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 auto TNK = Opts.getDebugSimpleTemplateNames(); 1415 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1416 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1417 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1418 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1419 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1420 } 1421 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1422 // it or PGOUseInstrumentor. 1423 1424 if (Opts.TimePasses) { 1425 if (Opts.TimePassesPerRun) 1426 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1427 else 1428 GenerateArg(Args, OPT_ftime_report, SA); 1429 } 1430 1431 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1432 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1433 1434 if (Opts.PrepareForThinLTO) 1435 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1436 1437 if (!Opts.ThinLTOIndexFile.empty()) 1438 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1439 1440 if (Opts.SaveTempsFilePrefix == OutputFile) 1441 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1442 1443 StringRef MemProfileBasename("memprof.profraw"); 1444 if (!Opts.MemoryProfileOutput.empty()) { 1445 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1446 GenerateArg(Args, OPT_fmemory_profile, SA); 1447 } else { 1448 size_t ArgLength = 1449 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1450 GenerateArg(Args, OPT_fmemory_profile_EQ, 1451 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1452 } 1453 } 1454 1455 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1456 GenerateArg(Args, OPT_coverage_version_EQ, 1457 StringRef(Opts.CoverageVersion, 4), SA); 1458 1459 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1460 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1461 // won't be generated.) 1462 1463 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1464 std::string InstrBundle = 1465 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1466 if (!InstrBundle.empty()) 1467 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1468 } 1469 1470 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1471 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1472 else if (Opts.CFProtectionReturn) 1473 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1474 else if (Opts.CFProtectionBranch) 1475 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1476 1477 for (const auto &F : Opts.LinkBitcodeFiles) { 1478 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1479 F.PropagateAttrs && F.Internalize; 1480 GenerateArg(Args, 1481 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1482 F.Filename, SA); 1483 } 1484 1485 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1486 // That would make it easy to generate the option only **once** if it was 1487 // explicitly set to non-default value. 1488 if (Opts.ExplicitEmulatedTLS) { 1489 GenerateArg( 1490 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1491 } 1492 1493 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1494 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1495 1496 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1497 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1498 SA); 1499 1500 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1501 OptSpecifier Opt = 1502 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1503 GenerateArg(Args, Opt, SA); 1504 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1505 OptSpecifier Opt = 1506 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1507 GenerateArg(Args, Opt, SA); 1508 } 1509 1510 if (Opts.EnableAIXExtendedAltivecABI) 1511 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1512 1513 if (!Opts.OptRecordPasses.empty()) 1514 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1515 1516 if (!Opts.OptRecordFormat.empty()) 1517 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1518 1519 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1520 Opts.OptimizationRemark); 1521 1522 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1523 Opts.OptimizationRemarkMissed); 1524 1525 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1526 Opts.OptimizationRemarkAnalysis); 1527 1528 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1529 Opts.DiagnosticsHotnessThreshold 1530 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1531 : "auto", 1532 SA); 1533 1534 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1535 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1536 1537 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1538 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1539 1540 if (!Opts.EmitVersionIdentMetadata) 1541 GenerateArg(Args, OPT_Qn, SA); 1542 1543 switch (Opts.FiniteLoops) { 1544 case CodeGenOptions::FiniteLoopsKind::Language: 1545 break; 1546 case CodeGenOptions::FiniteLoopsKind::Always: 1547 GenerateArg(Args, OPT_ffinite_loops, SA); 1548 break; 1549 case CodeGenOptions::FiniteLoopsKind::Never: 1550 GenerateArg(Args, OPT_fno_finite_loops, SA); 1551 break; 1552 } 1553 } 1554 1555 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1556 InputKind IK, 1557 DiagnosticsEngine &Diags, 1558 const llvm::Triple &T, 1559 const std::string &OutputFile, 1560 const LangOptions &LangOptsRef) { 1561 unsigned NumErrorsBefore = Diags.getNumErrors(); 1562 1563 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1564 // TODO: This could be done in Driver 1565 unsigned MaxOptLevel = 3; 1566 if (OptimizationLevel > MaxOptLevel) { 1567 // If the optimization level is not supported, fall back on the default 1568 // optimization 1569 Diags.Report(diag::warn_drv_optimization_value) 1570 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1571 OptimizationLevel = MaxOptLevel; 1572 } 1573 Opts.OptimizationLevel = OptimizationLevel; 1574 1575 // The key paths of codegen options defined in Options.td start with 1576 // "CodeGenOpts.". Let's provide the expected variable name and type. 1577 CodeGenOptions &CodeGenOpts = Opts; 1578 // Some codegen options depend on language options. Let's provide the expected 1579 // variable name and type. 1580 const LangOptions *LangOpts = &LangOptsRef; 1581 1582 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1583 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1584 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1585 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1586 MERGER, EXTRACTOR, TABLE_INDEX) \ 1587 PARSE_OPTION_WITH_MARSHALLING( \ 1588 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1589 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1590 #include "clang/Driver/Options.inc" 1591 #undef CODEGEN_OPTION_WITH_MARSHALLING 1592 1593 // At O0 we want to fully disable inlining outside of cases marked with 1594 // 'alwaysinline' that are required for correctness. 1595 Opts.setInlining((Opts.OptimizationLevel == 0) 1596 ? CodeGenOptions::OnlyAlwaysInlining 1597 : CodeGenOptions::NormalInlining); 1598 // Explicit inlining flags can disable some or all inlining even at 1599 // optimization levels above zero. 1600 if (Arg *InlineArg = Args.getLastArg( 1601 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1602 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1603 if (Opts.OptimizationLevel > 0) { 1604 const Option &InlineOpt = InlineArg->getOption(); 1605 if (InlineOpt.matches(options::OPT_finline_functions)) 1606 Opts.setInlining(CodeGenOptions::NormalInlining); 1607 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1608 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1609 else 1610 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1611 } 1612 } 1613 1614 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1615 // -fdirect-access-external-data. 1616 Opts.DirectAccessExternalData = 1617 Args.hasArg(OPT_fdirect_access_external_data) || 1618 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1619 LangOpts->PICLevel == 0); 1620 1621 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1622 unsigned Val = 1623 llvm::StringSwitch<unsigned>(A->getValue()) 1624 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1625 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1626 .Case("constructor", codegenoptions::DebugInfoConstructor) 1627 .Case("limited", codegenoptions::LimitedDebugInfo) 1628 .Case("standalone", codegenoptions::FullDebugInfo) 1629 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1630 .Default(~0U); 1631 if (Val == ~0U) 1632 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1633 << A->getValue(); 1634 else 1635 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1636 } 1637 1638 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1639 // constructor homing, and vice versa for -fno-use-ctor-homing. 1640 if (const Arg *A = 1641 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1642 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1643 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1644 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1645 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1646 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1647 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1648 } 1649 1650 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1651 auto Split = StringRef(Arg).split('='); 1652 Opts.DebugPrefixMap.insert( 1653 {std::string(Split.first), std::string(Split.second)}); 1654 } 1655 1656 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1657 auto Split = StringRef(Arg).split('='); 1658 Opts.CoveragePrefixMap.insert( 1659 {std::string(Split.first), std::string(Split.second)}); 1660 } 1661 1662 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1663 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1664 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1665 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1666 1667 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1668 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1669 Opts.EmitCallSiteInfo = true; 1670 1671 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1672 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1673 << Opts.DIBugsReportFilePath; 1674 Opts.DIBugsReportFilePath = ""; 1675 } 1676 1677 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1678 Args.hasArg(OPT_new_struct_path_tbaa); 1679 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1680 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1681 if (Opts.SimplifyLibCalls) 1682 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1683 Opts.UnrollLoops = 1684 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1685 (Opts.OptimizationLevel > 1)); 1686 Opts.BinutilsVersion = 1687 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1688 1689 Opts.DebugNameTable = static_cast<unsigned>( 1690 Args.hasArg(OPT_ggnu_pubnames) 1691 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1692 : Args.hasArg(OPT_gpubnames) 1693 ? llvm::DICompileUnit::DebugNameTableKind::Default 1694 : llvm::DICompileUnit::DebugNameTableKind::None); 1695 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1696 StringRef Value = A->getValue(); 1697 if (Value != "simple" && Value != "mangled") 1698 Diags.Report(diag::err_drv_unsupported_option_argument) 1699 << A->getOption().getName() << A->getValue(); 1700 Opts.setDebugSimpleTemplateNames( 1701 StringRef(A->getValue()) == "simple" 1702 ? codegenoptions::DebugTemplateNamesKind::Simple 1703 : codegenoptions::DebugTemplateNamesKind::Mangled); 1704 } 1705 1706 if (!Opts.ProfileInstrumentUsePath.empty()) 1707 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1708 1709 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1710 Opts.TimePasses = true; 1711 1712 // -ftime-report= is only for new pass manager. 1713 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1714 if (Opts.LegacyPassManager) 1715 Diags.Report(diag::err_drv_argument_only_allowed_with) 1716 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1717 1718 StringRef Val = A->getValue(); 1719 if (Val == "per-pass") 1720 Opts.TimePassesPerRun = false; 1721 else if (Val == "per-pass-run") 1722 Opts.TimePassesPerRun = true; 1723 else 1724 Diags.Report(diag::err_drv_invalid_value) 1725 << A->getAsString(Args) << A->getValue(); 1726 } 1727 } 1728 1729 Opts.PrepareForLTO = false; 1730 Opts.PrepareForThinLTO = false; 1731 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1732 Opts.PrepareForLTO = true; 1733 StringRef S = A->getValue(); 1734 if (S == "thin") 1735 Opts.PrepareForThinLTO = true; 1736 else if (S != "full") 1737 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1738 } 1739 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1740 if (IK.getLanguage() != Language::LLVM_IR) 1741 Diags.Report(diag::err_drv_argument_only_allowed_with) 1742 << A->getAsString(Args) << "-x ir"; 1743 Opts.ThinLTOIndexFile = 1744 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1745 } 1746 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1747 Opts.SaveTempsFilePrefix = 1748 llvm::StringSwitch<std::string>(A->getValue()) 1749 .Case("obj", OutputFile) 1750 .Default(llvm::sys::path::filename(OutputFile).str()); 1751 1752 // The memory profile runtime appends the pid to make this name more unique. 1753 const char *MemProfileBasename = "memprof.profraw"; 1754 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1755 SmallString<128> Path( 1756 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1757 llvm::sys::path::append(Path, MemProfileBasename); 1758 Opts.MemoryProfileOutput = std::string(Path); 1759 } else if (Args.hasArg(OPT_fmemory_profile)) 1760 Opts.MemoryProfileOutput = MemProfileBasename; 1761 1762 memcpy(Opts.CoverageVersion, "408*", 4); 1763 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1764 if (Args.hasArg(OPT_coverage_version_EQ)) { 1765 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1766 if (CoverageVersion.size() != 4) { 1767 Diags.Report(diag::err_drv_invalid_value) 1768 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1769 << CoverageVersion; 1770 } else { 1771 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1772 } 1773 } 1774 } 1775 // FIXME: For backend options that are not yet recorded as function 1776 // attributes in the IR, keep track of them so we can embed them in a 1777 // separate data section and use them when building the bitcode. 1778 for (const auto &A : Args) { 1779 // Do not encode output and input. 1780 if (A->getOption().getID() == options::OPT_o || 1781 A->getOption().getID() == options::OPT_INPUT || 1782 A->getOption().getID() == options::OPT_x || 1783 A->getOption().getID() == options::OPT_fembed_bitcode || 1784 A->getOption().matches(options::OPT_W_Group)) 1785 continue; 1786 ArgStringList ASL; 1787 A->render(Args, ASL); 1788 for (const auto &arg : ASL) { 1789 StringRef ArgStr(arg); 1790 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1791 // using \00 to separate each commandline options. 