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()), TargetOpts(new TargetOptions()), 39 DiagnosticOpts(new DiagnosticOptions()), 40 HeaderSearchOpts(new HeaderSearchOptions()), 41 PreprocessorOpts(new PreprocessorOptions()) {} 42 43 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 44 : RefCountedBase<CompilerInvocation>(), 45 LangOpts(new LangOptions(*X.getLangOpts())), 46 TargetOpts(new TargetOptions(X.getTargetOpts())), 47 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 48 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 49 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 50 51 //===----------------------------------------------------------------------===// 52 // Utility functions. 53 //===----------------------------------------------------------------------===// 54 55 static const char *getAnalysisStoreName(AnalysisStores Kind) { 56 switch (Kind) { 57 default: 58 llvm_unreachable("Unknown analysis store!"); 59 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 60 case NAME##Model: return CMDFLAG; 61 #include "clang/StaticAnalyzer/Core/Analyses.def" 62 } 63 } 64 65 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) { 66 switch (Kind) { 67 default: 68 llvm_unreachable("Unknown analysis constraints!"); 69 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 70 case NAME##Model: return CMDFLAG; 71 #include "clang/StaticAnalyzer/Core/Analyses.def" 72 } 73 } 74 75 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) { 76 switch (Kind) { 77 default: 78 llvm_unreachable("Unknown analysis client!"); 79 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \ 80 case PD_##NAME: return CMDFLAG; 81 #include "clang/StaticAnalyzer/Core/Analyses.def" 82 } 83 } 84 85 static const char *getAnalysisPurgeModeName(AnalysisPurgeMode Kind) { 86 switch (Kind) { 87 default: 88 llvm_unreachable("Unknown analysis purge mode!"); 89 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 90 case NAME: return CMDFLAG; 91 #include "clang/StaticAnalyzer/Core/Analyses.def" 92 } 93 } 94 95 static const char *getAnalysisIPAModeName(AnalysisIPAMode Kind) { 96 switch (Kind) { 97 default: 98 llvm_unreachable("Unknown analysis ipa mode!"); 99 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 100 case NAME: return CMDFLAG; 101 #include "clang/StaticAnalyzer/Core/Analyses.def" 102 } 103 } 104 105 static const char * 106 getAnalysisInliningModeName(AnalysisInliningMode Kind) { 107 switch (Kind) { 108 default: 109 llvm_unreachable("Unknown analysis inlining mode!"); 110 #define ANALYSIS_INLINE_SELECTION(NAME, CMDFLAG, DESC) \ 111 case NAME: return CMDFLAG; 112 #include "clang/StaticAnalyzer/Core/Analyses.def" 113 } 114 } 115 116 //===----------------------------------------------------------------------===// 117 // Serialization (to args) 118 //===----------------------------------------------------------------------===// 119 120 namespace { 121 /// ToArgsList - Helper class to create a list of std::strings. 122 class ToArgsList { 123 std::vector<std::string> &Res; 124 public: 125 explicit ToArgsList(std::vector<std::string> &Res) : Res(Res) {} 126 127 void push_back(StringRef Str) { 128 // Avoid creating a temporary string. 129 Res.push_back(std::string()); 130 Res.back().assign(Str.data(), Str.size()); 131 } 132 133 void push_back(StringRef Str1, StringRef Str2) { 134 push_back(Str1); 135 push_back(Str2); 136 } 137 }; 138 } 139 140 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, ToArgsList &Res) { 141 if (Opts.ShowCheckerHelp) 142 Res.push_back("-analyzer-checker-help"); 143 if (Opts.AnalysisStoreOpt != RegionStoreModel) 144 Res.push_back("-analyzer-store", 145 getAnalysisStoreName(Opts.AnalysisStoreOpt)); 146 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) 147 Res.push_back("-analyzer-constraints", 148 getAnalysisConstraintName(Opts.AnalysisConstraintsOpt)); 149 if (Opts.AnalysisDiagOpt != PD_HTML) 150 Res.push_back("-analyzer-output", 151 getAnalysisDiagClientName(Opts.AnalysisDiagOpt)); 152 if (Opts.AnalysisPurgeOpt != PurgeStmt) 153 Res.push_back("-analyzer-purge", 154 getAnalysisPurgeModeName(Opts.AnalysisPurgeOpt)); 155 if (!Opts.AnalyzeSpecificFunction.empty()) 156 Res.push_back("-analyze-function", Opts.AnalyzeSpecificFunction); 157 if (Opts.IPAMode != DynamicDispatchBifurcate) 158 Res.push_back("-analyzer-ipa", getAnalysisIPAModeName(Opts.IPAMode)); 159 if (Opts.InliningMode != NoRedundancy) 160 Res.push_back("-analyzer-inlining-mode", 161 getAnalysisInliningModeName(Opts.InliningMode)); 162 163 if (Opts.AnalyzeAll) 164 Res.push_back("-analyzer-opt-analyze-headers"); 165 if (Opts.AnalyzerDisplayProgress) 166 Res.push_back("-analyzer-display-progress"); 167 if (Opts.AnalyzeNestedBlocks) 168 Res.push_back("-analyzer-opt-analyze-nested-blocks"); 169 if (Opts.eagerlyAssumeBinOpBifurcation) 170 Res.push_back("-analyzer-eagerly-assume"); 171 if (Opts.TrimGraph) 172 Res.push_back("-trim-egraph"); 173 if (Opts.visualizeExplodedGraphWithGraphViz) 174 Res.push_back("-analyzer-viz-egraph-graphviz"); 175 if (Opts.visualizeExplodedGraphWithUbiGraph) 176 Res.push_back("-analyzer-viz-egraph-ubigraph"); 177 if (Opts.NoRetryExhausted) 178 Res.push_back("-analyzer-disable-retry-exhausted"); 179 180 for (unsigned i = 0, e = Opts.CheckersControlList.size(); i != e; ++i) { 181 const std::pair<std::string, bool> &opt = Opts.CheckersControlList[i]; 182 if (opt.second) 183 Res.push_back("-analyzer-disable-checker"); 184 else 185 Res.push_back("-analyzer-checker"); 186 Res.push_back(opt.first); 187 } 188 } 189 190 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) { 191 switch (Opts.getDebugInfo()) { 192 case CodeGenOptions::NoDebugInfo: 193 break; 194 case CodeGenOptions::DebugLineTablesOnly: 195 Res.push_back("-gline-tables-only"); 196 break; 197 case CodeGenOptions::LimitedDebugInfo: 198 Res.push_back("-g"); 199 Res.push_back("-flimit-debug-info"); 200 break; 201 case CodeGenOptions::FullDebugInfo: 202 Res.push_back("-g"); 203 Res.push_back("-fno-limit-debug-info"); 204 break; 205 } 206 if (Opts.DebugColumnInfo) 207 Res.push_back("-gcolumn-info"); 208 if (Opts.DisableLLVMOpts) 209 Res.push_back("-disable-llvm-optzns"); 210 if (Opts.DisableRedZone) 211 Res.push_back("-disable-red-zone"); 212 if (Opts.DisableTailCalls) 213 Res.push_back("-mdisable-tail-calls"); 214 if (!Opts.DebugCompilationDir.empty()) 215 Res.push_back("-fdebug-compilation-dir", Opts.DebugCompilationDir); 216 if (!Opts.DwarfDebugFlags.empty()) 217 Res.push_back("-dwarf-debug-flags", Opts.DwarfDebugFlags); 218 if (Opts.EmitGcovArcs) 219 Res.push_back("-femit-coverage-data"); 220 if (Opts.EmitGcovNotes) 221 Res.push_back("-femit-coverage-notes"); 222 if (Opts.EmitOpenCLArgMetadata) 223 Res.push_back("-cl-kernel-arg-info"); 224 if (!Opts.MergeAllConstants) 225 Res.push_back("-fno-merge-all-constants"); 226 if (Opts.NoCommon) 227 Res.push_back("-fno-common"); 228 if (Opts.ForbidGuardVariables) 229 Res.push_back("-fforbid-guard-variables"); 230 if (Opts.UseRegisterSizedBitfieldAccess) 231 Res.push_back("-fuse-register-sized-bitfield-access"); 232 if (Opts.NoImplicitFloat) 233 Res.push_back("-no-implicit-float"); 234 if (Opts.OmitLeafFramePointer) 235 Res.push_back("-momit-leaf-frame-pointer"); 236 if (Opts.OptimizeSize) { 237 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 238 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz"); 239 } else if (Opts.OptimizationLevel != 0) 240 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 241 if (!Opts.MainFileName.empty()) 242 Res.push_back("-main-file-name", Opts.MainFileName); 243 if (Opts.NoInfsFPMath) 244 Res.push_back("-menable-no-infinities"); 245 if (Opts.NoNaNsFPMath) 246 Res.push_back("-menable-no-nans"); 247 // SimplifyLibCalls is only derived. 248 // TimePasses is only derived. 249 // UnitAtATime is unused. 250 // Inlining is only derived. 251 252 // UnrollLoops is derived, but also accepts an option, no 253 // harm in pushing it back here. 254 if (Opts.UnrollLoops) 255 Res.push_back("-funroll-loops"); 256 if (Opts.DataSections) 257 Res.push_back("-fdata-sections"); 258 if (Opts.FunctionSections) 259 Res.push_back("-ffunction-sections"); 260 if (Opts.AsmVerbose) 261 Res.push_back("-masm-verbose"); 262 if (!Opts.CodeModel.empty()) 263 Res.push_back("-mcode-model", Opts.CodeModel); 264 if (Opts.CUDAIsDevice) 265 Res.push_back("-fcuda-is-device"); 266 if (!Opts.CXAAtExit) 267 Res.push_back("-fno-use-cxa-atexit"); 268 if (Opts.CXXCtorDtorAliases) 269 Res.push_back("-mconstructor-aliases"); 270 if (Opts.ObjCAutoRefCountExceptions) 271 Res.push_back("-fobjc-arc-eh"); 272 if (!Opts.DebugPass.empty()) { 273 Res.push_back("-mdebug-pass", Opts.DebugPass); 274 } 275 if (Opts.DisableFPElim) 276 Res.push_back("-mdisable-fp-elim"); 277 if (!Opts.FloatABI.empty()) 278 Res.push_back("-mfloat-abi", Opts.FloatABI); 279 if (!Opts.LimitFloatPrecision.empty()) 280 Res.push_back("-mlimit-float-precision", Opts.LimitFloatPrecision); 281 if (Opts.NoZeroInitializedInBSS) 282 Res.push_back("-mno-zero-initialized-bss"); 283 switch (Opts.getObjCDispatchMethod()) { 284 case CodeGenOptions::Legacy: 285 break; 286 case CodeGenOptions::Mixed: 287 Res.push_back("-fobjc-dispatch-method=mixed"); 288 break; 289 case CodeGenOptions::NonLegacy: 290 Res.push_back("-fobjc-dispatch-method=non-legacy"); 291 break; 292 } 293 if (Opts.BoundsChecking > 0) 294 Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking)); 295 if (Opts.NumRegisterParameters) 296 Res.push_back("-mregparm", llvm::utostr(Opts.NumRegisterParameters)); 297 if (Opts.NoGlobalMerge) 298 Res.push_back("-mno-global-merge"); 299 if (Opts.NoExecStack) 300 Res.push_back("-mnoexecstack"); 301 if (Opts.RelaxAll) 302 Res.push_back("-mrelax-all"); 303 if (Opts.SaveTempLabels) 304 Res.push_back("-msave-temp-labels"); 305 if (Opts.NoDwarf2CFIAsm) 306 Res.push_back("-fno-dwarf2-cfi-asm"); 307 if (Opts.NoDwarfDirectoryAsm) 308 Res.push_back("-fno-dwarf-directory-asm"); 309 if (Opts.SoftFloat) 310 Res.push_back("-msoft-float"); 311 if (Opts.StrictEnums) 312 Res.push_back("-fstrict-enums"); 313 if (Opts.UnwindTables) 314 Res.push_back("-munwind-tables"); 315 if (Opts.RelocationModel != "pic") 316 Res.push_back("-mrelocation-model", Opts.RelocationModel); 317 if (!Opts.VerifyModule) 318 Res.push_back("-disable-llvm-verifier"); 319 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) 320 Res.push_back("-backend-option", Opts.BackendOptions[i]); 321 322 switch (Opts.getDefaultTLSModel()) { 323 case CodeGenOptions::GeneralDynamicTLSModel: 324 break; 325 case CodeGenOptions::LocalDynamicTLSModel: 326 Res.push_back("-ftls-model=local-dynamic"); 327 break; 328 case CodeGenOptions::InitialExecTLSModel: 329 Res.push_back("-ftls-model=initial-exec"); 330 break; 331 case CodeGenOptions::LocalExecTLSModel: 332 Res.push_back("-ftls-model=local-exec"); 333 break; 334 } 335 } 336 337 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 338 ToArgsList &Res) { 339 if (Opts.IncludeSystemHeaders) 340 Res.push_back("-sys-header-deps"); 341 if (Opts.ShowHeaderIncludes) 342 Res.push_back("-H"); 343 if (!Opts.HeaderIncludeOutputFile.empty()) 344 Res.push_back("-header-include-file", Opts.HeaderIncludeOutputFile); 345 if (Opts.UsePhonyTargets) 346 Res.push_back("-MP"); 347 if (!Opts.OutputFile.empty()) 348 Res.push_back("-dependency-file", Opts.OutputFile); 349 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) 350 