1 //===-- llvm-mc.cpp - Machine Code Hacking Driver ---------------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
12 //===----------------------------------------------------------------------===//
50                                           cl::init("-"), cl::cat(MCCategory));
58                                            cl::init("-"), cl::cat(MCCategory));
60 static cl::opt<std::string> SplitDwarfFile("split-dwarf-file",
65 static cl::opt<bool> ShowEncoding("show-encoding",
70     "compress-debug-sections", cl::ValueOptional,
73     cl::values(clEnumValN(DebugCompressionType::None, "none", "No compression"),
79     ShowInst("show-inst", cl::desc("Show internal instruction representation"),
83     ShowInstOperands("show-inst-operands",
88     OutputAsmVariant("output-asm-variant",
93     PrintImmHex("print-imm-hex", cl::init(false),
103     PreserveComments("preserve-comments",
131                       "see -version for available targets"),
137                         "see -version for available targets"),
142          cl::desc("Target a specific cpu type (-mcpu=help for details)"),
143          cl::value_desc("cpu-name"), cl::init(""), cl::cat(MCCategory));
147            cl::desc("Target specific attributes (-mattr=help for details)"),
148            cl::value_desc("a1,+a2,-a3,..."), cl::cat(MCCategory));
150 static cl::opt<bool> PIC("position-independent",  variable
155     LargeCodeModel("large-code-model",
173     DebugCompilationDir("fdebug-compilation-dir",
178     "fdebug-prefix-map", cl::desc("Map file source paths in debug info"),
179     cl::value_desc("= separated key-value pairs"), cl::cat(MCCategory));
182     "main-file-name",
187     "masm-integers",
192     "masm-hexfloats",
193     cl::desc("Enable MASM-style hex float initializers (3F800000r)"),
197     "motorola-integers",
201 static cl::opt<bool> NoExecStack("no-exec-stack",
215     cl::values(clEnumValN(AC_AsLex, "as-lex", "Lex tokens from a .s file"),
280   Lexer.setBuffer(SrcMgr.getMemoryBuffer(SrcMgr.getMainFileID())->getBuffer());  in AsLexInput()
321       TheTarget->createMCAsmParser(STI, *Parser, MCII, MCOptions));  in AssembleInput()
332   Parser->setShowParsedOperands(ShowInstOperands);  in AssembleInput()
333   Parser->setTargetParser(*TAP);  in AssembleInput()
334   Parser->getLexer().setLexMasmIntegers(LexMasmIntegers);  in AssembleInput()
335   Parser->getLexer().setLexMasmHexFloats(LexMasmHexFloats);  in AssembleInput()
336   Parser->getLexer().setLexMotorolaIntegers(LexMotorolaIntegers);  in AssembleInput()
338   int Res = Parser->Run(NoInitialTextSection);  in AssembleInput()
352   // Register the target printer for --version.  in main()
381   MemoryBuffer *Buffer = BufferPtr->get();  in main()
392   std::unique_ptr<MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName));  in main()
396       TheTarget->createMCAsmInfo(*MRI, TripleName, MCOptions));  in main()
403           << "--compress-debug-sections: " << Reason;  in main()
407   MAI->setPreserveAsmComments(PreserveComments);  in main()
419       TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));  in main()
427       TheTarget->createMCObjectFileInfo(Ctx, PIC, LargeCodeModel));  in main()
440     // The 64-bit DWARF format was introduced in DWARFv3.  in main()
443              << ": the 64-bit DWARF format is not supported for DWARF versions "  in main()
447     // 32-bit targets don't support DWARF64, which requires 64-bit relocations.  in main()
448     if (MAI->getCodePointerSize() < 8) {  in main()
450              << ": the 64-bit DWARF format is only supported for 64-bit "  in main()
456     // is supported only for 4-byte long references.  in main()
457     if (MAI->needsDwarfSectionOffsetDirective()) {  in main()
458       errs() << ProgName << ": the 64-bit DWARF format is not supported for "  in main()
471     // If no compilation dir is set, try to use the current directory.  in main()
483     Ctx.setGenDwarfRootFile(InputFilename, Buffer->getBuffer());  in main()
504   raw_pwrite_stream *OS = &Out->os();  in main()
507   std::unique_ptr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());  in main()
512     IP = TheTarget->createMCInstPrinter(Triple(TripleName), OutputAsmVariant,  in main()
524       if (!IP->applyTargetSpecificCLOption(Opt)) {  in main()
530     IP->setPrintImmHex(PrintImmHex);  in main()
535       CE.reset(TheTarget->createMCCodeEmitter(*MCII, Ctx));  in main()
538         TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions));  in main()
540     Str.reset(TheTarget->createAsmStreamer(Ctx, std::move(FOut), IP,  in main()
544     Str.reset(TheTarget->createNullStreamer(Ctx));  in main()
548     if (!Out->os().supportsSeeking()) {  in main()
549       BOS = std::make_unique<buffer_ostream>(Out->os());  in main()
553     MCCodeEmitter *CE = TheTarget->createMCCodeEmitter(*MCII, Ctx);  in main()
554     MCAsmBackend *MAB = TheTarget->createMCAsmBackend(*STI, *MRI, MCOptions);  in main()
555     Str.reset(TheTarget->createMCObjectStreamer(  in main()
557         DwoOut ? MAB->createDwoObjectWriter(*OS, DwoOut->os())  in main()
558                : MAB->createObjectWriter(*OS),  in main()
561       Str->initSections(true, *STI);  in main()
568     Res = AsLexInput(SrcMgr, *MAI, Out->os());  in main()
575     IP->setUseMarkup(true);  in main()
579     IP->setUseColor(true);  in main()
590   // Keep output if no errors.  in main()
592     Out->keep();  in main()
594       DwoOut->keep();  in main()