1792 Opts.CmdArgs.push_back('\0'); 1793 } 1794 } 1795 1796 auto XRayInstrBundles = 1797 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1798 if (XRayInstrBundles.empty()) 1799 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1800 else 1801 for (const auto &A : XRayInstrBundles) 1802 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1803 Diags, Opts.XRayInstrumentationBundle); 1804 1805 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1806 StringRef Name = A->getValue(); 1807 if (Name == "full") { 1808 Opts.CFProtectionReturn = 1; 1809 Opts.CFProtectionBranch = 1; 1810 } else if (Name == "return") 1811 Opts.CFProtectionReturn = 1; 1812 else if (Name == "branch") 1813 Opts.CFProtectionBranch = 1; 1814 else if (Name != "none") 1815 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1816 } 1817 1818 for (auto *A : 1819 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1820 CodeGenOptions::BitcodeFileToLink F; 1821 F.Filename = A->getValue(); 1822 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1823 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1824 // When linking CUDA bitcode, propagate function attributes so that 1825 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1826 F.PropagateAttrs = true; 1827 F.Internalize = true; 1828 } 1829 Opts.LinkBitcodeFiles.push_back(F); 1830 } 1831 1832 if (Args.getLastArg(OPT_femulated_tls) || 1833 Args.getLastArg(OPT_fno_emulated_tls)) { 1834 Opts.ExplicitEmulatedTLS = true; 1835 } 1836 1837 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1838 if (T.isOSAIX()) { 1839 StringRef Name = A->getValue(); 1840 if (Name != "global-dynamic") 1841 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1842 } 1843 } 1844 1845 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1846 StringRef Val = A->getValue(); 1847 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1848 if (!Opts.FPDenormalMode.isValid()) 1849 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1850 } 1851 1852 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1853 StringRef Val = A->getValue(); 1854 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1855 if (!Opts.FP32DenormalMode.isValid()) 1856 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1857 } 1858 1859 // X86_32 has -fppc-struct-return and -freg-struct-return. 1860 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1861 if (Arg *A = 1862 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1863 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1864 // TODO: We might want to consider enabling these options on AIX in the 1865 // future. 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 if (O.matches(OPT_fpcc_struct_return) || 1872 O.matches(OPT_maix_struct_return)) { 1873 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1874 } else { 1875 assert(O.matches(OPT_freg_struct_return) || 1876 O.matches(OPT_msvr4_struct_return)); 1877 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1878 } 1879 } 1880 1881 if (Arg *A = 1882 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1883 if (!T.isOSAIX()) 1884 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1885 << A->getSpelling() << T.str(); 1886 1887 const Option &O = A->getOption(); 1888 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1889 } 1890 1891 bool NeedLocTracking = false; 1892 1893 if (!Opts.OptRecordFile.empty()) 1894 NeedLocTracking = true; 1895 1896 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1897 Opts.OptRecordPasses = A->getValue(); 1898 NeedLocTracking = true; 1899 } 1900 1901 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1902 Opts.OptRecordFormat = A->getValue(); 1903 NeedLocTracking = true; 1904 } 1905 1906 Opts.OptimizationRemark = 1907 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1908 1909 Opts.OptimizationRemarkMissed = 1910 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1911 1912 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1913 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1914 1915 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1916 Opts.OptimizationRemarkMissed.hasValidPattern() || 1917 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1918 1919 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1920 bool UsingProfile = UsingSampleProfile || 1921 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1922 1923 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1924 // An IR file will contain PGO as metadata 1925 IK.getLanguage() != Language::LLVM_IR) 1926 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1927 << "-fdiagnostics-show-hotness"; 1928 1929 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1930 if (auto *arg = 1931 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1932 auto ResultOrErr = 1933 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1934 1935 if (!ResultOrErr) { 1936 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1937 << "-fdiagnostics-hotness-threshold="; 1938 } else { 1939 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1940 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1941 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1942 !UsingProfile) 1943 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1944 << "-fdiagnostics-hotness-threshold="; 1945 } 1946 } 1947 1948 // If the user requested to use a sample profile for PGO, then the 1949 // backend will need to track source location information so the profile 1950 // can be incorporated into the IR. 1951 if (UsingSampleProfile) 1952 NeedLocTracking = true; 1953 1954 if (!Opts.StackUsageOutput.empty()) 1955 NeedLocTracking = true; 1956 1957 // If the user requested a flag that requires source locations available in 1958 // the backend, make sure that the backend tracks source location information. 1959 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1960 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1961 1962 // Parse -fsanitize-recover= arguments. 1963 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1964 parseSanitizerKinds("-fsanitize-recover=", 1965 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1966 Opts.SanitizeRecover); 1967 parseSanitizerKinds("-fsanitize-trap=", 1968 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1969 Opts.SanitizeTrap); 1970 1971 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1972 1973 if (Args.hasArg(options::OPT_ffinite_loops)) 1974 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1975 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1976 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1977 1978 Opts.EmitIEEENaNCompliantInsts = 1979 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1980 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1981 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1982 1983 return Diags.getNumErrors() == NumErrorsBefore; 1984 } 1985 1986 static void 1987 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1988 SmallVectorImpl<const char *> &Args, 1989 CompilerInvocation::StringAllocator SA) { 1990 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1991 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1992 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1993 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1994 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1995 MERGER, EXTRACTOR, TABLE_INDEX) \ 1996 GENERATE_OPTION_WITH_MARSHALLING( \ 1997 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1998 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1999 #include "clang/Driver/Options.inc" 2000 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2001 2002 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2003 GenerateArg(Args, OPT_show_includes, SA); 2004 2005 for (const auto &Dep : Opts.ExtraDeps) { 2006 switch (Dep.second) { 2007 case EDK_SanitizeIgnorelist: 2008 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2009 continue; 2010 case EDK_ModuleFile: 2011 // Module file arguments are generated from FrontendOptions and 2012 // HeaderSearchOptions. 2013 continue; 2014 case EDK_ProfileList: 2015 // Profile list arguments are generated from LanguageOptions via the 2016 // marshalling infrastructure. 2017 continue; 2018 case EDK_DepFileEntry: 2019 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2020 break; 2021 } 2022 } 2023 } 2024 2025 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2026 ArgList &Args, DiagnosticsEngine &Diags, 2027 frontend::ActionKind Action, 2028 bool ShowLineMarkers) { 2029 unsigned NumErrorsBefore = Diags.getNumErrors(); 2030 2031 DependencyOutputOptions &DependencyOutputOpts = Opts; 2032 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2033 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2034 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2035 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2036 MERGER, EXTRACTOR, TABLE_INDEX) \ 2037 PARSE_OPTION_WITH_MARSHALLING( \ 2038 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2039 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2040 #include "clang/Driver/Options.inc" 2041 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2042 2043 if (Args.hasArg(OPT_show_includes)) { 2044 // Writing both /showIncludes and preprocessor output to stdout 2045 // would produce interleaved output, so use stderr for /showIncludes. 2046 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2047 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2048 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2049 else 2050 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2051 } else { 2052 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2053 } 2054 2055 // Add sanitizer ignorelists as extra dependencies. 2056 // They won't be discovered by the regular preprocessor, so 2057 // we let make / ninja to know about this implicit dependency. 2058 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2059 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2060 StringRef Val = A->getValue(); 2061 if (Val.find('=') == StringRef::npos) 2062 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2063 } 2064 if (Opts.IncludeSystemHeaders) { 2065 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2066 StringRef Val = A->getValue(); 2067 if (Val.find('=') == StringRef::npos) 2068 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2069 } 2070 } 2071 } 2072 2073 // -fprofile-list= dependencies. 2074 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2075 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2076 2077 // Propagate the extra dependencies. 2078 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2079 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2080 2081 // Only the -fmodule-file=<file> form. 2082 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2083 StringRef Val = A->getValue(); 2084 if (Val.find('=') == StringRef::npos) 2085 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2086 } 2087 2088 return Diags.getNumErrors() == NumErrorsBefore; 2089 } 2090 2091 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2092 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2093 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2094 // Support both clang's -f[no-]color-diagnostics and gcc's 2095 // -f[no-]diagnostics-colors[=never|always|auto]. 2096 enum { 2097 Colors_On, 2098 Colors_Off, 2099 Colors_Auto 2100 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2101 for (auto *A : Args) { 2102 const Option &O = A->getOption(); 2103 if (O.matches(options::OPT_fcolor_diagnostics) || 2104 O.matches(options::OPT_fdiagnostics_color)) { 2105 ShowColors = Colors_On; 2106 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2107 O.matches(options::OPT_fno_diagnostics_color)) { 2108 ShowColors = Colors_Off; 2109 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2110 StringRef Value(A->getValue()); 2111 if (Value == "always") 2112 ShowColors = Colors_On; 2113 else if (Value == "never") 2114 ShowColors = Colors_Off; 2115 else if (Value == "auto") 2116 ShowColors = Colors_Auto; 2117 } 2118 } 2119 return ShowColors == Colors_On || 2120 (ShowColors == Colors_Auto && 2121 llvm::sys::Process::StandardErrHasColors()); 2122 } 2123 2124 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2125 DiagnosticsEngine &Diags) { 2126 bool Success = true; 2127 for (const auto &Prefix : VerifyPrefixes) { 2128 // Every prefix must start with a letter and contain only alphanumeric 2129 // characters, hyphens, and underscores. 2130 auto BadChar = llvm::find_if(Prefix, [](char C) { 2131 return !isAlphanumeric(C) && C != '-' && C != '_'; 2132 }); 2133 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2134 Success = false; 2135 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2136 Diags.Report(diag::note_drv_verify_prefix_spelling); 2137 } 2138 } 2139 return Success; 2140 } 2141 2142 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2143 SmallVectorImpl<const char *> &Args, 2144 CompilerInvocation::StringAllocator SA) { 2145 const FileSystemOptions &FileSystemOpts = Opts; 2146 2147 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2148 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2149 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2150 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2151 MERGER, EXTRACTOR, TABLE_INDEX) \ 2152 GENERATE_OPTION_WITH_MARSHALLING( \ 2153 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2154 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2155 #include "clang/Driver/Options.inc" 2156 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2157 } 2158 2159 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2160 DiagnosticsEngine &Diags) { 2161 unsigned NumErrorsBefore = Diags.getNumErrors(); 2162 2163 FileSystemOptions &FileSystemOpts = Opts; 2164 2165 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2166 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2167 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2168 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2169 MERGER, EXTRACTOR, TABLE_INDEX) \ 2170 PARSE_OPTION_WITH_MARSHALLING( \ 2171 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2172 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2173 #include "clang/Driver/Options.inc" 2174 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2175 2176 return Diags.getNumErrors() == NumErrorsBefore; 2177 } 2178 2179 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2180 SmallVectorImpl<const char *> &Args, 2181 CompilerInvocation::StringAllocator SA) { 2182 const MigratorOptions &MigratorOpts = Opts; 2183 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2184 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2185 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2186 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2187 MERGER, EXTRACTOR, TABLE_INDEX) \ 2188 GENERATE_OPTION_WITH_MARSHALLING( \ 2189 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2190 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2191 #include "clang/Driver/Options.inc" 2192 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2193 } 2194 2195 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2196 DiagnosticsEngine &Diags) { 2197 unsigned NumErrorsBefore = Diags.getNumErrors(); 2198 2199 MigratorOptions &MigratorOpts = Opts; 2200 2201 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2202 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2203 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2204 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2205 MERGER, EXTRACTOR, TABLE_INDEX) \ 2206 PARSE_OPTION_WITH_MARSHALLING( \ 2207 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2208 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2209 #include "clang/Driver/Options.inc" 2210 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2211 2212 return Diags.getNumErrors() == NumErrorsBefore; 2213 } 2214 2215 void CompilerInvocation::GenerateDiagnosticArgs( 2216 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2217 StringAllocator SA, bool DefaultDiagColor) { 2218 const DiagnosticOptions *DiagnosticOpts = &Opts; 2219 #define DIAG_OPTION_WITH_MARSHALLING( \ 2220 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2221 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2222 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2223 MERGER, EXTRACTOR, TABLE_INDEX) \ 2224 GENERATE_OPTION_WITH_MARSHALLING( \ 2225 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2226 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2227 #include "clang/Driver/Options.inc" 2228 #undef DIAG_OPTION_WITH_MARSHALLING 2229 2230 if (!Opts.DiagnosticSerializationFile.empty()) 2231 GenerateArg(Args, OPT_diagnostic_serialized_file, 2232 Opts.DiagnosticSerializationFile, SA); 2233 2234 if (Opts.ShowColors) 2235 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2236 2237 if (Opts.VerifyDiagnostics && 2238 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2239 GenerateArg(Args, OPT_verify, SA); 2240 2241 for (const auto &Prefix : Opts.VerifyPrefixes) 2242 if (Prefix != "expected") 2243 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2244 2245 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2246 if (VIU == DiagnosticLevelMask::None) { 2247 // This is the default, don't generate anything. 