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/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <memory> 98 #include <string> 99 #include <tuple> 100 #include <type_traits> 101 #include <utility> 102 #include <vector> 103 104 using namespace clang; 105 using namespace driver; 106 using namespace options; 107 using namespace llvm::opt; 108 109 //===----------------------------------------------------------------------===// 110 // Initialization. 111 //===----------------------------------------------------------------------===// 112 113 CompilerInvocationRefBase::CompilerInvocationRefBase() 114 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 115 DiagnosticOpts(new DiagnosticOptions()), 116 HeaderSearchOpts(new HeaderSearchOptions()), 117 PreprocessorOpts(new PreprocessorOptions()), 118 AnalyzerOpts(new AnalyzerOptions()) {} 119 120 CompilerInvocationRefBase::CompilerInvocationRefBase( 121 const CompilerInvocationRefBase &X) 122 : LangOpts(new LangOptions(*X.getLangOpts())), 123 TargetOpts(new TargetOptions(X.getTargetOpts())), 124 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 125 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 126 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 127 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase( 130 CompilerInvocationRefBase &&X) = default; 131 132 CompilerInvocationRefBase & 133 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 134 LangOpts.swap(X.LangOpts); 135 TargetOpts.swap(X.TargetOpts); 136 DiagnosticOpts.swap(X.DiagnosticOpts); 137 HeaderSearchOpts.swap(X.HeaderSearchOpts); 138 PreprocessorOpts.swap(X.PreprocessorOpts); 139 AnalyzerOpts.swap(X.AnalyzerOpts); 140 return *this; 141 } 142 143 CompilerInvocationRefBase & 144 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 145 146 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 147 148 //===----------------------------------------------------------------------===// 149 // Normalizers 150 //===----------------------------------------------------------------------===// 151 152 #define SIMPLE_ENUM_VALUE_TABLE 153 #include "clang/Driver/Options.inc" 154 #undef SIMPLE_ENUM_VALUE_TABLE 155 156 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 157 unsigned TableIndex, 158 const ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 if (Args.hasArg(Opt)) 161 return true; 162 return None; 163 } 164 165 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 166 const ArgList &Args, 167 DiagnosticsEngine &) { 168 if (Args.hasArg(Opt)) 169 return false; 170 return None; 171 } 172 173 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 174 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 175 /// unnecessary template instantiations and just ignore it with a variadic 176 /// argument. 177 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 178 const char *Spelling, 179 CompilerInvocation::StringAllocator, 180 Option::OptionClass, unsigned, /*T*/...) { 181 Args.push_back(Spelling); 182 } 183 184 template <typename T> static constexpr bool is_uint64_t_convertible() { 185 return !std::is_same<T, uint64_t>::value && 186 llvm::is_integral_or_enum<T>::value; 187 } 188 189 template <typename T, 190 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 191 static auto makeFlagToValueNormalizer(T Value) { 192 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 193 DiagnosticsEngine &) -> Optional<T> { 194 if (Args.hasArg(Opt)) 195 return Value; 196 return None; 197 }; 198 } 199 200 template <typename T, 201 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 202 static auto makeFlagToValueNormalizer(T Value) { 203 return makeFlagToValueNormalizer(uint64_t(Value)); 204 } 205 206 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 207 OptSpecifier OtherOpt) { 208 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 209 const ArgList &Args, 210 DiagnosticsEngine &) -> Optional<bool> { 211 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 212 return A->getOption().matches(Opt) ? Value : OtherValue; 213 } 214 return None; 215 }; 216 } 217 218 static auto makeBooleanOptionDenormalizer(bool Value) { 219 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 220 CompilerInvocation::StringAllocator, Option::OptionClass, 221 unsigned, bool KeyPath) { 222 if (KeyPath == Value) 223 Args.push_back(Spelling); 224 }; 225 } 226 227 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 228 const char *Spelling, 229 CompilerInvocation::StringAllocator SA, 230 Option::OptionClass OptClass, unsigned, 231 const Twine &Value) { 232 switch (OptClass) { 233 case Option::SeparateClass: 234 case Option::JoinedOrSeparateClass: 235 case Option::JoinedAndSeparateClass: 236 Args.push_back(Spelling); 237 Args.push_back(SA(Value)); 238 break; 239 case Option::JoinedClass: 240 case Option::CommaJoinedClass: 241 Args.push_back(SA(Twine(Spelling) + Value)); 242 break; 243 default: 244 llvm_unreachable("Cannot denormalize an option with option class " 245 "incompatible with string denormalization."); 246 } 247 } 248 249 template <typename T> 250 static void 251 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 252 CompilerInvocation::StringAllocator SA, 253 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 254 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 255 } 256 257 static Optional<SimpleEnumValue> 258 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 259 for (int I = 0, E = Table.Size; I != E; ++I) 260 if (Name == Table.Table[I].Name) 261 return Table.Table[I]; 262 263 return None; 264 } 265 266 static Optional<SimpleEnumValue> 267 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 268 for (int I = 0, E = Table.Size; I != E; ++I) 269 if (Value == Table.Table[I].Value) 270 return Table.Table[I]; 271 272 return None; 273 } 274 275 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 276 unsigned TableIndex, 277 const ArgList &Args, 278 DiagnosticsEngine &Diags) { 279 assert(TableIndex < SimpleEnumValueTablesSize); 280 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 281 282 auto *Arg = Args.getLastArg(Opt); 283 if (!Arg) 284 return None; 285 286 StringRef ArgValue = Arg->getValue(); 287 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 288 return MaybeEnumVal->Value; 289 290 Diags.Report(diag::err_drv_invalid_value) 291 << Arg->getAsString(Args) << ArgValue; 292 return None; 293 } 294 295 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 296 const char *Spelling, 297 CompilerInvocation::StringAllocator SA, 298 Option::OptionClass OptClass, 299 unsigned TableIndex, unsigned Value) { 300 assert(TableIndex < SimpleEnumValueTablesSize); 301 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 302 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 303 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 304 MaybeEnumVal->Name); 305 } else { 306 llvm_unreachable("The simple enum value was not correctly defined in " 307 "the tablegen option description"); 308 } 309 } 310 311 template <typename T> 312 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 313 const char *Spelling, 314 CompilerInvocation::StringAllocator SA, 315 Option::OptionClass OptClass, 316 unsigned TableIndex, T Value) { 317 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 318 static_cast<unsigned>(Value)); 319 } 320 321 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 322 const ArgList &Args, 323 DiagnosticsEngine &Diags) { 324 auto *Arg = Args.getLastArg(Opt); 325 if (!Arg) 326 return None; 327 return std::string(Arg->getValue()); 328 } 329 330 template <typename IntTy> 331 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 332 const ArgList &Args, 333 DiagnosticsEngine &Diags) { 334 auto *Arg = Args.getLastArg(Opt); 335 if (!Arg) 336 return None; 337 IntTy Res; 338 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 339 Diags.Report(diag::err_drv_invalid_int_value) 340 << Arg->getAsString(Args) << Arg->getValue(); 341 return None; 342 } 343 return Res; 344 } 345 346 static Optional<std::vector<std::string>> 347 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 348 DiagnosticsEngine &) { 349 return Args.getAllArgValues(Opt); 350 } 351 352 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 353 const char *Spelling, 354 CompilerInvocation::StringAllocator SA, 355 Option::OptionClass OptClass, 356 unsigned TableIndex, 357 const std::vector<std::string> &Values) { 358 switch (OptClass) { 359 case Option::CommaJoinedClass: { 360 std::string CommaJoinedValue; 361 if (!Values.empty()) { 362 CommaJoinedValue.append(Values.front()); 363 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 364 CommaJoinedValue.append(","); 365 CommaJoinedValue.append(Value); 366 } 367 } 368 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 369 TableIndex, CommaJoinedValue); 370 break; 371 } 372 case Option::JoinedClass: 373 case Option::SeparateClass: 374 case Option::JoinedOrSeparateClass: 375 for (const std::string &Value : Values) 376 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 377 break; 378 default: 379 llvm_unreachable("Cannot denormalize an option with option class " 380 "incompatible with string vector denormalization."); 381 } 382 } 383 384 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 385 const ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 auto *Arg = Args.getLastArg(Opt); 388 if (!Arg) 389 return None; 390 return llvm::Triple::normalize(Arg->getValue()); 391 } 392 393 template <typename T, typename U> 394 static T mergeForwardValue(T KeyPath, U Value) { 395 return static_cast<T>(Value); 396 } 397 398 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 399 return KeyPath | Value; 400 } 401 402 template <typename T> static T extractForwardValue(T KeyPath) { 403 return KeyPath; 404 } 405 406 template <typename T, typename U, U Value> 407 static T extractMaskValue(T KeyPath) { 408 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 409 } 410 411 #define PARSE_OPTION_WITH_MARSHALLING( \ 412 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 413 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 414 if ((FLAGS)&options::CC1Option) { \ 415 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 416 if (IMPLIED_CHECK) \ 417 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 418 if (SHOULD_PARSE) \ 419 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 420 KEYPATH = \ 421 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 422 } 423 424 // Capture the extracted value as a lambda argument to avoid potential issues 425 // with lifetime extension of the reference. 426 #define GENERATE_OPTION_WITH_MARSHALLING( \ 427 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 428 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 429 TABLE_INDEX) \ 430 if ((FLAGS)&options::CC1Option) { \ 431 [&](const auto &Extracted) { \ 432 if (ALWAYS_EMIT || \ 433 (Extracted != \ 434 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 435 : (DEFAULT_VALUE)))) \ 436 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 437 TABLE_INDEX, Extracted); \ 438 }(EXTRACTOR(KEYPATH)); \ 439 } 440 441 static const StringRef GetInputKindName(InputKind IK); 442 443 static bool FixupInvocation(CompilerInvocation &Invocation, 444 DiagnosticsEngine &Diags, const ArgList &Args, 445 InputKind IK) { 446 unsigned NumErrorsBefore = Diags.getNumErrors(); 447 448 LangOptions &LangOpts = *Invocation.getLangOpts(); 449 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 450 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 451 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 452 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 453 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 454 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 455 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 456 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 457 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 458 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 459 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 460 LangOpts.CurrentModule = LangOpts.ModuleName; 461 462 llvm::Triple T(TargetOpts.Triple); 463 llvm::Triple::ArchType Arch = T.getArch(); 464 465 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 466 467 if (LangOpts.getExceptionHandling() != 468 LangOptions::ExceptionHandlingKind::None && 469 T.isWindowsMSVCEnvironment()) 470 Diags.Report(diag::err_fe_invalid_exception_model) 471 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 472 473 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 474 Diags.Report(diag::warn_c_kext); 475 476 if (Args.hasArg(OPT_fconcepts_ts)) 477 Diags.Report(diag::warn_fe_concepts_ts_flag); 478 479 if (LangOpts.NewAlignOverride && 480 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 481 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 482 Diags.Report(diag::err_fe_invalid_alignment) 483 << A->getAsString(Args) << A->getValue(); 484 LangOpts.NewAlignOverride = 0; 485 } 486 487 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 488 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 489 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 490 << "-fsycl-is-host"; 491 492 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 493 Diags.Report(diag::err_drv_argument_not_allowed_with) 494 << "-fgnu89-inline" << GetInputKindName(IK); 495 496 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 497 Diags.Report(diag::warn_ignored_hip_only_option) 498 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 499 500 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 501 Diags.Report(diag::warn_ignored_hip_only_option) 502 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 503 504 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 505 // This option should be deprecated for CL > 1.0 because 506 // this option was added for compatibility with OpenCL 1.0. 507 if (Args.getLastArg(OPT_cl_strict_aliasing) && 508 (LangOpts.getOpenCLCompatibleVersion() > 100)) 509 Diags.Report(diag::warn_option_invalid_ocl_version) 510 << LangOpts.getOpenCLVersionString() 511 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 512 513 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 514 auto DefaultCC = LangOpts.getDefaultCallingConv(); 515 516 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 517 DefaultCC == LangOptions::DCC_StdCall) && 518 Arch != llvm::Triple::x86; 519 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 520 DefaultCC == LangOptions::DCC_RegCall) && 521 !T.isX86(); 522 if (emitError) 523 Diags.Report(diag::err_drv_argument_not_allowed_with) 524 << A->getSpelling() << T.getTriple(); 525 } 526 527 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 528 Diags.Report(diag::err_drv_argument_only_allowed_with) 529 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 530 << "-fno-legacy-pass-manager"; 531 532 return Diags.getNumErrors() == NumErrorsBefore; 533 } 534 535 //===----------------------------------------------------------------------===// 536 // Deserialization (from args) 537 //===----------------------------------------------------------------------===// 538 539 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 540 DiagnosticsEngine &Diags) { 541 unsigned DefaultOpt = llvm::CodeGenOpt::None; 542 if ((IK.getLanguage() == Language::OpenCL || 543 IK.getLanguage() == Language::OpenCLCXX) && 544 !Args.hasArg(OPT_cl_opt_disable)) 545 DefaultOpt = llvm::CodeGenOpt::Default; 546 547 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 548 if (A->getOption().matches(options::OPT_O0)) 549 return llvm::CodeGenOpt::None; 550 551 if (A->getOption().matches(options::OPT_Ofast)) 552 return llvm::CodeGenOpt::Aggressive; 553 554 assert(A->getOption().matches(options::OPT_O)); 555 556 StringRef S(A->getValue()); 557 if (S == "s" || S == "z") 558 return llvm::CodeGenOpt::Default; 559 560 if (S == "g") 561 return llvm::CodeGenOpt::Less; 562 563 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 564 } 565 566 return DefaultOpt; 567 } 568 569 static unsigned getOptimizationLevelSize(ArgList &Args) { 570 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 571 if (A->getOption().matches(options::OPT_O)) { 572 switch (A->getValue()[0]) { 573 default: 574 return 0; 575 case 's': 576 return 1; 577 case 'z': 578 return 2; 579 } 580 } 581 } 582 return 0; 583 } 584 585 static void GenerateArg(SmallVectorImpl<const char *> &Args, 586 llvm::opt::OptSpecifier OptSpecifier, 587 CompilerInvocation::StringAllocator SA) { 588 Option Opt = getDriverOptTable().getOption(OptSpecifier); 589 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 590 Option::OptionClass::FlagClass, 0); 591 } 592 593 static void GenerateArg(SmallVectorImpl<const char *> &Args, 594 llvm::opt::OptSpecifier OptSpecifier, 595 const Twine &Value, 596 CompilerInvocation::StringAllocator SA) { 597 Option Opt = getDriverOptTable().getOption(OptSpecifier); 598 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 599 Opt.getKind(), 0, Value); 600 } 601 602 // Parse command line arguments into CompilerInvocation. 603 using ParseFn = 604 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 605 DiagnosticsEngine &, const char *)>; 606 607 // Generate command line arguments from CompilerInvocation. 608 using GenerateFn = llvm::function_ref<void( 609 CompilerInvocation &, SmallVectorImpl<const char *> &, 610 CompilerInvocation::StringAllocator)>; 611 612 // May perform round-trip of command line arguments. By default, the round-trip 613 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 614 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 615 // command line flags. 616 // During round-trip, the command line arguments are parsed into a dummy 617 // instance of CompilerInvocation which is used to generate the command line 618 // arguments again. The real CompilerInvocation instance is then created by 619 // parsing the generated arguments, not the original ones. 620 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 621 CompilerInvocation &RealInvocation, 622 CompilerInvocation &DummyInvocation, 623 ArrayRef<const char *> CommandLineArgs, 624 DiagnosticsEngine &Diags, const char *Argv0) { 625 // FIXME: Switch to '#ifndef NDEBUG' when possible. 626 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 627 bool DoRoundTripDefault = true; 628 #else 629 bool DoRoundTripDefault = false; 630 #endif 631 632 bool DoRoundTrip = DoRoundTripDefault; 633 for (const auto *Arg : CommandLineArgs) { 634 if (Arg == StringRef("-round-trip-args")) 635 DoRoundTrip = true; 636 if (Arg == StringRef("-no-round-trip-args")) 637 DoRoundTrip = false; 638 } 639 640 // If round-trip was not requested, simply run the parser with the real 641 // invocation diagnostics. 642 if (!DoRoundTrip) 643 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 644 645 // Serializes quoted (and potentially escaped) arguments. 646 auto SerializeArgs = [](ArrayRef<const char *> Args) { 647 std::string Buffer; 648 llvm::raw_string_ostream OS(Buffer); 649 for (const char *Arg : Args) { 650 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 651 OS << ' '; 652 } 653 OS.flush(); 654 return Buffer; 655 }; 656 657 // Setup a dummy DiagnosticsEngine. 658 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 659 DummyDiags.setClient(new TextDiagnosticBuffer()); 660 661 // Run the first parse on the original arguments with the dummy invocation and 662 // diagnostics. 663 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 664 DummyDiags.getNumWarnings() != 0) { 665 // If the first parse did not succeed, it must be user mistake (invalid 666 // command line arguments). We won't be able to generate arguments that 667 // would reproduce the same result. Let's fail again with the real 668 // invocation and diagnostics, so all side-effects of parsing are visible. 669 unsigned NumWarningsBefore = Diags.getNumWarnings(); 670 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 671 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 672 return Success; 673 674 // Parse with original options and diagnostics succeeded even though it 675 // shouldn't have. Something is off. 676 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 677 Diags.Report(diag::note_cc1_round_trip_original) 678 << SerializeArgs(CommandLineArgs); 679 return false; 680 } 681 682 // Setup string allocator. 683 llvm::BumpPtrAllocator Alloc; 684 llvm::StringSaver StringPool(Alloc); 685 auto SA = [&StringPool](const Twine &Arg) { 686 return StringPool.save(Arg).data(); 687 }; 688 689 // Generate arguments from the dummy invocation. If Generate is the 690 // inverse of Parse, the newly generated arguments must have the same 691 // semantics as the original. 692 SmallVector<const char *> GeneratedArgs1; 693 Generate(DummyInvocation, GeneratedArgs1, SA); 694 695 // Run the second parse, now on the generated arguments, and with the real 696 // invocation and diagnostics. The result is what we will end up using for the 697 // rest of compilation, so if Generate is not inverse of Parse, something down 698 // the line will break. 699 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 700 701 // The first parse on original arguments succeeded, but second parse of 702 // generated arguments failed. Something must be wrong with the generator. 