1 //===-- llvm-mc.cpp - Machine Code Hacking Driver ---------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This utility is a simple driver that allows command line hacking on machine 10 // code. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "Disassembler.h" 15 #include "llvm/MC/MCAsmBackend.h" 16 #include "llvm/MC/MCAsmInfo.h" 17 #include "llvm/MC/MCCodeEmitter.h" 18 #include "llvm/MC/MCContext.h" 19 #include "llvm/MC/MCInstPrinter.h" 20 #include "llvm/MC/MCInstrInfo.h" 21 #include "llvm/MC/MCObjectFileInfo.h" 22 #include "llvm/MC/MCObjectWriter.h" 23 #include "llvm/MC/MCParser/AsmLexer.h" 24 #include "llvm/MC/MCParser/MCTargetAsmParser.h" 25 #include "llvm/MC/MCRegisterInfo.h" 26 #include "llvm/MC/MCStreamer.h" 27 #include "llvm/MC/MCSubtargetInfo.h" 28 #include "llvm/MC/MCTargetOptionsCommandFlags.h" 29 #include "llvm/MC/TargetRegistry.h" 30 #include "llvm/Support/CommandLine.h" 31 #include "llvm/Support/Compression.h" 32 #include "llvm/Support/FileUtilities.h" 33 #include "llvm/Support/FormattedStream.h" 34 #include "llvm/Support/Host.h" 35 #include "llvm/Support/InitLLVM.h" 36 #include "llvm/Support/MemoryBuffer.h" 37 #include "llvm/Support/SourceMgr.h" 38 #include "llvm/Support/TargetSelect.h" 39 #include "llvm/Support/ToolOutputFile.h" 40 #include "llvm/Support/WithColor.h" 41 42 using namespace llvm; 43 44 static mc::RegisterMCTargetOptionsFlags MOF; 45 46 static cl::OptionCategory MCCategory("MC Options"); 47 48 static cl::opt<std::string> InputFilename(cl::Positional, 49 cl::desc("<input file>"), 50 cl::init("-"), cl::cat(MCCategory)); 51 52 static cl::list<std::string> 53 DisassemblerOptions("M", cl::desc("Disassembler options"), 54 cl::cat(MCCategory)); 55 56 static cl::opt<std::string> OutputFilename("o", cl::desc("Output filename"), 57 cl::value_desc("filename"), 58 cl::init("-"), cl::cat(MCCategory)); 59 60 static cl::opt<std::string> SplitDwarfFile("split-dwarf-file", 61 cl::desc("DWO output filename"), 62 cl::value_desc("filename"), 63 cl::cat(MCCategory)); 64 65 static cl::opt<bool> ShowEncoding("show-encoding", 66 cl::desc("Show instruction encodings"), 67 cl::cat(MCCategory)); 68 69 static cl::opt<bool> RelaxELFRel( 70 "relax-relocations", cl::init(true), 71 cl::desc("Emit R_X86_64_GOTPCRELX instead of R_X86_64_GOTPCREL"), 72 cl::cat(MCCategory)); 73 74 static cl::opt<DebugCompressionType> CompressDebugSections( 75 "compress-debug-sections", cl::ValueOptional, 76 cl::init(DebugCompressionType::None), 77 cl::desc("Choose DWARF debug sections compression:"), 78 cl::values(clEnumValN(DebugCompressionType::None, "none", "No compression"), 79 clEnumValN(DebugCompressionType::Z, "zlib", 80 "Use zlib compression")), 81 cl::cat(MCCategory)); 82 83 static cl::opt<bool> 84 ShowInst("show-inst", cl::desc("Show internal instruction representation"), 85 cl::cat(MCCategory)); 86 87 static cl::opt<bool> 88 ShowInstOperands("show-inst-operands", 89 cl::desc("Show instructions operands as parsed"), 90 cl::cat(MCCategory)); 91 92 static cl::opt<unsigned> 93 OutputAsmVariant("output-asm-variant", 94 cl::desc("Syntax variant to use for output printing"), 95 cl::cat(MCCategory)); 96 97 static cl::opt<bool> 98 PrintImmHex("print-imm-hex", cl::init(false), 99 cl::desc("Prefer hex format for immediate values"), 100 cl::cat(MCCategory)); 101 102 static cl::list<std::string> 103 