| //===-- llvm-objdump.cpp - Object file dumping utility for llvm -----------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This program is a utility that works like binutils "objdump", that is, it |
| // dumps out a plethora of information about an object file depending on the |
| // flags. |
| // |
| // The flags and output of this program should be near identical to those of |
| // binutils objdump. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm-objdump.h" |
| #include "MCFunction.h" |
| #include "llvm/ADT/OwningPtr.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include "llvm/ADT/Triple.h" |
| #include "llvm/MC/MCAsmInfo.h" |
| #include "llvm/MC/MCDisassembler.h" |
| #include "llvm/MC/MCInst.h" |
| #include "llvm/MC/MCInstPrinter.h" |
| #include "llvm/MC/MCInstrInfo.h" |
| #include "llvm/MC/MCRegisterInfo.h" |
| #include "llvm/MC/MCSubtargetInfo.h" |
| #include "llvm/Object/Archive.h" |
| #include "llvm/Object/COFF.h" |
| #include "llvm/Object/MachO.h" |
| #include "llvm/Object/ObjectFile.h" |
| #include "llvm/Support/Casting.h" |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/Debug.h" |
| #include "llvm/Support/FileSystem.h" |
| #include "llvm/Support/Format.h" |
| #include "llvm/Support/GraphWriter.h" |
| #include "llvm/Support/Host.h" |
| #include "llvm/Support/ManagedStatic.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/Support/MemoryObject.h" |
| #include "llvm/Support/PrettyStackTrace.h" |
| #include "llvm/Support/Signals.h" |
| #include "llvm/Support/SourceMgr.h" |
| #include "llvm/Support/TargetRegistry.h" |
| #include "llvm/Support/TargetSelect.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include "llvm/Support/system_error.h" |
| #include <algorithm> |
| #include <cctype> |
| #include <cstring> |
| using namespace llvm; |
| using namespace object; |
| |
| static cl::list<std::string> |
| InputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore); |
| |
| static cl::opt<bool> |
| Disassemble("disassemble", |
| cl::desc("Display assembler mnemonics for the machine instructions")); |
| static cl::alias |
| Disassembled("d", cl::desc("Alias for --disassemble"), |
| cl::aliasopt(Disassemble)); |
| |
| static cl::opt<bool> |
| Relocations("r", cl::desc("Display the relocation entries in the file")); |
| |
| static cl::opt<bool> |
| SectionContents("s", cl::desc("Display the content of each section")); |
| |
| static cl::opt<bool> |
| SymbolTable("t", cl::desc("Display the symbol table")); |
| |
| static cl::opt<bool> |
| MachOOpt("macho", cl::desc("Use MachO specific object file parser")); |
| static cl::alias |
| MachOm("m", cl::desc("Alias for --macho"), cl::aliasopt(MachOOpt)); |
| |
| cl::opt<std::string> |
| llvm::TripleName("triple", cl::desc("Target triple to disassemble for, " |
| "see -version for available targets")); |
| |
| cl::opt<std::string> |
| llvm::ArchName("arch", cl::desc("Target arch to disassemble for, " |
| "see -version for available targets")); |
| |
| static cl::opt<bool> |
| SectionHeaders("section-headers", cl::desc("Display summaries of the headers " |
| "for each section.")); |
| static cl::alias |
| SectionHeadersShort("headers", cl::desc("Alias for --section-headers"), |
| cl::aliasopt(SectionHeaders)); |
| static cl::alias |
| SectionHeadersShorter("h", cl::desc("Alias for --section-headers"), |
| cl::aliasopt(SectionHeaders)); |
