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.ObjCRuntimeHasARC) 210 Res.push_back("-fobjc-runtime-has-arc"); 211 if (Opts.ObjCRuntimeHasTerminate) 212 Res.push_back("-fobjc-runtime-has-terminate"); 213 if (Opts.EmitGcovArcs) 214 Res.push_back("-femit-coverage-data"); 215 if (Opts.EmitGcovNotes) 216 Res.push_back("-femit-coverage-notes"); 217 if (!Opts.MergeAllConstants) 218 Res.push_back("-fno-merge-all-constants"); 219 if (Opts.NoCommon) 220 Res.push_back("-fno-common"); 221 if (Opts.ForbidGuardVariables) 222 Res.push_back("-fforbid-guard-variables"); 223 if (Opts.UseRegisterSizedBitfieldAccess) 224 Res.push_back("-fuse-register-sized-bitfield-access"); 225 if (Opts.NoImplicitFloat) 226 Res.push_back("-no-implicit-float"); 227 if (Opts.OmitLeafFramePointer) 228 Res.push_back("-momit-leaf-frame-pointer"); 229 if (Opts.OptimizeSize) { 230 assert(Opts.OptimizationLevel == 2 && "Invalid options!"); 231 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz"); 232 } else if (Opts.OptimizationLevel != 0) 233 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel)); 234 if (!Opts.MainFileName.empty()) 235 Res.push_back("-main-file-name", Opts.MainFileName); 236 if (Opts.NoInfsFPMath) 237 Res.push_back("-menable-no-infinities"); 238 if (Opts.NoNaNsFPMath) 239 Res.push_back("-menable-no-nans"); 240 // SimplifyLibCalls is only derived. 241 // TimePasses is only derived. 242 // UnitAtATime is unused. 243 // Inlining is only derived. 244 245 // UnrollLoops is derived, but also accepts an option, no 246 // harm in pushing it back here. 247 if (Opts.UnrollLoops) 248 Res.push_back("-funroll-loops"); 249 if (Opts.DataSections) 250 Res.push_back("-fdata-sections"); 251 if (Opts.FunctionSections) 252 Res.push_back("-ffunction-sections"); 253 if (Opts.AsmVerbose) 254 Res.push_back("-masm-verbose"); 255 if (!Opts.CodeModel.empty()) 256 Res.push_back("-mcode-model", Opts.CodeModel); 257 if (Opts.CUDAIsDevice) 258 Res.push_back("-fcuda-is-device"); 259 if (!Opts.CXAAtExit) 260 Res.push_back("-fno-use-cxa-atexit"); 261 if (Opts.CXXCtorDtorAliases) 262 Res.push_back("-mconstructor-aliases"); 263 if (Opts.ObjCAutoRefCountExceptions) 264 Res.push_back("-fobjc-arc-eh"); 265 if (!Opts.DebugPass.empty()) { 266 Res.push_back("-mdebug-pass", Opts.DebugPass); 267 } 268 if (Opts.DisableFPElim) 269 Res.push_back("-mdisable-fp-elim"); 270 if (!Opts.FloatABI.empty()) 271 Res.push_back("-mfloat-abi", Opts.FloatABI); 272 if (!Opts.LimitFloatPrecision.empty()) 273 Res.push_back("-mlimit-float-precision", Opts.LimitFloatPrecision); 274 if (Opts.NoZeroInitializedInBSS) 275 Res.push_back("-mno-zero-initialized-bss"); 276 switch (Opts.getObjCDispatchMethod()) { 277 case CodeGenOptions::Legacy: 278 break; 279 case CodeGenOptions::Mixed: 280 Res.push_back("-fobjc-dispatch-method=mixed"); 281 break; 282 case CodeGenOptions::NonLegacy: 283 Res.push_back("-fobjc-dispatch-method=non-legacy"); 284 break; 285 } 286 if (Opts.BoundsChecking > 0) 287 Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking)); 288 if (Opts.NumRegisterParameters) 289 Res.push_back("-mregparm", llvm::utostr(Opts.NumRegisterParameters)); 290 if (Opts.NoGlobalMerge) 291 Res.push_back("-mno-global-merge"); 292 if (Opts.NoExecStack) 293 Res.push_back("-mnoexecstack"); 294 if (Opts.RelaxAll) 295 Res.push_back("-mrelax-all"); 296 if (Opts.SaveTempLabels) 297 Res.push_back("-msave-temp-labels"); 298 if (Opts.NoDwarf2CFIAsm) 299 Res.push_back("-fno-dwarf2-cfi-asm"); 300 if (Opts.NoDwarfDirectoryAsm) 301 Res.push_back("-fno-dwarf-directory-asm"); 302 if (Opts.SoftFloat) 303 Res.push_back("-msoft-float"); 304 if (Opts.StrictEnums) 305 Res.push_back("-fstrict-enums"); 306 if (Opts.UnwindTables) 307 Res.push_back("-munwind-tables"); 308 if (Opts.RelocationModel != "pic") 309 Res.push_back("-mrelocation-model", Opts.RelocationModel); 310 if (!Opts.VerifyModule) 311 Res.push_back("-disable-llvm-verifier"); 312 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i) 313 Res.push_back("-backend-option", Opts.BackendOptions[i]); 314 } 315 316 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts, 317 ToArgsList &Res) { 318 if (Opts.IncludeSystemHeaders) 319 Res.push_back("-sys-header-deps"); 320 if (Opts.ShowHeaderIncludes) 321 Res.push_back("-H"); 322 if (!Opts.HeaderIncludeOutputFile.empty()) 323 Res.push_back("-header-include-file", Opts.HeaderIncludeOutputFile); 324 if (Opts.UsePhonyTargets) 325 Res.push_back("-MP"); 326 if (!Opts.OutputFile.empty()) 327 Res.push_back("-dependency-file", Opts.OutputFile); 328 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) 329 Res.push_back("-MT", Opts.Targets[i]); 330 } 331 332 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts, 333 ToArgsList &Res) { 334 if (Opts.IgnoreWarnings) 335 Res.push_back("-w"); 336 if (Opts.NoRewriteMacros) 337 Res.push_back("-Wno-rewrite-macros"); 338 if (Opts.Pedantic) 339 Res.push_back("-pedantic"); 340 if (Opts.PedanticErrors) 341 Res.push_back("-pedantic-errors"); 342 if (!Opts.ShowColumn) 343 Res.push_back("-fno-show-column"); 344 if (!Opts.ShowLocation) 345 Res.push_back("-fno-show-source-location"); 346 if (!Opts.ShowCarets) 347 Res.push_back("-fno-caret-diagnostics"); 348 if (!Opts.ShowFixits) 349 Res.push_back("-fno-diagnostics-fixit-info"); 350 if (Opts.ShowSourceRanges) 351 Res.push_back("-fdiagnostics-print-source-range-info"); 352 if (Opts.ShowParseableFixits) 353 Res.push_back("-fdiagnostics-parseable-fixits"); 354 if (Opts.ShowColors) 355 Res.push_back("-fcolor-diagnostics"); 356 if (Opts.VerifyDiagnostics) 357 Res.push_back("-verify"); 358 if (Opts.ShowOptionNames) 359 Res.push_back("-fdiagnostics-show-option"); 360 if (Opts.ShowCategories == 1) 361 Res.push_back("-fdiagnostics-show-category=id"); 362 else if (Opts.ShowCategories == 2) 363 Res.push_back("-fdiagnostics-show-category=name"); 364 switch (Opts.Format) { 365 case DiagnosticOptions::Clang: 366 Res.push_back("-fdiagnostics-format=clang"); break; 367 case DiagnosticOptions::Msvc: 368 Res.push_back("-fdiagnostics-format=msvc"); break; 369 case DiagnosticOptions::Vi: 370 Res.push_back("-fdiagnostics-format=vi"); break; 371 } 372 if (Opts.ErrorLimit) 373 Res.push_back("-ferror-limit", llvm::utostr(Opts.ErrorLimit)); 374 if (!Opts.DiagnosticLogFile.empty()) 375 Res.push_back("-diagnostic-log-file", Opts.DiagnosticLogFile); 376 if (Opts.MacroBacktraceLimit 377 != DiagnosticOptions::DefaultMacroBacktraceLimit) 378 Res.push_back("-fmacro-backtrace-limit", 379 llvm::utostr(Opts.MacroBacktraceLimit)); 380 if (Opts.TemplateBacktraceLimit 381 != DiagnosticOptions::DefaultTemplateBacktraceLimit) 382 Res.push_back("-ftemplate-backtrace-limit", 383 llvm::utostr(Opts.TemplateBacktraceLimit)); 384 if (Opts.ConstexprBacktraceLimit 385 != DiagnosticOptions::DefaultConstexprBacktraceLimit) 386 Res.push_back("-fconstexpr-backtrace-limit", 387 llvm::utostr(Opts.ConstexprBacktraceLimit)); 388 389 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) 390 Res.push_back("-ftabstop", llvm::utostr(Opts.TabStop)); 391 if (Opts.MessageLength) 392 Res.push_back("-fmessage-length", llvm::utostr(Opts.MessageLength)); 393 if (!Opts.DumpBuildInformation.empty()) 394 Res.push_back("-dump-build-information", Opts.DumpBuildInformation); 395 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i) 396 Res.push_back("-W" + Opts.Warnings[i]); 397 } 398 399 static const char *getInputKindName(InputKind Kind) { 400 switch (Kind) { 401 case IK_None: break; 402 case IK_AST: return "ast"; 403 case IK_Asm: return "assembler-with-cpp"; 404 case IK_C: return "c"; 405 case IK_CXX: return "c++"; 406 case IK_LLVM_IR: return "ir"; 407 case IK_ObjC: return "objective-c"; 408 case IK_ObjCXX: return "objective-c++"; 409 case IK_OpenCL: return "cl"; 410 case IK_CUDA: return "cuda"; 411 case IK_PreprocessedC: return "cpp-output"; 412 case IK_PreprocessedCXX: return "c++-cpp-output"; 413 case IK_PreprocessedObjC: return "objective-c-cpp-output"; 414 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output"; 415 } 416 417 llvm_unreachable("Unexpected language kind!"); 418 } 419 420 static const char *getActionName(frontend::ActionKind Kind) { 421 switch (Kind) { 422 case frontend::PluginAction: 423 llvm_unreachable("Invalid kind!"); 424 425 case frontend::ASTDump: return "-ast-dump"; 426 case frontend::ASTDumpXML: return "-ast-dump-xml"; 427 case frontend::ASTPrint: return "-ast-print"; 428 case frontend::ASTView: return "-ast-view"; 429 case frontend::DumpRawTokens: return "-dump-raw-tokens"; 430 case frontend::DumpTokens: return "-dump-tokens"; 431 case frontend::EmitAssembly: return "-S"; 432 case frontend::EmitBC: return "-emit-llvm-bc"; 433 case frontend::EmitHTML: return "-emit-html"; 434 case frontend::EmitLLVM: return "-emit-llvm"; 435 case frontend::EmitLLVMOnly: return "-emit-llvm-only"; 436 case frontend::EmitCodeGenOnly: return "-emit-codegen-only"; 437 case frontend::EmitObj: return "-emit-obj"; 438 case frontend::FixIt: return "-fixit"; 439 case frontend::GenerateModule: return "-emit-module"; 440 case frontend::GeneratePCH: return "-emit-pch"; 441 case frontend::GeneratePTH: return "-emit-pth"; 442 case frontend::InitOnly: return "-init-only"; 443 case frontend::ParseSyntaxOnly: return "-fsyntax-only"; 444 case frontend::PrintDeclContext: return "-print-decl-contexts"; 445 case frontend::PrintPreamble: return "-print-preamble"; 446 case frontend::PrintPreprocessedInput: return "-E"; 447 case frontend::RewriteMacros: return "-rewrite-macros"; 448 case frontend::RewriteObjC: return "-rewrite-objc"; 449 case frontend::RewriteTest: return "-rewrite-test"; 450 case frontend::RunAnalysis: return "-analyze"; 451 case frontend::MigrateSource: return "-migrate"; 452 case frontend::RunPreprocessorOnly: return "-Eonly"; 453 } 454 455 llvm_unreachable("Unexpected language kind!"); 456 } 457 458 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, ToArgsList &Res){ 459 if (!Opts.WorkingDir.empty()) 460 Res.push_back("-working-directory", Opts.WorkingDir); 461 } 462 463 static void FrontendOptsToArgs(const FrontendOptions &Opts, ToArgsList &Res) { 464 if (Opts.DisableFree) 465 Res.push_back("-disable-free"); 466 if (Opts.RelocatablePCH) 467 Res.push_back("-relocatable-pch"); 468 if (Opts.ShowHelp) 469 Res.push_back("-help"); 470 if (Opts.ShowMacrosInCodeCompletion) 471 Res.push_back("-code-completion-macros"); 472 if (Opts.ShowCodePatternsInCodeCompletion) 473 Res.push_back("-code-completion-patterns"); 474 if (!Opts.ShowGlobalSymbolsInCodeCompletion) 475 Res.push_back("-no-code-completion-globals"); 476 if (Opts.ShowStats) 477 Res.push_back("-print-stats"); 478 if (Opts.ShowTimers) 479 Res.push_back("-ftime-report"); 480 if (Opts.ShowVersion) 481 Res.push_back("-version"); 482 if (Opts.FixWhatYouCan) 483 Res.push_back("-fix-what-you-can"); 484 if (Opts.FixOnlyWarnings) 485 Res.push_back("-fix-only-warnings"); 486 if (Opts.FixAndRecompile) 487 Res.push_back("-fixit-recompile"); 488 if (Opts.FixToTemporaries) 489 Res.push_back("-fixit-to-temporary"); 490 switch (Opts.ARCMTAction) { 491 case FrontendOptions::ARCMT_None: 492 break; 493 case FrontendOptions::ARCMT_Check: 494 Res.push_back("-arcmt-check"); 495 break; 496 case FrontendOptions::ARCMT_Modify: 497 Res.push_back("-arcmt-modify"); 498 break; 499 case FrontendOptions::ARCMT_Migrate: 500 Res.push_back("-arcmt-migrate"); 501 break; 502 } 503 if (!Opts.MTMigrateDir.empty()) 504 Res.push_back("-mt-migrate-directory", Opts.MTMigrateDir); 505 if (!Opts.ARCMTMigrateReportOut.empty()) 506 Res.push_back("-arcmt-migrate-report-output", Opts.ARCMTMigrateReportOut); 507 if (Opts.ARCMTMigrateEmitARCErrors) 508 Res.push_back("-arcmt-migrate-emit-errors"); 509 510 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Literals) 511 Res.push_back("-objcmt-migrate-literals"); 512 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting) 513 Res.push_back("-objcmt-migrate-subscripting"); 514 515 bool NeedLang = false; 516 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) 517 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].File) != 518 Opts.Inputs[i].Kind) 519 NeedLang = true; 520 if (NeedLang) 521 Res.push_back("-x", getInputKindName(Opts.Inputs[0].Kind)); 522 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) { 523 assert((!NeedLang || Opts.Inputs[i].Kind == Opts.Inputs[0].Kind) && 524 "Unable to represent this input vector!"); 525 Res.push_back(Opts.Inputs[i].File); 526 } 527 528 if (!Opts.OutputFile.empty()) 529 Res.push_back("-o", Opts.OutputFile); 530 if (!Opts.CodeCompletionAt.FileName.empty()) 531 Res.push_back("-code-completion-at", 532 Opts.CodeCompletionAt.FileName + ":" + 533 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" + 534 llvm::utostr(Opts.CodeCompletionAt.Column)); 535 if (Opts.ProgramAction != frontend::PluginAction) 536 Res.push_back(getActionName(Opts.ProgramAction)); 537 if (!Opts.ActionName.empty()) { 538 Res.push_back("-plugin", Opts.ActionName); 539 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i) 540 Res.push_back("-plugin-arg-" + Opts.ActionName, Opts.PluginArgs[i]); 541 } 542 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) 543 Res.push_back("-load", Opts.Plugins[i]); 544 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 545 Res.push_back("-add-plugin", Opts.AddPluginActions[i]); 546 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai) 547 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i], 548 Opts.AddPluginArgs[i][ai]); 549 } 550 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) 551 Res.push_back("-ast-merge", Opts.ASTMergeFiles[i]); 552 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) 553 Res.push_back("-mllvm", Opts.LLVMArgs[i]); 554 if (!Opts.OverrideRecordLayoutsFile.empty()) 555 Res.push_back("-foverride-record-layout=" + Opts.OverrideRecordLayoutsFile); 556 } 557 558 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, 559 ToArgsList &Res) { 560 if (Opts.Sysroot != "/") { 561 Res.push_back("-isysroot"); 562 Res.push_back(Opts.Sysroot); 563 } 564 565 /// User specified include entries. 566 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) { 567 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i]; 568 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied)) 569 llvm::report_fatal_error("Invalid option set!"); 570 if (E.IsUserSupplied) { 571 switch (E.Group) { 572 case frontend::After: 573 Res.push_back("-idirafter"); 574 break; 575 576 case frontend::Quoted: 577 Res.push_back("-iquote"); 578 break; 579 580 case frontend::System: 581 Res.push_back("-isystem"); 582 break; 583 584 case frontend::IndexHeaderMap: 585 Res.push_back("-index-header-map"); 586 Res.push_back(E.IsFramework? "-F" : "-I"); 587 break; 588 589 case frontend::CSystem: 590 Res.push_back("-c-isystem"); 591 break; 592 593 case frontend::CXXSystem: 594 Res.push_back("-cxx-isystem"); 595 break; 596 597 case frontend::ObjCSystem: 598 Res.push_back("-objc-isystem"); 599 break; 600 601 case frontend::ObjCXXSystem: 602 Res.push_back("-objcxx-isystem"); 603 break; 604 605 case frontend::Angled: 606 Res.push_back(E.IsFramework ? "-F" : "-I"); 607 break; 608 } 609 } else { 610 if (E.IsInternal) { 611 assert(E.Group == frontend::System && "Unexpected header search group"); 612 if (E.ImplicitExternC) 613 Res.push_back("-internal-externc-isystem"); 614 else 615 Res.push_back("-internal-isystem"); 616 } else { 617 if (E.Group != frontend::Angled && E.Group != frontend::System) 618 llvm::report_fatal_error("Invalid option set!"); 619 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" : 620 "-iwithprefix"); 621 } 622 } 623 Res.push_back(E.Path); 624 } 625 626 /// User-specified system header prefixes. 627 for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) { 628 if (Opts.SystemHeaderPrefixes[i].IsSystemHeader) 629 Res.push_back("-isystem-prefix"); 630 else 631 Res.push_back("-ino-system-prefix"); 632 633 Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix); 634 } 635 636 if (!Opts.ResourceDir.empty()) 637 Res.push_back("-resource-dir", Opts.ResourceDir); 638 if (!Opts.ModuleCachePath.empty()) 639 Res.push_back("-fmodule-cache-path", Opts.ModuleCachePath); 640 if (!Opts.UseStandardSystemIncludes) 641 Res.push_back("-nostdsysteminc"); 642 if (!Opts.UseStandardCXXIncludes) 643 Res.push_back("-nostdinc++"); 644 if (Opts.UseLibcxx) 645 Res.push_back("-stdlib=libc++"); 646 if (Opts.Verbose) 647 Res.push_back("-v"); 648 } 649 650 static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) { 651 LangOptions DefaultLangOpts; 652 653 // FIXME: Need to set -std to get all the implicit options. 654 655 // FIXME: We want to only pass options relative to the defaults, which 656 // requires constructing a target. :( 657 // 658 // It would be better to push the all target specific choices into the driver, 659 // so that everything below that was more uniform. 660 661 if (Opts.Trigraphs) 662 Res.push_back("-trigraphs"); 663 // Implicit based on the input kind: 664 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL 665 // Implicit based on the input language standard: 666 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode 667 if (Opts.DollarIdents) 668 Res.push_back("-fdollars-in-identifiers"); 669 if (Opts.GNUMode && !Opts.GNUKeywords) 670 Res.push_back("-fno-gnu-keywords"); 671 if (!Opts.GNUMode && Opts.GNUKeywords) 672 Res.push_back("-fgnu-keywords"); 673 if (Opts.MicrosoftExt) 674 Res.push_back("-fms-extensions"); 675 if (Opts.MicrosoftMode) 676 Res.push_back("-fms-compatibility"); 677 if (Opts.MSCVersion != 0) 678 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion)); 679 if (Opts.Borland) 680 Res.push_back("-fborland-extensions"); 681 if (!Opts.ObjCNonFragileABI) 682 Res.push_back("-fobjc-fragile-abi"); 683 if (Opts.ObjCDefaultSynthProperties) 684 Res.push_back("-fobjc-default-synthesize-properties"); 685 // NoInline is implicit. 686 if (!Opts.CXXOperatorNames) 687 Res.push_back("-fno-operator-names"); 688 if (Opts.PascalStrings) 689 Res.push_back("-fpascal-strings"); 690 if (Opts.CatchUndefined) 691 Res.push_back("-fcatch-undefined-behavior"); 692 if (Opts.AddressSanitizer) 693 Res.push_back("-faddress-sanitizer"); 694 if (Opts.ThreadSanitizer) 695 Res.push_back("-fthread-sanitizer"); 696 if (Opts.WritableStrings) 697 Res.push_back("-fwritable-strings"); 698 if (Opts.ConstStrings) 699 Res.push_back("-fconst-strings"); 700 if (!Opts.LaxVectorConversions) 701 Res.push_back("-fno-lax-vector-conversions"); 702 if (Opts.AltiVec) 703 Res.push_back("-faltivec"); 704 if (Opts.Exceptions) 705 Res.push_back("-fexceptions"); 706 if (Opts.ObjCExceptions) 707 Res.push_back("-fobjc-exceptions"); 708 if (Opts.CXXExceptions) 709 Res.push_back("-fcxx-exceptions"); 710 if (Opts.SjLjExceptions) 711 Res.push_back("-fsjlj-exceptions"); 712 if (Opts.TraditionalCPP) 713 Res.push_back("-traditional-cpp"); 714 if (!Opts.RTTI) 715 Res.push_back("-fno-rtti"); 716 if (Opts.MSBitfields) 717 Res.push_back("-mms-bitfields"); 718 if (!Opts.NeXTRuntime) 719 Res.push_back("-fgnu-runtime"); 720 if (Opts.Freestanding) 721 Res.push_back("-ffreestanding"); 722 if (Opts.NoBuiltin) 723 Res.push_back("-fno-builtin"); 724 if (!Opts.AssumeSaneOperatorNew) 725 Res.push_back("-fno-assume-sane-operator-new"); 726 if (!Opts.ThreadsafeStatics) 727 Res.push_back("-fno-threadsafe-statics"); 728 if (Opts.POSIXThreads) 729 Res.push_back("-pthread"); 730 if (Opts.Blocks) 731 Res.push_back("-fblocks"); 732 if (Opts.BlocksRuntimeOptional) 733 Res.push_back("-fblocks-runtime-optional"); 734 if (Opts.Modules) 735 Res.push_back("-fmodules"); 736 if (Opts.EmitAllDecls) 737 Res.push_back("-femit-all-decls"); 738 if (Opts.MathErrno) 739 Res.push_back("-fmath-errno"); 740 switch (Opts.getSignedOverflowBehavior()) { 741 case LangOptions::SOB_Undefined: break; 742 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break; 743 case LangOptions::SOB_Trapping: 744 Res.push_back("-ftrapv"); 745 if (!Opts.OverflowHandler.empty()) 746 Res.push_back("-ftrapv-handler", Opts.OverflowHandler); 747 break; 748 } 749 if (Opts.HeinousExtensions) 750 Res.push_back("-fheinous-gnu-extensions"); 751 // Optimize is implicit. 752 // OptimizeSize is implicit. 