1 //===-- MachODump.cpp - Object file dumping utility for llvm --------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements the MachO-specific dumper for llvm-objdump. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm-objdump.h" 15 #include "MCFunction.h" 16 #include "llvm/Support/MachO.h" 17 #include "llvm/Object/MachOObject.h" 18 #include "llvm/ADT/OwningPtr.h" 19 #include "llvm/ADT/Triple.h" 20 #include "llvm/ADT/STLExtras.h" 21 #include "llvm/DebugInfo/DIContext.h" 22 #include "llvm/MC/MCAsmInfo.h" 23 #include "llvm/MC/MCDisassembler.h" 24 #include "llvm/MC/MCInst.h" 25 #include "llvm/MC/MCInstPrinter.h" 26 #include "llvm/MC/MCInstrAnalysis.h" 27 #include "llvm/MC/MCInstrDesc.h" 28 #include "llvm/MC/MCInstrInfo.h" 29 #include "llvm/MC/MCSubtargetInfo.h" 30 #include "llvm/Support/CommandLine.h" 31 #include "llvm/Support/Debug.h" 32 #include "llvm/Support/Format.h" 33 #include "llvm/Support/GraphWriter.h" 34 #include "llvm/Support/MemoryBuffer.h" 35 #include "llvm/Support/TargetRegistry.h" 36 #include "llvm/Support/TargetSelect.h" 37 #include "llvm/Support/raw_ostream.h" 38 #include "llvm/Support/system_error.h" 39 #include <algorithm> 40 #include <cstring> 41 using namespace llvm; 42 using namespace object; 43 44 static cl::opt<bool> 45 CFG("cfg", cl::desc("Create a CFG for every symbol in the object file and" 46 "write it to a graphviz file (MachO-only)")); 47 48 static cl::opt<bool> 49 UseDbg("g", cl::desc("Print line information from debug info if available")); 50 51 static cl::opt<std::string> 52 DSYMFile("dsym", cl::desc("Use .dSYM file for debug info")); 53 54 static const Target *GetTarget(const MachOObject *MachOObj) { 55 // Figure out the target triple. 56 llvm::Triple TT("unknown-unknown-unknown"); 57 switch (MachOObj->getHeader().CPUType) { 58 case llvm::MachO::CPUTypeI386: 59 TT.setArch(Triple::ArchType(Triple::x86)); 60 break; 61 case llvm::MachO::CPUTypeX86_64: 62 TT.setArch(Triple::ArchType(Triple::x86_64)); 63 break; 64 case llvm::MachO::CPUTypeARM: 65 TT.setArch(Triple::ArchType(Triple::arm)); 66 break; 67 case llvm::MachO::CPUTypePowerPC: 68 TT.setArch(Triple::ArchType(Triple::ppc)); 69 break; 70 case llvm::MachO::CPUTypePowerPC64: 71 TT.setArch(Triple::ArchType(Triple::ppc64)); 72 break; 73 } 74 75 TripleName = TT.str(); 76 77 // Get the target specific parser. 78 std::string Error; 79 const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); 80 if (TheTarget) 81 return TheTarget; 82 83 errs() << "llvm-objdump: error: unable to get target for '" << TripleName 84 << "', see --version and --triple.\n"; 85 return 0; 86 } 87 88 struct Section { 89 char Name[16]; 90 uint64_t Address; 91 uint64_t Size; 92 uint32_t Offset; 93 uint32_t NumRelocs; 94 uint64_t RelocTableOffset; 95 }; 96 97 struct Symbol { 98 uint64_t Value; 99 uint32_t StringIndex; 100 uint8_t SectionIndex; 101 bool operator<(const Symbol &RHS) const { return Value < RHS.Value; } 102 }; 103 104 template <typename T> 105 static Section copySection(const T &Sect) { 106 Section S; 107 memcpy(S.Name, Sect->Name, 16); 108 S.Address = Sect->Address; 109 S.Size = Sect->Size; 110 S.Offset = Sect->Offset; 111 S.NumRelocs = Sect->NumRelocationTableEntries; 112 S.RelocTableOffset = Sect->RelocationTableOffset; 113 return S; 114 } 115 116 template <typename T> 117 static Symbol copySymbol(const T &STE) { 118 Symbol S; 119 S.StringIndex = STE->StringIndex; 120 S.SectionIndex = STE->SectionIndex; 121 S.Value = STE->Value; 122 return S; 123 } 124 125 // Print additional information about an address, if available. 