2248 } else if (VIU == DiagnosticLevelMask::All) { 2249 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2250 } else { 2251 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2252 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2253 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2254 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2255 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2256 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2257 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2258 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2259 } 2260 2261 for (const auto &Warning : Opts.Warnings) { 2262 // This option is automatically generated from UndefPrefixes. 2263 if (Warning == "undef-prefix") 2264 continue; 2265 Args.push_back(SA(StringRef("-W") + Warning)); 2266 } 2267 2268 for (const auto &Remark : Opts.Remarks) { 2269 // These arguments are generated from OptimizationRemark fields of 2270 // CodeGenOptions. 2271 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2272 "pass-analysis", "no-pass-analysis", 2273 "pass-missed", "no-pass-missed"}; 2274 if (llvm::is_contained(IgnoredRemarks, Remark)) 2275 continue; 2276 2277 Args.push_back(SA(StringRef("-R") + Remark)); 2278 } 2279 } 2280 2281 std::unique_ptr<DiagnosticOptions> 2282 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2283 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2284 unsigned MissingArgIndex, MissingArgCount; 2285 InputArgList Args = getDriverOptTable().ParseArgs( 2286 Argv.slice(1), MissingArgIndex, MissingArgCount); 2287 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2288 // Any errors that would be diagnosed here will also be diagnosed later, 2289 // when the DiagnosticsEngine actually exists. 2290 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2291 return DiagOpts; 2292 } 2293 2294 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2295 DiagnosticsEngine *Diags, 2296 bool DefaultDiagColor) { 2297 Optional<DiagnosticsEngine> IgnoringDiags; 2298 if (!Diags) { 2299 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2300 new IgnoringDiagConsumer()); 2301 Diags = &*IgnoringDiags; 2302 } 2303 2304 unsigned NumErrorsBefore = Diags->getNumErrors(); 2305 2306 // The key paths of diagnostic options defined in Options.td start with 2307 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2308 DiagnosticOptions *DiagnosticOpts = &Opts; 2309 2310 #define DIAG_OPTION_WITH_MARSHALLING( \ 2311 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2312 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2313 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2314 MERGER, EXTRACTOR, TABLE_INDEX) \ 2315 PARSE_OPTION_WITH_MARSHALLING( \ 2316 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2317 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2318 #include "clang/Driver/Options.inc" 2319 #undef DIAG_OPTION_WITH_MARSHALLING 2320 2321 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2322 2323 if (Arg *A = 2324 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2325 Opts.DiagnosticSerializationFile = A->getValue(); 2326 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2327 2328 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2329 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2330 if (Args.hasArg(OPT_verify)) 2331 Opts.VerifyPrefixes.push_back("expected"); 2332 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2333 // then sort it to prepare for fast lookup using std::binary_search. 2334 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2335 Opts.VerifyDiagnostics = false; 2336 else 2337 llvm::sort(Opts.VerifyPrefixes); 2338 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2339 parseDiagnosticLevelMask( 2340 "-verify-ignore-unexpected=", 2341 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2342 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2343 DiagMask = DiagnosticLevelMask::All; 2344 Opts.setVerifyIgnoreUnexpected(DiagMask); 2345 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2346 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2347 Diags->Report(diag::warn_ignoring_ftabstop_value) 2348 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2349 } 2350 2351 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2352 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2353 2354 return Diags->getNumErrors() == NumErrorsBefore; 2355 } 2356 2357 /// Parse the argument to the -ftest-module-file-extension 2358 /// command-line argument. 2359 /// 2360 /// \returns true on error, false on success. 2361 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2362 std::string &BlockName, 2363 unsigned &MajorVersion, 2364 unsigned &MinorVersion, 2365 bool &Hashed, 2366 std::string &UserInfo) { 2367 SmallVector<StringRef, 5> Args; 2368 Arg.split(Args, ':', 5); 2369 if (Args.size() < 5) 2370 return true; 2371 2372 BlockName = std::string(Args[0]); 2373 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2374 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2375 if (Args[3].getAsInteger(2, Hashed)) return true; 2376 if (Args.size() > 4) 2377 UserInfo = std::string(Args[4]); 2378 return false; 2379 } 2380 2381 /// Return a table that associates command line option specifiers with the 2382 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2383 /// intentionally missing, as this case is handled separately from other 2384 /// frontend options. 2385 static const auto &getFrontendActionTable() { 2386 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2387 {frontend::ASTDeclList, OPT_ast_list}, 2388 2389 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2390 {frontend::ASTDump, OPT_ast_dump_all}, 2391 {frontend::ASTDump, OPT_ast_dump_EQ}, 2392 {frontend::ASTDump, OPT_ast_dump}, 2393 {frontend::ASTDump, OPT_ast_dump_lookups}, 2394 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2395 2396 {frontend::ASTPrint, OPT_ast_print}, 2397 {frontend::ASTView, OPT_ast_view}, 2398 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2399 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2400 {frontend::DumpTokens, OPT_dump_tokens}, 2401 {frontend::EmitAssembly, OPT_S}, 2402 {frontend::EmitBC, OPT_emit_llvm_bc}, 2403 {frontend::EmitHTML, OPT_emit_html}, 2404 {frontend::EmitLLVM, OPT_emit_llvm}, 2405 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2406 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2407 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2408 {frontend::EmitObj, OPT_emit_obj}, 2409 2410 {frontend::FixIt, OPT_fixit_EQ}, 2411 {frontend::FixIt, OPT_fixit}, 2412 2413 {frontend::GenerateModule, OPT_emit_module}, 2414 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2415 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2416 {frontend::GeneratePCH, OPT_emit_pch}, 2417 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2418 {frontend::InitOnly, OPT_init_only}, 2419 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2420 {frontend::ModuleFileInfo, OPT_module_file_info}, 2421 {frontend::VerifyPCH, OPT_verify_pch}, 2422 {frontend::PrintPreamble, OPT_print_preamble}, 2423 {frontend::PrintPreprocessedInput, OPT_E}, 2424 {frontend::TemplightDump, OPT_templight_dump}, 2425 {frontend::RewriteMacros, OPT_rewrite_macros}, 2426 {frontend::RewriteObjC, OPT_rewrite_objc}, 2427 {frontend::RewriteTest, OPT_rewrite_test}, 2428 {frontend::RunAnalysis, OPT_analyze}, 2429 {frontend::MigrateSource, OPT_migrate}, 2430 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2431 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2432 OPT_print_dependency_directives_minimized_source}, 2433 }; 2434 2435 return Table; 2436 } 2437 2438 /// Maps command line option to frontend action. 2439 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2440 for (const auto &ActionOpt : getFrontendActionTable()) 2441 if (ActionOpt.second == Opt.getID()) 2442 return ActionOpt.first; 2443 2444 return None; 2445 } 2446 2447 /// Maps frontend action to command line option. 2448 static Optional<OptSpecifier> 2449 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2450 for (const auto &ActionOpt : getFrontendActionTable()) 2451 if (ActionOpt.first == ProgramAction) 2452 return OptSpecifier(ActionOpt.second); 2453 2454 return None; 2455 } 2456 2457 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2458 SmallVectorImpl<const char *> &Args, 2459 CompilerInvocation::StringAllocator SA, 2460 bool IsHeader) { 2461 const FrontendOptions &FrontendOpts = Opts; 2462 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2463 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2464 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2465 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2466 MERGER, EXTRACTOR, TABLE_INDEX) \ 2467 GENERATE_OPTION_WITH_MARSHALLING( \ 2468 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2469 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2470 #include "clang/Driver/Options.inc" 2471 #undef FRONTEND_OPTION_WITH_MARSHALLING 2472 2473 Optional<OptSpecifier> ProgramActionOpt = 2474 getProgramActionOpt(Opts.ProgramAction); 2475 2476 // Generating a simple flag covers most frontend actions. 2477 std::function<void()> GenerateProgramAction = [&]() { 2478 GenerateArg(Args, *ProgramActionOpt, SA); 2479 }; 2480 2481 if (!ProgramActionOpt) { 2482 // PluginAction is the only program action handled separately. 2483 assert(Opts.ProgramAction == frontend::PluginAction && 2484 "Frontend action without option."); 2485 GenerateProgramAction = [&]() { 2486 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2487 }; 2488 } 2489 2490 // FIXME: Simplify the complex 'AST dump' command line. 2491 if (Opts.ProgramAction == frontend::ASTDump) { 2492 GenerateProgramAction = [&]() { 2493 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2494 // marshalling infrastructure. 2495 2496 if (Opts.ASTDumpFormat != ADOF_Default) { 2497 StringRef Format; 2498 switch (Opts.ASTDumpFormat) { 2499 case ADOF_Default: 2500 llvm_unreachable("Default AST dump format."); 2501 case ADOF_JSON: 2502 Format = "json"; 2503 break; 2504 } 2505 2506 if (Opts.ASTDumpAll) 2507 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2508 if (Opts.ASTDumpDecls) 2509 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2510 } else { 2511 if (Opts.ASTDumpAll) 2512 GenerateArg(Args, OPT_ast_dump_all, SA); 2513 if (Opts.ASTDumpDecls) 2514 GenerateArg(Args, OPT_ast_dump, SA); 2515 } 2516 }; 2517 } 2518 2519 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2520 GenerateProgramAction = [&]() { 2521 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2522 }; 2523 } 2524 2525 GenerateProgramAction(); 2526 2527 for (const auto &PluginArgs : Opts.PluginArgs) { 2528 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2529 const char *Spelling = 2530 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2531 for (const auto &PluginArg : PluginArgs.second) 2532 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2533 } 2534 2535 for (const auto &Ext : Opts.ModuleFileExtensions) 2536 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2537 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2538 2539 if (!Opts.CodeCompletionAt.FileName.empty()) 2540 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2541 SA); 2542 2543 for (const auto &Plugin : Opts.Plugins) 2544 GenerateArg(Args, OPT_load, Plugin, SA); 2545 2546 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2547 2548 for (const auto &ModuleFile : Opts.ModuleFiles) 2549 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2550 2551 if (Opts.AuxTargetCPU.hasValue()) 2552 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2553 2554 if (Opts.AuxTargetFeatures.hasValue()) 2555 for (const auto &Feature : *Opts.AuxTargetFeatures) 2556 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2557 2558 { 2559 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2560 StringRef ModuleMap = 2561 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2562 StringRef Header = IsHeader ? "-header" : ""; 2563 2564 StringRef Lang; 2565 switch (Opts.DashX.getLanguage()) { 2566 case Language::C: 2567 Lang = "c"; 2568 break; 2569 case Language::OpenCL: 2570 Lang = "cl"; 2571 break; 2572 case Language::OpenCLCXX: 2573 Lang = "clcpp"; 2574 break; 2575 case Language::CUDA: 2576 Lang = "cuda"; 2577 break; 2578 case Language::HIP: 2579 Lang = "hip"; 2580 break; 2581 case Language::CXX: 2582 Lang = "c++"; 2583 break; 2584 case Language::ObjC: 2585 Lang = "objective-c"; 2586 break; 2587 case Language::ObjCXX: 2588 Lang = "objective-c++"; 2589 break; 2590 case Language::RenderScript: 2591 Lang = "renderscript"; 2592 break; 2593 case Language::Asm: 2594 Lang = "assembler-with-cpp"; 2595 break; 2596 case Language::Unknown: 2597 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2598 "Generating -x argument for unknown language (not precompiled)."); 2599 Lang = "ast"; 2600 break; 2601 case Language::LLVM_IR: 2602 Lang = "ir"; 2603 break; 2604 } 2605 2606 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2607 } 2608 2609 // OPT_INPUT has a unique class, generate it directly. 