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 1514 bool CompilerInvocation::ParseCodeGenArgsImpl(CodeGenOptions &Opts, 1515 ArgList &Args, InputKind IK, 1516 DiagnosticsEngine &Diags, 1517 const llvm::Triple &T, 1518 const std::string &OutputFile, 1519 const LangOptions &LangOptsRef) { 1520 unsigned NumErrorsBefore = Diags.getNumErrors(); 1521 1522 bool Success = true; 1523 1524 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1525 // TODO: This could be done in Driver 1526 unsigned MaxOptLevel = 3; 1527 if (OptimizationLevel > MaxOptLevel) { 1528 // If the optimization level is not supported, fall back on the default 1529 // optimization 1530 Diags.Report(diag::warn_drv_optimization_value) 1531 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1532 OptimizationLevel = MaxOptLevel; 1533 } 1534 Opts.OptimizationLevel = OptimizationLevel; 1535 1536 // The key paths of codegen options defined in Options.td start with 1537 // "CodeGenOpts.". Let's provide the expected variable name and type. 1538 CodeGenOptions &CodeGenOpts = Opts; 1539 // Some codegen options depend on language options. Let's provide the expected 1540 // variable name and type. 1541 const LangOptions *LangOpts = &LangOptsRef; 1542 1543 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1544 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1545 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1546 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1547 MERGER, EXTRACTOR, TABLE_INDEX) \ 1548 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1549 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1550 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1551 MERGER, TABLE_INDEX) 1552 #include "clang/Driver/Options.inc" 1553 #undef CODEGEN_OPTION_WITH_MARSHALLING 1554 1555 // At O0 we want to fully disable inlining outside of cases marked with 1556 // 'alwaysinline' that are required for correctness. 1557 Opts.setInlining((Opts.OptimizationLevel == 0) 1558 ? CodeGenOptions::OnlyAlwaysInlining 1559 : CodeGenOptions::NormalInlining); 1560 // Explicit inlining flags can disable some or all inlining even at 1561 // optimization levels above zero. 1562 if (Arg *InlineArg = Args.getLastArg( 1563 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1564 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1565 if (Opts.OptimizationLevel > 0) { 1566 const Option &InlineOpt = InlineArg->getOption(); 1567 if (InlineOpt.matches(options::OPT_finline_functions)) 1568 Opts.setInlining(CodeGenOptions::NormalInlining); 1569 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1570 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1571 else 1572 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1573 } 1574 } 1575 1576 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1577 // -fdirect-access-external-data. 1578 Opts.DirectAccessExternalData = 1579 Args.hasArg(OPT_fdirect_access_external_data) || 1580 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1581 LangOpts->PICLevel == 0); 1582 1583 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1584 unsigned Val = 1585 llvm::StringSwitch<unsigned>(A->getValue()) 1586 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1587 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1588 .Case("constructor", codegenoptions::DebugInfoConstructor) 1589 .Case("limited", codegenoptions::LimitedDebugInfo) 1590 .Case("standalone", codegenoptions::FullDebugInfo) 1591 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1592 .Default(~0U); 1593 if (Val == ~0U) 1594 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1595 << A->getValue(); 1596 else 1597 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1598 } 1599 1600 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1601 // constructor homing. 1602 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1603 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1604 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1605 1606 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1607 auto Split = StringRef(Arg).split('='); 1608 Opts.DebugPrefixMap.insert( 1609 {std::string(Split.first), std::string(Split.second)}); 1610 } 1611 1612 for (const auto &Arg : Args.getAllArgValues(OPT_fprofile_prefix_map_EQ)) { 1613 auto Split = StringRef(Arg).split('='); 1614 Opts.ProfilePrefixMap.insert( 1615 {std::string(Split.first), std::string(Split.second)}); 1616 } 1617 1618 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1619 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1620 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1621 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1622 1623 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1624 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1625 Opts.EmitCallSiteInfo = true; 1626 1627 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1628 Args.hasArg(OPT_new_struct_path_tbaa); 1629 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1630 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1631 if (Opts.SimplifyLibCalls) 1632 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1633 Opts.UnrollLoops = 1634 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1635 (Opts.OptimizationLevel > 1)); 1636 Opts.BinutilsVersion = 1637 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1638 1639 Opts.DebugNameTable = static_cast<unsigned>( 1640 Args.hasArg(OPT_ggnu_pubnames) 1641 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1642 : Args.hasArg(OPT_gpubnames) 1643 ? llvm::DICompileUnit::DebugNameTableKind::Default 1644 : llvm::DICompileUnit::DebugNameTableKind::None); 1645 1646 if (!Opts.ProfileInstrumentUsePath.empty()) 1647 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1648 1649 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1650 Opts.TimePasses = true; 1651 1652 // -ftime-report= is only for new pass manager. 1653 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1654 if (Opts.LegacyPassManager) 1655 Diags.Report(diag::err_drv_argument_only_allowed_with) 1656 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1657 1658 StringRef Val = A->getValue(); 1659 if (Val == "per-pass") 1660 Opts.TimePassesPerRun = false; 1661 else if (Val == "per-pass-run") 1662 Opts.TimePassesPerRun = true; 1663 else 1664 Diags.Report(diag::err_drv_invalid_value) 1665 << A->getAsString(Args) << A->getValue(); 1666 } 1667 } 1668 1669 // Basic Block Sections implies Function Sections. 1670 Opts.FunctionSections = 1671 Args.hasArg(OPT_ffunction_sections) || 1672 (Opts.BBSections != "none" && Opts.BBSections != "labels"); 1673 1674 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1675 Opts.PrepareForThinLTO = false; 1676 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1677 StringRef S = A->getValue(); 1678 if (S == "thin") 1679 Opts.PrepareForThinLTO = true; 1680 else if (S != "full") 1681 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1682 } 1683 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1684 if (IK.getLanguage() != Language::LLVM_IR) 1685 Diags.Report(diag::err_drv_argument_only_allowed_with) 1686 << A->getAsString(Args) << "-x ir"; 1687 Opts.ThinLTOIndexFile = 1688 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1689 } 1690 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1691 Opts.SaveTempsFilePrefix = 1692 llvm::StringSwitch<std::string>(A->getValue()) 1693 .Case("obj", OutputFile) 1694 .Default(llvm::sys::path::filename(OutputFile).str()); 1695 1696 // The memory profile runtime appends the pid to make this name more unique. 1697 const char *MemProfileBasename = "memprof.profraw"; 1698 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1699 SmallString<128> Path( 1700 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1701 llvm::sys::path::append(Path, MemProfileBasename); 1702 Opts.MemoryProfileOutput = std::string(Path); 1703 } else if (Args.hasArg(OPT_fmemory_profile)) 1704 Opts.MemoryProfileOutput = MemProfileBasename; 1705 1706 memcpy(Opts.CoverageVersion, "408*", 4); 1707 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1708 if (Args.hasArg(OPT_coverage_version_EQ)) { 1709 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1710 if (CoverageVersion.size() != 4) { 1711 Diags.Report(diag::err_drv_invalid_value) 1712 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1713 << CoverageVersion; 1714 } else { 1715 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1716 } 1717 } 1718 } 1719 // FIXME: For backend options that are not yet recorded as function 1720 // attributes in the IR, keep track of them so we can embed them in a 1721 // separate data section and use them when building the bitcode. 1722 for (const auto &A : Args) { 1723 // Do not encode output and input. 1724 if (A->getOption().getID() == options::OPT_o || 1725 A->getOption().getID() == options::OPT_INPUT || 1726 A->getOption().getID() == options::OPT_x || 1727 A->getOption().getID() == options::OPT_fembed_bitcode || 1728 A->getOption().matches(options::OPT_W_Group)) 1729 continue; 1730 ArgStringList ASL; 1731 A->render(Args, ASL); 1732 for (const auto &arg : ASL) { 1733 StringRef ArgStr(arg); 1734 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1735 // using \00 to separate each commandline options. 1736 Opts.CmdArgs.push_back('\0'); 1737 } 1738 } 1739 1740 auto XRayInstrBundles = 1741 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1742 if (XRayInstrBundles.empty()) 1743 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1744 else 1745 for (const auto &A : XRayInstrBundles) 1746 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1747 Diags, Opts.XRayInstrumentationBundle); 1748 1749 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1750 StringRef Name = A->getValue(); 1751 if (Name == "full") { 1752 Opts.CFProtectionReturn = 1; 1753 Opts.CFProtectionBranch = 1; 1754 } else if (Name == "return") 1755 Opts.CFProtectionReturn = 1; 1756 else if (Name == "branch") 1757 Opts.CFProtectionBranch = 1; 1758 else if (Name != "none") { 1759 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1760 Success = false; 1761 } 1762 } 1763 1764 for (auto *A : 1765 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1766 CodeGenOptions::BitcodeFileToLink F; 1767 F.Filename = A->getValue(); 1768 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1769 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1770 // When linking CUDA bitcode, propagate function attributes so that 1771 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1772 F.PropagateAttrs = true; 1773 F.Internalize = true; 1774 } 1775 Opts.LinkBitcodeFiles.push_back(F); 1776 } 1777 1778 if (Args.getLastArg(OPT_femulated_tls) || 1779 Args.getLastArg(OPT_fno_emulated_tls)) { 1780 Opts.ExplicitEmulatedTLS = true; 1781 } 1782 1783 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1784 StringRef Val = A->getValue(); 1785 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1786 if (!Opts.FPDenormalMode.isValid()) 1787 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1788 } 1789 1790 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1791 StringRef Val = A->getValue(); 1792 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1793 if (!Opts.FP32DenormalMode.isValid()) 1794 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1795 } 1796 1797 // X86_32 has -fppc-struct-return and -freg-struct-return. 1798 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1799 if (Arg *A = 1800 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1801 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1802 // TODO: We might want to consider enabling these options on AIX in the 1803 // future. 1804 if (T.isOSAIX()) 1805 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1806 << A->getSpelling() << T.str(); 1807 1808 const Option &O = A->getOption(); 1809 if (O.matches(OPT_fpcc_struct_return) || 1810 O.matches(OPT_maix_struct_return)) { 1811 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1812 } else { 1813 assert(O.matches(OPT_freg_struct_return) || 1814 O.matches(OPT_msvr4_struct_return)); 1815 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1816 } 1817 } 1818 1819 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1820 !Args.hasArg(OPT_fvisibility))) 1821 Opts.IgnoreXCOFFVisibility = 1; 1822 1823 if (Arg *A = 1824 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1825 if (!T.isOSAIX()) 1826 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1827 << A->getSpelling() << T.str(); 1828 1829 const Option &O = A->getOption(); 1830 if (O.matches(OPT_mabi_EQ_vec_default)) 1831 Diags.Report(diag::err_aix_default_altivec_abi) 1832 << A->getSpelling() << T.str(); 1833 else { 1834 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1835 Opts.EnableAIXExtendedAltivecABI = 1; 1836 } 1837 } 1838 1839 bool NeedLocTracking = false; 1840 1841 if (!Opts.OptRecordFile.empty()) 1842 NeedLocTracking = true; 1843 1844 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1845 Opts.OptRecordPasses = A->getValue(); 1846 NeedLocTracking = true; 1847 } 1848 1849 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1850 Opts.OptRecordFormat = A->getValue(); 1851 NeedLocTracking = true; 1852 } 1853 1854 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1855 Opts.OptimizationRemarkPattern = 1856 GenerateOptimizationRemarkRegex(Diags, Args, A); 1857 NeedLocTracking = true; 1858 } 1859 1860 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1861 Opts.OptimizationRemarkMissedPattern = 1862 GenerateOptimizationRemarkRegex(Diags, Args, A); 1863 NeedLocTracking = true; 1864 } 1865 1866 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1867 Opts.OptimizationRemarkAnalysisPattern = 1868 GenerateOptimizationRemarkRegex(Diags, Args, A); 1869 NeedLocTracking = true; 1870 } 1871 1872 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1873 bool UsingProfile = UsingSampleProfile || 1874 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1875 1876 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1877 // An IR file will contain PGO as metadata 1878 IK.getLanguage() != Language::LLVM_IR) 1879 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1880 << "-fdiagnostics-show-hotness"; 1881 1882 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1883 if (auto *arg = 1884 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1885 auto ResultOrErr = 1886 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1887 1888 if (!ResultOrErr) { 1889 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1890 << "-fdiagnostics-hotness-threshold="; 1891 } else { 1892 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1893 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1894 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1895 !UsingProfile) 1896 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1897 << "-fdiagnostics-hotness-threshold="; 1898 } 1899 } 1900 1901 // If the user requested to use a sample profile for PGO, then the 1902 // backend will need to track source location information so the profile 1903 // can be incorporated into the IR. 1904 if (UsingSampleProfile) 1905 NeedLocTracking = true; 1906 1907 // If the user requested a flag that requires source locations available in 1908 // the backend, make sure that the backend tracks source location information. 1909 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1910 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1911 1912 // Parse -fsanitize-recover= arguments. 