else {
- errs() << "llvm-objdump: warning: invalid instruction encoding\n";
- if (Size == 0)
- Size = 1; // skip illegible bytes
+ unsigned int Arch = MachOOF->getArch();
+ if (Arch == Triple::x86_64 || Arch == Triple::x86) {
+ outs() << format("\t.byte 0x%02x #bad opcode\n",
+ *(Bytes.data() + Index) & 0xff);
+ Size = 1; // skip exactly one illegible byte and move on.
+ } else if (Arch == Triple::aarch64) {
+ uint32_t opcode = (*(Bytes.data() + Index) & 0xff) |
+ (*(Bytes.data() + Index + 1) & 0xff) << 8 |
+ (*(Bytes.data() + Index + 2) & 0xff) << 16 |
+ (*(Bytes.data() + Index + 3) & 0xff) << 24;
+ outs() << format("\t.long\t0x%08x\n", opcode);
+ Size = 4;
+ } else {
+ errs() << "llvm-objdump: warning: invalid instruction encoding\n";
+ if (Size == 0)
+ Size = 1; // skip illegible bytes
+ }
}
}
}
if (!symbolTableWorked) {
- // Reading the symbol table didn't work, disassemble the whole section.
- uint64_t SectAddress;
- Sections[SectIdx].getAddress(SectAddress);
- uint64_t SectSize;
- Sections[SectIdx].getSize(SectSize);
+ // Reading the symbol table didn't work, disassemble the whole section.
+ uint64_t SectAddress = Sections[SectIdx].getAddress();
+ uint64_t SectSize = Sections[SectIdx].getSize();
uint64_t InstSize;
for (uint64_t Index = 0; Index < SectSize; Index += InstSize) {
MCInst Inst;
- if (DisAsm->getInstruction(Inst, InstSize, memoryObject, Index,
+ uint64_t PC = SectAddress + Index;
+ if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC,
DebugOut, nulls())) {
- outs() << format("%8" PRIx64 ":\t", SectAddress + Index);
- DumpBytes(StringRef(Bytes.data() + Index, InstSize));
+ 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));
+ }
IP->printInst(&Inst, outs(), "");
outs() << "\n";
} else {
- errs() << "llvm-objdump: warning: invalid instruction encoding\n";
- if (InstSize == 0)
- InstSize = 1; // skip illegible bytes
+ unsigned int Arch = MachOOF->getArch();
+ if (Arch == Triple::x86_64 || Arch == Triple::x86) {
+ outs() << format("\t.byte 0x%02x #bad opcode\n",
+ *(Bytes.data() + Index) & 0xff);
+ InstSize = 1; // skip exactly one illegible byte and move on.
+ } else {
+ errs() << "llvm-objdump: warning: invalid instruction encoding\n";
+ if (InstSize == 0)
+ InstSize = 1; // skip illegible bytes
+ }
}
}
}
+ // The TripleName's need to be reset if we are called again for a different
+ // archtecture.
+ TripleName = "";
+ ThumbTripleName = "";
+
+ if (SymbolizerInfo.method != nullptr)
+ free(SymbolizerInfo.method);
+ if (SymbolizerInfo.demangled_name != nullptr)
+ free(SymbolizerInfo.demangled_name);
+ if (SymbolizerInfo.bindtable != nullptr)
+ delete SymbolizerInfo.bindtable;
+ if (ThumbSymbolizerInfo.method != nullptr)
+ free(ThumbSymbolizerInfo.method);
+ if (ThumbSymbolizerInfo.demangled_name != nullptr)
+ free(ThumbSymbolizerInfo.demangled_name);
+ if (ThumbSymbolizerInfo.bindtable != nullptr)
+ delete ThumbSymbolizerInfo.bindtable;
}
}
-
//===----------------------------------------------------------------------===//
// __compact_unwind section dumping
//===----------------------------------------------------------------------===//
namespace {
template <typename T> static uint64_t readNext(const char *&Buf) {
- using llvm::support::little;
- using llvm::support::unaligned;
+ using llvm::support::little;
+ using llvm::support::unaligned;
- uint64_t Val = support::endian::read<T, little, unaligned>(Buf);
- Buf += sizeof(T);
- return Val;
- }
+ uint64_t Val = support::endian::read<T, little, unaligned>(Buf);
+ Buf += sizeof(T);
+ return Val;
+}
struct CompactUnwindEntry {
uint32_t OffsetInSection;
RelocationRef LSDAReloc;
CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64)
- : OffsetInSection(Offset) {
+ : OffsetInSection(Offset) {
if (Is64)
read<uint64_t>(Contents.data() + Offset);
else
}
private:
- template<typename UIntPtr>
- void read(const char *Buf) {
+ template <typename UIntPtr> void read(const char *Buf) {
FunctionAddr = readNext<UIntPtr>(Buf);
Length = readNext<uint32_t>(Buf);
CompactEncoding = readNext<uint32_t>(Buf);
/// referenced section.
static void findUnwindRelocNameAddend(const MachOObjectFile *Obj,
std::map<uint64_t, SymbolRef> &Symbols,
- const RelocationRef &Reloc,
- uint64_t Addr,
+ const RelocationRef &Reloc, uint64_t Addr,
StringRef &Name, uint64_t &Addend) {
if (Reloc.getSymbol() != Obj->symbol_end()) {
Reloc.getSymbol()->getName(Name);
auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl());
SectionRef RelocSection = Obj->getRelocationSection(RE);
- uint64_t SectionAddr;
- RelocSection.getAddress(SectionAddr);
+ uint64_t SectionAddr = RelocSection.getAddress();
auto Sym = Symbols.upper_bound(Addr);
if (Sym == Symbols.begin()) {
static void printUnwindRelocDest(const MachOObjectFile *Obj,
std::map<uint64_t, SymbolRef> &Symbols,
- const RelocationRef &Reloc,
- uint64_t Addr) {
+ const RelocationRef &Reloc, uint64_t Addr) {
StringRef Name;
uint64_t Addend;
+ if (!Reloc.getObjectFile())
+ return;
+
findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend);
outs() << Name;
<< format("0x%" PRIx32, Entry.OffsetInSection) << ":\n";
// 1. Start of the region this entry applies to.
- outs() << " start: "
- << format("0x%" PRIx64, Entry.FunctionAddr) << ' ';
- printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc,
- Entry.FunctionAddr);
+ outs() << " start: " << format("0x%" PRIx64,
+ Entry.FunctionAddr) << ' ';
+ printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc, Entry.FunctionAddr);
outs() << '\n';
// 2. Length of the region this entry applies to.
- outs() << " length: "
- << format("0x%" PRIx32, Entry.Length) << '\n';
+ outs() << " length: " << format("0x%" PRIx32, Entry.Length)
+ << '\n';
// 3. The 32-bit compact encoding.
outs() << " compact encoding: "
<< format("0x%08" PRIx32, Entry.CompactEncoding) << '\n';
// 5. This entry's language-specific data area.