Res.push_back("-MT", Opts.Targets[i]); 351 } 352 353 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 354 ToArgsList &Res) { 355 if (Opts.IgnoreWarnings) 356 Res.push_back("-w"); 357 if (Opts.NoRewriteMacros) 358 Res.push_back("-Wno-rewrite-macros"); 359 if (Opts.Pedantic) 360 Res.push_back("-pedantic"); 361 if (Opts.PedanticErrors) 362 Res.push_back("-pedantic-errors"); 363 if (!Opts.ShowColumn) 364 Res.push_back("-fno-show-column"); 365 if (!Opts.ShowLocation) 366 Res.push_back("-fno-show-source-location"); 367 if (!Opts.ShowCarets) 368 Res.push_back("-fno-caret-diagnostics"); 369 if (!Opts.ShowFixits) 370 Res.push_back("-fno-diagnostics-fixit-info"); 371 if (Opts.ShowSourceRanges) 372 Res.push_back("-fdiagnostics-print-source-range-info"); 373 if (Opts.ShowParseableFixits) 374 Res.push_back("-fdiagnostics-parseable-fixits"); 375 if (Opts.ShowColors) 376 Res.push_back("-fcolor-diagnostics"); 377 if (Opts.VerifyDiagnostics) 378 Res.push_back("-verify"); 379 if (Opts.ShowOptionNames) 380 Res.push_back("-fdiagnostics-show-option"); 381 if (Opts.ShowCategories == 1) 382 Res.push_back("-fdiagnostics-show-category=id"); 383 else if (Opts.ShowCategories == 2) 384 Res.push_back("-fdiagnostics-show-category=name"); 385 switch (Opts.getFormat()) { 386 case DiagnosticOptions::Clang: 387 Res.push_back("-fdiagnostics-format=clang"); break; 388 case DiagnosticOptions::Msvc: 389 Res.push_back("-fdiagnostics-format=msvc"); break; 390 case DiagnosticOptions::Vi: 391 Res.push_back("-fdiagnostics-format=vi"); break; 392 } 393 if (Opts.ErrorLimit) 394 Res.push_back("-ferror-limit", llvm::utostr(Opts.ErrorLimit)); 395 if (!Opts.DiagnosticLogFile.empty()) 396 Res.push_back("-diagnostic-log-file", Opts.DiagnosticLogFile); 397 if (Opts.MacroBacktraceLimit 398 != DiagnosticOptions::DefaultMacroBacktraceLimit) 399 Res.push_back("-fmacro-backtrace-limit", 400 llvm::utostr(Opts.MacroBacktraceLimit)); 401 if (Opts.TemplateBacktraceLimit 402 != DiagnosticOptions::DefaultTemplateBacktraceLimit) 403 Res.push_back("-ftemplate-backtrace-limit", 404 llvm::utostr(Opts.TemplateBacktraceLimit)); 405 if (Opts.ConstexprBacktraceLimit 406 != DiagnosticOptions::DefaultConstexprBacktraceLimit) 407 Res.push_back("-fconstexpr-backtrace-limit", 408 llvm::utostr(Opts.ConstexprBacktraceLimit)); 409 410 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) 411 Res.push_back("-ftabstop", llvm::utostr(Opts.TabStop)); 412 if (Opts.MessageLength) 413 Res.push_back("-fmessage-length", llvm::utostr(Opts.MessageLength)); 414 if (!Opts.DumpBuildInformation.empty()) 415 Res.push_back("-dump-build-information", Opts.DumpBuildInformation); 416 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 417 Res.push_back("-W" + Opts.Warnings[i]); 418 } 419 420 static const char *getInputKindName(InputKind Kind) { 421 switch (Kind) { 422 case IK_None: break; 423 case IK_AST: return "ast"; 424 case IK_Asm: return "assembler-with-cpp"; 425 case IK_C: return "c"; 426 case IK_CXX: return "c++"; 427 case IK_LLVM_IR: return "ir"; 428 case IK_ObjC: return "objective-c"; 429 case IK_ObjCXX: return "objective-c++"; 430 case IK_OpenCL: return "cl"; 431 case IK_CUDA: return "cuda"; 432 case IK_PreprocessedC: return "cpp-output"; 433 case IK_PreprocessedCXX: return "c++-cpp-output"; 434 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 435 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 436 } 437 438 llvm_unreachable("Unexpected language kind!"); 439 } 440 441 static const char *getActionName(frontend::ActionKind Kind) { 442 switch (Kind) { 443 case frontend::PluginAction: 444 llvm_unreachable("Invalid kind!"); 445 446 case frontend::ASTDeclList: return "-ast-list"; 447 case frontend::ASTDump: return "-ast-dump"; 448 case frontend::ASTDumpXML: return "-ast-dump-xml"; 449 case frontend::ASTPrint: return "-ast-print"; 450 case frontend::ASTView: return "-ast-view"; 451 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 452 case frontend::DumpTokens: return "-dump-tokens"; 453 case frontend::EmitAssembly: return "-S"; 454 case frontend::EmitBC: return "-emit-llvm-bc"; 455 case frontend::EmitHTML: return "-emit-html"; 456 case frontend::EmitLLVM: return "-emit-llvm"; 457 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 458 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 459 case frontend::EmitObj: return "-emit-obj"; 460 case frontend::FixIt: return "-fixit"; 461 case frontend::GenerateModule: return "-emit-module"; 462 case frontend::GeneratePCH: return "-emit-pch"; 463 case frontend::GeneratePTH: return "-emit-pth"; 464 case frontend::InitOnly: return "-init-only"; 465 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 466 case frontend::PrintDeclContext: return "-print-decl-contexts"; 467 case frontend::PrintPreamble: return "-print-preamble"; 468 case frontend::PrintPreprocessedInput: return "-E"; 469 case frontend::RewriteMacros: return "-rewrite-macros"; 470 case frontend::RewriteObjC: return "-rewrite-objc"; 471 case frontend::RewriteTest: return "-rewrite-test"; 472 case frontend::RunAnalysis: return "-analyze"; 473 case frontend::MigrateSource: return "-migrate"; 474 case frontend::RunPreprocessorOnly: return "-Eonly"; 475 } 476 477 llvm_unreachable("Unexpected language kind!"); 478 } 479 480 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, ToArgsList &Res){ 481 if (!Opts.WorkingDir.empty()) 482 Res.push_back("-working-directory", Opts.WorkingDir); 483 } 484 485 static void CodeCompleteOptionsToArgs(const CodeCompleteOptions &Opts, 486 ToArgsList &Res) { 487 if (Opts.IncludeMacros) 488 Res.push_back("-code-completion-macros"); 489 if (Opts.IncludeCodePatterns) 490 Res.push_back("-code-completion-patterns"); 491 if (!Opts.IncludeGlobals) 492 Res.push_back("-no-code-completion-globals"); 493 if (Opts.IncludeBriefComments) 494 Res.push_back("-code-completion-brief-comments"); 495 } 496 497 static void FrontendOptsToArgs(const FrontendOptions &Opts, ToArgsList &Res) { 498 if (Opts.DisableFree) 499 Res.push_back("-disable-free"); 500 if (Opts.RelocatablePCH) 501 Res.push_back("-relocatable-pch"); 502 if (Opts.ShowHelp) 503 Res.push_back("-help"); 504 if (Opts.ShowStats) 505 Res.push_back("-print-stats"); 506 if (Opts.ShowTimers) 507 Res.push_back("-ftime-report"); 508 if (Opts.ShowVersion) 509 Res.push_back("-version"); 510 if (Opts.FixWhatYouCan) 511 Res.push_back("-fix-what-you-can"); 512 if (Opts.FixOnlyWarnings) 513 Res.push_back("-fix-only-warnings"); 514 if (Opts.FixAndRecompile) 515 Res.push_back("-fixit-recompile"); 516 if (Opts.FixToTemporaries) 517 Res.push_back("-fixit-to-temporary"); 518 switch (Opts.ARCMTAction) { 519 case FrontendOptions::ARCMT_None: 520 break; 521 case FrontendOptions::ARCMT_Check: 522 Res.push_back("-arcmt-check"); 523 break; 524 case FrontendOptions::ARCMT_Modify: 525 Res.push_back("-arcmt-modify"); 526 break; 527 case FrontendOptions::ARCMT_Migrate: 528 Res.push_back("-arcmt-migrate"); 529 break; 530 } 531 CodeCompleteOptionsToArgs(Opts.CodeCompleteOpts, Res); 532 if (!Opts.MTMigrateDir.empty()) 533 Res.push_back("-mt-migrate-directory", Opts.MTMigrateDir); 534 if (!Opts.ARCMTMigrateReportOut.empty()) 535 Res.push_back("-arcmt-migrate-report-output", Opts.ARCMTMigrateReportOut); 536 if (Opts.ARCMTMigrateEmitARCErrors) 537 Res.push_back("-arcmt-migrate-emit-errors"); 538 539 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Literals) 540 Res.push_back("-objcmt-migrate-literals"); 541 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting) 542 Res.push_back("-objcmt-migrate-subscripting"); 543 544 bool NeedLang = false; 545 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 546 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].File) != 547 Opts.Inputs[i].Kind) 548 NeedLang = true; 549 if (NeedLang) 550 Res.push_back("-x", getInputKindName(Opts.Inputs[0].Kind)); 551 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 552 assert((!NeedLang || Opts.Inputs[i].Kind == Opts.Inputs[0].Kind) && 553 "Unable to represent this input vector!"); 554 Res.push_back(Opts.Inputs[i].File); 555 } 556 557 if (!Opts.OutputFile.empty()) 558 Res.push_back("-o", Opts.OutputFile); 559 if (!Opts.CodeCompletionAt.FileName.empty()) 560 Res.push_back("-code-completion-at", 561 Opts.CodeCompletionAt.FileName + ":" + 562 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 563 llvm::utostr(Opts.CodeCompletionAt.Column)); 564 if (Opts.ProgramAction != frontend::PluginAction) 565 Res.push_back(getActionName(Opts.ProgramAction)); 566 if (!Opts.ActionName.empty()) { 567 Res.push_back("-plugin", Opts.ActionName); 568 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) 569 Res.push_back("-plugin-arg-" + Opts.ActionName, Opts.PluginArgs[i]); 570 } 571 if (!Opts.ASTDumpFilter.empty()) 572 Res.push_back("-ast-dump-filter", Opts.ASTDumpFilter); 573 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) 574 Res.push_back("-load", Opts.Plugins[i]); 575 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 576 Res.push_back("-add-plugin", Opts.AddPluginActions[i]); 577 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai) 578 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i], 579 Opts.AddPluginArgs[i][ai]); 580 } 581 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) 582 Res.push_back("-ast-merge", Opts.ASTMergeFiles[i]); 583 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) 584 Res.push_back("-mllvm", Opts.LLVMArgs[i]); 585 if (!Opts.OverrideRecordLayoutsFile.empty()) 586 Res.push_back("-foverride-record-layout=" + Opts.OverrideRecordLayoutsFile); 587 } 588 589 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 590 ToArgsList &Res) { 591 if (Opts.Sysroot != "/") { 592 Res.push_back("-isysroot"); 593 Res.push_back(Opts.Sysroot); 594 } 595 596 /// User specified include entries. 597 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 598 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 599 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 600 llvm::report_fatal_error("Invalid option set!"); 601 if (E.IsUserSupplied) { 602 switch (E.Group) { 603 case frontend::After: 604 Res.push_back("-idirafter"); 605 break; 606 607 case frontend::Quoted: 608 Res.push_back("-iquote"); 609 break; 610 611 case frontend::System: 612 Res.push_back("-isystem"); 613 break; 614 615 case frontend::IndexHeaderMap: 616 Res.push_back("-index-header-map"); 617 Res.push_back(E.IsFramework? "-F" : "-I"); 618 break; 619 620 case frontend::CSystem: 621 Res.push_back("-c-isystem"); 622 break; 623 624 case frontend::CXXSystem: 625 Res.push_back("-cxx-isystem"); 626 break; 627 628 case frontend::ObjCSystem: 629 Res.push_back("-objc-isystem"); 630 break; 631 632 case frontend::ObjCXXSystem: 633 Res.push_back("-objcxx-isystem"); 634 break; 635 636 case frontend::Angled: 637 Res.push_back(E.IsFramework ? "-F" : "-I"); 638 break; 639 } 640 } else { 641 if (E.IsInternal) { 642 assert(E.Group == frontend::System && "Unexpected header search group"); 643 if (E.ImplicitExternC) 644 Res.push_back("-internal-externc-isystem"); 645 else 646 Res.push_back("-internal-isystem"); 647 } else { 648 if (E.Group != frontend::Angled && E.Group != frontend::System) 649 llvm::report_fatal_error("Invalid option set!"); 650 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 651 "-iwithprefix"); 652 } 653 } 654 Res.push_back(E.Path); 655 } 656 657 /// User-specified system header prefixes. 