1 //===-- llvm-objdump.cpp - Object file dumping utility for llvm -----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This program is a utility that works like binutils "objdump", that is, it
11 // dumps out a plethora of information about an object file depending on the
14 // The flags and output of this program should be near identical to those of
17 //===----------------------------------------------------------------------===//
19 #include "llvm-objdump.h"
20 #include "llvm/ADT/Optional.h"
21 #include "llvm/ADT/STLExtras.h"
22 #include "llvm/ADT/StringExtras.h"
23 #include "llvm/ADT/Triple.h"
24 #include "llvm/CodeGen/FaultMaps.h"
25 #include "llvm/MC/MCAsmInfo.h"
26 #include "llvm/MC/MCContext.h"
27 #include "llvm/MC/MCDisassembler.h"
28 #include "llvm/MC/MCInst.h"
29 #include "llvm/MC/MCInstPrinter.h"
30 #include "llvm/MC/MCInstrAnalysis.h"
31 #include "llvm/MC/MCInstrInfo.h"
32 #include "llvm/MC/MCObjectFileInfo.h"
33 #include "llvm/MC/MCRegisterInfo.h"
34 #include "llvm/MC/MCRelocationInfo.h"
35 #include "llvm/MC/MCSubtargetInfo.h"
36 #include "llvm/Object/Archive.h"
37 #include "llvm/Object/ELFObjectFile.h"
38 #include "llvm/Object/COFF.h"
39 #include "llvm/Object/MachO.h"
40 #include "llvm/Object/ObjectFile.h"
41 #include "llvm/Support/Casting.h"
42 #include "llvm/Support/CommandLine.h"
43 #include "llvm/Support/Debug.h"
44 #include "llvm/Support/Errc.h"
45 #include "llvm/Support/FileSystem.h"
46 #include "llvm/Support/Format.h"
47 #include "llvm/Support/GraphWriter.h"
48 #include "llvm/Support/Host.h"
49 #include "llvm/Support/ManagedStatic.h"
50 #include "llvm/Support/MemoryBuffer.h"
51 #include "llvm/Support/PrettyStackTrace.h"
52 #include "llvm/Support/Signals.h"
53 #include "llvm/Support/SourceMgr.h"
54 #include "llvm/Support/TargetRegistry.h"
55 #include "llvm/Support/TargetSelect.h"
56 #include "llvm/Support/raw_ostream.h"
60 #include <system_error>
63 using namespace object;
65 static cl::list<std::string>
66 InputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore);
69 llvm::Disassemble("disassemble",
70 cl::desc("Display assembler mnemonics for the machine instructions"));
72 Disassembled("d", cl::desc("Alias for --disassemble"),
73 cl::aliasopt(Disassemble));
76 llvm::DisassembleAll("disassemble-all",
77 cl::desc("Display assembler mnemonics for the machine instructions"));
79 DisassembleAlld("D", cl::desc("Alias for --disassemble-all"),
80 cl::aliasopt(DisassembleAll));
83 llvm::Relocations("r", cl::desc("Display the relocation entries in the file"));
86 llvm::SectionContents("s", cl::desc("Display the content of each section"));
89 llvm::SymbolTable("t", cl::desc("Display the symbol table"));
92 llvm::ExportsTrie("exports-trie", cl::desc("Display mach-o exported symbols"));
95 llvm::Rebase("rebase", cl::desc("Display mach-o rebasing info"));
98 llvm::Bind("bind", cl::desc("Display mach-o binding info"));
101 llvm::LazyBind("lazy-bind", cl::desc("Display mach-o lazy binding info"));
104 llvm::WeakBind("weak-bind", cl::desc("Display mach-o weak binding info"));
107 llvm::RawClangAST("raw-clang-ast",
108 cl::desc("Dump the raw binary contents of the clang AST section"));
111 MachOOpt("macho", cl::desc("Use MachO specific object file parser"));
113 MachOm("m", cl::desc("Alias for --macho"), cl::aliasopt(MachOOpt));
116 llvm::TripleName("triple", cl::desc("Target triple to disassemble for, "
117 "see -version for available targets"));
121 cl::desc("Target a specific cpu type (-mcpu=help for details)"),
122 cl::value_desc("cpu-name"),
126 llvm::ArchName("arch-name", cl::desc("Target arch to disassemble for, "
127 "see -version for available targets"));
130 llvm::SectionHeaders("section-headers", cl::desc("Display summaries of the "
131 "headers for each section."));
133 SectionHeadersShort("headers", cl::desc("Alias for --section-headers"),
134 cl::aliasopt(SectionHeaders));
136 SectionHeadersShorter("h", cl::desc("Alias for --section-headers"),
137 cl::aliasopt(SectionHeaders));
139 cl::list<std::string>
140 llvm::FilterSections("section", cl::desc("Operate on the specified sections only. "
141 "With -macho dump segment,section"));
143 static FilterSectionsj("j", cl::desc("Alias for --section"),
144 cl::aliasopt(llvm::FilterSections));
146 cl::list<std::string>
147 llvm::MAttrs("mattr",
149 cl::desc("Target specific attributes"),
150 cl::value_desc("a1,+a2,-a3,..."));
153 llvm::NoShowRawInsn("no-show-raw-insn", cl::desc("When disassembling "
154 "instructions, do not print "
155 "the instruction bytes."));
158 llvm::UnwindInfo("unwind-info", cl::desc("Display unwind information"));
161 UnwindInfoShort("u", cl::desc("Alias for --unwind-info"),
162 cl::aliasopt(UnwindInfo));
165 llvm::PrivateHeaders("private-headers",
166 cl::desc("Display format specific file headers"));
169 PrivateHeadersShort("p", cl::desc("Alias for --private-headers"),
170 cl::aliasopt(PrivateHeaders));
173 llvm::PrintImmHex("print-imm-hex",
174 cl::desc("Use hex format for immediate values"));
176 cl::opt<bool> PrintFaultMaps("fault-map-section",
177 cl::desc("Display contents of faultmap section"));
179 static StringRef ToolName;
182 typedef std::function<bool(llvm::object::SectionRef const &)> FilterPredicate;
184 class SectionFilterIterator {
186 SectionFilterIterator(FilterPredicate P,
187 llvm::object::section_iterator const &I,
188 llvm::object::section_iterator const &E)
189 : Predicate(P), Iterator(I), End(E) {
192 llvm::object::SectionRef operator*() const { return *Iterator; }
193 SectionFilterIterator &operator++() {
198 bool operator!=(SectionFilterIterator const &Other) const {
199 return Iterator != Other.Iterator;
203 void ScanPredicate() {
204 while (Iterator != End && !Predicate(*Iterator)) {
208 FilterPredicate Predicate;
209 llvm::object::section_iterator Iterator;
210 llvm::object::section_iterator End;
213 class SectionFilter {
215 SectionFilter(FilterPredicate P, llvm::object::ObjectFile const &O)
216 : Predicate(P), Object(O) {}
217 SectionFilterIterator begin() {
218 return SectionFilterIterator(Predicate, Object.section_begin(),
219 Object.section_end());
221 SectionFilterIterator end() {
222 return SectionFilterIterator(Predicate, Object.section_end(),
223 Object.section_end());
227 FilterPredicate Predicate;
228 llvm::object::ObjectFile const &Object;
230 SectionFilter ToolSectionFilter(llvm::object::ObjectFile const &O) {
231 return SectionFilter([](llvm::object::SectionRef const &S) {
232 if(FilterSections.empty())
234 llvm::StringRef String;
235 std::error_code error = S.getName(String);
238 return std::find(FilterSections.begin(),
239 FilterSections.end(),
240 String) != FilterSections.end();
246 void llvm::error(std::error_code EC) {
250 outs() << ToolName << ": error reading file: " << EC.message() << ".\n";
255 static void report_error(StringRef File, std::error_code EC) {
257 errs() << ToolName << ": '" << File << "': " << EC.message() << ".\n";
261 static const Target *getTarget(const ObjectFile *Obj = nullptr) {
262 // Figure out the target triple.