1913 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1914 parseSanitizerKinds("-fsanitize-recover=", 1915 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1916 Opts.SanitizeRecover); 1917 parseSanitizerKinds("-fsanitize-trap=", 1918 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1919 Opts.SanitizeTrap); 1920 1921 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1922 1923 if (Args.hasArg(options::OPT_ffinite_loops)) 1924 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1925 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1926 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1927 1928 return Success && Diags.getNumErrors() == NumErrorsBefore; 1929 } 1930 1931 bool CompilerInvocation::ParseCodeGenArgs( 1932 CompilerInvocation &Res, CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1933 DiagnosticsEngine &Diags, const llvm::Triple &T, 1934 const std::string &OutputFile, const LangOptions &LangOptsRef) { 1935 CodeGenOptions DummyOpts; 1936 1937 return RoundTrip( 1938 [&](CompilerInvocation &Res, ArgList &Args, DiagnosticsEngine &Diags) { 1939 Args.getLastArg(OPT_O0, OPT_O4, OPT_O, OPT_Ofast); 1940 return ParseCodeGenArgsImpl(Res.getCodeGenOpts(), Args, IK, Diags, T, 1941 OutputFile, LangOptsRef); 1942 }, 1943 [&](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 1944 StringAllocator SA) { 1945 GenerateCodeGenArgs(Res.getCodeGenOpts(), GeneratedArgs, SA, T, 1946 OutputFile, &LangOptsRef); 1947 }, 1948 [&DummyOpts](CompilerInvocation &Res) { 1949 std::swap(Res.CodeGenOpts, DummyOpts); 1950 }, 1951 Res, Args, Diags, "CodeGenOptions"); 1952 } 1953 1954 static void 1955 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1956 SmallVectorImpl<const char *> &Args, 1957 CompilerInvocation::StringAllocator SA) { 1958 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1959 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1960 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1961 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1962 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1963 MERGER, EXTRACTOR, TABLE_INDEX) \ 1964 GENERATE_OPTION_WITH_MARSHALLING( \ 1965 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1966 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1967 #include "clang/Driver/Options.inc" 1968 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1969 1970 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1971 GenerateArg(Args, OPT_show_includes, SA); 1972 1973 for (const auto &Dep : Opts.ExtraDeps) { 1974 switch (Dep.second) { 1975 case EDK_SanitizeBlacklist: 1976 // Sanitizer blacklist arguments are generated from LanguageOptions. 1977 continue; 1978 case EDK_ModuleFile: 1979 // Module file arguments are generated from FrontendOptions and 1980 // HeaderSearchOptions. 1981 continue; 1982 case EDK_ProfileList: 1983 GenerateArg(Args, OPT_fprofile_list_EQ, Dep.first, SA); 1984 break; 1985 case EDK_DepFileEntry: 1986 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1987 break; 1988 } 1989 } 1990 } 1991 1992 static bool ParseDependencyOutputArgsImpl( 1993 DependencyOutputOptions &Opts, ArgList &Args, 1994 DiagnosticsEngine &Diags, 1995 frontend::ActionKind Action, bool ShowLineMarkers) { 1996 unsigned NumErrorsBefore = Diags.getNumErrors(); 1997 bool Success = true; 1998 1999 DependencyOutputOptions &DependencyOutputOpts = Opts; 2000 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2001 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2002 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2003 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2004 MERGER, EXTRACTOR, TABLE_INDEX) \ 2005 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2006 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2007 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2008 MERGER, TABLE_INDEX) 2009 #include "clang/Driver/Options.inc" 2010 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2011 2012 if (Args.hasArg(OPT_show_includes)) { 2013 // Writing both /showIncludes and preprocessor output to stdout 2014 // would produce interleaved output, so use stderr for /showIncludes. 2015 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2016 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2017 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2018 else 2019 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2020 } else { 2021 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2022 } 2023 2024 // Add sanitizer blacklists as extra dependencies. 2025 // They won't be discovered by the regular preprocessor, so 2026 // we let make / ninja to know about this implicit dependency. 2027 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2028 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2029 StringRef Val = A->getValue(); 2030 if (Val.find('=') == StringRef::npos) 2031 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2032 } 2033 if (Opts.IncludeSystemHeaders) { 2034 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2035 StringRef Val = A->getValue(); 2036 if (Val.find('=') == StringRef::npos) 2037 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2038 } 2039 } 2040 } 2041 2042 // -fprofile-list= dependencies. 2043 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2044 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2045 2046 // Propagate the extra dependencies. 2047 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2048 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2049 2050 // Only the -fmodule-file=<file> form. 2051 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2052 StringRef Val = A->getValue(); 2053 if (Val.find('=') == StringRef::npos) 2054 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2055 } 2056 2057 return Success && Diags.getNumErrors() == NumErrorsBefore; 2058 } 2059 2060 static bool ParseDependencyOutputArgs(CompilerInvocation &Res, 2061 DependencyOutputOptions &Opts, 2062 ArgList &Args, DiagnosticsEngine &Diags, 2063 frontend::ActionKind Action, 2064 bool ShowLineMarkers) { 2065 DependencyOutputOptions DummyOpts; 2066 2067 return RoundTrip( 2068 [Action, ShowLineMarkers](CompilerInvocation &Res, ArgList &Args, 2069 DiagnosticsEngine &Diags) { 2070 return ParseDependencyOutputArgsImpl(Res.getDependencyOutputOpts(), 2071 Args, Diags, Action, 2072 ShowLineMarkers); 2073 }, 2074 [&Args](CompilerInvocation &Res, 2075 SmallVectorImpl<const char *> &GeneratedArgs, 2076 CompilerInvocation::StringAllocator SA) { 2077 GenerateDependencyOutputArgs(Res.getDependencyOutputOpts(), 2078 GeneratedArgs, SA); 2079 // We're querying sanitizer blacklist and module file arguments, but 2080 // they are generated from LanguageOptions and HeaderSearchOptions. 2081 // Let's satisfy RoundTrip by generating them ourselves for now. 2082 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2083 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2084 StringRef Val = A->getValue(); 2085 if (Val.find('=') == StringRef::npos) 2086 GenerateArg(GeneratedArgs, OPT_fsanitize_blacklist, Val, SA); 2087 } 2088 if (Res.getDependencyOutputOpts().IncludeSystemHeaders) { 2089 for (const auto *A : 2090 Args.filtered(OPT_fsanitize_system_blacklist)) { 2091 StringRef Val = A->getValue(); 2092 if (Val.find('=') == StringRef::npos) 2093 GenerateArg(GeneratedArgs, OPT_fsanitize_system_blacklist, Val, 2094 SA); 2095 } 2096 } 2097 } 2098 2099 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2100 StringRef Val = A->getValue(); 2101 if (Val.find('=') == StringRef::npos) 2102 GenerateArg(GeneratedArgs, OPT_fmodule_file, Val, SA); 2103 } 2104 }, 2105 [&DummyOpts](CompilerInvocation &Res) { 2106 std::swap(Res.getDependencyOutputOpts(), DummyOpts); 2107 }, 2108 Res, Args, Diags, "DependencyOutputOptions"); 2109 } 2110 2111 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2112 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2113 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2114 // Support both clang's -f[no-]color-diagnostics and gcc's 2115 // -f[no-]diagnostics-colors[=never|always|auto]. 2116 enum { 2117 Colors_On, 2118 Colors_Off, 2119 Colors_Auto 2120 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2121 for (auto *A : Args) { 2122 const Option &O = A->getOption(); 2123 if (O.matches(options::OPT_fcolor_diagnostics) || 2124 O.matches(options::OPT_fdiagnostics_color)) { 2125 ShowColors = Colors_On; 2126 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2127 O.matches(options::OPT_fno_diagnostics_color)) { 2128 ShowColors = Colors_Off; 2129 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2130 StringRef Value(A->getValue()); 2131 if (Value == "always") 2132 ShowColors = Colors_On; 2133 else if (Value == "never") 2134 ShowColors = Colors_Off; 2135 else if (Value == "auto") 2136 ShowColors = Colors_Auto; 2137 } 2138 } 2139 return ShowColors == Colors_On || 2140 (ShowColors == Colors_Auto && 2141 llvm::sys::Process::StandardErrHasColors()); 2142 } 2143 2144 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2145 DiagnosticsEngine &Diags) { 2146 bool Success = true; 2147 for (const auto &Prefix : VerifyPrefixes) { 2148 // Every prefix must start with a letter and contain only alphanumeric 2149 // characters, hyphens, and underscores. 2150 auto BadChar = llvm::find_if(Prefix, [](char C) { 2151 return !isAlphanumeric(C) && C != '-' && C != '_'; 2152 }); 2153 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2154 Success = false; 2155 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2156 Diags.Report(diag::note_drv_verify_prefix_spelling); 2157 } 2158 } 2159 return Success; 2160 } 2161 2162 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2163 SmallVectorImpl<const char *> &Args, 2164 CompilerInvocation::StringAllocator SA) { 2165 const FileSystemOptions &FileSystemOpts = Opts; 2166 2167 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2168 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2169 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2170 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2171 MERGER, EXTRACTOR, TABLE_INDEX) \ 2172 GENERATE_OPTION_WITH_MARSHALLING( \ 2173 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2174 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2175 #include "clang/Driver/Options.inc" 2176 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2177 } 2178 2179 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2180 DiagnosticsEngine &Diags) { 2181 FileSystemOptions &FileSystemOpts = Opts; 2182 bool Success = true; 2183 2184 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2185 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2186 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2187 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2188 MERGER, EXTRACTOR, TABLE_INDEX) \ 2189 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2190 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2191 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2192 MERGER, TABLE_INDEX) 2193 #include "clang/Driver/Options.inc" 2194 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2195 2196 return Success; 2197 } 2198 2199 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2200 SmallVectorImpl<const char *> &Args, 2201 CompilerInvocation::StringAllocator SA) { 2202 const MigratorOptions &MigratorOpts = Opts; 2203 2204 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2205 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2206 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2207 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2208 MERGER, EXTRACTOR, TABLE_INDEX) \ 2209 GENERATE_OPTION_WITH_MARSHALLING( \ 2210 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2211 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2212 #include "clang/Driver/Options.inc" 2213 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2214 } 2215 2216 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2217 DiagnosticsEngine &Diags) { 2218 MigratorOptions &MigratorOpts = Opts; 2219 bool Success = true; 2220 2221 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2222 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2223 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2224 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2225 MERGER, EXTRACTOR, TABLE_INDEX) \ 2226 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2227 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2228 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2229 MERGER, TABLE_INDEX) 2230 #include "clang/Driver/Options.inc" 2231 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2232 2233 return Success; 2234 } 2235 2236 void CompilerInvocation::GenerateDiagnosticArgs( 2237 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2238 StringAllocator SA, bool DefaultDiagColor) { 2239 const DiagnosticOptions *DiagnosticOpts = &Opts; 2240 #define DIAG_OPTION_WITH_MARSHALLING( \ 2241 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2242 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2243 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2244 MERGER, EXTRACTOR, TABLE_INDEX) \ 2245 GENERATE_OPTION_WITH_MARSHALLING( \ 2246 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2247 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2248 #include "clang/Driver/Options.inc" 2249 #undef DIAG_OPTION_WITH_MARSHALLING 2250 2251 if (!Opts.DiagnosticSerializationFile.empty()) 2252 GenerateArg(Args, OPT_diagnostic_serialized_file, 2253 Opts.DiagnosticSerializationFile, SA); 2254 2255 if (Opts.ShowColors) 2256 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2257 2258 if (Opts.VerifyDiagnostics && 2259 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2260 GenerateArg(Args, OPT_verify, SA); 2261 2262 for (const auto &Prefix : Opts.VerifyPrefixes) 2263 if (Prefix != "expected") 2264 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2265 2266 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2267 if (VIU == DiagnosticLevelMask::None) { 2268 // This is the default, don't generate anything. 2269 } else if (VIU == DiagnosticLevelMask::All) { 2270 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2271 } else { 2272 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2273 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2274 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2275 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2276 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2277 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2278 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2279 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2280 } 2281 2282 for (const auto &Warning : Opts.Warnings) { 2283 // This option is automatically generated from UndefPrefixes. 2284 if (Warning == "undef-prefix") 2285 continue; 2286 Args.push_back(SA(StringRef("-W") + Warning)); 2287 } 2288 2289 for (const auto &Remark : Opts.Remarks) 2290 Args.push_back(SA(StringRef("-R") + Remark)); 2291 } 2292 2293 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2294 DiagnosticsEngine *Diags, 2295 bool DefaultDiagColor) { 2296 Optional<DiagnosticsEngine> IgnoringDiags; 2297 if (!Diags) { 2298 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2299 new IgnoringDiagConsumer()); 2300 Diags = &*IgnoringDiags; 2301 } 2302 2303 // The key paths of diagnostic options defined in Options.td start with 2304 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2305 DiagnosticOptions *DiagnosticOpts = &Opts; 2306 bool Success = true; 2307 2308 #define DIAG_OPTION_WITH_MARSHALLING( \ 2309 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2310 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2311 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2312 MERGER, EXTRACTOR, TABLE_INDEX) \ 2313 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2314 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2315 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2316 MERGER, TABLE_INDEX) 2317 #include "clang/Driver/Options.inc" 2318 #undef DIAG_OPTION_WITH_MARSHALLING 2319 2320 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2321 2322 if (Arg *A = 2323 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2324 Opts.DiagnosticSerializationFile = A->getValue(); 2325 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2326 2327 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2328 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2329 if (Args.hasArg(OPT_verify)) 2330 Opts.VerifyPrefixes.push_back("expected"); 2331 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2332 // then sort it to prepare for fast lookup using std::binary_search. 