658 for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) { 659 if (Opts.SystemHeaderPrefixes[i].IsSystemHeader) 660 Res.push_back("-isystem-prefix"); 661 else 662 Res.push_back("-ino-system-prefix"); 663 664 Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix); 665 } 666 667 if (!Opts.ResourceDir.empty()) 668 Res.push_back("-resource-dir", Opts.ResourceDir); 669 if (!Opts.ModuleCachePath.empty()) 670 Res.push_back("-fmodule-cache-path", Opts.ModuleCachePath); 671 if (!Opts.UseStandardSystemIncludes) 672 Res.push_back("-nostdsysteminc"); 673 if (!Opts.UseStandardCXXIncludes) 674 Res.push_back("-nostdinc++"); 675 if (Opts.UseLibcxx) 676 Res.push_back("-stdlib=libc++"); 677 if (Opts.Verbose) 678 Res.push_back("-v"); 679 } 680 681 static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) { 682 LangOptions DefaultLangOpts; 683 684 // FIXME: Need to set -std to get all the implicit options. 685 686 // FIXME: We want to only pass options relative to the defaults, which 687 // requires constructing a target. :( 688 // 689 // It would be better to push the all target specific choices into the driver, 690 // so that everything below that was more uniform. 691 692 if (Opts.Trigraphs) 693 Res.push_back("-trigraphs"); 694 // Implicit based on the input kind: 695 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 696 // Implicit based on the input language standard: 697 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 698 if (Opts.DollarIdents) 699 Res.push_back("-fdollars-in-identifiers"); 700 if (Opts.GNUMode && !Opts.GNUKeywords) 701 Res.push_back("-fno-gnu-keywords"); 702 if (!Opts.GNUMode && Opts.GNUKeywords) 703 Res.push_back("-fgnu-keywords"); 704 if (Opts.MicrosoftExt) 705 Res.push_back("-fms-extensions"); 706 if (Opts.MicrosoftMode) 707 Res.push_back("-fms-compatibility"); 708 if (Opts.MSCVersion != 0) 709 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion)); 710 if (Opts.Borland) 711 Res.push_back("-fborland-extensions"); 712 if (Opts.ObjCDefaultSynthProperties) 713 Res.push_back("-fobjc-default-synthesize-properties"); 714 // NoInline is implicit. 715 if (!Opts.CXXOperatorNames) 716 Res.push_back("-fno-operator-names"); 717 if (Opts.PascalStrings) 718 Res.push_back("-fpascal-strings"); 719 if (Opts.CatchUndefined) 720 Res.push_back("-fcatch-undefined-behavior"); 721 if (Opts.AddressSanitizer) 722 Res.push_back("-faddress-sanitizer"); 723 if (Opts.ThreadSanitizer) 724 Res.push_back("-fthread-sanitizer"); 725 if (Opts.WritableStrings) 726 Res.push_back("-fwritable-strings"); 727 if (Opts.ConstStrings) 728 Res.push_back("-fconst-strings"); 729 if (!Opts.LaxVectorConversions) 730 Res.push_back("-fno-lax-vector-conversions"); 731 if (Opts.AltiVec) 732 Res.push_back("-faltivec"); 733 if (Opts.Exceptions) 734 Res.push_back("-fexceptions"); 735 if (Opts.ObjCExceptions) 736 Res.push_back("-fobjc-exceptions"); 737 if (Opts.CXXExceptions) 738 Res.push_back("-fcxx-exceptions"); 739 if (Opts.SjLjExceptions) 740 Res.push_back("-fsjlj-exceptions"); 741 if (Opts.TraditionalCPP) 742 Res.push_back("-traditional-cpp"); 743 if (!Opts.RTTI) 744 Res.push_back("-fno-rtti"); 745 if (Opts.MSBitfields) 746 Res.push_back("-mms-bitfields"); 747 if (Opts.Freestanding) 748 Res.push_back("-ffreestanding"); 749 if (Opts.NoBuiltin) 750 Res.push_back("-fno-builtin"); 751 if (!Opts.AssumeSaneOperatorNew) 752 Res.push_back("-fno-assume-sane-operator-new"); 753 if (!Opts.ThreadsafeStatics) 754 Res.push_back("-fno-threadsafe-statics"); 755 if (Opts.POSIXThreads) 756 Res.push_back("-pthread"); 757 if (Opts.Blocks) 758 Res.push_back("-fblocks"); 759 if (Opts.BlocksRuntimeOptional) 760 Res.push_back("-fblocks-runtime-optional"); 761 if (Opts.Modules) 762 Res.push_back("-fmodules"); 763 if (Opts.EmitAllDecls) 764 Res.push_back("-femit-all-decls"); 765 if (Opts.MathErrno) 766 Res.push_back("-fmath-errno"); 767 switch (Opts.getSignedOverflowBehavior()) { 768 case LangOptions::SOB_Undefined: break; 769 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 770 case LangOptions::SOB_Trapping: 771 Res.push_back("-ftrapv"); 772 if (!Opts.OverflowHandler.empty()) 773 Res.push_back("-ftrapv-handler", Opts.OverflowHandler); 774 break; 775 } 776 switch (Opts.getFPContractMode()) { 777 case LangOptions::FPC_Off: Res.push_back("-ffp-contract=off"); break; 778 case LangOptions::FPC_On: Res.push_back("-ffp-contract=on"); break; 779 case LangOptions::FPC_Fast: Res.push_back("-ffp-contract=fast"); break; 780 } 781 if (Opts.HeinousExtensions) 782 Res.push_back("-fheinous-gnu-extensions"); 783 // Optimize is implicit. 784 // OptimizeSize is implicit. 785 if (Opts.FastMath) 786 Res.push_back("-ffast-math"); 787 if (Opts.Static) 788 Res.push_back("-static-define"); 789 if (Opts.DumpRecordLayoutsSimple) 790 Res.push_back("-fdump-record-layouts-simple"); 791 else if (Opts.DumpRecordLayouts) 792 Res.push_back("-fdump-record-layouts"); 793 if (Opts.DumpVTableLayouts) 794 Res.push_back("-fdump-vtable-layouts"); 795 if (Opts.NoBitFieldTypeAlign) 796 Res.push_back("-fno-bitfield-type-alignment"); 797 if (Opts.PICLevel) 798 Res.push_back("-pic-level", llvm::utostr(Opts.PICLevel)); 799 if (Opts.PIELevel) 800 Res.push_back("-pie-level", llvm::utostr(Opts.PIELevel)); 801 if (Opts.ObjCGCBitmapPrint) 802 Res.push_back("-print-ivar-layout"); 803 if (Opts.NoConstantCFStrings) 804 Res.push_back("-fno-constant-cfstrings"); 805 if (!Opts.AccessControl) 806 Res.push_back("-fno-access-control"); 807 if (!Opts.CharIsSigned) 808 Res.push_back("-fno-signed-char"); 809 if (Opts.CPlusPlus && !Opts.WChar) 810 Res.push_back("-fno-wchar"); 811 if (Opts.ShortWChar) 812 Res.push_back("-fshort-wchar"); 813 if (!Opts.ElideConstructors) 814 Res.push_back("-fno-elide-constructors"); 815 if (Opts.getGC() != LangOptions::NonGC) { 816 if (Opts.getGC() == LangOptions::HybridGC) { 817 Res.push_back("-fobjc-gc"); 818 } else { 819 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!"); 820 Res.push_back("-fobjc-gc-only"); 821 } 822 } 823 Res.push_back("-fobjc-runtime=" + Opts.ObjCRuntime.getAsString()); 824 if (Opts.ObjCAutoRefCount) 825 Res.push_back("-fobjc-arc"); 826 if (Opts.ObjCARCWeak) 827 Res.push_back("-fobjc-runtime-has-weak"); 828 if (!Opts.ObjCInferRelatedResultType) 829 Res.push_back("-fno-objc-infer-related-result-type"); 830 831 if (Opts.AppleKext) 832 Res.push_back("-fapple-kext"); 833 834 if (Opts.getVisibilityMode() != DefaultVisibility) { 835 Res.push_back("-fvisibility"); 836 if (Opts.getVisibilityMode() == HiddenVisibility) { 837 Res.push_back("hidden"); 838 } else { 839 assert(Opts.getVisibilityMode() == ProtectedVisibility && 840 "Invalid visibility!"); 841 Res.push_back("protected"); 842 } 843 } 844 if (Opts.InlineVisibilityHidden) 845 Res.push_back("-fvisibility-inlines-hidden"); 846 847 if (Opts.getStackProtector() != 0) 848 Res.push_back("-stack-protector", llvm::utostr(Opts.getStackProtector())); 849 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) 850 Res.push_back("-ftemplate-depth", llvm::utostr(Opts.InstantiationDepth)); 851 if (Opts.ConstexprCallDepth != DefaultLangOpts.ConstexprCallDepth) 852 Res.push_back("-fconstexpr-depth", llvm::utostr(Opts.ConstexprCallDepth)); 853 if (!Opts.ObjCConstantStringClass.empty()) 854 Res.push_back("-fconstant-string-class", Opts.ObjCConstantStringClass); 855 if (Opts.FakeAddressSpaceMap) 856 Res.push_back("-ffake-address-space-map"); 857 if (Opts.ParseUnknownAnytype) 858 Res.push_back("-funknown-anytype"); 859 if (Opts.DebuggerSupport) 860 Res.push_back("-fdebugger-support"); 861 if (Opts.DebuggerCastResultToId) 862 Res.push_back("-fdebugger-cast-result-to-id"); 863 if (Opts.DebuggerObjCLiteral) 864 Res.push_back("-fdebugger-objc-literal"); 865 if (Opts.DelayedTemplateParsing) 866 Res.push_back("-fdelayed-template-parsing"); 867 if (Opts.Deprecated) 868 Res.push_back("-fdeprecated-macro"); 869 if (Opts.ApplePragmaPack) 870 Res.push_back("-fapple-pragma-pack"); 871 if (!Opts.CurrentModule.empty()) 872 Res.push_back("-fmodule-name=" + Opts.CurrentModule); 873 } 874 875 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 876 ToArgsList &Res) { 877 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 878 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 879 Opts.Macros[i].first); 880 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 881 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 882 Res.push_back("-include", Opts.Includes[i]); 883 } 884 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) 885 Res.push_back("-imacros", Opts.MacroIncludes[i]); 886 if (!Opts.UsePredefines) 887 Res.push_back("-undef"); 888 if (Opts.DetailedRecord) 889 Res.push_back("-detailed-preprocessing-record"); 890 if (!Opts.ImplicitPCHInclude.empty()) 891 Res.push_back("-include-pch", Opts.ImplicitPCHInclude); 892 if (!Opts.ImplicitPTHInclude.empty()) 893 Res.push_back("-include-pth", Opts.ImplicitPTHInclude); 894 if (!Opts.TokenCache.empty()) { 895 if (Opts.ImplicitPTHInclude.empty()) 896 Res.push_back("-token-cache", Opts.TokenCache); 897 else 898 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 899 "Unsupported option combination!"); 900 } 901 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i) 902 Res.push_back("-chain-include", Opts.ChainedIncludes[i]); 903 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 904 Res.push_back("-remap-file", Opts.RemappedFiles[i].first + ";" + 905 Opts.RemappedFiles[i].second); 906 } 907 } 908 909 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 910 ToArgsList &Res) { 911 if (!Opts.ShowCPP && !Opts.ShowMacros) 912 llvm::report_fatal_error("Invalid option combination!"); 913 914 if (Opts.ShowCPP && Opts.ShowMacros) 915 Res.push_back("-dD"); 916 else if (!Opts.ShowCPP && Opts.ShowMacros) 917 Res.push_back("-dM"); 918 919 if (!Opts.ShowLineMarkers) 920 Res.push_back("-P"); 921 if (Opts.ShowComments) 922 Res.push_back("-C"); 923 if (Opts.ShowMacroComments) 924 Res.push_back("-CC"); 925 } 926 927 static void TargetOptsToArgs(const TargetOptions &Opts, 928 ToArgsList &Res) { 929 Res.push_back("-triple"); 930 Res.push_back(Opts.Triple); 931 if (!Opts.CPU.empty()) 932 Res.push_back("-target-cpu", Opts.CPU); 933 if (!Opts.ABI.empty()) 934 Res.push_back("-target-abi", Opts.ABI); 935 if (!Opts.LinkerVersion.empty()) 936 Res.push_back("-target-linker-version", Opts.LinkerVersion); 937 if (!Opts.CXXABI.empty()) 938 Res.push_back("-cxx-abi", Opts.CXXABI); 939 for (unsigned i = 0, e = Opts.FeaturesAsWritten.size(); i != e; ++i) 940 Res.push_back("-target-feature", Opts.FeaturesAsWritten[i]); 941 } 942 943 void CompilerInvocation::toArgs(std::vector<std::string> &Res) const { 944 ToArgsList List(Res); 945 AnalyzerOptsToArgs(*getAnalyzerOpts(), List); 946 CodeGenOptsToArgs(getCodeGenOpts(), List); 947 DependencyOutputOptsToArgs(getDependencyOutputOpts(), List); 948 DiagnosticOptsToArgs(getDiagnosticOpts(), List); 949 FileSystemOptsToArgs(getFileSystemOpts(), List); 950 FrontendOptsToArgs(getFrontendOpts(), List); 951 HeaderSearchOptsToArgs(getHeaderSearchOpts(), List); 952 LangOptsToArgs(*getLangOpts(), List); 953 PreprocessorOptsToArgs(getPreprocessorOpts(), List); 954 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), List); 955 TargetOptsToArgs(getTargetOpts(), List); 956 } 957 958 //===----------------------------------------------------------------------===// 959 // Deserialization (to args) 960 //===----------------------------------------------------------------------===// 961 962 using namespace clang::driver; 963 using namespace clang::driver::options; 964 965 // 966 967 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 968 DiagnosticsEngine &Diags) { 969 unsigned DefaultOpt = 0; 970 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 971 DefaultOpt = 2; 972 973 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 974 if (A->getOption().matches(options::OPT_O0)) 975 return 0; 976 977 assert (A->getOption().matches(options::OPT_O)); 978 979 llvm::StringRef S(A->getValue(Args)); 980 if (S == "s" || S == "z" || S.empty()) 981 return 2; 982 983 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 984 } 985 986 return DefaultOpt; 987 } 988 989 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 990 DiagnosticsEngine &Diags) { 991 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 992 if (A->getOption().matches(options::OPT_O)) { 993 switch (A->getValue(Args)[0]) { 994 default: 995 return 0; 996 case 's': 997 return 1; 998 case 'z': 999 return 2; 1000 } 1001 } 1002 } 1003 return 0; 1004 } 1005 1006 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 1007 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 1008 E = Args.filtered_end(); I != E; ++I) { 1009 Arg *A = *I; 1010 // If the argument is a pure flag, add its name (minus the "W" at the beginning) 1011 // to the warning list. Else, add its value (for the OPT_W case). 