1 //===--- CompilerInvocation.cpp -------------------------------------------===// 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 #include "clang/Frontend/CompilerInvocation.h" 11 #include "clang/Basic/Diagnostic.h" 12 #include "clang/Basic/Version.h" 13 #include "clang/Driver/Arg.h" 14 #include "clang/Driver/ArgList.h" 15 #include "clang/Driver/CC1Options.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/OptTable.h" 18 #include "clang/Driver/Option.h" 19 #include "clang/Frontend/CompilerInvocation.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Serialization/ASTReader.h" 22 #include "llvm/ADT/OwningPtr.h" 23 #include "llvm/ADT/SmallVector.h" 24 #include "llvm/ADT/StringExtras.h" 25 #include "llvm/ADT/StringSwitch.h" 26 #include "llvm/Support/ErrorHandling.h" 27 #include "llvm/System/Host.h" 28 #include "llvm/System/Path.h" 29 using namespace clang; 30 31 static const char *getAnalysisName(Analyses Kind) { 32 switch (Kind) { 33 default: 34 llvm_unreachable("Unknown analysis kind!"); 35 #define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE)\ 36 case NAME: return "-" CMDFLAG; 37 #include "clang/Frontend/Analyses.def" 38 } 39 } 40 41 static const char *getAnalysisStoreName(AnalysisStores Kind) { 42 switch (Kind) { 43 default: 44 llvm_unreachable("Unknown analysis store!"); 45 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 46 case NAME##Model: return CMDFLAG; 47 #include "clang/Frontend/Analyses.def" 48 } 49 } 50 51 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) { 52 switch (Kind) { 53 default: 54 llvm_unreachable("Unknown analysis constraints!"); 55 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 56 case NAME##Model: return CMDFLAG; 57 #include "clang/Frontend/Analyses.def" 58 } 59 } 60 61 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) { 62 switch (Kind) { 63 default: 64 llvm_unreachable("Unknown analysis client!"); 65 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \ 66 case PD_##NAME: return CMDFLAG; 67 #include "clang/Frontend/Analyses.def" 68 } 69 } 70 71 //===----------------------------------------------------------------------===// 72 // Serialization (to args) 73 //===----------------------------------------------------------------------===// 74 75 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, 76 std::vector<std::string> &Res) { 77 for (unsigned i = 0, e = Opts.AnalysisList.size(); i != e; ++i) 78 Res.push_back(getAnalysisName(Opts.AnalysisList[i])); 79 if (Opts.AnalysisStoreOpt != BasicStoreModel) { 80 Res.push_back("-analyzer-store"); 81 Res.push_back(getAnalysisStoreName(Opts.AnalysisStoreOpt)); 82 } 83 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 84 Res.push_back("-analyzer-constraints"); 85 Res.push_back(getAnalysisConstraintName(Opts.AnalysisConstraintsOpt)); 86 } 87 if (Opts.AnalysisDiagOpt != PD_HTML) { 88 Res.push_back("-analyzer-output"); 89 Res.push_back(getAnalysisDiagClientName(Opts.AnalysisDiagOpt)); 90 } 91 if (!Opts.AnalyzeSpecificFunction.empty()) { 92 Res.push_back("-analyze-function"); 93 Res.push_back(Opts.AnalyzeSpecificFunction); 94 } 95 if (Opts.AnalyzeAll) 96 Res.push_back("-analyzer-opt-analyze-headers"); 97 if (Opts.AnalyzerDisplayProgress) 98 Res.push_back("-analyzer-display-progress"); 99 if (Opts.AnalyzeNestedBlocks) 100 Res.push_back("-analyzer-opt-analyze-nested-blocks"); 101 if (Opts.EagerlyAssume) 102 Res.push_back("-analyzer-eagerly-assume"); 103 if (!Opts.PurgeDead) 104 Res.push_back("-analyzer-no-purge-dead"); 105 if (Opts.TrimGraph) 106 Res.push_back("-trim-egraph"); 107 if (Opts.VisualizeEGDot) 108 Res.push_back("-analyzer-viz-egraph-graphviz"); 109 if (Opts.VisualizeEGDot) 110 Res.push_back("-analyzer-viz-egraph-ubigraph"); 111 if (Opts.EnableExperimentalChecks) 112 Res.push_back("-analyzer-experimental-checks"); 113 if (Opts.EnableExperimentalInternalChecks) 114 Res.push_back("-analyzer-experimental-internal-checks"); 115 if (Opts.IdempotentOps) 116 Res.push_back("-analyzer-check-idempotent-operations"); 117 } 118 119 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, 120 std::vector<std::string> &Res) { 121 if (Opts.DebugInfo) 122 Res.push_back("-g"); 123 if (Opts.DisableLLVMOpts) 124 Res.push_back("-disable-llvm-optzns"); 125 if (Opts.DisableRedZone) 126 Res.push_back("-disable-red-zone"); 127 if (!Opts.DwarfDebugFlags.empty()) { 128 Res.push_back("-dwarf-debug-flags"); 129 Res.push_back(Opts.DwarfDebugFlags); 130 } 131 if (!Opts.MergeAllConstants) 132 Res.push_back("-fno-merge-all-constants"); 133 if (Opts.NoCommon) 134 Res.push_back("-fno-common"); 135 if (Opts.NoImplicitFloat) 136 Res.push_back("-no-implicit-float"); 137 if (Opts.OmitLeafFramePointer) 138 Res.push_back("-momit-leaf-frame-pointer"); 139 if (Opts.OptimizeSize) { 140 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 141 Res.push_back("-Os"); 142 } else if (Opts.OptimizationLevel != 0) 143 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 144 if (!Opts.MainFileName.empty()) { 145 Res.push_back("-main-file-name"); 146 Res.push_back(Opts.MainFileName); 147 } 148 // SimplifyLibCalls is only derived. 149 // TimePasses is only derived. 150 // UnitAtATime is unused. 151 // Inlining is only derived. 152 153 // UnrollLoops is derived, but also accepts an option, no 154 // harm in pushing it back here. 155 if (Opts.UnrollLoops) 156 Res.push_back("-funroll-loops"); 157 if (Opts.DataSections) 158 Res.push_back("-fdata-sections"); 159 if (Opts.FunctionSections) 160 Res.push_back("-ffunction-sections"); 161 if (Opts.AsmVerbose) 162 Res.push_back("-masm-verbose"); 163 if (!Opts.CodeModel.empty()) { 164 Res.push_back("-mcode-model"); 165 Res.push_back(Opts.CodeModel); 166 } 167 if (!Opts.CXAAtExit) 168 Res.push_back("-fno-use-cxa-atexit"); 169 if (Opts.CXXCtorDtorAliases) 170 Res.push_back("-mconstructor-aliases"); 171 if (!Opts.DebugPass.empty()) { 172 Res.push_back("-mdebug-pass"); 173 Res.push_back(Opts.DebugPass); 174 } 175 if (Opts.DisableFPElim) 176 Res.push_back("-mdisable-fp-elim"); 177 if (!Opts.FloatABI.empty()) { 178 Res.push_back("-mfloat-abi"); 179 Res.push_back(Opts.FloatABI); 180 } 181 if (!Opts.LimitFloatPrecision.empty()) { 182 Res.push_back("-mlimit-float-precision"); 183 Res.push_back(Opts.LimitFloatPrecision); 184 } 185 if (Opts.NoZeroInitializedInBSS) 186 Res.push_back("-mno-zero-initialized-bss"); 187 switch (Opts.getObjCDispatchMethod()) { 188 case CodeGenOptions::Legacy: 189 break; 190 case CodeGenOptions::Mixed: 191 Res.push_back("-fobjc-dispatch-method=mixed"); 192 break; 193 case CodeGenOptions::NonLegacy: 194 Res.push_back("-fobjc-dispatch-method=non-legacy"); 195 break; 196 } 197 if (Opts.RelaxAll) 198 Res.push_back("-mrelax-all"); 199 if (Opts.SoftFloat) 200 Res.push_back("-msoft-float"); 201 if (Opts.UnwindTables) 202 Res.push_back("-munwind-tables"); 203 if (Opts.RelocationModel != "pic") { 204 Res.push_back("-mrelocation-model"); 205 Res.push_back(Opts.RelocationModel); 206 } 207 if (!Opts.VerifyModule) 208 Res.push_back("-disable-llvm-verifier"); 209 } 210 211 