| |
| static cl::list<std::string> |
| MAttrs("mattr", |
| cl::CommaSeparated, |
| cl::desc("Target specific attributes"), |
| cl::value_desc("a1,+a2,-a3,...")); |
| |
| static cl::opt<bool> |
| NoShowRawInsn("no-show-raw-insn", cl::desc("When disassembling instructions, " |
| "do not print the instruction bytes.")); |
| |
| static cl::opt<bool> |
| UnwindInfo("unwind-info", cl::desc("Display unwind information")); |
| |
| static cl::alias |
| UnwindInfoShort("u", cl::desc("Alias for --unwind-info"), |
| cl::aliasopt(UnwindInfo)); |
| |
| static cl::opt<bool> |
| PrivateHeaders("private-headers", |
| cl::desc("Display format specific file headers")); |
| |
| static cl::alias |
| PrivateHeadersShort("p", cl::desc("Alias for --private-headers"), |
| cl::aliasopt(PrivateHeaders)); |
| |
| static StringRef ToolName; |
| |
| bool llvm::error(error_code ec) { |
| if (!ec) return false; |
| |
| outs() << ToolName << ": error reading file: " << ec.message() << ".\n"; |
| outs().flush(); |
| return true; |
| } |
| |
| static const Target *getTarget(const ObjectFile *Obj = NULL) { |
| // Figure out the target triple. |
| llvm::Triple TheTriple("unknown-unknown-unknown"); |
| if (TripleName.empty()) { |
| if (Obj) |
| TheTriple.setArch(Triple::ArchType(Obj->getArch())); |
| } else |
| TheTriple.setTriple(Triple::normalize(TripleName)); |
| |
| // Get the target specific parser. |
| std::string Error; |
| const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple, |
| Error); |
| if (!TheTarget) { |
| errs() << ToolName << ": " << Error; |
| return 0; |
| } |
| |
| // Update the triple name and return the found target. |
| TripleName = TheTriple.getTriple(); |
| return TheTarget; |
| } |
| |
| void llvm::StringRefMemoryObject::anchor() { } |
| |
| void llvm::DumpBytes(StringRef bytes) { |
| static const char hex_rep[] = "0123456789abcdef"; |
| // FIXME: The real way to do this is to figure out the longest instruction |
| // and align to that size before printing. I'll fix this when I get |
| // around to outputting relocations. |
| // 15 is the longest x86 instruction |
| // 3 is for the hex rep of a byte + a space. |
| // 1 is for the null terminator. |
| enum { OutputSize = (15 * 3) + 1 }; |
| char output[OutputSize]; |
| |
| assert(bytes.size() <= 15 |
| && "DumpBytes only supports instructions of up to 15 bytes"); |
| memset(output, ' ', sizeof(output)); |
| unsigned index = 0; |
| for (StringRef::iterator i = bytes.begin(), |
| e = bytes.end(); i != e; ++i) { |
| output[index] = hex_rep[(*i & 0xF0) >> 4]; |
| output[index + 1] = hex_rep[*i & 0xF]; |
| index += 3; |
| } |
| |
| output[sizeof(output) - 1] = 0; |
| outs() << output; |
| } |
| |
| bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) { |
| uint64_t a_addr, b_addr; |
| if (error(a.getAddress(a_addr))) return false; |
| if (error(b.getAddress(b_addr))) return false; |
| return a_addr < b_addr; |
| } |
| |
| static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { |
| const Target *TheTarget = getTarget(Obj); |
| // getTarget() will have already issued a diagnostic if necessary, so |
| // just bail here if it failed. |
| if (!TheTarget) |
| return; |
| |
| // Package up features to be passed to target/subtarget |
| std::string FeaturesStr; |
| if (MAttrs.size()) { |
| SubtargetFeatures Features; |
