1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <memory> 97 #include <string> 98 #include <tuple> 99 #include <type_traits> 100 #include <utility> 101 #include <vector> 102 103 using namespace clang; 104 using namespace driver; 105 using namespace options; 106 using namespace llvm::opt; 107 108 //===----------------------------------------------------------------------===// 109 // Initialization. 110 //===----------------------------------------------------------------------===// 111 112 CompilerInvocationRefBase::CompilerInvocationRefBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()), 117 AnalyzerOpts(new AnalyzerOptions()) {} 118 119 CompilerInvocationRefBase::CompilerInvocationRefBase( 120 const CompilerInvocationRefBase &X) 121 : LangOpts(new LangOptions(*X.getLangOpts())), 122 TargetOpts(new TargetOptions(X.getTargetOpts())), 123 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 124 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 125 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 126 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase( 129 CompilerInvocationRefBase &&X) = default; 130 131 CompilerInvocationRefBase & 132 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 133 LangOpts.swap(X.LangOpts); 134 TargetOpts.swap(X.TargetOpts); 135 DiagnosticOpts.swap(X.DiagnosticOpts); 136 HeaderSearchOpts.swap(X.HeaderSearchOpts); 137 PreprocessorOpts.swap(X.PreprocessorOpts); 138 AnalyzerOpts.swap(X.AnalyzerOpts); 139 return *this; 140 } 141 142 CompilerInvocationRefBase & 143 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 144 145 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 146 147 //===----------------------------------------------------------------------===// 148 // Normalizers 149 //===----------------------------------------------------------------------===// 150 151 #define SIMPLE_ENUM_VALUE_TABLE 152 #include "clang/Driver/Options.inc" 153 #undef SIMPLE_ENUM_VALUE_TABLE 154 155 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 156 unsigned TableIndex, 157 const ArgList &Args, 158 DiagnosticsEngine &Diags) { 159 if (Args.hasArg(Opt)) 160 return true; 161 return None; 162 } 163 164 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 165 const ArgList &Args, 166 DiagnosticsEngine &) { 167 if (Args.hasArg(Opt)) 168 return false; 169 return None; 170 } 171 172 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 173 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 174 /// unnecessary template instantiations and just ignore it with a variadic 175 /// argument. 176 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 177 const char *Spelling, 178 CompilerInvocation::StringAllocator, 179 Option::OptionClass, unsigned, /*T*/...) { 180 Args.push_back(Spelling); 181 } 182 183 template <typename T> static constexpr bool is_uint64_t_convertible() { 184 return !std::is_same<T, uint64_t>::value && 185 llvm::is_integral_or_enum<T>::value; 186 } 187 188 template <typename T, 189 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 190 static auto makeFlagToValueNormalizer(T Value) { 191 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 192 DiagnosticsEngine &) -> Optional<T> { 193 if (Args.hasArg(Opt)) 194 return Value; 195 return None; 196 }; 197 } 198 199 template <typename T, 200 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 201 static auto makeFlagToValueNormalizer(T Value) { 202 return makeFlagToValueNormalizer(uint64_t(Value)); 203 } 204 205 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 206 OptSpecifier OtherOpt) { 207 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 208 const ArgList &Args, 209 DiagnosticsEngine &) -> Optional<bool> { 210 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 211 return A->getOption().matches(Opt) ? Value : OtherValue; 212 } 213 return None; 214 }; 215 } 216 217 static auto makeBooleanOptionDenormalizer(bool Value) { 218 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 219 CompilerInvocation::StringAllocator, Option::OptionClass, 220 unsigned, bool KeyPath) { 221 if (KeyPath == Value) 222 Args.push_back(Spelling); 223 }; 224 } 225 226 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 227 const char *Spelling, 228 CompilerInvocation::StringAllocator SA, 229 Option::OptionClass OptClass, unsigned, 230 const Twine &Value) { 231 switch (OptClass) { 232 case Option::SeparateClass: 233 case Option::JoinedOrSeparateClass: 234 case Option::JoinedAndSeparateClass: 235 Args.push_back(Spelling); 236 Args.push_back(SA(Value)); 237 break; 238 case Option::JoinedClass: 239 case Option::CommaJoinedClass: 240 Args.push_back(SA(Twine(Spelling) + Value)); 241 break; 242 default: 243 llvm_unreachable("Cannot denormalize