MachODump.cpp revision 956ca7265c697107708468b7e1b2fd21f4185bae
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/ADT/OwningPtr.h" 17#include "llvm/ADT/STLExtras.h" 18#include "llvm/ADT/Triple.h" 19#include "llvm/DebugInfo/DIContext.h" 20#include "llvm/MC/MCAsmInfo.h" 21#include "llvm/MC/MCDisassembler.h" 22#include "llvm/MC/MCInst.h" 23#include "llvm/MC/MCInstPrinter.h" 24#include "llvm/MC/MCInstrAnalysis.h" 25#include "llvm/MC/MCInstrDesc.h" 26#include "llvm/MC/MCInstrInfo.h" 27#include "llvm/MC/MCRegisterInfo.h" 28#include "llvm/MC/MCSubtargetInfo.h" 29#include "llvm/Object/MachO.h" 30#include "llvm/Support/Casting.h" 31#include "llvm/Support/CommandLine.h" 32#include "llvm/Support/Debug.h" 33#include "llvm/Support/Format.h" 34#include "llvm/Support/GraphWriter.h" 35#include "llvm/Support/MachO.h" 36#include "llvm/Support/MemoryBuffer.h" 37#include "llvm/Support/TargetRegistry.h" 38#include "llvm/Support/TargetSelect.h" 39#include "llvm/Support/raw_ostream.h" 40#include "llvm/Support/system_error.h" 41#include <algorithm> 42#include <cstring> 43using namespace llvm; 44using namespace object; 45 46static cl::opt<bool> 47 CFG("cfg", cl::desc("Create a CFG for every symbol in the object file and" 48 " write it to a graphviz file (MachO-only)")); 49 50static cl::opt<bool> 51 UseDbg("g", cl::desc("Print line information from debug info if available")); 52 53static cl::opt<std::string> 54 DSYMFile("dsym", cl::desc("Use .dSYM file for debug info")); 55 56static const Target *GetTarget(const MachOObjectFile *MachOObj) { 57 // Figure out the target triple. 58 if (TripleName.empty()) { 59 llvm::Triple TT("unknown-unknown-unknown"); 60 TT.setArch(Triple::ArchType(MachOObj->getArch())); 61 TripleName = TT.str(); 62 } 63 64 // Get the target specific parser. 65 std::string Error; 66 const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); 67 if (TheTarget) 68 return TheTarget; 69 70 errs() << "llvm-objdump: error: unable to get target for '" << TripleName 71 << "', see --version and --triple.\n"; 72 return 0; 73} 74 75struct SymbolSorter { 76 bool operator()(const SymbolRef &A, const SymbolRef &B) { 77 SymbolRef::Type AType, BType; 78 A.getType(AType); 79 B.getType(BType); 80 81 uint64_t AAddr, BAddr; 82 if (AType != SymbolRef::ST_Function) 83 AAddr = 0; 84 else 85 A.getAddress(AAddr); 86 if (BType != SymbolRef::ST_Function) 87 BAddr = 0; 88 else 89 B.getAddress(BAddr); 90 return AAddr < BAddr; 91 } 92}; 93 94// Print additional information about an address, if available. 95static void DumpAddress(uint64_t Address, ArrayRef<SectionRef> Sections, 96 const MachOObjectFile *MachOObj, raw_ostream &OS) { 97 for (unsigned i = 0; i != Sections.size(); ++i) { 98 uint64_t SectAddr = 0, SectSize = 0; 99 Sections[i].getAddress(SectAddr); 100 Sections[i].getSize(SectSize); 101 uint64_t addr = SectAddr; 102 if (SectAddr <= Address && 103 SectAddr + SectSize > Address) { 104 StringRef bytes, name; 105 Sections[i].getContents(bytes); 106 Sections[i].getName(name); 107 // Print constant strings. 108 if (!name.compare("__cstring")) 109 OS << '"' << bytes.substr(addr, bytes.find('\0', addr)) << '"'; 110 // Print constant CFStrings. 