1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <memory> 97 #include <string> 98 #include <tuple> 99 #include <type_traits> 100 #include <utility> 101 #include <vector> 102 103 using namespace clang; 104 using namespace driver; 105 using namespace options; 106 using namespace llvm::opt; 107 108 //===----------------------------------------------------------------------===// 109 // Initialization. 110 //===----------------------------------------------------------------------===// 111 112 CompilerInvocationRefBase::CompilerInvocationRefBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()), 117 AnalyzerOpts(new AnalyzerOptions()) {} 118 119 CompilerInvocationRefBase::CompilerInvocationRefBase( 120 const CompilerInvocationRefBase &X) 121 : LangOpts(new LangOptions(*X.getLangOpts())), 122 TargetOpts(new TargetOptions(X.getTargetOpts())), 123 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 124 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 125 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 126 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase( 129 CompilerInvocationRefBase &&X) = default; 130 131 CompilerInvocationRefBase & 132 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 133 LangOpts.swap(X.LangOpts); 134 TargetOpts.swap(X.TargetOpts); 135 DiagnosticOpts.swap(X.DiagnosticOpts); 136 HeaderSearchOpts.swap(X.HeaderSearchOpts); 137 PreprocessorOpts.swap(X.PreprocessorOpts); 138 AnalyzerOpts.swap(X.AnalyzerOpts); 139 return *this; 140 } 141 142 CompilerInvocationRefBase & 143 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 144 145 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 146 147 //===----------------------------------------------------------------------===// 148 // Normalizers 149 //===----------------------------------------------------------------------===// 150 151 #define SIMPLE_ENUM_VALUE_TABLE 152 #include "clang/Driver/Options.inc" 153 #undef SIMPLE_ENUM_VALUE_TABLE 154 155 static llvm::Optional<bool> 156 normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 157 DiagnosticsEngine &Diags, bool &Success) { 158 if (Args.hasArg(Opt)) 159 return true; 160 return None; 161 } 162 163 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 164 const ArgList &Args, 165 DiagnosticsEngine &, 166 bool &Success) { 167 if (Args.hasArg(Opt)) 168 return false; 169 return None; 170 } 171 172 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 173 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 174 /// unnecessary template instantiations and just ignore it with a variadic 175 /// argument. 176 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 177 const char *Spelling, 178 CompilerInvocation::StringAllocator, 179 Option::OptionClass, unsigned, /*T*/...) { 180 Args.push_back(Spelling); 181 } 182 183 template <typename T> static constexpr bool is_uint64_t_convertible() { 184 return !std::is_same<T, uint64_t>::value && 185 llvm::is_integral_or_enum<T>::value; 186 } 187 188 template <typename T, 189 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 190 static auto makeFlagToValueNormalizer(T Value) { 191 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 192 DiagnosticsEngine &, bool &Success) -> Optional<T> { 193 if (Args.hasArg(Opt)) 194 return Value; 195 return None; 196 }; 197 } 198 199 template <typename T, 200 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 201 static auto makeFlagToValueNormalizer(T Value) { 202 return makeFlagToValueNormalizer(uint64_t(Value)); 203 } 204 205 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 206 OptSpecifier OtherOpt) { 207 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 208 const ArgList &Args, DiagnosticsEngine &, 209 bool &Success) -> Optional<bool> { 210 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 211 return A->getOption().matches(Opt) ? Value : OtherValue; 212 } 213 return None; 214 }; 215 } 216 217 static auto makeBooleanOptionDenormalizer(bool Value) { 218 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 219 CompilerInvocation::StringAllocator, Option::OptionClass, 220 unsigned, bool KeyPath) { 221 if (KeyPath == Value) 222 Args.push_back(Spelling); 223 }; 224 } 225 226 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 227 const char *Spelling, 228 CompilerInvocation::StringAllocator SA, 229 Option::OptionClass OptClass, unsigned, 230 const Twine &Value) { 231 switch (OptClass) { 232 case Option::SeparateClass: 233 case Option::JoinedOrSeparateClass: 234 case Option::JoinedAndSeparateClass: 235 Args.push_back(Spelling); 236 Args.push_back(SA(Value)); 237 break; 238 case Option::JoinedClass: 239 case Option::CommaJoinedClass: 240 Args.push_back(SA(Twine(Spelling) + Value)); 241 break; 242 default: 243 llvm_unreachable("Cannot denormalize an option with option class " 244 "incompatible with string denormalization."); 245 } 246 } 247 248 template <typename T> 249 static void 250 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 251 CompilerInvocation::StringAllocator SA, 252 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 253 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 254 } 255 256 static Optional<SimpleEnumValue> 257 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 258 for (int I = 0, E = Table.Size; I != E; ++I) 259 if (Name == Table.Table[I].Name) 260 return Table.Table[I]; 261 262 return None; 263 } 264 265 static Optional<SimpleEnumValue> 266 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 267 for (int I = 0, E = Table.Size; I != E; ++I) 268 if (Value == Table.Table[I].Value) 269 return Table.Table[I]; 270 271 return None; 272 } 273 274 static llvm::Optional<unsigned> 275 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 276 DiagnosticsEngine &Diags, bool &Success) { 277 assert(TableIndex < SimpleEnumValueTablesSize); 278 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 279 280 auto *Arg = Args.getLastArg(Opt); 281 if (!Arg) 282 return None; 283 284 StringRef ArgValue = Arg->getValue(); 285 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 286 return MaybeEnumVal->Value; 287 288 Success = false; 289 Diags.Report(diag::err_drv_invalid_value) 290 << Arg->getAsString(Args) << ArgValue; 291 return None; 292 } 293 294 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 295 const char *Spelling, 296 CompilerInvocation::StringAllocator SA, 297 Option::OptionClass OptClass, 298 unsigned TableIndex, unsigned Value) { 299 assert(TableIndex < SimpleEnumValueTablesSize); 300 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 301 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 302 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 303 MaybeEnumVal->Name); 304 } else { 305 llvm_unreachable("The simple enum value was not correctly defined in " 306 "the tablegen option description"); 307 } 308 } 309 310 template <typename T> 311 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, T Value) { 316 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 317 static_cast<unsigned>(Value)); 318 } 319 320 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 321 const ArgList &Args, 322 DiagnosticsEngine &Diags, 323 bool &Success) { 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> 332 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 333 DiagnosticsEngine &Diags, bool &Success) { 334 auto *Arg = Args.getLastArg(Opt); 335 if (!Arg) 336 return None; 337 IntTy Res; 338 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 339 Success = false; 340 Diags.Report(diag::err_drv_invalid_int_value) 341 << Arg->getAsString(Args) << Arg->getValue(); 342 return None; 343 } 344 return Res; 345 } 346 347 static Optional<std::vector<std::string>> 348 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 349 DiagnosticsEngine &, bool &Success) { 350 return Args.getAllArgValues(Opt); 351 } 352 353 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 354 const char *Spelling, 355 CompilerInvocation::StringAllocator SA, 356 Option::OptionClass OptClass, 357 unsigned TableIndex, 358 const std::vector<std::string> &Values) { 359 switch (OptClass) { 360 case Option::CommaJoinedClass: { 361 std::string CommaJoinedValue; 362 if (!Values.empty()) { 363 CommaJoinedValue.append(Values.front()); 364 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 365 CommaJoinedValue.append(","); 366 CommaJoinedValue.append(Value); 367 } 368 } 369 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 370 TableIndex, CommaJoinedValue); 371 break; 372 } 373 case Option::JoinedClass: 374 case Option::SeparateClass: 375 case Option::JoinedOrSeparateClass: 376 for (const std::string &Value : Values) 377 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 378 break; 379 default: 380 llvm_unreachable("Cannot denormalize an option with option class " 381 "incompatible with string vector denormalization."); 382 } 383 } 384 385 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 386 const ArgList &Args, 387 DiagnosticsEngine &Diags, 388 bool &Success) { 389 auto *Arg = Args.getLastArg(Opt); 390 if (!Arg) 391 return None; 392 return llvm::Triple::normalize(Arg->getValue()); 393 } 394 395 template <typename T, typename U> 396 static T mergeForwardValue(T KeyPath, U Value) { 397 return static_cast<T>(Value); 398 } 399 400 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 401 return KeyPath | Value; 402 } 403 404 template <typename T> static T extractForwardValue(T KeyPath) { 405 return KeyPath; 406 } 407 408 template <typename T, typename U, U Value> 409 static T extractMaskValue(T KeyPath) { 410 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 411 } 412 413 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 414 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 415 IMPLIED_CHECK, IMPLIED_VALUE, \ 416 NORMALIZER, MERGER, TABLE_INDEX) \ 417 if ((FLAGS)&options::CC1Option) { \ 418 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 419 if (IMPLIED_CHECK) \ 420 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 421 if (SHOULD_PARSE) \ 422 if (auto MaybeValue = \ 423 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 424 KEYPATH = \ 425 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 426 } 427 428 // Capture the extracted value as a lambda argument to avoid potential issues 429 // with lifetime extension of the reference. 430 #define GENERATE_OPTION_WITH_MARSHALLING( \ 431 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 432 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 433 TABLE_INDEX) \ 434 if ((FLAGS)&options::CC1Option) { \ 435 [&](const auto &Extracted) { \ 436 if (ALWAYS_EMIT || \ 437 (Extracted != \ 438 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 439 : (DEFAULT_VALUE)))) \ 440 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 441 TABLE_INDEX, Extracted); \ 442 }(EXTRACTOR(KEYPATH)); \ 443 } 444 445 static const StringRef GetInputKindName(InputKind IK); 446 447 static bool FixupInvocation(CompilerInvocation &Invocation, 448 DiagnosticsEngine &Diags, const ArgList &Args, 449 InputKind IK) { 450 unsigned NumErrorsBefore = Diags.getNumErrors(); 451 452 LangOptions &LangOpts = *Invocation.getLangOpts(); 453 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 454 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 455 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 456 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 457 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 458 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 459 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 460 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 461 462 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 463 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 464 LangOpts.CurrentModule = LangOpts.ModuleName; 465 466 llvm::Triple T(TargetOpts.Triple); 467 llvm::Triple::ArchType Arch = T.getArch(); 468 469 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 470 471 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 472 T.isWindowsMSVCEnvironment()) 473 Diags.Report(diag::err_fe_invalid_exception_model) 474 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 475 476 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 477 Diags.Report(diag::warn_c_kext); 478 479 if (Args.hasArg(OPT_fconcepts_ts)) 480 Diags.Report(diag::warn_fe_concepts_ts_flag); 481 482 if (LangOpts.NewAlignOverride && 483 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 484 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 485 Diags.Report(diag::err_fe_invalid_alignment) 486 << A->getAsString(Args) << A->getValue(); 487 LangOpts.NewAlignOverride = 0; 488 } 489 490 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 491 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 492 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 493 << "-fsycl-is-host"; 494 495 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 496 Diags.Report(diag::err_drv_argument_not_allowed_with) 497 << "-fgnu89-inline" << GetInputKindName(IK); 498 499 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 500 Diags.Report(diag::warn_ignored_hip_only_option) 501 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 502 503 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 504 Diags.Report(diag::warn_ignored_hip_only_option) 505 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 506 507 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 508 // This option should be deprecated for CL > 1.0 because 509 // this option was added for compatibility with OpenCL 1.0. 510 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 511 Diags.Report(diag::warn_option_invalid_ocl_version) 512 << LangOpts.getOpenCLVersionTuple().getAsString() 513 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 514 515 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 516 auto DefaultCC = LangOpts.getDefaultCallingConv(); 517 518 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 519 DefaultCC == LangOptions::DCC_StdCall) && 520 Arch != llvm::Triple::x86; 521 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 522 DefaultCC == LangOptions::DCC_RegCall) && 523 !T.isX86(); 524 if (emitError) 525 Diags.Report(diag::err_drv_argument_not_allowed_with) 526 << A->getSpelling() << T.getTriple(); 527 } 528 529 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 530 Diags.Report(diag::err_drv_argument_only_allowed_with) 531 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 532 << "-fno-legacy-pass-manager"; 533 534 return Diags.getNumErrors() == NumErrorsBefore; 535 } 536 537 //===----------------------------------------------------------------------===// 538 // Deserialization (from args) 539 //===----------------------------------------------------------------------===// 540 541 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 542 DiagnosticsEngine &Diags) { 543 unsigned DefaultOpt = llvm::CodeGenOpt::None; 544 if ((IK.getLanguage() == Language::OpenCL || 545 IK.getLanguage() == Language::OpenCLCXX) && 546 !Args.hasArg(OPT_cl_opt_disable)) 547 DefaultOpt = llvm::CodeGenOpt::Default; 548 549 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 550 if (A->getOption().matches(options::OPT_O0)) 551 return llvm::CodeGenOpt::None; 552 553 if (A->getOption().matches(options::OPT_Ofast)) 554 return llvm::CodeGenOpt::Aggressive; 555 556 assert(A->getOption().matches(options::OPT_O)); 557 558 StringRef S(A->getValue()); 559 if (S == "s" || S == "z") 560 return llvm::CodeGenOpt::Default; 561 562 if (S == "g") 563 return llvm::CodeGenOpt::Less; 564 565 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 566 } 567 568 return DefaultOpt; 569 } 570 571 static unsigned getOptimizationLevelSize(ArgList &Args) { 572 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 573 if (A->getOption().matches(options::OPT_O)) { 574 switch (A->getValue()[0]) { 575 default: 576 return 0; 577 case 's': 578 return 1; 579 case 'z': 580 return 2; 581 } 582 } 583 } 584 return 0; 585 } 586 587 static void GenerateArg(SmallVectorImpl<const char *> &Args, 588 llvm::opt::OptSpecifier OptSpecifier, 589 CompilerInvocation::StringAllocator SA) { 590 Option Opt = getDriverOptTable().getOption(OptSpecifier); 591 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 592 Option::OptionClass::FlagClass, 0); 593 } 594 595 static void GenerateArg(SmallVectorImpl<const char *> &Args, 596 llvm::opt::OptSpecifier OptSpecifier, 597 const Twine &Value, 598 CompilerInvocation::StringAllocator SA) { 599 Option Opt = getDriverOptTable().getOption(OptSpecifier); 600 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 601 Opt.getKind(), 0, Value); 602 } 603 604 // Parse command line arguments into CompilerInvocation. 605 using ParseFn = 606 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 607 DiagnosticsEngine &, const char *)>; 608 609 // Generate command line arguments from CompilerInvocation. 610 using GenerateFn = llvm::function_ref<void( 611 CompilerInvocation &, SmallVectorImpl<const char *> &, 612 CompilerInvocation::StringAllocator)>; 613 614 // May perform round-trip of command line arguments. By default, the round-trip 615 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 616 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 617 // command line flags. 618 // During round-trip, the command line arguments are parsed into a dummy 619 // instance of CompilerInvocation which is used to generate the command line 620 // arguments again. The real CompilerInvocation instance is then created by 621 // parsing the generated arguments, not the original ones. 622 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 623 CompilerInvocation &RealInvocation, 624 CompilerInvocation &DummyInvocation, 625 ArrayRef<const char *> CommandLineArgs, 626 DiagnosticsEngine &Diags, const char *Argv0) { 627 // FIXME: Switch to '#ifndef NDEBUG' when possible. 628 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 629 bool DoRoundTripDefault = true; 630 #else 631 bool DoRoundTripDefault = false; 632 #endif 633 634 bool DoRoundTrip = DoRoundTripDefault; 635 for (const auto *Arg : CommandLineArgs) { 636 if (Arg == StringRef("-round-trip-args")) 637 DoRoundTrip = true; 638 if (Arg == StringRef("-no-round-trip-args")) 639 DoRoundTrip = false; 640 } 641 642 // If round-trip was not requested, simply run the parser with the real 643 // invocation diagnostics. 644 if (!DoRoundTrip) 645 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 646 647 // Serializes quoted (and potentially escaped) arguments. 648 auto SerializeArgs = [](ArrayRef<const char *> Args) { 649 std::string Buffer; 650 llvm::raw_string_ostream OS(Buffer); 651 for (const char *Arg : Args) { 652 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 653 OS << ' '; 654 } 655 OS.flush(); 656 return Buffer; 657 }; 658 659 // Setup a dummy DiagnosticsEngine. 660 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 661 DummyDiags.setClient(new TextDiagnosticBuffer()); 662 663 // Run the first parse on the original arguments with the dummy invocation and 664 // diagnostics. 665 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 666 DummyDiags.getNumWarnings() != 0) { 667 // If the first parse did not succeed, it must be user mistake (invalid 668 // command line arguments). We won't be able to generate arguments that 669 // would reproduce the same result. Let's fail again with the real 670 // invocation and diagnostics, so all side-effects of parsing are visible. 671 unsigned NumWarningsBefore = Diags.getNumWarnings(); 672 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 673 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 674 return Success; 675 676 // Parse with original options and diagnostics succeeded even though it 677 // shouldn't have. Something is off. 678 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 679 Diags.Report(diag::note_cc1_round_trip_original) 680 << SerializeArgs(CommandLineArgs); 681 return false; 682 } 683 684 // Setup string allocator. 685 llvm::BumpPtrAllocator Alloc; 686 llvm::StringSaver StringPool(Alloc); 687 auto SA = [&StringPool](const Twine &Arg) { 688 return StringPool.save(Arg).data(); 689 }; 690 691 // Generate arguments from the dummy invocation. If Generate is the 692 // inverse of Parse, the newly generated arguments must have the same 693 // semantics as the original. 694 SmallVector<const char *> GeneratedArgs1; 695 Generate(DummyInvocation, GeneratedArgs1, SA); 696 697 // Run the second parse, now on the generated arguments, and with the real 698 // invocation and diagnostics. The result is what we will end up using for the 699 // rest of compilation, so if Generate is not inverse of Parse, something down 700 // the line will break. 701 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 702 703 // The first parse on original arguments succeeded, but second parse of 704 // generated arguments failed. Something must be wrong with the generator. 