2333 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2334 Opts.VerifyDiagnostics = false; 2335 Success = false; 2336 } 2337 else 2338 llvm::sort(Opts.VerifyPrefixes); 2339 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2340 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2341 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2342 *Diags, DiagMask); 2343 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2344 DiagMask = DiagnosticLevelMask::All; 2345 Opts.setVerifyIgnoreUnexpected(DiagMask); 2346 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2347 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2348 Diags->Report(diag::warn_ignoring_ftabstop_value) 2349 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2350 } 2351 2352 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2353 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2354 2355 return Success; 2356 } 2357 2358 bool CompilerInvocation::ParseDiagnosticArgsRoundTrip(CompilerInvocation &Res, 2359 DiagnosticOptions &Opts, 2360 ArgList &Args, 2361 DiagnosticsEngine *Diags, 2362 bool DefaultDiagColor) { 2363 IntrusiveRefCntPtr<DiagnosticOptions> DummyOpts(new DiagnosticOptions); 2364 2365 return RoundTrip( 2366 [DefaultDiagColor](CompilerInvocation &Res, ArgList &Args, 2367 DiagnosticsEngine &Diags) { 2368 // Query the options might not get queried properly during parsing, but 2369 // should be generated from DiagnosticOptions. 2370 2371 Args.getLastArg(OPT_fcolor_diagnostics); 2372 Args.getLastArg(OPT_fno_color_diagnostics); 2373 Args.getLastArg(OPT_fdiagnostics_color); 2374 Args.getLastArg(OPT_fno_diagnostics_color); 2375 Args.getLastArg(OPT_fdiagnostics_color_EQ); 2376 2377 for (auto *A : Args.filtered(OPT_W_Group)) 2378 Args.getLastArg(A->getOption().getID()); 2379 for (auto *A : Args.filtered(OPT_R_Group)) 2380 Args.getLastArg(A->getOption().getID()); 2381 2382 return clang::ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2383 DefaultDiagColor); 2384 }, 2385 [DefaultDiagColor](CompilerInvocation &Res, 2386 SmallVectorImpl<const char *> &Args, 2387 CompilerInvocation::StringAllocator SA) { 2388 GenerateDiagnosticArgs(Res.getDiagnosticOpts(), Args, SA, 2389 DefaultDiagColor); 2390 }, 2391 [&DummyOpts](CompilerInvocation &Res) { 2392 Res.DiagnosticOpts.swap(DummyOpts); 2393 }, 2394 Res, Args, *Diags, "DiagnosticOptions"); 2395 } 2396 2397 /// Parse the argument to the -ftest-module-file-extension 2398 /// command-line argument. 2399 /// 2400 /// \returns true on error, false on success. 2401 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2402 std::string &BlockName, 2403 unsigned &MajorVersion, 2404 unsigned &MinorVersion, 2405 bool &Hashed, 2406 std::string &UserInfo) { 2407 SmallVector<StringRef, 5> Args; 2408 Arg.split(Args, ':', 5); 2409 if (Args.size() < 5) 2410 return true; 2411 2412 BlockName = std::string(Args[0]); 2413 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2414 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2415 if (Args[3].getAsInteger(2, Hashed)) return true; 2416 if (Args.size() > 4) 2417 UserInfo = std::string(Args[4]); 2418 return false; 2419 } 2420 2421 /// Return a table that associates command line option specifiers with the 2422 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2423 /// intentionally missing, as this case is handled separately from other 2424 /// frontend options. 2425 static const auto &getFrontendActionTable() { 2426 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2427 {frontend::ASTDeclList, OPT_ast_list}, 2428 2429 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2430 {frontend::ASTDump, OPT_ast_dump_all}, 2431 {frontend::ASTDump, OPT_ast_dump_EQ}, 2432 {frontend::ASTDump, OPT_ast_dump}, 2433 {frontend::ASTDump, OPT_ast_dump_lookups}, 2434 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2435 2436 {frontend::ASTPrint, OPT_ast_print}, 2437 {frontend::ASTView, OPT_ast_view}, 2438 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2439 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2440 {frontend::DumpTokens, OPT_dump_tokens}, 2441 {frontend::EmitAssembly, OPT_S}, 2442 {frontend::EmitBC, OPT_emit_llvm_bc}, 2443 {frontend::EmitHTML, OPT_emit_html}, 2444 {frontend::EmitLLVM, OPT_emit_llvm}, 2445 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2446 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2447 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2448 {frontend::EmitObj, OPT_emit_obj}, 2449 2450 {frontend::FixIt, OPT_fixit_EQ}, 2451 {frontend::FixIt, OPT_fixit}, 2452 2453 {frontend::GenerateModule, OPT_emit_module}, 2454 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2455 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2456 {frontend::GeneratePCH, OPT_emit_pch}, 2457 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2458 {frontend::InitOnly, OPT_init_only}, 2459 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2460 {frontend::ModuleFileInfo, OPT_module_file_info}, 2461 {frontend::VerifyPCH, OPT_verify_pch}, 2462 {frontend::PrintPreamble, OPT_print_preamble}, 2463 {frontend::PrintPreprocessedInput, OPT_E}, 2464 {frontend::TemplightDump, OPT_templight_dump}, 2465 {frontend::RewriteMacros, OPT_rewrite_macros}, 2466 {frontend::RewriteObjC, OPT_rewrite_objc}, 2467 {frontend::RewriteTest, OPT_rewrite_test}, 2468 {frontend::RunAnalysis, OPT_analyze}, 2469 {frontend::MigrateSource, OPT_migrate}, 2470 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2471 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2472 OPT_print_dependency_directives_minimized_source}, 2473 }; 2474 2475 return Table; 2476 } 2477 2478 /// Maps command line option to frontend action. 2479 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2480 for (const auto &ActionOpt : getFrontendActionTable()) 2481 if (ActionOpt.second == Opt.getID()) 2482 return ActionOpt.first; 2483 2484 return None; 2485 } 2486 2487 /// Maps frontend action to command line option. 2488 static Optional<OptSpecifier> 2489 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2490 for (const auto &ActionOpt : getFrontendActionTable()) 2491 if (ActionOpt.first == ProgramAction) 2492 return OptSpecifier(ActionOpt.second); 2493 2494 return None; 2495 } 2496 2497 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2498 SmallVectorImpl<const char *> &Args, 2499 CompilerInvocation::StringAllocator SA, 2500 bool IsHeader) { 2501 const FrontendOptions &FrontendOpts = Opts; 2502 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2503 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2504 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2505 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2506 MERGER, EXTRACTOR, TABLE_INDEX) \ 2507 GENERATE_OPTION_WITH_MARSHALLING( \ 2508 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2509 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2510 #include "clang/Driver/Options.inc" 2511 #undef FRONTEND_OPTION_WITH_MARSHALLING 2512 2513 Optional<OptSpecifier> ProgramActionOpt = 2514 getProgramActionOpt(Opts.ProgramAction); 2515 2516 // Generating a simple flag covers most frontend actions. 2517 std::function<void()> GenerateProgramAction = [&]() { 2518 GenerateArg(Args, *ProgramActionOpt, SA); 2519 }; 2520 2521 if (!ProgramActionOpt) { 2522 // PluginAction is the only program action handled separately. 2523 assert(Opts.ProgramAction == frontend::PluginAction && 2524 "Frontend action without option."); 2525 GenerateProgramAction = [&]() { 2526 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2527 }; 2528 } 2529 2530 // FIXME: Simplify the complex 'AST dump' command line. 2531 if (Opts.ProgramAction == frontend::ASTDump) { 2532 GenerateProgramAction = [&]() { 2533 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2534 // marshalling infrastructure. 2535 2536 if (Opts.ASTDumpFormat != ADOF_Default) { 2537 StringRef Format; 2538 switch (Opts.ASTDumpFormat) { 2539 case ADOF_Default: 2540 llvm_unreachable("Default AST dump format."); 2541 case ADOF_JSON: 2542 Format = "json"; 2543 break; 2544 } 2545 2546 if (Opts.ASTDumpAll) 2547 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2548 if (Opts.ASTDumpDecls) 2549 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2550 } else { 2551 if (Opts.ASTDumpAll) 2552 GenerateArg(Args, OPT_ast_dump_all, SA); 2553 if (Opts.ASTDumpDecls) 2554 GenerateArg(Args, OPT_ast_dump, SA); 2555 } 2556 }; 2557 } 2558 2559 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2560 GenerateProgramAction = [&]() { 2561 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2562 }; 2563 } 2564 2565 GenerateProgramAction(); 2566 2567 for (const auto &PluginArgs : Opts.PluginArgs) 2568 for (const auto &PluginArg : PluginArgs.second) 2569 GenerateArg(Args, OPT_plugin_arg, PluginArgs.first + PluginArg, SA); 2570 2571 for (const auto &Ext : Opts.ModuleFileExtensions) { 2572 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) { 2573 std::string Buffer; 2574 llvm::raw_string_ostream OS(Buffer); 2575 OS << *TestExt; 2576 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, OS.str(), SA); 2577 } 2578 } 2579 2580 if (!Opts.CodeCompletionAt.FileName.empty()) 2581 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2582 SA); 2583 2584 for (const auto &Plugin : Opts.Plugins) 2585 GenerateArg(Args, OPT_load, Plugin, SA); 2586 2587 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2588 2589 for (const auto &ModuleFile : Opts.ModuleFiles) 2590 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2591 2592 if (Opts.AuxTargetCPU.hasValue()) 2593 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2594 2595 if (Opts.AuxTargetFeatures.hasValue()) 2596 for (const auto &Feature : *Opts.AuxTargetFeatures) 2597 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2598 2599 { 2600 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2601 StringRef ModuleMap = 2602 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2603 StringRef Header = IsHeader ? "-header" : ""; 2604 2605 StringRef Lang; 2606 switch (Opts.DashX.getLanguage()) { 2607 case Language::C: 2608 Lang = "c"; 2609 break; 2610 case Language::OpenCL: 2611 Lang = "cl"; 2612 break; 2613 case Language::CUDA: 2614 Lang = "cuda"; 2615 break; 2616 case Language::HIP: 2617 Lang = "hip"; 2618 break; 2619 case Language::CXX: 2620 Lang = "c++"; 2621 break; 2622 case Language::ObjC: 2623 Lang = "objective-c"; 2624 break; 2625 case Language::ObjCXX: 2626 Lang = "objective-c++"; 2627 break; 2628 case Language::RenderScript: 2629 Lang = "renderscript"; 2630 break; 2631 case Language::Asm: 2632 Lang = "assembler-with-cpp"; 2633 break; 2634 case Language::Unknown: 2635 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2636 "Generating -x argument for unknown language (not precompiled)."); 2637 Lang = "ast"; 2638 break; 2639 case Language::LLVM_IR: 2640 Lang = "ir"; 2641 break; 2642 } 2643 2644 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2645 } 2646 2647 // OPT_INPUT has a unique class, generate it directly. 2648 for (const auto &Input : Opts.Inputs) 2649 Args.push_back(SA(Input.getFile())); 2650 } 2651 2652 static bool ParseFrontendArgsImpl(FrontendOptions &Opts, ArgList &Args, 2653 DiagnosticsEngine &Diags, 2654 bool &IsHeaderFile) { 2655 FrontendOptions &FrontendOpts = Opts; 2656 bool Success = true; 2657 unsigned NumErrorsBefore = Diags.getNumErrors(); 2658 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2659 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2660 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2661 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2662 MERGER, EXTRACTOR, TABLE_INDEX) \ 2663 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2664 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2665 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2666 MERGER, TABLE_INDEX) 2667 #include "clang/Driver/Options.inc" 2668 #undef FRONTEND_OPTION_WITH_MARSHALLING 2669 2670 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2671 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2672 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2673 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2674 assert(ProgramAction && "Option specifier not in Action_Group."); 2675 2676 if (ProgramAction == frontend::ASTDump && 2677 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2678 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2679 .CaseLower("default", ADOF_Default) 2680 .CaseLower("json", ADOF_JSON) 2681 .Default(std::numeric_limits<unsigned>::max()); 2682 2683 if (Val != std::numeric_limits<unsigned>::max()) 2684 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2685 else { 2686 Diags.Report(diag::err_drv_invalid_value) 2687 << A->getAsString(Args) << A->getValue(); 2688 Opts.ASTDumpFormat = ADOF_Default; 2689 } 2690 } 2691 2692 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2693 Opts.FixItSuffix = A->getValue(); 2694 2695 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2696 StringRef ArgStr = 2697 Args.hasArg(OPT_interface_stub_version_EQ) 2698 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2699 : "experimental-ifs-v2"; 2700 if (ArgStr == "experimental-yaml-elf-v1" || 2701 ArgStr == "experimental-ifs-v1" || 2702 ArgStr == "experimental-tapi-elf-v1") { 2703 std::string ErrorMessage = 2704 "Invalid interface stub format: " + ArgStr.str() + 2705 " is deprecated."; 2706 Diags.Report(diag::err_drv_invalid_value) 2707 << "Must specify a valid interface stub format type, ie: " 2708 "-interface-stub-version=experimental-ifs-v2" 2709 << ErrorMessage; 2710 ProgramAction = frontend::ParseSyntaxOnly; 2711 } else if (!ArgStr.startswith("experimental-ifs-")) { 2712 std::string ErrorMessage = 2713 "Invalid interface stub format: " + ArgStr.str() + "."; 2714 Diags.Report(diag::err_drv_invalid_value) 2715 << "Must specify a valid interface stub format type, ie: " 2716 "-interface-stub-version=experimental-ifs-v2" 2717 << ErrorMessage; 2718 ProgramAction = frontend::ParseSyntaxOnly; 2719 } 2720 } 2721 2722 Opts.ProgramAction = *ProgramAction; 2723 } 2724 2725 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2726 Opts.Plugins.emplace_back(A->getValue(0)); 2727 Opts.ProgramAction = frontend::PluginAction; 2728 Opts.ActionName = A->getValue(); 2729 } 2730 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2731 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2732 2733 for (const std::string &Arg : 2734 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2735 std::string BlockName; 2736 unsigned MajorVersion; 2737 unsigned MinorVersion; 2738 bool Hashed; 2739 std::string UserInfo; 2740 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2741 MinorVersion, Hashed, UserInfo)) { 2742 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2743 2744 continue; 2745 } 2746 2747 // Add the testing module file extension. 