2610 for (const auto &Input : Opts.Inputs) 2611 Args.push_back(SA(Input.getFile())); 2612 } 2613 2614 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2615 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2616 unsigned NumErrorsBefore = Diags.getNumErrors(); 2617 2618 FrontendOptions &FrontendOpts = Opts; 2619 2620 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2621 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2622 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2623 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2624 MERGER, EXTRACTOR, TABLE_INDEX) \ 2625 PARSE_OPTION_WITH_MARSHALLING( \ 2626 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2627 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2628 #include "clang/Driver/Options.inc" 2629 #undef FRONTEND_OPTION_WITH_MARSHALLING 2630 2631 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2632 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2633 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2634 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2635 assert(ProgramAction && "Option specifier not in Action_Group."); 2636 2637 if (ProgramAction == frontend::ASTDump && 2638 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2639 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2640 .CaseLower("default", ADOF_Default) 2641 .CaseLower("json", ADOF_JSON) 2642 .Default(std::numeric_limits<unsigned>::max()); 2643 2644 if (Val != std::numeric_limits<unsigned>::max()) 2645 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2646 else { 2647 Diags.Report(diag::err_drv_invalid_value) 2648 << A->getAsString(Args) << A->getValue(); 2649 Opts.ASTDumpFormat = ADOF_Default; 2650 } 2651 } 2652 2653 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2654 Opts.FixItSuffix = A->getValue(); 2655 2656 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2657 StringRef ArgStr = 2658 Args.hasArg(OPT_interface_stub_version_EQ) 2659 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2660 : "ifs-v1"; 2661 if (ArgStr == "experimental-yaml-elf-v1" || 2662 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2663 ArgStr == "experimental-tapi-elf-v1") { 2664 std::string ErrorMessage = 2665 "Invalid interface stub format: " + ArgStr.str() + 2666 " is deprecated."; 2667 Diags.Report(diag::err_drv_invalid_value) 2668 << "Must specify a valid interface stub format type, ie: " 2669 "-interface-stub-version=ifs-v1" 2670 << ErrorMessage; 2671 ProgramAction = frontend::ParseSyntaxOnly; 2672 } else if (!ArgStr.startswith("ifs-")) { 2673 std::string ErrorMessage = 2674 "Invalid interface stub format: " + ArgStr.str() + "."; 2675 Diags.Report(diag::err_drv_invalid_value) 2676 << "Must specify a valid interface stub format type, ie: " 2677 "-interface-stub-version=ifs-v1" 2678 << ErrorMessage; 2679 ProgramAction = frontend::ParseSyntaxOnly; 2680 } 2681 } 2682 2683 Opts.ProgramAction = *ProgramAction; 2684 } 2685 2686 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2687 Opts.Plugins.emplace_back(A->getValue(0)); 2688 Opts.ProgramAction = frontend::PluginAction; 2689 Opts.ActionName = A->getValue(); 2690 } 2691 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2692 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2693 2694 for (const std::string &Arg : 2695 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2696 std::string BlockName; 2697 unsigned MajorVersion; 2698 unsigned MinorVersion; 2699 bool Hashed; 2700 std::string UserInfo; 2701 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2702 MinorVersion, Hashed, UserInfo)) { 2703 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2704 2705 continue; 2706 } 2707 2708 // Add the testing module file extension. 2709 Opts.ModuleFileExtensions.push_back( 2710 std::make_shared<TestModuleFileExtension>( 2711 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2712 } 2713 2714 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2715 Opts.CodeCompletionAt = 2716 ParsedSourceLocation::FromString(A->getValue()); 2717 if (Opts.CodeCompletionAt.FileName.empty()) 2718 Diags.Report(diag::err_drv_invalid_value) 2719 << A->getAsString(Args) << A->getValue(); 2720 } 2721 2722 Opts.Plugins = Args.getAllArgValues(OPT_load); 2723 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2724 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2725 // Only the -fmodule-file=<file> form. 2726 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2727 StringRef Val = A->getValue(); 2728 if (Val.find('=') == StringRef::npos) 2729 Opts.ModuleFiles.push_back(std::string(Val)); 2730 } 2731 2732 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2733 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2734 << "-emit-module"; 2735 2736 if (Args.hasArg(OPT_aux_target_cpu)) 2737 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2738 if (Args.hasArg(OPT_aux_target_feature)) 2739 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2740 2741 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2742 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2743 Diags.Report(diag::err_drv_argument_not_allowed_with) 2744 << "ARC migration" << "ObjC migration"; 2745 } 2746 2747 InputKind DashX(Language::Unknown); 2748 if (const Arg *A = Args.getLastArg(OPT_x)) { 2749 StringRef XValue = A->getValue(); 2750 2751 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2752 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2753 bool Preprocessed = XValue.consume_back("-cpp-output"); 2754 bool ModuleMap = XValue.consume_back("-module-map"); 2755 IsHeaderFile = !Preprocessed && !ModuleMap && 2756 XValue != "precompiled-header" && 2757 XValue.consume_back("-header"); 2758 2759 // Principal languages. 2760 DashX = llvm::StringSwitch<InputKind>(XValue) 2761 .Case("c", Language::C) 2762 .Case("cl", Language::OpenCL) 2763 .Case("clcpp", Language::OpenCLCXX) 2764 .Case("cuda", Language::CUDA) 2765 .Case("hip", Language::HIP) 2766 .Case("c++", Language::CXX) 2767 .Case("objective-c", Language::ObjC) 2768 .Case("objective-c++", Language::ObjCXX) 2769 .Case("renderscript", Language::RenderScript) 2770 .Default(Language::Unknown); 2771 2772 // "objc[++]-cpp-output" is an acceptable synonym for 2773 // "objective-c[++]-cpp-output". 2774 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2775 DashX = llvm::StringSwitch<InputKind>(XValue) 2776 .Case("objc", Language::ObjC) 2777 .Case("objc++", Language::ObjCXX) 2778 .Default(Language::Unknown); 2779 2780 // Some special cases cannot be combined with suffixes. 2781 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2782 DashX = llvm::StringSwitch<InputKind>(XValue) 2783 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2784 .Case("assembler-with-cpp", Language::Asm) 2785 .Cases("ast", "pcm", "precompiled-header", 2786 InputKind(Language::Unknown, InputKind::Precompiled)) 2787 .Case("ir", Language::LLVM_IR) 2788 .Default(Language::Unknown); 2789 2790 if (DashX.isUnknown()) 2791 Diags.Report(diag::err_drv_invalid_value) 2792 << A->getAsString(Args) << A->getValue(); 2793 2794 if (Preprocessed) 2795 DashX = DashX.getPreprocessed(); 2796 if (ModuleMap) 2797 DashX = DashX.withFormat(InputKind::ModuleMap); 2798 } 2799 2800 // '-' is the default input if none is given. 2801 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2802 Opts.Inputs.clear(); 2803 if (Inputs.empty()) 2804 Inputs.push_back("-"); 2805 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2806 InputKind IK = DashX; 2807 if (IK.isUnknown()) { 2808 IK = FrontendOptions::getInputKindForExtension( 2809 StringRef(Inputs[i]).rsplit('.').second); 2810 // FIXME: Warn on this? 2811 if (IK.isUnknown()) 2812 IK = Language::C; 2813 // FIXME: Remove this hack. 2814 if (i == 0) 2815 DashX = IK; 2816 } 2817 2818 bool IsSystem = false; 2819 2820 // The -emit-module action implicitly takes a module map. 2821 if (Opts.ProgramAction == frontend::GenerateModule && 2822 IK.getFormat() == InputKind::Source) { 2823 IK = IK.withFormat(InputKind::ModuleMap); 2824 IsSystem = Opts.IsSystemModule; 2825 } 2826 2827 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2828 } 2829 2830 Opts.DashX = DashX; 2831 2832 return Diags.getNumErrors() == NumErrorsBefore; 2833 } 2834 2835 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2836 void *MainAddr) { 2837 std::string ClangExecutable = 2838 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2839 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2840 } 2841 2842 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2843 SmallVectorImpl<const char *> &Args, 2844 CompilerInvocation::StringAllocator SA) { 2845 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2846 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2847 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2848 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2849 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2850 MERGER, EXTRACTOR, TABLE_INDEX) \ 2851 GENERATE_OPTION_WITH_MARSHALLING( \ 2852 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2853 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2854 #include "clang/Driver/Options.inc" 2855 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2856 2857 if (Opts.UseLibcxx) 2858 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2859 2860 if (!Opts.ModuleCachePath.empty()) 2861 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2862 2863 for (const auto &File : Opts.PrebuiltModuleFiles) 2864 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2865 2866 for (const auto &Path : Opts.PrebuiltModulePaths) 2867 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2868 2869 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2870 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2871 2872 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2873 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2874 llvm::Optional<bool> IsFramework, 2875 llvm::Optional<bool> IgnoreSysRoot) { 2876 return llvm::find(Groups, Entry.Group) != Groups.end() && 2877 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2878 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2879 }; 2880 2881 auto It = Opts.UserEntries.begin(); 2882 auto End = Opts.UserEntries.end(); 2883 2884 // Add -I..., -F..., and -index-header-map options in order. 2885 for (; It < End && 2886 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2887 ++It) { 2888 OptSpecifier Opt = [It, Matches]() { 2889 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2890 return OPT_F; 2891 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2892 return OPT_I; 2893 if (Matches(*It, frontend::Angled, true, true)) 2894 return OPT_F; 2895 if (Matches(*It, frontend::Angled, false, true)) 2896 return OPT_I; 2897 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2898 }(); 2899 2900 if (It->Group == frontend::IndexHeaderMap) 2901 GenerateArg(Args, OPT_index_header_map, SA); 2902 GenerateArg(Args, Opt, It->Path, SA); 2903 }; 2904 2905 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2906 // have already been generated as "-I[xx]yy". If that's the case, their 2907 // position on command line was such that this has no semantic impact on 2908 // include paths. 2909 for (; It < End && 2910 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2911 ++It) { 2912 OptSpecifier Opt = 2913 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2914 GenerateArg(Args, Opt, It->Path, SA); 2915 } 2916 2917 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2918 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2919 // command line was such that this has no semantic impact on include paths. 2920 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2921 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2922 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2923 GenerateArg(Args, OPT_iquote, It->Path, SA); 2924 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2925 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2926 It->Path, SA); 2927 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2928 GenerateArg(Args, OPT_iframework, It->Path, SA); 2929 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2930 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2931 2932 // Add the paths for the various language specific isystem flags. 2933 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2934 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2935 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2936 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2937 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2938 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2939 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2940 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2941 2942 // Add the internal paths from a driver that detects standard include paths. 2943 // Note: Some paths that came from "-internal-isystem" arguments may have 2944 // already been generated as "-isystem". If that's the case, their position on 2945 // command line was such that this has no semantic impact on include paths. 2946 for (; It < End && 2947 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2948 ++It) { 2949 OptSpecifier Opt = It->Group == frontend::System 2950 ? OPT_internal_isystem 2951 : OPT_internal_externc_isystem; 2952 GenerateArg(Args, Opt, It->Path, SA); 2953 } 2954 2955 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2956 2957 // Add the path prefixes which are implicitly treated as being system headers. 2958 for (const auto &P : Opts.SystemHeaderPrefixes) { 2959 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2960 : OPT_no_system_header_prefix; 2961 GenerateArg(Args, Opt, P.Prefix, SA); 2962 } 2963 2964 for (const std::string &F : Opts.VFSOverlayFiles) 2965 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2966 } 2967 2968 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2969 DiagnosticsEngine &Diags, 2970 const std::string &WorkingDir) { 2971 unsigned NumErrorsBefore = Diags.getNumErrors(); 2972 2973 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2974 2975 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2976 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2977 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2978 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2979 MERGER, EXTRACTOR, TABLE_INDEX) \ 2980 PARSE_OPTION_WITH_MARSHALLING( \ 2981 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2982 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2983 #include "clang/Driver/Options.inc" 2984 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2985 2986 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2987 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2988 2989 // Canonicalize -fmodules-cache-path before storing it. 2990 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2991 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2992 if (WorkingDir.empty()) 2993 llvm::sys::fs::make_absolute(P); 2994 else 2995 llvm::sys::fs::make_absolute(WorkingDir, P); 2996 } 2997 llvm::sys::path::remove_dots(P); 2998 Opts.ModuleCachePath = std::string(P.str()); 2999 3000 // Only the -fmodule-file=<name>=<file> form. 3001 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3002 StringRef Val = A->getValue(); 3003 if (Val.find('=') != StringRef::npos){ 3004 auto Split = Val.split('='); 3005 Opts.PrebuiltModuleFiles.insert( 3006 {std::string(Split.first), std::string(Split.second)}); 3007 } 3008 } 3009 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3010 Opts.AddPrebuiltModulePath(A->getValue()); 3011 3012 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3013 StringRef MacroDef = A->getValue(); 3014 Opts.ModulesIgnoreMacros.insert( 3015 llvm::CachedHashString(MacroDef.split('=').first)); 3016 } 3017 3018 // Add -I..., -F..., and -index-header-map options in order. 3019 bool IsIndexHeaderMap = false; 3020 bool IsSysrootSpecified = 3021 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3022 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3023 if (A->getOption().matches(OPT_index_header_map)) { 3024 // -index-header-map applies to the next -I or -F. 3025 IsIndexHeaderMap = true; 3026 continue; 3027 } 3028 3029 frontend::IncludeDirGroup Group = 3030 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3031 3032 bool IsFramework = A->getOption().matches(OPT_F); 3033 std::string Path = A->getValue(); 3034 3035 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3036 SmallString<32> Buffer; 3037 llvm::sys::path::append(Buffer, Opts.Sysroot, 3038 llvm::StringRef(A->getValue()).substr(1)); 3039 Path = std::string(Buffer.str()); 3040 } 3041 3042 Opts.AddPath(Path, Group, IsFramework, 3043 /*IgnoreSysroot*/ true); 3044 IsIndexHeaderMap = false; 3045 } 3046 3047 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3048 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3049 for (const auto *A : 3050 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3051 if (A->getOption().matches(OPT_iprefix)) 3052 Prefix = A->getValue(); 3053 else if (A->getOption().matches(OPT_iwithprefix)) 3054 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3055 else 3056 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3057 } 3058 3059 for (const auto *A : Args.filtered(OPT_idirafter)) 3060 Opts.AddPath(A->getValue(), frontend::After, false, true); 3061 for (const auto *A : Args.filtered(OPT_iquote)) 3062 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3063 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3064 Opts.AddPath(A->getValue(), frontend::System, false, 3065 !A->getOption().matches(OPT_iwithsysroot)); 3066 for (const auto *A : Args.filtered(OPT_iframework)) 3067 Opts.AddPath(A->getValue(), frontend::System, true, true); 3068 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3069 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3070 /*IgnoreSysRoot=*/false); 3071 3072 // Add the paths for the various language specific isystem flags. 