| for (unsigned i = 0; i != MAttrs.size(); ++i) |
| Features.AddFeature(MAttrs[i]); |
| FeaturesStr = Features.getString(); |
| } |
| |
| error_code ec; |
| for (section_iterator i = Obj->begin_sections(), |
| e = Obj->end_sections(); |
| i != e; i.increment(ec)) { |
| if (error(ec)) break; |
| bool text; |
| if (error(i->isText(text))) break; |
| if (!text) continue; |
| |
| uint64_t SectionAddr; |
| if (error(i->getAddress(SectionAddr))) break; |
| |
| // Make a list of all the symbols in this section. |
| std::vector<std::pair<uint64_t, StringRef> > Symbols; |
| for (symbol_iterator si = Obj->begin_symbols(), |
| se = Obj->end_symbols(); |
| si != se; si.increment(ec)) { |
| bool contains; |
| if (!error(i->containsSymbol(*si, contains)) && contains) { |
| uint64_t Address; |
| if (error(si->getAddress(Address))) break; |
| Address -= SectionAddr; |
| |
| StringRef Name; |
| if (error(si->getName(Name))) break; |
| Symbols.push_back(std::make_pair(Address, Name)); |
| } |
| } |
| |
| // Sort the symbols by address, just in case they didn't come in that way. |
| array_pod_sort(Symbols.begin(), Symbols.end()); |
| |
| // Make a list of all the relocations for this section. |
| std::vector<RelocationRef> Rels; |
| if (InlineRelocs) { |
| for (relocation_iterator ri = i->begin_relocations(), |
| re = i->end_relocations(); |
| ri != re; ri.increment(ec)) { |
| if (error(ec)) break; |
| Rels.push_back(*ri); |
| } |
| } |
| |
| // Sort relocations by address. |
| std::sort(Rels.begin(), Rels.end(), RelocAddressLess); |
| |
| StringRef SegmentName = ""; |
| if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(Obj)) { |
| DataRefImpl DR = i->getRawDataRefImpl(); |
| if (error(MachO->getSectionFinalSegmentName(DR, SegmentName))) |
| break; |
| } |
| StringRef name; |
| if (error(i->getName(name))) break; |
| outs() << "Disassembly of section "; |
| if (!SegmentName.empty()) |
| outs() << SegmentName << ","; |
| outs() << name << ':'; |
| |
| // If the section has no symbols just insert a dummy one and disassemble |
| // the whole section. |
| if (Symbols.empty()) |
| Symbols.push_back(std::make_pair(0, name)); |
| |
| // Set up disassembler. |
| OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName)); |
| |
| if (!AsmInfo) { |
| errs() << "error: no assembly info for target " << TripleName << "\n"; |
| return; |
| } |
| |
| OwningPtr<const MCSubtargetInfo> STI( |
| TheTarget->createMCSubtargetInfo(TripleName, "", FeaturesStr)); |
| |
| if (!STI) { |
| errs() << "error: no subtarget info for target " << TripleName << "\n"; |
| return; |
| } |
| |
| OwningPtr<const MCDisassembler> DisAsm( |
| TheTarget->createMCDisassembler(*STI)); |
| if (!DisAsm) { |
| errs() << "error: no disassembler for target " << TripleName << "\n"; |
| return; |
| } |
| |
| OwningPtr<const MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName)); |
| if (!MRI) { |
| errs() << "error: no register info for target " << TripleName << "\n"; |
| return; |
| } |
| |
| OwningPtr<const MCInstrInfo> MII(TheTarget->createMCInstrInfo()); |
| if (!MII) { |
| errs() << "error: no instruction info for target " << TripleName << "\n"; |
| return; |
| } |
| |
| int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); |
| OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( |
| AsmPrinterVariant, *AsmInfo, *MII, *MRI, *STI)); |
| if (!IP) { |
