1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <memory> 97 #include <string> 98 #include <tuple> 99 #include <type_traits> 100 #include <utility> 101 #include <vector> 102 103 using namespace clang; 104 using namespace driver; 105 using namespace options; 106 using namespace llvm::opt; 107 108 //===----------------------------------------------------------------------===// 109 // Initialization. 110 //===----------------------------------------------------------------------===// 111 112 CompilerInvocationBase::CompilerInvocationBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()) {} 117 118 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 119 : LangOpts(new LangOptions(*X.getLangOpts())), 120 TargetOpts(new TargetOptions(X.getTargetOpts())), 121 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 122 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 123 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 124 125 CompilerInvocationBase::~CompilerInvocationBase() = default; 126 127 //===----------------------------------------------------------------------===// 128 // Normalizers 129 //===----------------------------------------------------------------------===// 130 131 #define SIMPLE_ENUM_VALUE_TABLE 132 #include "clang/Driver/Options.inc" 133 #undef SIMPLE_ENUM_VALUE_TABLE 134 135 static llvm::Optional<bool> 136 normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 137 DiagnosticsEngine &Diags, bool &Success) { 138 if (Args.hasArg(Opt)) 139 return true; 140 return None; 141 } 142 143 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 144 const ArgList &Args, 145 DiagnosticsEngine &, 146 bool &Success) { 147 if (Args.hasArg(Opt)) 148 return false; 149 return None; 150 } 151 152 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 153 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 154 /// unnecessary template instantiations and just ignore it with a variadic 155 /// argument. 156 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 157 const char *Spelling, 158 CompilerInvocation::StringAllocator, 159 Option::OptionClass, unsigned, /*T*/...) { 160 Args.push_back(Spelling); 161 } 162 163 template <typename T> static constexpr bool is_uint64_t_convertible() { 164 return !std::is_same<T, uint64_t>::value && 165 llvm::is_integral_or_enum<T>::value; 166 } 167 168 template <typename T, 169 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 170 static auto makeFlagToValueNormalizer(T Value) { 171 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 172 DiagnosticsEngine &, bool &Success) -> Optional<T> { 173 if (Args.hasArg(Opt)) 174 return Value; 175 return None; 176 }; 177 } 178 179 template <typename T, 180 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 181 static auto makeFlagToValueNormalizer(T Value) { 182 return makeFlagToValueNormalizer(uint64_t(Value)); 183 } 184 185 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 186 OptSpecifier OtherOpt) { 187 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 188 const ArgList &Args, DiagnosticsEngine &, 189 bool &Success) -> Optional<bool> { 190 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 191 return A->getOption().matches(Opt) ? Value : OtherValue; 192 } 193 return None; 194 }; 195 } 196 197 static auto makeBooleanOptionDenormalizer(bool Value) { 198 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 199 CompilerInvocation::StringAllocator, Option::OptionClass, 200 unsigned, bool KeyPath) { 201 if (KeyPath == Value) 202 Args.push_back(Spelling); 203 }; 204 } 205 206 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 207 const char *Spelling, 208 CompilerInvocation::StringAllocator SA, 209 Option::OptionClass OptClass, unsigned, 210 const Twine &Value) { 211 switch (OptClass) { 212 case Option::SeparateClass: 213 case Option::JoinedOrSeparateClass: 214 Args.push_back(Spelling); 215 Args.push_back(SA(Value)); 216 break; 217 case Option::JoinedClass: 218 case Option::CommaJoinedClass: 219 Args.push_back(SA(Twine(Spelling) + Value)); 220 break; 221 default: 222 llvm_unreachable("Cannot denormalize an option with option class " 223 "incompatible with string denormalization."); 224 } 225 } 226 227 template <typename T> 228 static void 229 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 230 CompilerInvocation::StringAllocator SA, 231 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 232 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 233 } 234 235 static Optional<SimpleEnumValue> 236 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 237 for (int I = 0, E = Table.Size; I != E; ++I) 238 if (Name == Table.Table[I].Name) 239 return Table.Table[I]; 240 241 return None; 242 } 243 244 static Optional<SimpleEnumValue> 245 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 246 for (int I = 0, E = Table.Size; I != E; ++I) 247 if (Value == Table.Table[I].Value) 248 return Table.Table[I]; 249 250 return None; 251 } 252 253 static llvm::Optional<unsigned> 254 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 255 DiagnosticsEngine &Diags, bool &Success) { 256 assert(TableIndex < SimpleEnumValueTablesSize); 257 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 258 259 auto *Arg = Args.getLastArg(Opt); 260 if (!Arg) 261 return None; 262 263 StringRef ArgValue = Arg->getValue(); 264 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 265 return MaybeEnumVal->Value; 266 267 Success = false; 268 Diags.Report(diag::err_drv_invalid_value) 269 << Arg->getAsString(Args) << ArgValue; 270 return None; 271 } 272 273 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 274 const char *Spelling, 275 CompilerInvocation::StringAllocator SA, 276 Option::OptionClass OptClass, 277 unsigned TableIndex, unsigned Value) { 278 assert(TableIndex < SimpleEnumValueTablesSize); 279 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 280 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 281 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 282 MaybeEnumVal->Name); 283 } else { 284 llvm_unreachable("The simple enum value was not correctly defined in " 285 "the tablegen option description"); 286 } 287 } 288 289 template <typename T> 290 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 291 const char *Spelling, 292 CompilerInvocation::StringAllocator SA, 293 Option::OptionClass OptClass, 294 unsigned TableIndex, T Value) { 295 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 296 static_cast<unsigned>(Value)); 297 } 298 299 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 300 const ArgList &Args, 301 DiagnosticsEngine &Diags, 302 bool &Success) { 303 auto *Arg = Args.getLastArg(Opt); 304 if (!Arg) 305 return None; 306 return std::string(Arg->getValue()); 307 } 308 309 template <typename IntTy> 310 static Optional<IntTy> 311 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 312 DiagnosticsEngine &Diags, bool &Success) { 313 auto *Arg = Args.getLastArg(Opt); 314 if (!Arg) 315 return None; 316 IntTy Res; 317 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 318 Success = false; 319 Diags.Report(diag::err_drv_invalid_int_value) 320 << Arg->getAsString(Args) << Arg->getValue(); 321 return None; 322 } 323 return Res; 324 } 325 326 static Optional<std::vector<std::string>> 327 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 328 DiagnosticsEngine &, bool &Success) { 329 return Args.getAllArgValues(Opt); 330 } 331 332 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 333 const char *Spelling, 334 CompilerInvocation::StringAllocator SA, 335 Option::OptionClass OptClass, 336 unsigned TableIndex, 337 const std::vector<std::string> &Values) { 338 switch (OptClass) { 339 case Option::CommaJoinedClass: { 340 std::string CommaJoinedValue; 341 if (!Values.empty()) { 342 CommaJoinedValue.append(Values.front()); 343 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 344 CommaJoinedValue.append(","); 345 CommaJoinedValue.append(Value); 346 } 347 } 348 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 349 TableIndex, CommaJoinedValue); 350 break; 351 } 352 case Option::JoinedClass: 353 case Option::SeparateClass: 354 case Option::JoinedOrSeparateClass: 355 for (const std::string &Value : Values) 356 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 357 break; 358 default: 359 llvm_unreachable("Cannot denormalize an option with option class " 360 "incompatible with string vector denormalization."); 361 } 362 } 363 364 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 365 const ArgList &Args, 366 DiagnosticsEngine &Diags, 367 bool &Success) { 368 auto *Arg = Args.getLastArg(Opt); 369 if (!Arg) 370 return None; 371 return llvm::Triple::normalize(Arg->getValue()); 372 } 373 374 template <typename T, typename U> 375 static T mergeForwardValue(T KeyPath, U Value) { 376 return static_cast<T>(Value); 377 } 378 379 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 380 return KeyPath | Value; 381 } 382 383 template <typename T> static T extractForwardValue(T KeyPath) { 384 return KeyPath; 385 } 386 387 template <typename T, typename U, U Value> 388 static T extractMaskValue(T KeyPath) { 389 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 390 } 391 392 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 393 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 394 IMPLIED_CHECK, IMPLIED_VALUE, \ 395 NORMALIZER, MERGER, TABLE_INDEX) \ 396 if ((FLAGS)&options::CC1Option) { \ 397 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 398 if (IMPLIED_CHECK) \ 399 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 400 if (SHOULD_PARSE) \ 401 if (auto MaybeValue = \ 402 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 403 KEYPATH = \ 404 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 405 } 406 407 // Capture the extracted value as a lambda argument to avoid potential issues 408 // with lifetime extension of the reference. 409 #define GENERATE_OPTION_WITH_MARSHALLING( \ 410 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 411 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 412 TABLE_INDEX) \ 413 if ((FLAGS)&options::CC1Option) { \ 414 [&](const auto &Extracted) { \ 415 if (ALWAYS_EMIT || \ 416 (Extracted != \ 417 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 418 : (DEFAULT_VALUE)))) \ 419 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 420 TABLE_INDEX, Extracted); \ 421 }(EXTRACTOR(KEYPATH)); \ 422 } 423 424 static const StringRef GetInputKindName(InputKind IK); 425 426 static void FixupInvocation(CompilerInvocation &Invocation, 427 DiagnosticsEngine &Diags, const InputArgList &Args, 428 InputKind IK) { 429 LangOptions &LangOpts = *Invocation.getLangOpts(); 430 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 431 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 432 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 433 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 434 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 435 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 436 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 437 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 438 439 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 440 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 441 LangOpts.CurrentModule = LangOpts.ModuleName; 442 443 llvm::Triple T(TargetOpts.Triple); 444 llvm::Triple::ArchType Arch = T.getArch(); 445 446 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 447 448 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 449 T.isWindowsMSVCEnvironment()) 450 Diags.Report(diag::err_fe_invalid_exception_model) 451 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 452 453 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 454 Diags.Report(diag::warn_c_kext); 455 456 if (Args.hasArg(OPT_fconcepts_ts)) 457 Diags.Report(diag::warn_fe_concepts_ts_flag); 458 459 if (LangOpts.NewAlignOverride && 460 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 461 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 462 Diags.Report(diag::err_fe_invalid_alignment) 463 << A->getAsString(Args) << A->getValue(); 464 LangOpts.NewAlignOverride = 0; 465 } 466 467 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 468 Diags.Report(diag::err_drv_argument_not_allowed_with) 469 << "-fgnu89-inline" << GetInputKindName(IK); 470 471 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 472 Diags.Report(diag::warn_ignored_hip_only_option) 473 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 474 475 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 476 Diags.Report(diag::warn_ignored_hip_only_option) 477 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 478 479 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 480 // This option should be deprecated for CL > 1.0 because 481 // this option was added for compatibility with OpenCL 1.0. 482 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 483 Diags.Report(diag::warn_option_invalid_ocl_version) 484 << LangOpts.getOpenCLVersionTuple().getAsString() 485 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 486 487 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 488 auto DefaultCC = LangOpts.getDefaultCallingConv(); 489 490 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 491 DefaultCC == LangOptions::DCC_StdCall) && 492 Arch != llvm::Triple::x86; 493 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 494 DefaultCC == LangOptions::DCC_RegCall) && 495 !T.isX86(); 496 if (emitError) 497 Diags.Report(diag::err_drv_argument_not_allowed_with) 498 << A->getSpelling() << T.getTriple(); 499 } 500 501 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 502 Diags.Report(diag::err_drv_argument_only_allowed_with) 503 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 504 << "-fno-legacy-pass-manager"; 505 } 506 507 //===----------------------------------------------------------------------===// 508 // Deserialization (from args) 509 //===----------------------------------------------------------------------===// 510 511 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 512 DiagnosticsEngine &Diags) { 513 unsigned DefaultOpt = llvm::CodeGenOpt::None; 514 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 515 DefaultOpt = llvm::CodeGenOpt::Default; 516 517 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 518 if (A->getOption().matches(options::OPT_O0)) 519 return llvm::CodeGenOpt::None; 520 521 if (A->getOption().matches(options::OPT_Ofast)) 522 return llvm::CodeGenOpt::Aggressive; 523 524 assert(A->getOption().matches(options::OPT_O)); 525 526 StringRef S(A->getValue()); 527 if (S == "s" || S == "z") 528 return llvm::CodeGenOpt::Default; 529 530 if (S == "g") 531 return llvm::CodeGenOpt::Less; 532 533 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 534 } 535 536 return DefaultOpt; 537 } 538 539 static unsigned getOptimizationLevelSize(ArgList &Args) { 540 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 541 if (A->getOption().matches(options::OPT_O)) { 542 switch (A->getValue()[0]) { 543 default: 544 return 0; 545 case 's': 546 return 1; 547 case 'z': 548 return 2; 549 } 550 } 551 } 552 return 0; 553 } 554 555 static void GenerateArg(SmallVectorImpl<const char *> &Args, 556 llvm::opt::OptSpecifier OptSpecifier, 557 CompilerInvocation::StringAllocator SA) { 558 Option Opt = getDriverOptTable().getOption(OptSpecifier); 559 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 560 Option::OptionClass::FlagClass, 0); 561 } 562 563 static void GenerateArg(SmallVectorImpl<const char *> &Args, 564 llvm::opt::OptSpecifier OptSpecifier, 565 const Twine &Value, 566 CompilerInvocation::StringAllocator SA) { 567 Option Opt = getDriverOptTable().getOption(OptSpecifier); 568 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 569 Opt.getKind(), 0, Value); 570 } 571 572 // Parse subset of command line arguments into a member of CompilerInvocation. 573 using ParseFn = llvm::function_ref<bool(CompilerInvocation &, ArgList &, 574 DiagnosticsEngine &)>; 575 576 // Generate part of command line arguments from a member of CompilerInvocation. 577 using GenerateFn = llvm::function_ref<void( 578 CompilerInvocation &, SmallVectorImpl<const char *> &, 579 CompilerInvocation::StringAllocator)>; 580 581 // Swap between dummy/real instance of a CompilerInvocation member. 582 using SwapOptsFn = llvm::function_ref<void(CompilerInvocation &)>; 583 584 // Performs round-trip of command line arguments if OriginalArgs contain 585 // "-round-trip-args". Effectively runs the Parse function for a part of 586 // CompilerInvocation on command line arguments that were already once parsed 587 // and generated. This is used to check the Generate function produces arguments 588 // that are semantically equivalent to those that were used to create 589 // CompilerInvocation. 590 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, SwapOptsFn SwapOpts, 591 CompilerInvocation &Res, ArgList &OriginalArgs, 592 DiagnosticsEngine &Diags, StringRef OptsName) { 593 // FIXME: Switch to '#ifndef NDEBUG' when possible. 594 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 595 bool DoRoundTripDefault = true; 596 #else 597 bool DoRoundTripDefault = false; 598 #endif 599 600 bool DoRoundTrip = OriginalArgs.hasFlag( 601 OPT_round_trip_args, OPT_no_round_trip_args, DoRoundTripDefault); 602 603 // If round-trip was not requested, simply run the parser with the original 604 // options and diagnostics. 605 if (!DoRoundTrip) 606 return Parse(Res, OriginalArgs, Diags); 607 608 // Serializes quoted (and potentially escaped) arguments. 609 auto SerializeArgs = [](ArgStringList &Args) { 610 std::string Buffer; 611 llvm::raw_string_ostream OS(Buffer); 612 for (const char *Arg : Args) { 613 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 614 OS << ' '; 615 } 616 OS.flush(); 617 return Buffer; 618 }; 619 620 OriginalArgs.clearQueriedOpts(); 621 622 // Setup a dummy DiagnosticsEngine. 623 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 624 DummyDiags.setClient(new TextDiagnosticBuffer()); 625 626 // Run the first parse on the original arguments with dummy options and 627 // diagnostics. 628 SwapOpts(Res); 629 if (!Parse(Res, OriginalArgs, DummyDiags) || 630 DummyDiags.getNumWarnings() != 0) { 631 // If the first parse did not succeed, it must be user mistake (invalid 632 // command line arguments). We won't be able to generate arguments that 633 // would reproduce the same result. Let's fail again with the original 634 // options and diagnostics, so all side-effects of parsing are visible. 635 unsigned NumWarningsBefore = Diags.getNumWarnings(); 636 SwapOpts(Res); 637 auto Success = Parse(Res, OriginalArgs, Diags); 638 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 639 return Success; 640 641 // Parse with original options and diagnostics succeeded even though it 642 // shouldn't have. Something is off. 643 Diags.Report(diag::err_cc1_round_trip_fail_then_ok) << OptsName; 644 ArgStringList OriginalStrings; 645 OriginalArgs.AddAllArgsExcept(OriginalStrings, {}); 646 Diags.Report(diag::note_cc1_round_trip_original) 647 << OptsName << SerializeArgs(OriginalStrings); 648 return false; 649 } 650 651 // Setup string allocator. 652 llvm::BumpPtrAllocator Alloc; 653 llvm::StringSaver StringPool(Alloc); 654 auto SA = [&StringPool](const Twine &Arg) { 655 return StringPool.save(Arg).data(); 656 }; 657 658 // Generate arguments. First simply copy any arguments the parser did not 659 // query. Then, use the Generate function that uses the CompilerInvocation 660 // options instance as the source of truth. If Generate is the inverse of 661 // Parse, the newly generated arguments must have the same semantics as the 662 // original. 663 ArgStringList GeneratedStrings1; 664 OriginalArgs.AddAllArgsExcept(GeneratedStrings1, 665 OriginalArgs.getQueriedOpts()); 666 Generate(Res, GeneratedStrings1, SA); 667 668 // Process the generated arguments. 669 unsigned MissingArgIndex1, MissingArgCount1; 670 InputArgList GeneratedArgs1 = 671 getDriverOptTable().ParseArgs(GeneratedStrings1, MissingArgIndex1, 672 MissingArgCount1, options::CC1Option); 673 674 // TODO: Once we're responsible for generating all arguments, check that we 675 // didn't create any unknown options or omitted required values. 676 677 // Run the second parse, now on the generated arguments, and with the original 678 // options and diagnostics. The result is what we will end up using for the 679 // rest of compilation, so if Generate is not inverse of Parse, something down 680 // the line will break. 681 SwapOpts(Res); 682 bool Success2 = Parse(Res, GeneratedArgs1, Diags); 683 684 // The first parse on original arguments succeeded, but second parse of 685 // generated arguments failed. Something must be wrong with the generator. 686 if (!Success2) { 687 Diags.Report(diag::err_cc1_round_trip_ok_then_fail) << OptsName; 688 Diags.Report(diag::note_cc1_round_trip_generated) 689 << OptsName << 1 << SerializeArgs(GeneratedStrings1); 690 return false; 691 } 692 693 // Generate arguments again, this time from the options we will end up using 694 // for the rest of the compilation. 695 ArgStringList GeneratedStrings2; 696 GeneratedArgs1.AddAllArgsExcept(GeneratedStrings2, 697 GeneratedArgs1.getQueriedOpts()); 698 Generate(Res, GeneratedStrings2, SA); 699 700 // Compares two lists of generated arguments. 701 auto Equal = [](const ArgStringList &A, const ArgStringList &B) { 702 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 703 [](const char *AElem, const char *BElem) { 704 return StringRef(AElem) == StringRef(BElem); 705 }); 706 }; 707 708 // If we generated different arguments from what we assume are two 709 // semantically equivalent CompilerInvocations, the Generate function may 710 // be non-deterministic. 