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/Basic/FileManager.h" 14 #include "clang/Driver/Arg.h" 15 #include "clang/Driver/ArgList.h" 16 #include "clang/Driver/CC1Options.h" 17 #include "clang/Driver/DriverDiagnostic.h" 18 #include "clang/Driver/OptTable.h" 19 #include "clang/Driver/Option.h" 20 #include "clang/Frontend/CompilerInvocation.h" 21 #include "clang/Frontend/LangStandard.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "llvm/ADT/OwningPtr.h" 24 #include "llvm/ADT/SmallVector.h" 25 #include "llvm/ADT/StringExtras.h" 26 #include "llvm/ADT/StringSwitch.h" 27 #include "llvm/ADT/Triple.h" 28 #include "llvm/Support/ErrorHandling.h" 29 #include "llvm/Support/Host.h" 30 #include "llvm/Support/Path.h" 31 using namespace clang; 32 33 static const char *getAnalysisStoreName(AnalysisStores Kind) { 34 switch (Kind) { 35 default: 36 llvm_unreachable("Unknown analysis store!"); 37 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 38 case NAME##Model: return CMDFLAG; 39 #include "clang/Frontend/Analyses.def" 40 } 41 } 42 43 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) { 44 switch (Kind) { 45 default: 46 llvm_unreachable("Unknown analysis constraints!"); 47 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 48 case NAME##Model: return CMDFLAG; 49 #include "clang/Frontend/Analyses.def" 50 } 51 } 52 53 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) { 54 switch (Kind) { 55 default: 56 llvm_unreachable("Unknown analysis client!"); 57 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \ 58 case PD_##NAME: return CMDFLAG; 59 #include "clang/Frontend/Analyses.def" 60 } 61 } 62 63 static const char *getAnalysisPurgeModeName(AnalysisPurgeMode Kind) { 64 switch (Kind) { 65 default: 66 llvm_unreachable("Unknown analysis client!"); 67 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 68 case NAME: return CMDFLAG; 69 #include "clang/Frontend/Analyses.def" 70 } 71 } 72 73 //===----------------------------------------------------------------------===// 74 // Serialization (to args) 75 //===----------------------------------------------------------------------===// 76 77 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, 78 std::vector<std::string> &Res) { 79 if (Opts.ShowCheckerHelp) 80 Res.push_back("-analyzer-checker-help"); 81 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 82 Res.push_back("-analyzer-store"); 83 Res.push_back(getAnalysisStoreName(Opts.AnalysisStoreOpt)); 84 } 85 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 86 Res.push_back("-analyzer-constraints"); 87 Res.push_back(getAnalysisConstraintName(Opts.AnalysisConstraintsOpt)); 88 } 89 if (Opts.AnalysisDiagOpt != PD_HTML) { 90 Res.push_back("-analyzer-output"); 91 Res.push_back(getAnalysisDiagClientName(Opts.AnalysisDiagOpt)); 92 } 93 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 94 Res.push_back("-analyzer-purge"); 95 Res.push_back(getAnalysisPurgeModeName(Opts.AnalysisPurgeOpt)); 96 } 97 if (!Opts.AnalyzeSpecificFunction.empty()) { 98 Res.push_back("-analyze-function"); 99 Res.push_back(Opts.AnalyzeSpecificFunction); 100 } 101 if (Opts.AnalyzeAll) 102 Res.push_back("-analyzer-opt-analyze-headers"); 103 if (Opts.AnalyzerDisplayProgress) 104 Res.push_back("-analyzer-display-progress"); 105 if (Opts.AnalyzeNestedBlocks) 106 Res.push_back("-analyzer-opt-analyze-nested-blocks"); 107 if (Opts.EagerlyAssume) 108 Res.push_back("-analyzer-eagerly-assume"); 109 if (Opts.TrimGraph) 110 Res.push_back("-trim-egraph"); 111 if (Opts.VisualizeEGDot) 112 Res.push_back("-analyzer-viz-egraph-graphviz"); 113 if (Opts.VisualizeEGUbi) 114 Res.push_back("-analyzer-viz-egraph-ubigraph"); 115 116 for (unsigned i = 0, e = Opts.CheckersControlList.size(); i != e; ++i) { 117 const std::pair<std::string, bool> &opt = Opts.CheckersControlList[i]; 118 if (opt.second) 119 Res.push_back("-analyzer-disable-checker"); 120 else 121 Res.push_back("-analyzer-checker"); 122 Res.push_back(opt.first); 123 } 124 } 125 126 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, 127 std::vector<std::string> &Res) { 128 if (Opts.DebugInfo) 129 Res.push_back("-g"); 130 if (Opts.DisableLLVMOpts) 131 Res.push_back("-disable-llvm-optzns"); 132 if (Opts.DisableRedZone) 133 Res.push_back("-disable-red-zone"); 134 if (!Opts.DwarfDebugFlags.empty()) { 135 Res.push_back("-dwarf-debug-flags"); 136 Res.push_back(Opts.DwarfDebugFlags); 137 } 138 if (Opts.ObjCRuntimeHasARC) 139 Res.push_back("-fobjc-runtime-has-arc"); 140 if (Opts.ObjCRuntimeHasTerminate) 141 Res.push_back("-fobjc-runtime-has-terminate"); 142 if (Opts.EmitGcovArcs) 143 Res.push_back("-femit-coverage-data"); 144 if (Opts.EmitGcovNotes) 145 Res.push_back("-femit-coverage-notes"); 146 if (!Opts.MergeAllConstants) 147 Res.push_back("-fno-merge-all-constants"); 148 if (Opts.NoCommon) 149 Res.push_back("-fno-common"); 150 if (Opts.ForbidGuardVariables) 151 Res.push_back("-fforbid-guard-variables"); 152 if (Opts.UseRegisterSizedBitfieldAccess) 153 Res.push_back("-fuse-register-sized-bitfield-access"); 154 if (Opts.NoImplicitFloat) 155 Res.push_back("-no-implicit-float"); 156 if (Opts.OmitLeafFramePointer) 157 Res.push_back("-momit-leaf-frame-pointer"); 158 if (Opts.OptimizeSize) { 159 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 160 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz"); 161 } else if (Opts.OptimizationLevel != 0) 162 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 163 if (!Opts.MainFileName.empty()) { 164 Res.push_back("-main-file-name"); 165 Res.push_back(Opts.MainFileName); 166 } 167 // SimplifyLibCalls is only derived. 168 // TimePasses is only derived. 169 // UnitAtATime is unused. 170 // Inlining is only derived. 171 172 // UnrollLoops is derived, but also accepts an option, no 173 // harm in pushing it back here. 174 if (Opts.UnrollLoops) 175 Res.push_back("-funroll-loops"); 176 if (Opts.DataSections) 177 Res.push_back("-fdata-sections"); 178 if (Opts.FunctionSections) 179 Res.push_back("-ffunction-sections"); 180 if (Opts.AsmVerbose) 181 Res.push_back("-masm-verbose"); 182 if (!Opts.CodeModel.empty()) { 183 Res.push_back("-mcode-model"); 184 Res.push_back(Opts.CodeModel); 185 } 186 if (Opts.CUDAIsDevice) 187 Res.push_back("-fcuda-is-device"); 188 if (!Opts.CXAAtExit) 189 Res.push_back("-fno-use-cxa-atexit"); 190 if (Opts.CXXCtorDtorAliases) 191 Res.push_back("-mconstructor-aliases"); 192 if (Opts.ObjCAutoRefCountExceptions) 193 Res.push_back("-fobjc-arc-eh"); 194 if (!Opts.DebugPass.empty()) { 195 Res.push_back("-mdebug-pass"); 196 Res.push_back(Opts.DebugPass); 197 } 198 if (Opts.DisableFPElim) 199 Res.push_back("-mdisable-fp-elim"); 200 if (!Opts.FloatABI.empty()) { 201 Res.push_back("-mfloat-abi"); 202 Res.push_back(Opts.FloatABI); 203 } 204 if (!Opts.LimitFloatPrecision.empty()) { 205 Res.push_back("-mlimit-float-precision"); 206 Res.push_back(Opts.LimitFloatPrecision); 207 } 208 if (Opts.NoZeroInitializedInBSS) 209 Res.push_back("-mno-zero-initialized-bss"); 210 switch (Opts.getObjCDispatchMethod()) { 211 case CodeGenOptions::Legacy: 212 break; 213 case CodeGenOptions::Mixed: 214 Res.push_back("-fobjc-dispatch-method=mixed"); 215 break; 216 case CodeGenOptions::NonLegacy: 217 Res.push_back("-fobjc-dispatch-method=non-legacy"); 218 break; 219 } 220 if (Opts.NumRegisterParameters) { 221 Res.push_back("-mregparm"); 222 Res.push_back(llvm::utostr(Opts.NumRegisterParameters)); 223 } 224 if (Opts.NoGlobalMerge) 225 Res.push_back("-mno-global-merge"); 226 if (Opts.NoExecStack) 227 Res.push_back("-mnoexecstack"); 228 if (Opts.RelaxAll) 229 Res.push_back("-mrelax-all"); 230 if (Opts.SaveTempLabels) 231 Res.push_back("-msave-temp-labels"); 232 if (Opts.NoDwarf2CFIAsm) 233 Res.push_back("-fno-dwarf2-cfi-asm"); 234 if (Opts.SoftFloat) 235 Res.push_back("-msoft-float"); 236 if (Opts.UnwindTables) 237 Res.push_back("-munwind-tables"); 238 if (Opts.RelocationModel != "pic") { 239 Res.push_back("-mrelocation-model"); 240 Res.push_back(Opts.RelocationModel); 241 } 242 if (!Opts.VerifyModule) 243 Res.push_back("-disable-llvm-verifier"); 244 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) { 245 Res.push_back("-backend-option"); 246 Res.push_back(Opts.BackendOptions[i]); 247 } 248 } 249 250 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 251 std::vector<std::string> &Res) { 252 if (Opts.IncludeSystemHeaders) 253 Res.push_back("-sys-header-deps"); 254 if (Opts.ShowHeaderIncludes) 255 Res.push_back("-H"); 256 if (!Opts.HeaderIncludeOutputFile.empty()) { 257 Res.push_back("-header-include-file"); 258 Res.push_back(Opts.HeaderIncludeOutputFile); 259 } 260 if (Opts.UsePhonyTargets) 261 Res.push_back("-MP"); 262 if (!Opts.OutputFile.empty()) { 263 Res.push_back("-dependency-file"); 264 Res.push_back(Opts.OutputFile); 265 } 266 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) { 267 Res.push_back("-MT"); 268 Res.push_back(Opts.Targets[i]); 269 } 270 } 271 272 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 273 std::vector<std::string> &Res) { 274 if (Opts.IgnoreWarnings) 275 Res.push_back("-w"); 276 if (Opts.NoRewriteMacros) 277 Res.push_back("-Wno-rewrite-macros"); 278 if (Opts.Pedantic) 279 Res.push_back("-pedantic"); 280 if (Opts.PedanticErrors) 281 Res.push_back("-pedantic-errors"); 282 if (!Opts.ShowColumn) 283 Res.push_back("-fno-show-column"); 284 if (!Opts.ShowLocation) 285 Res.push_back("-fno-show-source-location"); 