1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <memory> 98 #include <string> 99 #include <tuple> 100 #include <type_traits> 101 #include <utility> 102 #include <vector> 103 104 using namespace clang; 105 using namespace driver; 106 using namespace options; 107 using namespace llvm::opt; 108 109 //===----------------------------------------------------------------------===// 110 // Initialization. 111 //===----------------------------------------------------------------------===// 112 113 CompilerInvocationRefBase::CompilerInvocationRefBase() 114 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 115 DiagnosticOpts(new DiagnosticOptions()), 116 HeaderSearchOpts(new HeaderSearchOptions()), 117 PreprocessorOpts(new PreprocessorOptions()), 118 AnalyzerOpts(new AnalyzerOptions()) {} 119 120 CompilerInvocationRefBase::CompilerInvocationRefBase( 121 const CompilerInvocationRefBase &X) 122 : LangOpts(new LangOptions(*X.getLangOpts())), 123 TargetOpts(new TargetOptions(X.getTargetOpts())), 124 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 125 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 126 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 127 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase( 130 CompilerInvocationRefBase &&X) = default; 131 132 CompilerInvocationRefBase & 133 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 134 LangOpts.swap(X.LangOpts); 135 TargetOpts.swap(X.TargetOpts); 136 DiagnosticOpts.swap(X.DiagnosticOpts); 137 HeaderSearchOpts.swap(X.HeaderSearchOpts); 138 PreprocessorOpts.swap(X.PreprocessorOpts); 139 AnalyzerOpts.swap(X.AnalyzerOpts); 140 return *this; 141 } 142 143 CompilerInvocationRefBase & 144 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 145 146 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 147 148 //===----------------------------------------------------------------------===// 149 // Normalizers 150 //===----------------------------------------------------------------------===// 151 152 #define SIMPLE_ENUM_VALUE_TABLE 153 #include "clang/Driver/Options.inc" 154 #undef SIMPLE_ENUM_VALUE_TABLE 155 156 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 157 unsigned TableIndex, 158 const ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 if (Args.hasArg(Opt)) 161 return true; 162 return None; 163 } 164 165 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 166 const ArgList &Args, 167 DiagnosticsEngine &) { 168 if (Args.hasArg(Opt)) 169 return false; 170 return None; 171 } 172 173 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 174 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 175 /// unnecessary template instantiations and just ignore it with a variadic 176 /// argument. 177 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 178 const char *Spelling, 179 CompilerInvocation::StringAllocator, 180 Option::OptionClass, unsigned, /*T*/...) { 181 Args.push_back(Spelling); 182 } 183 184 template <typename T> static constexpr bool is_uint64_t_convertible() { 185 return !std::is_same<T, uint64_t>::value && 186 llvm::is_integral_or_enum<T>::value; 187 } 188 189 template <typename T, 190 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 191 static auto makeFlagToValueNormalizer(T Value) { 192 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 193 DiagnosticsEngine &) -> Optional<T> { 194 if (Args.hasArg(Opt)) 195 return Value; 196 return None; 197 }; 198 } 199 200 template <typename T, 201 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 202 static auto makeFlagToValueNormalizer(T Value) { 203 return makeFlagToValueNormalizer(uint64_t(Value)); 204 } 205 206 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 207 OptSpecifier OtherOpt) { 208 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 209 const ArgList &Args, 210 DiagnosticsEngine &) -> Optional<bool> { 211 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 212 return A->getOption().matches(Opt) ? Value : OtherValue; 213 } 214 return None; 215 }; 216 } 217 218 static auto makeBooleanOptionDenormalizer(bool Value) { 219 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 220 CompilerInvocation::StringAllocator, Option::OptionClass, 221 unsigned, bool KeyPath) { 222 if (KeyPath == Value) 223 Args.push_back(Spelling); 224 }; 225 } 226 227 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 228 const char *Spelling, 229 CompilerInvocation::StringAllocator SA, 230 Option::OptionClass OptClass, unsigned, 231 const Twine &Value) { 232 switch (OptClass) { 233 case Option::SeparateClass: 234 case Option::JoinedOrSeparateClass: 235 case Option::JoinedAndSeparateClass: 236 Args.push_back(Spelling); 237 Args.push_back(SA(Value)); 238 break; 239 case Option::JoinedClass: 240 case Option::CommaJoinedClass: 241 Args.push_back(SA(Twine(Spelling) + Value)); 242 break; 243 default: 244 llvm_unreachable("Cannot denormalize an option with option class " 245 "incompatible with string denormalization."); 246 } 247 } 248 249 template <typename T> 250 static void 251 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 252 CompilerInvocation::StringAllocator SA, 253 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 254 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 255 } 256 257 static Optional<SimpleEnumValue> 258 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 259 for (int I = 0, E = Table.Size; I != E; ++I) 260 if (Name == Table.Table[I].Name) 261 return Table.Table[I]; 262 263 return None; 264 } 265 266 static Optional<SimpleEnumValue> 267 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 268 for (int I = 0, E = Table.Size; I != E; ++I) 269 if (Value == Table.Table[I].Value) 270 return Table.Table[I]; 271 272 return None; 273 } 274 275 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 276 unsigned TableIndex, 277 const ArgList &Args, 278 DiagnosticsEngine &Diags) { 279 assert(TableIndex < SimpleEnumValueTablesSize); 280 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 281 282 auto *Arg = Args.getLastArg(Opt); 283 if (!Arg) 284 return None; 285 286 StringRef ArgValue = Arg->getValue(); 287 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 288 return MaybeEnumVal->Value; 289 290 Diags.Report(diag::err_drv_invalid_value) 291 << Arg->getAsString(Args) << ArgValue; 292 return None; 293 } 294 295 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 296 const char *Spelling, 297 CompilerInvocation::StringAllocator SA, 298 Option::OptionClass OptClass, 299 unsigned TableIndex, unsigned Value) { 300 assert(TableIndex < SimpleEnumValueTablesSize); 301 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 302 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 303 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 304 MaybeEnumVal->Name); 305 } else { 306 llvm_unreachable("The simple enum value was not correctly defined in " 307 "the tablegen option description"); 308 } 309 } 310 311 template <typename T> 312 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 313 const char *Spelling, 314 CompilerInvocation::StringAllocator SA, 315 Option::OptionClass OptClass, 316 unsigned TableIndex, T Value) { 317 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 318 static_cast<unsigned>(Value)); 319 } 320 321 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 322 const ArgList &Args, 323 DiagnosticsEngine &Diags) { 324 auto *Arg = Args.getLastArg(Opt); 325 if (!Arg) 326 return None; 327 return std::string(Arg->getValue()); 328 } 329 330 template <typename IntTy> 331 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 332 const ArgList &Args, 333 DiagnosticsEngine &Diags) { 334 auto *Arg = Args.getLastArg(Opt); 335 if (!Arg) 336 return None; 337 IntTy Res; 338 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 339 Diags.Report(diag::err_drv_invalid_int_value) 340 << Arg->getAsString(Args) << Arg->getValue(); 341 return None; 342 } 343 return Res; 344 } 345 346 static Optional<std::vector<std::string>> 347 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 348 DiagnosticsEngine &) { 349 return Args.getAllArgValues(Opt); 350 } 351 352 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 353 const char *Spelling, 354 CompilerInvocation::StringAllocator SA, 355 Option::OptionClass OptClass, 356 unsigned TableIndex, 357 const std::vector<std::string> &Values) { 358 switch (OptClass) { 359 case Option::CommaJoinedClass: { 360 std::string CommaJoinedValue; 361 if (!Values.empty()) { 362 CommaJoinedValue.append(Values.front()); 363 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 364 CommaJoinedValue.append(","); 365 CommaJoinedValue.append(Value); 366 } 367 } 368 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 369 TableIndex, CommaJoinedValue); 370 break; 371 } 372 case Option::JoinedClass: 373 case Option::SeparateClass: 374 case Option::JoinedOrSeparateClass: 375 for (const std::string &Value : Values) 376 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 377 break; 378 default: 379 llvm_unreachable("Cannot denormalize an option with option class " 380 "incompatible with string vector denormalization."); 381 } 382 } 383 384 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 385 const ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 auto *Arg = Args.getLastArg(Opt); 388 if (!Arg) 389 return None; 390 return llvm::Triple::normalize(Arg->getValue()); 391 } 392 393 template <typename T, typename U> 394 static T mergeForwardValue(T KeyPath, U Value) { 395 return static_cast<T>(Value); 396 } 397 398 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 399 return KeyPath | Value; 400 } 401 402 template <typename T> static T extractForwardValue(T KeyPath) { 403 return KeyPath; 404 } 405 406 template <typename T, typename U, U Value> 407 static T extractMaskValue(T KeyPath) { 408 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 409 } 410 411 #define PARSE_OPTION_WITH_MARSHALLING( \ 412 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 413 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 414 if ((FLAGS)&options::CC1Option) { \ 415 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 416 if (IMPLIED_CHECK) \ 417 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 418 if (SHOULD_PARSE) \ 419 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 420 KEYPATH = \ 421 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 422 } 423 424 // Capture the extracted value as a lambda argument to avoid potential issues 425 // with lifetime extension of the reference. 426 #define GENERATE_OPTION_WITH_MARSHALLING( \ 427 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 428 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 429 TABLE_INDEX) \ 430 if ((FLAGS)&options::CC1Option) { \ 431 [&](const auto &Extracted) { \ 432 if (ALWAYS_EMIT || \ 433 (Extracted != \ 434 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 435 : (DEFAULT_VALUE)))) \ 436 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 437 TABLE_INDEX, Extracted); \ 438 }(EXTRACTOR(KEYPATH)); \ 439 } 440 441 static const StringRef GetInputKindName(InputKind IK); 442 443 static bool FixupInvocation(CompilerInvocation &Invocation, 444 DiagnosticsEngine &Diags, const ArgList &Args, 445 InputKind IK) { 446 unsigned NumErrorsBefore = Diags.getNumErrors(); 447 448 LangOptions &LangOpts = *Invocation.getLangOpts(); 449 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 450 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 451 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 452 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 453 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 454 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 455 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 456 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 457 if (FrontendOpts.ShowStats) 458 CodeGenOpts.ClearASTBeforeBackend = false; 459 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 460 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 461 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 462 LangOpts.CurrentModule = LangOpts.ModuleName; 463 464 llvm::Triple T(TargetOpts.Triple); 465 llvm::Triple::ArchType Arch = T.getArch(); 466 467 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 468 469 if (LangOpts.getExceptionHandling() != 470 LangOptions::ExceptionHandlingKind::None && 471 T.isWindowsMSVCEnvironment()) 472 Diags.Report(diag::err_fe_invalid_exception_model) 473 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 474 475 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 476 Diags.Report(diag::warn_c_kext); 477 478 if (Args.hasArg(OPT_fconcepts_ts)) 479 Diags.Report(diag::warn_fe_concepts_ts_flag); 480 481 if (LangOpts.NewAlignOverride && 482 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 483 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 484 Diags.Report(diag::err_fe_invalid_alignment) 485 << A->getAsString(Args) << A->getValue(); 486 LangOpts.NewAlignOverride = 0; 487 } 488 489 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 490 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 491 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 492 << "-fsycl-is-host"; 493 494 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 495 Diags.Report(diag::err_drv_argument_not_allowed_with) 496 << "-fgnu89-inline" << GetInputKindName(IK); 497 498 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 499 Diags.Report(diag::warn_ignored_hip_only_option) 500 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 501 502 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 503 Diags.Report(diag::warn_ignored_hip_only_option) 504 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 505 506 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 507 // This option should be deprecated for CL > 1.0 because 508 // this option was added for compatibility with OpenCL 1.0. 509 if (Args.getLastArg(OPT_cl_strict_aliasing) && 510 (LangOpts.getOpenCLCompatibleVersion() > 100)) 511 Diags.Report(diag::warn_option_invalid_ocl_version) 512 << LangOpts.getOpenCLVersionString() 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 in assert builds. This can be overwritten at run-time via the 616 // "-round-trip-args" and "-no-round-trip-args" command line flags. 617 // During round-trip, the command line arguments are parsed into a dummy 618 // instance of CompilerInvocation which is used to generate the command line 619 // arguments again. The real CompilerInvocation instance is then created by 620 // parsing the generated arguments, not the original ones. 621 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 622 CompilerInvocation &RealInvocation, 623 CompilerInvocation &DummyInvocation, 624 ArrayRef<const char *> CommandLineArgs, 625 DiagnosticsEngine &Diags, const char *Argv0) { 626 #ifndef NDEBUG 627 bool DoRoundTripDefault = true; 628 #else 629 bool DoRoundTripDefault = false; 630 #endif 631 632 bool DoRoundTrip = DoRoundTripDefault; 633 for (const auto *Arg : CommandLineArgs) { 634 if (Arg == StringRef("-round-trip-args")) 635 DoRoundTrip = true; 636 if (Arg == StringRef("-no-round-trip-args")) 637 DoRoundTrip = false; 638 } 639 640 // If round-trip was not requested, simply run the parser with the real 641 // invocation diagnostics. 642 if (!DoRoundTrip) 643 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 644 645 // Serializes quoted (and potentially escaped) arguments. 646 auto SerializeArgs = [](ArrayRef<const char *> Args) { 647 std::string Buffer; 648 llvm::raw_string_ostream OS(Buffer); 649 for (const char *Arg : Args) { 650 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 651 OS << ' '; 652 } 653 OS.flush(); 654 return Buffer; 655 }; 656 657 // Setup a dummy DiagnosticsEngine. 658 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 659 DummyDiags.setClient(new TextDiagnosticBuffer()); 660 661 // Run the first parse on the original arguments with the dummy invocation and 662 // diagnostics. 663 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 664 DummyDiags.getNumWarnings() != 0) { 665 // If the first parse did not succeed, it must be user mistake (invalid 666 // command line arguments). We won't be able to generate arguments that 667 // would reproduce the same result. Let's fail again with the real 668 // invocation and diagnostics, so all side-effects of parsing are visible. 669 unsigned NumWarningsBefore = Diags.getNumWarnings(); 670 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 671 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 672 return Success; 673 674 // Parse with original options and diagnostics succeeded even though it 675 // shouldn't have. Something is off. 676 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 677 Diags.Report(diag::note_cc1_round_trip_original) 678 << SerializeArgs(CommandLineArgs); 679 return false; 680 } 681 682 // Setup string allocator. 683 llvm::BumpPtrAllocator Alloc; 684 llvm::StringSaver StringPool(Alloc); 685 auto SA = [&StringPool](const Twine &Arg) { 686 return StringPool.save(Arg).data(); 687 }; 688 689 // Generate arguments from the dummy invocation. If Generate is the 690 // inverse of Parse, the newly generated arguments must have the same 691 // semantics as the original. 692 SmallVector<const char *> GeneratedArgs1; 693 Generate(DummyInvocation, GeneratedArgs1, SA); 694 695 // Run the second parse, now on the generated arguments, and with the real 696 // invocation and diagnostics. The result is what we will end up using for the 697 // rest of compilation, so if Generate is not inverse of Parse, something down 698 // the line will break. 699 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 700 701 // The first parse on original arguments succeeded, but second parse of 702 // generated arguments failed. Something must be wrong with the generator. 703 if (!Success2) { 704 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 705 Diags.Report(diag::note_cc1_round_trip_generated) 706 << 1 << SerializeArgs(GeneratedArgs1); 707 return false; 708 } 709 710 // Generate arguments again, this time from the options we will end up using 711 // for the rest of the compilation. 712 SmallVector<const char *> GeneratedArgs2; 713 Generate(RealInvocation, GeneratedArgs2, SA); 714 715 // Compares two lists of generated arguments. 716 auto Equal = [](const ArrayRef<const char *> A, 717 const ArrayRef<const char *> B) { 718 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 719 [](const char *AElem, const char *BElem) { 720 return StringRef(AElem) == StringRef(BElem); 721 }); 722 }; 723 724 // If we generated different arguments from what we assume are two 725 // semantically equivalent CompilerInvocations, the Generate function may 726 // be non-deterministic. 727 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 728 Diags.Report(diag::err_cc1_round_trip_mismatch); 729 Diags.Report(diag::note_cc1_round_trip_generated) 730 << 1 << SerializeArgs(GeneratedArgs1); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 2 << SerializeArgs(GeneratedArgs2); 733 return false; 734 } 735 736 Diags.Report(diag::remark_cc1_round_trip_generated) 737 << 1 << SerializeArgs(GeneratedArgs1); 738 Diags.Report(diag::remark_cc1_round_trip_generated) 739 << 2 << SerializeArgs(GeneratedArgs2); 740 741 return Success2; 742 } 743 744 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 745 OptSpecifier GroupWithValue, 746 std::vector<std::string> &Diagnostics) { 747 for (auto *A : Args.filtered(Group)) { 748 if (A->getOption().getKind() == Option::FlagClass) { 749 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 750 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 751 Diagnostics.push_back( 752 std::string(A->getOption().getName().drop_front(1))); 753 } else if (A->getOption().matches(GroupWithValue)) { 754 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 755 // group. Add only the group name to the diagnostics. 756 Diagnostics.push_back( 757 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 758 } else { 759 // Otherwise, add its value (for OPT_W_Joined and similar). 760 Diagnostics.push_back(A->getValue()); 761 } 762 } 763 } 764 765 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 766 // it won't verify the input. 