703 if (!Success2) { 704 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 705 Diags.Report(diag::note_cc1_round_trip_generated) 706 << 1 << SerializeArgs(GeneratedArgs1); 707 return false; 708 } 709 710 // Generate arguments again, this time from the options we will end up using 711 // for the rest of the compilation. 712 SmallVector<const char *> GeneratedArgs2; 713 Generate(RealInvocation, GeneratedArgs2, SA); 714 715 // Compares two lists of generated arguments. 716 auto Equal = [](const ArrayRef<const char *> A, 717 const ArrayRef<const char *> B) { 718 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 719 [](const char *AElem, const char *BElem) { 720 return StringRef(AElem) == StringRef(BElem); 721 }); 722 }; 723 724 // If we generated different arguments from what we assume are two 725 // semantically equivalent CompilerInvocations, the Generate function may 726 // be non-deterministic. 727 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 728 Diags.Report(diag::err_cc1_round_trip_mismatch); 729 Diags.Report(diag::note_cc1_round_trip_generated) 730 << 1 << SerializeArgs(GeneratedArgs1); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 2 << SerializeArgs(GeneratedArgs2); 733 return false; 734 } 735 736 Diags.Report(diag::remark_cc1_round_trip_generated) 737 << 1 << SerializeArgs(GeneratedArgs1); 738 Diags.Report(diag::remark_cc1_round_trip_generated) 739 << 2 << SerializeArgs(GeneratedArgs2); 740 741 return Success2; 742 } 743 744 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 745 OptSpecifier GroupWithValue, 746 std::vector<std::string> &Diagnostics) { 747 for (auto *A : Args.filtered(Group)) { 748 if (A->getOption().getKind() == Option::FlagClass) { 749 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 750 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 751 Diagnostics.push_back( 752 std::string(A->getOption().getName().drop_front(1))); 753 } else if (A->getOption().matches(GroupWithValue)) { 754 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 755 // group. Add only the group name to the diagnostics. 756 Diagnostics.push_back( 757 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 758 } else { 759 // Otherwise, add its value (for OPT_W_Joined and similar). 760 Diagnostics.push_back(A->getValue()); 761 } 762 } 763 } 764 765 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 766 // it won't verify the input. 767 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 768 DiagnosticsEngine *Diags); 769 770 static void getAllNoBuiltinFuncValues(ArgList &Args, 771 std::vector<std::string> &Funcs) { 772 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 773 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 774 return Builtin::Context::isBuiltinFunc(FuncName); 775 }); 776 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 777 } 778 779 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 780 SmallVectorImpl<const char *> &Args, 781 CompilerInvocation::StringAllocator SA) { 782 const AnalyzerOptions *AnalyzerOpts = &Opts; 783 784 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 785 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 786 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 787 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 788 MERGER, EXTRACTOR, TABLE_INDEX) \ 789 GENERATE_OPTION_WITH_MARSHALLING( \ 790 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 791 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 792 #include "clang/Driver/Options.inc" 793 #undef ANALYZER_OPTION_WITH_MARSHALLING 794 795 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 796 switch (Opts.AnalysisStoreOpt) { 797 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 798 case NAME##Model: \ 799 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 800 break; 801 #include "clang/StaticAnalyzer/Core/Analyses.def" 802 default: 803 llvm_unreachable("Tried to generate unknown analysis store."); 804 } 805 } 806 807 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 808 switch (Opts.AnalysisConstraintsOpt) { 809 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 810 case NAME##Model: \ 811 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 812 break; 813 #include "clang/StaticAnalyzer/Core/Analyses.def" 814 default: 815 llvm_unreachable("Tried to generate unknown analysis constraint."); 816 } 817 } 818 819 if (Opts.AnalysisDiagOpt != PD_HTML) { 820 switch (Opts.AnalysisDiagOpt) { 821 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 822 case PD_##NAME: \ 823 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 824 break; 825 #include "clang/StaticAnalyzer/Core/Analyses.def" 826 default: 827 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 828 } 829 } 830 831 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 832 switch (Opts.AnalysisPurgeOpt) { 833 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 834 case NAME: \ 835 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 836 break; 837 #include "clang/StaticAnalyzer/Core/Analyses.def" 838 default: 839 llvm_unreachable("Tried to generate unknown analysis purge mode."); 840 } 841 } 842 843 if (Opts.InliningMode != NoRedundancy) { 844 switch (Opts.InliningMode) { 845 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 846 case NAME: \ 847 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 848 break; 849 #include "clang/StaticAnalyzer/Core/Analyses.def" 850 default: 851 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 852 } 853 } 854 855 for (const auto &CP : Opts.CheckersAndPackages) { 856 OptSpecifier Opt = 857 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 858 GenerateArg(Args, Opt, CP.first, SA); 859 } 860 861 AnalyzerOptions ConfigOpts; 862 parseAnalyzerConfigs(ConfigOpts, nullptr); 863 864 for (const auto &C : Opts.Config) { 865 // Don't generate anything that came from parseAnalyzerConfigs. It would be 866 // redundant and may not be valid on the command line. 867 auto Entry = ConfigOpts.Config.find(C.getKey()); 868 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 869 continue; 870 871 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 872 } 873 874 // Nothing to generate for FullCompilerInvocation. 875 } 876 877 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 878 DiagnosticsEngine &Diags) { 879 unsigned NumErrorsBefore = Diags.getNumErrors(); 880 881 AnalyzerOptions *AnalyzerOpts = &Opts; 882 883 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 884 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 885 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 886 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 887 MERGER, EXTRACTOR, TABLE_INDEX) \ 888 PARSE_OPTION_WITH_MARSHALLING( \ 889 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 890 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 891 #include "clang/Driver/Options.inc" 892 #undef ANALYZER_OPTION_WITH_MARSHALLING 893 894 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 895 StringRef Name = A->getValue(); 896 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 897 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 898 .Case(CMDFLAG, NAME##Model) 899 #include "clang/StaticAnalyzer/Core/Analyses.def" 900 .Default(NumStores); 901 if (Value == NumStores) { 902 Diags.Report(diag::err_drv_invalid_value) 903 << A->getAsString(Args) << Name; 904 } else { 905 Opts.AnalysisStoreOpt = Value; 906 } 907 } 908 909 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 910 StringRef Name = A->getValue(); 911 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 912 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 913 .Case(CMDFLAG, NAME##Model) 914 #include "clang/StaticAnalyzer/Core/Analyses.def" 915 .Default(NumConstraints); 916 if (Value == NumConstraints) { 917 Diags.Report(diag::err_drv_invalid_value) 918 << A->getAsString(Args) << Name; 919 } else { 920 Opts.AnalysisConstraintsOpt = Value; 921 } 922 } 923 924 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 925 StringRef Name = A->getValue(); 926 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 927 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 928 .Case(CMDFLAG, PD_##NAME) 929 #include "clang/StaticAnalyzer/Core/Analyses.def" 930 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 931 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 932 Diags.Report(diag::err_drv_invalid_value) 933 << A->getAsString(Args) << Name; 934 } else { 935 Opts.AnalysisDiagOpt = Value; 936 } 937 } 938 939 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 940 StringRef Name = A->getValue(); 941 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 942 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 943 .Case(CMDFLAG, NAME) 944 #include "clang/StaticAnalyzer/Core/Analyses.def" 945 .Default(NumPurgeModes); 946 if (Value == NumPurgeModes) { 947 Diags.Report(diag::err_drv_invalid_value) 948 << A->getAsString(Args) << Name; 949 } else { 950 Opts.AnalysisPurgeOpt = Value; 951 } 952 } 953 954 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 955 StringRef Name = A->getValue(); 956 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 957 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 958 .Case(CMDFLAG, NAME) 959 #include "clang/StaticAnalyzer/Core/Analyses.def" 960 .Default(NumInliningModes); 961 if (Value == NumInliningModes) { 962 Diags.Report(diag::err_drv_invalid_value) 963 << A->getAsString(Args) << Name; 964 } else { 965 Opts.InliningMode = Value; 966 } 967 } 968 969 Opts.CheckersAndPackages.clear(); 970 for (const Arg *A : 971 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 972 A->claim(); 973 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 974 // We can have a list of comma separated checker names, e.g: 975 // '-analyzer-checker=cocoa,unix' 976 StringRef CheckerAndPackageList = A->getValue(); 977 SmallVector<StringRef, 16> CheckersAndPackages; 978 CheckerAndPackageList.split(CheckersAndPackages, ","); 979 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 980 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 981 IsEnabled); 982 } 983 984 // Go through the analyzer configuration options. 985 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 986 987 // We can have a list of comma separated config names, e.g: 988 // '-analyzer-config key1=val1,key2=val2' 989 StringRef configList = A->getValue(); 990 SmallVector<StringRef, 4> configVals; 991 configList.split(configVals, ","); 992 for (const auto &configVal : configVals) { 993 StringRef key, val; 994 std::tie(key, val) = configVal.split("="); 995 if (val.empty()) { 996 Diags.Report(SourceLocation(), 997 diag::err_analyzer_config_no_value) << configVal; 998 break; 999 } 1000 if (val.find('=') != StringRef::npos) { 1001 Diags.Report(SourceLocation(), 1002 diag::err_analyzer_config_multiple_values) 1003 << configVal; 1004 break; 1005 } 1006 1007 // TODO: Check checker options too, possibly in CheckerRegistry. 1008 // Leave unknown non-checker configs unclaimed. 1009 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1010 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1011 Diags.Report(diag::err_analyzer_config_unknown) << key; 1012 continue; 1013 } 1014 1015 A->claim(); 1016 Opts.Config[key] = std::string(val); 1017 } 1018 } 1019 1020 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1021 parseAnalyzerConfigs(Opts, &Diags); 1022 else 1023 parseAnalyzerConfigs(Opts, nullptr); 1024 1025 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1026 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1027 if (i != 0) 1028 os << " "; 1029 os << Args.getArgString(i); 1030 } 1031 os.flush(); 1032 1033 return Diags.getNumErrors() == NumErrorsBefore; 1034 } 1035 1036 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1037 StringRef OptionName, StringRef DefaultVal) { 1038 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1039 } 1040 1041 static void initOption(AnalyzerOptions::ConfigTable &Config, 1042 DiagnosticsEngine *Diags, 1043 StringRef &OptionField, StringRef Name, 1044 StringRef DefaultVal) { 1045 // String options may be known to invalid (e.g. if the expected string is a 1046 // file name, but the file does not exist), those will have to be checked in 1047 // parseConfigs. 1048 OptionField = getStringOption(Config, Name, DefaultVal); 1049 } 1050 1051 static void initOption(AnalyzerOptions::ConfigTable &Config, 1052 DiagnosticsEngine *Diags, 1053 bool &OptionField, StringRef Name, bool DefaultVal) { 1054 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1055 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1056 .Case("true", true) 1057 .Case("false", false) 1058 .Default(None); 1059 1060 if (!PossiblyInvalidVal) { 1061 if (Diags) 1062 Diags->Report(diag::err_analyzer_config_invalid_input) 1063 << Name << "a boolean"; 1064 else 1065 OptionField = DefaultVal; 1066 } else 1067 OptionField = PossiblyInvalidVal.getValue(); 1068 } 1069 1070 static void initOption(AnalyzerOptions::ConfigTable &Config, 1071 DiagnosticsEngine *Diags, 1072 unsigned &OptionField, StringRef Name, 1073 unsigned DefaultVal) { 1074 1075 OptionField = DefaultVal; 1076 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1077 .getAsInteger(0, OptionField); 1078 if (Diags && HasFailed) 1079 Diags->Report(diag::err_analyzer_config_invalid_input) 1080 << Name << "an unsigned"; 1081 } 1082 1083 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1084 DiagnosticsEngine *Diags) { 1085 // TODO: There's no need to store the entire configtable, it'd be plenty 1086 // enough tostore checker options. 1087 1088 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1089 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1090 1091 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1092 SHALLOW_VAL, DEEP_VAL) \ 1093 switch (AnOpts.getUserMode()) { \ 1094 case UMK_Shallow: \ 1095 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1096 break; \ 1097 case UMK_Deep: \ 1098 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1099 break; \ 1100 } \ 1101 1102 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1103 #undef ANALYZER_OPTION 1104 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1105 1106 // At this point, AnalyzerOptions is configured. Let's validate some options. 1107 1108 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1109 // The current approach only validates the registered checkers which does not 1110 // contain the runtime enabled checkers and optimally we would validate both. 1111 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1112 std::vector<StringRef> Checkers = 1113 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1114 std::vector<StringRef> Packages = 1115 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1116 1117 SmallVector<StringRef, 16> CheckersAndPackages; 1118 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1119 1120 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1121 if (Diags) { 1122 bool IsChecker = CheckerOrPackage.contains('.'); 1123 bool IsValidName = 1124 IsChecker 1125 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1126 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1127 1128 if (!IsValidName) 1129 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1130 << CheckerOrPackage; 1131 } 1132 1133 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1134 } 1135 } 1136 1137 if (!Diags) 1138 return; 1139 1140 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1141 Diags->Report(diag::err_analyzer_config_invalid_input) 1142 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1143 1144 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1145 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1146 << "a filename"; 1147 1148 if (!AnOpts.ModelPath.empty() && 1149 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1150 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1151 << "a filename"; 1152 } 1153 1154 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1155 static void 1156 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1157 CompilerInvocation::StringAllocator SA, 1158 OptSpecifier OptEQ, StringRef Name, 1159 const CodeGenOptions::OptRemark &Remark) { 1160 if (Remark.hasValidPattern()) { 1161 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1162 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1163 GenerateArg(Args, OPT_R_Joined, Name, SA); 1164 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1165 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1166 } 1167 } 1168 1169 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1170 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1171 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1172 static CodeGenOptions::OptRemark 1173 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1174 OptSpecifier OptEQ, StringRef Name) { 1175 CodeGenOptions::OptRemark Result; 1176 1177 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1178 StringRef Pattern) { 1179 Result.Pattern = Pattern.str(); 1180 1181 std::string RegexError; 1182 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1183 if (!Result.Regex->isValid(RegexError)) { 1184 Diags.Report(diag::err_drv_optimization_remark_pattern) 1185 << RegexError << A->getAsString(Args); 1186 return false; 1187 } 1188 1189 return true; 1190 }; 1191 1192 for (Arg *A : Args) { 1193 if (A->getOption().matches(OPT_R_Joined)) { 1194 StringRef Value = A->getValue(); 1195 1196 if (Value == Name) 1197 Result.Kind = CodeGenOptions::RK_Enabled; 1198 else if (Value == "everything") 1199 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1200 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1201 Result.Kind = CodeGenOptions::RK_Disabled; 1202 else if (Value == "no-everything") 1203 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1204 1205 if (Result.Kind == CodeGenOptions::RK_Disabled || 1206 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1207 Result.Pattern = ""; 1208 Result.Regex = nullptr; 1209 } else { 1210 InitializeResultPattern(A, ".*"); 1211 } 1212 } else if (A->getOption().matches(OptEQ)) { 1213 Result.Kind = CodeGenOptions::RK_WithPattern; 1214 if (!InitializeResultPattern(A, A->getValue())) 1215 return CodeGenOptions::OptRemark(); 1216 } 1217 } 1218 1219 return Result; 1220 } 1221 1222 static bool parseDiagnosticLevelMask(StringRef FlagName, 1223 const std::vector<std::string> &Levels, 1224 DiagnosticsEngine &Diags, 1225 DiagnosticLevelMask &M) { 1226 bool Success = true; 1227 for (const auto &Level : Levels) { 1228 DiagnosticLevelMask const PM = 1229 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1230 .Case("note", DiagnosticLevelMask::Note) 1231 .Case("remark", DiagnosticLevelMask::Remark) 1232 .Case("warning", DiagnosticLevelMask::Warning) 1233 .Case("error", DiagnosticLevelMask::Error) 1234 .Default(DiagnosticLevelMask::None); 1235 if (PM == DiagnosticLevelMask::None) { 1236 Success = false; 1237 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1238 } 1239 M = M | PM; 1240 } 1241 return Success; 1242 } 1243 1244 static void parseSanitizerKinds(StringRef FlagName, 1245 const std::vector<std::string> &Sanitizers, 1246 DiagnosticsEngine &Diags, SanitizerSet &S) { 1247 for (const auto &Sanitizer : Sanitizers) { 1248 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1249 if (K == SanitizerMask()) 1250 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1251 else 1252 S.set(K, true); 1253 } 1254 } 1255 1256 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1257 SmallVector<StringRef, 4> Values; 1258 serializeSanitizerSet(S, Values); 1259 return Values; 1260 } 1261 1262 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1263 ArgList &Args, DiagnosticsEngine &D, 1264 XRayInstrSet &S) { 1265 llvm::SmallVector<StringRef, 2> BundleParts; 1266 llvm::SplitString(Bundle, BundleParts, ","); 1267 for (const auto &B : BundleParts) { 1268 auto Mask = parseXRayInstrValue(B); 1269 if (Mask == XRayInstrKind::None) 1270 if (B != "none") 1271 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1272 else 1273 S.Mask = Mask; 1274 else if (Mask == XRayInstrKind::All) 1275 S.Mask = Mask; 1276 else 1277 S.set(Mask, true); 1278 } 1279 } 1280 1281 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1282 llvm::SmallVector<StringRef, 2> BundleParts; 1283 serializeXRayInstrValue(S, BundleParts); 1284 std::string Buffer; 1285 llvm::raw_string_ostream OS(Buffer); 1286 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1287 return OS.str(); 1288 } 1289 1290 // Set the profile kind using fprofile-instrument-use-path. 1291 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1292 const Twine &ProfileName) { 1293 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1294 // In error, return silently and let Clang PGOUse report the error message. 