286 if (!Opts.ShowCarets) 287 Res.push_back("-fno-caret-diagnostics"); 288 if (!Opts.ShowFixits) 289 Res.push_back("-fno-diagnostics-fixit-info"); 290 if (Opts.ShowSourceRanges) 291 Res.push_back("-fdiagnostics-print-source-range-info"); 292 if (Opts.ShowParseableFixits) 293 Res.push_back("-fdiagnostics-parseable-fixits"); 294 if (Opts.ShowColors) 295 Res.push_back("-fcolor-diagnostics"); 296 if (Opts.VerifyDiagnostics) 297 Res.push_back("-verify"); 298 if (Opts.ShowNames) 299 Res.push_back("-fdiagnostics-show-name"); 300 if (Opts.ShowOptionNames) 301 Res.push_back("-fdiagnostics-show-option"); 302 if (Opts.ShowCategories == 1) 303 Res.push_back("-fdiagnostics-show-category=id"); 304 else if (Opts.ShowCategories == 2) 305 Res.push_back("-fdiagnostics-show-category=name"); 306 switch (Opts.Format) { 307 case DiagnosticOptions::Clang: 308 Res.push_back("-fdiagnostics-format=clang"); break; 309 case DiagnosticOptions::Msvc: 310 Res.push_back("-fdiagnostics-format=msvc"); break; 311 case DiagnosticOptions::Vi: 312 Res.push_back("-fdiagnostics-format=vi"); break; 313 } 314 if (Opts.ErrorLimit) { 315 Res.push_back("-ferror-limit"); 316 Res.push_back(llvm::utostr(Opts.ErrorLimit)); 317 } 318 if (!Opts.DiagnosticLogFile.empty()) { 319 Res.push_back("-diagnostic-log-file"); 320 Res.push_back(Opts.DiagnosticLogFile); 321 } 322 if (Opts.MacroBacktraceLimit 323 != DiagnosticOptions::DefaultMacroBacktraceLimit) { 324 Res.push_back("-fmacro-backtrace-limit"); 325 Res.push_back(llvm::utostr(Opts.MacroBacktraceLimit)); 326 } 327 if (Opts.TemplateBacktraceLimit 328 != DiagnosticOptions::DefaultTemplateBacktraceLimit) { 329 Res.push_back("-ftemplate-backtrace-limit"); 330 Res.push_back(llvm::utostr(Opts.TemplateBacktraceLimit)); 331 } 332 333 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) { 334 Res.push_back("-ftabstop"); 335 Res.push_back(llvm::utostr(Opts.TabStop)); 336 } 337 if (Opts.MessageLength) { 338 Res.push_back("-fmessage-length"); 339 Res.push_back(llvm::utostr(Opts.MessageLength)); 340 } 341 if (!Opts.DumpBuildInformation.empty()) { 342 Res.push_back("-dump-build-information"); 343 Res.push_back(Opts.DumpBuildInformation); 344 } 345 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 346 Res.push_back("-W" + Opts.Warnings[i]); 347 } 348 349 static const char *getInputKindName(InputKind Kind) { 350 switch (Kind) { 351 case IK_None: break; 352 case IK_AST: return "ast"; 353 case IK_Asm: return "assembler-with-cpp"; 354 case IK_C: return "c"; 355 case IK_CXX: return "c++"; 356 case IK_LLVM_IR: return "ir"; 357 case IK_ObjC: return "objective-c"; 358 case IK_ObjCXX: return "objective-c++"; 359 case IK_OpenCL: return "cl"; 360 case IK_CUDA: return "cuda"; 361 case IK_PreprocessedC: return "cpp-output"; 362 case IK_PreprocessedCXX: return "c++-cpp-output"; 363 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 364 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 365 } 366 367 llvm_unreachable("Unexpected language kind!"); 368 return 0; 369 } 370 371 static const char *getActionName(frontend::ActionKind Kind) { 372 switch (Kind) { 373 case frontend::PluginAction: 374 llvm_unreachable("Invalid kind!"); 375 376 case frontend::ASTDump: return "-ast-dump"; 377 case frontend::ASTDumpXML: return "-ast-dump-xml"; 378 case frontend::ASTPrint: return "-ast-print"; 379 case frontend::ASTView: return "-ast-view"; 380 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 381 case frontend::DumpTokens: return "-dump-tokens"; 382 case frontend::EmitAssembly: return "-S"; 383 case frontend::EmitBC: return "-emit-llvm-bc"; 384 case frontend::EmitHTML: return "-emit-html"; 385 case frontend::EmitLLVM: return "-emit-llvm"; 386 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 387 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 388 case frontend::EmitObj: return "-emit-obj"; 389 case frontend::FixIt: return "-fixit"; 390 case frontend::GenerateModule: return "-emit-module"; 391 case frontend::GeneratePCH: return "-emit-pch"; 392 case frontend::GeneratePTH: return "-emit-pth"; 393 case frontend::InitOnly: return "-init-only"; 394 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 395 case frontend::PrintDeclContext: return "-print-decl-contexts"; 396 case frontend::PrintPreamble: return "-print-preamble"; 397 case frontend::PrintPreprocessedInput: return "-E"; 398 case frontend::RewriteMacros: return "-rewrite-macros"; 399 case frontend::RewriteObjC: return "-rewrite-objc"; 400 case frontend::RewriteTest: return "-rewrite-test"; 401 case frontend::RunAnalysis: return "-analyze"; 402 case frontend::RunPreprocessorOnly: return "-Eonly"; 403 } 404 405 llvm_unreachable("Unexpected language kind!"); 406 return 0; 407 } 408 409 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, 410 std::vector<std::string> &Res) { 411 if (!Opts.WorkingDir.empty()) { 412 Res.push_back("-working-directory"); 413 Res.push_back(Opts.WorkingDir); 414 } 415 } 416 417 static void FrontendOptsToArgs(const FrontendOptions &Opts, 418 std::vector<std::string> &Res) { 419 if (Opts.DisableFree) 420 Res.push_back("-disable-free"); 421 if (Opts.RelocatablePCH) 422 Res.push_back("-relocatable-pch"); 423 if (Opts.ShowHelp) 424 Res.push_back("-help"); 425 if (Opts.ShowMacrosInCodeCompletion) 426 Res.push_back("-code-completion-macros"); 427 if (Opts.ShowCodePatternsInCodeCompletion) 428 Res.push_back("-code-completion-patterns"); 429 if (!Opts.ShowGlobalSymbolsInCodeCompletion) 430 Res.push_back("-no-code-completion-globals"); 431 if (Opts.ShowStats) 432 Res.push_back("-print-stats"); 433 if (Opts.ShowTimers) 434 Res.push_back("-ftime-report"); 435 if (Opts.ShowVersion) 436 Res.push_back("-version"); 437 if (Opts.FixWhatYouCan) 438 Res.push_back("-fix-what-you-can"); 439 switch (Opts.ARCMTAction) { 440 case FrontendOptions::ARCMT_None: 441 break; 442 case FrontendOptions::ARCMT_Check: 443 Res.push_back("-arcmt-check"); 444 break; 445 case FrontendOptions::ARCMT_Modify: 446 Res.push_back("-arcmt-modify"); 447 break; 448 case FrontendOptions::ARCMT_Migrate: 449 Res.push_back("-arcmt-migrate"); 450 break; 451 } 452 if (!Opts.ARCMTMigrateDir.empty()) { 453 Res.push_back("-arcmt-migrate-directory"); 454 Res.push_back(Opts.ARCMTMigrateDir); 455 } 456 if (!Opts.ARCMTMigrateReportOut.empty()) { 457 Res.push_back("-arcmt-migrate-report-output"); 458 Res.push_back(Opts.ARCMTMigrateReportOut); 459 } 460 if (Opts.ARCMTMigrateEmitARCErrors) 461 Res.push_back("-arcmt-migrate-emit-errors"); 462 463 bool NeedLang = false; 464 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 465 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].second) != 466 Opts.Inputs[i].first) 467 NeedLang = true; 468 if (NeedLang) { 469 Res.push_back("-x"); 470 Res.push_back(getInputKindName(Opts.Inputs[0].first)); 471 } 472 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 473 assert((!NeedLang || Opts.Inputs[i].first == Opts.Inputs[0].first) && 474 "Unable to represent this input vector!"); 475 Res.push_back(Opts.Inputs[i].second); 476 } 477 478 if (!Opts.OutputFile.empty()) { 479 Res.push_back("-o"); 480 Res.push_back(Opts.OutputFile); 481 } 482 if (!Opts.CodeCompletionAt.FileName.empty()) { 483 Res.push_back("-code-completion-at"); 484 Res.push_back(Opts.CodeCompletionAt.FileName + ":" + 485 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 486 llvm::utostr(Opts.CodeCompletionAt.Column)); 487 } 488 if (Opts.ProgramAction != frontend::PluginAction) 489 Res.push_back(getActionName(Opts.ProgramAction)); 490 if (!Opts.ActionName.empty()) { 491 Res.push_back("-plugin"); 492 Res.push_back(Opts.ActionName); 493 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) { 494 Res.push_back("-plugin-arg-" + Opts.ActionName); 495 Res.push_back(Opts.PluginArgs[i]); 496 } 497 } 498 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) { 499 Res.push_back("-load"); 500 Res.push_back(Opts.Plugins[i]); 501 } 502 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 503 Res.push_back("-add-plugin"); 504 Res.push_back(Opts.AddPluginActions[i]); 505 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai) { 506 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i]); 507 Res.push_back(Opts.AddPluginArgs[i][ai]); 508 } 509 } 510 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) { 511 Res.push_back("-ast-merge"); 512 Res.push_back(Opts.ASTMergeFiles[i]); 513 } 514 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) { 515 Res.push_back("-mllvm"); 516 Res.push_back(Opts.LLVMArgs[i]); 517 } 518 } 519 520 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 521 std::vector<std::string> &Res) { 522 if (Opts.Sysroot != "/") { 523 Res.push_back("-isysroot"); 524 Res.push_back(Opts.Sysroot); 525 } 526 527 /// User specified include entries. 