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 40 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 41 : RefCountedBase<CompilerInvocation>(), 42 LangOpts(new LangOptions(*X.getLangOpts())), 43 TargetOpts(new TargetOptions(X.getTargetOpts())) {} 44 45 //===----------------------------------------------------------------------===// 46 // Utility functions. 47 //===----------------------------------------------------------------------===// 48 49 static const char *getAnalysisStoreName(AnalysisStores Kind) { 50 switch (Kind) { 51 default: 52 llvm_unreachable("Unknown analysis store!"); 53 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 54 case NAME##Model: return CMDFLAG; 55 #include "clang/StaticAnalyzer/Core/Analyses.def" 56 } 57 } 58 59 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) { 60 switch (Kind) { 61 default: 62 llvm_unreachable("Unknown analysis constraints!"); 63 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 64 case NAME##Model: return CMDFLAG; 65 #include "clang/StaticAnalyzer/Core/Analyses.def" 66 } 67 } 68 69 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) { 70 switch (Kind) { 71 default: 72 llvm_unreachable("Unknown analysis client!"); 73 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \ 74 case PD_##NAME: return CMDFLAG; 75 #include "clang/StaticAnalyzer/Core/Analyses.def" 76 } 77 } 78 79 static const char *getAnalysisPurgeModeName(AnalysisPurgeMode Kind) { 80 switch (Kind) { 81 default: 82 llvm_unreachable("Unknown analysis purge mode!"); 83 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 84 case NAME: return CMDFLAG; 85 #include "clang/StaticAnalyzer/Core/Analyses.def" 86 } 87 } 88 89 static const char *getAnalysisIPAModeName(AnalysisIPAMode Kind) { 90 switch (Kind) { 91 default: 92 llvm_unreachable("Unknown analysis ipa mode!"); 93 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 94 case NAME: return CMDFLAG; 95 #include "clang/StaticAnalyzer/Core/Analyses.def" 96 } 97 } 98 99 static const char * 100 getAnalysisInliningModeName(AnalysisInliningMode Kind) { 101 switch (Kind) { 102 default: 103 llvm_unreachable("Unknown analysis inlining mode!"); 104 #define ANALYSIS_INLINE_SELECTION(NAME, CMDFLAG, DESC) \ 105 case NAME: return CMDFLAG; 106 #include "clang/StaticAnalyzer/Core/Analyses.def" 107 } 108 } 109 110 //===----------------------------------------------------------------------===// 111 // Serialization (to args) 112 //===----------------------------------------------------------------------===// 113 114 namespace { 115 /// ToArgsList - Helper class to create a list of std::strings. 116 class ToArgsList { 117 std::vector<std::string> &Res; 118 public: 119 explicit ToArgsList(std::vector<std::string> &Res) : Res(Res) {} 120 121 void push_back(StringRef Str) { 122 // Avoid creating a temporary string. 123 Res.push_back(std::string()); 124 Res.back().assign(Str.data(), Str.size()); 125 } 126 127 void push_back(StringRef Str1, StringRef Str2) { 128 push_back(Str1); 129 push_back(Str2); 130 } 131 }; 132 } 133 134 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, ToArgsList &Res) { 135 if (Opts.ShowCheckerHelp) 136 Res.push_back("-analyzer-checker-help"); 137 if (Opts.AnalysisStoreOpt != RegionStoreModel) 138 Res.push_back("-analyzer-store", 139 getAnalysisStoreName(Opts.AnalysisStoreOpt)); 140 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) 141 Res.push_back("-analyzer-constraints", 142 getAnalysisConstraintName(Opts.AnalysisConstraintsOpt)); 143 if (Opts.AnalysisDiagOpt != PD_HTML) 144 Res.push_back("-analyzer-output", 145 getAnalysisDiagClientName(Opts.AnalysisDiagOpt)); 146 if (Opts.AnalysisPurgeOpt != PurgeStmt) 147 Res.push_back("-analyzer-purge", 148 getAnalysisPurgeModeName(Opts.AnalysisPurgeOpt)); 149 if (!Opts.AnalyzeSpecificFunction.empty()) 150 Res.push_back("-analyze-function", Opts.AnalyzeSpecificFunction); 151 if (Opts.IPAMode != DynamicDispatchBifurcate) 152 Res.push_back("-analyzer-ipa", getAnalysisIPAModeName(Opts.IPAMode)); 153 if (Opts.InliningMode != NoRedundancy) 154 Res.push_back("-analyzer-inlining-mode", 155 getAnalysisInliningModeName(Opts.InliningMode)); 156 157 if (Opts.AnalyzeAll) 158 Res.push_back("-analyzer-opt-analyze-headers"); 159 if (Opts.AnalyzerDisplayProgress) 160 Res.push_back("-analyzer-display-progress"); 161 if (Opts.AnalyzeNestedBlocks) 162 Res.push_back("-analyzer-opt-analyze-nested-blocks"); 163 if (Opts.eagerlyAssumeBinOpBifurcation) 164 Res.push_back("-analyzer-eagerly-assume"); 165 if (Opts.TrimGraph) 166 Res.push_back("-trim-egraph"); 167 if (Opts.visualizeExplodedGraphWithGraphViz) 168 Res.push_back("-analyzer-viz-egraph-graphviz"); 169 if (Opts.visualizeExplodedGraphWithUbiGraph) 170 Res.push_back("-analyzer-viz-egraph-ubigraph"); 171 if (Opts.NoRetryExhausted) 172 Res.push_back("-analyzer-disable-retry-exhausted"); 173 174 for (unsigned i = 0, e = Opts.CheckersControlList.size(); i != e; ++i) { 175 const std::pair<std::string, bool> &opt = Opts.CheckersControlList[i]; 176 if (opt.second) 177 Res.push_back("-analyzer-disable-checker"); 178 else 179 Res.push_back("-analyzer-checker"); 180 Res.push_back(opt.first); 181 } 182 } 183 184 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) { 185 switch (Opts.DebugInfo) { 186 case CodeGenOptions::NoDebugInfo: 187 break; 188 case CodeGenOptions::DebugLineTablesOnly: 189 Res.push_back("-gline-tables-only"); 190 break; 191 case CodeGenOptions::LimitedDebugInfo: 192 Res.push_back("-g"); 193 Res.push_back("-flimit-debug-info"); 194 break; 195 case CodeGenOptions::FullDebugInfo: 196 Res.push_back("-g"); 197 Res.push_back("-fno-limit-debug-info"); 198 break; 199 } 200 if (Opts.DebugColumnInfo) 201 Res.push_back("-gcolumn-info"); 202 if (Opts.DisableLLVMOpts) 203 Res.push_back("-disable-llvm-optzns"); 204 if (Opts.DisableRedZone) 205 Res.push_back("-disable-red-zone"); 206 if (Opts.DisableTailCalls) 207 Res.push_back("-mdisable-tail-calls"); 208 if (!Opts.DebugCompilationDir.empty()) 209 Res.push_back("-fdebug-compilation-dir", Opts.DebugCompilationDir); 210 if (!Opts.DwarfDebugFlags.empty()) 211 Res.push_back("-dwarf-debug-flags", Opts.DwarfDebugFlags); 212 if (Opts.EmitGcovArcs) 213 Res.push_back("-femit-coverage-data"); 214 if (Opts.EmitGcovNotes) 215 Res.push_back("-femit-coverage-notes"); 216 if (Opts.EmitOpenCLArgMetadata) 217 Res.push_back("-cl-kernel-arg-info"); 218 if (!Opts.MergeAllConstants) 219 Res.push_back("-fno-merge-all-constants"); 220 if (Opts.NoCommon) 221 Res.push_back("-fno-common"); 222 if (Opts.ForbidGuardVariables) 223 Res.push_back("-fforbid-guard-variables"); 224 if (Opts.UseRegisterSizedBitfieldAccess) 225 Res.push_back("-fuse-register-sized-bitfield-access"); 226 if (Opts.NoImplicitFloat) 227 Res.push_back("-no-implicit-float"); 228 if (Opts.OmitLeafFramePointer) 229 Res.push_back("-momit-leaf-frame-pointer"); 230 if (Opts.OptimizeSize) { 231 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 232 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz"); 233 } else if (Opts.OptimizationLevel != 0) 234 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 235 if (!Opts.MainFileName.empty()) 236 Res.push_back("-main-file-name", Opts.MainFileName); 237 if (Opts.NoInfsFPMath) 238 Res.push_back("-menable-no-infinities"); 239 if (Opts.NoNaNsFPMath) 240 Res.push_back("-menable-no-nans"); 241 // SimplifyLibCalls is only derived. 242 // TimePasses is only derived. 243 // UnitAtATime is unused. 244 // Inlining is only derived. 245 246 // UnrollLoops is derived, but also accepts an option, no 247 // harm in pushing it back here. 248 if (Opts.UnrollLoops) 249 Res.push_back("-funroll-loops"); 250 if (Opts.DataSections) 251 Res.push_back("-fdata-sections"); 252 if (Opts.FunctionSections) 253 Res.push_back("-ffunction-sections"); 254 if (Opts.AsmVerbose) 255 Res.push_back("-masm-verbose"); 256 if (!Opts.CodeModel.empty()) 257 Res.push_back("-mcode-model", Opts.CodeModel); 258 if (Opts.CUDAIsDevice) 259 Res.push_back("-fcuda-is-device"); 260 if (!Opts.CXAAtExit) 261 Res.push_back("-fno-use-cxa-atexit"); 262 if (Opts.CXXCtorDtorAliases) 263 Res.push_back("-mconstructor-aliases"); 264 if (Opts.ObjCAutoRefCountExceptions) 265 Res.push_back("-fobjc-arc-eh"); 266 if (!Opts.DebugPass.empty()) { 267 Res.push_back("-mdebug-pass", Opts.DebugPass); 268 } 269 if (Opts.DisableFPElim) 270 Res.push_back("-mdisable-fp-elim"); 271 if (!Opts.FloatABI.empty()) 272 Res.push_back("-mfloat-abi", Opts.FloatABI); 273 if (!Opts.LimitFloatPrecision.empty()) 274 Res.push_back("-mlimit-float-precision", Opts.LimitFloatPrecision); 275 if (Opts.NoZeroInitializedInBSS) 276 Res.push_back("-mno-zero-initialized-bss"); 277 switch (Opts.getObjCDispatchMethod()) { 278 case CodeGenOptions::Legacy: 279 break; 280 case CodeGenOptions::Mixed: 281 Res.push_back("-fobjc-dispatch-method=mixed"); 282 break; 283 case CodeGenOptions::NonLegacy: 284 Res.push_back("-fobjc-dispatch-method=non-legacy"); 285 break; 286 } 287 if (Opts.BoundsChecking > 0) 288 Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking)); 289 if (Opts.NumRegisterParameters) 290 Res.push_back("-mregparm", llvm::utostr(Opts.NumRegisterParameters)); 291 if (Opts.NoGlobalMerge) 292 Res.push_back("-mno-global-merge"); 293 if (Opts.NoExecStack) 294 Res.push_back("-mnoexecstack"); 295 if (Opts.RelaxAll) 296 Res.push_back("-mrelax-all"); 297 if (Opts.SaveTempLabels) 298 Res.push_back("-msave-temp-labels"); 299 if (Opts.NoDwarf2CFIAsm) 300 Res.push_back("-fno-dwarf2-cfi-asm"); 301 if (Opts.NoDwarfDirectoryAsm) 302 Res.push_back("-fno-dwarf-directory-asm"); 303 if (Opts.SoftFloat) 304 Res.push_back("-msoft-float"); 305 if (Opts.StrictEnums) 306 Res.push_back("-fstrict-enums"); 307 if (Opts.UnwindTables) 308 Res.push_back("-munwind-tables"); 309 if (Opts.RelocationModel != "pic") 310 Res.push_back("-mrelocation-model", Opts.RelocationModel); 311 if (!Opts.VerifyModule) 312 Res.push_back("-disable-llvm-verifier"); 313 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) 314 Res.push_back("-backend-option", Opts.BackendOptions[i]); 315 316 switch (Opts.DefaultTLSModel) { 317 case CodeGenOptions::GeneralDynamicTLSModel: 318 break; 319 case CodeGenOptions::LocalDynamicTLSModel: 320 Res.push_back("-ftls-model=local-dynamic"); 321 break; 322 case CodeGenOptions::InitialExecTLSModel: 323 Res.push_back("-ftls-model=initial-exec"); 324 break; 325 case