MachODump.cpp revision 91c603bcfe810c14ddcf7bf340dacbf10c7b5255
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> 41using namespace llvm; 42using namespace object; 43 44static 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 48static cl::opt<bool> 49 UseDbg("g", cl::desc("Print line information from debug info if available")); 50 51static cl::opt<std::string> 52 DSYMFile("dsym", cl::desc("Use .dSYM file for debug info")); 53 54static 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 88struct 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 97struct 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 104template <typename T> 105static 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 116template <typename T> 117static 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 addtitional information about an address, if available. 126static 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 144typedef std::map<uint64_t, MCFunction*> FunctionMapTy; 145typedef SmallVector<MCFunction, 16> FunctionListTy; 146static 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. 168static 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 214static 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 // Store the symbols in this section. 234 if (SymtabLC) { 235 for (unsigned i = 0; i != (*SymtabLC)->NumSymbolTableEntries; ++i) { 236 InMemoryStruct<macho::SymbolTableEntry> STE; 237 MachOObj->ReadSymbolTableEntry((*SymtabLC)->SymbolTableOffset, i, 238 STE); 239 Symbols.push_back(copySymbol(STE)); 240 } 241 } 242 } 243 } else if (LCI.Command.Type == macho::LCT_Segment64) { 244 InMemoryStruct<macho::Segment64LoadCommand> Segment64LC; 245 MachOObj->ReadSegment64LoadCommand(LCI, Segment64LC); 246 247 // Store the sections in this segment. 248 for (unsigned SectNum = 0; SectNum != Segment64LC->NumSections; 249 ++SectNum) { 250 InMemoryStruct<macho::Section64> Sect64; 251 MachOObj->ReadSection64(LCI, SectNum, Sect64); 252 Sections.push_back(copySection(Sect64)); 253 254 // Store the symbols in this section. 255 if (SymtabLC) { 256 for (unsigned i = 0; i != (*SymtabLC)->NumSymbolTableEntries; ++i) { 257 InMemoryStruct<macho::Symbol64TableEntry> STE; 258 MachOObj->ReadSymbol64TableEntry((*SymtabLC)->SymbolTableOffset, i, 259 STE); 260 Symbols.push_back(copySymbol(STE)); 261 } 262 } 263 } 264 } else if (LCI.Command.Type == macho::LCT_FunctionStarts) { 265 // We found a function starts segment, parse the addresses for later 266 // consumption. 267 InMemoryStruct<macho::LinkeditDataLoadCommand> LLC; 268 MachOObj->ReadLinkeditDataLoadCommand(LCI, LLC); 269 270 MachOObj->ReadULEB128s(LLC->DataOffset, FoundFns); 271 } 272 } 273} 274 275void llvm::DisassembleInputMachO(StringRef Filename) { 276 OwningPtr<MemoryBuffer> Buff; 277 278 if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) { 279 errs() << "llvm-objdump: " << Filename << ": " << ec.message() << "\n"; 280 return; 281 } 282 283 OwningPtr<MachOObject> MachOObj(MachOObject::LoadFromBuffer(Buff.take())); 284 285 const Target *TheTarget = GetTarget(MachOObj.get()); 286 if (!TheTarget) { 287 // GetTarget prints out stuff. 288 return; 289 } 290 const MCInstrInfo *InstrInfo = TheTarget->createMCInstrInfo(); 291 OwningPtr<MCInstrAnalysis> 292 InstrAnalysis(TheTarget->createMCInstrAnalysis(InstrInfo)); 293 294 // Set up disassembler. 295 OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName)); 296 OwningPtr<const MCSubtargetInfo> 297 STI(TheTarget->createMCSubtargetInfo(TripleName, "", "")); 298 OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI)); 299 int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); 300 OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( 301 AsmPrinterVariant, *AsmInfo, *STI)); 302 303 if (!InstrAnalysis || !AsmInfo || !STI || !DisAsm || !IP) { 304 errs() << "error: couldn't initialize disassmbler for target " 305 << TripleName << '\n'; 306 return; 307 } 308 309 outs() << '\n' << Filename << ":\n\n"; 310 311 const macho::Header &Header = MachOObj->getHeader(); 312 313 const MachOObject::LoadCommandInfo *SymtabLCI = 0; 314 // First, find the symbol table segment. 