767 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 768 DiagnosticsEngine *Diags); 769 770 static void getAllNoBuiltinFuncValues(ArgList &Args, 771 std::vector<std::string> &Funcs) { 772 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 773 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 774 return Builtin::Context::isBuiltinFunc(FuncName); 775 }); 776 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 777 } 778 779 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 780 SmallVectorImpl<const char *> &Args, 781 CompilerInvocation::StringAllocator SA) { 782 const AnalyzerOptions *AnalyzerOpts = &Opts; 783 784 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 785 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 786 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 787 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 788 MERGER, EXTRACTOR, TABLE_INDEX) \ 789 GENERATE_OPTION_WITH_MARSHALLING( \ 790 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 791 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 792 #include "clang/Driver/Options.inc" 793 #undef ANALYZER_OPTION_WITH_MARSHALLING 794 795 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 796 switch (Opts.AnalysisStoreOpt) { 797 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 798 case NAME##Model: \ 799 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 800 break; 801 #include "clang/StaticAnalyzer/Core/Analyses.def" 802 default: 803 llvm_unreachable("Tried to generate unknown analysis store."); 804 } 805 } 806 807 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 808 switch (Opts.AnalysisConstraintsOpt) { 809 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 810 case NAME##Model: \ 811 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 812 break; 813 #include "clang/StaticAnalyzer/Core/Analyses.def" 814 default: 815 llvm_unreachable("Tried to generate unknown analysis constraint."); 816 } 817 } 818 819 if (Opts.AnalysisDiagOpt != PD_HTML) { 820 switch (Opts.AnalysisDiagOpt) { 821 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 822 case PD_##NAME: \ 823 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 824 break; 825 #include "clang/StaticAnalyzer/Core/Analyses.def" 826 default: 827 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 828 } 829 } 830 831 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 832 switch (Opts.AnalysisPurgeOpt) { 833 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 834 case NAME: \ 835 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 836 break; 837 #include "clang/StaticAnalyzer/Core/Analyses.def" 838 default: 839 llvm_unreachable("Tried to generate unknown analysis purge mode."); 840 } 841 } 842 843 if (Opts.InliningMode != NoRedundancy) { 844 switch (Opts.InliningMode) { 845 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 846 case NAME: \ 847 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 848 break; 849 #include "clang/StaticAnalyzer/Core/Analyses.def" 850 default: 851 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 852 } 853 } 854 855 for (const auto &CP : Opts.CheckersAndPackages) { 856 OptSpecifier Opt = 857 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 858 GenerateArg(Args, Opt, CP.first, SA); 859 } 860 861 AnalyzerOptions ConfigOpts; 862 parseAnalyzerConfigs(ConfigOpts, nullptr); 863 864 for (const auto &C : Opts.Config) { 865 // Don't generate anything that came from parseAnalyzerConfigs. It would be 866 // redundant and may not be valid on the command line. 867 auto Entry = ConfigOpts.Config.find(C.getKey()); 868 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 869 continue; 870 871 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 872 } 873 874 // Nothing to generate for FullCompilerInvocation. 875 } 876 877 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 878 DiagnosticsEngine &Diags) { 879 unsigned NumErrorsBefore = Diags.getNumErrors(); 880 881 AnalyzerOptions *AnalyzerOpts = &Opts; 882 883 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 884 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 885 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 886 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 887 MERGER, EXTRACTOR, TABLE_INDEX) \ 888 PARSE_OPTION_WITH_MARSHALLING( \ 889 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 890 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 891 #include "clang/Driver/Options.inc" 892 #undef ANALYZER_OPTION_WITH_MARSHALLING 893 894 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 895 StringRef Name = A->getValue(); 896 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 897 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 898 .Case(CMDFLAG, NAME##Model) 899 #include "clang/StaticAnalyzer/Core/Analyses.def" 900 .Default(NumStores); 901 if (Value == NumStores) { 902 Diags.Report(diag::err_drv_invalid_value) 903 << A->getAsString(Args) << Name; 904 } else { 905 Opts.AnalysisStoreOpt = Value; 906 } 907 } 908 909 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 910 StringRef Name = A->getValue(); 911 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 912 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 913 .Case(CMDFLAG, NAME##Model) 914 #include "clang/StaticAnalyzer/Core/Analyses.def" 915 .Default(NumConstraints); 916 if (Value == NumConstraints) { 917 Diags.Report(diag::err_drv_invalid_value) 918 << A->getAsString(Args) << Name; 919 } else { 920 Opts.AnalysisConstraintsOpt = Value; 921 } 922 } 923 924 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 925 StringRef Name = A->getValue(); 926 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 927 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 928 .Case(CMDFLAG, PD_##NAME) 929 #include "clang/StaticAnalyzer/Core/Analyses.def" 930 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 931 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 932 Diags.Report(diag::err_drv_invalid_value) 933 << A->getAsString(Args) << Name; 934 } else { 935 Opts.AnalysisDiagOpt = Value; 936 } 937 } 938 939 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 940 StringRef Name = A->getValue(); 941 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 942 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 943 .Case(CMDFLAG, NAME) 944 #include "clang/StaticAnalyzer/Core/Analyses.def" 945 .Default(NumPurgeModes); 946 if (Value == NumPurgeModes) { 947 Diags.Report(diag::err_drv_invalid_value) 948 << A->getAsString(Args) << Name; 949 } else { 950 Opts.AnalysisPurgeOpt = Value; 951 } 952 } 953 954 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 955 StringRef Name = A->getValue(); 956 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 957 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 958 .Case(CMDFLAG, NAME) 959 #include "clang/StaticAnalyzer/Core/Analyses.def" 960 .Default(NumInliningModes); 961 if (Value == NumInliningModes) { 962 Diags.Report(diag::err_drv_invalid_value) 963 << A->getAsString(Args) << Name; 964 } else { 965 Opts.InliningMode = Value; 966 } 967 } 968 969 Opts.CheckersAndPackages.clear(); 970 for (const Arg *A : 971 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 972 A->claim(); 973 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 974 // We can have a list of comma separated checker names, e.g: 975 // '-analyzer-checker=cocoa,unix' 976 StringRef CheckerAndPackageList = A->getValue(); 977 SmallVector<StringRef, 16> CheckersAndPackages; 978 CheckerAndPackageList.split(CheckersAndPackages, ","); 979 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 980 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 981 IsEnabled); 982 } 983 984 // Go through the analyzer configuration options. 985 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 986 987 // We can have a list of comma separated config names, e.g: 988 // '-analyzer-config key1=val1,key2=val2' 989 StringRef configList = A->getValue(); 990 SmallVector<StringRef, 4> configVals; 991 configList.split(configVals, ","); 992 for (const auto &configVal : configVals) { 993 StringRef key, val; 994 std::tie(key, val) = configVal.split("="); 995 if (val.empty()) { 996 Diags.Report(SourceLocation(), 997 diag::err_analyzer_config_no_value) << configVal; 998 break; 999 } 1000 if (val.contains('=')) { 1001 Diags.Report(SourceLocation(), 1002 diag::err_analyzer_config_multiple_values) 1003 << configVal; 1004 break; 1005 } 1006 1007 // TODO: Check checker options too, possibly in CheckerRegistry. 1008 // Leave unknown non-checker configs unclaimed. 1009 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1010 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1011 Diags.Report(diag::err_analyzer_config_unknown) << key; 1012 continue; 1013 } 1014 1015 A->claim(); 1016 Opts.Config[key] = std::string(val); 1017 } 1018 } 1019 1020 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1021 parseAnalyzerConfigs(Opts, &Diags); 1022 else 1023 parseAnalyzerConfigs(Opts, nullptr); 1024 1025 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1026 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1027 if (i != 0) 1028 os << " "; 1029 os << Args.getArgString(i); 1030 } 1031 os.flush(); 1032 1033 return Diags.getNumErrors() == NumErrorsBefore; 1034 } 1035 1036 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1037 StringRef OptionName, StringRef DefaultVal) { 1038 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1039 } 1040 1041 static void initOption(AnalyzerOptions::ConfigTable &Config, 1042 DiagnosticsEngine *Diags, 1043 StringRef &OptionField, StringRef Name, 1044 StringRef DefaultVal) { 1045 // String options may be known to invalid (e.g. if the expected string is a 1046 // file name, but the file does not exist), those will have to be checked in 1047 // parseConfigs. 1048 OptionField = getStringOption(Config, Name, DefaultVal); 1049 } 1050 1051 static void initOption(AnalyzerOptions::ConfigTable &Config, 1052 DiagnosticsEngine *Diags, 1053 bool &OptionField, StringRef Name, bool DefaultVal) { 1054 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1055 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1056 .Case("true", true) 1057 .Case("false", false) 1058 .Default(None); 1059 1060 if (!PossiblyInvalidVal) { 1061 if (Diags) 1062 Diags->Report(diag::err_analyzer_config_invalid_input) 1063 << Name << "a boolean"; 1064 else 1065 OptionField = DefaultVal; 1066 } else 1067 OptionField = PossiblyInvalidVal.getValue(); 1068 } 1069 1070 static void initOption(AnalyzerOptions::ConfigTable &Config, 1071 DiagnosticsEngine *Diags, 1072 unsigned &OptionField, StringRef Name, 1073 unsigned DefaultVal) { 1074 1075 OptionField = DefaultVal; 1076 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1077 .getAsInteger(0, OptionField); 1078 if (Diags && HasFailed) 1079 Diags->Report(diag::err_analyzer_config_invalid_input) 1080 << Name << "an unsigned"; 1081 } 1082 1083 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1084 DiagnosticsEngine *Diags) { 1085 // TODO: There's no need to store the entire configtable, it'd be plenty 1086 // enough tostore checker options. 1087 1088 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1089 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1090 1091 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1092 SHALLOW_VAL, DEEP_VAL) \ 1093 switch (AnOpts.getUserMode()) { \ 1094 case UMK_Shallow: \ 1095 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1096 break; \ 1097 case UMK_Deep: \ 1098 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1099 break; \ 1100 } \ 1101 1102 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1103 #undef ANALYZER_OPTION 1104 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1105 1106 // At this point, AnalyzerOptions is configured. Let's validate some options. 1107 1108 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1109 // The current approach only validates the registered checkers which does not 1110 // contain the runtime enabled checkers and optimally we would validate both. 1111 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1112 std::vector<StringRef> Checkers = 1113 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1114 std::vector<StringRef> Packages = 1115 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1116 1117 SmallVector<StringRef, 16> CheckersAndPackages; 1118 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1119 1120 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1121 if (Diags) { 1122 bool IsChecker = CheckerOrPackage.contains('.'); 1123 bool IsValidName = IsChecker 1124 ? llvm::is_contained(Checkers, CheckerOrPackage) 1125 : llvm::is_contained(Packages, CheckerOrPackage); 1126 1127 if (!IsValidName) 1128 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1129 << CheckerOrPackage; 1130 } 1131 1132 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1133 } 1134 } 1135 1136 if (!Diags) 1137 return; 1138 1139 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1140 Diags->Report(diag::err_analyzer_config_invalid_input) 1141 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1142 1143 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1144 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1145 << "a filename"; 1146 1147 if (!AnOpts.ModelPath.empty() && 1148 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1149 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1150 << "a filename"; 1151 } 1152 1153 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1154 static void 1155 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1156 CompilerInvocation::StringAllocator SA, 1157 OptSpecifier OptEQ, StringRef Name, 1158 const CodeGenOptions::OptRemark &Remark) { 1159 if (Remark.hasValidPattern()) { 1160 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1161 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1162 GenerateArg(Args, OPT_R_Joined, Name, SA); 1163 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1164 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1165 } 1166 } 1167 1168 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1169 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1170 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1171 static CodeGenOptions::OptRemark 1172 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1173 OptSpecifier OptEQ, StringRef Name) { 1174 CodeGenOptions::OptRemark Result; 1175 1176 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1177 StringRef Pattern) { 1178 Result.Pattern = Pattern.str(); 1179 1180 std::string RegexError; 1181 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1182 if (!Result.Regex->isValid(RegexError)) { 1183 Diags.Report(diag::err_drv_optimization_remark_pattern) 1184 << RegexError << A->getAsString(Args); 1185 return false; 1186 } 1187 1188 return true; 1189 }; 1190 1191 for (Arg *A : Args) { 1192 if (A->getOption().matches(OPT_R_Joined)) { 1193 StringRef Value = A->getValue(); 1194 1195 if (Value == Name) 1196 Result.Kind = CodeGenOptions::RK_Enabled; 1197 else if (Value == "everything") 1198 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1199 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1200 Result.Kind = CodeGenOptions::RK_Disabled; 1201 else if (Value == "no-everything") 1202 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1203 else 1204 continue; 1205 1206 if (Result.Kind == CodeGenOptions::RK_Disabled || 1207 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1208 Result.Pattern = ""; 1209 Result.Regex = nullptr; 1210 } else { 1211 InitializeResultPattern(A, ".*"); 1212 } 1213 } else if (A->getOption().matches(OptEQ)) { 1214 Result.Kind = CodeGenOptions::RK_WithPattern; 1215 if (!InitializeResultPattern(A, A->getValue())) 1216 return CodeGenOptions::OptRemark(); 1217 } 1218 } 1219 1220 return Result; 1221 } 1222 1223 static bool parseDiagnosticLevelMask(StringRef FlagName, 1224 const std::vector<std::string> &Levels, 1225 DiagnosticsEngine &Diags, 1226 DiagnosticLevelMask &M) { 1227 bool Success = true; 1228 for (const auto &Level : Levels) { 1229 DiagnosticLevelMask const PM = 1230 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1231 .Case("note", DiagnosticLevelMask::Note) 1232 .Case("remark", DiagnosticLevelMask::Remark) 1233 .Case("warning", DiagnosticLevelMask::Warning) 1234 .Case("error", DiagnosticLevelMask::Error) 1235 .Default(DiagnosticLevelMask::None); 1236 if (PM == DiagnosticLevelMask::None) { 1237 Success = false; 1238 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1239 } 1240 M = M | PM; 1241 } 1242 return Success; 1243 } 1244 1245 static void parseSanitizerKinds(StringRef FlagName, 1246 const std::vector<std::string> &Sanitizers, 1247 DiagnosticsEngine &Diags, SanitizerSet &S) { 1248 for (const auto &Sanitizer : Sanitizers) { 1249 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1250 if (K == SanitizerMask()) 1251 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1252 else 1253 S.set(K, true); 1254 } 1255 } 1256 1257 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1258 SmallVector<StringRef, 4> Values; 1259 serializeSanitizerSet(S, Values); 1260 return Values; 1261 } 1262 1263 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1264 ArgList &Args, DiagnosticsEngine &D, 1265 XRayInstrSet &S) { 1266 llvm::SmallVector<StringRef, 2> BundleParts; 1267 llvm::SplitString(Bundle, BundleParts, ","); 1268 for (const auto &B : BundleParts) { 1269 auto Mask = parseXRayInstrValue(B); 1270 if (Mask == XRayInstrKind::None) 1271 if (B != "none") 1272 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1273 else 1274 S.Mask = Mask; 1275 else if (Mask == XRayInstrKind::All) 1276 S.Mask = Mask; 1277 else 1278 S.set(Mask, true); 1279 } 1280 } 1281 1282 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1283 llvm::SmallVector<StringRef, 2> BundleParts; 1284 serializeXRayInstrValue(S, BundleParts); 1285 std::string Buffer; 1286 llvm::raw_string_ostream OS(Buffer); 1287 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1288 return OS.str(); 1289 } 1290 1291 // Set the profile kind using fprofile-instrument-use-path. 1292 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1293 const Twine &ProfileName) { 1294 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1295 // In error, return silently and let Clang PGOUse report the error message. 1296 if (auto E = ReaderOrErr.takeError()) { 1297 llvm::consumeError(std::move(E)); 1298 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1299 return; 1300 } 1301 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1302 std::move(ReaderOrErr.get()); 1303 if (PGOReader->isIRLevelProfile()) { 1304 if (PGOReader->hasCSIRLevelProfile()) 1305 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1306 else 1307 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1308 } else 1309 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1310 } 1311 1312 void CompilerInvocation::GenerateCodeGenArgs( 1313 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1314 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1315 const LangOptions *LangOpts) { 1316 const CodeGenOptions &CodeGenOpts = Opts; 1317 1318 if (Opts.OptimizationLevel == 0) 1319 GenerateArg(Args, OPT_O0, SA); 1320 else 1321 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1322 1323 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1324 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1325 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1326 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1327 MERGER, EXTRACTOR, TABLE_INDEX) \ 1328 GENERATE_OPTION_WITH_MARSHALLING( \ 1329 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1330 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1331 #include "clang/Driver/Options.inc" 1332 #undef CODEGEN_OPTION_WITH_MARSHALLING 1333 1334 if (Opts.OptimizationLevel > 0) { 1335 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1336 GenerateArg(Args, OPT_finline_functions, SA); 1337 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1338 GenerateArg(Args, OPT_finline_hint_functions, SA); 1339 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1340 GenerateArg(Args, OPT_fno_inline, SA); 1341 } 1342 1343 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1344 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1345 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1346 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1347 1348 Optional<StringRef> DebugInfoVal; 1349 switch (Opts.DebugInfo) { 1350 case codegenoptions::DebugLineTablesOnly: 1351 DebugInfoVal = "line-tables-only"; 1352 break; 1353 case codegenoptions::DebugDirectivesOnly: 1354 DebugInfoVal = "line-directives-only"; 1355 break; 1356 case codegenoptions::DebugInfoConstructor: 1357 DebugInfoVal = "constructor"; 1358 break; 1359 case codegenoptions::LimitedDebugInfo: 1360 DebugInfoVal = "limited"; 1361 break; 1362 case codegenoptions::FullDebugInfo: 1363 DebugInfoVal = "standalone"; 1364 break; 1365 case codegenoptions::UnusedTypeInfo: 1366 DebugInfoVal = "unused-types"; 1367 break; 1368 case codegenoptions::NoDebugInfo: // default value 1369 DebugInfoVal = None; 1370 break; 1371 case codegenoptions::LocTrackingOnly: // implied value 1372 DebugInfoVal = None; 1373 break; 1374 } 1375 if (DebugInfoVal) 1376 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1377 1378 for (const auto &Prefix : Opts.DebugPrefixMap) 1379 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1380 Prefix.first + "=" + Prefix.second, SA); 1381 1382 for (const auto &Prefix : Opts.CoveragePrefixMap) 1383 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1384 Prefix.first + "=" + Prefix.second, SA); 1385 1386 if (Opts.NewStructPathTBAA) 1387 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1388 1389 if (Opts.OptimizeSize == 1) 1390 GenerateArg(Args, OPT_O, "s", SA); 1391 else if (Opts.OptimizeSize == 2) 1392 GenerateArg(Args, OPT_O, "z", SA); 1393 1394 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1395 // -ffreestanding. We'll consider that when generating them. 1396 1397 // NoBuiltinFuncs are generated by LangOptions. 