CodeGenOptions::LocalExecTLSModel: 326 Res.push_back("-ftls-model=local-exec"); 327 break; 328 } 329 } 330 331 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 332 ToArgsList &Res) { 333 if (Opts.IncludeSystemHeaders) 334 Res.push_back("-sys-header-deps"); 335 if (Opts.ShowHeaderIncludes) 336 Res.push_back("-H"); 337 if (!Opts.HeaderIncludeOutputFile.empty()) 338 Res.push_back("-header-include-file", Opts.HeaderIncludeOutputFile); 339 if (Opts.UsePhonyTargets) 340 Res.push_back("-MP"); 341 if (!Opts.OutputFile.empty()) 342 Res.push_back("-dependency-file", Opts.OutputFile); 343 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) 344 Res.push_back("-MT", Opts.Targets[i]); 345 } 346 347 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 348 ToArgsList &Res) { 349 if (Opts.IgnoreWarnings) 350 Res.push_back("-w"); 351 if (Opts.NoRewriteMacros) 352 Res.push_back("-Wno-rewrite-macros"); 353 if (Opts.Pedantic) 354 Res.push_back("-pedantic"); 355 if (Opts.PedanticErrors) 356 Res.push_back("-pedantic-errors"); 357 if (!Opts.ShowColumn) 358 Res.push_back("-fno-show-column"); 359 if (!Opts.ShowLocation) 360 Res.push_back("-fno-show-source-location"); 361 if (!Opts.ShowCarets) 362 Res.push_back("-fno-caret-diagnostics"); 363 if (!Opts.ShowFixits) 364 Res.push_back("-fno-diagnostics-fixit-info"); 365 if (Opts.ShowSourceRanges) 366 Res.push_back("-fdiagnostics-print-source-range-info"); 367 if (Opts.ShowParseableFixits) 368 Res.push_back("-fdiagnostics-parseable-fixits"); 369 if (Opts.ShowColors) 370 Res.push_back("-fcolor-diagnostics"); 371 if (Opts.VerifyDiagnostics) 372 Res.push_back("-verify"); 373 if (Opts.ShowOptionNames) 374 Res.push_back("-fdiagnostics-show-option"); 375 if (Opts.ShowCategories == 1) 376 Res.push_back("-fdiagnostics-show-category=id"); 377 else if (Opts.ShowCategories == 2) 378 Res.push_back("-fdiagnostics-show-category=name"); 379 switch (Opts.Format) { 380 case DiagnosticOptions::Clang: 381 Res.push_back("-fdiagnostics-format=clang"); break; 382 case DiagnosticOptions::Msvc: 383 Res.push_back("-fdiagnostics-format=msvc"); break; 384 case DiagnosticOptions::Vi: 385 Res.push_back("-fdiagnostics-format=vi"); break; 386 } 387 if (Opts.ErrorLimit) 388 Res.push_back("-ferror-limit", llvm::utostr(Opts.ErrorLimit)); 389 if (!Opts.DiagnosticLogFile.empty()) 390 Res.push_back("-diagnostic-log-file", Opts.DiagnosticLogFile); 391 if (Opts.MacroBacktraceLimit 392 != DiagnosticOptions::DefaultMacroBacktraceLimit) 393 Res.push_back("-fmacro-backtrace-limit", 394 llvm::utostr(Opts.MacroBacktraceLimit)); 395 if (Opts.TemplateBacktraceLimit 396 != DiagnosticOptions::DefaultTemplateBacktraceLimit) 397 Res.push_back("-ftemplate-backtrace-limit", 398 llvm::utostr(Opts.TemplateBacktraceLimit)); 399 if (Opts.ConstexprBacktraceLimit 400 != DiagnosticOptions::DefaultConstexprBacktraceLimit) 401 Res.push_back("-fconstexpr-backtrace-limit", 402 llvm::utostr(Opts.ConstexprBacktraceLimit)); 403 404 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) 405 Res.push_back("-ftabstop", llvm::utostr(Opts.TabStop)); 406 if (Opts.MessageLength) 407 Res.push_back("-fmessage-length", llvm::utostr(Opts.MessageLength)); 408 if (!Opts.DumpBuildInformation.empty()) 409 Res.push_back("-dump-build-information", Opts.DumpBuildInformation); 410 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 411 Res.push_back("-W" + Opts.Warnings[i]); 412 } 413 414 static const char *getInputKindName(InputKind Kind) { 415 switch (Kind) { 416 case IK_None: break; 417 case IK_AST: return "ast"; 418 case IK_Asm: return "assembler-with-cpp"; 419 case IK_C: return "c"; 420 case IK_CXX: return "c++"; 421 case IK_LLVM_IR: return "ir"; 422 case IK_ObjC: return "objective-c"; 423 case IK_ObjCXX: return "objective-c++"; 424 case IK_OpenCL: return "cl"; 425 case IK_CUDA: return "cuda"; 426 case IK_PreprocessedC: return "cpp-output"; 427 case IK_PreprocessedCXX: return "c++-cpp-output"; 428 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 429 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 430 } 431 432 llvm_unreachable("Unexpected language kind!"); 433 } 434 435 static const char *getActionName(frontend::ActionKind Kind) { 436 switch (Kind) { 437 case frontend::PluginAction: 438 llvm_unreachable("Invalid kind!"); 439 440 case frontend::ASTDeclList: return "-ast-list"; 441 case frontend::ASTDump: return "-ast-dump"; 442 case frontend::ASTDumpXML: return "-ast-dump-xml"; 443 case frontend::ASTPrint: return "-ast-print"; 444 case frontend::ASTView: return "-ast-view"; 445 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 446 case frontend::DumpTokens: return "-dump-tokens"; 447 case frontend::EmitAssembly: return "-S"; 448 case frontend::EmitBC: return "-emit-llvm-bc"; 449 case frontend::EmitHTML: return "-emit-html"; 450 case frontend::EmitLLVM: return "-emit-llvm"; 451 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 452 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 453 case frontend::EmitObj: return "-emit-obj"; 454 case frontend::FixIt: return "-fixit"; 455 case frontend::GenerateModule: return "-emit-module"; 456 case frontend::GeneratePCH: return "-emit-pch"; 457 case frontend::GeneratePTH: return "-emit-pth"; 458 case frontend::InitOnly: return "-init-only"; 459 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 460 case frontend::PrintDeclContext: return "-print-decl-contexts"; 461 case frontend::PrintPreamble: return "-print-preamble"; 462 case frontend::PrintPreprocessedInput: return "-E"; 463 case frontend::RewriteMacros: return "-rewrite-macros"; 464 case frontend::RewriteObjC: return "-rewrite-objc"; 465 case frontend::RewriteTest: return "-rewrite-test"; 466 case frontend::RunAnalysis: return "-analyze"; 467 case frontend::MigrateSource: return "-migrate"; 468 case frontend::RunPreprocessorOnly: return "-Eonly"; 469 } 470 471 llvm_unreachable("Unexpected language kind!"); 472 } 473 474 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, ToArgsList &Res){ 475 if (!Opts.WorkingDir.empty()) 476 Res.push_back("-working-directory", Opts.WorkingDir); 477 } 478 479 static void CodeCompleteOptionsToArgs(const CodeCompleteOptions &Opts, 480 ToArgsList &Res) { 481 if (Opts.IncludeMacros) 482 Res.push_back("-code-completion-macros"); 483 if (Opts.IncludeCodePatterns) 484 Res.push_back("-code-completion-patterns"); 485 if (!Opts.IncludeGlobals) 486 Res.push_back("-no-code-completion-globals"); 487 if (Opts.IncludeBriefComments) 488 Res.push_back("-code-completion-brief-comments"); 489 } 490 491 static void FrontendOptsToArgs(const FrontendOptions &Opts, ToArgsList &Res) { 492 if (Opts.DisableFree) 493 Res.push_back("-disable-free"); 494 if (Opts.RelocatablePCH) 495 Res.push_back("-relocatable-pch"); 496 if (Opts.ShowHelp) 497 Res.push_back("-help"); 498 if (Opts.ShowStats) 499 Res.push_back("-print-stats"); 500 if (Opts.ShowTimers) 501 Res.push_back("-ftime-report"); 502 if (Opts.ShowVersion) 503 Res.push_back("-version"); 504 if (Opts.FixWhatYouCan) 505 Res.push_back("-fix-what-you-can"); 506 if (Opts.FixOnlyWarnings) 507 Res.push_back("-fix-only-warnings"); 508 if (Opts.FixAndRecompile) 509 Res.push_back("-fixit-recompile"); 510 if (Opts.FixToTemporaries) 511 Res.push_back("-fixit-to-temporary"); 512 switch (Opts.ARCMTAction) { 513 case FrontendOptions::ARCMT_None: 514 break; 515 case FrontendOptions::ARCMT_Check: 516 Res.push_back("-arcmt-check"); 517 break; 518 case FrontendOptions::ARCMT_Modify: 519 Res.push_back("-arcmt-modify"); 520 break; 521 case FrontendOptions::ARCMT_Migrate: 522 Res.push_back("-arcmt-migrate"); 523 break; 524 } 525 CodeCompleteOptionsToArgs(Opts.CodeCompleteOpts, Res); 526 if (!Opts.MTMigrateDir.empty()) 527 Res.push_back("-mt-migrate-directory", Opts.MTMigrateDir); 528 if (!Opts.ARCMTMigrateReportOut.empty()) 529 Res.push_back("-arcmt-migrate-report-output", Opts.ARCMTMigrateReportOut); 530 if (Opts.ARCMTMigrateEmitARCErrors) 531 Res.push_back("-arcmt-migrate-emit-errors"); 532 533 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Literals) 534 Res.push_back("-objcmt-migrate-literals"); 535 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting) 536 Res.push_back("-objcmt-migrate-subscripting"); 537 538 bool NeedLang = false; 539 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 540 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].File) != 541 Opts.Inputs[i].Kind) 542 NeedLang = true; 543 if (NeedLang) 544 Res.push_back("-x", getInputKindName(Opts.Inputs[0].Kind)); 545 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 546 assert((!NeedLang || Opts.Inputs[i].Kind == Opts.Inputs[0].Kind) && 547 "Unable to represent this input vector!"); 548 Res.push_back(Opts.Inputs[i].File); 549 } 550 551 if (!Opts.OutputFile.empty()) 552 Res.push_back("-o", Opts.OutputFile); 553 if (!Opts.CodeCompletionAt.FileName.empty()) 554 Res.push_back("-code-completion-at", 555 Opts.CodeCompletionAt.FileName + ":" + 556 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 557 llvm::utostr(Opts.CodeCompletionAt.Column)); 558 if (Opts.ProgramAction != frontend::PluginAction) 559 Res.push_back(getActionName(Opts.ProgramAction)); 560 if (!Opts.ActionName.empty()) { 561 Res.push_back("-plugin", Opts.ActionName); 562 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) 563 Res.push_back("-plugin-arg-" + Opts.ActionName, Opts.PluginArgs[i]); 564 } 565 if (!Opts.ASTDumpFilter.empty()) 566 Res.push_back("-ast-dump-filter", Opts.ASTDumpFilter); 567 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) 568 Res.push_back("-load", Opts.Plugins[i]); 569 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 570 Res.push_back("-add-plugin", Opts.AddPluginActions[i]); 571 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai) 572 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i], 573 Opts.AddPluginArgs[i][ai]); 574 } 575 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) 576 Res.push_back("-ast-merge", Opts.ASTMergeFiles[i]); 577 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) 578 Res.push_back("-mllvm", Opts.LLVMArgs[i]); 579 if (!Opts.OverrideRecordLayoutsFile.empty()) 580 Res.push_back("-foverride-record-layout=" + Opts.OverrideRecordLayoutsFile); 581 } 582 583 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 584 ToArgsList &Res) { 585 if (Opts.Sysroot != "/") { 586 Res.push_back("-isysroot"); 587 Res.push_back(Opts.Sysroot); 588 } 589 590 /// User specified include entries. 