753 if (Opts.FastMath) 754 Res.push_back("-ffast-math"); 755 if (Opts.Static) 756 Res.push_back("-static-define"); 757 if (Opts.DumpRecordLayoutsSimple) 758 Res.push_back("-fdump-record-layouts-simple"); 759 else if (Opts.DumpRecordLayouts) 760 Res.push_back("-fdump-record-layouts"); 761 if (Opts.DumpVTableLayouts) 762 Res.push_back("-fdump-vtable-layouts"); 763 if (Opts.NoBitFieldTypeAlign) 764 Res.push_back("-fno-bitfield-type-alignment"); 765 if (Opts.PICLevel) 766 Res.push_back("-pic-level", llvm::utostr(Opts.PICLevel)); 767 if (Opts.PIELevel) 768 Res.push_back("-pie-level", llvm::utostr(Opts.PIELevel)); 769 if (Opts.ObjCGCBitmapPrint) 770 Res.push_back("-print-ivar-layout"); 771 if (Opts.NoConstantCFStrings) 772 Res.push_back("-fno-constant-cfstrings"); 773 if (!Opts.AccessControl) 774 Res.push_back("-fno-access-control"); 775 if (!Opts.CharIsSigned) 776 Res.push_back("-fno-signed-char"); 777 if (Opts.ShortWChar) 778 Res.push_back("-fshort-wchar"); 779 if (!Opts.ElideConstructors) 780 Res.push_back("-fno-elide-constructors"); 781 if (Opts.getGC() != LangOptions::NonGC) { 782 if (Opts.getGC() == LangOptions::HybridGC) { 783 Res.push_back("-fobjc-gc"); 784 } else { 785 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!"); 786 Res.push_back("-fobjc-gc-only"); 787 } 788 } 789 if (Opts.ObjCAutoRefCount) 790 Res.push_back("-fobjc-arc"); 791 if (Opts.ObjCRuntimeHasWeak) 792 Res.push_back("-fobjc-runtime-has-weak"); 793 if (!Opts.ObjCInferRelatedResultType) 794 Res.push_back("-fno-objc-infer-related-result-type"); 795 796 if (Opts.AppleKext) 797 Res.push_back("-fapple-kext"); 798 799 if (Opts.getVisibilityMode() != DefaultVisibility) { 800 Res.push_back("-fvisibility"); 801 if (Opts.getVisibilityMode() == HiddenVisibility) { 802 Res.push_back("hidden"); 803 } else { 804 assert(Opts.getVisibilityMode() == ProtectedVisibility && 805 "Invalid visibility!"); 806 Res.push_back("protected"); 807 } 808 } 809 if (Opts.InlineVisibilityHidden) 810 Res.push_back("-fvisibility-inlines-hidden"); 811 812 if (Opts.getStackProtector() != 0) 813 Res.push_back("-stack-protector", llvm::utostr(Opts.getStackProtector())); 814 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) 815 Res.push_back("-ftemplate-depth", llvm::utostr(Opts.InstantiationDepth)); 816 if (Opts.ConstexprCallDepth != DefaultLangOpts.ConstexprCallDepth) 817 Res.push_back("-fconstexpr-depth", llvm::utostr(Opts.ConstexprCallDepth)); 818 if (!Opts.ObjCConstantStringClass.empty()) 819 Res.push_back("-fconstant-string-class", Opts.ObjCConstantStringClass); 820 if (Opts.FakeAddressSpaceMap) 821 Res.push_back("-ffake-address-space-map"); 822 if (Opts.ParseUnknownAnytype) 823 Res.push_back("-funknown-anytype"); 824 if (Opts.DebuggerSupport) 825 Res.push_back("-fdebugger-support"); 826 if (Opts.DebuggerCastResultToId) 827 Res.push_back("-fdebugger-cast-result-to-id"); 828 if (Opts.DebuggerObjCLiteral) 829 Res.push_back("-fdebugger-objc-literal"); 830 if (Opts.DelayedTemplateParsing) 831 Res.push_back("-fdelayed-template-parsing"); 832 if (Opts.Deprecated) 833 Res.push_back("-fdeprecated-macro"); 834 if (Opts.ApplePragmaPack) 835 Res.push_back("-fapple-pragma-pack"); 836 if (!Opts.CurrentModule.empty()) 837 Res.push_back("-fmodule-name=" + Opts.CurrentModule); 838 } 839 840 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts, 841 ToArgsList &Res) { 842 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i) 843 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") + 844 Opts.Macros[i].first); 845 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) { 846 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes. 847 Res.push_back("-include", Opts.Includes[i]); 848 } 849 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) 850 Res.push_back("-imacros", Opts.MacroIncludes[i]); 851 if (!Opts.UsePredefines) 852 Res.push_back("-undef"); 853 if (Opts.DetailedRecord) 854 Res.push_back("-detailed-preprocessing-record"); 855 if (!Opts.ImplicitPCHInclude.empty()) 856 Res.push_back("-include-pch", Opts.ImplicitPCHInclude); 857 if (!Opts.ImplicitPTHInclude.empty()) 858 Res.push_back("-include-pth", Opts.ImplicitPTHInclude); 859 if (!Opts.TokenCache.empty()) { 860 if (Opts.ImplicitPTHInclude.empty()) 861 Res.push_back("-token-cache", Opts.TokenCache); 862 else 863 assert(Opts.ImplicitPTHInclude == Opts.TokenCache && 864 "Unsupported option combination!"); 865 } 866 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i) 867 Res.push_back("-chain-include", Opts.ChainedIncludes[i]); 868 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) { 869 Res.push_back("-remap-file", Opts.RemappedFiles[i].first + ";" + 870 Opts.RemappedFiles[i].second); 871 } 872 } 873 874 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts, 875 ToArgsList &Res) { 876 if (!Opts.ShowCPP && !Opts.ShowMacros) 877 llvm::report_fatal_error("Invalid option combination!"); 878 879 if (Opts.ShowCPP && Opts.ShowMacros) 880 Res.push_back("-dD"); 881 else if (!Opts.ShowCPP && Opts.ShowMacros) 882 Res.push_back("-dM"); 883 884 if (!Opts.ShowLineMarkers) 885 Res.push_back("-P"); 886 if (Opts.ShowComments) 887 Res.push_back("-C"); 888 if (Opts.ShowMacroComments) 889 Res.push_back("-CC"); 890 } 891 892 static void TargetOptsToArgs(const TargetOptions &Opts, 893 ToArgsList &Res) { 894 Res.push_back("-triple"); 895 Res.push_back(Opts.Triple); 896 if (!Opts.CPU.empty()) 897 Res.push_back("-target-cpu", Opts.CPU); 898 if (!Opts.ABI.empty()) 899 Res.push_back("-target-abi", Opts.ABI); 900 if (!Opts.LinkerVersion.empty()) 901 Res.push_back("-target-linker-version", Opts.LinkerVersion); 902 if (!Opts.CXXABI.empty()) 903 Res.push_back("-cxx-abi", Opts.CXXABI); 904 for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) 905 Res.push_back("-target-feature", Opts.Features[i]); 906 } 907 908 void CompilerInvocation::toArgs(std::vector<std::string> &Res) const { 909 ToArgsList List(Res); 910 AnalyzerOptsToArgs(getAnalyzerOpts(), List); 911 CodeGenOptsToArgs(getCodeGenOpts(), List); 912 DependencyOutputOptsToArgs(getDependencyOutputOpts(), List); 913 DiagnosticOptsToArgs(getDiagnosticOpts(), List); 914 FileSystemOptsToArgs(getFileSystemOpts(), List); 915 FrontendOptsToArgs(getFrontendOpts(), List); 916 HeaderSearchOptsToArgs(getHeaderSearchOpts(), List); 917 LangOptsToArgs(*getLangOpts(), List); 918 PreprocessorOptsToArgs(getPreprocessorOpts(), List); 919 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), List); 920 TargetOptsToArgs(getTargetOpts(), List); 921 } 922 923 //===----------------------------------------------------------------------===// 924 // Deserialization (to args) 925 //===----------------------------------------------------------------------===// 926 927 using namespace clang::driver; 928 using namespace clang::driver::options; 929 930 // 931 932 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 933 DiagnosticsEngine &Diags) { 934 unsigned DefaultOpt = 0; 935 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 936 DefaultOpt = 2; 937 938 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 939 if (A->getOption().matches(options::OPT_O0)) 940 return 0; 941 942 assert (A->getOption().matches(options::OPT_O)); 943 944 llvm::StringRef S(A->getValue(Args)); 945 if (S == "s" || S == "z" || S.empty()) 946 return 2; 947 948 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 949 } 950 951 return DefaultOpt; 952 } 953 954 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 955 DiagnosticsEngine &Diags) { 956 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 957 if (A->getOption().matches(options::OPT_O)) { 958 switch (A->getValue(Args)[0]) { 959 default: 960 return 0; 961 case 's': 962 return 1; 963 case 'z': 964 return 2; 965 } 966 } 967 } 968 return 0; 969 } 970 971 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 972 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 973 E = Args.filtered_end(); I != E; ++I) { 974 Arg *A = *I; 975 // If the argument is a pure flag, add its name (minus the "-W" at the beginning) 976 // to the warning list. Else, add its value (for the OPT_W case). 977 if (A->getOption().getKind() == Option::FlagClass) { 978 Warnings.push_back(A->getOption().getName().substr(2)); 979 } else { 980 for (unsigned Idx = 0, End = A->getNumValues(); 981 Idx < End; ++Idx) { 982 StringRef V = A->getValue(Args, Idx); 983 // "-Wl," and such are not warning options. 984 // FIXME: Should be handled by putting these in separate flags. 985 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 986 continue; 987 988 Warnings.push_back(V); 989 } 990 } 991 } 992 } 993 994 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 995 DiagnosticsEngine &Diags) { 996 using namespace options; 997 bool Success = true; 998 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 999 StringRef Name = A->getValue(Args); 1000 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 1001 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 1002 .Case(CMDFLAG, NAME##Model) 1003 #include "clang/Frontend/Analyses.def" 1004 .Default(NumStores); 1005 if (Value == NumStores) { 1006 Diags.Report(diag::err_drv_invalid_value) 1007 << A->getAsString(Args) << Name; 1008 Success = false; 1009 } else { 1010 Opts.AnalysisStoreOpt = Value; 1011 } 1012 } 1013 1014 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1015 StringRef Name = A->getValue(Args); 1016 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1017 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1018 .Case(CMDFLAG, NAME##Model) 1019 #include "clang/Frontend/Analyses.def" 1020 .Default(NumConstraints); 1021 if (Value == NumConstraints) { 1022 Diags.Report(diag::err_drv_invalid_value) 1023 << A->getAsString(Args) << Name; 1024 Success = false; 1025 } else { 1026 Opts.AnalysisConstraintsOpt = Value; 1027 } 1028 } 1029 1030 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1031 StringRef Name = A->getValue(Args); 1032 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1033 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 1034 .Case(CMDFLAG, PD_##NAME) 1035 #include "clang/Frontend/Analyses.def" 