528 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 529 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 530 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 531 llvm::report_fatal_error("Invalid option set!"); 532 if (E.IsUserSupplied) { 533 switch (E.Group) { 534 case frontend::After: 535 Res.push_back("-idirafter"); 536 break; 537 538 case frontend::Quoted: 539 Res.push_back("-iquote"); 540 break; 541 542 case frontend::System: 543 Res.push_back("-isystem"); 544 break; 545 546 case frontend::IndexHeaderMap: 547 Res.push_back("-index-header-map"); 548 Res.push_back(E.IsFramework? "-F" : "-I"); 549 break; 550 551 case frontend::CSystem: 552 Res.push_back("-c-isystem"); 553 break; 554 555 case frontend::CXXSystem: 556 Res.push_back("-cxx-isystem"); 557 break; 558 559 case frontend::ObjCSystem: 560 Res.push_back("-objc-isystem"); 561 break; 562 563 case frontend::ObjCXXSystem: 564 Res.push_back("-objcxx-isystem"); 565 break; 566 567 case frontend::Angled: 568 Res.push_back(E.IsFramework ? "-F" : "-I"); 569 break; 570 } 571 } else { 572 if (E.Group != frontend::Angled && E.Group != frontend::System) 573 llvm::report_fatal_error("Invalid option set!"); 574 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 575 "-iwithprefix"); 576 } 577 Res.push_back(E.Path); 578 } 579 580 if (!Opts.ResourceDir.empty()) { 581 Res.push_back("-resource-dir"); 582 Res.push_back(Opts.ResourceDir); 583 } 584 if (!Opts.ModuleCachePath.empty()) { 585 Res.push_back("-fmodule-cache-path"); 586 Res.push_back(Opts.ModuleCachePath); 587 } 588 if (!Opts.UseStandardSystemIncludes) 589 Res.push_back("-nostdsysteminc"); 590 if (!Opts.UseStandardCXXIncludes) 591 Res.push_back("-nostdinc++"); 592 if (Opts.UseLibcxx) 593 Res.push_back("-stdlib=libc++"); 594 if (Opts.Verbose) 595 Res.push_back("-v"); 596 } 597 598 static void LangOptsToArgs(const LangOptions &Opts, 599 std::vector<std::string> &Res) { 600 LangOptions DefaultLangOpts; 601 602 // FIXME: Need to set -std to get all the implicit options. 603 604 // FIXME: We want to only pass options relative to the defaults, which 605 // requires constructing a target. :( 606 // 607 // It would be better to push the all target specific choices into the driver, 608 // so that everything below that was more uniform. 609 610 if (Opts.Trigraphs) 611 Res.push_back("-trigraphs"); 612 // Implicit based on the input kind: 613 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 614 // Implicit based on the input language standard: 615 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 616 if (Opts.DollarIdents) 617 Res.push_back("-fdollars-in-identifiers"); 618 if (Opts.GNUMode && !Opts.GNUKeywords) 619 Res.push_back("-fno-gnu-keywords"); 620 if (!Opts.GNUMode && Opts.GNUKeywords) 621 Res.push_back("-fgnu-keywords"); 622 if (Opts.MicrosoftExt) 623 Res.push_back("-fms-extensions"); 624 if (Opts.MSCVersion != 0) 625 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion)); 626 if (Opts.Borland) 627 Res.push_back("-fborland-extensions"); 628 if (!Opts.ObjCNonFragileABI) 629 Res.push_back("-fobjc-fragile-abi"); 630 if (Opts.ObjCDefaultSynthProperties) 631 Res.push_back("-fobjc-default-synthesize-properties"); 632 // NoInline is implicit. 633 if (!Opts.CXXOperatorNames) 634 Res.push_back("-fno-operator-names"); 635 if (Opts.PascalStrings) 636 Res.push_back("-fpascal-strings"); 637 if (Opts.CatchUndefined) 638 Res.push_back("-fcatch-undefined-behavior"); 639 if (Opts.WritableStrings) 640 Res.push_back("-fwritable-strings"); 641 if (Opts.ConstStrings) 642 Res.push_back("-fconst-strings"); 643 if (!Opts.LaxVectorConversions) 644 Res.push_back("-fno-lax-vector-conversions"); 645 if (Opts.AltiVec) 646 Res.push_back("-faltivec"); 647 if (Opts.Exceptions) 648 Res.push_back("-fexceptions"); 649 if (Opts.ObjCExceptions) 650 Res.push_back("-fobjc-exceptions"); 651 if (Opts.CXXExceptions) 652 Res.push_back("-fcxx-exceptions"); 653 if (Opts.SjLjExceptions) 654 Res.push_back("-fsjlj-exceptions"); 655 if (Opts.TraditionalCPP) 656 Res.push_back("-traditional-cpp"); 657 if (!Opts.RTTI) 658 Res.push_back("-fno-rtti"); 659 if (Opts.MSBitfields) 660 Res.push_back("-mms-bitfields"); 661 if (!Opts.NeXTRuntime) 662 Res.push_back("-fgnu-runtime"); 663 if (Opts.Freestanding) 664 Res.push_back("-ffreestanding"); 665 if (Opts.NoBuiltin) 666 Res.push_back("-fno-builtin"); 667 if (!Opts.AssumeSaneOperatorNew) 668 Res.push_back("-fno-assume-sane-operator-new"); 669 if (!Opts.ThreadsafeStatics) 670 Res.push_back("-fno-threadsafe-statics"); 671 if (Opts.POSIXThreads) 672 Res.push_back("-pthread"); 673 if (Opts.Blocks) 674 Res.push_back("-fblocks"); 675 if (Opts.BlocksRuntimeOptional) 676 Res.push_back("-fblocks-runtime-optional"); 677 if (Opts.EmitAllDecls) 678 Res.push_back("-femit-all-decls"); 679 if (Opts.MathErrno) 680 Res.push_back("-fmath-errno"); 681 switch (Opts.getSignedOverflowBehavior()) { 682 case LangOptions::SOB_Undefined: break; 683 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 684 case LangOptions::SOB_Trapping: 685 Res.push_back("-ftrapv"); break; 686 if (!Opts.OverflowHandler.empty()) { 687 Res.push_back("-ftrapv-handler"); 688 Res.push_back(Opts.OverflowHandler); 689 } 690 } 691 if (Opts.HeinousExtensions) 692 Res.push_back("-fheinous-gnu-extensions"); 693 // Optimize is implicit. 694 // OptimizeSize is implicit. 695 if (Opts.Static) 696 Res.push_back("-static-define"); 697 if (Opts.DumpRecordLayouts) 698 Res.push_back("-fdump-record-layouts"); 699 if (Opts.DumpVTableLayouts) 700 Res.push_back("-fdump-vtable-layouts"); 701 if (Opts.NoBitFieldTypeAlign) 702 Res.push_back("-fno-bitfield-type-alignment"); 703 if (Opts.PICLevel) { 704 Res.push_back("-pic-level"); 705 Res.push_back(llvm::utostr(Opts.PICLevel)); 706 } 707 if (Opts.ObjCGCBitmapPrint) 708 Res.push_back("-print-ivar-layout"); 709 if (Opts.NoConstantCFStrings) 710 Res.push_back("-fno-constant-cfstrings"); 711 if (!Opts.AccessControl) 712 Res.push_back("-fno-access-control"); 713 if (!Opts.CharIsSigned) 714 Res.push_back("-fno-signed-char"); 715 if (Opts.ShortWChar) 716 Res.push_back("-fshort-wchar"); 717 if (!Opts.ElideConstructors) 718 Res.push_back("-fno-elide-constructors"); 719 if (Opts.getGC() != LangOptions::NonGC) { 720 if (Opts.getGC() == LangOptions::HybridGC) { 721 Res.push_back("-fobjc-gc"); 722 } else { 723 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!"); 724 Res.push_back("-fobjc-gc-only"); 725 } 726 } 727 if (Opts.ObjCAutoRefCount) 728 Res.push_back("-fobjc-arc"); 729 if (Opts.ObjCRuntimeHasWeak) 730 Res.push_back("-fobjc-runtime-has-weak"); 731 if (!Opts.ObjCInferRelatedResultType) 732 Res.push_back("-fno-objc-infer-related-result-type"); 733 734 if (Opts.AppleKext) 735 Res.push_back("-fapple-kext"); 736 737 if (Opts.getVisibilityMode() != DefaultVisibility) { 738 Res.push_back("-fvisibility"); 739 if (Opts.getVisibilityMode() == HiddenVisibility) { 740 Res.push_back("hidden"); 741 } else { 742 assert(Opts.getVisibilityMode() == ProtectedVisibility && 743 "Invalid visibility!"); 744 Res.push_back("protected"); 745 } 746 } 747 if (Opts.InlineVisibilityHidden) 748 Res.push_back("-fvisibility-inlines-hidden"); 749 750 if (Opts.getStackProtector() != 0) { 751 Res.push_back("-stack-protector"); 752 Res.push_back(llvm::utostr(Opts.getStackProtector())); 753 } 754 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) { 755 Res.push_back("-ftemplate-depth"); 756 Res.push_back(llvm::utostr(Opts.InstantiationDepth)); 757 } 758 if (!Opts.ObjCConstantStringClass.empty()) { 759 Res.push_back("-fconstant-string-class"); 760 Res.push_back(Opts.ObjCConstantStringClass); 761 } 762 if (Opts.FakeAddressSpaceMap) 763 Res.push_back("-ffake-address-space-map"); 764 if (Opts.ParseUnknownAnytype) 765 Res.push_back("-funknown-anytype"); 766 if (Opts.DebuggerSupport) 767 Res.push_back("-fdebugger-support"); 768 if (Opts.DelayedTemplateParsing) 769 Res.push_back("-fdelayed-template-parsing"); 770 if (Opts.Deprecated) 771 Res.push_back("-fdeprecated-macro"); 772 } 773 774 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 775 std::vector<std::string> &Res) { 776 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 777 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 778 Opts.Macros[i].first); 779 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 780 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 781 Res.push_back("-include"); 782 Res.push_back(Opts.Includes[i]); 783 } 784 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) { 785 Res.push_back("-imacros"); 786 Res.push_back(Opts.MacroIncludes[i]); 787 } 788 if (!Opts.UsePredefines) 789 Res.push_back("-undef"); 790 if (Opts.DetailedRecord) 791 Res.push_back("-detailed-preprocessing-record"); 792 if (!Opts.ImplicitPCHInclude.empty()) { 793 Res.push_back("-include-pch"); 794 Res.push_back(Opts.ImplicitPCHInclude); 795 } 796 if (!Opts.ImplicitPTHInclude.empty()) { 797 Res.push_back("-include-pth"); 798 Res.push_back(Opts.ImplicitPTHInclude); 799 } 800 if (!Opts.TokenCache.empty()) { 801 if (Opts.ImplicitPTHInclude.empty()) { 802 Res.push_back("-token-cache"); 803 Res.push_back(Opts.TokenCache); 804 } else 805 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 806 "Unsupported option combination!"); 807 } 808 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i) { 809 Res.push_back("-chain-include"); 810 Res.push_back(Opts.ChainedIncludes[i]); 811 } 812 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 813 Res.push_back("-remap-file"); 814 Res.push_back(Opts.RemappedFiles[i].first + ";" + 815 Opts.RemappedFiles[i].second); 816 } 817 } 818 819 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 820 std::vector<std::string> &Res) { 821 if (!Opts.ShowCPP && !Opts.ShowMacros) 822 llvm::report_fatal_error("Invalid option combination!"); 823 824 if (Opts.ShowCPP && Opts.ShowMacros) 825 Res.push_back("-dD"); 826 else if (!Opts.ShowCPP && Opts.ShowMacros) 827 Res.push_back("-dM"); 828 829 if (!Opts.ShowLineMarkers) 830 Res.push_back("-P"); 831 if (Opts.ShowComments) 832 Res.push_back("-C"); 833 if (Opts.ShowMacroComments) 834 Res.push_back("-CC"); 835 } 836 837 static void TargetOptsToArgs(const TargetOptions &Opts, 838 std::vector<std::string> &Res) { 839 Res.push_back("-triple"); 840 Res.push_back(Opts.Triple); 841 if (!Opts.CPU.empty()) { 842 Res.push_back("-target-cpu"); 843 Res.push_back(Opts.CPU); 844 } 845 if (!Opts.ABI.empty()) { 846 Res.push_back("-target-abi"); 847 Res.push_back(Opts.ABI); 848 } 849 if (!Opts.LinkerVersion.empty()) { 850 Res.push_back("-target-linker-version"); 851 Res.push_back(Opts.LinkerVersion); 852 } 853 if (!Opts.CXXABI.empty()) { 854 Res.push_back("-cxx-abi"); 855 Res.push_back(Opts.CXXABI); 856 } 857 for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) { 858 Res.push_back("-target-feature"); 859 Res.push_back(Opts.Features[i]); 860 } 861 } 862 863 void CompilerInvocation::toArgs(std::vector<std::string> &Res) { 864 AnalyzerOptsToArgs(getAnalyzerOpts(), Res); 865 CodeGenOptsToArgs(getCodeGenOpts(), Res); 866 DependencyOutputOptsToArgs(getDependencyOutputOpts(), Res); 867 DiagnosticOptsToArgs(getDiagnosticOpts(), Res); 868 FileSystemOptsToArgs(getFileSystemOpts(), Res); 869 FrontendOptsToArgs(getFrontendOpts(), Res); 870 HeaderSearchOptsToArgs(getHeaderSearchOpts(), Res); 871 LangOptsToArgs(getLangOpts(), Res); 872 PreprocessorOptsToArgs(getPreprocessorOpts(), Res); 873 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), Res); 874 TargetOptsToArgs(getTargetOpts(), Res); 875 } 876 877 //===----------------------------------------------------------------------===// 878 // Deserialization (to args) 879 //===----------------------------------------------------------------------===// 880 881 using namespace clang::driver; 882 using namespace clang::driver::cc1options; 883 884 // 885 886 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 887 DiagnosticsEngine &Diags) { 888 unsigned DefaultOpt = 0; 889 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 890 DefaultOpt = 2; 891 // -Os/-Oz implies -O2 892 return (Args.hasArg(OPT_Os) || Args.hasArg (OPT_Oz)) ? 2 : 893 Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 894 } 895 896 static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 897 DiagnosticsEngine &Diags) { 898 using namespace cc1options; 899 900 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 901 StringRef Name = A->getValue(Args); 902 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 903 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 904 .Case(CMDFLAG, NAME##Model) 905 #include "clang/Frontend/Analyses.def" 906 .Default(NumStores); 907 // FIXME: Error handling. 908 if (Value == NumStores) 909 Diags.Report(diag::err_drv_invalid_value) 910 << A->getAsString(Args) << Name; 911 else 912 Opts.AnalysisStoreOpt = Value; 913 } 914 915 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 916 StringRef Name = A->getValue(Args); 917 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 918 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 919 .Case(CMDFLAG, NAME##Model) 920 #include "clang/Frontend/Analyses.def" 921 .Default(NumConstraints); 922 // FIXME: Error handling. 923 if (Value == NumConstraints) 924 Diags.Report(diag::err_drv_invalid_value) 925 << A->getAsString(Args) << Name; 926 else 927 Opts.AnalysisConstraintsOpt = Value; 928 } 929 930 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 931 StringRef Name = A->getValue(Args); 932 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 933 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 934 .Case(CMDFLAG, PD_##NAME) 935 #include "clang/Frontend/Analyses.def" 936 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 937 // FIXME: Error handling. 938 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) 939 Diags.Report(diag::err_drv_invalid_value) 940 << A->getAsString(Args) << Name; 941 else 942 Opts.AnalysisDiagOpt = Value; 943 } 944 945 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 946 StringRef Name = A->getValue(Args); 947 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 948 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 949 .Case(CMDFLAG, NAME) 950 #include "clang/Frontend/Analyses.def" 951 .Default(NumPurgeModes); 952 // FIXME: Error handling. 953 if (Value == NumPurgeModes) 954 Diags.Report(diag::err_drv_invalid_value) 955 << A->getAsString(Args) << Name; 956 else 957 Opts.AnalysisPurgeOpt = Value; 958 } 959 960 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 961 Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 962 Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 963 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 964 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 965 Opts.AnalyzeNestedBlocks = 966 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 967 Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume); 968 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 969 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 970 Opts.CFGAddImplicitDtors = Args.hasArg(OPT_analysis_CFGAddImplicitDtors); 971 Opts.CFGAddInitializers = Args.hasArg(OPT_analysis_CFGAddInitializers); 972 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 973 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 974 Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 975 Opts.EagerlyTrimEGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph); 976 Opts.InlineCall = Args.hasArg(OPT_analyzer_inline_call); 977 978 Opts.CheckersControlList.clear(); 979 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 980 OPT_analyzer_disable_checker), 981 ie = Args.filtered_end(); it != ie; ++it) { 982 const Arg *A = *it; 983 A->claim(); 984 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 985 // We can have a list of comma separated checker names, e.g: 986 // '-analyzer-checker=cocoa,unix' 987 StringRef checkerList = A->getValue(Args); 988 SmallVector<StringRef, 4> checkers; 989 checkerList.split(checkers, ","); 990 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 991 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 992 } 993 } 994 995 static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 996 DiagnosticsEngine &Diags) { 997 using namespace cc1options; 998 999 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1000 if (Opts.OptimizationLevel > 3) { 1001 Diags.Report(diag::err_drv_invalid_value) 1002 << Args.getLastArg(OPT_O)->getAsString(Args) << Opts.OptimizationLevel; 1003 Opts.OptimizationLevel = 3; 1004 } 1005 1006 // We must always run at least the always inlining pass. 1007 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 1008 : CodeGenOptions::OnlyAlwaysInlining; 1009 1010 Opts.DebugInfo = Args.hasArg(OPT_g); 1011 Opts.LimitDebugInfo = Args.hasArg(OPT_flimit_debug_info); 1012 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 1013 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 1014 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 1015 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 1016 OPT_fuse_register_sized_bitfield_access); 1017 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 1018 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 1019 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 1020 Opts.NoCommon = Args.hasArg(OPT_fno_common); 1021 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 1022 Opts.OptimizeSize = Args.hasArg(OPT_Os); 1023 Opts.OptimizeSize = Args.hasArg(OPT_Oz) ? 2 : Opts.OptimizeSize; 1024 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1025 Args.hasArg(OPT_ffreestanding)); 1026 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 1027 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 1028 1029 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 1030 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1031 Opts.ObjCRuntimeHasARC = Args.hasArg(OPT_fobjc_runtime_has_arc); 1032 Opts.ObjCRuntimeHasTerminate = Args.hasArg(OPT_fobjc_runtime_has_terminate); 1033 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 1034 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1035 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1036 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 1037 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 1038 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 1039 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 1040 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 1041 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 1042 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 1043 Opts.NoInfsFPMath = Opts.NoNaNsFPMath = Args.hasArg(OPT_cl_finite_math_only)|| 1044 Args.hasArg(OPT_cl_fast_relaxed_math); 1045 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 1046 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 1047 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 1048 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 1049 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1050 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1051 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 1052 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1053 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 1054 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1055 Opts.UnsafeFPMath = Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1056 Args.hasArg(OPT_cl_fast_relaxed_math); 1057 