| errs() << "error: no instruction printer for target " << TripleName |
| << '\n'; |
| return; |
| } |
| |
| StringRef Bytes; |
| if (error(i->getContents(Bytes))) break; |
| StringRefMemoryObject memoryObject(Bytes); |
| uint64_t Size; |
| uint64_t Index; |
| uint64_t SectSize; |
| if (error(i->getSize(SectSize))) break; |
| |
| std::vector<RelocationRef>::const_iterator rel_cur = Rels.begin(); |
| std::vector<RelocationRef>::const_iterator rel_end = Rels.end(); |
| // Disassemble symbol by symbol. |
| for (unsigned si = 0, se = Symbols.size(); si != se; ++si) { |
| uint64_t Start = Symbols[si].first; |
| uint64_t End; |
| // The end is either the size of the section or the beginning of the next |
| // symbol. |
| if (si == se - 1) |
| End = SectSize; |
| // Make sure this symbol takes up space. |
| else if (Symbols[si + 1].first != Start) |
| End = Symbols[si + 1].first - 1; |
| else |
| // This symbol has the same address as the next symbol. Skip it. |
| continue; |
| |
| outs() << '\n' << Symbols[si].second << ":\n"; |
| |
| #ifndef NDEBUG |
| raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); |
| #else |
| raw_ostream &DebugOut = nulls(); |
| #endif |
| |
| for (Index = Start; Index < End; Index += Size) { |
| MCInst Inst; |
| |
| if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, |
| DebugOut, nulls())) { |
| outs() << format("%8" PRIx64 ":", SectionAddr + Index); |
| if (!NoShowRawInsn) { |
| outs() << "\t"; |
| DumpBytes(StringRef(Bytes.data() + Index, Size)); |
| } |
| IP->printInst(&Inst, outs(), ""); |
| outs() << "\n"; |
| } else { |
| errs() << ToolName << ": warning: invalid instruction encoding\n"; |
| if (Size == 0) |
| Size = 1; // skip illegible bytes |
| } |
| |
| // Print relocation for instruction. |
| while (rel_cur != rel_end) { |
| bool hidden = false; |
| uint64_t addr; |
| SmallString<16> name; |
| SmallString<32> val; |
| |
| // If this relocation is hidden, skip it. |
| if (error(rel_cur->getHidden(hidden))) goto skip_print_rel; |
| if (hidden) goto skip_print_rel; |
| |
| if (error(rel_cur->getAddress(addr))) goto skip_print_rel; |
| // Stop when rel_cur's address is past the current instruction. |
| if (addr >= Index + Size) break; |
| if (error(rel_cur->getTypeName(name))) goto skip_print_rel; |
| if (error(rel_cur->getValueString(val))) goto skip_print_rel; |
| |
| outs() << format("\t\t\t%8" PRIx64 ": ", SectionAddr + addr) << name |
| << "\t" << val << "\n"; |
| |
| skip_print_rel: |
| ++rel_cur; |
| } |
| } |
| } |
| } |
| } |
| |
| static void PrintRelocations(const ObjectFile *o) { |
| error_code ec; |
| for (section_iterator si = o->begin_sections(), se = o->end_sections(); |
| si != se; si.increment(ec)){ |
| if (error(ec)) return; |
| if (si->begin_relocations() == si->end_relocations()) |
| continue; |
| StringRef secname; |
| if (error(si->getName(secname))) continue; |
| outs() << "RELOCATION RECORDS FOR [" << secname << "]:\n"; |
| for (relocation_iterator ri = si->begin_relocations(), |
| re = si->end_relocations(); |
| ri != re; ri.increment(ec)) { |
| if (error(ec)) return; |
| |
| bool hidden; |
| uint64_t address; |
| SmallString<32> relocname; |
| SmallString<32> valuestr; |
| if (error(ri->getHidden(hidden))) continue; |
| if (hidden) continue; |
| if (error(ri->getTypeName(relocname))) continue; |
| if (error(ri->getAddress(address))) continue; |