1398 1399 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1400 GenerateArg(Args, OPT_funroll_loops, SA); 1401 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1402 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1403 1404 if (!Opts.BinutilsVersion.empty()) 1405 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1406 1407 if (Opts.DebugNameTable == 1408 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1409 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1410 else if (Opts.DebugNameTable == 1411 static_cast<unsigned>( 1412 llvm::DICompileUnit::DebugNameTableKind::Default)) 1413 GenerateArg(Args, OPT_gpubnames, SA); 1414 1415 auto TNK = Opts.getDebugSimpleTemplateNames(); 1416 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1417 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1418 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1419 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1420 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1421 } 1422 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1423 // it or PGOUseInstrumentor. 1424 1425 if (Opts.TimePasses) { 1426 if (Opts.TimePassesPerRun) 1427 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1428 else 1429 GenerateArg(Args, OPT_ftime_report, SA); 1430 } 1431 1432 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1433 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1434 1435 if (Opts.PrepareForThinLTO) 1436 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1437 1438 if (!Opts.ThinLTOIndexFile.empty()) 1439 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1440 1441 if (Opts.SaveTempsFilePrefix == OutputFile) 1442 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1443 1444 StringRef MemProfileBasename("memprof.profraw"); 1445 if (!Opts.MemoryProfileOutput.empty()) { 1446 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1447 GenerateArg(Args, OPT_fmemory_profile, SA); 1448 } else { 1449 size_t ArgLength = 1450 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1451 GenerateArg(Args, OPT_fmemory_profile_EQ, 1452 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1453 } 1454 } 1455 1456 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1457 GenerateArg(Args, OPT_coverage_version_EQ, 1458 StringRef(Opts.CoverageVersion, 4), SA); 1459 1460 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1461 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1462 // won't be generated.) 1463 1464 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1465 std::string InstrBundle = 1466 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1467 if (!InstrBundle.empty()) 1468 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1469 } 1470 1471 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1472 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1473 else if (Opts.CFProtectionReturn) 1474 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1475 else if (Opts.CFProtectionBranch) 1476 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1477 1478 for (const auto &F : Opts.LinkBitcodeFiles) { 1479 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1480 F.PropagateAttrs && F.Internalize; 1481 GenerateArg(Args, 1482 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1483 F.Filename, SA); 1484 } 1485 1486 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1487 // That would make it easy to generate the option only **once** if it was 1488 // explicitly set to non-default value. 1489 if (Opts.ExplicitEmulatedTLS) { 1490 GenerateArg( 1491 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1492 } 1493 1494 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1495 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1496 1497 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1498 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1499 SA); 1500 1501 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1502 OptSpecifier Opt = 1503 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1504 GenerateArg(Args, Opt, SA); 1505 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1506 OptSpecifier Opt = 1507 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1508 GenerateArg(Args, Opt, SA); 1509 } 1510 1511 if (Opts.EnableAIXExtendedAltivecABI) 1512 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1513 1514 if (!Opts.OptRecordPasses.empty()) 1515 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1516 1517 if (!Opts.OptRecordFormat.empty()) 1518 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1519 1520 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1521 Opts.OptimizationRemark); 1522 1523 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1524 Opts.OptimizationRemarkMissed); 1525 1526 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1527 Opts.OptimizationRemarkAnalysis); 1528 1529 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1530 Opts.DiagnosticsHotnessThreshold 1531 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1532 : "auto", 1533 SA); 1534 1535 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1536 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1537 1538 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1539 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1540 1541 if (!Opts.EmitVersionIdentMetadata) 1542 GenerateArg(Args, OPT_Qn, SA); 1543 1544 switch (Opts.FiniteLoops) { 1545 case CodeGenOptions::FiniteLoopsKind::Language: 1546 break; 1547 case CodeGenOptions::FiniteLoopsKind::Always: 1548 GenerateArg(Args, OPT_ffinite_loops, SA); 1549 break; 1550 case CodeGenOptions::FiniteLoopsKind::Never: 1551 GenerateArg(Args, OPT_fno_finite_loops, SA); 1552 break; 1553 } 1554 } 1555 1556 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1557 InputKind IK, 1558 DiagnosticsEngine &Diags, 1559 const llvm::Triple &T, 1560 const std::string &OutputFile, 1561 const LangOptions &LangOptsRef) { 1562 unsigned NumErrorsBefore = Diags.getNumErrors(); 1563 1564 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1565 // TODO: This could be done in Driver 1566 unsigned MaxOptLevel = 3; 1567 if (OptimizationLevel > MaxOptLevel) { 1568 // If the optimization level is not supported, fall back on the default 1569 // optimization 1570 Diags.Report(diag::warn_drv_optimization_value) 1571 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1572 OptimizationLevel = MaxOptLevel; 1573 } 1574 Opts.OptimizationLevel = OptimizationLevel; 1575 1576 // The key paths of codegen options defined in Options.td start with 1577 // "CodeGenOpts.". Let's provide the expected variable name and type. 1578 CodeGenOptions &CodeGenOpts = Opts; 1579 // Some codegen options depend on language options. Let's provide the expected 1580 // variable name and type. 1581 const LangOptions *LangOpts = &LangOptsRef; 1582 1583 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1584 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1585 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1586 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1587 MERGER, EXTRACTOR, TABLE_INDEX) \ 1588 PARSE_OPTION_WITH_MARSHALLING( \ 1589 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1590 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1591 #include "clang/Driver/Options.inc" 1592 #undef CODEGEN_OPTION_WITH_MARSHALLING 1593 1594 // At O0 we want to fully disable inlining outside of cases marked with 1595 // 'alwaysinline' that are required for correctness. 1596 Opts.setInlining((Opts.OptimizationLevel == 0) 1597 ? CodeGenOptions::OnlyAlwaysInlining 1598 : CodeGenOptions::NormalInlining); 1599 // Explicit inlining flags can disable some or all inlining even at 1600 // optimization levels above zero. 1601 if (Arg *InlineArg = Args.getLastArg( 1602 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1603 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1604 if (Opts.OptimizationLevel > 0) { 1605 const Option &InlineOpt = InlineArg->getOption(); 1606 if (InlineOpt.matches(options::OPT_finline_functions)) 1607 Opts.setInlining(CodeGenOptions::NormalInlining); 1608 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1609 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1610 else 1611 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1612 } 1613 } 1614 1615 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1616 // -fdirect-access-external-data. 1617 Opts.DirectAccessExternalData = 1618 Args.hasArg(OPT_fdirect_access_external_data) || 1619 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1620 LangOpts->PICLevel == 0); 1621 1622 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1623 unsigned Val = 1624 llvm::StringSwitch<unsigned>(A->getValue()) 1625 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1626 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1627 .Case("constructor", codegenoptions::DebugInfoConstructor) 1628 .Case("limited", codegenoptions::LimitedDebugInfo) 1629 .Case("standalone", codegenoptions::FullDebugInfo) 1630 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1631 .Default(~0U); 1632 if (Val == ~0U) 1633 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1634 << A->getValue(); 1635 else 1636 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1637 } 1638 1639 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1640 // constructor homing, and vice versa for -fno-use-ctor-homing. 1641 if (const Arg *A = 1642 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1643 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1644 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1645 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1646 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1647 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1648 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1649 } 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 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1697 StringRef Value = A->getValue(); 1698 if (Value != "simple" && Value != "mangled") 1699 Diags.Report(diag::err_drv_unsupported_option_argument) 1700 << A->getOption().getName() << A->getValue(); 1701 Opts.setDebugSimpleTemplateNames( 1702 StringRef(A->getValue()) == "simple" 1703 ? codegenoptions::DebugTemplateNamesKind::Simple 1704 : codegenoptions::DebugTemplateNamesKind::Mangled); 1705 } 1706 1707 if (!Opts.ProfileInstrumentUsePath.empty()) 1708 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1709 1710 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1711 Opts.TimePasses = true; 1712 1713 // -ftime-report= is only for new pass manager. 1714 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1715 if (Opts.LegacyPassManager) 1716 Diags.Report(diag::err_drv_argument_only_allowed_with) 1717 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1718 1719 StringRef Val = A->getValue(); 1720 if (Val == "per-pass") 1721 Opts.TimePassesPerRun = false; 1722 else if (Val == "per-pass-run") 1723 Opts.TimePassesPerRun = true; 1724 else 1725 Diags.Report(diag::err_drv_invalid_value) 1726 << A->getAsString(Args) << A->getValue(); 1727 } 1728 } 1729 1730 Opts.PrepareForLTO = false; 1731 Opts.PrepareForThinLTO = false; 1732 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1733 Opts.PrepareForLTO = true; 1734 StringRef S = A->getValue(); 1735 if (S == "thin") 1736 Opts.PrepareForThinLTO = true; 1737 else if (S != "full") 1738 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1739 } 1740 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1741 if (IK.getLanguage() != Language::LLVM_IR) 1742 Diags.Report(diag::err_drv_argument_only_allowed_with) 1743 << A->getAsString(Args) << "-x ir"; 1744 Opts.ThinLTOIndexFile = 1745 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1746 } 1747 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1748 Opts.SaveTempsFilePrefix = 1749 llvm::StringSwitch<std::string>(A->getValue()) 1750 .Case("obj", OutputFile) 1751 .Default(llvm::sys::path::filename(OutputFile).str()); 1752 1753 // The memory profile runtime appends the pid to make this name more unique. 1754 const char *MemProfileBasename = "memprof.profraw"; 1755 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1756 SmallString<128> Path( 1757 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1758 llvm::sys::path::append(Path, MemProfileBasename); 1759 Opts.MemoryProfileOutput = std::string(Path); 1760 } else if (Args.hasArg(OPT_fmemory_profile)) 1761 Opts.MemoryProfileOutput = MemProfileBasename; 1762 1763 memcpy(Opts.CoverageVersion, "408*", 4); 1764 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1765 if (Args.hasArg(OPT_coverage_version_EQ)) { 1766 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1767 if (CoverageVersion.size() != 4) { 1768 Diags.Report(diag::err_drv_invalid_value) 1769 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1770 << CoverageVersion; 1771 } else { 1772 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1773 } 1774 } 1775 } 1776 // FIXME: For backend options that are not yet recorded as function 1777 // attributes in the IR, keep track of them so we can embed them in a 1778 // separate data section and use them when building the bitcode. 1779 for (const auto &A : Args) { 1780 // Do not encode output and input. 1781 if (A->getOption().getID() == options::OPT_o || 1782 A->getOption().getID() == options::OPT_INPUT || 1783 A->getOption().getID() == options::OPT_x || 1784 A->getOption().getID() == options::OPT_fembed_bitcode || 1785 A->getOption().matches(options::OPT_W_Group)) 1786 continue; 1787 ArgStringList ASL; 1788 A->render(Args, ASL); 1789 for (const auto &arg : ASL) { 1790 StringRef ArgStr(arg); 1791 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1792 // using \00 to separate each commandline options. 1793 Opts.CmdArgs.push_back('\0'); 1794 } 1795 } 1796 1797 auto XRayInstrBundles = 1798 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1799 if (XRayInstrBundles.empty()) 1800 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1801 else 1802 for (const auto &A : XRayInstrBundles) 1803 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1804 Diags, Opts.XRayInstrumentationBundle); 1805 1806 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1807 StringRef Name = A->getValue(); 1808 if (Name == "full") { 1809 Opts.CFProtectionReturn = 1; 1810 Opts.CFProtectionBranch = 1; 1811 } else if (Name == "return") 1812 Opts.CFProtectionReturn = 1; 1813 else if (Name == "branch") 1814 Opts.CFProtectionBranch = 1; 1815 else if (Name != "none") 1816 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1817 } 1818 1819 for (auto *A : 1820 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1821 CodeGenOptions::BitcodeFileToLink F; 1822 F.Filename = A->getValue(); 1823 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1824 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1825 // When linking CUDA bitcode, propagate function attributes so that 1826 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1827 F.PropagateAttrs = true; 1828 F.Internalize = true; 1829 } 1830 Opts.LinkBitcodeFiles.push_back(F); 1831 } 1832 1833 if (Args.getLastArg(OPT_femulated_tls) || 1834 Args.getLastArg(OPT_fno_emulated_tls)) { 1835 Opts.ExplicitEmulatedTLS = true; 1836 } 1837 1838 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1839 if (T.isOSAIX()) { 1840 StringRef Name = A->getValue(); 1841 if (Name != "global-dynamic") 1842 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1843 } 1844 } 1845 1846 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1847 StringRef Val = A->getValue(); 1848 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1849 if (!Opts.FPDenormalMode.isValid()) 1850 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1851 } 1852 1853 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1854 StringRef Val = A->getValue(); 1855 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1856 if (!Opts.FP32DenormalMode.isValid()) 1857 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1858 } 1859 1860 // X86_32 has -fppc-struct-return and -freg-struct-return. 1861 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1862 if (Arg *A = 1863 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1864 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1865 // TODO: We might want to consider enabling these options on AIX in the 1866 // future. 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_fpcc_struct_return) || 1873 O.matches(OPT_maix_struct_return)) { 1874 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1875 } else { 1876 assert(O.matches(OPT_freg_struct_return) || 1877 O.matches(OPT_msvr4_struct_return)); 1878 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1879 } 1880 } 1881 1882 if (Arg *A = 1883 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1884 if (!T.isOSAIX()) 1885 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1886 << A->getSpelling() << T.str(); 1887 1888 const Option &O = A->getOption(); 1889 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1890 } 1891 1892 bool NeedLocTracking = false; 1893 1894 if (!Opts.OptRecordFile.empty()) 1895 NeedLocTracking = true; 1896 1897 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1898 Opts.OptRecordPasses = A->getValue(); 1899 NeedLocTracking = true; 1900 } 1901 1902 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1903 Opts.OptRecordFormat = A->getValue(); 1904 NeedLocTracking = true; 1905 } 1906 1907 Opts.OptimizationRemark = 1908 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1909 1910 Opts.OptimizationRemarkMissed = 1911 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1912 1913 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1914 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1915 1916 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1917 Opts.OptimizationRemarkMissed.hasValidPattern() || 1918 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1919 1920 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1921 bool UsingProfile = UsingSampleProfile || 1922 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1923 1924 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1925 // An IR file will contain PGO as metadata 1926 IK.getLanguage() != Language::LLVM_IR) 1927 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1928 << "-fdiagnostics-show-hotness"; 1929 1930 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1931 if (auto *arg = 1932 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1933 auto ResultOrErr = 1934 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1935 1936 if (!ResultOrErr) { 1937 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1938 << "-fdiagnostics-hotness-threshold="; 1939 } else { 1940 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1941 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1942 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1943 !UsingProfile) 1944 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1945 << "-fdiagnostics-hotness-threshold="; 1946 } 1947 } 1948 1949 // If the user requested to use a sample profile for PGO, then the 1950 // backend will need to track source location information so the profile 1951 // can be incorporated into the IR. 1952 if (UsingSampleProfile) 1953 NeedLocTracking = true; 1954 1955 if (!Opts.StackUsageOutput.empty()) 1956 NeedLocTracking = true; 1957 1958 // If the user requested a flag that requires source locations available in 1959 // the backend, make sure that the backend tracks source location information. 1960 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1961 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1962 1963 // Parse -fsanitize-recover= arguments. 