1295 if (auto E = ReaderOrErr.takeError()) { 1296 llvm::consumeError(std::move(E)); 1297 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1298 return; 1299 } 1300 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1301 std::move(ReaderOrErr.get()); 1302 if (PGOReader->isIRLevelProfile()) { 1303 if (PGOReader->hasCSIRLevelProfile()) 1304 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1305 else 1306 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1307 } else 1308 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1309 } 1310 1311 void CompilerInvocation::GenerateCodeGenArgs( 1312 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1313 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1314 const LangOptions *LangOpts) { 1315 const CodeGenOptions &CodeGenOpts = Opts; 1316 1317 if (Opts.OptimizationLevel == 0) 1318 GenerateArg(Args, OPT_O0, SA); 1319 else 1320 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1321 1322 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1323 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1324 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1325 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1326 MERGER, EXTRACTOR, TABLE_INDEX) \ 1327 GENERATE_OPTION_WITH_MARSHALLING( \ 1328 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1329 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1330 #include "clang/Driver/Options.inc" 1331 #undef CODEGEN_OPTION_WITH_MARSHALLING 1332 1333 if (Opts.OptimizationLevel > 0) { 1334 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1335 GenerateArg(Args, OPT_finline_functions, SA); 1336 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1337 GenerateArg(Args, OPT_finline_hint_functions, SA); 1338 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1339 GenerateArg(Args, OPT_fno_inline, SA); 1340 } 1341 1342 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1343 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1344 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1345 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1346 1347 Optional<StringRef> DebugInfoVal; 1348 switch (Opts.DebugInfo) { 1349 case codegenoptions::DebugLineTablesOnly: 1350 DebugInfoVal = "line-tables-only"; 1351 break; 1352 case codegenoptions::DebugDirectivesOnly: 1353 DebugInfoVal = "line-directives-only"; 1354 break; 1355 case codegenoptions::DebugInfoConstructor: 1356 DebugInfoVal = "constructor"; 1357 break; 1358 case codegenoptions::LimitedDebugInfo: 1359 DebugInfoVal = "limited"; 1360 break; 1361 case codegenoptions::FullDebugInfo: 1362 DebugInfoVal = "standalone"; 1363 break; 1364 case codegenoptions::UnusedTypeInfo: 1365 DebugInfoVal = "unused-types"; 1366 break; 1367 case codegenoptions::NoDebugInfo: // default value 1368 DebugInfoVal = None; 1369 break; 1370 case codegenoptions::LocTrackingOnly: // implied value 1371 DebugInfoVal = None; 1372 break; 1373 } 1374 if (DebugInfoVal) 1375 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1376 1377 for (const auto &Prefix : Opts.DebugPrefixMap) 1378 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1379 Prefix.first + "=" + Prefix.second, SA); 1380 1381 for (const auto &Prefix : Opts.CoveragePrefixMap) 1382 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1383 Prefix.first + "=" + Prefix.second, SA); 1384 1385 if (Opts.NewStructPathTBAA) 1386 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1387 1388 if (Opts.OptimizeSize == 1) 1389 GenerateArg(Args, OPT_O, "s", SA); 1390 else if (Opts.OptimizeSize == 2) 1391 GenerateArg(Args, OPT_O, "z", SA); 1392 1393 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1394 // -ffreestanding. We'll consider that when generating them. 1395 1396 // NoBuiltinFuncs are generated by LangOptions. 1397 1398 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1399 GenerateArg(Args, OPT_funroll_loops, SA); 1400 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1401 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1402 1403 if (!Opts.BinutilsVersion.empty()) 1404 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1405 1406 if (Opts.DebugNameTable == 1407 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1408 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1409 else if (Opts.DebugNameTable == 1410 static_cast<unsigned>( 1411 llvm::DICompileUnit::DebugNameTableKind::Default)) 1412 GenerateArg(Args, OPT_gpubnames, SA); 1413 1414 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1415 // it or PGOUseInstrumentor. 1416 1417 if (Opts.TimePasses) { 1418 if (Opts.TimePassesPerRun) 1419 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1420 else 1421 GenerateArg(Args, OPT_ftime_report, SA); 1422 } 1423 1424 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1425 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1426 1427 if (Opts.PrepareForThinLTO) 1428 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1429 1430 if (!Opts.ThinLTOIndexFile.empty()) 1431 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1432 1433 if (Opts.SaveTempsFilePrefix == OutputFile) 1434 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1435 1436 StringRef MemProfileBasename("memprof.profraw"); 1437 if (!Opts.MemoryProfileOutput.empty()) { 1438 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1439 GenerateArg(Args, OPT_fmemory_profile, SA); 1440 } else { 1441 size_t ArgLength = 1442 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1443 GenerateArg(Args, OPT_fmemory_profile_EQ, 1444 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1445 } 1446 } 1447 1448 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1449 GenerateArg(Args, OPT_coverage_version_EQ, 1450 StringRef(Opts.CoverageVersion, 4), SA); 1451 1452 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1453 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1454 // won't be generated.) 1455 1456 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1457 std::string InstrBundle = 1458 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1459 if (!InstrBundle.empty()) 1460 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1461 } 1462 1463 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1464 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1465 else if (Opts.CFProtectionReturn) 1466 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1467 else if (Opts.CFProtectionBranch) 1468 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1469 1470 for (const auto &F : Opts.LinkBitcodeFiles) { 1471 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1472 F.PropagateAttrs && F.Internalize; 1473 GenerateArg(Args, 1474 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1475 F.Filename, SA); 1476 } 1477 1478 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1479 // That would make it easy to generate the option only **once** if it was 1480 // explicitly set to non-default value. 1481 if (Opts.ExplicitEmulatedTLS) { 1482 GenerateArg( 1483 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1484 } 1485 1486 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1487 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1488 1489 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1490 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1491 SA); 1492 1493 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1494 OptSpecifier Opt = 1495 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1496 GenerateArg(Args, Opt, SA); 1497 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1498 OptSpecifier Opt = 1499 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1500 GenerateArg(Args, Opt, SA); 1501 } 1502 1503 if (Opts.EnableAIXExtendedAltivecABI) 1504 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1505 1506 if (!Opts.OptRecordPasses.empty()) 1507 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1508 1509 if (!Opts.OptRecordFormat.empty()) 1510 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1511 1512 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1513 Opts.OptimizationRemark); 1514 1515 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1516 Opts.OptimizationRemarkMissed); 1517 1518 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1519 Opts.OptimizationRemarkAnalysis); 1520 1521 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1522 Opts.DiagnosticsHotnessThreshold 1523 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1524 : "auto", 1525 SA); 1526 1527 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1528 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1529 1530 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1531 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1532 1533 if (!Opts.EmitVersionIdentMetadata) 1534 GenerateArg(Args, OPT_Qn, SA); 1535 1536 switch (Opts.FiniteLoops) { 1537 case CodeGenOptions::FiniteLoopsKind::Language: 1538 break; 1539 case CodeGenOptions::FiniteLoopsKind::Always: 1540 GenerateArg(Args, OPT_ffinite_loops, SA); 1541 break; 1542 case CodeGenOptions::FiniteLoopsKind::Never: 1543 GenerateArg(Args, OPT_fno_finite_loops, SA); 1544 break; 1545 } 1546 } 1547 1548 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1549 InputKind IK, 1550 DiagnosticsEngine &Diags, 1551 const llvm::Triple &T, 1552 const std::string &OutputFile, 1553 const LangOptions &LangOptsRef) { 1554 unsigned NumErrorsBefore = Diags.getNumErrors(); 1555 1556 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1557 // TODO: This could be done in Driver 1558 unsigned MaxOptLevel = 3; 1559 if (OptimizationLevel > MaxOptLevel) { 1560 // If the optimization level is not supported, fall back on the default 1561 // optimization 1562 Diags.Report(diag::warn_drv_optimization_value) 1563 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1564 OptimizationLevel = MaxOptLevel; 1565 } 1566 Opts.OptimizationLevel = OptimizationLevel; 1567 1568 // The key paths of codegen options defined in Options.td start with 1569 // "CodeGenOpts.". Let's provide the expected variable name and type. 1570 CodeGenOptions &CodeGenOpts = Opts; 1571 // Some codegen options depend on language options. Let's provide the expected 1572 // variable name and type. 1573 const LangOptions *LangOpts = &LangOptsRef; 1574 1575 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1576 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1577 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1578 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1579 MERGER, EXTRACTOR, TABLE_INDEX) \ 1580 PARSE_OPTION_WITH_MARSHALLING( \ 1581 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1582 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1583 #include "clang/Driver/Options.inc" 1584 #undef CODEGEN_OPTION_WITH_MARSHALLING 1585 1586 // At O0 we want to fully disable inlining outside of cases marked with 1587 // 'alwaysinline' that are required for correctness. 1588 Opts.setInlining((Opts.OptimizationLevel == 0) 1589 ? CodeGenOptions::OnlyAlwaysInlining 1590 : CodeGenOptions::NormalInlining); 1591 // Explicit inlining flags can disable some or all inlining even at 1592 // optimization levels above zero. 1593 if (Arg *InlineArg = Args.getLastArg( 1594 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1595 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1596 if (Opts.OptimizationLevel > 0) { 1597 const Option &InlineOpt = InlineArg->getOption(); 1598 if (InlineOpt.matches(options::OPT_finline_functions)) 1599 Opts.setInlining(CodeGenOptions::NormalInlining); 1600 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1601 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1602 else 1603 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1604 } 1605 } 1606 1607 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1608 // -fdirect-access-external-data. 1609 Opts.DirectAccessExternalData = 1610 Args.hasArg(OPT_fdirect_access_external_data) || 1611 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1612 LangOpts->PICLevel == 0); 1613 1614 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1615 unsigned Val = 1616 llvm::StringSwitch<unsigned>(A->getValue()) 1617 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1618 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1619 .Case("constructor", codegenoptions::DebugInfoConstructor) 1620 .Case("limited", codegenoptions::LimitedDebugInfo) 1621 .Case("standalone", codegenoptions::FullDebugInfo) 1622 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1623 .Default(~0U); 1624 if (Val == ~0U) 1625 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1626 << A->getValue(); 1627 else 1628 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1629 } 1630 1631 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1632 // constructor homing, and vice versa for -fno-use-ctor-homing. 1633 if (const Arg *A = 1634 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1635 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1636 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1637 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1638 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1639 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1640 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1641 } 1642 1643 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1644 auto Split = StringRef(Arg).split('='); 1645 Opts.DebugPrefixMap.insert( 1646 {std::string(Split.first), std::string(Split.second)}); 1647 } 1648 1649 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1650 auto Split = StringRef(Arg).split('='); 1651 Opts.CoveragePrefixMap.insert( 1652 {std::string(Split.first), std::string(Split.second)}); 1653 } 1654 1655 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1656 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1657 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1658 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1659 1660 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1661 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1662 Opts.EmitCallSiteInfo = true; 1663 1664 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1665 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1666 << Opts.DIBugsReportFilePath; 1667 Opts.DIBugsReportFilePath = ""; 1668 } 1669 1670 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1671 Args.hasArg(OPT_new_struct_path_tbaa); 1672 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1673 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1674 if (Opts.SimplifyLibCalls) 1675 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1676 Opts.UnrollLoops = 1677 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1678 (Opts.OptimizationLevel > 1)); 1679 Opts.BinutilsVersion = 1680 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1681 1682 Opts.DebugNameTable = static_cast<unsigned>( 1683 Args.hasArg(OPT_ggnu_pubnames) 1684 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1685 : Args.hasArg(OPT_gpubnames) 1686 ? llvm::DICompileUnit::DebugNameTableKind::Default 1687 : llvm::DICompileUnit::DebugNameTableKind::None); 1688 1689 if (!Opts.ProfileInstrumentUsePath.empty()) 1690 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1691 1692 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1693 Opts.TimePasses = true; 1694 1695 // -ftime-report= is only for new pass manager. 1696 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1697 if (Opts.LegacyPassManager) 1698 Diags.Report(diag::err_drv_argument_only_allowed_with) 1699 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1700 1701 StringRef Val = A->getValue(); 1702 if (Val == "per-pass") 1703 Opts.TimePassesPerRun = false; 1704 else if (Val == "per-pass-run") 1705 Opts.TimePassesPerRun = true; 1706 else 1707 Diags.Report(diag::err_drv_invalid_value) 1708 << A->getAsString(Args) << A->getValue(); 1709 } 1710 } 1711 1712 Opts.PrepareForLTO = false; 1713 Opts.PrepareForThinLTO = false; 1714 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1715 Opts.PrepareForLTO = true; 1716 StringRef S = A->getValue(); 1717 if (S == "thin") 1718 Opts.PrepareForThinLTO = true; 1719 else if (S != "full") 1720 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1721 } 1722 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1723 if (IK.getLanguage() != Language::LLVM_IR) 1724 Diags.Report(diag::err_drv_argument_only_allowed_with) 1725 << A->getAsString(Args) << "-x ir"; 1726 Opts.ThinLTOIndexFile = 1727 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1728 } 1729 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1730 Opts.SaveTempsFilePrefix = 1731 llvm::StringSwitch<std::string>(A->getValue()) 1732 .Case("obj", OutputFile) 1733 .Default(llvm::sys::path::filename(OutputFile).str()); 1734 1735 // The memory profile runtime appends the pid to make this name more unique. 1736 const char *MemProfileBasename = "memprof.profraw"; 1737 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1738 SmallString<128> Path( 1739 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1740 llvm::sys::path::append(Path, MemProfileBasename); 1741 Opts.MemoryProfileOutput = std::string(Path); 1742 } else if (Args.hasArg(OPT_fmemory_profile)) 1743 Opts.MemoryProfileOutput = MemProfileBasename; 1744 1745 memcpy(Opts.CoverageVersion, "408*", 4); 1746 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1747 if (Args.hasArg(OPT_coverage_version_EQ)) { 1748 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1749 if (CoverageVersion.size() != 4) { 1750 Diags.Report(diag::err_drv_invalid_value) 1751 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1752 << CoverageVersion; 1753 } else { 1754 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1755 } 1756 } 1757 } 1758 // FIXME: For backend options that are not yet recorded as function 1759 // attributes in the IR, keep track of them so we can embed them in a 1760 // separate data section and use them when building the bitcode. 1761 for (const auto &A : Args) { 1762 // Do not encode output and input. 1763 if (A->getOption().getID() == options::OPT_o || 1764 A->getOption().getID() == options::OPT_INPUT || 1765 A->getOption().getID() == options::OPT_x || 1766 A->getOption().getID() == options::OPT_fembed_bitcode || 1767 A->getOption().matches(options::OPT_W_Group)) 1768 continue; 1769 ArgStringList ASL; 1770 A->render(Args, ASL); 1771 for (const auto &arg : ASL) { 1772 StringRef ArgStr(arg); 1773 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1774 // using \00 to separate each commandline options. 1775 Opts.CmdArgs.push_back('\0'); 1776 } 1777 } 1778 1779 auto XRayInstrBundles = 1780 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1781 if (XRayInstrBundles.empty()) 1782 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1783 else 1784 for (const auto &A : XRayInstrBundles) 1785 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1786 Diags, Opts.XRayInstrumentationBundle); 1787 1788 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1789 StringRef Name = A->getValue(); 1790 if (Name == "full") { 1791 Opts.CFProtectionReturn = 1; 1792 Opts.CFProtectionBranch = 1; 1793 } else if (Name == "return") 1794 Opts.CFProtectionReturn = 1; 1795 else if (Name == "branch") 1796 Opts.CFProtectionBranch = 1; 1797 else if (Name != "none") 1798 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1799 } 1800 1801 for (auto *A : 1802 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1803 CodeGenOptions::BitcodeFileToLink F; 1804 F.Filename = A->getValue(); 1805 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1806 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1807 // When linking CUDA bitcode, propagate function attributes so that 1808 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1809 F.PropagateAttrs = true; 1810 F.Internalize = true; 1811 } 1812 Opts.LinkBitcodeFiles.push_back(F); 1813 } 1814 1815 if (Args.getLastArg(OPT_femulated_tls) || 1816 Args.getLastArg(OPT_fno_emulated_tls)) { 1817 Opts.ExplicitEmulatedTLS = true; 1818 } 1819 1820 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1821 if (T.isOSAIX()) { 1822 StringRef Name = A->getValue(); 1823 if (Name != "global-dynamic") 1824 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1825 } 1826 } 1827 1828 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1829 StringRef Val = A->getValue(); 1830 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1831 if (!Opts.FPDenormalMode.isValid()) 1832 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1833 } 1834 1835 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1836 StringRef Val = A->getValue(); 1837 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1838 if (!Opts.FP32DenormalMode.isValid()) 1839 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1840 } 1841 1842 // X86_32 has -fppc-struct-return and -freg-struct-return. 1843 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1844 if (Arg *A = 1845 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1846 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1847 // TODO: We might want to consider enabling these options on AIX in the 1848 // future. 