1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "clang/Basic/Diagnostic.h" 12 #include "clang/Basic/Version.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Driver/Arg.h" 15 #include "clang/Driver/ArgList.h" 16 #include "clang/Driver/Options.h" 17 #include "clang/Driver/DriverDiagnostic.h" 18 #include "clang/Driver/OptTable.h" 19 #include "clang/Driver/Option.h" 20 #include "clang/Frontend/CompilerInvocation.h" 21 #include "clang/Frontend/LangStandard.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "llvm/ADT/OwningPtr.h" 24 #include "llvm/ADT/SmallVector.h" 25 #include "llvm/ADT/StringExtras.h" 26 #include "llvm/ADT/StringSwitch.h" 27 #include "llvm/ADT/Triple.h" 28 #include "llvm/Support/ErrorHandling.h" 29 #include "llvm/Support/Host.h" 30 #include "llvm/Support/Path.h" 31 using namespace clang; 32 33 //===----------------------------------------------------------------------===// 34 // Initialization. 35 //===----------------------------------------------------------------------===// 36 37 CompilerInvocationBase::CompilerInvocationBase() 38 : LangOpts(new LangOptions()) {} 39 40 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 41 : RefCountedBase<CompilerInvocation>(), 42 LangOpts(new LangOptions(*X.getLangOpts())) {} 43 44 //===----------------------------------------------------------------------===// 45 // Utility functions. 46 //===----------------------------------------------------------------------===// 47 48 static const char *getAnalysisStoreName(AnalysisStores Kind) { 49 switch (Kind) { 50 default: 51 llvm_unreachable("Unknown analysis store!"); 52 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 53 case NAME##Model: return CMDFLAG; 54 #include "clang/Frontend/Analyses.def" 55 } 56 } 57 58 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) { 59 switch (Kind) { 60 default: 61 llvm_unreachable("Unknown analysis constraints!"); 62 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 63 case NAME##Model: return CMDFLAG; 64 #include "clang/Frontend/Analyses.def" 65 } 66 } 67 68 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) { 69 switch (Kind) { 70 default: 71 llvm_unreachable("Unknown analysis client!"); 72 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \ 73 case PD_##NAME: return CMDFLAG; 74 #include "clang/Frontend/Analyses.def" 75 } 76 } 77 78 static const char *getAnalysisPurgeModeName(AnalysisPurgeMode Kind) { 79 switch (Kind) { 80 default: 81 llvm_unreachable("Unknown analysis purge mode!"); 82 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 83 case NAME: return CMDFLAG; 84 #include "clang/Frontend/Analyses.def" 85 } 86 } 87 88 static const char *getAnalysisIPAModeName(AnalysisIPAMode Kind) { 89 switch (Kind) { 90 default: 91 llvm_unreachable("Unknown analysis ipa mode!"); 92 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 93 case NAME: return CMDFLAG; 94 #include "clang/Frontend/Analyses.def" 95 } 96 } 97 98 static const char * 99 getAnalysisInliningModeName(AnalysisInliningMode Kind) { 100 switch (Kind) { 101 default: 102 llvm_unreachable("Unknown analysis inlining mode!"); 103 #define ANALYSIS_INLINE_SELECTION(NAME, CMDFLAG, DESC) \ 104 case NAME: return CMDFLAG; 105 #include "clang/Frontend/Analyses.def" 106 } 107 } 108 109 //===----------------------------------------------------------------------===// 110 // Serialization (to args) 111 //===----------------------------------------------------------------------===// 112 113 namespace { 114 /// ToArgsList - Helper class to create a list of std::strings. 115 class ToArgsList { 116 std::vector<std::string> &Res; 117 public: 118 explicit ToArgsList(std::vector<std::string> &Res) : Res(Res) {} 119 120 void push_back(StringRef Str) { 121 // Avoid creating a temporary string. 122 Res.push_back(std::string()); 123 Res.back().assign(Str.data(), Str.size()); 124 } 125 126 void push_back(StringRef Str1, StringRef Str2) { 127 push_back(Str1); 128 push_back(Str2); 129 } 130 }; 131 } 132 133 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, ToArgsList &Res) { 134 if (Opts.ShowCheckerHelp) 135 Res.push_back("-analyzer-checker-help"); 136 if (Opts.AnalysisStoreOpt != RegionStoreModel) 137 Res.push_back("-analyzer-store", 138 getAnalysisStoreName(Opts.AnalysisStoreOpt)); 139 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) 140 Res.push_back("-analyzer-constraints", 141 getAnalysisConstraintName(Opts.AnalysisConstraintsOpt)); 142 if (Opts.AnalysisDiagOpt != PD_HTML) 143 Res.push_back("-analyzer-output", 144 getAnalysisDiagClientName(Opts.AnalysisDiagOpt)); 145 if (Opts.AnalysisPurgeOpt != PurgeStmt) 146 Res.push_back("-analyzer-purge", 147 getAnalysisPurgeModeName(Opts.AnalysisPurgeOpt)); 148 if (!Opts.AnalyzeSpecificFunction.empty()) 149 Res.push_back("-analyze-function", Opts.AnalyzeSpecificFunction); 150 if (Opts.IPAMode != Inlining) 151 Res.push_back("-analyzer-ipa", getAnalysisIPAModeName(Opts.IPAMode)); 152 if (Opts.InliningMode != NoRedundancy) 153 Res.push_back("-analyzer-inlining-mode", 154 getAnalysisInliningModeName(Opts.InliningMode)); 155 156 if (Opts.AnalyzeAll) 157 Res.push_back("-analyzer-opt-analyze-headers"); 158 if (Opts.AnalyzerDisplayProgress) 159 Res.push_back("-analyzer-display-progress"); 160 if (Opts.AnalyzeNestedBlocks) 161 Res.push_back("-analyzer-opt-analyze-nested-blocks"); 162 if (Opts.EagerlyAssume) 163 Res.push_back("-analyzer-eagerly-assume"); 164 if (Opts.TrimGraph) 165 Res.push_back("-trim-egraph"); 166 if (Opts.VisualizeEGDot) 167 Res.push_back("-analyzer-viz-egraph-graphviz"); 168 if (Opts.VisualizeEGUbi) 169 Res.push_back("-analyzer-viz-egraph-ubigraph"); 170 if (Opts.NoRetryExhausted) 171 Res.push_back("-analyzer-disable-retry-exhausted"); 172 173 for (unsigned i = 0, e = Opts.CheckersControlList.size(); i != e; ++i) { 174 const std::pair<std::string, bool> &opt = Opts.CheckersControlList[i]; 175 if (opt.second) 176 Res.push_back("-analyzer-disable-checker"); 177 else 178 Res.push_back("-analyzer-checker"); 179 Res.push_back(opt.first); 180 } 181 } 182 183 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) { 184 switch (Opts.DebugInfo) { 185 case CodeGenOptions::NoDebugInfo: 186 break; 187 case CodeGenOptions::DebugLineTablesOnly: 188 Res.push_back("-gline-tables-only"); 189 break; 190 case CodeGenOptions::LimitedDebugInfo: 191 Res.push_back("-g"); 192 Res.push_back("-flimit-debug-info"); 193 break; 194 case CodeGenOptions::FullDebugInfo: 195 Res.push_back("-g"); 196 Res.push_back("-fno-limit-debug-info"); 197 break; 198 } 199 if (Opts.DisableLLVMOpts) 200 Res.push_back("-disable-llvm-optzns"); 201 if (Opts.DisableRedZone) 202 Res.push_back("-disable-red-zone"); 203 if (Opts.DisableTailCalls) 204 Res.push_back("-mdisable-tail-calls"); 205 if (!Opts.DebugCompilationDir.empty()) 206 Res.push_back("-fdebug-compilation-dir", Opts.DebugCompilationDir); 207 if (!Opts.DwarfDebugFlags.empty()) 208 Res.push_back("-dwarf-debug-flags", Opts.DwarfDebugFlags); 209 if (Opts.EmitGcovArcs) 210 Res.push_back("-femit-coverage-data"); 211 if (Opts.EmitGcovNotes) 212 Res.push_back("-femit-coverage-notes"); 213 if (!Opts.MergeAllConstants) 214 Res.push_back("-fno-merge-all-constants"); 215 if (Opts.NoCommon) 216 Res.push_back("-fno-common"); 217 if (Opts.ForbidGuardVariables) 218 Res.push_back("-fforbid-guard-variables"); 219 if (Opts.UseRegisterSizedBitfieldAccess) 220 Res.push_back("-fuse-register-sized-bitfield-access"); 221 if (Opts.NoImplicitFloat) 222 Res.push_back("-no-implicit-float"); 223 if (Opts.OmitLeafFramePointer) 224 Res.push_back("-momit-leaf-frame-pointer"); 225 if (Opts.OptimizeSize) { 226 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 227 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz"); 228 } else if (Opts.OptimizationLevel != 0) 229 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 230 if (!Opts.MainFileName.empty()) 231 Res.push_back("-main-file-name", Opts.MainFileName); 232 if (Opts.NoInfsFPMath) 233 Res.push_back("-menable-no-infinities"); 234 if (Opts.NoNaNsFPMath) 235 Res.push_back("-menable-no-nans"); 236 // SimplifyLibCalls is only derived. 237 // TimePasses is only derived. 238 // UnitAtATime is unused. 239 // Inlining is only derived. 240 241 // UnrollLoops is derived, but also accepts an option, no 242 // harm in pushing it back here. 243 if (Opts.UnrollLoops) 244 Res.push_back("-funroll-loops"); 245 if (Opts.DataSections) 246 Res.push_back("-fdata-sections"); 247 if (Opts.FunctionSections) 248 Res.push_back("-ffunction-sections"); 249 if (Opts.AsmVerbose) 250 Res.push_back("-masm-verbose"); 251 if (!Opts.CodeModel.empty()) 252 Res.push_back("-mcode-model", Opts.CodeModel); 253 if (Opts.CUDAIsDevice) 254 Res.push_back("-fcuda-is-device"); 255 if (!Opts.CXAAtExit) 256 Res.push_back("-fno-use-cxa-atexit"); 257 if (Opts.CXXCtorDtorAliases) 258 Res.push_back("-mconstructor-aliases"); 259 if (Opts.ObjCAutoRefCountExceptions) 260 Res.push_back("-fobjc-arc-eh"); 261 if (!Opts.DebugPass.empty()) { 262 Res.push_back("-mdebug-pass", Opts.DebugPass); 263 } 264 if (Opts.DisableFPElim) 265 Res.push_back("-mdisable-fp-elim"); 266 if (!Opts.FloatABI.empty()) 267 Res.push_back("-mfloat-abi", Opts.FloatABI); 268 if (!Opts.LimitFloatPrecision.empty()) 269 Res.push_back("-mlimit-float-precision", Opts.LimitFloatPrecision); 270 if (Opts.NoZeroInitializedInBSS) 271 Res.push_back("-mno-zero-initialized-bss"); 272 switch (Opts.getObjCDispatchMethod()) { 273 case CodeGenOptions::Legacy: 274 break; 275 case CodeGenOptions::Mixed: 276 Res.push_back("-fobjc-dispatch-method=mixed"); 277 break; 278 case CodeGenOptions::NonLegacy: 279 Res.push_back("-fobjc-dispatch-method=non-legacy"); 280 break; 281 } 282 if (Opts.BoundsChecking > 0) 283 Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking)); 284 if (Opts.NumRegisterParameters) 285 Res.push_back("-mregparm", llvm::utostr(Opts.NumRegisterParameters)); 286 if (Opts.NoGlobalMerge) 287 Res.push_back("-mno-global-merge"); 288 if (Opts.NoExecStack) 289 Res.push_back("-mnoexecstack"); 290 if (Opts.RelaxAll) 291 Res.push_back("-mrelax-all"); 292 if (Opts.SaveTempLabels) 293 Res.push_back("-msave-temp-labels"); 294 if (Opts.NoDwarf2CFIAsm) 295 Res.push_back("-fno-dwarf2-cfi-asm"); 296 if (Opts.NoDwarfDirectoryAsm) 297 Res.push_back("-fno-dwarf-directory-asm"); 298 if (Opts.SoftFloat) 299 Res.push_back("-msoft-float"); 300 if (Opts.StrictEnums) 301 Res.push_back("-fstrict-enums"); 302 if (Opts.UnwindTables) 303 Res.push_back("-munwind-tables"); 304 if (Opts.RelocationModel != "pic") 305 Res.push_back("-mrelocation-model", Opts.RelocationModel); 306 if (!Opts.VerifyModule) 307 Res.push_back("-disable-llvm-verifier"); 308 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) 309 Res.push_back("-backend-option", Opts.BackendOptions[i]); 310 } 311 312 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 313 ToArgsList &Res) { 314 if (Opts.IncludeSystemHeaders) 315 Res.push_back("-sys-header-deps"); 316 if (Opts.ShowHeaderIncludes) 317 Res.push_back("-H"); 318 if (!Opts.HeaderIncludeOutputFile.empty()) 319 Res.push_back("-header-include-file", Opts.HeaderIncludeOutputFile); 320 if (Opts.UsePhonyTargets) 321 Res.push_back("-MP"); 322 if (!Opts.OutputFile.empty()) 323 Res.push_back("-dependency-file", Opts.OutputFile); 324 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) 325 Res.push_back("-MT", Opts.Targets[i]); 326 } 327 328 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 329 ToArgsList &Res) { 330 if (Opts.IgnoreWarnings) 331 Res.push_back("-w"); 332 if (Opts.NoRewriteMacros) 333 Res.push_back("-Wno-rewrite-macros"); 334 if (Opts.Pedantic) 335 Res.push_back("-pedantic"); 336 if (Opts.PedanticErrors) 337 Res.push_back("-pedantic-errors"); 338 if (!Opts.ShowColumn) 339 Res.push_back("-fno-show-column"); 340 if (!Opts.ShowLocation) 341 Res.push_back("-fno-show-source-location"); 342 if (!Opts.ShowCarets) 343 Res.push_back("-fno-caret-diagnostics"); 344 if (!Opts.ShowFixits) 345 Res.push_back("-fno-diagnostics-fixit-info"); 346 if (Opts.ShowSourceRanges) 347 Res.push_back("-fdiagnostics-print-source-range-info"); 348 if (Opts.ShowParseableFixits) 349 Res.push_back("-fdiagnostics-parseable-fixits"); 350 if (Opts.ShowColors) 351 Res.push_back("-fcolor-diagnostics"); 352 if (Opts.VerifyDiagnostics) 353 Res.push_back("-verify"); 354 if (Opts.ShowOptionNames) 355 Res.push_back("-fdiagnostics-show-option"); 356 if (Opts.ShowCategories == 1) 357 Res.push_back("-fdiagnostics-show-category=id"); 358 else if (Opts.ShowCategories == 2) 359 Res.push_back("-fdiagnostics-show-category=name"); 360 switch (Opts.Format) { 361 case DiagnosticOptions::Clang: 362 Res.push_back("-fdiagnostics-format=clang"); break; 363 case DiagnosticOptions::Msvc: 364 Res.push_back("-fdiagnostics-format=msvc"); break; 365 case DiagnosticOptions::Vi: 366 Res.push_back("-fdiagnostics-format=vi"); break; 367 } 368 if (Opts.ErrorLimit) 369 Res.push_back("-ferror-limit", llvm::utostr(Opts.ErrorLimit)); 370 if (!Opts.DiagnosticLogFile.empty()) 371 Res.push_back("-diagnostic-log-file", Opts.DiagnosticLogFile); 372 if (Opts.MacroBacktraceLimit 373 != DiagnosticOptions::DefaultMacroBacktraceLimit) 374 Res.push_back("-fmacro-backtrace-limit", 375 llvm::utostr(Opts.MacroBacktraceLimit)); 376 if (Opts.TemplateBacktraceLimit 377 != DiagnosticOptions::DefaultTemplateBacktraceLimit) 378 Res.push_back("-ftemplate-backtrace-limit", 379 llvm::utostr(Opts.TemplateBacktraceLimit)); 380 if (Opts.ConstexprBacktraceLimit 381 != DiagnosticOptions::DefaultConstexprBacktraceLimit) 382 Res.push_back("-fconstexpr-backtrace-limit", 383 llvm::utostr(Opts.ConstexprBacktraceLimit)); 384 385 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) 386 Res.push_back("-ftabstop", llvm::utostr(Opts.TabStop)); 387 if (Opts.MessageLength) 388 Res.push_back("-fmessage-length", llvm::utostr(Opts.MessageLength)); 389 if (!Opts.DumpBuildInformation.empty()) 390 Res.push_back("-dump-build-information", Opts.DumpBuildInformation); 391 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 392 Res.push_back("-W" + Opts.Warnings[i]); 393 } 394 395 static const char *getInputKindName(InputKind Kind) { 396 switch (Kind) { 397 case IK_None: break; 398 case IK_AST: return "ast"; 399 case IK_Asm: return "assembler-with-cpp"; 400 case IK_C: return "c"; 401 case IK_CXX: return "c++"; 402 case IK_LLVM_IR: return "ir"; 403 case IK_ObjC: return "objective-c"; 404 case IK_ObjCXX: return "objective-c++"; 405 case IK_OpenCL: return "cl"; 406 case IK_CUDA: return "cuda"; 407 case IK_PreprocessedC: return "cpp-output"; 408 case IK_PreprocessedCXX: return "c++-cpp-output"; 409 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 410 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 411 } 412 413 llvm_unreachable("Unexpected language kind!"); 414 } 415 416 static const char *getActionName(frontend::ActionKind Kind) { 417 switch (Kind) { 418 case frontend::PluginAction: 419 llvm_unreachable("Invalid kind!"); 420 421 case frontend::ASTDump: return "-ast-dump"; 422 case frontend::ASTDumpXML: return "-ast-dump-xml"; 423 case frontend::ASTPrint: return "-ast-print"; 424 case frontend::ASTView: return "-ast-view"; 425 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 426 case frontend::DumpTokens: return "-dump-tokens"; 427 case frontend::EmitAssembly: return "-S"; 428 case frontend::EmitBC: return "-emit-llvm-bc"; 429 case frontend::EmitHTML: return "-emit-html"; 430 case frontend::EmitLLVM: return "-emit-llvm"; 431 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 432 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 433 case frontend::EmitObj: return "-emit-obj"; 434 case frontend::FixIt: return "-fixit"; 435 case frontend::GenerateModule: return "-emit-module"; 436 case frontend::GeneratePCH: return "-emit-pch"; 437 case frontend::GeneratePTH: return "-emit-pth"; 438 case frontend::InitOnly: return "-init-only"; 439 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 440 case frontend::PrintDeclContext: return "-print-decl-contexts"; 441 case frontend::PrintPreamble: return "-print-preamble"; 442 case frontend::PrintPreprocessedInput: return "-E"; 443 case frontend::RewriteMacros: return "-rewrite-macros"; 444 case frontend::RewriteObjC: return "-rewrite-objc"; 445 case frontend::RewriteTest: return "-rewrite-test"; 446 case frontend::RunAnalysis: return "-analyze"; 447 case frontend::MigrateSource: return "-migrate"; 448 case frontend::RunPreprocessorOnly: return "-Eonly"; 449 } 450 451 llvm_unreachable("Unexpected language kind!"); 452 } 453 454 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, ToArgsList &Res){ 455 if (!Opts.WorkingDir.empty()) 456 Res.push_back("-working-directory", Opts.WorkingDir); 457 } 458 459 static void FrontendOptsToArgs(const FrontendOptions &Opts, ToArgsList &Res) { 460 if (Opts.DisableFree) 461 Res.push_back("-disable-free"); 462 if (Opts.RelocatablePCH) 463 Res.push_back("-relocatable-pch"); 464 if (Opts.ShowHelp) 465 Res.push_back("-help"); 466 if (Opts.ShowMacrosInCodeCompletion) 467 Res.push_back("-code-completion-macros"); 468 if (Opts.ShowCodePatternsInCodeCompletion) 469 Res.push_back("-code-completion-patterns"); 470 if (!Opts.ShowGlobalSymbolsInCodeCompletion) 471 Res.push_back("-no-code-completion-globals"); 472 if (Opts.ShowStats) 473 Res.push_back("-print-stats"); 474 if (Opts.ShowTimers) 475 Res.push_back("-ftime-report"); 476 if (Opts.ShowVersion) 477 Res.push_back("-version"); 478 if (Opts.FixWhatYouCan) 479 Res.push_back("-fix-what-you-can"); 480 if (Opts.FixOnlyWarnings) 481 Res.push_back("-fix-only-warnings"); 482 if (Opts.FixAndRecompile) 483 Res.push_back("-fixit-recompile"); 484 if (Opts.FixToTemporaries) 485 Res.push_back("-fixit-to-temporary"); 486 switch (Opts.ARCMTAction) { 487 case FrontendOptions::ARCMT_None: 488 break; 489 case FrontendOptions::ARCMT_Check: 490 Res.push_back("-arcmt-check"); 491 break; 492 case FrontendOptions::ARCMT_Modify: 493 Res.push_back("-arcmt-modify"); 494 break; 495 case FrontendOptions::ARCMT_Migrate: 496 Res.push_back("-arcmt-migrate"); 497 break; 498 } 499 if (!Opts.MTMigrateDir.empty()) 500 Res.push_back("-mt-migrate-directory", Opts.MTMigrateDir); 501 if (!Opts.ARCMTMigrateReportOut.empty()) 502 Res.push_back("-arcmt-migrate-report-output", Opts.ARCMTMigrateReportOut); 503 if (Opts.ARCMTMigrateEmitARCErrors) 504 Res.push_back("-arcmt-migrate-emit-errors"); 505 506 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Literals) 507 Res.push_back("-objcmt-migrate-literals"); 508 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting) 509 Res.push_back("-objcmt-migrate-subscripting"); 510 511 bool NeedLang = false; 512 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 513 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].File) != 514 Opts.Inputs[i].Kind) 515 NeedLang = true; 516 if (NeedLang) 517 Res.push_back("-x", getInputKindName(Opts.Inputs[0].Kind)); 518 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 519 assert((!NeedLang || Opts.Inputs[i].Kind == Opts.Inputs[0].Kind) && 520 "Unable to represent this input vector!"); 521 Res.push_back(Opts.Inputs[i].File); 522 } 523 524 if (!Opts.OutputFile.empty()) 525 Res.push_back("-o", Opts.OutputFile); 526 if (!Opts.CodeCompletionAt.FileName.empty()) 527 Res.push_back("-code-completion-at", 528 Opts.CodeCompletionAt.FileName + ":" + 529 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 530 llvm::utostr(Opts.CodeCompletionAt.Column)); 531 if (Opts.ProgramAction != frontend::PluginAction) 532 Res.push_back(getActionName(Opts.ProgramAction)); 533 if (!Opts.ActionName.empty()) { 534 Res.push_back("-plugin", Opts.ActionName); 535 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) 536 Res.push_back("-plugin-arg-" + Opts.ActionName, Opts.PluginArgs[i]); 537 } 538 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) 539 Res.push_back("-load", Opts.Plugins[i]); 540 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 541 Res.push_back("-add-plugin", Opts.AddPluginActions[i]); 542 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai) 543 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i], 544 Opts.AddPluginArgs[i][ai]); 545 } 546 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) 547 Res.push_back("-ast-merge", Opts.ASTMergeFiles[i]); 548 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) 549 Res.push_back("-mllvm", Opts.LLVMArgs[i]); 550 if (!Opts.OverrideRecordLayoutsFile.empty()) 551 Res.push_back("-foverride-record-layout=" + Opts.OverrideRecordLayoutsFile); 552 } 553 554 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 555 ToArgsList &Res) { 556 if (Opts.Sysroot != "/") { 557 Res.push_back("-isysroot"); 558 Res.push_back(Opts.Sysroot); 559 } 560 561 /// User specified include entries. 562 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 563 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 564 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 565 llvm::report_fatal_error("Invalid option set!"); 566 if (E.IsUserSupplied) { 567 switch (E.Group) { 568 case frontend::After: 569 Res.push_back("-idirafter"); 570 break; 571 572 case frontend::Quoted: 573 Res.push_back("-iquote"); 574 break; 575 576 case frontend::System: 577 Res.push_back("-isystem"); 578 break; 579 580 case frontend::IndexHeaderMap: 581 Res.push_back("-index-header-map"); 582 Res.push_back(E.IsFramework? "-F" : "-I"); 583 break; 584 585 case frontend::CSystem: 586 Res.push_back("-c-isystem"); 587 break; 588 589 case frontend::CXXSystem: 590 Res.push_back("-cxx-isystem"); 591 break; 592 593 case frontend::ObjCSystem: 594 Res.push_back("-objc-isystem"); 595 break; 596 597 case frontend::ObjCXXSystem: 598 Res.push_back("-objcxx-isystem"); 599 break; 600 601 case frontend::Angled: 602 Res.push_back(E.IsFramework ? "-F" : "-I"); 603 break; 604 } 605 } else { 606 if (E.IsInternal) { 607 assert(E.Group == frontend::System && "Unexpected header search group"); 608 if (E.ImplicitExternC) 609 Res.push_back("-internal-externc-isystem"); 610 else 611 Res.push_back("-internal-isystem"); 612 } else { 613 if (E.Group != frontend::Angled && E.Group != frontend::System) 614 llvm::report_fatal_error("Invalid option set!"); 615 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 616 "-iwithprefix"); 617 } 618 } 619 Res.push_back(E.Path); 620 } 621 622 /// User-specified system header prefixes. 