| //===-- MachODump.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 file implements the MachO-specific dumper for llvm-objdump. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm-objdump.h" |
| #include "MCFunction.h" |
| #include "llvm/Support/MachO.h" |
| #include "llvm/Object/MachO.h" |
| #include "llvm/ADT/OwningPtr.h" |
| #include "llvm/ADT/Triple.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/DebugInfo/DIContext.h" |
| #include "llvm/MC/MCAsmInfo.h" |
| #include "llvm/MC/MCDisassembler.h" |
| #include "llvm/MC/MCInst.h" |
| #include "llvm/MC/MCInstPrinter.h" |
| #include "llvm/MC/MCInstrAnalysis.h" |
| #include "llvm/MC/MCInstrDesc.h" |
| #include "llvm/MC/MCInstrInfo.h" |
| #include "llvm/MC/MCRegisterInfo.h" |
| #include "llvm/MC/MCSubtargetInfo.h" |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/Debug.h" |
| #include "llvm/Support/Format.h" |
| #include "llvm/Support/GraphWriter.h" |
| #include "llvm/Support/MemoryBuffer.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 <cstring> |
| using namespace llvm; |
| using namespace object; |
| |
| static cl::opt<bool> |
| CFG("cfg", cl::desc("Create a CFG for every symbol in the object file and" |
| "write it to a graphviz file (MachO-only)")); |
| |
| static cl::opt<bool> |
| UseDbg("g", cl::desc("Print line information from debug info if available")); |
| |
| static cl::opt<std::string> |
| DSYMFile("dsym", cl::desc("Use .dSYM file for debug info")); |
| |
| static const Target *GetTarget(const MachOObject *MachOObj) { |
| // Figure out the target triple. |
| if (TripleName.empty()) { |
| llvm::Triple TT("unknown-unknown-unknown"); |
| switch (MachOObj->getHeader().CPUType) { |
| case llvm::MachO::CPUTypeI386: |
| TT.setArch(Triple::ArchType(Triple::x86)); |
| break; |
| case llvm::MachO::CPUTypeX86_64: |
| TT.setArch(Triple::ArchType(Triple::x86_64)); |
| break; |
| case llvm::MachO::CPUTypeARM: |
| TT.setArch(Triple::ArchType(Triple::arm)); |
| break; |
| case llvm::MachO::CPUTypePowerPC: |
| TT.setArch(Triple::ArchType(Triple::ppc)); |
| break; |
| case llvm::MachO::CPUTypePowerPC64: |
| TT.setArch(Triple::ArchType(Triple::ppc64)); |
| break; |
| } |
| TripleName = TT.str(); |
| } |
| |
| // Get the target specific parser. |
| std::string Error; |
| const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); |
| if (TheTarget) |
| return TheTarget; |
| |
| errs() << "llvm-objdump: error: unable to get target for '" << TripleName |
| << "', see --version and --triple.\n"; |
| return 0; |
| } |
| |
| struct SymbolSorter { |
| bool operator()(const SymbolRef &A, const SymbolRef &B) { |
| SymbolRef::Type AType, BType; |
| A.getType(AType); |
| B.getType(BType); |
| |
| uint64_t AAddr, BAddr; |
| if (AType != SymbolRef::ST_Function) |
| AAddr = 0; |
| else |
| A.getAddress(AAddr); |
| if (BType != SymbolRef::ST_Function) |
| BAddr = 0; |
| else |
| B.getAddress(BAddr); |
| return AAddr < BAddr; |
| } |
| }; |
| |
| // Print additional information about an address, if available. |
| static void DumpAddress(uint64_t Address, ArrayRef<SectionRef> Sections, |
| MachOObject *MachOObj, raw_ostream &OS) { |
| for (unsigned i = 0; i != Sections.size(); ++i) { |
| uint64_t SectAddr = 0, SectSize = 0; |
| Sections[i].getAddress(SectAddr); |
| Sections[i].getSize(SectSize); |
| uint64_t addr = SectAddr; |
| if (SectAddr <= Address && |
| SectAddr + SectSize > Address) { |
| StringRef bytes, name; |
| Sections[i].getContents(bytes); |
| Sections[i].getName(name); |
| // Print constant strings. |
| if (!name.compare("__cstring")) |