591 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 592 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 593 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 594 llvm::report_fatal_error("Invalid option set!"); 595 if (E.IsUserSupplied) { 596 switch (E.Group) { 597 case frontend::After: 598 Res.push_back("-idirafter"); 599 break; 600 601 case frontend::Quoted: 602 Res.push_back("-iquote"); 603 break; 604 605 case frontend::System: 606 Res.push_back("-isystem"); 607 break; 608 609 case frontend::IndexHeaderMap: 610 Res.push_back("-index-header-map"); 611 Res.push_back(E.IsFramework? "-F" : "-I"); 612 break; 613 614 case frontend::CSystem: 615 Res.push_back("-c-isystem"); 616 break; 617 618 case frontend::CXXSystem: 619 Res.push_back("-cxx-isystem"); 620 break; 621 622 case frontend::ObjCSystem: 623 Res.push_back("-objc-isystem"); 624 break; 625 626 case frontend::ObjCXXSystem: 627 Res.push_back("-objcxx-isystem"); 628 break; 629 630 case frontend::Angled: 631 Res.push_back(E.IsFramework ? "-F" : "-I"); 632 break; 633 } 634 } else { 635 if (E.IsInternal) { 636 assert(E.Group == frontend::System && "Unexpected header search group"); 637 if (E.ImplicitExternC) 638 Res.push_back("-internal-externc-isystem"); 639 else 640 Res.push_back("-internal-isystem"); 641 } else { 642 if (E.Group != frontend::Angled && E.Group != frontend::System) 643 llvm::report_fatal_error("Invalid option set!"); 644 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 645 "-iwithprefix"); 646 } 647 } 648 Res.push_back(E.Path); 649 } 650 651 /// User-specified system header prefixes. 652 for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) { 653 if (Opts.SystemHeaderPrefixes[i].IsSystemHeader) 654 Res.push_back("-isystem-prefix"); 655 else 656 Res.push_back("-ino-system-prefix"); 657 658 Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix); 659 } 660 661 if (!Opts.ResourceDir.empty()) 662 Res.push_back("-resource-dir", Opts.ResourceDir); 663 if (!Opts.ModuleCachePath.empty()) 664 Res.push_back("-fmodule-cache-path", Opts.ModuleCachePath); 665 if (!Opts.UseStandardSystemIncludes) 666 Res.push_back("-nostdsysteminc"); 667 if (!Opts.UseStandardCXXIncludes) 668 Res.push_back("-nostdinc++"); 669 if (Opts.UseLibcxx) 670 Res.push_back("-stdlib=libc++"); 671 if (Opts.Verbose) 672 Res.push_back("-v"); 673 } 674 675 static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) { 676 LangOptions DefaultLangOpts; 677 678 // FIXME: Need to set -std to get all the implicit options. 679 680 // FIXME: We want to only pass options relative to the defaults, which 681 // requires constructing a target. :( 682 // 683 // It would be better to push the all target specific choices into the driver, 684 // so that everything below that was more uniform. 685 686 if (Opts.Trigraphs) 687 Res.push_back("-trigraphs"); 688 // Implicit based on the input kind: 689 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 690 // Implicit based on the input language standard: 691 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 692 if (Opts.DollarIdents) 693 Res.push_back("-fdollars-in-identifiers"); 694 if (Opts.GNUMode && !Opts.GNUKeywords) 695 Res.push_back("-fno-gnu-keywords"); 696 if (!Opts.GNUMode && Opts.GNUKeywords) 697 Res.push_back("-fgnu-keywords"); 698 if (Opts.MicrosoftExt) 699 Res.push_back("-fms-extensions"); 700 if (Opts.MicrosoftMode) 701 Res.push_back("-fms-compatibility"); 702 if (Opts.MSCVersion != 0) 703 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion)); 704 if (Opts.Borland) 705 Res.push_back("-fborland-extensions"); 706 if (Opts.ObjCDefaultSynthProperties) 707 Res.push_back("-fobjc-default-synthesize-properties"); 708 // NoInline is implicit. 709 if (!Opts.CXXOperatorNames) 710 Res.push_back("-fno-operator-names"); 711 if (Opts.PascalStrings) 712 Res.push_back("-fpascal-strings"); 713 if (Opts.CatchUndefined) 714 Res.push_back("-fcatch-undefined-behavior"); 715 if (Opts.AddressSanitizer) 716 Res.push_back("-faddress-sanitizer"); 717 if (Opts.ThreadSanitizer) 718 Res.push_back("-fthread-sanitizer"); 719 if (Opts.WritableStrings) 720 Res.push_back("-fwritable-strings"); 721 if (Opts.ConstStrings) 722 Res.push_back("-fconst-strings"); 723 if (!Opts.LaxVectorConversions) 724 Res.push_back("-fno-lax-vector-conversions"); 725 if (Opts.AltiVec) 726 Res.push_back("-faltivec"); 727 if (Opts.Exceptions) 728 Res.push_back("-fexceptions"); 729 if (Opts.ObjCExceptions) 730 Res.push_back("-fobjc-exceptions"); 731 if (Opts.CXXExceptions) 732 Res.push_back("-fcxx-exceptions"); 733 if (Opts.SjLjExceptions) 734 Res.push_back("-fsjlj-exceptions"); 735 if (Opts.TraditionalCPP) 736 Res.push_back("-traditional-cpp"); 737 if (!Opts.RTTI) 738 Res.push_back("-fno-rtti"); 739 if (Opts.MSBitfields) 740 Res.push_back("-mms-bitfields"); 741 if (Opts.Freestanding) 742 Res.push_back("-ffreestanding"); 743 if (Opts.NoBuiltin) 744 Res.push_back("-fno-builtin"); 745 if (!Opts.AssumeSaneOperatorNew) 746 Res.push_back("-fno-assume-sane-operator-new"); 747 if (!Opts.ThreadsafeStatics) 748 Res.push_back("-fno-threadsafe-statics"); 749 if (Opts.POSIXThreads) 750 Res.push_back("-pthread"); 751 if (Opts.Blocks) 752 Res.push_back("-fblocks"); 753 if (Opts.BlocksRuntimeOptional) 754 Res.push_back("-fblocks-runtime-optional"); 755 if (Opts.Modules) 756 Res.push_back("-fmodules"); 757 if (Opts.EmitAllDecls) 758 Res.push_back("-femit-all-decls"); 759 if (Opts.MathErrno) 760 Res.push_back("-fmath-errno"); 761 switch (Opts.getSignedOverflowBehavior()) { 762 case LangOptions::SOB_Undefined: break; 763 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 764 case LangOptions::SOB_Trapping: 765 Res.push_back("-ftrapv"); 766 if (!Opts.OverflowHandler.empty()) 767 Res.push_back("-ftrapv-handler", Opts.OverflowHandler); 768 break; 769 } 770 switch (Opts.getFPContractMode()) { 771 case LangOptions::FPC_Off: Res.push_back("-ffp-contract=off"); break; 772 case LangOptions::FPC_On: Res.push_back("-ffp-contract=on"); break; 773 case LangOptions::FPC_Fast: Res.push_back("-ffp-contract=fast"); break; 774 } 775 if (Opts.HeinousExtensions) 776 Res.push_back("-fheinous-gnu-extensions"); 777 // Optimize is implicit. 778 // OptimizeSize is implicit. 779 if (Opts.FastMath) 780 Res.push_back("-ffast-math"); 781 if (Opts.Static) 782 Res.push_back("-static-define"); 783 if (Opts.DumpRecordLayoutsSimple) 784 Res.push_back("-fdump-record-layouts-simple"); 785 else if (Opts.DumpRecordLayouts) 786 Res.push_back("-fdump-record-layouts"); 787 if (Opts.DumpVTableLayouts) 788 Res.push_back("-fdump-vtable-layouts"); 789 if (Opts.NoBitFieldTypeAlign) 790 Res.push_back("-fno-bitfield-type-alignment"); 791 if (Opts.PICLevel) 792 Res.push_back("-pic-level", llvm::utostr(Opts.PICLevel)); 793 if (Opts.PIELevel) 794 Res.push_back("-pie-level", llvm::utostr(Opts.PIELevel)); 795 if (Opts.ObjCGCBitmapPrint) 796 Res.push_back("-print-ivar-layout"); 797 if (Opts.NoConstantCFStrings) 798 Res.push_back("-fno-constant-cfstrings"); 799 if (!Opts.AccessControl) 800 Res.push_back("-fno-access-control"); 801 if (!Opts.CharIsSigned) 802 Res.push_back("-fno-signed-char"); 803 if (Opts.CPlusPlus && !Opts.WChar) 804 Res.push_back("-fno-wchar"); 805 if (Opts.ShortWChar) 806 Res.push_back("-fshort-wchar"); 807 if (!Opts.ElideConstructors) 808 Res.push_back("-fno-elide-constructors"); 809 if (Opts.getGC() != LangOptions::NonGC) { 810 if (Opts.getGC() == LangOptions::HybridGC) { 811 Res.push_back("-fobjc-gc"); 812 } else { 813 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!"); 814 Res.push_back("-fobjc-gc-only"); 815 } 816 } 817 Res.push_back("-fobjc-runtime=" + Opts.ObjCRuntime.getAsString()); 818 if (Opts.ObjCAutoRefCount) 819 Res.push_back("-fobjc-arc"); 820 if (Opts.ObjCARCWeak) 821 Res.push_back("-fobjc-runtime-has-weak"); 822 if (!Opts.ObjCInferRelatedResultType) 823 Res.push_back("-fno-objc-infer-related-result-type"); 824 825 if (Opts.AppleKext) 826 Res.push_back("-fapple-kext"); 827 828 if (Opts.getVisibilityMode() != DefaultVisibility) { 829 Res.push_back("-fvisibility"); 830 if (Opts.getVisibilityMode() == HiddenVisibility) { 831 Res.push_back("hidden"); 832 } else { 833 assert(Opts.getVisibilityMode() == ProtectedVisibility && 834 "Invalid visibility!"); 835 Res.push_back("protected"); 836 } 837 } 838 if (Opts.InlineVisibilityHidden) 839 Res.push_back("-fvisibility-inlines-hidden"); 840 841 if (Opts.getStackProtector() != 0) 842 Res.push_back("-stack-protector", llvm::utostr(Opts.getStackProtector())); 843 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) 844 Res.push_back("-ftemplate-depth", llvm::utostr(Opts.InstantiationDepth)); 845 if (Opts.ConstexprCallDepth != DefaultLangOpts.ConstexprCallDepth) 846 Res.push_back("-fconstexpr-depth", llvm::utostr(Opts.ConstexprCallDepth)); 847 if (!Opts.ObjCConstantStringClass.empty()) 848 Res.push_back("-fconstant-string-class", Opts.ObjCConstantStringClass); 849 if (Opts.FakeAddressSpaceMap) 850 Res.push_back("-ffake-address-space-map"); 851 if (Opts.ParseUnknownAnytype) 852 Res.push_back("-funknown-anytype"); 853 if (Opts.DebuggerSupport) 854 Res.push_back("-fdebugger-support"); 855 if (Opts.DebuggerCastResultToId) 856 Res.push_back("-fdebugger-cast-result-to-id"); 857 if (Opts.DebuggerObjCLiteral) 858 Res.push_back("-fdebugger-objc-literal"); 859 if (Opts.DelayedTemplateParsing) 860 Res.push_back("-fdelayed-template-parsing"); 861 if (Opts.Deprecated) 862 Res.push_back("-fdeprecated-macro"); 863 if (Opts.ApplePragmaPack) 864 Res.push_back("-fapple-pragma-pack"); 865 if (!Opts.CurrentModule.empty()) 866 Res.push_back("-fmodule-name=" + Opts.CurrentModule); 867 } 868 869 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 870 ToArgsList &Res) { 871 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 872 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 873 Opts.Macros[i].first); 874 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 875 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 876 Res.push_back("-include", Opts.Includes[i]); 877 } 878 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) 879 Res.push_back("-imacros", Opts.MacroIncludes[i]); 880 if (!Opts.UsePredefines) 881 Res.push_back("-undef"); 882 if (Opts.DetailedRecord) 883 Res.push_back("-detailed-preprocessing-record"); 884 if (!Opts.ImplicitPCHInclude.empty()) 885 