623 for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) { 624 if (Opts.SystemHeaderPrefixes[i].IsSystemHeader) 625 Res.push_back("-isystem-prefix"); 626 else 627 Res.push_back("-ino-system-prefix"); 628 629 Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix); 630 } 631 632 if (!Opts.ResourceDir.empty()) 633 Res.push_back("-resource-dir", Opts.ResourceDir); 634 if (!Opts.ModuleCachePath.empty()) 635 Res.push_back("-fmodule-cache-path", Opts.ModuleCachePath); 636 if (!Opts.UseStandardSystemIncludes) 637 Res.push_back("-nostdsysteminc"); 638 if (!Opts.UseStandardCXXIncludes) 639 Res.push_back("-nostdinc++"); 640 if (Opts.UseLibcxx) 641 Res.push_back("-stdlib=libc++"); 642 if (Opts.Verbose) 643 Res.push_back("-v"); 644 } 645 646 static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) { 647 LangOptions DefaultLangOpts; 648 649 // FIXME: Need to set -std to get all the implicit options. 650 651 // FIXME: We want to only pass options relative to the defaults, which 652 // requires constructing a target. :( 653 // 654 // It would be better to push the all target specific choices into the driver, 655 // so that everything below that was more uniform. 656 657 if (Opts.Trigraphs) 658 Res.push_back("-trigraphs"); 659 // Implicit based on the input kind: 660 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 661 // Implicit based on the input language standard: 662 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 663 if (Opts.DollarIdents) 664 Res.push_back("-fdollars-in-identifiers"); 665 if (Opts.GNUMode && !Opts.GNUKeywords) 666 Res.push_back("-fno-gnu-keywords"); 667 if (!Opts.GNUMode && Opts.GNUKeywords) 668 Res.push_back("-fgnu-keywords"); 669 if (Opts.MicrosoftExt) 670 Res.push_back("-fms-extensions"); 671 if (Opts.MicrosoftMode) 672 Res.push_back("-fms-compatibility"); 673 if (Opts.MSCVersion != 0) 674 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion)); 675 if (Opts.Borland) 676 Res.push_back("-fborland-extensions"); 677 if (Opts.ObjCDefaultSynthProperties) 678 Res.push_back("-fobjc-default-synthesize-properties"); 679 // NoInline is implicit. 680 if (!Opts.CXXOperatorNames) 681 Res.push_back("-fno-operator-names"); 682 if (Opts.PascalStrings) 683 Res.push_back("-fpascal-strings"); 684 if (Opts.CatchUndefined) 685 Res.push_back("-fcatch-undefined-behavior"); 686 if (Opts.AddressSanitizer) 687 Res.push_back("-faddress-sanitizer"); 688 if (Opts.ThreadSanitizer) 689 Res.push_back("-fthread-sanitizer"); 690 if (Opts.WritableStrings) 691 Res.push_back("-fwritable-strings"); 692 if (Opts.ConstStrings) 693 Res.push_back("-fconst-strings"); 694 if (!Opts.LaxVectorConversions) 695 Res.push_back("-fno-lax-vector-conversions"); 696 if (Opts.AltiVec) 697 Res.push_back("-faltivec"); 698 if (Opts.Exceptions) 699 Res.push_back("-fexceptions"); 700 if (Opts.ObjCExceptions) 701 Res.push_back("-fobjc-exceptions"); 702 if (Opts.CXXExceptions) 703 Res.push_back("-fcxx-exceptions"); 704 if (Opts.SjLjExceptions) 705 Res.push_back("-fsjlj-exceptions"); 706 if (Opts.TraditionalCPP) 707 Res.push_back("-traditional-cpp"); 708 if (!Opts.RTTI) 709 Res.push_back("-fno-rtti"); 710 if (Opts.MSBitfields) 711 Res.push_back("-mms-bitfields"); 712 if (Opts.Freestanding) 713 Res.push_back("-ffreestanding"); 714 if (Opts.NoBuiltin) 715 Res.push_back("-fno-builtin"); 716 if (!Opts.AssumeSaneOperatorNew) 717 Res.push_back("-fno-assume-sane-operator-new"); 718 if (!Opts.ThreadsafeStatics) 719 Res.push_back("-fno-threadsafe-statics"); 720 if (Opts.POSIXThreads) 721 Res.push_back("-pthread"); 722 if (Opts.Blocks) 723 Res.push_back("-fblocks"); 724 if (Opts.BlocksRuntimeOptional) 725 Res.push_back("-fblocks-runtime-optional"); 726 if (Opts.Modules) 727 Res.push_back("-fmodules"); 728 if (Opts.EmitAllDecls) 729 Res.push_back("-femit-all-decls"); 730 if (Opts.MathErrno) 731 Res.push_back("-fmath-errno"); 732 switch (Opts.getSignedOverflowBehavior()) { 733 case LangOptions::SOB_Undefined: break; 734 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 735 case LangOptions::SOB_Trapping: 736 Res.push_back("-ftrapv"); 737 if (!Opts.OverflowHandler.empty()) 738 Res.push_back("-ftrapv-handler", Opts.OverflowHandler); 739 break; 740 } 741 if (Opts.HeinousExtensions) 742 Res.push_back("-fheinous-gnu-extensions"); 743 // Optimize is implicit. 744 // OptimizeSize is implicit. 745 if (Opts.FastMath) 746 Res.push_back("-ffast-math"); 747 if (Opts.Static) 748 Res.push_back("-static-define"); 749 if (Opts.DumpRecordLayoutsSimple) 750 Res.push_back("-fdump-record-layouts-simple"); 751 else if (Opts.DumpRecordLayouts) 752 Res.push_back("-fdump-record-layouts"); 753 if (Opts.DumpVTableLayouts) 754 Res.push_back("-fdump-vtable-layouts"); 755 if (Opts.NoBitFieldTypeAlign) 756 Res.push_back("-fno-bitfield-type-alignment"); 757 if (Opts.PICLevel) 758 Res.push_back("-pic-level", llvm::utostr(Opts.PICLevel)); 759 if (Opts.PIELevel) 760 Res.push_back("-pie-level", llvm::utostr(Opts.PIELevel)); 761 if (Opts.ObjCGCBitmapPrint) 762 Res.push_back("-print-ivar-layout"); 763 if (Opts.NoConstantCFStrings) 764 Res.push_back("-fno-constant-cfstrings"); 765 if (!Opts.AccessControl) 766 Res.push_back("-fno-access-control"); 767 if (!Opts.CharIsSigned) 768 Res.push_back("-fno-signed-char"); 769 if (Opts.ShortWChar) 770 Res.push_back("-fshort-wchar"); 771 if (!Opts.ElideConstructors) 772 Res.push_back("-fno-elide-constructors"); 773 if (Opts.getGC() != LangOptions::NonGC) { 774 if (Opts.getGC() == LangOptions::HybridGC) { 775 Res.push_back("-fobjc-gc"); 776 } else { 777 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!"); 778 Res.push_back("-fobjc-gc-only"); 779 } 780 } 781 Res.push_back("-fobjc-runtime=" + Opts.ObjCRuntime.getAsString()); 782 if (Opts.ObjCAutoRefCount) 783 Res.push_back("-fobjc-arc"); 784 if (Opts.ObjCRuntimeHasWeak) 785 Res.push_back("-fobjc-runtime-has-weak"); 786 if (!Opts.ObjCInferRelatedResultType) 787 Res.push_back("-fno-objc-infer-related-result-type"); 788 789 if (Opts.AppleKext) 790 Res.push_back("-fapple-kext"); 791 792 if (Opts.getVisibilityMode() != DefaultVisibility) { 793 Res.push_back("-fvisibility"); 794 if (Opts.getVisibilityMode() == HiddenVisibility) { 795 Res.push_back("hidden"); 796 } else { 797 assert(Opts.getVisibilityMode() == ProtectedVisibility && 798 "Invalid visibility!"); 799 Res.push_back("protected"); 800 } 801 } 802 if (Opts.InlineVisibilityHidden) 803 Res.push_back("-fvisibility-inlines-hidden"); 804 805 if (Opts.getStackProtector() != 0) 806 Res.push_back("-stack-protector", llvm::utostr(Opts.getStackProtector())); 807 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) 808 Res.push_back("-ftemplate-depth", llvm::utostr(Opts.InstantiationDepth)); 809 if (Opts.ConstexprCallDepth != DefaultLangOpts.ConstexprCallDepth) 810 Res.push_back("-fconstexpr-depth", llvm::utostr(Opts.ConstexprCallDepth)); 811 if (!Opts.ObjCConstantStringClass.empty()) 812 Res.push_back("-fconstant-string-class", Opts.ObjCConstantStringClass); 813 if (Opts.FakeAddressSpaceMap) 814 Res.push_back("-ffake-address-space-map"); 815 if (Opts.ParseUnknownAnytype) 816 Res.push_back("-funknown-anytype"); 817 if (Opts.DebuggerSupport) 818 Res.push_back("-fdebugger-support"); 819 if (Opts.DebuggerCastResultToId) 820 Res.push_back("-fdebugger-cast-result-to-id"); 821 if (Opts.DebuggerObjCLiteral) 822 Res.push_back("-fdebugger-objc-literal"); 823 if (Opts.DelayedTemplateParsing) 824 Res.push_back("-fdelayed-template-parsing"); 825 if (Opts.Deprecated) 826 Res.push_back("-fdeprecated-macro"); 827 if (Opts.ApplePragmaPack) 828 Res.push_back("-fapple-pragma-pack"); 829 if (!Opts.CurrentModule.empty()) 830 Res.push_back("-fmodule-name=" + Opts.CurrentModule); 831 } 832 833 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 834 ToArgsList &Res) { 835 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 836 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 837 Opts.Macros[i].first); 838 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 839 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 840 Res.push_back("-include", Opts.Includes[i]); 841 } 842 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) 843 Res.push_back("-imacros", Opts.MacroIncludes[i]); 844 if (!Opts.UsePredefines) 845 Res.push_back("-undef"); 846 if (Opts.DetailedRecord) 847 Res.push_back("-detailed-preprocessing-record"); 848 if (!Opts.ImplicitPCHInclude.empty()) 849 Res.push_back("-include-pch", Opts.ImplicitPCHInclude); 850 if (!Opts.ImplicitPTHInclude.empty()) 851 Res.push_back("-include-pth", Opts.ImplicitPTHInclude); 852 if (!Opts.TokenCache.empty()) { 853 if (Opts.ImplicitPTHInclude.empty()) 854 Res.push_back("-token-cache", Opts.TokenCache); 855 else 856 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 857 "Unsupported option combination!"); 858 } 859 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i) 860 Res.push_back("-chain-include", Opts.ChainedIncludes[i]); 861 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 862 Res.push_back("-remap-file", Opts.RemappedFiles[i].first + ";" + 863 Opts.RemappedFiles[i].second); 864 } 865 } 866 867 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 868 ToArgsList &Res) { 869 if (!Opts.ShowCPP && !Opts.ShowMacros) 870 llvm::report_fatal_error("Invalid option combination!"); 871 872 if (Opts.ShowCPP && Opts.ShowMacros) 873 Res.push_back("-dD"); 874 else if (!Opts.ShowCPP && Opts.ShowMacros) 875 Res.push_back("-dM"); 876 877 if (!Opts.ShowLineMarkers) 878 Res.push_back("-P"); 879 if (Opts.ShowComments) 880 Res.push_back("-C"); 881 if (Opts.ShowMacroComments) 882 Res.push_back("-CC"); 883 } 884 885 static void TargetOptsToArgs(const TargetOptions &Opts, 886 ToArgsList &Res) { 887 Res.push_back("-triple"); 888 Res.push_back(Opts.Triple); 889 if (!Opts.CPU.empty()) 890 Res.push_back("-target-cpu", Opts.CPU); 891 if (!Opts.ABI.empty()) 892 Res.push_back("-target-abi", Opts.ABI); 893 if (!Opts.LinkerVersion.empty()) 894 Res.push_back("-target-linker-version", Opts.LinkerVersion); 895 if (!Opts.CXXABI.empty()) 896 Res.push_back("-cxx-abi", Opts.CXXABI); 897 for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) 898 Res.push_back("-target-feature", Opts.Features[i]); 899 } 900 901 void CompilerInvocation::toArgs(std::vector<std::string> &Res) const { 902 ToArgsList List(Res); 903 AnalyzerOptsToArgs(getAnalyzerOpts(), List); 904 CodeGenOptsToArgs(getCodeGenOpts(), List); 905 DependencyOutputOptsToArgs(getDependencyOutputOpts(), List); 906 DiagnosticOptsToArgs(getDiagnosticOpts(), List); 907 