705 if (!Success2) { 706 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 707 Diags.Report(diag::note_cc1_round_trip_generated) 708 << 1 << SerializeArgs(GeneratedArgs1); 709 return false; 710 } 711 712 // Generate arguments again, this time from the options we will end up using 713 // for the rest of the compilation. 714 SmallVector<const char *> GeneratedArgs2; 715 Generate(RealInvocation, GeneratedArgs2, SA); 716 717 // Compares two lists of generated arguments. 718 auto Equal = [](const ArrayRef<const char *> A, 719 const ArrayRef<const char *> B) { 720 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 721 [](const char *AElem, const char *BElem) { 722 return StringRef(AElem) == StringRef(BElem); 723 }); 724 }; 725 726 // If we generated different arguments from what we assume are two 727 // semantically equivalent CompilerInvocations, the Generate function may 728 // be non-deterministic. 729 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 730 Diags.Report(diag::err_cc1_round_trip_mismatch); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 1 << SerializeArgs(GeneratedArgs1); 733 Diags.Report(diag::note_cc1_round_trip_generated) 734 << 2 << SerializeArgs(GeneratedArgs2); 735 return false; 736 } 737 738 Diags.Report(diag::remark_cc1_round_trip_generated) 739 << 1 << SerializeArgs(GeneratedArgs1); 740 Diags.Report(diag::remark_cc1_round_trip_generated) 741 << 2 << SerializeArgs(GeneratedArgs2); 742 743 return Success2; 744 } 745 746 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 747 OptSpecifier GroupWithValue, 748 std::vector<std::string> &Diagnostics) { 749 for (auto *A : Args.filtered(Group)) { 750 if (A->getOption().getKind() == Option::FlagClass) { 751 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 752 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 753 Diagnostics.push_back( 754 std::string(A->getOption().getName().drop_front(1))); 755 } else if (A->getOption().matches(GroupWithValue)) { 756 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 757 // group. Add only the group name to the diagnostics. 758 Diagnostics.push_back( 759 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 760 } else { 761 // Otherwise, add its value (for OPT_W_Joined and similar). 762 Diagnostics.push_back(A->getValue()); 763 } 764 } 765 } 766 767 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 768 // it won't verify the input. 769 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 770 DiagnosticsEngine *Diags); 771 772 static void getAllNoBuiltinFuncValues(ArgList &Args, 773 std::vector<std::string> &Funcs) { 774 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 775 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 776 return Builtin::Context::isBuiltinFunc(FuncName); 777 }); 778 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 779 } 780 781 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 782 SmallVectorImpl<const char *> &Args, 783 CompilerInvocation::StringAllocator SA) { 784 const AnalyzerOptions *AnalyzerOpts = &Opts; 785 786 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 787 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 788 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 789 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 790 MERGER, EXTRACTOR, TABLE_INDEX) \ 791 GENERATE_OPTION_WITH_MARSHALLING( \ 792 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 793 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 794 #include "clang/Driver/Options.inc" 795 #undef ANALYZER_OPTION_WITH_MARSHALLING 796 797 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 798 switch (Opts.AnalysisStoreOpt) { 799 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 800 case NAME##Model: \ 801 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 802 break; 803 #include "clang/StaticAnalyzer/Core/Analyses.def" 804 default: 805 llvm_unreachable("Tried to generate unknown analysis store."); 806 } 807 } 808 809 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 810 switch (Opts.AnalysisConstraintsOpt) { 811 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 812 case NAME##Model: \ 813 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 814 break; 815 #include "clang/StaticAnalyzer/Core/Analyses.def" 816 default: 817 llvm_unreachable("Tried to generate unknown analysis constraint."); 818 } 819 } 820 821 if (Opts.AnalysisDiagOpt != PD_HTML) { 822 switch (Opts.AnalysisDiagOpt) { 823 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 824 case PD_##NAME: \ 825 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 826 break; 827 #include "clang/StaticAnalyzer/Core/Analyses.def" 828 default: 829 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 830 } 831 } 832 833 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 834 switch (Opts.AnalysisPurgeOpt) { 835 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 836 case NAME: \ 837 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 838 break; 839 #include "clang/StaticAnalyzer/Core/Analyses.def" 840 default: 841 llvm_unreachable("Tried to generate unknown analysis purge mode."); 842 } 843 } 844 845 if (Opts.InliningMode != NoRedundancy) { 846 switch (Opts.InliningMode) { 847 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 848 case NAME: \ 849 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 850 break; 851 #include "clang/StaticAnalyzer/Core/Analyses.def" 852 default: 853 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 854 } 855 } 856 857 for (const auto &CP : Opts.CheckersAndPackages) { 858 OptSpecifier Opt = 859 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 860 GenerateArg(Args, Opt, CP.first, SA); 861 } 862 863 AnalyzerOptions ConfigOpts; 864 parseAnalyzerConfigs(ConfigOpts, nullptr); 865 866 for (const auto &C : Opts.Config) { 867 // Don't generate anything that came from parseAnalyzerConfigs. It would be 868 // redundant and may not be valid on the command line. 869 auto Entry = ConfigOpts.Config.find(C.getKey()); 870 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 871 continue; 872 873 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 874 } 875 876 // Nothing to generate for FullCompilerInvocation. 877 } 878 879 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 880 DiagnosticsEngine &Diags) { 881 AnalyzerOptions *AnalyzerOpts = &Opts; 882 bool Success = true; 883 884 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 885 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 886 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 887 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 888 MERGER, EXTRACTOR, TABLE_INDEX) \ 889 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 890 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 891 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 892 MERGER, TABLE_INDEX) 893 #include "clang/Driver/Options.inc" 894 #undef ANALYZER_OPTION_WITH_MARSHALLING 895 896 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 897 StringRef Name = A->getValue(); 898 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 899 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 900 .Case(CMDFLAG, NAME##Model) 901 #include "clang/StaticAnalyzer/Core/Analyses.def" 902 .Default(NumStores); 903 if (Value == NumStores) { 904 Diags.Report(diag::err_drv_invalid_value) 905 << A->getAsString(Args) << Name; 906 Success = false; 907 } else { 908 Opts.AnalysisStoreOpt = Value; 909 } 910 } 911 912 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 913 StringRef Name = A->getValue(); 914 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 915 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 916 .Case(CMDFLAG, NAME##Model) 917 #include "clang/StaticAnalyzer/Core/Analyses.def" 918 .Default(NumConstraints); 919 if (Value == NumConstraints) { 920 Diags.Report(diag::err_drv_invalid_value) 921 << A->getAsString(Args) << Name; 922 Success = false; 923 } else { 924 Opts.AnalysisConstraintsOpt = Value; 925 } 926 } 927 928 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 929 StringRef Name = A->getValue(); 930 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 931 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 932 .Case(CMDFLAG, PD_##NAME) 933 #include "clang/StaticAnalyzer/Core/Analyses.def" 934 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 935 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 936 Diags.Report(diag::err_drv_invalid_value) 937 << A->getAsString(Args) << Name; 938 Success = false; 939 } else { 940 Opts.AnalysisDiagOpt = Value; 941 } 942 } 943 944 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 945 StringRef Name = A->getValue(); 946 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 947 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 948 .Case(CMDFLAG, NAME) 949 #include "clang/StaticAnalyzer/Core/Analyses.def" 950 .Default(NumPurgeModes); 951 if (Value == NumPurgeModes) { 952 Diags.Report(diag::err_drv_invalid_value) 953 << A->getAsString(Args) << Name; 954 Success = false; 955 } else { 956 Opts.AnalysisPurgeOpt = Value; 957 } 958 } 959 960 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 961 StringRef Name = A->getValue(); 962 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 963 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 964 .Case(CMDFLAG, NAME) 965 #include "clang/StaticAnalyzer/Core/Analyses.def" 966 .Default(NumInliningModes); 967 if (Value == NumInliningModes) { 968 Diags.Report(diag::err_drv_invalid_value) 969 << A->getAsString(Args) << Name; 970 Success = false; 971 } else { 972 Opts.InliningMode = Value; 973 } 974 } 975 976 Opts.CheckersAndPackages.clear(); 977 for (const Arg *A : 978 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 979 A->claim(); 980 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 981 // We can have a list of comma separated checker names, e.g: 982 // '-analyzer-checker=cocoa,unix' 983 StringRef CheckerAndPackageList = A->getValue(); 984 SmallVector<StringRef, 16> CheckersAndPackages; 985 CheckerAndPackageList.split(CheckersAndPackages, ","); 986 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 987 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 988 IsEnabled); 989 } 990 991 // Go through the analyzer configuration options. 992 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 993 994 // We can have a list of comma separated config names, e.g: 995 // '-analyzer-config key1=val1,key2=val2' 996 StringRef configList = A->getValue(); 997 SmallVector<StringRef, 4> configVals; 998 configList.split(configVals, ","); 999 for (const auto &configVal : configVals) { 1000 StringRef key, val; 1001 std::tie(key, val) = configVal.split("="); 1002 if (val.empty()) { 1003 Diags.Report(SourceLocation(), 1004 diag::err_analyzer_config_no_value) << configVal; 1005 Success = false; 1006 break; 1007 } 1008 if (val.find('=') != StringRef::npos) { 1009 Diags.Report(SourceLocation(), 1010 diag::err_analyzer_config_multiple_values) 1011 << configVal; 1012 Success = false; 1013 break; 1014 } 1015 1016 // TODO: Check checker options too, possibly in CheckerRegistry. 1017 // Leave unknown non-checker configs unclaimed. 1018 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1019 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) { 1020 Diags.Report(diag::err_analyzer_config_unknown) << key; 1021 Success = false; 1022 } 1023 continue; 1024 } 1025 1026 A->claim(); 1027 Opts.Config[key] = std::string(val); 1028 } 1029 } 1030 1031 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1032 parseAnalyzerConfigs(Opts, &Diags); 1033 else 1034 parseAnalyzerConfigs(Opts, nullptr); 1035 1036 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1037 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1038 if (i != 0) 1039 os << " "; 1040 os << Args.getArgString(i); 1041 } 1042 os.flush(); 1043 1044 return Success; 1045 } 1046 1047 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1048 StringRef OptionName, StringRef DefaultVal) { 1049 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1050 } 1051 1052 static void initOption(AnalyzerOptions::ConfigTable &Config, 1053 DiagnosticsEngine *Diags, 1054 StringRef &OptionField, StringRef Name, 1055 StringRef DefaultVal) { 1056 // String options may be known to invalid (e.g. if the expected string is a 1057 // file name, but the file does not exist), those will have to be checked in 1058 // parseConfigs. 1059 OptionField = getStringOption(Config, Name, DefaultVal); 1060 } 1061 1062 static void initOption(AnalyzerOptions::ConfigTable &Config, 1063 DiagnosticsEngine *Diags, 1064 bool &OptionField, StringRef Name, bool DefaultVal) { 1065 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1066 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1067 .Case("true", true) 1068 .Case("false", false) 1069 .Default(None); 1070 1071 if (!PossiblyInvalidVal) { 1072 if (Diags) 1073 Diags->Report(diag::err_analyzer_config_invalid_input) 1074 << Name << "a boolean"; 1075 else 1076 OptionField = DefaultVal; 1077 } else 1078 OptionField = PossiblyInvalidVal.getValue(); 1079 } 1080 1081 static void initOption(AnalyzerOptions::ConfigTable &Config, 1082 DiagnosticsEngine *Diags, 1083 unsigned &OptionField, StringRef Name, 1084 unsigned DefaultVal) { 1085 1086 OptionField = DefaultVal; 1087 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1088 .getAsInteger(0, OptionField); 1089 if (Diags && HasFailed) 1090 Diags->Report(diag::err_analyzer_config_invalid_input) 1091 << Name << "an unsigned"; 1092 } 1093 1094 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1095 DiagnosticsEngine *Diags) { 1096 // TODO: There's no need to store the entire configtable, it'd be plenty 1097 // enough tostore checker options. 1098 1099 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1100 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1101 1102 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1103 SHALLOW_VAL, DEEP_VAL) \ 1104 switch (AnOpts.getUserMode()) { \ 1105 case UMK_Shallow: \ 1106 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1107 break; \ 1108 case UMK_Deep: \ 1109 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1110 break; \ 1111 } \ 1112 1113 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1114 #undef ANALYZER_OPTION 1115 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1116 1117 // At this point, AnalyzerOptions is configured. Let's validate some options. 1118 1119 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1120 // The current approach only validates the registered checkers which does not 1121 // contain the runtime enabled checkers and optimally we would validate both. 1122 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1123 std::vector<StringRef> Checkers = 1124 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1125 std::vector<StringRef> Packages = 1126 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1127 1128 SmallVector<StringRef, 16> CheckersAndPackages; 1129 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1130 1131 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1132 if (Diags) { 1133 bool IsChecker = CheckerOrPackage.contains('.'); 1134 bool IsValidName = 1135 IsChecker 1136 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1137 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1138 1139 if (!IsValidName) 1140 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1141 << CheckerOrPackage; 1142 } 1143 1144 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1145 } 1146 } 1147 1148 if (!Diags) 1149 return; 1150 1151 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1152 Diags->Report(diag::err_analyzer_config_invalid_input) 1153 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1154 1155 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1156 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1157 << "a filename"; 1158 1159 if (!AnOpts.ModelPath.empty() && 1160 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1161 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1162 << "a filename"; 1163 } 1164 1165 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1166 static void 1167 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1168 CompilerInvocation::StringAllocator SA, 1169 OptSpecifier OptEQ, StringRef Name, 1170 const CodeGenOptions::OptRemark &Remark) { 1171 if (Remark.hasValidPattern()) { 1172 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1173 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1174 GenerateArg(Args, OPT_R_Joined, Name, SA); 1175 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1176 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1177 } 1178 } 1179 1180 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1181 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1182 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1183 static CodeGenOptions::OptRemark 1184 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1185 OptSpecifier OptEQ, StringRef Name) { 1186 CodeGenOptions::OptRemark Result; 1187 1188 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1189 Result.Pattern = A->getValue(); 1190 1191 std::string RegexError; 1192 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1193 if (!Result.Regex->isValid(RegexError)) { 1194 Diags.Report(diag::err_drv_optimization_remark_pattern) 1195 << RegexError << A->getAsString(Args); 1196 return false; 1197 } 1198 1199 return true; 1200 }; 1201 1202 for (Arg *A : Args) { 1203 if (A->getOption().matches(OPT_R_Joined)) { 1204 StringRef Value = A->getValue(); 1205 1206 if (Value == Name) 1207 Result.Kind = CodeGenOptions::RK_Enabled; 1208 else if (Value == "everything") 1209 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1210 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1211 Result.Kind = CodeGenOptions::RK_Disabled; 1212 else if (Value == "no-everything") 1213 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1214 } else if (A->getOption().matches(OptEQ)) { 1215 Result.Kind = CodeGenOptions::RK_WithPattern; 1216 if (!InitializeResultPattern(A)) 1217 return CodeGenOptions::OptRemark(); 1218 } 1219 } 1220 1221 if (Result.Kind == CodeGenOptions::RK_Disabled || 1222 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1223 Result.Pattern = ""; 1224 Result.Regex = nullptr; 1225 } 1226 1227 return Result; 1228 } 1229 1230 static bool parseDiagnosticLevelMask(StringRef FlagName, 1231 const std::vector<std::string> &Levels, 1232 DiagnosticsEngine &Diags, 1233 DiagnosticLevelMask &M) { 1234 bool Success = true; 1235 for (const auto &Level : Levels) { 1236 DiagnosticLevelMask const PM = 1237 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1238 .Case("note", DiagnosticLevelMask::Note) 1239 .Case("remark", DiagnosticLevelMask::Remark) 1240 .Case("warning", DiagnosticLevelMask::Warning) 1241 .Case("error", DiagnosticLevelMask::Error) 1242 .Default(DiagnosticLevelMask::None); 1243 if (PM == DiagnosticLevelMask::None) { 1244 Success = false; 1245 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1246 } 1247 M = M | PM; 1248 } 1249 return Success; 1250 } 1251 1252 static void parseSanitizerKinds(StringRef FlagName, 1253 const std::vector<std::string> &Sanitizers, 1254 DiagnosticsEngine &Diags, SanitizerSet &S) { 1255 for (const auto &Sanitizer : Sanitizers) { 1256 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1257 if (K == SanitizerMask()) 1258 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1259 else 1260 S.set(K, true); 1261 } 1262 } 1263 1264 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1265 SmallVector<StringRef, 4> Values; 1266 serializeSanitizerSet(S, Values); 1267 return Values; 1268 } 1269 1270 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1271 ArgList &Args, DiagnosticsEngine &D, 1272 XRayInstrSet &S) { 1273 llvm::SmallVector<StringRef, 2> BundleParts; 1274 llvm::SplitString(Bundle, BundleParts, ","); 1275 for (const auto &B : BundleParts) { 1276 auto Mask = parseXRayInstrValue(B); 1277 if (Mask == XRayInstrKind::None) 1278 if (B != "none") 1279 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1280 else 1281 S.Mask = Mask; 1282 else if (Mask == XRayInstrKind::All) 1283 S.Mask = Mask; 1284 else 1285 S.set(Mask, true); 1286 } 1287 } 1288 1289 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1290 llvm::SmallVector<StringRef, 2> BundleParts; 1291 serializeXRayInstrValue(S, BundleParts); 1292 std::string Buffer; 1293 llvm::raw_string_ostream OS(Buffer); 1294 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1295 return OS.str(); 1296 } 1297 1298 // Set the profile kind using fprofile-instrument-use-path. 1299 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1300 const Twine &ProfileName) { 1301 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1302 // In error, return silently and let Clang PGOUse report the error message. 