| OS << '"' << bytes.substr(addr, bytes.find('\0', addr)) << '"'; |
| // Print constant CFStrings. |
| if (!name.compare("__cfstring")) |
| OS << "@\"" << bytes.substr(addr, bytes.find('\0', addr)) << '"'; |
| } |
| } |
| } |
| |
| typedef std::map<uint64_t, MCFunction*> FunctionMapTy; |
| typedef SmallVector<MCFunction, 16> FunctionListTy; |
| static void createMCFunctionAndSaveCalls(StringRef Name, |
| const MCDisassembler *DisAsm, |
| MemoryObject &Object, uint64_t Start, |
| uint64_t End, |
| MCInstrAnalysis *InstrAnalysis, |
| uint64_t Address, |
| raw_ostream &DebugOut, |
| FunctionMapTy &FunctionMap, |
| FunctionListTy &Functions) { |
| SmallVector<uint64_t, 16> Calls; |
| MCFunction f = |
| MCFunction::createFunctionFromMC(Name, DisAsm, Object, Start, End, |
| InstrAnalysis, DebugOut, Calls); |
| Functions.push_back(f); |
| FunctionMap[Address] = &Functions.back(); |
| |
| // Add the gathered callees to the map. |
| for (unsigned i = 0, e = Calls.size(); i != e; ++i) |
| FunctionMap.insert(std::make_pair(Calls[i], (MCFunction*)0)); |
| } |
| |
| // Write a graphviz file for the CFG inside an MCFunction. |
| static void emitDOTFile(const char *FileName, const MCFunction &f, |
| MCInstPrinter *IP) { |
| // Start a new dot file. |
| std::string Error; |
| raw_fd_ostream Out(FileName, Error); |
| if (!Error.empty()) { |
| errs() << "llvm-objdump: warning: " << Error << '\n'; |
| return; |
| } |
| |
| Out << "digraph " << f.getName() << " {\n"; |
| Out << "graph [ rankdir = \"LR\" ];\n"; |
| for (MCFunction::iterator i = f.begin(), e = f.end(); i != e; ++i) { |
| bool hasPreds = false; |
| // Only print blocks that have predecessors. |
| // FIXME: Slow. |
| for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe; |
| ++pi) |
| if (pi->second.contains(i->first)) { |
| hasPreds = true; |
| break; |
| } |
| |
| if (!hasPreds && i != f.begin()) |
| continue; |
| |
| Out << '"' << i->first << "\" [ label=\"<a>"; |
| // Print instructions. |
| for (unsigned ii = 0, ie = i->second.getInsts().size(); ii != ie; |
| ++ii) { |
| // Escape special chars and print the instruction in mnemonic form. |
| std::string Str; |
| raw_string_ostream OS(Str); |
| IP->printInst(&i->second.getInsts()[ii].Inst, OS, ""); |
| Out << DOT::EscapeString(OS.str()) << '|'; |
| } |
| Out << "<o>\" shape=\"record\" ];\n"; |
| |
| // Add edges. |
| for (MCBasicBlock::succ_iterator si = i->second.succ_begin(), |
| se = i->second.succ_end(); si != se; ++si) |
| Out << i->first << ":o -> " << *si <<":a\n"; |
| } |
| Out << "}\n"; |
| } |
| |
| static void getSectionsAndSymbols(const macho::Header &Header, |
| MachOObjectFile *MachOObj, |
| InMemoryStruct<macho::SymtabLoadCommand> *SymtabLC, |
| std::vector<SectionRef> &Sections, |
| std::vector<SymbolRef> &Symbols, |
| SmallVectorImpl<uint64_t> &FoundFns) { |
| error_code ec; |
| for (symbol_iterator SI = MachOObj->begin_symbols(), |
| SE = MachOObj->end_symbols(); SI != SE; SI.increment(ec)) |
| Symbols.push_back(*SI); |
| |
| for (section_iterator SI = MachOObj->begin_sections(), |
| SE = MachOObj->end_sections(); SI != SE; SI.increment(ec)) { |
| SectionRef SR = *SI; |
| StringRef SectName; |
| SR.getName(SectName); |
| Sections.push_back(*SI); |
| } |
| |
| for (unsigned i = 0; i != Header.NumLoadCommands; ++i) { |
| const MachOObject::LoadCommandInfo &LCI = |
| MachOObj->getObject()->getLoadCommandInfo(i); |
| if (LCI.Command.Type == macho::LCT_FunctionStarts) { |
| // We found a function starts segment, parse the addresses for later |
| // consumption. |