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 212 std::vector<std::string> &Res) { 213 if (Opts.IncludeSystemHeaders) 214 Res.push_back("-sys-header-deps"); 215 if (Opts.UsePhonyTargets) 216 Res.push_back("-MP"); 217 if (!Opts.OutputFile.empty()) { 218 Res.push_back("-dependency-file"); 219 Res.push_back(Opts.OutputFile); 220 } 221 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) { 222 Res.push_back("-MT"); 223 Res.push_back(Opts.Targets[i]); 224 } 225 } 226 227 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 228 std::vector<std::string> &Res) { 229 if (Opts.IgnoreWarnings) 230 Res.push_back("-w"); 231 if (Opts.NoRewriteMacros) 232 Res.push_back("-Wno-rewrite-macros"); 233 if (Opts.Pedantic) 234 Res.push_back("-pedantic"); 235 if (Opts.PedanticErrors) 236 Res.push_back("-pedantic-errors"); 237 if (!Opts.ShowColumn) 238 Res.push_back("-fno-show-column"); 239 if (!Opts.ShowLocation) 240 Res.push_back("-fno-show-source-location"); 241 if (!Opts.ShowCarets) 242 Res.push_back("-fno-caret-diagnostics"); 243 if (!Opts.ShowFixits) 244 Res.push_back("-fno-diagnostics-fixit-info"); 245 if (Opts.ShowSourceRanges) 246 Res.push_back("-fdiagnostics-print-source-range-info"); 247 if (Opts.ShowParseableFixits) 248 Res.push_back("-fdiagnostics-parseable-fixits"); 249 if (Opts.ShowColors) 250 Res.push_back("-fcolor-diagnostics"); 251 if (Opts.VerifyDiagnostics) 252 Res.push_back("-verify"); 253 if (Opts.BinaryOutput) 254 Res.push_back("-fdiagnostics-binary"); 255 if (Opts.ShowOptionNames) 256 Res.push_back("-fdiagnostics-show-option"); 257 if (Opts.ShowCategories == 1) 258 Res.push_back("-fdiagnostics-show-category=id"); 259 else if (Opts.ShowCategories == 2) 260 Res.push_back("-fdiagnostics-show-category=name"); 261 if (Opts.ErrorLimit) { 262 Res.push_back("-ferror-limit"); 263 Res.push_back(llvm::utostr(Opts.ErrorLimit)); 264 } 265 if (Opts.MacroBacktraceLimit 266 != DiagnosticOptions::DefaultMacroBacktraceLimit) { 267 Res.push_back("-fmacro-backtrace-limit"); 268 Res.push_back(llvm::utostr(Opts.MacroBacktraceLimit)); 269 } 270 if (Opts.TemplateBacktraceLimit 271 != DiagnosticOptions::DefaultTemplateBacktraceLimit) { 272 Res.push_back("-ftemplate-backtrace-limit"); 273 Res.push_back(llvm::utostr(Opts.TemplateBacktraceLimit)); 274 } 275 276 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) { 277 Res.push_back("-ftabstop"); 278 Res.push_back(llvm::utostr(Opts.TabStop)); 279 } 280 if (Opts.MessageLength) { 281 Res.push_back("-fmessage-length"); 282 Res.push_back(llvm::utostr(Opts.MessageLength)); 283 } 284 if (!Opts.DumpBuildInformation.empty()) { 285 Res.push_back("-dump-build-information"); 286 Res.push_back(Opts.DumpBuildInformation); 287 } 288 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 289 Res.push_back("-W" + Opts.Warnings[i]); 290 } 291 292 static const char *getInputKindName(InputKind Kind) { 293 switch (Kind) { 294 case IK_None: break; 295 case IK_AST: return "ast"; 296 case IK_Asm: return "assembler-with-cpp"; 297 case IK_C: return "c"; 298 case IK_CXX: return "c++"; 299 case IK_LLVM_IR: return "ir"; 300 case IK_ObjC: return "objective-c"; 301 case IK_ObjCXX: return "objective-c++"; 302 case IK_OpenCL: return "cl"; 303 case IK_PreprocessedC: return "cpp-output"; 304 case IK_PreprocessedCXX: return "c++-cpp-output"; 305 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 306 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 307 } 308 309 llvm_unreachable("Unexpected language kind!"); 310 return 0; 311 } 312 313 static const char *getActionName(frontend::ActionKind Kind) { 314 switch (Kind) { 315 case frontend::PluginAction: 316 case frontend::InheritanceView: 317 llvm_unreachable("Invalid kind!"); 318 319 case frontend::ASTDump: return "-ast-dump"; 320 case frontend::ASTPrint: return "-ast-print"; 321 case frontend::ASTPrintXML: return "-ast-print-xml"; 322 case frontend::ASTView: return "-ast-view"; 323 case frontend::BoostCon: return "-boostcon"; 324 case frontend::CreateModule: return "-create-module"; 325 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 326 case frontend::DumpTokens: return "-dump-tokens"; 327 case frontend::EmitAssembly: return "-S"; 328 case frontend::EmitBC: return "-emit-llvm-bc"; 329 case frontend::EmitHTML: return "-emit-html"; 330 case frontend::EmitLLVM: return "-emit-llvm"; 331 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 332 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 333 case frontend::EmitObj: return "-emit-obj"; 334 case frontend::FixIt: return "-fixit"; 335 case frontend::GeneratePCH: return "-emit-pch"; 336 case frontend::GeneratePTH: return "-emit-pth"; 337 case frontend::InitOnly: return "-init-only"; 338 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 339 case frontend::PrintDeclContext: return "-print-decl-contexts"; 340 case frontend::PrintPreamble: return "-print-preamble"; 341 case frontend::PrintPreprocessedInput: return "-E"; 342 case frontend::RewriteMacros: return "-rewrite-macros"; 343 case frontend::RewriteObjC: return "-rewrite-objc"; 344 case frontend::RewriteTest: return "-rewrite-test"; 345 case frontend::RunAnalysis: return "-analyze"; 346 case frontend::RunPreprocessorOnly: return "-Eonly"; 347 } 348 349 llvm_unreachable("Unexpected language kind!"); 350 return 0; 351 } 352 353 static void FrontendOptsToArgs(const FrontendOptions &Opts, 354 std::vector<std::string> &Res) { 355 if (!Opts.DebugCodeCompletionPrinter) 356 Res.push_back("-no-code-completion-debug-printer"); 357 if (Opts.DisableFree) 358 Res.push_back("-disable-free"); 359 if (Opts.RelocatablePCH) 360 Res.push_back("-relocatable-pch"); 361 if (Opts.ChainedPCH) 362 Res.push_back("-chained-pch"); 363 if (Opts.ShowHelp) 364 Res.push_back("-help"); 365 if (Opts.ShowMacrosInCodeCompletion) 366 Res.push_back("-code-completion-macros"); 367 if (Opts.ShowCodePatternsInCodeCompletion) 368 Res.push_back("-code-completion-patterns"); 369 if (!Opts.ShowGlobalSymbolsInCodeCompletion) 370 Res.push_back("-no-code-completion-globals"); 371 if (Opts.ShowStats) 372 Res.push_back("-print-stats"); 373 if (Opts.ShowTimers) 374 Res.push_back("-ftime-report"); 375 if (Opts.ShowVersion) 376 Res.push_back("-version"); 377 if (Opts.FixWhatYouCan) 378 Res.push_back("-fix-what-you-can"); 379 380 bool NeedLang = false; 381 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 382 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].second) != 383 Opts.Inputs[i].first) 384 NeedLang = true; 385 if (NeedLang) { 386 Res.push_back("-x"); 387 Res.push_back(getInputKindName(Opts.Inputs[0].first)); 388 } 389 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 390 assert((!NeedLang || Opts.Inputs[i].first == Opts.Inputs[0].first) && 391 "Unable to represent this input vector!"); 392 Res.push_back(Opts.Inputs[i].second); 393 } 394 395 if (!Opts.OutputFile.empty()) { 396 Res.push_back("-o"); 397 Res.push_back(Opts.OutputFile); 398 } 399 if (!Opts.ViewClassInheritance.empty()) { 400 Res.push_back("-cxx-inheritance-view"); 401 Res.push_back(Opts.ViewClassInheritance); 402 } 403 if (!Opts.CodeCompletionAt.FileName.empty()) { 404 Res.push_back("-code-completion-at"); 405 Res.push_back(Opts.CodeCompletionAt.FileName + ":" + 406 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 407 llvm::utostr(Opts.CodeCompletionAt.Column)); 408 } 409 if (Opts.ProgramAction != frontend::InheritanceView && 410 Opts.ProgramAction != frontend::PluginAction) 411 Res.push_back(getActionName(Opts.ProgramAction)); 412 if (!Opts.ActionName.empty()) { 413 Res.push_back("-plugin"); 414 Res.push_back(Opts.ActionName); 415 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) { 416 Res.push_back("-plugin-arg-" + Opts.ActionName); 417 Res.push_back(Opts.PluginArgs[i]); 418 } 419 } 420 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) { 421 Res.push_back("-load"); 422 Res.push_back(Opts.Plugins[i]); 423 } 424 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) { 425 Res.push_back("-ast-merge"); 426 Res.push_back(Opts.ASTMergeFiles[i]); 427 } 428 for (unsigned i = 0, e = Opts.Modules.size(); i != e; ++i) { 429 Res.push_back("-import-module"); 430 Res.push_back(Opts.Modules[i]); 431 } 432 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) { 433 Res.push_back("-mllvm"); 434 Res.push_back(Opts.LLVMArgs[i]); 435 } 436 } 437 438 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 439 std::vector<std::string> &Res) { 440 if (Opts.Sysroot != "/") { 441 Res.push_back("-isysroot"); 442 Res.push_back(Opts.Sysroot); 443 } 444 445 /// User specified include entries. 446 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 447 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 448 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 449 llvm::report_fatal_error("Invalid option set!"); 450 if (E.IsUserSupplied) { 451 if (E.Group == frontend::After) { 452 Res.push_back("-idirafter"); 453 } else if (E.Group == frontend::Quoted) { 454 Res.push_back("-iquote"); 455 } else if (E.Group == frontend::System) { 456 Res.push_back("-isystem"); 457 } else { 458 assert(E.Group == frontend::Angled && "Invalid group!"); 459 Res.push_back(E.IsFramework ? "-F" : "-I"); 460 } 461 } else { 462 if (E.Group != frontend::Angled && E.Group != frontend::System) 463 llvm::report_fatal_error("Invalid option set!"); 464 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 465 "-iwithprefix"); 466 } 467 Res.push_back(E.Path); 468 } 469 470 if (!Opts.EnvIncPath.empty()) { 471 // FIXME: Provide an option for this, and move env detection to driver. 472 llvm::report_fatal_error("Not yet implemented!"); 473 } 474 if (!Opts.CEnvIncPath.empty()) { 475 // FIXME: Provide an option for this, and move env detection to driver. 476 llvm::report_fatal_error("Not yet implemented!"); 477 } 478 if (!Opts.ObjCEnvIncPath.empty()) { 479 // FIXME: Provide an option for this, and move env detection to driver. 480 llvm::report_fatal_error("Not yet implemented!"); 481 } 482 if (!Opts.CXXEnvIncPath.empty()) { 483 // FIXME: Provide an option for this, and move env detection to driver. 484 llvm::report_fatal_error("Not yet implemented!"); 485 } 486 if (!Opts.ObjCXXEnvIncPath.empty()) { 487 // FIXME: Provide an option for this, and move env detection to driver. 488 llvm::report_fatal_error("Not yet implemented!"); 489 } 490 if (!Opts.ResourceDir.empty()) { 491 Res.push_back("-resource-dir"); 492 Res.push_back(Opts.ResourceDir); 493 } 494 if (!Opts.UseStandardIncludes) 495 Res.push_back("-nostdinc"); 496 if (!Opts.UseStandardCXXIncludes) 497 Res.push_back("-nostdinc++"); 498 if (Opts.Verbose) 499 Res.push_back("-v"); 500 } 501 502 static void LangOptsToArgs(const LangOptions &Opts, 503 std::vector<std::string> &Res) { 504 LangOptions DefaultLangOpts; 505 506 // FIXME: Need to set -std to get all the implicit options. 507 508 // FIXME: We want to only pass options relative to the defaults, which 509 // requires constructing a target. :( 510 // 511 // It would be better to push the all target specific choices into the driver, 512 // so that everything below that was more uniform. 513 514 if (Opts.Trigraphs) 515 Res.push_back("-trigraphs"); 516 // Implicit based on the input kind: 517 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 518 // Implicit based on the input language standard: 519 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 520 if (Opts.DollarIdents) 521 Res.push_back("-fdollars-in-identifiers"); 522 if (Opts.GNUMode && !Opts.GNUKeywords) 523 Res.push_back("-fno-gnu-keywords"); 524 if (!Opts.GNUMode && Opts.GNUKeywords) 525 Res.push_back("-fgnu-keywords"); 526 if (Opts.Microsoft) 527 Res.push_back("-fms-extensions"); 528 if (Opts.ObjCNonFragileABI) 529 Res.push_back("-fobjc-nonfragile-abi"); 530 if (Opts.ObjCNonFragileABI2) 531 Res.push_back("-fobjc-nonfragile-abi2"); 532 // NoInline is implicit. 533 if (!Opts.CXXOperatorNames) 534 Res.push_back("-fno-operator-names"); 535 if (Opts.PascalStrings) 536 Res.push_back("-fpascal-strings"); 537 if (Opts.CatchUndefined) 538 Res.push_back("-fcatch-undefined-behavior"); 539 if (Opts.WritableStrings) 540 Res.push_back("-fwritable-strings"); 541 if (Opts.ConstStrings) 542 Res.push_back("-Wwrite-strings"); 543 if (!Opts.LaxVectorConversions) 544 Res.push_back("-fno-lax-vector-conversions"); 545 if (Opts.AltiVec) 546 Res.push_back("-faltivec"); 547 if (Opts.Exceptions) 548 Res.push_back("-fexceptions"); 549 if (Opts.SjLjExceptions) 550 Res.push_back("-fsjlj-exceptions"); 551 if (!Opts.RTTI) 552 Res.push_back("-fno-rtti"); 553 if (!Opts.NeXTRuntime) 554 Res.push_back("-fgnu-runtime"); 555 if (Opts.Freestanding) 556 Res.push_back("-ffreestanding"); 557 if (Opts.NoBuiltin) 558 Res.push_back("-fno-builtin"); 559 if (!Opts.AssumeSaneOperatorNew) 560 Res.push_back("-fno-assume-sane-operator-new"); 561 if (!Opts.ThreadsafeStatics) 562 Res.push_back("-fno-threadsafe-statics"); 563 if (Opts.POSIXThreads) 564 Res.push_back("-pthread"); 565 if (Opts.Blocks) 566 Res.push_back("-fblocks"); 567 if (Opts.EmitAllDecls) 568 Res.push_back("-femit-all-decls"); 569 if (Opts.MathErrno) 570 Res.push_back("-fmath-errno"); 571 switch (Opts.getSignedOverflowBehavior()) { 572 case LangOptions::SOB_Undefined: break; 573 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 574 case LangOptions::SOB_Trapping: Res.push_back("-ftrapv"); break; 575 } 576 if (Opts.HeinousExtensions) 577 Res.push_back("-fheinous-gnu-extensions"); 578 // Optimize is implicit. 579 // OptimizeSize is implicit. 