111 if (!name.compare("__cfstring")) 112 OS << "@\"" << bytes.substr(addr, bytes.find('\0', addr)) << '"'; 113 } 114 } 115} 116 117typedef std::map<uint64_t, MCFunction*> FunctionMapTy; 118typedef SmallVector<MCFunction, 16> FunctionListTy; 119static void createMCFunctionAndSaveCalls(StringRef Name, 120 const MCDisassembler *DisAsm, 121 MemoryObject &Object, uint64_t Start, 122 uint64_t End, 123 MCInstrAnalysis *InstrAnalysis, 124 uint64_t Address, 125 raw_ostream &DebugOut, 126 FunctionMapTy &FunctionMap, 127 FunctionListTy &Functions) { 128 SmallVector<uint64_t, 16> Calls; 129 MCFunction f = 130 MCFunction::createFunctionFromMC(Name, DisAsm, Object, Start, End, 131 InstrAnalysis, DebugOut, Calls); 132 Functions.push_back(f); 133 FunctionMap[Address] = &Functions.back(); 134 135 // Add the gathered callees to the map. 136 for (unsigned i = 0, e = Calls.size(); i != e; ++i) 137 FunctionMap.insert(std::make_pair(Calls[i], (MCFunction*)0)); 138} 139 140// Write a graphviz file for the CFG inside an MCFunction. 141static void emitDOTFile(const char *FileName, const MCFunction &f, 142 MCInstPrinter *IP) { 143 // Start a new dot file. 144 std::string Error; 145 raw_fd_ostream Out(FileName, Error); 146 if (!Error.empty()) { 147 errs() << "llvm-objdump: warning: " << Error << '\n'; 148 return; 149 } 150 151 Out << "digraph " << f.getName() << " {\n"; 152 Out << "graph [ rankdir = \"LR\" ];\n"; 153 for (MCFunction::iterator i = f.begin(), e = f.end(); i != e; ++i) { 154 bool hasPreds = false; 155 // Only print blocks that have predecessors. 156 // FIXME: Slow. 157 for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe; 158 ++pi) 159 if (pi->second.contains(i->first)) { 160 hasPreds = true; 161 break; 162 } 163 164 if (!hasPreds && i != f.begin()) 165 continue; 166 167 Out << '"' << i->first << "\" [ label=\"<a>"; 168 // Print instructions. 169 for (unsigned ii = 0, ie = i->second.getInsts().size(); ii != ie; 170 ++ii) { 171 // Escape special chars and print the instruction in mnemonic form. 172 std::string Str; 173 raw_string_ostream OS(Str); 174 IP->printInst(&i->second.getInsts()[ii].Inst, OS, ""); 175 Out << DOT::EscapeString(OS.str()) << '|'; 176 } 177 Out << "<o>\" shape=\"record\" ];\n"; 178 179 // Add edges. 180 for (MCBasicBlock::succ_iterator si = i->second.succ_begin(), 181 se = i->second.succ_end(); si != se; ++si) 182 Out << i->first << ":o -> " << *si <<":a\n"; 183 } 184 Out << "}\n"; 185} 186 187static void 188getSectionsAndSymbols(const macho::Header Header, 189 MachOObjectFile *MachOObj, 190 std::vector<SectionRef> &Sections, 191 std::vector<SymbolRef> &Symbols, 192 SmallVectorImpl<uint64_t> &FoundFns) { 193 error_code ec; 194 for (symbol_iterator SI = MachOObj->begin_symbols(), 195 SE = MachOObj->end_symbols(); SI != SE; SI.increment(ec)) 196 Symbols.push_back(*SI); 197 198 for (section_iterator SI = MachOObj->begin_sections(), 199 SE = MachOObj->end_sections(); SI != SE; SI.increment(ec)) { 200 SectionRef SR = *SI; 201 StringRef SectName; 202 SR.getName(SectName); 203 Sections.push_back(*SI); 204 } 205 206 MachOObjectFile::LoadCommandInfo Command = 207 MachOObj->getFirstLoadCommandInfo(); 208 for (unsigned i = 0; ; ++i) { 209 if (Command.C.Type == macho::LCT_FunctionStarts) { 210 // We found a function starts segment, parse the addresses for later 211 // consumption. 