3073 for (const auto *A : Args.filtered(OPT_c_isystem)) 3074 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3075 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3076 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3077 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3078 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3079 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3080 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3081 3082 // Add the internal paths from a driver that detects standard include paths. 3083 for (const auto *A : 3084 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3085 frontend::IncludeDirGroup Group = frontend::System; 3086 if (A->getOption().matches(OPT_internal_externc_isystem)) 3087 Group = frontend::ExternCSystem; 3088 Opts.AddPath(A->getValue(), Group, false, true); 3089 } 3090 3091 // Add the path prefixes which are implicitly treated as being system headers. 3092 for (const auto *A : 3093 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3094 Opts.AddSystemHeaderPrefix( 3095 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3096 3097 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3098 Opts.AddVFSOverlayFile(A->getValue()); 3099 3100 return Diags.getNumErrors() == NumErrorsBefore; 3101 } 3102 3103 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3104 const llvm::Triple &T, 3105 std::vector<std::string> &Includes, 3106 LangStandard::Kind LangStd) { 3107 // Set some properties which depend solely on the input kind; it would be nice 3108 // to move these to the language standard, and have the driver resolve the 3109 // input kind + language standard. 3110 // 3111 // FIXME: Perhaps a better model would be for a single source file to have 3112 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3113 // simultaneously active? 3114 if (IK.getLanguage() == Language::Asm) { 3115 Opts.AsmPreprocessor = 1; 3116 } else if (IK.isObjectiveC()) { 3117 Opts.ObjC = 1; 3118 } 3119 3120 if (LangStd == LangStandard::lang_unspecified) { 3121 // Based on the base language, pick one. 3122 switch (IK.getLanguage()) { 3123 case Language::Unknown: 3124 case Language::LLVM_IR: 3125 llvm_unreachable("Invalid input kind!"); 3126 case Language::OpenCL: 3127 LangStd = LangStandard::lang_opencl12; 3128 break; 3129 case Language::OpenCLCXX: 3130 LangStd = LangStandard::lang_openclcpp10; 3131 break; 3132 case Language::CUDA: 3133 LangStd = LangStandard::lang_cuda; 3134 break; 3135 case Language::Asm: 3136 case Language::C: 3137 #if defined(CLANG_DEFAULT_STD_C) 3138 LangStd = CLANG_DEFAULT_STD_C; 3139 #else 3140 // The PS4 uses C99 as the default C standard. 3141 if (T.isPS4()) 3142 LangStd = LangStandard::lang_gnu99; 3143 else 3144 LangStd = LangStandard::lang_gnu17; 3145 #endif 3146 break; 3147 case Language::ObjC: 3148 #if defined(CLANG_DEFAULT_STD_C) 3149 LangStd = CLANG_DEFAULT_STD_C; 3150 #else 3151 LangStd = LangStandard::lang_gnu11; 3152 #endif 3153 break; 3154 case Language::CXX: 3155 case Language::ObjCXX: 3156 #if defined(CLANG_DEFAULT_STD_CXX) 3157 LangStd = CLANG_DEFAULT_STD_CXX; 3158 #else 3159 LangStd = LangStandard::lang_gnucxx14; 3160 #endif 3161 break; 3162 case Language::RenderScript: 3163 LangStd = LangStandard::lang_c99; 3164 break; 3165 case Language::HIP: 3166 LangStd = LangStandard::lang_hip; 3167 break; 3168 } 3169 } 3170 3171 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3172 Opts.LangStd = LangStd; 3173 Opts.LineComment = Std.hasLineComments(); 3174 Opts.C99 = Std.isC99(); 3175 Opts.C11 = Std.isC11(); 3176 Opts.C17 = Std.isC17(); 3177 Opts.C2x = Std.isC2x(); 3178 Opts.CPlusPlus = Std.isCPlusPlus(); 3179 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3180 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3181 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3182 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3183 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3184 Opts.GNUMode = Std.isGNUMode(); 3185 Opts.GNUCVersion = 0; 3186 Opts.HexFloats = Std.hasHexFloats(); 3187 Opts.ImplicitInt = Std.hasImplicitInt(); 3188 3189 // Set OpenCL Version. 3190 Opts.OpenCL = Std.isOpenCL(); 3191 if (LangStd == LangStandard::lang_opencl10) 3192 Opts.OpenCLVersion = 100; 3193 else if (LangStd == LangStandard::lang_opencl11) 3194 Opts.OpenCLVersion = 110; 3195 else if (LangStd == LangStandard::lang_opencl12) 3196 Opts.OpenCLVersion = 120; 3197 else if (LangStd == LangStandard::lang_opencl20) 3198 Opts.OpenCLVersion = 200; 3199 else if (LangStd == LangStandard::lang_opencl30) 3200 Opts.OpenCLVersion = 300; 3201 else if (LangStd == LangStandard::lang_openclcpp10) 3202 Opts.OpenCLCPlusPlusVersion = 100; 3203 else if (LangStd == LangStandard::lang_openclcpp2021) 3204 Opts.OpenCLCPlusPlusVersion = 202100; 3205 3206 // OpenCL has some additional defaults. 3207 if (Opts.OpenCL) { 3208 Opts.AltiVec = 0; 3209 Opts.ZVector = 0; 3210 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3211 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3212 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3213 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3214 3215 // Include default header file for OpenCL. 3216 if (Opts.IncludeDefaultHeader) { 3217 if (Opts.DeclareOpenCLBuiltins) { 3218 // Only include base header file for builtin types and constants. 3219 Includes.push_back("opencl-c-base.h"); 3220 } else { 3221 Includes.push_back("opencl-c.h"); 3222 } 3223 } 3224 } 3225 3226 Opts.HIP = IK.getLanguage() == Language::HIP; 3227 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3228 if (Opts.HIP) { 3229 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3230 // fuses multiplication/addition instructions without contract flag from 3231 // device library functions in LLVM bitcode, which causes accuracy loss in 3232 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3233 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3234 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3235 // FP contract option is used to allow fuse across statements in frontend 3236 // whereas respecting contract flag in backend. 3237 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3238 } else if (Opts.CUDA) { 3239 // Allow fuse across statements disregarding pragmas. 3240 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3241 } 3242 3243 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3244 3245 // OpenCL and C++ both have bool, true, false keywords. 3246 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3247 3248 // OpenCL has half keyword 3249 Opts.Half = Opts.OpenCL; 3250 } 3251 3252 /// Check if input file kind and language standard are compatible. 3253 static bool IsInputCompatibleWithStandard(InputKind IK, 3254 const LangStandard &S) { 3255 switch (IK.getLanguage()) { 3256 case Language::Unknown: 3257 case Language::LLVM_IR: 3258 llvm_unreachable("should not parse language flags for this input"); 3259 3260 case Language::C: 3261 case Language::ObjC: 3262 case Language::RenderScript: 3263 return S.getLanguage() == Language::C; 3264 3265 case Language::OpenCL: 3266 return S.getLanguage() == Language::OpenCL || 3267 S.getLanguage() == Language::OpenCLCXX; 3268 3269 case Language::OpenCLCXX: 3270 return S.getLanguage() == Language::OpenCLCXX; 3271 3272 case Language::CXX: 3273 case Language::ObjCXX: 3274 return S.getLanguage() == Language::CXX; 3275 3276 case Language::CUDA: 3277 // FIXME: What -std= values should be permitted for CUDA compilations? 3278 return S.getLanguage() == Language::CUDA || 3279 S.getLanguage() == Language::CXX; 3280 3281 case Language::HIP: 3282 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3283 3284 case Language::Asm: 3285 // Accept (and ignore) all -std= values. 3286 // FIXME: The -std= value is not ignored; it affects the tokenization 3287 // and preprocessing rules if we're preprocessing this asm input. 3288 return true; 3289 } 3290 3291 llvm_unreachable("unexpected input language"); 3292 } 3293 3294 /// Get language name for given input kind. 3295 static const StringRef GetInputKindName(InputKind IK) { 3296 switch (IK.getLanguage()) { 3297 case Language::C: 3298 return "C"; 3299 case Language::ObjC: 3300 return "Objective-C"; 3301 case Language::CXX: 3302 return "C++"; 3303 case Language::ObjCXX: 3304 return "Objective-C++"; 3305 case Language::OpenCL: 3306 return "OpenCL"; 3307 case Language::OpenCLCXX: 3308 return "C++ for OpenCL"; 3309 case Language::CUDA: 3310 return "CUDA"; 3311 case Language::RenderScript: 3312 return "RenderScript"; 3313 case Language::HIP: 3314 return "HIP"; 3315 3316 case Language::Asm: 3317 return "Asm"; 3318 case Language::LLVM_IR: 3319 return "LLVM IR"; 3320 3321 case Language::Unknown: 3322 break; 3323 } 3324 llvm_unreachable("unknown input language"); 3325 } 3326 3327 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3328 SmallVectorImpl<const char *> &Args, 3329 StringAllocator SA, 3330 const llvm::Triple &T, InputKind IK) { 3331 if (IK.getFormat() == InputKind::Precompiled || 3332 IK.getLanguage() == Language::LLVM_IR) { 3333 if (Opts.ObjCAutoRefCount) 3334 GenerateArg(Args, OPT_fobjc_arc, SA); 3335 if (Opts.PICLevel != 0) 3336 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3337 if (Opts.PIE) 3338 GenerateArg(Args, OPT_pic_is_pie, SA); 3339 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3340 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3341 3342 return; 3343 } 3344 3345 OptSpecifier StdOpt; 3346 switch (Opts.LangStd) { 3347 case LangStandard::lang_opencl10: 3348 case LangStandard::lang_opencl11: 3349 case LangStandard::lang_opencl12: 3350 case LangStandard::lang_opencl20: 3351 case LangStandard::lang_opencl30: 3352 case LangStandard::lang_openclcpp10: 3353 case LangStandard::lang_openclcpp2021: 3354 StdOpt = OPT_cl_std_EQ; 3355 break; 3356 default: 3357 StdOpt = OPT_std_EQ; 3358 break; 3359 } 3360 3361 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3362 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3363 3364 if (Opts.IncludeDefaultHeader) 3365 GenerateArg(Args, OPT_finclude_default_header, SA); 3366 if (Opts.DeclareOpenCLBuiltins) 3367 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3368 3369 const LangOptions *LangOpts = &Opts; 3370 3371 #define LANG_OPTION_WITH_MARSHALLING( \ 3372 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3373 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3374 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3375 MERGER, EXTRACTOR, TABLE_INDEX) \ 3376 GENERATE_OPTION_WITH_MARSHALLING( \ 3377 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3378 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3379 #include "clang/Driver/Options.inc" 3380 #undef LANG_OPTION_WITH_MARSHALLING 3381 3382 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3383 3384 if (Opts.ObjC) { 3385 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3386 3387 if (Opts.GC == LangOptions::GCOnly) 3388 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3389 else if (Opts.GC == LangOptions::HybridGC) 3390 GenerateArg(Args, OPT_fobjc_gc, SA); 3391 else if (Opts.ObjCAutoRefCount == 1) 3392 GenerateArg(Args, OPT_fobjc_arc, SA); 3393 3394 if (Opts.ObjCWeakRuntime) 3395 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3396 3397 if (Opts.ObjCWeak) 3398 GenerateArg(Args, OPT_fobjc_weak, SA); 3399 3400 if (Opts.ObjCSubscriptingLegacyRuntime) 3401 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3402 } 3403 3404 if (Opts.GNUCVersion != 0) { 3405 unsigned Major = Opts.GNUCVersion / 100 / 100; 3406 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3407 unsigned Patch = Opts.GNUCVersion % 100; 3408 GenerateArg(Args, OPT_fgnuc_version_EQ, 3409 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3410 } 3411 3412 if (Opts.IgnoreXCOFFVisibility) 3413 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3414 3415 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3416 GenerateArg(Args, OPT_ftrapv, SA); 3417 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3418 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3419 GenerateArg(Args, OPT_fwrapv, SA); 3420 } 3421 3422 if (Opts.MSCompatibilityVersion != 0) { 3423 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3424 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3425 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3426 GenerateArg(Args, OPT_fms_compatibility_version, 3427 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3428 } 3429 3430 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3431 if (!Opts.Trigraphs) 3432 GenerateArg(Args, OPT_fno_trigraphs, SA); 3433 } else { 3434 if (Opts.Trigraphs) 3435 GenerateArg(Args, OPT_ftrigraphs, SA); 3436 } 3437 3438 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3439 GenerateArg(Args, OPT_fblocks, SA); 3440 3441 if (Opts.ConvergentFunctions && 3442 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3443 GenerateArg(Args, OPT_fconvergent_functions, SA); 3444 3445 if (Opts.NoBuiltin && !Opts.Freestanding) 3446 GenerateArg(Args, OPT_fno_builtin, SA); 3447 3448 if (!Opts.NoBuiltin) 3449 for (const auto &Func : Opts.NoBuiltinFuncs) 3450 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3451 3452 if (Opts.LongDoubleSize == 128) 3453 GenerateArg(Args, OPT_mlong_double_128, SA); 3454 else if (Opts.LongDoubleSize == 64) 3455 GenerateArg(Args, OPT_mlong_double_64, SA); 3456 3457 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3458 3459 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3460 // '-fopenmp-targets='. 