1 //===-- llvm-mc.cpp - Machine Code Hacking Driver ---------------*- C++ -*-===//
8 //===----------------------------------------------------------------------===//
13 //===----------------------------------------------------------------------===//
45 static cl::opt<std::string>
46 InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
48 static cl::opt<std::string>
52 static cl::opt<bool>
53 ShowEncoding("show-encoding", cl::desc("Show instruction encodings"));
55 static cl::opt<bool> RelaxELFRel(
56     "relax-relocations", cl::init(true),
59 static cl::opt<DebugCompressionType>
60 CompressDebugSections("compress-debug-sections", cl::ValueOptional,
68     clEnumValN(DebugCompressionType::DCT_ZlibGnu, "zlib-gnu",
69       "Use zlib-gnu compression (depricated)"),
72 static cl::opt<bool>
73 ShowInst("show-inst", cl::desc("Show internal instruction representation"));
75 static cl::opt<bool>
76 ShowInstOperands("show-inst-operands",
79 static cl::opt<unsigned>
80 OutputAsmVariant("output-asm-variant",
83 static cl::opt<bool>
84 PrintImmHex("print-imm-hex", cl::init(false),
90 static cl::opt<bool>
91     PreserveComments("preserve-comments",
99 static cl::opt<OutputFileType>
115 static cl::opt<std::string>
117                           "see -version for available targets"));
119 static cl::opt<std::string>
121                               "see -version for available targets"));
123 static cl::opt<std::string>
125      cl::desc("Target a specific cpu type (-mcpu=help for details)"),
126      cl::value_desc("cpu-name"),
132   cl::desc("Target specific attributes (-mattr=help for details)"),
133   cl::value_desc("a1,+a2,-a3,..."));
135 static cl::opt<bool> PIC("position-independent",
138 static cl::opt<llvm::CodeModel::Model>
139 CMModel("code-model",
154 static cl::opt<bool>
158 static cl::opt<bool>
162 static cl::opt<std::string>
163 DebugCompilationDir("fdebug-compilation-dir",
166 static cl::opt<std::string>
167 MainFileName("main-file-name",
170 static cl::opt<bool> SaveTempLabels("save-temp-labels",
173 static cl::opt<bool> NoExecStack("no-exec-stack",
183 static cl::opt<ActionType>
186        cl::values(clEnumValN(AC_AsLex, "as-lex",
197   // Figure out the target triple.  in GetTarget()
218     OutputFilename = "-";  in GetOutputStream()
221   auto Out = llvm::make_unique<tool_output_file>(OutputFilename, EC,  in GetOutputStream()  local
228   return Out;  in GetOutputStream()
253   Lexer.setBuffer(SrcMgr.getMemoryBuffer(SrcMgr.getMainFileID())->getBuffer());  in AsLexInput()
355       TheTarget->createMCAsmParser(STI, *Parser, MCII, MCOptions));  in AssembleInput()
366   Parser->setShowParsedOperands(ShowInstOperands);  in AssembleInput()
367   Parser->setTargetParser(*TAP);  in AssembleInput()
369   int Res = Parser->Run(NoInitialTextSection);  in AssembleInput()
375   // Print a stack trace if we signal out.  in main()
386   // Register the target printer for --version.  in main()
410   MemoryBuffer *Buffer = BufferPtr->get();  in main()
421   std::unique_ptr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName));  in main()
424   std::unique_ptr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(*MRI, TripleName));  in main()
427   MAI->setRelaxELFRelocations(RelaxELFRel);  in main()
432              << ": build tools with zlib to enable -compress-debug-sections";  in main()
435     MAI->setCompressDebugSections(CompressDebugSections);  in main()
437   MAI->setPreserveAsmComments(PreserveComments);  in main()
481   std::unique_ptr<tool_output_file> Out = GetOutputStream();  in main()  local
482   if (!Out)  in main()
486   raw_pwrite_stream *OS = &Out->os();  in main()
489   std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());  in main()
491       TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));  in main()
495     IP = TheTarget->createMCInstPrinter(Triple(TripleName), OutputAsmVariant,  in main()
499     IP->setPrintImmHex(PrintImmHex);  in main()
505       CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx);  in main()
506       MAB = TheTarget->createMCAsmBackend(*MRI, TripleName, MCPU);  in main()
509     Str.reset(TheTarget->createAsmStreamer(  in main()
514     Str.reset(TheTarget->createNullStreamer(Ctx));  in main()
521     if (!Out->os().supportsSeeking()) {  in main()
522       BOS = make_unique<buffer_ostream>(Out->os());  in main()
526     MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, *MRI, Ctx);  in main()
527     MCAsmBackend *MAB = TheTarget->createMCAsmBackend(*MRI, TripleName, MCPU);  in main()
528     Str.reset(TheTarget->createMCObjectStreamer(  in main()
533       Str->InitSections(true);  in main()
540     Res = AsLexInput(SrcMgr, *MAI, Out->os());  in main()
548     IP->setUseMarkup(1);  in main()
557                                     *Buffer, SrcMgr, Out->os());  in main()
560   if (Res == 0) Out->keep();  in main()