126 static void DumpAddress(uint64_t Address, ArrayRef<Section> Sections, 127 MachOObject *MachOObj, raw_ostream &OS) { 128 for (unsigned i = 0; i != Sections.size(); ++i) { 129 uint64_t addr = Address-Sections[i].Address; 130 if (Sections[i].Address <= Address && 131 Sections[i].Address + Sections[i].Size > Address) { 132 StringRef bytes = MachOObj->getData(Sections[i].Offset, 133 Sections[i].Size); 134 // Print constant strings. 135 if (!strcmp(Sections[i].Name, "__cstring")) 136 OS << '"' << bytes.substr(addr, bytes.find('\0', addr)) << '"'; 137 // Print constant CFStrings. 138 if (!strcmp(Sections[i].Name, "__cfstring")) 139 OS << "@\"" << bytes.substr(addr, bytes.find('\0', addr)) << '"'; 140 } 141 } 142 } 143 144 typedef std::map<uint64_t, MCFunction*> FunctionMapTy; 145 typedef SmallVector<MCFunction, 16> FunctionListTy; 146 static void createMCFunctionAndSaveCalls(StringRef Name, 147 const MCDisassembler *DisAsm, 148 MemoryObject &Object, uint64_t Start, 149 uint64_t End, 150 MCInstrAnalysis *InstrAnalysis, 151 uint64_t Address, 152 raw_ostream &DebugOut, 153 FunctionMapTy &FunctionMap, 154 FunctionListTy &Functions) { 155 SmallVector<uint64_t, 16> Calls; 156 MCFunction f = 157 MCFunction::createFunctionFromMC(Name, DisAsm, Object, Start, End, 158 InstrAnalysis, DebugOut, Calls); 159 Functions.push_back(f); 160 FunctionMap[Address] = &Functions.back(); 161 162 // Add the gathered callees to the map. 163 for (unsigned i = 0, e = Calls.size(); i != e; ++i) 164 FunctionMap.insert(std::make_pair(Calls[i], (MCFunction*)0)); 165 } 166 167 // Write a graphviz file for the CFG inside an MCFunction. 168 static void emitDOTFile(const char *FileName, const MCFunction &f, 169 MCInstPrinter *IP) { 170 // Start a new dot file. 171 std::string Error; 172 raw_fd_ostream Out(FileName, Error); 173 if (!Error.empty()) { 174 errs() << "llvm-objdump: warning: " << Error << '\n'; 175 return; 176 } 177 178 Out << "digraph " << f.getName() << " {\n"; 179 Out << "graph [ rankdir = \"LR\" ];\n"; 180 for (MCFunction::iterator i = f.begin(), e = f.end(); i != e; ++i) { 181 bool hasPreds = false; 182 // Only print blocks that have predecessors. 183 // FIXME: Slow. 184 for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe; 185 ++pi) 186 if (pi->second.contains(i->first)) { 187 hasPreds = true; 188 break; 189 } 190 191 if (!hasPreds && i != f.begin()) 192 continue; 193 194 Out << '"' << i->first << "\" [ label=\"<a>"; 195 // Print instructions. 196 for (unsigned ii = 0, ie = i->second.getInsts().size(); ii != ie; 197 ++ii) { 198 // Escape special chars and print the instruction in mnemonic form. 199 std::string Str; 200 raw_string_ostream OS(Str); 201 IP->printInst(&i->second.getInsts()[ii].Inst, OS, ""); 202 Out << DOT::EscapeString(OS.str()) << '|'; 203 } 204 Out << "<o>\" shape=\"record\" ];\n"; 205 206 // Add edges. 207 for (MCBasicBlock::succ_iterator si = i->second.succ_begin(), 208 se = i->second.succ_end(); si != se; ++si) 209 Out << i->first << ":o -> " << *si <<":a\n"; 210 } 211 Out << "}\n"; 212 } 213 214 static void getSectionsAndSymbols(const macho::Header &Header, 215 MachOObject *MachOObj, 216 InMemoryStruct<macho::SymtabLoadCommand> *SymtabLC, 217 std::vector<Section> &Sections, 218 std::vector<Symbol> &Symbols, 219 SmallVectorImpl<uint64_t> &FoundFns) { 220 // Make a list of all symbols in the object file. 221 for (unsigned i = 0; i != Header.NumLoadCommands; ++i) { 222 const MachOObject::LoadCommandInfo &LCI = MachOObj->getLoadCommandInfo(i); 223 if (LCI.Command.Type == macho::LCT_Segment) { 224 InMemoryStruct<macho::SegmentLoadCommand> SegmentLC; 225 MachOObj->ReadSegmentLoadCommand(LCI, SegmentLC); 226 227 // Store the sections in this segment. 