| if (error(ri->getValueString(valuestr))) continue; |
| outs() << address << " " << relocname << " " << valuestr << "\n"; |
| } |
| outs() << "\n"; |
| } |
| } |
| |
| static void PrintSectionHeaders(const ObjectFile *o) { |
| outs() << "Sections:\n" |
| "Idx Name Size Address Type\n"; |
| error_code ec; |
| unsigned i = 0; |
| for (section_iterator si = o->begin_sections(), se = o->end_sections(); |
| si != se; si.increment(ec)) { |
| if (error(ec)) return; |
| StringRef Name; |
| if (error(si->getName(Name))) return; |
| uint64_t Address; |
| if (error(si->getAddress(Address))) return; |
| uint64_t Size; |
| if (error(si->getSize(Size))) return; |
| bool Text, Data, BSS; |
| if (error(si->isText(Text))) return; |
| if (error(si->isData(Data))) return; |
| if (error(si->isBSS(BSS))) return; |
| std::string Type = (std::string(Text ? "TEXT " : "") + |
| (Data ? "DATA " : "") + (BSS ? "BSS" : "")); |
| outs() << format("%3d %-13s %08" PRIx64 " %016" PRIx64 " %s\n", |
| i, Name.str().c_str(), Size, Address, Type.c_str()); |
| ++i; |
| } |
| } |
| |
| static void PrintSectionContents(const ObjectFile *o) { |
| error_code ec; |
| for (section_iterator si = o->begin_sections(), |
| se = o->end_sections(); |
| si != se; si.increment(ec)) { |
| if (error(ec)) return; |
| StringRef Name; |
| StringRef Contents; |
| uint64_t BaseAddr; |
| if (error(si->getName(Name))) continue; |
| if (error(si->getContents(Contents))) continue; |
| if (error(si->getAddress(BaseAddr))) continue; |
| |
| outs() << "Contents of section " << Name << ":\n"; |
| |
| // Dump out the content as hex and printable ascii characters. |
| for (std::size_t addr = 0, end = Contents.size(); addr < end; addr += 16) { |
| outs() << format(" %04" PRIx64 " ", BaseAddr + addr); |
| // Dump line of hex. |
| for (std::size_t i = 0; i < 16; ++i) { |
| if (i != 0 && i % 4 == 0) |
| outs() << ' '; |
| if (addr + i < end) |
| outs() << hexdigit((Contents[addr + i] >> 4) & 0xF, true) |
| << hexdigit(Contents[addr + i] & 0xF, true); |
| else |
| outs() << " "; |
| } |
| // Print ascii. |
| outs() << " "; |
| for (std::size_t i = 0; i < 16 && addr + i < end; ++i) { |
| if (std::isprint(static_cast<unsigned char>(Contents[addr + i]) & 0xFF)) |
| outs() << Contents[addr + i]; |
| else |
| outs() << "."; |
| } |
| outs() << "\n"; |
| } |
| } |
| } |
| |
| static void PrintCOFFSymbolTable(const COFFObjectFile *coff) { |
| const coff_file_header *header; |
| if (error(coff->getHeader(header))) return; |
| int aux_count = 0; |
| const coff_symbol *symbol = 0; |
| for (int i = 0, e = header->NumberOfSymbols; i != e; ++i) { |
| if (aux_count--) { |
| // Figure out which type of aux this is. |
| if (symbol->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC |
| && symbol->Value == 0) { // Section definition. |
| const coff_aux_section_definition *asd; |
| if (error(coff->getAuxSymbol<coff_aux_section_definition>(i, asd))) |
| return; |
| outs() << "AUX " |
| << format("scnlen 0x%x nreloc %d nlnno %d checksum 0x%x " |
| , unsigned(asd->Length) |
| , unsigned(asd->NumberOfRelocations) |
| , unsigned(asd->NumberOfLinenumbers) |
| , unsigned(asd->CheckSum)) |
| << format("assoc %d comdat %d\n" |
| , unsigned(asd->Number) |
| , unsigned(asd->Selection)); |
| } else |
| outs() << "AUX Unknown\n"; |
| } else { |
| StringRef name; |