if (Entry.LSDAReloc.getObjectFile()) {
- outs() << " LSDA: "
- << format("0x%" PRIx64, Entry.LSDAAddr) << ' ';
+ outs() << " LSDA: " << format("0x%" PRIx64,
+ Entry.LSDAAddr) << ' ';
printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr);
outs() << '\n';
}
uint32_t Encoding = readNext<uint32_t>(Pos);
outs() << " [" << i << "]: "
- << "function offset="
- << format("0x%08" PRIx32, FunctionOffset) << ", "
- << "encoding="
- << format("0x%08" PRIx32, Encoding)
- << '\n';
+ << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
+ << ", "
+ << "encoding=" << format("0x%08" PRIx32, Encoding) << '\n';
}
}
Encoding = PageEncodings[EncodingIdx - CommonEncodings.size()];
outs() << " [" << i << "]: "
- << "function offset="
- << format("0x%08" PRIx32, FunctionOffset) << ", "
- << "encoding[" << EncodingIdx << "]="
- << format("0x%08" PRIx32, Encoding)
- << '\n';
+ << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
+ << ", "
+ << "encoding[" << EncodingIdx
+ << "]=" << format("0x%08" PRIx32, Encoding) << '\n';
}
}
-static void
-printMachOUnwindInfoSection(const MachOObjectFile *Obj,
- std::map<uint64_t, SymbolRef> &Symbols,
- const SectionRef &UnwindInfo) {
+static void printMachOUnwindInfoSection(const MachOObjectFile *Obj,
+ std::map<uint64_t, SymbolRef> &Symbols,
+ const SectionRef &UnwindInfo) {
assert(Obj->isLittleEndian() &&
"There should not be a big-endian .o with __unwind_info");
<< '\n';
}
-
//===----------------------------------
// Personality functions used in this executable
//===----------------------------------
IndexEntries.push_back(Entry);
outs() << " [" << i << "]: "
- << "function offset="
- << format("0x%08" PRIx32, Entry.FunctionOffset) << ", "
+ << "function offset=" << format("0x%08" PRIx32, Entry.FunctionOffset)
+ << ", "
<< "2nd level page offset="
<< format("0x%08" PRIx32, Entry.SecondLevelPageStart) << ", "
- << "LSDA offset="
- << format("0x%08" PRIx32, Entry.LSDAStart) << '\n';
+ << "LSDA offset=" << format("0x%08" PRIx32, Entry.LSDAStart) << '\n';
}
-
//===----------------------------------
// Next come the LSDA tables
//===----------------------------------
uint32_t FunctionOffset = readNext<uint32_t>(Pos);
uint32_t LSDAOffset = readNext<uint32_t>(Pos);
outs() << " [" << i << "]: "
- << "function offset="
- << format("0x%08" PRIx32, FunctionOffset) << ", "
- << "LSDA offset="
- << format("0x%08" PRIx32, LSDAOffset) << '\n';
+ << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
+ << ", "
+ << "LSDA offset=" << format("0x%08" PRIx32, LSDAOffset) << '\n';
}
//===----------------------------------
CommonEncodings);
else
llvm_unreachable("Do not know how to print this kind of 2nd level page");
-
}
}
printMachOUnwindInfoSection(Obj, Symbols, Section);
else if (SectName == "__eh_frame")
outs() << "llvm-objdump: warning: unhandled __eh_frame section\n";
-
}
}
break;
case MachO::CPU_TYPE_X86_64:
outs() << " X86_64";
- case MachO::CPU_SUBTYPE_X86_64_ALL:
- outs() << " ALL";
- break;
- case MachO::CPU_SUBTYPE_X86_64_H:
- outs() << " Haswell";
- outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_X86_64_ALL:
+ outs() << " ALL";
+ break;
+ case MachO::CPU_SUBTYPE_X86_64_H:
+ outs() << " Haswell";
+ break;
+ default:
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
+ }
break;
case MachO::CPU_TYPE_ARM:
outs() << " ARM";
break;
}
if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) {
- outs() << " LIB64 ";
+ outs() << " LIB64";
} else {
outs() << format(" 0x%02" PRIx32,
(cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24);
outs() << " vmaddr " << format("0x%016" PRIx64, vmaddr) << "\n";
outs() << " vmsize " << format("0x%016" PRIx64, vmsize) << "\n";
} else {
- outs() << " vmaddr " << format("0x%08" PRIx32, vmaddr) << "\n";
- outs() << " vmsize " << format("0x%08" PRIx32, vmsize) << "\n";
+ outs() << " vmaddr " << format("0x%08" PRIx64, vmaddr) << "\n";
+ outs() << " vmsize " << format("0x%08" PRIx64, vmsize) << "\n";
}
outs() << " fileoff " << fileoff;
if (fileoff > object_size)
outs() << " addr " << format("0x%016" PRIx64, addr) << "\n";
outs() << " size " << format("0x%016" PRIx64, size);
} else {
- outs() << " addr " << format("0x%08" PRIx32, addr) << "\n";
- outs() << " size " << format("0x%08" PRIx32, size);
+ outs() << " addr " << format("0x%08" PRIx64, addr) << "\n";
+ outs() << " size " << format("0x%08" PRIx64, size);
}
if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size)
outs() << " (past end of file)\n";
outs() << "\n";
}
-static void PrintSymtabLoadCommand(MachO::symtab_command st, uint32_t cputype,
+static void PrintSymtabLoadCommand(MachO::symtab_command st, bool Is64Bit,
uint32_t object_size) {
outs() << " cmd LC_SYMTAB\n";
outs() << " cmdsize " << st.cmdsize;
@@ -1534,7 +3700,7 @@ static void PrintSymtabLoadCommand(MachO::symtab_command st, uint32_t cputype,
outs() << "\n";
outs() << " nsyms " << st.nsyms;
uint64_t big_size;
- if (cputype & MachO::CPU_ARCH_ABI64) {
+ if (Is64Bit) {
big_size = st.nsyms;
big_size *= sizeof(struct MachO::nlist_64);
big_size += st.symoff;
@@ -1565,133 +3731,936 @@ static void PrintSymtabLoadCommand(MachO::symtab_command st, uint32_t cputype,
outs() << "\n";
}
-static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst,
- uint32_t nsyms, uint32_t object_size,
- uint32_t cputype) {
- outs() << " cmd LC_DYSYMTAB\n";
- outs() << " cmdsize " << dyst.cmdsize;
- if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command))
+static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst,
+ uint32_t nsyms, uint32_t object_size,
+ bool Is64Bit) {
+ outs() << " cmd LC_DYSYMTAB\n";
+ outs() << " cmdsize " << dyst.cmdsize;
+ if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " ilocalsym " << dyst.ilocalsym;
+ if (dyst.ilocalsym > nsyms)
+ outs() << " (greater than the number of symbols)\n";
+ else
+ outs() << "\n";
+ outs() << " nlocalsym " << dyst.nlocalsym;
+ uint64_t big_size;
+ big_size = dyst.ilocalsym;
+ big_size += dyst.nlocalsym;
+ if (big_size > nsyms)
+ outs() << " (past the end of the symbol table)\n";
+ else
+ outs() << "\n";
+ outs() << " iextdefsym " << dyst.iextdefsym;
+ if (dyst.iextdefsym > nsyms)
+ outs() << " (greater than the number of symbols)\n";
+ else
+ outs() << "\n";
+ outs() << " nextdefsym " << dyst.nextdefsym;
+ big_size = dyst.iextdefsym;
+ big_size += dyst.nextdefsym;
+ if (big_size > nsyms)
+ outs() << " (past the end of the symbol table)\n";
+ else
+ outs() << "\n";
+ outs() << " iundefsym " << dyst.iundefsym;
+ if (dyst.iundefsym > nsyms)
+ outs() << " (greater than the number of symbols)\n";
+ else
+ outs() << "\n";
+ outs() << " nundefsym " << dyst.nundefsym;
+ big_size = dyst.iundefsym;
+ big_size += dyst.nundefsym;
+ if (big_size > nsyms)
+ outs() << " (past the end of the symbol table)\n";
+ else
+ outs() << "\n";
+ outs() << " tocoff " << dyst.tocoff;
+ if (dyst.tocoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " ntoc " << dyst.ntoc;
+ big_size = dyst.ntoc;
+ big_size *= sizeof(struct MachO::dylib_table_of_contents);
+ big_size += dyst.tocoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " modtaboff " << dyst.modtaboff;