DefineSymbol("defsym", 104 cl::desc("Defines a symbol to be an integer constant"), 105 cl::cat(MCCategory)); 106 107 static cl::opt<bool> 108 PreserveComments("preserve-comments", 109 cl::desc("Preserve Comments in outputted assembly"), 110 cl::cat(MCCategory)); 111 112 enum OutputFileType { 113 OFT_Null, 114 OFT_AssemblyFile, 115 OFT_ObjectFile 116 }; 117 static cl::opt<OutputFileType> 118 FileType("filetype", cl::init(OFT_AssemblyFile), 119 cl::desc("Choose an output file type:"), 120 cl::values(clEnumValN(OFT_AssemblyFile, "asm", 121 "Emit an assembly ('.s') file"), 122 clEnumValN(OFT_Null, "null", 123 "Don't emit anything (for timing purposes)"), 124 clEnumValN(OFT_ObjectFile, "obj", 125 "Emit a native object ('.o') file")), 126 cl::cat(MCCategory)); 127 128 static cl::list<std::string> IncludeDirs("I", 129 cl::desc("Directory of include files"), 130 cl::value_desc("directory"), 131 cl::Prefix, cl::cat(MCCategory)); 132 133 static cl::opt<std::string> 134 ArchName("arch", 135 cl::desc("Target arch to assemble for, " 136 "see -version for available targets"), 137 cl::cat(MCCategory)); 138 139 static cl::opt<std::string> 140 TripleName("triple", 141 cl::desc("Target triple to assemble for, " 142 "see -version for available targets"), 143 cl::cat(MCCategory)); 144 145 static cl::opt<std::string> 146 MCPU("mcpu", 147 cl::desc("Target a specific cpu type (-mcpu=help for details)"), 148 cl::value_desc("cpu-name"), cl::init(""), cl::cat(MCCategory)); 149 150 static cl::list<std::string> 151 MAttrs("mattr", cl::CommaSeparated, 152 cl::desc("Target specific attributes (-mattr=help for details)"), 153 cl::value_desc("a1,+a2,-a3,..."), cl::cat(MCCategory)); 154 155 static cl::opt<bool> PIC("position-independent", 156 cl::desc("Position independent"), cl::init(false), 157 cl::cat(MCCategory)); 158 159 static cl::opt<bool> 160 LargeCodeModel("large-code-model", 161 cl::desc("Create cfi directives that assume the code might " 162 "be more than 2gb away"), 163 cl::cat(MCCategory)); 164 165 static cl::opt<bool> 166 NoInitialTextSection("n", 167 cl::desc("Don't assume assembly file starts " 168 "in the text section"), 169 cl::cat(MCCategory)); 170 171 static cl::opt<bool> 172 GenDwarfForAssembly("g", 173 cl::desc("Generate dwarf debugging info for assembly " 174 "source files"), 175 cl::cat(MCCategory)); 176 177 static cl::opt<std::string> 178 DebugCompilationDir("fdebug-compilation-dir", 179 cl::desc("Specifies the debug info's compilation dir"), 180 cl::cat(MCCategory)); 181 182 static cl::list<std::string> DebugPrefixMap( 183 "fdebug-prefix-map", cl::desc("Map file source paths in debug info"), 184 cl::value_desc("= separated key-value pairs"), cl::cat(MCCategory)); 185 186 static cl::opt<std::string> MainFileName( 187 "main-file-name", 188 cl::desc("Specifies the name we should consider the input file"), 189 cl::cat(MCCategory)); 190 191 static cl::opt<bool> SaveTempLabels("save-temp-labels", 192 cl::desc("Don't discard temporary labels"), 193 cl::cat(MCCategory)); 194 195 static cl::opt<bool> LexMasmIntegers( 196 "masm-integers", 197 cl::desc("Enable binary and hex masm integers (0b110 and 0ABCh)"), 198 cl::cat(MCCategory)); 199 200 static cl::opt<bool> LexMasmHexFloats( 201 "masm-hexfloats", 202 cl::desc("Enable MASM-style hex float initializers (3F800000r)"), 203 cl::cat(MCCategory)); 204 