Res.push_back("-include-pch", Opts.ImplicitPCHInclude); 886 if (!Opts.ImplicitPTHInclude.empty()) 887 Res.push_back("-include-pth", Opts.ImplicitPTHInclude); 888 if (!Opts.TokenCache.empty()) { 889 if (Opts.ImplicitPTHInclude.empty()) 890 Res.push_back("-token-cache", Opts.TokenCache); 891 else 892 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 893 "Unsupported option combination!"); 894 } 895 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i) 896 Res.push_back("-chain-include", Opts.ChainedIncludes[i]); 897 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 898 Res.push_back("-remap-file", Opts.RemappedFiles[i].first + ";" + 899 Opts.RemappedFiles[i].second); 900 } 901 } 902 903 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 904 ToArgsList &Res) { 905 if (!Opts.ShowCPP && !Opts.ShowMacros) 906 llvm::report_fatal_error("Invalid option combination!"); 907 908 if (Opts.ShowCPP && Opts.ShowMacros) 909 Res.push_back("-dD"); 910 else if (!Opts.ShowCPP && Opts.ShowMacros) 911 Res.push_back("-dM"); 912 913 if (!Opts.ShowLineMarkers) 914 Res.push_back("-P"); 915 if (Opts.ShowComments) 916 Res.push_back("-C"); 917 if (Opts.ShowMacroComments) 918 Res.push_back("-CC"); 919 } 920 921 static void TargetOptsToArgs(const TargetOptions &Opts, 922 ToArgsList &Res) { 923 Res.push_back("-triple"); 924 Res.push_back(Opts.Triple); 925 if (!Opts.CPU.empty()) 926 Res.push_back("-target-cpu", Opts.CPU); 927 if (!Opts.ABI.empty()) 928 Res.push_back("-target-abi", Opts.ABI); 929 if (!Opts.LinkerVersion.empty()) 930 Res.push_back("-target-linker-version", Opts.LinkerVersion); 931 if (!Opts.CXXABI.empty()) 932 Res.push_back("-cxx-abi", Opts.CXXABI); 933 for (unsigned i = 0, e = Opts.FeaturesAsWritten.size(); i != e; ++i) 934 Res.push_back("-target-feature", Opts.FeaturesAsWritten[i]); 935 } 936 937 void CompilerInvocation::toArgs(std::vector<std::string> &Res) const { 938 ToArgsList List(Res); 939 AnalyzerOptsToArgs(*getAnalyzerOpts(), List); 940 CodeGenOptsToArgs(getCodeGenOpts(), List); 941 DependencyOutputOptsToArgs(getDependencyOutputOpts(), List); 942 DiagnosticOptsToArgs(getDiagnosticOpts(), List); 943 FileSystemOptsToArgs(getFileSystemOpts(), List); 944 FrontendOptsToArgs(getFrontendOpts(), List); 945 HeaderSearchOptsToArgs(getHeaderSearchOpts(), List); 946 LangOptsToArgs(*getLangOpts(), List); 947 PreprocessorOptsToArgs(getPreprocessorOpts(), List); 948 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), List); 949 TargetOptsToArgs(getTargetOpts(), List); 950 } 951 952 //===----------------------------------------------------------------------===// 953 // Deserialization (to args) 954 //===----------------------------------------------------------------------===// 955 956 using namespace clang::driver; 957 using namespace clang::driver::options; 958 959 // 960 961 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 962 DiagnosticsEngine &Diags) { 963 unsigned DefaultOpt = 0; 964 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 965 DefaultOpt = 2; 966 967 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 968 if (A->getOption().matches(options::OPT_O0)) 969 return 0; 970 971 assert (A->getOption().matches(options::OPT_O)); 972 973 llvm::StringRef S(A->getValue(Args)); 974 if (S == "s" || S == "z" || S.empty()) 975 return 2; 976 977 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 978 } 979 980 return DefaultOpt; 981 } 982 983 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 984 DiagnosticsEngine &Diags) { 985 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 986 if (A->getOption().matches(options::OPT_O)) { 987 switch (A->getValue(Args)[0]) { 988 default: 989 return 0; 990 case 's': 991 return 1; 992 case 'z': 993 return 2; 994 } 995 } 996 } 997 return 0; 998 } 999 1000 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 1001 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 1002 E = Args.filtered_end(); I != E; ++I) { 1003 Arg *A = *I; 1004 // If the argument is a pure flag, add its name (minus the "-W" at the beginning) 1005 // to the warning list. Else, add its value (for the OPT_W case). 1006 if (A->getOption().getKind() == Option::FlagClass) { 1007 Warnings.push_back(A->getOption().getName().substr(2)); 1008 } else { 1009 for (unsigned Idx = 0, End = A->getNumValues(); 1010 Idx < End; ++Idx) { 1011 StringRef V = A->getValue(Args, Idx); 1012 // "-Wl," and such are not warning options. 1013 // FIXME: Should be handled by putting these in separate flags. 1014 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 1015 continue; 1016 1017 Warnings.push_back(V); 1018 } 1019 } 1020 } 1021 } 1022 1023 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1024 DiagnosticsEngine &Diags) { 1025 using namespace options; 1026 bool Success = true; 1027 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 1028 StringRef Name = A->getValue(Args); 1029 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 1030 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 1031 .Case(CMDFLAG, NAME##Model) 1032 #include "clang/StaticAnalyzer/Core/Analyses.def" 1033 .Default(NumStores); 1034 if (Value == NumStores) { 1035 Diags.Report(diag::err_drv_invalid_value) 1036 << A->getAsString(Args) << Name; 1037 Success = false; 1038 } else { 1039 Opts.AnalysisStoreOpt = Value; 1040 } 1041 } 1042 1043 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1044 StringRef Name = A->getValue(Args); 1045 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1046 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1047 .Case(CMDFLAG, NAME##Model) 1048 #include "clang/StaticAnalyzer/Core/Analyses.def" 1049 .Default(NumConstraints); 1050 if (Value == NumConstraints) { 1051 Diags.Report(diag::err_drv_invalid_value) 1052 << A->getAsString(Args) << Name; 1053 Success = false; 1054 } else { 1055 Opts.AnalysisConstraintsOpt = Value; 1056 } 1057 } 1058 1059 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1060 StringRef Name = A->getValue(Args); 1061 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1062 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 1063 .Case(CMDFLAG, PD_##NAME) 1064 #include "clang/StaticAnalyzer/Core/Analyses.def" 1065 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1066 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1067 Diags.Report(diag::err_drv_invalid_value) 1068 << A->getAsString(Args) << Name; 1069 Success = false; 1070 } else { 1071 Opts.AnalysisDiagOpt = Value; 1072 } 1073 } 1074 1075 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1076 StringRef Name = A->getValue(Args); 1077 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1078 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1079 .Case(CMDFLAG, NAME) 1080 #include "clang/StaticAnalyzer/Core/Analyses.def" 1081 .Default(NumPurgeModes); 1082 if (Value == NumPurgeModes) { 1083 Diags.Report(diag::err_drv_invalid_value) 1084 << A->getAsString(Args) << Name; 1085 Success = false; 1086 } else { 1087 Opts.AnalysisPurgeOpt = Value; 1088 } 1089 } 1090 1091 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 1092 StringRef Name = A->getValue(Args); 1093 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 1094 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 1095 .Case(CMDFLAG, NAME) 1096 #include "clang/StaticAnalyzer/Core/Analyses.def" 1097 .Default(NumIPAModes); 1098 if (Value == NumIPAModes) { 1099 Diags.Report(diag::err_drv_invalid_value) 1100 << A->getAsString(Args) << Name; 1101 Success = false; 1102 } else { 1103 Opts.IPAMode = Value; 1104 } 1105 } 1106 1107 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1108 StringRef Name = A->getValue(Args); 1109 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1110 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1111 .Case(CMDFLAG, NAME) 1112 #include "clang/StaticAnalyzer/Core/Analyses.def" 1113 .Default(NumInliningModes); 1114 if (Value == NumInliningModes) { 1115 Diags.Report(diag::err_drv_invalid_value) 1116 << A->getAsString(Args) << Name; 1117 Success = false; 1118 } else { 1119 Opts.InliningMode = Value; 1120 } 1121 } 1122 1123 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 1124 Opts.visualizeExplodedGraphWithGraphViz = 1125 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 1126 Opts.visualizeExplodedGraphWithUbiGraph = 1127 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 1128 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 1129 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 1130 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 1131 Opts.AnalyzeNestedBlocks = 1132 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 1133 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 1134 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 1135 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 1136 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 1137 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 1138 Opts.maxBlockVisitOnPath = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 1139 Opts.eagerlyTrimExplodedGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph); 1140 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 1141 Opts.InlineMaxStackDepth = 1142 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 1143 Opts.InlineMaxStackDepth, Diags); 1144 Opts.InlineMaxFunctionSize = 1145 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 1146 Opts.InlineMaxFunctionSize, Diags); 1147 1148 Opts.CheckersControlList.clear(); 1149 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 1150 OPT_analyzer_disable_checker), 1151 ie = Args.filtered_end(); it != ie; ++it) { 1152 const Arg *A = *it; 1153 A->claim(); 1154 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 1155 // We can have a list of comma separated checker names, e.g: 1156 // '-analyzer-checker=cocoa,unix' 1157 StringRef checkerList = A->getValue(Args); 1158 SmallVector<StringRef, 4> checkers; 1159 checkerList.split(checkers, ","); 1160 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 1161 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 1162 } 1163 1164 // Go through the analyzer configuration options. 