1036 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1037 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1038 Diags.Report(diag::err_drv_invalid_value) 1039 << A->getAsString(Args) << Name; 1040 Success = false; 1041 } else { 1042 Opts.AnalysisDiagOpt = Value; 1043 } 1044 } 1045 1046 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1047 StringRef Name = A->getValue(Args); 1048 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1049 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1050 .Case(CMDFLAG, NAME) 1051 #include "clang/Frontend/Analyses.def" 1052 .Default(NumPurgeModes); 1053 if (Value == NumPurgeModes) { 1054 Diags.Report(diag::err_drv_invalid_value) 1055 << A->getAsString(Args) << Name; 1056 Success = false; 1057 } else { 1058 Opts.AnalysisPurgeOpt = Value; 1059 } 1060 } 1061 1062 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 1063 StringRef Name = A->getValue(Args); 1064 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 1065 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 1066 .Case(CMDFLAG, NAME) 1067 #include "clang/Frontend/Analyses.def" 1068 .Default(NumIPAModes); 1069 if (Value == NumIPAModes) { 1070 Diags.Report(diag::err_drv_invalid_value) 1071 << A->getAsString(Args) << Name; 1072 Success = false; 1073 } else { 1074 Opts.IPAMode = Value; 1075 } 1076 } 1077 1078 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1079 StringRef Name = A->getValue(Args); 1080 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1081 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1082 .Case(CMDFLAG, NAME) 1083 #include "clang/Frontend/Analyses.def" 1084 .Default(NumInliningModes); 1085 if (Value == NumInliningModes) { 1086 Diags.Report(diag::err_drv_invalid_value) 1087 << A->getAsString(Args) << Name; 1088 Success = false; 1089 } else { 1090 Opts.InliningMode = Value; 1091 } 1092 } 1093 1094 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 1095 Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 1096 Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 1097 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 1098 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 1099 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 1100 Opts.AnalyzeNestedBlocks = 1101 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 1102 Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume); 1103 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 1104 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 1105 Opts.CFGAddImplicitDtors = Args.hasArg(OPT_analysis_CFGAddImplicitDtors); 1106 Opts.CFGAddInitializers = Args.hasArg(OPT_analysis_CFGAddInitializers); 1107 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 1108 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 1109 Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 1110 Opts.EagerlyTrimEGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph); 1111 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 1112 Opts.InlineMaxStackDepth = 1113 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 1114 Opts.InlineMaxStackDepth, Diags); 1115 Opts.InlineMaxFunctionSize = 1116 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 1117 Opts.InlineMaxFunctionSize, Diags); 1118 1119 Opts.CheckersControlList.clear(); 1120 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 1121 OPT_analyzer_disable_checker), 1122 ie = Args.filtered_end(); it != ie; ++it) { 1123 const Arg *A = *it; 1124 A->claim(); 1125 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 1126 // We can have a list of comma separated checker names, e.g: 1127 // '-analyzer-checker=cocoa,unix' 1128 StringRef checkerList = A->getValue(Args); 1129 SmallVector<StringRef, 4> checkers; 1130 checkerList.split(checkers, ","); 1131 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 1132 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 1133 } 1134 1135 return Success; 1136 } 1137 1138 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 1139 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 1140 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 1141 return true; 1142 } 1143 1144 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1145 DiagnosticsEngine &Diags) { 1146 using namespace options; 1147 bool Success = true; 1148 1149 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 1150 if (OptLevel > 3) { 1151 Diags.Report(diag::err_drv_invalid_value) 1152 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 1153 OptLevel = 3; 1154 Success = false; 1155 } 1156 Opts.OptimizationLevel = OptLevel; 1157 1158 // We must always run at least the always inlining pass. 1159 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 1160 : CodeGenOptions::OnlyAlwaysInlining; 1161 // -fno-inline-functions overrides OptimizationLevel > 1. 1162 Opts.NoInline = Args.hasArg(OPT_fno_inline); 1163 Opts.Inlining = Args.hasArg(OPT_fno_inline_functions) ? 1164 CodeGenOptions::OnlyAlwaysInlining : Opts.Inlining; 1165 1166 if (Args.hasArg(OPT_gline_tables_only)) { 1167 Opts.DebugInfo = CodeGenOptions::DebugLineTablesOnly; 1168 } else if (Args.hasArg(OPT_g_Flag)) { 1169 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 1170 Opts.DebugInfo = CodeGenOptions::LimitedDebugInfo; 1171 else 1172 Opts.DebugInfo = CodeGenOptions::FullDebugInfo; 1173 } 1174 1175 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 1176 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 1177 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 1178 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 1179 OPT_fuse_register_sized_bitfield_access); 1180 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 1181 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 1182 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 1183 Opts.NoCommon = Args.hasArg(OPT_fno_common); 1184 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 1185 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 1186 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 1187 Args.hasArg(OPT_ffreestanding)); 1188 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 1189 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 1190 1191 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 1192 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 1193 Opts.ObjCRuntimeHasARC = Args.hasArg(OPT_fobjc_runtime_has_arc); 1194 Opts.ObjCRuntimeHasTerminate = Args.hasArg(OPT_fobjc_runtime_has_terminate); 1195 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 1196 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 1197 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 1198 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 1199 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 1200 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 1201 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 1202 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 1203 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 1204 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 1205 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 1206 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 1207 Args.hasArg(OPT_cl_finite_math_only)|| 1208 Args.hasArg(OPT_cl_fast_relaxed_math)); 1209 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 1210 Args.hasArg(OPT_cl_finite_math_only)|| 1211 Args.hasArg(OPT_cl_fast_relaxed_math)); 1212 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 1213 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 1214 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 1215 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 1216 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 1217 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 1218 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 1219 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 1220 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 1221 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 1222 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 1223 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 1224 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1225 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1226 Args.hasArg(OPT_cl_fast_relaxed_math); 1227 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 1228 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 1229 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 1230 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 1231 Diags); 1232 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 1233 1234 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1235 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 1236 1237 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 1238 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1239 1240 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1241 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1242 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1243 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1244 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 1245 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 1246 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 1247 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1248 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1249 StringRef Val = A->getValue(Args); 1250 Val.getAsInteger(10, Opts.StackAlignment); 1251 } 1252 1253 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1254 StringRef Name = A->getValue(Args); 1255 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1256 .Case("legacy", CodeGenOptions::Legacy) 1257 .Case("non-legacy", CodeGenOptions::NonLegacy) 1258 .Case("mixed", CodeGenOptions::Mixed) 1259 .Default(~0U); 1260 if (Method == ~0U) { 1261 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1262 Success = false; 1263 } else { 1264 Opts.ObjCDispatchMethod = Method; 1265 } 1266 } 1267 1268 return Success; 1269 } 1270 1271 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1272 ArgList &Args) { 1273 using namespace options; 1274 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 1275 Opts.Targets = Args.getAllArgValues(OPT_MT); 1276 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1277 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1278 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1279 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 1280 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1281 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 1282 } 1283 1284 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1285 DiagnosticsEngine *Diags) { 1286 using namespace options; 1287 bool Success = true; 1288 1289 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 1290 Opts.DiagnosticSerializationFile = 1291 Args.getLastArgValue(OPT_diagnostic_serialized_file); 1292 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1293 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1294 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1295 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1296 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1297 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 1298 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 1299 OPT_fno_show_column, 1300 /*Default=*/true); 1301 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1302 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1303 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 1304 1305 // Default behavior is to not to show note include stacks. 