1964 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1965 parseSanitizerKinds("-fsanitize-recover=", 1966 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1967 Opts.SanitizeRecover); 1968 parseSanitizerKinds("-fsanitize-trap=", 1969 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1970 Opts.SanitizeTrap); 1971 1972 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1973 1974 if (Args.hasArg(options::OPT_ffinite_loops)) 1975 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1976 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1977 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1978 1979 Opts.EmitIEEENaNCompliantInsts = 1980 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1981 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1982 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1983 1984 return Diags.getNumErrors() == NumErrorsBefore; 1985 } 1986 1987 static void 1988 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1989 SmallVectorImpl<const char *> &Args, 1990 CompilerInvocation::StringAllocator SA) { 1991 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1992 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1993 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1994 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1995 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1996 MERGER, EXTRACTOR, TABLE_INDEX) \ 1997 GENERATE_OPTION_WITH_MARSHALLING( \ 1998 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1999 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2000 #include "clang/Driver/Options.inc" 2001 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2002 2003 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2004 GenerateArg(Args, OPT_show_includes, SA); 2005 2006 for (const auto &Dep : Opts.ExtraDeps) { 2007 switch (Dep.second) { 2008 case EDK_SanitizeIgnorelist: 2009 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2010 continue; 2011 case EDK_ModuleFile: 2012 // Module file arguments are generated from FrontendOptions and 2013 // HeaderSearchOptions. 2014 continue; 2015 case EDK_ProfileList: 2016 // Profile list arguments are generated from LanguageOptions via the 2017 // marshalling infrastructure. 2018 continue; 2019 case EDK_DepFileEntry: 2020 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2021 break; 2022 } 2023 } 2024 } 2025 2026 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2027 ArgList &Args, DiagnosticsEngine &Diags, 2028 frontend::ActionKind Action, 2029 bool ShowLineMarkers) { 2030 unsigned NumErrorsBefore = Diags.getNumErrors(); 2031 2032 DependencyOutputOptions &DependencyOutputOpts = Opts; 2033 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2034 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2035 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2036 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2037 MERGER, EXTRACTOR, TABLE_INDEX) \ 2038 PARSE_OPTION_WITH_MARSHALLING( \ 2039 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2040 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2041 #include "clang/Driver/Options.inc" 2042 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2043 2044 if (Args.hasArg(OPT_show_includes)) { 2045 // Writing both /showIncludes and preprocessor output to stdout 2046 // would produce interleaved output, so use stderr for /showIncludes. 2047 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2048 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2049 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2050 else 2051 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2052 } else { 2053 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2054 } 2055 2056 // Add sanitizer ignorelists as extra dependencies. 2057 // They won't be discovered by the regular preprocessor, so 2058 // we let make / ninja to know about this implicit dependency. 2059 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2060 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2061 StringRef Val = A->getValue(); 2062 if (!Val.contains('=')) 2063 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2064 } 2065 if (Opts.IncludeSystemHeaders) { 2066 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2067 StringRef Val = A->getValue(); 2068 if (!Val.contains('=')) 2069 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2070 } 2071 } 2072 } 2073 2074 // -fprofile-list= dependencies. 2075 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2076 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2077 2078 // Propagate the extra dependencies. 2079 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2080 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2081 2082 // Only the -fmodule-file=<file> form. 2083 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2084 StringRef Val = A->getValue(); 2085 if (!Val.contains('=')) 2086 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2087 } 2088 2089 return Diags.getNumErrors() == NumErrorsBefore; 2090 } 2091 2092 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2093 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2094 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2095 // Support both clang's -f[no-]color-diagnostics and gcc's 2096 // -f[no-]diagnostics-colors[=never|always|auto]. 2097 enum { 2098 Colors_On, 2099 Colors_Off, 2100 Colors_Auto 2101 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2102 for (auto *A : Args) { 2103 const Option &O = A->getOption(); 2104 if (O.matches(options::OPT_fcolor_diagnostics) || 2105 O.matches(options::OPT_fdiagnostics_color)) { 2106 ShowColors = Colors_On; 2107 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2108 O.matches(options::OPT_fno_diagnostics_color)) { 2109 ShowColors = Colors_Off; 2110 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2111 StringRef Value(A->getValue()); 2112 if (Value == "always") 2113 ShowColors = Colors_On; 2114 else if (Value == "never") 2115 ShowColors = Colors_Off; 2116 else if (Value == "auto") 2117 ShowColors = Colors_Auto; 2118 } 2119 } 2120 return ShowColors == Colors_On || 2121 (ShowColors == Colors_Auto && 2122 llvm::sys::Process::StandardErrHasColors()); 2123 } 2124 2125 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2126 DiagnosticsEngine &Diags) { 2127 bool Success = true; 2128 for (const auto &Prefix : VerifyPrefixes) { 2129 // Every prefix must start with a letter and contain only alphanumeric 2130 // characters, hyphens, and underscores. 2131 auto BadChar = llvm::find_if(Prefix, [](char C) { 2132 return !isAlphanumeric(C) && C != '-' && C != '_'; 2133 }); 2134 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2135 Success = false; 2136 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2137 Diags.Report(diag::note_drv_verify_prefix_spelling); 2138 } 2139 } 2140 return Success; 2141 } 2142 2143 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2144 SmallVectorImpl<const char *> &Args, 2145 CompilerInvocation::StringAllocator SA) { 2146 const FileSystemOptions &FileSystemOpts = Opts; 2147 2148 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2149 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2150 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2151 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2152 MERGER, EXTRACTOR, TABLE_INDEX) \ 2153 GENERATE_OPTION_WITH_MARSHALLING( \ 2154 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2155 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2156 #include "clang/Driver/Options.inc" 2157 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2158 } 2159 2160 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2161 DiagnosticsEngine &Diags) { 2162 unsigned NumErrorsBefore = Diags.getNumErrors(); 2163 2164 FileSystemOptions &FileSystemOpts = Opts; 2165 2166 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2167 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2168 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2169 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2170 MERGER, EXTRACTOR, TABLE_INDEX) \ 2171 PARSE_OPTION_WITH_MARSHALLING( \ 2172 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2173 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2174 #include "clang/Driver/Options.inc" 2175 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2176 2177 return Diags.getNumErrors() == NumErrorsBefore; 2178 } 2179 2180 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2181 SmallVectorImpl<const char *> &Args, 2182 CompilerInvocation::StringAllocator SA) { 2183 const MigratorOptions &MigratorOpts = Opts; 2184 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2185 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2186 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2187 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2188 MERGER, EXTRACTOR, TABLE_INDEX) \ 2189 GENERATE_OPTION_WITH_MARSHALLING( \ 2190 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2191 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2192 #include "clang/Driver/Options.inc" 2193 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2194 } 2195 2196 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2197 DiagnosticsEngine &Diags) { 2198 unsigned NumErrorsBefore = Diags.getNumErrors(); 2199 2200 MigratorOptions &MigratorOpts = Opts; 2201 2202 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2203 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2204 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2205 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2206 MERGER, EXTRACTOR, TABLE_INDEX) \ 2207 PARSE_OPTION_WITH_MARSHALLING( \ 2208 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2209 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2210 #include "clang/Driver/Options.inc" 2211 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2212 2213 return Diags.getNumErrors() == NumErrorsBefore; 2214 } 2215 2216 void CompilerInvocation::GenerateDiagnosticArgs( 2217 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2218 StringAllocator SA, bool DefaultDiagColor) { 2219 const DiagnosticOptions *DiagnosticOpts = &Opts; 2220 #define DIAG_OPTION_WITH_MARSHALLING( \ 2221 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2222 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2223 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2224 MERGER, EXTRACTOR, TABLE_INDEX) \ 2225 GENERATE_OPTION_WITH_MARSHALLING( \ 2226 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2227 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2228 #include "clang/Driver/Options.inc" 2229 #undef DIAG_OPTION_WITH_MARSHALLING 2230 2231 if (!Opts.DiagnosticSerializationFile.empty()) 2232 GenerateArg(Args, OPT_diagnostic_serialized_file, 2233 Opts.DiagnosticSerializationFile, SA); 2234 2235 if (Opts.ShowColors) 2236 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2237 2238 if (Opts.VerifyDiagnostics && 2239 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2240 GenerateArg(Args, OPT_verify, SA); 2241 2242 for (const auto &Prefix : Opts.VerifyPrefixes) 2243 if (Prefix != "expected") 2244 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2245 2246 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2247 if (VIU == DiagnosticLevelMask::None) { 2248 // This is the default, don't generate anything. 2249 } else if (VIU == DiagnosticLevelMask::All) { 2250 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2251 } else { 2252 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2253 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2254 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2255 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2256 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2257 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2258 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2259 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2260 } 2261 2262 for (const auto &Warning : Opts.Warnings) { 2263 // This option is automatically generated from UndefPrefixes. 2264 if (Warning == "undef-prefix") 2265 continue; 2266 Args.push_back(SA(StringRef("-W") + Warning)); 2267 } 2268 2269 for (const auto &Remark : Opts.Remarks) { 2270 // These arguments are generated from OptimizationRemark fields of 2271 // CodeGenOptions. 2272 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2273 "pass-analysis", "no-pass-analysis", 2274 "pass-missed", "no-pass-missed"}; 2275 if (llvm::is_contained(IgnoredRemarks, Remark)) 2276 continue; 2277 2278 Args.push_back(SA(StringRef("-R") + Remark)); 2279 } 2280 } 2281 2282 std::unique_ptr<DiagnosticOptions> 2283 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2284 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2285 unsigned MissingArgIndex, MissingArgCount; 2286 InputArgList Args = getDriverOptTable().ParseArgs( 2287 Argv.slice(1), MissingArgIndex, MissingArgCount); 2288 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2289 // Any errors that would be diagnosed here will also be diagnosed later, 2290 // when the DiagnosticsEngine actually exists. 2291 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2292 return DiagOpts; 2293 } 2294 2295 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2296 DiagnosticsEngine *Diags, 2297 bool DefaultDiagColor) { 2298 Optional<DiagnosticsEngine> IgnoringDiags; 2299 if (!Diags) { 2300 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2301 new IgnoringDiagConsumer()); 2302 Diags = &*IgnoringDiags; 2303 } 2304 2305 unsigned NumErrorsBefore = Diags->getNumErrors(); 2306 2307 // The key paths of diagnostic options defined in Options.td start with 2308 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2309 DiagnosticOptions *DiagnosticOpts = &Opts; 2310 2311 #define DIAG_OPTION_WITH_MARSHALLING( \ 2312 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2313 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2314 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2315 MERGER, EXTRACTOR, TABLE_INDEX) \ 2316 PARSE_OPTION_WITH_MARSHALLING( \ 2317 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2318 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2319 #include "clang/Driver/Options.inc" 2320 #undef DIAG_OPTION_WITH_MARSHALLING 2321 2322 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2323 2324 if (Arg *A = 2325 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2326 Opts.DiagnosticSerializationFile = A->getValue(); 2327 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2328 2329 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2330 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2331 if (Args.hasArg(OPT_verify)) 2332 Opts.VerifyPrefixes.push_back("expected"); 2333 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2334 // then sort it to prepare for fast lookup using std::binary_search. 2335 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2336 Opts.VerifyDiagnostics = false; 2337 else 2338 llvm::sort(Opts.VerifyPrefixes); 2339 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2340 parseDiagnosticLevelMask( 2341 "-verify-ignore-unexpected=", 2342 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2343 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2344 DiagMask = DiagnosticLevelMask::All; 2345 Opts.setVerifyIgnoreUnexpected(DiagMask); 2346 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2347 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2348 Diags->Report(diag::warn_ignoring_ftabstop_value) 2349 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2350 } 2351 2352 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2353 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2354 2355 return Diags->getNumErrors() == NumErrorsBefore; 2356 } 2357 2358 /// Parse the argument to the -ftest-module-file-extension 2359 /// command-line argument. 2360 /// 2361 /// \returns true on error, false on success. 2362 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2363 std::string &BlockName, 2364 unsigned &MajorVersion, 2365 unsigned &MinorVersion, 2366 bool &Hashed, 2367 std::string &UserInfo) { 2368 SmallVector<StringRef, 5> Args; 2369 Arg.split(Args, ':', 5); 2370 if (Args.size() < 5) 2371 return true; 2372 2373 BlockName = std::string(Args[0]); 2374 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2375 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2376 if (Args[3].getAsInteger(2, Hashed)) return true; 2377 if (Args.size() > 4) 2378 UserInfo = std::string(Args[4]); 2379 return false; 2380 } 2381 2382 /// Return a table that associates command line option specifiers with the 2383 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2384 /// intentionally missing, as this case is handled separately from other 2385 /// frontend options. 2386 static const auto &getFrontendActionTable() { 2387 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2388 {frontend::ASTDeclList, OPT_ast_list}, 2389 2390 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2391 {frontend::ASTDump, OPT_ast_dump_all}, 2392 {frontend::ASTDump, OPT_ast_dump_EQ}, 2393 {frontend::ASTDump, OPT_ast_dump}, 2394 {frontend::ASTDump, OPT_ast_dump_lookups}, 2395 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2396 2397 {frontend::ASTPrint, OPT_ast_print}, 2398 {frontend::ASTView, OPT_ast_view}, 2399 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2400 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2401 {frontend::DumpTokens, OPT_dump_tokens}, 2402 {frontend::EmitAssembly, OPT_S}, 2403 {frontend::EmitBC, OPT_emit_llvm_bc}, 2404 {frontend::EmitHTML, OPT_emit_html}, 2405 {frontend::EmitLLVM, OPT_emit_llvm}, 2406 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2407 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2408 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2409 {frontend::EmitObj, OPT_emit_obj}, 2410 2411 {frontend::FixIt, OPT_fixit_EQ}, 2412 {frontend::FixIt, OPT_fixit}, 2413 2414 {frontend::GenerateModule, OPT_emit_module}, 2415 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2416 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2417 {frontend::GeneratePCH, OPT_emit_pch}, 2418 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2419 {frontend::InitOnly, OPT_init_only}, 2420 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2421 {frontend::ModuleFileInfo, OPT_module_file_info}, 2422 {frontend::VerifyPCH, OPT_verify_pch}, 2423 {frontend::PrintPreamble, OPT_print_preamble}, 2424 {frontend::PrintPreprocessedInput, OPT_E}, 2425 {frontend::TemplightDump, OPT_templight_dump}, 2426 {frontend::RewriteMacros, OPT_rewrite_macros}, 2427 {frontend::RewriteObjC, OPT_rewrite_objc}, 2428 {frontend::RewriteTest, OPT_rewrite_test}, 2429 {frontend::RunAnalysis, OPT_analyze}, 2430 {frontend::MigrateSource, OPT_migrate}, 2431 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2432 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2433 OPT_print_dependency_directives_minimized_source}, 2434 }; 2435 2436 return Table; 2437 } 2438 2439 /// Maps command line option to frontend action. 2440 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2441 for (const auto &ActionOpt : getFrontendActionTable()) 2442 if (ActionOpt.second == Opt.getID()) 2443 return ActionOpt.first; 2444 2445 return None; 2446 } 2447 2448 /// Maps frontend action to command line option. 2449 static Optional<OptSpecifier> 2450 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2451 for (const auto &ActionOpt : getFrontendActionTable()) 2452 if (ActionOpt.first == ProgramAction) 2453 return OptSpecifier(ActionOpt.second); 2454 2455 return None; 2456 } 2457 2458 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2459 SmallVectorImpl<const char *> &Args, 2460 CompilerInvocation::StringAllocator SA, 2461 bool IsHeader) { 2462 const FrontendOptions &FrontendOpts = Opts; 2463 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2464 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2465 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2466 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2467 MERGER, EXTRACTOR, TABLE_INDEX) \ 2468 GENERATE_OPTION_WITH_MARSHALLING( \ 2469 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2470 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2471 #include "clang/Driver/Options.inc" 2472 #undef FRONTEND_OPTION_WITH_MARSHALLING 2473 2474 Optional<OptSpecifier> ProgramActionOpt = 2475 getProgramActionOpt(Opts.ProgramAction); 2476 2477 // Generating a simple flag covers most frontend actions. 2478 std::function<void()> GenerateProgramAction = [&]() { 2479 GenerateArg(Args, *ProgramActionOpt, SA); 2480 }; 2481 2482 if (!ProgramActionOpt) { 2483 // PluginAction is the only program action handled separately. 2484 assert(Opts.ProgramAction == frontend::PluginAction && 2485 "Frontend action without option."); 2486 GenerateProgramAction = [&]() { 2487 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2488 }; 2489 } 2490 2491 // FIXME: Simplify the complex 'AST dump' command line. 2492 if (Opts.ProgramAction == frontend::ASTDump) { 2493 GenerateProgramAction = [&]() { 2494 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2495 // marshalling infrastructure. 