1165 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 1166 ie = Args.filtered_end(); it != ie; ++it) { 1167 const Arg *A = *it; 1168 A->claim(); 1169 // We can have a list of comma separated config names, e.g: 1170 // '-analyzer-config key1=val1,key2=val2' 1171 StringRef configList = A->getValue(Args); 1172 SmallVector<StringRef, 4> configVals; 1173 configList.split(configVals, ","); 1174 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 1175 StringRef key, val; 1176 llvm::tie(key, val) = configVals[i].split("="); 1177 if (val.empty()) { 1178 Diags.Report(SourceLocation(), 1179 diag::err_analyzer_config_no_value) << configVals[i]; 1180 Success = false; 1181 break; 1182 } 1183 if (val.find('=') != StringRef::npos) { 1184 Diags.Report(SourceLocation(), 1185 diag::err_analyzer_config_multiple_values) 1186 << configVals[i]; 1187 Success = false; 1188 break; 1189 } 1190 Opts.Config[key] = val; 1191 } 1192 } 1193 1194 return Success; 1195 } 1196 1197 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 1198 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 1199 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 1200 return true; 1201 } 1202 1203 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1204 DiagnosticsEngine &Diags) { 1205 using namespace options; 1206 bool Success = true; 1207 1208 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 1209 if (OptLevel > 3) { 1210 Diags.Report(diag::err_drv_invalid_value) 1211 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 1212 OptLevel = 3; 1213 Success = false; 1214 } 1215 Opts.OptimizationLevel = OptLevel; 1216 1217 // We must always run at least the always inlining pass. 1218 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 1219 : CodeGenOptions::OnlyAlwaysInlining; 1220 // -fno-inline-functions overrides OptimizationLevel > 1. 1221 Opts.NoInline = Args.hasArg(OPT_fno_inline); 1222 Opts.Inlining = Args.hasArg(OPT_fno_inline_functions) ? 1223 CodeGenOptions::OnlyAlwaysInlining : Opts.Inlining; 1224 1225 if (Args.hasArg(OPT_gline_tables_only)) { 1226 Opts.DebugInfo = CodeGenOptions::DebugLineTablesOnly; 1227 } else if (Args.hasArg(OPT_g_Flag)) { 1228 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 1229 Opts.DebugInfo = CodeGenOptions::LimitedDebugInfo; 1230 else 1231 Opts.DebugInfo = CodeGenOptions::FullDebugInfo; 1232 } 1233 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 1234 1235 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 1236 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 1237 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 1238 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 1239 OPT_fuse_register_sized_bitfield_access); 1240 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 1241 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 1242 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 1243 Opts.NoCommon = Args.hasArg(OPT_fno_common); 1244 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 1245 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 1246 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1247 Args.hasArg(OPT_ffreestanding)); 1248 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 1249 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 1250 1251 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 1252 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1253 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 1254 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1255 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1256 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 1257 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 1258 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 1259 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1260 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 1261 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 1262 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 1263 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 1264 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 1265 Args.hasArg(OPT_cl_finite_math_only)|| 1266 Args.hasArg(OPT_cl_fast_relaxed_math)); 1267 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 1268 Args.hasArg(OPT_cl_finite_math_only)|| 1269 Args.hasArg(OPT_cl_fast_relaxed_math)); 1270 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 1271 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 1272 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 1273 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 1274 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1275 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1276 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 1277 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1278 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 1279 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1280 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1281 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1282 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1283 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1284 Args.hasArg(OPT_cl_fast_relaxed_math); 1285 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1286 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 1287 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 1288 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 1289 Diags); 1290 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 1291 1292 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1293 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1294 1295 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 1296 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1297 1298 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1299 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1300 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1301 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1302 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1303 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 1304 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1305 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 1306 Opts.SSPBufferSize = 1307 Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags); 1308 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1309 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1310 StringRef Val = A->getValue(Args); 1311 Val.getAsInteger(10, Opts.StackAlignment); 1312 } 1313 1314 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1315 StringRef Name = A->getValue(Args); 1316 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1317 .Case("legacy", CodeGenOptions::Legacy) 1318 .Case("non-legacy", CodeGenOptions::NonLegacy) 1319 .Case("mixed", CodeGenOptions::Mixed) 1320 .Default(~0U); 1321 if (Method == ~0U) { 1322 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1323 Success = false; 1324 } else { 1325 Opts.ObjCDispatchMethod = Method; 1326 } 1327 } 1328 1329 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1330 StringRef Name = A->getValue(Args); 1331 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1332 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1333 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1334 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1335 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1336 .Default(~0U); 1337 if (Model == ~0U) { 1338 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1339 Success = false; 1340 } else { 1341 Opts.DefaultTLSModel = static_cast<CodeGenOptions::TLSModel>(Model); 1342 } 1343 } 1344 1345 return Success; 1346 } 1347 1348 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1349 ArgList &Args) { 1350 using namespace options; 1351 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1352 Opts.Targets = Args.getAllArgValues(OPT_MT); 1353 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1354 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1355 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1356 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1357 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1358 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1359 } 1360 1361 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1362 DiagnosticsEngine *Diags) { 1363 using namespace options; 1364 bool Success = true; 1365 1366 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1367 Opts.DiagnosticSerializationFile = 1368 Args.getLastArgValue(OPT_diagnostic_serialized_file); 1369 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1370 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1371 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1372 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1373 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1374 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 1375 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1376 OPT_fno_show_column, 1377 /*Default=*/true); 1378 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1379 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1380 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 1381 1382 // Default behavior is to not to show note include stacks. 