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/Options.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 //===----------------------------------------------------------------------===// 34 // Initialization. 35 //===----------------------------------------------------------------------===// 36 37 CompilerInvocationBase::CompilerInvocationBase() 38 : LangOpts(new LangOptions()) {} 39 40 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 41 : RefCountedBase<CompilerInvocation>(), 42 LangOpts(new LangOptions(*X.getLangOpts())) {} 43 44 //===----------------------------------------------------------------------===// 45 // Utility functions. 46 //===----------------------------------------------------------------------===// 47 48 static const char *getAnalysisStoreName(AnalysisStores Kind) { 49 switch (Kind) { 50 default: 51 llvm_unreachable("Unknown analysis store!"); 52 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 53 case NAME##Model: return CMDFLAG; 54 #include "clang/Frontend/Analyses.def" 55 } 56 } 57 58 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) { 59 switch (Kind) { 60 default: 61 llvm_unreachable("Unknown analysis constraints!"); 62 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 63 case NAME##Model: return CMDFLAG; 64 #include "clang/Frontend/Analyses.def" 65 } 66 } 67 68 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) { 69 switch (Kind) { 70 default: 71 llvm_unreachable("Unknown analysis client!"); 72 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \ 73 case PD_##NAME: return CMDFLAG; 74 #include "clang/Frontend/Analyses.def" 75 } 76 } 77 78 static const char *getAnalysisPurgeModeName(AnalysisPurgeMode Kind) { 79 switch (Kind) { 80 default: 81 llvm_unreachable("Unknown analysis purge mode!"); 82 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 83 case NAME: return CMDFLAG; 84 #include "clang/Frontend/Analyses.def" 85 } 86 } 87 88 static const char *getAnalysisIPAModeName(AnalysisIPAMode Kind) { 89 switch (Kind) { 90 default: 91 llvm_unreachable("Unknown analysis ipa mode!"); 92 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 93 case NAME: return CMDFLAG; 94 #include "clang/Frontend/Analyses.def" 95 } 96 } 97 98 static const char * 99 getAnalysisInliningModeName(AnalysisInliningMode Kind) { 100 switch (Kind) { 101 default: 102 llvm_unreachable("Unknown analysis inlining mode!"); 103 #define ANALYSIS_INLINE_SELECTION(NAME, CMDFLAG, DESC) \ 104 case NAME: return CMDFLAG; 105 #include "clang/Frontend/Analyses.def" 106 } 107 } 108 109 //===----------------------------------------------------------------------===// 110 // Serialization (to args) 111 //===----------------------------------------------------------------------===// 112 113 namespace { 114 /// ToArgsList - Helper class to create a list of std::strings. 115 class ToArgsList { 116 std::vector<std::string> &Res; 117 public: 118 explicit ToArgsList(std::vector<std::string> &Res) : Res(Res) {} 119 120 void push_back(StringRef Str) { 121 // Avoid creating a temporary string. 122 Res.push_back(std::string()); 123 Res.back().assign(Str.data(), Str.size()); 124 } 125 126 void push_back(StringRef Str1, StringRef Str2) { 127 push_back(Str1); 128 push_back(Str2); 129 } 130 }; 131 } 132 133 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, ToArgsList &Res) { 134 if (Opts.ShowCheckerHelp) 135 Res.push_back("-analyzer-checker-help"); 136 if (Opts.AnalysisStoreOpt != RegionStoreModel) 137 Res.push_back("-analyzer-store", 138 getAnalysisStoreName(Opts.AnalysisStoreOpt)); 139 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) 140 Res.push_back("-analyzer-constraints", 141 getAnalysisConstraintName(Opts.AnalysisConstraintsOpt)); 142 if (Opts.AnalysisDiagOpt != PD_HTML) 143 Res.push_back("-analyzer-output", 144 getAnalysisDiagClientName(Opts.AnalysisDiagOpt)); 145 if (Opts.AnalysisPurgeOpt != PurgeStmt) 146 Res.push_back("-analyzer-purge", 147 getAnalysisPurgeModeName(Opts.AnalysisPurgeOpt)); 148 if (!Opts.AnalyzeSpecificFunction.empty()) 149 Res.push_back("-analyze-function", Opts.AnalyzeSpecificFunction); 150 if (Opts.IPAMode != Inlining) 151 Res.push_back("-analyzer-ipa", getAnalysisIPAModeName(Opts.IPAMode)); 152 if (Opts.InliningMode != NoRedundancy) 153 Res.push_back("-analyzer-inlining-mode", 154 getAnalysisInliningModeName(Opts.InliningMode)); 155 156 if (Opts.AnalyzeAll) 157 Res.push_back("-analyzer-opt-analyze-headers"); 158 if (Opts.AnalyzerDisplayProgress) 159 Res.push_back("-analyzer-display-progress"); 160 if (Opts.AnalyzeNestedBlocks) 161 Res.push_back("-analyzer-opt-analyze-nested-blocks"); 162 if (Opts.EagerlyAssume) 163 Res.push_back("-analyzer-eagerly-assume"); 164 if (Opts.TrimGraph) 165 Res.push_back("-trim-egraph"); 166 if (Opts.VisualizeEGDot) 167 Res.push_back("-analyzer-viz-egraph-graphviz"); 168 if (Opts.VisualizeEGUbi) 169 Res.push_back("-analyzer-viz-egraph-ubigraph"); 170 if (Opts.NoRetryExhausted) 171 Res.push_back("-analyzer-disable-retry-exhausted"); 172 173 for (unsigned i = 0, e = Opts.CheckersControlList.size(); i != e; ++i) { 174 const std::pair<std::string, bool> &opt = Opts.CheckersControlList[i]; 175 if (opt.second) 176 Res.push_back("-analyzer-disable-checker"); 177 else 178 Res.push_back("-analyzer-checker"); 179 Res.push_back(opt.first); 180 } 181 } 182 183 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) { 184 switch (Opts.DebugInfo) { 185 case CodeGenOptions::NoDebugInfo: 186 break; 187 case CodeGenOptions::DebugLineTablesOnly: 188 Res.push_back("-gline-tables-only"); 189 break; 190 case CodeGenOptions::LimitedDebugInfo: 191 Res.push_back("-g"); 192 Res.push_back("-flimit-debug-info"); 193 break; 194 case CodeGenOptions::FullDebugInfo: 195 Res.push_back("-g"); 196 Res.push_back("-fno-limit-debug-info"); 197 break; 198 } 199 if (Opts.DisableLLVMOpts) 200 Res.push_back("-disable-llvm-optzns"); 201 if (Opts.DisableRedZone) 202 Res.push_back("-disable-red-zone"); 203 if (Opts.DisableTailCalls) 204 Res.push_back("-mdisable-tail-calls"); 205 if (!Opts.DebugCompilationDir.empty()) 206 Res.push_back("-fdebug-compilation-dir", Opts.DebugCompilationDir); 207 if (!Opts.DwarfDebugFlags.empty()) 208 Res.push_back("-dwarf-debug-flags", Opts.DwarfDebugFlags); 209 if (Opts.EmitGcovArcs) 210 Res.push_back("-femit-coverage-data"); 211 if (Opts.EmitGcovNotes) 212 Res.push_back("-femit-coverage-notes"); 213 if (Opts.EmitOpenCLArgMetadata) 214 Res.push_back("-cl-kernel-arg-info"); 215 if (!Opts.MergeAllConstants) 216 Res.push_back("-fno-merge-all-constants"); 217 if (Opts.NoCommon) 218 Res.push_back("-fno-common"); 219 if (Opts.ForbidGuardVariables) 220 Res.push_back("-fforbid-guard-variables"); 221 if (Opts.UseRegisterSizedBitfieldAccess) 222 Res.push_back("-fuse-register-sized-bitfield-access"); 223 if (Opts.NoImplicitFloat) 224 Res.push_back("-no-implicit-float"); 225 if (Opts.OmitLeafFramePointer) 226 Res.push_back("-momit-leaf-frame-pointer"); 227 if (Opts.OptimizeSize) { 228 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 229 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz"); 230 } else if (Opts.OptimizationLevel != 0) 231 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 232 if (!Opts.MainFileName.empty()) 233 Res.push_back("-main-file-name", Opts.MainFileName); 234 if (Opts.NoInfsFPMath) 235 Res.push_back("-menable-no-infinities"); 236 if (Opts.NoNaNsFPMath) 237 Res.push_back("-menable-no-nans"); 238 // SimplifyLibCalls is only derived. 239 // TimePasses is only derived. 240 // UnitAtATime is unused. 241 // Inlining is only derived. 242 243 // UnrollLoops is derived, but also accepts an option, no 244 // harm in pushing it back here. 245 if (Opts.UnrollLoops) 246 Res.push_back("-funroll-loops"); 247 if (Opts.DataSections) 248 Res.push_back("-fdata-sections"); 249 if (Opts.FunctionSections) 250 Res.push_back("-ffunction-sections"); 251 if (Opts.AsmVerbose) 252 Res.push_back("-masm-verbose"); 253 if (!Opts.CodeModel.empty()) 254 Res.push_back("-mcode-model", Opts.CodeModel); 255 if (Opts.CUDAIsDevice) 256 Res.push_back("-fcuda-is-device"); 257 if (!Opts.CXAAtExit) 258 Res.push_back("-fno-use-cxa-atexit"); 259 if (Opts.CXXCtorDtorAliases) 260 Res.push_back("-mconstructor-aliases"); 261 if (Opts.ObjCAutoRefCountExceptions) 262 Res.push_back("-fobjc-arc-eh"); 263 if (!Opts.DebugPass.empty()) { 264 Res.push_back("-mdebug-pass", Opts.DebugPass); 265 } 266 if (Opts.DisableFPElim) 267 Res.push_back("-mdisable-fp-elim"); 268 if (!Opts.FloatABI.empty()) 269 Res.push_back("-mfloat-abi", Opts.FloatABI); 270 if (!Opts.LimitFloatPrecision.empty()) 271 Res.push_back("-mlimit-float-precision", Opts.LimitFloatPrecision); 272 if (Opts.NoZeroInitializedInBSS) 273 Res.push_back("-mno-zero-initialized-bss"); 274 switch (Opts.getObjCDispatchMethod()) { 275 case CodeGenOptions::Legacy: 276 break; 277 case CodeGenOptions::Mixed: 278 Res.push_back("-fobjc-dispatch-method=mixed"); 279 break; 280 case CodeGenOptions::NonLegacy: 281 Res.push_back("-fobjc-dispatch-method=non-legacy"); 282 break; 283 } 284 if (Opts.BoundsChecking > 0) 285 Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking)); 286 if (Opts.NumRegisterParameters) 287 Res.push_back("-mregparm", llvm::utostr(Opts.NumRegisterParameters)); 288 if (Opts.NoGlobalMerge) 289 Res.push_back("-mno-global-merge"); 290 if (Opts.NoExecStack) 291 Res.push_back("-mnoexecstack"); 292 if (Opts.RelaxAll) 293 Res.push_back("-mrelax-all"); 294 if (Opts.SaveTempLabels) 295 Res.push_back("-msave-temp-labels"); 296 if (Opts.NoDwarf2CFIAsm) 297 Res.push_back("-fno-dwarf2-cfi-asm"); 298 if (Opts.NoDwarfDirectoryAsm) 299 Res.push_back("-fno-dwarf-directory-asm"); 300 if (Opts.SoftFloat) 301 Res.push_back("-msoft-float"); 302 if (Opts.StrictEnums) 303 Res.push_back("-fstrict-enums"); 304 if (Opts.UnwindTables) 305 Res.push_back("-munwind-tables"); 306 if (Opts.RelocationModel != "pic") 307 Res.push_back("-mrelocation-model", Opts.RelocationModel); 308 if (!Opts.VerifyModule) 309 Res.push_back("-disable-llvm-verifier"); 310 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) 311 Res.push_back("-backend-option", Opts.BackendOptions[i]); 312 313 switch (Opts.DefaultTLSModel) { 314 case CodeGenOptions::GeneralDynamicTLSModel: 315 break; 316 case CodeGenOptions::LocalDynamicTLSModel: 317 Res.push_back("-ftls-model=local-dynamic"); 318 break; 319 case CodeGenOptions::InitialExecTLSModel: 320 Res.push_back("-ftls-model=initial-exec"); 321 break; 322 case CodeGenOptions::LocalExecTLSModel: 323 Res.push_back("-ftls-model=local-exec"); 324 break; 325 } 326 } 327 328 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 329 ToArgsList &Res) { 330 if (Opts.IncludeSystemHeaders) 331 Res.push_back("-sys-header-deps"); 332 if (Opts.ShowHeaderIncludes) 333 Res.push_back("-H"); 334 if (!Opts.HeaderIncludeOutputFile.empty()) 335 Res.push_back("-header-include-file", Opts.HeaderIncludeOutputFile); 336 if (Opts.UsePhonyTargets) 337 Res.push_back("-MP"); 338 if (!Opts.OutputFile.empty()) 339 Res.push_back("-dependency-file", Opts.OutputFile); 340 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) 341 Res.push_back("-MT", Opts.Targets[i]); 342 } 343 344 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 