1303 if (auto E = ReaderOrErr.takeError()) { 1304 llvm::consumeError(std::move(E)); 1305 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1306 return; 1307 } 1308 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1309 std::move(ReaderOrErr.get()); 1310 if (PGOReader->isIRLevelProfile()) { 1311 if (PGOReader->hasCSIRLevelProfile()) 1312 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1313 else 1314 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1315 } else 1316 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1317 } 1318 1319 void CompilerInvocation::GenerateCodeGenArgs( 1320 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1321 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1322 const LangOptions *LangOpts) { 1323 const CodeGenOptions &CodeGenOpts = Opts; 1324 1325 if (Opts.OptimizationLevel == 0) 1326 GenerateArg(Args, OPT_O0, SA); 1327 else 1328 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1329 1330 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1331 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1332 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1333 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1334 MERGER, EXTRACTOR, TABLE_INDEX) \ 1335 GENERATE_OPTION_WITH_MARSHALLING( \ 1336 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1337 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1338 #include "clang/Driver/Options.inc" 1339 #undef CODEGEN_OPTION_WITH_MARSHALLING 1340 1341 if (Opts.OptimizationLevel > 0) { 1342 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1343 GenerateArg(Args, OPT_finline_functions, SA); 1344 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1345 GenerateArg(Args, OPT_finline_hint_functions, SA); 1346 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1347 GenerateArg(Args, OPT_fno_inline, SA); 1348 } 1349 1350 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1351 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1352 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1353 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1354 1355 Optional<StringRef> DebugInfoVal; 1356 switch (Opts.DebugInfo) { 1357 case codegenoptions::DebugLineTablesOnly: 1358 DebugInfoVal = "line-tables-only"; 1359 break; 1360 case codegenoptions::DebugDirectivesOnly: 1361 DebugInfoVal = "line-directives-only"; 1362 break; 1363 case codegenoptions::DebugInfoConstructor: 1364 DebugInfoVal = "constructor"; 1365 break; 1366 case codegenoptions::LimitedDebugInfo: 1367 DebugInfoVal = "limited"; 1368 break; 1369 case codegenoptions::FullDebugInfo: 1370 DebugInfoVal = "standalone"; 1371 break; 1372 case codegenoptions::UnusedTypeInfo: 1373 DebugInfoVal = "unused-types"; 1374 break; 1375 case codegenoptions::NoDebugInfo: // default value 1376 DebugInfoVal = None; 1377 break; 1378 case codegenoptions::LocTrackingOnly: // implied value 1379 DebugInfoVal = None; 1380 break; 1381 } 1382 if (DebugInfoVal) 1383 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1384 1385 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1386 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1387 1388 for (const auto &Prefix : Opts.DebugPrefixMap) 1389 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1390 Prefix.first + "=" + Prefix.second, SA); 1391 1392 for (const auto &Prefix : Opts.CoveragePrefixMap) 1393 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1394 Prefix.first + "=" + Prefix.second, SA); 1395 1396 if (Opts.NewStructPathTBAA) 1397 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1398 1399 if (Opts.OptimizeSize == 1) 1400 GenerateArg(Args, OPT_O, "s", SA); 1401 else if (Opts.OptimizeSize == 2) 1402 GenerateArg(Args, OPT_O, "z", SA); 1403 1404 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1405 // -ffreestanding. We'll consider that when generating them. 1406 1407 // NoBuiltinFuncs are generated by LangOptions. 1408 1409 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1410 GenerateArg(Args, OPT_funroll_loops, SA); 1411 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1412 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1413 1414 if (!Opts.BinutilsVersion.empty()) 1415 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1416 1417 if (Opts.DebugNameTable == 1418 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1419 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1420 else if (Opts.DebugNameTable == 1421 static_cast<unsigned>( 1422 llvm::DICompileUnit::DebugNameTableKind::Default)) 1423 GenerateArg(Args, OPT_gpubnames, SA); 1424 1425 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1426 // it or PGOUseInstrumentor. 1427 1428 if (Opts.TimePasses) { 1429 if (Opts.TimePassesPerRun) 1430 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1431 else 1432 GenerateArg(Args, OPT_ftime_report, SA); 1433 } 1434 1435 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1436 GenerateArg(Args, OPT_flto, SA); 1437 1438 if (Opts.PrepareForThinLTO) 1439 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1440 1441 if (!Opts.ThinLTOIndexFile.empty()) 1442 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1443 1444 if (Opts.SaveTempsFilePrefix == OutputFile) 1445 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1446 1447 StringRef MemProfileBasename("memprof.profraw"); 1448 if (!Opts.MemoryProfileOutput.empty()) { 1449 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1450 GenerateArg(Args, OPT_fmemory_profile, SA); 1451 } else { 1452 size_t ArgLength = 1453 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1454 GenerateArg(Args, OPT_fmemory_profile_EQ, 1455 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1456 } 1457 } 1458 1459 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1460 GenerateArg(Args, OPT_coverage_version_EQ, 1461 StringRef(Opts.CoverageVersion, 4), SA); 1462 1463 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1464 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1465 // won't be generated.) 1466 1467 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1468 std::string InstrBundle = 1469 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1470 if (!InstrBundle.empty()) 1471 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1472 } 1473 1474 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1475 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1476 else if (Opts.CFProtectionReturn) 1477 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1478 else if (Opts.CFProtectionBranch) 1479 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1480 1481 for (const auto &F : Opts.LinkBitcodeFiles) { 1482 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1483 F.PropagateAttrs && F.Internalize; 1484 GenerateArg(Args, 1485 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1486 F.Filename, SA); 1487 } 1488 1489 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1490 // That would make it easy to generate the option only **once** if it was 1491 // explicitly set to non-default value. 1492 if (Opts.ExplicitEmulatedTLS) { 1493 GenerateArg( 1494 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1495 } 1496 1497 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1498 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1499 1500 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1501 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1502 SA); 1503 1504 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1505 OptSpecifier Opt = 1506 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1507 GenerateArg(Args, Opt, SA); 1508 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1509 OptSpecifier Opt = 1510 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1511 GenerateArg(Args, Opt, SA); 1512 } 1513 1514 if (Opts.EnableAIXExtendedAltivecABI) 1515 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1516 1517 if (!Opts.OptRecordPasses.empty()) 1518 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1519 1520 if (!Opts.OptRecordFormat.empty()) 1521 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1522 1523 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1524 Opts.OptimizationRemark); 1525 1526 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1527 Opts.OptimizationRemarkMissed); 1528 1529 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1530 Opts.OptimizationRemarkAnalysis); 1531 1532 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1533 Opts.DiagnosticsHotnessThreshold 1534 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1535 : "auto", 1536 SA); 1537 1538 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1539 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1540 1541 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1542 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1543 1544 if (!Opts.EmitVersionIdentMetadata) 1545 GenerateArg(Args, OPT_Qn, SA); 1546 1547 switch (Opts.FiniteLoops) { 1548 case CodeGenOptions::FiniteLoopsKind::Language: 1549 break; 1550 case CodeGenOptions::FiniteLoopsKind::Always: 1551 GenerateArg(Args, OPT_ffinite_loops, SA); 1552 break; 1553 case CodeGenOptions::FiniteLoopsKind::Never: 1554 GenerateArg(Args, OPT_fno_finite_loops, SA); 1555 break; 1556 } 1557 } 1558 1559 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1560 InputKind IK, 1561 DiagnosticsEngine &Diags, 1562 const llvm::Triple &T, 1563 const std::string &OutputFile, 1564 const LangOptions &LangOptsRef) { 1565 unsigned NumErrorsBefore = Diags.getNumErrors(); 1566 1567 bool Success = true; 1568 1569 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1570 // TODO: This could be done in Driver 1571 unsigned MaxOptLevel = 3; 1572 if (OptimizationLevel > MaxOptLevel) { 1573 // If the optimization level is not supported, fall back on the default 1574 // optimization 1575 Diags.Report(diag::warn_drv_optimization_value) 1576 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1577 OptimizationLevel = MaxOptLevel; 1578 } 1579 Opts.OptimizationLevel = OptimizationLevel; 1580 1581 // The key paths of codegen options defined in Options.td start with 1582 // "CodeGenOpts.". Let's provide the expected variable name and type. 1583 CodeGenOptions &CodeGenOpts = Opts; 1584 // Some codegen options depend on language options. Let's provide the expected 1585 // variable name and type. 1586 const LangOptions *LangOpts = &LangOptsRef; 1587 1588 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1589 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1590 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1591 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1592 MERGER, EXTRACTOR, TABLE_INDEX) \ 1593 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1594 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1595 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1596 MERGER, TABLE_INDEX) 1597 #include "clang/Driver/Options.inc" 1598 #undef CODEGEN_OPTION_WITH_MARSHALLING 1599 1600 // At O0 we want to fully disable inlining outside of cases marked with 1601 // 'alwaysinline' that are required for correctness. 1602 Opts.setInlining((Opts.OptimizationLevel == 0) 1603 ? CodeGenOptions::OnlyAlwaysInlining 1604 : CodeGenOptions::NormalInlining); 1605 // Explicit inlining flags can disable some or all inlining even at 1606 // optimization levels above zero. 1607 if (Arg *InlineArg = Args.getLastArg( 1608 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1609 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1610 if (Opts.OptimizationLevel > 0) { 1611 const Option &InlineOpt = InlineArg->getOption(); 1612 if (InlineOpt.matches(options::OPT_finline_functions)) 1613 Opts.setInlining(CodeGenOptions::NormalInlining); 1614 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1615 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1616 else 1617 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1618 } 1619 } 1620 1621 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1622 // -fdirect-access-external-data. 1623 Opts.DirectAccessExternalData = 1624 Args.hasArg(OPT_fdirect_access_external_data) || 1625 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1626 LangOpts->PICLevel == 0); 1627 1628 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1629 unsigned Val = 1630 llvm::StringSwitch<unsigned>(A->getValue()) 1631 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1632 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1633 .Case("constructor", codegenoptions::DebugInfoConstructor) 1634 .Case("limited", codegenoptions::LimitedDebugInfo) 1635 .Case("standalone", codegenoptions::FullDebugInfo) 1636 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1637 .Default(~0U); 1638 if (Val == ~0U) 1639 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1640 << A->getValue(); 1641 else 1642 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1643 } 1644 1645 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1646 // constructor homing. 1647 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1648 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1649 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1650 1651 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1652 auto Split = StringRef(Arg).split('='); 1653 Opts.DebugPrefixMap.insert( 1654 {std::string(Split.first), std::string(Split.second)}); 1655 } 1656 1657 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1658 auto Split = StringRef(Arg).split('='); 1659 Opts.CoveragePrefixMap.insert( 1660 {std::string(Split.first), std::string(Split.second)}); 1661 } 1662 1663 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1664 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1665 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1666 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1667 1668 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1669 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1670 Opts.EmitCallSiteInfo = true; 1671 1672 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1673 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1674 << Opts.DIBugsReportFilePath; 1675 Opts.DIBugsReportFilePath = ""; 1676 } 1677 1678 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1679 Args.hasArg(OPT_new_struct_path_tbaa); 1680 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1681 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1682 if (Opts.SimplifyLibCalls) 1683 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1684 Opts.UnrollLoops = 1685 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1686 (Opts.OptimizationLevel > 1)); 1687 Opts.BinutilsVersion = 1688 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1689 1690 Opts.DebugNameTable = static_cast<unsigned>( 1691 Args.hasArg(OPT_ggnu_pubnames) 1692 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1693 : Args.hasArg(OPT_gpubnames) 1694 ? llvm::DICompileUnit::DebugNameTableKind::Default 1695 : llvm::DICompileUnit::DebugNameTableKind::None); 1696 1697 if (!Opts.ProfileInstrumentUsePath.empty()) 1698 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1699 1700 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1701 Opts.TimePasses = true; 1702 1703 // -ftime-report= is only for new pass manager. 1704 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1705 if (Opts.LegacyPassManager) 1706 Diags.Report(diag::err_drv_argument_only_allowed_with) 1707 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1708 1709 StringRef Val = A->getValue(); 1710 if (Val == "per-pass") 1711 Opts.TimePassesPerRun = false; 1712 else if (Val == "per-pass-run") 1713 Opts.TimePassesPerRun = true; 1714 else 1715 Diags.Report(diag::err_drv_invalid_value) 1716 << A->getAsString(Args) << A->getValue(); 1717 } 1718 } 1719 1720 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1721 Opts.PrepareForThinLTO = false; 1722 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1723 StringRef S = A->getValue(); 1724 if (S == "thin") 1725 Opts.PrepareForThinLTO = true; 1726 else if (S != "full") 1727 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1728 } 1729 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1730 if (IK.getLanguage() != Language::LLVM_IR) 1731 Diags.Report(diag::err_drv_argument_only_allowed_with) 1732 << A->getAsString(Args) << "-x ir"; 1733 Opts.ThinLTOIndexFile = 1734 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1735 } 1736 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1737 Opts.SaveTempsFilePrefix = 1738 llvm::StringSwitch<std::string>(A->getValue()) 1739 .Case("obj", OutputFile) 1740 .Default(llvm::sys::path::filename(OutputFile).str()); 1741 1742 // The memory profile runtime appends the pid to make this name more unique. 1743 const char *MemProfileBasename = "memprof.profraw"; 1744 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1745 SmallString<128> Path( 1746 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1747 llvm::sys::path::append(Path, MemProfileBasename); 1748 Opts.MemoryProfileOutput = std::string(Path); 1749 } else if (Args.hasArg(OPT_fmemory_profile)) 1750 Opts.MemoryProfileOutput = MemProfileBasename; 1751 1752 memcpy(Opts.CoverageVersion, "408*", 4); 1753 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1754 if (Args.hasArg(OPT_coverage_version_EQ)) { 1755 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1756 if (CoverageVersion.size() != 4) { 1757 Diags.Report(diag::err_drv_invalid_value) 1758 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1759 << CoverageVersion; 1760 } else { 1761 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1762 } 1763 } 1764 } 1765 // FIXME: For backend options that are not yet recorded as function 1766 // attributes in the IR, keep track of them so we can embed them in a 1767 // separate data section and use them when building the bitcode. 1768 for (const auto &A : Args) { 1769 // Do not encode output and input. 1770 if (A->getOption().getID() == options::OPT_o || 1771 A->getOption().getID() == options::OPT_INPUT || 1772 A->getOption().getID() == options::OPT_x || 1773 A->getOption().getID() == options::OPT_fembed_bitcode || 1774 A->getOption().matches(options::OPT_W_Group)) 1775 continue; 1776 ArgStringList ASL; 1777 A->render(Args, ASL); 1778 for (const auto &arg : ASL) { 1779 StringRef ArgStr(arg); 1780 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1781 // using \00 to separate each commandline options. 1782 Opts.CmdArgs.push_back('\0'); 1783 } 1784 } 1785 1786 auto XRayInstrBundles = 1787 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1788 if (XRayInstrBundles.empty()) 1789 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1790 else 1791 for (const auto &A : XRayInstrBundles) 1792 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1793 Diags, Opts.XRayInstrumentationBundle); 1794 1795 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1796 StringRef Name = A->getValue(); 1797 if (Name == "full") { 1798 Opts.CFProtectionReturn = 1; 1799 Opts.CFProtectionBranch = 1; 1800 } else if (Name == "return") 1801 Opts.CFProtectionReturn = 1; 1802 else if (Name == "branch") 1803 Opts.CFProtectionBranch = 1; 1804 else if (Name != "none") { 1805 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1806 Success = false; 1807 } 1808 } 1809 1810 for (auto *A : 1811 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1812 CodeGenOptions::BitcodeFileToLink F; 1813 F.Filename = A->getValue(); 1814 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1815 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1816 // When linking CUDA bitcode, propagate function attributes so that 1817 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1818 F.PropagateAttrs = true; 1819 F.Internalize = true; 1820 } 1821 Opts.LinkBitcodeFiles.push_back(F); 1822 } 1823 1824 if (Args.getLastArg(OPT_femulated_tls) || 1825 Args.getLastArg(OPT_fno_emulated_tls)) { 1826 Opts.ExplicitEmulatedTLS = true; 1827 } 1828 1829 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1830 StringRef Val = A->getValue(); 1831 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1832 if (!Opts.FPDenormalMode.isValid()) 1833 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1834 } 1835 1836 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1837 StringRef Val = A->getValue(); 1838 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1839 if (!Opts.FP32DenormalMode.isValid()) 1840 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1841 } 1842 1843 // X86_32 has -fppc-struct-return and -freg-struct-return. 1844 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1845 if (Arg *A = 1846 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1847 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1848 // TODO: We might want to consider enabling these options on AIX in the 1849 // future. 