FileSystemOptsToArgs(getFileSystemOpts(), List); 908 FrontendOptsToArgs(getFrontendOpts(), List); 909 HeaderSearchOptsToArgs(getHeaderSearchOpts(), List); 910 LangOptsToArgs(*getLangOpts(), List); 911 PreprocessorOptsToArgs(getPreprocessorOpts(), List); 912 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), List); 913 TargetOptsToArgs(getTargetOpts(), List); 914 } 915 916 //===----------------------------------------------------------------------===// 917 // Deserialization (to args) 918 //===----------------------------------------------------------------------===// 919 920 using namespace clang::driver; 921 using namespace clang::driver::options; 922 923 // 924 925 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 926 DiagnosticsEngine &Diags) { 927 unsigned DefaultOpt = 0; 928 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 929 DefaultOpt = 2; 930 931 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 932 if (A->getOption().matches(options::OPT_O0)) 933 return 0; 934 935 assert (A->getOption().matches(options::OPT_O)); 936 937 llvm::StringRef S(A->getValue(Args)); 938 if (S == "s" || S == "z" || S.empty()) 939 return 2; 940 941 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 942 } 943 944 return DefaultOpt; 945 } 946 947 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 948 DiagnosticsEngine &Diags) { 949 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 950 if (A->getOption().matches(options::OPT_O)) { 951 switch (A->getValue(Args)[0]) { 952 default: 953 return 0; 954 case 's': 955 return 1; 956 case 'z': 957 return 2; 958 } 959 } 960 } 961 return 0; 962 } 963 964 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 965 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 966 E = Args.filtered_end(); I != E; ++I) { 967 Arg *A = *I; 968 // If the argument is a pure flag, add its name (minus the "-W" at the beginning) 969 // to the warning list. Else, add its value (for the OPT_W case). 970 if (A->getOption().getKind() == Option::FlagClass) { 971 Warnings.push_back(A->getOption().getName().substr(2)); 972 } else { 973 for (unsigned Idx = 0, End = A->getNumValues(); 974 Idx < End; ++Idx) { 975 StringRef V = A->getValue(Args, Idx); 976 // "-Wl," and such are not warning options. 977 // FIXME: Should be handled by putting these in separate flags. 978 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 979 continue; 980 981 Warnings.push_back(V); 982 } 983 } 984 } 985 } 986 987 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 988 DiagnosticsEngine &Diags) { 989 using namespace options; 990 bool Success = true; 991 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 992 StringRef Name = A->getValue(Args); 993 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 994 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 995 .Case(CMDFLAG, NAME##Model) 996 #include "clang/Frontend/Analyses.def" 997 .Default(NumStores); 998 if (Value == NumStores) { 999 Diags.Report(diag::err_drv_invalid_value) 1000 << A->getAsString(Args) << Name; 1001 Success = false; 1002 } else { 1003 Opts.AnalysisStoreOpt = Value; 1004 } 1005 } 1006 1007 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1008 StringRef Name = A->getValue(Args); 1009 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1010 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1011 .Case(CMDFLAG, NAME##Model) 1012 #include "clang/Frontend/Analyses.def" 1013 .Default(NumConstraints); 1014 if (Value == NumConstraints) { 1015 Diags.Report(diag::err_drv_invalid_value) 1016 << A->getAsString(Args) << Name; 1017 Success = false; 1018 } else { 1019 Opts.AnalysisConstraintsOpt = Value; 1020 } 1021 } 1022 1023 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1024 StringRef Name = A->getValue(Args); 1025 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1026 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 1027 .Case(CMDFLAG, PD_##NAME) 1028 #include "clang/Frontend/Analyses.def" 1029 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1030 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1031 Diags.Report(diag::err_drv_invalid_value) 1032 << A->getAsString(Args) << Name; 1033 Success = false; 1034 } else { 1035 Opts.AnalysisDiagOpt = Value; 1036 } 1037 } 1038 1039 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1040 StringRef Name = A->getValue(Args); 1041 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1042 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1043 .Case(CMDFLAG, NAME) 1044 #include "clang/Frontend/Analyses.def" 1045 .Default(NumPurgeModes); 1046 if (Value == NumPurgeModes) { 1047 Diags.Report(diag::err_drv_invalid_value) 1048 << A->getAsString(Args) << Name; 1049 Success = false; 1050 } else { 1051 Opts.AnalysisPurgeOpt = Value; 1052 } 1053 } 1054 1055 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 1056 StringRef Name = A->getValue(Args); 1057 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 1058 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 1059 .Case(CMDFLAG, NAME) 1060 #include "clang/Frontend/Analyses.def" 1061 .Default(NumIPAModes); 1062 if (Value == NumIPAModes) { 1063 Diags.Report(diag::err_drv_invalid_value) 1064 << A->getAsString(Args) << Name; 1065 Success = false; 1066 } else { 1067 Opts.IPAMode = Value; 1068 } 1069 } 1070 1071 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1072 StringRef Name = A->getValue(Args); 1073 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1074 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1075 .Case(CMDFLAG, NAME) 1076 #include "clang/Frontend/Analyses.def" 1077 .Default(NumInliningModes); 1078 if (Value == NumInliningModes) { 1079 Diags.Report(diag::err_drv_invalid_value) 1080 << A->getAsString(Args) << Name; 1081 Success = false; 1082 } else { 1083 Opts.InliningMode = Value; 1084 } 1085 } 1086 1087 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 1088 Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 1089 Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 1090 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 1091 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 1092 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 1093 Opts.AnalyzeNestedBlocks = 1094 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 1095 Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume); 1096 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 1097 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 1098 Opts.CFGAddImplicitDtors = Args.hasArg(OPT_analysis_CFGAddImplicitDtors); 1099 Opts.CFGAddInitializers = Args.hasArg(OPT_analysis_CFGAddInitializers); 1100 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 1101 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 1102 Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 1103 Opts.EagerlyTrimEGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph); 1104 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 1105 Opts.InlineMaxStackDepth = 1106 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 1107 Opts.InlineMaxStackDepth, Diags); 1108 Opts.InlineMaxFunctionSize = 1109 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 1110 Opts.InlineMaxFunctionSize, Diags); 1111 1112 Opts.CheckersControlList.clear(); 1113 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 1114 OPT_analyzer_disable_checker), 1115 ie = Args.filtered_end(); it != ie; ++it) { 1116 const Arg *A = *it; 1117 A->claim(); 1118 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 1119 // We can have a list of comma separated checker names, e.g: 1120 // '-analyzer-checker=cocoa,unix' 1121 StringRef checkerList = A->getValue(Args); 1122 SmallVector<StringRef, 4> checkers; 1123 checkerList.split(checkers, ","); 1124 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 1125 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 1126 } 1127 1128 return Success; 1129 } 1130 1131 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 1132 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 1133 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 1134 return true; 1135 } 1136 1137 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1138 DiagnosticsEngine &Diags) { 1139 using namespace options; 1140 bool Success = true; 1141 1142 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 1143 if (OptLevel > 3) { 1144 Diags.Report(diag::err_drv_invalid_value) 1145 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 1146 OptLevel = 3; 1147 Success = false; 1148 } 1149 Opts.OptimizationLevel = OptLevel; 1150 1151 // We must always run at least the always inlining pass. 1152 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 1153 : CodeGenOptions::OnlyAlwaysInlining; 1154 // -fno-inline-functions overrides OptimizationLevel > 1. 1155 Opts.NoInline = Args.hasArg(OPT_fno_inline); 1156 Opts.Inlining = Args.hasArg(OPT_fno_inline_functions) ? 1157 CodeGenOptions::OnlyAlwaysInlining : Opts.Inlining; 1158 1159 if (Args.hasArg(OPT_gline_tables_only)) { 1160 Opts.DebugInfo = CodeGenOptions::DebugLineTablesOnly; 1161 } else if (Args.hasArg(OPT_g_Flag)) { 1162 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 1163 Opts.DebugInfo = CodeGenOptions::LimitedDebugInfo; 1164 else 1165 Opts.DebugInfo = CodeGenOptions::FullDebugInfo; 1166 } 1167 1168 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 1169 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 1170 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 1171 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 1172 OPT_fuse_register_sized_bitfield_access); 1173 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 1174 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 1175 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 1176 Opts.NoCommon = Args.hasArg(OPT_fno_common); 1177 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 1178 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 1179 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1180 Args.hasArg(OPT_ffreestanding)); 1181 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 1182 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 1183 1184 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 1185 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1186 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 1187 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1188 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1189 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 1190 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 1191 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 1192 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1193 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 1194 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 1195 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 1196 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 1197 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 1198 Args.hasArg(OPT_cl_finite_math_only)|| 