1306 Opts.ShowNoteIncludeStack = false; 1307 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1308 OPT_fno_diagnostics_show_note_include_stack)) 1309 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1310 Opts.ShowNoteIncludeStack = true; 1311 1312 StringRef ShowOverloads = 1313 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1314 if (ShowOverloads == "best") 1315 Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best; 1316 else if (ShowOverloads == "all") 1317 Opts.ShowOverloads = DiagnosticsEngine::Ovl_All; 1318 else { 1319 Success = false; 1320 if (Diags) 1321 Diags->Report(diag::err_drv_invalid_value) 1322 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1323 << ShowOverloads; 1324 } 1325 1326 StringRef ShowCategory = 1327 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1328 if (ShowCategory == "none") 1329 Opts.ShowCategories = 0; 1330 else if (ShowCategory == "id") 1331 Opts.ShowCategories = 1; 1332 else if (ShowCategory == "name") 1333 Opts.ShowCategories = 2; 1334 else { 1335 Success = false; 1336 if (Diags) 1337 Diags->Report(diag::err_drv_invalid_value) 1338 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1339 << ShowCategory; 1340 } 1341 1342 StringRef Format = 1343 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1344 if (Format == "clang") 1345 Opts.Format = DiagnosticOptions::Clang; 1346 else if (Format == "msvc") 1347 Opts.Format = DiagnosticOptions::Msvc; 1348 else if (Format == "vi") 1349 Opts.Format = DiagnosticOptions::Vi; 1350 else { 1351 Success = false; 1352 if (Diags) 1353 Diags->Report(diag::err_drv_invalid_value) 1354 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1355 << Format; 1356 } 1357 1358 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1359 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1360 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1361 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 1362 Opts.MacroBacktraceLimit 1363 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 1364 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1365 Opts.TemplateBacktraceLimit 1366 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 1367 DiagnosticOptions::DefaultTemplateBacktraceLimit, 1368 Diags); 1369 Opts.ConstexprBacktraceLimit 1370 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 1371 DiagnosticOptions::DefaultConstexprBacktraceLimit, 1372 Diags); 1373 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 1374 DiagnosticOptions::DefaultTabStop, Diags); 1375 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1376 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1377 if (Diags) 1378 Diags->Report(diag::warn_ignoring_ftabstop_value) 1379 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1380 } 1381 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 1382 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 1383 addWarningArgs(Args, Opts.Warnings); 1384 1385 return Success; 1386 } 1387 1388 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1389 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1390 } 1391 1392 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1393 DiagnosticsEngine &Diags) { 1394 using namespace options; 1395 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1396 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1397 switch (A->getOption().getID()) { 1398 default: 1399 llvm_unreachable("Invalid option in group!"); 1400 case OPT_ast_dump: 1401 Opts.ProgramAction = frontend::ASTDump; break; 1402 case OPT_ast_dump_xml: 1403 Opts.ProgramAction = frontend::ASTDumpXML; break; 1404 case OPT_ast_print: 1405 Opts.ProgramAction = frontend::ASTPrint; break; 1406 case OPT_ast_view: 1407 Opts.ProgramAction = frontend::ASTView; break; 1408 case OPT_dump_raw_tokens: 1409 Opts.ProgramAction = frontend::DumpRawTokens; break; 1410 case OPT_dump_tokens: 1411 Opts.ProgramAction = frontend::DumpTokens; break; 1412 case OPT_S: 1413 Opts.ProgramAction = frontend::EmitAssembly; break; 1414 case OPT_emit_llvm_bc: 1415 Opts.ProgramAction = frontend::EmitBC; break; 1416 case OPT_emit_html: 1417 Opts.ProgramAction = frontend::EmitHTML; break; 1418 case OPT_emit_llvm: 1419 Opts.ProgramAction = frontend::EmitLLVM; break; 1420 case OPT_emit_llvm_only: 1421 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1422 case OPT_emit_codegen_only: 1423 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1424 case OPT_emit_obj: 1425 Opts.ProgramAction = frontend::EmitObj; break; 1426 case OPT_fixit_EQ: 1427 Opts.FixItSuffix = A->getValue(Args); 1428 // fall-through! 1429 case OPT_fixit: 1430 Opts.ProgramAction = frontend::FixIt; break; 1431 case OPT_emit_module: 1432 Opts.ProgramAction = frontend::GenerateModule; break; 1433 case OPT_emit_pch: 1434 Opts.ProgramAction = frontend::GeneratePCH; break; 1435 case OPT_emit_pth: 1436 Opts.ProgramAction = frontend::GeneratePTH; break; 1437 case OPT_init_only: 1438 Opts.ProgramAction = frontend::InitOnly; break; 1439 case OPT_fsyntax_only: 1440 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1441 case OPT_print_decl_contexts: 1442 Opts.ProgramAction = frontend::PrintDeclContext; break; 1443 case OPT_print_preamble: 1444 Opts.ProgramAction = frontend::PrintPreamble; break; 1445 case OPT_E: 1446 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1447 case OPT_rewrite_macros: 1448 Opts.ProgramAction = frontend::RewriteMacros; break; 1449 case OPT_rewrite_objc: 1450 Opts.ProgramAction = frontend::RewriteObjC; break; 1451 case OPT_rewrite_test: 1452 Opts.ProgramAction = frontend::RewriteTest; break; 1453 case OPT_analyze: 1454 Opts.ProgramAction = frontend::RunAnalysis; break; 1455 case OPT_migrate: 1456 Opts.ProgramAction = frontend::MigrateSource; break; 1457 case OPT_Eonly: 1458 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1459 } 1460 } 1461 1462 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1463 Opts.Plugins.push_back(A->getValue(Args,0)); 1464 Opts.ProgramAction = frontend::PluginAction; 1465 Opts.ActionName = A->getValue(Args); 1466 1467 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1468 end = Args.filtered_end(); it != end; ++it) { 1469 if ((*it)->getValue(Args, 0) == Opts.ActionName) 1470 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 1471 } 1472 } 1473 1474 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1475 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 1476 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 1477 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 1478 end = Args.filtered_end(); it != end; ++it) { 1479 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 1480 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 1481 } 1482 } 1483 1484 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1485 Opts.CodeCompletionAt = 1486 ParsedSourceLocation::FromString(A->getValue(Args)); 1487 if (Opts.CodeCompletionAt.FileName.empty()) 1488 Diags.Report(diag::err_drv_invalid_value) 1489 << A->getAsString(Args) << A->getValue(Args); 1490 } 1491 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1492 1493 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1494 Opts.Plugins = Args.getAllArgValues(OPT_load); 1495 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1496 Opts.ShowHelp = Args.hasArg(OPT_help); 1497 Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros); 1498 Opts.ShowCodePatternsInCodeCompletion 1499 = Args.hasArg(OPT_code_completion_patterns); 1500 Opts.ShowGlobalSymbolsInCodeCompletion 1501 = !Args.hasArg(OPT_no_code_completion_globals); 1502 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1503 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1504 Opts.ShowVersion = Args.hasArg(OPT_version); 1505 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1506 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1507 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1508 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1509 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1510 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1511 Opts.OverrideRecordLayoutsFile 1512 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1513 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1514 OPT_arcmt_modify, 1515 OPT_arcmt_migrate)) { 1516 switch (A->getOption().getID()) { 1517 default: 1518 llvm_unreachable("missed a case"); 1519 case OPT_arcmt_check: 1520 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1521 break; 1522 case OPT_arcmt_modify: 1523 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1524 break; 1525 case OPT_arcmt_migrate: 1526 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1527 