1849 if (T.isOSAIX()) 1850 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1851 << A->getSpelling() << T.str(); 1852 1853 const Option &O = A->getOption(); 1854 if (O.matches(OPT_fpcc_struct_return) || 1855 O.matches(OPT_maix_struct_return)) { 1856 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1857 } else { 1858 assert(O.matches(OPT_freg_struct_return) || 1859 O.matches(OPT_msvr4_struct_return)); 1860 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1861 } 1862 } 1863 1864 if (Arg *A = 1865 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1866 if (!T.isOSAIX()) 1867 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1868 << A->getSpelling() << T.str(); 1869 1870 const Option &O = A->getOption(); 1871 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1872 } 1873 1874 bool NeedLocTracking = false; 1875 1876 if (!Opts.OptRecordFile.empty()) 1877 NeedLocTracking = true; 1878 1879 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1880 Opts.OptRecordPasses = A->getValue(); 1881 NeedLocTracking = true; 1882 } 1883 1884 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1885 Opts.OptRecordFormat = A->getValue(); 1886 NeedLocTracking = true; 1887 } 1888 1889 Opts.OptimizationRemark = 1890 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1891 1892 Opts.OptimizationRemarkMissed = 1893 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1894 1895 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1896 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1897 1898 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1899 Opts.OptimizationRemarkMissed.hasValidPattern() || 1900 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1901 1902 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1903 bool UsingProfile = UsingSampleProfile || 1904 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1905 1906 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1907 // An IR file will contain PGO as metadata 1908 IK.getLanguage() != Language::LLVM_IR) 1909 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1910 << "-fdiagnostics-show-hotness"; 1911 1912 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1913 if (auto *arg = 1914 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1915 auto ResultOrErr = 1916 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1917 1918 if (!ResultOrErr) { 1919 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1920 << "-fdiagnostics-hotness-threshold="; 1921 } else { 1922 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1923 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1924 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1925 !UsingProfile) 1926 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1927 << "-fdiagnostics-hotness-threshold="; 1928 } 1929 } 1930 1931 // If the user requested to use a sample profile for PGO, then the 1932 // backend will need to track source location information so the profile 1933 // can be incorporated into the IR. 1934 if (UsingSampleProfile) 1935 NeedLocTracking = true; 1936 1937 if (!Opts.StackUsageOutput.empty()) 1938 NeedLocTracking = true; 1939 1940 // If the user requested a flag that requires source locations available in 1941 // the backend, make sure that the backend tracks source location information. 1942 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1943 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1944 1945 // Parse -fsanitize-recover= arguments. 1946 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1947 parseSanitizerKinds("-fsanitize-recover=", 1948 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1949 Opts.SanitizeRecover); 1950 parseSanitizerKinds("-fsanitize-trap=", 1951 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1952 Opts.SanitizeTrap); 1953 1954 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1955 1956 if (Args.hasArg(options::OPT_ffinite_loops)) 1957 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1958 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1959 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1960 1961 Opts.EmitIEEENaNCompliantInsts = 1962 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1963 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1964 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1965 1966 return Diags.getNumErrors() == NumErrorsBefore; 1967 } 1968 1969 static void 1970 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1971 SmallVectorImpl<const char *> &Args, 1972 CompilerInvocation::StringAllocator SA) { 1973 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1974 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1975 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1976 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1977 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1978 MERGER, EXTRACTOR, TABLE_INDEX) \ 1979 GENERATE_OPTION_WITH_MARSHALLING( \ 1980 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1981 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1982 #include "clang/Driver/Options.inc" 1983 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1984 1985 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1986 GenerateArg(Args, OPT_show_includes, SA); 1987 1988 for (const auto &Dep : Opts.ExtraDeps) { 1989 switch (Dep.second) { 1990 case EDK_SanitizeIgnorelist: 1991 // Sanitizer ignorelist arguments are generated from LanguageOptions. 1992 continue; 1993 case EDK_ModuleFile: 1994 // Module file arguments are generated from FrontendOptions and 1995 // HeaderSearchOptions. 1996 continue; 1997 case EDK_ProfileList: 1998 // Profile list arguments are generated from LanguageOptions via the 1999 // marshalling infrastructure. 2000 continue; 2001 case EDK_DepFileEntry: 2002 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2003 break; 2004 } 2005 } 2006 } 2007 2008 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2009 ArgList &Args, DiagnosticsEngine &Diags, 2010 frontend::ActionKind Action, 2011 bool ShowLineMarkers) { 2012 unsigned NumErrorsBefore = Diags.getNumErrors(); 2013 2014 DependencyOutputOptions &DependencyOutputOpts = Opts; 2015 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2016 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2017 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2018 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2019 MERGER, EXTRACTOR, TABLE_INDEX) \ 2020 PARSE_OPTION_WITH_MARSHALLING( \ 2021 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2022 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2023 #include "clang/Driver/Options.inc" 2024 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2025 2026 if (Args.hasArg(OPT_show_includes)) { 2027 // Writing both /showIncludes and preprocessor output to stdout 2028 // would produce interleaved output, so use stderr for /showIncludes. 2029 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2030 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2031 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2032 else 2033 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2034 } else { 2035 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2036 } 2037 2038 // Add sanitizer ignorelists as extra dependencies. 2039 // They won't be discovered by the regular preprocessor, so 2040 // we let make / ninja to know about this implicit dependency. 2041 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2042 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2043 StringRef Val = A->getValue(); 2044 if (Val.find('=') == StringRef::npos) 2045 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2046 } 2047 if (Opts.IncludeSystemHeaders) { 2048 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2049 StringRef Val = A->getValue(); 2050 if (Val.find('=') == StringRef::npos) 2051 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2052 } 2053 } 2054 } 2055 2056 // -fprofile-list= dependencies. 2057 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2058 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2059 2060 // Propagate the extra dependencies. 2061 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2062 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2063 2064 // Only the -fmodule-file=<file> form. 2065 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2066 StringRef Val = A->getValue(); 2067 if (Val.find('=') == StringRef::npos) 2068 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2069 } 2070 2071 return Diags.getNumErrors() == NumErrorsBefore; 2072 } 2073 2074 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2075 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2076 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2077 // Support both clang's -f[no-]color-diagnostics and gcc's 2078 // -f[no-]diagnostics-colors[=never|always|auto]. 2079 enum { 2080 Colors_On, 2081 Colors_Off, 2082 Colors_Auto 2083 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2084 for (auto *A : Args) { 2085 const Option &O = A->getOption(); 2086 if (O.matches(options::OPT_fcolor_diagnostics) || 2087 O.matches(options::OPT_fdiagnostics_color)) { 2088 ShowColors = Colors_On; 2089 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2090 O.matches(options::OPT_fno_diagnostics_color)) { 2091 ShowColors = Colors_Off; 2092 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2093 StringRef Value(A->getValue()); 2094 if (Value == "always") 2095 ShowColors = Colors_On; 2096 else if (Value == "never") 2097 ShowColors = Colors_Off; 2098 else if (Value == "auto") 2099 ShowColors = Colors_Auto; 2100 } 2101 } 2102 return ShowColors == Colors_On || 2103 (ShowColors == Colors_Auto && 2104 llvm::sys::Process::StandardErrHasColors()); 2105 } 2106 2107 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2108 DiagnosticsEngine &Diags) { 2109 bool Success = true; 2110 for (const auto &Prefix : VerifyPrefixes) { 2111 // Every prefix must start with a letter and contain only alphanumeric 2112 // characters, hyphens, and underscores. 2113 auto BadChar = llvm::find_if(Prefix, [](char C) { 2114 return !isAlphanumeric(C) && C != '-' && C != '_'; 2115 }); 2116 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2117 Success = false; 2118 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2119 Diags.Report(diag::note_drv_verify_prefix_spelling); 2120 } 2121 } 2122 return Success; 2123 } 2124 2125 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2126 SmallVectorImpl<const char *> &Args, 2127 CompilerInvocation::StringAllocator SA) { 2128 const FileSystemOptions &FileSystemOpts = Opts; 2129 2130 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2131 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2132 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2133 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2134 MERGER, EXTRACTOR, TABLE_INDEX) \ 2135 GENERATE_OPTION_WITH_MARSHALLING( \ 2136 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2137 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2138 #include "clang/Driver/Options.inc" 2139 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2140 } 2141 2142 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2143 DiagnosticsEngine &Diags) { 2144 unsigned NumErrorsBefore = Diags.getNumErrors(); 2145 2146 FileSystemOptions &FileSystemOpts = Opts; 2147 2148 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2149 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2150 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2151 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2152 MERGER, EXTRACTOR, TABLE_INDEX) \ 2153 PARSE_OPTION_WITH_MARSHALLING( \ 2154 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2155 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2156 #include "clang/Driver/Options.inc" 2157 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2158 2159 return Diags.getNumErrors() == NumErrorsBefore; 2160 } 2161 2162 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2163 SmallVectorImpl<const char *> &Args, 2164 CompilerInvocation::StringAllocator SA) { 2165 const MigratorOptions &MigratorOpts = Opts; 2166 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2167 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2168 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2169 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2170 MERGER, EXTRACTOR, TABLE_INDEX) \ 2171 GENERATE_OPTION_WITH_MARSHALLING( \ 2172 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2173 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2174 #include "clang/Driver/Options.inc" 2175 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2176 } 2177 2178 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2179 DiagnosticsEngine &Diags) { 2180 unsigned NumErrorsBefore = Diags.getNumErrors(); 2181 2182 MigratorOptions &MigratorOpts = Opts; 2183 2184 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2185 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2186 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2187 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2188 MERGER, EXTRACTOR, TABLE_INDEX) \ 2189 PARSE_OPTION_WITH_MARSHALLING( \ 2190 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2191 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2192 #include "clang/Driver/Options.inc" 2193 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2194 2195 return Diags.getNumErrors() == NumErrorsBefore; 2196 } 2197 2198 void CompilerInvocation::GenerateDiagnosticArgs( 2199 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2200 StringAllocator SA, bool DefaultDiagColor) { 2201 const DiagnosticOptions *DiagnosticOpts = &Opts; 2202 #define DIAG_OPTION_WITH_MARSHALLING( \ 2203 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2204 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2205 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2206 MERGER, EXTRACTOR, TABLE_INDEX) \ 2207 GENERATE_OPTION_WITH_MARSHALLING( \ 2208 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2209 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2210 #include "clang/Driver/Options.inc" 2211 #undef DIAG_OPTION_WITH_MARSHALLING 2212 2213 if (!Opts.DiagnosticSerializationFile.empty()) 2214 GenerateArg(Args, OPT_diagnostic_serialized_file, 2215 Opts.DiagnosticSerializationFile, SA); 2216 2217 if (Opts.ShowColors) 2218 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2219 2220 if (Opts.VerifyDiagnostics && 2221 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2222 GenerateArg(Args, OPT_verify, SA); 2223 2224 for (const auto &Prefix : Opts.VerifyPrefixes) 2225 if (Prefix != "expected") 2226 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2227 2228 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2229 if (VIU == DiagnosticLevelMask::None) { 2230 // This is the default, don't generate anything. 2231 } else if (VIU == DiagnosticLevelMask::All) { 2232 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2233 } else { 2234 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2235 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2236 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2237 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2238 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2239 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2240 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2241 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2242 } 2243 2244 for (const auto &Warning : Opts.Warnings) { 2245 // This option is automatically generated from UndefPrefixes. 2246 if (Warning == "undef-prefix") 2247 continue; 2248 Args.push_back(SA(StringRef("-W") + Warning)); 2249 } 2250 2251 for (const auto &Remark : Opts.Remarks) { 2252 // These arguments are generated from OptimizationRemark fields of 2253 // CodeGenOptions. 2254 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2255 "pass-analysis", "no-pass-analysis", 2256 "pass-missed", "no-pass-missed"}; 2257 if (llvm::is_contained(IgnoredRemarks, Remark)) 2258 continue; 2259 2260 Args.push_back(SA(StringRef("-R") + Remark)); 2261 } 2262 } 2263 2264 std::unique_ptr<DiagnosticOptions> 2265 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2266 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2267 unsigned MissingArgIndex, MissingArgCount; 2268 InputArgList Args = getDriverOptTable().ParseArgs( 2269 Argv.slice(1), MissingArgIndex, MissingArgCount); 2270 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2271 // Any errors that would be diagnosed here will also be diagnosed later, 2272 // when the DiagnosticsEngine actually exists. 2273 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2274 return DiagOpts; 2275 } 2276 2277 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2278 DiagnosticsEngine *Diags, 2279 bool DefaultDiagColor) { 2280 Optional<DiagnosticsEngine> IgnoringDiags; 2281 if (!Diags) { 2282 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2283 new IgnoringDiagConsumer()); 2284 Diags = &*IgnoringDiags; 2285 } 2286 2287 unsigned NumErrorsBefore = Diags->getNumErrors(); 2288 2289 // The key paths of diagnostic options defined in Options.td start with 2290 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2291 DiagnosticOptions *DiagnosticOpts = &Opts; 2292 2293 #define DIAG_OPTION_WITH_MARSHALLING( \ 2294 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2295 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2296 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2297 MERGER, EXTRACTOR, TABLE_INDEX) \ 2298 PARSE_OPTION_WITH_MARSHALLING( \ 2299 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2300 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2301 #include "clang/Driver/Options.inc" 2302 #undef DIAG_OPTION_WITH_MARSHALLING 2303 2304 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2305 2306 if (Arg *A = 2307 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2308 Opts.DiagnosticSerializationFile = A->getValue(); 2309 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2310 2311 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2312 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2313 if (Args.hasArg(OPT_verify)) 2314 Opts.VerifyPrefixes.push_back("expected"); 2315 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2316 // then sort it to prepare for fast lookup using std::binary_search. 2317 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2318 Opts.VerifyDiagnostics = false; 2319 else 2320 llvm::sort(Opts.VerifyPrefixes); 2321 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2322 parseDiagnosticLevelMask( 2323 "-verify-ignore-unexpected=", 2324 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2325 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2326 DiagMask = DiagnosticLevelMask::All; 2327 Opts.setVerifyIgnoreUnexpected(DiagMask); 2328 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2329 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2330 Diags->Report(diag::warn_ignoring_ftabstop_value) 2331 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2332 } 2333 2334 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2335 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2336 2337 return Diags->getNumErrors() == NumErrorsBefore; 2338 } 2339 2340 /// Parse the argument to the -ftest-module-file-extension 2341 /// command-line argument. 2342 /// 2343 /// \returns true on error, false on success. 2344 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2345 std::string &BlockName, 2346 unsigned &MajorVersion, 2347 unsigned &MinorVersion, 2348 bool &Hashed, 2349 std::string &UserInfo) { 2350 SmallVector<StringRef, 5> Args; 2351 Arg.split(Args, ':', 5); 2352 if (Args.size() < 5) 2353 return true; 2354 2355 BlockName = std::string(Args[0]); 2356 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2357 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2358 if (Args[3].getAsInteger(2, Hashed)) return true; 2359 if (Args.size() > 4) 2360 UserInfo = std::string(Args[4]); 2361 return false; 2362 } 2363 2364 /// Return a table that associates command line option specifiers with the 2365 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2366 /// intentionally missing, as this case is handled separately from other 2367 /// frontend options. 2368 static const auto &getFrontendActionTable() { 2369 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2370 {frontend::ASTDeclList, OPT_ast_list}, 2371 2372 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2373 {frontend::ASTDump, OPT_ast_dump_all}, 2374 {frontend::ASTDump, OPT_ast_dump_EQ}, 2375 {frontend::ASTDump, OPT_ast_dump}, 2376 {frontend::ASTDump, OPT_ast_dump_lookups}, 2377 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2378 2379 {frontend::ASTPrint, OPT_ast_print}, 2380 {frontend::ASTView, OPT_ast_view}, 2381 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2382 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2383 {frontend::DumpTokens, OPT_dump_tokens}, 2384 {frontend::EmitAssembly, OPT_S}, 2385 {frontend::EmitBC, OPT_emit_llvm_bc}, 2386 {frontend::EmitHTML, OPT_emit_html}, 2387 {frontend::EmitLLVM, OPT_emit_llvm}, 2388 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2389 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2390 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2391 {frontend::EmitObj, OPT_emit_obj}, 2392 2393 {frontend::FixIt, OPT_fixit_EQ}, 2394 {frontend::FixIt, OPT_fixit}, 2395 2396 {frontend::GenerateModule, OPT_emit_module}, 2397 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2398 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2399 {frontend::GeneratePCH, OPT_emit_pch}, 2400 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2401 {frontend::InitOnly, OPT_init_only}, 2402 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2403 {frontend::ModuleFileInfo, OPT_module_file_info}, 2404 {frontend::VerifyPCH, OPT_verify_pch}, 2405 {frontend::PrintPreamble, OPT_print_preamble}, 2406 {frontend::PrintPreprocessedInput, OPT_E}, 2407 {frontend::TemplightDump, OPT_templight_dump}, 2408 {frontend::RewriteMacros, OPT_rewrite_macros}, 2409 {frontend::RewriteObjC, OPT_rewrite_objc}, 2410 {frontend::RewriteTest, OPT_rewrite_test}, 2411 {frontend::RunAnalysis, OPT_analyze}, 2412 {frontend::MigrateSource, OPT_migrate}, 2413 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2414 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2415 OPT_print_dependency_directives_minimized_source}, 2416 }; 2417 2418 return Table; 2419 } 2420 2421 /// Maps command line option to frontend action. 