+ if (dyst.modtaboff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nmodtab " << dyst.nmodtab;
+ uint64_t modtabend;
+ if (Is64Bit) {
+ modtabend = dyst.nmodtab;
+ modtabend *= sizeof(struct MachO::dylib_module_64);
+ modtabend += dyst.modtaboff;
+ } else {
+ modtabend = dyst.nmodtab;
+ modtabend *= sizeof(struct MachO::dylib_module);
+ modtabend += dyst.modtaboff;
+ }
+ if (modtabend > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " extrefsymoff " << dyst.extrefsymoff;
+ if (dyst.extrefsymoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nextrefsyms " << dyst.nextrefsyms;
+ big_size = dyst.nextrefsyms;
+ big_size *= sizeof(struct MachO::dylib_reference);
+ big_size += dyst.extrefsymoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " indirectsymoff " << dyst.indirectsymoff;
+ if (dyst.indirectsymoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nindirectsyms " << dyst.nindirectsyms;
+ big_size = dyst.nindirectsyms;
+ big_size *= sizeof(uint32_t);
+ big_size += dyst.indirectsymoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " extreloff " << dyst.extreloff;
+ if (dyst.extreloff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nextrel " << dyst.nextrel;
+ big_size = dyst.nextrel;
+ big_size *= sizeof(struct MachO::relocation_info);
+ big_size += dyst.extreloff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " locreloff " << dyst.locreloff;
+ if (dyst.locreloff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nlocrel " << dyst.nlocrel;
+ big_size = dyst.nlocrel;
+ big_size *= sizeof(struct MachO::relocation_info);
+ big_size += dyst.locreloff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+}
+
+static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc,
+ uint32_t object_size) {
+ if (dc.cmd == MachO::LC_DYLD_INFO)
+ outs() << " cmd LC_DYLD_INFO\n";
+ else
+ outs() << " cmd LC_DYLD_INFO_ONLY\n";
+ outs() << " cmdsize " << dc.cmdsize;
+ if (dc.cmdsize != sizeof(struct MachO::dyld_info_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " rebase_off " << dc.rebase_off;
+ if (dc.rebase_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " rebase_size " << dc.rebase_size;
+ uint64_t big_size;
+ big_size = dc.rebase_off;
+ big_size += dc.rebase_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " bind_off " << dc.bind_off;
+ if (dc.bind_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " bind_size " << dc.bind_size;
+ big_size = dc.bind_off;
+ big_size += dc.bind_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " weak_bind_off " << dc.weak_bind_off;
+ if (dc.weak_bind_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " weak_bind_size " << dc.weak_bind_size;
+ big_size = dc.weak_bind_off;
+ big_size += dc.weak_bind_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " lazy_bind_off " << dc.lazy_bind_off;
+ if (dc.lazy_bind_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " lazy_bind_size " << dc.lazy_bind_size;
+ big_size = dc.lazy_bind_off;
+ big_size += dc.lazy_bind_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " export_off " << dc.export_off;
+ if (dc.export_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " export_size " << dc.export_size;
+ big_size = dc.export_off;
+ big_size += dc.export_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+}
+
+static void PrintDyldLoadCommand(MachO::dylinker_command dyld,
+ const char *Ptr) {
+ if (dyld.cmd == MachO::LC_ID_DYLINKER)
+ outs() << " cmd LC_ID_DYLINKER\n";
+ else if (dyld.cmd == MachO::LC_LOAD_DYLINKER)
+ outs() << " cmd LC_LOAD_DYLINKER\n";
+ else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT)
+ outs() << " cmd LC_DYLD_ENVIRONMENT\n";
+ else
+ outs() << " cmd ?(" << dyld.cmd << ")\n";
+ outs() << " cmdsize " << dyld.cmdsize;
+ if (dyld.cmdsize < sizeof(struct MachO::dylinker_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (dyld.name >= dyld.cmdsize)
+ outs() << " name ?(bad offset " << dyld.name << ")\n";
+ else {
+ const char *P = (const char *)(Ptr) + dyld.name;
+ outs() << " name " << P << " (offset " << dyld.name << ")\n";
+ }
+}
+
+static void PrintUuidLoadCommand(MachO::uuid_command uuid) {
+ outs() << " cmd LC_UUID\n";
+ outs() << " cmdsize " << uuid.cmdsize;
+ if (uuid.cmdsize != sizeof(struct MachO::uuid_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " uuid ";
+ 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]);
+ outs() << "\n";
+}
+
+static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) {
+ outs() << " cmd LC_RPATH\n";
+ outs() << " cmdsize " << rpath.cmdsize;
+ if (rpath.cmdsize < sizeof(struct MachO::rpath_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (rpath.path >= rpath.cmdsize)
+ outs() << " path ?(bad offset " << rpath.path << ")\n";
+ else {
+ const char *P = (const char *)(Ptr) + rpath.path;
+ outs() << " path " << P << " (offset " << rpath.path << ")\n";
+ }
+}
+
+static void PrintVersionMinLoadCommand(MachO::version_min_command vd) {
+ 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";
+ 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() << "\n";
+ if (vd.sdk == 0)
+ outs() << " sdk n/a";
+ else {
+ outs() << " sdk " << ((vd.sdk >> 16) & 0xffff) << "."
+ << ((vd.sdk >> 8) & 0xff);
+ }
+ if ((vd.sdk & 0xff) != 0)
+ outs() << "." << (vd.sdk & 0xff);
+ outs() << "\n";
+}
+
+static void PrintSourceVersionCommand(MachO::source_version_command sd) {
+ outs() << " cmd LC_SOURCE_VERSION\n";
+ outs() << " cmdsize " << sd.cmdsize;
+ if (sd.cmdsize != sizeof(struct MachO::source_version_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ uint64_t a = (sd.version >> 40) & 0xffffff;
+ uint64_t b = (sd.version >> 30) & 0x3ff;
+ uint64_t c = (sd.version >> 20) & 0x3ff;
+ uint64_t d = (sd.version >> 10) & 0x3ff;
+ uint64_t e = sd.version & 0x3ff;
+ outs() << " version " << a << "." << b;
+ if (e != 0)
+ outs() << "." << c << "." << d << "." << e;
+ else if (d != 0)
+ outs() << "." << c << "." << d;
+ else if (c != 0)
+ outs() << "." << c;
+ outs() << "\n";
+}
+
+static void PrintEntryPointCommand(MachO::entry_point_command ep) {
+ outs() << " cmd LC_MAIN\n";
+ outs() << " cmdsize " << ep.cmdsize;
+ if (ep.cmdsize != sizeof(struct MachO::entry_point_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " entryoff " << ep.entryoff << "\n";
+ outs() << " stacksize " << ep.stacksize << "\n";
+}
+
+static void PrintEncryptionInfoCommand(MachO::encryption_info_command ec,
+ uint32_t object_size) {
+ outs() << " cmd LC_ENCRYPTION_INFO\n";
+ outs() << " cmdsize " << ec.cmdsize;
+ if (ec.cmdsize != sizeof(struct MachO::encryption_info_command))
outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " ilocalsym " << dyst.ilocalsym;
- if (dyst.ilocalsym > nsyms)
- outs() << " (greater than the number of symbols)\n";
+ outs() << " cryptoff " << ec.cryptoff;
+ if (ec.cryptoff > object_size)
+ outs() << " (past end of file)\n";
else
outs() << "\n";
- outs() << " nlocalsym " << dyst.nlocalsym;
- uint64_t big_size;
- big_size = dyst.ilocalsym;
- big_size += dyst.nlocalsym;
- if (big_size > nsyms)