711 if (!Equal(GeneratedStrings1, GeneratedStrings2)) { 712 Diags.Report(diag::err_cc1_round_trip_mismatch) << OptsName; 713 Diags.Report(diag::note_cc1_round_trip_generated) 714 << OptsName << 1 << SerializeArgs(GeneratedStrings1); 715 Diags.Report(diag::note_cc1_round_trip_generated) 716 << OptsName << 2 << SerializeArgs(GeneratedStrings2); 717 return false; 718 } 719 720 Diags.Report(diag::remark_cc1_round_trip_generated) 721 << OptsName << 1 << SerializeArgs(GeneratedStrings1); 722 Diags.Report(diag::remark_cc1_round_trip_generated) 723 << OptsName << 2 << SerializeArgs(GeneratedStrings2); 724 725 return Success2; 726 } 727 728 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 729 OptSpecifier GroupWithValue, 730 std::vector<std::string> &Diagnostics) { 731 for (auto *A : Args.filtered(Group)) { 732 if (A->getOption().getKind() == Option::FlagClass) { 733 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 734 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 735 Diagnostics.push_back( 736 std::string(A->getOption().getName().drop_front(1))); 737 } else if (A->getOption().matches(GroupWithValue)) { 738 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 739 // group. Add only the group name to the diagnostics. 740 Diagnostics.push_back( 741 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 742 } else { 743 // Otherwise, add its value (for OPT_W_Joined and similar). 744 Diagnostics.push_back(A->getValue()); 745 } 746 } 747 } 748 749 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 750 // it won't verify the input. 751 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 752 DiagnosticsEngine *Diags); 753 754 static void getAllNoBuiltinFuncValues(ArgList &Args, 755 std::vector<std::string> &Funcs) { 756 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 757 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 758 return Builtin::Context::isBuiltinFunc(FuncName); 759 }); 760 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 761 } 762 763 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 764 SmallVectorImpl<const char *> &Args, 765 CompilerInvocation::StringAllocator SA) { 766 const AnalyzerOptions *AnalyzerOpts = &Opts; 767 768 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 769 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 770 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 771 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 772 MERGER, EXTRACTOR, TABLE_INDEX) \ 773 GENERATE_OPTION_WITH_MARSHALLING( \ 774 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 775 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 776 #include "clang/Driver/Options.inc" 777 #undef ANALYZER_OPTION_WITH_MARSHALLING 778 779 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 780 switch (Opts.AnalysisStoreOpt) { 781 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 782 case NAME##Model: \ 783 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 784 break; 785 #include "clang/StaticAnalyzer/Core/Analyses.def" 786 default: 787 llvm_unreachable("Tried to generate unknown analysis store."); 788 } 789 } 790 791 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 792 switch (Opts.AnalysisConstraintsOpt) { 793 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 794 case NAME##Model: \ 795 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 796 break; 797 #include "clang/StaticAnalyzer/Core/Analyses.def" 798 default: 799 llvm_unreachable("Tried to generate unknown analysis constraint."); 800 } 801 } 802 803 if (Opts.AnalysisDiagOpt != PD_HTML) { 804 switch (Opts.AnalysisDiagOpt) { 805 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 806 case PD_##NAME: \ 807 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 808 break; 809 #include "clang/StaticAnalyzer/Core/Analyses.def" 810 default: 811 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 812 } 813 } 814 815 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 816 switch (Opts.AnalysisPurgeOpt) { 817 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 818 case NAME: \ 819 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 820 break; 821 #include "clang/StaticAnalyzer/Core/Analyses.def" 822 default: 823 llvm_unreachable("Tried to generate unknown analysis purge mode."); 824 } 825 } 826 827 if (Opts.InliningMode != NoRedundancy) { 828 switch (Opts.InliningMode) { 829 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 830 case NAME: \ 831 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 832 break; 833 #include "clang/StaticAnalyzer/Core/Analyses.def" 834 default: 835 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 836 } 837 } 838 839 for (const auto &CP : Opts.CheckersAndPackages) { 840 OptSpecifier Opt = 841 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 842 GenerateArg(Args, Opt, CP.first, SA); 843 } 844 845 AnalyzerOptions ConfigOpts; 846 parseAnalyzerConfigs(ConfigOpts, nullptr); 847 848 for (const auto &C : Opts.Config) { 849 // Don't generate anything that came from parseAnalyzerConfigs. It would be 850 // redundant and may not be valid on the command line. 851 auto Entry = ConfigOpts.Config.find(C.getKey()); 852 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 853 continue; 854 855 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 856 } 857 858 // Nothing to generate for FullCompilerInvocation. 859 } 860 861 static bool ParseAnalyzerArgsImpl(AnalyzerOptions &Opts, ArgList &Args, 862 DiagnosticsEngine &Diags) { 863 AnalyzerOptions *AnalyzerOpts = &Opts; 864 bool Success = true; 865 866 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 867 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 868 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 869 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 870 MERGER, EXTRACTOR, TABLE_INDEX) \ 871 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 872 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 873 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 874 MERGER, TABLE_INDEX) 875 #include "clang/Driver/Options.inc" 876 #undef ANALYZER_OPTION_WITH_MARSHALLING 877 878 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 879 StringRef Name = A->getValue(); 880 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 881 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 882 .Case(CMDFLAG, NAME##Model) 883 #include "clang/StaticAnalyzer/Core/Analyses.def" 884 .Default(NumStores); 885 if (Value == NumStores) { 886 Diags.Report(diag::err_drv_invalid_value) 887 << A->getAsString(Args) << Name; 888 Success = false; 889 } else { 890 Opts.AnalysisStoreOpt = Value; 891 } 892 } 893 894 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 895 StringRef Name = A->getValue(); 896 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 897 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 898 .Case(CMDFLAG, NAME##Model) 899 #include "clang/StaticAnalyzer/Core/Analyses.def" 900 .Default(NumConstraints); 901 if (Value == NumConstraints) { 902 Diags.Report(diag::err_drv_invalid_value) 903 << A->getAsString(Args) << Name; 904 Success = false; 905 } else { 906 Opts.AnalysisConstraintsOpt = Value; 907 } 908 } 909 910 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 911 StringRef Name = A->getValue(); 912 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 913 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 914 .Case(CMDFLAG, PD_##NAME) 915 #include "clang/StaticAnalyzer/Core/Analyses.def" 916 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 917 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 918 Diags.Report(diag::err_drv_invalid_value) 919 << A->getAsString(Args) << Name; 920 Success = false; 921 } else { 922 Opts.AnalysisDiagOpt = Value; 923 } 924 } 925 926 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 927 StringRef Name = A->getValue(); 928 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 929 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 930 .Case(CMDFLAG, NAME) 931 #include "clang/StaticAnalyzer/Core/Analyses.def" 932 .Default(NumPurgeModes); 933 if (Value == NumPurgeModes) { 934 Diags.Report(diag::err_drv_invalid_value) 935 << A->getAsString(Args) << Name; 936 Success = false; 937 } else { 938 Opts.AnalysisPurgeOpt = Value; 939 } 940 } 941 942 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 943 StringRef Name = A->getValue(); 944 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 945 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 946 .Case(CMDFLAG, NAME) 947 #include "clang/StaticAnalyzer/Core/Analyses.def" 948 .Default(NumInliningModes); 949 if (Value == NumInliningModes) { 950 Diags.Report(diag::err_drv_invalid_value) 951 << A->getAsString(Args) << Name; 952 Success = false; 953 } else { 954 Opts.InliningMode = Value; 955 } 956 } 957 958 Opts.CheckersAndPackages.clear(); 959 for (const Arg *A : 960 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 961 A->claim(); 962 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 963 // We can have a list of comma separated checker names, e.g: 964 // '-analyzer-checker=cocoa,unix' 965 StringRef CheckerAndPackageList = A->getValue(); 966 SmallVector<StringRef, 16> CheckersAndPackages; 967 CheckerAndPackageList.split(CheckersAndPackages, ","); 968 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 969 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 970 IsEnabled); 971 } 972 973 // Go through the analyzer configuration options. 974 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 975 976 // We can have a list of comma separated config names, e.g: 977 // '-analyzer-config key1=val1,key2=val2' 978 StringRef configList = A->getValue(); 979 SmallVector<StringRef, 4> configVals; 980 configList.split(configVals, ","); 981 for (const auto &configVal : configVals) { 982 StringRef key, val; 983 std::tie(key, val) = configVal.split("="); 984 if (val.empty()) { 985 Diags.Report(SourceLocation(), 986 diag::err_analyzer_config_no_value) << configVal; 987 Success = false; 988 break; 989 } 990 if (val.find('=') != StringRef::npos) { 991 Diags.Report(SourceLocation(), 992 diag::err_analyzer_config_multiple_values) 993 << configVal; 994 Success = false; 995 break; 996 } 997 998 // TODO: Check checker options too, possibly in CheckerRegistry. 999 // Leave unknown non-checker configs unclaimed. 1000 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1001 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) { 1002 Diags.Report(diag::err_analyzer_config_unknown) << key; 1003 Success = false; 1004 } 1005 continue; 1006 } 1007 1008 A->claim(); 1009 Opts.Config[key] = std::string(val); 1010 } 1011 } 1012 1013 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1014 parseAnalyzerConfigs(Opts, &Diags); 1015 else 1016 parseAnalyzerConfigs(Opts, nullptr); 1017 1018 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1019 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1020 if (i != 0) 1021 os << " "; 1022 os << Args.getArgString(i); 1023 } 1024 os.flush(); 1025 1026 return Success; 1027 } 1028 1029 static bool ParseAnalyzerArgs(CompilerInvocation &Res, AnalyzerOptions &Opts, 1030 ArgList &Args, DiagnosticsEngine &Diags) { 1031 auto DummyOpts = IntrusiveRefCntPtr<AnalyzerOptions>(new AnalyzerOptions()); 1032 1033 return RoundTrip( 1034 [](CompilerInvocation &Res, ArgList &Args, DiagnosticsEngine &Diags) { 1035 return ParseAnalyzerArgsImpl(*Res.getAnalyzerOpts(), Args, Diags); 1036 }, 1037 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &Args, 1038 CompilerInvocation::StringAllocator SA) { 1039 GenerateAnalyzerArgs(*Res.getAnalyzerOpts(), Args, SA); 1040 }, 1041 [&DummyOpts](CompilerInvocation &Res) { 1042 Res.getAnalyzerOpts().swap(DummyOpts); 1043 }, 1044 Res, Args, Diags, "AnalyzerOptions"); 1045 } 1046 1047 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1048 StringRef OptionName, StringRef DefaultVal) { 1049 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1050 } 1051 1052 static void initOption(AnalyzerOptions::ConfigTable &Config, 1053 DiagnosticsEngine *Diags, 1054 StringRef &OptionField, StringRef Name, 1055 StringRef DefaultVal) { 1056 // String options may be known to invalid (e.g. if the expected string is a 1057 // file name, but the file does not exist), those will have to be checked in 1058 // parseConfigs. 1059 OptionField = getStringOption(Config, Name, DefaultVal); 1060 } 1061 1062 static void initOption(AnalyzerOptions::ConfigTable &Config, 1063 DiagnosticsEngine *Diags, 1064 bool &OptionField, StringRef Name, bool DefaultVal) { 1065 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1066 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1067 .Case("true", true) 1068 .Case("false", false) 1069 .Default(None); 1070 1071 if (!PossiblyInvalidVal) { 1072 if (Diags) 1073 Diags->Report(diag::err_analyzer_config_invalid_input) 1074 << Name << "a boolean"; 1075 else 1076 OptionField = DefaultVal; 1077 } else 1078 OptionField = PossiblyInvalidVal.getValue(); 1079 } 1080 1081 static void initOption(AnalyzerOptions::ConfigTable &Config, 1082 DiagnosticsEngine *Diags, 1083 unsigned &OptionField, StringRef Name, 1084 unsigned DefaultVal) { 1085 1086 OptionField = DefaultVal; 1087 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1088 .getAsInteger(0, OptionField); 1089 if (Diags && HasFailed) 1090 Diags->Report(diag::err_analyzer_config_invalid_input) 1091 << Name << "an unsigned"; 1092 } 1093 1094 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1095 DiagnosticsEngine *Diags) { 1096 // TODO: There's no need to store the entire configtable, it'd be plenty 1097 // enough tostore checker options. 1098 1099 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1100 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1101 1102 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1103 SHALLOW_VAL, DEEP_VAL) \ 1104 switch (AnOpts.getUserMode()) { \ 1105 case UMK_Shallow: \ 1106 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1107 break; \ 1108 case UMK_Deep: \ 1109 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1110 break; \ 1111 } \ 1112 1113 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1114 #undef ANALYZER_OPTION 1115 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1116 1117 // At this point, AnalyzerOptions is configured. Let's validate some options. 1118 1119 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1120 // The current approach only validates the registered checkers which does not 1121 // contain the runtime enabled checkers and optimally we would validate both. 1122 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1123 std::vector<StringRef> Checkers = 1124 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1125 std::vector<StringRef> Packages = 1126 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1127 1128 SmallVector<StringRef, 16> CheckersAndPackages; 1129 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1130 1131 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1132 if (Diags) { 1133 bool IsChecker = CheckerOrPackage.contains('.'); 1134 bool IsValidName = 1135 IsChecker 1136 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1137 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1138 1139 if (!IsValidName) 1140 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1141 << CheckerOrPackage; 1142 } 1143 1144 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1145 } 1146 } 1147 1148 if (!Diags) 1149 return; 1150 1151 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1152 Diags->Report(diag::err_analyzer_config_invalid_input) 1153 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1154 1155 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1156 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1157 << "a filename"; 1158 1159 if (!AnOpts.ModelPath.empty() && 1160 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1161 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1162 << "a filename"; 1163 } 1164 1165 /// Create a new Regex instance out of the string value in \p RpassArg. 1166 /// It returns the string and a pointer to the newly generated Regex instance. 1167 static CodeGenOptions::RemarkPattern 1168 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 1169 Arg *RpassArg) { 1170 StringRef Val = RpassArg->getValue(); 1171 std::string RegexError; 1172 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 1173 if (!Pattern->isValid(RegexError)) { 1174 Diags.Report(diag::err_drv_optimization_remark_pattern) 1175 << RegexError << RpassArg->getAsString(Args); 1176 Pattern.reset(); 1177 } 1178 return {std::string(Val), Pattern}; 1179 } 1180 1181 static bool parseDiagnosticLevelMask(StringRef FlagName, 1182 const std::vector<std::string> &Levels, 1183 DiagnosticsEngine &Diags, 1184 DiagnosticLevelMask &M) { 1185 bool Success = true; 1186 for (const auto &Level : Levels) { 1187 DiagnosticLevelMask const PM = 1188 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1189 .Case("note", DiagnosticLevelMask::Note) 1190 .Case("remark", DiagnosticLevelMask::Remark) 1191 .Case("warning", DiagnosticLevelMask::Warning) 1192 .Case("error", DiagnosticLevelMask::Error) 1193 .Default(DiagnosticLevelMask::None); 1194 if (PM == DiagnosticLevelMask::None) { 1195 Success = false; 1196 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1197 } 1198 M = M | PM; 1199 } 1200 return Success; 1201 } 1202 1203 static void parseSanitizerKinds(StringRef FlagName, 1204 const std::vector<std::string> &Sanitizers, 1205 DiagnosticsEngine &Diags, SanitizerSet &S) { 1206 for (const auto &Sanitizer : Sanitizers) { 1207 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1208 if (K == SanitizerMask()) 1209 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1210 else 1211 S.set(K, true); 1212 } 1213 } 1214 1215 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1216 SmallVector<StringRef, 4> Values; 1217 serializeSanitizerSet(S, Values); 1218 return Values; 1219 } 1220 1221 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1222 ArgList &Args, DiagnosticsEngine &D, 1223 XRayInstrSet &S) { 1224 llvm::SmallVector<StringRef, 2> BundleParts; 1225 llvm::SplitString(Bundle, BundleParts, ","); 1226 for (const auto &B : BundleParts) { 1227 auto Mask = parseXRayInstrValue(B); 1228 if (Mask == XRayInstrKind::None) 1229 if (B != "none") 1230 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1231 else 1232 S.Mask = Mask; 1233 else if (Mask == XRayInstrKind::All) 1234 S.Mask = Mask; 1235 else 1236 S.set(Mask, true); 1237 } 1238 } 1239 1240 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1241 llvm::SmallVector<StringRef, 2> BundleParts; 1242 serializeXRayInstrValue(S, BundleParts); 1243 std::string Buffer; 1244 llvm::raw_string_ostream OS(Buffer); 1245 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1246 return OS.str(); 1247 } 1248 1249 // Set the profile kind using fprofile-instrument-use-path. 1250 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1251 const Twine &ProfileName) { 1252 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1253 // In error, return silently and let Clang PGOUse report the error message. 1254 if (auto E = ReaderOrErr.takeError()) { 1255 llvm::consumeError(std::move(E)); 1256 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1257 return; 1258 } 1259 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1260 std::move(ReaderOrErr.get()); 1261 if (PGOReader->isIRLevelProfile()) { 1262 if (PGOReader->hasCSIRLevelProfile()) 1263 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1264 else 1265 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1266 } else 1267 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1268 } 1269 1270 void CompilerInvocation::GenerateCodeGenArgs( 1271 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1272 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1273 const LangOptions *LangOpts) { 1274 const CodeGenOptions &CodeGenOpts = Opts; 1275 1276 if (Opts.OptimizationLevel == 0) 1277 GenerateArg(Args, OPT_O0, SA); 1278 else 1279 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1280 1281 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1282 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1283 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1284 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1285 MERGER, EXTRACTOR, TABLE_INDEX) \ 1286 GENERATE_OPTION_WITH_MARSHALLING( \ 1287 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1288 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1289 #include "clang/Driver/Options.inc" 1290 #undef CODEGEN_OPTION_WITH_MARSHALLING 1291 1292 if (Opts.OptimizationLevel > 0) { 1293 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1294 GenerateArg(Args, OPT_finline_functions, SA); 1295 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1296 GenerateArg(Args, OPT_finline_hint_functions, SA); 1297 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1298 GenerateArg(Args, OPT_fno_inline, SA); 1299 } 1300 1301 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1302 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1303 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1304 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1305 1306 Optional<StringRef> DebugInfoVal; 1307 switch (Opts.DebugInfo) { 1308 case codegenoptions::DebugLineTablesOnly: 1309 DebugInfoVal = "line-tables-only"; 1310 break; 1311 case codegenoptions::DebugDirectivesOnly: 1312 DebugInfoVal = "line-directives-only"; 1313 break; 1314 case codegenoptions::DebugInfoConstructor: 1315 DebugInfoVal = "constructor"; 1316 break; 1317 case codegenoptions::LimitedDebugInfo: 1318 DebugInfoVal = "limited"; 1319 break; 1320 case codegenoptions::FullDebugInfo: 1321 DebugInfoVal = "standalone"; 1322 break; 1323 case codegenoptions::UnusedTypeInfo: 1324 DebugInfoVal = "unused-types"; 1325 break; 1326 case codegenoptions::NoDebugInfo: // default value 1327 DebugInfoVal = None; 1328 break; 1329 case codegenoptions::LocTrackingOnly: // implied value 1330 DebugInfoVal = None; 1331 break; 1332 } 1333 if (DebugInfoVal) 1334 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1335 1336 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1337 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1338 1339 for (const auto &Prefix : Opts.DebugPrefixMap) 1340 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1341 Prefix.first + "=" + Prefix.second, SA); 1342 1343 for (const auto &Prefix : Opts.ProfilePrefixMap) 1344 GenerateArg(Args, OPT_fprofile_prefix_map_EQ, 1345 Prefix.first + "=" + Prefix.second, SA); 1346 1347 if (Opts.NewStructPathTBAA) 1348 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1349 1350 if (Opts.OptimizeSize == 1) 1351 GenerateArg(Args, OPT_O, "s", SA); 1352 else if (Opts.OptimizeSize == 2) 1353 GenerateArg(Args, OPT_O, "z", SA); 1354 1355 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1356 // -ffreestanding. We'll consider that when generating them. 1357 1358 // NoBuiltinFuncs are generated by LangOptions. 