1850 if (T.isOSAIX()) 1851 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1852 << A->getSpelling() << T.str(); 1853 1854 const Option &O = A->getOption(); 1855 if (O.matches(OPT_fpcc_struct_return) || 1856 O.matches(OPT_maix_struct_return)) { 1857 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1858 } else { 1859 assert(O.matches(OPT_freg_struct_return) || 1860 O.matches(OPT_msvr4_struct_return)); 1861 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1862 } 1863 } 1864 1865 if (Arg *A = 1866 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1867 if (!T.isOSAIX()) 1868 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1869 << A->getSpelling() << T.str(); 1870 1871 const Option &O = A->getOption(); 1872 if (O.matches(OPT_mabi_EQ_vec_default)) 1873 Diags.Report(diag::err_aix_default_altivec_abi) 1874 << A->getSpelling() << T.str(); 1875 else { 1876 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1877 Opts.EnableAIXExtendedAltivecABI = 1; 1878 } 1879 } 1880 1881 bool NeedLocTracking = false; 1882 1883 if (!Opts.OptRecordFile.empty()) 1884 NeedLocTracking = true; 1885 1886 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1887 Opts.OptRecordPasses = A->getValue(); 1888 NeedLocTracking = true; 1889 } 1890 1891 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1892 Opts.OptRecordFormat = A->getValue(); 1893 NeedLocTracking = true; 1894 } 1895 1896 Opts.OptimizationRemark = 1897 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1898 1899 Opts.OptimizationRemarkMissed = 1900 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1901 1902 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1903 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1904 1905 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1906 Opts.OptimizationRemarkMissed.hasValidPattern() || 1907 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1908 1909 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1910 bool UsingProfile = UsingSampleProfile || 1911 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1912 1913 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1914 // An IR file will contain PGO as metadata 1915 IK.getLanguage() != Language::LLVM_IR) 1916 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1917 << "-fdiagnostics-show-hotness"; 1918 1919 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1920 if (auto *arg = 1921 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1922 auto ResultOrErr = 1923 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1924 1925 if (!ResultOrErr) { 1926 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1927 << "-fdiagnostics-hotness-threshold="; 1928 } else { 1929 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1930 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1931 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1932 !UsingProfile) 1933 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1934 << "-fdiagnostics-hotness-threshold="; 1935 } 1936 } 1937 1938 // If the user requested to use a sample profile for PGO, then the 1939 // backend will need to track source location information so the profile 1940 // can be incorporated into the IR. 1941 if (UsingSampleProfile) 1942 NeedLocTracking = true; 1943 1944 // If the user requested a flag that requires source locations available in 1945 // the backend, make sure that the backend tracks source location information. 1946 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1947 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1948 1949 // Parse -fsanitize-recover= arguments. 1950 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1951 parseSanitizerKinds("-fsanitize-recover=", 1952 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1953 Opts.SanitizeRecover); 1954 parseSanitizerKinds("-fsanitize-trap=", 1955 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1956 Opts.SanitizeTrap); 1957 1958 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1959 1960 if (Args.hasArg(options::OPT_ffinite_loops)) 1961 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1962 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1963 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1964 1965 return Success && Diags.getNumErrors() == NumErrorsBefore; 1966 } 1967 1968 static void 1969 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1970 SmallVectorImpl<const char *> &Args, 1971 CompilerInvocation::StringAllocator SA) { 1972 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1973 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1974 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1975 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1976 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1977 MERGER, EXTRACTOR, TABLE_INDEX) \ 1978 GENERATE_OPTION_WITH_MARSHALLING( \ 1979 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1980 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1981 #include "clang/Driver/Options.inc" 1982 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1983 1984 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1985 GenerateArg(Args, OPT_show_includes, SA); 1986 1987 for (const auto &Dep : Opts.ExtraDeps) { 1988 switch (Dep.second) { 1989 case EDK_SanitizeBlacklist: 1990 // Sanitizer blacklist arguments are generated from LanguageOptions. 1991 continue; 1992 case EDK_ModuleFile: 1993 // Module file arguments are generated from FrontendOptions and 1994 // HeaderSearchOptions. 1995 continue; 1996 case EDK_ProfileList: 1997 // Profile list arguments are generated from LanguageOptions via the 1998 // marshalling infrastructure. 1999 continue; 2000 case EDK_DepFileEntry: 2001 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2002 break; 2003 } 2004 } 2005 } 2006 2007 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2008 ArgList &Args, DiagnosticsEngine &Diags, 2009 frontend::ActionKind Action, 2010 bool ShowLineMarkers) { 2011 unsigned NumErrorsBefore = Diags.getNumErrors(); 2012 bool Success = true; 2013 2014 DependencyOutputOptions &DependencyOutputOpts = Opts; 2015 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2016 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2017 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2018 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2019 MERGER, EXTRACTOR, TABLE_INDEX) \ 2020 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2021 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2022 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2023 MERGER, TABLE_INDEX) 2024 #include "clang/Driver/Options.inc" 2025 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2026 2027 if (Args.hasArg(OPT_show_includes)) { 2028 // Writing both /showIncludes and preprocessor output to stdout 2029 // would produce interleaved output, so use stderr for /showIncludes. 2030 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2031 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2032 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2033 else 2034 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2035 } else { 2036 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2037 } 2038 2039 // Add sanitizer blacklists as extra dependencies. 2040 // They won't be discovered by the regular preprocessor, so 2041 // we let make / ninja to know about this implicit dependency. 2042 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2043 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2044 StringRef Val = A->getValue(); 2045 if (Val.find('=') == StringRef::npos) 2046 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2047 } 2048 if (Opts.IncludeSystemHeaders) { 2049 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2050 StringRef Val = A->getValue(); 2051 if (Val.find('=') == StringRef::npos) 2052 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2053 } 2054 } 2055 } 2056 2057 // -fprofile-list= dependencies. 2058 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2059 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2060 2061 // Propagate the extra dependencies. 2062 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2063 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2064 2065 // Only the -fmodule-file=<file> form. 2066 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2067 StringRef Val = A->getValue(); 2068 if (Val.find('=') == StringRef::npos) 2069 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2070 } 2071 2072 return Success && Diags.getNumErrors() == NumErrorsBefore; 2073 } 2074 2075 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2076 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2077 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2078 // Support both clang's -f[no-]color-diagnostics and gcc's 2079 // -f[no-]diagnostics-colors[=never|always|auto]. 2080 enum { 2081 Colors_On, 2082 Colors_Off, 2083 Colors_Auto 2084 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2085 for (auto *A : Args) { 2086 const Option &O = A->getOption(); 2087 if (O.matches(options::OPT_fcolor_diagnostics) || 2088 O.matches(options::OPT_fdiagnostics_color)) { 2089 ShowColors = Colors_On; 2090 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2091 O.matches(options::OPT_fno_diagnostics_color)) { 2092 ShowColors = Colors_Off; 2093 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2094 StringRef Value(A->getValue()); 2095 if (Value == "always") 2096 ShowColors = Colors_On; 2097 else if (Value == "never") 2098 ShowColors = Colors_Off; 2099 else if (Value == "auto") 2100 ShowColors = Colors_Auto; 2101 } 2102 } 2103 return ShowColors == Colors_On || 2104 (ShowColors == Colors_Auto && 2105 llvm::sys::Process::StandardErrHasColors()); 2106 } 2107 2108 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2109 DiagnosticsEngine &Diags) { 2110 bool Success = true; 2111 for (const auto &Prefix : VerifyPrefixes) { 2112 // Every prefix must start with a letter and contain only alphanumeric 2113 // characters, hyphens, and underscores. 2114 auto BadChar = llvm::find_if(Prefix, [](char C) { 2115 return !isAlphanumeric(C) && C != '-' && C != '_'; 2116 }); 2117 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2118 Success = false; 2119 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2120 Diags.Report(diag::note_drv_verify_prefix_spelling); 2121 } 2122 } 2123 return Success; 2124 } 2125 2126 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2127 SmallVectorImpl<const char *> &Args, 2128 CompilerInvocation::StringAllocator SA) { 2129 const FileSystemOptions &FileSystemOpts = Opts; 2130 2131 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2132 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2133 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2134 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2135 MERGER, EXTRACTOR, TABLE_INDEX) \ 2136 GENERATE_OPTION_WITH_MARSHALLING( \ 2137 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2138 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2139 #include "clang/Driver/Options.inc" 2140 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2141 } 2142 2143 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2144 DiagnosticsEngine &Diags) { 2145 FileSystemOptions &FileSystemOpts = Opts; 2146 bool Success = true; 2147 2148 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2149 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2150 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2151 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2152 MERGER, EXTRACTOR, TABLE_INDEX) \ 2153 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2154 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2155 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2156 MERGER, TABLE_INDEX) 2157 #include "clang/Driver/Options.inc" 2158 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2159 2160 return Success; 2161 } 2162 2163 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2164 SmallVectorImpl<const char *> &Args, 2165 CompilerInvocation::StringAllocator SA) { 2166 const MigratorOptions &MigratorOpts = Opts; 2167 2168 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2169 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2170 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2171 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2172 MERGER, EXTRACTOR, TABLE_INDEX) \ 2173 GENERATE_OPTION_WITH_MARSHALLING( \ 2174 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2175 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2176 #include "clang/Driver/Options.inc" 2177 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2178 } 2179 2180 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2181 DiagnosticsEngine &Diags) { 2182 MigratorOptions &MigratorOpts = Opts; 2183 bool Success = true; 2184 2185 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2186 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2187 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2188 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2189 MERGER, EXTRACTOR, TABLE_INDEX) \ 2190 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2191 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2192 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2193 MERGER, TABLE_INDEX) 2194 #include "clang/Driver/Options.inc" 2195 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2196 2197 return Success; 2198 } 2199 2200 void CompilerInvocation::GenerateDiagnosticArgs( 2201 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2202 StringAllocator SA, bool DefaultDiagColor) { 2203 const DiagnosticOptions *DiagnosticOpts = &Opts; 2204 #define DIAG_OPTION_WITH_MARSHALLING( \ 2205 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2206 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2207 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2208 MERGER, EXTRACTOR, TABLE_INDEX) \ 2209 GENERATE_OPTION_WITH_MARSHALLING( \ 2210 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2211 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2212 #include "clang/Driver/Options.inc" 2213 #undef DIAG_OPTION_WITH_MARSHALLING 2214 2215 if (!Opts.DiagnosticSerializationFile.empty()) 2216 GenerateArg(Args, OPT_diagnostic_serialized_file, 2217 Opts.DiagnosticSerializationFile, SA); 2218 2219 if (Opts.ShowColors) 2220 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2221 2222 if (Opts.VerifyDiagnostics && 2223 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2224 GenerateArg(Args, OPT_verify, SA); 2225 2226 for (const auto &Prefix : Opts.VerifyPrefixes) 2227 if (Prefix != "expected") 2228 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2229 2230 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2231 if (VIU == DiagnosticLevelMask::None) { 2232 // This is the default, don't generate anything. 2233 } else if (VIU == DiagnosticLevelMask::All) { 2234 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2235 } else { 2236 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2237 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2238 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2239 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2240 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2241 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2242 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2243 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2244 } 2245 2246 for (const auto &Warning : Opts.Warnings) { 2247 // This option is automatically generated from UndefPrefixes. 2248 if (Warning == "undef-prefix") 2249 continue; 2250 Args.push_back(SA(StringRef("-W") + Warning)); 2251 } 2252 2253 for (const auto &Remark : Opts.Remarks) { 2254 // These arguments are generated from OptimizationRemark fields of 2255 // CodeGenOptions. 2256 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2257 "pass-analysis", "no-pass-analysis", 2258 "pass-missed", "no-pass-missed"}; 2259 if (llvm::is_contained(IgnoredRemarks, Remark)) 2260 continue; 2261 2262 Args.push_back(SA(StringRef("-R") + Remark)); 2263 } 2264 } 2265 2266 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2267 DiagnosticsEngine *Diags, 2268 bool DefaultDiagColor) { 2269 Optional<DiagnosticsEngine> IgnoringDiags; 2270 if (!Diags) { 2271 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2272 new IgnoringDiagConsumer()); 2273 Diags = &*IgnoringDiags; 2274 } 2275 2276 // The key paths of diagnostic options defined in Options.td start with 2277 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2278 DiagnosticOptions *DiagnosticOpts = &Opts; 2279 bool Success = true; 2280 2281 #define DIAG_OPTION_WITH_MARSHALLING( \ 2282 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2283 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2284 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2285 MERGER, EXTRACTOR, TABLE_INDEX) \ 2286 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2287 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2288 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2289 MERGER, TABLE_INDEX) 2290 #include "clang/Driver/Options.inc" 2291 #undef DIAG_OPTION_WITH_MARSHALLING 2292 2293 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2294 2295 if (Arg *A = 2296 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2297 Opts.DiagnosticSerializationFile = A->getValue(); 2298 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2299 2300 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2301 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2302 if (Args.hasArg(OPT_verify)) 2303 Opts.VerifyPrefixes.push_back("expected"); 2304 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2305 // then sort it to prepare for fast lookup using std::binary_search. 2306 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2307 Opts.VerifyDiagnostics = false; 2308 Success = false; 2309 } 2310 else 2311 llvm::sort(Opts.VerifyPrefixes); 2312 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2313 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2314 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2315 *Diags, DiagMask); 2316 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2317 DiagMask = DiagnosticLevelMask::All; 2318 Opts.setVerifyIgnoreUnexpected(DiagMask); 2319 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2320 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2321 Diags->Report(diag::warn_ignoring_ftabstop_value) 2322 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2323 } 2324 2325 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2326 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2327 2328 return Success; 2329 } 2330 2331 /// Parse the argument to the -ftest-module-file-extension 2332 /// command-line argument. 2333 /// 2334 /// \returns true on error, false on success. 2335 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2336 std::string &BlockName, 2337 unsigned &MajorVersion, 2338 unsigned &MinorVersion, 2339 bool &Hashed, 2340 std::string &UserInfo) { 2341 SmallVector<StringRef, 5> Args; 2342 Arg.split(Args, ':', 5); 2343 if (Args.size() < 5) 2344 return true; 2345 2346 BlockName = std::string(Args[0]); 2347 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2348 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2349 if (Args[3].getAsInteger(2, Hashed)) return true; 2350 if (Args.size() > 4) 2351 UserInfo = std::string(Args[4]); 2352 return false; 2353 } 2354 2355 /// Return a table that associates command line option specifiers with the 2356 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2357 /// intentionally missing, as this case is handled separately from other 2358 /// frontend options. 2359 static const auto &getFrontendActionTable() { 2360 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2361 {frontend::ASTDeclList, OPT_ast_list}, 2362 2363 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2364 {frontend::ASTDump, OPT_ast_dump_all}, 2365 {frontend::ASTDump, OPT_ast_dump_EQ}, 2366 {frontend::ASTDump, OPT_ast_dump}, 2367 {frontend::ASTDump, OPT_ast_dump_lookups}, 2368 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2369 2370 {frontend::ASTPrint, OPT_ast_print}, 2371 {frontend::ASTView, OPT_ast_view}, 2372 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2373 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2374 {frontend::DumpTokens, OPT_dump_tokens}, 2375 {frontend::EmitAssembly, OPT_S}, 2376 {frontend::EmitBC, OPT_emit_llvm_bc}, 2377 {frontend::EmitHTML, OPT_emit_html}, 2378 {frontend::EmitLLVM, OPT_emit_llvm}, 2379 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2380 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2381 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2382 {frontend::EmitObj, OPT_emit_obj}, 2383 2384 {frontend::FixIt, OPT_fixit_EQ}, 2385 {frontend::FixIt, OPT_fixit}, 2386 2387 {frontend::GenerateModule, OPT_emit_module}, 2388 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2389 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2390 {frontend::GeneratePCH, OPT_emit_pch}, 2391 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2392 {frontend::InitOnly, OPT_init_only}, 2393 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2394 {frontend::ModuleFileInfo, OPT_module_file_info}, 2395 {frontend::VerifyPCH, OPT_verify_pch}, 2396 {frontend::PrintPreamble, OPT_print_preamble}, 2397 {frontend::PrintPreprocessedInput, OPT_E}, 2398 {frontend::TemplightDump, OPT_templight_dump}, 2399 {frontend::RewriteMacros, OPT_rewrite_macros}, 2400 {frontend::RewriteObjC, OPT_rewrite_objc}, 2401 {frontend::RewriteTest, OPT_rewrite_test}, 2402 {frontend::RunAnalysis, OPT_analyze}, 2403 {frontend::MigrateSource, OPT_migrate}, 2404 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2405 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2406 OPT_print_dependency_directives_minimized_source}, 2407 }; 2408 2409 return Table; 2410 } 2411 2412 /// Maps command line option to frontend action. 