580 if (Opts.Static) 581 Res.push_back("-static-define"); 582 if (Opts.DumpRecordLayouts) 583 Res.push_back("-fdump-record-layouts"); 584 if (Opts.DumpVTableLayouts) 585 Res.push_back("-fdump-vtable-layouts"); 586 if (Opts.NoBitFieldTypeAlign) 587 Res.push_back("-fno-bitfield-type-alignment"); 588 if (Opts.SjLjExceptions) 589 Res.push_back("-fsjlj-exceptions"); 590 if (Opts.PICLevel) { 591 Res.push_back("-pic-level"); 592 Res.push_back(llvm::utostr(Opts.PICLevel)); 593 } 594 if (Opts.ObjCGCBitmapPrint) 595 Res.push_back("-print-ivar-layout"); 596 if (Opts.NoConstantCFStrings) 597 Res.push_back("-fno-constant-cfstrings"); 598 if (!Opts.AccessControl) 599 Res.push_back("-fno-access-control"); 600 if (!Opts.CharIsSigned) 601 Res.push_back("-fno-signed-char"); 602 if (Opts.ShortWChar) 603 Res.push_back("-fshort-wchar"); 604 if (!Opts.ElideConstructors) 605 Res.push_back("-fno-elide-constructors"); 606 if (Opts.getGCMode() != LangOptions::NonGC) { 607 if (Opts.getGCMode() == LangOptions::HybridGC) { 608 Res.push_back("-fobjc-gc"); 609 } else { 610 assert(Opts.getGCMode() == LangOptions::GCOnly && "Invalid GC mode!"); 611 Res.push_back("-fobjc-gc-only"); 612 } 613 } 614 if (Opts.getVisibilityMode() != LangOptions::Default) { 615 Res.push_back("-fvisibility"); 616 if (Opts.getVisibilityMode() == LangOptions::Hidden) { 617 Res.push_back("hidden"); 618 } else { 619 assert(Opts.getVisibilityMode() == LangOptions::Protected && 620 "Invalid visibility!"); 621 Res.push_back("protected"); 622 } 623 } 624 if (Opts.InlineVisibilityHidden) 625 Res.push_back("-fvisibility-inlines-hidden"); 626 627 if (Opts.getStackProtectorMode() != 0) { 628 Res.push_back("-stack-protector"); 629 Res.push_back(llvm::utostr(Opts.getStackProtectorMode())); 630 } 631 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) { 632 Res.push_back("-ftemplate-depth"); 633 Res.push_back(llvm::utostr(Opts.InstantiationDepth)); 634 } 635 if (!Opts.ObjCConstantStringClass.empty()) { 636 Res.push_back("-fconstant-string-class"); 637 Res.push_back(Opts.ObjCConstantStringClass); 638 } 639 } 640 641 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 642 std::vector<std::string> &Res) { 643 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 644 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 645 Opts.Macros[i].first); 646 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 647 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 648 Res.push_back("-include"); 649 Res.push_back(Opts.Includes[i]); 650 } 651 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) { 652 Res.push_back("-imacros"); 653 Res.push_back(Opts.MacroIncludes[i]); 654 } 655 if (!Opts.UsePredefines) 656 Res.push_back("-undef"); 657 if (Opts.DetailedRecord) 658 Res.push_back("-detailed-preprocessing-record"); 659 if (!Opts.ImplicitPCHInclude.empty()) { 660 Res.push_back("-include-pch"); 661 Res.push_back(Opts.ImplicitPCHInclude); 662 } 663 if (!Opts.ImplicitPTHInclude.empty()) { 664 Res.push_back("-include-pth"); 665 Res.push_back(Opts.ImplicitPTHInclude); 666 } 667 if (!Opts.TokenCache.empty()) { 668 if (Opts.ImplicitPTHInclude.empty()) { 669 Res.push_back("-token-cache"); 670 Res.push_back(Opts.TokenCache); 671 } else 672 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 673 "Unsupported option combination!"); 674 } 675 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 676 Res.push_back("-remap-file"); 677 Res.push_back(Opts.RemappedFiles[i].first + ";" + 678 Opts.RemappedFiles[i].second); 679 } 680 } 681 682 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 683 std::vector<std::string> &Res) { 684 if (!Opts.ShowCPP && !Opts.ShowMacros) 685 llvm::report_fatal_error("Invalid option combination!"); 686 687 if (Opts.ShowCPP && Opts.ShowMacros) 688 Res.push_back("-dD"); 689 else if (!Opts.ShowCPP && Opts.ShowMacros) 690 Res.push_back("-dM"); 691 692 if (!Opts.ShowLineMarkers) 693 Res.push_back("-P"); 694 if (Opts.ShowComments) 695 Res.push_back("-C"); 696 if (Opts.ShowMacroComments) 697 Res.push_back("-CC"); 698 } 699 700 static void TargetOptsToArgs(const TargetOptions &Opts, 701 std::vector<std::string> &Res) { 702 Res.push_back("-triple"); 703 Res.push_back(Opts.Triple); 704 if (!Opts.CPU.empty()) { 705 Res.push_back("-target-cpu"); 706 Res.push_back(Opts.CPU); 707 } 708 if (!Opts.ABI.empty()) { 709 Res.push_back("-target-abi"); 710 Res.push_back(Opts.ABI); 711 } 712 if (!Opts.LinkerVersion.empty()) { 713 Res.push_back("-target-linker-version"); 714 Res.push_back(Opts.LinkerVersion); 715 } 716 if (!Opts.CXXABI.empty()) { 717 Res.push_back("-cxx-abi"); 718 Res.push_back(Opts.CXXABI); 719 } 720 for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) { 721 Res.push_back("-target-feature"); 722 Res.push_back(Opts.Features[i]); 723 } 724 } 725 726 void CompilerInvocation::toArgs(std::vector<std::string> &Res) { 727 AnalyzerOptsToArgs(getAnalyzerOpts(), Res); 728 CodeGenOptsToArgs(getCodeGenOpts(), Res); 729 DependencyOutputOptsToArgs(getDependencyOutputOpts(), Res); 730 DiagnosticOptsToArgs(getDiagnosticOpts(), Res); 731 FrontendOptsToArgs(getFrontendOpts(), Res); 732 HeaderSearchOptsToArgs(getHeaderSearchOpts(), Res); 733 LangOptsToArgs(getLangOpts(), Res); 734 PreprocessorOptsToArgs(getPreprocessorOpts(), Res); 735 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), Res); 736 TargetOptsToArgs(getTargetOpts(), Res); 737 } 738 739 //===----------------------------------------------------------------------===// 740 // Deserialization (to args) 741 //===----------------------------------------------------------------------===// 742 743 using namespace clang::driver; 744 using namespace clang::driver::cc1options; 745 746 // 747 748 static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 749 Diagnostic &Diags) { 750 using namespace cc1options; 751 752 Opts.AnalysisList.clear(); 753 #define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE) \ 754 if (Args.hasArg(OPT_analysis_##NAME)) Opts.AnalysisList.push_back(NAME); 755 #include "clang/Frontend/Analyses.def" 756 757 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 758 llvm::StringRef Name = A->getValue(Args); 759 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 760 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 761 .Case(CMDFLAG, NAME##Model) 762 #include "clang/Frontend/Analyses.def" 763 .Default(NumStores); 764 // FIXME: Error handling. 765 if (Value == NumStores) 766 Diags.Report(diag::err_drv_invalid_value) 767 << A->getAsString(Args) << Name; 768 else 769 Opts.AnalysisStoreOpt = Value; 770 } 771 772 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 773 llvm::StringRef Name = A->getValue(Args); 774 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 775 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 776 .Case(CMDFLAG, NAME##Model) 777 #include "clang/Frontend/Analyses.def" 778 .Default(NumConstraints); 779 // FIXME: Error handling. 780 if (Value == NumConstraints) 781 Diags.Report(diag::err_drv_invalid_value) 782 << A->getAsString(Args) << Name; 783 else 784 Opts.AnalysisConstraintsOpt = Value; 785 } 786 787 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 788 llvm::StringRef Name = A->getValue(Args); 789 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 790 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 791 .Case(CMDFLAG, PD_##NAME) 792 #include "clang/Frontend/Analyses.def" 793 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 794 // FIXME: Error handling. 