2748 Opts.ModuleFileExtensions.push_back( 2749 std::make_shared<TestModuleFileExtension>( 2750 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2751 } 2752 2753 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2754 Opts.CodeCompletionAt = 2755 ParsedSourceLocation::FromString(A->getValue()); 2756 if (Opts.CodeCompletionAt.FileName.empty()) 2757 Diags.Report(diag::err_drv_invalid_value) 2758 << A->getAsString(Args) << A->getValue(); 2759 } 2760 2761 Opts.Plugins = Args.getAllArgValues(OPT_load); 2762 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2763 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2764 // Only the -fmodule-file=<file> form. 2765 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2766 StringRef Val = A->getValue(); 2767 if (Val.find('=') == StringRef::npos) 2768 Opts.ModuleFiles.push_back(std::string(Val)); 2769 } 2770 2771 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2772 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2773 << "-emit-module"; 2774 2775 if (Args.hasArg(OPT_aux_target_cpu)) 2776 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2777 if (Args.hasArg(OPT_aux_target_feature)) 2778 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2779 2780 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2781 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2782 Diags.Report(diag::err_drv_argument_not_allowed_with) 2783 << "ARC migration" << "ObjC migration"; 2784 } 2785 2786 InputKind DashX(Language::Unknown); 2787 if (const Arg *A = Args.getLastArg(OPT_x)) { 2788 StringRef XValue = A->getValue(); 2789 2790 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2791 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2792 bool Preprocessed = XValue.consume_back("-cpp-output"); 2793 bool ModuleMap = XValue.consume_back("-module-map"); 2794 IsHeaderFile = !Preprocessed && !ModuleMap && 2795 XValue != "precompiled-header" && 2796 XValue.consume_back("-header"); 2797 2798 // Principal languages. 2799 DashX = llvm::StringSwitch<InputKind>(XValue) 2800 .Case("c", Language::C) 2801 .Case("cl", Language::OpenCL) 2802 .Case("cuda", Language::CUDA) 2803 .Case("hip", Language::HIP) 2804 .Case("c++", Language::CXX) 2805 .Case("objective-c", Language::ObjC) 2806 .Case("objective-c++", Language::ObjCXX) 2807 .Case("renderscript", Language::RenderScript) 2808 .Default(Language::Unknown); 2809 2810 // "objc[++]-cpp-output" is an acceptable synonym for 2811 // "objective-c[++]-cpp-output". 2812 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2813 DashX = llvm::StringSwitch<InputKind>(XValue) 2814 .Case("objc", Language::ObjC) 2815 .Case("objc++", Language::ObjCXX) 2816 .Default(Language::Unknown); 2817 2818 // Some special cases cannot be combined with suffixes. 2819 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2820 DashX = llvm::StringSwitch<InputKind>(XValue) 2821 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2822 .Case("assembler-with-cpp", Language::Asm) 2823 .Cases("ast", "pcm", "precompiled-header", 2824 InputKind(Language::Unknown, InputKind::Precompiled)) 2825 .Case("ir", Language::LLVM_IR) 2826 .Default(Language::Unknown); 2827 2828 if (DashX.isUnknown()) 2829 Diags.Report(diag::err_drv_invalid_value) 2830 << A->getAsString(Args) << A->getValue(); 2831 2832 if (Preprocessed) 2833 DashX = DashX.getPreprocessed(); 2834 if (ModuleMap) 2835 DashX = DashX.withFormat(InputKind::ModuleMap); 2836 } 2837 2838 // '-' is the default input if none is given. 2839 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2840 Opts.Inputs.clear(); 2841 if (Inputs.empty()) 2842 Inputs.push_back("-"); 2843 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2844 InputKind IK = DashX; 2845 if (IK.isUnknown()) { 2846 IK = FrontendOptions::getInputKindForExtension( 2847 StringRef(Inputs[i]).rsplit('.').second); 2848 // FIXME: Warn on this? 2849 if (IK.isUnknown()) 2850 IK = Language::C; 2851 // FIXME: Remove this hack. 2852 if (i == 0) 2853 DashX = IK; 2854 } 2855 2856 bool IsSystem = false; 2857 2858 // The -emit-module action implicitly takes a module map. 2859 if (Opts.ProgramAction == frontend::GenerateModule && 2860 IK.getFormat() == InputKind::Source) { 2861 IK = IK.withFormat(InputKind::ModuleMap); 2862 IsSystem = Opts.IsSystemModule; 2863 } 2864 2865 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2866 } 2867 2868 Opts.DashX = DashX; 2869 2870 return Diags.getNumErrors() == NumErrorsBefore; 2871 } 2872 2873 static bool ParseFrontendArgs(CompilerInvocation &Res, FrontendOptions &Opts, 2874 ArgList &Args, DiagnosticsEngine &Diags, 2875 bool &IsHeaderFile) { 2876 FrontendOptions DummyOpts; 2877 2878 return RoundTrip( 2879 [&IsHeaderFile](CompilerInvocation &Res, ArgList &Args, 2880 DiagnosticsEngine &Diags) { 2881 // ParseFrontendArgsImpl handles frontend action without querying the 2882 // options. Let's do it now so RoundTrip considers us responsible for 2883 // generating it. 2884 for (const auto &Pair : getFrontendActionTable()) 2885 Args.hasArg(Pair.second); 2886 2887 return ParseFrontendArgsImpl(Res.getFrontendOpts(), Args, Diags, 2888 IsHeaderFile); 2889 }, 2890 [&IsHeaderFile](CompilerInvocation &Res, 2891 SmallVectorImpl<const char *> &Args, 2892 CompilerInvocation::StringAllocator SA) { 2893 GenerateFrontendArgs(Res.getFrontendOpts(), Args, SA, IsHeaderFile); 2894 }, 2895 [&DummyOpts](CompilerInvocation &Res) { 2896 std::swap(Res.getFrontendOpts(), DummyOpts); 2897 }, 2898 Res, Args, Diags, "FrontendOptions"); 2899 } 2900 2901 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2902 void *MainAddr) { 2903 std::string ClangExecutable = 2904 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2905 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2906 } 2907 2908 void CompilerInvocation::GenerateHeaderSearchArgs( 2909 HeaderSearchOptions &Opts, SmallVectorImpl<const char *> &Args, 2910 CompilerInvocation::StringAllocator SA) { 2911 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2912 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2913 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2914 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2915 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2916 MERGER, EXTRACTOR, TABLE_INDEX) \ 2917 GENERATE_OPTION_WITH_MARSHALLING( \ 2918 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2919 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2920 #include "clang/Driver/Options.inc" 2921 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2922 2923 if (Opts.UseLibcxx) 2924 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2925 2926 if (!Opts.ModuleCachePath.empty()) 2927 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2928 2929 for (const auto &File : Opts.PrebuiltModuleFiles) 2930 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2931 2932 for (const auto &Path : Opts.PrebuiltModulePaths) 2933 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2934 2935 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2936 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2937 2938 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2939 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2940 llvm::Optional<bool> IsFramework, 2941 llvm::Optional<bool> IgnoreSysRoot) { 2942 return llvm::find(Groups, Entry.Group) != Groups.end() && 2943 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2944 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2945 }; 2946 2947 auto It = Opts.UserEntries.begin(); 2948 auto End = Opts.UserEntries.end(); 2949 2950 // Add -I..., -F..., and -index-header-map options in order. 2951 for (; It < End && 2952 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2953 ++It) { 2954 OptSpecifier Opt = [It, Matches]() { 2955 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2956 return OPT_F; 2957 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2958 return OPT_I; 2959 if (Matches(*It, frontend::Angled, true, true)) 2960 return OPT_F; 2961 if (Matches(*It, frontend::Angled, false, true)) 2962 return OPT_I; 2963 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2964 }(); 2965 2966 if (It->Group == frontend::IndexHeaderMap) 2967 GenerateArg(Args, OPT_index_header_map, SA); 2968 GenerateArg(Args, Opt, It->Path, SA); 2969 }; 2970 2971 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2972 // have already been generated as "-I[xx]yy". If that's the case, their 2973 // position on command line was such that this has no semantic impact on 2974 // include paths. 2975 for (; It < End && 2976 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2977 ++It) { 2978 OptSpecifier Opt = 2979 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2980 GenerateArg(Args, Opt, It->Path, SA); 2981 } 2982 2983 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2984 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2985 // command line was such that this has no semantic impact on include paths. 2986 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2987 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2988 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2989 GenerateArg(Args, OPT_iquote, It->Path, SA); 2990 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2991 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2992 It->Path, SA); 2993 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2994 GenerateArg(Args, OPT_iframework, It->Path, SA); 2995 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2996 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2997 2998 // Add the paths for the various language specific isystem flags. 2999 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3000 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3001 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3002 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3003 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3004 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3005 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3006 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3007 3008 // Add the internal paths from a driver that detects standard include paths. 3009 // Note: Some paths that came from "-internal-isystem" arguments may have 3010 // already been generated as "-isystem". If that's the case, their position on 3011 // command line was such that this has no semantic impact on include paths. 3012 for (; It < End && 3013 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3014 ++It) { 3015 OptSpecifier Opt = It->Group == frontend::System 3016 ? OPT_internal_isystem 3017 : OPT_internal_externc_isystem; 3018 GenerateArg(Args, Opt, It->Path, SA); 3019 } 3020 3021 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3022 3023 // Add the path prefixes which are implicitly treated as being system headers. 3024 for (const auto &P : Opts.SystemHeaderPrefixes) { 3025 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3026 : OPT_no_system_header_prefix; 3027 GenerateArg(Args, Opt, P.Prefix, SA); 3028 } 3029 3030 for (const std::string &F : Opts.VFSOverlayFiles) 3031 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3032 } 3033 3034 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3035 DiagnosticsEngine &Diags, 3036 const std::string &WorkingDir) { 3037 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3038 bool Success = true; 3039 3040 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3041 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3042 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3043 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3044 MERGER, EXTRACTOR, TABLE_INDEX) \ 3045 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3046 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3047 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3048 MERGER, TABLE_INDEX) 3049 #include "clang/Driver/Options.inc" 3050 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3051 3052 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3053 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3054 3055 // Canonicalize -fmodules-cache-path before storing it. 3056 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3057 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3058 if (WorkingDir.empty()) 3059 llvm::sys::fs::make_absolute(P); 3060 else 3061 llvm::sys::fs::make_absolute(WorkingDir, P); 3062 } 3063 llvm::sys::path::remove_dots(P); 3064 Opts.ModuleCachePath = std::string(P.str()); 3065 3066 // Only the -fmodule-file=<name>=<file> form. 3067 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3068 StringRef Val = A->getValue(); 3069 if (Val.find('=') != StringRef::npos){ 3070 auto Split = Val.split('='); 3071 Opts.PrebuiltModuleFiles.insert( 3072 {std::string(Split.first), std::string(Split.second)}); 3073 } 3074 } 3075 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3076 Opts.AddPrebuiltModulePath(A->getValue()); 3077 3078 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3079 StringRef MacroDef = A->getValue(); 3080 Opts.ModulesIgnoreMacros.insert( 3081 llvm::CachedHashString(MacroDef.split('=').first)); 3082 } 3083 3084 // Add -I..., -F..., and -index-header-map options in order. 3085 bool IsIndexHeaderMap = false; 3086 bool IsSysrootSpecified = 3087 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3088 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3089 if (A->getOption().matches(OPT_index_header_map)) { 3090 // -index-header-map applies to the next -I or -F. 3091 IsIndexHeaderMap = true; 3092 continue; 3093 } 3094 3095 frontend::IncludeDirGroup Group = 3096 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3097 3098 bool IsFramework = A->getOption().matches(OPT_F); 3099 std::string Path = A->getValue(); 3100 3101 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3102 SmallString<32> Buffer; 3103 llvm::sys::path::append(Buffer, Opts.Sysroot, 3104 llvm::StringRef(A->getValue()).substr(1)); 3105 Path = std::string(Buffer.str()); 3106 } 3107 3108 Opts.AddPath(Path, Group, IsFramework, 3109 /*IgnoreSysroot*/ true); 3110 IsIndexHeaderMap = false; 3111 } 3112 3113 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3114 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3115 for (const auto *A : 3116 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3117 if (A->getOption().matches(OPT_iprefix)) 3118 Prefix = A->getValue(); 3119 else if (A->getOption().matches(OPT_iwithprefix)) 3120 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3121 else 3122 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3123 } 3124 3125 for (const auto *A : Args.filtered(OPT_idirafter)) 3126 Opts.AddPath(A->getValue(), frontend::After, false, true); 3127 for (const auto *A : Args.filtered(OPT_iquote)) 3128 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3129 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3130 Opts.AddPath(A->getValue(), frontend::System, false, 3131 !A->getOption().matches(OPT_iwithsysroot)); 3132 for (const auto *A : Args.filtered(OPT_iframework)) 3133 Opts.AddPath(A->getValue(), frontend::System, true, true); 3134 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3135 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3136 /*IgnoreSysRoot=*/false); 3137 3138 // Add the paths for the various language specific isystem flags. 3139 for (const auto *A : Args.filtered(OPT_c_isystem)) 3140 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3141 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3142 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3143 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3144 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3145 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3146 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3147 3148 // Add the internal paths from a driver that detects standard include paths. 3149 for (const auto *A : 3150 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3151 frontend::IncludeDirGroup Group = frontend::System; 3152 if (A->getOption().matches(OPT_internal_externc_isystem)) 3153 Group = frontend::ExternCSystem; 3154 Opts.AddPath(A->getValue(), Group, false, true); 3155 } 3156 3157 // Add the path prefixes which are implicitly treated as being system headers. 