1199 Args.hasArg(OPT_cl_fast_relaxed_math)); 1200 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 1201 Args.hasArg(OPT_cl_finite_math_only)|| 1202 Args.hasArg(OPT_cl_fast_relaxed_math)); 1203 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 1204 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 1205 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 1206 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 1207 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1208 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1209 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 1210 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1211 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 1212 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1213 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1214 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1215 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1216 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1217 Args.hasArg(OPT_cl_fast_relaxed_math); 1218 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1219 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 1220 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 1221 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 1222 Diags); 1223 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 1224 1225 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1226 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1227 1228 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 1229 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1230 1231 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1232 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1233 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1234 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1235 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 1236 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1237 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 1238 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1239 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1240 StringRef Val = A->getValue(Args); 1241 Val.getAsInteger(10, Opts.StackAlignment); 1242 } 1243 1244 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1245 StringRef Name = A->getValue(Args); 1246 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1247 .Case("legacy", CodeGenOptions::Legacy) 1248 .Case("non-legacy", CodeGenOptions::NonLegacy) 1249 .Case("mixed", CodeGenOptions::Mixed) 1250 .Default(~0U); 1251 if (Method == ~0U) { 1252 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1253 Success = false; 1254 } else { 1255 Opts.ObjCDispatchMethod = Method; 1256 } 1257 } 1258 1259 return Success; 1260 } 1261 1262 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1263 ArgList &Args) { 1264 using namespace options; 1265 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1266 Opts.Targets = Args.getAllArgValues(OPT_MT); 1267 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1268 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1269 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1270 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1271 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1272 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1273 } 1274 1275 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1276 DiagnosticsEngine *Diags) { 1277 using namespace options; 1278 bool Success = true; 1279 1280 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1281 Opts.DiagnosticSerializationFile = 1282 Args.getLastArgValue(OPT_diagnostic_serialized_file); 1283 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1284 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1285 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1286 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1287 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1288 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 1289 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1290 OPT_fno_show_column, 1291 /*Default=*/true); 1292 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1293 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1294 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 1295 1296 // Default behavior is to not to show note include stacks. 1297 Opts.ShowNoteIncludeStack = false; 1298 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1299 OPT_fno_diagnostics_show_note_include_stack)) 1300 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1301 Opts.ShowNoteIncludeStack = true; 1302 1303 StringRef ShowOverloads = 1304 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1305 if (ShowOverloads == "best") 1306 Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best; 1307 else if (ShowOverloads == "all") 1308 Opts.ShowOverloads = DiagnosticsEngine::Ovl_All; 1309 else { 1310 Success = false; 1311 if (Diags) 1312 Diags->Report(diag::err_drv_invalid_value) 1313 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1314 << ShowOverloads; 1315 } 1316 1317 StringRef ShowCategory = 1318 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1319 if (ShowCategory == "none") 1320 Opts.ShowCategories = 0; 1321 else if (ShowCategory == "id") 1322 Opts.ShowCategories = 1; 1323 else if (ShowCategory == "name") 1324 Opts.ShowCategories = 2; 1325 else { 1326 Success = false; 1327 if (Diags) 1328 Diags->Report(diag::err_drv_invalid_value) 1329 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1330 << ShowCategory; 1331 } 1332 1333 StringRef Format = 1334 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1335 if (Format == "clang") 1336 Opts.Format = DiagnosticOptions::Clang; 1337 else if (Format == "msvc") 1338 Opts.Format = DiagnosticOptions::Msvc; 1339 else if (Format == "vi") 1340 Opts.Format = DiagnosticOptions::Vi; 1341 else { 1342 Success = false; 1343 if (Diags) 1344 Diags->Report(diag::err_drv_invalid_value) 1345 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1346 << Format; 1347 } 1348 1349 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1350 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1351 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1352 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1353 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1354 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 1355 Opts.MacroBacktraceLimit 1356 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 1357 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1358 Opts.TemplateBacktraceLimit 1359 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 1360 DiagnosticOptions::DefaultTemplateBacktraceLimit, 1361 Diags); 1362 Opts.ConstexprBacktraceLimit 1363 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 1364 DiagnosticOptions::DefaultConstexprBacktraceLimit, 1365 Diags); 1366 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 1367 DiagnosticOptions::DefaultTabStop, Diags); 1368 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1369 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1370 if (Diags) 1371 Diags->Report(diag::warn_ignoring_ftabstop_value) 1372 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1373 } 1374 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 1375 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 1376 addWarningArgs(Args, Opts.Warnings); 1377 1378 return Success; 1379 } 1380 1381 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1382 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1383 } 1384 1385 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1386 DiagnosticsEngine &Diags) { 1387 using namespace options; 1388 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1389 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1390 switch (A->getOption().getID()) { 1391 default: 1392 llvm_unreachable("Invalid option in group!"); 1393 case OPT_ast_dump: 1394 Opts.ProgramAction = frontend::ASTDump; break; 1395 case OPT_ast_dump_xml: 1396 Opts.ProgramAction = frontend::ASTDumpXML; break; 1397 case OPT_ast_print: 1398 Opts.ProgramAction = frontend::ASTPrint; break; 1399 case OPT_ast_view: 1400 Opts.ProgramAction = frontend::ASTView; break; 1401 case OPT_dump_raw_tokens: 1402 Opts.ProgramAction = frontend::DumpRawTokens; break; 1403 case OPT_dump_tokens: 1404 Opts.ProgramAction = frontend::DumpTokens; break; 1405 case OPT_S: 1406 Opts.ProgramAction = frontend::EmitAssembly; break; 1407 case OPT_emit_llvm_bc: 1408 Opts.ProgramAction = frontend::EmitBC; break; 1409 case OPT_emit_html: 1410 Opts.ProgramAction = frontend::EmitHTML; break; 1411 case OPT_emit_llvm: 1412 Opts.ProgramAction = frontend::EmitLLVM; break; 1413 case OPT_emit_llvm_only: 1414 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1415 case OPT_emit_codegen_only: 1416 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1417 case OPT_emit_obj: 1418 Opts.ProgramAction = frontend::EmitObj; break; 1419 case OPT_fixit_EQ: 1420 Opts.FixItSuffix = A->getValue(Args); 1421 // fall-through! 1422 case OPT_fixit: 1423 Opts.ProgramAction = frontend::FixIt; break; 1424 case OPT_emit_module: 1425 Opts.ProgramAction = frontend::GenerateModule; break; 1426 case OPT_emit_pch: 1427 Opts.ProgramAction = frontend::GeneratePCH; break; 1428 case OPT_emit_pth: 1429 Opts.ProgramAction = frontend::GeneratePTH; break; 1430 case OPT_init_only: 1431 Opts.ProgramAction = frontend::InitOnly; break; 1432 case OPT_fsyntax_only: 1433 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1434 case OPT_print_decl_contexts: 1435 Opts.ProgramAction = frontend::PrintDeclContext; break; 1436 case OPT_print_preamble: 1437 Opts.ProgramAction = frontend::PrintPreamble; break; 1438 case OPT_E: 1439 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1440 case OPT_rewrite_macros: 1441 Opts.ProgramAction = frontend::RewriteMacros; break; 1442 case OPT_rewrite_objc: 1443 Opts.ProgramAction = frontend::RewriteObjC; break; 1444 case OPT_rewrite_test: 1445 Opts.ProgramAction = frontend::RewriteTest; break; 1446 case OPT_analyze: 1447 Opts.ProgramAction = frontend::RunAnalysis; break; 1448 case OPT_migrate: 1449 Opts.ProgramAction = frontend::MigrateSource; break; 1450 case OPT_Eonly: 1451 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1452 } 1453 } 1454 1455 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1456 Opts.Plugins.push_back(A->getValue(Args,0)); 1457 Opts.ProgramAction = frontend::PluginAction; 1458 Opts.ActionName = A->getValue(Args); 1459 1460 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1461 end = Args.filtered_end(); it != end; ++it) { 1462 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1463 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1464 } 1465 } 1466 1467 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1468 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 1469 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 1470 