795 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) 796 Diags.Report(diag::err_drv_invalid_value) 797 << A->getAsString(Args) << Name; 798 else 799 Opts.AnalysisDiagOpt = Value; 800 } 801 802 Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 803 Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 804 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 805 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 806 Opts.AnalyzeNestedBlocks = 807 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 808 Opts.PurgeDead = !Args.hasArg(OPT_analyzer_no_purge_dead); 809 Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume); 810 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 811 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 812 Opts.EnableExperimentalChecks = Args.hasArg(OPT_analyzer_experimental_checks); 813 Opts.EnableExperimentalInternalChecks = 814 Args.hasArg(OPT_analyzer_experimental_internal_checks); 815 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 816 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 817 Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 3, Diags); 818 Opts.InlineCall = Args.hasArg(OPT_analyzer_inline_call); 819 Opts.IdempotentOps = Args.hasArg(OPT_analysis_WarnIdempotentOps); 820 } 821 822 static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 823 Diagnostic &Diags) { 824 using namespace cc1options; 825 // -Os implies -O2 826 if (Args.hasArg(OPT_Os)) 827 Opts.OptimizationLevel = 2; 828 else { 829 Opts.OptimizationLevel = Args.getLastArgIntValue(OPT_O, 0, Diags); 830 if (Opts.OptimizationLevel > 3) { 831 Diags.Report(diag::err_drv_invalid_value) 832 << Args.getLastArg(OPT_O)->getAsString(Args) << Opts.OptimizationLevel; 833 Opts.OptimizationLevel = 3; 834 } 835 } 836 837 // We must always run at least the always inlining pass. 838 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 839 : CodeGenOptions::OnlyAlwaysInlining; 840 841 Opts.DebugInfo = Args.hasArg(OPT_g); 842 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 843 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 844 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 845 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 846 Opts.NoCommon = Args.hasArg(OPT_fno_common); 847 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 848 Opts.OptimizeSize = Args.hasArg(OPT_Os); 849 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 850 Args.hasArg(OPT_ffreestanding)); 851 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 852 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 853 854 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 855 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 856 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 857 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 858 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 859 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 860 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 861 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 862 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 863 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 864 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 865 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 866 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 867 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 868 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 869 870 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 871 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 872 873 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 874 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 875 876 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 877 878 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 879 llvm::StringRef Name = A->getValue(Args); 880 unsigned Method = llvm::StringSwitch<unsigned>(Name) 881 .Case("legacy", CodeGenOptions::Legacy) 882 .Case("non-legacy", CodeGenOptions::NonLegacy) 883 .Case("mixed", CodeGenOptions::Mixed) 884 .Default(~0U); 885 if (Method == ~0U) 886 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 887 else 888 Opts.ObjCDispatchMethod = Method; 889 } 890 } 891 892 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 893 ArgList &Args) { 894 using namespace cc1options; 895 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 896 Opts.Targets = Args.getAllArgValues(OPT_MT); 897 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 898 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 899 } 900 901 static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 902 Diagnostic &Diags) { 903 using namespace cc1options; 904 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 905 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 906 Opts.Pedantic = Args.hasArg(OPT_pedantic); 907 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 908 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 909 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 910 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 911 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 912 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 913 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 914 915 llvm::StringRef ShowOverloads = 916 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 917 if (ShowOverloads == "best") 918 Opts.ShowOverloads = Diagnostic::Ovl_Best; 919 else if (ShowOverloads == "all") 920 Opts.ShowOverloads = Diagnostic::Ovl_All; 921 else 922 Diags.Report(diag::err_drv_invalid_value) 923 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 924 << ShowOverloads; 925 926 llvm::StringRef ShowCategory = 927 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 928 if (ShowCategory == "none") 929 Opts.ShowCategories = 0; 930 else if (ShowCategory == "id") 931 Opts.ShowCategories = 1; 932 else if (ShowCategory == "name") 933 Opts.ShowCategories = 2; 934 else 935 Diags.Report(diag::err_drv_invalid_value) 936 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 937 << ShowCategory; 938 939 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 940 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 941 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 942 Opts.BinaryOutput = Args.hasArg(OPT_fdiagnostics_binary); 943 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 944 Opts.MacroBacktraceLimit 945 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 946 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 947 Opts.TemplateBacktraceLimit 948 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 949 DiagnosticOptions::DefaultTemplateBacktraceLimit, 950 Diags); 951 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 952 DiagnosticOptions::DefaultTabStop, Diags); 953 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 954 Diags.Report(diag::warn_ignoring_ftabstop_value) 955 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 956 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 957 } 958 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 959 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 960 Opts.Warnings = Args.getAllArgValues(OPT_W); 961 } 962 963 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 964 Diagnostic &Diags) { 965 using