345 ToArgsList &Res) { 346 if (Opts.IgnoreWarnings) 347 Res.push_back("-w"); 348 if (Opts.NoRewriteMacros) 349 Res.push_back("-Wno-rewrite-macros"); 350 if (Opts.Pedantic) 351 Res.push_back("-pedantic"); 352 if (Opts.PedanticErrors) 353 Res.push_back("-pedantic-errors"); 354 if (!Opts.ShowColumn) 355 Res.push_back("-fno-show-column"); 356 if (!Opts.ShowLocation) 357 Res.push_back("-fno-show-source-location"); 358 if (!Opts.ShowCarets) 359 Res.push_back("-fno-caret-diagnostics"); 360 if (!Opts.ShowFixits) 361 Res.push_back("-fno-diagnostics-fixit-info"); 362 if (Opts.ShowSourceRanges) 363 Res.push_back("-fdiagnostics-print-source-range-info"); 364 if (Opts.ShowParseableFixits) 365 Res.push_back("-fdiagnostics-parseable-fixits"); 366 if (Opts.ShowColors) 367 Res.push_back("-fcolor-diagnostics"); 368 if (Opts.VerifyDiagnostics) 369 Res.push_back("-verify"); 370 if (Opts.ShowOptionNames) 371 Res.push_back("-fdiagnostics-show-option"); 372 if (Opts.ShowCategories == 1) 373 Res.push_back("-fdiagnostics-show-category=id"); 374 else if (Opts.ShowCategories == 2) 375 Res.push_back("-fdiagnostics-show-category=name"); 376 switch (Opts.Format) { 377 case DiagnosticOptions::Clang: 378 Res.push_back("-fdiagnostics-format=clang"); break; 379 case DiagnosticOptions::Msvc: 380 Res.push_back("-fdiagnostics-format=msvc"); break; 381 case DiagnosticOptions::Vi: 382 Res.push_back("-fdiagnostics-format=vi"); break; 383 } 384 if (Opts.ErrorLimit) 385 Res.push_back("-ferror-limit", llvm::utostr(Opts.ErrorLimit)); 386 if (!Opts.DiagnosticLogFile.empty()) 387 Res.push_back("-diagnostic-log-file", Opts.DiagnosticLogFile); 388 if (Opts.MacroBacktraceLimit 389 != DiagnosticOptions::DefaultMacroBacktraceLimit) 390 Res.push_back("-fmacro-backtrace-limit", 391 llvm::utostr(Opts.MacroBacktraceLimit)); 392 if (Opts.TemplateBacktraceLimit 393 != DiagnosticOptions::DefaultTemplateBacktraceLimit) 394 Res.push_back("-ftemplate-backtrace-limit", 395 llvm::utostr(Opts.TemplateBacktraceLimit)); 396 if (Opts.ConstexprBacktraceLimit 397 != DiagnosticOptions::DefaultConstexprBacktraceLimit) 398 Res.push_back("-fconstexpr-backtrace-limit", 399 llvm::utostr(Opts.ConstexprBacktraceLimit)); 400 401 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) 402 Res.push_back("-ftabstop", llvm::utostr(Opts.TabStop)); 403 if (Opts.MessageLength) 404 Res.push_back("-fmessage-length", llvm::utostr(Opts.MessageLength)); 405 if (!Opts.DumpBuildInformation.empty()) 406 Res.push_back("-dump-build-information", Opts.DumpBuildInformation); 407 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 408 Res.push_back("-W" + Opts.Warnings[i]); 409 } 410 411 static const char *getInputKindName(InputKind Kind) { 412 switch (Kind) { 413 case IK_None: break; 414 case IK_AST: return "ast"; 415 case IK_Asm: return "assembler-with-cpp"; 416 case IK_C: return "c"; 417 case IK_CXX: return "c++"; 418 case IK_LLVM_IR: return "ir"; 419 case IK_ObjC: return "objective-c"; 420 case IK_ObjCXX: return "objective-c++"; 421 case IK_OpenCL: return "cl"; 422 case IK_CUDA: return "cuda"; 423 case IK_PreprocessedC: return "cpp-output"; 424 case IK_PreprocessedCXX: return "c++-cpp-output"; 425 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 426 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 427 } 428 429 llvm_unreachable("Unexpected language kind!"); 430 } 431 432 static const char *getActionName(frontend::ActionKind Kind) { 433 switch (Kind) { 434 case frontend::PluginAction: 435 llvm_unreachable("Invalid kind!"); 436 437 case frontend::ASTDeclList: return "-ast-list"; 438 case frontend::ASTDump: return "-ast-dump"; 439 case frontend::ASTDumpXML: return "-ast-dump-xml"; 440 case frontend::ASTPrint: return "-ast-print"; 441 case frontend::ASTView: return "-ast-view"; 442 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 443 case frontend::DumpTokens: return "-dump-tokens"; 444 case frontend::EmitAssembly: return "-S"; 445 case frontend::EmitBC: return "-emit-llvm-bc"; 446 case frontend::EmitHTML: return "-emit-html"; 447 case frontend::EmitLLVM: return "-emit-llvm"; 448 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 449 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 450 case frontend::EmitObj: return "-emit-obj"; 451 case frontend::FixIt: return "-fixit"; 452 case frontend::GenerateModule: return "-emit-module"; 453 case frontend::GeneratePCH: return "-emit-pch"; 454 case frontend::GeneratePTH: return "-emit-pth"; 455 case frontend::InitOnly: return "-init-only"; 456 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 457 case frontend::PrintDeclContext: return "-print-decl-contexts"; 458 case frontend::PrintPreamble: return "-print-preamble"; 459 case frontend::PrintPreprocessedInput: return "-E"; 460 case frontend::RewriteMacros: return "-rewrite-macros"; 461 case frontend::RewriteObjC: return "-rewrite-objc"; 462 case frontend::RewriteTest: return "-rewrite-test"; 463 case frontend::RunAnalysis: return "-analyze"; 464 case frontend::MigrateSource: return "-migrate"; 465 case frontend::RunPreprocessorOnly: return "-Eonly"; 466 } 467 468 llvm_unreachable("Unexpected language kind!"); 469 } 470 471 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, ToArgsList &Res){ 472 if (!Opts.WorkingDir.empty()) 473 Res.push_back("-working-directory", Opts.WorkingDir); 474 } 475 476 static void CodeCompleteOptionsToArgs(const CodeCompleteOptions &Opts, 477 ToArgsList &Res) { 478 if (Opts.IncludeMacros) 479 Res.push_back("-code-completion-macros"); 480 if (Opts.IncludeCodePatterns) 481 Res.push_back("-code-completion-patterns"); 482 if (!Opts.IncludeGlobals) 483 Res.push_back("-no-code-completion-globals"); 484 if (Opts.IncludeBriefComments) 485 Res.push_back("-code-completion-brief-comments"); 486 } 487 488 static void FrontendOptsToArgs(const FrontendOptions &Opts, ToArgsList &Res) { 489 if (Opts.DisableFree) 490 Res.push_back("-disable-free"); 491 if (Opts.RelocatablePCH) 492 Res.push_back("-relocatable-pch"); 493 if (Opts.ShowHelp) 494 Res.push_back("-help"); 495 if (Opts.ShowStats) 496 Res.push_back("-print-stats"); 497 if (Opts.ShowTimers) 498 Res.push_back("-ftime-report"); 499 if (Opts.ShowVersion) 500 Res.push_back("-version"); 501 if (Opts.FixWhatYouCan) 502 Res.push_back("-fix-what-you-can"); 503 if (Opts.FixOnlyWarnings) 504 Res.push_back("-fix-only-warnings"); 505 if (Opts.FixAndRecompile) 506 Res.push_back("-fixit-recompile"); 507 if (Opts.FixToTemporaries) 508 Res.push_back("-fixit-to-temporary"); 509 switch (Opts.ARCMTAction) { 510 case FrontendOptions::ARCMT_None: 511 break; 512 case FrontendOptions::ARCMT_Check: 513 Res.push_back("-arcmt-check"); 514 break; 515 case FrontendOptions::ARCMT_Modify: 516 Res.push_back("-arcmt-modify"); 517 break; 518 case FrontendOptions::ARCMT_Migrate: 519 Res.push_back("-arcmt-migrate"); 520 break; 521 } 522 CodeCompleteOptionsToArgs(Opts.CodeCompleteOpts, Res); 523 if (!Opts.MTMigrateDir.empty()) 524 Res.push_back("-mt-migrate-directory", Opts.MTMigrateDir); 525 if (!Opts.ARCMTMigrateReportOut.empty()) 526 Res.push_back("-arcmt-migrate-report-output", Opts.ARCMTMigrateReportOut); 527 if (Opts.ARCMTMigrateEmitARCErrors) 528 Res.push_back("-arcmt-migrate-emit-errors"); 529 530 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Literals) 531 Res.push_back("-objcmt-migrate-literals"); 532 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting) 533 Res.push_back("-objcmt-migrate-subscripting"); 534 535 bool NeedLang = false; 536 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 537 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].File) != 538 Opts.Inputs[i].Kind) 539 NeedLang = true; 540 if (NeedLang) 541 Res.push_back("-x", getInputKindName(Opts.Inputs[0].Kind)); 542 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 543 assert((!NeedLang || Opts.Inputs[i].Kind == Opts.Inputs[0].Kind) && 544 "Unable to represent this input vector!"); 545 Res.push_back(Opts.Inputs[i].File); 546 } 547 548 if (!Opts.OutputFile.empty()) 549 Res.push_back("-o", Opts.OutputFile); 550 if (!Opts.CodeCompletionAt.FileName.empty()) 551 Res.push_back("-code-completion-at", 552 Opts.CodeCompletionAt.FileName + ":" + 553 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 554 llvm::utostr(Opts.CodeCompletionAt.Column)); 555 if (Opts.ProgramAction != frontend::PluginAction) 556 Res.push_back(getActionName(Opts.ProgramAction)); 557 if (!Opts.ActionName.empty()) { 558 Res.push_back("-plugin", Opts.ActionName); 559 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) 560 Res.push_back("-plugin-arg-" + Opts.ActionName, Opts.PluginArgs[i]); 561 } 562 if (!Opts.ASTDumpFilter.empty()) 563 Res.push_back("-ast-dump-filter", Opts.ASTDumpFilter); 564 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) 565 Res.push_back("-load", Opts.Plugins[i]); 566 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 567 Res.push_back("-add-plugin", Opts.AddPluginActions[i]); 568 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai) 569 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i], 570 Opts.AddPluginArgs[i][ai]); 571 } 572 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) 573 Res.push_back("-ast-merge", Opts.ASTMergeFiles[i]); 574 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) 575 Res.push_back("-mllvm", Opts.LLVMArgs[i]); 576 if (!Opts.OverrideRecordLayoutsFile.empty()) 577 Res.push_back("-foverride-record-layout=" + Opts.OverrideRecordLayoutsFile); 578 } 579 580 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 581 ToArgsList &Res) { 582 if (Opts.Sysroot != "/") { 583 Res.push_back("-isysroot"); 584 Res.push_back(Opts.Sysroot); 585 } 586 587 /// User specified include entries. 588 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 589 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 590 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 591 llvm::report_fatal_error("Invalid option set!"); 592 if (E.IsUserSupplied) { 593 switch (E.Group) { 594 case frontend::After: 595 Res.push_back("-idirafter"); 596 break; 597 598 case frontend::Quoted: 599 Res.push_back("-iquote"); 600 break; 601 602 case frontend::System: 603 Res.push_back("-isystem"); 604 break; 605 606 case frontend::IndexHeaderMap: 607 Res.push_back("-index-header-map"); 608 Res.push_back(E.IsFramework? "-F" : "-I"); 609 break; 610 611 case frontend::CSystem: 612 Res.push_back("-c-isystem"); 613 break; 614 615 case frontend::CXXSystem: 616 Res.push_back("-cxx-isystem"); 617 break; 618 619 case frontend::ObjCSystem: 620 Res.push_back("-objc-isystem"); 621 break; 622 623 case frontend::ObjCXXSystem: 624 Res.push_back("-objcxx-isystem"); 625 break; 626 627 case frontend::Angled: 628 Res.push_back(E.IsFramework ? "-F" : "-I"); 629 break; 630 } 631 } else { 632 if (E.IsInternal) { 633 assert(E.Group == frontend::System && "Unexpected header search group"); 634 if (E.ImplicitExternC) 635 Res.push_back("-internal-externc-isystem"); 636 else 637 Res.push_back("-internal-isystem"); 638 } else { 639 if (E.Group != frontend::Angled && E.Group != frontend::System) 640 llvm::report_fatal_error("Invalid option set!"); 641 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 642 "-iwithprefix"); 643 } 644 } 645 Res.push_back(E.Path); 646 } 647 648 /// User-specified system header prefixes. 