3158 for (const auto *A : 3159 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3160 Opts.AddSystemHeaderPrefix( 3161 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3162 3163 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3164 Opts.AddVFSOverlayFile(A->getValue()); 3165 3166 return Success; 3167 } 3168 3169 void CompilerInvocation::ParseHeaderSearchArgs(CompilerInvocation &Res, 3170 HeaderSearchOptions &Opts, 3171 ArgList &Args, 3172 DiagnosticsEngine &Diags, 3173 const std::string &WorkingDir) { 3174 auto DummyOpts = std::make_shared<HeaderSearchOptions>(); 3175 3176 RoundTrip( 3177 [&WorkingDir](CompilerInvocation &Res, ArgList &Args, 3178 DiagnosticsEngine &Diags) { 3179 return ::ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 3180 WorkingDir); 3181 }, 3182 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 3183 CompilerInvocation::StringAllocator SA) { 3184 GenerateHeaderSearchArgs(Res.getHeaderSearchOpts(), GeneratedArgs, SA); 3185 }, 3186 [&DummyOpts](CompilerInvocation &Res) { 3187 Res.HeaderSearchOpts.swap(DummyOpts); 3188 }, 3189 Res, Args, Diags, "HeaderSearchOptions"); 3190 } 3191 3192 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3193 const llvm::Triple &T, 3194 std::vector<std::string> &Includes, 3195 LangStandard::Kind LangStd) { 3196 // Set some properties which depend solely on the input kind; it would be nice 3197 // to move these to the language standard, and have the driver resolve the 3198 // input kind + language standard. 3199 // 3200 // FIXME: Perhaps a better model would be for a single source file to have 3201 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3202 // simultaneously active? 3203 if (IK.getLanguage() == Language::Asm) { 3204 Opts.AsmPreprocessor = 1; 3205 } else if (IK.isObjectiveC()) { 3206 Opts.ObjC = 1; 3207 } 3208 3209 if (LangStd == LangStandard::lang_unspecified) { 3210 // Based on the base language, pick one. 3211 switch (IK.getLanguage()) { 3212 case Language::Unknown: 3213 case Language::LLVM_IR: 3214 llvm_unreachable("Invalid input kind!"); 3215 case Language::OpenCL: 3216 LangStd = LangStandard::lang_opencl10; 3217 break; 3218 case Language::CUDA: 3219 LangStd = LangStandard::lang_cuda; 3220 break; 3221 case Language::Asm: 3222 case Language::C: 3223 #if defined(CLANG_DEFAULT_STD_C) 3224 LangStd = CLANG_DEFAULT_STD_C; 3225 #else 3226 // The PS4 uses C99 as the default C standard. 3227 if (T.isPS4()) 3228 LangStd = LangStandard::lang_gnu99; 3229 else 3230 LangStd = LangStandard::lang_gnu17; 3231 #endif 3232 break; 3233 case Language::ObjC: 3234 #if defined(CLANG_DEFAULT_STD_C) 3235 LangStd = CLANG_DEFAULT_STD_C; 3236 #else 3237 LangStd = LangStandard::lang_gnu11; 3238 #endif 3239 break; 3240 case Language::CXX: 3241 case Language::ObjCXX: 3242 #if defined(CLANG_DEFAULT_STD_CXX) 3243 LangStd = CLANG_DEFAULT_STD_CXX; 3244 #else 3245 LangStd = LangStandard::lang_gnucxx14; 3246 #endif 3247 break; 3248 case Language::RenderScript: 3249 LangStd = LangStandard::lang_c99; 3250 break; 3251 case Language::HIP: 3252 LangStd = LangStandard::lang_hip; 3253 break; 3254 } 3255 } 3256 3257 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3258 Opts.LangStd = LangStd; 3259 Opts.LineComment = Std.hasLineComments(); 3260 Opts.C99 = Std.isC99(); 3261 Opts.C11 = Std.isC11(); 3262 Opts.C17 = Std.isC17(); 3263 Opts.C2x = Std.isC2x(); 3264 Opts.CPlusPlus = Std.isCPlusPlus(); 3265 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3266 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3267 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3268 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3269 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3270 Opts.GNUMode = Std.isGNUMode(); 3271 Opts.GNUCVersion = 0; 3272 Opts.HexFloats = Std.hasHexFloats(); 3273 Opts.ImplicitInt = Std.hasImplicitInt(); 3274 3275 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3276 3277 // Set OpenCL Version. 3278 Opts.OpenCL = Std.isOpenCL(); 3279 if (LangStd == LangStandard::lang_opencl10) 3280 Opts.OpenCLVersion = 100; 3281 else if (LangStd == LangStandard::lang_opencl11) 3282 Opts.OpenCLVersion = 110; 3283 else if (LangStd == LangStandard::lang_opencl12) 3284 Opts.OpenCLVersion = 120; 3285 else if (LangStd == LangStandard::lang_opencl20) 3286 Opts.OpenCLVersion = 200; 3287 else if (LangStd == LangStandard::lang_opencl30) 3288 Opts.OpenCLVersion = 300; 3289 else if (LangStd == LangStandard::lang_openclcpp) 3290 Opts.OpenCLCPlusPlusVersion = 100; 3291 3292 // OpenCL has some additional defaults. 3293 if (Opts.OpenCL) { 3294 Opts.AltiVec = 0; 3295 Opts.ZVector = 0; 3296 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3297 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3298 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3299 Opts.OpenCLGenericAddressSpace = 3300 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3301 3302 // Include default header file for OpenCL. 3303 if (Opts.IncludeDefaultHeader) { 3304 if (Opts.DeclareOpenCLBuiltins) { 3305 // Only include base header file for builtin types and constants. 3306 Includes.push_back("opencl-c-base.h"); 3307 } else { 3308 Includes.push_back("opencl-c.h"); 3309 } 3310 } 3311 } 3312 3313 Opts.HIP = IK.getLanguage() == Language::HIP; 3314 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3315 if (Opts.HIP) { 3316 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3317 // fuses multiplication/addition instructions without contract flag from 3318 // device library functions in LLVM bitcode, which causes accuracy loss in 3319 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3320 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3321 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3322 // FP contract option is used to allow fuse across statements in frontend 3323 // whereas respecting contract flag in backend. 3324 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3325 } else if (Opts.CUDA) { 3326 // Allow fuse across statements disregarding pragmas. 3327 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3328 } 3329 3330 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3331 3332 // OpenCL and C++ both have bool, true, false keywords. 3333 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3334 3335 // OpenCL has half keyword 3336 Opts.Half = Opts.OpenCL; 3337 } 3338 3339 /// Check if input file kind and language standard are compatible. 3340 static bool IsInputCompatibleWithStandard(InputKind IK, 3341 const LangStandard &S) { 3342 switch (IK.getLanguage()) { 3343 case Language::Unknown: 3344 case Language::LLVM_IR: 3345 llvm_unreachable("should not parse language flags for this input"); 3346 3347 case Language::C: 3348 case Language::ObjC: 3349 case Language::RenderScript: 3350 return S.getLanguage() == Language::C; 3351 3352 case Language::OpenCL: 3353 return S.getLanguage() == Language::OpenCL; 3354 3355 case Language::CXX: 3356 case Language::ObjCXX: 3357 return S.getLanguage() == Language::CXX; 3358 3359 case Language::CUDA: 3360 // FIXME: What -std= values should be permitted for CUDA compilations? 3361 return S.getLanguage() == Language::CUDA || 3362 S.getLanguage() == Language::CXX; 3363 3364 case Language::HIP: 3365 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3366 3367 case Language::Asm: 3368 // Accept (and ignore) all -std= values. 3369 // FIXME: The -std= value is not ignored; it affects the tokenization 3370 // and preprocessing rules if we're preprocessing this asm input. 3371 return true; 3372 } 3373 3374 llvm_unreachable("unexpected input language"); 3375 } 3376 3377 /// Get language name for given input kind. 3378 static const StringRef GetInputKindName(InputKind IK) { 3379 switch (IK.getLanguage()) { 3380 case Language::C: 3381 return "C"; 3382 case Language::ObjC: 3383 return "Objective-C"; 3384 case Language::CXX: 3385 return "C++"; 3386 case Language::ObjCXX: 3387 return "Objective-C++"; 3388 case Language::OpenCL: 3389 return "OpenCL"; 3390 case Language::CUDA: 3391 return "CUDA"; 3392 case Language::RenderScript: 3393 return "RenderScript"; 3394 case Language::HIP: 3395 return "HIP"; 3396 3397 case Language::Asm: 3398 return "Asm"; 3399 case Language::LLVM_IR: 3400 return "LLVM IR"; 3401 3402 case Language::Unknown: 3403 break; 3404 } 3405 llvm_unreachable("unknown input language"); 3406 } 3407 3408 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3409 SmallVectorImpl<const char *> &Args, 3410 StringAllocator SA, 3411 const llvm::Triple &T) { 3412 OptSpecifier StdOpt; 3413 switch (Opts.LangStd) { 3414 case LangStandard::lang_opencl10: 3415 case LangStandard::lang_opencl11: 3416 case LangStandard::lang_opencl12: 3417 case LangStandard::lang_opencl20: 3418 case LangStandard::lang_opencl30: 3419 case LangStandard::lang_openclcpp: 3420 StdOpt = OPT_cl_std_EQ; 3421 break; 3422 default: 3423 StdOpt = OPT_std_EQ; 3424 break; 3425 } 3426 3427 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3428 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3429 3430 if (Opts.IncludeDefaultHeader) 3431 GenerateArg(Args, OPT_finclude_default_header, SA); 3432 if (Opts.DeclareOpenCLBuiltins) 3433 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3434 3435 const LangOptions *LangOpts = &Opts; 3436 3437 #define LANG_OPTION_WITH_MARSHALLING( \ 3438 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3439 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3440 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3441 MERGER, EXTRACTOR, TABLE_INDEX) \ 3442 GENERATE_OPTION_WITH_MARSHALLING( \ 3443 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3444 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3445 #include "clang/Driver/Options.inc" 3446 #undef LANG_OPTION_WITH_MARSHALLING 3447 3448 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3449 3450 if (Opts.ObjC) { 3451 std::string Buffer; 3452 llvm::raw_string_ostream Stream(Buffer); 3453 Stream << Opts.ObjCRuntime; 3454 GenerateArg(Args, OPT_fobjc_runtime_EQ, Stream.str(), SA); 3455 3456 if (Opts.GC == LangOptions::GCOnly) 3457 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3458 else if (Opts.GC == LangOptions::HybridGC) 3459 GenerateArg(Args, OPT_fobjc_gc, SA); 3460 else if (Opts.ObjCAutoRefCount == 1) 3461 GenerateArg(Args, OPT_fobjc_arc, SA); 3462 3463 if (Opts.ObjCWeakRuntime) 3464 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3465 3466 if (Opts.ObjCWeak) 3467 GenerateArg(Args, OPT_fobjc_weak, SA); 3468 3469 if (Opts.ObjCSubscriptingLegacyRuntime) 3470 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3471 } 3472 3473 if (Opts.GNUCVersion != 0) { 3474 unsigned Major = Opts.GNUCVersion / 100 / 100; 3475 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3476 unsigned Patch = Opts.GNUCVersion % 100; 3477 GenerateArg(Args, OPT_fgnuc_version_EQ, 3478 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3479 } 3480 3481 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3482 GenerateArg(Args, OPT_ftrapv, SA); 3483 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3484 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3485 GenerateArg(Args, OPT_fwrapv, SA); 3486 } 3487 3488 if (Opts.MSCompatibilityVersion != 0) { 3489 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3490 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3491 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3492 GenerateArg(Args, OPT_fms_compatibility_version, 3493 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3494 } 3495 3496 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3497 if (!Opts.Trigraphs) 3498 GenerateArg(Args, OPT_fno_trigraphs, SA); 3499 } else { 3500 if (Opts.Trigraphs) 3501 GenerateArg(Args, OPT_ftrigraphs, SA); 3502 } 3503 3504 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3505 GenerateArg(Args, OPT_fblocks, SA); 3506 3507 if (Opts.ConvergentFunctions && 3508 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3509 GenerateArg(Args, OPT_fconvergent_functions, SA); 3510 3511 if (Opts.NoBuiltin && !Opts.Freestanding) 3512 GenerateArg(Args, OPT_fno_builtin, SA); 3513 3514 if (!Opts.NoBuiltin) 3515 for (const auto &Func : Opts.NoBuiltinFuncs) 3516 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3517 3518 if (Opts.LongDoubleSize == 128) 3519 GenerateArg(Args, OPT_mlong_double_128, SA); 3520 else if (Opts.LongDoubleSize == 64) 3521 GenerateArg(Args, OPT_mlong_double_64, SA); 3522 3523 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3524 3525 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3526 // '-fopenmp-targets='. 3527 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3528 GenerateArg(Args, OPT_fopenmp, SA); 3529 3530 if (Opts.OpenMP != 50) 3531 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3532 3533 if (!Opts.OpenMPUseTLS) 3534 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3535 3536 if (Opts.OpenMPIsDevice) 3537 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3538 3539 if (Opts.OpenMPIRBuilder) 3540 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3541 } 3542 3543 if (Opts.OpenMPSimd) { 3544 GenerateArg(Args, OPT_fopenmp_simd, SA); 3545 3546 if (Opts.OpenMP != 50) 3547 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3548 } 3549 3550 if (Opts.OpenMPCUDANumSMs != 0) 3551 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3552 Twine(Opts.OpenMPCUDANumSMs), SA); 3553 3554 if (Opts.OpenMPCUDABlocksPerSM != 0) 3555 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3556 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3557 3558 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3559 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3560 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3561 3562 if (!Opts.OMPTargetTriples.empty()) { 3563 std::string Targets; 3564 llvm::raw_string_ostream OS(Targets); 3565 llvm::interleave( 3566 Opts.OMPTargetTriples, OS, 3567 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3568 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3569 } 3570 3571 if (!Opts.OMPHostIRFile.empty()) 3572 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3573 3574 if (Opts.OpenMPCUDAMode) 3575 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3576 3577 if (Opts.OpenMPCUDATargetParallel) 3578 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3579 3580 if (Opts.OpenMPCUDAForceFullRuntime) 3581 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3582 3583 // The arguments used to set 'Optimize' and 'OptimizeSize' will be generated 3584 // by CodeGenOptions. 3585 3586 if (Opts.NoInlineDefine && Opts.Optimize) 3587 GenerateArg(Args, OPT_fno_inline, SA); 3588 3589 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3590 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3591 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3592 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3593 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3594 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3595 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3596 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3597 3598 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3599 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3600 3601 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3602 for (const std::string &F : Opts.SanitizerBlacklistFiles) 3603 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3604 3605 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3606 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3607 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3608 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3609 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3610 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3611 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3612 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3613 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3614 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3615 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3616 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3617 3618 if (Opts.getSignReturnAddressScope() == 3619 LangOptions::SignReturnAddressScopeKind::All) 3620 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3621 else if (Opts.getSignReturnAddressScope() == 3622 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3623 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3624 3625 if (Opts.getSignReturnAddressKey() == 3626 LangOptions::SignReturnAddressKeyKind::BKey) 3627 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3628 } 3629 3630 bool CompilerInvocation::ParseLangArgsImpl(LangOptions &Opts, ArgList &Args, 3631 InputKind IK, const llvm::Triple &T, 3632 std::vector<std::string> &Includes, 3633 DiagnosticsEngine &Diags) { 3634 unsigned NumErrorsBefore = Diags.getNumErrors(); 3635 3636 // FIXME: Cleanup per-file based stuff. 