2413 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2414 for (const auto &ActionOpt : getFrontendActionTable()) 2415 if (ActionOpt.second == Opt.getID()) 2416 return ActionOpt.first; 2417 2418 return None; 2419 } 2420 2421 /// Maps frontend action to command line option. 2422 static Optional<OptSpecifier> 2423 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2424 for (const auto &ActionOpt : getFrontendActionTable()) 2425 if (ActionOpt.first == ProgramAction) 2426 return OptSpecifier(ActionOpt.second); 2427 2428 return None; 2429 } 2430 2431 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2432 SmallVectorImpl<const char *> &Args, 2433 CompilerInvocation::StringAllocator SA, 2434 bool IsHeader) { 2435 const FrontendOptions &FrontendOpts = Opts; 2436 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2437 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2438 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2439 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2440 MERGER, EXTRACTOR, TABLE_INDEX) \ 2441 GENERATE_OPTION_WITH_MARSHALLING( \ 2442 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2443 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2444 #include "clang/Driver/Options.inc" 2445 #undef FRONTEND_OPTION_WITH_MARSHALLING 2446 2447 Optional<OptSpecifier> ProgramActionOpt = 2448 getProgramActionOpt(Opts.ProgramAction); 2449 2450 // Generating a simple flag covers most frontend actions. 2451 std::function<void()> GenerateProgramAction = [&]() { 2452 GenerateArg(Args, *ProgramActionOpt, SA); 2453 }; 2454 2455 if (!ProgramActionOpt) { 2456 // PluginAction is the only program action handled separately. 2457 assert(Opts.ProgramAction == frontend::PluginAction && 2458 "Frontend action without option."); 2459 GenerateProgramAction = [&]() { 2460 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2461 }; 2462 } 2463 2464 // FIXME: Simplify the complex 'AST dump' command line. 2465 if (Opts.ProgramAction == frontend::ASTDump) { 2466 GenerateProgramAction = [&]() { 2467 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2468 // marshalling infrastructure. 2469 2470 if (Opts.ASTDumpFormat != ADOF_Default) { 2471 StringRef Format; 2472 switch (Opts.ASTDumpFormat) { 2473 case ADOF_Default: 2474 llvm_unreachable("Default AST dump format."); 2475 case ADOF_JSON: 2476 Format = "json"; 2477 break; 2478 } 2479 2480 if (Opts.ASTDumpAll) 2481 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2482 if (Opts.ASTDumpDecls) 2483 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2484 } else { 2485 if (Opts.ASTDumpAll) 2486 GenerateArg(Args, OPT_ast_dump_all, SA); 2487 if (Opts.ASTDumpDecls) 2488 GenerateArg(Args, OPT_ast_dump, SA); 2489 } 2490 }; 2491 } 2492 2493 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2494 GenerateProgramAction = [&]() { 2495 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2496 }; 2497 } 2498 2499 GenerateProgramAction(); 2500 2501 for (const auto &PluginArgs : Opts.PluginArgs) { 2502 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2503 const char *Spelling = 2504 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2505 for (const auto &PluginArg : PluginArgs.second) 2506 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2507 } 2508 2509 for (const auto &Ext : Opts.ModuleFileExtensions) 2510 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2511 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2512 2513 if (!Opts.CodeCompletionAt.FileName.empty()) 2514 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2515 SA); 2516 2517 for (const auto &Plugin : Opts.Plugins) 2518 GenerateArg(Args, OPT_load, Plugin, SA); 2519 2520 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2521 2522 for (const auto &ModuleFile : Opts.ModuleFiles) 2523 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2524 2525 if (Opts.AuxTargetCPU.hasValue()) 2526 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2527 2528 if (Opts.AuxTargetFeatures.hasValue()) 2529 for (const auto &Feature : *Opts.AuxTargetFeatures) 2530 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2531 2532 { 2533 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2534 StringRef ModuleMap = 2535 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2536 StringRef Header = IsHeader ? "-header" : ""; 2537 2538 StringRef Lang; 2539 switch (Opts.DashX.getLanguage()) { 2540 case Language::C: 2541 Lang = "c"; 2542 break; 2543 case Language::OpenCL: 2544 Lang = "cl"; 2545 break; 2546 case Language::OpenCLCXX: 2547 Lang = "clcpp"; 2548 break; 2549 case Language::CUDA: 2550 Lang = "cuda"; 2551 break; 2552 case Language::HIP: 2553 Lang = "hip"; 2554 break; 2555 case Language::CXX: 2556 Lang = "c++"; 2557 break; 2558 case Language::ObjC: 2559 Lang = "objective-c"; 2560 break; 2561 case Language::ObjCXX: 2562 Lang = "objective-c++"; 2563 break; 2564 case Language::RenderScript: 2565 Lang = "renderscript"; 2566 break; 2567 case Language::Asm: 2568 Lang = "assembler-with-cpp"; 2569 break; 2570 case Language::Unknown: 2571 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2572 "Generating -x argument for unknown language (not precompiled)."); 2573 Lang = "ast"; 2574 break; 2575 case Language::LLVM_IR: 2576 Lang = "ir"; 2577 break; 2578 } 2579 2580 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2581 } 2582 2583 // OPT_INPUT has a unique class, generate it directly. 2584 for (const auto &Input : Opts.Inputs) 2585 Args.push_back(SA(Input.getFile())); 2586 } 2587 2588 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2589 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2590 FrontendOptions &FrontendOpts = Opts; 2591 bool Success = true; 2592 unsigned NumErrorsBefore = Diags.getNumErrors(); 2593 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2594 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2595 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2596 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2597 MERGER, EXTRACTOR, TABLE_INDEX) \ 2598 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2599 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2600 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2601 MERGER, TABLE_INDEX) 2602 #include "clang/Driver/Options.inc" 2603 #undef FRONTEND_OPTION_WITH_MARSHALLING 2604 2605 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2606 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2607 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2608 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2609 assert(ProgramAction && "Option specifier not in Action_Group."); 2610 2611 if (ProgramAction == frontend::ASTDump && 2612 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2613 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2614 .CaseLower("default", ADOF_Default) 2615 .CaseLower("json", ADOF_JSON) 2616 .Default(std::numeric_limits<unsigned>::max()); 2617 2618 if (Val != std::numeric_limits<unsigned>::max()) 2619 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2620 else { 2621 Diags.Report(diag::err_drv_invalid_value) 2622 << A->getAsString(Args) << A->getValue(); 2623 Opts.ASTDumpFormat = ADOF_Default; 2624 } 2625 } 2626 2627 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2628 Opts.FixItSuffix = A->getValue(); 2629 2630 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2631 StringRef ArgStr = 2632 Args.hasArg(OPT_interface_stub_version_EQ) 2633 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2634 : "experimental-ifs-v2"; 2635 if (ArgStr == "experimental-yaml-elf-v1" || 2636 ArgStr == "experimental-ifs-v1" || 2637 ArgStr == "experimental-tapi-elf-v1") { 2638 std::string ErrorMessage = 2639 "Invalid interface stub format: " + ArgStr.str() + 2640 " is deprecated."; 2641 Diags.Report(diag::err_drv_invalid_value) 2642 << "Must specify a valid interface stub format type, ie: " 2643 "-interface-stub-version=experimental-ifs-v2" 2644 << ErrorMessage; 2645 ProgramAction = frontend::ParseSyntaxOnly; 2646 } else if (!ArgStr.startswith("experimental-ifs-")) { 2647 std::string ErrorMessage = 2648 "Invalid interface stub format: " + ArgStr.str() + "."; 2649 Diags.Report(diag::err_drv_invalid_value) 2650 << "Must specify a valid interface stub format type, ie: " 2651 "-interface-stub-version=experimental-ifs-v2" 2652 << ErrorMessage; 2653 ProgramAction = frontend::ParseSyntaxOnly; 2654 } 2655 } 2656 2657 Opts.ProgramAction = *ProgramAction; 2658 } 2659 2660 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2661 Opts.Plugins.emplace_back(A->getValue(0)); 2662 Opts.ProgramAction = frontend::PluginAction; 2663 Opts.ActionName = A->getValue(); 2664 } 2665 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2666 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2667 2668 for (const std::string &Arg : 2669 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2670 std::string BlockName; 2671 unsigned MajorVersion; 2672 unsigned MinorVersion; 2673 bool Hashed; 2674 std::string UserInfo; 2675 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2676 MinorVersion, Hashed, UserInfo)) { 2677 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2678 2679 continue; 2680 } 2681 2682 // Add the testing module file extension. 2683 Opts.ModuleFileExtensions.push_back( 2684 std::make_shared<TestModuleFileExtension>( 2685 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2686 } 2687 2688 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2689 Opts.CodeCompletionAt = 2690 ParsedSourceLocation::FromString(A->getValue()); 2691 if (Opts.CodeCompletionAt.FileName.empty()) 2692 Diags.Report(diag::err_drv_invalid_value) 2693 << A->getAsString(Args) << A->getValue(); 2694 } 2695 2696 Opts.Plugins = Args.getAllArgValues(OPT_load); 2697 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2698 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2699 // Only the -fmodule-file=<file> form. 2700 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2701 StringRef Val = A->getValue(); 2702 if (Val.find('=') == StringRef::npos) 2703 Opts.ModuleFiles.push_back(std::string(Val)); 2704 } 2705 2706 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2707 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2708 << "-emit-module"; 2709 2710 if (Args.hasArg(OPT_aux_target_cpu)) 2711 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2712 if (Args.hasArg(OPT_aux_target_feature)) 2713 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2714 2715 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2716 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2717 Diags.Report(diag::err_drv_argument_not_allowed_with) 2718 << "ARC migration" << "ObjC migration"; 2719 } 2720 2721 InputKind DashX(Language::Unknown); 2722 if (const Arg *A = Args.getLastArg(OPT_x)) { 2723 StringRef XValue = A->getValue(); 2724 2725 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2726 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2727 bool Preprocessed = XValue.consume_back("-cpp-output"); 2728 bool ModuleMap = XValue.consume_back("-module-map"); 2729 IsHeaderFile = !Preprocessed && !ModuleMap && 2730 XValue != "precompiled-header" && 2731 XValue.consume_back("-header"); 2732 2733 // Principal languages. 2734 DashX = llvm::StringSwitch<InputKind>(XValue) 2735 .Case("c", Language::C) 2736 .Case("cl", Language::OpenCL) 2737 .Case("clcpp", Language::OpenCLCXX) 2738 .Case("cuda", Language::CUDA) 2739 .Case("hip", Language::HIP) 2740 .Case("c++", Language::CXX) 2741 .Case("objective-c", Language::ObjC) 2742 .Case("objective-c++", Language::ObjCXX) 2743 .Case("renderscript", Language::RenderScript) 2744 .Default(Language::Unknown); 2745 2746 // "objc[++]-cpp-output" is an acceptable synonym for 2747 // "objective-c[++]-cpp-output". 2748 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2749 DashX = llvm::StringSwitch<InputKind>(XValue) 2750 .Case("objc", Language::ObjC) 2751 .Case("objc++", Language::ObjCXX) 2752 .Default(Language::Unknown); 2753 2754 // Some special cases cannot be combined with suffixes. 2755 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2756 DashX = llvm::StringSwitch<InputKind>(XValue) 2757 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2758 .Case("assembler-with-cpp", Language::Asm) 2759 .Cases("ast", "pcm", "precompiled-header", 2760 InputKind(Language::Unknown, InputKind::Precompiled)) 2761 .Case("ir", Language::LLVM_IR) 2762 .Default(Language::Unknown); 2763 2764 if (DashX.isUnknown()) 2765 Diags.Report(diag::err_drv_invalid_value) 2766 << A->getAsString(Args) << A->getValue(); 2767 2768 if (Preprocessed) 2769 DashX = DashX.getPreprocessed(); 2770 if (ModuleMap) 2771 DashX = DashX.withFormat(InputKind::ModuleMap); 2772 } 2773 2774 // '-' is the default input if none is given. 2775 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2776 Opts.Inputs.clear(); 2777 if (Inputs.empty()) 2778 Inputs.push_back("-"); 2779 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2780 InputKind IK = DashX; 2781 if (IK.isUnknown()) { 2782 IK = FrontendOptions::getInputKindForExtension( 2783 StringRef(Inputs[i]).rsplit('.').second); 2784 // FIXME: Warn on this? 2785 if (IK.isUnknown()) 2786 IK = Language::C; 2787 // FIXME: Remove this hack. 2788 if (i == 0) 2789 DashX = IK; 2790 } 2791 2792 bool IsSystem = false; 2793 2794 // The -emit-module action implicitly takes a module map. 2795 if (Opts.ProgramAction == frontend::GenerateModule && 2796 IK.getFormat() == InputKind::Source) { 2797 IK = IK.withFormat(InputKind::ModuleMap); 2798 IsSystem = Opts.IsSystemModule; 2799 } 2800 2801 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2802 } 2803 2804 Opts.DashX = DashX; 2805 2806 return Diags.getNumErrors() == NumErrorsBefore; 2807 } 2808 2809 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2810 void *MainAddr) { 2811 std::string ClangExecutable = 2812 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2813 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2814 } 2815 2816 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2817 SmallVectorImpl<const char *> &Args, 2818 CompilerInvocation::StringAllocator SA) { 2819 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2820 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2821 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2822 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2823 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2824 MERGER, EXTRACTOR, TABLE_INDEX) \ 2825 GENERATE_OPTION_WITH_MARSHALLING( \ 2826 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2827 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2828 #include "clang/Driver/Options.inc" 2829 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2830 2831 if (Opts.UseLibcxx) 2832 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2833 2834 if (!Opts.ModuleCachePath.empty()) 2835 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2836 2837 for (const auto &File : Opts.PrebuiltModuleFiles) 2838 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2839 2840 for (const auto &Path : Opts.PrebuiltModulePaths) 2841 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2842 2843 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2844 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2845 2846 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2847 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2848 llvm::Optional<bool> IsFramework, 2849 llvm::Optional<bool> IgnoreSysRoot) { 2850 return llvm::find(Groups, Entry.Group) != Groups.end() && 2851 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2852 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2853 }; 2854 2855 auto It = Opts.UserEntries.begin(); 2856 auto End = Opts.UserEntries.end(); 2857 2858 // Add -I..., -F..., and -index-header-map options in order. 2859 for (; It < End && 2860 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2861 ++It) { 2862 OptSpecifier Opt = [It, Matches]() { 2863 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2864 return OPT_F; 2865 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2866 return OPT_I; 2867 if (Matches(*It, frontend::Angled, true, true)) 2868 return OPT_F; 2869 if (Matches(*It, frontend::Angled, false, true)) 2870 return OPT_I; 2871 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2872 }(); 2873 2874 if (It->Group == frontend::IndexHeaderMap) 2875 GenerateArg(Args, OPT_index_header_map, SA); 2876 GenerateArg(Args, Opt, It->Path, SA); 2877 }; 2878 2879 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2880 // have already been generated as "-I[xx]yy". If that's the case, their 2881 // position on command line was such that this has no semantic impact on 2882 // include paths. 2883 for (; It < End && 2884 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2885 ++It) { 2886 OptSpecifier Opt = 2887 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2888 GenerateArg(Args, Opt, It->Path, SA); 2889 } 2890 2891 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2892 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2893 // command line was such that this has no semantic impact on include paths. 2894 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2895 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2896 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2897 GenerateArg(Args, OPT_iquote, It->Path, SA); 2898 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2899 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2900 It->Path, SA); 2901 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2902 GenerateArg(Args, OPT_iframework, It->Path, SA); 2903 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2904 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2905 2906 // Add the paths for the various language specific isystem flags. 2907 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2908 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2909 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2910 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2911 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2912 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2913 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2914 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2915 2916 // Add the internal paths from a driver that detects standard include paths. 2917 // Note: Some paths that came from "-internal-isystem" arguments may have 2918 // already been generated as "-isystem". 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 && 2921 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2922 ++It) { 2923 OptSpecifier Opt = It->Group == frontend::System 2924 ? OPT_internal_isystem 2925 : OPT_internal_externc_isystem; 2926 GenerateArg(Args, Opt, It->Path, SA); 2927 } 2928 2929 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2930 2931 // Add the path prefixes which are implicitly treated as being system headers. 2932 for (const auto &P : Opts.SystemHeaderPrefixes) { 2933 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2934 : OPT_no_system_header_prefix; 2935 GenerateArg(Args, Opt, P.Prefix, SA); 2936 } 2937 2938 for (const std::string &F : Opts.VFSOverlayFiles) 2939 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2940 } 2941 2942 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2943 DiagnosticsEngine &Diags, 2944 const std::string &WorkingDir) { 2945 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2946 bool Success = true; 2947 2948 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2949 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2950 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2951 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2952 MERGER, EXTRACTOR, TABLE_INDEX) \ 2953 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2954 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2955 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2956 MERGER, TABLE_INDEX) 2957 #include "clang/Driver/Options.inc" 2958 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2959 2960 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2961 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2962 2963 // Canonicalize -fmodules-cache-path before storing it. 2964 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2965 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2966 if (WorkingDir.empty()) 2967 llvm::sys::fs::make_absolute(P); 2968 else 2969 llvm::sys::fs::make_absolute(WorkingDir, P); 2970 } 2971 llvm::sys::path::remove_dots(P); 2972 Opts.ModuleCachePath = std::string(P.str()); 2973 2974 // Only the -fmodule-file=<name>=<file> form. 2975 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2976 StringRef Val = A->getValue(); 2977 if (Val.find('=') != StringRef::npos){ 2978 auto Split = Val.split('='); 2979 Opts.PrebuiltModuleFiles.insert( 2980 {std::string(Split.first), std::string(Split.second)}); 2981 } 2982 } 2983 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2984 Opts.AddPrebuiltModulePath(A->getValue()); 2985 2986 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2987 StringRef MacroDef = A->getValue(); 2988 Opts.ModulesIgnoreMacros.insert( 2989 llvm::CachedHashString(MacroDef.split('=').first)); 2990 } 2991 2992 // Add -I..., -F..., and -index-header-map options in order. 