1383 Opts.ShowNoteIncludeStack = false; 1384 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1385 OPT_fno_diagnostics_show_note_include_stack)) 1386 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1387 Opts.ShowNoteIncludeStack = true; 1388 1389 StringRef ShowOverloads = 1390 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1391 if (ShowOverloads == "best") 1392 Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best; 1393 else if (ShowOverloads == "all") 1394 Opts.ShowOverloads = DiagnosticsEngine::Ovl_All; 1395 else { 1396 Success = false; 1397 if (Diags) 1398 Diags->Report(diag::err_drv_invalid_value) 1399 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1400 << ShowOverloads; 1401 } 1402 1403 StringRef ShowCategory = 1404 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1405 if (ShowCategory == "none") 1406 Opts.ShowCategories = 0; 1407 else if (ShowCategory == "id") 1408 Opts.ShowCategories = 1; 1409 else if (ShowCategory == "name") 1410 Opts.ShowCategories = 2; 1411 else { 1412 Success = false; 1413 if (Diags) 1414 Diags->Report(diag::err_drv_invalid_value) 1415 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1416 << ShowCategory; 1417 } 1418 1419 StringRef Format = 1420 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1421 if (Format == "clang") 1422 Opts.Format = DiagnosticOptions::Clang; 1423 else if (Format == "msvc") 1424 Opts.Format = DiagnosticOptions::Msvc; 1425 else if (Format == "vi") 1426 Opts.Format = DiagnosticOptions::Vi; 1427 else { 1428 Success = false; 1429 if (Diags) 1430 Diags->Report(diag::err_drv_invalid_value) 1431 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1432 << Format; 1433 } 1434 1435 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1436 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1437 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1438 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1439 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1440 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 1441 Opts.MacroBacktraceLimit 1442 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 1443 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1444 Opts.TemplateBacktraceLimit 1445 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 1446 DiagnosticOptions::DefaultTemplateBacktraceLimit, 1447 Diags); 1448 Opts.ConstexprBacktraceLimit 1449 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 1450 DiagnosticOptions::DefaultConstexprBacktraceLimit, 1451 Diags); 1452 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 1453 DiagnosticOptions::DefaultTabStop, Diags); 1454 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1455 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1456 if (Diags) 1457 Diags->Report(diag::warn_ignoring_ftabstop_value) 1458 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1459 } 1460 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 1461 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 1462 addWarningArgs(Args, Opts.Warnings); 1463 1464 return Success; 1465 } 1466 1467 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1468 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1469 } 1470 1471 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1472 DiagnosticsEngine &Diags) { 1473 using namespace options; 1474 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1475 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1476 switch (A->getOption().getID()) { 1477 default: 1478 llvm_unreachable("Invalid option in group!"); 1479 case OPT_ast_list: 1480 Opts.ProgramAction = frontend::ASTDeclList; break; 1481 case OPT_ast_dump: 1482 Opts.ProgramAction = frontend::ASTDump; break; 1483 case OPT_ast_dump_xml: 1484 Opts.ProgramAction = frontend::ASTDumpXML; break; 1485 case OPT_ast_print: 1486 Opts.ProgramAction = frontend::ASTPrint; break; 1487 case OPT_ast_view: 1488 Opts.ProgramAction = frontend::ASTView; break; 1489 case OPT_dump_raw_tokens: 1490 Opts.ProgramAction = frontend::DumpRawTokens; break; 1491 case OPT_dump_tokens: 1492 Opts.ProgramAction = frontend::DumpTokens; break; 1493 case OPT_S: 1494 Opts.ProgramAction = frontend::EmitAssembly; break; 1495 case OPT_emit_llvm_bc: 1496 Opts.ProgramAction = frontend::EmitBC; break; 1497 case OPT_emit_html: 1498 Opts.ProgramAction = frontend::EmitHTML; break; 1499 case OPT_emit_llvm: 1500 Opts.ProgramAction = frontend::EmitLLVM; break; 1501 case OPT_emit_llvm_only: 1502 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1503 case OPT_emit_codegen_only: 1504 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1505 case OPT_emit_obj: 1506 Opts.ProgramAction = frontend::EmitObj; break; 1507 case OPT_fixit_EQ: 1508 Opts.FixItSuffix = A->getValue(Args); 1509 // fall-through! 1510 case OPT_fixit: 1511 Opts.ProgramAction = frontend::FixIt; break; 1512 case OPT_emit_module: 1513 Opts.ProgramAction = frontend::GenerateModule; break; 1514 case OPT_emit_pch: 1515 Opts.ProgramAction = frontend::GeneratePCH; break; 1516 case OPT_emit_pth: 1517 Opts.ProgramAction = frontend::GeneratePTH; break; 1518 case OPT_init_only: 1519 Opts.ProgramAction = frontend::InitOnly; break; 1520 case OPT_fsyntax_only: 1521 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1522 case OPT_print_decl_contexts: 1523 Opts.ProgramAction = frontend::PrintDeclContext; break; 1524 case OPT_print_preamble: 1525 Opts.ProgramAction = frontend::PrintPreamble; break; 1526 case OPT_E: 1527 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1528 case OPT_rewrite_macros: 1529 Opts.ProgramAction = frontend::RewriteMacros; break; 1530 case OPT_rewrite_objc: 1531 Opts.ProgramAction = frontend::RewriteObjC; break; 1532 case OPT_rewrite_test: 1533 Opts.ProgramAction = frontend::RewriteTest; break; 1534 case OPT_analyze: 1535 Opts.ProgramAction = frontend::RunAnalysis; break; 1536 case OPT_migrate: 1537 Opts.ProgramAction = frontend::MigrateSource; break; 1538 case OPT_Eonly: 1539 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1540 } 1541 } 1542 1543 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1544 Opts.Plugins.push_back(A->getValue(Args,0)); 1545 Opts.ProgramAction = frontend::PluginAction; 1546 Opts.ActionName = A->getValue(Args); 1547 1548 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1549 end = Args.filtered_end(); it != end; ++it) { 1550 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1551 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1552 } 1553 } 1554 1555 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1556 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 1557 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 1558 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1559 end = Args.filtered_end(); it != end; ++it) { 1560 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 1561 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 1562 } 1563 } 1564 1565 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1566 Opts.CodeCompletionAt = 1567 ParsedSourceLocation::FromString(A->getValue(Args)); 1568 if (Opts.CodeCompletionAt.FileName.empty()) 1569 Diags.Report(diag::err_drv_invalid_value) 1570 << A->getAsString(Args) << A->getValue(Args); 1571 } 1572 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1573 1574 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1575 Opts.Plugins = Args.getAllArgValues(OPT_load); 1576 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1577 Opts.ShowHelp = Args.hasArg(OPT_help); 1578 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1579 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1580 Opts.ShowVersion = Args.hasArg(OPT_version); 1581 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1582 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1583 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1584 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1585 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1586 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1587 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1588 1589 Opts.CodeCompleteOpts.IncludeMacros 1590 = Args.hasArg(OPT_code_completion_macros); 1591 Opts.CodeCompleteOpts.IncludeCodePatterns 1592 = Args.hasArg(OPT_code_completion_patterns); 1593 Opts.CodeCompleteOpts.IncludeGlobals 1594 = !Args.hasArg(OPT_no_code_completion_globals); 1595 Opts.CodeCompleteOpts.IncludeBriefComments 1596 = Args.hasArg(OPT_code_completion_brief_comments); 1597 1598 Opts.OverrideRecordLayoutsFile 1599 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1600 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1601 OPT_arcmt_modify, 1602 OPT_arcmt_migrate)) { 1603 switch (A->getOption().getID()) { 1604 default: 1605 llvm_unreachable("missed a case"); 1606 case OPT_arcmt_check: 1607 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1608 break; 1609 case OPT_arcmt_modify: 1610 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1611 break; 1612 case OPT_arcmt_migrate: 1613 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1614 break; 1615 } 1616 } 1617 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1618 Opts.ARCMTMigrateReportOut 1619 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1620 Opts.ARCMTMigrateEmitARCErrors 1621 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1622 1623 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1624 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1625 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1626 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1627 1628 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1629 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1630 Diags.Report(diag::err_drv_argument_not_allowed_with) 1631 << "ARC migration" << "ObjC migration"; 1632 } 1633 1634 InputKind DashX = IK_None; 1635 if (const Arg *A = Args.getLastArg(OPT_x)) { 1636 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1637 .Case("c", IK_C) 1638 .Case("cl", IK_OpenCL) 1639 .Case("cuda", IK_CUDA) 1640 .Case("c++", IK_CXX) 1641 .Case("objective-c", IK_ObjC) 1642 .Case("objective-c++", IK_ObjCXX) 1643 .Case("cpp-output", IK_PreprocessedC) 1644 .Case("assembler-with-cpp", IK_Asm) 1645 .Case("c++-cpp-output", IK_PreprocessedCXX) 1646 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1647 .Case("objc-cpp-output", IK_PreprocessedObjC) 1648 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1649 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1650 .Case("c-header", IK_C) 1651 .Case("cl-header", IK_OpenCL) 1652 .Case("objective-c-header", IK_ObjC) 1653 .Case("c++-header", IK_CXX) 1654 .Case("objective-c++-header", IK_ObjCXX) 1655 .Case("ast", IK_AST) 1656 .Case("ir", IK_LLVM_IR) 1657 .Default(IK_None); 1658 if (DashX == IK_None) 1659 Diags.Report(diag::err_drv_invalid_value) 1660 << A->getAsString(Args) << A->getValue(Args); 1661 } 1662 1663 // '-' is the default input if none is given. 1664 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1665 Opts.Inputs.clear(); 1666 if (Inputs.empty()) 1667 Inputs.push_back("-"); 1668 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1669 InputKind IK = DashX; 1670 if (IK == IK_None) { 1671 IK = FrontendOptions::getInputKindForExtension( 1672 StringRef(Inputs[i]).rsplit('.').second); 1673 // FIXME: Remove this hack. 1674 if (i == 0) 1675 DashX = IK; 1676 } 1677 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1678 } 1679 1680 return DashX; 1681 } 1682 1683 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1684 void *MainAddr) { 1685 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1686 1687 if (!P.isEmpty()) { 1688 P.eraseComponent(); // Remove /clang from foo/bin/clang 1689 P.eraseComponent(); // Remove /bin from foo/bin 1690 1691 // Get foo/lib/clang/<version>/include 1692 P.appendComponent("lib"); 1693 P.appendComponent("clang"); 1694 P.appendComponent(CLANG_VERSION_STRING); 1695 } 1696 1697 return P.str(); 1698 } 1699 1700 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1701 using namespace options; 1702 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1703 Opts.Verbose = Args.hasArg(OPT_v); 1704 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1705 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1706 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1707 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1708 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 1709 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1710 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 1711 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1712 1713 // Add -I..., -F..., and -index-header-map options in order. 