break; 1528 } 1529 } 1530 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1531 Opts.ARCMTMigrateReportOut 1532 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1533 Opts.ARCMTMigrateEmitARCErrors 1534 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1535 1536 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1537 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1538 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1539 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1540 1541 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1542 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1543 Diags.Report(diag::err_drv_argument_not_allowed_with) 1544 << "ARC migration" << "ObjC migration"; 1545 } 1546 1547 InputKind DashX = IK_None; 1548 if (const Arg *A = Args.getLastArg(OPT_x)) { 1549 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 1550 .Case("c", IK_C) 1551 .Case("cl", IK_OpenCL) 1552 .Case("cuda", IK_CUDA) 1553 .Case("c++", IK_CXX) 1554 .Case("objective-c", IK_ObjC) 1555 .Case("objective-c++", IK_ObjCXX) 1556 .Case("cpp-output", IK_PreprocessedC) 1557 .Case("assembler-with-cpp", IK_Asm) 1558 .Case("c++-cpp-output", IK_PreprocessedCXX) 1559 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1560 .Case("objc-cpp-output", IK_PreprocessedObjC) 1561 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1562 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1563 .Case("c-header", IK_C) 1564 .Case("cl-header", IK_OpenCL) 1565 .Case("objective-c-header", IK_ObjC) 1566 .Case("c++-header", IK_CXX) 1567 .Case("objective-c++-header", IK_ObjCXX) 1568 .Case("ast", IK_AST) 1569 .Case("ir", IK_LLVM_IR) 1570 .Default(IK_None); 1571 if (DashX == IK_None) 1572 Diags.Report(diag::err_drv_invalid_value) 1573 << A->getAsString(Args) << A->getValue(Args); 1574 } 1575 1576 // '-' is the default input if none is given. 1577 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1578 Opts.Inputs.clear(); 1579 if (Inputs.empty()) 1580 Inputs.push_back("-"); 1581 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1582 InputKind IK = DashX; 1583 if (IK == IK_None) { 1584 IK = FrontendOptions::getInputKindForExtension( 1585 StringRef(Inputs[i]).rsplit('.').second); 1586 // FIXME: Remove this hack. 1587 if (i == 0) 1588 DashX = IK; 1589 } 1590 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1591 } 1592 1593 return DashX; 1594 } 1595 1596 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1597 void *MainAddr) { 1598 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 1599 1600 if (!P.isEmpty()) { 1601 P.eraseComponent(); // Remove /clang from foo/bin/clang 1602 P.eraseComponent(); // Remove /bin from foo/bin 1603 1604 // Get foo/lib/clang/<version>/include 1605 P.appendComponent("lib"); 1606 P.appendComponent("clang"); 1607 P.appendComponent(CLANG_VERSION_STRING); 1608 } 1609 1610 return P.str(); 1611 } 1612 1613 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1614 using namespace options; 1615 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1616 Opts.Verbose = Args.hasArg(OPT_v); 1617 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1618 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1619 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1620 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1621 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 1622 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1623 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 1624 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1625 1626 // Add -I..., -F..., and -index-header-map options in order. 1627 bool IsIndexHeaderMap = false; 1628 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1629 OPT_index_header_map), 1630 ie = Args.filtered_end(); it != ie; ++it) { 1631 if ((*it)->getOption().matches(OPT_index_header_map)) { 1632 // -index-header-map applies to the next -I or -F. 1633 IsIndexHeaderMap = true; 1634 continue; 1635 } 1636 1637 frontend::IncludeDirGroup Group 1638 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1639 1640 Opts.AddPath((*it)->getValue(Args), Group, true, 1641 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 1642 IsIndexHeaderMap = false; 1643 } 1644 1645 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 1646 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1647 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1648 OPT_iwithprefixbefore), 1649 ie = Args.filtered_end(); it != ie; ++it) { 1650 const Arg *A = *it; 1651 if (A->getOption().matches(OPT_iprefix)) 1652 Prefix = A->getValue(Args); 1653 else if (A->getOption().matches(OPT_iwithprefix)) 1654 Opts.AddPath(Prefix.str() + A->getValue(Args), 1655 frontend::System, false, false, false); 1656 else 1657 Opts.AddPath(Prefix.str() + A->getValue(Args), 1658 frontend::Angled, false, false, false); 1659 } 1660 1661 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1662 ie = Args.filtered_end(); it != ie; ++it) 1663 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 1664 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1665 ie = Args.filtered_end(); it != ie; ++it) 1666 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 1667 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1668 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1669 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 1670 !(*it)->getOption().matches(OPT_iwithsysroot)); 1671 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1672 ie = Args.filtered_end(); it != ie; ++it) 1673 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true, 1674 true); 1675 1676 // Add the paths for the various language specific isystem flags. 1677 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1678 ie = Args.filtered_end(); it != ie; ++it) 1679 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 1680 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1681 ie = Args.filtered_end(); it != ie; ++it) 1682 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 1683 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1684 ie = Args.filtered_end(); it != ie; ++it) 1685 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 1686 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1687 ie = Args.filtered_end(); it != ie; ++it) 1688 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 1689 true); 1690 1691 // Add the internal paths from a driver that detects standard include paths. 1692 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1693 OPT_internal_externc_isystem), 1694 E = Args.filtered_end(); 1695 I != E; ++I) 1696 Opts.AddPath((*I)->getValue(Args), frontend::System, 1697 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 1698 (*I)->getOption().matches(OPT_internal_externc_isystem)); 1699 1700 // Add the path prefixes which are implicitly treated as being system headers. 1701 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 1702 OPT_ino_system_prefix), 1703 E = Args.filtered_end(); 1704 I != E; ++I) 1705 Opts.AddSystemHeaderPrefix((*I)->getValue(Args), 1706 (*I)->getOption().matches(OPT_isystem_prefix)); 1707 } 1708 1709 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1710 LangStandard::Kind LangStd) { 1711 // Set some properties which depend solely on the input kind; it would be nice 1712 // to move these to the language standard, and have the driver resolve the 1713 // input kind + language standard. 1714 if (IK == IK_Asm) { 1715 Opts.AsmPreprocessor = 1; 1716 } else if (IK == IK_ObjC || 1717 IK == IK_ObjCXX || 1718 IK == IK_PreprocessedObjC || 1719 IK == IK_PreprocessedObjCXX) { 1720 Opts.ObjC1 = Opts.ObjC2 = 1; 1721 } 1722 1723 if (LangStd == LangStandard::lang_unspecified) { 1724 // Based on the base language, pick one. 1725 switch (IK) { 1726 case IK_None: 1727 case IK_AST: 1728 case IK_LLVM_IR: 1729 llvm_unreachable("Invalid input kind!"); 1730 case IK_OpenCL: 1731 LangStd = LangStandard::lang_opencl; 1732 break; 1733 case IK_CUDA: 1734 LangStd = LangStandard::lang_cuda; 1735 break; 1736 case IK_Asm: 1737 case IK_C: 1738 case IK_PreprocessedC: 1739 case IK_ObjC: 1740 case IK_PreprocessedObjC: 1741 LangStd = LangStandard::lang_gnu99; 1742 break; 1743 case IK_CXX: 1744 case IK_PreprocessedCXX: 1745 case IK_ObjCXX: 1746 case IK_PreprocessedObjCXX: 1747 LangStd = LangStandard::lang_gnucxx98; 1748 break; 1749 } 1750 } 1751 1752 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1753 Opts.BCPLComment = Std.hasBCPLComments(); 1754 Opts.C99 = Std.isC99(); 1755 Opts.C11 = Std.isC11(); 1756 Opts.CPlusPlus = Std.isCPlusPlus(); 1757 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 1758 Opts.Digraphs = Std.hasDigraphs(); 1759 Opts.GNUMode = Std.isGNUMode(); 1760 Opts.GNUInline = !Std.isC99(); 1761 Opts.HexFloats = Std.hasHexFloats(); 1762 Opts.ImplicitInt = Std.hasImplicitInt(); 1763 1764 // Set OpenCL Version. 1765 if (LangStd == LangStandard::lang_opencl) { 1766 Opts.OpenCL = 1; 1767 Opts.OpenCLVersion = 100; 1768 } 1769 else if (LangStd == LangStandard::lang_opencl11) { 1770 Opts.OpenCL = 1; 1771 Opts.OpenCLVersion = 110; 1772 } 1773 else if (LangStd == LangStandard::lang_opencl12) { 1774 Opts.OpenCL = 1; 1775 Opts.OpenCLVersion = 120; 1776 } 1777 1778 // OpenCL has some additional defaults. 1779 if (Opts.OpenCL) { 1780 Opts.AltiVec = 0; 1781 Opts.CXXOperatorNames = 1; 1782 Opts.LaxVectorConversions = 0; 1783 Opts.DefaultFPContract = 1; 1784 } 1785 1786 if (LangStd == LangStandard::lang_cuda) 1787 Opts.CUDA = 1; 1788 1789 // OpenCL and C++ both have bool, true, false keywords. 1790 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1791 1792 Opts.GNUKeywords = Opts.GNUMode; 1793 Opts.CXXOperatorNames = Opts.CPlusPlus; 1794 1795 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1796 // is specified, or -std is set to a conforming mode. 1797 Opts.Trigraphs = !Opts.GNUMode; 1798 1799 Opts.DollarIdents = !Opts.AsmPreprocessor; 1800 } 1801 1802 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1803 DiagnosticsEngine &Diags) { 1804 // FIXME: Cleanup per-file based stuff. 