263 llvm::Triple TheTriple("unknown-unknown-unknown");
264 if (TripleName.empty()) {
266 TheTriple.setArch(Triple::ArchType(Obj->getArch()));
267 // TheTriple defaults to ELF, and COFF doesn't have an environment:
268 // the best we can do here is indicate that it is mach-o.
270 TheTriple.setObjectFormat(Triple::MachO);
273 const auto COFFObj = dyn_cast<COFFObjectFile>(Obj);
274 if (COFFObj->getArch() == Triple::thumb)
275 TheTriple.setTriple("thumbv7-windows");
279 TheTriple.setTriple(Triple::normalize(TripleName));
281 // Get the target specific parser.
283 const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple,
286 errs() << ToolName << ": " << Error;
290 // Update the triple name and return the found target.
291 TripleName = TheTriple.getTriple();
295 bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) {
296 return a.getOffset() < b.getOffset();
300 class PrettyPrinter {
302 virtual ~PrettyPrinter(){}
303 virtual void printInst(MCInstPrinter &IP, const MCInst *MI,
304 ArrayRef<uint8_t> Bytes, uint64_t Address,
305 raw_ostream &OS, StringRef Annot,
306 MCSubtargetInfo const &STI) {
307 outs() << format("%8" PRIx64 ":", Address);
308 if (!NoShowRawInsn) {
310 dumpBytes(Bytes, outs());
312 IP.printInst(MI, outs(), "", STI);
315 PrettyPrinter PrettyPrinterInst;
316 class HexagonPrettyPrinter : public PrettyPrinter {
318 void printLead(ArrayRef<uint8_t> Bytes, uint64_t Address,
321 (Bytes[3] << 24) | (Bytes[2] << 16) | (Bytes[1] << 8) | Bytes[0];
322 OS << format("%8" PRIx64 ":", Address);
323 if (!NoShowRawInsn) {
325 dumpBytes(Bytes.slice(0, 4), OS);
326 OS << format("%08" PRIx32, opcode);
329 void printInst(MCInstPrinter &IP, const MCInst *MI,
330 ArrayRef<uint8_t> Bytes, uint64_t Address,
331 raw_ostream &OS, StringRef Annot,
332 MCSubtargetInfo const &STI) override {
335 raw_string_ostream TempStream(Buffer);
336 IP.printInst(MI, TempStream, "", STI);
338 StringRef Contents(Buffer);
339 // Split off bundle attributes
340 auto PacketBundle = Contents.rsplit('\n');
341 // Split off first instruction from the rest
342 auto HeadTail = PacketBundle.first.split('\n');
343 auto Preamble = " { ";
345 while(!HeadTail.first.empty()) {
348 printLead(Bytes, Address, OS);
352 auto Duplex = HeadTail.first.split('\v');
353 if(!Duplex.second.empty()){
356 Inst = Duplex.second;
359 Inst = HeadTail.first;
361 Bytes = Bytes.slice(4);
363 HeadTail = HeadTail.second.split('\n');
365 OS << " } " << PacketBundle.second;
368 HexagonPrettyPrinter HexagonPrettyPrinterInst;
369 PrettyPrinter &selectPrettyPrinter(Triple const &Triple) {
370 switch(Triple.getArch()) {
372 return PrettyPrinterInst;
373 case Triple::hexagon:
374 return HexagonPrettyPrinterInst;
379 template <class ELFT>
380 static std::error_code getRelocationValueString(const ELFObjectFile<ELFT> *Obj,
382 SmallVectorImpl<char> &Result) {
383 typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
384 typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
385 typedef typename ELFObjectFile<ELFT>::Elf_Rel Elf_Rel;
386 typedef typename ELFObjectFile<ELFT>::Elf_Rela Elf_Rela;
388 const ELFFile<ELFT> &EF = *Obj->getELFFile();
390 ErrorOr<const Elf_Shdr *> SecOrErr = EF.getSection(Rel.d.a);
391 if (std::error_code EC = SecOrErr.getError())
393 const Elf_Shdr *Sec = *SecOrErr;
394 ErrorOr<const Elf_Shdr *> SymTabOrErr = EF.getSection(Sec->sh_link);
395 if (std::error_code EC = SymTabOrErr.getError())
397 const Elf_Shdr *SymTab = *SymTabOrErr;
398 assert(SymTab->sh_type == ELF::SHT_SYMTAB ||
399 SymTab->sh_type == ELF::SHT_DYNSYM);
400 ErrorOr<const Elf_Shdr *> StrTabSec = EF.getSection(SymTab->sh_link);
401 if (std::error_code EC = StrTabSec.getError())
403 ErrorOr<StringRef> StrTabOrErr = EF.getStringTable(*StrTabSec);
404 if (std::error_code EC = StrTabOrErr.getError())
406 StringRef StrTab = *StrTabOrErr;
410 uint16_t symbol_index = 0;
411 switch (Sec->sh_type) {
413 return object_error::parse_failed;
415 const Elf_Rel *ERel = Obj->getRel(Rel);
416 type = ERel->getType(EF.isMips64EL());
417 symbol_index = ERel->getSymbol(EF.isMips64EL());
418 // TODO: Read implicit addend from section data.