649 for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) { 650 if (Opts.SystemHeaderPrefixes[i].IsSystemHeader) 651 Res.push_back("-isystem-prefix"); 652 else 653 Res.push_back("-ino-system-prefix"); 654 655 Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix); 656 } 657 658 if (!Opts.ResourceDir.empty()) 659 Res.push_back("-resource-dir", Opts.ResourceDir); 660 if (!Opts.ModuleCachePath.empty()) 661 Res.push_back("-fmodule-cache-path", Opts.ModuleCachePath); 662 if (!Opts.UseStandardSystemIncludes) 663 Res.push_back("-nostdsysteminc"); 664 if (!Opts.UseStandardCXXIncludes) 665 Res.push_back("-nostdinc++"); 666 if (Opts.UseLibcxx) 667 Res.push_back("-stdlib=libc++"); 668 if (Opts.Verbose) 669 Res.push_back("-v"); 670 } 671 672 static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) { 673 LangOptions DefaultLangOpts; 674 675 // FIXME: Need to set -std to get all the implicit options. 676 677 // FIXME: We want to only pass options relative to the defaults, which 678 // requires constructing a target. :( 679 // 680 // It would be better to push the all target specific choices into the driver, 681 // so that everything below that was more uniform. 682 683 if (Opts.Trigraphs) 684 Res.push_back("-trigraphs"); 685 // Implicit based on the input kind: 686 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 687 // Implicit based on the input language standard: 688 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 689 if (Opts.DollarIdents) 690 Res.push_back("-fdollars-in-identifiers"); 691 if (Opts.GNUMode && !Opts.GNUKeywords) 692 Res.push_back("-fno-gnu-keywords"); 693 if (!Opts.GNUMode && Opts.GNUKeywords) 694 Res.push_back("-fgnu-keywords"); 695 if (Opts.MicrosoftExt) 696 Res.push_back("-fms-extensions"); 697 if (Opts.MicrosoftMode) 698 Res.push_back("-fms-compatibility"); 699 if (Opts.MSCVersion != 0) 700 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion)); 701 if (Opts.Borland) 702 Res.push_back("-fborland-extensions"); 703 if (Opts.ObjCDefaultSynthProperties) 704 Res.push_back("-fobjc-default-synthesize-properties"); 705 // NoInline is implicit. 706 if (!Opts.CXXOperatorNames) 707 Res.push_back("-fno-operator-names"); 708 if (Opts.PascalStrings) 709 Res.push_back("-fpascal-strings"); 710 if (Opts.CatchUndefined) 711 Res.push_back("-fcatch-undefined-behavior"); 712 if (Opts.AddressSanitizer) 713 Res.push_back("-faddress-sanitizer"); 714 if (Opts.ThreadSanitizer) 715 Res.push_back("-fthread-sanitizer"); 716 if (Opts.WritableStrings) 717 Res.push_back("-fwritable-strings"); 718 if (Opts.ConstStrings) 719 Res.push_back("-fconst-strings"); 720 if (!Opts.LaxVectorConversions) 721 Res.push_back("-fno-lax-vector-conversions"); 722 if (Opts.AltiVec) 723 Res.push_back("-faltivec"); 724 if (Opts.Exceptions) 725 Res.push_back("-fexceptions"); 726 if (Opts.ObjCExceptions) 727 Res.push_back("-fobjc-exceptions"); 728 if (Opts.CXXExceptions) 729 Res.push_back("-fcxx-exceptions"); 730 if (Opts.SjLjExceptions) 731 Res.push_back("-fsjlj-exceptions"); 732 if (Opts.TraditionalCPP) 733 Res.push_back("-traditional-cpp"); 734 if (!Opts.RTTI) 735 Res.push_back("-fno-rtti"); 736 if (Opts.MSBitfields) 737 Res.push_back("-mms-bitfields"); 738 if (Opts.Freestanding) 739 Res.push_back("-ffreestanding"); 740 if (Opts.NoBuiltin) 741 Res.push_back("-fno-builtin"); 742 if (!Opts.AssumeSaneOperatorNew) 743 Res.push_back("-fno-assume-sane-operator-new"); 744 if (!Opts.ThreadsafeStatics) 745 Res.push_back("-fno-threadsafe-statics"); 746 if (Opts.POSIXThreads) 747 Res.push_back("-pthread"); 748 if (Opts.Blocks) 749 Res.push_back("-fblocks"); 750 if (Opts.BlocksRuntimeOptional) 751 Res.push_back("-fblocks-runtime-optional"); 752 if (Opts.Modules) 753 Res.push_back("-fmodules"); 754 if (Opts.EmitAllDecls) 755 Res.push_back("-femit-all-decls"); 756 if (Opts.MathErrno) 757 Res.push_back("-fmath-errno"); 758 switch (Opts.getSignedOverflowBehavior()) { 759 case LangOptions::SOB_Undefined: break; 760 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 761 case LangOptions::SOB_Trapping: 762 Res.push_back("-ftrapv"); 763 if (!Opts.OverflowHandler.empty()) 764 Res.push_back("-ftrapv-handler", Opts.OverflowHandler); 765 break; 766 } 767 switch (Opts.getFPContractMode()) { 768 case LangOptions::FPC_Off: Res.push_back("-ffp-contract=off"); break; 769 case LangOptions::FPC_On: Res.push_back("-ffp-contract=on"); break; 770 case LangOptions::FPC_Fast: Res.push_back("-ffp-contract=fast"); break; 771 } 772 if (Opts.HeinousExtensions) 773 Res.push_back("-fheinous-gnu-extensions"); 774 // Optimize is implicit. 775 // OptimizeSize is implicit. 776 if (Opts.FastMath) 777 Res.push_back("-ffast-math"); 778 if (Opts.Static) 779 Res.push_back("-static-define"); 780 if (Opts.DumpRecordLayoutsSimple) 781 Res.push_back("-fdump-record-layouts-simple"); 782 else if (Opts.DumpRecordLayouts) 783 Res.push_back("-fdump-record-layouts"); 784 if (Opts.DumpVTableLayouts) 785 Res.push_back("-fdump-vtable-layouts"); 786 if (Opts.NoBitFieldTypeAlign) 787 Res.push_back("-fno-bitfield-type-alignment"); 788 if (Opts.PICLevel) 789 Res.push_back("-pic-level", llvm::utostr(Opts.PICLevel)); 790 if (Opts.PIELevel) 791 Res.push_back("-pie-level", llvm::utostr(Opts.PIELevel)); 792 if (Opts.ObjCGCBitmapPrint) 793 Res.push_back("-print-ivar-layout"); 794 if (Opts.NoConstantCFStrings) 795 Res.push_back("-fno-constant-cfstrings"); 796 if (!Opts.AccessControl) 797 Res.push_back("-fno-access-control"); 798 if (!Opts.CharIsSigned) 799 Res.push_back("-fno-signed-char"); 800 if (Opts.ShortWChar) 801 Res.push_back("-fshort-wchar"); 802 if (!Opts.ElideConstructors) 803 Res.push_back("-fno-elide-constructors"); 804 if (Opts.getGC() != LangOptions::NonGC) { 805 if (Opts.getGC() == LangOptions::HybridGC) { 806 Res.push_back("-fobjc-gc"); 807 } else { 808 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!"); 809 Res.push_back("-fobjc-gc-only"); 810 } 811 } 812 Res.push_back("-fobjc-runtime=" + Opts.ObjCRuntime.getAsString()); 813 if (Opts.ObjCAutoRefCount) 814 Res.push_back("-fobjc-arc"); 815 if (Opts.ObjCARCWeak) 816 Res.push_back("-fobjc-runtime-has-weak"); 817 if (!Opts.ObjCInferRelatedResultType) 818 Res.push_back("-fno-objc-infer-related-result-type"); 819 820 if (Opts.AppleKext) 821 Res.push_back("-fapple-kext"); 822 823 if (Opts.getVisibilityMode() != DefaultVisibility) { 824 Res.push_back("-fvisibility"); 825 if (Opts.getVisibilityMode() == HiddenVisibility) { 826 Res.push_back("hidden"); 827 } else { 828 assert(Opts.getVisibilityMode() == ProtectedVisibility && 829 "Invalid visibility!"); 830 Res.push_back("protected"); 831 } 832 } 833 if (Opts.InlineVisibilityHidden) 834 Res.push_back("-fvisibility-inlines-hidden"); 835 836 if (Opts.getStackProtector() != 0) 837 Res.push_back("-stack-protector", llvm::utostr(Opts.getStackProtector())); 838 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) 839 Res.push_back("-ftemplate-depth", llvm::utostr(Opts.InstantiationDepth)); 840 if (Opts.ConstexprCallDepth != DefaultLangOpts.ConstexprCallDepth) 841 Res.push_back("-fconstexpr-depth", llvm::utostr(Opts.ConstexprCallDepth)); 842 if (!Opts.ObjCConstantStringClass.empty()) 843 Res.push_back("-fconstant-string-class", Opts.ObjCConstantStringClass); 844 if (Opts.FakeAddressSpaceMap) 845 Res.push_back("-ffake-address-space-map"); 846 if (Opts.ParseUnknownAnytype) 847 Res.push_back("-funknown-anytype"); 848 if (Opts.DebuggerSupport) 849 Res.push_back("-fdebugger-support"); 850 if (Opts.DebuggerCastResultToId) 851 Res.push_back("-fdebugger-cast-result-to-id"); 852 if (Opts.DebuggerObjCLiteral) 853 Res.push_back("-fdebugger-objc-literal"); 854 if (Opts.DelayedTemplateParsing) 855 Res.push_back("-fdelayed-template-parsing"); 856 if (Opts.Deprecated) 857 Res.push_back("-fdeprecated-macro"); 858 if (Opts.ApplePragmaPack) 859 Res.push_back("-fapple-pragma-pack"); 860 if (!Opts.CurrentModule.empty()) 861 Res.push_back("-fmodule-name=" + Opts.CurrentModule); 862 } 863 864 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 865 ToArgsList &Res) { 866 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 867 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 868 Opts.Macros[i].first); 869 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 870 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 871 Res.push_back("-include", Opts.Includes[i]); 872 } 873 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) 874 Res.push_back("-imacros", Opts.MacroIncludes[i]); 875 if (!Opts.UsePredefines) 876 Res.push_back("-undef"); 877 if (Opts.DetailedRecord) 878 Res.push_back("-detailed-preprocessing-record"); 879 if (!Opts.ImplicitPCHInclude.empty()) 880 Res.push_back("-include-pch", Opts.ImplicitPCHInclude); 881 if (!Opts.ImplicitPTHInclude.empty()) 882 Res.push_back("-include-pth", Opts.ImplicitPTHInclude); 883 if (!Opts.TokenCache.empty()) { 884 if (Opts.ImplicitPTHInclude.empty()) 885 Res.push_back("-token-cache", Opts.TokenCache); 886 else 887 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 888 "Unsupported option combination!"); 889 } 890 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i) 891 Res.push_back("-chain-include", Opts.ChainedIncludes[i]); 892 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 893 Res.push_back("-remap-file", Opts.RemappedFiles[i].first + ";" + 894 Opts.RemappedFiles[i].second); 895 } 896 } 897 898 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 899 ToArgsList &Res) { 900 if (!Opts.ShowCPP && !Opts.ShowMacros) 901 llvm::report_fatal_error("Invalid option combination!"); 902 903 if (Opts.ShowCPP && Opts.ShowMacros) 904 Res.push_back("-dD"); 905 else if (!Opts.ShowCPP && Opts.ShowMacros) 906 Res.push_back("-dM"); 907 908 if (!Opts.ShowLineMarkers) 909 Res.push_back("-P"); 910 if (Opts.ShowComments) 911 Res.push_back("-C"); 912 if (Opts.ShowMacroComments) 913 Res.push_back("-CC"); 914 } 915 916 static void TargetOptsToArgs(const TargetOptions &Opts, 917 ToArgsList &Res) { 918 Res.push_back("-triple"); 919 Res.push_back(Opts.Triple); 920 if (!Opts.CPU.empty()) 921 Res.push_back("-target-cpu", Opts.CPU); 922 if (!Opts.ABI.empty()) 923 Res.push_back("-target-abi", Opts.ABI); 924 if (!Opts.LinkerVersion.empty()) 925 Res.push_back("-target-linker-version", Opts.LinkerVersion); 926 if (!Opts.CXXABI.empty()) 927 Res.push_back("-cxx-abi", Opts.CXXABI); 928 for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) 929 Res.push_back("-target-feature", Opts.Features[i]); 930 } 931 932 void CompilerInvocation::toArgs(std::vector<std::string> &Res) const { 933 ToArgsList List(Res); 934 AnalyzerOptsToArgs(getAnalyzerOpts(), List); 935 CodeGenOptsToArgs(getCodeGenOpts(), List); 936 DependencyOutputOptsToArgs(getDependencyOutputOpts(), List); 937 DiagnosticOptsToArgs(getDiagnosticOpts(), List); 938 FileSystemOptsToArgs(getFileSystemOpts(), List); 939 FrontendOptsToArgs(getFrontendOpts(), List); 940 HeaderSearchOptsToArgs(getHeaderSearchOpts(), List); 941 LangOptsToArgs(*getLangOpts(), List); 942 PreprocessorOptsToArgs(getPreprocessorOpts(), List); 943 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), List); 944 TargetOptsToArgs(getTargetOpts(), List); 945 } 946 947 //===----------------------------------------------------------------------===// 948 // Deserialization (to args) 949 //===----------------------------------------------------------------------===// 950 951 using namespace clang::driver; 952 using namespace clang::driver::options; 953 954 // 955 956 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 957 DiagnosticsEngine &Diags) { 958 unsigned DefaultOpt = 0; 959 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 960 DefaultOpt = 2; 961 962 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 963 if (A->getOption().matches(options::OPT_O0)) 964 return 0; 965 966 assert (A->getOption().matches(options::OPT_O)); 967 968 llvm::StringRef S(A->getValue(Args)); 969 if (S == "s" || S == "z" || S.empty()) 970 return 2; 971 972 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 973 } 974 975 return DefaultOpt; 976 } 977 978 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 979 DiagnosticsEngine &Diags) { 980 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 981 if (A->getOption().matches(options::OPT_O)) { 982 switch (A->getValue(Args)[0]) { 983 default: 984 return 0; 985 case 's': 986 return 1; 987 case 'z': 988 return 2; 989 } 990 } 991 } 992 return 0; 993 } 994 995 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 996 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 997 E = Args.filtered_end(); I != E; ++I) { 998 Arg *A = *I; 999 // If the argument is a pure flag, add its name (minus the "-W" at the beginning) 1000 // to the warning list. Else, add its value (for the OPT_W case). 