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1471 end = Args.filtered_end(); it != end; ++it) { 1472 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 1473 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 1474 } 1475 } 1476 1477 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1478 Opts.CodeCompletionAt = 1479 ParsedSourceLocation::FromString(A->getValue(Args)); 1480 if (Opts.CodeCompletionAt.FileName.empty()) 1481 Diags.Report(diag::err_drv_invalid_value) 1482 << A->getAsString(Args) << A->getValue(Args); 1483 } 1484 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1485 1486 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1487 Opts.Plugins = Args.getAllArgValues(OPT_load); 1488 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1489 Opts.ShowHelp = Args.hasArg(OPT_help); 1490 Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros); 1491 Opts.ShowCodePatternsInCodeCompletion 1492 = Args.hasArg(OPT_code_completion_patterns); 1493 Opts.ShowGlobalSymbolsInCodeCompletion 1494 = !Args.hasArg(OPT_no_code_completion_globals); 1495 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1496 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1497 Opts.ShowVersion = Args.hasArg(OPT_version); 1498 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1499 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1500 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1501 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1502 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1503 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1504 Opts.OverrideRecordLayoutsFile 1505 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1506 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1507 OPT_arcmt_modify, 1508 OPT_arcmt_migrate)) { 1509 switch (A->getOption().getID()) { 1510 default: 1511 llvm_unreachable("missed a case"); 1512 case OPT_arcmt_check: 1513 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1514 break; 1515 case OPT_arcmt_modify: 1516 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1517 break; 1518 case OPT_arcmt_migrate: 1519 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1520 break; 1521 } 1522 } 1523 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1524 Opts.ARCMTMigrateReportOut 1525 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1526 Opts.ARCMTMigrateEmitARCErrors 1527 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1528 1529 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1530 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1531 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1532 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1533 1534 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1535 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1536 Diags.Report(diag::err_drv_argument_not_allowed_with) 1537 << "ARC migration" << "ObjC migration"; 1538 } 1539 1540 InputKind DashX = IK_None; 1541 if (const Arg *A = Args.getLastArg(OPT_x)) { 1542 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1543 .Case("c", IK_C) 1544 .Case("cl", IK_OpenCL) 1545 .Case("cuda", IK_CUDA) 1546 .Case("c++", IK_CXX) 1547 .Case("objective-c", IK_ObjC) 1548 .Case("objective-c++", IK_ObjCXX) 1549 .Case("cpp-output", IK_PreprocessedC) 1550 .Case("assembler-with-cpp", IK_Asm) 1551 .Case("c++-cpp-output", IK_PreprocessedCXX) 1552 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1553 .Case("objc-cpp-output", IK_PreprocessedObjC) 1554 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1555 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1556 .Case("c-header", IK_C) 1557 .Case("cl-header", IK_OpenCL) 1558 .Case("objective-c-header", IK_ObjC) 1559 .Case("c++-header", IK_CXX) 1560 .Case("objective-c++-header", IK_ObjCXX) 1561 .Case("ast", IK_AST) 1562 .Case("ir", IK_LLVM_IR) 1563 .Default(IK_None); 1564 if (DashX == IK_None) 1565 Diags.Report(diag::err_drv_invalid_value) 1566 << A->getAsString(Args) << A->getValue(Args); 1567 } 1568 1569 // '-' is the default input if none is given. 1570 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1571 Opts.Inputs.clear(); 1572 if (Inputs.empty()) 1573 Inputs.push_back("-"); 1574 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1575 InputKind IK = DashX; 1576 if (IK == IK_None) { 1577 IK = FrontendOptions::getInputKindForExtension( 1578 StringRef(Inputs[i]).rsplit('.').second); 1579 // FIXME: Remove this hack. 1580 if (i == 0) 1581 DashX = IK; 1582 } 1583 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1584 } 1585 1586 return DashX; 1587 } 1588 1589 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1590 void *MainAddr) { 1591 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1592 1593 if (!P.isEmpty()) { 1594 P.eraseComponent(); // Remove /clang from foo/bin/clang 1595 P.eraseComponent(); // Remove /bin from foo/bin 1596 1597 // Get foo/lib/clang/<version>/include 1598 P.appendComponent("lib"); 1599 P.appendComponent("clang"); 1600 P.appendComponent(CLANG_VERSION_STRING); 1601 } 1602 1603 return P.str(); 1604 } 1605 1606 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1607 using namespace options; 1608 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1609 Opts.Verbose = Args.hasArg(OPT_v); 1610 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1611 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1612 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1613 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1614 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 1615 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1616 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 1617 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1618 1619 // Add -I..., -F..., and -index-header-map options in order. 1620 bool IsIndexHeaderMap = false; 1621 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1622 OPT_index_header_map), 1623 ie = Args.filtered_end(); it != ie; ++it) { 1624 if ((*it)->getOption().matches(OPT_index_header_map)) { 1625 // -index-header-map applies to the next -I or -F. 1626 IsIndexHeaderMap = true; 1627 continue; 1628 } 1629 1630 frontend::IncludeDirGroup Group 1631 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1632 1633 Opts.AddPath((*it)->getValue(Args), Group, true, 1634 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 1635 IsIndexHeaderMap = false; 1636 } 1637 1638 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1639 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1640 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1641 OPT_iwithprefixbefore), 1642 ie = Args.filtered_end(); it != ie; ++it) { 1643 const Arg *A = *it; 1644 if (A->getOption().matches(OPT_iprefix)) 1645 Prefix = A->getValue(Args); 1646 else if (A->getOption().matches(OPT_iwithprefix)) 1647 Opts.AddPath(Prefix.str() + A->getValue(Args), 1648 frontend::System, false, false, false); 1649 else 1650 Opts.AddPath(Prefix.str() + A->getValue(Args), 1651 frontend::Angled, false, false, false); 1652 } 1653 1654 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1655 ie = Args.filtered_end(); it != ie; ++it) 1656 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 1657 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1658 ie = Args.filtered_end(); it != ie; ++it) 1659 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 1660 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1661 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1662 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 1663 !(*it)->getOption().matches(OPT_iwithsysroot)); 1664 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1665 ie = Args.filtered_end(); it != ie; ++it) 1666 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true, 1667 true); 1668 1669 // Add the paths for the various language specific isystem flags. 1670 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1671 ie = Args.filtered_end(); it != ie; ++it) 1672 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 1673 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1674 ie = Args.filtered_end(); it != ie; ++it) 1675 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 1676 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1677 ie = Args.filtered_end(); it != ie; ++it) 1678 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 1679 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1680 ie = Args.filtered_end(); it != ie; ++it) 1681 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 1682 true); 1683 1684 // Add the internal paths from a driver that detects standard include paths. 1685 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1686 OPT_internal_externc_isystem), 1687 E = Args.filtered_end(); 1688 I != E; ++I) 1689 Opts.AddPath((*I)->getValue(Args), frontend::System, 1690 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 1691 (*I)->getOption().matches(OPT_internal_externc_isystem)); 1692 1693 // Add the path prefixes which are implicitly treated as being system headers. 1694 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 1695 OPT_ino_system_prefix), 1696 E = Args.filtered_end(); 1697 I != E; ++I) 1698 Opts.AddSystemHeaderPrefix((*I)->getValue(Args), 1699 (*I)->getOption().matches(OPT_isystem_prefix)); 1700 } 1701 1702 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1703 LangStandard::Kind LangStd) { 1704 // Set some properties which depend solely on the input kind; it would be nice 1705 // to move these to the language standard, and have the driver resolve the 1706 // input kind + language standard. 1707 if (IK == IK_Asm) { 1708 Opts.AsmPreprocessor = 1; 1709 } else if (IK == IK_ObjC || 1710 IK == IK_ObjCXX || 1711 IK == IK_PreprocessedObjC || 1712 IK == IK_PreprocessedObjCXX) { 1713 Opts.ObjC1 = Opts.ObjC2 = 1; 1714 } 1715 1716 if (LangStd == LangStandard::lang_unspecified) { 1717 // Based on the base language, pick one. 1718 switch (IK) { 1719 case IK_None: 1720 case IK_AST: 1721 case IK_LLVM_IR: 1722 llvm_unreachable("Invalid input kind!"); 1723 case IK_OpenCL: 1724 LangStd = LangStandard::lang_opencl; 1725 break; 1726 case IK_CUDA: 1727 LangStd = LangStandard::lang_cuda; 1728 break; 1729 case IK_Asm: 1730 case IK_C: 1731 case IK_PreprocessedC: 1732 case IK_ObjC: 1733 case IK_PreprocessedObjC: 1734 LangStd = LangStandard::lang_gnu99; 1735 break; 1736 case IK_CXX: 1737 case IK_PreprocessedCXX: 1738 case IK_ObjCXX: 1739 case IK_PreprocessedObjCXX: 1740 LangStd = LangStandard::lang_gnucxx98; 1741 break; 1742 } 1743 } 1744 1745 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1746 Opts.BCPLComment = Std.hasBCPLComments(); 1747 Opts.C99 = Std.isC99(); 1748 Opts.C11 = Std.isC11(); 1749 Opts.CPlusPlus = Std.isCPlusPlus(); 1750 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1751 Opts.Digraphs = Std.hasDigraphs(); 1752 Opts.GNUMode = Std.isGNUMode(); 1753 Opts.GNUInline = !Std.isC99(); 1754 Opts.HexFloats = Std.hasHexFloats(); 1755 Opts.ImplicitInt = Std.hasImplicitInt(); 1756 1757 // Set OpenCL Version. 