1805 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1806 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1807 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1808 #define LANGSTANDARD(id, name, desc, features) \ 1809 .Case(name, LangStandard::lang_##id) 1810 #include "clang/Frontend/LangStandards.def" 1811 .Default(LangStandard::lang_unspecified); 1812 if (LangStd == LangStandard::lang_unspecified) 1813 Diags.Report(diag::err_drv_invalid_value) 1814 << A->getAsString(Args) << A->getValue(Args); 1815 else { 1816 // Valid standard, check to make sure language and standard are compatable. 1817 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1818 switch (IK) { 1819 case IK_C: 1820 case IK_ObjC: 1821 case IK_PreprocessedC: 1822 case IK_PreprocessedObjC: 1823 if (!(Std.isC89() || Std.isC99())) 1824 Diags.Report(diag::err_drv_argument_not_allowed_with) 1825 << A->getAsString(Args) << "C/ObjC"; 1826 break; 1827 case IK_CXX: 1828 case IK_ObjCXX: 1829 case IK_PreprocessedCXX: 1830 case IK_PreprocessedObjCXX: 1831 if (!Std.isCPlusPlus()) 1832 Diags.Report(diag::err_drv_argument_not_allowed_with) 1833 << A->getAsString(Args) << "C++/ObjC++"; 1834 break; 1835 case IK_OpenCL: 1836 if (!Std.isC99()) 1837 Diags.Report(diag::err_drv_argument_not_allowed_with) 1838 << A->getAsString(Args) << "OpenCL"; 1839 break; 1840 case IK_CUDA: 1841 if (!Std.isCPlusPlus()) 1842 Diags.Report(diag::err_drv_argument_not_allowed_with) 1843 << A->getAsString(Args) << "CUDA"; 1844 break; 1845 default: 1846 break; 1847 } 1848 } 1849 } 1850 1851 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1852 if (strcmp(A->getValue(Args), "CL1.1") != 0) { 1853 Diags.Report(diag::err_drv_invalid_value) 1854 << A->getAsString(Args) << A->getValue(Args); 1855 } 1856 } 1857 1858 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1859 1860 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1861 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1862 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1863 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1864 // name, as it doesn't seem a useful distinction. 1865 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1866 Opts.GNUKeywords); 1867 1868 if (Args.hasArg(OPT_fno_operator_names)) 1869 Opts.CXXOperatorNames = 0; 1870 1871 if (Opts.ObjC1) { 1872 if (Args.hasArg(OPT_fobjc_gc_only)) 1873 Opts.setGC(LangOptions::GCOnly); 1874 else if (Args.hasArg(OPT_fobjc_gc)) 1875 Opts.setGC(LangOptions::HybridGC); 1876 else if (Args.hasArg(OPT_fobjc_arc)) { 1877 Opts.ObjCAutoRefCount = 1; 1878 if (Args.hasArg(OPT_fobjc_fragile_abi)) 1879 Diags.Report(diag::err_arc_nonfragile_abi); 1880 } 1881 1882 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1883 Opts.ObjCRuntimeHasWeak = 1; 1884 1885 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1886 Opts.ObjCInferRelatedResultType = 0; 1887 } 1888 1889 if (Args.hasArg(OPT_fgnu89_inline)) 1890 Opts.GNUInline = 1; 1891 1892 if (Args.hasArg(OPT_fapple_kext)) { 1893 if (!Opts.CPlusPlus) 1894 Diags.Report(diag::warn_c_kext); 1895 else 1896 Opts.AppleKext = 1; 1897 } 1898 1899 if (Args.hasArg(OPT_print_ivar_layout)) 1900 Opts.ObjCGCBitmapPrint = 1; 1901 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1902 Opts.NoConstantCFStrings = 1; 1903 1904 if (Args.hasArg(OPT_faltivec)) 1905 Opts.AltiVec = 1; 1906 1907 if (Args.hasArg(OPT_pthread)) 1908 Opts.POSIXThreads = 1; 1909 1910 if (Args.hasArg(OPT_fdelayed_template_parsing)) 1911 Opts.DelayedTemplateParsing = 1; 1912 1913 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1914 if (Vis == "default") 1915 Opts.setVisibilityMode(DefaultVisibility); 1916 else if (Vis == "hidden") 1917 Opts.setVisibilityMode(HiddenVisibility); 1918 else if (Vis == "protected") 1919 // FIXME: diagnose if target does not support protected visibility 1920 Opts.setVisibilityMode(ProtectedVisibility); 1921 else 1922 Diags.Report(diag::err_drv_invalid_value) 1923 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1924 1925 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1926 Opts.InlineVisibilityHidden = 1; 1927 1928 if (Args.hasArg(OPT_ftrapv)) { 1929 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1930 // Set the handler, if one is specified. 1931 Opts.OverflowHandler = 1932 Args.getLastArgValue(OPT_ftrapv_handler); 1933 } 1934 else if (Args.hasArg(OPT_fwrapv)) 1935 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1936 1937 if (Args.hasArg(OPT_trigraphs)) 1938 Opts.Trigraphs = 1; 1939 1940 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1941 OPT_fno_dollars_in_identifiers, 1942 Opts.DollarIdents); 1943 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1944 Opts.MicrosoftExt 1945 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 1946 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 1947 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 1948 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1949 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1950 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1951 Opts.ConstStrings); 1952 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1953 Opts.LaxVectorConversions = 0; 1954 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1955 Opts.ThreadsafeStatics = 0; 1956 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1957 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1958 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1959 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1960 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1961 1962 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1963 Opts.Blocks = Args.hasArg(OPT_fblocks); 1964 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1965 Opts.Modules = Args.hasArg(OPT_fmodules); 1966 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 1967 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 1968 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1969 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1970 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1971 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1972 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1973 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1974 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1975 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 1976 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024, 1977 Diags); 1978 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 1979 Diags); 1980 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1981 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 1982 0, Diags); 1983 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1984 Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime); 1985 Opts.ObjCConstantStringClass = 1986 Args.getLastArgValue(OPT_fconstant_string_class); 1987 Opts.ObjCNonFragileABI = !Args.hasArg(OPT_fobjc_fragile_abi); 1988 if (Opts.ObjCNonFragileABI) 1989 Opts.ObjCNonFragileABI2 = true; 1990 Opts.ObjCDefaultSynthProperties = 1991 Args.hasArg(OPT_fobjc_default_synthesize_properties); 1992 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 1993 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1994 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 1995 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 1996 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 1997 Opts.Static = Args.hasArg(OPT_static_define); 1998 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1999 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2000 || Args.hasArg(OPT_fdump_record_layouts); 2001 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2002 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2003 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2004 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2005 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2006 Opts.MRTD = Args.hasArg(OPT_mrtd); 2007 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2008 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2009 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2010 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2011 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2012 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2013 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer); 2014 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer); 2015 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2016 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 2017 2018 // Record whether the __DEPRECATED define was requested. 2019 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2020 OPT_fno_deprecated_macro, 2021 Opts.Deprecated); 2022 2023 // FIXME: Eliminate this dependency. 2024 unsigned Opt = getOptimizationLevel(Args, IK, Diags); 2025 Opts.Optimize = Opt != 0; 2026 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 2027 2028 // This is the __NO_INLINE__ define, which just depends on things like the 2029 // optimization level and -fno-inline, not actually whether the backend has 2030 // inlining enabled. 