1001 if (A->getOption().getKind() == Option::FlagClass) { 1002 Warnings.push_back(A->getOption().getName().substr(2)); 1003 } else { 1004 for (unsigned Idx = 0, End = A->getNumValues(); 1005 Idx < End; ++Idx) { 1006 StringRef V = A->getValue(Args, Idx); 1007 // "-Wl," and such are not warning options. 1008 // FIXME: Should be handled by putting these in separate flags. 1009 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 1010 continue; 1011 1012 Warnings.push_back(V); 1013 } 1014 } 1015 } 1016 } 1017 1018 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1019 DiagnosticsEngine &Diags) { 1020 using namespace options; 1021 bool Success = true; 1022 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 1023 StringRef Name = A->getValue(Args); 1024 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 1025 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 1026 .Case(CMDFLAG, NAME##Model) 1027 #include "clang/Frontend/Analyses.def" 1028 .Default(NumStores); 1029 if (Value == NumStores) { 1030 Diags.Report(diag::err_drv_invalid_value) 1031 << A->getAsString(Args) << Name; 1032 Success = false; 1033 } else { 1034 Opts.AnalysisStoreOpt = Value; 1035 } 1036 } 1037 1038 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1039 StringRef Name = A->getValue(Args); 1040 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1041 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1042 .Case(CMDFLAG, NAME##Model) 1043 #include "clang/Frontend/Analyses.def" 1044 .Default(NumConstraints); 1045 if (Value == NumConstraints) { 1046 Diags.Report(diag::err_drv_invalid_value) 1047 << A->getAsString(Args) << Name; 1048 Success = false; 1049 } else { 1050 Opts.AnalysisConstraintsOpt = Value; 1051 } 1052 } 1053 1054 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1055 StringRef Name = A->getValue(Args); 1056 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1057 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 1058 .Case(CMDFLAG, PD_##NAME) 1059 #include "clang/Frontend/Analyses.def" 1060 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1061 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1062 Diags.Report(diag::err_drv_invalid_value) 1063 << A->getAsString(Args) << Name; 1064 Success = false; 1065 } else { 1066 Opts.AnalysisDiagOpt = Value; 1067 } 1068 } 1069 1070 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1071 StringRef Name = A->getValue(Args); 1072 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1073 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1074 .Case(CMDFLAG, NAME) 1075 #include "clang/Frontend/Analyses.def" 1076 .Default(NumPurgeModes); 1077 if (Value == NumPurgeModes) { 1078 Diags.Report(diag::err_drv_invalid_value) 1079 << A->getAsString(Args) << Name; 1080 Success = false; 1081 } else { 1082 Opts.AnalysisPurgeOpt = Value; 1083 } 1084 } 1085 1086 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 1087 StringRef Name = A->getValue(Args); 1088 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 1089 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 1090 .Case(CMDFLAG, NAME) 1091 #include "clang/Frontend/Analyses.def" 1092 .Default(NumIPAModes); 1093 if (Value == NumIPAModes) { 1094 Diags.Report(diag::err_drv_invalid_value) 1095 << A->getAsString(Args) << Name; 1096 Success = false; 1097 } else { 1098 Opts.IPAMode = Value; 1099 } 1100 } 1101 1102 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1103 StringRef Name = A->getValue(Args); 1104 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1105 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1106 .Case(CMDFLAG, NAME) 1107 #include "clang/Frontend/Analyses.def" 1108 .Default(NumInliningModes); 1109 if (Value == NumInliningModes) { 1110 Diags.Report(diag::err_drv_invalid_value) 1111 << A->getAsString(Args) << Name; 1112 Success = false; 1113 } else { 1114 Opts.InliningMode = Value; 1115 } 1116 } 1117 1118 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 1119 Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 1120 Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 1121 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 1122 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 1123 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 1124 Opts.AnalyzeNestedBlocks = 1125 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 1126 Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume); 1127 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 1128 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 1129 Opts.CFGAddImplicitDtors = Args.hasArg(OPT_analysis_CFGAddImplicitDtors); 1130 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 1131 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 1132 Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 1133 Opts.EagerlyTrimEGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph); 1134 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 1135 Opts.InlineMaxStackDepth = 1136 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 1137 Opts.InlineMaxStackDepth, Diags); 1138 Opts.InlineMaxFunctionSize = 1139 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 1140 Opts.InlineMaxFunctionSize, Diags); 1141 1142 Opts.CheckersControlList.clear(); 1143 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 1144 OPT_analyzer_disable_checker), 1145 ie = Args.filtered_end(); it != ie; ++it) { 1146 const Arg *A = *it; 1147 A->claim(); 1148 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 1149 // We can have a list of comma separated checker names, e.g: 1150 // '-analyzer-checker=cocoa,unix' 1151 StringRef checkerList = A->getValue(Args); 1152 SmallVector<StringRef, 4> checkers; 1153 checkerList.split(checkers, ","); 1154 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 1155 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 1156 } 1157 1158 return Success; 1159 } 1160 1161 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 1162 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 1163 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 1164 return true; 1165 } 1166 1167 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1168 DiagnosticsEngine &Diags) { 1169 using namespace options; 1170 bool Success = true; 1171 1172 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 1173 if (OptLevel > 3) { 1174 Diags.Report(diag::err_drv_invalid_value) 1175 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 1176 OptLevel = 3; 1177 Success = false; 1178 } 1179 Opts.OptimizationLevel = OptLevel; 1180 1181 // We must always run at least the always inlining pass. 1182 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 1183 : CodeGenOptions::OnlyAlwaysInlining; 1184 // -fno-inline-functions overrides OptimizationLevel > 1. 1185 Opts.NoInline = Args.hasArg(OPT_fno_inline); 1186 Opts.Inlining = Args.hasArg(OPT_fno_inline_functions) ? 1187 CodeGenOptions::OnlyAlwaysInlining : Opts.Inlining; 1188 1189 if (Args.hasArg(OPT_gline_tables_only)) { 1190 Opts.DebugInfo = CodeGenOptions::DebugLineTablesOnly; 1191 } else if (Args.hasArg(OPT_g_Flag)) { 1192 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 1193 Opts.DebugInfo = CodeGenOptions::LimitedDebugInfo; 1194 else 1195 Opts.DebugInfo = CodeGenOptions::FullDebugInfo; 1196 } 1197 1198 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 1199 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 1200 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 1201 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 1202 OPT_fuse_register_sized_bitfield_access); 1203 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 1204 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 1205 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 1206 Opts.NoCommon = Args.hasArg(OPT_fno_common); 1207 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 1208 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 1209 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1210 Args.hasArg(OPT_ffreestanding)); 1211 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 1212 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 1213 1214 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 1215 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1216 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 1217 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1218 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1219 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 1220 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 1221 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 1222 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1223 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 1224 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 1225 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 1226 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 1227 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 1228 Args.hasArg(OPT_cl_finite_math_only)|| 1229 Args.hasArg(OPT_cl_fast_relaxed_math)); 1230 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 1231 Args.hasArg(OPT_cl_finite_math_only)|| 1232 Args.hasArg(OPT_cl_fast_relaxed_math)); 1233 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 1234 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 1235 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 1236 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 1237 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1238 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1239 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 1240 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1241 