421 case ELF::SHT_RELA: {
422 const Elf_Rela *ERela = Obj->getRela(Rel);
423 type = ERela->getType(EF.isMips64EL());
424 symbol_index = ERela->getSymbol(EF.isMips64EL());
425 addend = ERela->r_addend;
429 const Elf_Sym *symb =
430 EF.template getEntry<Elf_Sym>(Sec->sh_link, symbol_index);
432 ErrorOr<const Elf_Shdr *> SymSec = EF.getSection(symb);
433 if (std::error_code EC = SymSec.getError())
435 if (symb->getType() == ELF::STT_SECTION) {
436 ErrorOr<StringRef> SecName = EF.getSectionName(*SymSec);
437 if (std::error_code EC = SecName.getError())
441 ErrorOr<StringRef> SymName = symb->getName(StrTab);
443 return SymName.getError();
446 switch (EF.getHeader()->e_machine) {
449 case ELF::R_X86_64_PC8:
450 case ELF::R_X86_64_PC16:
451 case ELF::R_X86_64_PC32: {
453 raw_string_ostream fmt(fmtbuf);
454 fmt << Target << (addend < 0 ? "" : "+") << addend << "-P";
456 Result.append(fmtbuf.begin(), fmtbuf.end());
458 case ELF::R_X86_64_8:
459 case ELF::R_X86_64_16:
460 case ELF::R_X86_64_32:
461 case ELF::R_X86_64_32S:
462 case ELF::R_X86_64_64: {
464 raw_string_ostream fmt(fmtbuf);
465 fmt << Target << (addend < 0 ? "" : "+") << addend;
467 Result.append(fmtbuf.begin(), fmtbuf.end());
473 case ELF::EM_AARCH64: {
475 raw_string_ostream fmt(fmtbuf);
478 fmt << (addend < 0 ? "" : "+") << addend;
480 Result.append(fmtbuf.begin(), fmtbuf.end());
485 case ELF::EM_HEXAGON:
493 Result.append(res.begin(), res.end());
494 return std::error_code();
497 static std::error_code getRelocationValueString(const ELFObjectFileBase *Obj,
498 const RelocationRef &RelRef,
499 SmallVectorImpl<char> &Result) {
500 DataRefImpl Rel = RelRef.getRawDataRefImpl();
501 if (auto *ELF32LE = dyn_cast<ELF32LEObjectFile>(Obj))
502 return getRelocationValueString(ELF32LE, Rel, Result);
503 if (auto *ELF64LE = dyn_cast<ELF64LEObjectFile>(Obj))
504 return getRelocationValueString(ELF64LE, Rel, Result);
505 if (auto *ELF32BE = dyn_cast<ELF32BEObjectFile>(Obj))
506 return getRelocationValueString(ELF32BE, Rel, Result);
507 auto *ELF64BE = cast<ELF64BEObjectFile>(Obj);
508 return getRelocationValueString(ELF64BE, Rel, Result);
511 static std::error_code getRelocationValueString(const COFFObjectFile *Obj,
512 const RelocationRef &Rel,
513 SmallVectorImpl<char> &Result) {
514 symbol_iterator SymI = Rel.getSymbol();
515 ErrorOr<StringRef> SymNameOrErr = SymI->getName();
516 if (std::error_code EC = SymNameOrErr.getError())
518 StringRef SymName = *SymNameOrErr;
519 Result.append(SymName.begin(), SymName.end());
520 return std::error_code();
523 static void printRelocationTargetName(const MachOObjectFile *O,
524 const MachO::any_relocation_info &RE,
525 raw_string_ostream &fmt) {
526 bool IsScattered = O->isRelocationScattered(RE);
528 // Target of a scattered relocation is an address. In the interest of
529 // generating pretty output, scan through the symbol table looking for a
530 // symbol that aligns with that address. If we find one, print it.
531 // Otherwise, we just print the hex address of the target.
533 uint32_t Val = O->getPlainRelocationSymbolNum(RE);
535 for (const SymbolRef &Symbol : O->symbols()) {
537 ErrorOr<uint64_t> Addr = Symbol.getAddress();
538 if ((ec = Addr.getError()))
539 report_fatal_error(ec.message());
542 ErrorOr<StringRef> Name = Symbol.getName();
543 if (std::error_code EC = Name.getError())
544 report_fatal_error(EC.message());
549 // If we couldn't find a symbol that this relocation refers to, try
550 // to find a section beginning instead.
551 for (const SectionRef &Section : ToolSectionFilter(*O)) {
555 uint64_t Addr = Section.getAddress();
558 if ((ec = Section.getName(Name)))
559 report_fatal_error(ec.message());
564 fmt << format("0x%x", Val);
569 bool isExtern = O->getPlainRelocationExternal(RE);
570 uint64_t Val = O->getPlainRelocationSymbolNum(RE);
573 symbol_iterator SI = O->symbol_begin();
575 ErrorOr<StringRef> SOrErr = SI->getName();
576 error(SOrErr.getError());
579 section_iterator SI = O->section_begin();
580 // Adjust for the fact that sections are 1-indexed.
581 advance(SI, Val - 1);
588 static std::error_code getRelocationValueString(const MachOObjectFile *Obj,
589 const RelocationRef &RelRef,
590 SmallVectorImpl<char> &Result) {
591 DataRefImpl Rel = RelRef.getRawDataRefImpl();
592 MachO::any_relocation_info RE = Obj->getRelocation(Rel);
594 unsigned Arch = Obj->getArch();
597 raw_string_ostream fmt(fmtbuf);
598 unsigned Type = Obj->getAnyRelocationType(RE);
599 bool IsPCRel = Obj->getAnyRelocationPCRel(RE);
601 // Determine any addends that should be displayed with the relocation.
602 // These require decoding the relocation type, which is triple-specific.