1359 1360 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1361 GenerateArg(Args, OPT_funroll_loops, SA); 1362 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1363 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1364 1365 if (!Opts.BinutilsVersion.empty()) 1366 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1367 1368 if (Opts.DebugNameTable == 1369 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1370 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1371 else if (Opts.DebugNameTable == 1372 static_cast<unsigned>( 1373 llvm::DICompileUnit::DebugNameTableKind::Default)) 1374 GenerateArg(Args, OPT_gpubnames, SA); 1375 1376 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1377 // it or PGOUseInstrumentor. 1378 1379 if (Opts.TimePasses) { 1380 if (Opts.TimePassesPerRun) 1381 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1382 else 1383 GenerateArg(Args, OPT_ftime_report, SA); 1384 } 1385 1386 if (Opts.FunctionSections && 1387 (Opts.BBSections == "none" || Opts.BBSections == "labels")) 1388 GenerateArg(Args, OPT_ffunction_sections, SA); 1389 1390 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1391 GenerateArg(Args, OPT_flto, SA); 1392 1393 if (Opts.PrepareForThinLTO) 1394 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1395 1396 if (!Opts.ThinLTOIndexFile.empty()) 1397 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1398 1399 if (Opts.SaveTempsFilePrefix == OutputFile) 1400 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1401 1402 StringRef MemProfileBasename("memprof.profraw"); 1403 if (!Opts.MemoryProfileOutput.empty()) { 1404 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1405 GenerateArg(Args, OPT_fmemory_profile, SA); 1406 } else { 1407 size_t ArgLength = 1408 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1409 GenerateArg(Args, OPT_fmemory_profile_EQ, 1410 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1411 } 1412 } 1413 1414 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1415 GenerateArg(Args, OPT_coverage_version_EQ, Opts.CoverageVersion, SA); 1416 1417 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1418 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1419 // won't be generated.) 1420 1421 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1422 std::string InstrBundle = 1423 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1424 if (!InstrBundle.empty()) 1425 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1426 } 1427 1428 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1429 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1430 else if (Opts.CFProtectionReturn) 1431 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1432 else if (Opts.CFProtectionBranch) 1433 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1434 1435 for (const auto &F : Opts.LinkBitcodeFiles) { 1436 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1437 F.PropagateAttrs && F.Internalize; 1438 GenerateArg(Args, 1439 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1440 F.Filename, SA); 1441 } 1442 1443 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1444 // That would make it easy to generate the option only **once** if it was 1445 // explicitly set to non-default value. 1446 if (Opts.ExplicitEmulatedTLS) { 1447 GenerateArg( 1448 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1449 } 1450 1451 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) { 1452 std::string Buffer; 1453 llvm::raw_string_ostream OS(Buffer); 1454 Opts.FPDenormalMode.print(OS); 1455 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, OS.str(), SA); 1456 } 1457 1458 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) { 1459 std::string Buffer; 1460 llvm::raw_string_ostream OS(Buffer); 1461 Opts.FP32DenormalMode.print(OS); 1462 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, OS.str(), SA); 1463 } 1464 1465 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1466 OptSpecifier Opt = 1467 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1468 GenerateArg(Args, Opt, SA); 1469 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1470 OptSpecifier Opt = 1471 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1472 GenerateArg(Args, Opt, SA); 1473 } 1474 1475 if (Opts.IgnoreXCOFFVisibility) 1476 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 1477 1478 if (Opts.EnableAIXExtendedAltivecABI) 1479 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1480 1481 if (!Opts.OptRecordPasses.empty()) 1482 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1483 1484 if (!Opts.OptRecordFormat.empty()) 1485 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1486 1487 if (Opts.OptimizationRemarkPattern) 1488 GenerateArg(Args, OPT_Rpass_EQ, Opts.OptimizationRemarkPattern.Pattern, SA); 1489 1490 if (Opts.OptimizationRemarkMissedPattern) 1491 GenerateArg(Args, OPT_Rpass_missed_EQ, 1492 Opts.OptimizationRemarkMissedPattern.Pattern, SA); 1493 1494 if (Opts.OptimizationRemarkAnalysisPattern) 1495 GenerateArg(Args, OPT_Rpass_analysis_EQ, 1496 Opts.OptimizationRemarkAnalysisPattern.Pattern, SA); 1497 1498 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1499 Opts.DiagnosticsHotnessThreshold 1500 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1501 : "auto", 1502 SA); 1503 1504 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1505 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1506 1507 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1508 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1509 1510 if (!Opts.EmitVersionIdentMetadata) 1511 GenerateArg(Args, OPT_Qn, SA); 1512 1513 switch (Opts.FiniteLoops) { 1514 case CodeGenOptions::FiniteLoopsKind::Language: 1515 break; 1516 case CodeGenOptions::FiniteLoopsKind::Always: 1517 GenerateArg(Args, OPT_ffinite_loops, SA); 1518 break; 1519 case CodeGenOptions::FiniteLoopsKind::Never: 1520 GenerateArg(Args, OPT_fno_finite_loops, SA); 1521 break; 1522 } 1523 } 1524 1525 bool CompilerInvocation::ParseCodeGenArgsImpl(CodeGenOptions &Opts, 1526 ArgList &Args, InputKind IK, 1527 DiagnosticsEngine &Diags, 1528 const llvm::Triple &T, 1529 const std::string &OutputFile, 1530 const LangOptions &LangOptsRef) { 1531 unsigned NumErrorsBefore = Diags.getNumErrors(); 1532 1533 bool Success = true; 1534 1535 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1536 // TODO: This could be done in Driver 1537 unsigned MaxOptLevel = 3; 1538 if (OptimizationLevel > MaxOptLevel) { 1539 // If the optimization level is not supported, fall back on the default 1540 // optimization 1541 Diags.Report(diag::warn_drv_optimization_value) 1542 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1543 OptimizationLevel = MaxOptLevel; 1544 } 1545 Opts.OptimizationLevel = OptimizationLevel; 1546 1547 // The key paths of codegen options defined in Options.td start with 1548 // "CodeGenOpts.". Let's provide the expected variable name and type. 1549 CodeGenOptions &CodeGenOpts = Opts; 1550 // Some codegen options depend on language options. Let's provide the expected 1551 // variable name and type. 1552 const LangOptions *LangOpts = &LangOptsRef; 1553 1554 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1555 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1556 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1557 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1558 MERGER, EXTRACTOR, TABLE_INDEX) \ 1559 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1560 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1561 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1562 MERGER, TABLE_INDEX) 1563 #include "clang/Driver/Options.inc" 1564 #undef CODEGEN_OPTION_WITH_MARSHALLING 1565 1566 // At O0 we want to fully disable inlining outside of cases marked with 1567 // 'alwaysinline' that are required for correctness. 1568 Opts.setInlining((Opts.OptimizationLevel == 0) 1569 ? CodeGenOptions::OnlyAlwaysInlining 1570 : CodeGenOptions::NormalInlining); 1571 // Explicit inlining flags can disable some or all inlining even at 1572 // optimization levels above zero. 1573 if (Arg *InlineArg = Args.getLastArg( 1574 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1575 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1576 if (Opts.OptimizationLevel > 0) { 1577 const Option &InlineOpt = InlineArg->getOption(); 1578 if (InlineOpt.matches(options::OPT_finline_functions)) 1579 Opts.setInlining(CodeGenOptions::NormalInlining); 1580 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1581 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1582 else 1583 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1584 } 1585 } 1586 1587 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1588 // -fdirect-access-external-data. 1589 Opts.DirectAccessExternalData = 1590 Args.hasArg(OPT_fdirect_access_external_data) || 1591 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1592 LangOpts->PICLevel == 0); 1593 1594 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1595 unsigned Val = 1596 llvm::StringSwitch<unsigned>(A->getValue()) 1597 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1598 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1599 .Case("constructor", codegenoptions::DebugInfoConstructor) 1600 .Case("limited", codegenoptions::LimitedDebugInfo) 1601 .Case("standalone", codegenoptions::FullDebugInfo) 1602 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1603 .Default(~0U); 1604 if (Val == ~0U) 1605 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1606 << A->getValue(); 1607 else 1608 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1609 } 1610 1611 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1612 // constructor homing. 1613 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1614 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1615 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1616 1617 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1618 auto Split = StringRef(Arg).split('='); 1619 Opts.DebugPrefixMap.insert( 1620 {std::string(Split.first), std::string(Split.second)}); 1621 } 1622 1623 for (const auto &Arg : Args.getAllArgValues(OPT_fprofile_prefix_map_EQ)) { 1624 auto Split = StringRef(Arg).split('='); 1625 Opts.ProfilePrefixMap.insert( 1626 {std::string(Split.first), std::string(Split.second)}); 1627 } 1628 1629 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1630 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1631 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1632 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1633 1634 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1635 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1636 Opts.EmitCallSiteInfo = true; 1637 1638 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1639 Args.hasArg(OPT_new_struct_path_tbaa); 1640 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1641 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1642 if (Opts.SimplifyLibCalls) 1643 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1644 Opts.UnrollLoops = 1645 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1646 (Opts.OptimizationLevel > 1)); 1647 Opts.BinutilsVersion = 1648 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1649 1650 Opts.DebugNameTable = static_cast<unsigned>( 1651 Args.hasArg(OPT_ggnu_pubnames) 1652 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1653 : Args.hasArg(OPT_gpubnames) 1654 ? llvm::DICompileUnit::DebugNameTableKind::Default 1655 : llvm::DICompileUnit::DebugNameTableKind::None); 1656 1657 if (!Opts.ProfileInstrumentUsePath.empty()) 1658 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1659 1660 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1661 Opts.TimePasses = true; 1662 1663 // -ftime-report= is only for new pass manager. 1664 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1665 if (Opts.LegacyPassManager) 1666 Diags.Report(diag::err_drv_argument_only_allowed_with) 1667 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1668 1669 StringRef Val = A->getValue(); 1670 if (Val == "per-pass") 1671 Opts.TimePassesPerRun = false; 1672 else if (Val == "per-pass-run") 1673 Opts.TimePassesPerRun = true; 1674 else 1675 Diags.Report(diag::err_drv_invalid_value) 1676 << A->getAsString(Args) << A->getValue(); 1677 } 1678 } 1679 1680 // Basic Block Sections implies Function Sections. 1681 Opts.FunctionSections = 1682 Args.hasArg(OPT_ffunction_sections) || 1683 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 1684 1685 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1686 Opts.PrepareForThinLTO = false; 1687 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1688 StringRef S = A->getValue(); 1689 if (S == "thin") 1690 Opts.PrepareForThinLTO = true; 1691 else if (S != "full") 1692 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1693 } 1694 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1695 if (IK.getLanguage() != Language::LLVM_IR) 1696 Diags.Report(diag::err_drv_argument_only_allowed_with) 1697 << A->getAsString(Args) << "-x ir"; 1698 Opts.ThinLTOIndexFile = 1699 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1700 } 1701 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1702 Opts.SaveTempsFilePrefix = 1703 llvm::StringSwitch<std::string>(A->getValue()) 1704 .Case("obj", OutputFile) 1705 .Default(llvm::sys::path::filename(OutputFile).str()); 1706 1707 // The memory profile runtime appends the pid to make this name more unique. 1708 const char *MemProfileBasename = "memprof.profraw"; 1709 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1710 SmallString<128> Path( 1711 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1712 llvm::sys::path::append(Path, MemProfileBasename); 1713 Opts.MemoryProfileOutput = std::string(Path); 1714 } else if (Args.hasArg(OPT_fmemory_profile)) 1715 Opts.MemoryProfileOutput = MemProfileBasename; 1716 1717 memcpy(Opts.CoverageVersion, "408*", 4); 1718 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1719 if (Args.hasArg(OPT_coverage_version_EQ)) { 1720 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1721 if (CoverageVersion.size() != 4) { 1722 Diags.Report(diag::err_drv_invalid_value) 1723 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1724 << CoverageVersion; 1725 } else { 1726 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1727 } 1728 } 1729 } 1730 // FIXME: For backend options that are not yet recorded as function 1731 // attributes in the IR, keep track of them so we can embed them in a 1732 // separate data section and use them when building the bitcode. 1733 for (const auto &A : Args) { 1734 // Do not encode output and input. 1735 if (A->getOption().getID() == options::OPT_o || 1736 A->getOption().getID() == options::OPT_INPUT || 1737 A->getOption().getID() == options::OPT_x || 1738 A->getOption().getID() == options::OPT_fembed_bitcode || 1739 A->getOption().matches(options::OPT_W_Group)) 1740 continue; 1741 ArgStringList ASL; 1742 A->render(Args, ASL); 1743 for (const auto &arg : ASL) { 1744 StringRef ArgStr(arg); 1745 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1746 // using \00 to separate each commandline options. 1747 Opts.CmdArgs.push_back('\0'); 1748 } 1749 } 1750 1751 auto XRayInstrBundles = 1752 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1753 if (XRayInstrBundles.empty()) 1754 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1755 else 1756 for (const auto &A : XRayInstrBundles) 1757 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1758 Diags, Opts.XRayInstrumentationBundle); 1759 1760 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1761 StringRef Name = A->getValue(); 1762 if (Name == "full") { 1763 Opts.CFProtectionReturn = 1; 1764 Opts.CFProtectionBranch = 1; 1765 } else if (Name == "return") 1766 Opts.CFProtectionReturn = 1; 1767 else if (Name == "branch") 1768 Opts.CFProtectionBranch = 1; 1769 else if (Name != "none") { 1770 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1771 Success = false; 1772 } 1773 } 1774 1775 for (auto *A : 1776 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1777 CodeGenOptions::BitcodeFileToLink F; 1778 F.Filename = A->getValue(); 1779 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1780 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1781 // When linking CUDA bitcode, propagate function attributes so that 1782 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1783 F.PropagateAttrs = true; 1784 F.Internalize = true; 1785 } 1786 Opts.LinkBitcodeFiles.push_back(F); 1787 } 1788 1789 if (Args.getLastArg(OPT_femulated_tls) || 1790 Args.getLastArg(OPT_fno_emulated_tls)) { 1791 Opts.ExplicitEmulatedTLS = true; 1792 } 1793 1794 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1795 StringRef Val = A->getValue(); 1796 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1797 if (!Opts.FPDenormalMode.isValid()) 1798 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1799 } 1800 1801 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1802 StringRef Val = A->getValue(); 1803 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1804 if (!Opts.FP32DenormalMode.isValid()) 1805 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1806 } 1807 1808 // X86_32 has -fppc-struct-return and -freg-struct-return. 1809 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1810 if (Arg *A = 1811 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1812 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1813 // TODO: We might want to consider enabling these options on AIX in the 1814 // future. 1815 if (T.isOSAIX()) 1816 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1817 << A->getSpelling() << T.str(); 1818 1819 const Option &O = A->getOption(); 1820 if (O.matches(OPT_fpcc_struct_return) || 1821 O.matches(OPT_maix_struct_return)) { 1822 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1823 } else { 1824 assert(O.matches(OPT_freg_struct_return) || 1825 O.matches(OPT_msvr4_struct_return)); 1826 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1827 } 1828 } 1829 1830 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1831 !Args.hasArg(OPT_fvisibility))) 1832 Opts.IgnoreXCOFFVisibility = 1; 1833 1834 if (Arg *A = 1835 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1836 if (!T.isOSAIX()) 1837 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1838 << A->getSpelling() << T.str(); 1839 1840 const Option &O = A->getOption(); 1841 if (O.matches(OPT_mabi_EQ_vec_default)) 1842 Diags.Report(diag::err_aix_default_altivec_abi) 1843 << A->getSpelling() << T.str(); 1844 else { 1845 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1846 Opts.EnableAIXExtendedAltivecABI = 1; 1847 } 1848 } 1849 1850 bool NeedLocTracking = false; 1851 1852 if (!Opts.OptRecordFile.empty()) 1853 NeedLocTracking = true; 1854 1855 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1856 Opts.OptRecordPasses = A->getValue(); 1857 NeedLocTracking = true; 1858 } 1859 1860 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1861 Opts.OptRecordFormat = A->getValue(); 1862 NeedLocTracking = true; 1863 } 1864 1865 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1866 Opts.OptimizationRemarkPattern = 1867 GenerateOptimizationRemarkRegex(Diags, Args, A); 1868 NeedLocTracking = true; 1869 } 1870 1871 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1872 Opts.OptimizationRemarkMissedPattern = 1873 GenerateOptimizationRemarkRegex(Diags, Args, A); 1874 NeedLocTracking = true; 1875 } 1876 1877 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1878 Opts.OptimizationRemarkAnalysisPattern = 1879 GenerateOptimizationRemarkRegex(Diags, Args, A); 1880 NeedLocTracking = true; 1881 } 1882 1883 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1884 bool UsingProfile = UsingSampleProfile || 1885 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1886 1887 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1888 // An IR file will contain PGO as metadata 1889 IK.getLanguage() != Language::LLVM_IR) 1890 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1891 << "-fdiagnostics-show-hotness"; 1892 1893 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1894 if (auto *arg = 1895 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1896 auto ResultOrErr = 1897 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1898 1899 if (!ResultOrErr) { 1900 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1901 << "-fdiagnostics-hotness-threshold="; 1902 } else { 1903 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1904 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1905 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1906 !UsingProfile) 1907 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1908 << "-fdiagnostics-hotness-threshold="; 1909 } 1910 } 1911 1912 // If the user requested to use a sample profile for PGO, then the 1913 // backend will need to track source location information so the profile 1914 // can be incorporated into the IR. 1915 if (UsingSampleProfile) 1916 NeedLocTracking = true; 1917 1918 // If the user requested a flag that requires source locations available in 1919 // the backend, make sure that the backend tracks source location information. 1920 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1921 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1922 1923 // Parse -fsanitize-recover= arguments. 