205 static cl::opt<bool> LexMotorolaIntegers( 206 "motorola-integers", 207 cl::desc("Enable binary and hex Motorola integers (%110 and $ABC)"), 208 cl::cat(MCCategory)); 209 210 static cl::opt<bool> NoExecStack("no-exec-stack", 211 cl::desc("File doesn't need an exec stack"), 212 cl::cat(MCCategory)); 213 214 enum ActionType { 215 AC_AsLex, 216 AC_Assemble, 217 AC_Disassemble, 218 AC_MDisassemble, 219 }; 220 221 static cl::opt<ActionType> Action( 222 cl::desc("Action to perform:"), cl::init(AC_Assemble), 223 cl::values(clEnumValN(AC_AsLex, "as-lex", "Lex tokens from a .s file"), 224 clEnumValN(AC_Assemble, "assemble", 225 "Assemble a .s file (default)"), 226 clEnumValN(AC_Disassemble, "disassemble", 227 "Disassemble strings of hex bytes"), 228 clEnumValN(AC_MDisassemble, "mdis", 229 "Marked up disassembly of strings of hex bytes")), 230 cl::cat(MCCategory)); 231 232 static const Target *GetTarget(const char *ProgName) { 233 // Figure out the target triple. 234 if (TripleName.empty()) 235 TripleName = sys::getDefaultTargetTriple(); 236 Triple TheTriple(Triple::normalize(TripleName)); 237 238 // Get the target specific parser. 239 std::string Error; 240 const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple, 241 Error); 242 if (!TheTarget) { 243 WithColor::error(errs(), ProgName) << Error; 244 return nullptr; 245 } 246 247 // Update the triple name and return the found target. 248 TripleName = TheTriple.getTriple(); 249 return TheTarget; 250 } 251 252 static std::unique_ptr<ToolOutputFile> GetOutputStream(StringRef Path, 253 sys::fs::OpenFlags Flags) { 254 std::error_code EC; 255 auto Out = std::make_unique<ToolOutputFile>(Path, EC, Flags); 256 if (EC) { 257 WithColor::error() << EC.message() << '\n'; 258 return nullptr; 259 } 260 261 return Out; 262 } 263 264 static std::string DwarfDebugFlags; 265 static void setDwarfDebugFlags(int argc, char **argv) { 266 if (!getenv("RC_DEBUG_OPTIONS")) 267 return; 268 for (int i = 0; i < argc; i++) { 269 DwarfDebugFlags += argv[i]; 270 if (i + 1 < argc) 271 DwarfDebugFlags += " "; 272 } 273 } 274 275 static std::string DwarfDebugProducer; 276 static void setDwarfDebugProducer() { 277 if(!getenv("DEBUG_PRODUCER")) 278 return; 279 DwarfDebugProducer += getenv("DEBUG_PRODUCER"); 280 } 281 282 static int AsLexInput(SourceMgr &SrcMgr, MCAsmInfo &MAI, 283 raw_ostream &OS) { 284 285 AsmLexer Lexer(MAI); 286 Lexer.setBuffer(SrcMgr.getMemoryBuffer(SrcMgr.getMainFileID())->getBuffer()); 287 288 bool Error = false; 289 while (Lexer.Lex().isNot(AsmToken::Eof)) { 290 Lexer.getTok().dump(OS); 291 OS << "\n"; 292 if (Lexer.getTok().getKind() == AsmToken::Error) 293 Error = true; 294 } 295 296 return Error; 297 } 298 299 static int fillCommandLineSymbols(MCAsmParser &Parser) { 300 for (auto &I: DefineSymbol) { 301 auto Pair = StringRef(I).split('='); 302 auto Sym = Pair.first; 303 auto Val = Pair.second; 304 305 if (Sym.empty() || Val.empty()) { 306 WithColor::error() << "defsym must be of the form: sym=value: " << I 307 << "\n"; 308 return 1; 309 } 310 int64_t Value; 311 if (Val.getAsInteger(0, Value)) { 312 WithColor::error() << "value is not an integer: " << Val << "\n"; 313 return 1; 314 } 315 Parser.getContext().setSymbolValue(Parser.getStreamer(), Sym, Value); 316 } 317 return 0; 318 } 319 320 static int AssembleInput(const char *ProgName, const Target *TheTarget, 321 SourceMgr &SrcMgr, MCContext &Ctx, MCStreamer &Str, 322 MCAsmInfo &MAI, MCSubtargetInfo &STI, 323 MCInstrInfo &MCII, MCTargetOptions const &MCOptions) { 324 std::unique_ptr<MCAsmParser> Parser( 325 createMCAsmParser(SrcMgr, Ctx, Str, MAI)); 326 std::unique_ptr<MCTargetAsmParser> TAP( 327 TheTarget->createMCAsmParser(STI, *Parser, MCII, MCOptions)); 328 329 if (!TAP) { 330 WithColor::error(errs(), ProgName) 331 << "this target does not support assembly parsing.