604 // X86_64 has entirely custom relocation types.
605 if (Arch == Triple::x86_64) {
606 bool isPCRel = Obj->getAnyRelocationPCRel(RE);
609 case MachO::X86_64_RELOC_GOT_LOAD:
610 case MachO::X86_64_RELOC_GOT: {
611 printRelocationTargetName(Obj, RE, fmt);
617 case MachO::X86_64_RELOC_SUBTRACTOR: {
618 DataRefImpl RelNext = Rel;
619 Obj->moveRelocationNext(RelNext);
620 MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
622 // X86_64_RELOC_SUBTRACTOR must be followed by a relocation of type
623 // X86_64_RELOC_UNSIGNED.
624 // NOTE: Scattered relocations don't exist on x86_64.
625 unsigned RType = Obj->getAnyRelocationType(RENext);
626 if (RType != MachO::X86_64_RELOC_UNSIGNED)
627 report_fatal_error("Expected X86_64_RELOC_UNSIGNED after "
628 "X86_64_RELOC_SUBTRACTOR.");
630 // The X86_64_RELOC_UNSIGNED contains the minuend symbol;
631 // X86_64_RELOC_SUBTRACTOR contains the subtrahend.
632 printRelocationTargetName(Obj, RENext, fmt);
634 printRelocationTargetName(Obj, RE, fmt);
637 case MachO::X86_64_RELOC_TLV:
638 printRelocationTargetName(Obj, RE, fmt);
643 case MachO::X86_64_RELOC_SIGNED_1:
644 printRelocationTargetName(Obj, RE, fmt);
647 case MachO::X86_64_RELOC_SIGNED_2:
648 printRelocationTargetName(Obj, RE, fmt);
651 case MachO::X86_64_RELOC_SIGNED_4:
652 printRelocationTargetName(Obj, RE, fmt);
656 printRelocationTargetName(Obj, RE, fmt);
659 // X86 and ARM share some relocation types in common.
660 } else if (Arch == Triple::x86 || Arch == Triple::arm ||
661 Arch == Triple::ppc) {
662 // Generic relocation types...
664 case MachO::GENERIC_RELOC_PAIR: // prints no info
665 return std::error_code();
666 case MachO::GENERIC_RELOC_SECTDIFF: {
667 DataRefImpl RelNext = Rel;
668 Obj->moveRelocationNext(RelNext);
669 MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
671 // X86 sect diff's must be followed by a relocation of type
672 // GENERIC_RELOC_PAIR.
673 unsigned RType = Obj->getAnyRelocationType(RENext);
675 if (RType != MachO::GENERIC_RELOC_PAIR)
676 report_fatal_error("Expected GENERIC_RELOC_PAIR after "
677 "GENERIC_RELOC_SECTDIFF.");
679 printRelocationTargetName(Obj, RE, fmt);
681 printRelocationTargetName(Obj, RENext, fmt);
686 if (Arch == Triple::x86 || Arch == Triple::ppc) {
688 case MachO::GENERIC_RELOC_LOCAL_SECTDIFF: {
689 DataRefImpl RelNext = Rel;
690 Obj->moveRelocationNext(RelNext);
691 MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
693 // X86 sect diff's must be followed by a relocation of type
694 // GENERIC_RELOC_PAIR.
695 unsigned RType = Obj->getAnyRelocationType(RENext);
696 if (RType != MachO::GENERIC_RELOC_PAIR)
697 report_fatal_error("Expected GENERIC_RELOC_PAIR after "
698 "GENERIC_RELOC_LOCAL_SECTDIFF.");
700 printRelocationTargetName(Obj, RE, fmt);
702 printRelocationTargetName(Obj, RENext, fmt);
705 case MachO::GENERIC_RELOC_TLV: {
706 printRelocationTargetName(Obj, RE, fmt);
713 printRelocationTargetName(Obj, RE, fmt);
715 } else { // ARM-specific relocations
717 case MachO::ARM_RELOC_HALF:
718 case MachO::ARM_RELOC_HALF_SECTDIFF: {
719 // Half relocations steal a bit from the length field to encode
720 // whether this is an upper16 or a lower16 relocation.
721 bool isUpper = Obj->getAnyRelocationLength(RE) >> 1;
727 printRelocationTargetName(Obj, RE, fmt);
729 DataRefImpl RelNext = Rel;
730 Obj->moveRelocationNext(RelNext);
731 MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
733 // ARM half relocs must be followed by a relocation of type
735 unsigned RType = Obj->getAnyRelocationType(RENext);
736 if (RType != MachO::ARM_RELOC_PAIR)
737 report_fatal_error("Expected ARM_RELOC_PAIR after "
740 // NOTE: The half of the target virtual address is stashed in the
741 // address field of the secondary relocation, but we can't reverse
742 // engineer the constant offset from it without decoding the movw/movt
743 // instruction to find the other half in its immediate field.
745 // ARM_RELOC_HALF_SECTDIFF encodes the second section in the
746 // symbol/section pointer of the follow-on relocation.
747 if (Type == MachO::ARM_RELOC_HALF_SECTDIFF) {
749 printRelocationTargetName(Obj, RENext, fmt);
755 default: { printRelocationTargetName(Obj, RE, fmt); }
759 printRelocationTargetName(Obj, RE, fmt);
762 Result.append(fmtbuf.begin(), fmtbuf.end());
763 return std::error_code();
766 static std::error_code getRelocationValueString(const RelocationRef &Rel,
767 SmallVectorImpl<char> &Result) {
768 const ObjectFile *Obj = Rel.getObject();
769 if (auto *ELF = dyn_cast<ELFObjectFileBase>(Obj))
770 return getRelocationValueString(ELF, Rel, Result);
771 if (auto *COFF = dyn_cast<COFFObjectFile>(Obj))
772 return getRelocationValueString(COFF, Rel, Result);
773 auto *MachO = cast<MachOObjectFile>(Obj);
774 return getRelocationValueString(MachO, Rel, Result);
777 /// @brief Indicates whether this relocation should hidden when listing
778 /// relocations, usually because it is the trailing part of a multipart
779 /// relocation that will be printed as part of the leading relocation.
