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-rw-r--r--contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp904
1 files changed, 904 insertions, 0 deletions
diff --git a/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp b/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp
new file mode 100644
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--- /dev/null
+++ b/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -0,0 +1,904 @@
+//===-- 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 "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Triple.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/MCInstrInfo.h"
+#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCRelocationInfo.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/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 <algorithm>
+#include <cctype>
+#include <cstring>
+#include <system_error>
+
+using namespace llvm;
+using namespace object;
+
+static cl::list<std::string>
+InputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore);
+
+cl::opt<bool>
+llvm::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"));
+
+cl::opt<bool>
+llvm::ExportsTrie("exports-trie", cl::desc("Display mach-o exported symbols"));
+
+cl::opt<bool>
+llvm::Rebase("rebase", cl::desc("Display mach-o rebasing info"));
+
+cl::opt<bool>
+llvm::Bind("bind", cl::desc("Display mach-o binding info"));
+
+cl::opt<bool>
+llvm::LazyBind("lazy-bind", cl::desc("Display mach-o lazy binding info"));
+
+cl::opt<bool>
+llvm::WeakBind("weak-bind", cl::desc("Display mach-o weak binding info"));
+
+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::MCPU("mcpu",
+ cl::desc("Target a specific cpu type (-mcpu=help for details)"),
+ cl::value_desc("cpu-name"),
+ cl::init(""));
+
+cl::opt<std::string>
+llvm::ArchName("arch-name", 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));
+
+cl::list<std::string>
+llvm::MAttrs("mattr",
+ cl::CommaSeparated,
+ cl::desc("Target specific attributes"),
+ cl::value_desc("a1,+a2,-a3,..."));
+
+cl::opt<bool>
+llvm::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));
+
+cl::opt<bool>
+llvm::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;
+static int ReturnValue = EXIT_SUCCESS;
+
+bool llvm::error(std::error_code EC) {
+ if (!EC)
+ return false;
+
+ outs() << ToolName << ": error reading file: " << EC.message() << ".\n";
+ outs().flush();
+ ReturnValue = EXIT_FAILURE;
+ return true;
+}
+
+static const Target *getTarget(const ObjectFile *Obj = nullptr) {
+ // Figure out the target triple.
+ llvm::Triple TheTriple("unknown-unknown-unknown");
+ if (TripleName.empty()) {
+ if (Obj) {
+ TheTriple.setArch(Triple::ArchType(Obj->getArch()));
+ // TheTriple defaults to ELF, and COFF doesn't have an environment:
+ // the best we can do here is indicate that it is mach-o.
+ if (Obj->isMachO())
+ TheTriple.setObjectFormat(Triple::MachO);
+
+ if (Obj->isCOFF()) {
+ const auto COFFObj = dyn_cast<COFFObjectFile>(Obj);
+ if (COFFObj->getArch() == Triple::thumb)
+ TheTriple.setTriple("thumbv7-windows");
+ }
+ }
+ } 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 nullptr;
+ }
+
+ // Update the triple name and return the found target.
+ TripleName = TheTriple.getTriple();
+ return TheTarget;
+}
+
+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.getOffset(a_addr))) return false;
+ if (error(b.getOffset(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();
+ }
+
+ std::unique_ptr<const MCRegisterInfo> MRI(
+ TheTarget->createMCRegInfo(TripleName));
+ if (!MRI) {
+ errs() << "error: no register info for target " << TripleName << "\n";
+ return;
+ }
+
+ // Set up disassembler.