\n"; 332 return 1; 333 } 334 335 int SymbolResult = fillCommandLineSymbols(*Parser); 336 if(SymbolResult) 337 return SymbolResult; 338 Parser->setShowParsedOperands(ShowInstOperands); 339 Parser->setTargetParser(*TAP); 340 Parser->getLexer().setLexMasmIntegers(LexMasmIntegers); 341 Parser->getLexer().setLexMasmHexFloats(LexMasmHexFloats); 342 Parser->getLexer().setLexMotorolaIntegers(LexMotorolaIntegers); 343 344 int Res = Parser->Run(NoInitialTextSection); 345 346 return Res; 347 } 348 349 int main(int argc, char **argv) { 350 InitLLVM X(argc, argv); 351 352 // Initialize targets and assembly printers/parsers. 353 llvm::InitializeAllTargetInfos(); 354 llvm::InitializeAllTargetMCs(); 355 llvm::InitializeAllAsmParsers(); 356 llvm::InitializeAllDisassemblers(); 357 358 // Register the target printer for --version. 359 cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion); 360 361 cl::HideUnrelatedOptions({&MCCategory, &getColorCategory()}); 362 cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n"); 363 const MCTargetOptions MCOptions = mc::InitMCTargetOptionsFromFlags(); 364 setDwarfDebugFlags(argc, argv); 365 366 setDwarfDebugProducer(); 367 368 const char *ProgName = argv[0]; 369 const Target *TheTarget = GetTarget(ProgName); 370 if (!TheTarget) 371 return 1; 372 // Now that GetTarget() has (potentially) replaced TripleName, it's safe to 373 // construct the Triple object. 374 Triple TheTriple(TripleName); 375 376 ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr = 377 MemoryBuffer::getFileOrSTDIN(InputFilename, /*IsText=*/true); 378 if (std::error_code EC = BufferPtr.getError()) { 379 WithColor::error(errs(), ProgName) 380 << InputFilename << ": " << EC.message() << '\n'; 381 return 1; 382 } 383 MemoryBuffer *Buffer = BufferPtr->get(); 384 385 SourceMgr SrcMgr; 386 387 // Tell SrcMgr about this buffer, which is what the parser will pick up. 388 SrcMgr.AddNewSourceBuffer(std::move(*BufferPtr), SMLoc()); 389 390 // Record the location of the include directories so that the lexer can find 391 // it later. 392 SrcMgr.setIncludeDirs(IncludeDirs); 393 394 std::unique_ptr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName)); 395 assert(MRI && "Unable to create target register info!"); 396 397 std::unique_ptr<MCAsmInfo> MAI( 398 TheTarget->createMCAsmInfo(*MRI, TripleName, MCOptions)); 399 assert(MAI && "Unable to create target asm info!"); 400 401 MAI->setRelaxELFRelocations(RelaxELFRel); 402 403 if (CompressDebugSections != DebugCompressionType::None) { 404 if (!compression::zlib::isAvailable()) { 405 WithColor::error(errs(), ProgName) 406 << "build tools with zlib to enable -compress-debug-sections"; 407 return 1; 408 } 409 MAI->setCompressDebugSections(CompressDebugSections); 410 } 411 MAI->setPreserveAsmComments(PreserveComments); 412 413 // Package up features to be passed to target/subtarget 