2993 bool IsIndexHeaderMap = false; 2994 bool IsSysrootSpecified = 2995 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2996 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2997 if (A->getOption().matches(OPT_index_header_map)) { 2998 // -index-header-map applies to the next -I or -F. 2999 IsIndexHeaderMap = true; 3000 continue; 3001 } 3002 3003 frontend::IncludeDirGroup Group = 3004 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3005 3006 bool IsFramework = A->getOption().matches(OPT_F); 3007 std::string Path = A->getValue(); 3008 3009 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3010 SmallString<32> Buffer; 3011 llvm::sys::path::append(Buffer, Opts.Sysroot, 3012 llvm::StringRef(A->getValue()).substr(1)); 3013 Path = std::string(Buffer.str()); 3014 } 3015 3016 Opts.AddPath(Path, Group, IsFramework, 3017 /*IgnoreSysroot*/ true); 3018 IsIndexHeaderMap = false; 3019 } 3020 3021 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3022 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3023 for (const auto *A : 3024 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3025 if (A->getOption().matches(OPT_iprefix)) 3026 Prefix = A->getValue(); 3027 else if (A->getOption().matches(OPT_iwithprefix)) 3028 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3029 else 3030 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3031 } 3032 3033 for (const auto *A : Args.filtered(OPT_idirafter)) 3034 Opts.AddPath(A->getValue(), frontend::After, false, true); 3035 for (const auto *A : Args.filtered(OPT_iquote)) 3036 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3037 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3038 Opts.AddPath(A->getValue(), frontend::System, false, 3039 !A->getOption().matches(OPT_iwithsysroot)); 3040 for (const auto *A : Args.filtered(OPT_iframework)) 3041 Opts.AddPath(A->getValue(), frontend::System, true, true); 3042 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3043 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3044 /*IgnoreSysRoot=*/false); 3045 3046 // Add the paths for the various language specific isystem flags. 3047 for (const auto *A : Args.filtered(OPT_c_isystem)) 3048 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3049 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3050 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3051 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3052 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3053 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3054 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3055 3056 // Add the internal paths from a driver that detects standard include paths. 3057 for (const auto *A : 3058 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3059 frontend::IncludeDirGroup Group = frontend::System; 3060 if (A->getOption().matches(OPT_internal_externc_isystem)) 3061 Group = frontend::ExternCSystem; 3062 Opts.AddPath(A->getValue(), Group, false, true); 3063 } 3064 3065 // Add the path prefixes which are implicitly treated as being system headers. 3066 for (const auto *A : 3067 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3068 Opts.AddSystemHeaderPrefix( 3069 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3070 3071 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3072 Opts.AddVFSOverlayFile(A->getValue()); 3073 3074 return Success; 3075 } 3076 3077 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3078 const llvm::Triple &T, 3079 std::vector<std::string> &Includes, 3080 LangStandard::Kind LangStd) { 3081 // Set some properties which depend solely on the input kind; it would be nice 3082 // to move these to the language standard, and have the driver resolve the 3083 // input kind + language standard. 3084 // 3085 // FIXME: Perhaps a better model would be for a single source file to have 3086 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3087 // simultaneously active? 3088 if (IK.getLanguage() == Language::Asm) { 3089 Opts.AsmPreprocessor = 1; 3090 } else if (IK.isObjectiveC()) { 3091 Opts.ObjC = 1; 3092 } 3093 3094 if (LangStd == LangStandard::lang_unspecified) { 3095 // Based on the base language, pick one. 3096 switch (IK.getLanguage()) { 3097 case Language::Unknown: 3098 case Language::LLVM_IR: 3099 llvm_unreachable("Invalid input kind!"); 3100 case Language::OpenCL: 3101 LangStd = LangStandard::lang_opencl10; 3102 break; 3103 case Language::OpenCLCXX: 3104 LangStd = LangStandard::lang_openclcpp; 3105 break; 3106 case Language::CUDA: 3107 LangStd = LangStandard::lang_cuda; 3108 break; 3109 case Language::Asm: 3110 case Language::C: 3111 #if defined(CLANG_DEFAULT_STD_C) 3112 LangStd = CLANG_DEFAULT_STD_C; 3113 #else 3114 // The PS4 uses C99 as the default C standard. 3115 if (T.isPS4()) 3116 LangStd = LangStandard::lang_gnu99; 3117 else 3118 LangStd = LangStandard::lang_gnu17; 3119 #endif 3120 break; 3121 case Language::ObjC: 3122 #if defined(CLANG_DEFAULT_STD_C) 3123 LangStd = CLANG_DEFAULT_STD_C; 3124 #else 3125 LangStd = LangStandard::lang_gnu11; 3126 #endif 3127 break; 3128 case Language::CXX: 3129 case Language::ObjCXX: 3130 #if defined(CLANG_DEFAULT_STD_CXX) 3131 LangStd = CLANG_DEFAULT_STD_CXX; 3132 #else 3133 LangStd = LangStandard::lang_gnucxx14; 3134 #endif 3135 break; 3136 case Language::RenderScript: 3137 LangStd = LangStandard::lang_c99; 3138 break; 3139 case Language::HIP: 3140 LangStd = LangStandard::lang_hip; 3141 break; 3142 } 3143 } 3144 3145 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3146 Opts.LangStd = LangStd; 3147 Opts.LineComment = Std.hasLineComments(); 3148 Opts.C99 = Std.isC99(); 3149 Opts.C11 = Std.isC11(); 3150 Opts.C17 = Std.isC17(); 3151 Opts.C2x = Std.isC2x(); 3152 Opts.CPlusPlus = Std.isCPlusPlus(); 3153 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3154 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3155 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3156 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3157 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3158 Opts.GNUMode = Std.isGNUMode(); 3159 Opts.GNUCVersion = 0; 3160 Opts.HexFloats = Std.hasHexFloats(); 3161 Opts.ImplicitInt = Std.hasImplicitInt(); 3162 3163 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3164 3165 // Set OpenCL Version. 3166 Opts.OpenCL = Std.isOpenCL(); 3167 if (LangStd == LangStandard::lang_opencl10) 3168 Opts.OpenCLVersion = 100; 3169 else if (LangStd == LangStandard::lang_opencl11) 3170 Opts.OpenCLVersion = 110; 3171 else if (LangStd == LangStandard::lang_opencl12) 3172 Opts.OpenCLVersion = 120; 3173 else if (LangStd == LangStandard::lang_opencl20) 3174 Opts.OpenCLVersion = 200; 3175 else if (LangStd == LangStandard::lang_opencl30) 3176 Opts.OpenCLVersion = 300; 3177 else if (LangStd == LangStandard::lang_openclcpp) 3178 Opts.OpenCLCPlusPlusVersion = 100; 3179 3180 // OpenCL has some additional defaults. 3181 if (Opts.OpenCL) { 3182 Opts.AltiVec = 0; 3183 Opts.ZVector = 0; 3184 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3185 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3186 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3187 Opts.OpenCLGenericAddressSpace = 3188 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3189 3190 // Include default header file for OpenCL. 3191 if (Opts.IncludeDefaultHeader) { 3192 if (Opts.DeclareOpenCLBuiltins) { 3193 // Only include base header file for builtin types and constants. 3194 Includes.push_back("opencl-c-base.h"); 3195 } else { 3196 Includes.push_back("opencl-c.h"); 3197 } 3198 } 3199 } 3200 3201 Opts.HIP = IK.getLanguage() == Language::HIP; 3202 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3203 if (Opts.HIP) { 3204 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3205 // fuses multiplication/addition instructions without contract flag from 3206 // device library functions in LLVM bitcode, which causes accuracy loss in 3207 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3208 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3209 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3210 // FP contract option is used to allow fuse across statements in frontend 3211 // whereas respecting contract flag in backend. 3212 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3213 } else if (Opts.CUDA) { 3214 // Allow fuse across statements disregarding pragmas. 3215 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3216 } 3217 3218 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3219 3220 // OpenCL and C++ both have bool, true, false keywords. 3221 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3222 3223 // OpenCL has half keyword 3224 Opts.Half = Opts.OpenCL; 3225 } 3226 3227 /// Check if input file kind and language standard are compatible. 3228 static bool IsInputCompatibleWithStandard(InputKind IK, 3229 const LangStandard &S) { 3230 switch (IK.getLanguage()) { 3231 case Language::Unknown: 3232 case Language::LLVM_IR: 3233 llvm_unreachable("should not parse language flags for this input"); 3234 3235 case Language::C: 3236 case Language::ObjC: 3237 case Language::RenderScript: 3238 return S.getLanguage() == Language::C; 3239 3240 case Language::OpenCL: 3241 return S.getLanguage() == Language::OpenCL || 3242 S.getLanguage() == Language::OpenCLCXX; 3243 3244 case Language::OpenCLCXX: 3245 return S.getLanguage() == Language::OpenCLCXX; 3246 3247 case Language::CXX: 3248 case Language::ObjCXX: 3249 return S.getLanguage() == Language::CXX; 3250 3251 case Language::CUDA: 3252 // FIXME: What -std= values should be permitted for CUDA compilations? 3253 return S.getLanguage() == Language::CUDA || 3254 S.getLanguage() == Language::CXX; 3255 3256 case Language::HIP: 3257 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3258 3259 case Language::Asm: 3260 // Accept (and ignore) all -std= values. 3261 // FIXME: The -std= value is not ignored; it affects the tokenization 3262 // and preprocessing rules if we're preprocessing this asm input. 3263 return true; 3264 } 3265 3266 llvm_unreachable("unexpected input language"); 3267 } 3268 3269 /// Get language name for given input kind. 3270 static const StringRef GetInputKindName(InputKind IK) { 3271 switch (IK.getLanguage()) { 3272 case Language::C: 3273 return "C"; 3274 case Language::ObjC: 3275 return "Objective-C"; 3276 case Language::CXX: 3277 return "C++"; 3278 case Language::ObjCXX: 3279 return "Objective-C++"; 3280 case Language::OpenCL: 3281 return "OpenCL"; 3282 case Language::OpenCLCXX: 3283 return "C++ for OpenCL"; 3284 case Language::CUDA: 3285 return "CUDA"; 3286 case Language::RenderScript: 3287 return "RenderScript"; 3288 case Language::HIP: 3289 return "HIP"; 3290 3291 case Language::Asm: 3292 return "Asm"; 3293 case Language::LLVM_IR: 3294 return "LLVM IR"; 3295 3296 case Language::Unknown: 3297 break; 3298 } 3299 llvm_unreachable("unknown input language"); 3300 } 3301 3302 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3303 SmallVectorImpl<const char *> &Args, 3304 StringAllocator SA, 3305 const llvm::Triple &T) { 3306 OptSpecifier StdOpt; 3307 switch (Opts.LangStd) { 3308 case LangStandard::lang_opencl10: 3309 case LangStandard::lang_opencl11: 3310 case LangStandard::lang_opencl12: 3311 case LangStandard::lang_opencl20: 3312 case LangStandard::lang_opencl30: 3313 case LangStandard::lang_openclcpp: 3314 StdOpt = OPT_cl_std_EQ; 3315 break; 3316 default: 3317 StdOpt = OPT_std_EQ; 3318 break; 3319 } 3320 3321 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3322 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3323 3324 if (Opts.IncludeDefaultHeader) 3325 GenerateArg(Args, OPT_finclude_default_header, SA); 3326 if (Opts.DeclareOpenCLBuiltins) 3327 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3328 3329 const LangOptions *LangOpts = &Opts; 3330 3331 #define LANG_OPTION_WITH_MARSHALLING( \ 3332 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3333 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3334 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3335 MERGER, EXTRACTOR, TABLE_INDEX) \ 3336 GENERATE_OPTION_WITH_MARSHALLING( \ 3337 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3338 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3339 #include "clang/Driver/Options.inc" 3340 #undef LANG_OPTION_WITH_MARSHALLING 3341 3342 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3343 3344 if (Opts.ObjC) { 3345 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3346 3347 if (Opts.GC == LangOptions::GCOnly) 3348 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3349 else if (Opts.GC == LangOptions::HybridGC) 3350 GenerateArg(Args, OPT_fobjc_gc, SA); 3351 else if (Opts.ObjCAutoRefCount == 1) 3352 GenerateArg(Args, OPT_fobjc_arc, SA); 3353 3354 if (Opts.ObjCWeakRuntime) 3355 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3356 3357 if (Opts.ObjCWeak) 3358 GenerateArg(Args, OPT_fobjc_weak, SA); 3359 3360 if (Opts.ObjCSubscriptingLegacyRuntime) 3361 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3362 } 3363 3364 if (Opts.GNUCVersion != 0) { 3365 unsigned Major = Opts.GNUCVersion / 100 / 100; 3366 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3367 unsigned Patch = Opts.GNUCVersion % 100; 3368 GenerateArg(Args, OPT_fgnuc_version_EQ, 3369 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3370 } 3371 3372 if (Opts.IgnoreXCOFFVisibility) 3373 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3374 3375 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3376 GenerateArg(Args, OPT_ftrapv, SA); 3377 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3378 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3379 GenerateArg(Args, OPT_fwrapv, SA); 3380 } 3381 3382 if (Opts.MSCompatibilityVersion != 0) { 3383 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3384 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3385 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3386 GenerateArg(Args, OPT_fms_compatibility_version, 3387 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3388 } 3389 3390 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3391 if (!Opts.Trigraphs) 3392 GenerateArg(Args, OPT_fno_trigraphs, SA); 3393 } else { 3394 if (Opts.Trigraphs) 3395 GenerateArg(Args, OPT_ftrigraphs, SA); 3396 } 3397 3398 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3399 GenerateArg(Args, OPT_fblocks, SA); 3400 3401 if (Opts.ConvergentFunctions && 3402 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3403 GenerateArg(Args, OPT_fconvergent_functions, SA); 3404 3405 if (Opts.NoBuiltin && !Opts.Freestanding) 3406 GenerateArg(Args, OPT_fno_builtin, SA); 3407 3408 if (!Opts.NoBuiltin) 3409 for (const auto &Func : Opts.NoBuiltinFuncs) 3410 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3411 3412 if (Opts.LongDoubleSize == 128) 3413 GenerateArg(Args, OPT_mlong_double_128, SA); 3414 else if (Opts.LongDoubleSize == 64) 3415 GenerateArg(Args, OPT_mlong_double_64, SA); 3416 3417 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3418 3419 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3420 // '-fopenmp-targets='. 3421 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3422 GenerateArg(Args, OPT_fopenmp, SA); 3423 3424 if (Opts.OpenMP != 50) 3425 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3426 3427 if (!Opts.OpenMPUseTLS) 3428 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3429 3430 if (Opts.OpenMPIsDevice) 3431 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3432 3433 if (Opts.OpenMPIRBuilder) 3434 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3435 } 3436 3437 if (Opts.OpenMPSimd) { 3438 GenerateArg(Args, OPT_fopenmp_simd, SA); 3439 3440 if (Opts.OpenMP != 50) 3441 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3442 } 3443 3444 if (Opts.OpenMPCUDANumSMs != 0) 3445 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3446 Twine(Opts.OpenMPCUDANumSMs), SA); 3447 3448 if (Opts.OpenMPCUDABlocksPerSM != 0) 3449 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3450 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3451 3452 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3453 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3454 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3455 3456 if (!Opts.OMPTargetTriples.empty()) { 3457 std::string Targets; 3458 llvm::raw_string_ostream OS(Targets); 3459 llvm::interleave( 3460 Opts.OMPTargetTriples, OS, 3461 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3462 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3463 } 3464 3465 if (!Opts.OMPHostIRFile.empty()) 3466 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3467 3468 if (Opts.OpenMPCUDAMode) 3469 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3470 3471 if (Opts.OpenMPCUDATargetParallel) 3472 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3473 3474 if (Opts.OpenMPCUDAForceFullRuntime) 3475 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3476 3477 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3478 // generated from CodeGenOptions. 3479 3480 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3481 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3482 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3483 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3484 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3485 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3486 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3487 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3488 3489 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3490 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3491 3492 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3493 for (const std::string &F : Opts.NoSanitizeFiles) 3494 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3495 3496 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3497 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3498 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3499 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3500 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3501 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3502 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3503 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3504 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3505 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3506 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3507 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3508 3509 if (Opts.getSignReturnAddressScope() == 3510 LangOptions::SignReturnAddressScopeKind::All) 3511 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3512 else if (Opts.getSignReturnAddressScope() == 3513 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3514 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3515 3516 if (Opts.getSignReturnAddressKey() == 3517 LangOptions::SignReturnAddressKeyKind::BKey) 3518 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3519 } 3520 3521 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3522 InputKind IK, const llvm::Triple &T, 3523 std::vector<std::string> &Includes, 3524 DiagnosticsEngine &Diags) { 3525 unsigned NumErrorsBefore = Diags.getNumErrors(); 3526 3527 // FIXME: Cleanup per-file based stuff. 3528 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3529 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3530 LangStd = LangStandard::getLangKind(A->getValue()); 3531 if (LangStd == LangStandard::lang_unspecified) { 3532 Diags.Report(diag::err_drv_invalid_value) 3533 << A->getAsString(Args) << A->getValue(); 3534 // Report supported standards with short description. 