228 for (unsigned SectNum = 0; SectNum != SegmentLC->NumSections; ++SectNum) { 229 InMemoryStruct<macho::Section> Sect; 230 MachOObj->ReadSection(LCI, SectNum, Sect); 231 Sections.push_back(copySection(Sect)); 232 233 } 234 } else if (LCI.Command.Type == macho::LCT_Segment64) { 235 InMemoryStruct<macho::Segment64LoadCommand> Segment64LC; 236 MachOObj->ReadSegment64LoadCommand(LCI, Segment64LC); 237 238 // Store the sections in this segment. 239 for (unsigned SectNum = 0; SectNum != Segment64LC->NumSections; 240 ++SectNum) { 241 InMemoryStruct<macho::Section64> Sect64; 242 MachOObj->ReadSection64(LCI, SectNum, Sect64); 243 Sections.push_back(copySection(Sect64)); 244 } 245 } else if (LCI.Command.Type == macho::LCT_FunctionStarts) { 246 // We found a function starts segment, parse the addresses for later 247 // consumption. 248 InMemoryStruct<macho::LinkeditDataLoadCommand> LLC; 249 MachOObj->ReadLinkeditDataLoadCommand(LCI, LLC); 250 251 MachOObj->ReadULEB128s(LLC->DataOffset, FoundFns); 252 } 253 } 254 // Store the symbols. 255 if (SymtabLC) { 256 for (unsigned i = 0; i != (*SymtabLC)->NumSymbolTableEntries; ++i) { 257 if (MachOObj->is64Bit()) { 258 InMemoryStruct<macho::Symbol64TableEntry> STE; 259 MachOObj->ReadSymbol64TableEntry((*SymtabLC)->SymbolTableOffset, i, 260 STE); 261 Symbols.push_back(copySymbol(STE)); 262 } else { 263 InMemoryStruct<macho::SymbolTableEntry> STE; 264 MachOObj->ReadSymbolTableEntry((*SymtabLC)->SymbolTableOffset, i, 265 STE); 266 Symbols.push_back(copySymbol(STE)); 267 } 268 } 269 } 270 } 271 272 void llvm::DisassembleInputMachO(StringRef Filename) { 273 OwningPtr<MemoryBuffer> Buff; 274 275 if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) { 276 errs() << "llvm-objdump: " << Filename << ": " << ec.message() << "\n"; 277 return; 278 } 279 280 OwningPtr<MachOObject> MachOObj(MachOObject::LoadFromBuffer(Buff.take())); 281 282 const Target *TheTarget = GetTarget(MachOObj.get()); 283 if (!TheTarget) { 284 // GetTarget prints out stuff. 285 return; 286 } 287 OwningPtr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo()); 288 OwningPtr<MCInstrAnalysis> 289 InstrAnalysis(TheTarget->createMCInstrAnalysis(InstrInfo.get())); 290 291 // Set up disassembler. 292 OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName)); 293 OwningPtr<const MCSubtargetInfo> 294 STI(TheTarget->createMCSubtargetInfo(TripleName, "", "")); 295 OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI)); 296 int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); 297 OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( 298 AsmPrinterVariant, *AsmInfo, *STI)); 299 300 if (!InstrAnalysis || !AsmInfo || !STI || !DisAsm || !IP) { 301 errs() << "error: couldn't initialize disassembler for target " 302 << TripleName << '\n'; 303 return; 304 } 305 306 outs() << '\n' << Filename << ":\n\n"; 307 308 const macho::Header &Header = MachOObj->getHeader(); 309 310 const MachOObject::LoadCommandInfo *SymtabLCI = 0; 311 // First, find the symbol table segment. 