- outs() << " (past the end of the symbol table)\n";
+ outs() << " cryptsize " << ec.cryptsize;
+ if (ec.cryptsize > object_size)
+ outs() << " (past end of file)\n";
else
outs() << "\n";
- outs() << " iextdefsym " << dyst.iextdefsym;
- if (dyst.iextdefsym > nsyms)
- outs() << " (greater than the number of symbols)\n";
+ outs() << " cryptid " << ec.cryptid << "\n";
+}
+
+static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec,
+ uint32_t object_size) {
+ outs() << " cmd LC_ENCRYPTION_INFO_64\n";
+ outs() << " cmdsize " << ec.cmdsize;
+ if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " nextdefsym " << dyst.nextdefsym;
- big_size = dyst.iextdefsym;
- big_size += dyst.nextdefsym;
- if (big_size > nsyms)
- outs() << " (past the end of the symbol table)\n";
+ outs() << " cryptoff " << ec.cryptoff;
+ if (ec.cryptoff > object_size)
+ outs() << " (past end of file)\n";
else
outs() << "\n";
- outs() << " iundefsym " << dyst.iundefsym;
- if (dyst.iundefsym > nsyms)
- outs() << " (greater than the number of symbols)\n";
+ outs() << " cryptsize " << ec.cryptsize;
+ if (ec.cryptsize > object_size)
+ outs() << " (past end of file)\n";
else
outs() << "\n";
- outs() << " nundefsym " << dyst.nundefsym;
- big_size = dyst.iundefsym;
- big_size += dyst.nundefsym;
- if (big_size > nsyms)
- outs() << " (past the end of the symbol table)\n";
+ outs() << " cryptid " << ec.cryptid << "\n";
+ outs() << " pad " << ec.pad << "\n";
+}
+
+static void PrintLinkerOptionCommand(MachO::linker_option_command lo,
+ const char *Ptr) {
+ outs() << " cmd LC_LINKER_OPTION\n";
+ outs() << " cmdsize " << lo.cmdsize;
+ if (lo.cmdsize < sizeof(struct MachO::linker_option_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " tocoff " << dyst.tocoff;
- if (dyst.tocoff > object_size)
- outs() << " (past end of file)\n";
+ outs() << " count " << lo.count << "\n";
+ const char *string = Ptr + sizeof(struct MachO::linker_option_command);
+ uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command);
+ uint32_t i = 0;
+ while (left > 0) {
+ while (*string == '\0' && left > 0) {
+ string++;
+ left--;
+ }
+ if (left > 0) {
+ i++;
+ outs() << " string #" << i << " " << format("%.*s\n", left, string);
+ uint32_t NullPos = StringRef(string, left).find('\0');
+ uint32_t len = std::min(NullPos, left) + 1;
+ string += len;
+ left -= len;
+ }
+ }
+ if (lo.count != i)
+ outs() << " count " << lo.count << " does not match number of strings "
+ << i << "\n";
+}
+
+static void PrintSubFrameworkCommand(MachO::sub_framework_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_FRAMEWORK\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_framework_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " ntoc " << dyst.ntoc;
- big_size = dyst.ntoc;
- big_size *= sizeof(struct MachO::dylib_table_of_contents);
- big_size += dyst.tocoff;
- if (big_size > object_size)
- outs() << " (past end of file)\n";
+ if (sub.umbrella < sub.cmdsize) {
+ const char *P = Ptr + sub.umbrella;
+ outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n";
+ } else {
+ outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n";
+ }
+}
+
+static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_UMBRELLA\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " modtaboff " << dyst.modtaboff;
- if (dyst.modtaboff > object_size)
- outs() << " (past end of file)\n";
+ if (sub.sub_umbrella < sub.cmdsize) {
+ const char *P = Ptr + sub.sub_umbrella;
+ outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n";
+ } else {
+ outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n";
+ }
+}
+
+static void PrintSubLibraryCommand(MachO::sub_library_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_LIBRARY\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_library_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " nmodtab " << dyst.nmodtab;
- uint64_t modtabend;
- if (cputype & MachO::CPU_ARCH_ABI64) {
- modtabend = dyst.nmodtab;
- modtabend *= sizeof(struct MachO::dylib_module_64);
- modtabend += dyst.modtaboff;
+ if (sub.sub_library < sub.cmdsize) {
+ const char *P = Ptr + sub.sub_library;
+ outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n";
} else {
- modtabend = dyst.nmodtab;
- modtabend *= sizeof(struct MachO::dylib_module);
- modtabend += dyst.modtaboff;
+ outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n";
}
- if (modtabend > object_size)
- outs() << " (past end of file)\n";
+}
+
+static void PrintSubClientCommand(MachO::sub_client_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_CLIENT\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_client_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " extrefsymoff " << dyst.extrefsymoff;
- if (dyst.extrefsymoff > object_size)
- outs() << " (past end of file)\n";
+ if (sub.client < sub.cmdsize) {
+ const char *P = Ptr + sub.client;
+ outs() << " client " << P << " (offset " << sub.client << ")\n";
+ } else {
+ outs() << " client ?(bad offset " << sub.client << ")\n";
+ }
+}
+
+static void PrintRoutinesCommand(MachO::routines_command r) {
+ outs() << " cmd LC_ROUTINES\n";
+ outs() << " cmdsize " << r.cmdsize;
+ if (r.cmdsize != sizeof(struct MachO::routines_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " nextrefsyms " << dyst.nextrefsyms;
- big_size = dyst.nextrefsyms;
- big_size *= sizeof(struct MachO::dylib_reference);
- big_size += dyst.extrefsymoff;
- if (big_size > object_size)
- outs() << " (past end of file)\n";
+ outs() << " init_address " << format("0x%08" PRIx32, r.init_address) << "\n";
+ outs() << " init_module " << r.init_module << "\n";
+ outs() << " reserved1 " << r.reserved1 << "\n";
+ outs() << " reserved2 " << r.reserved2 << "\n";
+ outs() << " reserved3 " << r.reserved3 << "\n";
+ outs() << " reserved4 " << r.reserved4 << "\n";
+ outs() << " reserved5 " << r.reserved5 << "\n";
+ outs() << " reserved6 " << r.reserved6 << "\n";
+}
+
+static void PrintRoutinesCommand64(MachO::routines_command_64 r) {
+ outs() << " cmd LC_ROUTINES_64\n";
+ outs() << " cmdsize " << r.cmdsize;
+ if (r.cmdsize != sizeof(struct MachO::routines_command_64))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " indirectsymoff " << dyst.indirectsymoff;
- if (dyst.indirectsymoff > object_size)
- outs() << " (past end of file)\n";
+ outs() << " init_address " << format("0x%016" PRIx64, r.init_address) << "\n";
+ outs() << " init_module " << r.init_module << "\n";
+ outs() << " reserved1 " << r.reserved1 << "\n";
+ outs() << " reserved2 " << r.reserved2 << "\n";
+ outs() << " reserved3 " << r.reserved3 << "\n";
+ outs() << " reserved4 " << r.reserved4 << "\n";
+ outs() << " reserved5 " << r.reserved5 << "\n";
+ outs() << " reserved6 " << r.reserved6 << "\n";
+}
+
+static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) {
+ outs() << " rax " << format("0x%016" PRIx64, cpu64.rax);
+ outs() << " rbx " << format("0x%016" PRIx64, cpu64.rbx);
+ outs() << " rcx " << format("0x%016" PRIx64, cpu64.rcx) << "\n";
+ outs() << " rdx " << format("0x%016" PRIx64, cpu64.rdx);
+ outs() << " rdi " << format("0x%016" PRIx64, cpu64.rdi);