| InMemoryStruct<macho::LinkeditDataLoadCommand> LLC; |
| MachOObj->getObject()->ReadLinkeditDataLoadCommand(LCI, LLC); |
| |
| MachOObj->getObject()->ReadULEB128s(LLC->DataOffset, FoundFns); |
| } |
| } |
| } |
| |
| void llvm::DisassembleInputMachO(StringRef Filename) { |
| OwningPtr<MemoryBuffer> Buff; |
| |
| if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) { |
| errs() << "llvm-objdump: " << Filename << ": " << ec.message() << "\n"; |
| return; |
| } |
| |
| OwningPtr<MachOObjectFile> MachOOF(static_cast<MachOObjectFile*>( |
| ObjectFile::createMachOObjectFile(Buff.take()))); |
| MachOObject *MachOObj = MachOOF->getObject(); |
| |
| const Target *TheTarget = GetTarget(MachOObj); |
| if (!TheTarget) { |
| // GetTarget prints out stuff. |
| return; |
| } |
| OwningPtr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo()); |
| OwningPtr<MCInstrAnalysis> |
| InstrAnalysis(TheTarget->createMCInstrAnalysis(InstrInfo.get())); |
| |
| // Set up disassembler. |
| OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName)); |
| OwningPtr<const MCSubtargetInfo> |
| STI(TheTarget->createMCSubtargetInfo(TripleName, "", "")); |
| OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI)); |
| OwningPtr<const MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName)); |
| int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); |
| OwningPtr<MCInstPrinter> |
| IP(TheTarget->createMCInstPrinter(AsmPrinterVariant, *AsmInfo, *InstrInfo, |
| *MRI, *STI)); |
| |
| if (!InstrAnalysis || !AsmInfo || !STI || !DisAsm || !IP) { |
| errs() << "error: couldn't initialize disassembler for target " |
| << TripleName << '\n'; |
| return; |
| } |
| |
| outs() << '\n' << Filename << ":\n\n"; |
| |
| const macho::Header &Header = MachOObj->getHeader(); |
| |
| const MachOObject::LoadCommandInfo *SymtabLCI = 0; |
| // First, find the symbol table segment. |
| for (unsigned i = 0; i != Header.NumLoadCommands; ++i) { |
| const MachOObject::LoadCommandInfo &LCI = MachOObj->getLoadCommandInfo(i); |
| if (LCI.Command.Type == macho::LCT_Symtab) { |
| SymtabLCI = &LCI; |
| break; |
| } |
| } |
| |
| // Read and register the symbol table data. |
| InMemoryStruct<macho::SymtabLoadCommand> SymtabLC; |
| MachOObj->ReadSymtabLoadCommand(*SymtabLCI, SymtabLC); |
| MachOObj->RegisterStringTable(*SymtabLC); |
| |
| std::vector<SectionRef> Sections; |
| std::vector<SymbolRef> Symbols; |
| SmallVector<uint64_t, 8> FoundFns; |
| |
| getSectionsAndSymbols(Header, MachOOF.get(), &SymtabLC, Sections, Symbols, |
| FoundFns); |
| |
| // Make a copy of the unsorted symbol list. FIXME: duplication |
| std::vector<SymbolRef> UnsortedSymbols(Symbols); |
| // Sort the symbols by address, just in case they didn't come in that way. |
| std::sort(Symbols.begin(), Symbols.end(), SymbolSorter()); |
| |
| #ifndef NDEBUG |
| raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); |
| #else |
| raw_ostream &DebugOut = nulls(); |
| #endif |
| |
| StringRef DebugAbbrevSection, DebugInfoSection, DebugArangesSection, |
| DebugLineSection, DebugStrSection; |
| OwningPtr<DIContext> diContext; |
| OwningPtr<MachOObjectFile> DSYMObj; |
| MachOObject *DbgInfoObj = MachOObj; |
| // Try to find debug info and set up the DIContext for it. |
| if (UseDbg) { |
| ArrayRef<SectionRef> DebugSections = Sections; |
| std::vector<SectionRef> DSYMSections; |
| |
| // A separate DSym file path was specified, parse it as a macho file, |
| // get the sections and supply it to the section name parsing machinery. |
| if (!DSYMFile.empty()) { |