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1058 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 1059 1060 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1061 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1062 1063 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 1064 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1065 1066 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1067 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1068 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1069 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1070 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 1071 1072 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1073 StringRef Name = A->getValue(Args); 1074 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1075 .Case("legacy", CodeGenOptions::Legacy) 1076 .Case("non-legacy", CodeGenOptions::NonLegacy) 1077 .Case("mixed", CodeGenOptions::Mixed) 1078 .Default(~0U); 1079 if (Method == ~0U) 1080 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1081 else 1082 Opts.ObjCDispatchMethod = Method; 1083 } 1084 } 1085 1086 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1087 ArgList &Args) { 1088 using namespace cc1options; 1089 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1090 Opts.Targets = Args.getAllArgValues(OPT_MT); 1091 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1092 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1093 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1094 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1095 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1096 } 1097 1098 static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1099 DiagnosticsEngine &Diags) { 1100 using namespace cc1options; 1101 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1102 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1103 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1104 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1105 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1106 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1107 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 1108 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1109 OPT_fno_show_column, 1110 /*Default=*/true); 1111 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1112 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1113 Opts.ShowNames = Args.hasArg(OPT_fdiagnostics_show_name); 1114 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 1115 1116 // Default behavior is to not to show note include stacks. 1117 Opts.ShowNoteIncludeStack = false; 1118 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1119 OPT_fno_diagnostics_show_note_include_stack)) 1120 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1121 Opts.ShowNoteIncludeStack = true; 1122 1123 StringRef ShowOverloads = 1124 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1125 if (ShowOverloads == "best") 1126 Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best; 1127 else if (ShowOverloads == "all") 1128 Opts.ShowOverloads = DiagnosticsEngine::Ovl_All; 1129 else 1130 Diags.Report(diag::err_drv_invalid_value) 1131 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1132 << ShowOverloads; 1133 1134 StringRef ShowCategory = 1135 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1136 if (ShowCategory == "none") 1137 Opts.ShowCategories = 0; 1138 else if (ShowCategory == "id") 1139 Opts.ShowCategories = 1; 1140 else if (ShowCategory == "name") 1141 Opts.ShowCategories = 2; 1142 else 1143 Diags.Report(diag::err_drv_invalid_value) 1144 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1145 << ShowCategory; 1146 1147 StringRef Format = 1148 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1149 if (Format == "clang") 1150 Opts.Format = DiagnosticOptions::Clang; 1151 else if (Format == "msvc") 1152 Opts.Format = DiagnosticOptions::Msvc; 1153 else if (Format == "vi") 1154 Opts.Format = DiagnosticOptions::Vi; 1155 else 1156 Diags.Report(diag::err_drv_invalid_value) 1157 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1158 << Format; 1159 1160 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1161 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1162 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1163 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 1164 Opts.MacroBacktraceLimit 1165 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 1166 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1167 Opts.TemplateBacktraceLimit 1168 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 1169 DiagnosticOptions::DefaultTemplateBacktraceLimit, 1170 Diags); 1171 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 1172 DiagnosticOptions::DefaultTabStop, Diags); 1173 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1174 Diags.Report(diag::warn_ignoring_ftabstop_value) 1175 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1176 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1177 } 1178 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 1179 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 1180 Opts.Warnings = Args.getAllArgValues(OPT_W); 1181 } 1182 1183 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1184 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1185 } 1186 1187 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1188 DiagnosticsEngine &Diags) { 1189 using namespace cc1options; 1190 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1191 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1192 switch (A->getOption().getID()) { 1193 default: 1194 llvm_unreachable("Invalid option in group!"); 1195 case OPT_ast_dump: 1196 Opts.ProgramAction = frontend::ASTDump; break; 1197 case OPT_ast_dump_xml: 1198 Opts.ProgramAction = frontend::ASTDumpXML; break; 1199 case OPT_ast_print: 1200 Opts.ProgramAction = frontend::ASTPrint; break; 1201 case OPT_ast_view: 1202 Opts.ProgramAction = frontend::ASTView; break; 1203 case OPT_dump_raw_tokens: 1204 Opts.ProgramAction = frontend::DumpRawTokens; break; 1205 case OPT_dump_tokens: 1206 Opts.ProgramAction = frontend::DumpTokens; break; 1207 case OPT_S: 1208 Opts.ProgramAction = frontend::EmitAssembly; break; 1209 case OPT_emit_llvm_bc: 1210 Opts.ProgramAction = frontend::EmitBC; break; 1211 case OPT_emit_html: 1212 Opts.ProgramAction = frontend::EmitHTML; break; 1213 case OPT_emit_llvm: 1214 Opts.ProgramAction = frontend::EmitLLVM; break; 1215 case OPT_emit_llvm_only: 1216 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1217 case OPT_emit_codegen_only: 1218 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1219 case OPT_emit_obj: 1220 Opts.ProgramAction = frontend::EmitObj; break; 1221 case OPT_fixit_EQ: 1222 Opts.FixItSuffix = A->getValue(Args); 1223 // fall-through! 1224 case OPT_fixit: 1225 Opts.ProgramAction = frontend::FixIt; break; 1226 case OPT_emit_module: 1227 Opts.ProgramAction = frontend::GenerateModule; break; 1228 case OPT_emit_pch: 1229 Opts.ProgramAction = frontend::GeneratePCH; break; 1230 case OPT_emit_pth: 1231 Opts.ProgramAction = frontend::GeneratePTH; break; 1232 case OPT_init_only: 1233 Opts.ProgramAction = frontend::InitOnly; break; 1234 case OPT_fsyntax_only: 1235 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1236 case OPT_print_decl_contexts: 1237 Opts.ProgramAction = frontend::PrintDeclContext; break; 1238 case OPT_print_preamble: 1239 Opts.ProgramAction = frontend::PrintPreamble; break; 1240 case OPT_E: 1241 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1242 case OPT_rewrite_macros: 1243 Opts.ProgramAction = frontend::RewriteMacros; break; 1244 case OPT_rewrite_objc: 1245 Opts.ProgramAction = frontend::RewriteObjC; break; 1246 case OPT_rewrite_test: 1247 Opts.ProgramAction = frontend::RewriteTest; break; 1248 case OPT_analyze: 1249 Opts.ProgramAction = frontend::RunAnalysis; break; 1250 case OPT_Eonly: 1251 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1252 } 1253 } 1254 1255 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1256 Opts.Plugins.push_back(A->getValue(Args,0)); 1257 Opts.ProgramAction = frontend::PluginAction; 1258 Opts.ActionName = A->getValue(Args); 1259 1260 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1261 end = Args.filtered_end(); it != end; ++it) { 1262 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1263 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1264 } 1265 } 1266 1267 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1268 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 1269 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 1270 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1271 end = Args.filtered_end(); it != end; ++it) { 1272 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 1273 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 1274 } 1275 } 1276 1277 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1278 Opts.CodeCompletionAt = 1279 ParsedSourceLocation::FromString(A->getValue(Args)); 1280 if (Opts.CodeCompletionAt.FileName.empty()) 1281 Diags.Report(diag::err_drv_invalid_value) 1282 << A->getAsString(Args) << A->getValue(Args); 1283 } 1284 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1285 1286 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1287 Opts.Plugins = Args.getAllArgValues(OPT_load); 1288 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1289 