an option with option class " 244 "incompatible with string denormalization."); 245 } 246 } 247 248 template <typename T> 249 static void 250 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 251 CompilerInvocation::StringAllocator SA, 252 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 253 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 254 } 255 256 static Optional<SimpleEnumValue> 257 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 258 for (int I = 0, E = Table.Size; I != E; ++I) 259 if (Name == Table.Table[I].Name) 260 return Table.Table[I]; 261 262 return None; 263 } 264 265 static Optional<SimpleEnumValue> 266 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 267 for (int I = 0, E = Table.Size; I != E; ++I) 268 if (Value == Table.Table[I].Value) 269 return Table.Table[I]; 270 271 return None; 272 } 273 274 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 275 unsigned TableIndex, 276 const ArgList &Args, 277 DiagnosticsEngine &Diags) { 278 assert(TableIndex < SimpleEnumValueTablesSize); 279 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 280 281 auto *Arg = Args.getLastArg(Opt); 282 if (!Arg) 283 return None; 284 285 StringRef ArgValue = Arg->getValue(); 286 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 287 return MaybeEnumVal->Value; 288 289 Diags.Report(diag::err_drv_invalid_value) 290 << Arg->getAsString(Args) << ArgValue; 291 return None; 292 } 293 294 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 295 const char *Spelling, 296 CompilerInvocation::StringAllocator SA, 297 Option::OptionClass OptClass, 298 unsigned TableIndex, unsigned Value) { 299 assert(TableIndex < SimpleEnumValueTablesSize); 300 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 301 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 302 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 303 MaybeEnumVal->Name); 304 } else { 305 llvm_unreachable("The simple enum value was not correctly defined in " 306 "the tablegen option description"); 307 } 308 } 309 310 template <typename T> 311 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, T Value) { 316 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 317 static_cast<unsigned>(Value)); 318 } 319 320 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 321 const ArgList &Args, 322 DiagnosticsEngine &Diags) { 323 auto *Arg = Args.getLastArg(Opt); 324 if (!Arg) 325 return None; 326 return std::string(Arg->getValue()); 327 } 328 329 template <typename IntTy> 330 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 331 const ArgList &Args, 332 DiagnosticsEngine &Diags) { 333 auto *Arg = Args.getLastArg(Opt); 334 if (!Arg) 335 return None; 336 IntTy Res; 337 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 338 Diags.Report(diag::err_drv_invalid_int_value) 339 << Arg->getAsString(Args) << Arg->getValue(); 340 return None; 341 } 342 return Res; 343 } 344 345 static Optional<std::vector<std::string>> 346 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 347 DiagnosticsEngine &) { 348 return Args.getAllArgValues(Opt); 349 } 350 351 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 352 const char *Spelling, 353 CompilerInvocation::StringAllocator SA, 354 Option::OptionClass OptClass, 355 unsigned TableIndex, 356 const std::vector<std::string> &Values) { 357 switch (OptClass) { 358 case Option::CommaJoinedClass: { 359 std::string CommaJoinedValue; 360 if (!Values.empty()) { 361 CommaJoinedValue.append(Values.front()); 362 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 363 CommaJoinedValue.append(","); 364 CommaJoinedValue.append(Value); 365 } 366 } 367 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 368 TableIndex, CommaJoinedValue); 369 break; 370 } 371 case Option::JoinedClass: 372 case Option::SeparateClass: 373 case Option::JoinedOrSeparateClass: 374 for (const std::string &Value : Values) 375 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 376 break; 377 default: 378 llvm_unreachable("Cannot denormalize an option with option class " 379 "incompatible with string vector denormalization."); 380 } 381 } 382 383 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 384 const ArgList &Args, 385 DiagnosticsEngine &Diags) { 386 auto *Arg = Args.getLastArg(Opt); 387 if (!Arg) 388 return None; 389 return llvm::Triple::normalize(Arg->getValue()); 390 } 391 392 template <typename T, typename U> 393 static T mergeForwardValue(T KeyPath, U Value) { 394 return static_cast<T>(Value); 395 } 396 397 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 398 return KeyPath | Value; 399 } 400 401 template <typename T> static T extractForwardValue(T KeyPath) { 402 return KeyPath; 403 } 404 405 template <typename T, typename U, U