namespace cc1options; 966 Opts.ProgramAction = frontend::ParseSyntaxOnly; 967 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 968 switch (A->getOption().getID()) { 969 default: 970 assert(0 && "Invalid option in group!"); 971 case OPT_ast_dump: 972 Opts.ProgramAction = frontend::ASTDump; break; 973 case OPT_ast_print: 974 Opts.ProgramAction = frontend::ASTPrint; break; 975 case OPT_ast_print_xml: 976 Opts.ProgramAction = frontend::ASTPrintXML; break; 977 case OPT_ast_view: 978 Opts.ProgramAction = frontend::ASTView; break; 979 case OPT_boostcon: 980 Opts.ProgramAction = frontend::BoostCon; break; 981 case OPT_dump_raw_tokens: 982 Opts.ProgramAction = frontend::DumpRawTokens; break; 983 case OPT_dump_tokens: 984 Opts.ProgramAction = frontend::DumpTokens; break; 985 case OPT_S: 986 Opts.ProgramAction = frontend::EmitAssembly; break; 987 case OPT_emit_llvm_bc: 988 Opts.ProgramAction = frontend::EmitBC; break; 989 case OPT_emit_html: 990 Opts.ProgramAction = frontend::EmitHTML; break; 991 case OPT_emit_llvm: 992 Opts.ProgramAction = frontend::EmitLLVM; break; 993 case OPT_emit_llvm_only: 994 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 995 case OPT_emit_codegen_only: 996 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 997 case OPT_emit_obj: 998 Opts.ProgramAction = frontend::EmitObj; break; 999 case OPT_fixit_EQ: 1000 Opts.FixItSuffix = A->getValue(Args); 1001 // fall-through! 1002 case OPT_fixit: 1003 Opts.ProgramAction = frontend::FixIt; break; 1004 case OPT_emit_pch: 1005 Opts.ProgramAction = frontend::GeneratePCH; break; 1006 case OPT_emit_pth: 1007 Opts.ProgramAction = frontend::GeneratePTH; break; 1008 case OPT_init_only: 1009 Opts.ProgramAction = frontend::InitOnly; break; 1010 case OPT_fsyntax_only: 1011 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1012 case OPT_print_decl_contexts: 1013 Opts.ProgramAction = frontend::PrintDeclContext; break; 1014 case OPT_print_preamble: 1015 Opts.ProgramAction = frontend::PrintPreamble; break; 1016 case OPT_E: 1017 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1018 case OPT_rewrite_macros: 1019 Opts.ProgramAction = frontend::RewriteMacros; break; 1020 case OPT_rewrite_objc: 1021 Opts.ProgramAction = frontend::RewriteObjC; break; 1022 case OPT_rewrite_test: 1023 Opts.ProgramAction = frontend::RewriteTest; break; 1024 case OPT_analyze: 1025 Opts.ProgramAction = frontend::RunAnalysis; break; 1026 case OPT_Eonly: 1027 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1028 case OPT_create_module: 1029 Opts.ProgramAction = frontend::CreateModule; break; 1030 } 1031 } 1032 1033 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1034 Opts.Plugins.push_back(A->getValue(Args,0)); 1035 Opts.ProgramAction = frontend::PluginAction; 1036 Opts.ActionName = A->getValue(Args); 1037 1038 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1039 end = Args.filtered_end(); it != end; ++it) { 1040 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1041 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1042 } 1043 } 1044 1045 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1046 Opts.CodeCompletionAt = 1047 ParsedSourceLocation::FromString(A->getValue(Args)); 1048 if (Opts.CodeCompletionAt.FileName.empty()) 1049 Diags.Report(diag::err_drv_invalid_value) 1050 << A->getAsString(Args) << A->getValue(Args); 1051 } 1052 Opts.DebugCodeCompletionPrinter = 1053 !Args.hasArg(OPT_no_code_completion_debug_printer); 1054 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1055 1056 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1057 Opts.Plugins = Args.getAllArgValues(OPT_load); 1058 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1059 Opts.ChainedPCH = Args.hasArg(OPT_chained_pch); 1060 Opts.ShowHelp = Args.hasArg(OPT_help); 1061 Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros); 1062 Opts.ShowCodePatternsInCodeCompletion 1063 = Args.hasArg(OPT_code_completion_patterns); 1064 Opts.ShowGlobalSymbolsInCodeCompletion 1065 = !Args.hasArg(OPT_no_code_completion_globals); 1066 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1067 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1068 Opts.ShowVersion = Args.hasArg(OPT_version); 1069 Opts.ViewClassInheritance = Args.getLastArgValue(OPT_cxx_inheritance_view); 1070 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1071 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1072 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1073 Opts.Modules = Args.getAllArgValues(OPT_import_module); 1074 1075 InputKind DashX = IK_None; 1076 if (const Arg *A = Args.getLastArg(OPT_x)) { 1077 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1078 .Case("c", IK_C) 1079 .Case("cl", IK_OpenCL) 1080 .Case("c", IK_C) 1081 .Case("cl", IK_OpenCL) 1082 .Case("c++", IK_CXX) 1083 .Case("objective-c", IK_ObjC) 1084 .Case("objective-c++", IK_ObjCXX) 1085 .Case("cpp-output", IK_PreprocessedC) 1086 .Case("assembler-with-cpp", IK_Asm) 1087 .Case("c++-cpp-output", IK_PreprocessedCXX) 1088 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1089 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1090 .Case("c-header", IK_C) 1091 .Case("objective-c-header", IK_ObjC) 1092 .Case("c++-header", IK_CXX) 1093 .Case("objective-c++-header", IK_ObjCXX) 1094 .Case("ast", IK_AST) 1095 .Case("ir", IK_LLVM_IR) 1096 .Default(IK_None); 1097 if (DashX == IK_None) 1098 Diags.Report(diag::err_drv_invalid_value) 1099 << A->getAsString(Args) << A->getValue(Args); 1100 } 1101 1102 // '-' is the default input if none is given. 1103 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1104 Opts.Inputs.clear(); 1105 if (Inputs.empty()) 1106 Inputs.push_back("-"); 1107 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1108 InputKind IK = DashX; 1109 if (IK == IK_None) { 1110 IK = FrontendOptions::getInputKindForExtension( 1111 llvm::StringRef(Inputs[i]).rsplit('.').second); 1112 // FIXME: Remove this hack. 1113 if (i == 0) 1114 DashX = IK; 1115 } 1116 Opts.Inputs.push_back(std::make_pair(IK, Inputs[i])); 1117 } 1118 1119 return DashX; 1120 } 1121 1122 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1123 void *MainAddr) { 1124 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1125 1126 if (!P.isEmpty()) { 1127 P.eraseComponent(); // Remove /clang from foo/bin/clang 1128 P.eraseComponent(); // Remove /bin from foo/bin 1129 1130 // Get foo/lib/clang/<version>/include 1131 P.appendComponent("lib"); 1132 P.appendComponent("clang"); 1133 P.appendComponent(CLANG_VERSION_STRING); 1134 } 1135 1136 return P.str(); 1137 } 1138 1139 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1140 using namespace cc1options; 1141 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1142 Opts.Verbose = Args.hasArg(OPT_v); 1143 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1144 Opts.UseStandardIncludes = !Args.hasArg(OPT_nostdinc); 1145 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1146 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1147 1148 // Add -I... and -F... options in order. 