1012 if (A->getOption().getKind() == Option::FlagClass) { 1013 Warnings.push_back(A->getOption().getName().substr(1)); 1014 } else { 1015 for (unsigned Idx = 0, End = A->getNumValues(); 1016 Idx < End; ++Idx) { 1017 StringRef V = A->getValue(Args, Idx); 1018 // "-Wl," and such are not warning options. 1019 // FIXME: Should be handled by putting these in separate flags. 1020 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 1021 continue; 1022 1023 Warnings.push_back(V); 1024 } 1025 } 1026 } 1027 } 1028 1029 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1030 DiagnosticsEngine &Diags) { 1031 using namespace options; 1032 bool Success = true; 1033 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 1034 StringRef Name = A->getValue(Args); 1035 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 1036 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 1037 .Case(CMDFLAG, NAME##Model) 1038 #include "clang/StaticAnalyzer/Core/Analyses.def" 1039 .Default(NumStores); 1040 if (Value == NumStores) { 1041 Diags.Report(diag::err_drv_invalid_value) 1042 << A->getAsString(Args) << Name; 1043 Success = false; 1044 } else { 1045 Opts.AnalysisStoreOpt = Value; 1046 } 1047 } 1048 1049 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1050 StringRef Name = A->getValue(Args); 1051 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1052 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1053 .Case(CMDFLAG, NAME##Model) 1054 #include "clang/StaticAnalyzer/Core/Analyses.def" 1055 .Default(NumConstraints); 1056 if (Value == NumConstraints) { 1057 Diags.Report(diag::err_drv_invalid_value) 1058 << A->getAsString(Args) << Name; 1059 Success = false; 1060 } else { 1061 Opts.AnalysisConstraintsOpt = Value; 1062 } 1063 } 1064 1065 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1066 StringRef Name = A->getValue(Args); 1067 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1068 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 1069 .Case(CMDFLAG, PD_##NAME) 1070 #include "clang/StaticAnalyzer/Core/Analyses.def" 1071 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1072 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1073 Diags.Report(diag::err_drv_invalid_value) 1074 << A->getAsString(Args) << Name; 1075 Success = false; 1076 } else { 1077 Opts.AnalysisDiagOpt = Value; 1078 } 1079 } 1080 1081 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1082 StringRef Name = A->getValue(Args); 1083 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1084 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1085 .Case(CMDFLAG, NAME) 1086 #include "clang/StaticAnalyzer/Core/Analyses.def" 1087 .Default(NumPurgeModes); 1088 if (Value == NumPurgeModes) { 1089 Diags.Report(diag::err_drv_invalid_value) 1090 << A->getAsString(Args) << Name; 1091 Success = false; 1092 } else { 1093 Opts.AnalysisPurgeOpt = Value; 1094 } 1095 } 1096 1097 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 1098 StringRef Name = A->getValue(Args); 1099 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 1100 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 1101 .Case(CMDFLAG, NAME) 1102 #include "clang/StaticAnalyzer/Core/Analyses.def" 1103 .Default(NumIPAModes); 1104 if (Value == NumIPAModes) { 1105 Diags.Report(diag::err_drv_invalid_value) 1106 << A->getAsString(Args) << Name; 1107 Success = false; 1108 } else { 1109 Opts.IPAMode = Value; 1110 } 1111 } 1112 1113 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1114 StringRef Name = A->getValue(Args); 1115 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1116 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1117 .Case(CMDFLAG, NAME) 1118 #include "clang/StaticAnalyzer/Core/Analyses.def" 1119 .Default(NumInliningModes); 1120 if (Value == NumInliningModes) { 1121 Diags.Report(diag::err_drv_invalid_value) 1122 << A->getAsString(Args) << Name; 1123 Success = false; 1124 } else { 1125 Opts.InliningMode = Value; 1126 } 1127 } 1128 1129 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 1130 Opts.visualizeExplodedGraphWithGraphViz = 1131 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 1132 Opts.visualizeExplodedGraphWithUbiGraph = 1133 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 1134 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 1135 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 1136 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 1137 Opts.AnalyzeNestedBlocks = 1138 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 1139 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 1140 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 1141 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 1142 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 1143 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 1144 Opts.maxBlockVisitOnPath = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 1145 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 1146 Opts.InlineMaxStackDepth = 1147 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 1148 Opts.InlineMaxStackDepth, Diags); 1149 Opts.InlineMaxFunctionSize = 1150 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 1151 Opts.InlineMaxFunctionSize, Diags); 1152 1153 Opts.CheckersControlList.clear(); 1154 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 1155 OPT_analyzer_disable_checker), 1156 ie = Args.filtered_end(); it != ie; ++it) { 1157 const Arg *A = *it; 1158 A->claim(); 1159 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 1160 // We can have a list of comma separated checker names, e.g: 1161 // '-analyzer-checker=cocoa,unix' 1162 StringRef checkerList = A->getValue(Args); 1163 SmallVector<StringRef, 4> checkers; 1164 checkerList.split(checkers, ","); 1165 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 1166 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 1167 } 1168 1169 // Go through the analyzer configuration options. 1170 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 1171 ie = Args.filtered_end(); it != ie; ++it) { 1172 const Arg *A = *it; 1173 A->claim(); 1174 // We can have a list of comma separated config names, e.g: 1175 // '-analyzer-config key1=val1,key2=val2' 1176 StringRef configList = A->getValue(Args); 1177 SmallVector<StringRef, 4> configVals; 1178 configList.split(configVals, ","); 1179 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 1180 StringRef key, val; 1181 llvm::tie(key, val) = configVals[i].split("="); 1182 if (val.empty()) { 1183 Diags.Report(SourceLocation(), 1184 diag::err_analyzer_config_no_value) << configVals[i]; 1185 Success = false; 1186 break; 1187 } 1188 if (val.find('=') != StringRef::npos) { 1189 Diags.Report(SourceLocation(), 1190 diag::err_analyzer_config_multiple_values) 1191 << configVals[i]; 1192 Success = false; 1193 break; 1194 } 1195 Opts.Config[key] = val; 1196 } 1197 } 1198 1199 return Success; 1200 } 1201 1202 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 1203 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 1204 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 1205 return true; 1206 } 1207 1208 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1209 DiagnosticsEngine &Diags) { 1210 using namespace options; 1211 bool Success = true; 1212 1213 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 1214 if (OptLevel > 3) { 1215 Diags.Report(diag::err_drv_invalid_value) 1216 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 1217 OptLevel = 3; 1218 Success = false; 1219 } 1220 Opts.OptimizationLevel = OptLevel; 1221 1222 // We must always run at least the always inlining pass. 1223 Opts.setInlining( 1224 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 1225 : CodeGenOptions::OnlyAlwaysInlining); 1226 // -fno-inline-functions overrides OptimizationLevel > 1. 1227 Opts.NoInline = Args.hasArg(OPT_fno_inline); 1228 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 1229 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 1230 1231 if (Args.hasArg(OPT_gline_tables_only)) { 1232 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 1233 } else if (Args.hasArg(OPT_g_Flag)) { 1234 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 1235 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 1236 else 1237 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 1238 } 1239 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 1240 1241 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 1242 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 1243 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 1244 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 1245 OPT_fuse_register_sized_bitfield_access); 1246 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 1247 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 1248 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 1249 Opts.NoCommon = Args.hasArg(OPT_fno_common); 1250 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 1251 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 1252 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1253 Args.hasArg(OPT_ffreestanding)); 1254 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 1255 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 1256 1257 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 1258 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1259 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 1260 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1261 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1262 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 1263 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 1264 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 1265 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1266 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 1267 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 1268 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 1269 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 1270 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 