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 1242 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1243 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1244 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1245 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1246 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1247 Args.hasArg(OPT_cl_fast_relaxed_math); 1248 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1249 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 1250 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 1251 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 1252 Diags); 1253 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 1254 1255 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1256 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1257 1258 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 1259 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1260 1261 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1262 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1263 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1264 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1265 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1266 Opts.EmitMicrosoftInlineAsm = Args.hasArg(OPT_fenable_experimental_ms_inline_asm); 1267 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 1268 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1269 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 1270 Opts.SSPBufferSize = 1271 Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags); 1272 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1273 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1274 StringRef Val = A->getValue(Args); 1275 Val.getAsInteger(10, Opts.StackAlignment); 1276 } 1277 1278 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1279 StringRef Name = A->getValue(Args); 1280 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1281 .Case("legacy", CodeGenOptions::Legacy) 1282 .Case("non-legacy", CodeGenOptions::NonLegacy) 1283 .Case("mixed", CodeGenOptions::Mixed) 1284 .Default(~0U); 1285 if (Method == ~0U) { 1286 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1287 Success = false; 1288 } else { 1289 Opts.ObjCDispatchMethod = Method; 1290 } 1291 } 1292 1293 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1294 StringRef Name = A->getValue(Args); 1295 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1296 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1297 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1298 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1299 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1300 .Default(~0U); 1301 if (Model == ~0U) { 1302 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1303 Success = false; 1304 } else { 1305 Opts.DefaultTLSModel = static_cast<CodeGenOptions::TLSModel>(Model); 1306 } 1307 } 1308 1309 return Success; 1310 } 1311 1312 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1313 ArgList &Args) { 1314 using namespace options; 1315 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1316 Opts.Targets = Args.getAllArgValues(OPT_MT); 1317 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1318 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1319 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1320 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1321 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1322 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1323 } 1324 1325 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1326 DiagnosticsEngine *Diags) { 1327 using namespace options; 1328 bool Success = true; 1329 1330 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1331 Opts.DiagnosticSerializationFile = 1332 Args.getLastArgValue(OPT_diagnostic_serialized_file); 1333 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1334 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1335 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1336 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1337 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1338 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 1339 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1340 OPT_fno_show_column, 1341 /*Default=*/true); 1342 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1343 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1344 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 1345 1346 // Default behavior is to not to show note include stacks. 1347 Opts.ShowNoteIncludeStack = false; 1348 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1349 OPT_fno_diagnostics_show_note_include_stack)) 1350 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1351 Opts.ShowNoteIncludeStack = true; 1352 1353 StringRef ShowOverloads = 1354 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1355 if (ShowOverloads == "best") 1356 Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best; 1357 else if (ShowOverloads == "all") 1358 Opts.ShowOverloads = DiagnosticsEngine::Ovl_All; 1359 else { 1360 Success = false; 1361 if (Diags) 1362 Diags->Report(diag::err_drv_invalid_value) 1363 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1364 << ShowOverloads; 1365 } 1366 1367 StringRef ShowCategory = 1368 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1369 if (ShowCategory == "none") 1370 Opts.ShowCategories = 0; 1371 else if (ShowCategory == "id") 1372 Opts.ShowCategories = 1; 1373 else if (ShowCategory == "name") 1374 Opts.ShowCategories = 2; 1375 else { 1376 Success = false; 1377 if (Diags) 1378 Diags->Report(diag::err_drv_invalid_value) 1379 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1380 << ShowCategory; 1381 } 1382 1383 StringRef Format = 1384 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1385 if (Format == "clang") 1386 Opts.Format = DiagnosticOptions::Clang; 1387 else if (Format == "msvc") 1388 Opts.Format = DiagnosticOptions::Msvc; 1389 else if (Format == "vi") 1390 Opts.Format = DiagnosticOptions::Vi; 1391 else { 1392 Success = false; 1393 if (Diags) 1394 Diags->Report(diag::err_drv_invalid_value) 1395 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1396 << Format; 1397 } 1398 1399 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1400 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1401 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1402 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1403 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1404 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 1405 Opts.MacroBacktraceLimit 1406 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 1407 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1408 Opts.TemplateBacktraceLimit 1409 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 1410 DiagnosticOptions::DefaultTemplateBacktraceLimit, 1411 Diags); 1412 Opts.ConstexprBacktraceLimit 1413 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 1414 DiagnosticOptions::DefaultConstexprBacktraceLimit, 1415 Diags); 1416 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 1417 DiagnosticOptions::DefaultTabStop, Diags); 1418 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1419 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1420 if (Diags) 1421 Diags->Report(diag::warn_ignoring_ftabstop_value) 1422 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1423 } 1424 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 1425 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 1426 addWarningArgs(Args, Opts.Warnings); 1427 1428 return Success; 1429 } 1430 1431 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1432 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1433 } 1434 1435 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1436 DiagnosticsEngine &Diags) { 1437 using namespace options; 1438 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1439 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1440 switch (A->getOption().getID()) { 1441 default: 1442 llvm_unreachable("Invalid option in group!"); 1443 case OPT_ast_list: 1444 Opts.ProgramAction = frontend::ASTDeclList; break; 1445 case OPT_ast_dump: 1446 Opts.ProgramAction = frontend::ASTDump; break; 1447 case OPT_ast_dump_xml: 1448 Opts.ProgramAction = frontend::ASTDumpXML; break; 1449 case OPT_ast_print: 1450 Opts.ProgramAction = frontend::ASTPrint; break; 1451 case OPT_ast_view: 1452 Opts.ProgramAction = frontend::ASTView; break; 1453 case OPT_dump_raw_tokens: 1454 Opts.ProgramAction = frontend::DumpRawTokens; break; 1455 case OPT_dump_tokens: 1456 Opts.ProgramAction = frontend::DumpTokens; break; 1457 case OPT_S: 1458 Opts.ProgramAction = frontend::EmitAssembly; break; 1459 case OPT_emit_llvm_bc: 1460 Opts.ProgramAction = frontend::EmitBC; break; 1461 case OPT_emit_html: 1462 Opts.ProgramAction = frontend::EmitHTML; break; 1463 case OPT_emit_llvm: 1464 Opts.ProgramAction = frontend::EmitLLVM; break; 1465 case OPT_emit_llvm_only: 1466 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1467 case OPT_emit_codegen_only: 1468 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1469 case OPT_emit_obj: 1470 Opts.ProgramAction = frontend::EmitObj; break; 1471 case OPT_fixit_EQ: 1472 Opts.FixItSuffix = A->getValue(Args); 1473 // fall-through! 1474 case OPT_fixit: 1475 Opts.ProgramAction = frontend::FixIt; break; 1476 case OPT_emit_module: 1477 Opts.ProgramAction = frontend::GenerateModule; break; 1478 case OPT_emit_pch: 1479 Opts.ProgramAction = frontend::GeneratePCH; break; 1480 case OPT_emit_pth: 1481 Opts.ProgramAction = frontend::GeneratePTH; break; 1482 case OPT_init_only: 1483 Opts.ProgramAction = frontend::InitOnly; break; 1484 case OPT_fsyntax_only: 1485 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1486 case OPT_print_decl_contexts: 1487 Opts.ProgramAction = frontend::PrintDeclContext; break; 1488 case OPT_print_preamble: 1489 Opts.ProgramAction = frontend::PrintPreamble; break; 1490 case OPT_E: 1491 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1492 case OPT_rewrite_macros: 1493 Opts.ProgramAction = frontend::RewriteMacros; break; 1494 case OPT_rewrite_objc: 1495 Opts.ProgramAction = frontend::RewriteObjC; break; 1496 case OPT_rewrite_test: 1497 Opts.ProgramAction = frontend::RewriteTest; break; 1498 case OPT_analyze: 1499 Opts.ProgramAction = frontend::RunAnalysis; break; 1500 case OPT_migrate: 1501 Opts.ProgramAction = frontend::MigrateSource; break; 1502 case OPT_Eonly: 1503 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1504 } 1505 } 1506 1507 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1508 Opts.Plugins.push_back(A->getValue(Args,0)); 1509 Opts.ProgramAction = frontend::PluginAction; 1510 Opts.ActionName = A->getValue(Args); 1511 1512 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1513 end = Args.filtered_end(); it != end; ++it) { 1514 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1515 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1516 } 1517 } 1518 1519 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1520 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 1521 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 1522 