| OwningPtr<MemoryBuffer> Buf; |
| if (error_code ec = MemoryBuffer::getFileOrSTDIN(DSYMFile.c_str(), Buf)) { |
| errs() << "llvm-objdump: " << Filename << ": " << ec.message() << '\n'; |
| return; |
| } |
| DSYMObj.reset(static_cast<MachOObjectFile*>( |
| ObjectFile::createMachOObjectFile(Buf.take()))); |
| const macho::Header &Header = DSYMObj->getObject()->getHeader(); |
| |
| std::vector<SymbolRef> Symbols; |
| SmallVector<uint64_t, 8> FoundFns; |
| getSectionsAndSymbols(Header, DSYMObj.get(), 0, DSYMSections, Symbols, |
| FoundFns); |
| DebugSections = DSYMSections; |
| DbgInfoObj = DSYMObj.get()->getObject(); |
| } |
| |
| // Find the named debug info sections. |
| for (unsigned SectIdx = 0; SectIdx != DebugSections.size(); SectIdx++) { |
| StringRef SectName; |
| if (!DebugSections[SectIdx].getName(SectName)) { |
| if (SectName.equals("__DWARF,__debug_abbrev")) |
| DebugSections[SectIdx].getContents(DebugAbbrevSection); |
| else if (SectName.equals("__DWARF,__debug_info")) |
| DebugSections[SectIdx].getContents(DebugInfoSection); |
| else if (SectName.equals("__DWARF,__debug_aranges")) |
| DebugSections[SectIdx].getContents(DebugArangesSection); |
| else if (SectName.equals("__DWARF,__debug_line")) |
| DebugSections[SectIdx].getContents(DebugLineSection); |
| else if (SectName.equals("__DWARF,__debug_str")) |
| DebugSections[SectIdx].getContents(DebugStrSection); |
| } |
| } |
| |
| // Setup the DIContext. |
| diContext.reset(DIContext::getDWARFContext(DbgInfoObj->isLittleEndian(), |
| DebugInfoSection, |
| DebugAbbrevSection, |
| DebugArangesSection, |
| DebugLineSection, |
| DebugStrSection)); |
| } |
| |
| FunctionMapTy FunctionMap; |
| FunctionListTy Functions; |
| |
| for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { |
| StringRef SectName; |
| if (Sections[SectIdx].getName(SectName) || |
| SectName.compare("__TEXT,__text")) |
| continue; // Skip non-text sections |
| |
| // Insert the functions from the function starts segment into our map. |
| uint64_t VMAddr; |
| Sections[SectIdx].getAddress(VMAddr); |
| for (unsigned i = 0, e = FoundFns.size(); i != e; ++i) { |
| StringRef SectBegin; |
| Sections[SectIdx].getContents(SectBegin); |
| uint64_t Offset = (uint64_t)SectBegin.data(); |
| FunctionMap.insert(std::make_pair(VMAddr + FoundFns[i]-Offset, |
| (MCFunction*)0)); |
| } |
| |
| StringRef Bytes; |
| Sections[SectIdx].getContents(Bytes); |
| StringRefMemoryObject memoryObject(Bytes); |
| bool symbolTableWorked = false; |
| |
| // Parse relocations. |
| std::vector<std::pair<uint64_t, SymbolRef> > Relocs; |
| error_code ec; |
| for (relocation_iterator RI = Sections[SectIdx].begin_relocations(), |
| RE = Sections[SectIdx].end_relocations(); RI != RE; RI.increment(ec)) { |
| uint64_t RelocOffset, SectionAddress; |
| RI->getAddress(RelocOffset); |
| Sections[SectIdx].getAddress(SectionAddress); |
| RelocOffset -= SectionAddress; |
| |
| SymbolRef RelocSym; |
| RI->getSymbol(RelocSym); |
| |
| Relocs.push_back(std::make_pair(RelocOffset, RelocSym)); |
| } |
| array_pod_sort(Relocs.begin(), Relocs.end()); |
| |
| // Disassemble symbol by symbol. |
| for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { |
| StringRef SymName; |
| Symbols[SymIdx].getName(SymName); |
| |
| SymbolRef::Type ST; |
| Symbols[SymIdx].getType(ST); |
| if (ST != SymbolRef::ST_Function) |
| continue; |
| |
| // Make sure the symbol is defined in this section. |
| bool containsSym = false; |
| Sections[SectIdx].containsSymbol(Symbols[SymIdx], containsSym); |
| if (!containsSym) |
| continue; |
| |