1714 bool IsIndexHeaderMap = false; 1715 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1716 OPT_index_header_map), 1717 ie = Args.filtered_end(); it != ie; ++it) { 1718 if ((*it)->getOption().matches(OPT_index_header_map)) { 1719 // -index-header-map applies to the next -I or -F. 1720 IsIndexHeaderMap = true; 1721 continue; 1722 } 1723 1724 frontend::IncludeDirGroup Group 1725 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1726 1727 Opts.AddPath((*it)->getValue(Args), Group, true, 1728 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 1729 IsIndexHeaderMap = false; 1730 } 1731 1732 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1733 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1734 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1735 OPT_iwithprefixbefore), 1736 ie = Args.filtered_end(); it != ie; ++it) { 1737 const Arg *A = *it; 1738 if (A->getOption().matches(OPT_iprefix)) 1739 Prefix = A->getValue(Args); 1740 else if (A->getOption().matches(OPT_iwithprefix)) 1741 Opts.AddPath(Prefix.str() + A->getValue(Args), 1742 frontend::System, false, false, false); 1743 else 1744 Opts.AddPath(Prefix.str() + A->getValue(Args), 1745 frontend::Angled, false, false, false); 1746 } 1747 1748 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1749 ie = Args.filtered_end(); it != ie; ++it) 1750 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 1751 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1752 ie = Args.filtered_end(); it != ie; ++it) 1753 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 1754 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1755 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1756 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 1757 !(*it)->getOption().matches(OPT_iwithsysroot)); 1758 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1759 ie = Args.filtered_end(); it != ie; ++it) 1760 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true, 1761 true); 1762 1763 // Add the paths for the various language specific isystem flags. 1764 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1765 ie = Args.filtered_end(); it != ie; ++it) 1766 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 1767 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1768 ie = Args.filtered_end(); it != ie; ++it) 1769 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 1770 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1771 ie = Args.filtered_end(); it != ie; ++it) 1772 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 1773 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1774 ie = Args.filtered_end(); it != ie; ++it) 1775 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 1776 true); 1777 1778 // Add the internal paths from a driver that detects standard include paths. 1779 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1780 OPT_internal_externc_isystem), 1781 E = Args.filtered_end(); 1782 I != E; ++I) 1783 Opts.AddPath((*I)->getValue(Args), frontend::System, 1784 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 1785 (*I)->getOption().matches(OPT_internal_externc_isystem)); 1786 1787 // Add the path prefixes which are implicitly treated as being system headers. 1788 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 1789 OPT_ino_system_prefix), 1790 E = Args.filtered_end(); 1791 I != E; ++I) 1792 Opts.AddSystemHeaderPrefix((*I)->getValue(Args), 1793 (*I)->getOption().matches(OPT_isystem_prefix)); 1794 } 1795 1796 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1797 LangStandard::Kind LangStd) { 1798 // Set some properties which depend solely on the input kind; it would be nice 1799 // to move these to the language standard, and have the driver resolve the 1800 // input kind + language standard. 1801 if (IK == IK_Asm) { 1802 Opts.AsmPreprocessor = 1; 1803 } else if (IK == IK_ObjC || 1804 IK == IK_ObjCXX || 1805 IK == IK_PreprocessedObjC || 1806 IK == IK_PreprocessedObjCXX) { 1807 Opts.ObjC1 = Opts.ObjC2 = 1; 1808 } 1809 1810 if (LangStd == LangStandard::lang_unspecified) { 1811 // Based on the base language, pick one. 1812 switch (IK) { 1813 case IK_None: 1814 case IK_AST: 1815 case IK_LLVM_IR: 1816 llvm_unreachable("Invalid input kind!"); 1817 case IK_OpenCL: 1818 LangStd = LangStandard::lang_opencl; 1819 break; 1820 case IK_CUDA: 1821 LangStd = LangStandard::lang_cuda; 1822 break; 1823 case IK_Asm: 1824 case IK_C: 1825 case IK_PreprocessedC: 1826 case IK_ObjC: 1827 case IK_PreprocessedObjC: 1828 LangStd = LangStandard::lang_gnu99; 1829 break; 1830 case IK_CXX: 1831 case IK_PreprocessedCXX: 1832 case IK_ObjCXX: 1833 case IK_PreprocessedObjCXX: 1834 LangStd = LangStandard::lang_gnucxx98; 1835 break; 1836 } 1837 } 1838 1839 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1840 Opts.BCPLComment = Std.hasBCPLComments(); 1841 Opts.C99 = Std.isC99(); 1842 Opts.C11 = Std.isC11(); 1843 Opts.CPlusPlus = Std.isCPlusPlus(); 1844 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1845 Opts.CPlusPlus1y = Std.isCPlusPlus1y(); 1846 Opts.Digraphs = Std.hasDigraphs(); 1847 Opts.GNUMode = Std.isGNUMode(); 1848 Opts.GNUInline = !Std.isC99(); 1849 Opts.HexFloats = Std.hasHexFloats(); 1850 Opts.ImplicitInt = Std.hasImplicitInt(); 1851 1852 // Set OpenCL Version. 1853 if (LangStd == LangStandard::lang_opencl) { 1854 Opts.OpenCL = 1; 1855 Opts.OpenCLVersion = 100; 1856 } 1857 else if (LangStd == LangStandard::lang_opencl11) { 1858 Opts.OpenCL = 1; 1859 Opts.OpenCLVersion = 110; 1860 } 1861 else if (LangStd == LangStandard::lang_opencl12) { 1862 Opts.OpenCL = 1; 1863 Opts.OpenCLVersion = 120; 1864 } 1865 1866 // OpenCL has some additional defaults. 1867 if (Opts.OpenCL) { 1868 Opts.AltiVec = 0; 1869 Opts.CXXOperatorNames = 1; 1870 Opts.LaxVectorConversions = 0; 1871 Opts.DefaultFPContract = 1; 1872 } 1873 1874 if (LangStd == LangStandard::lang_cuda) 1875 Opts.CUDA = 1; 1876 1877 // OpenCL and C++ both have bool, true, false keywords. 1878 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1879 1880 // C++ has wchar_t keyword. 1881 Opts.WChar = Opts.CPlusPlus; 1882 1883 Opts.GNUKeywords = Opts.GNUMode; 1884 Opts.CXXOperatorNames = Opts.CPlusPlus; 1885 1886 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1887 // is specified, or -std is set to a conforming mode. 1888 Opts.Trigraphs = !Opts.GNUMode; 1889 1890 Opts.DollarIdents = !Opts.AsmPreprocessor; 1891 } 1892 1893 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1894 DiagnosticsEngine &Diags) { 1895 // FIXME: Cleanup per-file based stuff. 1896 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1897 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1898 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1899 #define LANGSTANDARD(id, name, desc, features) \ 1900 .Case(name, LangStandard::lang_##id) 1901 #include "clang/Frontend/LangStandards.def" 1902 .Default(LangStandard::lang_unspecified); 1903 if (LangStd == LangStandard::lang_unspecified) 1904 Diags.Report(diag::err_drv_invalid_value) 1905 << A->getAsString(Args) << A->getValue(Args); 1906 else { 1907 // Valid standard, check to make sure language and standard are compatable. 1908 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1909 switch (IK) { 1910 case IK_C: 1911 case IK_ObjC: 1912 case IK_PreprocessedC: 1913 case IK_PreprocessedObjC: 1914 if (!(Std.isC89() || Std.isC99())) 1915 Diags.Report(diag::err_drv_argument_not_allowed_with) 1916 << A->getAsString(Args) << "C/ObjC"; 1917 break; 1918 case IK_CXX: 1919 case IK_ObjCXX: 1920 case IK_PreprocessedCXX: 1921 case IK_PreprocessedObjCXX: 1922 if (!Std.isCPlusPlus()) 1923 Diags.Report(diag::err_drv_argument_not_allowed_with) 1924 << A->getAsString(Args) << "C++/ObjC++"; 1925 break; 1926 case IK_OpenCL: 1927 if (!Std.isC99()) 1928 Diags.Report(diag::err_drv_argument_not_allowed_with) 1929 << A->getAsString(Args) << "OpenCL"; 1930 break; 1931 case IK_CUDA: 1932 if (!Std.isCPlusPlus()) 1933 Diags.Report(diag::err_drv_argument_not_allowed_with) 1934 << A->getAsString(Args) << "CUDA"; 1935 break; 1936 default: 1937 break; 1938 } 1939 } 1940 } 1941 1942 // -cl-std only applies for OpenCL language standards. 1943 // Override the -std option in this case. 1944 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1945 LangStandard::Kind OpenCLLangStd 1946 = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1947 .Case("CL", LangStandard::lang_opencl) 1948 .Case("CL1.1", LangStandard::lang_opencl11) 1949 .Case("CL1.2", LangStandard::lang_opencl12) 1950 .Default(LangStandard::lang_unspecified); 1951 1952 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1953 Diags.Report(diag::err_drv_invalid_value) 1954 << A->getAsString(Args) << A->getValue(Args); 1955 } 1956 else 1957 LangStd = OpenCLLangStd; 1958 } 1959 1960 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1961 1962 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1963 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1964 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1965 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1966 // name, as it doesn't seem a useful distinction. 1967 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1968 Opts.GNUKeywords); 1969 1970 if (Args.hasArg(OPT_fno_operator_names)) 1971 Opts.CXXOperatorNames = 0; 1972 1973 if (Opts.ObjC1) { 1974 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1975 StringRef value = arg->getValue(Args); 1976 if (Opts.ObjCRuntime.tryParse(value)) 1977 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1978 } 1979 1980 if (Args.hasArg(OPT_fobjc_gc_only)) 1981 Opts.setGC(LangOptions::GCOnly); 1982 else if (Args.hasArg(OPT_fobjc_gc)) 1983 Opts.setGC(LangOptions::HybridGC); 1984 else if (Args.hasArg(OPT_fobjc_arc)) { 1985 Opts.ObjCAutoRefCount = 1; 1986 if (!Opts.ObjCRuntime.allowsARC()) 1987 Diags.Report(diag::err_arc_unsupported_on_runtime); 1988 1989 // Only set ObjCARCWeak if ARC is enabled. 