1149 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F), 1150 ie = Args.filtered_end(); it != ie; ++it) 1151 Opts.AddPath((*it)->getValue(Args), frontend::Angled, true, 1152 /*IsFramework=*/ (*it)->getOption().matches(OPT_F)); 1153 1154 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1155 llvm::StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1156 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1157 OPT_iwithprefixbefore), 1158 ie = Args.filtered_end(); it != ie; ++it) { 1159 const Arg *A = *it; 1160 if (A->getOption().matches(OPT_iprefix)) 1161 Prefix = A->getValue(Args); 1162 else if (A->getOption().matches(OPT_iwithprefix)) 1163 Opts.AddPath(Prefix.str() + A->getValue(Args), 1164 frontend::System, false, false); 1165 else 1166 Opts.AddPath(Prefix.str() + A->getValue(Args), 1167 frontend::Angled, false, false); 1168 } 1169 1170 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1171 ie = Args.filtered_end(); it != ie; ++it) 1172 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false); 1173 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1174 ie = Args.filtered_end(); it != ie; ++it) 1175 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false); 1176 for (arg_iterator it = Args.filtered_begin(OPT_isystem), 1177 ie = Args.filtered_end(); it != ie; ++it) 1178 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false); 1179 1180 // FIXME: Need options for the various environment variables! 1181 } 1182 1183 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1184 Diagnostic &Diags) { 1185 // FIXME: Cleanup per-file based stuff. 1186 1187 // Set some properties which depend soley on the input kind; it would be nice 1188 // to move these to the language standard, and have the driver resolve the 1189 // input kind + language standard. 1190 if (IK == IK_Asm) { 1191 Opts.AsmPreprocessor = 1; 1192 } else if (IK == IK_ObjC || 1193 IK == IK_ObjCXX || 1194 IK == IK_PreprocessedObjC || 1195 IK == IK_PreprocessedObjCXX) { 1196 Opts.ObjC1 = Opts.ObjC2 = 1; 1197 } 1198 1199 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1200 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1201 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1202 #define LANGSTANDARD(id, name, desc, features) \ 1203 .Case(name, LangStandard::lang_##id) 1204 #include "clang/Frontend/LangStandards.def" 1205 .Default(LangStandard::lang_unspecified); 1206 if (LangStd == LangStandard::lang_unspecified) 1207 Diags.Report(diag::err_drv_invalid_value) 1208 << A->getAsString(Args) << A->getValue(Args); 1209 } 1210 1211 if (LangStd == LangStandard::lang_unspecified) { 1212 // Based on the base language, pick one. 1213 switch (IK) { 1214 case IK_None: 1215 case IK_AST: 1216 case IK_LLVM_IR: 1217 assert(0 && "Invalid input kind!"); 1218 case IK_OpenCL: 1219 LangStd = LangStandard::lang_opencl; 1220 break; 1221 case IK_Asm: 1222 case IK_C: 1223 case IK_PreprocessedC: 1224 case IK_ObjC: 1225 case IK_PreprocessedObjC: 1226 LangStd = LangStandard::lang_gnu99; 1227 break; 1228 case IK_CXX: 1229 case IK_PreprocessedCXX: 1230 case IK_ObjCXX: 1231 case IK_PreprocessedObjCXX: 1232 LangStd = LangStandard::lang_gnucxx98; 1233 break; 1234 } 1235 } 1236 1237 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1238 Opts.BCPLComment = Std.hasBCPLComments(); 1239 Opts.C99 = Std.isC99(); 1240 Opts.CPlusPlus = Std.isCPlusPlus(); 1241 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1242 Opts.Digraphs = Std.hasDigraphs(); 1243 Opts.GNUMode = Std.isGNUMode(); 1244 Opts.GNUInline = !Std.isC99(); 1245 Opts.HexFloats = Std.hasHexFloats(); 1246 Opts.ImplicitInt = Std.hasImplicitInt(); 1247 1248 // OpenCL has some additional defaults. 1249 if (LangStd == LangStandard::lang_opencl) { 1250 Opts.OpenCL = 1; 1251 Opts.AltiVec = 1; 1252 Opts.CXXOperatorNames = 1; 1253 Opts.LaxVectorConversions = 1; 1254 } 1255 1256 // OpenCL and C++ both have bool, true, false keywords. 1257 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1258 1259 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1260 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1261 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1262 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1263 // name, as it doesn't seem a useful distinction. 1264 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1265 Opts.GNUMode); 1266 1267 if (Opts.CPlusPlus) 1268 Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names); 1269 1270 if (Args.hasArg(OPT_fobjc_gc_only)) 1271 Opts.setGCMode(LangOptions::GCOnly); 1272 else if (Args.hasArg(OPT_fobjc_gc)) 1273 Opts.setGCMode(LangOptions::HybridGC); 1274 1275 if (Args.hasArg(OPT_print_ivar_layout)) 1276 Opts.ObjCGCBitmapPrint = 1; 1277 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1278 Opts.NoConstantCFStrings = 1; 1279 1280 if (Args.hasArg(OPT_faltivec)) 1281 Opts.AltiVec = 1; 1282 1283 if (Args.hasArg(OPT_pthread)) 1284 Opts.POSIXThreads = 1; 1285 1286 llvm::StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1287 if (Vis == "default") 1288 Opts.setVisibilityMode(LangOptions::Default); 1289 else if (Vis == "hidden") 1290 Opts.setVisibilityMode(LangOptions::Hidden); 1291 else if (Vis == "protected") 1292 Opts.setVisibilityMode(LangOptions::Protected); 1293 else 1294 Diags.Report(diag::err_drv_invalid_value) 1295 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1296 1297 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1298 Opts.InlineVisibilityHidden = 1; 1299 1300 if (Args.hasArg(OPT_ftrapv)) 1301 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1302 else if (Args.hasArg(OPT_fwrapv)) 1303 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1304 1305 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1306 // is specified, or -std is set to a conforming mode. 1307 Opts.Trigraphs = !Opts.GNUMode; 1308 if (Args.hasArg(OPT_trigraphs)) 1309 Opts.Trigraphs = 1; 1310 1311 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1312 OPT_fno_dollars_in_identifiers, 1313 !Opts.AsmPreprocessor); 1314 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1315 Opts.Microsoft = Args.hasArg(OPT_fms_extensions); 1316 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1317 Opts.ConstStrings = Args.hasArg(OPT_Wwrite_strings); 1318 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1319 Opts.LaxVectorConversions = 0; 1320 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1321 Opts.ThreadsafeStatics = 0; 1322 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1323 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1324 Opts.Blocks = Args.hasArg(OPT_fblocks); 1325 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 1326 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 1327 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1328 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1329 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1330 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1331 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1332 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1333 