Opts.ShowHelp = Args.hasArg(OPT_help); 1290 Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros); 1291 Opts.ShowCodePatternsInCodeCompletion 1292 = Args.hasArg(OPT_code_completion_patterns); 1293 Opts.ShowGlobalSymbolsInCodeCompletion 1294 = !Args.hasArg(OPT_no_code_completion_globals); 1295 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1296 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1297 Opts.ShowVersion = Args.hasArg(OPT_version); 1298 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1299 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1300 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1301 1302 Opts.ARCMTAction = FrontendOptions::ARCMT_None; 1303 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1304 OPT_arcmt_modify, 1305 OPT_arcmt_migrate)) { 1306 switch (A->getOption().getID()) { 1307 default: 1308 llvm_unreachable("missed a case"); 1309 case OPT_arcmt_check: 1310 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1311 break; 1312 case OPT_arcmt_modify: 1313 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1314 break; 1315 case OPT_arcmt_migrate: 1316 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1317 break; 1318 } 1319 } 1320 Opts.ARCMTMigrateDir = Args.getLastArgValue(OPT_arcmt_migrate_directory); 1321 Opts.ARCMTMigrateReportOut 1322 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1323 Opts.ARCMTMigrateEmitARCErrors 1324 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1325 1326 InputKind DashX = IK_None; 1327 if (const Arg *A = Args.getLastArg(OPT_x)) { 1328 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1329 .Case("c", IK_C) 1330 .Case("cl", IK_OpenCL) 1331 .Case("cuda", IK_CUDA) 1332 .Case("c++", IK_CXX) 1333 .Case("objective-c", IK_ObjC) 1334 .Case("objective-c++", IK_ObjCXX) 1335 .Case("cpp-output", IK_PreprocessedC) 1336 .Case("assembler-with-cpp", IK_Asm) 1337 .Case("c++-cpp-output", IK_PreprocessedCXX) 1338 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1339 .Case("objc-cpp-output", IK_PreprocessedObjC) 1340 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1341 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1342 .Case("c-header", IK_C) 1343 .Case("cl-header", IK_OpenCL) 1344 .Case("objective-c-header", IK_ObjC) 1345 .Case("c++-header", IK_CXX) 1346 .Case("objective-c++-header", IK_ObjCXX) 1347 .Case("ast", IK_AST) 1348 .Case("ir", IK_LLVM_IR) 1349 .Default(IK_None); 1350 if (DashX == IK_None) 1351 Diags.Report(diag::err_drv_invalid_value) 1352 << A->getAsString(Args) << A->getValue(Args); 1353 } 1354 1355 // '-' is the default input if none is given. 1356 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1357 Opts.Inputs.clear(); 1358 if (Inputs.empty()) 1359 Inputs.push_back("-"); 1360 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1361 InputKind IK = DashX; 1362 if (IK == IK_None) { 1363 IK = FrontendOptions::getInputKindForExtension( 1364 StringRef(Inputs[i]).rsplit('.').second); 1365 // FIXME: Remove this hack. 1366 if (i == 0) 1367 DashX = IK; 1368 } 1369 Opts.Inputs.push_back(std::make_pair(IK, Inputs[i])); 1370 } 1371 1372 return DashX; 1373 } 1374 1375 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1376 void *MainAddr) { 1377 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1378 1379 if (!P.isEmpty()) { 1380 P.eraseComponent(); // Remove /clang from foo/bin/clang 1381 P.eraseComponent(); // Remove /bin from foo/bin 1382 1383 // Get foo/lib/clang/<version>/include 1384 P.appendComponent("lib"); 1385 P.appendComponent("clang"); 1386 P.appendComponent(CLANG_VERSION_STRING); 1387 } 1388 1389 return P.str(); 1390 } 1391 1392 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1393 using namespace cc1options; 1394 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1395 Opts.Verbose = Args.hasArg(OPT_v); 1396 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1397 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1398 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1399 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1400 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 1401 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1402 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 1403 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1404 1405 // Add -I..., -F..., and -index-header-map options in order. 1406 bool IsIndexHeaderMap = false; 1407 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1408 OPT_index_header_map), 1409 ie = Args.filtered_end(); it != ie; ++it) { 1410 if ((*it)->getOption().matches(OPT_index_header_map)) { 1411 // -index-header-map applies to the next -I or -F. 1412 IsIndexHeaderMap = true; 1413 continue; 1414 } 1415 1416 frontend::IncludeDirGroup Group 1417 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1418 1419 Opts.AddPath((*it)->getValue(Args), Group, true, 1420 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 1421 IsIndexHeaderMap = false; 1422 } 1423 1424 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1425 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1426 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1427 OPT_iwithprefixbefore), 1428 ie = Args.filtered_end(); it != ie; ++it) { 1429 const Arg *A = *it; 1430 if (A->getOption().matches(OPT_iprefix)) 1431 Prefix = A->getValue(Args); 1432 else if (A->getOption().matches(OPT_iwithprefix)) 1433 Opts.AddPath(Prefix.str() + A->getValue(Args), 1434 frontend::System, false, false, false); 1435 else 1436 Opts.AddPath(Prefix.str() + A->getValue(Args), 1437 frontend::Angled, false, false, false); 1438 } 1439 1440 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1441 ie = Args.filtered_end(); it != ie; ++it) 1442 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 1443 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1444 ie = Args.filtered_end(); it != ie; ++it) 1445 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 1446 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1447 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1448 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 1449 !(*it)->getOption().matches(OPT_iwithsysroot)); 1450 1451 // Add the paths for the various language specific isystem flags. 1452 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1453 ie = Args.filtered_end(); it != ie; ++it) 1454 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 1455 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1456 ie = Args.filtered_end(); it != ie; ++it) 1457 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 1458 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1459 ie = Args.filtered_end(); it != ie; ++it) 1460 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 1461 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1462 ie = Args.filtered_end(); it != ie; ++it) 1463 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 1464 true); 1465 } 1466 1467 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1468 LangStandard::Kind LangStd) { 1469 // Set some properties which depend solely on the input kind; it would be nice 1470 // to move these to the language standard, and have the driver resolve the 1471 // input kind + language standard. 1472 if (IK == IK_Asm) { 1473 Opts.AsmPreprocessor = 1; 1474 } else if (IK == IK_ObjC || 1475 IK == IK_ObjCXX || 1476 IK == IK_PreprocessedObjC || 1477 IK == IK_PreprocessedObjCXX) { 1478 Opts.ObjC1 = Opts.ObjC2 = 1; 1479 } 1480 1481 if (LangStd == LangStandard::lang_unspecified) { 1482 // Based on the base language, pick one. 1483 switch (IK) { 1484 case IK_None: 1485 case IK_AST: 1486 case IK_LLVM_IR: 1487 llvm_unreachable("Invalid input kind!"); 1488 case IK_OpenCL: 1489 LangStd = LangStandard::lang_opencl; 1490 break; 1491 case IK_CUDA: 1492 LangStd = LangStandard::lang_cuda; 1493 break; 1494 case IK_Asm: 1495 case IK_C: 1496 case IK_PreprocessedC: 1497 case IK_ObjC: 1498 case IK_PreprocessedObjC: 1499 LangStd = LangStandard::lang_gnu99; 1500 break; 1501 case IK_CXX: 1502 case IK_PreprocessedCXX: 1503 case IK_ObjCXX: 1504 case IK_PreprocessedObjCXX: 1505 LangStd = LangStandard::lang_gnucxx98; 1506 break; 1507 } 1508 } 1509 1510 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1511 Opts.BCPLComment = Std.hasBCPLComments(); 1512 Opts.C99 = Std.isC99(); 1513 Opts.C1X = Std.isC1X(); 1514 Opts.CPlusPlus = Std.isCPlusPlus(); 1515 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1516 Opts.Digraphs = Std.hasDigraphs(); 1517 Opts.GNUMode = Std.isGNUMode(); 1518 Opts.GNUInline = !Std.isC99(); 1519 Opts.HexFloats = Std.hasHexFloats(); 1520 Opts.ImplicitInt = Std.hasImplicitInt(); 1521 1522 // OpenCL has some additional defaults. 1523 if (LangStd == LangStandard::lang_opencl) { 1524 Opts.OpenCL = 1; 1525 Opts.AltiVec = 0; 1526 Opts.CXXOperatorNames = 1; 1527 Opts.LaxVectorConversions = 0; 1528 Opts.DefaultFPContract = 1; 1529 } 1530 1531 if (LangStd == LangStandard::lang_cuda) 1532 Opts.CUDA = 1; 1533 1534 // OpenCL and C++ both have bool, true, false keywords. 1535 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1536 1537 Opts.GNUKeywords = Opts.GNUMode; 1538 Opts.CXXOperatorNames = Opts.CPlusPlus; 1539 1540 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1541 // is specified, or -std is set to a conforming mode. 1542 Opts.Trigraphs = !Opts.GNUMode; 1543 1544 Opts.DollarIdents = !Opts.AsmPreprocessor; 1545 } 1546 1547 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1548 DiagnosticsEngine &Diags) { 1549 // FIXME: Cleanup per-file based stuff. 