+ outs() << " rsi " << format("0x%016" PRIx64, cpu64.rsi) << "\n";
+ outs() << " rbp " << format("0x%016" PRIx64, cpu64.rbp);
+ outs() << " rsp " << format("0x%016" PRIx64, cpu64.rsp);
+ outs() << " r8 " << format("0x%016" PRIx64, cpu64.r8) << "\n";
+ outs() << " r9 " << format("0x%016" PRIx64, cpu64.r9);
+ outs() << " r10 " << format("0x%016" PRIx64, cpu64.r10);
+ outs() << " r11 " << format("0x%016" PRIx64, cpu64.r11) << "\n";
+ outs() << " r12 " << format("0x%016" PRIx64, cpu64.r12);
+ outs() << " r13 " << format("0x%016" PRIx64, cpu64.r13);
+ outs() << " r14 " << format("0x%016" PRIx64, cpu64.r14) << "\n";
+ outs() << " r15 " << format("0x%016" PRIx64, cpu64.r15);
+ outs() << " rip " << format("0x%016" PRIx64, cpu64.rip) << "\n";
+ outs() << "rflags " << format("0x%016" PRIx64, cpu64.rflags);
+ outs() << " cs " << format("0x%016" PRIx64, cpu64.cs);
+ outs() << " fs " << format("0x%016" PRIx64, cpu64.fs) << "\n";
+ outs() << " gs " << format("0x%016" PRIx64, cpu64.gs) << "\n";
+}
+
+static void Print_mmst_reg(MachO::mmst_reg_t &r) {
+ uint32_t f;
+ outs() << "\t mmst_reg ";
+ for (f = 0; f < 10; f++)
+ outs() << format("%02" PRIx32, (r.mmst_reg[f] & 0xff)) << " ";
+ outs() << "\n";
+ outs() << "\t mmst_rsrv ";
+ for (f = 0; f < 6; f++)
+ outs() << format("%02" PRIx32, (r.mmst_rsrv[f] & 0xff)) << " ";
+ outs() << "\n";
+}
+
+static void Print_xmm_reg(MachO::xmm_reg_t &r) {
+ uint32_t f;
+ outs() << "\t xmm_reg ";
+ for (f = 0; f < 16; f++)
+ outs() << format("%02" PRIx32, (r.xmm_reg[f] & 0xff)) << " ";
+ outs() << "\n";
+}
+
+static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) {
+ outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0];
+ outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n";
+ outs() << "\t control: invalid " << fpu.fpu_fcw.invalid;
+ outs() << " denorm " << fpu.fpu_fcw.denorm;
+ outs() << " zdiv " << fpu.fpu_fcw.zdiv;
+ outs() << " ovrfl " << fpu.fpu_fcw.ovrfl;
+ outs() << " undfl " << fpu.fpu_fcw.undfl;
+ outs() << " precis " << fpu.fpu_fcw.precis << "\n";
+ outs() << "\t\t pc ";
+ if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B)
+ outs() << "FP_PREC_24B ";
+ else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B)
+ outs() << "FP_PREC_53B ";
+ else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B)
+ outs() << "FP_PREC_64B ";
else
+ outs() << fpu.fpu_fcw.pc << " ";
+ outs() << "rc ";
+ if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR)
+ outs() << "FP_RND_NEAR ";
+ else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN)
+ outs() << "FP_RND_DOWN ";
+ else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP)
+ outs() << "FP_RND_UP ";
+ else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP)
+ outs() << "FP_CHOP ";
+ outs() << "\n";
+ outs() << "\t status: invalid " << fpu.fpu_fsw.invalid;
+ outs() << " denorm " << fpu.fpu_fsw.denorm;
+ outs() << " zdiv " << fpu.fpu_fsw.zdiv;
+ outs() << " ovrfl " << fpu.fpu_fsw.ovrfl;
+ outs() << " undfl " << fpu.fpu_fsw.undfl;
+ outs() << " precis " << fpu.fpu_fsw.precis;
+ outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n";
+ outs() << "\t errsumm " << fpu.fpu_fsw.errsumm;
+ outs() << " c0 " << fpu.fpu_fsw.c0;
+ outs() << " c1 " << fpu.fpu_fsw.c1;
+ outs() << " c2 " << fpu.fpu_fsw.c2;
+ outs() << " tos " << fpu.fpu_fsw.tos;
+ outs() << " c3 " << fpu.fpu_fsw.c3;
+ outs() << " busy " << fpu.fpu_fsw.busy << "\n";
+ outs() << "\t fpu_ftw " << format("0x%02" PRIx32, fpu.fpu_ftw);
+ outs() << " fpu_rsrv1 " << format("0x%02" PRIx32, fpu.fpu_rsrv1);
+ outs() << " fpu_fop " << format("0x%04" PRIx32, fpu.fpu_fop);
+ outs() << " fpu_ip " << format("0x%08" PRIx32, fpu.fpu_ip) << "\n";
+ outs() << "\t fpu_cs " << format("0x%04" PRIx32, fpu.fpu_cs);
+ outs() << " fpu_rsrv2 " << format("0x%04" PRIx32, fpu.fpu_rsrv2);
+ outs() << " fpu_dp " << format("0x%08" PRIx32, fpu.fpu_dp);
+ outs() << " fpu_ds " << format("0x%04" PRIx32, fpu.fpu_ds) << "\n";
+ outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32, fpu.fpu_rsrv3);
+ outs() << " fpu_mxcsr " << format("0x%08" PRIx32, fpu.fpu_mxcsr);
+ outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32, fpu.fpu_mxcsrmask);
+ outs() << "\n";
+ outs() << "\t fpu_stmm0:\n";
+ Print_mmst_reg(fpu.fpu_stmm0);
+ outs() << "\t fpu_stmm1:\n";
+ Print_mmst_reg(fpu.fpu_stmm1);
+ outs() << "\t fpu_stmm2:\n";
+ Print_mmst_reg(fpu.fpu_stmm2);
+ outs() << "\t fpu_stmm3:\n";
+ Print_mmst_reg(fpu.fpu_stmm3);
+ outs() << "\t fpu_stmm4:\n";
+ Print_mmst_reg(fpu.fpu_stmm4);
+ outs() << "\t fpu_stmm5:\n";
+ Print_mmst_reg(fpu.fpu_stmm5);
+ outs() << "\t fpu_stmm6:\n";
+ Print_mmst_reg(fpu.fpu_stmm6);
+ outs() << "\t fpu_stmm7:\n";
+ Print_mmst_reg(fpu.fpu_stmm7);
+ outs() << "\t fpu_xmm0:\n";
+ Print_xmm_reg(fpu.fpu_xmm0);
+ outs() << "\t fpu_xmm1:\n";
+ Print_xmm_reg(fpu.fpu_xmm1);
+ outs() << "\t fpu_xmm2:\n";
+ Print_xmm_reg(fpu.fpu_xmm2);
+ outs() << "\t fpu_xmm3:\n";
+ Print_xmm_reg(fpu.fpu_xmm3);
+ outs() << "\t fpu_xmm4:\n";
+ Print_xmm_reg(fpu.fpu_xmm4);
+ outs() << "\t fpu_xmm5:\n";
+ Print_xmm_reg(fpu.fpu_xmm5);
+ outs() << "\t fpu_xmm6:\n";
+ Print_xmm_reg(fpu.fpu_xmm6);
+ outs() << "\t fpu_xmm7:\n";
+ Print_xmm_reg(fpu.fpu_xmm7);
+ outs() << "\t fpu_xmm8:\n";
+ Print_xmm_reg(fpu.fpu_xmm8);
+ outs() << "\t fpu_xmm9:\n";
+ Print_xmm_reg(fpu.fpu_xmm9);
+ outs() << "\t fpu_xmm10:\n";
+ Print_xmm_reg(fpu.fpu_xmm10);
+ outs() << "\t fpu_xmm11:\n";
+ Print_xmm_reg(fpu.fpu_xmm11);
+ outs() << "\t fpu_xmm12:\n";
+ Print_xmm_reg(fpu.fpu_xmm12);
+ outs() << "\t fpu_xmm13:\n";
+ Print_xmm_reg(fpu.fpu_xmm13);
+ outs() << "\t fpu_xmm14:\n";
+ Print_xmm_reg(fpu.fpu_xmm14);
+ outs() << "\t fpu_xmm15:\n";
+ Print_xmm_reg(fpu.fpu_xmm15);
+ outs() << "\t fpu_rsrv4:\n";
+ for (uint32_t f = 0; f < 6; f++) {
+ outs() << "\t ";
+ for (uint32_t g = 0; g < 16; g++)
+ outs() << format("%02" PRIx32, fpu.fpu_rsrv4[f * g]) << " ";
outs() << "\n";
- outs() << " nindirectsyms " << dyst.nindirectsyms;
- big_size = dyst.nindirectsyms;
- big_size *= sizeof(uint32_t);
- big_size += dyst.indirectsymoff;
- if (big_size > object_size)
- outs() << " (past end of file)\n";
+ }
+ outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32, fpu.fpu_reserved1);
+ outs() << "\n";
+}
+
+static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) {
+ outs() << "\t trapno " << format("0x%08" PRIx32, exc64.trapno);
+ outs() << " err " << format("0x%08" PRIx32, exc64.err);
+ outs() << " faultvaddr " << format("0x%016" PRIx64, exc64.faultvaddr) << "\n";
+}
+
+static void PrintThreadCommand(MachO::thread_command t, const char *Ptr,
+ bool isLittleEndian, uint32_t cputype) {
+ if (t.cmd == MachO::LC_THREAD)
+ outs() << " cmd LC_THREAD\n";
+ else if (t.cmd == MachO::LC_UNIXTHREAD)
+ outs() << " cmd LC_UNIXTHREAD\n";
+ else
+ outs() << " cmd " << t.cmd << " (unknown)\n";
+ outs() << " cmdsize " << t.cmdsize;
+ if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " extreloff " << dyst.extreloff;
- if (dyst.extreloff > object_size)
- outs() << " (past end of file)\n";
+
+ const char *begin = Ptr + sizeof(struct MachO::thread_command);