2496 2497 if (Opts.ASTDumpFormat != ADOF_Default) { 2498 StringRef Format; 2499 switch (Opts.ASTDumpFormat) { 2500 case ADOF_Default: 2501 llvm_unreachable("Default AST dump format."); 2502 case ADOF_JSON: 2503 Format = "json"; 2504 break; 2505 } 2506 2507 if (Opts.ASTDumpAll) 2508 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2509 if (Opts.ASTDumpDecls) 2510 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2511 } else { 2512 if (Opts.ASTDumpAll) 2513 GenerateArg(Args, OPT_ast_dump_all, SA); 2514 if (Opts.ASTDumpDecls) 2515 GenerateArg(Args, OPT_ast_dump, SA); 2516 } 2517 }; 2518 } 2519 2520 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2521 GenerateProgramAction = [&]() { 2522 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2523 }; 2524 } 2525 2526 GenerateProgramAction(); 2527 2528 for (const auto &PluginArgs : Opts.PluginArgs) { 2529 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2530 const char *Spelling = 2531 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2532 for (const auto &PluginArg : PluginArgs.second) 2533 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2534 } 2535 2536 for (const auto &Ext : Opts.ModuleFileExtensions) 2537 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2538 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2539 2540 if (!Opts.CodeCompletionAt.FileName.empty()) 2541 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2542 SA); 2543 2544 for (const auto &Plugin : Opts.Plugins) 2545 GenerateArg(Args, OPT_load, Plugin, SA); 2546 2547 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2548 2549 for (const auto &ModuleFile : Opts.ModuleFiles) 2550 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2551 2552 if (Opts.AuxTargetCPU.hasValue()) 2553 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2554 2555 if (Opts.AuxTargetFeatures.hasValue()) 2556 for (const auto &Feature : *Opts.AuxTargetFeatures) 2557 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2558 2559 { 2560 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2561 StringRef ModuleMap = 2562 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2563 StringRef Header = IsHeader ? "-header" : ""; 2564 2565 StringRef Lang; 2566 switch (Opts.DashX.getLanguage()) { 2567 case Language::C: 2568 Lang = "c"; 2569 break; 2570 case Language::OpenCL: 2571 Lang = "cl"; 2572 break; 2573 case Language::OpenCLCXX: 2574 Lang = "clcpp"; 2575 break; 2576 case Language::CUDA: 2577 Lang = "cuda"; 2578 break; 2579 case Language::HIP: 2580 Lang = "hip"; 2581 break; 2582 case Language::CXX: 2583 Lang = "c++"; 2584 break; 2585 case Language::ObjC: 2586 Lang = "objective-c"; 2587 break; 2588 case Language::ObjCXX: 2589 Lang = "objective-c++"; 2590 break; 2591 case Language::RenderScript: 2592 Lang = "renderscript"; 2593 break; 2594 case Language::Asm: 2595 Lang = "assembler-with-cpp"; 2596 break; 2597 case Language::Unknown: 2598 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2599 "Generating -x argument for unknown language (not precompiled)."); 2600 Lang = "ast"; 2601 break; 2602 case Language::LLVM_IR: 2603 Lang = "ir"; 2604 break; 2605 } 2606 2607 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2608 } 2609 2610 // OPT_INPUT has a unique class, generate it directly. 2611 for (const auto &Input : Opts.Inputs) 2612 Args.push_back(SA(Input.getFile())); 2613 } 2614 2615 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2616 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2617 unsigned NumErrorsBefore = Diags.getNumErrors(); 2618 2619 FrontendOptions &FrontendOpts = Opts; 2620 2621 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2622 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2623 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2624 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2625 MERGER, EXTRACTOR, TABLE_INDEX) \ 2626 PARSE_OPTION_WITH_MARSHALLING( \ 2627 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2628 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2629 #include "clang/Driver/Options.inc" 2630 #undef FRONTEND_OPTION_WITH_MARSHALLING 2631 2632 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2633 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2634 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2635 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2636 assert(ProgramAction && "Option specifier not in Action_Group."); 2637 2638 if (ProgramAction == frontend::ASTDump && 2639 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2640 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2641 .CaseLower("default", ADOF_Default) 2642 .CaseLower("json", ADOF_JSON) 2643 .Default(std::numeric_limits<unsigned>::max()); 2644 2645 if (Val != std::numeric_limits<unsigned>::max()) 2646 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2647 else { 2648 Diags.Report(diag::err_drv_invalid_value) 2649 << A->getAsString(Args) << A->getValue(); 2650 Opts.ASTDumpFormat = ADOF_Default; 2651 } 2652 } 2653 2654 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2655 Opts.FixItSuffix = A->getValue(); 2656 2657 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2658 StringRef ArgStr = 2659 Args.hasArg(OPT_interface_stub_version_EQ) 2660 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2661 : "ifs-v1"; 2662 if (ArgStr == "experimental-yaml-elf-v1" || 2663 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2664 ArgStr == "experimental-tapi-elf-v1") { 2665 std::string ErrorMessage = 2666 "Invalid interface stub format: " + ArgStr.str() + 2667 " is deprecated."; 2668 Diags.Report(diag::err_drv_invalid_value) 2669 << "Must specify a valid interface stub format type, ie: " 2670 "-interface-stub-version=ifs-v1" 2671 << ErrorMessage; 2672 ProgramAction = frontend::ParseSyntaxOnly; 2673 } else if (!ArgStr.startswith("ifs-")) { 2674 std::string ErrorMessage = 2675 "Invalid interface stub format: " + ArgStr.str() + "."; 2676 Diags.Report(diag::err_drv_invalid_value) 2677 << "Must specify a valid interface stub format type, ie: " 2678 "-interface-stub-version=ifs-v1" 2679 << ErrorMessage; 2680 ProgramAction = frontend::ParseSyntaxOnly; 2681 } 2682 } 2683 2684 Opts.ProgramAction = *ProgramAction; 2685 } 2686 2687 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2688 Opts.Plugins.emplace_back(A->getValue(0)); 2689 Opts.ProgramAction = frontend::PluginAction; 2690 Opts.ActionName = A->getValue(); 2691 } 2692 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2693 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2694 2695 for (const std::string &Arg : 2696 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2697 std::string BlockName; 2698 unsigned MajorVersion; 2699 unsigned MinorVersion; 2700 bool Hashed; 2701 std::string UserInfo; 2702 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2703 MinorVersion, Hashed, UserInfo)) { 2704 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2705 2706 continue; 2707 } 2708 2709 // Add the testing module file extension. 2710 Opts.ModuleFileExtensions.push_back( 2711 std::make_shared<TestModuleFileExtension>( 2712 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2713 } 2714 2715 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2716 Opts.CodeCompletionAt = 2717 ParsedSourceLocation::FromString(A->getValue()); 2718 if (Opts.CodeCompletionAt.FileName.empty()) 2719 Diags.Report(diag::err_drv_invalid_value) 2720 << A->getAsString(Args) << A->getValue(); 2721 } 2722 2723 Opts.Plugins = Args.getAllArgValues(OPT_load); 2724 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2725 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2726 // Only the -fmodule-file=<file> form. 2727 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2728 StringRef Val = A->getValue(); 2729 if (!Val.contains('=')) 2730 Opts.ModuleFiles.push_back(std::string(Val)); 2731 } 2732 2733 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2734 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2735 << "-emit-module"; 2736 2737 if (Args.hasArg(OPT_aux_target_cpu)) 2738 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2739 if (Args.hasArg(OPT_aux_target_feature)) 2740 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2741 2742 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2743 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2744 Diags.Report(diag::err_drv_argument_not_allowed_with) 2745 << "ARC migration" << "ObjC migration"; 2746 } 2747 2748 InputKind DashX(Language::Unknown); 2749 if (const Arg *A = Args.getLastArg(OPT_x)) { 2750 StringRef XValue = A->getValue(); 2751 2752 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2753 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2754 bool Preprocessed = XValue.consume_back("-cpp-output"); 2755 bool ModuleMap = XValue.consume_back("-module-map"); 2756 IsHeaderFile = !Preprocessed && !ModuleMap && 2757 XValue != "precompiled-header" && 2758 XValue.consume_back("-header"); 2759 2760 // Principal languages. 2761 DashX = llvm::StringSwitch<InputKind>(XValue) 2762 .Case("c", Language::C) 2763 .Case("cl", Language::OpenCL) 2764 .Case("clcpp", Language::OpenCLCXX) 2765 .Case("cuda", Language::CUDA) 2766 .Case("hip", Language::HIP) 2767 .Case("c++", Language::CXX) 2768 .Case("objective-c", Language::ObjC) 2769 .Case("objective-c++", Language::ObjCXX) 2770 .Case("renderscript", Language::RenderScript) 2771 .Default(Language::Unknown); 2772 2773 // "objc[++]-cpp-output" is an acceptable synonym for 2774 // "objective-c[++]-cpp-output". 2775 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2776 DashX = llvm::StringSwitch<InputKind>(XValue) 2777 .Case("objc", Language::ObjC) 2778 .Case("objc++", Language::ObjCXX) 2779 .Default(Language::Unknown); 2780 2781 // Some special cases cannot be combined with suffixes. 2782 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2783 DashX = llvm::StringSwitch<InputKind>(XValue) 2784 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2785 .Case("assembler-with-cpp", Language::Asm) 2786 .Cases("ast", "pcm", "precompiled-header", 2787 InputKind(Language::Unknown, InputKind::Precompiled)) 2788 .Case("ir", Language::LLVM_IR) 2789 .Default(Language::Unknown); 2790 2791 if (DashX.isUnknown()) 2792 Diags.Report(diag::err_drv_invalid_value) 2793 << A->getAsString(Args) << A->getValue(); 2794 2795 if (Preprocessed) 2796 DashX = DashX.getPreprocessed(); 2797 if (ModuleMap) 2798 DashX = DashX.withFormat(InputKind::ModuleMap); 2799 } 2800 2801 // '-' is the default input if none is given. 2802 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2803 Opts.Inputs.clear(); 2804 if (Inputs.empty()) 2805 Inputs.push_back("-"); 2806 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2807 InputKind IK = DashX; 2808 if (IK.isUnknown()) { 2809 IK = FrontendOptions::getInputKindForExtension( 2810 StringRef(Inputs[i]).rsplit('.').second); 2811 // FIXME: Warn on this? 2812 if (IK.isUnknown()) 2813 IK = Language::C; 2814 // FIXME: Remove this hack. 2815 if (i == 0) 2816 DashX = IK; 2817 } 2818 2819 bool IsSystem = false; 2820 2821 // The -emit-module action implicitly takes a module map. 2822 if (Opts.ProgramAction == frontend::GenerateModule && 2823 IK.getFormat() == InputKind::Source) { 2824 IK = IK.withFormat(InputKind::ModuleMap); 2825 IsSystem = Opts.IsSystemModule; 2826 } 2827 2828 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2829 } 2830 2831 Opts.DashX = DashX; 2832 2833 return Diags.getNumErrors() == NumErrorsBefore; 2834 } 2835 2836 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2837 void *MainAddr) { 2838 std::string ClangExecutable = 2839 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2840 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2841 } 2842 2843 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2844 SmallVectorImpl<const char *> &Args, 2845 CompilerInvocation::StringAllocator SA) { 2846 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2847 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2848 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2849 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2850 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2851 MERGER, EXTRACTOR, TABLE_INDEX) \ 2852 GENERATE_OPTION_WITH_MARSHALLING( \ 2853 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2854 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2855 #include "clang/Driver/Options.inc" 2856 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2857 2858 if (Opts.UseLibcxx) 2859 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2860 2861 if (!Opts.ModuleCachePath.empty()) 2862 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2863 2864 for (const auto &File : Opts.PrebuiltModuleFiles) 2865 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2866 2867 for (const auto &Path : Opts.PrebuiltModulePaths) 2868 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2869 2870 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2871 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2872 2873 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2874 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2875 llvm::Optional<bool> IsFramework, 2876 llvm::Optional<bool> IgnoreSysRoot) { 2877 return llvm::is_contained(Groups, Entry.Group) && 2878 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2879 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2880 }; 2881 2882 auto It = Opts.UserEntries.begin(); 2883 auto End = Opts.UserEntries.end(); 2884 2885 // Add -I..., -F..., and -index-header-map options in order. 2886 for (; It < End && 2887 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2888 ++It) { 2889 OptSpecifier Opt = [It, Matches]() { 2890 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2891 return OPT_F; 2892 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2893 return OPT_I; 2894 if (Matches(*It, frontend::Angled, true, true)) 2895 return OPT_F; 2896 if (Matches(*It, frontend::Angled, false, true)) 2897 return OPT_I; 2898 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2899 }(); 2900 2901 if (It->Group == frontend::IndexHeaderMap) 2902 GenerateArg(Args, OPT_index_header_map, SA); 2903 GenerateArg(Args, Opt, It->Path, SA); 2904 }; 2905 2906 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2907 // have already been generated as "-I[xx]yy". If that's the case, their 2908 // position on command line was such that this has no semantic impact on 2909 // include paths. 2910 for (; It < End && 2911 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2912 ++It) { 2913 OptSpecifier Opt = 2914 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2915 GenerateArg(Args, Opt, It->Path, SA); 2916 } 2917 2918 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2919 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2920 // command line was such that this has no semantic impact on include paths. 2921 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2922 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2923 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2924 GenerateArg(Args, OPT_iquote, It->Path, SA); 2925 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2926 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2927 It->Path, SA); 2928 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2929 GenerateArg(Args, OPT_iframework, It->Path, SA); 2930 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2931 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2932 2933 // Add the paths for the various language specific isystem flags. 2934 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2935 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2936 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2937 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2938 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2939 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2940 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2941 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2942 2943 // Add the internal paths from a driver that detects standard include paths. 2944 // Note: Some paths that came from "-internal-isystem" arguments may have 2945 // already been generated as "-isystem". If that's the case, their position on 2946 // command line was such that this has no semantic impact on include paths. 2947 for (; It < End && 2948 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2949 ++It) { 2950 OptSpecifier Opt = It->Group == frontend::System 2951 ? OPT_internal_isystem 2952 : OPT_internal_externc_isystem; 2953 GenerateArg(Args, Opt, It->Path, SA); 2954 } 2955 2956 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2957 2958 // Add the path prefixes which are implicitly treated as being system headers. 2959 for (const auto &P : Opts.SystemHeaderPrefixes) { 2960 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2961 : OPT_no_system_header_prefix; 2962 GenerateArg(Args, Opt, P.Prefix, SA); 2963 } 2964 2965 for (const std::string &F : Opts.VFSOverlayFiles) 2966 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2967 } 2968 2969 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2970 DiagnosticsEngine &Diags, 2971 const std::string &WorkingDir) { 2972 unsigned NumErrorsBefore = Diags.getNumErrors(); 2973 2974 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2975 2976 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2977 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2978 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2979 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2980 MERGER, EXTRACTOR, TABLE_INDEX) \ 2981 PARSE_OPTION_WITH_MARSHALLING( \ 2982 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2983 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2984 #include "clang/Driver/Options.inc" 2985 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2986 2987 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2988 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2989 2990 // Canonicalize -fmodules-cache-path before storing it. 2991 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2992 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2993 if (WorkingDir.empty()) 2994 llvm::sys::fs::make_absolute(P); 2995 else 2996 llvm::sys::fs::make_absolute(WorkingDir, P); 2997 } 2998 llvm::sys::path::remove_dots(P); 2999 Opts.ModuleCachePath = std::string(P.str()); 3000 3001 // Only the -fmodule-file=<name>=<file> form. 3002 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3003 StringRef Val = A->getValue(); 3004 if (Val.contains('=')) { 3005 auto Split = Val.split('='); 3006 Opts.PrebuiltModuleFiles.insert( 3007 {std::string(Split.first), std::string(Split.second)}); 3008 } 3009 } 3010 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3011 Opts.AddPrebuiltModulePath(A->getValue()); 3012 3013 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3014 StringRef MacroDef = A->getValue(); 3015 Opts.ModulesIgnoreMacros.insert( 3016 llvm::CachedHashString(MacroDef.split('=').first)); 3017 } 3018 3019 // Add -I..., -F..., and -index-header-map options in order. 3020 bool IsIndexHeaderMap = false; 3021 bool IsSysrootSpecified = 3022 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3023 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3024 if (A->getOption().matches(OPT_index_header_map)) { 3025 // -index-header-map applies to the next -I or -F. 3026 IsIndexHeaderMap = true; 3027 continue; 3028 } 3029 3030 frontend::IncludeDirGroup Group = 3031 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3032 3033 bool IsFramework = A->getOption().matches(OPT_F); 3034 std::string Path = A->getValue(); 3035 3036 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3037 SmallString<32> Buffer; 3038 llvm::sys::path::append(Buffer, Opts.Sysroot, 3039 llvm::StringRef(A->getValue()).substr(1)); 3040 Path = std::string(Buffer.str()); 3041 } 3042 3043 Opts.AddPath(Path, Group, IsFramework, 3044 /*IgnoreSysroot*/ true); 3045 IsIndexHeaderMap = false; 3046 } 3047 3048 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3049 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3050 for (const auto *A : 3051 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3052 if (A->getOption().matches(OPT_iprefix)) 3053 Prefix = A->getValue(); 3054 else if (A->getOption().matches(OPT_iwithprefix)) 3055 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3056 else 3057 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3058 } 3059 3060 for (const auto *A : Args.filtered(OPT_idirafter)) 3061 Opts.AddPath(A->getValue(), frontend::After, false, true); 3062 for (const auto *A : Args.filtered(OPT_iquote)) 3063 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3064 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3065 Opts.AddPath(A->getValue(), frontend::System, false, 3066 !A->getOption().matches(OPT_iwithsysroot)); 3067 for (const auto *A : Args.filtered(OPT_iframework)) 3068 Opts.AddPath(A->getValue(), frontend::System, true, true); 3069 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3070 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3071 /*IgnoreSysRoot=*/false); 3072 3073 // Add the paths for the various language specific isystem flags. 