2031 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2032 2033 Opts.FastMath = Args.hasArg(OPT_ffast_math); 2034 2035 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 2036 switch (SSP) { 2037 default: 2038 Diags.Report(diag::err_drv_invalid_value) 2039 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2040 break; 2041 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2042 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2043 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 2044 } 2045 } 2046 2047 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2048 FileManager &FileMgr, 2049 DiagnosticsEngine &Diags) { 2050 using namespace options; 2051 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2052 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2053 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2054 Opts.TokenCache = A->getValue(Args); 2055 else 2056 Opts.TokenCache = Opts.ImplicitPTHInclude; 2057 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2058 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2059 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2060 2061 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2062 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 2063 ie = Args.filtered_end(); it != ie; ++it) { 2064 const Arg *A = *it; 2065 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 2066 } 2067 2068 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2069 StringRef Value(A->getValue(Args)); 2070 size_t Comma = Value.find(','); 2071 unsigned Bytes = 0; 2072 unsigned EndOfLine = 0; 2073 2074 if (Comma == StringRef::npos || 2075 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2076 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2077 Diags.Report(diag::err_drv_preamble_format); 2078 else { 2079 Opts.PrecompiledPreambleBytes.first = Bytes; 2080 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2081 } 2082 } 2083 2084 // Add macros from the command line. 2085 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 2086 ie = Args.filtered_end(); it != ie; ++it) { 2087 if ((*it)->getOption().matches(OPT_D)) 2088 Opts.addMacroDef((*it)->getValue(Args)); 2089 else 2090 Opts.addMacroUndef((*it)->getValue(Args)); 2091 } 2092 2093 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2094 2095 // Add the ordered list of -includes. 2096 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 2097 OPT_include_pth), 2098 ie = Args.filtered_end(); it != ie; ++it) { 2099 const Arg *A = *it; 2100 // PCH is handled specially, we need to extra the original include path. 2101 if (A->getOption().matches(OPT_include_pch)) { 2102 std::string OriginalFile = 2103 ASTReader::getOriginalSourceFile(A->getValue(Args), FileMgr, Diags); 2104 if (OriginalFile.empty()) 2105 continue; 2106 2107 Opts.Includes.push_back(OriginalFile); 2108 } else 2109 Opts.Includes.push_back(A->getValue(Args)); 2110 } 2111 2112 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 2113 ie = Args.filtered_end(); it != ie; ++it) { 2114 const Arg *A = *it; 2115 Opts.ChainedIncludes.push_back(A->getValue(Args)); 2116 } 2117 2118 // Include 'altivec.h' if -faltivec option present 2119 if (Args.hasArg(OPT_faltivec)) 2120 Opts.Includes.push_back("altivec.h"); 2121 2122 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 2123 ie = Args.filtered_end(); it != ie; ++it) { 2124 const Arg *A = *it; 2125 std::pair<StringRef,StringRef> Split = 2126 StringRef(A->getValue(Args)).split(';'); 2127 2128 if (Split.second.empty()) { 2129 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2130 continue; 2131 } 2132 2133 Opts.addRemappedFile(Split.first, Split.second); 2134 } 2135 2136 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2137 StringRef Name = A->getValue(Args); 2138 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2139 .Case("libc++", ARCXX_libcxx) 2140 .Case("libstdc++", ARCXX_libstdcxx) 2141 .Case("none", ARCXX_nolib) 2142 .Default(~0U); 2143 if (Library == ~0U) 2144 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2145 else 2146 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2147 } 2148 } 2149 2150 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2151 ArgList &Args) { 2152 using namespace options; 2153 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2154 Opts.ShowComments = Args.hasArg(OPT_C); 2155 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2156 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2157 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2158 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2159 } 2160 2161 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 2162 using namespace options; 2163 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2164 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 2165 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2166 Opts.Features = Args.getAllArgValues(OPT_target_feature); 2167 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2168 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2169 2170 // Use the default target triple if unspecified. 2171 if (Opts.Triple.empty()) 2172 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2173 } 2174 2175 // 2176 2177 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2178 const char *const *ArgBegin, 2179 const char *const *ArgEnd, 2180 DiagnosticsEngine &Diags) { 2181 bool Success = true; 2182 2183 // Parse the arguments. 2184 OwningPtr<OptTable> Opts(createDriverOptTable()); 2185 unsigned MissingArgIndex, MissingArgCount; 2186 OwningPtr<InputArgList> Args( 2187 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 2188 2189 // Check for missing argument error. 2190 if (MissingArgCount) { 2191 Diags.Report(diag::err_drv_missing_argument) 2192 << Args->getArgString(MissingArgIndex) << MissingArgCount; 2193 Success = false; 2194 } 2195 2196 // Issue errors on unknown arguments. 2197 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 2198 ie = Args->filtered_end(); it != ie; ++it) { 2199 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 2200 Success = false; 2201 } 2202 2203 // Issue errors on arguments that are not valid for CC1. 2204 for (ArgList::iterator I = Args->begin(), E = Args->end(); 2205 I != E; ++I) { 2206 if (!(*I)->getOption().isCC1Option()) { 2207 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 2208 Success = false; 2209 } 2210 } 2211 2212 Success = ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags) && Success; 2213 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 2214 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 2215 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 2216 && Success; 2217 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 2218 // FIXME: We shouldn't have to pass the DashX option around here 2219 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 2220 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 2221 && Success; 2222 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 2223 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 2224 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 2225 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2226 Res.getLangOpts()->ObjCExceptions = 1; 2227 } 2228 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2229 // PCH file and find the original header name. Remove the need to do that in 2230 // ParsePreprocessorArgs and remove the FileManager 2231 // parameters from the function and the "FileManager.h" #include. 2232 FileManager FileMgr(Res.getFileSystemOpts()); 2233 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 2234 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 2235 ParseTargetArgs(Res.getTargetOpts(), *Args); 2236 2237 return Success; 2238 } 2239 2240 namespace { 2241 2242 class ModuleSignature { 2243 llvm::SmallVector<uint64_t, 16> Data; 2244 unsigned CurBit; 2245 uint64_t CurValue; 2246 2247 public: 2248 ModuleSignature() : CurBit(0), CurValue(0) { } 2249 2250 void add(uint64_t Value, unsigned Bits); 2251 void add(StringRef Value); 2252 void flush(); 2253 2254 llvm::APInt getAsInteger() const; 2255 }; 2256 } 2257 2258 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 2259 CurValue |= Value << CurBit; 2260 if (CurBit + NumBits < 64) { 2261 CurBit += NumBits; 2262 return; 2263 } 2264 2265 // Add the current word. 2266 Data.push_back(CurValue); 2267 2268 if (CurBit) 2269 CurValue = Value >> (64-CurBit); 2270 else 2271 CurValue = 0; 2272 CurBit = (CurBit+NumBits) & 63; 2273 } 2274 2275 void ModuleSignature::flush() { 2276 if (CurBit == 0) 2277 return; 2278 2279 Data.push_back(CurValue); 2280 CurBit = 0; 2281 CurValue = 0; 2282 } 2283 2284 void ModuleSignature::add(StringRef Value) { 2285 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 2286 add(*I, 8); 2287 } 2288 2289 llvm::APInt ModuleSignature::getAsInteger() const { 2290 return llvm::APInt(Data.size() * 64, Data); 2291 } 2292 2293 std::string CompilerInvocation::getModuleHash() const { 2294 ModuleSignature Signature; 2295 2296 // Start the signature with the compiler version. 2297 // FIXME: The full version string can be quite long. Omit it from the 2298 // module hash for now to avoid failures where the path name becomes too 2299 // long. An MD5 or similar checksum would work well here. 2300 // Signature.add(getClangFullRepositoryVersion()); 2301 2302 // Extend the signature with the language options 2303 #define LANGOPT(Name, Bits, Default, Description) \ 2304 Signature.add(LangOpts->Name, Bits); 2305 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2306 Signature.add(static_cast<unsigned>(LangOpts->get##Name()), Bits); 2307 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2308 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2309 #include "clang/Basic/LangOptions.def" 2310 2311 // Extend the signature with the target triple 2312 llvm::Triple T(TargetOpts.Triple); 2313 Signature.add((unsigned)T.getArch(), 5); 2314 Signature.add((unsigned)T.getVendor(), 4); 2315 Signature.add((unsigned)T.getOS(), 5); 2316 Signature.add((unsigned)T.getEnvironment(), 4); 2317 2318 // Extend the signature with preprocessor options. 2319 Signature.add(getPreprocessorOpts().UsePredefines, 1); 2320 Signature.add(getPreprocessorOpts().DetailedRecord, 1); 2321 2322 // Hash the preprocessor defines. 2323 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines. 2324 std::vector<StringRef> MacroDefs; 2325 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 2326 I = getPreprocessorOpts().Macros.begin(), 2327 IEnd = getPreprocessorOpts().Macros.end(); 2328 I != IEnd; ++I) { 2329 if (!I->second) 2330 MacroDefs.push_back(I->first); 2331 } 2332 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end()); 2333 2334 unsigned PPHashResult = 0; 2335 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I) 2336 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult); 2337 Signature.add(PPHashResult, 32); 2338 2339 // We've generated the signature. Treat it as one large APInt that we'll 2340 // encode in base-36 and return. 2341 Signature.flush(); 2342 return Signature.getAsInteger().toString(36, /*Signed=*/false); 2343 } 2344