1271 Args.hasArg(OPT_cl_finite_math_only)|| 1272 Args.hasArg(OPT_cl_fast_relaxed_math)); 1273 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 1274 Args.hasArg(OPT_cl_finite_math_only)|| 1275 Args.hasArg(OPT_cl_fast_relaxed_math)); 1276 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 1277 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 1278 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 1279 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 1280 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1281 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1282 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 1283 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1284 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 1285 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1286 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1287 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1288 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1289 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1290 Args.hasArg(OPT_cl_fast_relaxed_math); 1291 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1292 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 1293 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 1294 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 1295 Diags); 1296 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 1297 1298 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1299 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1300 1301 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 1302 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1303 1304 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1305 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1306 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1307 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1308 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1309 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 1310 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1311 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 1312 Opts.SSPBufferSize = 1313 Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags); 1314 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1315 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1316 StringRef Val = A->getValue(Args); 1317 unsigned StackAlignment = Opts.StackAlignment; 1318 Val.getAsInteger(10, StackAlignment); 1319 Opts.StackAlignment = StackAlignment; 1320 } 1321 1322 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1323 StringRef Name = A->getValue(Args); 1324 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1325 .Case("legacy", CodeGenOptions::Legacy) 1326 .Case("non-legacy", CodeGenOptions::NonLegacy) 1327 .Case("mixed", CodeGenOptions::Mixed) 1328 .Default(~0U); 1329 if (Method == ~0U) { 1330 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1331 Success = false; 1332 } else { 1333 Opts.setObjCDispatchMethod( 1334 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1335 } 1336 } 1337 1338 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1339 StringRef Name = A->getValue(Args); 1340 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1341 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1342 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1343 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1344 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1345 .Default(~0U); 1346 if (Model == ~0U) { 1347 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1348 Success = false; 1349 } else { 1350 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1351 } 1352 } 1353 1354 return Success; 1355 } 1356 1357 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1358 ArgList &Args) { 1359 using namespace options; 1360 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1361 Opts.Targets = Args.getAllArgValues(OPT_MT); 1362 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1363 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1364 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1365 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1366 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1367 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1368 } 1369 1370 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1371 DiagnosticsEngine *Diags) { 1372 using namespace options; 1373 bool Success = true; 1374 1375 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1376 Opts.DiagnosticSerializationFile = 1377 Args.getLastArgValue(OPT_diagnostic_serialized_file); 1378 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1379 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1380 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1381 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1382 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1383 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 1384 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1385 OPT_fno_show_column, 1386 /*Default=*/true); 1387 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1388 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1389 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 1390 1391 // Default behavior is to not to show note include stacks. 1392 Opts.ShowNoteIncludeStack = false; 1393 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1394 OPT_fno_diagnostics_show_note_include_stack)) 1395 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1396 Opts.ShowNoteIncludeStack = true; 1397 1398 StringRef ShowOverloads = 1399 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1400 if (ShowOverloads == "best") 1401 Opts.setShowOverloads(Ovl_Best); 1402 else if (ShowOverloads == "all") 1403 Opts.setShowOverloads(Ovl_All); 1404 else { 1405 Success = false; 1406 if (Diags) 1407 Diags->Report(diag::err_drv_invalid_value) 1408 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1409 << ShowOverloads; 1410 } 1411 1412 StringRef ShowCategory = 1413 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1414 if (ShowCategory == "none") 1415 Opts.ShowCategories = 0; 1416 else if (ShowCategory == "id") 1417 Opts.ShowCategories = 1; 1418 else if (ShowCategory == "name") 1419 Opts.ShowCategories = 2; 1420 else { 1421 Success = false; 1422 if (Diags) 1423 Diags->Report(diag::err_drv_invalid_value) 1424 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1425 << ShowCategory; 1426 } 1427 1428 StringRef Format = 1429 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1430 if (Format == "clang") 1431 Opts.setFormat(DiagnosticOptions::Clang); 1432 else if (Format == "msvc") 1433 Opts.setFormat(DiagnosticOptions::Msvc); 1434 else if (Format == "vi") 1435 Opts.setFormat(DiagnosticOptions::Vi); 1436 else { 1437 Success = false; 1438 if (Diags) 1439 Diags->Report(diag::err_drv_invalid_value) 1440 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1441 << Format; 1442 } 1443 1444 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1445 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1446 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1447 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1448 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1449 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 1450 Opts.MacroBacktraceLimit 1451 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 1452 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1453 Opts.TemplateBacktraceLimit 1454 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 1455 DiagnosticOptions::DefaultTemplateBacktraceLimit, 1456 Diags); 1457 Opts.ConstexprBacktraceLimit 1458 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 1459 DiagnosticOptions::DefaultConstexprBacktraceLimit, 1460 Diags); 1461 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 1462 DiagnosticOptions::DefaultTabStop, Diags); 1463 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1464 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1465 if (Diags) 1466 Diags->Report(diag::warn_ignoring_ftabstop_value) 1467 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1468 } 1469 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 1470 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 1471 addWarningArgs(Args, Opts.Warnings); 1472 1473 return Success; 1474 } 1475 1476 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1477 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1478 } 1479 1480 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1481 DiagnosticsEngine &Diags) { 1482 using namespace options; 1483 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1484 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1485 switch (A->getOption().getID()) { 1486 default: 1487 llvm_unreachable("Invalid option in group!"); 1488 case OPT_ast_list: 1489 Opts.ProgramAction = frontend::ASTDeclList; break; 1490 case OPT_ast_dump: 1491 Opts.ProgramAction = frontend::ASTDump; break; 1492 case OPT_ast_dump_xml: 1493 Opts.ProgramAction = frontend::ASTDumpXML; break; 1494 case OPT_ast_print: 1495 Opts.ProgramAction = frontend::ASTPrint; break; 1496 case OPT_ast_view: 1497 Opts.ProgramAction = frontend::ASTView; break; 1498 case OPT_dump_raw_tokens: 1499 Opts.ProgramAction = frontend::DumpRawTokens; break; 1500 case OPT_dump_tokens: 1501 Opts.ProgramAction = frontend::DumpTokens; break; 1502 case OPT_S: 1503 Opts.ProgramAction = frontend::EmitAssembly; break; 1504 case OPT_emit_llvm_bc: 1505 Opts.ProgramAction = frontend::EmitBC; break; 1506 case OPT_emit_html: 1507 Opts.ProgramAction = frontend::EmitHTML; break; 1508 case OPT_emit_llvm: 1509 Opts.ProgramAction = frontend::EmitLLVM; break; 1510 case OPT_emit_llvm_only: 1511 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1512 case OPT_emit_codegen_only: 1513 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1514 case OPT_emit_obj: 1515 Opts.ProgramAction = frontend::EmitObj; break; 1516 case OPT_fixit_EQ: 1517 Opts.FixItSuffix = A->getValue(Args); 1518 // fall-through! 