3074 for (const auto *A : Args.filtered(OPT_c_isystem)) 3075 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3076 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3077 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3078 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3079 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3080 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3081 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3082 3083 // Add the internal paths from a driver that detects standard include paths. 3084 for (const auto *A : 3085 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3086 frontend::IncludeDirGroup Group = frontend::System; 3087 if (A->getOption().matches(OPT_internal_externc_isystem)) 3088 Group = frontend::ExternCSystem; 3089 Opts.AddPath(A->getValue(), Group, false, true); 3090 } 3091 3092 // Add the path prefixes which are implicitly treated as being system headers. 3093 for (const auto *A : 3094 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3095 Opts.AddSystemHeaderPrefix( 3096 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3097 3098 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3099 Opts.AddVFSOverlayFile(A->getValue()); 3100 3101 return Diags.getNumErrors() == NumErrorsBefore; 3102 } 3103 3104 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3105 const llvm::Triple &T, 3106 std::vector<std::string> &Includes, 3107 LangStandard::Kind LangStd) { 3108 // Set some properties which depend solely on the input kind; it would be nice 3109 // to move these to the language standard, and have the driver resolve the 3110 // input kind + language standard. 3111 // 3112 // FIXME: Perhaps a better model would be for a single source file to have 3113 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3114 // simultaneously active? 3115 if (IK.getLanguage() == Language::Asm) { 3116 Opts.AsmPreprocessor = 1; 3117 } else if (IK.isObjectiveC()) { 3118 Opts.ObjC = 1; 3119 } 3120 3121 if (LangStd == LangStandard::lang_unspecified) { 3122 // Based on the base language, pick one. 3123 switch (IK.getLanguage()) { 3124 case Language::Unknown: 3125 case Language::LLVM_IR: 3126 llvm_unreachable("Invalid input kind!"); 3127 case Language::OpenCL: 3128 LangStd = LangStandard::lang_opencl12; 3129 break; 3130 case Language::OpenCLCXX: 3131 LangStd = LangStandard::lang_openclcpp10; 3132 break; 3133 case Language::CUDA: 3134 LangStd = LangStandard::lang_cuda; 3135 break; 3136 case Language::Asm: 3137 case Language::C: 3138 #if defined(CLANG_DEFAULT_STD_C) 3139 LangStd = CLANG_DEFAULT_STD_C; 3140 #else 3141 // The PS4 uses C99 as the default C standard. 3142 if (T.isPS4()) 3143 LangStd = LangStandard::lang_gnu99; 3144 else 3145 LangStd = LangStandard::lang_gnu17; 3146 #endif 3147 break; 3148 case Language::ObjC: 3149 #if defined(CLANG_DEFAULT_STD_C) 3150 LangStd = CLANG_DEFAULT_STD_C; 3151 #else 3152 LangStd = LangStandard::lang_gnu11; 3153 #endif 3154 break; 3155 case Language::CXX: 3156 case Language::ObjCXX: 3157 #if defined(CLANG_DEFAULT_STD_CXX) 3158 LangStd = CLANG_DEFAULT_STD_CXX; 3159 #else 3160 LangStd = LangStandard::lang_gnucxx14; 3161 #endif 3162 break; 3163 case Language::RenderScript: 3164 LangStd = LangStandard::lang_c99; 3165 break; 3166 case Language::HIP: 3167 LangStd = LangStandard::lang_hip; 3168 break; 3169 } 3170 } 3171 3172 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3173 Opts.LangStd = LangStd; 3174 Opts.LineComment = Std.hasLineComments(); 3175 Opts.C99 = Std.isC99(); 3176 Opts.C11 = Std.isC11(); 3177 Opts.C17 = Std.isC17(); 3178 Opts.C2x = Std.isC2x(); 3179 Opts.CPlusPlus = Std.isCPlusPlus(); 3180 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3181 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3182 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3183 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3184 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3185 Opts.GNUMode = Std.isGNUMode(); 3186 Opts.GNUCVersion = 0; 3187 Opts.HexFloats = Std.hasHexFloats(); 3188 Opts.ImplicitInt = Std.hasImplicitInt(); 3189 3190 // Set OpenCL Version. 3191 Opts.OpenCL = Std.isOpenCL(); 3192 if (LangStd == LangStandard::lang_opencl10) 3193 Opts.OpenCLVersion = 100; 3194 else if (LangStd == LangStandard::lang_opencl11) 3195 Opts.OpenCLVersion = 110; 3196 else if (LangStd == LangStandard::lang_opencl12) 3197 Opts.OpenCLVersion = 120; 3198 else if (LangStd == LangStandard::lang_opencl20) 3199 Opts.OpenCLVersion = 200; 3200 else if (LangStd == LangStandard::lang_opencl30) 3201 Opts.OpenCLVersion = 300; 3202 else if (LangStd == LangStandard::lang_openclcpp10) 3203 Opts.OpenCLCPlusPlusVersion = 100; 3204 else if (LangStd == LangStandard::lang_openclcpp2021) 3205 Opts.OpenCLCPlusPlusVersion = 202100; 3206 3207 // OpenCL has some additional defaults. 3208 if (Opts.OpenCL) { 3209 Opts.AltiVec = 0; 3210 Opts.ZVector = 0; 3211 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3212 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3213 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3214 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3215 3216 // Include default header file for OpenCL. 3217 if (Opts.IncludeDefaultHeader) { 3218 if (Opts.DeclareOpenCLBuiltins) { 3219 // Only include base header file for builtin types and constants. 3220 Includes.push_back("opencl-c-base.h"); 3221 } else { 3222 Includes.push_back("opencl-c.h"); 3223 } 3224 } 3225 } 3226 3227 Opts.HIP = IK.getLanguage() == Language::HIP; 3228 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3229 if (Opts.HIP) { 3230 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3231 // fuses multiplication/addition instructions without contract flag from 3232 // device library functions in LLVM bitcode, which causes accuracy loss in 3233 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3234 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3235 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3236 // FP contract option is used to allow fuse across statements in frontend 3237 // whereas respecting contract flag in backend. 3238 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3239 } else if (Opts.CUDA) { 3240 // Allow fuse across statements disregarding pragmas. 3241 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3242 } 3243 3244 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3245 3246 // OpenCL and C++ both have bool, true, false keywords. 3247 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3248 3249 // OpenCL has half keyword 3250 Opts.Half = Opts.OpenCL; 3251 } 3252 3253 /// Check if input file kind and language standard are compatible. 3254 static bool IsInputCompatibleWithStandard(InputKind IK, 3255 const LangStandard &S) { 3256 switch (IK.getLanguage()) { 3257 case Language::Unknown: 3258 case Language::LLVM_IR: 3259 llvm_unreachable("should not parse language flags for this input"); 3260 3261 case Language::C: 3262 case Language::ObjC: 3263 case Language::RenderScript: 3264 return S.getLanguage() == Language::C; 3265 3266 case Language::OpenCL: 3267 return S.getLanguage() == Language::OpenCL || 3268 S.getLanguage() == Language::OpenCLCXX; 3269 3270 case Language::OpenCLCXX: 3271 return S.getLanguage() == Language::OpenCLCXX; 3272 3273 case Language::CXX: 3274 case Language::ObjCXX: 3275 return S.getLanguage() == Language::CXX; 3276 3277 case Language::CUDA: 3278 // FIXME: What -std= values should be permitted for CUDA compilations? 3279 return S.getLanguage() == Language::CUDA || 3280 S.getLanguage() == Language::CXX; 3281 3282 case Language::HIP: 3283 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3284 3285 case Language::Asm: 3286 // Accept (and ignore) all -std= values. 3287 // FIXME: The -std= value is not ignored; it affects the tokenization 3288 // and preprocessing rules if we're preprocessing this asm input. 3289 return true; 3290 } 3291 3292 llvm_unreachable("unexpected input language"); 3293 } 3294 3295 /// Get language name for given input kind. 3296 static const StringRef GetInputKindName(InputKind IK) { 3297 switch (IK.getLanguage()) { 3298 case Language::C: 3299 return "C"; 3300 case Language::ObjC: 3301 return "Objective-C"; 3302 case Language::CXX: 3303 return "C++"; 3304 case Language::ObjCXX: 3305 return "Objective-C++"; 3306 case Language::OpenCL: 3307 return "OpenCL"; 3308 case Language::OpenCLCXX: 3309 return "C++ for OpenCL"; 3310 case Language::CUDA: 3311 return "CUDA"; 3312 case Language::RenderScript: 3313 return "RenderScript"; 3314 case Language::HIP: 3315 return "HIP"; 3316 3317 case Language::Asm: 3318 return "Asm"; 3319 case Language::LLVM_IR: 3320 return "LLVM IR"; 3321 3322 case Language::Unknown: 3323 break; 3324 } 3325 llvm_unreachable("unknown input language"); 3326 } 3327 3328 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3329 SmallVectorImpl<const char *> &Args, 3330 StringAllocator SA, 3331 const llvm::Triple &T, InputKind IK) { 3332 if (IK.getFormat() == InputKind::Precompiled || 3333 IK.getLanguage() == Language::LLVM_IR) { 3334 if (Opts.ObjCAutoRefCount) 3335 GenerateArg(Args, OPT_fobjc_arc, SA); 3336 if (Opts.PICLevel != 0) 3337 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3338 if (Opts.PIE) 3339 GenerateArg(Args, OPT_pic_is_pie, SA); 3340 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3341 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3342 3343 return; 3344 } 3345 3346 OptSpecifier StdOpt; 3347 switch (Opts.LangStd) { 3348 case LangStandard::lang_opencl10: 3349 case LangStandard::lang_opencl11: 3350 case LangStandard::lang_opencl12: 3351 case LangStandard::lang_opencl20: 3352 case LangStandard::lang_opencl30: 3353 case LangStandard::lang_openclcpp10: 3354 case LangStandard::lang_openclcpp2021: 3355 StdOpt = OPT_cl_std_EQ; 3356 break; 3357 default: 3358 StdOpt = OPT_std_EQ; 3359 break; 3360 } 3361 3362 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3363 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3364 3365 if (Opts.IncludeDefaultHeader) 3366 GenerateArg(Args, OPT_finclude_default_header, SA); 3367 if (Opts.DeclareOpenCLBuiltins) 3368 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3369 3370 const LangOptions *LangOpts = &Opts; 3371 3372 #define LANG_OPTION_WITH_MARSHALLING( \ 3373 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3374 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3375 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3376 MERGER, EXTRACTOR, TABLE_INDEX) \ 3377 GENERATE_OPTION_WITH_MARSHALLING( \ 3378 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3379 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3380 #include "clang/Driver/Options.inc" 3381 #undef LANG_OPTION_WITH_MARSHALLING 3382 3383 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3384 3385 if (Opts.ObjC) { 3386 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3387 3388 if (Opts.GC == LangOptions::GCOnly) 3389 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3390 else if (Opts.GC == LangOptions::HybridGC) 3391 GenerateArg(Args, OPT_fobjc_gc, SA); 3392 else if (Opts.ObjCAutoRefCount == 1) 3393 GenerateArg(Args, OPT_fobjc_arc, SA); 3394 3395 if (Opts.ObjCWeakRuntime) 3396 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3397 3398 if (Opts.ObjCWeak) 3399 GenerateArg(Args, OPT_fobjc_weak, SA); 3400 3401 if (Opts.ObjCSubscriptingLegacyRuntime) 3402 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3403 } 3404 3405 if (Opts.GNUCVersion != 0) { 3406 unsigned Major = Opts.GNUCVersion / 100 / 100; 3407 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3408 unsigned Patch = Opts.GNUCVersion % 100; 3409 GenerateArg(Args, OPT_fgnuc_version_EQ, 3410 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3411 } 3412 3413 if (Opts.IgnoreXCOFFVisibility) 3414 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3415 3416 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3417 GenerateArg(Args, OPT_ftrapv, SA); 3418 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3419 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3420 GenerateArg(Args, OPT_fwrapv, SA); 3421 } 3422 3423 if (Opts.MSCompatibilityVersion != 0) { 3424 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3425 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3426 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3427 GenerateArg(Args, OPT_fms_compatibility_version, 3428 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3429 } 3430 3431 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3432 if (!Opts.Trigraphs) 3433 GenerateArg(Args, OPT_fno_trigraphs, SA); 3434 } else { 3435 if (Opts.Trigraphs) 3436 GenerateArg(Args, OPT_ftrigraphs, SA); 3437 } 3438 3439 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3440 GenerateArg(Args, OPT_fblocks, SA); 3441 3442 if (Opts.ConvergentFunctions && 3443 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3444 GenerateArg(Args, OPT_fconvergent_functions, SA); 3445 3446 if (Opts.NoBuiltin && !Opts.Freestanding) 3447 GenerateArg(Args, OPT_fno_builtin, SA); 3448 3449 if (!Opts.NoBuiltin) 3450 for (const auto &Func : Opts.NoBuiltinFuncs) 3451 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3452 3453 if (Opts.LongDoubleSize == 128) 3454 GenerateArg(Args, OPT_mlong_double_128, SA); 3455 else if (Opts.LongDoubleSize == 64) 3456 GenerateArg(Args, OPT_mlong_double_64, SA); 3457 3458 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3459 3460 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3461 // '-fopenmp-targets='. 3462 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3463 GenerateArg(Args, OPT_fopenmp, SA); 3464 3465 if (Opts.OpenMP != 50) 3466 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3467 3468 if (!Opts.OpenMPUseTLS) 3469 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3470 3471 if (Opts.OpenMPIsDevice) 3472 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3473 3474 if (Opts.OpenMPIRBuilder) 3475 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3476 } 3477 3478 if (Opts.OpenMPSimd) { 3479 GenerateArg(Args, OPT_fopenmp_simd, SA); 3480 3481 if (Opts.OpenMP != 50) 3482 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3483 } 3484 3485 if (Opts.OpenMPTargetNewRuntime) 3486 GenerateArg(Args, OPT_fopenmp_target_new_runtime, SA); 3487 3488 if (Opts.OpenMPThreadSubscription) 3489 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3490 3491 if (Opts.OpenMPTeamSubscription) 3492 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3493 3494 if (Opts.OpenMPTargetDebug != 0) 3495 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3496 Twine(Opts.OpenMPTargetDebug), SA); 3497 3498 if (Opts.OpenMPCUDANumSMs != 0) 3499 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3500 Twine(Opts.OpenMPCUDANumSMs), SA); 3501 3502 if (Opts.OpenMPCUDABlocksPerSM != 0) 3503 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3504 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3505 3506 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3507 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3508 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3509 3510 if (!Opts.OMPTargetTriples.empty()) { 3511 std::string Targets; 3512 llvm::raw_string_ostream OS(Targets); 3513 llvm::interleave( 3514 Opts.OMPTargetTriples, OS, 3515 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3516 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3517 } 3518 3519 if (!Opts.OMPHostIRFile.empty()) 3520 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3521 3522 if (Opts.OpenMPCUDAMode) 3523 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3524 3525 if (Opts.OpenMPCUDAForceFullRuntime) 3526 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3527 3528 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3529 // generated from CodeGenOptions. 3530 3531 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3532 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3533 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3534 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3535 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3536 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3537 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3538 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3539 3540 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3541 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3542 3543 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3544 for (const std::string &F : Opts.NoSanitizeFiles) 3545 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3546 3547 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3548 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3549 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3550 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3551 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3552 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3553 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3554 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3555 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3556 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3557 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3558 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3559 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3560 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3561 3562 if (Opts.getSignReturnAddressScope() == 3563 LangOptions::SignReturnAddressScopeKind::All) 3564 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3565 else if (Opts.getSignReturnAddressScope() == 3566 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3567 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3568 3569 if (Opts.getSignReturnAddressKey() == 3570 LangOptions::SignReturnAddressKeyKind::BKey) 3571 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3572 3573 if (Opts.CXXABI) 3574 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3575 SA); 3576 3577 if (Opts.RelativeCXXABIVTables) 3578 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3579 else 3580 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3581 3582 for (const auto &MP : Opts.MacroPrefixMap) 3583 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3584 } 3585 3586 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3587 InputKind IK, const llvm::Triple &T, 3588 std::vector<std::string> &Includes, 3589 DiagnosticsEngine &Diags) { 3590 unsigned NumErrorsBefore = Diags.getNumErrors(); 3591 3592 if (IK.getFormat() == InputKind::Precompiled || 3593 IK.getLanguage() == Language::LLVM_IR) { 3594 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3595 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3596 // what the input type is. 3597 if (Args.hasArg(OPT_fobjc_arc)) 3598 Opts.ObjCAutoRefCount = 1; 3599 // PICLevel and PIELevel are needed during code generation and this should 3600 // be set regardless of the input type. 3601 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3602 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3603 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3604 Diags, Opts.Sanitize); 3605 3606 return Diags.getNumErrors() == NumErrorsBefore; 3607 } 3608 3609 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3610 // FIXME: Should we really be parsing this for an Language::Asm input? 3611 3612 // FIXME: Cleanup per-file based stuff. 3613 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3614 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3615 LangStd = LangStandard::getLangKind(A->getValue()); 3616 if (LangStd == LangStandard::lang_unspecified) { 3617 Diags.Report(diag::err_drv_invalid_value) 3618 << A->getAsString(Args) << A->getValue(); 3619 // Report supported standards with short description. 