3637 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3638 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3639 LangStd = LangStandard::getLangKind(A->getValue()); 3640 if (LangStd == LangStandard::lang_unspecified) { 3641 Diags.Report(diag::err_drv_invalid_value) 3642 << A->getAsString(Args) << A->getValue(); 3643 // Report supported standards with short description. 3644 for (unsigned KindValue = 0; 3645 KindValue != LangStandard::lang_unspecified; 3646 ++KindValue) { 3647 const LangStandard &Std = LangStandard::getLangStandardForKind( 3648 static_cast<LangStandard::Kind>(KindValue)); 3649 if (IsInputCompatibleWithStandard(IK, Std)) { 3650 auto Diag = Diags.Report(diag::note_drv_use_standard); 3651 Diag << Std.getName() << Std.getDescription(); 3652 unsigned NumAliases = 0; 3653 #define LANGSTANDARD(id, name, lang, desc, features) 3654 #define LANGSTANDARD_ALIAS(id, alias) \ 3655 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3656 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3657 #include "clang/Basic/LangStandards.def" 3658 Diag << NumAliases; 3659 #define LANGSTANDARD(id, name, lang, desc, features) 3660 #define LANGSTANDARD_ALIAS(id, alias) \ 3661 if (KindValue == LangStandard::lang_##id) Diag << alias; 3662 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3663 #include "clang/Basic/LangStandards.def" 3664 } 3665 } 3666 } else { 3667 // Valid standard, check to make sure language and standard are 3668 // compatible. 3669 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3670 if (!IsInputCompatibleWithStandard(IK, Std)) { 3671 Diags.Report(diag::err_drv_argument_not_allowed_with) 3672 << A->getAsString(Args) << GetInputKindName(IK); 3673 } 3674 } 3675 } 3676 3677 // -cl-std only applies for OpenCL language standards. 3678 // Override the -std option in this case. 3679 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3680 LangStandard::Kind OpenCLLangStd 3681 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3682 .Cases("cl", "CL", LangStandard::lang_opencl10) 3683 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3684 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3685 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3686 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3687 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3688 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3689 .Default(LangStandard::lang_unspecified); 3690 3691 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3692 Diags.Report(diag::err_drv_invalid_value) 3693 << A->getAsString(Args) << A->getValue(); 3694 } 3695 else 3696 LangStd = OpenCLLangStd; 3697 } 3698 3699 // These need to be parsed now. They are used to set OpenCL defaults. 3700 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3701 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3702 3703 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3704 3705 // The key paths of codegen options defined in Options.td start with 3706 // "LangOpts->". Let's provide the expected variable name and type. 3707 LangOptions *LangOpts = &Opts; 3708 bool Success = true; 3709 3710 #define LANG_OPTION_WITH_MARSHALLING( \ 3711 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3712 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3713 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3714 MERGER, EXTRACTOR, TABLE_INDEX) \ 3715 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3716 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3717 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3718 MERGER, TABLE_INDEX) 3719 #include "clang/Driver/Options.inc" 3720 #undef LANG_OPTION_WITH_MARSHALLING 3721 3722 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3723 StringRef Name = A->getValue(); 3724 if (Name == "full" || Name == "branch") { 3725 Opts.CFProtectionBranch = 1; 3726 } 3727 } 3728 3729 3730 if (auto *A = Args.getLastArg(OPT_cuid_EQ)) { 3731 Opts.CUID = std::string(A->getValue()); 3732 } 3733 3734 if (Opts.ObjC) { 3735 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3736 StringRef value = arg->getValue(); 3737 if (Opts.ObjCRuntime.tryParse(value)) 3738 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3739 } 3740 3741 if (Args.hasArg(OPT_fobjc_gc_only)) 3742 Opts.setGC(LangOptions::GCOnly); 3743 else if (Args.hasArg(OPT_fobjc_gc)) 3744 Opts.setGC(LangOptions::HybridGC); 3745 else if (Args.hasArg(OPT_fobjc_arc)) { 3746 Opts.ObjCAutoRefCount = 1; 3747 if (!Opts.ObjCRuntime.allowsARC()) 3748 Diags.Report(diag::err_arc_unsupported_on_runtime); 3749 } 3750 3751 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3752 // whether the feature is actually enabled. This is predominantly 3753 // determined by -fobjc-runtime, but we allow it to be overridden 3754 // from the command line for testing purposes. 3755 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3756 Opts.ObjCWeakRuntime = 1; 3757 else 3758 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3759 3760 // ObjCWeak determines whether __weak is actually enabled. 3761 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3762 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3763 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3764 assert(!Opts.ObjCWeak); 3765 } else if (Opts.getGC() != LangOptions::NonGC) { 3766 Diags.Report(diag::err_objc_weak_with_gc); 3767 } else if (!Opts.ObjCWeakRuntime) { 3768 Diags.Report(diag::err_objc_weak_unsupported); 3769 } else { 3770 Opts.ObjCWeak = 1; 3771 } 3772 } else if (Opts.ObjCAutoRefCount) { 3773 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3774 } 3775 3776 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3777 Opts.ObjCSubscriptingLegacyRuntime = 3778 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3779 } 3780 3781 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3782 // Check that the version has 1 to 3 components and the minor and patch 3783 // versions fit in two decimal digits. 3784 VersionTuple GNUCVer; 3785 bool Invalid = GNUCVer.tryParse(A->getValue()); 3786 unsigned Major = GNUCVer.getMajor(); 3787 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3788 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3789 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3790 Diags.Report(diag::err_drv_invalid_value) 3791 << A->getAsString(Args) << A->getValue(); 3792 } 3793 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3794 } 3795 3796 if (Args.hasArg(OPT_ftrapv)) { 3797 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3798 // Set the handler, if one is specified. 3799 Opts.OverflowHandler = 3800 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3801 } 3802 else if (Args.hasArg(OPT_fwrapv)) 3803 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3804 3805 Opts.MSCompatibilityVersion = 0; 3806 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3807 VersionTuple VT; 3808 if (VT.tryParse(A->getValue())) 3809 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3810 << A->getValue(); 3811 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3812 VT.getMinor().getValueOr(0) * 100000 + 3813 VT.getSubminor().getValueOr(0); 3814 } 3815 3816 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3817 // is specified, or -std is set to a conforming mode. 3818 // Trigraphs are disabled by default in c++1z onwards. 3819 // For z/OS, trigraphs are enabled by default (without regard to the above). 3820 Opts.Trigraphs = 3821 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3822 Opts.Trigraphs = 3823 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3824 3825 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3826 && Opts.OpenCLVersion == 200); 3827 3828 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3829 Opts.SYCLIsDevice || 3830 Args.hasArg(OPT_fconvergent_functions); 3831 3832 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3833 if (!Opts.NoBuiltin) 3834 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3835 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3836 ? 128 3837 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3838 if (Opts.FastRelaxedMath) 3839 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3840 llvm::sort(Opts.ModuleFeatures); 3841 3842 // -mrtd option 3843 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3844 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3845 Diags.Report(diag::err_drv_argument_not_allowed_with) 3846 << A->getSpelling() << "-fdefault-calling-conv"; 3847 else { 3848 if (T.getArch() != llvm::Triple::x86) 3849 Diags.Report(diag::err_drv_argument_not_allowed_with) 3850 << A->getSpelling() << T.getTriple(); 3851 else 3852 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3853 } 3854 } 3855 3856 // Check if -fopenmp is specified and set default version to 5.0. 3857 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3858 // Check if -fopenmp-simd is specified. 3859 bool IsSimdSpecified = 3860 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3861 /*Default=*/false); 3862 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3863 Opts.OpenMPUseTLS = 3864 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3865 Opts.OpenMPIsDevice = 3866 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3867 Opts.OpenMPIRBuilder = 3868 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3869 bool IsTargetSpecified = 3870 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3871 3872 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3873 3874 if (Opts.OpenMP || Opts.OpenMPSimd) { 3875 if (int Version = getLastArgIntValue( 3876 Args, OPT_fopenmp_version_EQ, 3877 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3878 Opts.OpenMP = Version; 3879 // Provide diagnostic when a given target is not expected to be an OpenMP 3880 // device or host. 3881 if (!Opts.OpenMPIsDevice) { 3882 switch (T.getArch()) { 3883 default: 3884 break; 3885 // Add unsupported host targets here: 3886 case llvm::Triple::nvptx: 3887 case llvm::Triple::nvptx64: 3888 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3889 break; 3890 } 3891 } 3892 } 3893 3894 // Set the flag to prevent the implementation from emitting device exception 3895 // handling code for those requiring so. 3896 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3897 Opts.OpenCLCPlusPlus) { 3898 Opts.Exceptions = 0; 3899 Opts.CXXExceptions = 0; 3900 } 3901 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3902 Opts.OpenMPCUDANumSMs = 3903 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3904 Opts.OpenMPCUDANumSMs, Diags); 3905 Opts.OpenMPCUDABlocksPerSM = 3906 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3907 Opts.OpenMPCUDABlocksPerSM, Diags); 3908 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3909 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3910 Opts.OpenMPCUDAReductionBufNum, Diags); 3911 } 3912 3913 // Get the OpenMP target triples if any. 3914 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3915 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3916 auto getArchPtrSize = [](const llvm::Triple &T) { 3917 if (T.isArch16Bit()) 3918 return Arch16Bit; 3919 if (T.isArch32Bit()) 3920 return Arch32Bit; 3921 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3922 return Arch64Bit; 3923 }; 3924 3925 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3926 llvm::Triple TT(A->getValue(i)); 3927 3928 if (TT.getArch() == llvm::Triple::UnknownArch || 3929 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3930 TT.getArch() == llvm::Triple::nvptx || 3931 TT.getArch() == llvm::Triple::nvptx64 || 3932 TT.getArch() == llvm::Triple::amdgcn || 3933 TT.getArch() == llvm::Triple::x86 || 3934 TT.getArch() == llvm::Triple::x86_64)) 3935 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3936 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3937 Diags.Report(diag::err_drv_incompatible_omp_arch) 3938 << A->getValue(i) << T.str(); 3939 else 3940 Opts.OMPTargetTriples.push_back(TT); 3941 } 3942 } 3943 3944 // Get OpenMP host file path if any and report if a non existent file is 3945 // found 3946 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3947 Opts.OMPHostIRFile = A->getValue(); 3948 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3949 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3950 << Opts.OMPHostIRFile; 3951 } 3952 3953 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3954 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3955 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3956 3957 // Set CUDA support for parallel execution of target regions for OpenMP target 3958 // NVPTX/AMDGCN if specified in options. 3959 Opts.OpenMPCUDATargetParallel = 3960 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3961 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3962 3963 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3964 Opts.OpenMPCUDAForceFullRuntime = 3965 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3966 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3967 3968 // FIXME: Eliminate this dependency. 3969 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3970 OptSize = getOptimizationLevelSize(Args); 3971 Opts.Optimize = Opt != 0; 3972 Opts.OptimizeSize = OptSize != 0; 3973 3974 // This is the __NO_INLINE__ define, which just depends on things like the 3975 // optimization level and -fno-inline, not actually whether the backend has 3976 // inlining enabled. 3977 Opts.NoInlineDefine = !Opts.Optimize; 3978 if (Arg *InlineArg = Args.getLastArg( 3979 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3980 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3981 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3982 Opts.NoInlineDefine = true; 3983 3984 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3985 StringRef Val = A->getValue(); 3986 if (Val == "fast") 3987 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3988 else if (Val == "on") 3989 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3990 else if (Val == "off") 3991 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3992 else if (Val == "fast-honor-pragmas") 3993 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3994 else 3995 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3996 } 3997 3998 // Parse -fsanitize= arguments. 3999 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4000 Diags, Opts.Sanitize); 4001 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 4002 std::vector<std::string> systemBlacklists = 4003 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 4004 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 4005 systemBlacklists.begin(), 4006 systemBlacklists.end()); 4007 4008 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4009 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4010 4011 StringRef Ver = A->getValue(); 4012 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4013 unsigned Major, Minor = 0; 4014 4015 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4016 // y or y.0 (4 <= y <= current version). 