1924 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1925 parseSanitizerKinds("-fsanitize-recover=", 1926 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1927 Opts.SanitizeRecover); 1928 parseSanitizerKinds("-fsanitize-trap=", 1929 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1930 Opts.SanitizeTrap); 1931 1932 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1933 1934 if (Args.hasArg(options::OPT_ffinite_loops)) 1935 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1936 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1937 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1938 1939 return Success && Diags.getNumErrors() == NumErrorsBefore; 1940 } 1941 1942 bool CompilerInvocation::ParseCodeGenArgs( 1943 CompilerInvocation &Res, CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1944 DiagnosticsEngine &Diags, const llvm::Triple &T, 1945 const std::string &OutputFile, const LangOptions &LangOptsRef) { 1946 CodeGenOptions DummyOpts; 1947 1948 return RoundTrip( 1949 [&](CompilerInvocation &Res, ArgList &Args, DiagnosticsEngine &Diags) { 1950 Args.getLastArg(OPT_O0, OPT_O4, OPT_O, OPT_Ofast); 1951 return ParseCodeGenArgsImpl(Res.getCodeGenOpts(), Args, IK, Diags, T, 1952 OutputFile, LangOptsRef); 1953 }, 1954 [&](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 1955 StringAllocator SA) { 1956 GenerateCodeGenArgs(Res.getCodeGenOpts(), GeneratedArgs, SA, T, 1957 OutputFile, &LangOptsRef); 1958 }, 1959 [&DummyOpts](CompilerInvocation &Res) { 1960 std::swap(Res.CodeGenOpts, DummyOpts); 1961 }, 1962 Res, Args, Diags, "CodeGenOptions"); 1963 } 1964 1965 static void 1966 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1967 SmallVectorImpl<const char *> &Args, 1968 CompilerInvocation::StringAllocator SA) { 1969 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1970 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1971 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1972 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1973 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1974 MERGER, EXTRACTOR, TABLE_INDEX) \ 1975 GENERATE_OPTION_WITH_MARSHALLING( \ 1976 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1977 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1978 #include "clang/Driver/Options.inc" 1979 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1980 1981 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1982 GenerateArg(Args, OPT_show_includes, SA); 1983 1984 for (const auto &Dep : Opts.ExtraDeps) { 1985 switch (Dep.second) { 1986 case EDK_SanitizeBlacklist: 1987 // Sanitizer blacklist arguments are generated from LanguageOptions. 1988 continue; 1989 case EDK_ModuleFile: 1990 // Module file arguments are generated from FrontendOptions and 1991 // HeaderSearchOptions. 1992 continue; 1993 case EDK_ProfileList: 1994 GenerateArg(Args, OPT_fprofile_list_EQ, Dep.first, SA); 1995 break; 1996 case EDK_DepFileEntry: 1997 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1998 break; 1999 } 2000 } 2001 } 2002 2003 static bool ParseDependencyOutputArgsImpl( 2004 DependencyOutputOptions &Opts, ArgList &Args, 2005 DiagnosticsEngine &Diags, 2006 frontend::ActionKind Action, bool ShowLineMarkers) { 2007 unsigned NumErrorsBefore = Diags.getNumErrors(); 2008 bool Success = true; 2009 2010 DependencyOutputOptions &DependencyOutputOpts = Opts; 2011 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2012 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2013 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2014 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2015 MERGER, EXTRACTOR, TABLE_INDEX) \ 2016 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2017 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2018 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2019 MERGER, TABLE_INDEX) 2020 #include "clang/Driver/Options.inc" 2021 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2022 2023 if (Args.hasArg(OPT_show_includes)) { 2024 // Writing both /showIncludes and preprocessor output to stdout 2025 // would produce interleaved output, so use stderr for /showIncludes. 2026 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2027 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2028 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2029 else 2030 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2031 } else { 2032 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2033 } 2034 2035 // Add sanitizer blacklists as extra dependencies. 2036 // They won't be discovered by the regular preprocessor, so 2037 // we let make / ninja to know about this implicit dependency. 2038 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2039 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2040 StringRef Val = A->getValue(); 2041 if (Val.find('=') == StringRef::npos) 2042 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2043 } 2044 if (Opts.IncludeSystemHeaders) { 2045 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2046 StringRef Val = A->getValue(); 2047 if (Val.find('=') == StringRef::npos) 2048 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2049 } 2050 } 2051 } 2052 2053 // -fprofile-list= dependencies. 2054 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2055 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2056 2057 // Propagate the extra dependencies. 2058 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2059 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2060 2061 // Only the -fmodule-file=<file> form. 2062 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2063 StringRef Val = A->getValue(); 2064 if (Val.find('=') == StringRef::npos) 2065 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2066 } 2067 2068 return Success && Diags.getNumErrors() == NumErrorsBefore; 2069 } 2070 2071 static bool ParseDependencyOutputArgs(CompilerInvocation &Res, 2072 DependencyOutputOptions &Opts, 2073 ArgList &Args, DiagnosticsEngine &Diags, 2074 frontend::ActionKind Action, 2075 bool ShowLineMarkers) { 2076 DependencyOutputOptions DummyOpts; 2077 2078 return RoundTrip( 2079 [Action, ShowLineMarkers](CompilerInvocation &Res, ArgList &Args, 2080 DiagnosticsEngine &Diags) { 2081 return ParseDependencyOutputArgsImpl(Res.getDependencyOutputOpts(), 2082 Args, Diags, Action, 2083 ShowLineMarkers); 2084 }, 2085 [&Args](CompilerInvocation &Res, 2086 SmallVectorImpl<const char *> &GeneratedArgs, 2087 CompilerInvocation::StringAllocator SA) { 2088 GenerateDependencyOutputArgs(Res.getDependencyOutputOpts(), 2089 GeneratedArgs, SA); 2090 // We're querying sanitizer blacklist and module file arguments, but 2091 // they are generated from LanguageOptions and HeaderSearchOptions. 2092 // Let's satisfy RoundTrip by generating them ourselves for now. 2093 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2094 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2095 StringRef Val = A->getValue(); 2096 if (Val.find('=') == StringRef::npos) 2097 GenerateArg(GeneratedArgs, OPT_fsanitize_blacklist, Val, SA); 2098 } 2099 if (Res.getDependencyOutputOpts().IncludeSystemHeaders) { 2100 for (const auto *A : 2101 Args.filtered(OPT_fsanitize_system_blacklist)) { 2102 StringRef Val = A->getValue(); 2103 if (Val.find('=') == StringRef::npos) 2104 GenerateArg(GeneratedArgs, OPT_fsanitize_system_blacklist, Val, 2105 SA); 2106 } 2107 } 2108 } 2109 2110 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2111 StringRef Val = A->getValue(); 2112 if (Val.find('=') == StringRef::npos) 2113 GenerateArg(GeneratedArgs, OPT_fmodule_file, Val, SA); 2114 } 2115 }, 2116 [&DummyOpts](CompilerInvocation &Res) { 2117 std::swap(Res.getDependencyOutputOpts(), DummyOpts); 2118 }, 2119 Res, Args, Diags, "DependencyOutputOptions"); 2120 } 2121 2122 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2123 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2124 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2125 // Support both clang's -f[no-]color-diagnostics and gcc's 2126 // -f[no-]diagnostics-colors[=never|always|auto]. 2127 enum { 2128 Colors_On, 2129 Colors_Off, 2130 Colors_Auto 2131 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2132 for (auto *A : Args) { 2133 const Option &O = A->getOption(); 2134 if (O.matches(options::OPT_fcolor_diagnostics) || 2135 O.matches(options::OPT_fdiagnostics_color)) { 2136 ShowColors = Colors_On; 2137 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2138 O.matches(options::OPT_fno_diagnostics_color)) { 2139 ShowColors = Colors_Off; 2140 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2141 StringRef Value(A->getValue()); 2142 if (Value == "always") 2143 ShowColors = Colors_On; 2144 else if (Value == "never") 2145 ShowColors = Colors_Off; 2146 else if (Value == "auto") 2147 ShowColors = Colors_Auto; 2148 } 2149 } 2150 return ShowColors == Colors_On || 2151 (ShowColors == Colors_Auto && 2152 llvm::sys::Process::StandardErrHasColors()); 2153 } 2154 2155 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2156 DiagnosticsEngine &Diags) { 2157 bool Success = true; 2158 for (const auto &Prefix : VerifyPrefixes) { 2159 // Every prefix must start with a letter and contain only alphanumeric 2160 // characters, hyphens, and underscores. 2161 auto BadChar = llvm::find_if(Prefix, [](char C) { 2162 return !isAlphanumeric(C) && C != '-' && C != '_'; 2163 }); 2164 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2165 Success = false; 2166 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2167 Diags.Report(diag::note_drv_verify_prefix_spelling); 2168 } 2169 } 2170 return Success; 2171 } 2172 2173 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2174 SmallVectorImpl<const char *> &Args, 2175 CompilerInvocation::StringAllocator SA) { 2176 const FileSystemOptions &FileSystemOpts = Opts; 2177 2178 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2179 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2180 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2181 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2182 MERGER, EXTRACTOR, TABLE_INDEX) \ 2183 GENERATE_OPTION_WITH_MARSHALLING( \ 2184 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2185 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2186 #include "clang/Driver/Options.inc" 2187 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2188 } 2189 2190 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2191 DiagnosticsEngine &Diags) { 2192 FileSystemOptions &FileSystemOpts = Opts; 2193 bool Success = true; 2194 2195 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2196 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2197 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2198 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2199 MERGER, EXTRACTOR, TABLE_INDEX) \ 2200 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2201 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2202 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2203 MERGER, TABLE_INDEX) 2204 #include "clang/Driver/Options.inc" 2205 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2206 2207 return Success; 2208 } 2209 2210 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2211 SmallVectorImpl<const char *> &Args, 2212 CompilerInvocation::StringAllocator SA) { 2213 const MigratorOptions &MigratorOpts = Opts; 2214 2215 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2216 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2217 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2218 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2219 MERGER, EXTRACTOR, TABLE_INDEX) \ 2220 GENERATE_OPTION_WITH_MARSHALLING( \ 2221 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2222 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2223 #include "clang/Driver/Options.inc" 2224 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2225 } 2226 2227 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2228 DiagnosticsEngine &Diags) { 2229 MigratorOptions &MigratorOpts = Opts; 2230 bool Success = true; 2231 2232 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2233 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2234 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2235 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2236 MERGER, EXTRACTOR, TABLE_INDEX) \ 2237 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2238 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2239 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2240 MERGER, TABLE_INDEX) 2241 #include "clang/Driver/Options.inc" 2242 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2243 2244 return Success; 2245 } 2246 2247 void CompilerInvocation::GenerateDiagnosticArgs( 2248 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2249 StringAllocator SA, bool DefaultDiagColor) { 2250 const DiagnosticOptions *DiagnosticOpts = &Opts; 2251 #define DIAG_OPTION_WITH_MARSHALLING( \ 2252 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2253 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2254 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2255 MERGER, EXTRACTOR, TABLE_INDEX) \ 2256 GENERATE_OPTION_WITH_MARSHALLING( \ 2257 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2258 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2259 #include "clang/Driver/Options.inc" 2260 #undef DIAG_OPTION_WITH_MARSHALLING 2261 2262 if (!Opts.DiagnosticSerializationFile.empty()) 2263 GenerateArg(Args, OPT_diagnostic_serialized_file, 2264 Opts.DiagnosticSerializationFile, SA); 2265 2266 if (Opts.ShowColors) 2267 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2268 2269 if (Opts.VerifyDiagnostics && 2270 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2271 GenerateArg(Args, OPT_verify, SA); 2272 2273 for (const auto &Prefix : Opts.VerifyPrefixes) 2274 if (Prefix != "expected") 2275 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2276 2277 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2278 if (VIU == DiagnosticLevelMask::None) { 2279 // This is the default, don't generate anything. 2280 } else if (VIU == DiagnosticLevelMask::All) { 2281 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2282 } else { 2283 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2284 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2285 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2286 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2287 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2288 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2289 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2290 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2291 } 2292 2293 for (const auto &Warning : Opts.Warnings) { 2294 // This option is automatically generated from UndefPrefixes. 2295 if (Warning == "undef-prefix") 2296 continue; 2297 Args.push_back(SA(StringRef("-W") + Warning)); 2298 } 2299 2300 for (const auto &Remark : Opts.Remarks) 2301 Args.push_back(SA(StringRef("-R") + Remark)); 2302 } 2303 2304 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2305 DiagnosticsEngine *Diags, 2306 bool DefaultDiagColor) { 2307 Optional<DiagnosticsEngine> IgnoringDiags; 2308 if (!Diags) { 2309 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2310 new IgnoringDiagConsumer()); 2311 Diags = &*IgnoringDiags; 2312 } 2313 2314 // The key paths of diagnostic options defined in Options.td start with 2315 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2316 DiagnosticOptions *DiagnosticOpts = &Opts; 2317 bool Success = true; 2318 2319 #define DIAG_OPTION_WITH_MARSHALLING( \ 2320 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2321 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2322 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2323 MERGER, EXTRACTOR, TABLE_INDEX) \ 2324 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2325 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2326 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2327 MERGER, TABLE_INDEX) 2328 #include "clang/Driver/Options.inc" 2329 #undef DIAG_OPTION_WITH_MARSHALLING 2330 2331 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2332 2333 if (Arg *A = 2334 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2335 Opts.DiagnosticSerializationFile = A->getValue(); 2336 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2337 2338 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2339 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2340 if (Args.hasArg(OPT_verify)) 2341 Opts.VerifyPrefixes.push_back("expected"); 2342 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2343 // then sort it to prepare for fast lookup using std::binary_search. 2344 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2345 Opts.VerifyDiagnostics = false; 2346 Success = false; 2347 } 2348 else 2349 llvm::sort(Opts.VerifyPrefixes); 2350 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2351 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2352 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2353 *Diags, DiagMask); 2354 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2355 DiagMask = DiagnosticLevelMask::All; 2356 Opts.setVerifyIgnoreUnexpected(DiagMask); 2357 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2358 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2359 Diags->Report(diag::warn_ignoring_ftabstop_value) 2360 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2361 } 2362 2363 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2364 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2365 2366 return Success; 2367 } 2368 2369 bool CompilerInvocation::ParseDiagnosticArgsRoundTrip(CompilerInvocation &Res, 2370 DiagnosticOptions &Opts, 2371 ArgList &Args, 2372 DiagnosticsEngine *Diags, 2373 bool DefaultDiagColor) { 2374 IntrusiveRefCntPtr<DiagnosticOptions> DummyOpts(new DiagnosticOptions); 2375 2376 return RoundTrip( 2377 [DefaultDiagColor](CompilerInvocation &Res, ArgList &Args, 2378 DiagnosticsEngine &Diags) { 2379 // Query the options might not get queried properly during parsing, but 2380 // should be generated from DiagnosticOptions. 2381 2382 Args.getLastArg(OPT_fcolor_diagnostics); 2383 Args.getLastArg(OPT_fno_color_diagnostics); 2384 Args.getLastArg(OPT_fdiagnostics_color); 2385 Args.getLastArg(OPT_fno_diagnostics_color); 2386 Args.getLastArg(OPT_fdiagnostics_color_EQ); 2387 2388 for (auto *A : Args.filtered(OPT_W_Group)) 2389 Args.getLastArg(A->getOption().getID()); 2390 for (auto *A : Args.filtered(OPT_R_Group)) 2391 Args.getLastArg(A->getOption().getID()); 2392 2393 return clang::ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2394 DefaultDiagColor); 2395 }, 2396 [DefaultDiagColor](CompilerInvocation &Res, 2397 SmallVectorImpl<const char *> &Args, 2398 CompilerInvocation::StringAllocator SA) { 2399 GenerateDiagnosticArgs(Res.getDiagnosticOpts(), Args, SA, 2400 DefaultDiagColor); 2401 }, 2402 [&DummyOpts](CompilerInvocation &Res) { 2403 Res.DiagnosticOpts.swap(DummyOpts); 2404 }, 2405 Res, Args, *Diags, "DiagnosticOptions"); 2406 } 2407 2408 /// Parse the argument to the -ftest-module-file-extension 2409 /// command-line argument. 2410 /// 2411 /// \returns true on error, false on success. 2412 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2413 std::string &BlockName, 2414 unsigned &MajorVersion, 2415 unsigned &MinorVersion, 2416 bool &Hashed, 2417 std::string &UserInfo) { 2418 SmallVector<StringRef, 5> Args; 2419 Arg.split(Args, ':', 5); 2420 if (Args.size() < 5) 2421 return true; 2422 2423 BlockName = std::string(Args[0]); 2424 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2425 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2426 if (Args[3].getAsInteger(2, Hashed)) return true; 2427 if (Args.size() > 4) 2428 UserInfo = std::string(Args[4]); 2429 return false; 2430 } 2431 2432 /// Return a table that associates command line option specifiers with the 2433 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2434 /// intentionally missing, as this case is handled separately from other 2435 /// frontend options. 2436 static const auto &getFrontendActionTable() { 2437 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2438 {frontend::ASTDeclList, OPT_ast_list}, 2439 2440 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2441 {frontend::ASTDump, OPT_ast_dump_all}, 2442 {frontend::ASTDump, OPT_ast_dump_EQ}, 2443 {frontend::ASTDump, OPT_ast_dump}, 2444 {frontend::ASTDump, OPT_ast_dump_lookups}, 2445 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2446 2447 {frontend::ASTPrint, OPT_ast_print}, 2448 {frontend::ASTView, OPT_ast_view}, 2449 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2450 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2451 {frontend::DumpTokens, OPT_dump_tokens}, 2452 {frontend::EmitAssembly, OPT_S}, 2453 {frontend::EmitBC, OPT_emit_llvm_bc}, 2454 {frontend::EmitHTML, OPT_emit_html}, 2455 {frontend::EmitLLVM, OPT_emit_llvm}, 2456 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2457 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2458 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2459 {frontend::EmitObj, OPT_emit_obj}, 2460 2461 {frontend::FixIt, OPT_fixit_EQ}, 2462 {frontend::FixIt, OPT_fixit}, 2463 2464 {frontend::GenerateModule, OPT_emit_module}, 2465 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2466 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2467 {frontend::GeneratePCH, OPT_emit_pch}, 2468 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2469 {frontend::InitOnly, OPT_init_only}, 2470 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2471 {frontend::ModuleFileInfo, OPT_module_file_info}, 2472 {frontend::VerifyPCH, OPT_verify_pch}, 2473 {frontend::PrintPreamble, OPT_print_preamble}, 2474 {frontend::PrintPreprocessedInput, OPT_E}, 2475 {frontend::TemplightDump, OPT_templight_dump}, 2476 {frontend::RewriteMacros, OPT_rewrite_macros}, 2477 {frontend::RewriteObjC, OPT_rewrite_objc}, 2478 {frontend::RewriteTest, OPT_rewrite_test}, 2479 {frontend::RunAnalysis, OPT_analyze}, 2480 {frontend::MigrateSource, OPT_migrate}, 2481 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2482 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2483 OPT_print_dependency_directives_minimized_source}, 2484 }; 2485 2486 return Table; 2487 } 2488 2489 /// Maps command line option to frontend action. 2490 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2491 for (const auto &ActionOpt : getFrontendActionTable()) 2492 if (ActionOpt.second == Opt.getID()) 2493 return ActionOpt.first; 2494 2495 return None; 2496 } 2497 2498 /// Maps frontend action to command line option. 