312 for (unsigned i = 0; i != Header.NumLoadCommands; ++i) { 313 const MachOObject::LoadCommandInfo &LCI = MachOObj->getLoadCommandInfo(i); 314 if (LCI.Command.Type == macho::LCT_Symtab) { 315 SymtabLCI = &LCI; 316 break; 317 } 318 } 319 320 // Read and register the symbol table data. 321 InMemoryStruct<macho::SymtabLoadCommand> SymtabLC; 322 MachOObj->ReadSymtabLoadCommand(*SymtabLCI, SymtabLC); 323 MachOObj->RegisterStringTable(*SymtabLC); 324 325 std::vector<Section> Sections; 326 std::vector<Symbol> Symbols; 327 SmallVector<uint64_t, 8> FoundFns; 328 329 getSectionsAndSymbols(Header, MachOObj.get(), &SymtabLC, Sections, Symbols, 330 FoundFns); 331 332 // Make a copy of the unsorted symbol list. FIXME: duplication 333 std::vector<Symbol> UnsortedSymbols(Symbols); 334 // Sort the symbols by address, just in case they didn't come in that way. 335 array_pod_sort(Symbols.begin(), Symbols.end()); 336 337 #ifndef NDEBUG 338 raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); 339 #else 340 raw_ostream &DebugOut = nulls(); 341 #endif 342 343 StringRef DebugAbbrevSection, DebugInfoSection, DebugArangesSection, 344 DebugLineSection, DebugStrSection; 345 OwningPtr<DIContext> diContext; 346 OwningPtr<MachOObject> DSYMObj; 347 MachOObject *DbgInfoObj = MachOObj.get(); 348 // Try to find debug info and set up the DIContext for it. 349 if (UseDbg) { 350 ArrayRef<Section> DebugSections = Sections; 351 std::vector<Section> DSYMSections; 352 353 // A separate DSym file path was specified, parse it as a macho file, 354 // get the sections and supply it to the section name parsing machinery. 355 if (!DSYMFile.empty()) { 356 OwningPtr<MemoryBuffer> Buf; 357 if (error_code ec = MemoryBuffer::getFileOrSTDIN(DSYMFile.c_str(), Buf)) { 358 errs() << "llvm-objdump: " << Filename << ": " << ec.message() << '\n'; 359 return; 360 } 361 DSYMObj.reset(MachOObject::LoadFromBuffer(Buf.take())); 362 const macho::Header &Header = DSYMObj->getHeader(); 363 364 std::vector<Symbol> Symbols; 365 SmallVector<uint64_t, 8> FoundFns; 366 getSectionsAndSymbols(Header, DSYMObj.get(), 0, DSYMSections, Symbols, 367 FoundFns); 368 DebugSections = DSYMSections; 369 DbgInfoObj = DSYMObj.get(); 370 } 371 372 // Find the named debug info sections. 373 for (unsigned SectIdx = 0; SectIdx != DebugSections.size(); SectIdx++) { 374 if (!strcmp(DebugSections[SectIdx].Name, "__debug_abbrev")) 375 DebugAbbrevSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 376 DebugSections[SectIdx].Size); 377 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_info")) 378 DebugInfoSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 379 DebugSections[SectIdx].Size); 380 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_aranges")) 381 DebugArangesSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 382 DebugSections[SectIdx].Size); 383 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_line")) 384 DebugLineSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 385 DebugSections[SectIdx].Size); 386 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_str")) 387 DebugStrSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 388 DebugSections[SectIdx].Size); 389 } 390 391 // Setup the DIContext. 392 diContext.reset(DIContext::getDWARFContext(DbgInfoObj->isLittleEndian(), 393 DebugInfoSection, 394 DebugAbbrevSection, 395 DebugArangesSection, 396 DebugLineSection, 397 DebugStrSection)); 398 } 399 400 FunctionMapTy FunctionMap; 401 FunctionListTy Functions; 402 403 for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { 404 if (strcmp(Sections[SectIdx].Name, "__text")) 405 continue; // Skip non-text sections 406 407 // Insert the functions from the function starts segment into our map. 408 uint64_t VMAddr = Sections[SectIdx].Address - Sections[SectIdx].Offset; 409 for (unsigned i = 0, e = FoundFns.size(); i != e; ++i) 410 FunctionMap.insert(std::make_pair(FoundFns[i]+VMAddr, (MCFunction*)0)); 411 412 StringRef Bytes = MachOObj->getData(Sections[SectIdx].Offset, 413 Sections[SectIdx].Size); 414 StringRefMemoryObject memoryObject(Bytes); 415 bool symbolTableWorked = false; 416 417 // Parse relocations. 