2422 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2423 for (const auto &ActionOpt : getFrontendActionTable()) 2424 if (ActionOpt.second == Opt.getID()) 2425 return ActionOpt.first; 2426 2427 return None; 2428 } 2429 2430 /// Maps frontend action to command line option. 2431 static Optional<OptSpecifier> 2432 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2433 for (const auto &ActionOpt : getFrontendActionTable()) 2434 if (ActionOpt.first == ProgramAction) 2435 return OptSpecifier(ActionOpt.second); 2436 2437 return None; 2438 } 2439 2440 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2441 SmallVectorImpl<const char *> &Args, 2442 CompilerInvocation::StringAllocator SA, 2443 bool IsHeader) { 2444 const FrontendOptions &FrontendOpts = Opts; 2445 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2446 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2447 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2448 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2449 MERGER, EXTRACTOR, TABLE_INDEX) \ 2450 GENERATE_OPTION_WITH_MARSHALLING( \ 2451 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2452 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2453 #include "clang/Driver/Options.inc" 2454 #undef FRONTEND_OPTION_WITH_MARSHALLING 2455 2456 Optional<OptSpecifier> ProgramActionOpt = 2457 getProgramActionOpt(Opts.ProgramAction); 2458 2459 // Generating a simple flag covers most frontend actions. 2460 std::function<void()> GenerateProgramAction = [&]() { 2461 GenerateArg(Args, *ProgramActionOpt, SA); 2462 }; 2463 2464 if (!ProgramActionOpt) { 2465 // PluginAction is the only program action handled separately. 2466 assert(Opts.ProgramAction == frontend::PluginAction && 2467 "Frontend action without option."); 2468 GenerateProgramAction = [&]() { 2469 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2470 }; 2471 } 2472 2473 // FIXME: Simplify the complex 'AST dump' command line. 2474 if (Opts.ProgramAction == frontend::ASTDump) { 2475 GenerateProgramAction = [&]() { 2476 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2477 // marshalling infrastructure. 2478 2479 if (Opts.ASTDumpFormat != ADOF_Default) { 2480 StringRef Format; 2481 switch (Opts.ASTDumpFormat) { 2482 case ADOF_Default: 2483 llvm_unreachable("Default AST dump format."); 2484 case ADOF_JSON: 2485 Format = "json"; 2486 break; 2487 } 2488 2489 if (Opts.ASTDumpAll) 2490 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2491 if (Opts.ASTDumpDecls) 2492 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2493 } else { 2494 if (Opts.ASTDumpAll) 2495 GenerateArg(Args, OPT_ast_dump_all, SA); 2496 if (Opts.ASTDumpDecls) 2497 GenerateArg(Args, OPT_ast_dump, SA); 2498 } 2499 }; 2500 } 2501 2502 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2503 GenerateProgramAction = [&]() { 2504 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2505 }; 2506 } 2507 2508 GenerateProgramAction(); 2509 2510 for (const auto &PluginArgs : Opts.PluginArgs) { 2511 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2512 const char *Spelling = 2513 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2514 for (const auto &PluginArg : PluginArgs.second) 2515 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2516 } 2517 2518 for (const auto &Ext : Opts.ModuleFileExtensions) 2519 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2520 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2521 2522 if (!Opts.CodeCompletionAt.FileName.empty()) 2523 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2524 SA); 2525 2526 for (const auto &Plugin : Opts.Plugins) 2527 GenerateArg(Args, OPT_load, Plugin, SA); 2528 2529 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2530 2531 for (const auto &ModuleFile : Opts.ModuleFiles) 2532 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2533 2534 if (Opts.AuxTargetCPU.hasValue()) 2535 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2536 2537 if (Opts.AuxTargetFeatures.hasValue()) 2538 for (const auto &Feature : *Opts.AuxTargetFeatures) 2539 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2540 2541 { 2542 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2543 StringRef ModuleMap = 2544 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2545 StringRef Header = IsHeader ? "-header" : ""; 2546 2547 StringRef Lang; 2548 switch (Opts.DashX.getLanguage()) { 2549 case Language::C: 2550 Lang = "c"; 2551 break; 2552 case Language::OpenCL: 2553 Lang = "cl"; 2554 break; 2555 case Language::OpenCLCXX: 2556 Lang = "clcpp"; 2557 break; 2558 case Language::CUDA: 2559 Lang = "cuda"; 2560 break; 2561 case Language::HIP: 2562 Lang = "hip"; 2563 break; 2564 case Language::CXX: 2565 Lang = "c++"; 2566 break; 2567 case Language::ObjC: 2568 Lang = "objective-c"; 2569 break; 2570 case Language::ObjCXX: 2571 Lang = "objective-c++"; 2572 break; 2573 case Language::RenderScript: 2574 Lang = "renderscript"; 2575 break; 2576 case Language::Asm: 2577 Lang = "assembler-with-cpp"; 2578 break; 2579 case Language::Unknown: 2580 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2581 "Generating -x argument for unknown language (not precompiled)."); 2582 Lang = "ast"; 2583 break; 2584 case Language::LLVM_IR: 2585 Lang = "ir"; 2586 break; 2587 } 2588 2589 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2590 } 2591 2592 // OPT_INPUT has a unique class, generate it directly. 2593 for (const auto &Input : Opts.Inputs) 2594 Args.push_back(SA(Input.getFile())); 2595 } 2596 2597 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2598 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2599 unsigned NumErrorsBefore = Diags.getNumErrors(); 2600 2601 FrontendOptions &FrontendOpts = Opts; 2602 2603 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2604 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2605 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2606 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2607 MERGER, EXTRACTOR, TABLE_INDEX) \ 2608 PARSE_OPTION_WITH_MARSHALLING( \ 2609 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2610 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2611 #include "clang/Driver/Options.inc" 2612 #undef FRONTEND_OPTION_WITH_MARSHALLING 2613 2614 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2615 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2616 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2617 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2618 assert(ProgramAction && "Option specifier not in Action_Group."); 2619 2620 if (ProgramAction == frontend::ASTDump && 2621 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2622 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2623 .CaseLower("default", ADOF_Default) 2624 .CaseLower("json", ADOF_JSON) 2625 .Default(std::numeric_limits<unsigned>::max()); 2626 2627 if (Val != std::numeric_limits<unsigned>::max()) 2628 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2629 else { 2630 Diags.Report(diag::err_drv_invalid_value) 2631 << A->getAsString(Args) << A->getValue(); 2632 Opts.ASTDumpFormat = ADOF_Default; 2633 } 2634 } 2635 2636 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2637 Opts.FixItSuffix = A->getValue(); 2638 2639 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2640 StringRef ArgStr = 2641 Args.hasArg(OPT_interface_stub_version_EQ) 2642 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2643 : "ifs-v1"; 2644 if (ArgStr == "experimental-yaml-elf-v1" || 2645 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2646 ArgStr == "experimental-tapi-elf-v1") { 2647 std::string ErrorMessage = 2648 "Invalid interface stub format: " + ArgStr.str() + 2649 " is deprecated."; 2650 Diags.Report(diag::err_drv_invalid_value) 2651 << "Must specify a valid interface stub format type, ie: " 2652 "-interface-stub-version=ifs-v1" 2653 << ErrorMessage; 2654 ProgramAction = frontend::ParseSyntaxOnly; 2655 } else if (!ArgStr.startswith("ifs-")) { 2656 std::string ErrorMessage = 2657 "Invalid interface stub format: " + ArgStr.str() + "."; 2658 Diags.Report(diag::err_drv_invalid_value) 2659 << "Must specify a valid interface stub format type, ie: " 2660 "-interface-stub-version=ifs-v1" 2661 << ErrorMessage; 2662 ProgramAction = frontend::ParseSyntaxOnly; 2663 } 2664 } 2665 2666 Opts.ProgramAction = *ProgramAction; 2667 } 2668 2669 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2670 Opts.Plugins.emplace_back(A->getValue(0)); 2671 Opts.ProgramAction = frontend::PluginAction; 2672 Opts.ActionName = A->getValue(); 2673 } 2674 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2675 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2676 2677 for (const std::string &Arg : 2678 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2679 std::string BlockName; 2680 unsigned MajorVersion; 2681 unsigned MinorVersion; 2682 bool Hashed; 2683 std::string UserInfo; 2684 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2685 MinorVersion, Hashed, UserInfo)) { 2686 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2687 2688 continue; 2689 } 2690 2691 // Add the testing module file extension. 2692 Opts.ModuleFileExtensions.push_back( 2693 std::make_shared<TestModuleFileExtension>( 2694 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2695 } 2696 2697 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2698 Opts.CodeCompletionAt = 2699 ParsedSourceLocation::FromString(A->getValue()); 2700 if (Opts.CodeCompletionAt.FileName.empty()) 2701 Diags.Report(diag::err_drv_invalid_value) 2702 << A->getAsString(Args) << A->getValue(); 2703 } 2704 2705 Opts.Plugins = Args.getAllArgValues(OPT_load); 2706 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2707 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2708 // Only the -fmodule-file=<file> form. 2709 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2710 StringRef Val = A->getValue(); 2711 if (Val.find('=') == StringRef::npos) 2712 Opts.ModuleFiles.push_back(std::string(Val)); 2713 } 2714 2715 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2716 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2717 << "-emit-module"; 2718 2719 if (Args.hasArg(OPT_aux_target_cpu)) 2720 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2721 if (Args.hasArg(OPT_aux_target_feature)) 2722 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2723 2724 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2725 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2726 Diags.Report(diag::err_drv_argument_not_allowed_with) 2727 << "ARC migration" << "ObjC migration"; 2728 } 2729 2730 InputKind DashX(Language::Unknown); 2731 if (const Arg *A = Args.getLastArg(OPT_x)) { 2732 StringRef XValue = A->getValue(); 2733 2734 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2735 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2736 bool Preprocessed = XValue.consume_back("-cpp-output"); 2737 bool ModuleMap = XValue.consume_back("-module-map"); 2738 IsHeaderFile = !Preprocessed && !ModuleMap && 2739 XValue != "precompiled-header" && 2740 XValue.consume_back("-header"); 2741 2742 // Principal languages. 2743 DashX = llvm::StringSwitch<InputKind>(XValue) 2744 .Case("c", Language::C) 2745 .Case("cl", Language::OpenCL) 2746 .Case("clcpp", Language::OpenCLCXX) 2747 .Case("cuda", Language::CUDA) 2748 .Case("hip", Language::HIP) 2749 .Case("c++", Language::CXX) 2750 .Case("objective-c", Language::ObjC) 2751 .Case("objective-c++", Language::ObjCXX) 2752 .Case("renderscript", Language::RenderScript) 2753 .Default(Language::Unknown); 2754 2755 // "objc[++]-cpp-output" is an acceptable synonym for 2756 // "objective-c[++]-cpp-output". 2757 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2758 DashX = llvm::StringSwitch<InputKind>(XValue) 2759 .Case("objc", Language::ObjC) 2760 .Case("objc++", Language::ObjCXX) 2761 .Default(Language::Unknown); 2762 2763 // Some special cases cannot be combined with suffixes. 2764 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2765 DashX = llvm::StringSwitch<InputKind>(XValue) 2766 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2767 .Case("assembler-with-cpp", Language::Asm) 2768 .Cases("ast", "pcm", "precompiled-header", 2769 InputKind(Language::Unknown, InputKind::Precompiled)) 2770 .Case("ir", Language::LLVM_IR) 2771 .Default(Language::Unknown); 2772 2773 if (DashX.isUnknown()) 2774 Diags.Report(diag::err_drv_invalid_value) 2775 << A->getAsString(Args) << A->getValue(); 2776 2777 if (Preprocessed) 2778 DashX = DashX.getPreprocessed(); 2779 if (ModuleMap) 2780 DashX = DashX.withFormat(InputKind::ModuleMap); 2781 } 2782 2783 // '-' is the default input if none is given. 2784 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2785 Opts.Inputs.clear(); 2786 if (Inputs.empty()) 2787 Inputs.push_back("-"); 2788 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2789 InputKind IK = DashX; 2790 if (IK.isUnknown()) { 2791 IK = FrontendOptions::getInputKindForExtension( 2792 StringRef(Inputs[i]).rsplit('.').second); 2793 // FIXME: Warn on this? 2794 if (IK.isUnknown()) 2795 IK = Language::C; 2796 // FIXME: Remove this hack. 2797 if (i == 0) 2798 DashX = IK; 2799 } 2800 2801 bool IsSystem = false; 2802 2803 // The -emit-module action implicitly takes a module map. 2804 if (Opts.ProgramAction == frontend::GenerateModule && 2805 IK.getFormat() == InputKind::Source) { 2806 IK = IK.withFormat(InputKind::ModuleMap); 2807 IsSystem = Opts.IsSystemModule; 2808 } 2809 2810 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2811 } 2812 2813 Opts.DashX = DashX; 2814 2815 return Diags.getNumErrors() == NumErrorsBefore; 2816 } 2817 2818 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2819 void *MainAddr) { 2820 std::string ClangExecutable = 2821 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2822 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2823 } 2824 2825 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2826 SmallVectorImpl<const char *> &Args, 2827 CompilerInvocation::StringAllocator SA) { 2828 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2829 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2830 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2831 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2832 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2833 MERGER, EXTRACTOR, TABLE_INDEX) \ 2834 GENERATE_OPTION_WITH_MARSHALLING( \ 2835 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2836 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2837 #include "clang/Driver/Options.inc" 2838 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2839 2840 if (Opts.UseLibcxx) 2841 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2842 2843 if (!Opts.ModuleCachePath.empty()) 2844 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2845 2846 for (const auto &File : Opts.PrebuiltModuleFiles) 2847 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2848 2849 for (const auto &Path : Opts.PrebuiltModulePaths) 2850 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2851 2852 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2853 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2854 2855 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2856 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2857 llvm::Optional<bool> IsFramework, 2858 llvm::Optional<bool> IgnoreSysRoot) { 2859 return llvm::find(Groups, Entry.Group) != Groups.end() && 2860 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2861 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2862 }; 2863 2864 auto It = Opts.UserEntries.begin(); 2865 auto End = Opts.UserEntries.end(); 2866 2867 // Add -I..., -F..., and -index-header-map options in order. 2868 for (; It < End && 2869 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2870 ++It) { 2871 OptSpecifier Opt = [It, Matches]() { 2872 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2873 return OPT_F; 2874 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2875 return OPT_I; 2876 if (Matches(*It, frontend::Angled, true, true)) 2877 return OPT_F; 2878 if (Matches(*It, frontend::Angled, false, true)) 2879 return OPT_I; 2880 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2881 }(); 2882 2883 if (It->Group == frontend::IndexHeaderMap) 2884 GenerateArg(Args, OPT_index_header_map, SA); 2885 GenerateArg(Args, Opt, It->Path, SA); 2886 }; 2887 2888 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2889 // have already been generated as "-I[xx]yy". If that's the case, their 2890 // position on command line was such that this has no semantic impact on 2891 // include paths. 2892 for (; It < End && 2893 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2894 ++It) { 2895 OptSpecifier Opt = 2896 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2897 GenerateArg(Args, Opt, It->Path, SA); 2898 } 2899 2900 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2901 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2902 // command line was such that this has no semantic impact on include paths. 2903 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2904 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2905 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2906 GenerateArg(Args, OPT_iquote, It->Path, SA); 2907 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2908 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2909 It->Path, SA); 2910 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2911 GenerateArg(Args, OPT_iframework, It->Path, SA); 2912 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2913 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2914 2915 // Add the paths for the various language specific isystem flags. 2916 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2917 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2918 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2919 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2920 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2921 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2922 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2923 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2924 2925 // Add the internal paths from a driver that detects standard include paths. 2926 // Note: Some paths that came from "-internal-isystem" arguments may have 2927 // already been generated as "-isystem". If that's the case, their position on 2928 // command line was such that this has no semantic impact on include paths. 2929 for (; It < End && 2930 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2931 ++It) { 2932 OptSpecifier Opt = It->Group == frontend::System 2933 ? OPT_internal_isystem 2934 : OPT_internal_externc_isystem; 2935 GenerateArg(Args, Opt, It->Path, SA); 2936 } 2937 2938 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2939 2940 // Add the path prefixes which are implicitly treated as being system headers. 2941 for (const auto &P : Opts.SystemHeaderPrefixes) { 2942 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2943 : OPT_no_system_header_prefix; 2944 GenerateArg(Args, Opt, P.Prefix, SA); 2945 } 2946 2947 for (const std::string &F : Opts.VFSOverlayFiles) 2948 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2949 } 2950 2951 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2952 DiagnosticsEngine &Diags, 2953 const std::string &WorkingDir) { 2954 unsigned NumErrorsBefore = Diags.getNumErrors(); 2955 2956 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2957 2958 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2959 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2960 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2961 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2962 MERGER, EXTRACTOR, TABLE_INDEX) \ 2963 PARSE_OPTION_WITH_MARSHALLING( \ 2964 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2965 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2966 #include "clang/Driver/Options.inc" 2967 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2968 2969 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2970 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2971 2972 // Canonicalize -fmodules-cache-path before storing it. 2973 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2974 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2975 if (WorkingDir.empty()) 2976 llvm::sys::fs::make_absolute(P); 2977 else 2978 llvm::sys::fs::make_absolute(WorkingDir, P); 2979 } 2980 llvm::sys::path::remove_dots(P); 2981 Opts.ModuleCachePath = std::string(P.str()); 2982 2983 // Only the -fmodule-file=<name>=<file> form. 2984 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2985 StringRef Val = A->getValue(); 2986 if (Val.find('=') != StringRef::npos){ 2987 auto Split = Val.split('='); 2988 Opts.PrebuiltModuleFiles.insert( 2989 {std::string(Split.first), std::string(Split.second)}); 2990 } 2991 } 2992 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2993 Opts.AddPrebuiltModulePath(A->getValue()); 2994 2995 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2996 StringRef MacroDef = A->getValue(); 2997 Opts.ModulesIgnoreMacros.insert( 2998 llvm::CachedHashString(MacroDef.split('=').first)); 2999 } 3000 3001 // Add -I..., -F..., and -index-header-map options in order. 