2499 static Optional<OptSpecifier> 2500 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2501 for (const auto &ActionOpt : getFrontendActionTable()) 2502 if (ActionOpt.first == ProgramAction) 2503 return OptSpecifier(ActionOpt.second); 2504 2505 return None; 2506 } 2507 2508 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2509 SmallVectorImpl<const char *> &Args, 2510 CompilerInvocation::StringAllocator SA, 2511 bool IsHeader) { 2512 const FrontendOptions &FrontendOpts = Opts; 2513 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2514 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2515 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2516 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2517 MERGER, EXTRACTOR, TABLE_INDEX) \ 2518 GENERATE_OPTION_WITH_MARSHALLING( \ 2519 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2520 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2521 #include "clang/Driver/Options.inc" 2522 #undef FRONTEND_OPTION_WITH_MARSHALLING 2523 2524 Optional<OptSpecifier> ProgramActionOpt = 2525 getProgramActionOpt(Opts.ProgramAction); 2526 2527 // Generating a simple flag covers most frontend actions. 2528 std::function<void()> GenerateProgramAction = [&]() { 2529 GenerateArg(Args, *ProgramActionOpt, SA); 2530 }; 2531 2532 if (!ProgramActionOpt) { 2533 // PluginAction is the only program action handled separately. 2534 assert(Opts.ProgramAction == frontend::PluginAction && 2535 "Frontend action without option."); 2536 GenerateProgramAction = [&]() { 2537 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2538 }; 2539 } 2540 2541 // FIXME: Simplify the complex 'AST dump' command line. 2542 if (Opts.ProgramAction == frontend::ASTDump) { 2543 GenerateProgramAction = [&]() { 2544 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2545 // marshalling infrastructure. 2546 2547 if (Opts.ASTDumpFormat != ADOF_Default) { 2548 StringRef Format; 2549 switch (Opts.ASTDumpFormat) { 2550 case ADOF_Default: 2551 llvm_unreachable("Default AST dump format."); 2552 case ADOF_JSON: 2553 Format = "json"; 2554 break; 2555 } 2556 2557 if (Opts.ASTDumpAll) 2558 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2559 if (Opts.ASTDumpDecls) 2560 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2561 } else { 2562 if (Opts.ASTDumpAll) 2563 GenerateArg(Args, OPT_ast_dump_all, SA); 2564 if (Opts.ASTDumpDecls) 2565 GenerateArg(Args, OPT_ast_dump, SA); 2566 } 2567 }; 2568 } 2569 2570 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2571 GenerateProgramAction = [&]() { 2572 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2573 }; 2574 } 2575 2576 GenerateProgramAction(); 2577 2578 for (const auto &PluginArgs : Opts.PluginArgs) 2579 for (const auto &PluginArg : PluginArgs.second) 2580 GenerateArg(Args, OPT_plugin_arg, PluginArgs.first + PluginArg, SA); 2581 2582 for (const auto &Ext : Opts.ModuleFileExtensions) { 2583 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) { 2584 std::string Buffer; 2585 llvm::raw_string_ostream OS(Buffer); 2586 OS << *TestExt; 2587 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, OS.str(), SA); 2588 } 2589 } 2590 2591 if (!Opts.CodeCompletionAt.FileName.empty()) 2592 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2593 SA); 2594 2595 for (const auto &Plugin : Opts.Plugins) 2596 GenerateArg(Args, OPT_load, Plugin, SA); 2597 2598 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2599 2600 for (const auto &ModuleFile : Opts.ModuleFiles) 2601 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2602 2603 if (Opts.AuxTargetCPU.hasValue()) 2604 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2605 2606 if (Opts.AuxTargetFeatures.hasValue()) 2607 for (const auto &Feature : *Opts.AuxTargetFeatures) 2608 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2609 2610 { 2611 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2612 StringRef ModuleMap = 2613 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2614 StringRef Header = IsHeader ? "-header" : ""; 2615 2616 StringRef Lang; 2617 switch (Opts.DashX.getLanguage()) { 2618 case Language::C: 2619 Lang = "c"; 2620 break; 2621 case Language::OpenCL: 2622 Lang = "cl"; 2623 break; 2624 case Language::CUDA: 2625 Lang = "cuda"; 2626 break; 2627 case Language::HIP: 2628 Lang = "hip"; 2629 break; 2630 case Language::CXX: 2631 Lang = "c++"; 2632 break; 2633 case Language::ObjC: 2634 Lang = "objective-c"; 2635 break; 2636 case Language::ObjCXX: 2637 Lang = "objective-c++"; 2638 break; 2639 case Language::RenderScript: 2640 Lang = "renderscript"; 2641 break; 2642 case Language::Asm: 2643 Lang = "assembler-with-cpp"; 2644 break; 2645 case Language::Unknown: 2646 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2647 "Generating -x argument for unknown language (not precompiled)."); 2648 Lang = "ast"; 2649 break; 2650 case Language::LLVM_IR: 2651 Lang = "ir"; 2652 break; 2653 } 2654 2655 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2656 } 2657 2658 // OPT_INPUT has a unique class, generate it directly. 2659 for (const auto &Input : Opts.Inputs) 2660 Args.push_back(SA(Input.getFile())); 2661 } 2662 2663 static bool ParseFrontendArgsImpl(FrontendOptions &Opts, ArgList &Args, 2664 DiagnosticsEngine &Diags, 2665 bool &IsHeaderFile) { 2666 FrontendOptions &FrontendOpts = Opts; 2667 bool Success = true; 2668 unsigned NumErrorsBefore = Diags.getNumErrors(); 2669 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2670 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2671 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2672 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2673 MERGER, EXTRACTOR, TABLE_INDEX) \ 2674 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2675 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2676 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2677 MERGER, TABLE_INDEX) 2678 #include "clang/Driver/Options.inc" 2679 #undef FRONTEND_OPTION_WITH_MARSHALLING 2680 2681 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2682 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2683 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2684 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2685 assert(ProgramAction && "Option specifier not in Action_Group."); 2686 2687 if (ProgramAction == frontend::ASTDump && 2688 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2689 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2690 .CaseLower("default", ADOF_Default) 2691 .CaseLower("json", ADOF_JSON) 2692 .Default(std::numeric_limits<unsigned>::max()); 2693 2694 if (Val != std::numeric_limits<unsigned>::max()) 2695 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2696 else { 2697 Diags.Report(diag::err_drv_invalid_value) 2698 << A->getAsString(Args) << A->getValue(); 2699 Opts.ASTDumpFormat = ADOF_Default; 2700 } 2701 } 2702 2703 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2704 Opts.FixItSuffix = A->getValue(); 2705 2706 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2707 StringRef ArgStr = 2708 Args.hasArg(OPT_interface_stub_version_EQ) 2709 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2710 : "experimental-ifs-v2"; 2711 if (ArgStr == "experimental-yaml-elf-v1" || 2712 ArgStr == "experimental-ifs-v1" || 2713 ArgStr == "experimental-tapi-elf-v1") { 2714 std::string ErrorMessage = 2715 "Invalid interface stub format: " + ArgStr.str() + 2716 " is deprecated."; 2717 Diags.Report(diag::err_drv_invalid_value) 2718 << "Must specify a valid interface stub format type, ie: " 2719 "-interface-stub-version=experimental-ifs-v2" 2720 << ErrorMessage; 2721 ProgramAction = frontend::ParseSyntaxOnly; 2722 } else if (!ArgStr.startswith("experimental-ifs-")) { 2723 std::string ErrorMessage = 2724 "Invalid interface stub format: " + ArgStr.str() + "."; 2725 Diags.Report(diag::err_drv_invalid_value) 2726 << "Must specify a valid interface stub format type, ie: " 2727 "-interface-stub-version=experimental-ifs-v2" 2728 << ErrorMessage; 2729 ProgramAction = frontend::ParseSyntaxOnly; 2730 } 2731 } 2732 2733 Opts.ProgramAction = *ProgramAction; 2734 } 2735 2736 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2737 Opts.Plugins.emplace_back(A->getValue(0)); 2738 Opts.ProgramAction = frontend::PluginAction; 2739 Opts.ActionName = A->getValue(); 2740 } 2741 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2742 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2743 2744 for (const std::string &Arg : 2745 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2746 std::string BlockName; 2747 unsigned MajorVersion; 2748 unsigned MinorVersion; 2749 bool Hashed; 2750 std::string UserInfo; 2751 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2752 MinorVersion, Hashed, UserInfo)) { 2753 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2754 2755 continue; 2756 } 2757 2758 // Add the testing module file extension. 2759 Opts.ModuleFileExtensions.push_back( 2760 std::make_shared<TestModuleFileExtension>( 2761 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2762 } 2763 2764 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2765 Opts.CodeCompletionAt = 2766 ParsedSourceLocation::FromString(A->getValue()); 2767 if (Opts.CodeCompletionAt.FileName.empty()) 2768 Diags.Report(diag::err_drv_invalid_value) 2769 << A->getAsString(Args) << A->getValue(); 2770 } 2771 2772 Opts.Plugins = Args.getAllArgValues(OPT_load); 2773 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2774 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2775 // Only the -fmodule-file=<file> form. 2776 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2777 StringRef Val = A->getValue(); 2778 if (Val.find('=') == StringRef::npos) 2779 Opts.ModuleFiles.push_back(std::string(Val)); 2780 } 2781 2782 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2783 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2784 << "-emit-module"; 2785 2786 if (Args.hasArg(OPT_aux_target_cpu)) 2787 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2788 if (Args.hasArg(OPT_aux_target_feature)) 2789 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2790 2791 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2792 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2793 Diags.Report(diag::err_drv_argument_not_allowed_with) 2794 << "ARC migration" << "ObjC migration"; 2795 } 2796 2797 InputKind DashX(Language::Unknown); 2798 if (const Arg *A = Args.getLastArg(OPT_x)) { 2799 StringRef XValue = A->getValue(); 2800 2801 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2802 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2803 bool Preprocessed = XValue.consume_back("-cpp-output"); 2804 bool ModuleMap = XValue.consume_back("-module-map"); 2805 IsHeaderFile = !Preprocessed && !ModuleMap && 2806 XValue != "precompiled-header" && 2807 XValue.consume_back("-header"); 2808 2809 // Principal languages. 2810 DashX = llvm::StringSwitch<InputKind>(XValue) 2811 .Case("c", Language::C) 2812 .Case("cl", Language::OpenCL) 2813 .Case("cuda", Language::CUDA) 2814 .Case("hip", Language::HIP) 2815 .Case("c++", Language::CXX) 2816 .Case("objective-c", Language::ObjC) 2817 .Case("objective-c++", Language::ObjCXX) 2818 .Case("renderscript", Language::RenderScript) 2819 .Default(Language::Unknown); 2820 2821 // "objc[++]-cpp-output" is an acceptable synonym for 2822 // "objective-c[++]-cpp-output". 2823 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2824 DashX = llvm::StringSwitch<InputKind>(XValue) 2825 .Case("objc", Language::ObjC) 2826 .Case("objc++", Language::ObjCXX) 2827 .Default(Language::Unknown); 2828 2829 // Some special cases cannot be combined with suffixes. 2830 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2831 DashX = llvm::StringSwitch<InputKind>(XValue) 2832 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2833 .Case("assembler-with-cpp", Language::Asm) 2834 .Cases("ast", "pcm", "precompiled-header", 2835 InputKind(Language::Unknown, InputKind::Precompiled)) 2836 .Case("ir", Language::LLVM_IR) 2837 .Default(Language::Unknown); 2838 2839 if (DashX.isUnknown()) 2840 Diags.Report(diag::err_drv_invalid_value) 2841 << A->getAsString(Args) << A->getValue(); 2842 2843 if (Preprocessed) 2844 DashX = DashX.getPreprocessed(); 2845 if (ModuleMap) 2846 DashX = DashX.withFormat(InputKind::ModuleMap); 2847 } 2848 2849 // '-' is the default input if none is given. 2850 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2851 Opts.Inputs.clear(); 2852 if (Inputs.empty()) 2853 Inputs.push_back("-"); 2854 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2855 InputKind IK = DashX; 2856 if (IK.isUnknown()) { 2857 IK = FrontendOptions::getInputKindForExtension( 2858 StringRef(Inputs[i]).rsplit('.').second); 2859 // FIXME: Warn on this? 2860 if (IK.isUnknown()) 2861 IK = Language::C; 2862 // FIXME: Remove this hack. 2863 if (i == 0) 2864 DashX = IK; 2865 } 2866 2867 bool IsSystem = false; 2868 2869 // The -emit-module action implicitly takes a module map. 2870 if (Opts.ProgramAction == frontend::GenerateModule && 2871 IK.getFormat() == InputKind::Source) { 2872 IK = IK.withFormat(InputKind::ModuleMap); 2873 IsSystem = Opts.IsSystemModule; 2874 } 2875 2876 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2877 } 2878 2879 Opts.DashX = DashX; 2880 2881 return Diags.getNumErrors() == NumErrorsBefore; 2882 } 2883 2884 static bool ParseFrontendArgs(CompilerInvocation &Res, FrontendOptions &Opts, 2885 ArgList &Args, DiagnosticsEngine &Diags, 2886 bool &IsHeaderFile) { 2887 FrontendOptions DummyOpts; 2888 2889 return RoundTrip( 2890 [&IsHeaderFile](CompilerInvocation &Res, ArgList &Args, 2891 DiagnosticsEngine &Diags) { 2892 // ParseFrontendArgsImpl handles frontend action without querying the 2893 // options. Let's do it now so RoundTrip considers us responsible for 2894 // generating it. 2895 for (const auto &Pair : getFrontendActionTable()) 2896 Args.hasArg(Pair.second); 2897 2898 return ParseFrontendArgsImpl(Res.getFrontendOpts(), Args, Diags, 2899 IsHeaderFile); 2900 }, 2901 [&IsHeaderFile](CompilerInvocation &Res, 2902 SmallVectorImpl<const char *> &Args, 2903 CompilerInvocation::StringAllocator SA) { 2904 GenerateFrontendArgs(Res.getFrontendOpts(), Args, SA, IsHeaderFile); 2905 }, 2906 [&DummyOpts](CompilerInvocation &Res) { 2907 std::swap(Res.getFrontendOpts(), DummyOpts); 2908 }, 2909 Res, Args, Diags, "FrontendOptions"); 2910 } 2911 2912 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2913 void *MainAddr) { 2914 std::string ClangExecutable = 2915 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2916 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2917 } 2918 2919 void CompilerInvocation::GenerateHeaderSearchArgs( 2920 HeaderSearchOptions &Opts, SmallVectorImpl<const char *> &Args, 2921 CompilerInvocation::StringAllocator SA) { 2922 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2923 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2924 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2925 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2926 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2927 MERGER, EXTRACTOR, TABLE_INDEX) \ 2928 GENERATE_OPTION_WITH_MARSHALLING( \ 2929 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2930 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2931 #include "clang/Driver/Options.inc" 2932 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2933 2934 if (Opts.UseLibcxx) 2935 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2936 2937 if (!Opts.ModuleCachePath.empty()) 2938 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2939 2940 for (const auto &File : Opts.PrebuiltModuleFiles) 2941 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2942 2943 for (const auto &Path : Opts.PrebuiltModulePaths) 2944 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2945 2946 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2947 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2948 2949 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2950 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2951 llvm::Optional<bool> IsFramework, 2952 llvm::Optional<bool> IgnoreSysRoot) { 2953 return llvm::find(Groups, Entry.Group) != Groups.end() && 2954 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2955 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2956 }; 2957 2958 auto It = Opts.UserEntries.begin(); 2959 auto End = Opts.UserEntries.end(); 2960 2961 // Add -I..., -F..., and -index-header-map options in order. 2962 for (; It < End && 2963 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2964 ++It) { 2965 OptSpecifier Opt = [It, Matches]() { 2966 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2967 return OPT_F; 2968 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2969 return OPT_I; 2970 if (Matches(*It, frontend::Angled, true, true)) 2971 return OPT_F; 2972 if (Matches(*It, frontend::Angled, false, true)) 2973 return OPT_I; 2974 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2975 }(); 2976 2977 if (It->Group == frontend::IndexHeaderMap) 2978 GenerateArg(Args, OPT_index_header_map, SA); 2979 GenerateArg(Args, Opt, It->Path, SA); 2980 }; 2981 2982 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2983 // have already been generated as "-I[xx]yy". If that's the case, their 2984 // position on command line was such that this has no semantic impact on 2985 // include paths. 2986 for (; It < End && 2987 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2988 ++It) { 2989 OptSpecifier Opt = 2990 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2991 GenerateArg(Args, Opt, It->Path, SA); 2992 } 2993 2994 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2995 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2996 // command line was such that this has no semantic impact on include paths. 2997 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2998 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2999 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3000 GenerateArg(Args, OPT_iquote, It->Path, SA); 3001 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3002 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3003 It->Path, SA); 3004 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3005 GenerateArg(Args, OPT_iframework, It->Path, SA); 3006 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3007 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3008 3009 // Add the paths for the various language specific isystem flags. 3010 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3011 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3012 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3013 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3014 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3015 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3016 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3017 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3018 3019 // Add the internal paths from a driver that detects standard include paths. 3020 // Note: Some paths that came from "-internal-isystem" arguments may have 3021 // already been generated as "-isystem". If that's the case, their position on 3022 // command line was such that this has no semantic impact on include paths. 3023 for (; It < End && 3024 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3025 ++It) { 3026 OptSpecifier Opt = It->Group == frontend::System 3027 ? OPT_internal_isystem 3028 : OPT_internal_externc_isystem; 3029 GenerateArg(Args, Opt, It->Path, SA); 3030 } 3031 3032 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3033 3034 // Add the path prefixes which are implicitly treated as being system headers. 3035 for (const auto &P : Opts.SystemHeaderPrefixes) { 3036 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3037 : OPT_no_system_header_prefix; 3038 GenerateArg(Args, Opt, P.Prefix, SA); 3039 } 3040 3041 for (const std::string &F : Opts.VFSOverlayFiles) 3042 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3043 } 3044 3045 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3046 DiagnosticsEngine &Diags, 3047 const std::string &WorkingDir) { 3048 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3049 bool Success = true; 3050 3051 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3052 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3053 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3054 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3055 MERGER, EXTRACTOR, TABLE_INDEX) \ 3056 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3057 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3058 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3059 MERGER, TABLE_INDEX) 3060 #include "clang/Driver/Options.inc" 3061 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3062 3063 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3064 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3065 3066 // Canonicalize -fmodules-cache-path before storing it. 3067 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3068 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3069 if (WorkingDir.empty()) 3070 llvm::sys::fs::make_absolute(P); 3071 else 3072 llvm::sys::fs::make_absolute(WorkingDir, P); 3073 } 3074 llvm::sys::path::remove_dots(P); 3075 Opts.ModuleCachePath = std::string(P.str()); 3076 3077 // Only the -fmodule-file=<name>=<file> form. 3078 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3079 StringRef Val = A->getValue(); 3080 if (Val.find('=') != StringRef::npos){ 3081 auto Split = Val.split('='); 3082 Opts.PrebuiltModuleFiles.insert( 3083 {std::string(Split.first), std::string(Split.second)}); 3084 } 3085 } 3086 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3087 Opts.AddPrebuiltModulePath(A->getValue()); 3088 3089 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3090 StringRef MacroDef = A->getValue(); 3091 Opts.ModulesIgnoreMacros.insert( 3092 llvm::CachedHashString(MacroDef.split('=').first)); 3093 } 3094 3095 // Add -I..., -F..., and -index-header-map options in order. 