| // Start at the address of the symbol relative to the section's address. |
| uint64_t SectionAddress = 0; |
| uint64_t Start = 0; |
| Sections[SectIdx].getAddress(SectionAddress); |
| Symbols[SymIdx].getAddress(Start); |
| Start -= SectionAddress; |
| |
| // Stop disassembling either at the beginning of the next symbol or at |
| // the end of the section. |
| bool containsNextSym = true; |
| uint64_t NextSym = 0; |
| uint64_t NextSymIdx = SymIdx+1; |
| while (Symbols.size() > NextSymIdx) { |
| SymbolRef::Type NextSymType; |
| Symbols[NextSymIdx].getType(NextSymType); |
| if (NextSymType == SymbolRef::ST_Function) { |
| Sections[SectIdx].containsSymbol(Symbols[NextSymIdx], |
| containsNextSym); |
| Symbols[NextSymIdx].getAddress(NextSym); |
| NextSym -= SectionAddress; |
| break; |
| } |
| ++NextSymIdx; |
| } |
| |
| uint64_t SectSize; |
| Sections[SectIdx].getSize(SectSize); |
| uint64_t End = containsNextSym ? NextSym : SectSize; |
| uint64_t Size; |
| |
| symbolTableWorked = true; |
| |
| if (!CFG) { |
| // Normal disassembly, print addresses, bytes and mnemonic form. |
| StringRef SymName; |
| Symbols[SymIdx].getName(SymName); |
| |
| outs() << SymName << ":\n"; |
| DILineInfo lastLine; |
| for (uint64_t Index = Start; Index < End; Index += Size) { |
| MCInst Inst; |
| |
| if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, |
| DebugOut, nulls())) { |
| uint64_t SectAddress = 0; |
| Sections[SectIdx].getAddress(SectAddress); |
| outs() << format("%8" PRIx64 ":\t", SectAddress + Index); |
| |
| DumpBytes(StringRef(Bytes.data() + Index, Size)); |
| IP->printInst(&Inst, outs(), ""); |
| |
| // Print debug info. |
| if (diContext) { |
| DILineInfo dli = |
| diContext->getLineInfoForAddress(SectAddress + Index); |
| // Print valid line info if it changed. |
| if (dli != lastLine && dli.getLine() != 0) |
| outs() << "\t## " << dli.getFileName() << ':' |
| << dli.getLine() << ':' << dli.getColumn(); |
| lastLine = dli; |
| } |
| outs() << "\n"; |
| } else { |
| errs() << "llvm-objdump: warning: invalid instruction encoding\n"; |
| if (Size == 0) |
| Size = 1; // skip illegible bytes |
| } |
| } |
| } else { |
| // Create CFG and use it for disassembly. |
| StringRef SymName; |
| Symbols[SymIdx].getName(SymName); |
| createMCFunctionAndSaveCalls( |
| SymName, DisAsm.get(), memoryObject, Start, End, |
| InstrAnalysis.get(), Start, DebugOut, FunctionMap, Functions); |
| } |
| } |
| |
| if (CFG) { |
| if (!symbolTableWorked) { |
| // Reading the symbol table didn't work, create a big __TEXT symbol. |
| uint64_t SectSize = 0, SectAddress = 0; |
| Sections[SectIdx].getSize(SectSize); |
| Sections[SectIdx].getAddress(SectAddress); |
| createMCFunctionAndSaveCalls("__TEXT", DisAsm.get(), memoryObject, |
| 0, SectSize, |
| InstrAnalysis.get(), |
| SectAddress, DebugOut, |
| FunctionMap, Functions); |
| } |
| for (std::map<uint64_t, MCFunction*>::iterator mi = FunctionMap.begin(), |
| me = FunctionMap.end(); mi != me; ++mi) |
| if (mi->second == 0) { |
| // Create functions for the remaining callees we have gathered, |
| // but we didn't find a name for them. |
| uint64_t SectSize = 0; |
| Sections[SectIdx].getSize(SectSize); |
| |
| SmallVector<uint64_t, 16> Calls; |
| MCFunction f = |
| MCFunction::createFunctionFromMC("unknown", DisAsm.get(), |
| memoryObject, mi->first, |
| SectSize, |
| InstrAnalysis.get(), DebugOut, |
| Calls); |
| Functions.push_back(f); |
| mi->second = &Functions.back(); |
| for (unsigned i = 0, e = Calls.size(); i != e; ++i) { |
| std::pair<uint64_t, MCFunction*> p(Calls[i], (MCFunction*)0); |