1758 if (LangStd == LangStandard::lang_opencl) { 1759 Opts.OpenCL = 1; 1760 Opts.OpenCLVersion = 100; 1761 } 1762 else if (LangStd == LangStandard::lang_opencl11) { 1763 Opts.OpenCL = 1; 1764 Opts.OpenCLVersion = 110; 1765 } 1766 else if (LangStd == LangStandard::lang_opencl12) { 1767 Opts.OpenCL = 1; 1768 Opts.OpenCLVersion = 120; 1769 } 1770 1771 // OpenCL has some additional defaults. 1772 if (Opts.OpenCL) { 1773 Opts.AltiVec = 0; 1774 Opts.CXXOperatorNames = 1; 1775 Opts.LaxVectorConversions = 0; 1776 Opts.DefaultFPContract = 1; 1777 } 1778 1779 if (LangStd == LangStandard::lang_cuda) 1780 Opts.CUDA = 1; 1781 1782 // OpenCL and C++ both have bool, true, false keywords. 1783 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1784 1785 Opts.GNUKeywords = Opts.GNUMode; 1786 Opts.CXXOperatorNames = Opts.CPlusPlus; 1787 1788 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1789 // is specified, or -std is set to a conforming mode. 1790 Opts.Trigraphs = !Opts.GNUMode; 1791 1792 Opts.DollarIdents = !Opts.AsmPreprocessor; 1793 } 1794 1795 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1796 DiagnosticsEngine &Diags) { 1797 // FIXME: Cleanup per-file based stuff. 1798 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1799 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1800 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1801 #define LANGSTANDARD(id, name, desc, features) \ 1802 .Case(name, LangStandard::lang_##id) 1803 #include "clang/Frontend/LangStandards.def" 1804 .Default(LangStandard::lang_unspecified); 1805 if (LangStd == LangStandard::lang_unspecified) 1806 Diags.Report(diag::err_drv_invalid_value) 1807 << A->getAsString(Args) << A->getValue(Args); 1808 else { 1809 // Valid standard, check to make sure language and standard are compatable. 1810 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1811 switch (IK) { 1812 case IK_C: 1813 case IK_ObjC: 1814 case IK_PreprocessedC: 1815 case IK_PreprocessedObjC: 1816 if (!(Std.isC89() || Std.isC99())) 1817 Diags.Report(diag::err_drv_argument_not_allowed_with) 1818 << A->getAsString(Args) << "C/ObjC"; 1819 break; 1820 case IK_CXX: 1821 case IK_ObjCXX: 1822 case IK_PreprocessedCXX: 1823 case IK_PreprocessedObjCXX: 1824 if (!Std.isCPlusPlus()) 1825 Diags.Report(diag::err_drv_argument_not_allowed_with) 1826 << A->getAsString(Args) << "C++/ObjC++"; 1827 break; 1828 case IK_OpenCL: 1829 if (!Std.isC99()) 1830 Diags.Report(diag::err_drv_argument_not_allowed_with) 1831 << A->getAsString(Args) << "OpenCL"; 1832 break; 1833 case IK_CUDA: 1834 if (!Std.isCPlusPlus()) 1835 Diags.Report(diag::err_drv_argument_not_allowed_with) 1836 << A->getAsString(Args) << "CUDA"; 1837 break; 1838 default: 1839 break; 1840 } 1841 } 1842 } 1843 1844 // -cl-std only applies for OpenCL language standards. 1845 // Override the -std option in this case. 1846 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1847 LangStandard::Kind OpenCLLangStd 1848 = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1849 .Case("CL", LangStandard::lang_opencl) 1850 .Case("CL1.1", LangStandard::lang_opencl11) 1851 .Case("CL1.2", LangStandard::lang_opencl12) 1852 .Default(LangStandard::lang_unspecified); 1853 1854 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1855 Diags.Report(diag::err_drv_invalid_value) 1856 << A->getAsString(Args) << A->getValue(Args); 1857 } 1858 else 1859 LangStd = OpenCLLangStd; 1860 } 1861 1862 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1863 1864 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1865 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1866 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1867 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1868 // name, as it doesn't seem a useful distinction. 1869 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1870 Opts.GNUKeywords); 1871 1872 if (Args.hasArg(OPT_fno_operator_names)) 1873 Opts.CXXOperatorNames = 0; 1874 1875 if (Opts.ObjC1) { 1876 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1877 StringRef value = arg->getValue(Args); 1878 if (Opts.ObjCRuntime.tryParse(value)) 1879 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1880 } 1881 1882 if (Args.hasArg(OPT_fobjc_gc_only)) 1883 Opts.setGC(LangOptions::GCOnly); 1884 else if (Args.hasArg(OPT_fobjc_gc)) 1885 Opts.setGC(LangOptions::HybridGC); 1886 else if (Args.hasArg(OPT_fobjc_arc)) { 1887 Opts.ObjCAutoRefCount = 1; 1888 if (!Opts.ObjCRuntime.isNonFragile()) 1889 Diags.Report(diag::err_arc_nonfragile_abi); 1890 } 1891 1892 Opts.ObjCRuntimeHasWeak = Opts.ObjCRuntime.hasWeak(); 1893 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1894 Opts.ObjCRuntimeHasWeak = 1; 1895 1896 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1897 Opts.ObjCInferRelatedResultType = 0; 1898 } 1899 1900 if (Args.hasArg(OPT_fgnu89_inline)) 1901 Opts.GNUInline = 1; 1902 1903 if (Args.hasArg(OPT_fapple_kext)) { 1904 if (!Opts.CPlusPlus) 1905 Diags.Report(diag::warn_c_kext); 1906 else 1907 Opts.AppleKext = 1; 1908 } 1909 1910 if (Args.hasArg(OPT_print_ivar_layout)) 1911 Opts.ObjCGCBitmapPrint = 1; 1912 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1913 Opts.NoConstantCFStrings = 1; 1914 1915 if (Args.hasArg(OPT_faltivec)) 1916 Opts.AltiVec = 1; 1917 1918 if (Args.hasArg(OPT_pthread)) 1919 Opts.POSIXThreads = 1; 1920 1921 if (Args.hasArg(OPT_fdelayed_template_parsing)) 1922 Opts.DelayedTemplateParsing = 1; 1923 1924 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1925 if (Vis == "default") 1926 Opts.setVisibilityMode(DefaultVisibility); 1927 else if (Vis == "hidden") 1928 Opts.setVisibilityMode(HiddenVisibility); 1929 else if (Vis == "protected") 1930 // FIXME: diagnose if target does not support protected visibility 1931 Opts.setVisibilityMode(ProtectedVisibility); 1932 else 1933 Diags.Report(diag::err_drv_invalid_value) 1934 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1935 1936 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1937 Opts.InlineVisibilityHidden = 1; 1938 1939 if (Args.hasArg(OPT_ftrapv)) { 1940 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1941 // Set the handler, if one is specified. 1942 Opts.OverflowHandler = 1943 Args.getLastArgValue(OPT_ftrapv_handler); 1944 } 1945 else if (Args.hasArg(OPT_fwrapv)) 1946 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1947 1948 if (Args.hasArg(OPT_trigraphs)) 1949 Opts.Trigraphs = 1; 1950 1951 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1952 OPT_fno_dollars_in_identifiers, 1953 Opts.DollarIdents); 1954 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1955 Opts.MicrosoftExt 1956 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 1957 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 1958 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 1959 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1960 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1961 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1962 Opts.ConstStrings); 1963 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1964 Opts.LaxVectorConversions = 0; 1965 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1966 Opts.ThreadsafeStatics = 0; 1967 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1968 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1969 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1970 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1971 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1972 1973 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1974 Opts.Blocks = Args.hasArg(OPT_fblocks); 1975 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1976 Opts.Modules = Args.hasArg(OPT_fmodules); 1977 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 1978 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 1979 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1980 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1981 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1982 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1983 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1984 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1985 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1986 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 1987 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024, 1988 Diags); 1989 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 1990 Diags); 1991 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1992 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 1993 0, Diags); 1994 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1995 Opts.ObjCConstantStringClass = 1996 Args.getLastArgValue(OPT_fconstant_string_class); 1997 Opts.ObjCDefaultSynthProperties = 1998 Args.hasArg(OPT_fobjc_default_synthesize_properties); 1999 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 2000 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2001 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 2002 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 2003 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 2004 Opts.Static = Args.hasArg(OPT_static_define); 2005 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2006 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2007 || Args.hasArg(OPT_fdump_record_layouts); 2008 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2009 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2010 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2011 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2012 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2013 Opts.MRTD = Args.hasArg(OPT_mrtd); 2014 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2015 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2016 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2017 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2018 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2019 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2020 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer); 2021 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer); 2022 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2023 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 2024 2025 // Record whether the __DEPRECATED define was requested. 2026 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2027 OPT_fno_deprecated_macro, 2028 Opts.Deprecated); 2029 2030 // FIXME: Eliminate this dependency. 2031 unsigned Opt = getOptimizationLevel(Args, IK, Diags); 2032 Opts.Optimize = Opt != 0; 2033 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 2034 2035 // This is the __NO_INLINE__ define, which just depends on things like the 2036 // optimization level and -fno-inline, not actually whether the backend has 2037 // inlining enabled. 