| if (error(coff->getSymbol(i, symbol))) return; |
| if (error(coff->getSymbolName(symbol, name))) return; |
| outs() << "[" << format("%2d", i) << "]" |
| << "(sec " << format("%2d", int(symbol->SectionNumber)) << ")" |
| << "(fl 0x00)" // Flag bits, which COFF doesn't have. |
| << "(ty " << format("%3x", unsigned(symbol->Type)) << ")" |
| << "(scl " << format("%3x", unsigned(symbol->StorageClass)) << ") " |
| << "(nx " << unsigned(symbol->NumberOfAuxSymbols) << ") " |
| << "0x" << format("%08x", unsigned(symbol->Value)) << " " |
| << name << "\n"; |
| aux_count = symbol->NumberOfAuxSymbols; |
| } |
| } |
| } |
| |
| static void PrintSymbolTable(const ObjectFile *o) { |
| outs() << "SYMBOL TABLE:\n"; |
| |
| if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) |
| PrintCOFFSymbolTable(coff); |
| else { |
| error_code ec; |
| for (symbol_iterator si = o->begin_symbols(), |
| se = o->end_symbols(); si != se; si.increment(ec)) { |
| if (error(ec)) return; |
| StringRef Name; |
| uint64_t Address; |
| SymbolRef::Type Type; |
| uint64_t Size; |
| uint32_t Flags; |
| section_iterator Section = o->end_sections(); |
| if (error(si->getName(Name))) continue; |
| if (error(si->getAddress(Address))) continue; |
| if (error(si->getFlags(Flags))) continue; |
| if (error(si->getType(Type))) continue; |
| if (error(si->getSize(Size))) continue; |
| if (error(si->getSection(Section))) continue; |
| |
| bool Global = Flags & SymbolRef::SF_Global; |
| bool Weak = Flags & SymbolRef::SF_Weak; |
| bool Absolute = Flags & SymbolRef::SF_Absolute; |
| |
| if (Address == UnknownAddressOrSize) |
| Address = 0; |
| if (Size == UnknownAddressOrSize) |
| Size = 0; |
| char GlobLoc = ' '; |
| if (Type != SymbolRef::ST_Unknown) |
| GlobLoc = Global ? 'g' : 'l'; |
| char Debug = (Type == SymbolRef::ST_Debug || Type == SymbolRef::ST_File) |
| ? 'd' : ' '; |
| char FileFunc = ' '; |
| if (Type == SymbolRef::ST_File) |
| FileFunc = 'f'; |
| else if (Type == SymbolRef::ST_Function) |
| FileFunc = 'F'; |
| |
| const char *Fmt = o->getBytesInAddress() > 4 ? "%016" PRIx64 : |
| "%08" PRIx64; |
| |
| outs() << format(Fmt, Address) << " " |
| << GlobLoc // Local -> 'l', Global -> 'g', Neither -> ' ' |
| << (Weak ? 'w' : ' ') // Weak? |
| << ' ' // Constructor. Not supported yet. |
| << ' ' // Warning. Not supported yet. |
| << ' ' // Indirect reference to another symbol. |
| << Debug // Debugging (d) or dynamic (D) symbol. |
| << FileFunc // Name of function (F), file (f) or object (O). |
| << ' '; |
| if (Absolute) |
| outs() << "*ABS*"; |
| else if (Section == o->end_sections()) |
| outs() << "*UND*"; |
| else { |
| if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(o)) { |
| StringRef SegmentName; |
| DataRefImpl DR = Section->getRawDataRefImpl(); |
| if (error(MachO->getSectionFinalSegmentName(DR, SegmentName))) |
| SegmentName = ""; |
| outs() << SegmentName << ","; |
| } |
| StringRef SectionName; |
| if (error(Section->getName(SectionName))) |
| SectionName = ""; |
| outs() << SectionName; |
| } |
| outs() << '\t' |
| << format("%08" PRIx64 " ", Size) |
| << Name |
| << '\n'; |
| } |
| } |
| } |
| |
| static void PrintUnwindInfo(const ObjectFile *o) { |
| outs() << "Unwind info:\n\n"; |
| |
| if (const COFFObjectFile *coff = dyn_cast<COFFObjectFile>(o)) { |
| printCOFFUnwindInfo(coff); |
| } else { |
| // TODO: Extract DWARF dump tool to objdump. |