315 for (unsigned i = 0; i != Header.NumLoadCommands; ++i) { 316 const MachOObject::LoadCommandInfo &LCI = MachOObj->getLoadCommandInfo(i); 317 if (LCI.Command.Type == macho::LCT_Symtab) { 318 SymtabLCI = &LCI; 319 break; 320 } 321 } 322 323 // Read and register the symbol table data. 324 InMemoryStruct<macho::SymtabLoadCommand> SymtabLC; 325 MachOObj->ReadSymtabLoadCommand(*SymtabLCI, SymtabLC); 326 MachOObj->RegisterStringTable(*SymtabLC); 327 328 std::vector<Section> Sections; 329 std::vector<Symbol> Symbols; 330 SmallVector<uint64_t, 8> FoundFns; 331 332 getSectionsAndSymbols(Header, MachOObj.get(), &SymtabLC, Sections, Symbols, 333 FoundFns); 334 335 // Make a copy of the unsorted symbol list. FIXME: duplication 336 std::vector<Symbol> UnsortedSymbols(Symbols); 337 // Sort the symbols by address, just in case they didn't come in that way. 338 array_pod_sort(Symbols.begin(), Symbols.end()); 339 340#ifndef NDEBUG 341 raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); 342#else 343 raw_ostream &DebugOut = nulls(); 344#endif 345 346 StringRef DebugAbbrevSection, DebugInfoSection, DebugArangesSection, 347 DebugLineSection, DebugStrSection; 348 OwningPtr<DIContext> diContext; 349 OwningPtr<MachOObject> DSYMObj; 350 MachOObject *DbgInfoObj = MachOObj.get(); 351 // Try to find debug info and set up the DIContext for it. 352 if (UseDbg) { 353 ArrayRef<Section> DebugSections = Sections; 354 std::vector<Section> DSYMSections; 355 356 // A separate DSym file path was specified, parse it as a macho file, 357 // get the sections and supply it to the section name parsing machinery. 358 if (!DSYMFile.empty()) { 359 OwningPtr<MemoryBuffer> Buf; 360 if (error_code ec = MemoryBuffer::getFileOrSTDIN(DSYMFile.c_str(), Buf)) { 361 errs() << "llvm-objdump: " << Filename << ": " << ec.message() << '\n'; 362 return; 363 } 364 DSYMObj.reset(MachOObject::LoadFromBuffer(Buf.take())); 365 const macho::Header &Header = DSYMObj->getHeader(); 366 367 std::vector<Symbol> Symbols; 368 SmallVector<uint64_t, 8> FoundFns; 369 getSectionsAndSymbols(Header, DSYMObj.get(), 0, DSYMSections, Symbols, 370 FoundFns); 371 DebugSections = DSYMSections; 372 DbgInfoObj = DSYMObj.get(); 373 } 374 375 // Find the named debug info sections. 376 for (unsigned SectIdx = 0; SectIdx != DebugSections.size(); SectIdx++) { 377 if (!strcmp(DebugSections[SectIdx].Name, "__debug_abbrev")) 378 DebugAbbrevSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 379 DebugSections[SectIdx].Size); 380 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_info")) 381 DebugInfoSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 382 DebugSections[SectIdx].Size); 383 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_aranges")) 384 DebugArangesSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 385 DebugSections[SectIdx].Size); 386 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_line")) 387 DebugLineSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 388 DebugSections[SectIdx].Size); 389 else if (!strcmp(DebugSections[SectIdx].Name, "__debug_str")) 390 DebugStrSection = DbgInfoObj->getData(DebugSections[SectIdx].Offset, 391 DebugSections[SectIdx].Size); 392 } 393 394 // Setup the DIContext. 