414 std::string FeaturesStr; 415 if (MAttrs.size()) { 416 SubtargetFeatures Features; 417 for (unsigned i = 0; i != MAttrs.size(); ++i) 418 Features.AddFeature(MAttrs[i]); 419 FeaturesStr = Features.getString(); 420 } 421 422 std::unique_ptr<MCSubtargetInfo> STI( 423 TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr)); 424 assert(STI && "Unable to create subtarget info!"); 425 426 // FIXME: This is not pretty. MCContext has a ptr to MCObjectFileInfo and 427 // MCObjectFileInfo needs a MCContext reference in order to initialize itself. 428 MCContext Ctx(TheTriple, MAI.get(), MRI.get(), STI.get(), &SrcMgr, 429 &MCOptions); 430 std::unique_ptr<MCObjectFileInfo> MOFI( 431 TheTarget->createMCObjectFileInfo(Ctx, PIC, LargeCodeModel)); 432 Ctx.setObjectFileInfo(MOFI.get()); 433 434 if (SaveTempLabels) 435 Ctx.setAllowTemporaryLabels(false); 436 437 Ctx.setGenDwarfForAssembly(GenDwarfForAssembly); 438 // Default to 4 for dwarf version. 439 unsigned DwarfVersion = MCOptions.DwarfVersion ? MCOptions.DwarfVersion : 4; 440 if (DwarfVersion < 2 || DwarfVersion > 5) { 441 errs() << ProgName << ": Dwarf version " << DwarfVersion 442 << " is not supported." << '\n'; 443 return 1; 444 } 445 Ctx.setDwarfVersion(DwarfVersion); 446 if (MCOptions.Dwarf64) { 447 // The 64-bit DWARF format was introduced in DWARFv3. 448 if (DwarfVersion < 3) { 449 errs() << ProgName 450 << ": the 64-bit DWARF format is not supported for DWARF versions " 451 "prior to 3\n"; 452 return 1; 453 } 454 // 32-bit targets don't support DWARF64, which requires 64-bit relocations. 455 if (MAI->getCodePointerSize() < 8) { 456 errs() << ProgName 457 << ": the 64-bit DWARF format is only supported for 64-bit " 458 "targets\n"; 459 return 1; 460 } 461 // If needsDwarfSectionOffsetDirective is true, we would eventually call 462 // MCStreamer::emitSymbolValue() with IsSectionRelative = true, but that 463 // is supported only for 4-byte long references. 464 if (MAI->needsDwarfSectionOffsetDirective()) { 465 errs() << ProgName << ": the 64-bit DWARF format is not supported for " 466 << TheTriple.normalize() << "\n"; 467 return 1; 468 } 469 Ctx.setDwarfFormat(dwarf::DWARF64); 470 } 471 if (!DwarfDebugFlags.empty()) 472 Ctx.setDwarfDebugFlags(StringRef(DwarfDebugFlags)); 473 if (!DwarfDebugProducer.empty()) 474 Ctx.setDwarfDebugProducer(StringRef(DwarfDebugProducer)); 475 if (!DebugCompilationDir.empty()) 476 Ctx.setCompilationDir(DebugCompilationDir); 477 else { 478 // If no compilation dir is set, try to use the current directory. 479 SmallString<128> CWD; 480 if (!sys::fs::current_path(CWD)) 481 Ctx.setCompilationDir(CWD); 482 } 483 for (const auto &Arg : DebugPrefixMap) { 484 const auto &KV = StringRef(Arg).split('='); 485 Ctx.addDebugPrefixMapEntry(std::string(KV.first), std::string(KV.second)); 486 } 487 if (!MainFileName.empty()) 488 Ctx.setMainFileName(MainFileName); 489 if (GenDwarfForAssembly) 490 Ctx.setGenDwarfRootFile(InputFilename, Buffer->getBuffer()); 491 492 sys::fs::OpenFlags Flags = (FileType == OFT_AssemblyFile) 493 ? sys::fs::OF_TextWithCRLF 494 : sys::fs::OF_None; 495 std::unique_ptr<ToolOutputFile> Out = GetOutputStream(OutputFilename, Flags); 496 if (!Out) 497 return 1; 498 499 std::unique_ptr<ToolOutputFile> DwoOut; 500 if (!SplitDwarfFile.empty()) { 501 if (FileType != OFT_ObjectFile) { 502 WithColor::error() << "dwo