3461 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3462 GenerateArg(Args, OPT_fopenmp, SA); 3463 3464 if (Opts.OpenMP != 50) 3465 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3466 3467 if (!Opts.OpenMPUseTLS) 3468 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3469 3470 if (Opts.OpenMPIsDevice) 3471 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3472 3473 if (Opts.OpenMPIRBuilder) 3474 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3475 } 3476 3477 if (Opts.OpenMPSimd) { 3478 GenerateArg(Args, OPT_fopenmp_simd, SA); 3479 3480 if (Opts.OpenMP != 50) 3481 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3482 } 3483 3484 if (Opts.OpenMPTargetNewRuntime) 3485 GenerateArg(Args, OPT_fopenmp_target_new_runtime, SA); 3486 3487 if (Opts.OpenMPTargetDebug != 0) 3488 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3489 Twine(Opts.OpenMPTargetDebug), SA); 3490 3491 if (Opts.OpenMPCUDANumSMs != 0) 3492 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3493 Twine(Opts.OpenMPCUDANumSMs), SA); 3494 3495 if (Opts.OpenMPCUDABlocksPerSM != 0) 3496 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3497 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3498 3499 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3500 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3501 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3502 3503 if (!Opts.OMPTargetTriples.empty()) { 3504 std::string Targets; 3505 llvm::raw_string_ostream OS(Targets); 3506 llvm::interleave( 3507 Opts.OMPTargetTriples, OS, 3508 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3509 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3510 } 3511 3512 if (!Opts.OMPHostIRFile.empty()) 3513 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3514 3515 if (Opts.OpenMPCUDAMode) 3516 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3517 3518 if (Opts.OpenMPCUDAForceFullRuntime) 3519 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3520 3521 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3522 // generated from CodeGenOptions. 3523 3524 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3525 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3526 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3527 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3528 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3529 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3530 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3531 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3532 3533 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3534 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3535 3536 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3537 for (const std::string &F : Opts.NoSanitizeFiles) 3538 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3539 3540 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3541 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3542 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3543 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3544 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3545 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3546 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3547 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3548 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3549 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3550 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3551 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3552 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3553 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3554 3555 if (Opts.getSignReturnAddressScope() == 3556 LangOptions::SignReturnAddressScopeKind::All) 3557 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3558 else if (Opts.getSignReturnAddressScope() == 3559 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3560 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3561 3562 if (Opts.getSignReturnAddressKey() == 3563 LangOptions::SignReturnAddressKeyKind::BKey) 3564 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3565 3566 if (Opts.CXXABI) 3567 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3568 SA); 3569 3570 if (Opts.RelativeCXXABIVTables) 3571 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3572 else 3573 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3574 3575 for (const auto &MP : Opts.MacroPrefixMap) 3576 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3577 } 3578 3579 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3580 InputKind IK, const llvm::Triple &T, 3581 std::vector<std::string> &Includes, 3582 DiagnosticsEngine &Diags) { 3583 unsigned NumErrorsBefore = Diags.getNumErrors(); 3584 3585 if (IK.getFormat() == InputKind::Precompiled || 3586 IK.getLanguage() == Language::LLVM_IR) { 3587 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3588 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3589 // what the input type is. 3590 if (Args.hasArg(OPT_fobjc_arc)) 3591 Opts.ObjCAutoRefCount = 1; 3592 // PICLevel and PIELevel are needed during code generation and this should 3593 // be set regardless of the input type. 3594 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3595 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3596 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3597 Diags, Opts.Sanitize); 3598 3599 return Diags.getNumErrors() == NumErrorsBefore; 3600 } 3601 3602 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3603 // FIXME: Should we really be parsing this for an Language::Asm input? 3604 3605 // FIXME: Cleanup per-file based stuff. 3606 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3607 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3608 LangStd = LangStandard::getLangKind(A->getValue()); 3609 if (LangStd == LangStandard::lang_unspecified) { 3610 Diags.Report(diag::err_drv_invalid_value) 3611 << A->getAsString(Args) << A->getValue(); 3612 // Report supported standards with short description. 3613 for (unsigned KindValue = 0; 3614 KindValue != LangStandard::lang_unspecified; 3615 ++KindValue) { 3616 const LangStandard &Std = LangStandard::getLangStandardForKind( 3617 static_cast<LangStandard::Kind>(KindValue)); 3618 if (IsInputCompatibleWithStandard(IK, Std)) { 3619 auto Diag = Diags.Report(diag::note_drv_use_standard); 3620 Diag << Std.getName() << Std.getDescription(); 3621 unsigned NumAliases = 0; 3622 #define LANGSTANDARD(id, name, lang, desc, features) 3623 #define LANGSTANDARD_ALIAS(id, alias) \ 3624 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3625 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3626 #include "clang/Basic/LangStandards.def" 3627 Diag << NumAliases; 3628 #define LANGSTANDARD(id, name, lang, desc, features) 3629 #define LANGSTANDARD_ALIAS(id, alias) \ 3630 if (KindValue == LangStandard::lang_##id) Diag << alias; 3631 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3632 #include "clang/Basic/LangStandards.def" 3633 } 3634 } 3635 } else { 3636 // Valid standard, check to make sure language and standard are 3637 // compatible. 3638 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3639 if (!IsInputCompatibleWithStandard(IK, Std)) { 3640 Diags.Report(diag::err_drv_argument_not_allowed_with) 3641 << A->getAsString(Args) << GetInputKindName(IK); 3642 } 3643 } 3644 } 3645 3646 // -cl-std only applies for OpenCL language standards. 3647 // Override the -std option in this case. 3648 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3649 LangStandard::Kind OpenCLLangStd 3650 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3651 .Cases("cl", "CL", LangStandard::lang_opencl10) 3652 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3653 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3654 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3655 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3656 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3657 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3658 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3659 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3660 .Default(LangStandard::lang_unspecified); 3661 3662 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3663 Diags.Report(diag::err_drv_invalid_value) 3664 << A->getAsString(Args) << A->getValue(); 3665 } 3666 else 3667 LangStd = OpenCLLangStd; 3668 } 3669 3670 // These need to be parsed now. They are used to set OpenCL defaults. 3671 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3672 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3673 3674 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3675 3676 // The key paths of codegen options defined in Options.td start with 3677 // "LangOpts->". Let's provide the expected variable name and type. 3678 LangOptions *LangOpts = &Opts; 3679 3680 #define LANG_OPTION_WITH_MARSHALLING( \ 3681 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3682 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3683 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3684 MERGER, EXTRACTOR, TABLE_INDEX) \ 3685 PARSE_OPTION_WITH_MARSHALLING( \ 3686 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3687 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3688 #include "clang/Driver/Options.inc" 3689 #undef LANG_OPTION_WITH_MARSHALLING 3690 3691 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3692 StringRef Name = A->getValue(); 3693 if (Name == "full" || Name == "branch") { 3694 Opts.CFProtectionBranch = 1; 3695 } 3696 } 3697 3698 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3699 !Args.hasArg(OPT_sycl_std_EQ)) { 3700 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3701 // provide -sycl-std=, we want to default it to whatever the default SYCL 3702 // version is. I could not find a way to express this with the options 3703 // tablegen because we still want this value to be SYCL_None when the user 3704 // is not in device or host mode. 3705 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3706 } 3707 3708 if (Opts.ObjC) { 3709 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3710 StringRef value = arg->getValue(); 3711 if (Opts.ObjCRuntime.tryParse(value)) 3712 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3713 } 3714 3715 if (Args.hasArg(OPT_fobjc_gc_only)) 3716 Opts.setGC(LangOptions::GCOnly); 3717 else if (Args.hasArg(OPT_fobjc_gc)) 3718 Opts.setGC(LangOptions::HybridGC); 3719 else if (Args.hasArg(OPT_fobjc_arc)) { 3720 Opts.ObjCAutoRefCount = 1; 3721 if (!Opts.ObjCRuntime.allowsARC()) 3722 Diags.Report(diag::err_arc_unsupported_on_runtime); 3723 } 3724 3725 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3726 // whether the feature is actually enabled. This is predominantly 3727 // determined by -fobjc-runtime, but we allow it to be overridden 3728 // from the command line for testing purposes. 3729 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3730 Opts.ObjCWeakRuntime = 1; 3731 else 3732 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3733 3734 // ObjCWeak determines whether __weak is actually enabled. 3735 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3736 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3737 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3738 assert(!Opts.ObjCWeak); 3739 } else if (Opts.getGC() != LangOptions::NonGC) { 3740 Diags.Report(diag::err_objc_weak_with_gc); 3741 } else if (!Opts.ObjCWeakRuntime) { 3742 Diags.Report(diag::err_objc_weak_unsupported); 3743 } else { 3744 Opts.ObjCWeak = 1; 3745 } 3746 } else if (Opts.ObjCAutoRefCount) { 3747 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3748 } 3749 3750 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3751 Opts.ObjCSubscriptingLegacyRuntime = 3752 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3753 } 3754 3755 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3756 // Check that the version has 1 to 3 components and the minor and patch 3757 // versions fit in two decimal digits. 3758 VersionTuple GNUCVer; 3759 bool Invalid = GNUCVer.tryParse(A->getValue()); 3760 unsigned Major = GNUCVer.getMajor(); 3761 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3762 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3763 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3764 Diags.Report(diag::err_drv_invalid_value) 3765 << A->getAsString(Args) << A->getValue(); 3766 } 3767 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3768 } 3769 3770 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3771 // no -fvisibility=* option. 3772 // This is the reason why '-fvisibility' needs to be always generated: 3773 // its absence implies '-mignore-xcoff-visibility'. 3774 // 3775 // Suppose the original cc1 command line does contain '-fvisibility default': 3776 // '-mignore-xcoff-visibility' should not be implied. 3777 // * If '-fvisibility' is not generated (as most options with default values 3778 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3779 // the command line semantics. 3780 // * If '-fvisibility' is generated regardless of its presence and value, 3781 // '-mignore-xcoff-visibility' won't be implied and the command line 3782 // semantics are kept intact. 3783 // 3784 // When the original cc1 command line does **not** contain '-fvisibility', 3785 // '-mignore-xcoff-visibility' is implied. The generated command line will 3786 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3787 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3788 // produce the same arguments. 3789 3790 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3791 !Args.hasArg(OPT_fvisibility))) 3792 Opts.IgnoreXCOFFVisibility = 1; 3793 3794 if (Args.hasArg(OPT_ftrapv)) { 3795 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3796 // Set the handler, if one is specified. 3797 Opts.OverflowHandler = 3798 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3799 } 3800 else if (Args.hasArg(OPT_fwrapv)) 3801 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3802 3803 Opts.MSCompatibilityVersion = 0; 3804 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3805 VersionTuple VT; 3806 if (VT.tryParse(A->getValue())) 3807 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3808 << A->getValue(); 3809 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3810 VT.getMinor().getValueOr(0) * 100000 + 3811 VT.getSubminor().getValueOr(0); 3812 } 3813 3814 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3815 // is specified, or -std is set to a conforming mode. 3816 // Trigraphs are disabled by default in c++1z onwards. 3817 // For z/OS, trigraphs are enabled by default (without regard to the above). 3818 Opts.Trigraphs = 3819 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3820 Opts.Trigraphs = 3821 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3822 3823 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3824 && Opts.OpenCLVersion == 200); 3825 3826 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3827 Opts.SYCLIsDevice || 3828 Args.hasArg(OPT_fconvergent_functions); 3829 3830 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3831 if (!Opts.NoBuiltin) 3832 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3833 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3834 ? 128 3835 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3836 if (Opts.FastRelaxedMath) 3837 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3838 llvm::sort(Opts.ModuleFeatures); 3839 3840 // -mrtd option 3841 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3842 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3843 Diags.Report(diag::err_drv_argument_not_allowed_with) 3844 << A->getSpelling() << "-fdefault-calling-conv"; 3845 else { 3846 if (T.getArch() != llvm::Triple::x86) 3847 Diags.Report(diag::err_drv_argument_not_allowed_with) 3848 << A->getSpelling() << T.getTriple(); 3849 else 3850 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3851 } 3852 } 3853 3854 // Check if -fopenmp is specified and set default version to 5.0. 3855 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3856 // Check if -fopenmp-simd is specified. 