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1523 end = Args.filtered_end(); it != end; ++it) { 1524 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 1525 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 1526 } 1527 } 1528 1529 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1530 Opts.CodeCompletionAt = 1531 ParsedSourceLocation::FromString(A->getValue(Args)); 1532 if (Opts.CodeCompletionAt.FileName.empty()) 1533 Diags.Report(diag::err_drv_invalid_value) 1534 << A->getAsString(Args) << A->getValue(Args); 1535 } 1536 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1537 1538 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1539 Opts.Plugins = Args.getAllArgValues(OPT_load); 1540 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1541 Opts.ShowHelp = Args.hasArg(OPT_help); 1542 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1543 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1544 Opts.ShowVersion = Args.hasArg(OPT_version); 1545 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1546 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1547 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1548 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1549 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1550 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1551 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1552 1553 Opts.CodeCompleteOpts.IncludeMacros 1554 = Args.hasArg(OPT_code_completion_macros); 1555 Opts.CodeCompleteOpts.IncludeCodePatterns 1556 = Args.hasArg(OPT_code_completion_patterns); 1557 Opts.CodeCompleteOpts.IncludeGlobals 1558 = !Args.hasArg(OPT_no_code_completion_globals); 1559 Opts.CodeCompleteOpts.IncludeBriefComments 1560 = Args.hasArg(OPT_code_completion_brief_comments); 1561 1562 Opts.OverrideRecordLayoutsFile 1563 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1564 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1565 OPT_arcmt_modify, 1566 OPT_arcmt_migrate)) { 1567 switch (A->getOption().getID()) { 1568 default: 1569 llvm_unreachable("missed a case"); 1570 case OPT_arcmt_check: 1571 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1572 break; 1573 case OPT_arcmt_modify: 1574 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1575 break; 1576 case OPT_arcmt_migrate: 1577 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1578 break; 1579 } 1580 } 1581 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1582 Opts.ARCMTMigrateReportOut 1583 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1584 Opts.ARCMTMigrateEmitARCErrors 1585 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1586 1587 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1588 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1589 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1590 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1591 1592 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1593 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1594 Diags.Report(diag::err_drv_argument_not_allowed_with) 1595 << "ARC migration" << "ObjC migration"; 1596 } 1597 1598 InputKind DashX = IK_None; 1599 if (const Arg *A = Args.getLastArg(OPT_x)) { 1600 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1601 .Case("c", IK_C) 1602 .Case("cl", IK_OpenCL) 1603 .Case("cuda", IK_CUDA) 1604 .Case("c++", IK_CXX) 1605 .Case("objective-c", IK_ObjC) 1606 .Case("objective-c++", IK_ObjCXX) 1607 .Case("cpp-output", IK_PreprocessedC) 1608 .Case("assembler-with-cpp", IK_Asm) 1609 .Case("c++-cpp-output", IK_PreprocessedCXX) 1610 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1611 .Case("objc-cpp-output", IK_PreprocessedObjC) 1612 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1613 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1614 .Case("c-header", IK_C) 1615 .Case("cl-header", IK_OpenCL) 1616 .Case("objective-c-header", IK_ObjC) 1617 .Case("c++-header", IK_CXX) 1618 .Case("objective-c++-header", IK_ObjCXX) 1619 .Case("ast", IK_AST) 1620 .Case("ir", IK_LLVM_IR) 1621 .Default(IK_None); 1622 if (DashX == IK_None) 1623 Diags.Report(diag::err_drv_invalid_value) 1624 << A->getAsString(Args) << A->getValue(Args); 1625 } 1626 1627 // '-' is the default input if none is given. 1628 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1629 Opts.Inputs.clear(); 1630 if (Inputs.empty()) 1631 Inputs.push_back("-"); 1632 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1633 InputKind IK = DashX; 1634 if (IK == IK_None) { 1635 IK = FrontendOptions::getInputKindForExtension( 1636 StringRef(Inputs[i]).rsplit('.').second); 1637 // FIXME: Remove this hack. 1638 if (i == 0) 1639 DashX = IK; 1640 } 1641 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1642 } 1643 1644 return DashX; 1645 } 1646 1647 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1648 void *MainAddr) { 1649 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1650 1651 if (!P.isEmpty()) { 1652 P.eraseComponent(); // Remove /clang from foo/bin/clang 1653 P.eraseComponent(); // Remove /bin from foo/bin 1654 1655 // Get foo/lib/clang/<version>/include 1656 P.appendComponent("lib"); 1657 P.appendComponent("clang"); 1658 P.appendComponent(CLANG_VERSION_STRING); 1659 } 1660 1661 return P.str(); 1662 } 1663 1664 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1665 using namespace options; 1666 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1667 Opts.Verbose = Args.hasArg(OPT_v); 1668 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1669 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1670 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1671 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1672 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 1673 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1674 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 1675 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1676 1677 // Add -I..., -F..., and -index-header-map options in order. 1678 bool IsIndexHeaderMap = false; 1679 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1680 OPT_index_header_map), 1681 ie = Args.filtered_end(); it != ie; ++it) { 1682 if ((*it)->getOption().matches(OPT_index_header_map)) { 1683 // -index-header-map applies to the next -I or -F. 1684 IsIndexHeaderMap = true; 1685 continue; 1686 } 1687 1688 frontend::IncludeDirGroup Group 1689 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1690 1691 Opts.AddPath((*it)->getValue(Args), Group, true, 1692 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 1693 IsIndexHeaderMap = false; 1694 } 1695 1696 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1697 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1698 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1699 OPT_iwithprefixbefore), 1700 ie = Args.filtered_end(); it != ie; ++it) { 1701 const Arg *A = *it; 1702 if (A->getOption().matches(OPT_iprefix)) 1703 Prefix = A->getValue(Args); 1704 else if (A->getOption().matches(OPT_iwithprefix)) 1705 Opts.AddPath(Prefix.str() + A->getValue(Args), 1706 frontend::System, false, false, false); 1707 else 1708 Opts.AddPath(Prefix.str() + A->getValue(Args), 1709 frontend::Angled, false, false, false); 1710 } 1711 1712 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1713 ie = Args.filtered_end(); it != ie; ++it) 1714 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 1715 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1716 ie = Args.filtered_end(); it != ie; ++it) 1717 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 1718 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1719 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1720 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 1721 !(*it)->getOption().matches(OPT_iwithsysroot)); 1722 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1723 ie = Args.filtered_end(); it != ie; ++it) 1724 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true, 1725 true); 1726 1727 // Add the paths for the various language specific isystem flags. 1728 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1729 ie = Args.filtered_end(); it != ie; ++it) 1730 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 1731 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1732 ie = Args.filtered_end(); it != ie; ++it) 1733 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 1734 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1735 ie = Args.filtered_end(); it != ie; ++it) 1736 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 1737 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1738 ie = Args.filtered_end(); it != ie; ++it) 1739 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 1740 true); 1741 1742 // Add the internal paths from a driver that detects standard include paths. 1743 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1744 OPT_internal_externc_isystem), 1745 E = Args.filtered_end(); 1746 I != E; ++I) 1747 Opts.AddPath((*I)->getValue(Args), frontend::System, 1748 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 1749 (*I)->getOption().matches(OPT_internal_externc_isystem)); 1750 1751 // Add the path prefixes which are implicitly treated as being system headers. 1752 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 1753 OPT_ino_system_prefix), 1754 E = Args.filtered_end(); 1755 I != E; ++I) 1756 Opts.AddSystemHeaderPrefix((*I)->getValue(Args), 1757 (*I)->getOption().matches(OPT_isystem_prefix)); 1758 } 1759 1760 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1761 LangStandard::Kind LangStd) { 1762 // Set some properties which depend solely on the input kind; it would be nice 1763 // to move these to the language standard, and have the driver resolve the 1764 // input kind + language standard. 1765 if (IK == IK_Asm) { 1766 Opts.AsmPreprocessor = 1; 1767 } else if (IK == IK_ObjC || 1768 IK == IK_ObjCXX || 1769 IK == IK_PreprocessedObjC || 1770 IK == IK_PreprocessedObjCXX) { 1771 Opts.ObjC1 = Opts.ObjC2 = 1; 1772 } 1773 1774 if (LangStd == LangStandard::lang_unspecified) { 1775 // Based on the base language, pick one. 1776 switch (IK) { 1777 case IK_None: 1778 case IK_AST: 1779 case IK_LLVM_IR: 1780 llvm_unreachable("Invalid input kind!"); 1781 case IK_OpenCL: 1782 LangStd = LangStandard::lang_opencl; 1783 break; 1784 case IK_CUDA: 1785 LangStd = LangStandard::lang_cuda; 1786 break; 1787 case IK_Asm: 1788 case IK_C: 1789 case IK_PreprocessedC: 1790 case IK_ObjC: 1791 case IK_PreprocessedObjC: 1792 LangStd = LangStandard::lang_gnu99; 1793 break; 1794 case IK_CXX: 1795 case IK_PreprocessedCXX: 1796 case IK_ObjCXX: 1797 case IK_PreprocessedObjCXX: 1798 LangStd = LangStandard::lang_gnucxx98; 1799 break; 1800 } 1801 } 1802 1803 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1804 Opts.BCPLComment = Std.hasBCPLComments(); 1805 Opts.C99 = Std.isC99(); 1806 Opts.C11 = Std.isC11(); 1807 Opts.CPlusPlus = Std.isCPlusPlus(); 1808 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1809 Opts.Digraphs = Std.hasDigraphs(); 1810 Opts.GNUMode = Std.isGNUMode(); 1811 Opts.GNUInline = !Std.isC99(); 1812 Opts.HexFloats = Std.hasHexFloats(); 1813 Opts.ImplicitInt = Std.hasImplicitInt(); 1814 1815 // Set OpenCL Version. 