Value> 406 static T extractMaskValue(T KeyPath) { 407 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 408 } 409 410 #define PARSE_OPTION_WITH_MARSHALLING( \ 411 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 412 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 413 if ((FLAGS)&options::CC1Option) { \ 414 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 415 if (IMPLIED_CHECK) \ 416 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 417 if (SHOULD_PARSE) \ 418 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 419 KEYPATH = \ 420 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 421 } 422 423 // Capture the extracted value as a lambda argument to avoid potential issues 424 // with lifetime extension of the reference. 425 #define GENERATE_OPTION_WITH_MARSHALLING( \ 426 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 427 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 428 TABLE_INDEX) \ 429 if ((FLAGS)&options::CC1Option) { \ 430 [&](const auto &Extracted) { \ 431 if (ALWAYS_EMIT || \ 432 (Extracted != \ 433 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 434 : (DEFAULT_VALUE)))) \ 435 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 436 TABLE_INDEX, Extracted); \ 437 }(EXTRACTOR(KEYPATH)); \ 438 } 439 440 static const StringRef GetInputKindName(InputKind IK); 441 442 static bool FixupInvocation(CompilerInvocation &Invocation, 443 DiagnosticsEngine &Diags, const ArgList &Args, 444 InputKind IK) { 445 unsigned NumErrorsBefore = Diags.getNumErrors(); 446 447 LangOptions &LangOpts = *Invocation.getLangOpts(); 448 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 449 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 450 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 451 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 452 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 453 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 454 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 455 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 456 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 457 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 458 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 459 LangOpts.CurrentModule = LangOpts.ModuleName; 460 461 llvm::Triple T(TargetOpts.Triple); 462 llvm::Triple::ArchType Arch = T.getArch(); 463 464 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 465 466 if (LangOpts.getExceptionHandling() != 467 LangOptions::ExceptionHandlingKind::None && 468 T.isWindowsMSVCEnvironment()) 469 Diags.Report(diag::err_fe_invalid_exception_model) 470 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 471 472 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 473 Diags.Report(diag::warn_c_kext); 474 475 if (Args.hasArg(OPT_fconcepts_ts)) 476 Diags.Report(diag::warn_fe_concepts_ts_flag); 477 478 if (LangOpts.NewAlignOverride && 479 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 480 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 481 Diags.Report(diag::err_fe_invalid_alignment) 482 << A->getAsString(Args) << A->getValue(); 483 LangOpts.NewAlignOverride = 0; 484 } 485 486 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 487 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 488 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 489 << "-fsycl-is-host"; 490 491 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 492 Diags.Report(diag::err_drv_argument_not_allowed_with) 493 << "-fgnu89-inline" << GetInputKindName(IK); 494 495 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 496 Diags.Report(diag::warn_ignored_hip_only_option) 497 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 498 499 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 500 Diags.Report(diag::warn_ignored_hip_only_option) 501 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 502 503 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 504 // This option should be deprecated for CL > 1.0 because 505 // this option was added for compatibility with OpenCL 1.0. 