2038 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2039 2040 Opts.FastMath = Args.hasArg(OPT_ffast_math); 2041 2042 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 2043 switch (SSP) { 2044 default: 2045 Diags.Report(diag::err_drv_invalid_value) 2046 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2047 break; 2048 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2049 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2050 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 2051 } 2052 } 2053 2054 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2055 FileManager &FileMgr, 2056 DiagnosticsEngine &Diags) { 2057 using namespace options; 2058 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2059 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2060 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2061 Opts.TokenCache = A->getValue(Args); 2062 else 2063 Opts.TokenCache = Opts.ImplicitPTHInclude; 2064 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2065 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2066 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2067 2068 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2069 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 2070 ie = Args.filtered_end(); it != ie; ++it) { 2071 const Arg *A = *it; 2072 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 2073 } 2074 2075 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2076 StringRef Value(A->getValue(Args)); 2077 size_t Comma = Value.find(','); 2078 unsigned Bytes = 0; 2079 unsigned EndOfLine = 0; 2080 2081 if (Comma == StringRef::npos || 2082 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2083 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2084 Diags.Report(diag::err_drv_preamble_format); 2085 else { 2086 Opts.PrecompiledPreambleBytes.first = Bytes; 2087 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2088 } 2089 } 2090 2091 // Add macros from the command line. 2092 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 2093 ie = Args.filtered_end(); it != ie; ++it) { 2094 if ((*it)->getOption().matches(OPT_D)) 2095 Opts.addMacroDef((*it)->getValue(Args)); 2096 else 2097 Opts.addMacroUndef((*it)->getValue(Args)); 2098 } 2099 2100 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2101 2102 // Add the ordered list of -includes. 2103 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 2104 OPT_include_pth), 2105 ie = Args.filtered_end(); it != ie; ++it) { 2106 const Arg *A = *it; 2107 // PCH is handled specially, we need to extra the original include path. 2108 if (A->getOption().matches(OPT_include_pch)) { 2109 std::string OriginalFile = 2110 ASTReader::getOriginalSourceFile(A->getValue(Args), FileMgr, Diags); 2111 if (OriginalFile.empty()) 2112 continue; 2113 2114 Opts.Includes.push_back(OriginalFile); 2115 } else 2116 Opts.Includes.push_back(A->getValue(Args)); 2117 } 2118 2119 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 2120 ie = Args.filtered_end(); it != ie; ++it) { 2121 const Arg *A = *it; 2122 Opts.ChainedIncludes.push_back(A->getValue(Args)); 2123 } 2124 2125 // Include 'altivec.h' if -faltivec option present 2126 if (Args.hasArg(OPT_faltivec)) 2127 Opts.Includes.push_back("altivec.h"); 2128 2129 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 2130 ie = Args.filtered_end(); it != ie; ++it) { 2131 const Arg *A = *it; 2132 std::pair<StringRef,StringRef> Split = 2133 StringRef(A->getValue(Args)).split(';'); 2134 2135 if (Split.second.empty()) { 2136 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2137 continue; 2138 } 2139 2140 Opts.addRemappedFile(Split.first, Split.second); 2141 } 2142 2143 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2144 StringRef Name = A->getValue(Args); 2145 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2146 .Case("libc++", ARCXX_libcxx) 2147 .Case("libstdc++", ARCXX_libstdcxx) 2148 .Case("none", ARCXX_nolib) 2149 .Default(~0U); 2150 if (Library == ~0U) 2151 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2152 else 2153 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2154 } 2155 } 2156 2157 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2158 ArgList &Args) { 2159 using namespace options; 2160 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2161 Opts.ShowComments = Args.hasArg(OPT_C); 2162 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2163 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2164 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2165 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2166 } 2167 2168 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 2169 using namespace options; 2170 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2171 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 2172 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2173 Opts.Features = Args.getAllArgValues(OPT_target_feature); 2174 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2175 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2176 2177 // Use the default target triple if unspecified. 2178 if (Opts.Triple.empty()) 2179 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2180 } 2181 2182 // 2183 2184 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2185 const char *const *ArgBegin, 2186 const char *const *ArgEnd, 2187 DiagnosticsEngine &Diags) { 2188 bool Success = true; 2189 2190 // Parse the arguments. 2191 OwningPtr<OptTable> Opts(createDriverOptTable()); 2192 unsigned MissingArgIndex, MissingArgCount; 2193 OwningPtr<InputArgList> Args( 2194 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 2195 2196 // Check for missing argument error. 2197 if (MissingArgCount) { 2198 Diags.Report(diag::err_drv_missing_argument) 2199 << Args->getArgString(MissingArgIndex) << MissingArgCount; 2200 Success = false; 2201 } 2202 2203 // Issue errors on unknown arguments. 2204 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 2205 ie = Args->filtered_end(); it != ie; ++it) { 2206 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 2207 Success = false; 2208 } 2209 2210 // Issue errors on arguments that are not valid for CC1. 2211 for (ArgList::iterator I = Args->begin(), E = Args->end(); 2212 I != E; ++I) { 2213 if (!(*I)->getOption().isCC1Option()) { 2214 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 2215 Success = false; 2216 } 2217 } 2218 2219 Success = ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags) && Success; 2220 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 2221 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 2222 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 2223 && Success; 2224 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 2225 // FIXME: We shouldn't have to pass the DashX option around here 2226 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 2227 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 2228 && Success; 2229 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 2230 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 2231 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 2232 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2233 Res.getLangOpts()->ObjCExceptions = 1; 2234 } 2235 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2236 // PCH file and find the original header name. Remove the need to do that in 2237 // ParsePreprocessorArgs and remove the FileManager 2238 // parameters from the function and the "FileManager.h" #include. 2239 FileManager FileMgr(Res.getFileSystemOpts()); 2240 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 2241 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 2242 ParseTargetArgs(Res.getTargetOpts(), *Args); 2243 2244 return Success; 2245 } 2246 2247 namespace { 2248 2249 class ModuleSignature { 2250 llvm::SmallVector<uint64_t, 16> Data; 2251 unsigned CurBit; 2252 uint64_t CurValue; 2253 2254 public: 2255 ModuleSignature() : CurBit(0), CurValue(0) { } 2256 2257 void add(uint64_t Value, unsigned Bits); 2258 void add(StringRef Value); 2259 void flush(); 2260 2261 llvm::APInt getAsInteger() const; 2262 }; 2263 } 2264 2265 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 2266 CurValue |= Value << CurBit; 2267 if (CurBit + NumBits < 64) { 2268 CurBit += NumBits; 2269 return; 2270 } 2271 2272 // Add the current word. 2273 Data.push_back(CurValue); 2274 2275 if (CurBit) 2276 CurValue = Value >> (64-CurBit); 2277 else 2278 CurValue = 0; 2279 CurBit = (CurBit+NumBits) & 63; 2280 } 2281 2282 void ModuleSignature::flush() { 2283 if (CurBit == 0) 2284 return; 2285 2286 Data.push_back(CurValue); 2287 CurBit = 0; 2288 CurValue = 0; 2289 } 2290 2291 void ModuleSignature::add(StringRef Value) { 2292 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 2293 add(*I, 8); 2294 } 2295 2296 llvm::APInt ModuleSignature::getAsInteger() const { 2297 return llvm::APInt(Data.size() * 64, Data); 2298 } 2299 2300 std::string CompilerInvocation::getModuleHash() const { 2301 ModuleSignature Signature; 2302 2303 // Start the signature with the compiler version. 2304 // FIXME: The full version string can be quite long. Omit it from the 2305 // module hash for now to avoid failures where the path name becomes too 2306 // long. An MD5 or similar checksum would work well here. 2307 // Signature.add(getClangFullRepositoryVersion()); 2308 2309 // Extend the signature with the language options 2310 #define LANGOPT(Name, Bits, Default, Description) \ 2311 Signature.add(LangOpts->Name, Bits); 2312 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2313 Signature.add(static_cast<unsigned>(LangOpts->get##Name()), Bits); 2314 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2315 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2316 #include "clang/Basic/LangOptions.def" 2317 2318 // Extend the signature with the target triple 2319 llvm::Triple T(TargetOpts.Triple); 2320 Signature.add((unsigned)T.getArch(), 5); 2321 Signature.add((unsigned)T.getVendor(), 4); 2322 Signature.add((unsigned)T.getOS(), 5); 2323 Signature.add((unsigned)T.getEnvironment(), 4); 2324 2325 // Extend the signature with preprocessor options. 2326 Signature.add(getPreprocessorOpts().UsePredefines, 1); 2327 Signature.add(getPreprocessorOpts().DetailedRecord, 1); 2328 2329 // Hash the preprocessor defines. 2330 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines. 2331 std::vector<StringRef> MacroDefs; 2332 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 2333 I = getPreprocessorOpts().Macros.begin(), 2334 IEnd = getPreprocessorOpts().Macros.end(); 2335 I != IEnd; ++I) { 2336 if (!I->second) 2337 MacroDefs.push_back(I->first); 2338 } 2339 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end()); 2340 2341 unsigned PPHashResult = 0; 2342 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I) 2343 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult); 2344 Signature.add(PPHashResult, 32); 2345 2346 // We've generated the signature. Treat it as one large APInt that we'll 2347 // encode in base-36 and return. 2348 Signature.flush(); 2349 return Signature.getAsInteger().toString(36, /*Signed=*/false); 2350 } 2351