1519 case OPT_fixit: 1520 Opts.ProgramAction = frontend::FixIt; break; 1521 case OPT_emit_module: 1522 Opts.ProgramAction = frontend::GenerateModule; break; 1523 case OPT_emit_pch: 1524 Opts.ProgramAction = frontend::GeneratePCH; break; 1525 case OPT_emit_pth: 1526 Opts.ProgramAction = frontend::GeneratePTH; break; 1527 case OPT_init_only: 1528 Opts.ProgramAction = frontend::InitOnly; break; 1529 case OPT_fsyntax_only: 1530 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1531 case OPT_print_decl_contexts: 1532 Opts.ProgramAction = frontend::PrintDeclContext; break; 1533 case OPT_print_preamble: 1534 Opts.ProgramAction = frontend::PrintPreamble; break; 1535 case OPT_E: 1536 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1537 case OPT_rewrite_macros: 1538 Opts.ProgramAction = frontend::RewriteMacros; break; 1539 case OPT_rewrite_objc: 1540 Opts.ProgramAction = frontend::RewriteObjC; break; 1541 case OPT_rewrite_test: 1542 Opts.ProgramAction = frontend::RewriteTest; break; 1543 case OPT_analyze: 1544 Opts.ProgramAction = frontend::RunAnalysis; break; 1545 case OPT_migrate: 1546 Opts.ProgramAction = frontend::MigrateSource; break; 1547 case OPT_Eonly: 1548 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1549 } 1550 } 1551 1552 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1553 Opts.Plugins.push_back(A->getValue(Args,0)); 1554 Opts.ProgramAction = frontend::PluginAction; 1555 Opts.ActionName = A->getValue(Args); 1556 1557 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1558 end = Args.filtered_end(); it != end; ++it) { 1559 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1560 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1561 } 1562 } 1563 1564 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1565 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 1566 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 1567 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1568 end = Args.filtered_end(); it != end; ++it) { 1569 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 1570 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 1571 } 1572 } 1573 1574 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1575 Opts.CodeCompletionAt = 1576 ParsedSourceLocation::FromString(A->getValue(Args)); 1577 if (Opts.CodeCompletionAt.FileName.empty()) 1578 Diags.Report(diag::err_drv_invalid_value) 1579 << A->getAsString(Args) << A->getValue(Args); 1580 } 1581 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1582 1583 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1584 Opts.Plugins = Args.getAllArgValues(OPT_load); 1585 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1586 Opts.ShowHelp = Args.hasArg(OPT_help); 1587 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1588 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1589 Opts.ShowVersion = Args.hasArg(OPT_version); 1590 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1591 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1592 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1593 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1594 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1595 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1596 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1597 1598 Opts.CodeCompleteOpts.IncludeMacros 1599 = Args.hasArg(OPT_code_completion_macros); 1600 Opts.CodeCompleteOpts.IncludeCodePatterns 1601 = Args.hasArg(OPT_code_completion_patterns); 1602 Opts.CodeCompleteOpts.IncludeGlobals 1603 = !Args.hasArg(OPT_no_code_completion_globals); 1604 Opts.CodeCompleteOpts.IncludeBriefComments 1605 = Args.hasArg(OPT_code_completion_brief_comments); 1606 1607 Opts.OverrideRecordLayoutsFile 1608 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1609 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1610 OPT_arcmt_modify, 1611 OPT_arcmt_migrate)) { 1612 switch (A->getOption().getID()) { 1613 default: 1614 llvm_unreachable("missed a case"); 1615 case OPT_arcmt_check: 1616 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1617 break; 1618 case OPT_arcmt_modify: 1619 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1620 break; 1621 case OPT_arcmt_migrate: 1622 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1623 break; 1624 } 1625 } 1626 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1627 Opts.ARCMTMigrateReportOut 1628 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1629 Opts.ARCMTMigrateEmitARCErrors 1630 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1631 1632 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1633 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1634 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1635 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1636 1637 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1638 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1639 Diags.Report(diag::err_drv_argument_not_allowed_with) 1640 << "ARC migration" << "ObjC migration"; 1641 } 1642 1643 InputKind DashX = IK_None; 1644 if (const Arg *A = Args.getLastArg(OPT_x)) { 1645 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1646 .Case("c", IK_C) 1647 .Case("cl", IK_OpenCL) 1648 .Case("cuda", IK_CUDA) 1649 .Case("c++", IK_CXX) 1650 .Case("objective-c", IK_ObjC) 1651 .Case("objective-c++", IK_ObjCXX) 1652 .Case("cpp-output", IK_PreprocessedC) 1653 .Case("assembler-with-cpp", IK_Asm) 1654 .Case("c++-cpp-output", IK_PreprocessedCXX) 1655 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1656 .Case("objc-cpp-output", IK_PreprocessedObjC) 1657 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1658 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1659 .Case("c-header", IK_C) 1660 .Case("cl-header", IK_OpenCL) 1661 .Case("objective-c-header", IK_ObjC) 1662 .Case("c++-header", IK_CXX) 1663 .Case("objective-c++-header", IK_ObjCXX) 1664 .Case("ast", IK_AST) 1665 .Case("ir", IK_LLVM_IR) 1666 .Default(IK_None); 1667 if (DashX == IK_None) 1668 Diags.Report(diag::err_drv_invalid_value) 1669 << A->getAsString(Args) << A->getValue(Args); 1670 } 1671 1672 // '-' is the default input if none is given. 1673 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1674 Opts.Inputs.clear(); 1675 if (Inputs.empty()) 1676 Inputs.push_back("-"); 1677 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1678 InputKind IK = DashX; 1679 if (IK == IK_None) { 1680 IK = FrontendOptions::getInputKindForExtension( 1681 StringRef(Inputs[i]).rsplit('.').second); 1682 // FIXME: Remove this hack. 1683 if (i == 0) 1684 DashX = IK; 1685 } 1686 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1687 } 1688 1689 return DashX; 1690 } 1691 1692 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1693 void *MainAddr) { 1694 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1695 1696 if (!P.isEmpty()) { 1697 P.eraseComponent(); // Remove /clang from foo/bin/clang 1698 P.eraseComponent(); // Remove /bin from foo/bin 1699 1700 // Get foo/lib/clang/<version>/include 1701 P.appendComponent("lib"); 1702 P.appendComponent("clang"); 1703 P.appendComponent(CLANG_VERSION_STRING); 1704 } 1705 1706 return P.str(); 1707 } 1708 1709 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1710 using namespace options; 1711 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1712 Opts.Verbose = Args.hasArg(OPT_v); 1713 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1714 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1715 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1716 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1717 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 1718 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1719 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 1720 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1721 1722 // Add -I..., -F..., and -index-header-map options in order. 1723 bool IsIndexHeaderMap = false; 1724 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1725 OPT_index_header_map), 1726 ie = Args.filtered_end(); it != ie; ++it) { 1727 if ((*it)->getOption().matches(OPT_index_header_map)) { 1728 // -index-header-map applies to the next -I or -F. 1729 IsIndexHeaderMap = true; 1730 continue; 1731 } 1732 1733 frontend::IncludeDirGroup Group 1734 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1735 1736 Opts.AddPath((*it)->getValue(Args), Group, true, 1737 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 1738 IsIndexHeaderMap = false; 1739 } 1740 1741 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1742 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1743 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1744 OPT_iwithprefixbefore), 1745 ie = Args.filtered_end(); it != ie; ++it) { 1746 const Arg *A = *it; 1747 if (A->getOption().matches(OPT_iprefix)) 1748 Prefix = A->getValue(Args); 1749 else if (A->getOption().matches(OPT_iwithprefix)) 1750 Opts.AddPath(Prefix.str() + A->getValue(Args), 1751 frontend::System, false, false, false); 1752 else 1753 Opts.AddPath(Prefix.str() + A->getValue(Args), 1754 frontend::Angled, false, false, false); 1755 } 1756 1757 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1758 ie = Args.filtered_end(); it != ie; ++it) 1759 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 1760 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1761 ie = Args.filtered_end(); it != ie; ++it) 1762 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 1763 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1764 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1765 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 1766 !(*it)->getOption().matches(OPT_iwithsysroot)); 1767 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1768 ie = Args.filtered_end(); it != ie; ++it) 1769 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true, 1770 true); 1771 1772 // Add the paths for the various language specific isystem flags. 1773 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1774 ie = Args.filtered_end(); it != ie; ++it) 1775 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 1776 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1777 ie = Args.filtered_end(); it != ie; ++it) 1778 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 1779 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1780 ie = Args.filtered_end(); it != ie; ++it) 1781 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 1782 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1783 ie = Args.filtered_end(); it != ie; ++it) 1784 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 1785 true); 1786 1787 // Add the internal paths from a driver that detects standard include paths. 1788 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1789 OPT_internal_externc_isystem), 1790 E = Args.filtered_end(); 1791 I != E; ++I) 1792 Opts.AddPath((*I)->getValue(Args), frontend::System, 1793 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 1794 (*I)->getOption().matches(OPT_internal_externc_isystem)); 1795 1796 // Add the path prefixes which are implicitly treated as being system headers. 1797 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 1798 OPT_ino_system_prefix), 1799 E = Args.filtered_end(); 1800 I != E; ++I) 1801 Opts.AddSystemHeaderPrefix((*I)->getValue(Args), 1802 (*I)->getOption().matches(OPT_isystem_prefix)); 1803 } 1804 1805 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1806 LangStandard::Kind LangStd) { 1807 // Set some properties which depend solely on the input kind; it would be nice 1808 // to move these to the language standard, and have the driver resolve the 1809 // input kind + language standard. 1810 if (IK == IK_Asm) { 1811 Opts.AsmPreprocessor = 1; 1812 } else if (IK == IK_ObjC || 1813 IK == IK_ObjCXX || 1814 IK == IK_PreprocessedObjC || 1815 IK == IK_PreprocessedObjCXX) { 1816 Opts.ObjC1 = Opts.ObjC2 = 1; 1817 } 1818 1819 if (LangStd == LangStandard::lang_unspecified) { 1820 // Based on the base language, pick one. 1821 switch (IK) { 1822 case IK_None: 1823 case IK_AST: 1824 case IK_LLVM_IR: 1825 llvm_unreachable("Invalid input kind!"); 1826 case IK_OpenCL: 1827 LangStd = LangStandard::lang_opencl; 1828 break; 1829 case IK_CUDA: 1830 LangStd = LangStandard::lang_cuda; 1831 break; 1832 case IK_Asm: 1833 case IK_C: 1834 case IK_PreprocessedC: 1835 case IK_ObjC: 1836 case IK_PreprocessedObjC: 1837 LangStd = LangStandard::lang_gnu99; 1838 break; 1839 case IK_CXX: 1840 case IK_PreprocessedCXX: 1841 case IK_ObjCXX: 1842 case IK_PreprocessedObjCXX: 1843 LangStd = LangStandard::lang_gnucxx98; 1844 break; 1845 } 1846 } 1847 1848 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1849 Opts.BCPLComment = Std.hasBCPLComments(); 1850 Opts.C99 = Std.isC99(); 1851 Opts.C11 = Std.isC11(); 1852 Opts.CPlusPlus = Std.isCPlusPlus(); 1853 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1854 Opts.CPlusPlus1y = Std.isCPlusPlus1y(); 1855 Opts.Digraphs = Std.hasDigraphs(); 1856 Opts.GNUMode = Std.isGNUMode(); 1857 Opts.GNUInline = !Std.isC99(); 1858 Opts.HexFloats = Std.hasHexFloats(); 1859 Opts.ImplicitInt = Std.hasImplicitInt(); 1860 1861 // Set OpenCL Version. 