506 if (Args.getLastArg(OPT_cl_strict_aliasing) && 507 (LangOpts.getOpenCLCompatibleVersion() > 100)) 508 Diags.Report(diag::warn_option_invalid_ocl_version) 509 << LangOpts.getOpenCLVersionString() 510 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 511 512 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 513 auto DefaultCC = LangOpts.getDefaultCallingConv(); 514 515 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 516 DefaultCC == LangOptions::DCC_StdCall) && 517 Arch != llvm::Triple::x86; 518 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 519 DefaultCC == LangOptions::DCC_RegCall) && 520 !T.isX86(); 521 if (emitError) 522 Diags.Report(diag::err_drv_argument_not_allowed_with) 523 << A->getSpelling() << T.getTriple(); 524 } 525 526 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 527 Diags.Report(diag::err_drv_argument_only_allowed_with) 528 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 529 << "-fno-legacy-pass-manager"; 530 531 return Diags.getNumErrors() == NumErrorsBefore; 532 } 533 534 //===----------------------------------------------------------------------===// 535 // Deserialization (from args) 536 //===----------------------------------------------------------------------===// 537 538 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 539 DiagnosticsEngine &Diags) { 540 unsigned DefaultOpt = llvm::CodeGenOpt::None; 541 if ((IK.getLanguage() == Language::OpenCL || 542 IK.getLanguage() == Language::OpenCLCXX) && 543 !Args.hasArg(OPT_cl_opt_disable)) 544 DefaultOpt = llvm::CodeGenOpt::Default; 545 546 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 547 if (A->getOption().matches(options::OPT_O0)) 548 return llvm::CodeGenOpt::None; 549 550 if (A->getOption().matches(options::OPT_Ofast)) 551 return llvm::CodeGenOpt::Aggressive; 552 553 assert(A->getOption().matches(options::OPT_O)); 554 555 StringRef S(A->getValue()); 556 if (S == "s" || S == "z") 557 return llvm::CodeGenOpt::Default; 558 559 if (S == "g") 560 return llvm::CodeGenOpt::Less; 561 562 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 563 } 564 565 return DefaultOpt; 566 } 567 568 static unsigned getOptimizationLevelSize(ArgList &Args) { 569 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 570 if (A->getOption().matches(options::OPT_O)) { 571 switch (A->getValue()[0]) { 572 default: 573 return 0; 574 case 's': 575 return 1; 576 case 'z': 577 return 2; 578 } 579 } 580 } 581 return 0; 582 } 583 584 static void GenerateArg(SmallVectorImpl<const char *> &Args, 585 llvm::opt::OptSpecifier OptSpecifier, 586 CompilerInvocation::StringAllocator SA) { 587 Option Opt = getDriverOptTable().getOption(OptSpecifier); 588 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 589 Option::OptionClass::FlagClass, 0); 590 } 591 592 static void GenerateArg(SmallVectorImpl<const char *> &Args, 593 llvm::opt::OptSpecifier OptSpecifier, 594 const Twine &Value, 595 CompilerInvocation::StringAllocator SA) { 596 Option Opt = getDriverOptTable().getOption(OptSpecifier); 597 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 598 Opt.getKind(), 0, Value); 599 } 600 601 // Parse command line arguments into CompilerInvocation. 602 using ParseFn = 603 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 604 DiagnosticsEngine &, const char *)>; 605 606 // Generate command line arguments from CompilerInvocation. 607 using GenerateFn = llvm::function_ref<void( 608 CompilerInvocation &, SmallVectorImpl<const char *> &, 609 CompilerInvocation::StringAllocator)>; 610 611 // May perform round-trip of command line arguments. By default, the round-trip 612 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 613 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 614 // command line flags. 615 // During round-trip, the command line arguments are parsed into a dummy 616 // instance of CompilerInvocation which is used to generate the command line 617 // arguments again. The real CompilerInvocation instance is then created by 618 // parsing the generated arguments, not the original ones. 619 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 620 CompilerInvocation &RealInvocation, 621 CompilerInvocation &DummyInvocation, 622 ArrayRef<const char *> CommandLineArgs, 623 DiagnosticsEngine &Diags, const char *Argv0) { 624 // FIXME: Switch to '#ifndef NDEBUG' when possible. 625 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 626 bool DoRoundTripDefault = true; 627 #else 628 bool DoRoundTripDefault = false; 629 #endif 630 631 bool DoRoundTrip = DoRoundTripDefault; 632 for (const auto *Arg : CommandLineArgs) { 633 if (Arg == StringRef("-round-trip-args")) 634 DoRoundTrip = true; 635 if (Arg == StringRef("-no-round-trip-args")) 636 DoRoundTrip = false; 637 } 638 639 // If round-trip was not requested, simply run the parser with the real 640 // invocation diagnostics. 641 if (!DoRoundTrip) 642 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 643 644 // Serializes quoted (and potentially escaped) arguments. 645 auto SerializeArgs = [](ArrayRef<const char *> Args) { 646 std::string Buffer; 647 llvm::raw_string_ostream OS(Buffer); 648 for (const char *Arg : Args) { 649 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 650 OS << ' '; 651 } 652 OS.flush(); 653 return Buffer; 654 }; 655 656 // Setup a dummy DiagnosticsEngine. 