3002 bool IsIndexHeaderMap = false; 3003 bool IsSysrootSpecified = 3004 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3005 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3006 if (A->getOption().matches(OPT_index_header_map)) { 3007 // -index-header-map applies to the next -I or -F. 3008 IsIndexHeaderMap = true; 3009 continue; 3010 } 3011 3012 frontend::IncludeDirGroup Group = 3013 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3014 3015 bool IsFramework = A->getOption().matches(OPT_F); 3016 std::string Path = A->getValue(); 3017 3018 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3019 SmallString<32> Buffer; 3020 llvm::sys::path::append(Buffer, Opts.Sysroot, 3021 llvm::StringRef(A->getValue()).substr(1)); 3022 Path = std::string(Buffer.str()); 3023 } 3024 3025 Opts.AddPath(Path, Group, IsFramework, 3026 /*IgnoreSysroot*/ true); 3027 IsIndexHeaderMap = false; 3028 } 3029 3030 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3031 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3032 for (const auto *A : 3033 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3034 if (A->getOption().matches(OPT_iprefix)) 3035 Prefix = A->getValue(); 3036 else if (A->getOption().matches(OPT_iwithprefix)) 3037 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3038 else 3039 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3040 } 3041 3042 for (const auto *A : Args.filtered(OPT_idirafter)) 3043 Opts.AddPath(A->getValue(), frontend::After, false, true); 3044 for (const auto *A : Args.filtered(OPT_iquote)) 3045 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3046 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3047 Opts.AddPath(A->getValue(), frontend::System, false, 3048 !A->getOption().matches(OPT_iwithsysroot)); 3049 for (const auto *A : Args.filtered(OPT_iframework)) 3050 Opts.AddPath(A->getValue(), frontend::System, true, true); 3051 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3052 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3053 /*IgnoreSysRoot=*/false); 3054 3055 // Add the paths for the various language specific isystem flags. 3056 for (const auto *A : Args.filtered(OPT_c_isystem)) 3057 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3058 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3059 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3060 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3061 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3062 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3063 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3064 3065 // Add the internal paths from a driver that detects standard include paths. 3066 for (const auto *A : 3067 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3068 frontend::IncludeDirGroup Group = frontend::System; 3069 if (A->getOption().matches(OPT_internal_externc_isystem)) 3070 Group = frontend::ExternCSystem; 3071 Opts.AddPath(A->getValue(), Group, false, true); 3072 } 3073 3074 // Add the path prefixes which are implicitly treated as being system headers. 3075 for (const auto *A : 3076 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3077 Opts.AddSystemHeaderPrefix( 3078 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3079 3080 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3081 Opts.AddVFSOverlayFile(A->getValue()); 3082 3083 return Diags.getNumErrors() == NumErrorsBefore; 3084 } 3085 3086 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3087 const llvm::Triple &T, 3088 std::vector<std::string> &Includes, 3089 LangStandard::Kind LangStd) { 3090 // Set some properties which depend solely on the input kind; it would be nice 3091 // to move these to the language standard, and have the driver resolve the 3092 // input kind + language standard. 3093 // 3094 // FIXME: Perhaps a better model would be for a single source file to have 3095 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3096 // simultaneously active? 3097 if (IK.getLanguage() == Language::Asm) { 3098 Opts.AsmPreprocessor = 1; 3099 } else if (IK.isObjectiveC()) { 3100 Opts.ObjC = 1; 3101 } 3102 3103 if (LangStd == LangStandard::lang_unspecified) { 3104 // Based on the base language, pick one. 3105 switch (IK.getLanguage()) { 3106 case Language::Unknown: 3107 case Language::LLVM_IR: 3108 llvm_unreachable("Invalid input kind!"); 3109 case Language::OpenCL: 3110 LangStd = LangStandard::lang_opencl12; 3111 break; 3112 case Language::OpenCLCXX: 3113 LangStd = LangStandard::lang_openclcpp10; 3114 break; 3115 case Language::CUDA: 3116 LangStd = LangStandard::lang_cuda; 3117 break; 3118 case Language::Asm: 3119 case Language::C: 3120 #if defined(CLANG_DEFAULT_STD_C) 3121 LangStd = CLANG_DEFAULT_STD_C; 3122 #else 3123 // The PS4 uses C99 as the default C standard. 3124 if (T.isPS4()) 3125 LangStd = LangStandard::lang_gnu99; 3126 else 3127 LangStd = LangStandard::lang_gnu17; 3128 #endif 3129 break; 3130 case Language::ObjC: 3131 #if defined(CLANG_DEFAULT_STD_C) 3132 LangStd = CLANG_DEFAULT_STD_C; 3133 #else 3134 LangStd = LangStandard::lang_gnu11; 3135 #endif 3136 break; 3137 case Language::CXX: 3138 case Language::ObjCXX: 3139 #if defined(CLANG_DEFAULT_STD_CXX) 3140 LangStd = CLANG_DEFAULT_STD_CXX; 3141 #else 3142 LangStd = LangStandard::lang_gnucxx14; 3143 #endif 3144 break; 3145 case Language::RenderScript: 3146 LangStd = LangStandard::lang_c99; 3147 break; 3148 case Language::HIP: 3149 LangStd = LangStandard::lang_hip; 3150 break; 3151 } 3152 } 3153 3154 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3155 Opts.LangStd = LangStd; 3156 Opts.LineComment = Std.hasLineComments(); 3157 Opts.C99 = Std.isC99(); 3158 Opts.C11 = Std.isC11(); 3159 Opts.C17 = Std.isC17(); 3160 Opts.C2x = Std.isC2x(); 3161 Opts.CPlusPlus = Std.isCPlusPlus(); 3162 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3163 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3164 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3165 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3166 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3167 Opts.GNUMode = Std.isGNUMode(); 3168 Opts.GNUCVersion = 0; 3169 Opts.HexFloats = Std.hasHexFloats(); 3170 Opts.ImplicitInt = Std.hasImplicitInt(); 3171 3172 // Set OpenCL Version. 3173 Opts.OpenCL = Std.isOpenCL(); 3174 if (LangStd == LangStandard::lang_opencl10) 3175 Opts.OpenCLVersion = 100; 3176 else if (LangStd == LangStandard::lang_opencl11) 3177 Opts.OpenCLVersion = 110; 3178 else if (LangStd == LangStandard::lang_opencl12) 3179 Opts.OpenCLVersion = 120; 3180 else if (LangStd == LangStandard::lang_opencl20) 3181 Opts.OpenCLVersion = 200; 3182 else if (LangStd == LangStandard::lang_opencl30) 3183 Opts.OpenCLVersion = 300; 3184 else if (LangStd == LangStandard::lang_openclcpp10) 3185 Opts.OpenCLCPlusPlusVersion = 100; 3186 else if (LangStd == LangStandard::lang_openclcpp2021) 3187 Opts.OpenCLCPlusPlusVersion = 202100; 3188 3189 // OpenCL has some additional defaults. 3190 if (Opts.OpenCL) { 3191 Opts.AltiVec = 0; 3192 Opts.ZVector = 0; 3193 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3194 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3195 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3196 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3197 3198 // Include default header file for OpenCL. 3199 if (Opts.IncludeDefaultHeader) { 3200 if (Opts.DeclareOpenCLBuiltins) { 3201 // Only include base header file for builtin types and constants. 3202 Includes.push_back("opencl-c-base.h"); 3203 } else { 3204 Includes.push_back("opencl-c.h"); 3205 } 3206 } 3207 } 3208 3209 Opts.HIP = IK.getLanguage() == Language::HIP; 3210 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3211 if (Opts.HIP) { 3212 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3213 // fuses multiplication/addition instructions without contract flag from 3214 // device library functions in LLVM bitcode, which causes accuracy loss in 3215 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3216 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3217 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3218 // FP contract option is used to allow fuse across statements in frontend 3219 // whereas respecting contract flag in backend. 3220 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3221 } else if (Opts.CUDA) { 3222 // Allow fuse across statements disregarding pragmas. 3223 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3224 } 3225 3226 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3227 3228 // OpenCL and C++ both have bool, true, false keywords. 3229 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3230 3231 // OpenCL has half keyword 3232 Opts.Half = Opts.OpenCL; 3233 } 3234 3235 /// Check if input file kind and language standard are compatible. 3236 static bool IsInputCompatibleWithStandard(InputKind IK, 3237 const LangStandard &S) { 3238 switch (IK.getLanguage()) { 3239 case Language::Unknown: 3240 case Language::LLVM_IR: 3241 llvm_unreachable("should not parse language flags for this input"); 3242 3243 case Language::C: 3244 case Language::ObjC: 3245 case Language::RenderScript: 3246 return S.getLanguage() == Language::C; 3247 3248 case Language::OpenCL: 3249 return S.getLanguage() == Language::OpenCL || 3250 S.getLanguage() == Language::OpenCLCXX; 3251 3252 case Language::OpenCLCXX: 3253 return S.getLanguage() == Language::OpenCLCXX; 3254 3255 case Language::CXX: 3256 case Language::ObjCXX: 3257 return S.getLanguage() == Language::CXX; 3258 3259 case Language::CUDA: 3260 // FIXME: What -std= values should be permitted for CUDA compilations? 3261 return S.getLanguage() == Language::CUDA || 3262 S.getLanguage() == Language::CXX; 3263 3264 case Language::HIP: 3265 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3266 3267 case Language::Asm: 3268 // Accept (and ignore) all -std= values. 3269 // FIXME: The -std= value is not ignored; it affects the tokenization 3270 // and preprocessing rules if we're preprocessing this asm input. 3271 return true; 3272 } 3273 3274 llvm_unreachable("unexpected input language"); 3275 } 3276 3277 /// Get language name for given input kind. 3278 static const StringRef GetInputKindName(InputKind IK) { 3279 switch (IK.getLanguage()) { 3280 case Language::C: 3281 return "C"; 3282 case Language::ObjC: 3283 return "Objective-C"; 3284 case Language::CXX: 3285 return "C++"; 3286 case Language::ObjCXX: 3287 return "Objective-C++"; 3288 case Language::OpenCL: 3289 return "OpenCL"; 3290 case Language::OpenCLCXX: 3291 return "C++ for OpenCL"; 3292 case Language::CUDA: 3293 return "CUDA"; 3294 case Language::RenderScript: 3295 return "RenderScript"; 3296 case Language::HIP: 3297 return "HIP"; 3298 3299 case Language::Asm: 3300 return "Asm"; 3301 case Language::LLVM_IR: 3302 return "LLVM IR"; 3303 3304 case Language::Unknown: 3305 break; 3306 } 3307 llvm_unreachable("unknown input language"); 3308 } 3309 3310 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3311 SmallVectorImpl<const char *> &Args, 3312 StringAllocator SA, 3313 const llvm::Triple &T, InputKind IK) { 3314 if (IK.getFormat() == InputKind::Precompiled || 3315 IK.getLanguage() == Language::LLVM_IR) { 3316 if (Opts.ObjCAutoRefCount) 3317 GenerateArg(Args, OPT_fobjc_arc, SA); 3318 if (Opts.PICLevel != 0) 3319 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3320 if (Opts.PIE) 3321 GenerateArg(Args, OPT_pic_is_pie, SA); 3322 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3323 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3324 3325 return; 3326 } 3327 3328 OptSpecifier StdOpt; 3329 switch (Opts.LangStd) { 3330 case LangStandard::lang_opencl10: 3331 case LangStandard::lang_opencl11: 3332 case LangStandard::lang_opencl12: 3333 case LangStandard::lang_opencl20: 3334 case LangStandard::lang_opencl30: 3335 case LangStandard::lang_openclcpp10: 3336 case LangStandard::lang_openclcpp2021: 3337 StdOpt = OPT_cl_std_EQ; 3338 break; 3339 default: 3340 StdOpt = OPT_std_EQ; 3341 break; 3342 } 3343 3344 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3345 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3346 3347 if (Opts.IncludeDefaultHeader) 3348 GenerateArg(Args, OPT_finclude_default_header, SA); 3349 if (Opts.DeclareOpenCLBuiltins) 3350 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3351 3352 const LangOptions *LangOpts = &Opts; 3353 3354 #define LANG_OPTION_WITH_MARSHALLING( \ 3355 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3356 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3357 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3358 MERGER, EXTRACTOR, TABLE_INDEX) \ 3359 GENERATE_OPTION_WITH_MARSHALLING( \ 3360 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3361 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3362 #include "clang/Driver/Options.inc" 3363 #undef LANG_OPTION_WITH_MARSHALLING 3364 3365 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3366 3367 if (Opts.ObjC) { 3368 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3369 3370 if (Opts.GC == LangOptions::GCOnly) 3371 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3372 else if (Opts.GC == LangOptions::HybridGC) 3373 GenerateArg(Args, OPT_fobjc_gc, SA); 3374 else if (Opts.ObjCAutoRefCount == 1) 3375 GenerateArg(Args, OPT_fobjc_arc, SA); 3376 3377 if (Opts.ObjCWeakRuntime) 3378 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3379 3380 if (Opts.ObjCWeak) 3381 GenerateArg(Args, OPT_fobjc_weak, SA); 3382 3383 if (Opts.ObjCSubscriptingLegacyRuntime) 3384 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3385 } 3386 3387 if (Opts.GNUCVersion != 0) { 3388 unsigned Major = Opts.GNUCVersion / 100 / 100; 3389 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3390 unsigned Patch = Opts.GNUCVersion % 100; 3391 GenerateArg(Args, OPT_fgnuc_version_EQ, 3392 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3393 } 3394 3395 if (Opts.IgnoreXCOFFVisibility) 3396 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3397 3398 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3399 GenerateArg(Args, OPT_ftrapv, SA); 3400 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3401 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3402 GenerateArg(Args, OPT_fwrapv, SA); 3403 } 3404 3405 if (Opts.MSCompatibilityVersion != 0) { 3406 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3407 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3408 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3409 GenerateArg(Args, OPT_fms_compatibility_version, 3410 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3411 } 3412 3413 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3414 if (!Opts.Trigraphs) 3415 GenerateArg(Args, OPT_fno_trigraphs, SA); 3416 } else { 3417 if (Opts.Trigraphs) 3418 GenerateArg(Args, OPT_ftrigraphs, SA); 3419 } 3420 3421 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3422 GenerateArg(Args, OPT_fblocks, SA); 3423 3424 if (Opts.ConvergentFunctions && 3425 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3426 GenerateArg(Args, OPT_fconvergent_functions, SA); 3427 3428 if (Opts.NoBuiltin && !Opts.Freestanding) 3429 GenerateArg(Args, OPT_fno_builtin, SA); 3430 3431 if (!Opts.NoBuiltin) 3432 for (const auto &Func : Opts.NoBuiltinFuncs) 3433 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3434 3435 if (Opts.LongDoubleSize == 128) 3436 GenerateArg(Args, OPT_mlong_double_128, SA); 3437 else if (Opts.LongDoubleSize == 64) 3438 GenerateArg(Args, OPT_mlong_double_64, SA); 3439 3440 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3441 3442 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3443 // '-fopenmp-targets='. 3444 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3445 GenerateArg(Args, OPT_fopenmp, SA); 3446 3447 if (Opts.OpenMP != 50) 3448 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3449 3450 if (!Opts.OpenMPUseTLS) 3451 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3452 3453 if (Opts.OpenMPIsDevice) 3454 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3455 3456 if (Opts.OpenMPIRBuilder) 3457 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3458 } 3459 3460 if (Opts.OpenMPSimd) { 3461 GenerateArg(Args, OPT_fopenmp_simd, SA); 3462 3463 if (Opts.OpenMP != 50) 3464 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3465 } 3466 3467 if (Opts.OpenMPTargetNewRuntime) 3468 GenerateArg(Args, OPT_fopenmp_target_new_runtime, SA); 3469 3470 if (Opts.OpenMPTargetDebug != 0) 3471 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3472 Twine(Opts.OpenMPTargetDebug), SA); 3473 3474 if (Opts.OpenMPCUDANumSMs != 0) 3475 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3476 Twine(Opts.OpenMPCUDANumSMs), SA); 3477 3478 if (Opts.OpenMPCUDABlocksPerSM != 0) 3479 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3480 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3481 3482 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3483 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3484 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3485 3486 if (!Opts.OMPTargetTriples.empty()) { 3487 std::string Targets; 3488 llvm::raw_string_ostream OS(Targets); 3489 llvm::interleave( 3490 Opts.OMPTargetTriples, OS, 3491 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3492 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3493 } 3494 3495 if (!Opts.OMPHostIRFile.empty()) 3496 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3497 3498 if (Opts.OpenMPCUDAMode) 3499 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3500 3501 if (Opts.OpenMPCUDAForceFullRuntime) 3502 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3503 3504 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3505 // generated from CodeGenOptions. 3506 3507 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3508 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3509 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3510 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3511 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3512 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3513 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3514 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3515 3516 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3517 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3518 3519 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3520 for (const std::string &F : Opts.NoSanitizeFiles) 3521 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3522 3523 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3524 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3525 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3526 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3527 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3528 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3529 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3530 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3531 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3532 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3533 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3534 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3535 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3536 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3537 3538 if (Opts.getSignReturnAddressScope() == 3539 LangOptions::SignReturnAddressScopeKind::All) 3540 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3541 else if (Opts.getSignReturnAddressScope() == 3542 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3543 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3544 3545 if (Opts.getSignReturnAddressKey() == 3546 LangOptions::SignReturnAddressKeyKind::BKey) 3547 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3548 3549 if (Opts.CXXABI) 3550 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3551 SA); 3552 3553 if (Opts.RelativeCXXABIVTables) 3554 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3555 else 3556 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3557 3558 for (const auto &MP : Opts.MacroPrefixMap) 3559 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3560 } 3561 3562 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3563 InputKind IK, const llvm::Triple &T, 3564 std::vector<std::string> &Includes, 3565 DiagnosticsEngine &Diags) { 3566 unsigned NumErrorsBefore = Diags.getNumErrors(); 3567 3568 if (IK.getFormat() == InputKind::Precompiled || 3569 IK.getLanguage() == Language::LLVM_IR) { 3570 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3571 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3572 // what the input type is. 3573 if (Args.hasArg(OPT_fobjc_arc)) 3574 Opts.ObjCAutoRefCount = 1; 3575 // PICLevel and PIELevel are needed during code generation and this should 3576 // be set regardless of the input type. 3577 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3578 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3579 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3580 Diags, Opts.Sanitize); 3581 3582 return Diags.getNumErrors() == NumErrorsBefore; 3583 } 3584 3585 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3586 // FIXME: Should we really be parsing this for an Language::Asm input? 