llvm-objdump.cpp revision 0b8b771e9f2f251460a6f200c45efe9d55640d60
192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer//===-- llvm-objdump.cpp - Object file dumping utility for llvm -----------===// 292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// 392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// The LLVM Compiler Infrastructure 492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// 592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// This file is distributed under the University of Illinois Open Source 692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// License. See LICENSE.TXT for details. 792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// 892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer//===----------------------------------------------------------------------===// 992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// 1092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// This program is a utility that works like binutils "objdump", that is, it 1192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// dumps out a plethora of information about an object file depending on the 1292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// flags. 1392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer// 1492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer//===----------------------------------------------------------------------===// 1592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 160b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer#include "llvm-objdump.h" 17685a2501b20baf688f6cc087f4b92bbafcd8028eBenjamin Kramer#include "MCFunction.h" 1892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Object/ObjectFile.h" 1992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/ADT/OwningPtr.h" 2092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/ADT/Triple.h" 21739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer#include "llvm/ADT/STLExtras.h" 2292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/MC/MCAsmInfo.h" 2392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/MC/MCDisassembler.h" 2492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/MC/MCInst.h" 2592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/MC/MCInstPrinter.h" 267801136b95d1fbe515b9655b73ada39b05a33559Evan Cheng#include "llvm/MC/MCInstrAnalysis.h" 27685a2501b20baf688f6cc087f4b92bbafcd8028eBenjamin Kramer#include "llvm/MC/MCInstrDesc.h" 28685a2501b20baf688f6cc087f4b92bbafcd8028eBenjamin Kramer#include "llvm/MC/MCInstrInfo.h" 29b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy#include "llvm/MC/MCSubtargetInfo.h" 3092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/CommandLine.h" 3192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/Debug.h" 3292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/Format.h" 33853b0fd623491ef7dafeed20ee15897e3b95d82cBenjamin Kramer#include "llvm/Support/GraphWriter.h" 3492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/Host.h" 3592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/ManagedStatic.h" 3692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/MemoryBuffer.h" 3792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/MemoryObject.h" 3892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/PrettyStackTrace.h" 3992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/Signals.h" 4092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/SourceMgr.h" 413e74d6fdd248e20a280f1dff3da9a6c689c2c4c3Evan Cheng#include "llvm/Support/TargetRegistry.h" 423e74d6fdd248e20a280f1dff3da9a6c689c2c4c3Evan Cheng#include "llvm/Support/TargetSelect.h" 4392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/raw_ostream.h" 4492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include "llvm/Support/system_error.h" 4592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include <algorithm> 4692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer#include <cstring> 4792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencerusing namespace llvm; 4892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencerusing namespace object; 4992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 500b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerstatic cl::list<std::string> 510b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin KramerInputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore); 5292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 530b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerstatic cl::opt<bool> 540b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin KramerDisassemble("disassemble", 550b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer cl::desc("Display assembler mnemonics for the machine instructions")); 560b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerstatic cl::alias 570b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin KramerDisassembled("d", cl::desc("Alias for --disassemble"), 580b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer cl::aliasopt(Disassemble)); 5992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 600b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerstatic cl::opt<bool> 610b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin KramerMachO("macho", cl::desc("Use MachO specific object file parser")); 620b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerstatic cl::alias 630b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin KramerMachOm("m", cl::desc("Alias for --macho"), cl::aliasopt(MachO)); 64685a2501b20baf688f6cc087f4b92bbafcd8028eBenjamin Kramer 650b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramercl::opt<std::string> 660b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerllvm::TripleName("triple", cl::desc("Target triple to disassemble for, " 670b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer "see -version for available targets")); 6892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 690b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramercl::opt<std::string> 700b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerllvm::ArchName("arch", cl::desc("Target arch to disassemble for, " 710b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer "see -version for available targets")); 7292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 730b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerstatic StringRef ToolName; 7425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer 750b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramerstatic bool error(error_code ec) { 760b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer if (!ec) return false; 7725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer 780b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer outs() << ToolName << ": error reading file: " << ec.message() << ".\n"; 790b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer outs().flush(); 800b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer return true; 8192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer} 8292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 8392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencerstatic const Target *GetTarget(const ObjectFile *Obj = NULL) { 8492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // Figure out the target triple. 8592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer llvm::Triple TT("unknown-unknown-unknown"); 86d11699d3c057129d0716fa548c67d1f62837f6b6Michael J. Spencer if (TripleName.empty()) { 8792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (Obj) 8892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer TT.setArch(Triple::ArchType(Obj->getArch())); 89d11699d3c057129d0716fa548c67d1f62837f6b6Michael J. Spencer } else 9092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer TT.setTriple(Triple::normalize(TripleName)); 9192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 9292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (!ArchName.empty()) 9392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer TT.setArchName(ArchName); 9492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 9592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer TripleName = TT.str(); 9692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 9792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // Get the target specific parser. 