1816 if (LangStd == LangStandard::lang_opencl) { 1817 Opts.OpenCL = 1; 1818 Opts.OpenCLVersion = 100; 1819 } 1820 else if (LangStd == LangStandard::lang_opencl11) { 1821 Opts.OpenCL = 1; 1822 Opts.OpenCLVersion = 110; 1823 } 1824 else if (LangStd == LangStandard::lang_opencl12) { 1825 Opts.OpenCL = 1; 1826 Opts.OpenCLVersion = 120; 1827 } 1828 1829 // OpenCL has some additional defaults. 1830 if (Opts.OpenCL) { 1831 Opts.AltiVec = 0; 1832 Opts.CXXOperatorNames = 1; 1833 Opts.LaxVectorConversions = 0; 1834 Opts.DefaultFPContract = 1; 1835 } 1836 1837 if (LangStd == LangStandard::lang_cuda) 1838 Opts.CUDA = 1; 1839 1840 // OpenCL and C++ both have bool, true, false keywords. 1841 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1842 1843 Opts.GNUKeywords = Opts.GNUMode; 1844 Opts.CXXOperatorNames = Opts.CPlusPlus; 1845 1846 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1847 // is specified, or -std is set to a conforming mode. 1848 Opts.Trigraphs = !Opts.GNUMode; 1849 1850 Opts.DollarIdents = !Opts.AsmPreprocessor; 1851 } 1852 1853 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1854 DiagnosticsEngine &Diags) { 1855 // FIXME: Cleanup per-file based stuff. 1856 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1857 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1858 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1859 #define LANGSTANDARD(id, name, desc, features) \ 1860 .Case(name, LangStandard::lang_##id) 1861 #include "clang/Frontend/LangStandards.def" 1862 .Default(LangStandard::lang_unspecified); 1863 if (LangStd == LangStandard::lang_unspecified) 1864 Diags.Report(diag::err_drv_invalid_value) 1865 << A->getAsString(Args) << A->getValue(Args); 1866 else { 1867 // Valid standard, check to make sure language and standard are compatable. 1868 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1869 switch (IK) { 1870 case IK_C: 1871 case IK_ObjC: 1872 case IK_PreprocessedC: 1873 case IK_PreprocessedObjC: 1874 if (!(Std.isC89() || Std.isC99())) 1875 Diags.Report(diag::err_drv_argument_not_allowed_with) 1876 << A->getAsString(Args) << "C/ObjC"; 1877 break; 1878 case IK_CXX: 1879 case IK_ObjCXX: 1880 case IK_PreprocessedCXX: 1881 case IK_PreprocessedObjCXX: 1882 if (!Std.isCPlusPlus()) 1883 Diags.Report(diag::err_drv_argument_not_allowed_with) 1884 << A->getAsString(Args) << "C++/ObjC++"; 1885 break; 1886 case IK_OpenCL: 1887 if (!Std.isC99()) 1888 Diags.Report(diag::err_drv_argument_not_allowed_with) 1889 << A->getAsString(Args) << "OpenCL"; 1890 break; 1891 case IK_CUDA: 1892 if (!Std.isCPlusPlus()) 1893 Diags.Report(diag::err_drv_argument_not_allowed_with) 1894 << A->getAsString(Args) << "CUDA"; 1895 break; 1896 default: 1897 break; 1898 } 1899 } 1900 } 1901 1902 // -cl-std only applies for OpenCL language standards. 1903 // Override the -std option in this case. 1904 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1905 LangStandard::Kind OpenCLLangStd 1906 = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1907 .Case("CL", LangStandard::lang_opencl) 1908 .Case("CL1.1", LangStandard::lang_opencl11) 1909 .Case("CL1.2", LangStandard::lang_opencl12) 1910 .Default(LangStandard::lang_unspecified); 1911 1912 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1913 Diags.Report(diag::err_drv_invalid_value) 1914 << A->getAsString(Args) << A->getValue(Args); 1915 } 1916 else 1917 LangStd = OpenCLLangStd; 1918 } 1919 1920 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1921 1922 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1923 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1924 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1925 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1926 // name, as it doesn't seem a useful distinction. 1927 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1928 Opts.GNUKeywords); 1929 1930 if (Args.hasArg(OPT_fno_operator_names)) 1931 Opts.CXXOperatorNames = 0; 1932 1933 if (Opts.ObjC1) { 1934 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1935 StringRef value = arg->getValue(Args); 1936 if (Opts.ObjCRuntime.tryParse(value)) 1937 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1938 } 1939 1940 if (Args.hasArg(OPT_fobjc_gc_only)) 1941 Opts.setGC(LangOptions::GCOnly); 1942 else if (Args.hasArg(OPT_fobjc_gc)) 1943 Opts.setGC(LangOptions::HybridGC); 1944 else if (Args.hasArg(OPT_fobjc_arc)) { 1945 Opts.ObjCAutoRefCount = 1; 1946 if (!Opts.ObjCRuntime.allowsARC()) 1947 Diags.Report(diag::err_arc_unsupported_on_runtime); 1948 1949 // Only set ObjCARCWeak if ARC is enabled. 1950 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1951 Opts.ObjCARCWeak = 1; 1952 else 1953 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1954 } 1955 1956 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1957 Opts.ObjCInferRelatedResultType = 0; 1958 } 1959 1960 if (Args.hasArg(OPT_fgnu89_inline)) 1961 Opts.GNUInline = 1; 1962 1963 if (Args.hasArg(OPT_fapple_kext)) { 1964 if (!Opts.CPlusPlus) 1965 Diags.Report(diag::warn_c_kext); 1966 else 1967 Opts.AppleKext = 1; 1968 } 1969 1970 if (Args.hasArg(OPT_print_ivar_layout)) 1971 Opts.ObjCGCBitmapPrint = 1; 1972 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1973 Opts.NoConstantCFStrings = 1; 1974 1975 if (Args.hasArg(OPT_faltivec)) 1976 Opts.AltiVec = 1; 1977 1978 if (Args.hasArg(OPT_pthread)) 1979 Opts.POSIXThreads = 1; 1980 1981 if (Args.hasArg(OPT_fdelayed_template_parsing)) 1982 Opts.DelayedTemplateParsing = 1; 1983 1984 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1985 if (Vis == "default") 1986 Opts.setVisibilityMode(DefaultVisibility); 1987 else if (Vis == "hidden") 1988 Opts.setVisibilityMode(HiddenVisibility); 1989 else if (Vis == "protected") 1990 // FIXME: diagnose if target does not support protected visibility 1991 Opts.setVisibilityMode(ProtectedVisibility); 1992 else 1993 Diags.Report(diag::err_drv_invalid_value) 1994 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1995 1996 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 1997 StringRef Val = A->getValue(Args); 1998 if (Val == "fast") 1999 Opts.setFPContractMode(LangOptions::FPC_Fast); 2000 else if (Val == "on") 2001 Opts.setFPContractMode(LangOptions::FPC_On); 2002 else if (Val == "off") 2003 Opts.setFPContractMode(LangOptions::FPC_Off); 2004 else 2005 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2006 } 2007 2008 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2009 Opts.InlineVisibilityHidden = 1; 2010 2011 if (Args.hasArg(OPT_ftrapv)) { 2012 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2013 // Set the handler, if one is specified. 2014 Opts.OverflowHandler = 2015 Args.getLastArgValue(OPT_ftrapv_handler); 2016 } 2017 else if (Args.hasArg(OPT_fwrapv)) 2018 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2019 2020 if (Args.hasArg(OPT_trigraphs)) 2021 Opts.Trigraphs = 1; 2022 2023 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2024 OPT_fno_dollars_in_identifiers, 2025 Opts.DollarIdents); 2026 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2027 Opts.MicrosoftExt 2028 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 2029 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 2030 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 2031 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2032 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2033 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2034 Opts.ConstStrings); 2035 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2036 Opts.LaxVectorConversions = 0; 2037 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2038 Opts.ThreadsafeStatics = 0; 2039 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2040 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2041 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2042 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2043 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2044 2045 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 2046 Opts.Blocks = Args.hasArg(OPT_fblocks); 2047 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2048 Opts.Modules = Args.hasArg(OPT_fmodules); 2049 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 2050 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 2051 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2052 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2053 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2054 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 2055 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2056 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2057 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2058 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 2059 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512, 2060 Diags); 2061 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 2062 Diags); 2063 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2064 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 2065 0, Diags); 2066 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2067 Opts.ObjCConstantStringClass = 2068 Args.getLastArgValue(OPT_fconstant_string_class); 2069 Opts.ObjCDefaultSynthProperties = 2070 Args.hasArg(OPT_fobjc_default_synthesize_properties); 2071 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 2072 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2073 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 2074 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 2075 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 2076 Opts.Static = Args.hasArg(OPT_static_define); 2077 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2078 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2079 || Args.hasArg(OPT_fdump_record_layouts); 2080 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2081 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2082 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2083 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2084 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2085 Opts.MRTD = Args.hasArg(OPT_mrtd); 2086 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2087 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2088 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2089 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2090 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2091 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2092 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer); 2093 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer); 2094 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2095 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 2096 2097 // Record whether the __DEPRECATED define was requested. 2098 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2099 OPT_fno_deprecated_macro, 2100 Opts.Deprecated); 2101 2102 // FIXME: Eliminate this dependency. 2103 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2104 OptSize = getOptimizationLevelSize(Args, IK, Diags); 2105 Opts.Optimize = Opt != 0; 2106 Opts.OptimizeSize = OptSize != 0; 2107 2108 // This is the __NO_INLINE__ define, which just depends on things like the 2109 // optimization level and -fno-inline, not actually whether the backend has 2110 // inlining enabled. 