212 macho::LinkeditDataLoadCommand LLC = 213 MachOObj->getLinkeditDataLoadCommand(Command); 214 215 MachOObj->ReadULEB128s(LLC.DataOffset, FoundFns); 216 } 217 218 if (i == Header.NumLoadCommands - 1) 219 break; 220 else 221 Command = MachOObj->getNextLoadCommandInfo(Command); 222 } 223} 224 225static void DisassembleInputMachO2(StringRef Filename, 226 MachOObjectFile *MachOOF); 227 228void llvm::DisassembleInputMachO(StringRef Filename) { 229 OwningPtr<MemoryBuffer> Buff; 230 231 if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) { 232 errs() << "llvm-objdump: " << Filename << ": " << ec.message() << "\n"; 233 return; 234 } 235 236 OwningPtr<MachOObjectFile> MachOOF(static_cast<MachOObjectFile*>( 237 ObjectFile::createMachOObjectFile(Buff.take()))); 238 239 DisassembleInputMachO2(Filename, MachOOF.get()); 240} 241 242static void DisassembleInputMachO2(StringRef Filename, 243 MachOObjectFile *MachOOF) { 244 const Target *TheTarget = GetTarget(MachOOF); 245 if (!TheTarget) { 246 // GetTarget prints out stuff. 247 return; 248 } 249 OwningPtr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo()); 250 OwningPtr<MCInstrAnalysis> 251 InstrAnalysis(TheTarget->createMCInstrAnalysis(InstrInfo.get())); 252 253 // Set up disassembler. 254 OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName)); 255 OwningPtr<const MCSubtargetInfo> 256 STI(TheTarget->createMCSubtargetInfo(TripleName, "", "")); 257 OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI)); 258 OwningPtr<const MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName)); 259 int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); 260 OwningPtr<MCInstPrinter> 261 IP(TheTarget->createMCInstPrinter(AsmPrinterVariant, *AsmInfo, *InstrInfo, 262 *MRI, *STI)); 263 264 if (!InstrAnalysis || !AsmInfo || !STI || !DisAsm || !IP) { 265 errs() << "error: couldn't initialize disassembler for target " 266 << TripleName << '\n'; 267 return; 268 } 269 270 outs() << '\n' << Filename << ":\n\n"; 271 272 macho::Header Header = MachOOF->getHeader(); 273 274 std::vector<SectionRef> Sections; 275 std::vector<SymbolRef> Symbols; 276 SmallVector<uint64_t, 8> FoundFns; 277 278 getSectionsAndSymbols(Header, MachOOF, Sections, Symbols, FoundFns); 279 280 // Make a copy of the unsorted symbol list. FIXME: duplication 281 std::vector<SymbolRef> UnsortedSymbols(Symbols); 282 // Sort the symbols by address, just in case they didn't come in that way. 283 std::sort(Symbols.begin(), Symbols.end(), SymbolSorter()); 284 285#ifndef NDEBUG 286 raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); 287#else 288 raw_ostream &DebugOut = nulls(); 289#endif 290 291 OwningPtr<DIContext> diContext; 292 ObjectFile *DbgObj = MachOOF; 293 // Try to find debug info and set up the DIContext for it. 294 if (UseDbg) { 295 // A separate DSym file path was specified, parse it as a macho file, 296 // get the sections and supply it to the section name parsing machinery. 