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 1334 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024, 1335 Diags); 1336 Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime); 1337 Opts.ObjCConstantStringClass = 1338 Args.getLastArgValue(OPT_fconstant_string_class); 1339 Opts.ObjCNonFragileABI = Args.hasArg(OPT_fobjc_nonfragile_abi); 1340 Opts.ObjCNonFragileABI2 = Args.hasArg(OPT_fobjc_nonfragile_abi2); 1341 if (Opts.ObjCNonFragileABI2) 1342 Opts.ObjCNonFragileABI = true; 1343 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 1344 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1345 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 1346 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1347 Opts.Static = Args.hasArg(OPT_static_define); 1348 Opts.DumpRecordLayouts = Args.hasArg(OPT_fdump_record_layouts); 1349 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1350 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1351 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1352 Opts.OptimizeSize = 0; 1353 1354 // FIXME: Eliminate this dependency. 1355 unsigned Opt = 1356 Args.hasArg(OPT_Os) ? 2 : Args.getLastArgIntValue(OPT_O, 0, Diags); 1357 Opts.Optimize = Opt != 0; 1358 1359 // This is the __NO_INLINE__ define, which just depends on things like the 1360 // optimization level and -fno-inline, not actually whether the backend has 1361 // inlining enabled. 1362 // 1363 // FIXME: This is affected by other options (-fno-inline). 1364 Opts.NoInline = !Opt; 1365 1366 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 1367 switch (SSP) { 1368 default: 1369 Diags.Report(diag::err_drv_invalid_value) 1370 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1371 break; 1372 case 0: Opts.setStackProtectorMode(LangOptions::SSPOff); break; 1373 case 1: Opts.setStackProtectorMode(LangOptions::SSPOn); break; 1374 case 2: Opts.setStackProtectorMode(LangOptions::SSPReq); break; 1375 } 1376 } 1377 1378 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1379 Diagnostic &Diags) { 1380 using namespace cc1options; 1381 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1382 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1383 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1384 Opts.TokenCache = A->getValue(Args); 1385 else 1386 Opts.TokenCache = Opts.ImplicitPTHInclude; 1387 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1388 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1389 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1390 1391 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1392 llvm::StringRef Value(A->getValue(Args)); 1393 size_t Comma = Value.find(','); 1394 unsigned Bytes = 0; 1395 unsigned EndOfLine = 0; 1396 1397 if (Comma == llvm::StringRef::npos || 1398 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1399 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1400 Diags.Report(diag::err_drv_preamble_format); 1401 else { 1402 Opts.PrecompiledPreambleBytes.first = Bytes; 1403 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1404 } 1405 } 1406 1407 // Add macros from the command line. 1408 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1409 ie = Args.filtered_end(); it != ie; ++it) { 1410 if ((*it)->getOption().matches(OPT_D)) 1411 Opts.addMacroDef((*it)->getValue(Args)); 1412 else 1413 Opts.addMacroUndef((*it)->getValue(Args)); 1414 } 1415 1416 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1417 1418 // Add the ordered list of -includes. 1419 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 1420 OPT_include_pth), 1421 ie = Args.filtered_end(); it != ie; ++it) { 1422 const Arg *A = *it; 1423 // PCH is handled specially, we need to extra the original include path. 1424 if (A->getOption().matches(OPT_include_pch)) { 1425 std::string OriginalFile = 1426 ASTReader::getOriginalSourceFile(A->getValue(Args), Diags); 1427 if (OriginalFile.empty()) 1428 continue; 1429 1430 Opts.Includes.push_back(OriginalFile); 1431 } else 1432 Opts.Includes.push_back(A->getValue(Args)); 1433 } 1434 1435 // Include 'altivec.h' if -faltivec option present 1436 if (Args.hasArg(OPT_faltivec)) 1437 Opts.Includes.push_back("altivec.h"); 1438 1439 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1440 ie = Args.filtered_end(); it != ie; ++it) { 1441 const Arg *A = *it; 1442 std::pair<llvm::StringRef,llvm::StringRef> Split = 1443 llvm::StringRef(A->getValue(Args)).split(';'); 1444 1445 if (Split.second.empty()) { 1446 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1447 continue; 1448 } 1449 1450 Opts.addRemappedFile(Split.first, Split.second); 1451 } 1452 } 1453 1454 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1455 ArgList &Args) { 1456 using namespace cc1options; 1457 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1458 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1459 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1460 Opts.ShowComments = Args.hasArg(OPT_C); 1461 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1462 } 1463 1464 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1465 using namespace cc1options; 1466 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1467 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 1468 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1469 Opts.Features = Args.getAllArgValues(OPT_target_feature); 1470 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1471 Opts.Triple = Args.getLastArgValue(OPT_triple); 1472 1473 // Use the host triple if unspecified. 1474 if (Opts.Triple.empty()) 1475 Opts.Triple = llvm::sys::getHostTriple(); 1476 } 1477 1478 // 1479 1480 void CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1481 const char **ArgBegin, 1482 const char **ArgEnd, 1483 Diagnostic &Diags) { 1484 // Parse the arguments. 1485 llvm::OwningPtr<OptTable> Opts(createCC1OptTable()); 1486 unsigned MissingArgIndex, MissingArgCount; 1487 llvm::OwningPtr<InputArgList> Args( 1488 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 1489 1490 // Check for missing argument error. 1491 if (MissingArgCount) 1492 Diags.Report(diag::err_drv_missing_argument) 1493 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1494 1495 // Issue errors on unknown arguments. 1496 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1497 ie = Args->filtered_end(); it != ie; ++it) 1498 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1499 1500 ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags); 1501 ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, Diags); 1502 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1503 ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, Diags); 1504 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1505 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1506 if (DashX != IK_AST && DashX != IK_LLVM_IR) 1507 ParseLangArgs(Res.getLangOpts(), *Args, DashX, Diags); 1508 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, Diags); 1509 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 1510 ParseTargetArgs(Res.getTargetOpts(), *Args); 1511 } 1512