3857 bool IsSimdSpecified = 3858 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3859 /*Default=*/false); 3860 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3861 Opts.OpenMPUseTLS = 3862 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3863 Opts.OpenMPIsDevice = 3864 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3865 Opts.OpenMPIRBuilder = 3866 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3867 bool IsTargetSpecified = 3868 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3869 Opts.OpenMPTargetNewRuntime = 3870 Opts.OpenMPIsDevice && 3871 Args.hasArg(options::OPT_fopenmp_target_new_runtime); 3872 3873 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3874 3875 if (Opts.OpenMP || Opts.OpenMPSimd) { 3876 if (int Version = getLastArgIntValue( 3877 Args, OPT_fopenmp_version_EQ, 3878 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3879 Opts.OpenMP = Version; 3880 // Provide diagnostic when a given target is not expected to be an OpenMP 3881 // device or host. 3882 if (!Opts.OpenMPIsDevice) { 3883 switch (T.getArch()) { 3884 default: 3885 break; 3886 // Add unsupported host targets here: 3887 case llvm::Triple::nvptx: 3888 case llvm::Triple::nvptx64: 3889 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3890 break; 3891 } 3892 } 3893 } 3894 3895 // Set the flag to prevent the implementation from emitting device exception 3896 // handling code for those requiring so. 3897 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3898 Opts.OpenCLCPlusPlus) { 3899 3900 Opts.Exceptions = 0; 3901 Opts.CXXExceptions = 0; 3902 } 3903 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3904 Opts.OpenMPCUDANumSMs = 3905 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3906 Opts.OpenMPCUDANumSMs, Diags); 3907 Opts.OpenMPCUDABlocksPerSM = 3908 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3909 Opts.OpenMPCUDABlocksPerSM, Diags); 3910 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3911 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3912 Opts.OpenMPCUDAReductionBufNum, Diags); 3913 } 3914 3915 // Set the value of the debugging flag used in the new offloading device RTL. 3916 // Set either by a specific value or to a default if not specified. 3917 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3918 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3919 if (Opts.OpenMPTargetNewRuntime) { 3920 Opts.OpenMPTargetDebug = getLastArgIntValue( 3921 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3922 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3923 Opts.OpenMPTargetDebug = 1; 3924 } else { 3925 Diags.Report(diag::err_drv_debug_no_new_runtime); 3926 } 3927 } 3928 3929 // Get the OpenMP target triples if any. 3930 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3931 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3932 auto getArchPtrSize = [](const llvm::Triple &T) { 3933 if (T.isArch16Bit()) 3934 return Arch16Bit; 3935 if (T.isArch32Bit()) 3936 return Arch32Bit; 3937 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3938 return Arch64Bit; 3939 }; 3940 3941 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3942 llvm::Triple TT(A->getValue(i)); 3943 3944 if (TT.getArch() == llvm::Triple::UnknownArch || 3945 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3946 TT.getArch() == llvm::Triple::nvptx || 3947 TT.getArch() == llvm::Triple::nvptx64 || 3948 TT.getArch() == llvm::Triple::amdgcn || 3949 TT.getArch() == llvm::Triple::x86 || 3950 TT.getArch() == llvm::Triple::x86_64)) 3951 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3952 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3953 Diags.Report(diag::err_drv_incompatible_omp_arch) 3954 << A->getValue(i) << T.str(); 3955 else 3956 Opts.OMPTargetTriples.push_back(TT); 3957 } 3958 } 3959 3960 // Get OpenMP host file path if any and report if a non existent file is 3961 // found 3962 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3963 Opts.OMPHostIRFile = A->getValue(); 3964 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3965 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3966 << Opts.OMPHostIRFile; 3967 } 3968 3969 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3970 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3971 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3972 3973 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3974 Opts.OpenMPCUDAForceFullRuntime = 3975 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3976 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3977 3978 // FIXME: Eliminate this dependency. 3979 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3980 OptSize = getOptimizationLevelSize(Args); 3981 Opts.Optimize = Opt != 0; 3982 Opts.OptimizeSize = OptSize != 0; 3983 3984 // This is the __NO_INLINE__ define, which just depends on things like the 3985 // optimization level and -fno-inline, not actually whether the backend has 3986 // inlining enabled. 3987 Opts.NoInlineDefine = !Opts.Optimize; 3988 if (Arg *InlineArg = Args.getLastArg( 3989 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3990 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3991 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3992 Opts.NoInlineDefine = true; 3993 3994 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3995 StringRef Val = A->getValue(); 3996 if (Val == "fast") 3997 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3998 else if (Val == "on") 3999 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4000 else if (Val == "off") 4001 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4002 else if (Val == "fast-honor-pragmas") 4003 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4004 else 4005 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4006 } 4007 4008 // Parse -fsanitize= arguments. 4009 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4010 Diags, Opts.Sanitize); 4011 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4012 std::vector<std::string> systemIgnorelists = 4013 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4014 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4015 systemIgnorelists.begin(), 4016 systemIgnorelists.end()); 4017 4018 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4019 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4020 4021 StringRef Ver = A->getValue(); 4022 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4023 unsigned Major, Minor = 0; 4024 4025 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4026 // y or y.0 (4 <= y <= current version). 4027 if (!VerParts.first.startswith("0") && 4028 !VerParts.first.getAsInteger(10, Major) && 4029 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4030 (Major == 3 ? VerParts.second.size() == 1 && 4031 !VerParts.second.getAsInteger(10, Minor) 4032 : VerParts.first.size() == Ver.size() || 4033 VerParts.second == "0")) { 4034 // Got a valid version number. 4035 if (Major == 3 && Minor <= 8) 4036 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4037 else if (Major <= 4) 4038 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4039 else if (Major <= 6) 4040 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4041 else if (Major <= 7) 4042 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4043 else if (Major <= 9) 4044 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4045 else if (Major <= 11) 4046 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4047 else if (Major <= 12) 4048 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4049 } else if (Ver != "latest") { 4050 Diags.Report(diag::err_drv_invalid_value) 4051 << A->getAsString(Args) << A->getValue(); 4052 } 4053 } 4054 4055 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4056 StringRef SignScope = A->getValue(); 4057 4058 if (SignScope.equals_insensitive("none")) 4059 Opts.setSignReturnAddressScope( 4060 LangOptions::SignReturnAddressScopeKind::None); 4061 else if (SignScope.equals_insensitive("all")) 4062 Opts.setSignReturnAddressScope( 4063 LangOptions::SignReturnAddressScopeKind::All); 4064 else if (SignScope.equals_insensitive("non-leaf")) 4065 Opts.setSignReturnAddressScope( 4066 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4067 else 4068 Diags.Report(diag::err_drv_invalid_value) 4069 << A->getAsString(Args) << SignScope; 4070 4071 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4072 StringRef SignKey = A->getValue(); 4073 if (!SignScope.empty() && !SignKey.empty()) { 4074 if (SignKey.equals_insensitive("a_key")) 4075 Opts.setSignReturnAddressKey( 4076 LangOptions::SignReturnAddressKeyKind::AKey); 4077 else if (SignKey.equals_insensitive("b_key")) 4078 Opts.setSignReturnAddressKey( 4079 LangOptions::SignReturnAddressKeyKind::BKey); 4080 else 4081 Diags.Report(diag::err_drv_invalid_value) 4082 << A->getAsString(Args) << SignKey; 4083 } 4084 } 4085 } 4086 4087 // The value can be empty, which indicates the system default should be used. 4088 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4089 if (!CXXABI.empty()) { 4090 if (!TargetCXXABI::isABI(CXXABI)) { 4091 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4092 } else { 4093 auto Kind = TargetCXXABI::getKind(CXXABI); 4094 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4095 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4096 else 4097 Opts.CXXABI = Kind; 4098 } 4099 } 4100 4101 Opts.RelativeCXXABIVTables = 4102 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4103 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4104 TargetCXXABI::usesRelativeVTables(T)); 4105 4106 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4107 auto Split = StringRef(A).split('='); 4108 Opts.MacroPrefixMap.insert( 4109 {std::string(Split.first), std::string(Split.second)}); 4110 } 4111 4112 return Diags.getNumErrors() == NumErrorsBefore; 4113 } 4114 4115 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4116 switch (Action) { 4117 case frontend::ASTDeclList: 4118 case frontend::ASTDump: 4119 case frontend::ASTPrint: 4120 case frontend::ASTView: 4121 case frontend::EmitAssembly: 4122 case frontend::EmitBC: 4123 case frontend::EmitHTML: 4124 case frontend::EmitLLVM: 4125 case frontend::EmitLLVMOnly: 4126 case frontend::EmitCodeGenOnly: 4127 case frontend::EmitObj: 4128 case frontend::FixIt: 4129 case frontend::GenerateModule: 4130 case frontend::GenerateModuleInterface: 4131 case frontend::GenerateHeaderModule: 4132 case frontend::GeneratePCH: 4133 case frontend::GenerateInterfaceStubs: 4134 case frontend::ParseSyntaxOnly: 4135 case frontend::ModuleFileInfo: 4136 case frontend::VerifyPCH: 4137 case frontend::PluginAction: 4138 case frontend::RewriteObjC: 4139 case frontend::RewriteTest: 4140 case frontend::RunAnalysis: 4141 case frontend::TemplightDump: 4142 case frontend::MigrateSource: 4143 return false; 4144 4145 case frontend::DumpCompilerOptions: 4146 case frontend::DumpRawTokens: 4147 case frontend::DumpTokens: 4148 case frontend::InitOnly: 4149 case frontend::PrintPreamble: 4150 case frontend::PrintPreprocessedInput: 4151 case frontend::RewriteMacros: 4152 case frontend::RunPreprocessorOnly: 4153 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4154 return true; 4155 } 4156 llvm_unreachable("invalid frontend action"); 4157 } 4158 4159 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4160 SmallVectorImpl<const char *> &Args, 4161 CompilerInvocation::StringAllocator SA, 4162 const LangOptions &LangOpts, 4163 const FrontendOptions &FrontendOpts, 4164 const CodeGenOptions &CodeGenOpts) { 4165 PreprocessorOptions *PreprocessorOpts = &Opts; 4166 4167 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4168 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4169 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4170 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4171 MERGER, EXTRACTOR, TABLE_INDEX) \ 4172 GENERATE_OPTION_WITH_MARSHALLING( \ 4173 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4174 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4175 #include "clang/Driver/Options.inc" 4176 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4177 4178 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4179 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4180 4181 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4182 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4183 4184 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4185 GenerateArg(Args, OPT_preamble_bytes_EQ, 4186 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4187 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4188 SA); 4189 4190 for (const auto &M : Opts.Macros) { 4191 // Don't generate __CET__ macro definitions. They are implied by the 4192 // -fcf-protection option that is generated elsewhere. 4193 if (M.first == "__CET__=1" && !M.second && 4194 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4195 continue; 4196 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4197 !CodeGenOpts.CFProtectionBranch) 4198 continue; 4199 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4200 CodeGenOpts.CFProtectionBranch) 4201 continue; 4202 4203 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4204 } 4205 4206 for (const auto &I : Opts.Includes) { 4207 // Don't generate OpenCL includes. They are implied by other flags that are 4208 // generated elsewhere. 4209 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4210 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4211 I == "opencl-c.h")) 4212 continue; 4213 4214 GenerateArg(Args, OPT_include, I, SA); 4215 } 4216 4217 for (const auto &CI : Opts.ChainedIncludes) 4218 GenerateArg(Args, OPT_chain_include, CI, SA); 4219 4220 for (const auto &RF : Opts.RemappedFiles) 4221 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4222 4223 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4224 // generated elsewhere. 4225 } 4226 4227 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4228 DiagnosticsEngine &Diags, 4229 frontend::ActionKind Action, 4230 const FrontendOptions &FrontendOpts) { 4231 unsigned NumErrorsBefore = Diags.getNumErrors(); 4232 4233 PreprocessorOptions *PreprocessorOpts = &Opts; 4234 4235 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4236 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4237 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4238 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4239 MERGER, EXTRACTOR, TABLE_INDEX) \ 4240 PARSE_OPTION_WITH_MARSHALLING( \ 4241 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4242 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4243 #include "clang/Driver/Options.inc" 4244 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4245 4246 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4247 Args.hasArg(OPT_pch_through_hdrstop_use); 4248 4249 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4250 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4251 4252 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4253 StringRef Value(A->getValue()); 4254 size_t Comma = Value.find(','); 4255 unsigned Bytes = 0; 4256 unsigned EndOfLine = 0; 4257 4258 if (Comma == StringRef::npos || 4259 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4260 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4261 Diags.Report(diag::err_drv_preamble_format); 4262 else { 4263 Opts.PrecompiledPreambleBytes.first = Bytes; 4264 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4265 } 4266 } 4267 4268 // Add the __CET__ macro if a CFProtection option is set. 4269 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4270 StringRef Name = A->getValue(); 4271 if (Name == "branch") 4272 Opts.addMacroDef("__CET__=1"); 4273 else if (Name == "return") 4274 Opts.addMacroDef("__CET__=2"); 4275 else if (Name == "full") 4276 Opts.addMacroDef("__CET__=3"); 4277 } 4278 4279 // Add macros from the command line. 4280 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4281 if (A->getOption().matches(OPT_D)) 4282 Opts.addMacroDef(A->getValue()); 4283 else 4284 Opts.addMacroUndef(A->getValue()); 4285 } 4286 4287 // Add the ordered list of -includes. 