1990 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1991 Opts.ObjCARCWeak = 1; 1992 else 1993 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1994 } 1995 1996 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1997 Opts.ObjCInferRelatedResultType = 0; 1998 } 1999 2000 if (Args.hasArg(OPT_fgnu89_inline)) 2001 Opts.GNUInline = 1; 2002 2003 if (Args.hasArg(OPT_fapple_kext)) { 2004 if (!Opts.CPlusPlus) 2005 Diags.Report(diag::warn_c_kext); 2006 else 2007 Opts.AppleKext = 1; 2008 } 2009 2010 if (Args.hasArg(OPT_print_ivar_layout)) 2011 Opts.ObjCGCBitmapPrint = 1; 2012 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2013 Opts.NoConstantCFStrings = 1; 2014 2015 if (Args.hasArg(OPT_faltivec)) 2016 Opts.AltiVec = 1; 2017 2018 if (Args.hasArg(OPT_pthread)) 2019 Opts.POSIXThreads = 1; 2020 2021 if (Args.hasArg(OPT_fdelayed_template_parsing)) 2022 Opts.DelayedTemplateParsing = 1; 2023 2024 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 2025 if (Vis == "default") 2026 Opts.setVisibilityMode(DefaultVisibility); 2027 else if (Vis == "hidden") 2028 Opts.setVisibilityMode(HiddenVisibility); 2029 else if (Vis == "protected") 2030 // FIXME: diagnose if target does not support protected visibility 2031 Opts.setVisibilityMode(ProtectedVisibility); 2032 else 2033 Diags.Report(diag::err_drv_invalid_value) 2034 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 2035 2036 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 2037 StringRef Val = A->getValue(Args); 2038 if (Val == "fast") 2039 Opts.setFPContractMode(LangOptions::FPC_Fast); 2040 else if (Val == "on") 2041 Opts.setFPContractMode(LangOptions::FPC_On); 2042 else if (Val == "off") 2043 Opts.setFPContractMode(LangOptions::FPC_Off); 2044 else 2045 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2046 } 2047 2048 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2049 Opts.InlineVisibilityHidden = 1; 2050 2051 if (Args.hasArg(OPT_ftrapv)) { 2052 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2053 // Set the handler, if one is specified. 2054 Opts.OverflowHandler = 2055 Args.getLastArgValue(OPT_ftrapv_handler); 2056 } 2057 else if (Args.hasArg(OPT_fwrapv)) 2058 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2059 2060 if (Args.hasArg(OPT_trigraphs)) 2061 Opts.Trigraphs = 1; 2062 2063 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2064 OPT_fno_dollars_in_identifiers, 2065 Opts.DollarIdents); 2066 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2067 Opts.MicrosoftExt 2068 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 2069 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 2070 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 2071 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2072 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2073 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2074 Opts.ConstStrings); 2075 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 2076 Opts.LaxVectorConversions = 0; 2077 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2078 Opts.ThreadsafeStatics = 0; 2079 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2080 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2081 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2082 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 2083 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2084 2085 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 2086 Opts.Blocks = Args.hasArg(OPT_fblocks); 2087 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2088 Opts.Modules = Args.hasArg(OPT_fmodules); 2089 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 2090 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2091 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 2092 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2093 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2094 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2095 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 2096 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2097 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2098 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2099 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 2100 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512, 2101 Diags); 2102 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 2103 Diags); 2104 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2105 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 2106 0, Diags); 2107 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2108 Opts.ObjCConstantStringClass = 2109 Args.getLastArgValue(OPT_fconstant_string_class); 2110 Opts.ObjCDefaultSynthProperties = 2111 Args.hasArg(OPT_fobjc_default_synthesize_properties); 2112 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 2113 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2114 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 2115 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 2116 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 2117 Opts.Static = Args.hasArg(OPT_static_define); 2118 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2119 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2120 || Args.hasArg(OPT_fdump_record_layouts); 2121 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2122 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2123 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2124 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2125 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2126 Opts.MRTD = Args.hasArg(OPT_mrtd); 2127 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2128 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2129 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2130 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2131 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2132 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2133 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer); 2134 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer); 2135 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2136 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 2137 2138 // Record whether the __DEPRECATED define was requested. 2139 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2140 OPT_fno_deprecated_macro, 2141 Opts.Deprecated); 2142 2143 // FIXME: Eliminate this dependency. 2144 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2145 OptSize = getOptimizationLevelSize(Args, IK, Diags); 2146 Opts.Optimize = Opt != 0; 2147 Opts.OptimizeSize = OptSize != 0; 2148 2149 // This is the __NO_INLINE__ define, which just depends on things like the 2150 // optimization level and -fno-inline, not actually whether the backend has 2151 // inlining enabled. 2152 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2153 2154 Opts.FastMath = Args.hasArg(OPT_ffast_math); 2155 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 2156 2157 Opts.EmitMicrosoftInlineAsm = Args.hasArg(OPT_fenable_experimental_ms_inline_asm); 2158 2159 Opts.RetainCommentsFromSystemHeaders = 2160 Args.hasArg(OPT_fretain_comments_from_system_headers); 2161 2162 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 2163 switch (SSP) { 2164 default: 2165 Diags.Report(diag::err_drv_invalid_value) 2166 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2167 break; 2168 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2169 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2170 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 2171 } 2172 } 2173 2174 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2175 FileManager &FileMgr, 2176 DiagnosticsEngine &Diags) { 2177 using namespace options; 2178 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2179 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2180 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2181 Opts.TokenCache = A->getValue(Args); 2182 else 2183 Opts.TokenCache = Opts.ImplicitPTHInclude; 2184 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2185 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2186 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2187 2188 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2189 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 2190 ie = Args.filtered_end(); it != ie; ++it) { 2191 const Arg *A = *it; 2192 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 2193 } 2194 2195 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2196 StringRef Value(A->getValue(Args)); 2197 size_t Comma = Value.find(','); 2198 unsigned Bytes = 0; 2199 unsigned EndOfLine = 0; 2200 2201 if (Comma == StringRef::npos || 2202 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2203 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2204 Diags.Report(diag::err_drv_preamble_format); 2205 else { 2206 Opts.PrecompiledPreambleBytes.first = Bytes; 2207 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2208 } 2209 } 2210 2211 // Add macros from the command line. 2212 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 2213 ie = Args.filtered_end(); it != ie; ++it) { 2214 if ((*it)->getOption().matches(OPT_D)) 2215 Opts.addMacroDef((*it)->getValue(Args)); 2216 else 2217 Opts.addMacroUndef((*it)->getValue(Args)); 2218 } 2219 2220 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2221 2222 // Add the ordered list of -includes. 2223 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 2224 OPT_include_pth), 2225 ie = Args.filtered_end(); it != ie; ++it) { 2226 const Arg *A = *it; 2227 // PCH is handled specially, we need to extra the original include path. 2228 if (A->getOption().matches(OPT_include_pch)) { 2229 std::string OriginalFile = 2230 ASTReader::getOriginalSourceFile(A->getValue(Args), FileMgr, Diags); 2231 if (OriginalFile.empty()) 2232 continue; 2233 2234 Opts.Includes.push_back(OriginalFile); 2235 } else 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().isCC1Option()) { 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