418 std::vector<std::pair<uint64_t, uint32_t> > Relocs; 419 for (unsigned j = 0; j != Sections[SectIdx].NumRelocs; ++j) { 420 InMemoryStruct<macho::RelocationEntry> RE; 421 MachOObj->ReadRelocationEntry(Sections[SectIdx].RelocTableOffset, j, RE); 422 Relocs.push_back(std::make_pair(RE->Word0, RE->Word1 & 0xffffff)); 423 } 424 array_pod_sort(Relocs.begin(), Relocs.end()); 425 426 // Disassemble symbol by symbol. 427 for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { 428 // Make sure the symbol is defined in this section. 429 if ((unsigned)Symbols[SymIdx].SectionIndex - 1 != SectIdx) 430 continue; 431 432 // Start at the address of the symbol relative to the section's address. 433 uint64_t Start = Symbols[SymIdx].Value - Sections[SectIdx].Address; 434 // Stop disassembling either at the beginning of the next symbol or at 435 // the end of the section. 436 uint64_t End = (SymIdx+1 == Symbols.size() || 437 Symbols[SymIdx].SectionIndex != Symbols[SymIdx+1].SectionIndex) ? 438 Sections[SectIdx].Size : 439 Symbols[SymIdx+1].Value - Sections[SectIdx].Address; 440 uint64_t Size; 441 442 if (Start >= End) 443 continue; 444 445 symbolTableWorked = true; 446 447 if (!CFG) { 448 // Normal disassembly, print addresses, bytes and mnemonic form. 449 outs() << MachOObj->getStringAtIndex(Symbols[SymIdx].StringIndex) 450 << ":\n"; 451 DILineInfo lastLine; 452 for (uint64_t Index = Start; Index < End; Index += Size) { 453 MCInst Inst; 454 455 if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, 456 DebugOut, nulls())) { 457 outs() << format("%8llx:\t", Sections[SectIdx].Address + Index); 458 DumpBytes(StringRef(Bytes.data() + Index, Size)); 459 IP->printInst(&Inst, outs(), ""); 460 461 // Print debug info. 462 if (diContext) { 463 DILineInfo dli = 464 diContext->getLineInfoForAddress(Sections[SectIdx].Address + 465 Index); 466 // Print valid line info if it changed. 467 if (dli != lastLine && dli.getLine() != 0) 468 outs() << "\t## " << dli.getFileName() << ':' 469 << dli.getLine() << ':' << dli.getColumn(); 470 lastLine = dli; 471 } 472 outs() << "\n"; 473 } else { 474 errs() << "llvm-objdump: warning: invalid instruction encoding\n"; 475 if (Size == 0) 476 Size = 1; // skip illegible bytes 477 } 478 } 479 } else { 480 // Create CFG and use it for disassembly. 481 createMCFunctionAndSaveCalls( 482 MachOObj->getStringAtIndex(Symbols[SymIdx].StringIndex), 483 DisAsm.get(), memoryObject, Start, End, InstrAnalysis.get(), 484 Start, DebugOut, FunctionMap, Functions); 485 } 486 } 487 488 if (CFG) { 489 if (!symbolTableWorked) { 490 // Reading the symbol table didn't work, create a big __TEXT symbol. 491 createMCFunctionAndSaveCalls("__TEXT", DisAsm.get(), memoryObject, 492 0, Sections[SectIdx].Size, 493 InstrAnalysis.get(), 494 Sections[SectIdx].Offset, DebugOut, 495 FunctionMap, Functions); 496 } 497 for (std::map<uint64_t, MCFunction*>::iterator mi = FunctionMap.begin(), 498 me = FunctionMap.end(); mi != me; ++mi) 499 if (mi->second == 0) { 500 // Create functions for the remaining callees we have gathered, 501 // but we didn't find a name for them. 502 SmallVector<uint64_t, 16> Calls; 503 MCFunction f = 504 MCFunction::createFunctionFromMC("unknown", DisAsm.get(), 505 memoryObject, mi->first, 506 Sections[SectIdx].Size, 507 InstrAnalysis.get(), DebugOut, 508 Calls); 509 Functions.push_back(f); 510 mi->second = &Functions.back(); 511 for (unsigned i = 0, e = Calls.size(); i != e; ++i) { 512 std::pair<uint64_t, MCFunction*> p(Calls[i], (MCFunction*)0); 513 if (FunctionMap.insert(p).second) 514 mi = FunctionMap.begin(); 515 } 516 } 517 518 DenseSet<uint64_t> PrintedBlocks; 519 for (unsigned ffi = 0, ffe = Functions.size(); ffi != ffe; ++ffi) { 520 MCFunction &f = Functions[ffi]; 521 for (MCFunction::iterator fi = f.begin(), fe = f.end(); fi != fe; ++fi){ 522 if (!PrintedBlocks.insert(fi->first).second) 523 continue; // We already printed this block. 