3620 for (unsigned KindValue = 0; 3621 KindValue != LangStandard::lang_unspecified; 3622 ++KindValue) { 3623 const LangStandard &Std = LangStandard::getLangStandardForKind( 3624 static_cast<LangStandard::Kind>(KindValue)); 3625 if (IsInputCompatibleWithStandard(IK, Std)) { 3626 auto Diag = Diags.Report(diag::note_drv_use_standard); 3627 Diag << Std.getName() << Std.getDescription(); 3628 unsigned NumAliases = 0; 3629 #define LANGSTANDARD(id, name, lang, desc, features) 3630 #define LANGSTANDARD_ALIAS(id, alias) \ 3631 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3632 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3633 #include "clang/Basic/LangStandards.def" 3634 Diag << NumAliases; 3635 #define LANGSTANDARD(id, name, lang, desc, features) 3636 #define LANGSTANDARD_ALIAS(id, alias) \ 3637 if (KindValue == LangStandard::lang_##id) Diag << alias; 3638 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3639 #include "clang/Basic/LangStandards.def" 3640 } 3641 } 3642 } else { 3643 // Valid standard, check to make sure language and standard are 3644 // compatible. 3645 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3646 if (!IsInputCompatibleWithStandard(IK, Std)) { 3647 Diags.Report(diag::err_drv_argument_not_allowed_with) 3648 << A->getAsString(Args) << GetInputKindName(IK); 3649 } 3650 } 3651 } 3652 3653 // -cl-std only applies for OpenCL language standards. 3654 // Override the -std option in this case. 3655 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3656 LangStandard::Kind OpenCLLangStd 3657 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3658 .Cases("cl", "CL", LangStandard::lang_opencl10) 3659 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3660 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3661 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3662 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3663 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3664 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3665 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3666 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3667 .Default(LangStandard::lang_unspecified); 3668 3669 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3670 Diags.Report(diag::err_drv_invalid_value) 3671 << A->getAsString(Args) << A->getValue(); 3672 } 3673 else 3674 LangStd = OpenCLLangStd; 3675 } 3676 3677 // These need to be parsed now. They are used to set OpenCL defaults. 3678 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3679 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3680 3681 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3682 3683 // The key paths of codegen options defined in Options.td start with 3684 // "LangOpts->". Let's provide the expected variable name and type. 3685 LangOptions *LangOpts = &Opts; 3686 3687 #define LANG_OPTION_WITH_MARSHALLING( \ 3688 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3689 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3690 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3691 MERGER, EXTRACTOR, TABLE_INDEX) \ 3692 PARSE_OPTION_WITH_MARSHALLING( \ 3693 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3694 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3695 #include "clang/Driver/Options.inc" 3696 #undef LANG_OPTION_WITH_MARSHALLING 3697 3698 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3699 StringRef Name = A->getValue(); 3700 if (Name == "full" || Name == "branch") { 3701 Opts.CFProtectionBranch = 1; 3702 } 3703 } 3704 3705 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3706 !Args.hasArg(OPT_sycl_std_EQ)) { 3707 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3708 // provide -sycl-std=, we want to default it to whatever the default SYCL 3709 // version is. I could not find a way to express this with the options 3710 // tablegen because we still want this value to be SYCL_None when the user 3711 // is not in device or host mode. 3712 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3713 } 3714 3715 if (Opts.ObjC) { 3716 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3717 StringRef value = arg->getValue(); 3718 if (Opts.ObjCRuntime.tryParse(value)) 3719 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3720 } 3721 3722 if (Args.hasArg(OPT_fobjc_gc_only)) 3723 Opts.setGC(LangOptions::GCOnly); 3724 else if (Args.hasArg(OPT_fobjc_gc)) 3725 Opts.setGC(LangOptions::HybridGC); 3726 else if (Args.hasArg(OPT_fobjc_arc)) { 3727 Opts.ObjCAutoRefCount = 1; 3728 if (!Opts.ObjCRuntime.allowsARC()) 3729 Diags.Report(diag::err_arc_unsupported_on_runtime); 3730 } 3731 3732 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3733 // whether the feature is actually enabled. This is predominantly 3734 // determined by -fobjc-runtime, but we allow it to be overridden 3735 // from the command line for testing purposes. 3736 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3737 Opts.ObjCWeakRuntime = 1; 3738 else 3739 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3740 3741 // ObjCWeak determines whether __weak is actually enabled. 3742 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3743 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3744 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3745 assert(!Opts.ObjCWeak); 3746 } else if (Opts.getGC() != LangOptions::NonGC) { 3747 Diags.Report(diag::err_objc_weak_with_gc); 3748 } else if (!Opts.ObjCWeakRuntime) { 3749 Diags.Report(diag::err_objc_weak_unsupported); 3750 } else { 3751 Opts.ObjCWeak = 1; 3752 } 3753 } else if (Opts.ObjCAutoRefCount) { 3754 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3755 } 3756 3757 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3758 Opts.ObjCSubscriptingLegacyRuntime = 3759 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3760 } 3761 3762 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3763 // Check that the version has 1 to 3 components and the minor and patch 3764 // versions fit in two decimal digits. 3765 VersionTuple GNUCVer; 3766 bool Invalid = GNUCVer.tryParse(A->getValue()); 3767 unsigned Major = GNUCVer.getMajor(); 3768 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3769 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3770 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3771 Diags.Report(diag::err_drv_invalid_value) 3772 << A->getAsString(Args) << A->getValue(); 3773 } 3774 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3775 } 3776 3777 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3778 // no -fvisibility=* option. 3779 // This is the reason why '-fvisibility' needs to be always generated: 3780 // its absence implies '-mignore-xcoff-visibility'. 3781 // 3782 // Suppose the original cc1 command line does contain '-fvisibility default': 3783 // '-mignore-xcoff-visibility' should not be implied. 3784 // * If '-fvisibility' is not generated (as most options with default values 3785 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3786 // the command line semantics. 3787 // * If '-fvisibility' is generated regardless of its presence and value, 3788 // '-mignore-xcoff-visibility' won't be implied and the command line 3789 // semantics are kept intact. 3790 // 3791 // When the original cc1 command line does **not** contain '-fvisibility', 3792 // '-mignore-xcoff-visibility' is implied. The generated command line will 3793 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3794 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3795 // produce the same arguments. 3796 3797 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3798 !Args.hasArg(OPT_fvisibility))) 3799 Opts.IgnoreXCOFFVisibility = 1; 3800 3801 if (Args.hasArg(OPT_ftrapv)) { 3802 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3803 // Set the handler, if one is specified. 3804 Opts.OverflowHandler = 3805 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3806 } 3807 else if (Args.hasArg(OPT_fwrapv)) 3808 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3809 3810 Opts.MSCompatibilityVersion = 0; 3811 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3812 VersionTuple VT; 3813 if (VT.tryParse(A->getValue())) 3814 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3815 << A->getValue(); 3816 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3817 VT.getMinor().getValueOr(0) * 100000 + 3818 VT.getSubminor().getValueOr(0); 3819 } 3820 3821 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3822 // is specified, or -std is set to a conforming mode. 3823 // Trigraphs are disabled by default in c++1z onwards. 3824 // For z/OS, trigraphs are enabled by default (without regard to the above). 3825 Opts.Trigraphs = 3826 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3827 Opts.Trigraphs = 3828 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3829 3830 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3831 && Opts.OpenCLVersion == 200); 3832 3833 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3834 Opts.SYCLIsDevice || 3835 Args.hasArg(OPT_fconvergent_functions); 3836 3837 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3838 if (!Opts.NoBuiltin) 3839 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3840 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3841 ? 128 3842 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3843 if (Opts.FastRelaxedMath) 3844 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3845 llvm::sort(Opts.ModuleFeatures); 3846 3847 // -mrtd option 3848 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3849 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3850 Diags.Report(diag::err_drv_argument_not_allowed_with) 3851 << A->getSpelling() << "-fdefault-calling-conv"; 3852 else { 3853 if (T.getArch() != llvm::Triple::x86) 3854 Diags.Report(diag::err_drv_argument_not_allowed_with) 3855 << A->getSpelling() << T.getTriple(); 3856 else 3857 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3858 } 3859 } 3860 3861 // Check if -fopenmp is specified and set default version to 5.0. 3862 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3863 // Check if -fopenmp-simd is specified. 3864 bool IsSimdSpecified = 3865 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3866 /*Default=*/false); 3867 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3868 Opts.OpenMPUseTLS = 3869 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3870 Opts.OpenMPIsDevice = 3871 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3872 Opts.OpenMPIRBuilder = 3873 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3874 bool IsTargetSpecified = 3875 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3876 Opts.OpenMPTargetNewRuntime = 3877 Opts.OpenMPIsDevice && 3878 Args.hasArg(options::OPT_fopenmp_target_new_runtime); 3879 3880 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3881 3882 if (Opts.OpenMP || Opts.OpenMPSimd) { 3883 if (int Version = getLastArgIntValue( 3884 Args, OPT_fopenmp_version_EQ, 3885 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3886 Opts.OpenMP = Version; 3887 // Provide diagnostic when a given target is not expected to be an OpenMP 3888 // device or host. 3889 if (!Opts.OpenMPIsDevice) { 3890 switch (T.getArch()) { 3891 default: 3892 break; 3893 // Add unsupported host targets here: 3894 case llvm::Triple::nvptx: 3895 case llvm::Triple::nvptx64: 3896 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3897 break; 3898 } 3899 } 3900 } 3901 3902 // Set the flag to prevent the implementation from emitting device exception 3903 // handling code for those requiring so. 3904 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3905 Opts.OpenCLCPlusPlus) { 3906 3907 Opts.Exceptions = 0; 3908 Opts.CXXExceptions = 0; 3909 } 3910 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3911 Opts.OpenMPCUDANumSMs = 3912 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3913 Opts.OpenMPCUDANumSMs, Diags); 3914 Opts.OpenMPCUDABlocksPerSM = 3915 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3916 Opts.OpenMPCUDABlocksPerSM, Diags); 3917 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3918 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3919 Opts.OpenMPCUDAReductionBufNum, Diags); 3920 } 3921 3922 // Set the value of the debugging flag used in the new offloading device RTL. 3923 // Set either by a specific value or to a default if not specified. 3924 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3925 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3926 if (Opts.OpenMPTargetNewRuntime) { 3927 Opts.OpenMPTargetDebug = getLastArgIntValue( 3928 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3929 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3930 Opts.OpenMPTargetDebug = 1; 3931 } else { 3932 Diags.Report(diag::err_drv_debug_no_new_runtime); 3933 } 3934 } 3935 3936 if (Opts.OpenMPIsDevice && Opts.OpenMPTargetNewRuntime) { 3937 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3938 Opts.OpenMPTeamSubscription = true; 3939 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3940 Opts.OpenMPThreadSubscription = true; 3941 } 3942 3943 // Get the OpenMP target triples if any. 3944 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3945 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3946 auto getArchPtrSize = [](const llvm::Triple &T) { 3947 if (T.isArch16Bit()) 3948 return Arch16Bit; 3949 if (T.isArch32Bit()) 3950 return Arch32Bit; 3951 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3952 return Arch64Bit; 3953 }; 3954 3955 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3956 llvm::Triple TT(A->getValue(i)); 3957 3958 if (TT.getArch() == llvm::Triple::UnknownArch || 3959 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3960 TT.getArch() == llvm::Triple::nvptx || 3961 TT.getArch() == llvm::Triple::nvptx64 || 3962 TT.getArch() == llvm::Triple::amdgcn || 3963 TT.getArch() == llvm::Triple::x86 || 3964 TT.getArch() == llvm::Triple::x86_64)) 3965 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3966 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3967 Diags.Report(diag::err_drv_incompatible_omp_arch) 3968 << A->getValue(i) << T.str(); 3969 else 3970 Opts.OMPTargetTriples.push_back(TT); 3971 } 3972 } 3973 3974 // Get OpenMP host file path if any and report if a non existent file is 3975 // found 3976 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3977 Opts.OMPHostIRFile = A->getValue(); 3978 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3979 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3980 << Opts.OMPHostIRFile; 3981 } 3982 3983 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3984 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3985 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3986 3987 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3988 Opts.OpenMPCUDAForceFullRuntime = 3989 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3990 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3991 3992 // FIXME: Eliminate this dependency. 3993 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3994 OptSize = getOptimizationLevelSize(Args); 3995 Opts.Optimize = Opt != 0; 3996 Opts.OptimizeSize = OptSize != 0; 3997 3998 // This is the __NO_INLINE__ define, which just depends on things like the 3999 // optimization level and -fno-inline, not actually whether the backend has 4000 // inlining enabled. 4001 Opts.NoInlineDefine = !Opts.Optimize; 4002 if (Arg *InlineArg = Args.getLastArg( 4003 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4004 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4005 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4006 Opts.NoInlineDefine = true; 4007 4008 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4009 StringRef Val = A->getValue(); 4010 if (Val == "fast") 4011 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4012 else if (Val == "on") 4013 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4014 else if (Val == "off") 4015 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4016 else if (Val == "fast-honor-pragmas") 4017 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4018 else 4019 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4020 } 4021 4022 // Parse -fsanitize= arguments. 4023 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4024 Diags, Opts.Sanitize); 4025 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4026 std::vector<std::string> systemIgnorelists = 4027 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4028 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4029 systemIgnorelists.begin(), 4030 systemIgnorelists.end()); 4031 4032 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4033 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4034 4035 StringRef Ver = A->getValue(); 4036 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4037 unsigned Major, Minor = 0; 4038 4039 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4040 // y or y.0 (4 <= y <= current version). 4041 if (!VerParts.first.startswith("0") && 4042 !VerParts.first.getAsInteger(10, Major) && 4043 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4044 (Major == 3 ? VerParts.second.size() == 1 && 4045 !VerParts.second.getAsInteger(10, Minor) 4046 : VerParts.first.size() == Ver.size() || 4047 VerParts.second == "0")) { 4048 // Got a valid version number. 4049 if (Major == 3 && Minor <= 8) 4050 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4051 else if (Major <= 4) 4052 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4053 else if (Major <= 6) 4054 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4055 else if (Major <= 7) 4056 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4057 else if (Major <= 9) 4058 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4059 else if (Major <= 11) 4060 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4061 else if (Major <= 12) 4062 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4063 } else if (Ver != "latest") { 4064 Diags.Report(diag::err_drv_invalid_value) 4065 << A->getAsString(Args) << A->getValue(); 4066 } 4067 } 4068 4069 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4070 StringRef SignScope = A->getValue(); 4071 4072 if (SignScope.equals_insensitive("none")) 4073 Opts.setSignReturnAddressScope( 4074 LangOptions::SignReturnAddressScopeKind::None); 4075 else if (SignScope.equals_insensitive("all")) 4076 Opts.setSignReturnAddressScope( 4077 LangOptions::SignReturnAddressScopeKind::All); 4078 else if (SignScope.equals_insensitive("non-leaf")) 4079 Opts.setSignReturnAddressScope( 4080 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4081 else 4082 Diags.Report(diag::err_drv_invalid_value) 4083 << A->getAsString(Args) << SignScope; 4084 4085 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4086 StringRef SignKey = A->getValue(); 4087 if (!SignScope.empty() && !SignKey.empty()) { 4088 if (SignKey.equals_insensitive("a_key")) 4089 Opts.setSignReturnAddressKey( 4090 LangOptions::SignReturnAddressKeyKind::AKey); 4091 else if (SignKey.equals_insensitive("b_key")) 4092 Opts.setSignReturnAddressKey( 4093 LangOptions::SignReturnAddressKeyKind::BKey); 4094 else 4095 Diags.Report(diag::err_drv_invalid_value) 4096 << A->getAsString(Args) << SignKey; 4097 } 4098 } 4099 } 4100 4101 // The value can be empty, which indicates the system default should be used. 4102 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4103 if (!CXXABI.empty()) { 4104 if (!TargetCXXABI::isABI(CXXABI)) { 4105 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4106 } else { 4107 auto Kind = TargetCXXABI::getKind(CXXABI); 4108 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4109 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4110 else 4111 Opts.CXXABI = Kind; 4112 } 4113 } 4114 4115 Opts.RelativeCXXABIVTables = 4116 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4117 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4118 TargetCXXABI::usesRelativeVTables(T)); 4119 4120 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4121 auto Split = StringRef(A).split('='); 4122 Opts.MacroPrefixMap.insert( 4123 {std::string(Split.first), std::string(Split.second)}); 4124 } 4125 4126 return Diags.getNumErrors() == NumErrorsBefore; 4127 } 4128 4129 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4130 switch (Action) { 4131 case frontend::ASTDeclList: 4132 case frontend::ASTDump: 4133 case frontend::ASTPrint: 4134 case frontend::ASTView: 4135 case frontend::EmitAssembly: 4136 case frontend::EmitBC: 4137 case frontend::EmitHTML: 4138 case frontend::EmitLLVM: 4139 case frontend::EmitLLVMOnly: 4140 case frontend::EmitCodeGenOnly: 4141 case frontend::EmitObj: 4142 case frontend::FixIt: 4143 case frontend::GenerateModule: 4144 case frontend::GenerateModuleInterface: 4145 case frontend::GenerateHeaderModule: 4146 case frontend::GeneratePCH: 4147 case frontend::GenerateInterfaceStubs: 4148 case frontend::ParseSyntaxOnly: 4149 case frontend::ModuleFileInfo: 4150 case frontend::VerifyPCH: 4151 case frontend::PluginAction: 4152 case frontend::RewriteObjC: 4153 case frontend::RewriteTest: 4154 case frontend::RunAnalysis: 4155 case frontend::TemplightDump: 4156 case frontend::MigrateSource: 4157 return false; 4158 4159 case frontend::DumpCompilerOptions: 4160 case frontend::DumpRawTokens: 4161 case frontend::DumpTokens: 4162 case frontend::InitOnly: 4163 case frontend::PrintPreamble: 4164 case frontend::PrintPreprocessedInput: 4165 case frontend::RewriteMacros: 4166 case frontend::RunPreprocessorOnly: 4167 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4168 return true; 4169 } 4170 llvm_unreachable("invalid frontend action"); 4171 } 4172 4173 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4174 SmallVectorImpl<const char *> &Args, 4175 CompilerInvocation::StringAllocator SA, 4176 const LangOptions &LangOpts, 4177 const FrontendOptions &FrontendOpts, 4178 const CodeGenOptions &CodeGenOpts) { 4179 PreprocessorOptions *PreprocessorOpts = &Opts; 4180 4181 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4182 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4183 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4184 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4185 MERGER, EXTRACTOR, TABLE_INDEX) \ 4186 GENERATE_OPTION_WITH_MARSHALLING( \ 4187 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4188 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4189 #include "clang/Driver/Options.inc" 4190 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4191 4192 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4193 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4194 4195 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4196 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4197 4198 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4199 GenerateArg(Args, OPT_preamble_bytes_EQ, 4200 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4201 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4202 SA); 4203 4204 for (const auto &M : Opts.Macros) { 4205 // Don't generate __CET__ macro definitions. They are implied by the 4206 // -fcf-protection option that is generated elsewhere. 