1862 if (LangStd == LangStandard::lang_opencl) { 1863 Opts.OpenCL = 1; 1864 Opts.OpenCLVersion = 100; 1865 } 1866 else if (LangStd == LangStandard::lang_opencl11) { 1867 Opts.OpenCL = 1; 1868 Opts.OpenCLVersion = 110; 1869 } 1870 else if (LangStd == LangStandard::lang_opencl12) { 1871 Opts.OpenCL = 1; 1872 Opts.OpenCLVersion = 120; 1873 } 1874 1875 // OpenCL has some additional defaults. 1876 if (Opts.OpenCL) { 1877 Opts.AltiVec = 0; 1878 Opts.CXXOperatorNames = 1; 1879 Opts.LaxVectorConversions = 0; 1880 Opts.DefaultFPContract = 1; 1881 } 1882 1883 if (LangStd == LangStandard::lang_cuda) 1884 Opts.CUDA = 1; 1885 1886 // OpenCL and C++ both have bool, true, false keywords. 1887 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1888 1889 // C++ has wchar_t keyword. 1890 Opts.WChar = Opts.CPlusPlus; 1891 1892 Opts.GNUKeywords = Opts.GNUMode; 1893 Opts.CXXOperatorNames = Opts.CPlusPlus; 1894 1895 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1896 // is specified, or -std is set to a conforming mode. 1897 Opts.Trigraphs = !Opts.GNUMode; 1898 1899 Opts.DollarIdents = !Opts.AsmPreprocessor; 1900 } 1901 1902 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1903 DiagnosticsEngine &Diags) { 1904 // FIXME: Cleanup per-file based stuff. 1905 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1906 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1907 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1908 #define LANGSTANDARD(id, name, desc, features) \ 1909 .Case(name, LangStandard::lang_##id) 1910 #include "clang/Frontend/LangStandards.def" 1911 .Default(LangStandard::lang_unspecified); 1912 if (LangStd == LangStandard::lang_unspecified) 1913 Diags.Report(diag::err_drv_invalid_value) 1914 << A->getAsString(Args) << A->getValue(Args); 1915 else { 1916 // Valid standard, check to make sure language and standard are compatable. 1917 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1918 switch (IK) { 1919 case IK_C: 1920 case IK_ObjC: 1921 case IK_PreprocessedC: 1922 case IK_PreprocessedObjC: 1923 if (!(Std.isC89() || Std.isC99())) 1924 Diags.Report(diag::err_drv_argument_not_allowed_with) 1925 << A->getAsString(Args) << "C/ObjC"; 1926 break; 1927 case IK_CXX: 1928 case IK_ObjCXX: 1929 case IK_PreprocessedCXX: 1930 case IK_PreprocessedObjCXX: 1931 if (!Std.isCPlusPlus()) 1932 Diags.Report(diag::err_drv_argument_not_allowed_with) 1933 << A->getAsString(Args) << "C++/ObjC++"; 1934 break; 1935 case IK_OpenCL: 1936 if (!Std.isC99()) 1937 Diags.Report(diag::err_drv_argument_not_allowed_with) 1938 << A->getAsString(Args) << "OpenCL"; 1939 break; 1940 case IK_CUDA: 1941 if (!Std.isCPlusPlus()) 1942 Diags.Report(diag::err_drv_argument_not_allowed_with) 1943 << A->getAsString(Args) << "CUDA"; 1944 break; 1945 default: 1946 break; 1947 } 1948 } 1949 } 1950 1951 // -cl-std only applies for OpenCL language standards. 1952 // Override the -std option in this case. 1953 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1954 LangStandard::Kind OpenCLLangStd 1955 = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1956 .Case("CL", LangStandard::lang_opencl) 1957 .Case("CL1.1", LangStandard::lang_opencl11) 1958 .Case("CL1.2", LangStandard::lang_opencl12) 1959 .Default(LangStandard::lang_unspecified); 1960 1961 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1962 Diags.Report(diag::err_drv_invalid_value) 1963 << A->getAsString(Args) << A->getValue(Args); 1964 } 1965 else 1966 LangStd = OpenCLLangStd; 1967 } 1968 1969 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1970 1971 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1972 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1973 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1974 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1975 // name, as it doesn't seem a useful distinction. 1976 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1977 Opts.GNUKeywords); 1978 1979 if (Args.hasArg(OPT_fno_operator_names)) 1980 Opts.CXXOperatorNames = 0; 1981 1982 if (Opts.ObjC1) { 1983 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1984 StringRef value = arg->getValue(Args); 1985 if (Opts.ObjCRuntime.tryParse(value)) 1986 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1987 } 1988 1989 if (Args.hasArg(OPT_fobjc_gc_only)) 1990 Opts.setGC(LangOptions::GCOnly); 1991 else if (Args.hasArg(OPT_fobjc_gc)) 1992 Opts.setGC(LangOptions::HybridGC); 1993 else if (Args.hasArg(OPT_fobjc_arc)) { 1994 Opts.ObjCAutoRefCount = 1; 1995 if (!Opts.ObjCRuntime.allowsARC()) 1996 Diags.Report(diag::err_arc_unsupported_on_runtime); 1997 1998 // Only set ObjCARCWeak if ARC is enabled. 1999 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2000 Opts.ObjCARCWeak = 1; 2001 else 2002 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 2003 } 2004 2005 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2006 Opts.ObjCInferRelatedResultType = 0; 2007 } 2008 2009 if (Args.hasArg(OPT_fgnu89_inline)) 2010 Opts.GNUInline = 1; 2011 2012 if (Args.hasArg(OPT_fapple_kext)) { 2013 if (!Opts.CPlusPlus) 2014 Diags.Report(diag::warn_c_kext); 2015 else 2016 Opts.AppleKext = 1; 2017 } 2018 2019 if (Args.hasArg(OPT_print_ivar_layout)) 2020 Opts.ObjCGCBitmapPrint = 1; 2021 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2022 Opts.NoConstantCFStrings = 1; 2023 2024 if (Args.hasArg(OPT_faltivec)) 2025 Opts.AltiVec = 1; 2026 2027 if (Args.hasArg(OPT_pthread)) 2028 Opts.POSIXThreads = 1; 2029 2030 if (Args.hasArg(OPT_fdelayed_template_parsing)) 2031 Opts.DelayedTemplateParsing = 1; 2032 2033 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 2034 if (Vis == "default") 2035 Opts.setVisibilityMode(DefaultVisibility); 2036 else if (Vis == "hidden") 2037 Opts.setVisibilityMode(HiddenVisibility); 2038 else if (Vis == "protected") 2039 // FIXME: diagnose if target does not support protected visibility 2040 Opts.setVisibilityMode(ProtectedVisibility); 2041 else 2042 Diags.Report(diag::err_drv_invalid_value) 2043 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 2044 2045 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2046 StringRef Val = A->getValue(Args); 2047 if (Val == "fast") 2048 Opts.setFPContractMode(LangOptions::FPC_Fast); 2049 else if (Val == "on") 2050 Opts.setFPContractMode(LangOptions::FPC_On); 2051 else if (Val == "off") 2052 Opts.setFPContractMode(LangOptions::FPC_Off); 2053 else 2054 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2055 } 2056 2057 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2058 Opts.InlineVisibilityHidden = 1; 2059 2060 if (Args.hasArg(OPT_ftrapv)) { 2061 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2062 // Set the handler, if one is specified. 2063 Opts.OverflowHandler = 2064 Args.getLastArgValue(OPT_ftrapv_handler); 2065 } 2066 else if (Args.hasArg(OPT_fwrapv)) 2067 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2068 2069 if (Args.hasArg(OPT_trigraphs)) 2070 Opts.Trigraphs = 1; 2071 2072 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2073 OPT_fno_dollars_in_identifiers, 2074 Opts.DollarIdents); 2075 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2076 Opts.MicrosoftExt 2077 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 2078 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 2079 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 2080 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2081 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2082 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2083 Opts.ConstStrings); 2084 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2085 Opts.LaxVectorConversions = 0; 2086 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2087 Opts.ThreadsafeStatics = 0; 2088 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2089 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2090 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2091 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2092 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2093 2094 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 2095 Opts.Blocks = Args.hasArg(OPT_fblocks); 2096 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2097 Opts.Modules = Args.hasArg(OPT_fmodules); 2098 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 2099 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2100 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 2101 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2102 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2103 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2104 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 2105 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2106 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2107 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2108 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 2109 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512, 2110 Diags); 2111 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 2112 Diags); 2113 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2114 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 2115 0, Diags); 2116 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2117 Opts.ObjCConstantStringClass = 2118 Args.getLastArgValue(OPT_fconstant_string_class); 2119 Opts.ObjCDefaultSynthProperties = 2120 Args.hasArg(OPT_fobjc_default_synthesize_properties); 2121 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 2122 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2123 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 2124 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 2125 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 2126 Opts.Static = Args.hasArg(OPT_static_define); 2127 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2128 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2129 || Args.hasArg(OPT_fdump_record_layouts); 2130 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2131 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2132 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2133 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2134 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2135 Opts.MRTD = Args.hasArg(OPT_mrtd); 2136 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2137 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2138 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2139 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2140 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2141 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2142 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer); 2143 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer); 2144 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2145 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 2146 2147 // Record whether the __DEPRECATED define was requested. 2148 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2149 OPT_fno_deprecated_macro, 2150 Opts.Deprecated); 2151 2152 // FIXME: Eliminate this dependency. 