657 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 658 DummyDiags.setClient(new TextDiagnosticBuffer()); 659 660 // Run the first parse on the original arguments with the dummy invocation and 661 // diagnostics. 662 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 663 DummyDiags.getNumWarnings() != 0) { 664 // If the first parse did not succeed, it must be user mistake (invalid 665 // command line arguments). We won't be able to generate arguments that 666 // would reproduce the same result. Let's fail again with the real 667 // invocation and diagnostics, so all side-effects of parsing are visible. 668 unsigned NumWarningsBefore = Diags.getNumWarnings(); 669 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 670 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 671 return Success; 672 673 // Parse with original options and diagnostics succeeded even though it 674 // shouldn't have. Something is off. 675 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 676 Diags.Report(diag::note_cc1_round_trip_original) 677 << SerializeArgs(CommandLineArgs); 678 return false; 679 } 680 681 // Setup string allocator. 682 llvm::BumpPtrAllocator Alloc; 683 llvm::StringSaver StringPool(Alloc); 684 auto SA = [&StringPool](const Twine &Arg) { 685 return StringPool.save(Arg).data(); 686 }; 687 688 // Generate arguments from the dummy invocation. If Generate is the 689 // inverse of Parse, the newly generated arguments must have the same 690 // semantics as the original. 691 SmallVector<const char *> GeneratedArgs1; 692 Generate(DummyInvocation, GeneratedArgs1, SA); 693 694 // Run the second parse, now on the generated arguments, and with the real 695 // invocation and diagnostics. The result is what we will end up using for the 696 // rest of compilation, so if Generate is not inverse of Parse, something down 697 // the line will break. 698 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 699 700 // The first parse on original arguments succeeded, but second parse of 701 // generated arguments failed. Something must be wrong with the generator. 702 if (!Success2) { 703 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 704 Diags.Report(diag::note_cc1_round_trip_generated) 705 << 1 << SerializeArgs(GeneratedArgs1); 706 return false; 707 } 708 709 // Generate arguments again, this time from the options we will end up using 710 // for the rest of the compilation. 711 SmallVector<const char *> GeneratedArgs2; 712 Generate(RealInvocation, GeneratedArgs2, SA); 713 714 // Compares two lists of generated arguments. 715 auto Equal = [](const ArrayRef<const char *> A, 716 const ArrayRef<const char *> B) { 717 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 718 [](const char *AElem, const char *BElem) { 719 return StringRef(AElem) == StringRef(BElem); 720 }); 721 }; 722 723 // If we generated different arguments from what we assume are two 724 // semantically equivalent CompilerInvocations, the Generate function may 725 // be non-deterministic. 726 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 727 Diags.Report(diag::err_cc1_round_trip_mismatch); 728 Diags.Report(diag::note_cc1_round_trip_generated) 729 << 1 << SerializeArgs(GeneratedArgs1); 730 Diags.Report(diag::note_cc1_round_trip_generated) 731 << 2 << SerializeArgs(GeneratedArgs2); 732 return false; 733 } 734 735 Diags.Report(diag::remark_cc1_round_trip_generated) 736 << 1 << SerializeArgs(GeneratedArgs1); 737 Diags.Report(diag::remark_cc1_round_trip_generated) 738 << 2 << SerializeArgs(GeneratedArgs2); 739 740 return Success2; 741 } 742 743 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 744 OptSpecifier GroupWithValue, 745 std::vector<std::string> &Diagnostics) { 746 for (auto *A : Args.filtered(Group)) { 747 if (A->getOption().getKind() == Option::FlagClass) { 748 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 749 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 750 Diagnostics.push_back( 751 std::string(A->getOption().getName().drop_front(1))); 752 } else if (A->getOption().matches(GroupWithValue)) { 753 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 754 // group. Add only the group name to the diagnostics. 755 Diagnostics.push_back( 756 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 757 } else { 758 // Otherwise, add its value (for OPT_W_Joined and similar). 759 Diagnostics.push_back(A->getValue()); 760 } 761 } 762 } 763 764 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 765 // it won't verify the input. 