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