2153 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2154 OptSize = getOptimizationLevelSize(Args, IK, Diags); 2155 Opts.Optimize = Opt != 0; 2156 Opts.OptimizeSize = OptSize != 0; 2157 2158 // This is the __NO_INLINE__ define, which just depends on things like the 2159 // optimization level and -fno-inline, not actually whether the backend has 2160 // inlining enabled. 2161 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2162 2163 Opts.FastMath = Args.hasArg(OPT_ffast_math); 2164 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 2165 2166 Opts.EmitMicrosoftInlineAsm = Args.hasArg(OPT_fenable_experimental_ms_inline_asm); 2167 2168 Opts.RetainCommentsFromSystemHeaders = 2169 Args.hasArg(OPT_fretain_comments_from_system_headers); 2170 2171 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 2172 switch (SSP) { 2173 default: 2174 Diags.Report(diag::err_drv_invalid_value) 2175 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2176 break; 2177 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2178 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2179 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 2180 } 2181 } 2182 2183 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2184 FileManager &FileMgr, 2185 DiagnosticsEngine &Diags) { 2186 using namespace options; 2187 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2188 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2189 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2190 Opts.TokenCache = A->getValue(Args); 2191 else 2192 Opts.TokenCache = Opts.ImplicitPTHInclude; 2193 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2194 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2195 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2196 2197 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2198 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 2199 ie = Args.filtered_end(); it != ie; ++it) { 2200 const Arg *A = *it; 2201 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 2202 } 2203 2204 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2205 StringRef Value(A->getValue(Args)); 2206 size_t Comma = Value.find(','); 2207 unsigned Bytes = 0; 2208 unsigned EndOfLine = 0; 2209 2210 if (Comma == StringRef::npos || 2211 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2212 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2213 Diags.Report(diag::err_drv_preamble_format); 2214 else { 2215 Opts.PrecompiledPreambleBytes.first = Bytes; 2216 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2217 } 2218 } 2219 2220 // Add macros from the command line. 2221 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 2222 ie = Args.filtered_end(); it != ie; ++it) { 2223 if ((*it)->getOption().matches(OPT_D)) 2224 Opts.addMacroDef((*it)->getValue(Args)); 2225 else 2226 Opts.addMacroUndef((*it)->getValue(Args)); 2227 } 2228 2229 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2230 2231 // Add the ordered list of -includes. 2232 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 2233 OPT_include_pth), 2234 ie = Args.filtered_end(); it != ie; ++it) { 2235 const Arg *A = *it; 2236 Opts.Includes.push_back(A->getValue(Args)); 2237 } 2238 2239 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 2240 ie = Args.filtered_end(); it != ie; ++it) { 2241 const Arg *A = *it; 2242 Opts.ChainedIncludes.push_back(A->getValue(Args)); 2243 } 2244 2245 // Include 'altivec.h' if -faltivec option present 2246 if (Args.hasArg(OPT_faltivec)) 2247 Opts.Includes.push_back("altivec.h"); 2248 2249 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 2250 ie = Args.filtered_end(); it != ie; ++it) { 2251 const Arg *A = *it; 2252 std::pair<StringRef,StringRef> Split = 2253 StringRef(A->getValue(Args)).split(';'); 2254 2255 if (Split.second.empty()) { 2256 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2257 continue; 2258 } 2259 2260 Opts.addRemappedFile(Split.first, Split.second); 2261 } 2262 2263 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2264 StringRef Name = A->getValue(Args); 2265 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2266 .Case("libc++", ARCXX_libcxx) 2267 .Case("libstdc++", ARCXX_libstdcxx) 2268 .Case("none", ARCXX_nolib) 2269 .Default(~0U); 2270 if (Library == ~0U) 2271 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2272 else 2273 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2274 } 2275 } 2276 2277 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2278 ArgList &Args) { 2279 using namespace options; 2280 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2281 Opts.ShowComments = Args.hasArg(OPT_C); 2282 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2283 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2284 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2285 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2286 } 2287 2288 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 2289 using namespace options; 2290 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2291 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 2292 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2293 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2294 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2295 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2296 2297 // Use the default target triple if unspecified. 2298 if (Opts.Triple.empty()) 2299 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2300 } 2301 2302 // 2303 2304 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2305 const char *const *ArgBegin, 2306 const char *const *ArgEnd, 2307 DiagnosticsEngine &Diags) { 2308 bool Success = true; 2309 2310 // Parse the arguments. 2311 OwningPtr<OptTable> Opts(createDriverOptTable()); 2312 unsigned MissingArgIndex, MissingArgCount; 2313 OwningPtr<InputArgList> Args( 2314 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 2315 2316 // Check for missing argument error. 2317 if (MissingArgCount) { 2318 Diags.Report(diag::err_drv_missing_argument) 2319 << Args->getArgString(MissingArgIndex) << MissingArgCount; 2320 Success = false; 2321 } 2322 2323 // Issue errors on unknown arguments. 2324 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 2325 ie = Args->filtered_end(); it != ie; ++it) { 2326 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 2327 Success = false; 2328 } 2329 2330 // Issue errors on arguments that are not valid for CC1. 2331 for (ArgList::iterator I = Args->begin(), E = Args->end(); 2332 I != E; ++I) { 2333 if (!(*I)->getOption().hasFlag(options::CC1Option)) { 2334 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 2335 Success = false; 2336 } 2337 } 2338 2339 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 2340 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 2341 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 2342 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 2343 && Success; 2344 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 2345 // FIXME: We shouldn't have to pass the DashX option around here 2346 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 2347 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 2348 && Success; 2349 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 2350 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 2351 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 2352 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2353 Res.getLangOpts()->ObjCExceptions = 1; 2354 } 2355 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2356 // PCH file and find the original header name. Remove the need to do that in 2357 // ParsePreprocessorArgs and remove the FileManager 2358 // parameters from the function and the "FileManager.h" #include. 2359 FileManager FileMgr(Res.getFileSystemOpts()); 2360 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 2361 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 2362 ParseTargetArgs(Res.getTargetOpts(), *Args); 2363 2364 return Success; 2365 } 2366 2367 namespace { 2368 2369 class ModuleSignature { 2370 llvm::SmallVector<uint64_t, 16> Data; 2371 unsigned CurBit; 2372 uint64_t CurValue; 2373 2374 public: 2375 ModuleSignature() : CurBit(0), CurValue(0) { } 2376 2377 void add(uint64_t Value, unsigned Bits); 2378 void add(StringRef Value); 2379 void flush(); 2380 2381 llvm::APInt getAsInteger() const; 2382 }; 2383 } 2384 2385 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 2386 CurValue |= Value << CurBit; 2387 if (CurBit + NumBits < 64) { 2388 CurBit += NumBits; 2389 return; 2390 } 2391 2392 // Add the current word. 2393 Data.push_back(CurValue); 2394 2395 if (CurBit) 2396 CurValue = Value >> (64-CurBit); 2397 else 2398 CurValue = 0; 2399 CurBit = (CurBit+NumBits) & 63; 2400 } 2401 2402 void ModuleSignature::flush() { 2403 if (CurBit == 0) 2404 return; 2405 2406 Data.push_back(CurValue); 2407 CurBit = 0; 2408 CurValue = 0; 2409 } 2410 2411 void ModuleSignature::add(StringRef Value) { 2412 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 2413 add(*I, 8); 2414 } 2415 2416 llvm::APInt ModuleSignature::getAsInteger() const { 2417 return llvm::APInt(Data.size() * 64, Data); 2418 } 2419 2420 std::string CompilerInvocation::getModuleHash() const { 2421 ModuleSignature Signature; 2422 2423 // Start the signature with the compiler version. 2424 // FIXME: The full version string can be quite long. Omit it from the 2425 // module hash for now to avoid failures where the path name becomes too 2426 // long. An MD5 or similar checksum would work well here. 2427 // Signature.add(getClangFullRepositoryVersion()); 2428 2429 // Extend the signature with the language options 2430 #define LANGOPT(Name, Bits, Default, Description) \ 2431 Signature.add(LangOpts->Name, Bits); 2432 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2433 Signature.add(static_cast<unsigned>(LangOpts->get##Name()), Bits); 2434 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2435 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2436 #include "clang/Basic/LangOptions.def" 2437 2438 // Extend the signature with the target triple 2439 // FIXME: Add target options. 2440 llvm::Triple T(TargetOpts->Triple); 2441 Signature.add((unsigned)T.getArch(), 5); 2442 Signature.add((unsigned)T.getVendor(), 4); 2443 Signature.add((unsigned)T.getOS(), 5); 2444 Signature.add((unsigned)T.getEnvironment(), 4); 2445 2446 // Extend the signature with preprocessor options. 2447 Signature.add(getPreprocessorOpts().UsePredefines, 1); 2448 Signature.add(getPreprocessorOpts().DetailedRecord, 1); 2449 2450 // Hash the preprocessor defines. 2451 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines. 2452 std::vector<StringRef> MacroDefs; 2453 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 2454 I = getPreprocessorOpts().Macros.begin(), 2455 IEnd = getPreprocessorOpts().Macros.end(); 2456 I != IEnd; ++I) { 2457 if (!I->second) 2458 MacroDefs.push_back(I->first); 2459 } 2460 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end()); 2461 2462 unsigned PPHashResult = 0; 2463 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I) 2464 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult); 2465 Signature.add(PPHashResult, 32); 2466 2467 // We've generated the signature. Treat it as one large APInt that we'll 2468 // encode in base-36 and return. 2469 Signature.flush(); 2470 return Signature.getAsInteger().toString(36, /*Signed=*/false); 2471 } 2472