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