4017 if (!VerParts.first.startswith("0") && 4018 !VerParts.first.getAsInteger(10, Major) && 4019 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4020 (Major == 3 ? VerParts.second.size() == 1 && 4021 !VerParts.second.getAsInteger(10, Minor) 4022 : VerParts.first.size() == Ver.size() || 4023 VerParts.second == "0")) { 4024 // Got a valid version number. 4025 if (Major == 3 && Minor <= 8) 4026 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4027 else if (Major <= 4) 4028 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4029 else if (Major <= 6) 4030 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4031 else if (Major <= 7) 4032 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4033 else if (Major <= 9) 4034 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4035 else if (Major <= 11) 4036 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4037 } else if (Ver != "latest") { 4038 Diags.Report(diag::err_drv_invalid_value) 4039 << A->getAsString(Args) << A->getValue(); 4040 } 4041 } 4042 4043 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4044 StringRef SignScope = A->getValue(); 4045 4046 if (SignScope.equals_lower("none")) 4047 Opts.setSignReturnAddressScope( 4048 LangOptions::SignReturnAddressScopeKind::None); 4049 else if (SignScope.equals_lower("all")) 4050 Opts.setSignReturnAddressScope( 4051 LangOptions::SignReturnAddressScopeKind::All); 4052 else if (SignScope.equals_lower("non-leaf")) 4053 Opts.setSignReturnAddressScope( 4054 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4055 else 4056 Diags.Report(diag::err_drv_invalid_value) 4057 << A->getAsString(Args) << SignScope; 4058 4059 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4060 StringRef SignKey = A->getValue(); 4061 if (!SignScope.empty() && !SignKey.empty()) { 4062 if (SignKey.equals_lower("a_key")) 4063 Opts.setSignReturnAddressKey( 4064 LangOptions::SignReturnAddressKeyKind::AKey); 4065 else if (SignKey.equals_lower("b_key")) 4066 Opts.setSignReturnAddressKey( 4067 LangOptions::SignReturnAddressKeyKind::BKey); 4068 else 4069 Diags.Report(diag::err_drv_invalid_value) 4070 << A->getAsString(Args) << SignKey; 4071 } 4072 } 4073 } 4074 4075 return Success && Diags.getNumErrors() == NumErrorsBefore; 4076 } 4077 4078 bool CompilerInvocation::ParseLangArgs(CompilerInvocation &Res, 4079 LangOptions &Opts, 4080 llvm::opt::ArgList &Args, InputKind IK, 4081 const llvm::Triple &T, 4082 std::vector<std::string> &Includes, 4083 DiagnosticsEngine &Diags) { 4084 auto DummyOpts = std::make_shared<LangOptions>(); 4085 4086 // We need to work around inconsistencies related to optimization flags. Their 4087 // primary consumer is CodeGenOptions. However, the LangOptions parser also 4088 // queries them, which means RoundTrip expects us to generate them. We don't 4089 // want to do it in GenerateLangArgs, because it should eventually be the 4090 // responsibility of GenerateCodeGenArgs. Until we start doing one big 4091 // round-trip, let's do it here. 4092 // 4093 // Our parser always queries OPT_O_Group. When given -O1, -O2 or -O3, it also 4094 // queries OPT_O. To ensure RoundTrip consistently considers us responsible 4095 // for generating all of them, we ensure to proactively query them all. 4096 4097 return RoundTrip( 4098 [IK, &T, &Includes](CompilerInvocation &Res, ArgList &Args, 4099 DiagnosticsEngine &Diags) { 4100 // Proactively query all optimization flags. 4101 Args.getLastArg(OPT_O0, OPT_O4, OPT_O, OPT_Ofast); 4102 return ParseLangArgsImpl(*Res.getLangOpts(), Args, IK, T, Includes, 4103 Diags); 4104 }, 4105 [&T, &Args](CompilerInvocation &Res, 4106 SmallVectorImpl<const char *> &GenArgs, StringAllocator SA) { 4107 GenerateLangArgs(*Res.getLangOpts(), GenArgs, SA, T); 4108 // Generate all optimization flags we queried. 4109 if (Arg *A = Args.getLastArg(OPT_O_Group)) { 4110 OptSpecifier Opt = A->getOption().getID(); 4111 4112 if (A->getNumValues() > 0) 4113 GenerateArg(GenArgs, Opt, A->getValues().back(), SA); 4114 else 4115 GenerateArg(GenArgs, Opt, SA); 4116 } 4117 4118 // We also queried -fcf-protection, but don't have enough information to 4119 // generate it. Eventually, it will be generated from CodeGenOptions. 4120 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) 4121 GenerateArg(GenArgs, OPT_fcf_protection_EQ, A->getValue(), SA); 4122 }, 4123 [&DummyOpts](CompilerInvocation &Res) { Res.LangOpts.swap(DummyOpts); }, 4124 Res, Args, Diags, "LangOptions"); 4125 } 4126 4127 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4128 switch (Action) { 4129 case frontend::ASTDeclList: 4130 case frontend::ASTDump: 4131 case frontend::ASTPrint: 4132 case frontend::ASTView: 4133 case frontend::EmitAssembly: 4134 case frontend::EmitBC: 4135 case frontend::EmitHTML: 4136 case frontend::EmitLLVM: 4137 case frontend::EmitLLVMOnly: 4138 case frontend::EmitCodeGenOnly: 4139 case frontend::EmitObj: 4140 case frontend::FixIt: 4141 case frontend::GenerateModule: 4142 case frontend::GenerateModuleInterface: 4143 case frontend::GenerateHeaderModule: 4144 case frontend::GeneratePCH: 4145 case frontend::GenerateInterfaceStubs: 4146 case frontend::ParseSyntaxOnly: 4147 case frontend::ModuleFileInfo: 4148 case frontend::VerifyPCH: 4149 case frontend::PluginAction: 4150 case frontend::RewriteObjC: 4151 case frontend::RewriteTest: 4152 case frontend::RunAnalysis: 4153 case frontend::TemplightDump: 4154 case frontend::MigrateSource: 4155 return false; 4156 4157 case frontend::DumpCompilerOptions: 4158 case frontend::DumpRawTokens: 4159 case frontend::DumpTokens: 4160 case frontend::InitOnly: 4161 case frontend::PrintPreamble: 4162 case frontend::PrintPreprocessedInput: 4163 case frontend::RewriteMacros: 4164 case frontend::RunPreprocessorOnly: 4165 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4166 return true; 4167 } 4168 llvm_unreachable("invalid frontend action"); 4169 } 4170 4171 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4172 SmallVectorImpl<const char *> &Args, 4173 CompilerInvocation::StringAllocator SA, 4174 const LangOptions &LangOpts, 4175 const FrontendOptions &FrontendOpts, 4176 const CodeGenOptions &CodeGenOpts) { 4177 PreprocessorOptions *PreprocessorOpts = &Opts; 4178 4179 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4180 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4181 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4182 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4183 MERGER, EXTRACTOR, TABLE_INDEX) \ 4184 GENERATE_OPTION_WITH_MARSHALLING( \ 4185 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4186 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4187 #include "clang/Driver/Options.inc" 4188 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4189 4190 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4191 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4192 4193 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4194 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4195 4196 for (const auto &MP : Opts.MacroPrefixMap) 4197 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4198 4199 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4200 GenerateArg(Args, OPT_preamble_bytes_EQ, 4201 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4202 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4203 SA); 4204 4205 for (const auto &M : Opts.Macros) { 4206 // Don't generate __CET__ macro definitions. They are implied by the 4207 // -fcf-protection option that is generated elsewhere. 4208 if (M.first == "__CET__=1" && !M.second && 4209 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4210 continue; 4211 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4212 !CodeGenOpts.CFProtectionBranch) 4213 continue; 4214 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4215 CodeGenOpts.CFProtectionBranch) 4216 continue; 4217 4218 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4219 } 4220 4221 for (const auto &I : Opts.Includes) { 4222 // Don't generate OpenCL includes. They are implied by other flags that are 4223 // generated elsewhere. 4224 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4225 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4226 I == "opencl-c.h")) 4227 continue; 4228 4229 GenerateArg(Args, OPT_include, I, SA); 4230 } 4231 4232 for (const auto &CI : Opts.ChainedIncludes) 4233 GenerateArg(Args, OPT_chain_include, CI, SA); 4234 4235 for (const auto &RF : Opts.RemappedFiles) 4236 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4237 4238 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4239 // generated elsewhere. 4240 } 4241 4242 static bool ParsePreprocessorArgsImpl(PreprocessorOptions &Opts, ArgList &Args, 4243 DiagnosticsEngine &Diags, 4244 frontend::ActionKind Action, 4245 const FrontendOptions &FrontendOpts) { 4246 PreprocessorOptions *PreprocessorOpts = &Opts; 4247 bool Success = true; 4248 4249 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4250 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4251 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4252 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4253 MERGER, EXTRACTOR, TABLE_INDEX) \ 4254 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4255 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4256 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4257 MERGER, TABLE_INDEX) 4258 #include "clang/Driver/Options.inc" 4259 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4260 4261 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4262 Args.hasArg(OPT_pch_through_hdrstop_use); 4263 4264 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4265 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4266 4267 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4268 auto Split = StringRef(A).split('='); 4269 Opts.MacroPrefixMap.insert( 4270 {std::string(Split.first), std::string(Split.second)}); 4271 } 4272 4273 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4274 StringRef Value(A->getValue()); 4275 size_t Comma = Value.find(','); 4276 unsigned Bytes = 0; 4277 unsigned EndOfLine = 0; 4278 4279 if (Comma == StringRef::npos || 4280 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4281 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4282 Diags.Report(diag::err_drv_preamble_format); 4283 else { 4284 Opts.PrecompiledPreambleBytes.first = Bytes; 4285 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4286 } 4287 } 4288 4289 // Add the __CET__ macro if a CFProtection option is set. 4290 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4291 StringRef Name = A->getValue(); 4292 if (Name == "branch") 4293 Opts.addMacroDef("__CET__=1"); 4294 else if (Name == "return") 4295 Opts.addMacroDef("__CET__=2"); 4296 else if (Name == "full") 4297 Opts.addMacroDef("__CET__=3"); 4298 } 4299 4300 // Add macros from the command line. 4301 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4302 if (A->getOption().matches(OPT_D)) 4303 Opts.addMacroDef(A->getValue()); 4304 else 4305 Opts.addMacroUndef(A->getValue()); 4306 } 4307 4308 // Add the ordered list of -includes. 4309 for (const auto *A : Args.filtered(OPT_include)) 4310 Opts.Includes.emplace_back(A->getValue()); 4311 4312 for (const auto *A : Args.filtered(OPT_chain_include)) 4313 Opts.ChainedIncludes.emplace_back(A->getValue()); 4314 4315 for (const auto *A : Args.filtered(OPT_remap_file)) { 4316 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4317 4318 if (Split.second.empty()) { 4319 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4320 continue; 4321 } 4322 4323 Opts.addRemappedFile(Split.first, Split.second); 4324 } 4325 4326 // Always avoid lexing editor placeholders when we're just running the 4327 // preprocessor as we never want to emit the 4328 // "editor placeholder in source file" error in PP only mode. 4329 if (isStrictlyPreprocessorAction(Action)) 4330 Opts.LexEditorPlaceholders = false; 4331 4332 return Success; 4333 } 4334 4335 static bool ParsePreprocessorArgs(CompilerInvocation &Res, 4336 PreprocessorOptions &Opts, ArgList &Args, 4337 DiagnosticsEngine &Diags, 4338 frontend::ActionKind Action, 4339 FrontendOptions &FrontendOpts) { 4340 auto DummyOpts = std::make_shared<PreprocessorOptions>(); 4341 4342 auto Parse = [Action](CompilerInvocation &Res, ArgList &Args, 4343 DiagnosticsEngine &Diags) { 4344 return ParsePreprocessorArgsImpl(Res.getPreprocessorOpts(), Args, Diags, 4345 Action, Res.getFrontendOpts()); 4346 }; 4347 4348 auto Generate = [&Args](CompilerInvocation &Res, 4349 SmallVectorImpl<const char *> &GeneratedArgs, 4350 CompilerInvocation::StringAllocator SA) { 4351 GeneratePreprocessorArgs(Res.getPreprocessorOpts(), GeneratedArgs, SA, 4352 *Res.getLangOpts(), Res.getFrontendOpts(), 4353 Res.getCodeGenOpts()); 4354 // The ParsePreprocessorArgs function queries the -fcf-protection option, 4355 // which means that it won't be directly copied during argument generation. 4356 // The GeneratePreprocessorArgs function isn't responsible for generating it 4357 // either. This would cause -fcf-protection to get forgotten during 4358 // round-trip and the __CET__ macros wouldn't get deduced during second call 4359 // to ParsePreprocessorArgs. Let's fix this by generating -fcf-protection 4360 // here. 4361 // TODO: Remove this once we're doing one big round-trip instead of many 4362 // small ones. 4363 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) 4364 GenerateArg(GeneratedArgs, OPT_fcf_protection_EQ, A->getValue(), SA); 4365 }; 4366 4367 auto Swap = [&DummyOpts](CompilerInvocation &Res) { 4368 std::swap(Res.PreprocessorOpts, DummyOpts); 4369 }; 4370 4371 return RoundTrip(Parse, Generate, Swap, Res, Args, Diags, 4372 "PreprocessorOptions"); 4373 } 4374 4375 static void GeneratePreprocessorOutputArgs( 4376 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4377 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4378 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4379 4380 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4381 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4382 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4383 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4384 MERGER, EXTRACTOR, TABLE_INDEX) \ 4385 GENERATE_OPTION_WITH_MARSHALLING( \ 4386 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4387 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4388 #include "clang/Driver/Options.inc" 4389 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4390 4391 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4392 if (Generate_dM) 4393 GenerateArg(Args, OPT_dM, SA); 4394 if (!Generate_dM && Opts.ShowMacros) 4395 GenerateArg(Args, OPT_dD, SA); 4396 } 4397 4398 static bool ParsePreprocessorOutputArgsImpl(PreprocessorOutputOptions &Opts, 4399 ArgList &Args, 4400 DiagnosticsEngine &Diags, 4401 frontend::ActionKind Action) { 4402 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4403 unsigned NumErrorsBefore = Diags.getNumErrors(); 4404 bool Success = true; 4405 4406 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4407 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4408 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4409 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4410 MERGER, EXTRACTOR, TABLE_INDEX) \ 4411 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4412 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4413 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4414 MERGER, TABLE_INDEX) 4415 #include "clang/Driver/Options.inc" 4416 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4417 4418 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4419 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4420 4421 return Success && Diags.getNumErrors() == NumErrorsBefore; 4422 } 4423 4424 static bool