| if (FunctionMap.insert(p).second) |
| mi = FunctionMap.begin(); |
| } |
| } |
| |
| DenseSet<uint64_t> PrintedBlocks; |
| for (unsigned ffi = 0, ffe = Functions.size(); ffi != ffe; ++ffi) { |
| MCFunction &f = Functions[ffi]; |
| for (MCFunction::iterator fi = f.begin(), fe = f.end(); fi != fe; ++fi){ |
| if (!PrintedBlocks.insert(fi->first).second) |
| continue; // We already printed this block. |
| |
| // We assume a block has predecessors when it's the first block after |
| // a symbol. |
| bool hasPreds = FunctionMap.find(fi->first) != FunctionMap.end(); |
| |
| // See if this block has predecessors. |
| // FIXME: Slow. |
| for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe; |
| ++pi) |
| if (pi->second.contains(fi->first)) { |
| hasPreds = true; |
| break; |
| } |
| |
| uint64_t SectSize = 0, SectAddress; |
| Sections[SectIdx].getSize(SectSize); |
| Sections[SectIdx].getAddress(SectAddress); |
| |
| // No predecessors, this is a data block. Print as .byte directives. |
| if (!hasPreds) { |
| uint64_t End = llvm::next(fi) == fe ? SectSize : |
| llvm::next(fi)->first; |
| outs() << "# " << End-fi->first << " bytes of data:\n"; |
| for (unsigned pos = fi->first; pos != End; ++pos) { |
| outs() << format("%8x:\t", SectAddress + pos); |
| DumpBytes(StringRef(Bytes.data() + pos, 1)); |
| outs() << format("\t.byte 0x%02x\n", (uint8_t)Bytes[pos]); |
| } |
| continue; |
| } |
| |
| if (fi->second.contains(fi->first)) // Print a header for simple loops |
| outs() << "# Loop begin:\n"; |
| |
| DILineInfo lastLine; |
| // Walk over the instructions and print them. |
| for (unsigned ii = 0, ie = fi->second.getInsts().size(); ii != ie; |
| ++ii) { |
| const MCDecodedInst &Inst = fi->second.getInsts()[ii]; |
| |
| // If there's a symbol at this address, print its name. |
| if (FunctionMap.find(SectAddress + Inst.Address) != |
| FunctionMap.end()) |
| outs() << FunctionMap[SectAddress + Inst.Address]-> getName() |
| << ":\n"; |
| |
| outs() << format("%8" PRIx64 ":\t", SectAddress + Inst.Address); |
| DumpBytes(StringRef(Bytes.data() + Inst.Address, Inst.Size)); |
| |
| if (fi->second.contains(fi->first)) // Indent simple loops. |
| outs() << '\t'; |
| |
| IP->printInst(&Inst.Inst, outs(), ""); |
| |
| // Look for relocations inside this instructions, if there is one |
| // print its target and additional information if available. |
| for (unsigned j = 0; j != Relocs.size(); ++j) |
| if (Relocs[j].first >= SectAddress + Inst.Address && |
| Relocs[j].first < SectAddress + Inst.Address + Inst.Size) { |
| StringRef SymName; |
| uint64_t Addr; |
| Relocs[j].second.getAddress(Addr); |
| Relocs[j].second.getName(SymName); |
| |
| outs() << "\t# " << SymName << ' '; |
| DumpAddress(Addr, Sections, MachOObj, outs()); |
| } |
| |
| // If this instructions contains an address, see if we can evaluate |
| // it and print additional information. |
| uint64_t targ = InstrAnalysis->evaluateBranch(Inst.Inst, |
| Inst.Address, |
| Inst.Size); |
| if (targ != -1ULL) |
| DumpAddress(targ, Sections, MachOObj, outs()); |
| |
| // Print debug info. |
| if (diContext) { |
| DILineInfo dli = |
| diContext->getLineInfoForAddress(SectAddress + Inst.Address); |
| // Print valid line info if it changed. |
| if (dli != lastLine && dli.getLine() != 0) |
| outs() << "\t## " << dli.getFileName() << ':' |
| << dli.getLine() << ':' << dli.getColumn(); |
| lastLine = dli; |
| } |
| |
| outs() << '\n'; |
| } |
| } |
| |
| emitDOTFile((f.getName().str() + ".dot").c_str(), f, IP.get()); |
| } |
| } |
| } |
| } |