3096 bool IsIndexHeaderMap = false; 3097 bool IsSysrootSpecified = 3098 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3099 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3100 if (A->getOption().matches(OPT_index_header_map)) { 3101 // -index-header-map applies to the next -I or -F. 3102 IsIndexHeaderMap = true; 3103 continue; 3104 } 3105 3106 frontend::IncludeDirGroup Group = 3107 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3108 3109 bool IsFramework = A->getOption().matches(OPT_F); 3110 std::string Path = A->getValue(); 3111 3112 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3113 SmallString<32> Buffer; 3114 llvm::sys::path::append(Buffer, Opts.Sysroot, 3115 llvm::StringRef(A->getValue()).substr(1)); 3116 Path = std::string(Buffer.str()); 3117 } 3118 3119 Opts.AddPath(Path, Group, IsFramework, 3120 /*IgnoreSysroot*/ true); 3121 IsIndexHeaderMap = false; 3122 } 3123 3124 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3125 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3126 for (const auto *A : 3127 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3128 if (A->getOption().matches(OPT_iprefix)) 3129 Prefix = A->getValue(); 3130 else if (A->getOption().matches(OPT_iwithprefix)) 3131 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3132 else 3133 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3134 } 3135 3136 for (const auto *A : Args.filtered(OPT_idirafter)) 3137 Opts.AddPath(A->getValue(), frontend::After, false, true); 3138 for (const auto *A : Args.filtered(OPT_iquote)) 3139 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3140 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3141 Opts.AddPath(A->getValue(), frontend::System, false, 3142 !A->getOption().matches(OPT_iwithsysroot)); 3143 for (const auto *A : Args.filtered(OPT_iframework)) 3144 Opts.AddPath(A->getValue(), frontend::System, true, true); 3145 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3146 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3147 /*IgnoreSysRoot=*/false); 3148 3149 // Add the paths for the various language specific isystem flags. 3150 for (const auto *A : Args.filtered(OPT_c_isystem)) 3151 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3152 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3153 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3154 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3155 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3156 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3157 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3158 3159 // Add the internal paths from a driver that detects standard include paths. 3160 for (const auto *A : 3161 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3162 frontend::IncludeDirGroup Group = frontend::System; 3163 if (A->getOption().matches(OPT_internal_externc_isystem)) 3164 Group = frontend::ExternCSystem; 3165 Opts.AddPath(A->getValue(), Group, false, true); 3166 } 3167 3168 // Add the path prefixes which are implicitly treated as being system headers. 3169 for (const auto *A : 3170 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3171 Opts.AddSystemHeaderPrefix( 3172 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3173 3174 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3175 Opts.AddVFSOverlayFile(A->getValue()); 3176 3177 return Success; 3178 } 3179 3180 void CompilerInvocation::ParseHeaderSearchArgs(CompilerInvocation &Res, 3181 HeaderSearchOptions &Opts, 3182 ArgList &Args, 3183 DiagnosticsEngine &Diags, 3184 const std::string &WorkingDir) { 3185 auto DummyOpts = std::make_shared<HeaderSearchOptions>(); 3186 3187 RoundTrip( 3188 [&WorkingDir](CompilerInvocation &Res, ArgList &Args, 3189 DiagnosticsEngine &Diags) { 3190 return ::ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 3191 WorkingDir); 3192 }, 3193 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 3194 CompilerInvocation::StringAllocator SA) { 3195 GenerateHeaderSearchArgs(Res.getHeaderSearchOpts(), GeneratedArgs, SA); 3196 }, 3197 [&DummyOpts](CompilerInvocation &Res) { 3198 Res.HeaderSearchOpts.swap(DummyOpts); 3199 }, 3200 Res, Args, Diags, "HeaderSearchOptions"); 3201 } 3202 3203 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3204 const llvm::Triple &T, 3205 std::vector<std::string> &Includes, 3206 LangStandard::Kind LangStd) { 3207 // Set some properties which depend solely on the input kind; it would be nice 3208 // to move these to the language standard, and have the driver resolve the 3209 // input kind + language standard. 3210 // 3211 // FIXME: Perhaps a better model would be for a single source file to have 3212 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3213 // simultaneously active? 3214 if (IK.getLanguage() == Language::Asm) { 3215 Opts.AsmPreprocessor = 1; 3216 } else if (IK.isObjectiveC()) { 3217 Opts.ObjC = 1; 3218 } 3219 3220 if (LangStd == LangStandard::lang_unspecified) { 3221 // Based on the base language, pick one. 3222 switch (IK.getLanguage()) { 3223 case Language::Unknown: 3224 case Language::LLVM_IR: 3225 llvm_unreachable("Invalid input kind!"); 3226 case Language::OpenCL: 3227 LangStd = LangStandard::lang_opencl10; 3228 break; 3229 case Language::CUDA: 3230 LangStd = LangStandard::lang_cuda; 3231 break; 3232 case Language::Asm: 3233 case Language::C: 3234 #if defined(CLANG_DEFAULT_STD_C) 3235 LangStd = CLANG_DEFAULT_STD_C; 3236 #else 3237 // The PS4 uses C99 as the default C standard. 3238 if (T.isPS4()) 3239 LangStd = LangStandard::lang_gnu99; 3240 else 3241 LangStd = LangStandard::lang_gnu17; 3242 #endif 3243 break; 3244 case Language::ObjC: 3245 #if defined(CLANG_DEFAULT_STD_C) 3246 LangStd = CLANG_DEFAULT_STD_C; 3247 #else 3248 LangStd = LangStandard::lang_gnu11; 3249 #endif 3250 break; 3251 case Language::CXX: 3252 case Language::ObjCXX: 3253 #if defined(CLANG_DEFAULT_STD_CXX) 3254 LangStd = CLANG_DEFAULT_STD_CXX; 3255 #else 3256 LangStd = LangStandard::lang_gnucxx14; 3257 #endif 3258 break; 3259 case Language::RenderScript: 3260 LangStd = LangStandard::lang_c99; 3261 break; 3262 case Language::HIP: 3263 LangStd = LangStandard::lang_hip; 3264 break; 3265 } 3266 } 3267 3268 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3269 Opts.LangStd = LangStd; 3270 Opts.LineComment = Std.hasLineComments(); 3271 Opts.C99 = Std.isC99(); 3272 Opts.C11 = Std.isC11(); 3273 Opts.C17 = Std.isC17(); 3274 Opts.C2x = Std.isC2x(); 3275 Opts.CPlusPlus = Std.isCPlusPlus(); 3276 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3277 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3278 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3279 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3280 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3281 Opts.GNUMode = Std.isGNUMode(); 3282 Opts.GNUCVersion = 0; 3283 Opts.HexFloats = Std.hasHexFloats(); 3284 Opts.ImplicitInt = Std.hasImplicitInt(); 3285 3286 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3287 3288 // Set OpenCL Version. 3289 Opts.OpenCL = Std.isOpenCL(); 3290 if (LangStd == LangStandard::lang_opencl10) 3291 Opts.OpenCLVersion = 100; 3292 else if (LangStd == LangStandard::lang_opencl11) 3293 Opts.OpenCLVersion = 110; 3294 else if (LangStd == LangStandard::lang_opencl12) 3295 Opts.OpenCLVersion = 120; 3296 else if (LangStd == LangStandard::lang_opencl20) 3297 Opts.OpenCLVersion = 200; 3298 else if (LangStd == LangStandard::lang_opencl30) 3299 Opts.OpenCLVersion = 300; 3300 else if (LangStd == LangStandard::lang_openclcpp) 3301 Opts.OpenCLCPlusPlusVersion = 100; 3302 3303 // OpenCL has some additional defaults. 3304 if (Opts.OpenCL) { 3305 Opts.AltiVec = 0; 3306 Opts.ZVector = 0; 3307 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3308 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3309 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3310 Opts.OpenCLGenericAddressSpace = 3311 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3312 3313 // Include default header file for OpenCL. 3314 if (Opts.IncludeDefaultHeader) { 3315 if (Opts.DeclareOpenCLBuiltins) { 3316 // Only include base header file for builtin types and constants. 3317 Includes.push_back("opencl-c-base.h"); 3318 } else { 3319 Includes.push_back("opencl-c.h"); 3320 } 3321 } 3322 } 3323 3324 Opts.HIP = IK.getLanguage() == Language::HIP; 3325 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3326 if (Opts.HIP) { 3327 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3328 // fuses multiplication/addition instructions without contract flag from 3329 // device library functions in LLVM bitcode, which causes accuracy loss in 3330 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3331 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3332 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3333 // FP contract option is used to allow fuse across statements in frontend 3334 // whereas respecting contract flag in backend. 3335 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3336 } else if (Opts.CUDA) { 3337 // Allow fuse across statements disregarding pragmas. 3338 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3339 } 3340 3341 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3342 3343 // OpenCL and C++ both have bool, true, false keywords. 3344 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3345 3346 // OpenCL has half keyword 3347 Opts.Half = Opts.OpenCL; 3348 } 3349 3350 /// Check if input file kind and language standard are compatible. 3351 static bool IsInputCompatibleWithStandard(InputKind IK, 3352 const LangStandard &S) { 3353 switch (IK.getLanguage()) { 3354 case Language::Unknown: 3355 case Language::LLVM_IR: 3356 llvm_unreachable("should not parse language flags for this input"); 3357 3358 case Language::C: 3359 case Language::ObjC: 3360 case Language::RenderScript: 3361 return S.getLanguage() == Language::C; 3362 3363 case Language::OpenCL: 3364 return S.getLanguage() == Language::OpenCL; 3365 3366 case Language::CXX: 3367 case Language::ObjCXX: 3368 return S.getLanguage() == Language::CXX; 3369 3370 case Language::CUDA: 3371 // FIXME: What -std= values should be permitted for CUDA compilations? 3372 return S.getLanguage() == Language::CUDA || 3373 S.getLanguage() == Language::CXX; 3374 3375 case Language::HIP: 3376 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3377 3378 case Language::Asm: 3379 // Accept (and ignore) all -std= values. 3380 // FIXME: The -std= value is not ignored; it affects the tokenization 3381 // and preprocessing rules if we're preprocessing this asm input. 3382 return true; 3383 } 3384 3385 llvm_unreachable("unexpected input language"); 3386 } 3387 3388 /// Get language name for given input kind. 3389 static const StringRef GetInputKindName(InputKind IK) { 3390 switch (IK.getLanguage()) { 3391 case Language::C: 3392 return "C"; 3393 case Language::ObjC: 3394 return "Objective-C"; 3395 case Language::CXX: 3396 return "C++"; 3397 case Language::ObjCXX: 3398 return "Objective-C++"; 3399 case Language::OpenCL: 3400 return "OpenCL"; 3401 case Language::CUDA: 3402 return "CUDA"; 3403 case Language::RenderScript: 3404 return "RenderScript"; 3405 case Language::HIP: 3406 return "HIP"; 3407 3408 case Language::Asm: 3409 return "Asm"; 3410 case Language::LLVM_IR: 3411 return "LLVM IR"; 3412 3413 case Language::Unknown: 3414 break; 3415 } 3416 llvm_unreachable("unknown input language"); 3417 } 3418 3419 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3420 SmallVectorImpl<const char *> &Args, 3421 StringAllocator SA, 3422 const llvm::Triple &T) { 3423 OptSpecifier StdOpt; 3424 switch (Opts.LangStd) { 3425 case LangStandard::lang_opencl10: 3426 case LangStandard::lang_opencl11: 3427 case LangStandard::lang_opencl12: 3428 case LangStandard::lang_opencl20: 3429 case LangStandard::lang_opencl30: 3430 case LangStandard::lang_openclcpp: 3431 StdOpt = OPT_cl_std_EQ; 3432 break; 3433 default: 3434 StdOpt = OPT_std_EQ; 3435 break; 3436 } 3437 3438 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3439 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3440 3441 if (Opts.IncludeDefaultHeader) 3442 GenerateArg(Args, OPT_finclude_default_header, SA); 3443 if (Opts.DeclareOpenCLBuiltins) 3444 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3445 3446 const LangOptions *LangOpts = &Opts; 3447 3448 #define LANG_OPTION_WITH_MARSHALLING( \ 3449 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3450 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3451 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3452 MERGER, EXTRACTOR, TABLE_INDEX) \ 3453 GENERATE_OPTION_WITH_MARSHALLING( \ 3454 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3455 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3456 #include "clang/Driver/Options.inc" 3457 #undef LANG_OPTION_WITH_MARSHALLING 3458 3459 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3460 3461 if (Opts.ObjC) { 3462 std::string Buffer; 3463 llvm::raw_string_ostream Stream(Buffer); 3464 Stream << Opts.ObjCRuntime; 3465 GenerateArg(Args, OPT_fobjc_runtime_EQ, Stream.str(), SA); 3466 3467 if (Opts.GC == LangOptions::GCOnly) 3468 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3469 else if (Opts.GC == LangOptions::HybridGC) 3470 GenerateArg(Args, OPT_fobjc_gc, SA); 3471 else if (Opts.ObjCAutoRefCount == 1) 3472 GenerateArg(Args, OPT_fobjc_arc, SA); 3473 3474 if (Opts.ObjCWeakRuntime) 3475 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3476 3477 if (Opts.ObjCWeak) 3478 GenerateArg(Args, OPT_fobjc_weak, SA); 3479 3480 if (Opts.ObjCSubscriptingLegacyRuntime) 3481 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3482 } 3483 3484 if (Opts.GNUCVersion != 0) { 3485 unsigned Major = Opts.GNUCVersion / 100 / 100; 3486 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3487 unsigned Patch = Opts.GNUCVersion % 100; 3488 GenerateArg(Args, OPT_fgnuc_version_EQ, 3489 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3490 } 3491 3492 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3493 GenerateArg(Args, OPT_ftrapv, SA); 3494 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3495 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3496 GenerateArg(Args, OPT_fwrapv, SA); 3497 } 3498 3499 if (Opts.MSCompatibilityVersion != 0) { 3500 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3501 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3502 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3503 GenerateArg(Args, OPT_fms_compatibility_version, 3504 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3505 } 3506 3507 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3508 if (!Opts.Trigraphs) 3509 GenerateArg(Args, OPT_fno_trigraphs, SA); 3510 } else { 3511 if (Opts.Trigraphs) 3512 GenerateArg(Args, OPT_ftrigraphs, SA); 3513 } 3514 3515 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3516 GenerateArg(Args, OPT_fblocks, SA); 3517 3518 if (Opts.ConvergentFunctions && 3519 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3520 GenerateArg(Args, OPT_fconvergent_functions, SA); 3521 3522 if (Opts.NoBuiltin && !Opts.Freestanding) 3523 GenerateArg(Args, OPT_fno_builtin, SA); 3524 3525 if (!Opts.NoBuiltin) 3526 for (const auto &Func : Opts.NoBuiltinFuncs) 3527 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3528 3529 if (Opts.LongDoubleSize == 128) 3530 GenerateArg(Args, OPT_mlong_double_128, SA); 3531 else if (Opts.LongDoubleSize == 64) 3532 GenerateArg(Args, OPT_mlong_double_64, SA); 3533 3534 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3535 3536 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3537 // '-fopenmp-targets='. 3538 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3539 GenerateArg(Args, OPT_fopenmp, SA); 3540 3541 if (Opts.OpenMP != 50) 3542 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3543 3544 if (!Opts.OpenMPUseTLS) 3545 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3546 3547 if (Opts.OpenMPIsDevice) 3548 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3549 3550 if (Opts.OpenMPIRBuilder) 3551 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3552 } 3553 3554 if (Opts.OpenMPSimd) { 3555 GenerateArg(Args, OPT_fopenmp_simd, SA); 3556 3557 if (Opts.OpenMP != 50) 3558 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3559 } 3560 3561 if (Opts.OpenMPCUDANumSMs != 0) 3562 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3563 Twine(Opts.OpenMPCUDANumSMs), SA); 3564 3565 if (Opts.OpenMPCUDABlocksPerSM != 0) 3566 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3567 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3568 3569 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3570 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3571 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3572 3573 if (!Opts.OMPTargetTriples.empty()) { 3574 std::string Targets; 3575 llvm::raw_string_ostream OS(Targets); 3576 llvm::interleave( 3577 Opts.OMPTargetTriples, OS, 3578 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3579 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3580 } 3581 3582 if (!Opts.OMPHostIRFile.empty()) 3583 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3584 3585 if (Opts.OpenMPCUDAMode) 3586 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3587 3588 if (Opts.OpenMPCUDATargetParallel) 3589 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3590 3591 if (Opts.OpenMPCUDAForceFullRuntime) 3592 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3593 3594 // The arguments used to set 'Optimize' and 'OptimizeSize' will be generated 3595 // by CodeGenOptions. 3596 3597 if (Opts.NoInlineDefine && Opts.Optimize) 3598 GenerateArg(Args, OPT_fno_inline, SA); 3599 3600 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3601 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3602 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3603 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3604 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3605 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3606 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3607 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3608 3609 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3610 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3611 3612 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3613 for (const std::string &F : Opts.SanitizerBlacklistFiles) 3614 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3615 3616 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3617 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3618 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3619 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3620 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3621 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3622 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3623 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3624 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3625 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3626 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3627 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3628 3629 if (Opts.getSignReturnAddressScope() == 3630 LangOptions::SignReturnAddressScopeKind::All) 3631 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3632 else if (Opts.getSignReturnAddressScope() == 3633 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3634 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3635 3636 if (Opts.getSignReturnAddressKey() == 3637 LangOptions::SignReturnAddressKeyKind::BKey) 3638 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3639 } 3640 3641 bool CompilerInvocation::ParseLangArgsImpl(LangOptions &Opts, ArgList &Args, 3642 InputKind IK, const llvm::Triple &T, 3643 std::vector<std::string> &Includes, 3644 DiagnosticsEngine &Diags) { 3645 unsigned NumErrorsBefore = Diags.getNumErrors(); 3646 3647 // FIXME: Cleanup per-file based stuff. 3648 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3649 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3650 LangStd = LangStandard::getLangKind(A->getValue()); 3651 if (LangStd == LangStandard::lang_unspecified) { 3652 Diags.Report(diag::err_drv_invalid_value) 3653 << A->getAsString(Args) << A->getValue(); 3654 // Report supported standards with short description. 3655 for (unsigned KindValue = 0; 3656 KindValue != LangStandard::lang_unspecified; 3657 ++KindValue) { 3658 const LangStandard &Std = LangStandard::getLangStandardForKind( 3659 static_cast<LangStandard::Kind>(KindValue)); 3660 if (IsInputCompatibleWithStandard(IK, Std)) { 3661 auto Diag = Diags.Report(diag::note_drv_use_standard); 3662 Diag << Std.getName() << Std.getDescription(); 3663 unsigned NumAliases = 0; 3664 #define LANGSTANDARD(id, name, lang, desc, features) 3665 #define LANGSTANDARD_ALIAS(id, alias) \ 3666 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3667 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3668 #include "clang/Basic/LangStandards.def" 3669 Diag << NumAliases; 3670 #define LANGSTANDARD(id, name, lang, desc, features) 3671 #define LANGSTANDARD_ALIAS(id, alias) \ 3672 if (KindValue == LangStandard::lang_##id) Diag << alias; 3673 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3674 #include "clang/Basic/LangStandards.def" 3675 } 3676 } 3677 } else { 3678 // Valid standard, check to make sure language and standard are 3679 // compatible. 3680 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3681 if (!IsInputCompatibleWithStandard(IK, Std)) { 3682 Diags.Report(diag::err_drv_argument_not_allowed_with) 3683 << A->getAsString(Args) << GetInputKindName(IK); 3684 } 3685 } 3686 } 3687 3688 // -cl-std only applies for OpenCL language standards. 3689 // Override the -std option in this case. 3690 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3691 LangStandard::Kind OpenCLLangStd 3692 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3693 .Cases("cl", "CL", LangStandard::lang_opencl10) 3694 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3695 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3696 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3697 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3698 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3699 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3700 .Default(LangStandard::lang_unspecified); 3701 3702 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3703 Diags.Report(diag::err_drv_invalid_value) 3704 << A->getAsString(Args) << A->getValue(); 3705 } 3706 else 3707 LangStd = OpenCLLangStd; 3708 } 3709 3710 // These need to be parsed now. They are used to set OpenCL defaults. 