1550 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1551 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1552 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1553 #define LANGSTANDARD(id, name, desc, features) \ 1554 .Case(name, LangStandard::lang_##id) 1555 #include "clang/Frontend/LangStandards.def" 1556 .Default(LangStandard::lang_unspecified); 1557 if (LangStd == LangStandard::lang_unspecified) 1558 Diags.Report(diag::err_drv_invalid_value) 1559 << A->getAsString(Args) << A->getValue(Args); 1560 else { 1561 // Valid standard, check to make sure language and standard are compatable. 1562 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1563 switch (IK) { 1564 case IK_C: 1565 case IK_ObjC: 1566 case IK_PreprocessedC: 1567 case IK_PreprocessedObjC: 1568 if (!(Std.isC89() || Std.isC99())) 1569 Diags.Report(diag::err_drv_argument_not_allowed_with) 1570 << A->getAsString(Args) << "C/ObjC"; 1571 break; 1572 case IK_CXX: 1573 case IK_ObjCXX: 1574 case IK_PreprocessedCXX: 1575 case IK_PreprocessedObjCXX: 1576 if (!Std.isCPlusPlus()) 1577 Diags.Report(diag::err_drv_argument_not_allowed_with) 1578 << A->getAsString(Args) << "C++/ObjC++"; 1579 break; 1580 case IK_OpenCL: 1581 if (!Std.isC99()) 1582 Diags.Report(diag::err_drv_argument_not_allowed_with) 1583 << A->getAsString(Args) << "OpenCL"; 1584 break; 1585 case IK_CUDA: 1586 if (!Std.isCPlusPlus()) 1587 Diags.Report(diag::err_drv_argument_not_allowed_with) 1588 << A->getAsString(Args) << "CUDA"; 1589 break; 1590 default: 1591 break; 1592 } 1593 } 1594 } 1595 1596 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1597 if (strcmp(A->getValue(Args), "CL1.1") != 0) { 1598 Diags.Report(diag::err_drv_invalid_value) 1599 << A->getAsString(Args) << A->getValue(Args); 1600 } 1601 } 1602 1603 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1604 1605 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1606 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1607 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1608 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1609 // name, as it doesn't seem a useful distinction. 1610 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1611 Opts.GNUKeywords); 1612 1613 if (Args.hasArg(OPT_fno_operator_names)) 1614 Opts.CXXOperatorNames = 0; 1615 1616 if (Opts.ObjC1) { 1617 if (Args.hasArg(OPT_fobjc_gc_only)) 1618 Opts.setGC(LangOptions::GCOnly); 1619 else if (Args.hasArg(OPT_fobjc_gc)) 1620 Opts.setGC(LangOptions::HybridGC); 1621 else if (Args.hasArg(OPT_fobjc_arc)) { 1622 Opts.ObjCAutoRefCount = 1; 1623 if (Args.hasArg(OPT_fobjc_fragile_abi)) 1624 Diags.Report(diag::err_arc_nonfragile_abi); 1625 } 1626 1627 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1628 Opts.ObjCRuntimeHasWeak = 1; 1629 1630 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1631 Opts.ObjCInferRelatedResultType = 0; 1632 } 1633 1634 if (Args.hasArg(OPT_fgnu89_inline)) 1635 Opts.GNUInline = 1; 1636 1637 if (Args.hasArg(OPT_fapple_kext)) { 1638 if (!Opts.CPlusPlus) 1639 Diags.Report(diag::warn_c_kext); 1640 else 1641 Opts.AppleKext = 1; 1642 } 1643 1644 if (Args.hasArg(OPT_print_ivar_layout)) 1645 Opts.ObjCGCBitmapPrint = 1; 1646 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1647 Opts.NoConstantCFStrings = 1; 1648 1649 if (Args.hasArg(OPT_faltivec)) 1650 Opts.AltiVec = 1; 1651 1652 if (Args.hasArg(OPT_pthread)) 1653 Opts.POSIXThreads = 1; 1654 1655 if (Args.hasArg(OPT_fdelayed_template_parsing)) 1656 Opts.DelayedTemplateParsing = 1; 1657 1658 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1659 if (Vis == "default") 1660 Opts.setVisibilityMode(DefaultVisibility); 1661 else if (Vis == "hidden") 1662 Opts.setVisibilityMode(HiddenVisibility); 1663 else if (Vis == "protected") 1664 Opts.setVisibilityMode(ProtectedVisibility); 1665 else 1666 Diags.Report(diag::err_drv_invalid_value) 1667 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1668 1669 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1670 Opts.InlineVisibilityHidden = 1; 1671 1672 if (Args.hasArg(OPT_ftrapv)) { 1673 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1674 // Set the handler, if one is specified. 1675 Opts.OverflowHandler = 1676 Args.getLastArgValue(OPT_ftrapv_handler); 1677 } 1678 else if (Args.hasArg(OPT_fwrapv)) 1679 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1680 1681 if (Args.hasArg(OPT_trigraphs)) 1682 Opts.Trigraphs = 1; 1683 1684 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1685 OPT_fno_dollars_in_identifiers, 1686 Opts.DollarIdents); 1687 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1688 Opts.MicrosoftExt = Args.hasArg(OPT_fms_extensions); 1689 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 1690 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 1691 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1692 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1693 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1694 Opts.ConstStrings); 1695 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1696 Opts.LaxVectorConversions = 0; 1697 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1698 Opts.ThreadsafeStatics = 0; 1699 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1700 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1701 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1702 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1703 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1704 1705 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1706 Opts.Blocks = Args.hasArg(OPT_fblocks); 1707 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1708 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 1709 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 1710 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1711 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1712 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1713 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1714 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1715 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1716 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1717 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 1718 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024, 1719 Diags); 1720 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1721 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy, 1722 0, Diags); 1723 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1724 Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime); 1725 Opts.ObjCConstantStringClass = 1726 Args.getLastArgValue(OPT_fconstant_string_class); 1727 Opts.ObjCNonFragileABI = !Args.hasArg(OPT_fobjc_fragile_abi); 1728 if (Opts.ObjCNonFragileABI) 1729 Opts.ObjCNonFragileABI2 = true; 1730 Opts.ObjCDefaultSynthProperties = 1731 Args.hasArg(OPT_fobjc_default_synthesize_properties); 1732 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 1733 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1734 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct, 0, Diags); 1735 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 1736 Opts.Static = Args.hasArg(OPT_static_define); 1737 Opts.DumpRecordLayouts = Args.hasArg(OPT_fdump_record_layouts); 1738 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1739 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1740 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1741 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1742 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1743 Opts.OptimizeSize = 0; 1744 Opts.MRTD = Args.hasArg(OPT_mrtd); 1745 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1746 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1747 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1748 1749 // Record whether the __DEPRECATED define was requested. 1750 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1751 OPT_fno_deprecated_macro, 1752 Opts.Deprecated); 1753 1754 // FIXME: Eliminate this dependency. 1755 unsigned Opt = getOptimizationLevel(Args, IK, Diags); 1756 Opts.Optimize = Opt != 0; 1757 1758 // This is the __NO_INLINE__ define, which just depends on things like the 1759 // optimization level and -fno-inline, not actually whether the backend has 1760 // inlining enabled. 1761 // 1762 // FIXME: This is affected by other options (-fno-inline). 