+ const char *end = Ptr + t.cmdsize;
+ uint32_t flavor, count, left;
+ if (cputype == MachO::CPU_TYPE_X86_64) {
+ while (begin < end) {
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&flavor, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ flavor = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(flavor);
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&count, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ count = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(count);
+ if (flavor == MachO::x86_THREAD_STATE64) {
+ outs() << " flavor x86_THREAD_STATE64\n";
+ if (count == MachO::x86_THREAD_STATE64_COUNT)
+ outs() << " count x86_THREAD_STATE64_COUNT\n";
+ else
+ outs() << " count " << count
+ << " (not x86_THREAD_STATE64_COUNT)\n";
+ MachO::x86_thread_state64_t cpu64;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_thread_state64_t)) {
+ memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t));
+ begin += sizeof(MachO::x86_thread_state64_t);
+ } else {
+ memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t));
+ memcpy(&cpu64, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(cpu64);
+ Print_x86_thread_state64_t(cpu64);
+ } else if (flavor == MachO::x86_THREAD_STATE) {
+ outs() << " flavor x86_THREAD_STATE\n";
+ if (count == MachO::x86_THREAD_STATE_COUNT)
+ outs() << " count x86_THREAD_STATE_COUNT\n";
+ else
+ outs() << " count " << count
+ << " (not x86_THREAD_STATE_COUNT)\n";
+ struct MachO::x86_thread_state_t ts;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_thread_state_t)) {
+ memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t));
+ begin += sizeof(MachO::x86_thread_state_t);
+ } else {
+ memset(&ts, '\0', sizeof(MachO::x86_thread_state_t));
+ memcpy(&ts, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(ts);
+ if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) {
+ outs() << "\t tsh.flavor x86_THREAD_STATE64 ";
+ if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT)
+ outs() << "tsh.count x86_THREAD_STATE64_COUNT\n";
+ else
+ outs() << "tsh.count " << ts.tsh.count
+ << " (not x86_THREAD_STATE64_COUNT\n";
+ Print_x86_thread_state64_t(ts.uts.ts64);
+ } else {
+ outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count "
+ << ts.tsh.count << "\n";
+ }
+ } else if (flavor == MachO::x86_FLOAT_STATE) {
+ outs() << " flavor x86_FLOAT_STATE\n";
+ if (count == MachO::x86_FLOAT_STATE_COUNT)
+ outs() << " count x86_FLOAT_STATE_COUNT\n";
+ else
+ outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n";
+ struct MachO::x86_float_state_t fs;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_float_state_t)) {
+ memcpy(&fs, begin, sizeof(MachO::x86_float_state_t));
+ begin += sizeof(MachO::x86_float_state_t);
+ } else {
+ memset(&fs, '\0', sizeof(MachO::x86_float_state_t));
+ memcpy(&fs, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(fs);
+ if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) {
+ outs() << "\t fsh.flavor x86_FLOAT_STATE64 ";
+ if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT)
+ outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n";
+ else
+ outs() << "fsh.count " << fs.fsh.count
+ << " (not x86_FLOAT_STATE64_COUNT\n";
+ Print_x86_float_state_t(fs.ufs.fs64);
+ } else {
+ outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count "
+ << fs.fsh.count << "\n";
+ }
+ } else if (flavor == MachO::x86_EXCEPTION_STATE) {
+ outs() << " flavor x86_EXCEPTION_STATE\n";
+ if (count == MachO::x86_EXCEPTION_STATE_COUNT)
+ outs() << " count x86_EXCEPTION_STATE_COUNT\n";
+ else
+ outs() << " count " << count
+ << " (not x86_EXCEPTION_STATE_COUNT)\n";
+ struct MachO::x86_exception_state_t es;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_exception_state_t)) {
+ memcpy(&es, begin, sizeof(MachO::x86_exception_state_t));
+ begin += sizeof(MachO::x86_exception_state_t);
+ } else {
+ memset(&es, '\0', sizeof(MachO::x86_exception_state_t));
+ memcpy(&es, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(es);
+ if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) {
+ outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n";
+ if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT)
+ outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n";
+ else
+ outs() << "\t esh.count " << es.esh.count
+ << " (not x86_EXCEPTION_STATE64_COUNT\n";
+ Print_x86_exception_state_t(es.ues.es64);
+ } else {
+ outs() << "\t esh.flavor " << es.esh.flavor << " esh.count "
+ << es.esh.count << "\n";
+ }
+ } else {
+ outs() << " flavor " << flavor << " (unknown)\n";
+ outs() << " count " << count << "\n";
+ outs() << " state (unknown)\n";
+ begin += count * sizeof(uint32_t);
+ }
+ }
+ } else {
+ while (begin < end) {
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&flavor, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ flavor = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(flavor);
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&count, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ count = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(count);
+ outs() << " flavor " << flavor << "\n";
+ outs() << " count " << count << "\n";
+ outs() << " state (Unknown cputype/cpusubtype)\n";
+ begin += count * sizeof(uint32_t);
+ }
+ }
+}
+
+static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) {
+ if (dl.cmd == MachO::LC_ID_DYLIB)
+ outs() << " cmd LC_ID_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LOAD_DYLIB)
+ outs() << " cmd LC_LOAD_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB)
+ outs() << " cmd LC_LOAD_WEAK_DYLIB\n";
+ else if (dl.cmd == MachO::LC_REEXPORT_DYLIB)
+ outs() << " cmd LC_REEXPORT_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB)
+ outs() << " cmd LC_LAZY_LOAD_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
+ outs() << " cmd LC_LOAD_UPWARD_DYLIB\n";
+ else
+ outs() << " cmd " << dl.cmd << " (unknown)\n";
+ outs() << " cmdsize " << dl.cmdsize;
+ if (dl.cmdsize < sizeof(struct MachO::dylib_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " nextrel " << dyst.nextrel;
- big_size = dyst.nextrel;
- big_size *= sizeof(struct MachO::relocation_info);
- big_size += dyst.extreloff;
- if (big_size > object_size)
- outs() << " (past end of file)\n";
+ if (dl.dylib.name < dl.cmdsize) {
+ const char *P = (const char *)(Ptr) + dl.dylib.name;
+ outs() << " name " << P << " (offset " << dl.dylib.name << ")\n";
+ } else {
+ outs() << " name ?(bad offset " << dl.dylib.name << ")\n";
+ }
+ outs() << " time stamp " << dl.dylib.timestamp << " ";
+ time_t t = dl.dylib.timestamp;
+ outs() << ctime(&t);
+ outs() << " current version ";
+ if (dl.dylib.current_version == 0xffffffff)
+ outs() << "n/a\n";
+ else
+ outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.current_version >> 8) & 0xff) << "."
+ << (dl.dylib.current_version & 0xff) << "\n";
+ outs() << "compatibility version ";
+ if (dl.dylib.compatibility_version == 0xffffffff)
+ outs() << "n/a\n";
+ else
+ outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.compatibility_version >> 8) & 0xff) << "."