395 diContext.reset(DIContext::getDWARFContext(DbgInfoObj->isLittleEndian(), 396 DebugInfoSection, 397 DebugAbbrevSection, 398 DebugArangesSection, 399 DebugLineSection, 400 DebugStrSection)); 401 } 402 403 FunctionMapTy FunctionMap; 404 FunctionListTy Functions; 405 406 for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { 407 if (strcmp(Sections[SectIdx].Name, "__text")) 408 continue; // Skip non-text sections 409 410 // Insert the functions from the function starts segment into our map. 411 uint64_t VMAddr = Sections[SectIdx].Address - Sections[SectIdx].Offset; 412 for (unsigned i = 0, e = FoundFns.size(); i != e; ++i) 413 FunctionMap.insert(std::make_pair(FoundFns[i]+VMAddr, (MCFunction*)0)); 414 415 StringRef Bytes = MachOObj->getData(Sections[SectIdx].Offset, 416 Sections[SectIdx].Size); 417 StringRefMemoryObject memoryObject(Bytes); 418 bool symbolTableWorked = false; 419 420 // Parse relocations. 421 std::vector<std::pair<uint64_t, uint32_t> > Relocs; 422 for (unsigned j = 0; j != Sections[SectIdx].NumRelocs; ++j) { 423 InMemoryStruct<macho::RelocationEntry> RE; 424 MachOObj->ReadRelocationEntry(Sections[SectIdx].RelocTableOffset, j, RE); 425 Relocs.push_back(std::make_pair(RE->Word0, RE->Word1 & 0xffffff)); 426 } 427 array_pod_sort(Relocs.begin(), Relocs.end()); 428 429 // Disassemble symbol by symbol. 430 for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { 431 // Make sure the symbol is defined in this section. 432 if ((unsigned)Symbols[SymIdx].SectionIndex - 1 != SectIdx) 433 continue; 434 435 // Start at the address of the symbol relative to the section's address. 436 uint64_t Start = Symbols[SymIdx].Value - Sections[SectIdx].Address; 437 // Stop disassembling either at the beginning of the next symbol or at 438 // the end of the section. 439 uint64_t End = (SymIdx+1 == Symbols.size() || 440 Symbols[SymIdx].SectionIndex != Symbols[SymIdx+1].SectionIndex) ? 441 Sections[SectIdx].Size : 442 Symbols[SymIdx+1].Value - Sections[SectIdx].Address; 443 uint64_t Size; 444 445 if (Start >= End) 446 continue; 447 448 symbolTableWorked = true; 449 450 if (!CFG) { 451 // Normal disassembly, print addresses, bytes and mnemonic form. 452 outs() << MachOObj->getStringAtIndex(Symbols[SymIdx].StringIndex) 453 << ":\n"; 454 DILineInfo lastLine; 455 for (uint64_t Index = Start; Index < End; Index += Size) { 456 MCInst Inst; 457 458 if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, 459 DebugOut, nulls())) { 460 outs() << format("%8llx:\t", Sections[SectIdx].Address + Index); 461 DumpBytes(StringRef(Bytes.data() + Index, Size)); 462 IP->printInst(&Inst, outs(), ""); 463 464 // Print debug info. 465 if (diContext) { 466 DILineInfo dli = 467 diContext->getLineInfoForAddress(Sections[SectIdx].Address + 468 Index); 469 // Print valid line info if it changed. 470 if (dli != lastLine && dli.getLine() != 0) 471 outs() << "\t## " << dli.getFileName() << ':' 472 << dli.getLine() << ':' << dli.getColumn(); 473 lastLine = dli; 474 } 475 outs() << "\n"; 476 } else { 477 errs() << "llvm-objdump: warning: invalid instruction encoding\n"; 478 if (Size == 0) 479 Size = 1; // skip illegible bytes 480 } 481 } 482 } else { 483 // Create CFG and use it for disassembly. 484 createMCFunctionAndSaveCalls( 485 MachOObj->getStringAtIndex(Symbols[SymIdx].StringIndex), 486 DisAsm.get(), memoryObject, Start, End, InstrAnalysis.get(), 487 Start, DebugOut, FunctionMap, Functions); 488 } 489 } 490 491 if (CFG) { 492 if (!symbolTableWorked) { 493 // Reading the symbol table didn't work, create a big __TEXT symbol. 494 createMCFunctionAndSaveCalls("__TEXT", DisAsm.get(), memoryObject, 495 0, Sections[SectIdx].Size, 496 InstrAnalysis.get(), 497 Sections[SectIdx].Offset, DebugOut, 498 FunctionMap, Functions); 499 } 500 for (std::map<uint64_t, MCFunction*>::iterator mi = FunctionMap.begin(), 501 me = FunctionMap.end(); mi != me; ++mi) 502 if (mi->second == 0) { 503 // Create functions for the remaining callees we have gathered, 504 // but we didn't find a name for them. 505 SmallVector<uint64_t, 16> Calls; 506 MCFunction f = 507 MCFunction::createFunctionFromMC("unknown", DisAsm.get(), 