+ std::unique_ptr<const MCAsmInfo> AsmInfo(
+ TheTarget->createMCAsmInfo(*MRI, TripleName));
+ if (!AsmInfo) {
+ errs() << "error: no assembly info for target " << TripleName << "\n";
+ return;
+ }
+
+ std::unique_ptr<const MCSubtargetInfo> STI(
+ TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
+ if (!STI) {
+ errs() << "error: no subtarget info for target " << TripleName << "\n";
+ return;
+ }
+
+ std::unique_ptr<const MCInstrInfo> MII(TheTarget->createMCInstrInfo());
+ if (!MII) {
+ errs() << "error: no instruction info for target " << TripleName << "\n";
+ return;
+ }
+
+ std::unique_ptr<const MCObjectFileInfo> MOFI(new MCObjectFileInfo);
+ MCContext Ctx(AsmInfo.get(), MRI.get(), MOFI.get());
+
+ std::unique_ptr<MCDisassembler> DisAsm(
+ TheTarget->createMCDisassembler(*STI, Ctx));
+
+ if (!DisAsm) {
+ errs() << "error: no disassembler for target " << TripleName << "\n";
+ return;
+ }
+
+ std::unique_ptr<const MCInstrAnalysis> MIA(
+ TheTarget->createMCInstrAnalysis(MII.get()));
+
+ int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
+ std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
+ AsmPrinterVariant, *AsmInfo, *MII, *MRI, *STI));
+ if (!IP) {
+ errs() << "error: no instruction printer for target " << TripleName
+ << '\n';
+ return;
+ }
+
+ StringRef Fmt = Obj->getBytesInAddress() > 4 ? "\t\t%016" PRIx64 ": " :
+ "\t\t\t%08" PRIx64 ": ";
+
+ // Create a mapping, RelocSecs = SectionRelocMap[S], where sections
+ // in RelocSecs contain the relocations for section S.
+ std::error_code EC;
+ std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
+ for (const SectionRef &Section : Obj->sections()) {
+ section_iterator Sec2 = Section.getRelocatedSection();
+ if (Sec2 != Obj->section_end())
+ SectionRelocMap[*Sec2].push_back(Section);
+ }
+
+ for (const SectionRef &Section : Obj->sections()) {
+ if (!Section.isText() || Section.isVirtual())
+ continue;
+
+ uint64_t SectionAddr = Section.getAddress();
+ uint64_t SectSize = Section.getSize();
+ if (!SectSize)
+ continue;
+
+ // Make a list of all the symbols in this section.
+ std::vector<std::pair<uint64_t, StringRef>> Symbols;
+ for (const SymbolRef &Symbol : Obj->symbols()) {
+ if (Section.containsSymbol(Symbol)) {
+ uint64_t Address;
+ if (error(Symbol.getAddress(Address)))
+ break;
+ if (Address == UnknownAddressOrSize)
+ continue;
+ Address -= SectionAddr;
+ if (Address >= SectSize)
+ continue;
+
+ StringRef Name;
+ if (error(Symbol.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 (const SectionRef &RelocSec : SectionRelocMap[Section]) {
+ for (const RelocationRef &Reloc : RelocSec.relocations()) {
+ Rels.push_back(Reloc);
+ }
+ }
+ }
+
+ // Sort relocations by address.
+ std::sort(Rels.begin(), Rels.end(), RelocAddressLess);
+
+ StringRef SegmentName = "";
+ if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(Obj)) {
+ DataRefImpl DR = Section.getRawDataRefImpl();
+ SegmentName = MachO->getSectionFinalSegmentName(DR);
+ }
+ StringRef name;
+ if (error(Section.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));
+
+
+ SmallString<40> Comments;
+ raw_svector_ostream CommentStream(Comments);
+
+ StringRef BytesStr;
+ if (error(Section.getContents(BytesStr)))
+ break;
+ ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
+ BytesStr.size());
+
+ uint64_t Size;
+ uint64_t Index;
+
+ 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;
+ // The end is either the section end or the beginning of the next symbol.
+ uint64_t End = (si == se - 1) ? SectSize : Symbols[si + 1].first;
+ // If this symbol has the same address as the next symbol, then skip it.
+ if (Start == End)
+ 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, Bytes.slice(Index),
+ SectionAddr + Index, DebugOut,
+ CommentStream)) {
+ outs() << format("%8" PRIx64 ":", SectionAddr + Index);
+ if (!NoShowRawInsn) {
+ outs() << "\t";
+ DumpBytes(StringRef(
+ reinterpret_cast<const char *>(Bytes.data()) + Index, Size));
+ }
+ IP->printInst(&Inst, outs(), "");
+ outs() << CommentStream.str();
+ Comments.clear();
+ 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->getOffset(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(Fmt.data(), SectionAddr + addr) << name
+ << "\t" << val << "\n";
+
+ skip_print_rel:
+ ++rel_cur;
+ }
+ }
+ }
+ }
+}
+
+static void PrintRelocations(const ObjectFile *Obj) {
+ StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 :
+ "%08" PRIx64;
+ // Regular objdump doesn't print relocations in non-relocatable object
+ // files.