3535 for (unsigned KindValue = 0; 3536 KindValue != LangStandard::lang_unspecified; 3537 ++KindValue) { 3538 const LangStandard &Std = LangStandard::getLangStandardForKind( 3539 static_cast<LangStandard::Kind>(KindValue)); 3540 if (IsInputCompatibleWithStandard(IK, Std)) { 3541 auto Diag = Diags.Report(diag::note_drv_use_standard); 3542 Diag << Std.getName() << Std.getDescription(); 3543 unsigned NumAliases = 0; 3544 #define LANGSTANDARD(id, name, lang, desc, features) 3545 #define LANGSTANDARD_ALIAS(id, alias) \ 3546 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3547 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3548 #include "clang/Basic/LangStandards.def" 3549 Diag << NumAliases; 3550 #define LANGSTANDARD(id, name, lang, desc, features) 3551 #define LANGSTANDARD_ALIAS(id, alias) \ 3552 if (KindValue == LangStandard::lang_##id) Diag << alias; 3553 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3554 #include "clang/Basic/LangStandards.def" 3555 } 3556 } 3557 } else { 3558 // Valid standard, check to make sure language and standard are 3559 // compatible. 3560 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3561 if (!IsInputCompatibleWithStandard(IK, Std)) { 3562 Diags.Report(diag::err_drv_argument_not_allowed_with) 3563 << A->getAsString(Args) << GetInputKindName(IK); 3564 } 3565 } 3566 } 3567 3568 // -cl-std only applies for OpenCL language standards. 3569 // Override the -std option in this case. 3570 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3571 LangStandard::Kind OpenCLLangStd 3572 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3573 .Cases("cl", "CL", LangStandard::lang_opencl10) 3574 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3575 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3576 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3577 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3578 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3579 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3580 .Default(LangStandard::lang_unspecified); 3581 3582 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3583 Diags.Report(diag::err_drv_invalid_value) 3584 << A->getAsString(Args) << A->getValue(); 3585 } 3586 else 3587 LangStd = OpenCLLangStd; 3588 } 3589 3590 // These need to be parsed now. They are used to set OpenCL defaults. 3591 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3592 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3593 3594 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3595 3596 // The key paths of codegen options defined in Options.td start with 3597 // "LangOpts->". Let's provide the expected variable name and type. 3598 LangOptions *LangOpts = &Opts; 3599 bool Success = true; 3600 3601 #define LANG_OPTION_WITH_MARSHALLING( \ 3602 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3603 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3604 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3605 MERGER, EXTRACTOR, TABLE_INDEX) \ 3606 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3607 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3608 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3609 MERGER, TABLE_INDEX) 3610 #include "clang/Driver/Options.inc" 3611 #undef LANG_OPTION_WITH_MARSHALLING 3612 3613 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3614 StringRef Name = A->getValue(); 3615 if (Name == "full" || Name == "branch") { 3616 Opts.CFProtectionBranch = 1; 3617 } 3618 } 3619 3620 if (Opts.ObjC) { 3621 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3622 StringRef value = arg->getValue(); 3623 if (Opts.ObjCRuntime.tryParse(value)) 3624 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3625 } 3626 3627 if (Args.hasArg(OPT_fobjc_gc_only)) 3628 Opts.setGC(LangOptions::GCOnly); 3629 else if (Args.hasArg(OPT_fobjc_gc)) 3630 Opts.setGC(LangOptions::HybridGC); 3631 else if (Args.hasArg(OPT_fobjc_arc)) { 3632 Opts.ObjCAutoRefCount = 1; 3633 if (!Opts.ObjCRuntime.allowsARC()) 3634 Diags.Report(diag::err_arc_unsupported_on_runtime); 3635 } 3636 3637 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3638 // whether the feature is actually enabled. This is predominantly 3639 // determined by -fobjc-runtime, but we allow it to be overridden 3640 // from the command line for testing purposes. 3641 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3642 Opts.ObjCWeakRuntime = 1; 3643 else 3644 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3645 3646 // ObjCWeak determines whether __weak is actually enabled. 3647 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3648 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3649 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3650 assert(!Opts.ObjCWeak); 3651 } else if (Opts.getGC() != LangOptions::NonGC) { 3652 Diags.Report(diag::err_objc_weak_with_gc); 3653 } else if (!Opts.ObjCWeakRuntime) { 3654 Diags.Report(diag::err_objc_weak_unsupported); 3655 } else { 3656 Opts.ObjCWeak = 1; 3657 } 3658 } else if (Opts.ObjCAutoRefCount) { 3659 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3660 } 3661 3662 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3663 Opts.ObjCSubscriptingLegacyRuntime = 3664 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3665 } 3666 3667 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3668 // Check that the version has 1 to 3 components and the minor and patch 3669 // versions fit in two decimal digits. 3670 VersionTuple GNUCVer; 3671 bool Invalid = GNUCVer.tryParse(A->getValue()); 3672 unsigned Major = GNUCVer.getMajor(); 3673 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3674 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3675 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3676 Diags.Report(diag::err_drv_invalid_value) 3677 << A->getAsString(Args) << A->getValue(); 3678 } 3679 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3680 } 3681 3682 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3683 // no -fvisibility=* option. 3684 // This is the reason why '-fvisibility' needs to be always generated: 3685 // its absence implies '-mignore-xcoff-visibility'. 3686 // 3687 // Suppose the original cc1 command line does contain '-fvisibility default': 3688 // '-mignore-xcoff-visibility' should not be implied. 3689 // * If '-fvisibility' is not generated (as most options with default values 3690 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3691 // the command line semantics. 3692 // * If '-fvisibility' is generated regardless of its presence and value, 3693 // '-mignore-xcoff-visibility' won't be implied and the command line 3694 // semantics are kept intact. 3695 // 3696 // When the original cc1 command line does **not** contain '-fvisibility', 3697 // '-mignore-xcoff-visibility' is implied. The generated command line will 3698 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3699 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3700 // produce the same arguments. 3701 3702 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3703 !Args.hasArg(OPT_fvisibility))) 3704 Opts.IgnoreXCOFFVisibility = 1; 3705 3706 if (Args.hasArg(OPT_ftrapv)) { 3707 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3708 // Set the handler, if one is specified. 3709 Opts.OverflowHandler = 3710 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3711 } 3712 else if (Args.hasArg(OPT_fwrapv)) 3713 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3714 3715 Opts.MSCompatibilityVersion = 0; 3716 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3717 VersionTuple VT; 3718 if (VT.tryParse(A->getValue())) 3719 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3720 << A->getValue(); 3721 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3722 VT.getMinor().getValueOr(0) * 100000 + 3723 VT.getSubminor().getValueOr(0); 3724 } 3725 3726 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3727 // is specified, or -std is set to a conforming mode. 3728 // Trigraphs are disabled by default in c++1z onwards. 3729 // For z/OS, trigraphs are enabled by default (without regard to the above). 3730 Opts.Trigraphs = 3731 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3732 Opts.Trigraphs = 3733 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3734 3735 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3736 && Opts.OpenCLVersion == 200); 3737 3738 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3739 Opts.SYCLIsDevice || 3740 Args.hasArg(OPT_fconvergent_functions); 3741 3742 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3743 if (!Opts.NoBuiltin) 3744 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3745 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3746 ? 128 3747 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3748 if (Opts.FastRelaxedMath) 3749 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3750 llvm::sort(Opts.ModuleFeatures); 3751 3752 // -mrtd option 3753 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3754 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3755 Diags.Report(diag::err_drv_argument_not_allowed_with) 3756 << A->getSpelling() << "-fdefault-calling-conv"; 3757 else { 3758 if (T.getArch() != llvm::Triple::x86) 3759 Diags.Report(diag::err_drv_argument_not_allowed_with) 3760 << A->getSpelling() << T.getTriple(); 3761 else 3762 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3763 } 3764 } 3765 3766 // Check if -fopenmp is specified and set default version to 5.0. 3767 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3768 // Check if -fopenmp-simd is specified. 3769 bool IsSimdSpecified = 3770 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3771 /*Default=*/false); 3772 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3773 Opts.OpenMPUseTLS = 3774 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3775 Opts.OpenMPIsDevice = 3776 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3777 Opts.OpenMPIRBuilder = 3778 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3779 bool IsTargetSpecified = 3780 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3781 3782 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3783 3784 if (Opts.OpenMP || Opts.OpenMPSimd) { 3785 if (int Version = getLastArgIntValue( 3786 Args, OPT_fopenmp_version_EQ, 3787 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3788 Opts.OpenMP = Version; 3789 // Provide diagnostic when a given target is not expected to be an OpenMP 3790 // device or host. 3791 if (!Opts.OpenMPIsDevice) { 3792 switch (T.getArch()) { 3793 default: 3794 break; 3795 // Add unsupported host targets here: 3796 case llvm::Triple::nvptx: 3797 case llvm::Triple::nvptx64: 3798 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3799 break; 3800 } 3801 } 3802 } 3803 3804 // Set the flag to prevent the implementation from emitting device exception 3805 // handling code for those requiring so. 3806 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3807 Opts.OpenCLCPlusPlus) { 3808 Opts.Exceptions = 0; 3809 Opts.CXXExceptions = 0; 3810 } 3811 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3812 Opts.OpenMPCUDANumSMs = 3813 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3814 Opts.OpenMPCUDANumSMs, Diags); 3815 Opts.OpenMPCUDABlocksPerSM = 3816 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3817 Opts.OpenMPCUDABlocksPerSM, Diags); 3818 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3819 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3820 Opts.OpenMPCUDAReductionBufNum, Diags); 3821 } 3822 3823 // Get the OpenMP target triples if any. 3824 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3825 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3826 auto getArchPtrSize = [](const llvm::Triple &T) { 3827 if (T.isArch16Bit()) 3828 return Arch16Bit; 3829 if (T.isArch32Bit()) 3830 return Arch32Bit; 3831 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3832 return Arch64Bit; 3833 }; 3834 3835 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3836 llvm::Triple TT(A->getValue(i)); 3837 3838 if (TT.getArch() == llvm::Triple::UnknownArch || 3839 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3840 TT.getArch() == llvm::Triple::nvptx || 3841 TT.getArch() == llvm::Triple::nvptx64 || 3842 TT.getArch() == llvm::Triple::amdgcn || 3843 TT.getArch() == llvm::Triple::x86 || 3844 TT.getArch() == llvm::Triple::x86_64)) 3845 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3846 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3847 Diags.Report(diag::err_drv_incompatible_omp_arch) 3848 << A->getValue(i) << T.str(); 3849 else 3850 Opts.OMPTargetTriples.push_back(TT); 3851 } 3852 } 3853 3854 // Get OpenMP host file path if any and report if a non existent file is 3855 // found 3856 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3857 Opts.OMPHostIRFile = A->getValue(); 3858 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3859 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3860 << Opts.OMPHostIRFile; 3861 } 3862 3863 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3864 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3865 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3866 3867 // Set CUDA support for parallel execution of target regions for OpenMP target 3868 // NVPTX/AMDGCN if specified in options. 3869 Opts.OpenMPCUDATargetParallel = 3870 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3871 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3872 3873 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3874 Opts.OpenMPCUDAForceFullRuntime = 3875 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3876 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3877 3878 // FIXME: Eliminate this dependency. 3879 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3880 OptSize = getOptimizationLevelSize(Args); 3881 Opts.Optimize = Opt != 0; 3882 Opts.OptimizeSize = OptSize != 0; 3883 3884 // This is the __NO_INLINE__ define, which just depends on things like the 3885 // optimization level and -fno-inline, not actually whether the backend has 3886 // inlining enabled. 3887 Opts.NoInlineDefine = !Opts.Optimize; 3888 if (Arg *InlineArg = Args.getLastArg( 3889 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3890 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3891 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3892 Opts.NoInlineDefine = true; 3893 3894 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3895 StringRef Val = A->getValue(); 3896 if (Val == "fast") 3897 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3898 else if (Val == "on") 3899 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3900 else if (Val == "off") 3901 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3902 else if (Val == "fast-honor-pragmas") 3903 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3904 else 3905 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3906 } 3907 3908 // Parse -fsanitize= arguments. 3909 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3910 Diags, Opts.Sanitize); 3911 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3912 std::vector<std::string> systemBlacklists = 3913 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3914 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3915 systemBlacklists.begin(), systemBlacklists.end()); 3916 3917 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3918 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3919 3920 StringRef Ver = A->getValue(); 3921 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3922 unsigned Major, Minor = 0; 3923 3924 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3925 // y or y.0 (4 <= y <= current version). 3926 if (!VerParts.first.startswith("0") && 3927 !VerParts.first.getAsInteger(10, Major) && 3928 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3929 (Major == 3 ? VerParts.second.size() == 1 && 3930 !VerParts.second.getAsInteger(10, Minor) 3931 : VerParts.first.size() == Ver.size() || 3932 VerParts.second == "0")) { 3933 // Got a valid version number. 3934 if (Major == 3 && Minor <= 8) 3935 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3936 else if (Major <= 4) 3937 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3938 else if (Major <= 6) 3939 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3940 else if (Major <= 7) 3941 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3942 else if (Major <= 9) 3943 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3944 else if (Major <= 11) 3945 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3946 } else if (Ver != "latest") { 3947 Diags.Report(diag::err_drv_invalid_value) 3948 << A->getAsString(Args) << A->getValue(); 3949 } 3950 } 3951 3952 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3953 StringRef SignScope = A->getValue(); 3954 3955 if (SignScope.equals_lower("none")) 3956 Opts.setSignReturnAddressScope( 3957 LangOptions::SignReturnAddressScopeKind::None); 3958 else if (SignScope.equals_lower("all")) 3959 Opts.setSignReturnAddressScope( 3960 LangOptions::SignReturnAddressScopeKind::All); 3961 else if (SignScope.equals_lower("non-leaf")) 3962 Opts.setSignReturnAddressScope( 3963 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3964 else 3965 Diags.Report(diag::err_drv_invalid_value) 3966 << A->getAsString(Args) << SignScope; 3967 3968 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3969 StringRef SignKey = A->getValue(); 3970 if (!SignScope.empty() && !SignKey.empty()) { 3971 if (SignKey.equals_lower("a_key")) 3972 Opts.setSignReturnAddressKey( 3973 LangOptions::SignReturnAddressKeyKind::AKey); 3974 else if (SignKey.equals_lower("b_key")) 3975 Opts.setSignReturnAddressKey( 3976 LangOptions::SignReturnAddressKeyKind::BKey); 3977 else 3978 Diags.Report(diag::err_drv_invalid_value) 3979 << A->getAsString(Args) << SignKey; 3980 } 3981 } 3982 } 3983 3984 return Success && Diags.getNumErrors() == NumErrorsBefore; 3985 } 3986 3987 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3988 switch (Action) { 3989 case frontend::ASTDeclList: 3990 case frontend::ASTDump: 3991 case frontend::ASTPrint: 3992 case frontend::ASTView: 3993 case frontend::EmitAssembly: 3994 case frontend::EmitBC: 3995 case frontend::EmitHTML: 3996 case frontend::EmitLLVM: 3997 case frontend::EmitLLVMOnly: 3998 case frontend::EmitCodeGenOnly: 3999 case frontend::EmitObj: 4000 case frontend::FixIt: 4001 case frontend::GenerateModule: 4002 case frontend::GenerateModuleInterface: 4003 case frontend::GenerateHeaderModule: 4004 case frontend::GeneratePCH: 4005 case frontend::GenerateInterfaceStubs: 4006 case frontend::ParseSyntaxOnly: 4007 case frontend::ModuleFileInfo: 4008 case frontend::VerifyPCH: 4009 case frontend::PluginAction: 4010 case frontend::RewriteObjC: 4011 case frontend::RewriteTest: 4012 case frontend::RunAnalysis: 4013 case frontend::TemplightDump: 4014 case frontend::MigrateSource: 4015 return false; 4016 4017 case frontend::DumpCompilerOptions: 4018 case frontend::DumpRawTokens: 4019 case frontend::DumpTokens: 4020 case frontend::InitOnly: 4021 case frontend::PrintPreamble: 4022 case frontend::PrintPreprocessedInput: 4023 case frontend::RewriteMacros: 4024 case frontend::RunPreprocessorOnly: 4025 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4026 return true; 4027 } 4028 llvm_unreachable("invalid frontend action"); 4029 } 4030 4031 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4032 SmallVectorImpl<const char *> &Args, 4033 CompilerInvocation::StringAllocator SA, 4034 const LangOptions &LangOpts, 4035 const FrontendOptions &FrontendOpts, 4036 const CodeGenOptions &CodeGenOpts) { 4037 PreprocessorOptions *PreprocessorOpts = &Opts; 4038 4039 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4040 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4041 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4042 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4043 MERGER, EXTRACTOR, TABLE_INDEX) \ 4044 GENERATE_OPTION_WITH_MARSHALLING( \ 4045 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4046 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4047 #include "clang/Driver/Options.inc" 4048 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4049 4050 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4051 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4052 4053 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4054 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4055 4056 for (const auto &MP : Opts.MacroPrefixMap) 4057 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4058 4059 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4060 GenerateArg(Args, OPT_preamble_bytes_EQ, 4061 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4062 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4063 SA); 4064 4065 for (const auto &M : Opts.Macros) { 4066 // Don't generate __CET__ macro definitions. They are implied by the 4067 // -fcf-protection option that is generated elsewhere. 4068 if (M.first == "__CET__=1" && !M.second && 4069 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4070 continue; 4071 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4072 !CodeGenOpts.CFProtectionBranch) 4073 continue; 4074 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4075 CodeGenOpts.CFProtectionBranch) 4076 continue; 4077 4078 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4079 } 4080 4081 for (const auto &I : Opts.Includes) { 4082 // Don't generate OpenCL includes. They are implied by other flags that are 4083 // generated elsewhere. 