4207 if (M.first == "__CET__=1" && !M.second && 4208 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4209 continue; 4210 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4211 !CodeGenOpts.CFProtectionBranch) 4212 continue; 4213 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4214 CodeGenOpts.CFProtectionBranch) 4215 continue; 4216 4217 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4218 } 4219 4220 for (const auto &I : Opts.Includes) { 4221 // Don't generate OpenCL includes. They are implied by other flags that are 4222 // generated elsewhere. 4223 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4224 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4225 I == "opencl-c.h")) 4226 continue; 4227 4228 GenerateArg(Args, OPT_include, I, SA); 4229 } 4230 4231 for (const auto &CI : Opts.ChainedIncludes) 4232 GenerateArg(Args, OPT_chain_include, CI, SA); 4233 4234 for (const auto &RF : Opts.RemappedFiles) 4235 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4236 4237 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4238 // generated elsewhere. 4239 } 4240 4241 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4242 DiagnosticsEngine &Diags, 4243 frontend::ActionKind Action, 4244 const FrontendOptions &FrontendOpts) { 4245 unsigned NumErrorsBefore = Diags.getNumErrors(); 4246 4247 PreprocessorOptions *PreprocessorOpts = &Opts; 4248 4249 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4250 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4251 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4252 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4253 MERGER, EXTRACTOR, TABLE_INDEX) \ 4254 PARSE_OPTION_WITH_MARSHALLING( \ 4255 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4256 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4257 #include "clang/Driver/Options.inc" 4258 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4259 4260 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4261 Args.hasArg(OPT_pch_through_hdrstop_use); 4262 4263 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4264 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4265 4266 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4267 StringRef Value(A->getValue()); 4268 size_t Comma = Value.find(','); 4269 unsigned Bytes = 0; 4270 unsigned EndOfLine = 0; 4271 4272 if (Comma == StringRef::npos || 4273 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4274 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4275 Diags.Report(diag::err_drv_preamble_format); 4276 else { 4277 Opts.PrecompiledPreambleBytes.first = Bytes; 4278 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4279 } 4280 } 4281 4282 // Add the __CET__ macro if a CFProtection option is set. 4283 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4284 StringRef Name = A->getValue(); 4285 if (Name == "branch") 4286 Opts.addMacroDef("__CET__=1"); 4287 else if (Name == "return") 4288 Opts.addMacroDef("__CET__=2"); 4289 else if (Name == "full") 4290 Opts.addMacroDef("__CET__=3"); 4291 } 4292 4293 // Add macros from the command line. 4294 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4295 if (A->getOption().matches(OPT_D)) 4296 Opts.addMacroDef(A->getValue()); 4297 else 4298 Opts.addMacroUndef(A->getValue()); 4299 } 4300 4301 // Add the ordered list of -includes. 4302 for (const auto *A : Args.filtered(OPT_include)) 4303 Opts.Includes.emplace_back(A->getValue()); 4304 4305 for (const auto *A : Args.filtered(OPT_chain_include)) 4306 Opts.ChainedIncludes.emplace_back(A->getValue()); 4307 4308 for (const auto *A : Args.filtered(OPT_remap_file)) { 4309 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4310 4311 if (Split.second.empty()) { 4312 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4313 continue; 4314 } 4315 4316 Opts.addRemappedFile(Split.first, Split.second); 4317 } 4318 4319 // Always avoid lexing editor placeholders when we're just running the 4320 // preprocessor as we never want to emit the 4321 // "editor placeholder in source file" error in PP only mode. 4322 if (isStrictlyPreprocessorAction(Action)) 4323 Opts.LexEditorPlaceholders = false; 4324 4325 return Diags.getNumErrors() == NumErrorsBefore; 4326 } 4327 4328 static void GeneratePreprocessorOutputArgs( 4329 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4330 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4331 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4332 4333 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4334 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4335 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4336 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4337 MERGER, EXTRACTOR, TABLE_INDEX) \ 4338 GENERATE_OPTION_WITH_MARSHALLING( \ 4339 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4340 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4341 #include "clang/Driver/Options.inc" 4342 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4343 4344 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4345 if (Generate_dM) 4346 GenerateArg(Args, OPT_dM, SA); 4347 if (!Generate_dM && Opts.ShowMacros) 4348 GenerateArg(Args, OPT_dD, SA); 4349 } 4350 4351 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4352 ArgList &Args, DiagnosticsEngine &Diags, 4353 frontend::ActionKind Action) { 4354 unsigned NumErrorsBefore = Diags.getNumErrors(); 4355 4356 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4357 4358 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4359 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4360 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4361 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4362 MERGER, EXTRACTOR, TABLE_INDEX) \ 4363 PARSE_OPTION_WITH_MARSHALLING( \ 4364 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4365 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4366 #include "clang/Driver/Options.inc" 4367 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4368 4369 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4370 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4371 4372 return Diags.getNumErrors() == NumErrorsBefore; 4373 } 4374 4375 static void GenerateTargetArgs(const TargetOptions &Opts, 4376 SmallVectorImpl<const char *> &Args, 4377 CompilerInvocation::StringAllocator SA) { 4378 const TargetOptions *TargetOpts = &Opts; 4379 #define TARGET_OPTION_WITH_MARSHALLING( \ 4380 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4381 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4382 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4383 MERGER, EXTRACTOR, TABLE_INDEX) \ 4384 GENERATE_OPTION_WITH_MARSHALLING( \ 4385 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4386 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4387 #include "clang/Driver/Options.inc" 4388 #undef TARGET_OPTION_WITH_MARSHALLING 4389 4390 if (!Opts.SDKVersion.empty()) 4391 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4392 SA); 4393 } 4394 4395 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4396 DiagnosticsEngine &Diags) { 4397 unsigned NumErrorsBefore = Diags.getNumErrors(); 4398 4399 TargetOptions *TargetOpts = &Opts; 4400 4401 #define TARGET_OPTION_WITH_MARSHALLING( \ 4402 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4403 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4404 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4405 MERGER, EXTRACTOR, TABLE_INDEX) \ 4406 PARSE_OPTION_WITH_MARSHALLING( \ 4407 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4408 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4409 #include "clang/Driver/Options.inc" 4410 #undef TARGET_OPTION_WITH_MARSHALLING 4411 4412 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4413 llvm::VersionTuple Version; 4414 if (Version.tryParse(A->getValue())) 4415 Diags.Report(diag::err_drv_invalid_value) 4416 << A->getAsString(Args) << A->getValue(); 4417 else 4418 Opts.SDKVersion = Version; 4419 } 4420 4421 return Diags.getNumErrors() == NumErrorsBefore; 4422 } 4423 4424 bool CompilerInvocation::CreateFromArgsImpl( 4425 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4426 DiagnosticsEngine &Diags, const char *Argv0) { 4427 unsigned NumErrorsBefore = Diags.getNumErrors(); 4428 4429 // Parse the arguments. 4430 const OptTable &Opts = getDriverOptTable(); 4431 const unsigned IncludedFlagsBitmask = options::CC1Option; 4432 unsigned MissingArgIndex, MissingArgCount; 4433 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4434 MissingArgCount, IncludedFlagsBitmask); 4435 LangOptions &LangOpts = *Res.getLangOpts(); 4436 4437 // Check for missing argument error. 4438 if (MissingArgCount) 4439 Diags.Report(diag::err_drv_missing_argument) 4440 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4441 4442 // Issue errors on unknown arguments. 4443 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4444 auto ArgString = A->getAsString(Args); 4445 std::string Nearest; 4446 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4447 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4448 else 4449 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4450 << ArgString << Nearest; 4451 } 4452 4453 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4454 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4455 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4456 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4457 /*DefaultDiagColor=*/false); 4458 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4459 // FIXME: We shouldn't have to pass the DashX option around here 4460 InputKind DashX = Res.getFrontendOpts().DashX; 4461 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4462 llvm::Triple T(Res.getTargetOpts().Triple); 4463 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4464 Res.getFileSystemOpts().WorkingDir); 4465 4466 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4467 Diags); 4468 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4469 LangOpts.ObjCExceptions = 1; 4470 4471 if (LangOpts.CUDA) { 4472 // During CUDA device-side compilation, the aux triple is the 4473 // triple used for host compilation. 4474 if (LangOpts.CUDAIsDevice) 4475 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4476 } 4477 4478 // Set the triple of the host for OpenMP device compile. 4479 if (LangOpts.OpenMPIsDevice) 4480 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4481 4482 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4483 Res.getFrontendOpts().OutputFile, LangOpts); 4484 4485 // FIXME: Override value name discarding when asan or msan is used because the 4486 // backend passes depend on the name of the alloca in order to print out 4487 // names. 4488 Res.getCodeGenOpts().DiscardValueNames &= 4489 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4490 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4491 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4492 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4493 4494 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4495 Res.getFrontendOpts().ProgramAction, 4496 Res.getFrontendOpts()); 4497 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4498 Res.getFrontendOpts().ProgramAction); 4499 4500 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4501 Res.getFrontendOpts().ProgramAction, 4502 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4503 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4504 Res.getDependencyOutputOpts().Targets.empty()) 4505 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4506 4507 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4508 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4509 !Res.getLangOpts()->Sanitize.empty()) { 4510 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4511 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4512 } 4513 4514 // Store the command-line for using in the CodeView backend. 4515 Res.getCodeGenOpts().Argv0 = Argv0; 4516 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4517 4518 FixupInvocation(Res, Diags, Args, DashX); 4519 4520 return Diags.getNumErrors() == NumErrorsBefore; 4521 } 4522 4523 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4524 ArrayRef<const char *> CommandLineArgs, 4525 DiagnosticsEngine &Diags, 4526 const char *Argv0) { 4527 CompilerInvocation DummyInvocation; 4528 4529 return RoundTrip( 4530 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4531 DiagnosticsEngine &Diags, const char *Argv0) { 4532 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4533 }, 4534 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4535 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4536 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4537 } 4538 4539 std::string CompilerInvocation::getModuleHash() const { 4540 // FIXME: Consider using SHA1 instead of MD5. 4541 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4542 4543 // Note: For QoI reasons, the things we use as a hash here should all be 4544 // dumped via the -module-info flag. 4545 4546 // Start the signature with the compiler version. 4547 HBuilder.add(getClangFullRepositoryVersion()); 4548 4549 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4550 // and getClangFullRepositoryVersion() doesn't include git revision. 4551 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4552 4553 // Extend the signature with the language options 4554 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4555 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4556 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4557 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4558 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4559 #include "clang/Basic/LangOptions.def" 4560 4561 HBuilder.addRange(LangOpts->ModuleFeatures); 4562 4563 HBuilder.add(LangOpts->ObjCRuntime); 4564 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4565 4566 // Extend the signature with the target options. 4567 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4568 TargetOpts->ABI); 4569 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4570 4571 // Extend the signature with preprocessor options. 4572 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4573 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4574 4575 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4576 for (const auto &Macro : getPreprocessorOpts().Macros) { 4577 // If we're supposed to ignore this macro for the purposes of modules, 4578 // don't put it into the hash. 4579 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4580 // Check whether we're ignoring this macro. 4581 StringRef MacroDef = Macro.first; 4582 if (hsOpts.ModulesIgnoreMacros.count( 4583 llvm::CachedHashString(MacroDef.split('=').first))) 4584 continue; 4585 } 4586 4587 HBuilder.add(Macro); 4588 } 4589 4590 // Extend the signature with the sysroot and other header search options. 4591 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4592 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4593 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4594 hsOpts.ModulesValidateDiagnosticOptions); 4595 HBuilder.add(hsOpts.ResourceDir); 4596 4597 if (hsOpts.ModulesStrictContextHash) { 4598 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4599 HBuilder.addRange(hsOpts.UserEntries); 4600 4601 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4602 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4603 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4604 HBuilder.add(diagOpts.get##Name()); 4605 #include "clang/Basic/DiagnosticOptions.def" 4606 #undef DIAGOPT 4607 #undef ENUM_DIAGOPT 4608 } 4609 4610 // Extend the signature with the user build path. 4611 HBuilder.add(hsOpts.ModuleUserBuildPath); 4612 4613 // Extend the signature with the module file extensions. 4614 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4615 ext->hashExtension(HBuilder); 4616 4617 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4618 // affects the debug info in the PCM. 4619 if (getCodeGenOpts().DebugTypeExtRefs) 4620 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4621 4622 // Extend the signature with the enabled sanitizers, if at least one is 4623 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4624 SanitizerSet SanHash = LangOpts->Sanitize; 4625 SanHash.clear(getPPTransparentSanitizers()); 4626 if (!SanHash.empty()) 4627 HBuilder.add(SanHash.Mask); 4628 4629 llvm::MD5::MD5Result Result; 4630 HBuilder.getHasher().final(Result); 4631 uint64_t Hash = Result.high() ^ Result.low(); 4632 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4633 } 4634 4635 void CompilerInvocation::generateCC1CommandLine( 4636 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4637 llvm::Triple T(TargetOpts->Triple); 4638 4639 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4640 GenerateMigratorArgs(MigratorOpts, Args, SA); 4641 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4642 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4643 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4644 GenerateTargetArgs(*TargetOpts, Args, SA); 4645 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4646 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4647 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4648 &*LangOpts); 4649 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4650 CodeGenOpts); 4651 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4652 FrontendOpts.ProgramAction); 4653 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4654 } 4655 4656 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4657 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4658 DiagnosticsEngine &Diags) { 4659 return createVFSFromCompilerInvocation(CI, Diags, 4660 llvm::vfs::getRealFileSystem()); 4661 } 4662 4663 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4664 clang::createVFSFromCompilerInvocation( 4665 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4666 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4667 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4668 return BaseFS; 4669 4670 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4671 // earlier vfs files are on the bottom 4672 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4673 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4674 Result->getBufferForFile(File); 4675 if (!Buffer) { 4676 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4677 continue; 4678 } 4679 4680 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4681 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4682 /*DiagContext*/ nullptr, Result); 4683 if (!FS) { 4684 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4685 continue; 4686 } 4687 4688 Result = FS; 4689 } 4690 return Result; 4691 } 4692