1763 Opts.NoInline = !Opt; 1764 1765 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 1766 switch (SSP) { 1767 default: 1768 Diags.Report(diag::err_drv_invalid_value) 1769 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1770 break; 1771 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1772 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1773 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 1774 } 1775 } 1776 1777 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1778 FileManager &FileMgr, 1779 DiagnosticsEngine &Diags) { 1780 using namespace cc1options; 1781 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1782 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1783 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1784 Opts.TokenCache = A->getValue(Args); 1785 else 1786 Opts.TokenCache = Opts.ImplicitPTHInclude; 1787 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1788 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1789 Opts.AutoModuleImport = Args.hasArg(OPT_fauto_module_import); 1790 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1791 1792 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1793 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1794 ie = Args.filtered_end(); it != ie; ++it) { 1795 const Arg *A = *it; 1796 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 1797 } 1798 1799 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1800 StringRef Value(A->getValue(Args)); 1801 size_t Comma = Value.find(','); 1802 unsigned Bytes = 0; 1803 unsigned EndOfLine = 0; 1804 1805 if (Comma == StringRef::npos || 1806 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1807 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1808 Diags.Report(diag::err_drv_preamble_format); 1809 else { 1810 Opts.PrecompiledPreambleBytes.first = Bytes; 1811 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1812 } 1813 } 1814 1815 // Add macros from the command line. 1816 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1817 ie = Args.filtered_end(); it != ie; ++it) { 1818 if ((*it)->getOption().matches(OPT_D)) 1819 Opts.addMacroDef((*it)->getValue(Args)); 1820 else 1821 Opts.addMacroUndef((*it)->getValue(Args)); 1822 } 1823 1824 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1825 1826 // Add the ordered list of -includes. 1827 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 1828 OPT_include_pth), 1829 ie = Args.filtered_end(); it != ie; ++it) { 1830 const Arg *A = *it; 1831 // PCH is handled specially, we need to extra the original include path. 1832 if (A->getOption().matches(OPT_include_pch)) { 1833 std::string OriginalFile = 1834 ASTReader::getOriginalSourceFile(A->getValue(Args), FileMgr, Diags); 1835 if (OriginalFile.empty()) 1836 continue; 1837 1838 Opts.Includes.push_back(OriginalFile); 1839 } else 1840 Opts.Includes.push_back(A->getValue(Args)); 1841 } 1842 1843 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1844 ie = Args.filtered_end(); it != ie; ++it) { 1845 const Arg *A = *it; 1846 Opts.ChainedIncludes.push_back(A->getValue(Args)); 1847 } 1848 1849 // Include 'altivec.h' if -faltivec option present 1850 if (Args.hasArg(OPT_faltivec)) 1851 Opts.Includes.push_back("altivec.h"); 1852 1853 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1854 ie = Args.filtered_end(); it != ie; ++it) { 1855 const Arg *A = *it; 1856 std::pair<StringRef,StringRef> Split = 1857 StringRef(A->getValue(Args)).split(';'); 1858 1859 if (Split.second.empty()) { 1860 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1861 continue; 1862 } 1863 1864 Opts.addRemappedFile(Split.first, Split.second); 1865 } 1866 1867 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1868 StringRef Name = A->getValue(Args); 1869 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1870 .Case("libc++", ARCXX_libcxx) 1871 .Case("libstdc++", ARCXX_libstdcxx) 1872 .Case("none", ARCXX_nolib) 1873 .Default(~0U); 1874 if (Library == ~0U) 1875 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1876 else 1877 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1878 } 1879 } 1880 1881 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1882 ArgList &Args) { 1883 using namespace cc1options; 1884 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1885 Opts.ShowComments = Args.hasArg(OPT_C); 1886 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1887 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1888 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1889 } 1890 1891 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1892 using namespace cc1options; 1893 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1894 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 1895 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1896 Opts.Features = Args.getAllArgValues(OPT_target_feature); 1897 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1898 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1899 1900 // Use the host triple if unspecified. 1901 if (Opts.Triple.empty()) 1902 Opts.Triple = llvm::sys::getHostTriple(); 1903 } 1904 1905 // 1906 1907 void CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1908 const char *const *ArgBegin, 1909 const char *const *ArgEnd, 1910 DiagnosticsEngine &Diags) { 1911 // Parse the arguments. 1912 llvm::OwningPtr<OptTable> Opts(createCC1OptTable()); 1913 unsigned MissingArgIndex, MissingArgCount; 1914 llvm::OwningPtr<InputArgList> Args( 1915 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 1916 1917 // Check for missing argument error. 1918 if (MissingArgCount) 1919 Diags.Report(diag::err_drv_missing_argument) 1920 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1921 1922 // Issue errors on unknown arguments. 1923 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1924 ie = Args->filtered_end(); it != ie; ++it) 1925 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1926 1927 ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags); 1928 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1929 ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, Diags); 1930 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1931 // FIXME: We shouldn't have to pass the DashX option around here 1932 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1933 ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags); 1934 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1935 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1936 ParseLangArgs(Res.getLangOpts(), *Args, DashX, Diags); 1937 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1938 Res.getLangOpts().ObjCExceptions = 1; 1939 } 1940 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1941 // PCH file and find the original header name. Remove the need to do that in 1942 // ParsePreprocessorArgs and remove the FileManager 1943 // parameters from the function and the "FileManager.h" #include. 1944 FileManager FileMgr(Res.getFileSystemOpts()); 1945 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1946 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 1947 ParseTargetArgs(Res.getTargetOpts(), *Args); 1948 } 1949 1950 namespace { 1951 1952 class ModuleSignature { 1953 llvm::SmallVector<uint64_t, 16> Data; 1954 unsigned CurBit; 1955 uint64_t CurValue; 1956 1957 public: 1958 ModuleSignature() : CurBit(0), CurValue(0) { } 1959 1960 void add(uint64_t Value, unsigned Bits); 1961 void add(StringRef Value); 1962 void flush(); 1963 1964 llvm::APInt getAsInteger() const; 1965 }; 1966 } 1967 1968 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1969 CurValue |= Value << CurBit; 1970 if (CurBit + NumBits < 64) { 1971 CurBit += NumBits; 1972 return; 1973 } 1974 1975 // Add the current word. 1976 Data.push_back(CurValue); 1977 1978 if (CurBit) 1979 CurValue = Value >> (64-CurBit); 1980 else 1981 CurValue = 0; 1982 CurBit = (CurBit+NumBits) & 63; 1983 } 1984 1985 void ModuleSignature::flush() { 1986 if (CurBit == 0) 1987 return; 1988 1989 Data.push_back(CurValue); 1990 CurBit = 0; 1991 CurValue = 0; 1992 } 1993 1994 void ModuleSignature::add(StringRef Value) { 1995 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1996 add(*I, 8); 1997 } 1998 1999 llvm::APInt ModuleSignature::getAsInteger() const { 2000 return llvm::APInt(Data.size() * 64, Data); 2001 } 2002 2003 std::string CompilerInvocation::getModuleHash() const { 2004 ModuleSignature Signature; 2005 2006 // Start the signature with the compiler version. 2007 Signature.add(getClangFullRepositoryVersion()); 2008 2009 // Extend the signature with the language options 2010 #define LANGOPT(Name, Bits, Default, Description) \ 2011 Signature.add(LangOpts.Name, Bits); 2012 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2013 Signature.add(static_cast<unsigned>(LangOpts.get##Name()), Bits); 2014 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2015 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2016 #include "clang/Basic/LangOptions.def" 2017 2018 // Extend the signature with the target triple 2019 llvm::Triple T(TargetOpts.Triple); 2020 Signature.add((unsigned)T.getArch(), 5); 2021 Signature.add((unsigned)T.getVendor(), 4); 2022 Signature.add((unsigned)T.getOS(), 5); 2023 Signature.add((unsigned)T.getEnvironment(), 4); 2024 2025 // Extend the signature with preprocessor options. 2026 Signature.add(getPreprocessorOpts().UsePredefines, 1); 2027 Signature.add(getPreprocessorOpts().DetailedRecord, 1); 2028 2029 // Hash the preprocessor defines. 2030 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines. 2031 std::vector<StringRef> MacroDefs; 2032 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 2033 I = getPreprocessorOpts().Macros.begin(), 2034 IEnd = getPreprocessorOpts().Macros.end(); 2035 I != IEnd; ++I) { 2036 if (!I->second) 2037 MacroDefs.push_back(I->first); 2038 } 2039 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end()); 2040 2041 unsigned PPHashResult = 0; 2042 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I) 2043 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult); 2044 Signature.add(PPHashResult, 32); 2045 2046 // We've generated the signature. Treat it as one large APInt that we'll 2047 // encode in base-36 and return. 2048 Signature.flush(); 2049 return Signature.getAsInteger().toString(36, /*Signed=*/false); 2050 } 2051