output only supported with object files\n"; 503 return 1; 504 } 505 DwoOut = GetOutputStream(SplitDwarfFile, sys::fs::OF_None); 506 if (!DwoOut) 507 return 1; 508 } 509 510 std::unique_ptr<buffer_ostream> BOS; 511 raw_pwrite_stream *OS = &Out->os(); 512 std::unique_ptr<MCStreamer> Str; 513 514 std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo()); 515 assert(MCII && "Unable to create instruction info!"); 516 517 MCInstPrinter *IP = nullptr; 518 if (FileType == OFT_AssemblyFile) { 519 IP = TheTarget->createMCInstPrinter(Triple(TripleName), OutputAsmVariant, 520 *MAI, *MCII, *MRI); 521 522 if (!IP) { 523 WithColor::error() 524 << "unable to create instruction printer for target triple '" 525 << TheTriple.normalize() << "' with assembly variant " 526 << OutputAsmVariant << ".\n"; 527 return 1; 528 } 529 530 for (StringRef Opt : DisassemblerOptions) 531 if (!IP->applyTargetSpecificCLOption(Opt)) { 532 WithColor::error() << "invalid disassembler option '" << Opt << "'\n"; 533 return 1; 534 } 535 536 // Set the display preference for hex vs. decimal immediates. 537 IP->setPrintImmHex(PrintImmHex); 538 539 // Set up the AsmStreamer. 540 std::unique_ptr<MCCodeEmitter> CE; 541 if (ShowEncoding) 542 CE.reset(TheTarget->createMCCodeEmitter(*MCII, Ctx)); 543 544 std::unique_ptr<MCAsmBackend> MAB( 545 TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions)); 546 auto FOut = std::make_unique<formatted_raw_ostream>(*OS); 547 Str.reset( 548 TheTarget->createAsmStreamer(Ctx, std::move(FOut), /*asmverbose*/ true, 549 /*useDwarfDirectory*/ true, IP, 550 std::move(CE), std::move(MAB), ShowInst)); 551 552 } else if (FileType == OFT_Null) { 553 Str.reset(TheTarget->createNullStreamer(Ctx)); 554 } else { 555 assert(FileType == OFT_ObjectFile && "Invalid file type!"); 556 557 if (!Out->os().supportsSeeking()) { 558 BOS = std::make_unique<buffer_ostream>(Out->os()); 559 OS = BOS.get(); 560 } 561 562 MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, Ctx); 563 MCAsmBackend *MAB = TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions); 564 Str.reset(TheTarget->createMCObjectStreamer( 565 TheTriple, Ctx, std::unique_ptr<MCAsmBackend>(MAB), 566 DwoOut ? MAB->createDwoObjectWriter(*OS, DwoOut->os()) 567 : MAB->createObjectWriter(*OS), 568 std::unique_ptr<MCCodeEmitter>(CE), *STI, MCOptions.MCRelaxAll, 569 MCOptions.MCIncrementalLinkerCompatible, 570 /*DWARFMustBeAtTheEnd*/ false)); 571 if (NoExecStack) 572 Str->initSections(true, *STI); 573 } 574 575 // Use Assembler information for parsing. 576 Str->setUseAssemblerInfoForParsing(true); 577 578 int Res = 1; 579 bool disassemble = false; 580 switch (Action) { 581 case AC_AsLex: 582 Res = AsLexInput(SrcMgr, *MAI, Out->os()); 583 break; 584 case AC_Assemble: 585 Res = AssembleInput(ProgName, TheTarget, SrcMgr, Ctx, *Str, *MAI, *STI, 586 *MCII, MCOptions); 587 break; 588 case AC_MDisassemble: 589 assert(IP && "Expected assembly output"); 590 IP->setUseMarkup(true); 591 disassemble = true; 592 break; 593 case AC_Disassemble: 594 disassemble = true; 595 break; 596 } 597 if (disassemble) 598 Res = Disassembler::disassemble(*TheTarget, TripleName, *STI, *Str, *Buffer, 599 SrcMgr, Ctx, Out->os(), MCOptions); 600 601 // Keep output if no errors. 602 if (Res == 0) { 603 Out->keep(); 604 if (DwoOut) 605 DwoOut->keep(); 606 } 607 return Res; 608 } 609