780 static bool getHidden(RelocationRef RelRef) {
781 const ObjectFile *Obj = RelRef.getObject();
782 auto *MachO = dyn_cast<MachOObjectFile>(Obj);
786 unsigned Arch = MachO->getArch();
787 DataRefImpl Rel = RelRef.getRawDataRefImpl();
788 uint64_t Type = MachO->getRelocationType(Rel);
790 // On arches that use the generic relocations, GENERIC_RELOC_PAIR
792 if (Arch == Triple::x86 || Arch == Triple::arm || Arch == Triple::ppc) {
793 if (Type == MachO::GENERIC_RELOC_PAIR)
795 } else if (Arch == Triple::x86_64) {
796 // On x86_64, X86_64_RELOC_UNSIGNED is hidden only when it follows
797 // an X86_64_RELOC_SUBTRACTOR.
798 if (Type == MachO::X86_64_RELOC_UNSIGNED && Rel.d.a > 0) {
799 DataRefImpl RelPrev = Rel;
801 uint64_t PrevType = MachO->getRelocationType(RelPrev);
802 if (PrevType == MachO::X86_64_RELOC_SUBTRACTOR)
810 static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
811 const Target *TheTarget = getTarget(Obj);
812 // getTarget() will have already issued a diagnostic if necessary, so
813 // just bail here if it failed.
817 // Package up features to be passed to target/subtarget
818 std::string FeaturesStr;
820 SubtargetFeatures Features;
821 for (unsigned i = 0; i != MAttrs.size(); ++i)
822 Features.AddFeature(MAttrs[i]);
823 FeaturesStr = Features.getString();
826 std::unique_ptr<const MCRegisterInfo> MRI(
827 TheTarget->createMCRegInfo(TripleName));
829 errs() << "error: no register info for target " << TripleName << "\n";
833 // Set up disassembler.
834 std::unique_ptr<const MCAsmInfo> AsmInfo(
835 TheTarget->createMCAsmInfo(*MRI, TripleName));
837 errs() << "error: no assembly info for target " << TripleName << "\n";
841 std::unique_ptr<const MCSubtargetInfo> STI(
842 TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
844 errs() << "error: no subtarget info for target " << TripleName << "\n";
848 std::unique_ptr<const MCInstrInfo> MII(TheTarget->createMCInstrInfo());
850 errs() << "error: no instruction info for target " << TripleName << "\n";
854 std::unique_ptr<const MCObjectFileInfo> MOFI(new MCObjectFileInfo);
855 MCContext Ctx(AsmInfo.get(), MRI.get(), MOFI.get());
857 std::unique_ptr<MCDisassembler> DisAsm(
858 TheTarget->createMCDisassembler(*STI, Ctx));
861 errs() << "error: no disassembler for target " << TripleName << "\n";
865 std::unique_ptr<const MCInstrAnalysis> MIA(
866 TheTarget->createMCInstrAnalysis(MII.get()));
868 int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
869 std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
870 Triple(TripleName), AsmPrinterVariant, *AsmInfo, *MII, *MRI));
872 errs() << "error: no instruction printer for target " << TripleName
876 IP->setPrintImmHex(PrintImmHex);
877 PrettyPrinter &PIP = selectPrettyPrinter(Triple(TripleName));
879 StringRef Fmt = Obj->getBytesInAddress() > 4 ? "\t\t%016" PRIx64 ": " :
880 "\t\t\t%08" PRIx64 ": ";
882 // Create a mapping, RelocSecs = SectionRelocMap[S], where sections
883 // in RelocSecs contain the relocations for section S.
885 std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
886 for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
887 section_iterator Sec2 = Section.getRelocatedSection();
888 if (Sec2 != Obj->section_end())
889 SectionRelocMap[*Sec2].push_back(Section);
892 // Create a mapping from virtual address to symbol name. This is used to
893 // pretty print the target of a call.
894 std::vector<std::pair<uint64_t, StringRef>> AllSymbols;
896 for (const SymbolRef &Symbol : Obj->symbols()) {
897 if (Symbol.getType() != SymbolRef::ST_Function)
900 ErrorOr<uint64_t> AddressOrErr = Symbol.getAddress();
901 error(AddressOrErr.getError());
902 uint64_t Address = *AddressOrErr;
904 ErrorOr<StringRef> Name = Symbol.getName();
905 error(Name.getError());
908 AllSymbols.push_back(std::make_pair(Address, *Name));
911 array_pod_sort(AllSymbols.begin(), AllSymbols.end());
914 for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
915 if (!DisassembleAll && (!Section.isText() || Section.isVirtual()))
918 uint64_t SectionAddr = Section.getAddress();
919 uint64_t SectSize = Section.getSize();
923 // Make a list of all the symbols in this section.
924 std::vector<std::pair<uint64_t, StringRef>> Symbols;
925 for (const SymbolRef &Symbol : Obj->symbols()) {
926 if (Section.containsSymbol(Symbol)) {
927 ErrorOr<uint64_t> AddressOrErr = Symbol.getAddress();
928 error(AddressOrErr.getError());
929 uint64_t Address = *AddressOrErr;
930 Address -= SectionAddr;
931 if (Address >= SectSize)
934 ErrorOr<StringRef> Name = Symbol.getName();
935 error(Name.getError());
936 Symbols.push_back(std::make_pair(Address, *Name));
940 // Sort the symbols by address, just in case they didn't come in that way.
941 array_pod_sort(Symbols.begin(), Symbols.end());
943 // Make a list of all the relocations for this section.
944 std::vector<RelocationRef> Rels;
946 for (const SectionRef &RelocSec : SectionRelocMap[Section]) {
947 for (const RelocationRef &Reloc : RelocSec.relocations()) {
948 Rels.push_back(Reloc);
953 // Sort relocations by address.
954 std::sort(Rels.begin(), Rels.end(), RelocAddressLess);
956 StringRef SegmentName = "";
957 if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(Obj)) {
958 DataRefImpl DR = Section.getRawDataRefImpl();
959 SegmentName = MachO->getSectionFinalSegmentName(DR);
962 error(Section.getName(name));
963 outs() << "Disassembly of section ";
964 if (!SegmentName.empty())
965 outs() << SegmentName << ",";
966 outs() << name << ':';
968 // If the section has no symbol at the start, just insert a dummy one.