3711 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3712 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3713 3714 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3715 3716 // The key paths of codegen options defined in Options.td start with 3717 // "LangOpts->". Let's provide the expected variable name and type. 3718 LangOptions *LangOpts = &Opts; 3719 bool Success = true; 3720 3721 #define LANG_OPTION_WITH_MARSHALLING( \ 3722 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3723 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3724 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3725 MERGER, EXTRACTOR, TABLE_INDEX) \ 3726 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3727 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3728 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3729 MERGER, TABLE_INDEX) 3730 #include "clang/Driver/Options.inc" 3731 #undef LANG_OPTION_WITH_MARSHALLING 3732 3733 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3734 StringRef Name = A->getValue(); 3735 if (Name == "full" || Name == "branch") { 3736 Opts.CFProtectionBranch = 1; 3737 } 3738 } 3739 3740 3741 if (auto *A = Args.getLastArg(OPT_cuid_EQ)) { 3742 Opts.CUID = std::string(A->getValue()); 3743 } 3744 3745 if (Opts.ObjC) { 3746 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3747 StringRef value = arg->getValue(); 3748 if (Opts.ObjCRuntime.tryParse(value)) 3749 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3750 } 3751 3752 if (Args.hasArg(OPT_fobjc_gc_only)) 3753 Opts.setGC(LangOptions::GCOnly); 3754 else if (Args.hasArg(OPT_fobjc_gc)) 3755 Opts.setGC(LangOptions::HybridGC); 3756 else if (Args.hasArg(OPT_fobjc_arc)) { 3757 Opts.ObjCAutoRefCount = 1; 3758 if (!Opts.ObjCRuntime.allowsARC()) 3759 Diags.Report(diag::err_arc_unsupported_on_runtime); 3760 } 3761 3762 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3763 // whether the feature is actually enabled. This is predominantly 3764 // determined by -fobjc-runtime, but we allow it to be overridden 3765 // from the command line for testing purposes. 3766 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3767 Opts.ObjCWeakRuntime = 1; 3768 else 3769 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3770 3771 // ObjCWeak determines whether __weak is actually enabled. 3772 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3773 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3774 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3775 assert(!Opts.ObjCWeak); 3776 } else if (Opts.getGC() != LangOptions::NonGC) { 3777 Diags.Report(diag::err_objc_weak_with_gc); 3778 } else if (!Opts.ObjCWeakRuntime) { 3779 Diags.Report(diag::err_objc_weak_unsupported); 3780 } else { 3781 Opts.ObjCWeak = 1; 3782 } 3783 } else if (Opts.ObjCAutoRefCount) { 3784 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3785 } 3786 3787 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3788 Opts.ObjCSubscriptingLegacyRuntime = 3789 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3790 } 3791 3792 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3793 // Check that the version has 1 to 3 components and the minor and patch 3794 // versions fit in two decimal digits. 3795 VersionTuple GNUCVer; 3796 bool Invalid = GNUCVer.tryParse(A->getValue()); 3797 unsigned Major = GNUCVer.getMajor(); 3798 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3799 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3800 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3801 Diags.Report(diag::err_drv_invalid_value) 3802 << A->getAsString(Args) << A->getValue(); 3803 } 3804 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3805 } 3806 3807 if (Args.hasArg(OPT_ftrapv)) { 3808 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3809 // Set the handler, if one is specified. 3810 Opts.OverflowHandler = 3811 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3812 } 3813 else if (Args.hasArg(OPT_fwrapv)) 3814 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3815 3816 Opts.MSCompatibilityVersion = 0; 3817 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3818 VersionTuple VT; 3819 if (VT.tryParse(A->getValue())) 3820 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3821 << A->getValue(); 3822 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3823 VT.getMinor().getValueOr(0) * 100000 + 3824 VT.getSubminor().getValueOr(0); 3825 } 3826 3827 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3828 // is specified, or -std is set to a conforming mode. 3829 // Trigraphs are disabled by default in c++1z onwards. 3830 // For z/OS, trigraphs are enabled by default (without regard to the above). 3831 Opts.Trigraphs = 3832 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3833 Opts.Trigraphs = 3834 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3835 3836 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3837 && Opts.OpenCLVersion == 200); 3838 3839 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3840 Opts.SYCLIsDevice || 3841 Args.hasArg(OPT_fconvergent_functions); 3842 3843 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3844 if (!Opts.NoBuiltin) 3845 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3846 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3847 ? 128 3848 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3849 if (Opts.FastRelaxedMath) 3850 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3851 llvm::sort(Opts.ModuleFeatures); 3852 3853 // -mrtd option 3854 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3855 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3856 Diags.Report(diag::err_drv_argument_not_allowed_with) 3857 << A->getSpelling() << "-fdefault-calling-conv"; 3858 else { 3859 if (T.getArch() != llvm::Triple::x86) 3860 Diags.Report(diag::err_drv_argument_not_allowed_with) 3861 << A->getSpelling() << T.getTriple(); 3862 else 3863 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3864 } 3865 } 3866 3867 // Check if -fopenmp is specified and set default version to 5.0. 3868 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3869 // Check if -fopenmp-simd is specified. 3870 bool IsSimdSpecified = 3871 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3872 /*Default=*/false); 3873 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3874 Opts.OpenMPUseTLS = 3875 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3876 Opts.OpenMPIsDevice = 3877 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3878 Opts.OpenMPIRBuilder = 3879 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3880 bool IsTargetSpecified = 3881 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3882 3883 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3884 3885 if (Opts.OpenMP || Opts.OpenMPSimd) { 3886 if (int Version = getLastArgIntValue( 3887 Args, OPT_fopenmp_version_EQ, 3888 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3889 Opts.OpenMP = Version; 3890 // Provide diagnostic when a given target is not expected to be an OpenMP 3891 // device or host. 3892 if (!Opts.OpenMPIsDevice) { 3893 switch (T.getArch()) { 3894 default: 3895 break; 3896 // Add unsupported host targets here: 3897 case llvm::Triple::nvptx: 3898 case llvm::Triple::nvptx64: 3899 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3900 break; 3901 } 3902 } 3903 } 3904 3905 // Set the flag to prevent the implementation from emitting device exception 3906 // handling code for those requiring so. 3907 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3908 Opts.OpenCLCPlusPlus) { 3909 Opts.Exceptions = 0; 3910 Opts.CXXExceptions = 0; 3911 } 3912 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3913 Opts.OpenMPCUDANumSMs = 3914 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3915 Opts.OpenMPCUDANumSMs, Diags); 3916 Opts.OpenMPCUDABlocksPerSM = 3917 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3918 Opts.OpenMPCUDABlocksPerSM, Diags); 3919 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3920 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3921 Opts.OpenMPCUDAReductionBufNum, Diags); 3922 } 3923 3924 // Get the OpenMP target triples if any. 3925 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3926 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3927 auto getArchPtrSize = [](const llvm::Triple &T) { 3928 if (T.isArch16Bit()) 3929 return Arch16Bit; 3930 if (T.isArch32Bit()) 3931 return Arch32Bit; 3932 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3933 return Arch64Bit; 3934 }; 3935 3936 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3937 llvm::Triple TT(A->getValue(i)); 3938 3939 if (TT.getArch() == llvm::Triple::UnknownArch || 3940 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3941 TT.getArch() == llvm::Triple::nvptx || 3942 TT.getArch() == llvm::Triple::nvptx64 || 3943 TT.getArch() == llvm::Triple::amdgcn || 3944 TT.getArch() == llvm::Triple::x86 || 3945 TT.getArch() == llvm::Triple::x86_64)) 3946 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3947 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3948 Diags.Report(diag::err_drv_incompatible_omp_arch) 3949 << A->getValue(i) << T.str(); 3950 else 3951 Opts.OMPTargetTriples.push_back(TT); 3952 } 3953 } 3954 3955 // Get OpenMP host file path if any and report if a non existent file is 3956 // found 3957 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3958 Opts.OMPHostIRFile = A->getValue(); 3959 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3960 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3961 << Opts.OMPHostIRFile; 3962 } 3963 3964 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3965 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3966 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3967 3968 // Set CUDA support for parallel execution of target regions for OpenMP target 3969 // NVPTX/AMDGCN if specified in options. 3970 Opts.OpenMPCUDATargetParallel = 3971 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3972 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3973 3974 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3975 Opts.OpenMPCUDAForceFullRuntime = 3976 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3977 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3978 3979 // FIXME: Eliminate this dependency. 3980 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3981 OptSize = getOptimizationLevelSize(Args); 3982 Opts.Optimize = Opt != 0; 3983 Opts.OptimizeSize = OptSize != 0; 3984 3985 // This is the __NO_INLINE__ define, which just depends on things like the 3986 // optimization level and -fno-inline, not actually whether the backend has 3987 // inlining enabled. 3988 Opts.NoInlineDefine = !Opts.Optimize; 3989 if (Arg *InlineArg = Args.getLastArg( 3990 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3991 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3992 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3993 Opts.NoInlineDefine = true; 3994 3995 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3996 StringRef Val = A->getValue(); 3997 if (Val == "fast") 3998 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3999 else if (Val == "on") 4000 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4001 else if (Val == "off") 4002 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4003 else if (Val == "fast-honor-pragmas") 4004 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4005 else 4006 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4007 } 4008 4009 // Parse -fsanitize= arguments. 4010 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4011 Diags, Opts.Sanitize); 4012 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 4013 std::vector<std::string> systemBlacklists = 4014 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 4015 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 4016 systemBlacklists.begin(), 4017 systemBlacklists.end()); 4018 4019 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4020 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4021 4022 StringRef Ver = A->getValue(); 4023 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4024 unsigned Major, Minor = 0; 4025 4026 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4027 // y or y.0 (4 <= y <= current version). 4028 if (!VerParts.first.startswith("0") && 4029 !VerParts.first.getAsInteger(10, Major) && 4030 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4031 (Major == 3 ? VerParts.second.size() == 1 && 4032 !VerParts.second.getAsInteger(10, Minor) 4033 : VerParts.first.size() == Ver.size() || 4034 VerParts.second == "0")) { 4035 // Got a valid version number. 4036 if (Major == 3 && Minor <= 8) 4037 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4038 else if (Major <= 4) 4039 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4040 else if (Major <= 6) 4041 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4042 else if (Major <= 7) 4043 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4044 else if (Major <= 9) 4045 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4046 else if (Major <= 11) 4047 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4048 } else if (Ver != "latest") { 4049 Diags.Report(diag::err_drv_invalid_value) 4050 << A->getAsString(Args) << A->getValue(); 4051 } 4052 } 4053 4054 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4055 StringRef SignScope = A->getValue(); 4056 4057 if (SignScope.equals_lower("none")) 4058 Opts.setSignReturnAddressScope( 4059 LangOptions::SignReturnAddressScopeKind::None); 4060 else if (SignScope.equals_lower("all")) 4061 Opts.setSignReturnAddressScope( 4062 LangOptions::SignReturnAddressScopeKind::All); 4063 else if (SignScope.equals_lower("non-leaf")) 4064 Opts.setSignReturnAddressScope( 4065 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4066 else 4067 Diags.Report(diag::err_drv_invalid_value) 4068 << A->getAsString(Args) << SignScope; 4069 4070 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4071 StringRef SignKey = A->getValue(); 4072 if (!SignScope.empty() && !SignKey.empty()) { 4073 if (SignKey.equals_lower("a_key")) 4074 Opts.setSignReturnAddressKey( 4075 LangOptions::SignReturnAddressKeyKind::AKey); 4076 else if (SignKey.equals_lower("b_key")) 4077 Opts.setSignReturnAddressKey( 4078 LangOptions::SignReturnAddressKeyKind::BKey); 4079 else 4080 Diags.Report(diag::err_drv_invalid_value) 4081 << A->getAsString(Args) << SignKey; 4082 } 4083 } 4084 } 4085 4086 return Success && Diags.getNumErrors() == NumErrorsBefore; 4087 } 4088 4089 bool CompilerInvocation::ParseLangArgs(CompilerInvocation &Res, 4090 LangOptions &Opts, 4091 llvm::opt::ArgList &Args, InputKind IK, 4092 const llvm::Triple &T, 4093 std::vector<std::string> &Includes, 4094 DiagnosticsEngine &Diags) { 4095 auto DummyOpts = std::make_shared<LangOptions>(); 4096 4097 // We need to work around inconsistencies related to optimization flags. Their 4098 // primary consumer is CodeGenOptions. However, the LangOptions parser also 4099 // queries them, which means RoundTrip expects us to generate them. We don't 4100 // want to do it in GenerateLangArgs, because it should eventually be the 4101 // responsibility of GenerateCodeGenArgs. Until we start doing one big 4102 // round-trip, let's do it here. 4103 // 4104 // Our parser always queries OPT_O_Group. When given -O1, -O2 or -O3, it also 4105 // queries OPT_O. To ensure RoundTrip consistently considers us responsible 4106 // for generating all of them, we ensure to proactively query them all. 4107 4108 return RoundTrip( 4109 [IK, &T, &Includes](CompilerInvocation &Res, ArgList &Args, 4110 DiagnosticsEngine &Diags) { 4111 // Proactively query all optimization flags. 4112 Args.getLastArg(OPT_O0, OPT_O4, OPT_O, OPT_Ofast); 4113 return ParseLangArgsImpl(*Res.getLangOpts(), Args, IK, T, Includes, 4114 Diags); 4115 }, 4116 [&T, &Args](CompilerInvocation &Res, 4117 SmallVectorImpl<const char *> &GenArgs, StringAllocator SA) { 4118 GenerateLangArgs(*Res.getLangOpts(), GenArgs, SA, T); 4119 // Generate all optimization flags we queried. 4120 if (Arg *A = Args.getLastArg(OPT_O_Group)) { 4121 OptSpecifier Opt = A->getOption().getID(); 4122 4123 if (A->getNumValues() > 0) 4124 GenerateArg(GenArgs, Opt, A->getValues().back(), SA); 4125 else 4126 GenerateArg(GenArgs, Opt, SA); 4127 } 4128 4129 // We also queried -fcf-protection, but don't have enough information to 4130 // generate it. Eventually, it will be generated from CodeGenOptions. 4131 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) 4132 GenerateArg(GenArgs, OPT_fcf_protection_EQ, A->getValue(), SA); 4133 }, 4134 [&DummyOpts](CompilerInvocation &Res) { Res.LangOpts.swap(DummyOpts); }, 4135 Res, Args, Diags, "LangOptions"); 4136 } 4137 4138 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4139 switch (Action) { 4140 case frontend::ASTDeclList: 4141 case frontend::ASTDump: 4142 case frontend::ASTPrint: 4143 case frontend::ASTView: 4144 case frontend::EmitAssembly: 4145 case frontend::EmitBC: 4146 case frontend::EmitHTML: 4147 case frontend::EmitLLVM: 4148 case frontend::EmitLLVMOnly: 4149 case frontend::EmitCodeGenOnly: 4150 case frontend::EmitObj: 4151 case frontend::FixIt: 4152 case frontend::GenerateModule: 4153 case frontend::GenerateModuleInterface: 4154 case frontend::GenerateHeaderModule: 4155 case frontend::GeneratePCH: 4156 case frontend::GenerateInterfaceStubs: 4157 case frontend::ParseSyntaxOnly: 4158 case frontend::ModuleFileInfo: 4159 case frontend::VerifyPCH: 4160 case frontend::PluginAction: 4161 case frontend::RewriteObjC: 4162 case frontend::RewriteTest: 4163 case frontend::RunAnalysis: 4164 case frontend::TemplightDump: 4165 case frontend::MigrateSource: 4166 return false; 4167 4168 case frontend::DumpCompilerOptions: 4169 case frontend::DumpRawTokens: 4170 case frontend::DumpTokens: 4171 case frontend::InitOnly: 4172 case frontend::PrintPreamble: 4173 case frontend::PrintPreprocessedInput: 4174 case frontend::RewriteMacros: 4175 case frontend::RunPreprocessorOnly: 4176 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4177 return true; 4178 } 4179 llvm_unreachable("invalid frontend action"); 4180 } 4181 4182 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4183 SmallVectorImpl<const char *> &Args, 4184 CompilerInvocation::StringAllocator SA, 4185 const LangOptions &LangOpts, 4186 const FrontendOptions &FrontendOpts, 4187 const CodeGenOptions &CodeGenOpts) { 4188 PreprocessorOptions *PreprocessorOpts = &Opts; 4189 4190 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4191 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4192 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4193 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4194 MERGER, EXTRACTOR, TABLE_INDEX) \ 4195 GENERATE_OPTION_WITH_MARSHALLING( \ 4196 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4197 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4198 #include "clang/Driver/Options.inc" 4199 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4200 4201 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4202 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4203 4204 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4205 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4206 4207 for (const auto &MP : Opts.MacroPrefixMap) 4208 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4209 4210 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4211 GenerateArg(Args, OPT_preamble_bytes_EQ, 4212 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4213 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4214 SA); 4215 4216 for (const auto &M : Opts.Macros) { 4217 // Don't generate __CET__ macro definitions. They are implied by the 4218 // -fcf-protection option that is generated elsewhere. 4219 if (M.first == "__CET__=1" && !M.second && 4220 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4221 continue; 4222 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4223 !CodeGenOpts.CFProtectionBranch) 4224 continue; 4225 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4226 CodeGenOpts.CFProtectionBranch) 4227 continue; 4228 4229 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4230 } 4231 4232 for (const auto &I : Opts.Includes) { 4233 // Don't generate OpenCL includes. They are implied by other flags that are 4234 // generated elsewhere. 4235 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4236 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4237 I == "opencl-c.h")) 4238 continue; 4239 4240 GenerateArg(Args, OPT_include, I, SA); 4241 } 4242 4243 for (const auto &CI : Opts.ChainedIncludes) 4244 GenerateArg(Args, OPT_chain_include, CI, SA); 4245 4246 for (const auto &RF : Opts.RemappedFiles) 4247 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4248 4249 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4250 // generated elsewhere. 