+ if (!Obj->isRelocatableObject())
+ return;
+
+ for (const SectionRef &Section : Obj->sections()) {
+ if (Section.relocation_begin() == Section.relocation_end())
+ continue;
+ StringRef secname;
+ if (error(Section.getName(secname)))
+ continue;
+ outs() << "RELOCATION RECORDS FOR [" << secname << "]:\n";
+ for (const RelocationRef &Reloc : Section.relocations()) {
+ bool hidden;
+ uint64_t address;
+ SmallString<32> relocname;
+ SmallString<32> valuestr;
+ if (error(Reloc.getHidden(hidden)))
+ continue;
+ if (hidden)
+ continue;
+ if (error(Reloc.getTypeName(relocname)))
+ continue;
+ if (error(Reloc.getOffset(address)))
+ continue;
+ if (error(Reloc.getValueString(valuestr)))
+ continue;
+ outs() << format(Fmt.data(), address) << " " << relocname << " "
+ << valuestr << "\n";
+ }
+ outs() << "\n";
+ }
+}
+
+static void PrintSectionHeaders(const ObjectFile *Obj) {
+ outs() << "Sections:\n"
+ "Idx Name Size Address Type\n";
+ unsigned i = 0;
+ for (const SectionRef &Section : Obj->sections()) {
+ StringRef Name;
+ if (error(Section.getName(Name)))
+ return;
+ uint64_t Address = Section.getAddress();
+ uint64_t Size = Section.getSize();
+ bool Text = Section.isText();
+ bool Data = Section.isData();
+ bool BSS = Section.isBSS();
+ 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 *Obj) {
+ std::error_code EC;
+ for (const SectionRef &Section : Obj->sections()) {
+ StringRef Name;
+ StringRef Contents;
+ if (error(Section.getName(Name)))
+ continue;
+ uint64_t BaseAddr = Section.getAddress();
+ uint64_t Size = Section.getSize();
+ if (!Size)
+ continue;
+
+ outs() << "Contents of section " << Name << ":\n";
+ if (Section.isBSS()) {
+ outs() << format("<skipping contents of bss section at [%04" PRIx64
+ ", %04" PRIx64 ")>\n",
+ BaseAddr, BaseAddr + Size);
+ continue;
+ }
+
+ if (error(Section.getContents(Contents)))
+ continue;
+
+ // 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) {
+ for (unsigned SI = 0, SE = coff->getNumberOfSymbols(); SI != SE; ++SI) {
+ ErrorOr<COFFSymbolRef> Symbol = coff->getSymbol(SI);
+ StringRef Name;
+ if (error(Symbol.getError()))
+ return;
+
+ if (error(coff->getSymbolName(*Symbol, Name)))
+ return;
+
+ outs() << "[" << format("%2d", SI) << "]"
+ << "(sec " << format("%2d", int(Symbol->getSectionNumber())) << ")"
+ << "(fl 0x00)" // Flag bits, which COFF doesn't have.