969 if (Symbols.empty() || Symbols[0].first != 0)
970 Symbols.insert(Symbols.begin(), std::make_pair(0, name));
972 SmallString<40> Comments;
973 raw_svector_ostream CommentStream(Comments);
976 error(Section.getContents(BytesStr));
977 ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
983 std::vector<RelocationRef>::const_iterator rel_cur = Rels.begin();
984 std::vector<RelocationRef>::const_iterator rel_end = Rels.end();
985 // Disassemble symbol by symbol.
986 for (unsigned si = 0, se = Symbols.size(); si != se; ++si) {
988 uint64_t Start = Symbols[si].first;
989 // The end is either the section end or the beginning of the next symbol.
990 uint64_t End = (si == se - 1) ? SectSize : Symbols[si + 1].first;
991 // If this symbol has the same address as the next symbol, then skip it.
995 outs() << '\n' << Symbols[si].second << ":\n";
998 raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
1000 raw_ostream &DebugOut = nulls();
1003 for (Index = Start; Index < End; Index += Size) {
1006 if (DisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
1007 SectionAddr + Index, DebugOut,
1009 PIP.printInst(*IP, &Inst,
1010 Bytes.slice(Index, Size),
1011 SectionAddr + Index, outs(), "", *STI);
1012 outs() << CommentStream.str();
1014 if (MIA && (MIA->isCall(Inst) || MIA->isUnconditionalBranch(Inst) ||
1015 MIA->isConditionalBranch(Inst))) {
1017 if (MIA->evaluateBranch(Inst, SectionAddr + Index, Size, Target)) {
1018 auto TargetSym = std::upper_bound(
1019 AllSymbols.begin(), AllSymbols.end(), Target,
1020 [](uint64_t LHS, const std::pair<uint64_t, StringRef> &RHS) {
1021 return LHS < RHS.first;
1023 if (TargetSym != AllSymbols.begin())
1026 TargetSym = AllSymbols.end();
1028 if (TargetSym != AllSymbols.end()) {
1029 outs() << " <" << TargetSym->second;
1030 uint64_t Disp = Target - TargetSym->first;
1032 outs() << '+' << utohexstr(Disp);
1039 errs() << ToolName << ": warning: invalid instruction encoding\n";
1041 Size = 1; // skip illegible bytes
1044 // Print relocation for instruction.
1045 while (rel_cur != rel_end) {
1046 bool hidden = getHidden(*rel_cur);
1047 uint64_t addr = rel_cur->getOffset();
1048 SmallString<16> name;
1049 SmallString<32> val;
1051 // If this relocation is hidden, skip it.
1052 if (hidden) goto skip_print_rel;
1054 // Stop when rel_cur's address is past the current instruction.
1055 if (addr >= Index + Size) break;
1056 rel_cur->getTypeName(name);
1057 error(getRelocationValueString(*rel_cur, val));
1058 outs() << format(Fmt.data(), SectionAddr + addr) << name
1059 << "\t" << val << "\n";
1069 void llvm::PrintRelocations(const ObjectFile *Obj) {
1070 StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 :
1072 // Regular objdump doesn't print relocations in non-relocatable object
1074 if (!Obj->isRelocatableObject())
1077 for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
1078 if (Section.relocation_begin() == Section.relocation_end())
1081 error(Section.getName(secname));
1082 outs() << "RELOCATION RECORDS FOR [" << secname << "]:\n";
1083 for (const RelocationRef &Reloc : Section.relocations()) {
1084 bool hidden = getHidden(Reloc);
1085 uint64_t address = Reloc.getOffset();
1086 SmallString<32> relocname;
1087 SmallString<32> valuestr;
1090 Reloc.getTypeName(relocname);
1091 error(getRelocationValueString(Reloc, valuestr));
1092 outs() << format(Fmt.data(), address) << " " << relocname << " "
1093 << valuestr << "\n";
1099 void llvm::PrintSectionHeaders(const ObjectFile *Obj) {
1100 outs() << "Sections:\n"
1101 "Idx Name Size Address Type\n";
1103 for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
1105 error(Section.getName(Name));
1106 uint64_t Address = Section.getAddress();
1107 uint64_t Size = Section.getSize();
1108 bool Text = Section.isText();
1109 bool Data = Section.isData();
1110 bool BSS = Section.isBSS();
1111 std::string Type = (std::string(Text ? "TEXT " : "") +
1112 (Data ? "DATA " : "") + (BSS ? "BSS" : ""));
1113 outs() << format("%3d %-13s %08" PRIx64 " %016" PRIx64 " %s\n", i,
1114 Name.str().c_str(), Size, Address, Type.c_str());
1119 void llvm::PrintSectionContents(const ObjectFile *Obj) {
1121 for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
1124 error(Section.getName(Name));
1125 uint64_t BaseAddr = Section.getAddress();
1126 uint64_t Size = Section.getSize();
1130 outs() << "Contents of section " << Name << ":\n";
1131 if (Section.isBSS()) {
1132 outs() << format("<skipping contents of bss section at [%04" PRIx64
1133 ", %04" PRIx64 ")>\n",
1134 BaseAddr, BaseAddr + Size);
1138 error(Section.getContents(Contents));
1140 // Dump out the content as hex and printable ascii characters.
1141 for (std::size_t addr = 0, end = Contents.size(); addr < end; addr += 16) {
1142 outs() << format(" %04" PRIx64 " ", BaseAddr + addr);
1143 // Dump line of hex.
1144 for (std::size_t i = 0; i < 16; ++i) {
1145 if (i != 0 && i % 4 == 0)
1148 outs() << hexdigit((Contents[addr + i] >> 4) & 0xF, true)
1149 << hexdigit(Contents[addr + i] & 0xF, true);
1155 for (std::size_t i = 0; i < 16 && addr + i < end; ++i) {
1156 if (std::isprint(static_cast<unsigned char>(Contents[addr + i]) & 0xFF))
1157 outs() << Contents[addr + i];
1166 static void PrintCOFFSymbolTable(const COFFObjectFile *coff) {
1167 for (unsigned SI = 0, SE = coff->getNumberOfSymbols(); SI != SE; ++SI) {
1168 ErrorOr<COFFSymbolRef> Symbol = coff->getSymbol(SI);
1170 error(Symbol.getError());
1171 error(coff->getSymbolName(*Symbol, Name));
1173 outs() << "[" << format("%2d", SI) << "]"
1174 << "(sec " << format("%2d", int(Symbol->getSectionNumber())) << ")"
1175 << "(fl 0x00)" // Flag bits, which COFF doesn't have.