| errs() << "This operation is only currently supported " |
| "for COFF object files.\n"; |
| return; |
| } |
| } |
| |
| static void DumpObject(const ObjectFile *o) { |
| outs() << '\n'; |
| outs() << o->getFileName() |
| << ":\tfile format " << o->getFileFormatName() << "\n\n"; |
| |
| if (Disassemble) |
| DisassembleObject(o, Relocations); |
| if (Relocations && !Disassemble) |
| PrintRelocations(o); |
| if (SectionHeaders) |
| PrintSectionHeaders(o); |
| if (SectionContents) |
| PrintSectionContents(o); |
| if (SymbolTable) |
| PrintSymbolTable(o); |
| if (UnwindInfo) |
| PrintUnwindInfo(o); |
| if (PrivateHeaders && o->isELF()) |
| printELFFileHeader(o); |
| } |
| |
| /// @brief Dump each object file in \a a; |
| static void DumpArchive(const Archive *a) { |
| for (Archive::child_iterator i = a->begin_children(), |
| e = a->end_children(); i != e; ++i) { |
| OwningPtr<Binary> child; |
| if (error_code ec = i->getAsBinary(child)) { |
| // Ignore non-object files. |
| if (ec != object_error::invalid_file_type) |
| errs() << ToolName << ": '" << a->getFileName() << "': " << ec.message() |
| << ".\n"; |
| continue; |
| } |
| if (ObjectFile *o = dyn_cast<ObjectFile>(child.get())) |
| DumpObject(o); |
| else |
| errs() << ToolName << ": '" << a->getFileName() << "': " |
| << "Unrecognized file type.\n"; |
| } |
| } |
| |
| /// @brief Open file and figure out how to dump it. |
| static void DumpInput(StringRef file) { |
| // If file isn't stdin, check that it exists. |
| if (file != "-" && !sys::fs::exists(file)) { |
| errs() << ToolName << ": '" << file << "': " << "No such file\n"; |
| return; |
| } |
| |
| if (MachOOpt && Disassemble) { |
| DisassembleInputMachO(file); |
| return; |
| } |
| |
| // Attempt to open the binary. |
| OwningPtr<Binary> binary; |
| if (error_code ec = createBinary(file, binary)) { |
| errs() << ToolName << ": '" << file << "': " << ec.message() << ".\n"; |
| return; |
| } |
| |
| if (Archive *a = dyn_cast<Archive>(binary.get())) |
| DumpArchive(a); |
| else if (ObjectFile *o = dyn_cast<ObjectFile>(binary.get())) |
| DumpObject(o); |
| else |
| errs() << ToolName << ": '" << file << "': " << "Unrecognized file type.\n"; |
| } |
| |
| int main(int argc, char **argv) { |
| // Print a stack trace if we signal out. |
| sys::PrintStackTraceOnErrorSignal(); |
| PrettyStackTraceProgram X(argc, argv); |
| llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. |
| |
| // Initialize targets and assembly printers/parsers. |
| llvm::InitializeAllTargetInfos(); |
| llvm::InitializeAllTargetMCs(); |
| llvm::InitializeAllAsmParsers(); |
| llvm::InitializeAllDisassemblers(); |
| |
| // Register the target printer for --version. |
| cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion); |
| |
| cl::ParseCommandLineOptions(argc, argv, "llvm object file dumper\n"); |
| TripleName = Triple::normalize(TripleName); |
| |
| ToolName = argv[0]; |
| |
| // Defaults to a.out if no filenames specified. |
| if (InputFilenames.size() == 0) |
| InputFilenames.push_back("a.out"); |
| |
| if (!Disassemble |
| && !Relocations |
| && !SectionHeaders |
| && !SectionContents |
| && !SymbolTable |
| && !UnwindInfo |
| && !PrivateHeaders) { |
| cl::PrintHelpMessage(); |
| return 2; |
| } |
| |
| std::for_each(InputFilenames.begin(), InputFilenames.end(), |
| DumpInput); |
| |
| return 0; |
| } |