+ << "(ty " << format("%3x", unsigned(Symbol->getType())) << ")"
+ << "(scl " << format("%3x", unsigned(Symbol->getStorageClass())) << ") "
+ << "(nx " << unsigned(Symbol->getNumberOfAuxSymbols()) << ") "
+ << "0x" << format("%08x", unsigned(Symbol->getValue())) << " "
+ << Name << "\n";
+
+ for (unsigned AI = 0, AE = Symbol->getNumberOfAuxSymbols(); AI < AE; ++AI, ++SI) {
+ if (Symbol->isSectionDefinition()) {
+ const coff_aux_section_definition *asd;
+ if (error(coff->getAuxSymbol<coff_aux_section_definition>(SI + 1, asd)))
+ return;
+
+ int32_t AuxNumber = asd->getNumber(Symbol->isBigObj());
+
+ 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(AuxNumber)
+ , unsigned(asd->Selection));
+ } else if (Symbol->isFileRecord()) {
+ const char *FileName;
+ if (error(coff->getAuxSymbol<char>(SI + 1, FileName)))
+ return;
+
+ StringRef Name(FileName, Symbol->getNumberOfAuxSymbols() *
+ coff->getSymbolTableEntrySize());
+ outs() << "AUX " << Name.rtrim(StringRef("\0", 1)) << '\n';
+
+ SI = SI + Symbol->getNumberOfAuxSymbols();
+ break;
+ } else {
+ outs() << "AUX Unknown\n";
+ }
+ }
+ }
+}
+
+static void PrintSymbolTable(const ObjectFile *o) {
+ outs() << "SYMBOL TABLE:\n";
+
+ if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) {
+ PrintCOFFSymbolTable(coff);
+ return;
+ }
+ for (const SymbolRef &Symbol : o->symbols()) {
+ StringRef Name;
+ uint64_t Address;
+ SymbolRef::Type Type;
+ uint64_t Size;
+ uint32_t Flags = Symbol.getFlags();
+ section_iterator Section = o->section_end();
+ if (error(Symbol.getName(Name)))
+ continue;
+ if (error(Symbol.getAddress(Address)))
+ continue;
+ if (error(Symbol.getType(Type)))
+ continue;
+ if (error(Symbol.getSize(Size)))
+ continue;
+ if (error(Symbol.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->section_end()) {
+ outs() << "*UND*";
+ } else {
+ if (const MachOObjectFile *MachO =
+ dyn_cast<const MachOObjectFile>(o)) {
+ DataRefImpl DR = Section->getRawDataRefImpl();
+ StringRef SegmentName = MachO->getSectionFinalSegmentName(DR);
+ 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 if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOUnwindInfo(MachO);
+ else {
+ // TODO: Extract DWARF dump tool to objdump.
+ errs() << "This operation is only currently supported "
+ "for COFF and MachO object files.\n";
+ return;
+ }
+}
+
+void llvm::printExportsTrie(const ObjectFile *o) {
+ outs() << "Exports trie:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOExportsTrie(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printRebaseTable(const ObjectFile *o) {
+ outs() << "Rebase table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachORebaseTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printBindTable(const ObjectFile *o) {
+ outs() << "Bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printLazyBindTable(const ObjectFile *o) {
+ outs() << "Lazy bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOLazyBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printWeakBindTable(const ObjectFile *o) {
+ outs() << "Weak bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOWeakBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+static void printPrivateFileHeader(const ObjectFile *o) {
+ if (o->isELF()) {
+ printELFFileHeader(o);
+ } else if (o->isCOFF()) {
+ printCOFFFileHeader(o);
+ } else if (o->isMachO()) {
+ printMachOFileHeader(o);
+ }
+}
+
+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)
+ printPrivateFileHeader(o);
+ if (ExportsTrie)
+ printExportsTrie(o);
+ if (Rebase)
+ printRebaseTable(o);
+ if (Bind)
+ printBindTable(o);
+ if (LazyBind)
+ printLazyBindTable(o);
+ if (WeakBind)
+ printWeakBindTable(o);
+}
+
+/// @brief Dump each object file in \a a;
+static void DumpArchive(const Archive *a) {
+ for (Archive::child_iterator i = a->child_begin(), e = a->child_end(); i != e;
+ ++i) {
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = i->getAsBinary();
+ if (std::error_code EC = ChildOrErr.getError()) {
+ // 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>(&*ChildOrErr.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 we are using the Mach-O specific object file parser, then let it parse
+ // the file and process the command line options. So the -arch flags can
+ // be used to select specific slices, etc.
+ if (MachOOpt) {
+ ParseInputMachO(file);
+ return;
+ }
+
+ // Attempt to open the binary.
+ ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(file);
+ if (std::error_code EC = BinaryOrErr.getError()) {
+ errs() << ToolName << ": '" << file << "': " << EC.message() << ".\n";
+ return;
+ }
+ Binary &Binary = *BinaryOrErr.get().getBinary();
+
+ if (Archive *a = dyn_cast<Archive>(&Binary))
+ DumpArchive(a);
+ else if (ObjectFile *o = dyn_cast<ObjectFile>(&Binary))
+ 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
+ && !ExportsTrie
+ && !Rebase
+ && !Bind
+ && !LazyBind
+ && !WeakBind
+ && !(UniversalHeaders && MachOOpt)) {
+ cl::PrintHelpMessage();
+ return 2;
+ }
+
+ std::for_each(InputFilenames.begin(), InputFilenames.end(),
+ DumpInput);
+
+ return ReturnValue;
+}
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