9892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer std::string Error; 9992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); 10092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (TheTarget) 10192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return TheTarget; 10292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 10392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer errs() << ToolName << ": error: unable to get target for '" << TripleName 10492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer << "', see --version and --triple.\n"; 10592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return 0; 10692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer} 10792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 1080b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramervoid llvm::DumpBytes(StringRef bytes) { 1090b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer static const char hex_rep[] = "0123456789abcdef"; 11092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // FIXME: The real way to do this is to figure out the longest instruction 11192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // and align to that size before printing. I'll fix this when I get 11292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // around to outputting relocations. 11392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // 15 is the longest x86 instruction 11492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // 3 is for the hex rep of a byte + a space. 11592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // 1 is for the null terminator. 11692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer enum { OutputSize = (15 * 3) + 1 }; 11792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer char output[OutputSize]; 11892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 11992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer assert(bytes.size() <= 15 12092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer && "DumpBytes only supports instructions of up to 15 bytes"); 12192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer memset(output, ' ', sizeof(output)); 12292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer unsigned index = 0; 12392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer for (StringRef::iterator i = bytes.begin(), 12492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer e = bytes.end(); i != e; ++i) { 12592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer output[index] = hex_rep[(*i & 0xF0) >> 4]; 12692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer output[index + 1] = hex_rep[*i & 0xF]; 12792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer index += 3; 12892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 12992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 13092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer output[sizeof(output) - 1] = 0; 13192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer outs() << output; 13292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer} 13392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 1340b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramervoid llvm::DisassembleInputLibObject(StringRef Filename) { 13592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer OwningPtr<MemoryBuffer> Buff; 13692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 13792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) { 13892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer errs() << ToolName << ": " << Filename << ": " << ec.message() << "\n"; 13992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return; 14092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 14192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 14292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer OwningPtr<ObjectFile> Obj(ObjectFile::createObjectFile(Buff.take())); 14392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 14492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer const Target *TheTarget = GetTarget(Obj.get()); 14592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (!TheTarget) { 14692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // GetTarget prints out stuff. 14792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return; 14892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 149685a2501b20baf688f6cc087f4b92bbafcd8028eBenjamin Kramer const MCInstrInfo *InstrInfo = TheTarget->createMCInstrInfo(); 15041ab14b725c8f2bb3e54553d0d7d96ff184786b1Benjamin Kramer OwningPtr<MCInstrAnalysis> 15141ab14b725c8f2bb3e54553d0d7d96ff184786b1Benjamin Kramer InstrAnalysis(TheTarget->createMCInstrAnalysis(InstrInfo)); 15292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 15392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer outs() << '\n'; 15492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer outs() << Filename 155739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer << ":\tfile format " << Obj->getFileFormatName() << "\n\n"; 15692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 15725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer error_code ec; 15892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer for (ObjectFile::section_iterator i = Obj->begin_sections(), 15992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer e = Obj->end_sections(); 16025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer i != e; i.increment(ec)) { 16125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer if (error(ec)) break; 16225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer bool text; 16325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer if (error(i->isText(text))) break; 16425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer if (!text) continue; 16525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer 166739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer // Make a list of all the symbols in this section. 167739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer std::vector<std::pair<uint64_t, StringRef> > Symbols; 168739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer for (ObjectFile::symbol_iterator si = Obj->begin_symbols(), 169739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer se = Obj->end_symbols(); 170739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer si != se; si.increment(ec)) { 171739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer bool contains; 172739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer if (!error(i->containsSymbol(*si, contains)) && contains) { 173739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer uint64_t Address; 174ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer if (error(si->getOffset(Address))) break; 175739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer StringRef Name; 176739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer if (error(si->getName(Name))) break; 177739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer Symbols.push_back(std::make_pair(Address, Name)); 178739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer } 179739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer } 180739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer 181739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer // Sort the symbols by address, just in case they didn't come in that way. 182739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer array_pod_sort(Symbols.begin(), Symbols.end()); 183739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer 18425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer StringRef name; 18525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer if (error(i->getName(name))) break; 186739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer outs() << "Disassembly of section " << name << ':'; 187739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer 188739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer // If the section has no symbols just insert a dummy one and disassemble 189739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer // the whole section. 190739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer if (Symbols.empty()) 191739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer Symbols.push_back(std::make_pair(0, name)); 19292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 19392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // Set up disassembler. 