ParsePreprocessorOutputArgs(CompilerInvocation &Res, 4425 PreprocessorOutputOptions &Opts, 4426 ArgList &Args, DiagnosticsEngine &Diags, 4427 frontend::ActionKind Action) { 4428 PreprocessorOutputOptions DummyOpts; 4429 4430 return RoundTrip( 4431 [Action](CompilerInvocation &Res, ArgList &Args, 4432 DiagnosticsEngine &Diags) { 4433 return ParsePreprocessorOutputArgsImpl(Res.getPreprocessorOutputOpts(), 4434 Args, Diags, Action); 4435 }, 4436 [Action](CompilerInvocation &Res, SmallVectorImpl<const char *> &Args, 4437 CompilerInvocation::StringAllocator SA) { 4438 GeneratePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 4439 SA, Action); 4440 }, 4441 [&DummyOpts](CompilerInvocation &Res) { 4442 std::swap(DummyOpts, Res.getPreprocessorOutputOpts()); 4443 }, 4444 Res, Args, Diags, "PreprocessorOutputOptions"); 4445 } 4446 4447 static void GenerateTargetArgs(const TargetOptions &Opts, 4448 SmallVectorImpl<const char *> &Args, 4449 CompilerInvocation::StringAllocator SA) { 4450 const TargetOptions *TargetOpts = &Opts; 4451 #define TARGET_OPTION_WITH_MARSHALLING( \ 4452 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4453 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4454 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4455 MERGER, EXTRACTOR, TABLE_INDEX) \ 4456 GENERATE_OPTION_WITH_MARSHALLING( \ 4457 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4458 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4459 #include "clang/Driver/Options.inc" 4460 #undef TARGET_OPTION_WITH_MARSHALLING 4461 4462 if (!Opts.SDKVersion.empty()) 4463 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4464 SA); 4465 } 4466 4467 static bool ParseTargetArgsImpl(TargetOptions &Opts, ArgList &Args, 4468 DiagnosticsEngine &Diags) { 4469 TargetOptions *TargetOpts = &Opts; 4470 unsigned NumErrorsBefore = Diags.getNumErrors(); 4471 bool Success = true; 4472 4473 #define TARGET_OPTION_WITH_MARSHALLING( \ 4474 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4475 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4476 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4477 MERGER, EXTRACTOR, TABLE_INDEX) \ 4478 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4479 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4480 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4481 MERGER, TABLE_INDEX) 4482 #include "clang/Driver/Options.inc" 4483 #undef TARGET_OPTION_WITH_MARSHALLING 4484 4485 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4486 llvm::VersionTuple Version; 4487 if (Version.tryParse(A->getValue())) 4488 Diags.Report(diag::err_drv_invalid_value) 4489 << A->getAsString(Args) << A->getValue(); 4490 else 4491 Opts.SDKVersion = Version; 4492 } 4493 4494 return Success && Diags.getNumErrors() == NumErrorsBefore; 4495 } 4496 4497 static bool ParseTargetArgs(CompilerInvocation &Res, TargetOptions &Opts, 4498 ArgList &Args, DiagnosticsEngine &Diags) { 4499 auto DummyOpts = std::make_shared<TargetOptions>(); 4500 4501 return RoundTrip( 4502 [](CompilerInvocation &Res, ArgList &Args, 4503 DiagnosticsEngine &Diags) { 4504 return ParseTargetArgsImpl(Res.getTargetOpts(), Args, Diags); 4505 }, 4506 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 4507 CompilerInvocation::StringAllocator SA) { 4508 GenerateTargetArgs(Res.getTargetOpts(), GeneratedArgs, SA); 4509 }, 4510 [&DummyOpts](CompilerInvocation &Res) { 4511 Res.TargetOpts.swap(DummyOpts); 4512 }, 4513 Res, Args, Diags, "TargetArgs"); 4514 } 4515 4516 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 4517 ArrayRef<const char *> CommandLineArgs, 4518 DiagnosticsEngine &Diags, 4519 const char *Argv0) { 4520 bool Success = true; 4521 4522 // Parse the arguments. 4523 const OptTable &Opts = getDriverOptTable(); 4524 const unsigned IncludedFlagsBitmask = options::CC1Option; 4525 unsigned MissingArgIndex, MissingArgCount; 4526 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4527 MissingArgCount, IncludedFlagsBitmask); 4528 LangOptions &LangOpts = *Res.getLangOpts(); 4529 4530 // Check for missing argument error. 4531 if (MissingArgCount) { 4532 Diags.Report(diag::err_drv_missing_argument) 4533 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4534 Success = false; 4535 } 4536 4537 // Issue errors on unknown arguments. 4538 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4539 auto ArgString = A->getAsString(Args); 4540 std::string Nearest; 4541 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4542 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4543 else 4544 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4545 << ArgString << Nearest; 4546 Success = false; 4547 } 4548 4549 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4550 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4551 Success &= ParseAnalyzerArgs(Res, *Res.getAnalyzerOpts(), Args, Diags); 4552 Success &= 4553 ParseDiagnosticArgsRoundTrip(Res, Res.getDiagnosticOpts(), Args, &Diags, 4554 /*DefaultDiagColor=*/false); 4555 Success &= ParseFrontendArgs(Res, Res.getFrontendOpts(), Args, Diags, 4556 LangOpts.IsHeaderFile); 4557 // FIXME: We shouldn't have to pass the DashX option around here 4558 InputKind DashX = Res.getFrontendOpts().DashX; 4559 ParseTargetArgs(Res, Res.getTargetOpts(), Args, Diags); 4560 llvm::Triple T(Res.getTargetOpts().Triple); 4561 ParseHeaderSearchArgs(Res, Res.getHeaderSearchOpts(), Args, Diags, 4562 Res.getFileSystemOpts().WorkingDir); 4563 if (DashX.getFormat() == InputKind::Precompiled || 4564 DashX.getLanguage() == Language::LLVM_IR) { 4565 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4566 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4567 // what the input type is. 4568 if (Args.hasArg(OPT_fobjc_arc)) 4569 LangOpts.ObjCAutoRefCount = 1; 4570 // PIClevel and PIELevel are needed during code generation and this should be 4571 // set regardless of the input type. 4572 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4573 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4574 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4575 Diags, LangOpts.Sanitize); 4576 } else { 4577 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4578 // FIXME: Should we really be calling this for an Language::Asm input? 4579 Success &= ParseLangArgs(Res, LangOpts, Args, DashX, T, 4580 Res.getPreprocessorOpts().Includes, Diags); 4581 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4582 LangOpts.ObjCExceptions = 1; 4583 if (T.isOSDarwin() && DashX.isPreprocessed()) { 4584 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 4585 // preprocessed input as we don't expect it to be used with -std=libc++ 4586 // anyway. 4587 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 4588 } 4589 } 4590 4591 if (LangOpts.CUDA) { 4592 // During CUDA device-side compilation, the aux triple is the 4593 // triple used for host compilation. 4594 if (LangOpts.CUDAIsDevice) 4595 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4596 } 4597 4598 // Set the triple of the host for OpenMP device compile. 4599 if (LangOpts.OpenMPIsDevice) 4600 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4601 4602 Success &= ParseCodeGenArgs(Res, Res.getCodeGenOpts(), Args, DashX, Diags, T, 4603 Res.getFrontendOpts().OutputFile, LangOpts); 4604 4605 // FIXME: Override value name discarding when asan or msan is used because the 4606 // backend passes depend on the name of the alloca in order to print out 4607 // names. 4608 Res.getCodeGenOpts().DiscardValueNames &= 4609 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4610 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4611 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4612 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4613 4614 ParsePreprocessorArgs(Res, Res.getPreprocessorOpts(), Args, Diags, 4615 Res.getFrontendOpts().ProgramAction, 4616 Res.getFrontendOpts()); 4617 ParsePreprocessorOutputArgs(Res, Res.getPreprocessorOutputOpts(), Args, Diags, 4618 Res.getFrontendOpts().ProgramAction); 4619 4620 ParseDependencyOutputArgs(Res, Res.getDependencyOutputOpts(), Args, Diags, 4621 Res.getFrontendOpts().ProgramAction, 4622 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4623 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4624 Res.getDependencyOutputOpts().Targets.empty()) { 4625 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4626 Success = false; 4627 } 4628 4629 // Turn on -Wspir-compat for SPIR target. 4630 if (T.isSPIR()) 4631 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 4632 4633 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4634 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4635 !Res.getLangOpts()->Sanitize.empty()) { 4636 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4637 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4638 } 4639 4640 // Store the command-line for using in the CodeView backend. 4641 Res.getCodeGenOpts().Argv0 = Argv0; 4642 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4643 4644 FixupInvocation(Res, Diags, Args, DashX); 4645 4646 return Success; 4647 } 4648 4649 std::string CompilerInvocation::getModuleHash() const { 4650 // Note: For QoI reasons, the things we use as a hash here should all be 4651 // dumped via the -module-info flag. 4652 using llvm::hash_code; 4653 using llvm::hash_value; 4654 using llvm::hash_combine; 4655 using llvm::hash_combine_range; 4656 4657 // Start the signature with the compiler version. 4658 // FIXME: We'd rather use something more cryptographically sound than 4659 // CityHash, but this will do for now. 4660 hash_code code = hash_value(getClangFullRepositoryVersion()); 4661 4662 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4663 // and getClangFullRepositoryVersion() doesn't include git revision. 4664 code = hash_combine(code, serialization::VERSION_MAJOR, 4665 serialization::VERSION_MINOR); 4666 4667 // Extend the signature with the language options 4668 #define LANGOPT(Name, Bits, Default, Description) \ 4669 code = hash_combine(code, LangOpts->Name); 4670 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4671 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4672 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4673 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4674 #include "clang/Basic/LangOptions.def" 4675 4676 for (StringRef Feature : LangOpts->ModuleFeatures) 4677 code = hash_combine(code, Feature); 4678 4679 code = hash_combine(code, LangOpts->ObjCRuntime); 4680 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4681 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4682 4683 // Extend the signature with the target options. 4684 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4685 TargetOpts->TuneCPU, TargetOpts->ABI); 4686 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4687 code = hash_combine(code, FeatureAsWritten); 4688 4689 // Extend the signature with preprocessor options. 4690 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4691 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4692 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4693 4694 for (const auto &I : getPreprocessorOpts().Macros) { 4695 // If we're supposed to ignore this macro for the purposes of modules, 4696 // don't put it into the hash. 4697 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4698 // Check whether we're ignoring this macro. 4699 StringRef MacroDef = I.first; 4700 if (hsOpts.ModulesIgnoreMacros.count( 4701 llvm::CachedHashString(MacroDef.split('=').first))) 4702 continue; 4703 } 4704 4705 code = hash_combine(code, I.first, I.second); 4706 } 4707 4708 // Extend the signature with the sysroot and other header search options. 4709 code = hash_combine(code, hsOpts.Sysroot, 4710 hsOpts.ModuleFormat, 4711 hsOpts.UseDebugInfo, 4712 hsOpts.UseBuiltinIncludes, 4713 hsOpts.UseStandardSystemIncludes, 4714 hsOpts.UseStandardCXXIncludes, 4715 hsOpts.UseLibcxx, 4716 hsOpts.ModulesValidateDiagnosticOptions); 4717 code = hash_combine(code, hsOpts.ResourceDir); 4718 4719 if (hsOpts.ModulesStrictContextHash) { 4720 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4721 hsOpts.SystemHeaderPrefixes.end()); 4722 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4723 hsOpts.UserEntries.end()); 4724 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4725 hsOpts.UserEntries.size(), UEC); 4726 4727 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4728 #define DIAGOPT(Name, Bits, Default) \ 4729 code = hash_combine(code, diagOpts.Name); 4730 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4731 code = hash_combine(code, diagOpts.get##Name()); 4732 #include "clang/Basic/DiagnosticOptions.def" 4733 #undef DIAGOPT 4734 #undef ENUM_DIAGOPT 4735 } 4736 4737 // Extend the signature with the user build path. 4738 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4739 4740 // Extend the signature with the module file extensions. 4741 const FrontendOptions &frontendOpts = getFrontendOpts(); 4742 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4743 code = ext->hashExtension(code); 4744 } 4745 4746 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4747 // affects the debug info in the PCM. 4748 if (getCodeGenOpts().DebugTypeExtRefs) 4749 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4750 code = hash_combine(code, KeyValue.first, KeyValue.second); 4751 4752 // Extend the signature with the enabled sanitizers, if at least one is 4753 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4754 SanitizerSet SanHash = LangOpts->Sanitize; 4755 SanHash.clear(getPPTransparentSanitizers()); 4756 if (!SanHash.empty()) 4757 code = hash_combine(code, SanHash.Mask); 4758 4759 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4760 } 4761 4762 void CompilerInvocation::generateCC1CommandLine( 4763 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4764 llvm::Triple T(TargetOpts->Triple); 4765 4766 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4767 GenerateMigratorArgs(MigratorOpts, Args, SA); 4768 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4769 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4770 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4771 GenerateTargetArgs(*TargetOpts, Args, SA); 4772 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4773 GenerateLangArgs(*LangOpts, Args, SA, T); 4774 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4775 &*LangOpts); 4776 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4777 CodeGenOpts); 4778 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4779 FrontendOpts.ProgramAction); 4780 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4781 } 4782 4783 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4784 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4785 DiagnosticsEngine &Diags) { 4786 return createVFSFromCompilerInvocation(CI, Diags, 4787 llvm::vfs::getRealFileSystem()); 4788 } 4789 4790 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4791 clang::createVFSFromCompilerInvocation( 4792 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4793 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4794 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4795 return BaseFS; 4796 4797 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4798 // earlier vfs files are on the bottom 4799 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4800 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4801 Result->getBufferForFile(File); 4802 if (!Buffer) { 4803 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4804 continue; 4805 } 4806 4807 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4808 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4809 /*DiagContext*/ nullptr, Result); 4810 if (!FS) { 4811 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4812 continue; 4813 } 4814 4815 Result = FS; 4816 } 4817 return Result; 4818 } 4819