1176 << "(ty " << format("%3x", unsigned(Symbol->getType())) << ")"
1177 << "(scl " << format("%3x", unsigned(Symbol->getStorageClass())) << ") "
1178 << "(nx " << unsigned(Symbol->getNumberOfAuxSymbols()) << ") "
1179 << "0x" << format("%08x", unsigned(Symbol->getValue())) << " "
1182 for (unsigned AI = 0, AE = Symbol->getNumberOfAuxSymbols(); AI < AE; ++AI, ++SI) {
1183 if (Symbol->isSectionDefinition()) {
1184 const coff_aux_section_definition *asd;
1185 error(coff->getAuxSymbol<coff_aux_section_definition>(SI + 1, asd));
1187 int32_t AuxNumber = asd->getNumber(Symbol->isBigObj());
1190 << format("scnlen 0x%x nreloc %d nlnno %d checksum 0x%x "
1191 , unsigned(asd->Length)
1192 , unsigned(asd->NumberOfRelocations)
1193 , unsigned(asd->NumberOfLinenumbers)
1194 , unsigned(asd->CheckSum))
1195 << format("assoc %d comdat %d\n"
1196 , unsigned(AuxNumber)
1197 , unsigned(asd->Selection));
1198 } else if (Symbol->isFileRecord()) {
1199 const char *FileName;
1200 error(coff->getAuxSymbol<char>(SI + 1, FileName));
1202 StringRef Name(FileName, Symbol->getNumberOfAuxSymbols() *
1203 coff->getSymbolTableEntrySize());
1204 outs() << "AUX " << Name.rtrim(StringRef("\0", 1)) << '\n';
1206 SI = SI + Symbol->getNumberOfAuxSymbols();
1209 outs() << "AUX Unknown\n";
1215 void llvm::PrintSymbolTable(const ObjectFile *o) {
1216 outs() << "SYMBOL TABLE:\n";
1218 if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) {
1219 PrintCOFFSymbolTable(coff);
1222 for (const SymbolRef &Symbol : o->symbols()) {
1223 ErrorOr<uint64_t> AddressOrError = Symbol.getAddress();
1224 error(AddressOrError.getError());
1225 uint64_t Address = *AddressOrError;
1226 SymbolRef::Type Type = Symbol.getType();
1227 uint32_t Flags = Symbol.getFlags();
1228 section_iterator Section = o->section_end();
1229 error(Symbol.getSection(Section));
1231 if (Type == SymbolRef::ST_Debug && Section != o->section_end()) {
1232 Section->getName(Name);
1234 ErrorOr<StringRef> NameOrErr = Symbol.getName();
1235 error(NameOrErr.getError());
1239 bool Global = Flags & SymbolRef::SF_Global;
1240 bool Weak = Flags & SymbolRef::SF_Weak;
1241 bool Absolute = Flags & SymbolRef::SF_Absolute;
1242 bool Common = Flags & SymbolRef::SF_Common;
1243 bool Hidden = Flags & SymbolRef::SF_Hidden;
1246 if (Type != SymbolRef::ST_Unknown)
1247 GlobLoc = Global ? 'g' : 'l';
1248 char Debug = (Type == SymbolRef::ST_Debug || Type == SymbolRef::ST_File)
1250 char FileFunc = ' ';
1251 if (Type == SymbolRef::ST_File)
1253 else if (Type == SymbolRef::ST_Function)
1256 const char *Fmt = o->getBytesInAddress() > 4 ? "%016" PRIx64 :
1259 outs() << format(Fmt, Address) << " "
1260 << GlobLoc // Local -> 'l', Global -> 'g', Neither -> ' '
1261 << (Weak ? 'w' : ' ') // Weak?
1262 << ' ' // Constructor. Not supported yet.
1263 << ' ' // Warning. Not supported yet.
1264 << ' ' // Indirect reference to another symbol.
1265 << Debug // Debugging (d) or dynamic (D) symbol.
1266 << FileFunc // Name of function (F), file (f) or object (O).
1270 } else if (Common) {
1272 } else if (Section == o->section_end()) {
1275 if (const MachOObjectFile *MachO =
1276 dyn_cast<const MachOObjectFile>(o)) {
1277 DataRefImpl DR = Section->getRawDataRefImpl();
1278 StringRef SegmentName = MachO->getSectionFinalSegmentName(DR);
1279 outs() << SegmentName << ",";
1281 StringRef SectionName;
1282 error(Section->getName(SectionName));
1283 outs() << SectionName;
1287 if (Common || isa<ELFObjectFileBase>(o)) {
1289 Common ? Symbol.getAlignment() : ELFSymbolRef(Symbol).getSize();
1290 outs() << format("\t %08" PRIx64 " ", Val);
1294 outs() << ".hidden ";
1301 static void PrintUnwindInfo(const ObjectFile *o) {
1302 outs() << "Unwind info:\n\n";
1304 if (const COFFObjectFile *coff = dyn_cast<COFFObjectFile>(o)) {
1305 printCOFFUnwindInfo(coff);
1306 } else if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
1307 printMachOUnwindInfo(MachO);
1309 // TODO: Extract DWARF dump tool to objdump.
1310 errs() << "This operation is only currently supported "
1311 "for COFF and MachO object files.\n";
1316 void llvm::printExportsTrie(const ObjectFile *o) {
1317 outs() << "Exports trie:\n";
1318 if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
1319 printMachOExportsTrie(MachO);
1321 errs() << "This operation is only currently supported "
1322 "for Mach-O executable files.\n";
1327 void llvm::printRebaseTable(const ObjectFile *o) {
1328 outs() << "Rebase table:\n";
1329 if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
1330 printMachORebaseTable(MachO);
1332 errs() << "This operation is only currently supported "
1333 "for Mach-O executable files.\n";
1338 void llvm::printBindTable(const ObjectFile *o) {
1339 outs() << "Bind table:\n";
1340 if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
1341 printMachOBindTable(MachO);
1343 errs() << "This operation is only currently supported "
1344 "for Mach-O executable files.\n";
1349 void llvm::printLazyBindTable(const ObjectFile *o) {
1350 outs() << "Lazy bind table:\n";
1351 if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
1352 printMachOLazyBindTable(MachO);
1354 errs() << "This operation is only currently supported "
1355 "for Mach-O executable files.\n";
1360 void llvm::printWeakBindTable(const ObjectFile *o) {
1361 outs() << "Weak bind table:\n";
1362 if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
1363 printMachOWeakBindTable(MachO);
1365 errs() << "This operation is only currently supported "
1366 "for Mach-O executable files.\n";
1371 /// Dump the raw contents of the __clangast section so the output can be piped
1372 /// into llvm-bcanalyzer.