1941abf2cb59b8d63415780a03329307c0997b2670cEvan Cheng OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName)); 19592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 19692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (!AsmInfo) { 19792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer errs() << "error: no assembly info for target " << TripleName << "\n"; 19892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return; 19992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 20092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 201b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy OwningPtr<const MCSubtargetInfo> STI(TheTarget->createMCSubtargetInfo(TripleName, "", "")); 202b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy 203b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy if (!STI) { 204b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy errs() << "error: no subtarget info for target " << TripleName << "\n"; 205b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy return; 206b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy } 207b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy 208b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI)); 20992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (!DisAsm) { 21092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer errs() << "error: no disassembler for target " << TripleName << "\n"; 21192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return; 21292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 21392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 21492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); 21592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( 216b950585cc5a0d665e9accfe5ce490cd269756f2eJames Molloy AsmPrinterVariant, *AsmInfo, *STI)); 21792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (!IP) { 21892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer errs() << "error: no instruction printer for target " << TripleName << '\n'; 21992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return; 22092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 22192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 22225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer StringRef Bytes; 22325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer if (error(i->getContents(Bytes))) break; 22492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer StringRefMemoryObject memoryObject(Bytes); 22592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer uint64_t Size; 22692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer uint64_t Index; 227739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer uint64_t SectSize; 228739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer if (error(i->getSize(SectSize))) break; 229739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer 230739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer // Disassemble symbol by symbol. 231739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer for (unsigned si = 0, se = Symbols.size(); si != se; ++si) { 232739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer uint64_t Start = Symbols[si].first; 233739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer uint64_t End = si == se-1 ? SectSize : Symbols[si + 1].first - 1; 234739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer outs() << '\n' << Symbols[si].second << ":\n"; 235739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer 236739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer#ifndef NDEBUG 237739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); 238739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer#else 239739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer raw_ostream &DebugOut = nulls(); 240739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer#endif 241739b65bf85cf7221b8a615e83dee11ec729e2649Benjamin Kramer 2420b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer for (Index = Start; Index < End; Index += Size) { 2430b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer MCInst Inst; 2440b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer 2450b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, 2460b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer DebugOut, nulls())) { 2470b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer uint64_t addr; 2480b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer if (error(i->getAddress(addr))) break; 2490b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer outs() << format("%8x:\t", addr + Index); 2500b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer DumpBytes(StringRef(Bytes.data() + Index, Size)); 2510b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer IP->printInst(&Inst, outs(), ""); 2520b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer outs() << "\n"; 2530b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer } else { 2540b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer errs() << ToolName << ": warning: invalid instruction encoding\n"; 2550b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer if (Size == 0) 2560b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer Size = 1; // skip illegible bytes 257685a2501b20baf688f6cc087f4b92bbafcd8028eBenjamin Kramer } 258685a2501b20baf688f6cc087f4b92bbafcd8028eBenjamin Kramer } 25992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 26092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 26192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer} 26292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 26392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencerint main(int argc, char **argv) { 26492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // Print a stack trace if we signal out. 26592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer sys::PrintStackTraceOnErrorSignal(); 26692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer PrettyStackTraceProgram X(argc, argv); 26792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. 26892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 26992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // Initialize targets and assembly printers/parsers. 27092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer llvm::InitializeAllTargetInfos(); 271e78085a3c03de648a481e9751c3094c517bd7123Evan Cheng llvm::InitializeAllTargetMCs(); 27292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer llvm::InitializeAllAsmParsers(); 27392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer llvm::InitializeAllDisassemblers(); 27492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 27592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer cl::ParseCommandLineOptions(argc, argv, "llvm object file dumper\n"); 27692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer TripleName = Triple::normalize(TripleName); 27792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 27892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer ToolName = argv[0]; 27992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 28092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // Defaults to a.out if no filenames specified. 28192e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (InputFilenames.size() == 0) 28292e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer InputFilenames.push_back("a.out"); 28392e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 28492e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // -d is the only flag that is currently implemented, so just print help if 28592e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer // it is not set. 28692e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer if (!Disassemble) { 28792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer cl::PrintHelpMessage(); 28892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return 2; 28992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer } 29092e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 2910b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer if (MachO) 2920b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer std::for_each(InputFilenames.begin(), InputFilenames.end(), 2930b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer DisassembleInputMachO); 2940b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer else 2950b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer std::for_each(InputFilenames.begin(), InputFilenames.end(), 2960b8b771e9f2f251460a6f200c45efe9d55640d60Benjamin Kramer DisassembleInputLibObject); 29792e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer 29892e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer return 0; 29992e1deb05182c116bf39bec5f4df3769b5abc7f4Michael J. Spencer} 300