+ << (dl.dylib.compatibility_version & 0xff) << "\n";
+}
+
+static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld,
+ uint32_t object_size) {
+ if (ld.cmd == MachO::LC_CODE_SIGNATURE)
+ outs() << " cmd LC_FUNCTION_STARTS\n";
+ else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO)
+ outs() << " cmd LC_SEGMENT_SPLIT_INFO\n";
+ else if (ld.cmd == MachO::LC_FUNCTION_STARTS)
+ outs() << " cmd LC_FUNCTION_STARTS\n";
+ else if (ld.cmd == MachO::LC_DATA_IN_CODE)
+ outs() << " cmd LC_DATA_IN_CODE\n";
+ else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS)
+ outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n";
+ else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT)
+ outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n";
+ else
+ outs() << " cmd " << ld.cmd << " (?)\n";
+ outs() << " cmdsize " << ld.cmdsize;
+ if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command))
+ outs() << " Incorrect size\n";
else
outs() << "\n";
- outs() << " locreloff " << dyst.locreloff;
- if (dyst.locreloff > object_size)
+ outs() << " dataoff " << ld.dataoff;
+ if (ld.dataoff > object_size)
outs() << " (past end of file)\n";
else
outs() << "\n";
- outs() << " nlocrel " << dyst.nlocrel;
- big_size = dyst.nlocrel;
- big_size *= sizeof(struct MachO::relocation_info);
- big_size += dyst.locreloff;
+ outs() << " datasize " << ld.datasize;
+ uint64_t big_size = ld.dataoff;
+ big_size += ld.datasize;
if (big_size > object_size)
outs() << " (past end of file)\n";
else
static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t ncmds,
uint32_t filetype, uint32_t cputype,
bool verbose) {
+ if (ncmds == 0)
+ return;
StringRef Buf = Obj->getData();
MachOObjectFile::LoadCommandInfo Command = Obj->getFirstLoadCommandInfo();
for (unsigned i = 0;; ++i) {
SLC.initprot, SLC.nsects, SLC.flags, Buf.size(),
verbose);
for (unsigned j = 0; j < SLC.nsects; j++) {
- MachO::section_64 S = Obj->getSection64(Command, j);
+ MachO::section S = Obj->getSection(Command, j);
PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align,
S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2,
SLC.cmd, sg_segname, filetype, Buf.size(), verbose);
}
} else if (Command.C.cmd == MachO::LC_SYMTAB) {
MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
- PrintSymtabLoadCommand(Symtab, cputype, Buf.size());
+ PrintSymtabLoadCommand(Symtab, Obj->is64Bit(), Buf.size());
} else if (Command.C.cmd == MachO::LC_DYSYMTAB) {
MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand();
MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
- PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(), cputype);
+ PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(),
+ Obj->is64Bit());
+ } else if (Command.C.cmd == MachO::LC_DYLD_INFO ||
+ Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) {
+ MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command);
+ PrintDyldInfoLoadCommand(DyldInfo, Buf.size());
+ } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER ||
+ Command.C.cmd == MachO::LC_ID_DYLINKER ||
+ Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) {
+ MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command);
+ PrintDyldLoadCommand(Dyld, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_UUID) {
+ MachO::uuid_command Uuid = Obj->getUuidCommand(Command);
+ PrintUuidLoadCommand(Uuid);
+ } else if (Command.C.cmd == MachO::LC_RPATH) {
+ MachO::rpath_command Rpath = Obj->getRpathCommand(Command);
+ PrintRpathLoadCommand(Rpath, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX ||
+ Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS) {
+ MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command);
+ PrintVersionMinLoadCommand(Vd);
+ } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) {
+ MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command);
+ PrintSourceVersionCommand(Sd);
+ } else if (Command.C.cmd == MachO::LC_MAIN) {
+ MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command);
+ PrintEntryPointCommand(Ep);
+ } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO) {
+ MachO::encryption_info_command Ei =
+ Obj->getEncryptionInfoCommand(Command);
+ PrintEncryptionInfoCommand(Ei, Buf.size());
+ } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) {
+ MachO::encryption_info_command_64 Ei =
+ Obj->getEncryptionInfoCommand64(Command);
+ PrintEncryptionInfoCommand64(Ei, Buf.size());
+ } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) {
+ MachO::linker_option_command Lo =
+ Obj->getLinkerOptionLoadCommand(Command);
+ PrintLinkerOptionCommand(Lo, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) {
+ MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command);
+ PrintSubFrameworkCommand(Sf, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) {
+ MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command);
+ PrintSubUmbrellaCommand(Sf, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) {
+ MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command);
+ PrintSubLibraryCommand(Sl, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) {
+ MachO::sub_client_command Sc = Obj->getSubClientCommand(Command);
+ PrintSubClientCommand(Sc, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_ROUTINES) {
+ MachO::routines_command Rc = Obj->getRoutinesCommand(Command);
+ PrintRoutinesCommand(Rc);
+ } else if (Command.C.cmd == MachO::LC_ROUTINES_64) {
+ MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command);
+ PrintRoutinesCommand64(Rc);
+ } else if (Command.C.cmd == MachO::LC_THREAD ||
+ Command.C.cmd == MachO::LC_UNIXTHREAD) {
+ MachO::thread_command Tc = Obj->getThreadCommand(Command);
+ PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype);
+ } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB ||
+ Command.C.cmd == MachO::LC_ID_DYLIB ||
+ Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB ||
+ Command.C.cmd == MachO::LC_REEXPORT_DYLIB ||
+ Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB ||
+ Command.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) {
+ MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command);
+ PrintDylibCommand(Dl, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE ||
+ Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO ||
+ Command.C.cmd == MachO::LC_FUNCTION_STARTS ||
+ Command.C.cmd == MachO::LC_DATA_IN_CODE ||
+ Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS ||
+ Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) {
+ MachO::linkedit_data_command Ld =
+ Obj->getLinkeditDataLoadCommand(Command);
+ PrintLinkEditDataCommand(Ld, Buf.size());
} else {
outs() << " cmd ?(" << format("0x%08" PRIx32, Command.C.cmd)
<< ")\n";
//===----------------------------------------------------------------------===//
void llvm::printMachOExportsTrie(const object::MachOObjectFile *Obj) {
- for (const llvm::object::ExportEntry &entry : Obj->exports()) {
- uint64_t Flags = entry.flags();
+ for (const llvm::object::ExportEntry &Entry : Obj->exports()) {
+ uint64_t Flags = Entry.flags();
bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT);
bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION);
bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) ==
if (ReExport)
outs() << "[re-export] ";
else
- outs()
- << format("0x%08llX ", entry.address()); // FIXME:add in base address
- outs() << entry.name();
+ outs() << format("0x%08llX ",
+ Entry.address()); // FIXME:add in base address
+ outs() << Entry.name();
if (WeakDef || ThreadLocal || Resolver || Abs) {
- bool needComma = false;
- printf(" [");
+ bool NeedsComma = false;
+ outs() << " [";
if (WeakDef) {
outs() << "weak_def";
- needComma = true;
+ NeedsComma = true;
}
if (ThreadLocal) {
- if (needComma)
+ if (NeedsComma)
outs() << ", ";
outs() << "per-thread";
- needComma = true;
+ NeedsComma = true;
}
if (Abs) {
- if (needComma)
+ if (NeedsComma)
outs() << ", ";
outs() << "absolute";
- needComma = true;
+ NeedsComma = true;
}
if (Resolver) {
- if (needComma)
+ if (NeedsComma)
outs() << ", ";
- outs() << format("resolver=0x%08llX", entry.other());
- needComma = true;
+ outs() << format("resolver=0x%08llX", Entry.other());
+ NeedsComma = true;
}
outs() << "]";
}
if (ReExport) {
StringRef DylibName = "unknown";
- int ordinal = entry.other() - 1;
- Obj->getLibraryShortNameByIndex(ordinal, DylibName);
- if (entry.otherName().empty())
+ int Ordinal = Entry.other() - 1;
+ Obj->getLibraryShortNameByIndex(Ordinal, DylibName);
+ if (Entry.otherName().empty())
outs() << " (from " << DylibName << ")";
else
- outs() << " (" << entry.otherName() << " from " << DylibName << ")";
+ outs() << " (" << Entry.otherName() << " from " << DylibName << ")";
}
outs() << "\n";
}
}
+
+//===----------------------------------------------------------------------===//
+// rebase table dumping
+//===----------------------------------------------------------------------===//
+
+namespace {
+class SegInfo {
+public:
+ SegInfo(const object::MachOObjectFile *Obj);
+
+ StringRef segmentName(uint32_t SegIndex);
+ StringRef sectionName(uint32_t SegIndex, uint64_t SegOffset);
+ uint64_t address(uint32_t SegIndex, uint64_t SegOffset);
+
+private:
+ struct SectionInfo {
+ uint64_t Address;
+ uint64_t Size;
+ StringRef SectionName;
+ StringRef SegmentName;
+ uint64_t OffsetInSegment;
+ uint64_t SegmentStartAddress;
+ uint32_t SegmentIndex;
+ };
+ const SectionInfo &findSection(uint32_t SegIndex, uint64_t SegOffset);
+ SmallVector<SectionInfo, 32> Sections;
+};
+}
+
+SegInfo::SegInfo(const object::MachOObjectFile *Obj) {
+ // Build table of sections so segIndex/offset pairs can be translated.