4251 } 4252 4253 static bool ParsePreprocessorArgsImpl(PreprocessorOptions &Opts, ArgList &Args, 4254 DiagnosticsEngine &Diags, 4255 frontend::ActionKind Action, 4256 const FrontendOptions &FrontendOpts) { 4257 PreprocessorOptions *PreprocessorOpts = &Opts; 4258 bool Success = true; 4259 4260 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4261 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4262 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4263 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4264 MERGER, EXTRACTOR, TABLE_INDEX) \ 4265 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4266 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4267 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4268 MERGER, TABLE_INDEX) 4269 #include "clang/Driver/Options.inc" 4270 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4271 4272 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4273 Args.hasArg(OPT_pch_through_hdrstop_use); 4274 4275 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4276 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4277 4278 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4279 auto Split = StringRef(A).split('='); 4280 Opts.MacroPrefixMap.insert( 4281 {std::string(Split.first), std::string(Split.second)}); 4282 } 4283 4284 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4285 StringRef Value(A->getValue()); 4286 size_t Comma = Value.find(','); 4287 unsigned Bytes = 0; 4288 unsigned EndOfLine = 0; 4289 4290 if (Comma == StringRef::npos || 4291 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4292 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4293 Diags.Report(diag::err_drv_preamble_format); 4294 else { 4295 Opts.PrecompiledPreambleBytes.first = Bytes; 4296 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4297 } 4298 } 4299 4300 // Add the __CET__ macro if a CFProtection option is set. 4301 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4302 StringRef Name = A->getValue(); 4303 if (Name == "branch") 4304 Opts.addMacroDef("__CET__=1"); 4305 else if (Name == "return") 4306 Opts.addMacroDef("__CET__=2"); 4307 else if (Name == "full") 4308 Opts.addMacroDef("__CET__=3"); 4309 } 4310 4311 // Add macros from the command line. 4312 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4313 if (A->getOption().matches(OPT_D)) 4314 Opts.addMacroDef(A->getValue()); 4315 else 4316 Opts.addMacroUndef(A->getValue()); 4317 } 4318 4319 // Add the ordered list of -includes. 4320 for (const auto *A : Args.filtered(OPT_include)) 4321 Opts.Includes.emplace_back(A->getValue()); 4322 4323 for (const auto *A : Args.filtered(OPT_chain_include)) 4324 Opts.ChainedIncludes.emplace_back(A->getValue()); 4325 4326 for (const auto *A : Args.filtered(OPT_remap_file)) { 4327 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4328 4329 if (Split.second.empty()) { 4330 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4331 continue; 4332 } 4333 4334 Opts.addRemappedFile(Split.first, Split.second); 4335 } 4336 4337 // Always avoid lexing editor placeholders when we're just running the 4338 // preprocessor as we never want to emit the 4339 // "editor placeholder in source file" error in PP only mode. 4340 if (isStrictlyPreprocessorAction(Action)) 4341 Opts.LexEditorPlaceholders = false; 4342 4343 return Success; 4344 } 4345 4346 static bool ParsePreprocessorArgs(CompilerInvocation &Res, 4347 PreprocessorOptions &Opts, ArgList &Args, 4348 DiagnosticsEngine &Diags, 4349 frontend::ActionKind Action, 4350 FrontendOptions &FrontendOpts) { 4351 auto DummyOpts = std::make_shared<PreprocessorOptions>(); 4352 4353 auto Parse = [Action](CompilerInvocation &Res, ArgList &Args, 4354 DiagnosticsEngine &Diags) { 4355 return ParsePreprocessorArgsImpl(Res.getPreprocessorOpts(), Args, Diags, 4356 Action, Res.getFrontendOpts()); 4357 }; 4358 4359 auto Generate = [&Args](CompilerInvocation &Res, 4360 SmallVectorImpl<const char *> &GeneratedArgs, 4361 CompilerInvocation::StringAllocator SA) { 4362 GeneratePreprocessorArgs(Res.getPreprocessorOpts(), GeneratedArgs, SA, 4363 *Res.getLangOpts(), Res.getFrontendOpts(), 4364 Res.getCodeGenOpts()); 4365 // The ParsePreprocessorArgs function queries the -fcf-protection option, 4366 // which means that it won't be directly copied during argument generation. 4367 // The GeneratePreprocessorArgs function isn't responsible for generating it 4368 // either. This would cause -fcf-protection to get forgotten during 4369 // round-trip and the __CET__ macros wouldn't get deduced during second call 4370 // to ParsePreprocessorArgs. Let's fix this by generating -fcf-protection 4371 // here. 4372 // TODO: Remove this once we're doing one big round-trip instead of many 4373 // small ones. 4374 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) 4375 GenerateArg(GeneratedArgs, OPT_fcf_protection_EQ, A->getValue(), SA); 4376 }; 4377 4378 auto Swap = [&DummyOpts](CompilerInvocation &Res) { 4379 std::swap(Res.PreprocessorOpts, DummyOpts); 4380 }; 4381 4382 return RoundTrip(Parse, Generate, Swap, Res, Args, Diags, 4383 "PreprocessorOptions"); 4384 } 4385 4386 static void GeneratePreprocessorOutputArgs( 4387 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4388 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4389 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4390 4391 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4392 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4393 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4394 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4395 MERGER, EXTRACTOR, TABLE_INDEX) \ 4396 GENERATE_OPTION_WITH_MARSHALLING( \ 4397 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4398 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4399 #include "clang/Driver/Options.inc" 4400 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4401 4402 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4403 if (Generate_dM) 4404 GenerateArg(Args, OPT_dM, SA); 4405 if (!Generate_dM && Opts.ShowMacros) 4406 GenerateArg(Args, OPT_dD, SA); 4407 } 4408 4409 static bool ParsePreprocessorOutputArgsImpl(PreprocessorOutputOptions &Opts, 4410 ArgList &Args, 4411 DiagnosticsEngine &Diags, 4412 frontend::ActionKind Action) { 4413 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4414 unsigned NumErrorsBefore = Diags.getNumErrors(); 4415 bool Success = true; 4416 4417 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4418 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4419 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4420 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4421 MERGER, EXTRACTOR, TABLE_INDEX) \ 4422 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4423 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4424 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4425 MERGER, TABLE_INDEX) 4426 #include "clang/Driver/Options.inc" 4427 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4428 4429 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4430 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4431 4432 return Success && Diags.getNumErrors() == NumErrorsBefore; 4433 } 4434 4435 static bool ParsePreprocessorOutputArgs(CompilerInvocation &Res, 4436 PreprocessorOutputOptions &Opts, 4437 ArgList &Args, DiagnosticsEngine &Diags, 4438 frontend::ActionKind Action) { 4439 PreprocessorOutputOptions DummyOpts; 4440 4441 return RoundTrip( 4442 [Action](CompilerInvocation &Res, ArgList &Args, 4443 DiagnosticsEngine &Diags) { 4444 return ParsePreprocessorOutputArgsImpl(Res.getPreprocessorOutputOpts(), 4445 Args, Diags, Action); 4446 }, 4447 [Action](CompilerInvocation &Res, SmallVectorImpl<const char *> &Args, 4448 CompilerInvocation::StringAllocator SA) { 4449 GeneratePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 4450 SA, Action); 4451 }, 4452 [&DummyOpts](CompilerInvocation &Res) { 4453 std::swap(DummyOpts, Res.getPreprocessorOutputOpts()); 4454 }, 4455 Res, Args, Diags, "PreprocessorOutputOptions"); 4456 } 4457 4458 static void GenerateTargetArgs(const TargetOptions &Opts, 4459 SmallVectorImpl<const char *> &Args, 4460 CompilerInvocation::StringAllocator SA) { 4461 const TargetOptions *TargetOpts = &Opts; 4462 #define TARGET_OPTION_WITH_MARSHALLING( \ 4463 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4464 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4465 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4466 MERGER, EXTRACTOR, TABLE_INDEX) \ 4467 GENERATE_OPTION_WITH_MARSHALLING( \ 4468 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4469 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4470 #include "clang/Driver/Options.inc" 4471 #undef TARGET_OPTION_WITH_MARSHALLING 4472 4473 if (!Opts.SDKVersion.empty()) 4474 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4475 SA); 4476 } 4477 4478 static bool ParseTargetArgsImpl(TargetOptions &Opts, ArgList &Args, 4479 DiagnosticsEngine &Diags) { 4480 TargetOptions *TargetOpts = &Opts; 4481 unsigned NumErrorsBefore = Diags.getNumErrors(); 4482 bool Success = true; 4483 4484 #define TARGET_OPTION_WITH_MARSHALLING( \ 4485 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4486 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4487 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4488 MERGER, EXTRACTOR, TABLE_INDEX) \ 4489 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4490 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4491 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4492 MERGER, TABLE_INDEX) 4493 #include "clang/Driver/Options.inc" 4494 #undef TARGET_OPTION_WITH_MARSHALLING 4495 4496 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4497 llvm::VersionTuple Version; 4498 if (Version.tryParse(A->getValue())) 4499 Diags.Report(diag::err_drv_invalid_value) 4500 << A->getAsString(Args) << A->getValue(); 4501 else 4502 Opts.SDKVersion = Version; 4503 } 4504 4505 return Success && Diags.getNumErrors() == NumErrorsBefore; 4506 } 4507 4508 static bool ParseTargetArgs(CompilerInvocation &Res, TargetOptions &Opts, 4509 ArgList &Args, DiagnosticsEngine &Diags) { 4510 auto DummyOpts = std::make_shared<TargetOptions>(); 4511 4512 return RoundTrip( 4513 [](CompilerInvocation &Res, ArgList &Args, 4514 DiagnosticsEngine &Diags) { 4515 return ParseTargetArgsImpl(Res.getTargetOpts(), Args, Diags); 4516 }, 4517 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 4518 CompilerInvocation::StringAllocator SA) { 4519 GenerateTargetArgs(Res.getTargetOpts(), GeneratedArgs, SA); 4520 }, 4521 [&DummyOpts](CompilerInvocation &Res) { 4522 Res.TargetOpts.swap(DummyOpts); 4523 }, 4524 Res, Args, Diags, "TargetArgs"); 4525 } 4526 4527 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 4528 ArrayRef<const char *> CommandLineArgs, 4529 DiagnosticsEngine &Diags, 4530 const char *Argv0) { 4531 bool Success = true; 4532 4533 // Parse the arguments. 4534 const OptTable &Opts = getDriverOptTable(); 4535 const unsigned IncludedFlagsBitmask = options::CC1Option; 4536 unsigned MissingArgIndex, MissingArgCount; 4537 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4538 MissingArgCount, IncludedFlagsBitmask); 4539 LangOptions &LangOpts = *Res.getLangOpts(); 4540 4541 // Check for missing argument error. 4542 if (MissingArgCount) { 4543 Diags.Report(diag::err_drv_missing_argument) 4544 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4545 Success = false; 4546 } 4547 4548 // Issue errors on unknown arguments. 4549 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4550 auto ArgString = A->getAsString(Args); 4551 std::string Nearest; 4552 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4553 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4554 else 4555 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4556 << ArgString << Nearest; 4557 Success = false; 4558 } 4559 4560 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4561 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4562 Success &= ParseAnalyzerArgs(Res, *Res.getAnalyzerOpts(), Args, Diags); 4563 Success &= 4564 ParseDiagnosticArgsRoundTrip(Res, Res.getDiagnosticOpts(), Args, &Diags, 4565 /*DefaultDiagColor=*/false); 4566 Success &= ParseFrontendArgs(Res, Res.getFrontendOpts(), Args, Diags, 4567 LangOpts.IsHeaderFile); 4568 // FIXME: We shouldn't have to pass the DashX option around here 4569 InputKind DashX = Res.getFrontendOpts().DashX; 4570 ParseTargetArgs(Res, Res.getTargetOpts(), Args, Diags); 4571 llvm::Triple T(Res.getTargetOpts().Triple); 4572 ParseHeaderSearchArgs(Res, Res.getHeaderSearchOpts(), Args, Diags, 4573 Res.getFileSystemOpts().WorkingDir); 4574 if (DashX.getFormat() == InputKind::Precompiled || 4575 DashX.getLanguage() == Language::LLVM_IR) { 4576 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4577 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4578 // what the input type is. 4579 if (Args.hasArg(OPT_fobjc_arc)) 4580 LangOpts.ObjCAutoRefCount = 1; 4581 // PIClevel and PIELevel are needed during code generation and this should be 4582 // set regardless of the input type. 4583 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4584 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4585 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4586 Diags, LangOpts.Sanitize); 4587 } else { 4588 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4589 // FIXME: Should we really be calling this for an Language::Asm input? 4590 Success &= ParseLangArgs(Res, LangOpts, Args, DashX, T, 4591 Res.getPreprocessorOpts().Includes, Diags); 4592 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4593 LangOpts.ObjCExceptions = 1; 4594 if (T.isOSDarwin() && DashX.isPreprocessed()) { 4595 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 4596 // preprocessed input as we don't expect it to be used with -std=libc++ 4597 // anyway. 4598 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 4599 } 4600 } 4601 4602 if (LangOpts.CUDA) { 4603 // During CUDA device-side compilation, the aux triple is the 4604 // triple used for host compilation. 4605 if (LangOpts.CUDAIsDevice) 4606 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4607 } 4608 4609 // Set the triple of the host for OpenMP device compile. 4610 if (LangOpts.OpenMPIsDevice) 4611 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4612 4613 Success &= ParseCodeGenArgs(Res, Res.getCodeGenOpts(), Args, DashX, Diags, T, 4614 Res.getFrontendOpts().OutputFile, LangOpts); 4615 4616 // FIXME: Override value name discarding when asan or msan is used because the 4617 // backend passes depend on the name of the alloca in order to print out 4618 // names. 4619 Res.getCodeGenOpts().DiscardValueNames &= 4620 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4621 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4622 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4623 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4624 4625 ParsePreprocessorArgs(Res, Res.getPreprocessorOpts(), Args, Diags, 4626 Res.getFrontendOpts().ProgramAction, 4627 Res.getFrontendOpts()); 4628 ParsePreprocessorOutputArgs(Res, Res.getPreprocessorOutputOpts(), Args, Diags, 4629 Res.getFrontendOpts().ProgramAction); 4630 4631 ParseDependencyOutputArgs(Res, Res.getDependencyOutputOpts(), Args, Diags, 4632 Res.getFrontendOpts().ProgramAction, 4633 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4634 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4635 Res.getDependencyOutputOpts().Targets.empty()) { 4636 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4637 Success = false; 4638 } 4639 4640 // Turn on -Wspir-compat for SPIR target. 4641 if (T.isSPIR()) 4642 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 4643 4644 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4645 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4646 !Res.getLangOpts()->Sanitize.empty()) { 4647 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4648 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4649 } 4650 4651 // Store the command-line for using in the CodeView backend. 4652 Res.getCodeGenOpts().Argv0 = Argv0; 4653 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4654 4655 FixupInvocation(Res, Diags, Args, DashX); 4656 4657 return Success; 4658 } 4659 4660 std::string CompilerInvocation::getModuleHash() const { 4661 // Note: For QoI reasons, the things we use as a hash here should all be 4662 // dumped via the -module-info flag. 4663 using llvm::hash_code; 4664 using llvm::hash_value; 4665 using llvm::hash_combine; 4666 using llvm::hash_combine_range; 4667 4668 // Start the signature with the compiler version. 4669 // FIXME: We'd rather use something more cryptographically sound than 4670 // CityHash, but this will do for now. 4671 hash_code code = hash_value(getClangFullRepositoryVersion()); 4672 4673 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4674 // and getClangFullRepositoryVersion() doesn't include git revision. 4675 code = hash_combine(code, serialization::VERSION_MAJOR, 4676 serialization::VERSION_MINOR); 4677 4678 // Extend the signature with the language options 4679 #define LANGOPT(Name, Bits, Default, Description) \ 4680 code = hash_combine(code, LangOpts->Name); 4681 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4682 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4683 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4684 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4685 #include "clang/Basic/LangOptions.def" 4686 4687 for (StringRef Feature : LangOpts->ModuleFeatures) 4688 code = hash_combine(code, Feature); 4689 4690 code = hash_combine(code, LangOpts->ObjCRuntime); 4691 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4692 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4693 4694 // Extend the signature with the target options. 4695 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4696 TargetOpts->TuneCPU, TargetOpts->ABI); 4697 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4698 code = hash_combine(code, FeatureAsWritten); 4699 4700 // Extend the signature with preprocessor options. 4701 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4702 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4703 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4704 4705 for (const auto &I : getPreprocessorOpts().Macros) { 4706 // If we're supposed to ignore this macro for the purposes of modules, 4707 // don't put it into the hash. 4708 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4709 // Check whether we're ignoring this macro. 4710 StringRef MacroDef = I.first; 4711 if (hsOpts.ModulesIgnoreMacros.count( 4712 llvm::CachedHashString(MacroDef.split('=').first))) 4713 continue; 4714 } 4715 4716 code = hash_combine(code, I.first, I.second); 4717 } 4718 4719 // Extend the signature with the sysroot and other header search options. 4720 code = hash_combine(code, hsOpts.Sysroot, 4721 hsOpts.ModuleFormat, 4722 hsOpts.UseDebugInfo, 4723 hsOpts.UseBuiltinIncludes, 4724 hsOpts.UseStandardSystemIncludes, 4725 hsOpts.UseStandardCXXIncludes, 4726 hsOpts.UseLibcxx, 4727 hsOpts.ModulesValidateDiagnosticOptions); 4728 code = hash_combine(code, hsOpts.ResourceDir); 4729 4730 if (hsOpts.ModulesStrictContextHash) { 4731 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4732 hsOpts.SystemHeaderPrefixes.end()); 4733 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4734 hsOpts.UserEntries.end()); 4735 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4736 hsOpts.UserEntries.size(), UEC); 4737 4738 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4739 #define DIAGOPT(Name, Bits, Default) \ 4740 code = hash_combine(code, diagOpts.Name); 4741 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4742 code = hash_combine(code, diagOpts.get##Name()); 4743 #include "clang/Basic/DiagnosticOptions.def" 4744 #undef DIAGOPT 4745 #undef ENUM_DIAGOPT 4746 } 4747 4748 // Extend the signature with the user build path. 4749 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4750 4751 // Extend the signature with the module file extensions. 4752 const FrontendOptions &frontendOpts = getFrontendOpts(); 4753 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4754 code = ext->hashExtension(code); 4755 } 4756 4757 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4758 // affects the debug info in the PCM. 4759 if (getCodeGenOpts().DebugTypeExtRefs) 4760 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4761 code = hash_combine(code, KeyValue.first, KeyValue.second); 4762 4763 // Extend the signature with the enabled sanitizers, if at least one is 4764 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4765 SanitizerSet SanHash = LangOpts->Sanitize; 4766 SanHash.clear(getPPTransparentSanitizers()); 4767 if (!SanHash.empty()) 4768 code = hash_combine(code, SanHash.Mask); 4769 4770 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4771 } 4772 4773 void CompilerInvocation::generateCC1CommandLine( 4774 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4775 llvm::Triple T(TargetOpts->Triple); 4776 4777 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4778 GenerateMigratorArgs(MigratorOpts, Args, SA); 4779 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4780 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4781 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4782 GenerateTargetArgs(*TargetOpts, Args, SA); 4783 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4784 GenerateLangArgs(*LangOpts, Args, SA, T); 4785 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4786 &*LangOpts); 4787 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4788 CodeGenOpts); 4789 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4790 FrontendOpts.ProgramAction); 4791 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4792 } 4793 4794 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4795 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4796 DiagnosticsEngine &Diags) { 4797 return createVFSFromCompilerInvocation(CI, Diags, 4798 llvm::vfs::getRealFileSystem()); 4799 } 4800 4801 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4802 clang::createVFSFromCompilerInvocation( 4803 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4804 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4805 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4806 return BaseFS; 4807 4808 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4809 // earlier vfs files are on the bottom 4810 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4811 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4812 Result->getBufferForFile(File); 4813 if (!Buffer) { 4814 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4815 continue; 4816 } 4817 4818 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4819 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4820 /*DiagContext*/ nullptr, Result); 4821 if (!FS) { 4822 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4823 continue; 4824 } 4825 4826 Result = FS; 4827 } 4828 return Result; 4829 } 4830