3587 3588 // FIXME: Cleanup per-file based stuff. 3589 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3590 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3591 LangStd = LangStandard::getLangKind(A->getValue()); 3592 if (LangStd == LangStandard::lang_unspecified) { 3593 Diags.Report(diag::err_drv_invalid_value) 3594 << A->getAsString(Args) << A->getValue(); 3595 // Report supported standards with short description. 3596 for (unsigned KindValue = 0; 3597 KindValue != LangStandard::lang_unspecified; 3598 ++KindValue) { 3599 const LangStandard &Std = LangStandard::getLangStandardForKind( 3600 static_cast<LangStandard::Kind>(KindValue)); 3601 if (IsInputCompatibleWithStandard(IK, Std)) { 3602 auto Diag = Diags.Report(diag::note_drv_use_standard); 3603 Diag << Std.getName() << Std.getDescription(); 3604 unsigned NumAliases = 0; 3605 #define LANGSTANDARD(id, name, lang, desc, features) 3606 #define LANGSTANDARD_ALIAS(id, alias) \ 3607 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3608 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3609 #include "clang/Basic/LangStandards.def" 3610 Diag << NumAliases; 3611 #define LANGSTANDARD(id, name, lang, desc, features) 3612 #define LANGSTANDARD_ALIAS(id, alias) \ 3613 if (KindValue == LangStandard::lang_##id) Diag << alias; 3614 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3615 #include "clang/Basic/LangStandards.def" 3616 } 3617 } 3618 } else { 3619 // Valid standard, check to make sure language and standard are 3620 // compatible. 3621 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3622 if (!IsInputCompatibleWithStandard(IK, Std)) { 3623 Diags.Report(diag::err_drv_argument_not_allowed_with) 3624 << A->getAsString(Args) << GetInputKindName(IK); 3625 } 3626 } 3627 } 3628 3629 // -cl-std only applies for OpenCL language standards. 3630 // Override the -std option in this case. 3631 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3632 LangStandard::Kind OpenCLLangStd 3633 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3634 .Cases("cl", "CL", LangStandard::lang_opencl10) 3635 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3636 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3637 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3638 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3639 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3640 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3641 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3642 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3643 .Default(LangStandard::lang_unspecified); 3644 3645 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3646 Diags.Report(diag::err_drv_invalid_value) 3647 << A->getAsString(Args) << A->getValue(); 3648 } 3649 else 3650 LangStd = OpenCLLangStd; 3651 } 3652 3653 // These need to be parsed now. They are used to set OpenCL defaults. 3654 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3655 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3656 3657 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3658 3659 // The key paths of codegen options defined in Options.td start with 3660 // "LangOpts->". Let's provide the expected variable name and type. 3661 LangOptions *LangOpts = &Opts; 3662 3663 #define LANG_OPTION_WITH_MARSHALLING( \ 3664 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3665 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3666 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3667 MERGER, EXTRACTOR, TABLE_INDEX) \ 3668 PARSE_OPTION_WITH_MARSHALLING( \ 3669 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3670 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3671 #include "clang/Driver/Options.inc" 3672 #undef LANG_OPTION_WITH_MARSHALLING 3673 3674 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3675 StringRef Name = A->getValue(); 3676 if (Name == "full" || Name == "branch") { 3677 Opts.CFProtectionBranch = 1; 3678 } 3679 } 3680 3681 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3682 !Args.hasArg(OPT_sycl_std_EQ)) { 3683 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3684 // provide -sycl-std=, we want to default it to whatever the default SYCL 3685 // version is. I could not find a way to express this with the options 3686 // tablegen because we still want this value to be SYCL_None when the user 3687 // is not in device or host mode. 3688 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3689 } 3690 3691 if (Opts.ObjC) { 3692 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3693 StringRef value = arg->getValue(); 3694 if (Opts.ObjCRuntime.tryParse(value)) 3695 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3696 } 3697 3698 if (Args.hasArg(OPT_fobjc_gc_only)) 3699 Opts.setGC(LangOptions::GCOnly); 3700 else if (Args.hasArg(OPT_fobjc_gc)) 3701 Opts.setGC(LangOptions::HybridGC); 3702 else if (Args.hasArg(OPT_fobjc_arc)) { 3703 Opts.ObjCAutoRefCount = 1; 3704 if (!Opts.ObjCRuntime.allowsARC()) 3705 Diags.Report(diag::err_arc_unsupported_on_runtime); 3706 } 3707 3708 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3709 // whether the feature is actually enabled. This is predominantly 3710 // determined by -fobjc-runtime, but we allow it to be overridden 3711 // from the command line for testing purposes. 3712 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3713 Opts.ObjCWeakRuntime = 1; 3714 else 3715 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3716 3717 // ObjCWeak determines whether __weak is actually enabled. 3718 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3719 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3720 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3721 assert(!Opts.ObjCWeak); 3722 } else if (Opts.getGC() != LangOptions::NonGC) { 3723 Diags.Report(diag::err_objc_weak_with_gc); 3724 } else if (!Opts.ObjCWeakRuntime) { 3725 Diags.Report(diag::err_objc_weak_unsupported); 3726 } else { 3727 Opts.ObjCWeak = 1; 3728 } 3729 } else if (Opts.ObjCAutoRefCount) { 3730 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3731 } 3732 3733 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3734 Opts.ObjCSubscriptingLegacyRuntime = 3735 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3736 } 3737 3738 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3739 // Check that the version has 1 to 3 components and the minor and patch 3740 // versions fit in two decimal digits. 3741 VersionTuple GNUCVer; 3742 bool Invalid = GNUCVer.tryParse(A->getValue()); 3743 unsigned Major = GNUCVer.getMajor(); 3744 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3745 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3746 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3747 Diags.Report(diag::err_drv_invalid_value) 3748 << A->getAsString(Args) << A->getValue(); 3749 } 3750 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3751 } 3752 3753 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3754 // no -fvisibility=* option. 3755 // This is the reason why '-fvisibility' needs to be always generated: 3756 // its absence implies '-mignore-xcoff-visibility'. 3757 // 3758 // Suppose the original cc1 command line does contain '-fvisibility default': 3759 // '-mignore-xcoff-visibility' should not be implied. 3760 // * If '-fvisibility' is not generated (as most options with default values 3761 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3762 // the command line semantics. 3763 // * If '-fvisibility' is generated regardless of its presence and value, 3764 // '-mignore-xcoff-visibility' won't be implied and the command line 3765 // semantics are kept intact. 3766 // 3767 // When the original cc1 command line does **not** contain '-fvisibility', 3768 // '-mignore-xcoff-visibility' is implied. The generated command line will 3769 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3770 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3771 // produce the same arguments. 3772 3773 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3774 !Args.hasArg(OPT_fvisibility))) 3775 Opts.IgnoreXCOFFVisibility = 1; 3776 3777 if (Args.hasArg(OPT_ftrapv)) { 3778 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3779 // Set the handler, if one is specified. 3780 Opts.OverflowHandler = 3781 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3782 } 3783 else if (Args.hasArg(OPT_fwrapv)) 3784 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3785 3786 Opts.MSCompatibilityVersion = 0; 3787 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3788 VersionTuple VT; 3789 if (VT.tryParse(A->getValue())) 3790 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3791 << A->getValue(); 3792 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3793 VT.getMinor().getValueOr(0) * 100000 + 3794 VT.getSubminor().getValueOr(0); 3795 } 3796 3797 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3798 // is specified, or -std is set to a conforming mode. 3799 // Trigraphs are disabled by default in c++1z onwards. 3800 // For z/OS, trigraphs are enabled by default (without regard to the above). 3801 Opts.Trigraphs = 3802 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3803 Opts.Trigraphs = 3804 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3805 3806 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3807 && Opts.OpenCLVersion == 200); 3808 3809 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3810 Opts.SYCLIsDevice || 3811 Args.hasArg(OPT_fconvergent_functions); 3812 3813 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3814 if (!Opts.NoBuiltin) 3815 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3816 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3817 ? 128 3818 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3819 if (Opts.FastRelaxedMath) 3820 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3821 llvm::sort(Opts.ModuleFeatures); 3822 3823 // -mrtd option 3824 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3825 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3826 Diags.Report(diag::err_drv_argument_not_allowed_with) 3827 << A->getSpelling() << "-fdefault-calling-conv"; 3828 else { 3829 if (T.getArch() != llvm::Triple::x86) 3830 Diags.Report(diag::err_drv_argument_not_allowed_with) 3831 << A->getSpelling() << T.getTriple(); 3832 else 3833 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3834 } 3835 } 3836 3837 // Check if -fopenmp is specified and set default version to 5.0. 3838 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3839 // Check if -fopenmp-simd is specified. 3840 bool IsSimdSpecified = 3841 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3842 /*Default=*/false); 3843 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3844 Opts.OpenMPUseTLS = 3845 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3846 Opts.OpenMPIsDevice = 3847 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3848 Opts.OpenMPIRBuilder = 3849 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3850 bool IsTargetSpecified = 3851 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3852 Opts.OpenMPTargetNewRuntime = 3853 Opts.OpenMPIsDevice && 3854 Args.hasArg(options::OPT_fopenmp_target_new_runtime); 3855 3856 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3857 3858 if (Opts.OpenMP || Opts.OpenMPSimd) { 3859 if (int Version = getLastArgIntValue( 3860 Args, OPT_fopenmp_version_EQ, 3861 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3862 Opts.OpenMP = Version; 3863 // Provide diagnostic when a given target is not expected to be an OpenMP 3864 // device or host. 3865 if (!Opts.OpenMPIsDevice) { 3866 switch (T.getArch()) { 3867 default: 3868 break; 3869 // Add unsupported host targets here: 3870 case llvm::Triple::nvptx: 3871 case llvm::Triple::nvptx64: 3872 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3873 break; 3874 } 3875 } 3876 } 3877 3878 // Set the flag to prevent the implementation from emitting device exception 3879 // handling code for those requiring so. 3880 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3881 Opts.OpenCLCPlusPlus) { 3882 3883 Opts.Exceptions = 0; 3884 Opts.CXXExceptions = 0; 3885 } 3886 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3887 Opts.OpenMPCUDANumSMs = 3888 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3889 Opts.OpenMPCUDANumSMs, Diags); 3890 Opts.OpenMPCUDABlocksPerSM = 3891 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3892 Opts.OpenMPCUDABlocksPerSM, Diags); 3893 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3894 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3895 Opts.OpenMPCUDAReductionBufNum, Diags); 3896 } 3897 3898 // Set the value of the debugging flag used in the new offloading device RTL. 3899 // Set either by a specific value or to a default if not specified. 3900 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3901 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3902 if (Opts.OpenMPTargetNewRuntime) { 3903 Opts.OpenMPTargetDebug = getLastArgIntValue( 3904 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3905 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3906 Opts.OpenMPTargetDebug = 1; 3907 } else { 3908 Diags.Report(diag::err_drv_debug_no_new_runtime); 3909 } 3910 } 3911 3912 // Get the OpenMP target triples if any. 3913 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3914 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3915 auto getArchPtrSize = [](const llvm::Triple &T) { 3916 if (T.isArch16Bit()) 3917 return Arch16Bit; 3918 if (T.isArch32Bit()) 3919 return Arch32Bit; 3920 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3921 return Arch64Bit; 3922 }; 3923 3924 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3925 llvm::Triple TT(A->getValue(i)); 3926 3927 if (TT.getArch() == llvm::Triple::UnknownArch || 3928 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3929 TT.getArch() == llvm::Triple::nvptx || 3930 TT.getArch() == llvm::Triple::nvptx64 || 3931 TT.getArch() == llvm::Triple::amdgcn || 3932 TT.getArch() == llvm::Triple::x86 || 3933 TT.getArch() == llvm::Triple::x86_64)) 3934 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3935 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3936 Diags.Report(diag::err_drv_incompatible_omp_arch) 3937 << A->getValue(i) << T.str(); 3938 else 3939 Opts.OMPTargetTriples.push_back(TT); 3940 } 3941 } 3942 3943 // Get OpenMP host file path if any and report if a non existent file is 3944 // found 3945 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3946 Opts.OMPHostIRFile = A->getValue(); 3947 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3948 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3949 << Opts.OMPHostIRFile; 3950 } 3951 3952 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3953 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3954 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3955 3956 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3957 Opts.OpenMPCUDAForceFullRuntime = 3958 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3959 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3960 3961 // FIXME: Eliminate this dependency. 3962 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3963 OptSize = getOptimizationLevelSize(Args); 3964 Opts.Optimize = Opt != 0; 3965 Opts.OptimizeSize = OptSize != 0; 3966 3967 // This is the __NO_INLINE__ define, which just depends on things like the 3968 // optimization level and -fno-inline, not actually whether the backend has 3969 // inlining enabled. 3970 Opts.NoInlineDefine = !Opts.Optimize; 3971 if (Arg *InlineArg = Args.getLastArg( 3972 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3973 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3974 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3975 Opts.NoInlineDefine = true; 3976 3977 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3978 StringRef Val = A->getValue(); 3979 if (Val == "fast") 3980 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3981 else if (Val == "on") 3982 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3983 else if (Val == "off") 3984 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3985 else if (Val == "fast-honor-pragmas") 3986 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3987 else 3988 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3989 } 3990 3991 // Parse -fsanitize= arguments. 3992 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3993 Diags, Opts.Sanitize); 3994 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3995 std::vector<std::string> systemIgnorelists = 3996 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3997 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3998 systemIgnorelists.begin(), 3999 systemIgnorelists.end()); 4000 4001 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4002 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4003 4004 StringRef Ver = A->getValue(); 4005 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4006 unsigned Major, Minor = 0; 4007 4008 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4009 // y or y.0 (4 <= y <= current version). 4010 if (!VerParts.first.startswith("0") && 4011 !VerParts.first.getAsInteger(10, Major) && 4012 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4013 (Major == 3 ? VerParts.second.size() == 1 && 4014 !VerParts.second.getAsInteger(10, Minor) 4015 : VerParts.first.size() == Ver.size() || 4016 VerParts.second == "0")) { 4017 // Got a valid version number. 4018 if (Major == 3 && Minor <= 8) 4019 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4020 else if (Major <= 4) 4021 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4022 else if (Major <= 6) 4023 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4024 else if (Major <= 7) 4025 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4026 else if (Major <= 9) 4027 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4028 else if (Major <= 11) 4029 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4030 else if (Major <= 12) 4031 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4032 } else if (Ver != "latest") { 4033 Diags.Report(diag::err_drv_invalid_value) 4034 << A->getAsString(Args) << A->getValue(); 4035 } 4036 } 4037 4038 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4039 StringRef SignScope = A->getValue(); 4040 4041 if (SignScope.equals_insensitive("none")) 4042 Opts.setSignReturnAddressScope( 4043 LangOptions::SignReturnAddressScopeKind::None); 4044 else if (SignScope.equals_insensitive("all")) 4045 Opts.setSignReturnAddressScope( 4046 LangOptions::SignReturnAddressScopeKind::All); 4047 else if (SignScope.equals_insensitive("non-leaf")) 4048 Opts.setSignReturnAddressScope( 4049 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4050 else 4051 Diags.Report(diag::err_drv_invalid_value) 4052 << A->getAsString(Args) << SignScope; 4053 4054 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4055 StringRef SignKey = A->getValue(); 4056 if (!SignScope.empty() && !SignKey.empty()) { 4057 if (SignKey.equals_insensitive("a_key")) 4058 Opts.setSignReturnAddressKey( 4059 LangOptions::SignReturnAddressKeyKind::AKey); 4060 else if (SignKey.equals_insensitive("b_key")) 4061 Opts.setSignReturnAddressKey( 4062 LangOptions::SignReturnAddressKeyKind::BKey); 4063 else 4064 Diags.Report(diag::err_drv_invalid_value) 4065 << A->getAsString(Args) << SignKey; 4066 } 4067 } 4068 } 4069 4070 // The value can be empty, which indicates the system default should be used. 4071 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4072 if (!CXXABI.empty()) { 4073 if (!TargetCXXABI::isABI(CXXABI)) { 4074 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4075 } else { 4076 auto Kind = TargetCXXABI::getKind(CXXABI); 4077 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4078 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4079 else 4080 Opts.CXXABI = Kind; 4081 } 4082 } 4083 4084 Opts.RelativeCXXABIVTables = 4085 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4086 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4087 TargetCXXABI::usesRelativeVTables(T)); 4088 4089 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4090 auto Split = StringRef(A).split('='); 4091 Opts.MacroPrefixMap.insert( 4092 {std::string(Split.first), std::string(Split.second)}); 4093 } 4094 4095 return Diags.getNumErrors() == NumErrorsBefore; 4096 } 4097 4098 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4099 switch (Action) { 4100 case frontend::ASTDeclList: 4101 case frontend::ASTDump: 4102 case frontend::ASTPrint: 4103 case frontend::ASTView: 4104 case frontend::EmitAssembly: 4105 case frontend::EmitBC: 4106 case frontend::EmitHTML: 4107 case frontend::EmitLLVM: 4108 case frontend::EmitLLVMOnly: 4109 case frontend::EmitCodeGenOnly: 4110 case frontend::EmitObj: 4111 case frontend::FixIt: 4112 case frontend::GenerateModule: 4113 case frontend::GenerateModuleInterface: 4114 case frontend::GenerateHeaderModule: 4115 case frontend::GeneratePCH: 4116 case frontend::GenerateInterfaceStubs: 4117 case frontend::ParseSyntaxOnly: 4118 case frontend::ModuleFileInfo: 4119 case frontend::VerifyPCH: 4120 case frontend::PluginAction: 4121 case frontend::RewriteObjC: 4122 case frontend::RewriteTest: 4123 case frontend::RunAnalysis: 4124 case frontend::TemplightDump: 4125 case frontend::MigrateSource: 4126 return false; 4127 4128 case frontend::DumpCompilerOptions: 4129 case frontend::DumpRawTokens: 4130 case frontend::DumpTokens: 4131 case frontend::InitOnly: 4132 case frontend::PrintPreamble: 4133 case frontend::PrintPreprocessedInput: 4134 case frontend::RewriteMacros: 4135 case frontend::RunPreprocessorOnly: 4136 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4137 return true; 4138 } 4139 llvm_unreachable("invalid frontend action"); 4140 } 4141 4142 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4143 SmallVectorImpl<const char *> &Args, 4144 CompilerInvocation::StringAllocator SA, 4145 const LangOptions &LangOpts, 4146 const FrontendOptions &FrontendOpts, 4147 const CodeGenOptions &CodeGenOpts) { 4148 PreprocessorOptions *PreprocessorOpts = &Opts; 4149 4150 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4151 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4152 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4153 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4154 MERGER, EXTRACTOR, TABLE_INDEX) \ 4155 GENERATE_OPTION_WITH_MARSHALLING( \ 4156 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4157 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4158 #include "clang/Driver/Options.inc" 4159 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4160 4161 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4162 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4163 4164 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4165 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4166 4167 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4168 GenerateArg(Args, OPT_preamble_bytes_EQ, 4169 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4170 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4171 SA); 4172 4173 for (const auto &M : Opts.Macros) { 4174 // Don't generate __CET__ macro definitions. They are implied by the 4175 // -fcf-protection option that is generated elsewhere. 