4084 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4085 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4086 I == "opencl-c.h")) 4087 continue; 4088 4089 GenerateArg(Args, OPT_include, I, SA); 4090 } 4091 4092 for (const auto &CI : Opts.ChainedIncludes) 4093 GenerateArg(Args, OPT_chain_include, CI, SA); 4094 4095 for (const auto &RF : Opts.RemappedFiles) 4096 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4097 4098 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4099 // generated elsewhere. 4100 } 4101 4102 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4103 DiagnosticsEngine &Diags, 4104 frontend::ActionKind Action, 4105 const FrontendOptions &FrontendOpts) { 4106 PreprocessorOptions *PreprocessorOpts = &Opts; 4107 bool Success = true; 4108 4109 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4110 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4111 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4112 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4113 MERGER, EXTRACTOR, TABLE_INDEX) \ 4114 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4115 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4116 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4117 MERGER, TABLE_INDEX) 4118 #include "clang/Driver/Options.inc" 4119 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4120 4121 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4122 Args.hasArg(OPT_pch_through_hdrstop_use); 4123 4124 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4125 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4126 4127 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4128 auto Split = StringRef(A).split('='); 4129 Opts.MacroPrefixMap.insert( 4130 {std::string(Split.first), std::string(Split.second)}); 4131 } 4132 4133 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4134 StringRef Value(A->getValue()); 4135 size_t Comma = Value.find(','); 4136 unsigned Bytes = 0; 4137 unsigned EndOfLine = 0; 4138 4139 if (Comma == StringRef::npos || 4140 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4141 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4142 Diags.Report(diag::err_drv_preamble_format); 4143 else { 4144 Opts.PrecompiledPreambleBytes.first = Bytes; 4145 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4146 } 4147 } 4148 4149 // Add the __CET__ macro if a CFProtection option is set. 4150 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4151 StringRef Name = A->getValue(); 4152 if (Name == "branch") 4153 Opts.addMacroDef("__CET__=1"); 4154 else if (Name == "return") 4155 Opts.addMacroDef("__CET__=2"); 4156 else if (Name == "full") 4157 Opts.addMacroDef("__CET__=3"); 4158 } 4159 4160 // Add macros from the command line. 4161 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4162 if (A->getOption().matches(OPT_D)) 4163 Opts.addMacroDef(A->getValue()); 4164 else 4165 Opts.addMacroUndef(A->getValue()); 4166 } 4167 4168 // Add the ordered list of -includes. 4169 for (const auto *A : Args.filtered(OPT_include)) 4170 Opts.Includes.emplace_back(A->getValue()); 4171 4172 for (const auto *A : Args.filtered(OPT_chain_include)) 4173 Opts.ChainedIncludes.emplace_back(A->getValue()); 4174 4175 for (const auto *A : Args.filtered(OPT_remap_file)) { 4176 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4177 4178 if (Split.second.empty()) { 4179 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4180 continue; 4181 } 4182 4183 Opts.addRemappedFile(Split.first, Split.second); 4184 } 4185 4186 // Always avoid lexing editor placeholders when we're just running the 4187 // preprocessor as we never want to emit the 4188 // "editor placeholder in source file" error in PP only mode. 4189 if (isStrictlyPreprocessorAction(Action)) 4190 Opts.LexEditorPlaceholders = false; 4191 4192 return Success; 4193 } 4194 4195 static void GeneratePreprocessorOutputArgs( 4196 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4197 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4198 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4199 4200 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4201 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4202 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4203 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4204 MERGER, EXTRACTOR, TABLE_INDEX) \ 4205 GENERATE_OPTION_WITH_MARSHALLING( \ 4206 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4207 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4208 #include "clang/Driver/Options.inc" 4209 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4210 4211 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4212 if (Generate_dM) 4213 GenerateArg(Args, OPT_dM, SA); 4214 if (!Generate_dM && Opts.ShowMacros) 4215 GenerateArg(Args, OPT_dD, SA); 4216 } 4217 4218 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4219 ArgList &Args, DiagnosticsEngine &Diags, 4220 frontend::ActionKind Action) { 4221 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4222 unsigned NumErrorsBefore = Diags.getNumErrors(); 4223 bool Success = true; 4224 4225 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4226 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4227 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4228 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4229 MERGER, EXTRACTOR, TABLE_INDEX) \ 4230 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4231 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4232 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4233 MERGER, TABLE_INDEX) 4234 #include "clang/Driver/Options.inc" 4235 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4236 4237 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4238 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4239 4240 return Success && Diags.getNumErrors() == NumErrorsBefore; 4241 } 4242 4243 static void GenerateTargetArgs(const TargetOptions &Opts, 4244 SmallVectorImpl<const char *> &Args, 4245 CompilerInvocation::StringAllocator SA) { 4246 const TargetOptions *TargetOpts = &Opts; 4247 #define TARGET_OPTION_WITH_MARSHALLING( \ 4248 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4249 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4250 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4251 MERGER, EXTRACTOR, TABLE_INDEX) \ 4252 GENERATE_OPTION_WITH_MARSHALLING( \ 4253 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4254 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4255 #include "clang/Driver/Options.inc" 4256 #undef TARGET_OPTION_WITH_MARSHALLING 4257 4258 if (!Opts.SDKVersion.empty()) 4259 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4260 SA); 4261 } 4262 4263 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4264 DiagnosticsEngine &Diags) { 4265 TargetOptions *TargetOpts = &Opts; 4266 unsigned NumErrorsBefore = Diags.getNumErrors(); 4267 bool Success = true; 4268 4269 #define TARGET_OPTION_WITH_MARSHALLING( \ 4270 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4271 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4272 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4273 MERGER, EXTRACTOR, TABLE_INDEX) \ 4274 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4275 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4276 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4277 MERGER, TABLE_INDEX) 4278 #include "clang/Driver/Options.inc" 4279 #undef TARGET_OPTION_WITH_MARSHALLING 4280 4281 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4282 llvm::VersionTuple Version; 4283 if (Version.tryParse(A->getValue())) 4284 Diags.Report(diag::err_drv_invalid_value) 4285 << A->getAsString(Args) << A->getValue(); 4286 else 4287 Opts.SDKVersion = Version; 4288 } 4289 4290 return Success && Diags.getNumErrors() == NumErrorsBefore; 4291 } 4292 4293 bool CompilerInvocation::CreateFromArgsImpl( 4294 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4295 DiagnosticsEngine &Diags, const char *Argv0) { 4296 bool Success = true; 4297 4298 // Parse the arguments. 4299 const OptTable &Opts = getDriverOptTable(); 4300 const unsigned IncludedFlagsBitmask = options::CC1Option; 4301 unsigned MissingArgIndex, MissingArgCount; 4302 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4303 MissingArgCount, IncludedFlagsBitmask); 4304 LangOptions &LangOpts = *Res.getLangOpts(); 4305 4306 // Check for missing argument error. 4307 if (MissingArgCount) { 4308 Diags.Report(diag::err_drv_missing_argument) 4309 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4310 Success = false; 4311 } 4312 4313 // Issue errors on unknown arguments. 4314 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4315 auto ArgString = A->getAsString(Args); 4316 std::string Nearest; 4317 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4318 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4319 else 4320 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4321 << ArgString << Nearest; 4322 Success = false; 4323 } 4324 4325 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4326 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4327 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4328 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4329 /*DefaultDiagColor=*/false); 4330 Success &= ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 4331 LangOpts.IsHeaderFile); 4332 // FIXME: We shouldn't have to pass the DashX option around here 4333 InputKind DashX = Res.getFrontendOpts().DashX; 4334 Success &= ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4335 llvm::Triple T(Res.getTargetOpts().Triple); 4336 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4337 Res.getFileSystemOpts().WorkingDir); 4338 if (DashX.getFormat() == InputKind::Precompiled || 4339 DashX.getLanguage() == Language::LLVM_IR) { 4340 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4341 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4342 // what the input type is. 4343 if (Args.hasArg(OPT_fobjc_arc)) 4344 LangOpts.ObjCAutoRefCount = 1; 4345 // PIClevel and PIELevel are needed during code generation and this should be 4346 // set regardless of the input type. 4347 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4348 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4349 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4350 Diags, LangOpts.Sanitize); 4351 } else { 4352 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4353 // FIXME: Should we really be calling this for an Language::Asm input? 4354 Success &= ParseLangArgs(LangOpts, Args, DashX, T, 4355 Res.getPreprocessorOpts().Includes, Diags); 4356 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4357 LangOpts.ObjCExceptions = 1; 4358 } 4359 4360 if (LangOpts.CUDA) { 4361 // During CUDA device-side compilation, the aux triple is the 4362 // triple used for host compilation. 4363 if (LangOpts.CUDAIsDevice) 4364 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4365 } 4366 4367 // Set the triple of the host for OpenMP device compile. 4368 if (LangOpts.OpenMPIsDevice) 4369 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4370 4371 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4372 Res.getFrontendOpts().OutputFile, LangOpts); 4373 4374 // FIXME: Override value name discarding when asan or msan is used because the 4375 // backend passes depend on the name of the alloca in order to print out 4376 // names. 4377 Res.getCodeGenOpts().DiscardValueNames &= 4378 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4379 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4380 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4381 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4382 4383 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4384 Res.getFrontendOpts().ProgramAction, 4385 Res.getFrontendOpts()); 4386 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4387 Res.getFrontendOpts().ProgramAction); 4388 4389 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4390 Res.getFrontendOpts().ProgramAction, 4391 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4392 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4393 Res.getDependencyOutputOpts().Targets.empty()) { 4394 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4395 Success = false; 4396 } 4397 4398 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4399 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4400 !Res.getLangOpts()->Sanitize.empty()) { 4401 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4402 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4403 } 4404 4405 // Store the command-line for using in the CodeView backend. 4406 Res.getCodeGenOpts().Argv0 = Argv0; 4407 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4408 4409 Success &= FixupInvocation(Res, Diags, Args, DashX); 4410 4411 return Success; 4412 } 4413 4414 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4415 ArrayRef<const char *> CommandLineArgs, 4416 DiagnosticsEngine &Diags, 4417 const char *Argv0) { 4418 CompilerInvocation DummyInvocation; 4419 4420 return RoundTrip( 4421 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4422 DiagnosticsEngine &Diags, const char *Argv0) { 4423 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4424 }, 4425 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4426 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4427 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4428 } 4429 4430 std::string CompilerInvocation::getModuleHash() const { 4431 // Note: For QoI reasons, the things we use as a hash here should all be 4432 // dumped via the -module-info flag. 4433 using llvm::hash_code; 4434 using llvm::hash_value; 4435 using llvm::hash_combine; 4436 using llvm::hash_combine_range; 4437 4438 // Start the signature with the compiler version. 4439 // FIXME: We'd rather use something more cryptographically sound than 4440 // CityHash, but this will do for now. 4441 hash_code code = hash_value(getClangFullRepositoryVersion()); 4442 4443 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4444 // and getClangFullRepositoryVersion() doesn't include git revision. 4445 code = hash_combine(code, serialization::VERSION_MAJOR, 4446 serialization::VERSION_MINOR); 4447 4448 // Extend the signature with the language options 4449 #define LANGOPT(Name, Bits, Default, Description) \ 4450 code = hash_combine(code, LangOpts->Name); 4451 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4452 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4453 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4454 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4455 #include "clang/Basic/LangOptions.def" 4456 4457 for (StringRef Feature : LangOpts->ModuleFeatures) 4458 code = hash_combine(code, Feature); 4459 4460 code = hash_combine(code, LangOpts->ObjCRuntime); 4461 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4462 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4463 4464 // Extend the signature with the target options. 4465 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4466 TargetOpts->TuneCPU, TargetOpts->ABI); 4467 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4468 code = hash_combine(code, FeatureAsWritten); 4469 4470 // Extend the signature with preprocessor options. 4471 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4472 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4473 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4474 4475 for (const auto &I : getPreprocessorOpts().Macros) { 4476 // If we're supposed to ignore this macro for the purposes of modules, 4477 // don't put it into the hash. 4478 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4479 // Check whether we're ignoring this macro. 4480 StringRef MacroDef = I.first; 4481 if (hsOpts.ModulesIgnoreMacros.count( 4482 llvm::CachedHashString(MacroDef.split('=').first))) 4483 continue; 4484 } 4485 4486 code = hash_combine(code, I.first, I.second); 4487 } 4488 4489 // Extend the signature with the sysroot and other header search options. 4490 code = hash_combine(code, hsOpts.Sysroot, 4491 hsOpts.ModuleFormat, 4492 hsOpts.UseDebugInfo, 4493 hsOpts.UseBuiltinIncludes, 4494 hsOpts.UseStandardSystemIncludes, 4495 hsOpts.UseStandardCXXIncludes, 4496 hsOpts.UseLibcxx, 4497 hsOpts.ModulesValidateDiagnosticOptions); 4498 code = hash_combine(code, hsOpts.ResourceDir); 4499 4500 if (hsOpts.ModulesStrictContextHash) { 4501 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4502 hsOpts.SystemHeaderPrefixes.end()); 4503 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4504 hsOpts.UserEntries.end()); 4505 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4506 hsOpts.UserEntries.size(), UEC); 4507 4508 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4509 #define DIAGOPT(Name, Bits, Default) \ 4510 code = hash_combine(code, diagOpts.Name); 4511 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4512 code = hash_combine(code, diagOpts.get##Name()); 4513 #include "clang/Basic/DiagnosticOptions.def" 4514 #undef DIAGOPT 4515 #undef ENUM_DIAGOPT 4516 } 4517 4518 // Extend the signature with the user build path. 4519 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4520 4521 // Extend the signature with the module file extensions. 4522 const FrontendOptions &frontendOpts = getFrontendOpts(); 4523 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4524 code = ext->hashExtension(code); 4525 } 4526 4527 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4528 // affects the debug info in the PCM. 4529 if (getCodeGenOpts().DebugTypeExtRefs) 4530 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4531 code = hash_combine(code, KeyValue.first, KeyValue.second); 4532 4533 // Extend the signature with the enabled sanitizers, if at least one is 4534 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4535 SanitizerSet SanHash = LangOpts->Sanitize; 4536 SanHash.clear(getPPTransparentSanitizers()); 4537 if (!SanHash.empty()) 4538 code = hash_combine(code, SanHash.Mask); 4539 4540 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4541 } 4542 4543 void CompilerInvocation::generateCC1CommandLine( 4544 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4545 llvm::Triple T(TargetOpts->Triple); 4546 4547 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4548 GenerateMigratorArgs(MigratorOpts, Args, SA); 4549 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4550 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4551 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4552 GenerateTargetArgs(*TargetOpts, Args, SA); 4553 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4554 4555 InputKind DashX = FrontendOpts.DashX; 4556 if (DashX.getFormat() == InputKind::Precompiled || 4557 DashX.getLanguage() == Language::LLVM_IR) { 4558 if (LangOpts->ObjCAutoRefCount) 4559 GenerateArg(Args, OPT_fobjc_arc, SA); 4560 if (LangOpts->PICLevel != 0) 4561 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4562 if (LangOpts->PIE) 4563 GenerateArg(Args, OPT_pic_is_pie, SA); 4564 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4565 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4566 } else { 4567 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4568 // for ParseLangArgs). 4569 GenerateLangArgs(*LangOpts, Args, SA, T); 4570 } 4571 4572 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4573 &*LangOpts); 4574 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4575 CodeGenOpts); 4576 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4577 FrontendOpts.ProgramAction); 4578 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4579 } 4580 4581 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4582 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4583 DiagnosticsEngine &Diags) { 4584 return createVFSFromCompilerInvocation(CI, Diags, 4585 llvm::vfs::getRealFileSystem()); 4586 } 4587 4588 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4589 clang::createVFSFromCompilerInvocation( 4590 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4591 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4592 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4593 return BaseFS; 4594 4595 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4596 // earlier vfs files are on the bottom 4597 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4598 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4599 Result->getBufferForFile(File); 4600 if (!Buffer) { 4601 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4602 continue; 4603 } 4604 4605 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4606 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4607 /*DiagContext*/ nullptr, Result); 4608 if (!FS) { 4609 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4610 continue; 4611 } 4612 4613 Result = FS; 4614 } 4615 return Result; 4616 } 4617