508 memoryObject, mi->first, 509 Sections[SectIdx].Size, 510 InstrAnalysis.get(), DebugOut, 511 Calls); 512 Functions.push_back(f); 513 mi->second = &Functions.back(); 514 for (unsigned i = 0, e = Calls.size(); i != e; ++i) { 515 std::pair<uint64_t, MCFunction*> p(Calls[i], (MCFunction*)0); 516 if (FunctionMap.insert(p).second) 517 mi = FunctionMap.begin(); 518 } 519 } 520 521 DenseSet<uint64_t> PrintedBlocks; 522 for (unsigned ffi = 0, ffe = Functions.size(); ffi != ffe; ++ffi) { 523 MCFunction &f = Functions[ffi]; 524 for (MCFunction::iterator fi = f.begin(), fe = f.end(); fi != fe; ++fi){ 525 if (!PrintedBlocks.insert(fi->first).second) 526 continue; // We already printed this block. 527 528 // We assume a block has predecessors when it's the first block after 529 // a symbol. 530 bool hasPreds = FunctionMap.find(fi->first) != FunctionMap.end(); 531 532 // See if this block has predecessors. 533 // FIXME: Slow. 534 for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe; 535 ++pi) 536 if (pi->second.contains(fi->first)) { 537 hasPreds = true; 538 break; 539 } 540 541 // No predecessors, this is a data block. Print as .byte directives. 542 if (!hasPreds) { 543 uint64_t End = llvm::next(fi) == fe ? Sections[SectIdx].Size : 544 llvm::next(fi)->first; 545 outs() << "# " << End-fi->first << " bytes of data:\n"; 546 for (unsigned pos = fi->first; pos != End; ++pos) { 547 outs() << format("%8x:\t", Sections[SectIdx].Address + pos); 548 DumpBytes(StringRef(Bytes.data() + pos, 1)); 549 outs() << format("\t.byte 0x%02x\n", (uint8_t)Bytes[pos]); 550 } 551 continue; 552 } 553 554 if (fi->second.contains(fi->first)) // Print a header for simple loops 555 outs() << "# Loop begin:\n"; 556 557 DILineInfo lastLine; 558 // Walk over the instructions and print them. 559 for (unsigned ii = 0, ie = fi->second.getInsts().size(); ii != ie; 560 ++ii) { 561 const MCDecodedInst &Inst = fi->second.getInsts()[ii]; 562 563 // If there's a symbol at this address, print its name. 564 if (FunctionMap.find(Sections[SectIdx].Address + Inst.Address) != 565 FunctionMap.end()) 566 outs() << FunctionMap[Sections[SectIdx].Address + Inst.Address]-> 567 getName() << ":\n"; 568 569 outs() << format("%8llx:\t", Sections[SectIdx].Address + 570 Inst.Address); 571 DumpBytes(StringRef(Bytes.data() + Inst.Address, Inst.Size)); 572 573 if (fi->second.contains(fi->first)) // Indent simple loops. 574 outs() << '\t'; 575 576 IP->printInst(&Inst.Inst, outs(), ""); 577 578 // Look for relocations inside this instructions, if there is one 579 // print its target and additional information if availbable. 580 for (unsigned j = 0; j != Relocs.size(); ++j) 581 if (Relocs[j].first >= Sections[SectIdx].Address + Inst.Address && 582 Relocs[j].first < Sections[SectIdx].Address + Inst.Address + 583 Inst.Size) { 584 outs() << "\t# " 585 << MachOObj->getStringAtIndex( 586 UnsortedSymbols[Relocs[j].second].StringIndex) 587 << ' '; 588 DumpAddress(UnsortedSymbols[Relocs[j].second].Value, Sections, 589 MachOObj.get(), outs()); 590 } 591 592 // If this instructions contains an address, see if we can evaluate 593 // it and print additional information. 594 uint64_t targ = InstrAnalysis->evaluateBranch(Inst.Inst, 595 Inst.Address, 596 Inst.Size); 597 if (targ != -1ULL) 598 DumpAddress(targ, Sections, MachOObj.get(), outs()); 599 600 // Print debug info. 601 if (diContext) { 602 DILineInfo dli = 603 diContext->getLineInfoForAddress(Sections[SectIdx].Address + 604 Inst.Address); 605 // Print valid line info if it changed. 606 if (dli != lastLine && dli.getLine() != 0) 607 outs() << "\t## " << dli.getFileName() << ':' 608 << dli.getLine() << ':' << dli.getColumn(); 609 lastLine = dli; 610 } 611 612 outs() << '\n'; 613 } 614 } 615 616 emitDOTFile((f.getName().str() + ".dot").c_str(), f, IP.get()); 617 } 618 } 619 } 620} 621