2111 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2112 2113 Opts.FastMath = Args.hasArg(OPT_ffast_math); 2114 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 2115 2116 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 2117 switch (SSP) { 2118 default: 2119 Diags.Report(diag::err_drv_invalid_value) 2120 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2121 break; 2122 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2123 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2124 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 2125 } 2126 } 2127 2128 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2129 FileManager &FileMgr, 2130 DiagnosticsEngine &Diags) { 2131 using namespace options; 2132 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2133 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2134 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2135 Opts.TokenCache = A->getValue(Args); 2136 else 2137 Opts.TokenCache = Opts.ImplicitPTHInclude; 2138 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2139 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2140 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2141 2142 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2143 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 2144 ie = Args.filtered_end(); it != ie; ++it) { 2145 const Arg *A = *it; 2146 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 2147 } 2148 2149 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2150 StringRef Value(A->getValue(Args)); 2151 size_t Comma = Value.find(','); 2152 unsigned Bytes = 0; 2153 unsigned EndOfLine = 0; 2154 2155 if (Comma == StringRef::npos || 2156 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2157 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2158 Diags.Report(diag::err_drv_preamble_format); 2159 else { 2160 Opts.PrecompiledPreambleBytes.first = Bytes; 2161 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2162 } 2163 } 2164 2165 // Add macros from the command line. 2166 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 2167 ie = Args.filtered_end(); it != ie; ++it) { 2168 if ((*it)->getOption().matches(OPT_D)) 2169 Opts.addMacroDef((*it)->getValue(Args)); 2170 else 2171 Opts.addMacroUndef((*it)->getValue(Args)); 2172 } 2173 2174 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2175 2176 // Add the ordered list of -includes. 2177 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 2178 OPT_include_pth), 2179 ie = Args.filtered_end(); it != ie; ++it) { 2180 const Arg *A = *it; 2181 // PCH is handled specially, we need to extra the original include path. 2182 if (A->getOption().matches(OPT_include_pch)) { 2183 std::string OriginalFile = 2184 ASTReader::getOriginalSourceFile(A->getValue(Args), FileMgr, Diags); 2185 if (OriginalFile.empty()) 2186 continue; 2187 2188 Opts.Includes.push_back(OriginalFile); 2189 } else 2190 Opts.Includes.push_back(A->getValue(Args)); 2191 } 2192 2193 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 2194 ie = Args.filtered_end(); it != ie; ++it) { 2195 const Arg *A = *it; 2196 Opts.ChainedIncludes.push_back(A->getValue(Args)); 2197 } 2198 2199 // Include 'altivec.h' if -faltivec option present 2200 if (Args.hasArg(OPT_faltivec)) 2201 Opts.Includes.push_back("altivec.h"); 2202 2203 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 2204 ie = Args.filtered_end(); it != ie; ++it) { 2205 const Arg *A = *it; 2206 std::pair<StringRef,StringRef> Split = 2207 StringRef(A->getValue(Args)).split(';'); 2208 2209 if (Split.second.empty()) { 2210 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2211 continue; 2212 } 2213 2214 Opts.addRemappedFile(Split.first, Split.second); 2215 } 2216 2217 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2218 StringRef Name = A->getValue(Args); 2219 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2220 .Case("libc++", ARCXX_libcxx) 2221 .Case("libstdc++", ARCXX_libstdcxx) 2222 .Case("none", ARCXX_nolib) 2223 .Default(~0U); 2224 if (Library == ~0U) 2225 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2226 else 2227 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2228 } 2229 } 2230 2231 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2232 ArgList &Args) { 2233 using namespace options; 2234 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2235 Opts.ShowComments = Args.hasArg(OPT_C); 2236 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2237 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2238 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2239 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2240 } 2241 2242 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 2243 using namespace options; 2244 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2245 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 2246 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2247 Opts.Features = Args.getAllArgValues(OPT_target_feature); 2248 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2249 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2250 2251 // Use the default target triple if unspecified. 2252 if (Opts.Triple.empty()) 2253 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2254 } 2255 2256 // 2257 2258 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2259 const char *const *ArgBegin, 2260 const char *const *ArgEnd, 2261 DiagnosticsEngine &Diags) { 2262 bool Success = true; 2263 2264 // Parse the arguments. 2265 OwningPtr<OptTable> Opts(createDriverOptTable()); 2266 unsigned MissingArgIndex, MissingArgCount; 2267 OwningPtr<InputArgList> Args( 2268 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 2269 2270 // Check for missing argument error. 2271 if (MissingArgCount) { 2272 Diags.Report(diag::err_drv_missing_argument) 2273 << Args->getArgString(MissingArgIndex) << MissingArgCount; 2274 Success = false; 2275 } 2276 2277 // Issue errors on unknown arguments. 2278 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 2279 ie = Args->filtered_end(); it != ie; ++it) { 2280 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 2281 Success = false; 2282 } 2283 2284 // Issue errors on arguments that are not valid for CC1. 2285 for (ArgList::iterator I = Args->begin(), E = Args->end(); 2286 I != E; ++I) { 2287 if (!(*I)->getOption().isCC1Option()) { 2288 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 2289 Success = false; 2290 } 2291 } 2292 2293 Success = ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags) && Success; 2294 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 2295 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 2296 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 2297 && Success; 2298 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 2299 // FIXME: We shouldn't have to pass the DashX option around here 2300 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 2301 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 2302 && Success; 2303 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 2304 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 2305 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 2306 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2307 Res.getLangOpts()->ObjCExceptions = 1; 2308 } 2309 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2310 // PCH file and find the original header name. Remove the need to do that in 2311 // ParsePreprocessorArgs and remove the FileManager 2312 // parameters from the function and the "FileManager.h" #include. 2313 FileManager FileMgr(Res.getFileSystemOpts()); 2314 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 2315 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 2316 ParseTargetArgs(Res.getTargetOpts(), *Args); 2317 2318 return Success; 2319 } 2320 2321 namespace { 2322 2323 class ModuleSignature { 2324 llvm::SmallVector<uint64_t, 16> Data; 2325 unsigned CurBit; 2326 uint64_t CurValue; 2327 2328 public: 2329 ModuleSignature() : CurBit(0), CurValue(0) { } 2330 2331 void add(uint64_t Value, unsigned Bits); 2332 void add(StringRef Value); 2333 void flush(); 2334 2335 llvm::APInt getAsInteger() const; 2336 }; 2337 } 2338 2339 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 2340 CurValue |= Value << CurBit; 2341 if (CurBit + NumBits < 64) { 2342 CurBit += NumBits; 2343 return; 2344 } 2345 2346 // Add the current word. 2347 Data.push_back(CurValue); 2348 2349 if (CurBit) 2350 CurValue = Value >> (64-CurBit); 2351 else 2352 CurValue = 0; 2353 CurBit = (CurBit+NumBits) & 63; 2354 } 2355 2356 void ModuleSignature::flush() { 2357 if (CurBit == 0) 2358 return; 2359 2360 Data.push_back(CurValue); 2361 CurBit = 0; 2362 CurValue = 0; 2363 } 2364 2365 void ModuleSignature::add(StringRef Value) { 2366 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 2367 add(*I, 8); 2368 } 2369 2370 llvm::APInt ModuleSignature::getAsInteger() const { 2371 return llvm::APInt(Data.size() * 64, Data); 2372 } 2373 2374 std::string CompilerInvocation::getModuleHash() const { 2375 ModuleSignature Signature; 2376 2377 // Start the signature with the compiler version. 2378 // FIXME: The full version string can be quite long. Omit it from the 2379 // module hash for now to avoid failures where the path name becomes too 2380 // long. An MD5 or similar checksum would work well here. 2381 // Signature.add(getClangFullRepositoryVersion()); 2382 2383 // Extend the signature with the language options 2384 #define LANGOPT(Name, Bits, Default, Description) \ 2385 Signature.add(LangOpts->Name, Bits); 2386 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2387 Signature.add(static_cast<unsigned>(LangOpts->get##Name()), Bits); 2388 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2389 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2390 #include "clang/Basic/LangOptions.def" 2391 2392 // Extend the signature with the target triple 2393 llvm::Triple T(TargetOpts.Triple); 2394 Signature.add((unsigned)T.getArch(), 5); 2395 Signature.add((unsigned)T.getVendor(), 4); 2396 Signature.add((unsigned)T.getOS(), 5); 2397 Signature.add((unsigned)T.getEnvironment(), 4); 2398 2399 // Extend the signature with preprocessor options. 2400 Signature.add(getPreprocessorOpts().UsePredefines, 1); 2401 Signature.add(getPreprocessorOpts().DetailedRecord, 1); 2402 2403 // Hash the preprocessor defines. 2404 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines. 2405 std::vector<StringRef> MacroDefs; 2406 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 2407 I = getPreprocessorOpts().Macros.begin(), 2408 IEnd = getPreprocessorOpts().Macros.end(); 2409 I != IEnd; ++I) { 2410 if (!I->second) 2411 MacroDefs.push_back(I->first); 2412 } 2413 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end()); 2414 2415 unsigned PPHashResult = 0; 2416 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I) 2417 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult); 2418 Signature.add(PPHashResult, 32); 2419 2420 // We've generated the signature. Treat it as one large APInt that we'll 2421 // encode in base-36 and return. 2422 Signature.flush(); 2423 return Signature.getAsInteger().toString(36, /*Signed=*/false); 2424 } 2425