297 if (!DSYMFile.empty()) { 298 OwningPtr<MemoryBuffer> Buf; 299 if (error_code ec = MemoryBuffer::getFileOrSTDIN(DSYMFile.c_str(), Buf)) { 300 errs() << "llvm-objdump: " << Filename << ": " << ec.message() << '\n'; 301 return; 302 } 303 DbgObj = ObjectFile::createMachOObjectFile(Buf.take()); 304 } 305 306 // Setup the DIContext 307 diContext.reset(DIContext::getDWARFContext(DbgObj)); 308 } 309 310 FunctionMapTy FunctionMap; 311 FunctionListTy Functions; 312 313 for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { 314 StringRef SectName; 315 if (Sections[SectIdx].getName(SectName) || 316 SectName != "__text") 317 continue; // Skip non-text sections 318 319 DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl(); 320 StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR); 321 if (SegmentName != "__TEXT") 322 continue; 323 324 // Insert the functions from the function starts segment into our map. 325 uint64_t VMAddr; 326 Sections[SectIdx].getAddress(VMAddr); 327 for (unsigned i = 0, e = FoundFns.size(); i != e; ++i) { 328 StringRef SectBegin; 329 Sections[SectIdx].getContents(SectBegin); 330 uint64_t Offset = (uint64_t)SectBegin.data(); 331 FunctionMap.insert(std::make_pair(VMAddr + FoundFns[i]-Offset, 332 (MCFunction*)0)); 333 } 334 335 StringRef Bytes; 336 Sections[SectIdx].getContents(Bytes); 337 StringRefMemoryObject memoryObject(Bytes); 338 bool symbolTableWorked = false; 339 340 // Parse relocations. 341 std::vector<std::pair<uint64_t, SymbolRef> > Relocs; 342 error_code ec; 343 for (relocation_iterator RI = Sections[SectIdx].begin_relocations(), 344 RE = Sections[SectIdx].end_relocations(); RI != RE; RI.increment(ec)) { 345 uint64_t RelocOffset, SectionAddress; 346 RI->getOffset(RelocOffset); 347 Sections[SectIdx].getAddress(SectionAddress); 348 RelocOffset -= SectionAddress; 349 350 SymbolRef RelocSym; 351 RI->getSymbol(RelocSym); 352 353 Relocs.push_back(std::make_pair(RelocOffset, RelocSym)); 354 } 355 array_pod_sort(Relocs.begin(), Relocs.end()); 356 357 // Disassemble symbol by symbol. 358 for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { 359 StringRef SymName; 360 Symbols[SymIdx].getName(SymName); 361 362 SymbolRef::Type ST; 363 Symbols[SymIdx].getType(ST); 364 if (ST != SymbolRef::ST_Function) 365 continue; 366 367 // Make sure the symbol is defined in this section. 368 bool containsSym = false; 369 Sections[SectIdx].containsSymbol(Symbols[SymIdx], containsSym); 370 if (!containsSym) 371 continue; 372 373 // Start at the address of the symbol relative to the section's address. 374 uint64_t SectionAddress = 0; 375 uint64_t Start = 0; 376 Sections[SectIdx].getAddress(SectionAddress); 377 Symbols[SymIdx].getAddress(Start); 378 Start -= SectionAddress; 379 380 // Stop disassembling either at the beginning of the next symbol or at 381 // the end of the section. 382 bool containsNextSym = false; 383 uint64_t NextSym = 0; 384 uint64_t NextSymIdx = SymIdx+1; 385 while (Symbols.size() > NextSymIdx) { 386 SymbolRef::Type NextSymType; 387 Symbols[NextSymIdx].getType(NextSymType); 388 if (NextSymType == SymbolRef::ST_Function) { 389 Sections[SectIdx].containsSymbol(Symbols[NextSymIdx], 390 containsNextSym); 391 Symbols[NextSymIdx].getAddress(NextSym); 392 NextSym -= SectionAddress; 393 break; 394 } 395 ++NextSymIdx; 396 } 397 398 uint64_t SectSize; 399 Sections[SectIdx].getSize(SectSize); 400 uint64_t End = containsNextSym ? NextSym : SectSize; 401 uint64_t Size; 402 403 symbolTableWorked = true; 404 405 if (!CFG) { 406 // Normal disassembly, print addresses, bytes and mnemonic form. 407 StringRef SymName; 408 Symbols[SymIdx].getName(SymName); 409 410 outs() << SymName << ":\n"; 411 DILineInfo lastLine; 412 for (uint64_t Index = Start; Index < End; Index += Size) { 413 MCInst Inst; 414 415 if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, 416 DebugOut, nulls())) { 417 uint64_t SectAddress = 0; 418 Sections[SectIdx].getAddress(SectAddress); 419 outs() << format("%8" PRIx64 ":\t", SectAddress + Index); 420 421 DumpBytes(StringRef(Bytes.data() + Index, Size)); 422 IP->printInst(&Inst, outs(), ""); 423 424 // Print debug info. 425 if (diContext) { 426 DILineInfo dli = 427 diContext->getLineInfoForAddress(SectAddress + Index); 428 // Print valid line info if it changed. 