4176 if (M.first == "__CET__=1" && !M.second && 4177 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4178 continue; 4179 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4180 !CodeGenOpts.CFProtectionBranch) 4181 continue; 4182 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4183 CodeGenOpts.CFProtectionBranch) 4184 continue; 4185 4186 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4187 } 4188 4189 for (const auto &I : Opts.Includes) { 4190 // Don't generate OpenCL includes. They are implied by other flags that are 4191 // generated elsewhere. 4192 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4193 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4194 I == "opencl-c.h")) 4195 continue; 4196 4197 GenerateArg(Args, OPT_include, I, SA); 4198 } 4199 4200 for (const auto &CI : Opts.ChainedIncludes) 4201 GenerateArg(Args, OPT_chain_include, CI, SA); 4202 4203 for (const auto &RF : Opts.RemappedFiles) 4204 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4205 4206 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4207 // generated elsewhere. 4208 } 4209 4210 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4211 DiagnosticsEngine &Diags, 4212 frontend::ActionKind Action, 4213 const FrontendOptions &FrontendOpts) { 4214 unsigned NumErrorsBefore = Diags.getNumErrors(); 4215 4216 PreprocessorOptions *PreprocessorOpts = &Opts; 4217 4218 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4219 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4220 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4221 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4222 MERGER, EXTRACTOR, TABLE_INDEX) \ 4223 PARSE_OPTION_WITH_MARSHALLING( \ 4224 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4225 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4226 #include "clang/Driver/Options.inc" 4227 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4228 4229 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4230 Args.hasArg(OPT_pch_through_hdrstop_use); 4231 4232 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4233 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4234 4235 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4236 StringRef Value(A->getValue()); 4237 size_t Comma = Value.find(','); 4238 unsigned Bytes = 0; 4239 unsigned EndOfLine = 0; 4240 4241 if (Comma == StringRef::npos || 4242 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4243 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4244 Diags.Report(diag::err_drv_preamble_format); 4245 else { 4246 Opts.PrecompiledPreambleBytes.first = Bytes; 4247 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4248 } 4249 } 4250 4251 // Add the __CET__ macro if a CFProtection option is set. 4252 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4253 StringRef Name = A->getValue(); 4254 if (Name == "branch") 4255 Opts.addMacroDef("__CET__=1"); 4256 else if (Name == "return") 4257 Opts.addMacroDef("__CET__=2"); 4258 else if (Name == "full") 4259 Opts.addMacroDef("__CET__=3"); 4260 } 4261 4262 // Add macros from the command line. 4263 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4264 if (A->getOption().matches(OPT_D)) 4265 Opts.addMacroDef(A->getValue()); 4266 else 4267 Opts.addMacroUndef(A->getValue()); 4268 } 4269 4270 // Add the ordered list of -includes. 4271 for (const auto *A : Args.filtered(OPT_include)) 4272 Opts.Includes.emplace_back(A->getValue()); 4273 4274 for (const auto *A : Args.filtered(OPT_chain_include)) 4275 Opts.ChainedIncludes.emplace_back(A->getValue()); 4276 4277 for (const auto *A : Args.filtered(OPT_remap_file)) { 4278 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4279 4280 if (Split.second.empty()) { 4281 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4282 continue; 4283 } 4284 4285 Opts.addRemappedFile(Split.first, Split.second); 4286 } 4287 4288 // Always avoid lexing editor placeholders when we're just running the 4289 // preprocessor as we never want to emit the 4290 // "editor placeholder in source file" error in PP only mode. 4291 if (isStrictlyPreprocessorAction(Action)) 4292 Opts.LexEditorPlaceholders = false; 4293 4294 return Diags.getNumErrors() == NumErrorsBefore; 4295 } 4296 4297 static void GeneratePreprocessorOutputArgs( 4298 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4299 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4300 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4301 4302 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4303 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4304 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4305 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4306 MERGER, EXTRACTOR, TABLE_INDEX) \ 4307 GENERATE_OPTION_WITH_MARSHALLING( \ 4308 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4309 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4310 #include "clang/Driver/Options.inc" 4311 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4312 4313 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4314 if (Generate_dM) 4315 GenerateArg(Args, OPT_dM, SA); 4316 if (!Generate_dM && Opts.ShowMacros) 4317 GenerateArg(Args, OPT_dD, SA); 4318 } 4319 4320 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4321 ArgList &Args, DiagnosticsEngine &Diags, 4322 frontend::ActionKind Action) { 4323 unsigned NumErrorsBefore = Diags.getNumErrors(); 4324 4325 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4326 4327 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4328 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4329 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4330 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4331 MERGER, EXTRACTOR, TABLE_INDEX) \ 4332 PARSE_OPTION_WITH_MARSHALLING( \ 4333 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4334 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4335 #include "clang/Driver/Options.inc" 4336 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4337 4338 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4339 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4340 4341 return Diags.getNumErrors() == NumErrorsBefore; 4342 } 4343 4344 static void GenerateTargetArgs(const TargetOptions &Opts, 4345 SmallVectorImpl<const char *> &Args, 4346 CompilerInvocation::StringAllocator SA) { 4347 const TargetOptions *TargetOpts = &Opts; 4348 #define TARGET_OPTION_WITH_MARSHALLING( \ 4349 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4350 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4351 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4352 MERGER, EXTRACTOR, TABLE_INDEX) \ 4353 GENERATE_OPTION_WITH_MARSHALLING( \ 4354 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4355 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4356 #include "clang/Driver/Options.inc" 4357 #undef TARGET_OPTION_WITH_MARSHALLING 4358 4359 if (!Opts.SDKVersion.empty()) 4360 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4361 SA); 4362 } 4363 4364 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4365 DiagnosticsEngine &Diags) { 4366 unsigned NumErrorsBefore = Diags.getNumErrors(); 4367 4368 TargetOptions *TargetOpts = &Opts; 4369 4370 #define TARGET_OPTION_WITH_MARSHALLING( \ 4371 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4372 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4373 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4374 MERGER, EXTRACTOR, TABLE_INDEX) \ 4375 PARSE_OPTION_WITH_MARSHALLING( \ 4376 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4377 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4378 #include "clang/Driver/Options.inc" 4379 #undef TARGET_OPTION_WITH_MARSHALLING 4380 4381 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4382 llvm::VersionTuple Version; 4383 if (Version.tryParse(A->getValue())) 4384 Diags.Report(diag::err_drv_invalid_value) 4385 << A->getAsString(Args) << A->getValue(); 4386 else 4387 Opts.SDKVersion = Version; 4388 } 4389 4390 return Diags.getNumErrors() == NumErrorsBefore; 4391 } 4392 4393 bool CompilerInvocation::CreateFromArgsImpl( 4394 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4395 DiagnosticsEngine &Diags, const char *Argv0) { 4396 unsigned NumErrorsBefore = Diags.getNumErrors(); 4397 4398 // Parse the arguments. 4399 const OptTable &Opts = getDriverOptTable(); 4400 const unsigned IncludedFlagsBitmask = options::CC1Option; 4401 unsigned MissingArgIndex, MissingArgCount; 4402 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4403 MissingArgCount, IncludedFlagsBitmask); 4404 LangOptions &LangOpts = *Res.getLangOpts(); 4405 4406 // Check for missing argument error. 4407 if (MissingArgCount) 4408 Diags.Report(diag::err_drv_missing_argument) 4409 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4410 4411 // Issue errors on unknown arguments. 4412 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4413 auto ArgString = A->getAsString(Args); 4414 std::string Nearest; 4415 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4416 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4417 else 4418 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4419 << ArgString << Nearest; 4420 } 4421 4422 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4423 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4424 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4425 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4426 /*DefaultDiagColor=*/false); 4427 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4428 // FIXME: We shouldn't have to pass the DashX option around here 4429 InputKind DashX = Res.getFrontendOpts().DashX; 4430 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4431 llvm::Triple T(Res.getTargetOpts().Triple); 4432 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4433 Res.getFileSystemOpts().WorkingDir); 4434 4435 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4436 Diags); 4437 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4438 LangOpts.ObjCExceptions = 1; 4439 4440 if (LangOpts.CUDA) { 4441 // During CUDA device-side compilation, the aux triple is the 4442 // triple used for host compilation. 4443 if (LangOpts.CUDAIsDevice) 4444 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4445 } 4446 4447 // Set the triple of the host for OpenMP device compile. 4448 if (LangOpts.OpenMPIsDevice) 4449 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4450 4451 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4452 Res.getFrontendOpts().OutputFile, LangOpts); 4453 4454 // FIXME: Override value name discarding when asan or msan is used because the 4455 // backend passes depend on the name of the alloca in order to print out 4456 // names. 4457 Res.getCodeGenOpts().DiscardValueNames &= 4458 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4459 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4460 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4461 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4462 4463 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4464 Res.getFrontendOpts().ProgramAction, 4465 Res.getFrontendOpts()); 4466 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4467 Res.getFrontendOpts().ProgramAction); 4468 4469 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4470 Res.getFrontendOpts().ProgramAction, 4471 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4472 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4473 Res.getDependencyOutputOpts().Targets.empty()) 4474 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4475 4476 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4477 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4478 !Res.getLangOpts()->Sanitize.empty()) { 4479 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4480 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4481 } 4482 4483 // Store the command-line for using in the CodeView backend. 4484 Res.getCodeGenOpts().Argv0 = Argv0; 4485 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4486 4487 FixupInvocation(Res, Diags, Args, DashX); 4488 4489 return Diags.getNumErrors() == NumErrorsBefore; 4490 } 4491 4492 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4493 ArrayRef<const char *> CommandLineArgs, 4494 DiagnosticsEngine &Diags, 4495 const char *Argv0) { 4496 CompilerInvocation DummyInvocation; 4497 4498 return RoundTrip( 4499 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4500 DiagnosticsEngine &Diags, const char *Argv0) { 4501 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4502 }, 4503 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4504 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4505 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4506 } 4507 4508 std::string CompilerInvocation::getModuleHash() const { 4509 // FIXME: Consider using SHA1 instead of MD5. 4510 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4511 4512 // Note: For QoI reasons, the things we use as a hash here should all be 4513 // dumped via the -module-info flag. 4514 4515 // Start the signature with the compiler version. 4516 HBuilder.add(getClangFullRepositoryVersion()); 4517 4518 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4519 // and getClangFullRepositoryVersion() doesn't include git revision. 4520 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4521 4522 // Extend the signature with the language options 4523 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4524 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4525 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4526 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4527 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4528 #include "clang/Basic/LangOptions.def" 4529 4530 HBuilder.addRange(LangOpts->ModuleFeatures); 4531 4532 HBuilder.add(LangOpts->ObjCRuntime); 4533 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4534 4535 // Extend the signature with the target options. 4536 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4537 TargetOpts->ABI); 4538 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4539 4540 // Extend the signature with preprocessor options. 4541 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4542 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4543 4544 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4545 for (const auto &Macro : getPreprocessorOpts().Macros) { 4546 // If we're supposed to ignore this macro for the purposes of modules, 4547 // don't put it into the hash. 4548 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4549 // Check whether we're ignoring this macro. 4550 StringRef MacroDef = Macro.first; 4551 if (hsOpts.ModulesIgnoreMacros.count( 4552 llvm::CachedHashString(MacroDef.split('=').first))) 4553 continue; 4554 } 4555 4556 HBuilder.add(Macro); 4557 } 4558 4559 // Extend the signature with the sysroot and other header search options. 4560 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4561 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4562 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4563 hsOpts.ModulesValidateDiagnosticOptions); 4564 HBuilder.add(hsOpts.ResourceDir); 4565 4566 if (hsOpts.ModulesStrictContextHash) { 4567 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4568 HBuilder.addRange(hsOpts.UserEntries); 4569 4570 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4571 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4572 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4573 HBuilder.add(diagOpts.get##Name()); 4574 #include "clang/Basic/DiagnosticOptions.def" 4575 #undef DIAGOPT 4576 #undef ENUM_DIAGOPT 4577 } 4578 4579 // Extend the signature with the user build path. 4580 HBuilder.add(hsOpts.ModuleUserBuildPath); 4581 4582 // Extend the signature with the module file extensions. 4583 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4584 ext->hashExtension(HBuilder); 4585 4586 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4587 // affects the debug info in the PCM. 4588 if (getCodeGenOpts().DebugTypeExtRefs) 4589 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4590 4591 // Extend the signature with the enabled sanitizers, if at least one is 4592 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4593 SanitizerSet SanHash = LangOpts->Sanitize; 4594 SanHash.clear(getPPTransparentSanitizers()); 4595 if (!SanHash.empty()) 4596 HBuilder.add(SanHash.Mask); 4597 4598 llvm::MD5::MD5Result Result; 4599 HBuilder.getHasher().final(Result); 4600 uint64_t Hash = Result.high() ^ Result.low(); 4601 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4602 } 4603 4604 void CompilerInvocation::generateCC1CommandLine( 4605 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4606 llvm::Triple T(TargetOpts->Triple); 4607 4608 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4609 GenerateMigratorArgs(MigratorOpts, Args, SA); 4610 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4611 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4612 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4613 GenerateTargetArgs(*TargetOpts, Args, SA); 4614 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4615 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4616 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4617 &*LangOpts); 4618 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4619 CodeGenOpts); 4620 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4621 FrontendOpts.ProgramAction); 4622 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4623 } 4624 4625 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4626 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4627 DiagnosticsEngine &Diags) { 4628 return createVFSFromCompilerInvocation(CI, Diags, 4629 llvm::vfs::getRealFileSystem()); 4630 } 4631 4632 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4633 clang::createVFSFromCompilerInvocation( 4634 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4635 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4636 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4637 return BaseFS; 4638 4639 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4640 // earlier vfs files are on the bottom 4641 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4642 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4643 Result->getBufferForFile(File); 4644 if (!Buffer) { 4645 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4646 continue; 4647 } 4648 4649 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4650 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4651 /*DiagContext*/ nullptr, Result); 4652 if (!FS) { 4653 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4654 continue; 4655 } 4656 4657 Result = FS; 4658 } 4659 return Result; 4660 } 4661