4288 for (const auto *A : Args.filtered(OPT_include)) 4289 Opts.Includes.emplace_back(A->getValue()); 4290 4291 for (const auto *A : Args.filtered(OPT_chain_include)) 4292 Opts.ChainedIncludes.emplace_back(A->getValue()); 4293 4294 for (const auto *A : Args.filtered(OPT_remap_file)) { 4295 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4296 4297 if (Split.second.empty()) { 4298 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4299 continue; 4300 } 4301 4302 Opts.addRemappedFile(Split.first, Split.second); 4303 } 4304 4305 // Always avoid lexing editor placeholders when we're just running the 4306 // preprocessor as we never want to emit the 4307 // "editor placeholder in source file" error in PP only mode. 4308 if (isStrictlyPreprocessorAction(Action)) 4309 Opts.LexEditorPlaceholders = false; 4310 4311 return Diags.getNumErrors() == NumErrorsBefore; 4312 } 4313 4314 static void GeneratePreprocessorOutputArgs( 4315 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4316 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4317 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4318 4319 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4320 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4321 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4322 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4323 MERGER, EXTRACTOR, TABLE_INDEX) \ 4324 GENERATE_OPTION_WITH_MARSHALLING( \ 4325 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4326 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4327 #include "clang/Driver/Options.inc" 4328 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4329 4330 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4331 if (Generate_dM) 4332 GenerateArg(Args, OPT_dM, SA); 4333 if (!Generate_dM && Opts.ShowMacros) 4334 GenerateArg(Args, OPT_dD, SA); 4335 } 4336 4337 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4338 ArgList &Args, DiagnosticsEngine &Diags, 4339 frontend::ActionKind Action) { 4340 unsigned NumErrorsBefore = Diags.getNumErrors(); 4341 4342 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4343 4344 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4345 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4346 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4347 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4348 MERGER, EXTRACTOR, TABLE_INDEX) \ 4349 PARSE_OPTION_WITH_MARSHALLING( \ 4350 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4351 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4352 #include "clang/Driver/Options.inc" 4353 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4354 4355 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4356 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4357 4358 return Diags.getNumErrors() == NumErrorsBefore; 4359 } 4360 4361 static void GenerateTargetArgs(const TargetOptions &Opts, 4362 SmallVectorImpl<const char *> &Args, 4363 CompilerInvocation::StringAllocator SA) { 4364 const TargetOptions *TargetOpts = &Opts; 4365 #define TARGET_OPTION_WITH_MARSHALLING( \ 4366 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4367 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4368 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4369 MERGER, EXTRACTOR, TABLE_INDEX) \ 4370 GENERATE_OPTION_WITH_MARSHALLING( \ 4371 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4372 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4373 #include "clang/Driver/Options.inc" 4374 #undef TARGET_OPTION_WITH_MARSHALLING 4375 4376 if (!Opts.SDKVersion.empty()) 4377 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4378 SA); 4379 } 4380 4381 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4382 DiagnosticsEngine &Diags) { 4383 unsigned NumErrorsBefore = Diags.getNumErrors(); 4384 4385 TargetOptions *TargetOpts = &Opts; 4386 4387 #define TARGET_OPTION_WITH_MARSHALLING( \ 4388 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4389 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4390 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4391 MERGER, EXTRACTOR, TABLE_INDEX) \ 4392 PARSE_OPTION_WITH_MARSHALLING( \ 4393 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4394 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4395 #include "clang/Driver/Options.inc" 4396 #undef TARGET_OPTION_WITH_MARSHALLING 4397 4398 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4399 llvm::VersionTuple Version; 4400 if (Version.tryParse(A->getValue())) 4401 Diags.Report(diag::err_drv_invalid_value) 4402 << A->getAsString(Args) << A->getValue(); 4403 else 4404 Opts.SDKVersion = Version; 4405 } 4406 4407 return Diags.getNumErrors() == NumErrorsBefore; 4408 } 4409 4410 bool CompilerInvocation::CreateFromArgsImpl( 4411 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4412 DiagnosticsEngine &Diags, const char *Argv0) { 4413 unsigned NumErrorsBefore = Diags.getNumErrors(); 4414 4415 // Parse the arguments. 4416 const OptTable &Opts = getDriverOptTable(); 4417 const unsigned IncludedFlagsBitmask = options::CC1Option; 4418 unsigned MissingArgIndex, MissingArgCount; 4419 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4420 MissingArgCount, IncludedFlagsBitmask); 4421 LangOptions &LangOpts = *Res.getLangOpts(); 4422 4423 // Check for missing argument error. 4424 if (MissingArgCount) 4425 Diags.Report(diag::err_drv_missing_argument) 4426 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4427 4428 // Issue errors on unknown arguments. 4429 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4430 auto ArgString = A->getAsString(Args); 4431 std::string Nearest; 4432 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4433 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4434 else 4435 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4436 << ArgString << Nearest; 4437 } 4438 4439 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4440 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4441 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4442 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4443 /*DefaultDiagColor=*/false); 4444 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4445 // FIXME: We shouldn't have to pass the DashX option around here 4446 InputKind DashX = Res.getFrontendOpts().DashX; 4447 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4448 llvm::Triple T(Res.getTargetOpts().Triple); 4449 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4450 Res.getFileSystemOpts().WorkingDir); 4451 4452 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4453 Diags); 4454 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4455 LangOpts.ObjCExceptions = 1; 4456 4457 if (LangOpts.CUDA) { 4458 // During CUDA device-side compilation, the aux triple is the 4459 // triple used for host compilation. 4460 if (LangOpts.CUDAIsDevice) 4461 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4462 } 4463 4464 // Set the triple of the host for OpenMP device compile. 4465 if (LangOpts.OpenMPIsDevice) 4466 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4467 4468 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4469 Res.getFrontendOpts().OutputFile, LangOpts); 4470 4471 // FIXME: Override value name discarding when asan or msan is used because the 4472 // backend passes depend on the name of the alloca in order to print out 4473 // names. 4474 Res.getCodeGenOpts().DiscardValueNames &= 4475 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4476 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4477 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4478 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4479 4480 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4481 Res.getFrontendOpts().ProgramAction, 4482 Res.getFrontendOpts()); 4483 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4484 Res.getFrontendOpts().ProgramAction); 4485 4486 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4487 Res.getFrontendOpts().ProgramAction, 4488 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4489 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4490 Res.getDependencyOutputOpts().Targets.empty()) 4491 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4492 4493 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4494 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4495 !Res.getLangOpts()->Sanitize.empty()) { 4496 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4497 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4498 } 4499 4500 // Store the command-line for using in the CodeView backend. 4501 Res.getCodeGenOpts().Argv0 = Argv0; 4502 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4503 4504 FixupInvocation(Res, Diags, Args, DashX); 4505 4506 return Diags.getNumErrors() == NumErrorsBefore; 4507 } 4508 4509 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4510 ArrayRef<const char *> CommandLineArgs, 4511 DiagnosticsEngine &Diags, 4512 const char *Argv0) { 4513 CompilerInvocation DummyInvocation; 4514 4515 return RoundTrip( 4516 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4517 DiagnosticsEngine &Diags, const char *Argv0) { 4518 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4519 }, 4520 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4521 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4522 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4523 } 4524 4525 std::string CompilerInvocation::getModuleHash() const { 4526 // FIXME: Consider using SHA1 instead of MD5. 4527 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4528 4529 // Note: For QoI reasons, the things we use as a hash here should all be 4530 // dumped via the -module-info flag. 4531 4532 // Start the signature with the compiler version. 4533 HBuilder.add(getClangFullRepositoryVersion()); 4534 4535 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4536 // and getClangFullRepositoryVersion() doesn't include git revision. 4537 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4538 4539 // Extend the signature with the language options 4540 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4541 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4542 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4543 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4544 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4545 #include "clang/Basic/LangOptions.def" 4546 4547 HBuilder.addRange(LangOpts->ModuleFeatures); 4548 4549 HBuilder.add(LangOpts->ObjCRuntime); 4550 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4551 4552 // Extend the signature with the target options. 4553 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4554 TargetOpts->ABI); 4555 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4556 4557 // Extend the signature with preprocessor options. 4558 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4559 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4560 4561 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4562 for (const auto &Macro : getPreprocessorOpts().Macros) { 4563 // If we're supposed to ignore this macro for the purposes of modules, 4564 // don't put it into the hash. 4565 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4566 // Check whether we're ignoring this macro. 4567 StringRef MacroDef = Macro.first; 4568 if (hsOpts.ModulesIgnoreMacros.count( 4569 llvm::CachedHashString(MacroDef.split('=').first))) 4570 continue; 4571 } 4572 4573 HBuilder.add(Macro); 4574 } 4575 4576 // Extend the signature with the sysroot and other header search options. 4577 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4578 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4579 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4580 hsOpts.ModulesValidateDiagnosticOptions); 4581 HBuilder.add(hsOpts.ResourceDir); 4582 4583 if (hsOpts.ModulesStrictContextHash) { 4584 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4585 HBuilder.addRange(hsOpts.UserEntries); 4586 4587 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4588 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4589 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4590 HBuilder.add(diagOpts.get##Name()); 4591 #include "clang/Basic/DiagnosticOptions.def" 4592 #undef DIAGOPT 4593 #undef ENUM_DIAGOPT 4594 } 4595 4596 // Extend the signature with the user build path. 4597 HBuilder.add(hsOpts.ModuleUserBuildPath); 4598 4599 // Extend the signature with the module file extensions. 4600 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4601 ext->hashExtension(HBuilder); 4602 4603 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4604 // affects the debug info in the PCM. 4605 if (getCodeGenOpts().DebugTypeExtRefs) 4606 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4607 4608 // Extend the signature with the enabled sanitizers, if at least one is 4609 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4610 SanitizerSet SanHash = LangOpts->Sanitize; 4611 SanHash.clear(getPPTransparentSanitizers()); 4612 if (!SanHash.empty()) 4613 HBuilder.add(SanHash.Mask); 4614 4615 llvm::MD5::MD5Result Result; 4616 HBuilder.getHasher().final(Result); 4617 uint64_t Hash = Result.high() ^ Result.low(); 4618 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4619 } 4620 4621 void CompilerInvocation::generateCC1CommandLine( 4622 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4623 llvm::Triple T(TargetOpts->Triple); 4624 4625 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4626 GenerateMigratorArgs(MigratorOpts, Args, SA); 4627 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4628 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4629 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4630 GenerateTargetArgs(*TargetOpts, Args, SA); 4631 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4632 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4633 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4634 &*LangOpts); 4635 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4636 CodeGenOpts); 4637 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4638 FrontendOpts.ProgramAction); 4639 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4640 } 4641 4642 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4643 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4644 DiagnosticsEngine &Diags) { 4645 return createVFSFromCompilerInvocation(CI, Diags, 4646 llvm::vfs::getRealFileSystem()); 4647 } 4648 4649 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4650 clang::createVFSFromCompilerInvocation( 4651 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4652 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4653 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4654 return BaseFS; 4655 4656 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4657 // earlier vfs files are on the bottom 4658 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4659 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4660 Result->getBufferForFile(File); 4661 if (!Buffer) { 4662 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4663 continue; 4664 } 4665 4666 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4667 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4668 /*DiagContext*/ nullptr, Result); 4669 if (!FS) { 4670 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4671 continue; 4672 } 4673 4674 Result = FS; 4675 } 4676 return Result; 4677 } 4678