429 if (dli != lastLine && dli.getLine() != 0) 430 outs() << "\t## " << dli.getFileName() << ':' 431 << dli.getLine() << ':' << dli.getColumn(); 432 lastLine = dli; 433 } 434 outs() << "\n"; 435 } else { 436 errs() << "llvm-objdump: warning: invalid instruction encoding\n"; 437 if (Size == 0) 438 Size = 1; // skip illegible bytes 439 } 440 } 441 } else { 442 // Create CFG and use it for disassembly. 443 StringRef SymName; 444 Symbols[SymIdx].getName(SymName); 445 createMCFunctionAndSaveCalls( 446 SymName, DisAsm.get(), memoryObject, Start, End, 447 InstrAnalysis.get(), Start, DebugOut, FunctionMap, Functions); 448 } 449 } 450 if (!CFG && !symbolTableWorked) { 451 // Reading the symbol table didn't work, disassemble the whole section. 452 uint64_t SectAddress; 453 Sections[SectIdx].getAddress(SectAddress); 454 uint64_t SectSize; 455 Sections[SectIdx].getSize(SectSize); 456 uint64_t InstSize; 457 for (uint64_t Index = 0; Index < SectSize; Index += InstSize) { 458 MCInst Inst; 459 460 if (DisAsm->getInstruction(Inst, InstSize, memoryObject, Index, 461 DebugOut, nulls())) { 462 outs() << format("%8" PRIx64 ":\t", SectAddress + Index); 463 DumpBytes(StringRef(Bytes.data() + Index, InstSize)); 464 IP->printInst(&Inst, outs(), ""); 465 outs() << "\n"; 466 } else { 467 errs() << "llvm-objdump: warning: invalid instruction encoding\n"; 468 if (InstSize == 0) 469 InstSize = 1; // skip illegible bytes 470 } 471 } 472 } 473 474 if (CFG) { 475 if (!symbolTableWorked) { 476 // Reading the symbol table didn't work, create a big __TEXT symbol. 477 uint64_t SectSize = 0, SectAddress = 0; 478 Sections[SectIdx].getSize(SectSize); 479 Sections[SectIdx].getAddress(SectAddress); 480 createMCFunctionAndSaveCalls("__TEXT", DisAsm.get(), memoryObject, 481 0, SectSize, 482 InstrAnalysis.get(), 483 SectAddress, DebugOut, 484 FunctionMap, Functions); 485 } 486 for (std::map<uint64_t, MCFunction*>::iterator mi = FunctionMap.begin(), 487 me = FunctionMap.end(); mi != me; ++mi) 488 if (mi->second == 0) { 489 // Create functions for the remaining callees we have gathered, 490 // but we didn't find a name for them. 491 uint64_t SectSize = 0; 492 Sections[SectIdx].getSize(SectSize); 493 494 SmallVector<uint64_t, 16> Calls; 495 MCFunction f = 496 MCFunction::createFunctionFromMC("unknown", DisAsm.get(), 497 memoryObject, mi->first, 498 SectSize, 499 InstrAnalysis.get(), DebugOut, 500 Calls); 501 Functions.push_back(f); 502 mi->second = &Functions.back(); 503 for (unsigned i = 0, e = Calls.size(); i != e; ++i) { 504 std::pair<uint64_t, MCFunction*> p(Calls[i], (MCFunction*)0); 505 if (FunctionMap.insert(p).second) 506 mi = FunctionMap.begin(); 507 } 508 } 509 510 DenseSet<uint64_t> PrintedBlocks; 511 for (unsigned ffi = 0, ffe = Functions.size(); ffi != ffe; ++ffi) { 512 MCFunction &f = Functions[ffi]; 513 for (MCFunction::iterator fi = f.begin(), fe = f.end(); fi != fe; ++fi){ 514 if (!PrintedBlocks.insert(fi->first).second) 515 continue; // We already printed this block. 