1373 void llvm::printRawClangAST(const ObjectFile *Obj) {
1374 if (outs().is_displayed()) {
1375 errs() << "The -raw-clang-ast option will dump the raw binary contents of "
1376 "the clang ast section.\n"
1377 "Please redirect the output to a file or another program such as "
1378 "llvm-bcanalyzer.\n";
1382 StringRef ClangASTSectionName("__clangast");
1383 if (isa<COFFObjectFile>(Obj)) {
1384 ClangASTSectionName = "clangast";
1387 Optional<object::SectionRef> ClangASTSection;
1388 for (auto Sec : ToolSectionFilter(*Obj)) {
1391 if (Name == ClangASTSectionName) {
1392 ClangASTSection = Sec;
1396 if (!ClangASTSection)
1399 StringRef ClangASTContents;
1400 error(ClangASTSection.getValue().getContents(ClangASTContents));
1401 outs().write(ClangASTContents.data(), ClangASTContents.size());
1404 static void printFaultMaps(const ObjectFile *Obj) {
1405 const char *FaultMapSectionName = nullptr;
1407 if (isa<ELFObjectFileBase>(Obj)) {
1408 FaultMapSectionName = ".llvm_faultmaps";
1409 } else if (isa<MachOObjectFile>(Obj)) {
1410 FaultMapSectionName = "__llvm_faultmaps";
1412 errs() << "This operation is only currently supported "
1413 "for ELF and Mach-O executable files.\n";
1417 Optional<object::SectionRef> FaultMapSection;
1419 for (auto Sec : ToolSectionFilter(*Obj)) {
1422 if (Name == FaultMapSectionName) {
1423 FaultMapSection = Sec;
1428 outs() << "FaultMap table:\n";
1430 if (!FaultMapSection.hasValue()) {
1431 outs() << "<not found>\n";
1435 StringRef FaultMapContents;
1436 error(FaultMapSection.getValue().getContents(FaultMapContents));
1438 FaultMapParser FMP(FaultMapContents.bytes_begin(),
1439 FaultMapContents.bytes_end());
1444 static void printPrivateFileHeader(const ObjectFile *o) {
1446 printELFFileHeader(o);
1447 } else if (o->isCOFF()) {
1448 printCOFFFileHeader(o);
1449 } else if (o->isMachO()) {
1450 printMachOFileHeader(o);
1454 static void DumpObject(const ObjectFile *o) {
1455 // Avoid other output when using a raw option.
1458 outs() << o->getFileName()
1459 << ":\tfile format " << o->getFileFormatName() << "\n\n";
1463 DisassembleObject(o, Relocations);
1464 if (Relocations && !Disassemble)
1465 PrintRelocations(o);
1467 PrintSectionHeaders(o);
1468 if (SectionContents)
1469 PrintSectionContents(o);
1471 PrintSymbolTable(o);
1475 printPrivateFileHeader(o);
1477 printExportsTrie(o);
1479 printRebaseTable(o);
1483 printLazyBindTable(o);
1485 printWeakBindTable(o);
1487 printRawClangAST(o);
1492 /// @brief Dump each object file in \a a;
1493 static void DumpArchive(const Archive *a) {
1494 for (const Archive::Child &C : a->children()) {
1495 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
1496 if (std::error_code EC = ChildOrErr.getError())
1497 if (EC != object_error::invalid_file_type)
1498 report_error(a->getFileName(), EC);
1499 if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
1502 report_error(a->getFileName(), object_error::invalid_file_type);
1506 /// @brief Open file and figure out how to dump it.
1507 static void DumpInput(StringRef file) {
1508 // If file isn't stdin, check that it exists.
1509 if (file != "-" && !sys::fs::exists(file))
1510 report_error(file, errc::no_such_file_or_directory);
1512 // If we are using the Mach-O specific object file parser, then let it parse
1513 // the file and process the command line options. So the -arch flags can
1514 // be used to select specific slices, etc.
1516 ParseInputMachO(file);
1520 // Attempt to open the binary.
1521 ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(file);
1522 if (std::error_code EC = BinaryOrErr.getError())
1523 report_error(file, EC);
1524 Binary &Binary = *BinaryOrErr.get().getBinary();
1526 if (Archive *a = dyn_cast<Archive>(&Binary))
1528 else if (ObjectFile *o = dyn_cast<ObjectFile>(&Binary))
1531 report_error(file, object_error::invalid_file_type);
1534 int main(int argc, char **argv) {
1535 // Print a stack trace if we signal out.
1536 sys::PrintStackTraceOnErrorSignal();
1537 PrettyStackTraceProgram X(argc, argv);
1538 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
1540 // Initialize targets and assembly printers/parsers.
1541 llvm::InitializeAllTargetInfos();
1542 llvm::InitializeAllTargetMCs();
1543 llvm::InitializeAllAsmParsers();
1544 llvm::InitializeAllDisassemblers();
1546 // Register the target printer for --version.
1547 cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
1549 cl::ParseCommandLineOptions(argc, argv, "llvm object file dumper\n");
1550 TripleName = Triple::normalize(TripleName);
1554 // Defaults to a.out if no filenames specified.
1555 if (InputFilenames.size() == 0)
1556 InputFilenames.push_back("a.out");
1573 && !(UniversalHeaders && MachOOpt)
1574 && !(ArchiveHeaders && MachOOpt)
1575 && !(IndirectSymbols && MachOOpt)
1576 && !(DataInCode && MachOOpt)
1577 && !(LinkOptHints && MachOOpt)
1578 && !(InfoPlist && MachOOpt)
1579 && !(DylibsUsed && MachOOpt)
1580 && !(DylibId && MachOOpt)
1581 && !(ObjcMetaData && MachOOpt)
1582 && !(FilterSections.size() != 0 && MachOOpt)
1583 && !PrintFaultMaps) {
1584 cl::PrintHelpMessage();
1588 std::for_each(InputFilenames.begin(), InputFilenames.end(),
1591 return EXIT_SUCCESS;