524 525 // We assume a block has predecessors when it's the first block after 526 // a symbol. 527 bool hasPreds = FunctionMap.find(fi->first) != FunctionMap.end(); 528 529 // See if this block has predecessors. 530 // FIXME: Slow. 531 for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe; 532 ++pi) 533 if (pi->second.contains(fi->first)) { 534 hasPreds = true; 535 break; 536 } 537 538 // No predecessors, this is a data block. Print as .byte directives. 539 if (!hasPreds) { 540 uint64_t End = llvm::next(fi) == fe ? Sections[SectIdx].Size : 541 llvm::next(fi)->first; 542 outs() << "# " << End-fi->first << " bytes of data:\n"; 543 for (unsigned pos = fi->first; pos != End; ++pos) { 544 outs() << format("%8x:\t", Sections[SectIdx].Address + pos); 545 DumpBytes(StringRef(Bytes.data() + pos, 1)); 546 outs() << format("\t.byte 0x%02x\n", (uint8_t)Bytes[pos]); 547 } 548 continue; 549 } 550 551 if (fi->second.contains(fi->first)) // Print a header for simple loops 552 outs() << "# Loop begin:\n"; 553 554 DILineInfo lastLine; 555 // Walk over the instructions and print them. 556 for (unsigned ii = 0, ie = fi->second.getInsts().size(); ii != ie; 557 ++ii) { 558 const MCDecodedInst &Inst = fi->second.getInsts()[ii]; 559 560 // If there's a symbol at this address, print its name. 561 if (FunctionMap.find(Sections[SectIdx].Address + Inst.Address) != 562 FunctionMap.end()) 563 outs() << FunctionMap[Sections[SectIdx].Address + Inst.Address]-> 564 getName() << ":\n"; 565 566 outs() << format("%8llx:\t", Sections[SectIdx].Address + 567 Inst.Address); 568 DumpBytes(StringRef(Bytes.data() + Inst.Address, Inst.Size)); 569 570 if (fi->second.contains(fi->first)) // Indent simple loops. 571 outs() << '\t'; 572 573 IP->printInst(&Inst.Inst, outs(), ""); 574 575 // Look for relocations inside this instructions, if there is one 576 // print its target and additional information if available. 577 for (unsigned j = 0; j != Relocs.size(); ++j) 578 if (Relocs[j].first >= Sections[SectIdx].Address + Inst.Address && 579 Relocs[j].first < Sections[SectIdx].Address + Inst.Address + 580 Inst.Size) { 581 outs() << "\t# " 582 << MachOObj->getStringAtIndex( 583 UnsortedSymbols[Relocs[j].second].StringIndex) 584 << ' '; 585 DumpAddress(UnsortedSymbols[Relocs[j].second].Value, Sections, 586 MachOObj.get(), outs()); 587 } 588 589 // If this instructions contains an address, see if we can evaluate 590 // it and print additional information. 591 uint64_t targ = InstrAnalysis->evaluateBranch(Inst.Inst, 592 Inst.Address, 593 Inst.Size); 594 if (targ != -1ULL) 595 DumpAddress(targ, Sections, MachOObj.get(), outs()); 596 597 // Print debug info. 598 if (diContext) { 599 DILineInfo dli = 600 diContext->getLineInfoForAddress(Sections[SectIdx].Address + 601 Inst.Address); 602 // Print valid line info if it changed. 603 if (dli != lastLine && dli.getLine() != 0) 604 outs() << "\t## " << dli.getFileName() << ':' 605 << dli.getLine() << ':' << dli.getColumn(); 606 lastLine = dli; 607 } 608 609 outs() << '\n'; 610 } 611 } 612 613 emitDOTFile((f.getName().str() + ".dot").c_str(), f, IP.get()); 614 } 615 } 616 } 617 } 618