+ uint32_t CurSegIndex = Obj->hasPageZeroSegment() ? 1 : 0;
+ StringRef CurSegName;
+ uint64_t CurSegAddress;
+ for (const SectionRef &Section : Obj->sections()) {
+ SectionInfo Info;
+ if (error(Section.getName(Info.SectionName)))
+ return;
+ Info.Address = Section.getAddress();
+ Info.Size = Section.getSize();
+ Info.SegmentName =
+ Obj->getSectionFinalSegmentName(Section.getRawDataRefImpl());
+ if (!Info.SegmentName.equals(CurSegName)) {
+ ++CurSegIndex;
+ CurSegName = Info.SegmentName;
+ CurSegAddress = Info.Address;
+ }
+ Info.SegmentIndex = CurSegIndex - 1;
+ Info.OffsetInSegment = Info.Address - CurSegAddress;
+ Info.SegmentStartAddress = CurSegAddress;
+ Sections.push_back(Info);
+ }
+}
+
+StringRef SegInfo::segmentName(uint32_t SegIndex) {
+ for (const SectionInfo &SI : Sections) {
+ if (SI.SegmentIndex == SegIndex)
+ return SI.SegmentName;
+ }
+ llvm_unreachable("invalid segIndex");
+}
+
+const SegInfo::SectionInfo &SegInfo::findSection(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 SI;
+ }
+ llvm_unreachable("segIndex and offset not in any section");
+}
+
+StringRef SegInfo::sectionName(uint32_t SegIndex, uint64_t OffsetInSeg) {
+ return findSection(SegIndex, OffsetInSeg).SectionName;
+}
+
+uint64_t SegInfo::address(uint32_t SegIndex, uint64_t OffsetInSeg) {
+ const SectionInfo &SI = findSection(SegIndex, OffsetInSeg);
+ return SI.SegmentStartAddress + OffsetInSeg;
+}
+
+void llvm::printMachORebaseTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address type\n";
+ for (const llvm::object::MachORebaseEntry &Entry : Obj->rebaseTable()) {
+ uint32_t SegIndex = Entry.segmentIndex();
+ uint64_t OffsetInSeg = Entry.segmentOffset();
+ StringRef SegmentName = sectionTable.segmentName(SegIndex);
+ StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
+ uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
+
+ // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer
+ outs() << format("%-8s %-18s 0x%08" PRIX64 " %s\n",
+ SegmentName.str().c_str(), SectionName.str().c_str(),
+ Address, Entry.typeName().str().c_str());
+ }
+}
+
+static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) {
+ StringRef DylibName;
+ switch (Ordinal) {
+ case MachO::BIND_SPECIAL_DYLIB_SELF:
+ return "this-image";
+ case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE:
+ return "main-executable";
+ case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP:
+ return "flat-namespace";
+ default:
+ if (Ordinal > 0) {
+ std::error_code EC =
+ Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName);
+ if (EC)
+ return "<<bad library ordinal>>";
+ return DylibName;
+ }
+ }
+ return "<<unknown special ordinal>>";
+}
+
+//===----------------------------------------------------------------------===//
+// bind table dumping
+//===----------------------------------------------------------------------===//
+
+void llvm::printMachOBindTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address type "
+ "addend dylib symbol\n";
+ for (const llvm::object::MachOBindEntry &Entry : Obj->bindTable()) {
+ uint32_t SegIndex = Entry.segmentIndex();
+ uint64_t OffsetInSeg = Entry.segmentOffset();
+ StringRef SegmentName = sectionTable.segmentName(SegIndex);
+ StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
+ uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
+
+ // Table lines look like:
+ // __DATA __got 0x00012010 pointer 0 libSystem ___stack_chk_guard
+ StringRef Attr;
+ if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT)
+ Attr = " (weak_import)";
+ outs() << left_justify(SegmentName, 8) << " "
+ << left_justify(SectionName, 18) << " "
+ << format_hex(Address, 10, true) << " "
+ << left_justify(Entry.typeName(), 8) << " "
+ << format_decimal(Entry.addend(), 8) << " "
+ << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
+ << Entry.symbolName() << Attr << "\n";
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// lazy bind table dumping
+//===----------------------------------------------------------------------===//
+
+void llvm::printMachOLazyBindTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address "
+ "dylib symbol\n";
+ for (const llvm::object::MachOBindEntry &Entry : Obj->lazyBindTable()) {
+ uint32_t SegIndex = Entry.segmentIndex();
+ uint64_t OffsetInSeg = Entry.segmentOffset();
+ StringRef SegmentName = sectionTable.segmentName(SegIndex);
+ StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
+ uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
+
+ // Table lines look like:
+ // __DATA __got 0x00012010 libSystem ___stack_chk_guard
+ outs() << left_justify(SegmentName, 8) << " "
+ << left_justify(SectionName, 18) << " "
+ << format_hex(Address, 10, true) << " "
+ << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
+ << Entry.symbolName() << "\n";
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// weak bind table dumping
+//===----------------------------------------------------------------------===//
+
+void llvm::printMachOWeakBindTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address "
+ "type addend symbol\n";
+ for (const llvm::object::MachOBindEntry &Entry : Obj->weakBindTable()) {
+ // Strong symbols don't have a location to update.
+ if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) {
+ outs() << " strong "
+ << Entry.symbolName() << "\n";
+ continue;
+ }
+ uint32_t SegIndex = Entry.segmentIndex();
+ uint64_t OffsetInSeg = Entry.segmentOffset();
+ StringRef SegmentName = sectionTable.segmentName(SegIndex);
+ StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
+ uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
+
+ // Table lines look like:
+ // __DATA __data 0x00001000 pointer 0 _foo
+ outs() << left_justify(SegmentName, 8) << " "
+ << left_justify(SectionName, 18) << " "
+ << format_hex(Address, 10, true) << " "
+ << left_justify(Entry.typeName(), 8) << " "
+ << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName()
+ << "\n";
+ }
+}
+
+// get_dyld_bind_info_symbolname() is used for disassembly and passed an
+// address, ReferenceValue, in the Mach-O file and looks in the dyld bind
+// information for that address. If the address is found its binding symbol
+// name is returned. If not nullptr is returned.
+static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
+ struct DisassembleInfo *info) {
+ if (info->bindtable == nullptr) {
+ info->bindtable = new (BindTable);
+ SegInfo sectionTable(info->O);
+ for (const llvm::object::MachOBindEntry &Entry : info->O->bindTable()) {
+ uint32_t SegIndex = Entry.segmentIndex();
+ uint64_t OffsetInSeg = Entry.segmentOffset();
+ uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
+ const char *SymbolName = nullptr;
+ StringRef name = Entry.symbolName();
+ if (!name.empty())
+ SymbolName = name.data();
+ info->bindtable->push_back(std::make_pair(Address, SymbolName));
+ }
+ }
+ for (bind_table_iterator BI = info->bindtable->begin(),
+ BE = info->bindtable->end();
+ BI != BE; ++BI) {
+ uint64_t Address = BI->first;
+ if (ReferenceValue == Address) {
+ const char *SymbolName = BI->second;
+ return SymbolName;
+ }
+ }
+ return nullptr;
+}