516 517 // We assume a block has predecessors when it's the first block after 518 // a symbol. 519 bool hasPreds = FunctionMap.find(fi->first) != FunctionMap.end(); 520 521 // See if this block has predecessors. 522 // FIXME: Slow. 523 for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe; 524 ++pi) 525 if (pi->second.contains(fi->first)) { 526 hasPreds = true; 527 break; 528 } 529 530 uint64_t SectSize = 0, SectAddress; 531 Sections[SectIdx].getSize(SectSize); 532 Sections[SectIdx].getAddress(SectAddress); 533 534 // No predecessors, this is a data block. Print as .byte directives. 535 if (!hasPreds) { 536 uint64_t End = llvm::next(fi) == fe ? SectSize : 537 llvm::next(fi)->first; 538 outs() << "# " << End-fi->first << " bytes of data:\n"; 539 for (unsigned pos = fi->first; pos != End; ++pos) { 540 outs() << format("%8x:\t", SectAddress + pos); 541 DumpBytes(StringRef(Bytes.data() + pos, 1)); 542 outs() << format("\t.byte 0x%02x\n", (uint8_t)Bytes[pos]); 543 } 544 continue; 545 } 546 547 if (fi->second.contains(fi->first)) // Print a header for simple loops 548 outs() << "# Loop begin:\n"; 549 550 DILineInfo lastLine; 551 // Walk over the instructions and print them. 552 for (unsigned ii = 0, ie = fi->second.getInsts().size(); ii != ie; 553 ++ii) { 554 const MCDecodedInst &Inst = fi->second.getInsts()[ii]; 555 556 // If there's a symbol at this address, print its name. 557 if (FunctionMap.find(SectAddress + Inst.Address) != 558 FunctionMap.end()) 559 outs() << FunctionMap[SectAddress + Inst.Address]-> getName() 560 << ":\n"; 561 562 outs() << format("%8" PRIx64 ":\t", SectAddress + Inst.Address); 563 DumpBytes(StringRef(Bytes.data() + Inst.Address, Inst.Size)); 564 565 if (fi->second.contains(fi->first)) // Indent simple loops. 566 outs() << '\t'; 567 568 IP->printInst(&Inst.Inst, outs(), ""); 569 570 // Look for relocations inside this instructions, if there is one 571 // print its target and additional information if available. 572 for (unsigned j = 0; j != Relocs.size(); ++j) 573 if (Relocs[j].first >= SectAddress + Inst.Address && 574 Relocs[j].first < SectAddress + Inst.Address + Inst.Size) { 575 StringRef SymName; 576 uint64_t Addr; 577 Relocs[j].second.getAddress(Addr); 578 Relocs[j].second.getName(SymName); 579 580 outs() << "\t# " << SymName << ' '; 581 DumpAddress(Addr, Sections, MachOOF, outs()); 582 } 583 584 // If this instructions contains an address, see if we can evaluate 585 // it and print additional information. 586 uint64_t targ = InstrAnalysis->evaluateBranch(Inst.Inst, 587 Inst.Address, 588 Inst.Size); 589 if (targ != -1ULL) 590 DumpAddress(targ, Sections, MachOOF, outs()); 591 592 // Print debug info. 593 if (diContext) { 594 DILineInfo dli = 595 diContext->getLineInfoForAddress(SectAddress + Inst.Address); 596 // Print valid line info if it changed. 597 if (dli != lastLine && dli.getLine() != 0) 598 outs() << "\t## " << dli.getFileName() << ':' 599 << dli.getLine() << ':' << dli.getColumn(); 600 lastLine = dli; 601 } 602 603 outs() << '\n'; 604 } 605 } 606 607 emitDOTFile((f.getName().str() + ".dot").c_str(), f, IP.get()); 608 } 609 } 610 } 611} 612