766 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 767 DiagnosticsEngine *Diags); 768 769 static void getAllNoBuiltinFuncValues(ArgList &Args, 770 std::vector<std::string> &Funcs) { 771 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 772 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 773 return Builtin::Context::isBuiltinFunc(FuncName); 774 }); 775 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 776 } 777 778 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 779 SmallVectorImpl<const char *> &Args, 780 CompilerInvocation::StringAllocator SA) { 781 const AnalyzerOptions *AnalyzerOpts = &Opts; 782 783 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 784 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 785 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 786 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 787 MERGER, EXTRACTOR, TABLE_INDEX) \ 788 GENERATE_OPTION_WITH_MARSHALLING( \ 789 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 790 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 791 #include "clang/Driver/Options.inc" 792 #undef ANALYZER_OPTION_WITH_MARSHALLING 793 794 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 795 switch (Opts.AnalysisStoreOpt) { 796 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 797 case NAME##Model: \ 798 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 799 break; 800 #include "clang/StaticAnalyzer/Core/Analyses.def" 801 default: 802 llvm_unreachable("Tried to generate unknown analysis store."); 803 } 804 } 805 806 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 807 switch (Opts.AnalysisConstraintsOpt) { 808 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 809 case NAME##Model: \ 810 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 811 break; 812 #include "clang/StaticAnalyzer/Core/Analyses.def" 813 default: 814 llvm_unreachable("Tried to generate unknown analysis constraint."); 815 } 816 } 817 818 if (Opts.AnalysisDiagOpt != PD_HTML) { 819 switch (Opts.AnalysisDiagOpt) { 820 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 821 case PD_##NAME: \ 822 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 823 break; 824 #include "clang/StaticAnalyzer/Core/Analyses.def" 825 default: 826 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 827 } 828 } 829 830 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 831 switch (Opts.AnalysisPurgeOpt) { 832 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 833 case NAME: \ 834 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 835 break; 836 #include "clang/StaticAnalyzer/Core/Analyses.def" 837 default: 838 llvm_unreachable("Tried to generate unknown analysis purge mode."); 839 } 840 } 841 842 if (Opts.InliningMode != NoRedundancy) { 843 switch (Opts.InliningMode) { 844 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 845 case NAME: \ 846 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 847 break; 848 #include "clang/StaticAnalyzer/Core/Analyses.def" 849 default: 850 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 851 } 852 } 853 854 for (const auto &CP : Opts.CheckersAndPackages) { 855 OptSpecifier Opt = 856 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 857 GenerateArg(Args, Opt, CP.first, SA); 858 } 859 860 AnalyzerOptions ConfigOpts; 861 parseAnalyzerConfigs(ConfigOpts, nullptr); 862 863 for (const auto &C : Opts.Config) { 864 // Don't generate anything that came from parseAnalyzerConfigs. It would be 865 // redundant and may not be valid on the command line. 866 auto Entry = ConfigOpts.Config.find(C.getKey()); 867 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 868 continue; 869 870 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 871 } 872 873 // Nothing to generate for FullCompilerInvocation. 874 } 875 876 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 877 DiagnosticsEngine &Diags) { 878 unsigned NumErrorsBefore = Diags.getNumErrors(); 879 880 AnalyzerOptions *AnalyzerOpts = &Opts; 881 882 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 883 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 884 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 885 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 886 MERGER, EXTRACTOR, TABLE_INDEX) \ 887 PARSE_OPTION_WITH_MARSHALLING( \ 888 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 889 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 890 #include "clang/Driver/Options.inc" 891 #undef ANALYZER_OPTION_WITH_MARSHALLING 892 893 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 894 StringRef Name = A->getValue(); 895 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 896 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 897 .Case(CMDFLAG, NAME##Model) 898 #include "clang/StaticAnalyzer/Core/Analyses.def" 899 .Default(NumStores); 900 if (Value == NumStores) { 901 Diags.Report(diag::err_drv_invalid_value) 902 << A->getAsString(Args) << Name; 903 } else { 904 Opts.AnalysisStoreOpt = Value; 905 } 906 } 907 908 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 909 StringRef Name = A->getValue(); 910 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 911 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 912 .Case(CMDFLAG, NAME##Model) 913 #include "clang/StaticAnalyzer/Core/Analyses.def" 914 .Default(NumConstraints); 915 if (Value == NumConstraints) { 916 Diags.Report(diag::err_drv_invalid_value) 917 << A->getAsString(Args) << Name; 918 } else { 919 Opts.AnalysisConstraintsOpt = Value; 920 } 921 } 922 923 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 924 StringRef Name = A->getValue(); 925 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 926 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 927 .Case(CMDFLAG, PD_##NAME) 928 #include "clang/StaticAnalyzer/Core/Analyses.def" 929 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 930 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 931 Diags.Report(diag::err_drv_invalid_value) 932 << A->getAsString(Args) << Name; 933 } else { 934 Opts.AnalysisDiagOpt = Value; 935 } 936 } 937 938 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 939 StringRef Name = A->getValue(); 940 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 941 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 942 .Case(CMDFLAG, NAME) 943 #include "clang/StaticAnalyzer/Core/Analyses.def" 944 .Default(NumPurgeModes); 945 if (Value == NumPurgeModes) { 946 Diags.Report(diag::err_drv_invalid_value) 947 << A->getAsString(Args) << Name; 948 } else { 949 Opts.AnalysisPurgeOpt = Value; 950 } 951 } 952 953 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 954 StringRef Name = A->getValue(); 955 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 956 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 957 .Case(CMDFLAG, NAME) 958 #include "clang/StaticAnalyzer/Core/Analyses.def" 959 .Default(NumInliningModes); 960 if (Value == NumInliningModes) { 961 Diags.Report(diag::err_drv_invalid_value) 962 << A->getAsString(Args) << Name; 963 } else { 964 Opts.InliningMode = Value; 965 } 966 } 967 968 Opts.CheckersAndPackages.clear(); 969 for (const Arg *A : 970 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 971 A->claim(); 972 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 973 // We can have a list of comma separated checker names, e.g: 974 // '-analyzer-checker=cocoa,unix' 975 StringRef CheckerAndPackageList = A->getValue(); 976 SmallVector<StringRef, 16> CheckersAndPackages; 977 CheckerAndPackageList.split(CheckersAndPackages, ","); 978 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 979 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 980 IsEnabled); 981 } 982 983 // Go through the analyzer configuration options. 984 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 985 986 // We can have a list of comma separated config names, e.g: 987 // '-analyzer-config key1=val1,key2=val2' 988 StringRef configList = A->getValue(); 989 SmallVector<StringRef, 4> configVals; 990 configList.split(configVals, ","); 991 for (const auto &configVal : configVals) { 992 StringRef key, val; 993 std::tie(key, val) = configVal.split("="); 994 if (val.empty()) { 995 Diags.Report(SourceLocation(), 996 diag::err_analyzer_config_no_value) << configVal; 997 break; 998 } 999 if (val.find('=') != StringRef::npos) { 1000 Diags.Report(SourceLocation(), 1001 diag::err_analyzer_config_multiple_values) 1002 << configVal; 1003 break; 1004 } 1005 1006 // TODO: Check checker options too, possibly in CheckerRegistry. 1007 // Leave unknown non-checker configs unclaimed. 1008 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1009 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1010 Diags.Report(diag::err_analyzer_config_unknown) << key; 1011 continue; 1012 } 1013 1014 A->claim(); 1015 Opts.Config[key] = std::string(val); 1016 } 1017 } 1018 1019 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1020 parseAnalyzerConfigs(Opts, &Diags); 1021 else 1022 parseAnalyzerConfigs(Opts, nullptr); 1023 1024 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1025 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1026 if (i != 0) 1027 os << " "; 1028 os << Args.getArgString(i); 1029 } 1030 os.flush(); 1031 1032 return Diags.getNumErrors() == NumErrorsBefore; 1033 } 1034 1035 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1036 StringRef OptionName, StringRef DefaultVal) { 1037 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1038 } 1039 1040 static void initOption(AnalyzerOptions::ConfigTable &Config, 1041 DiagnosticsEngine *Diags, 1042 StringRef &OptionField, StringRef Name, 1043 StringRef DefaultVal) { 1044 // String options may be known to invalid (e.g. if the expected string is a 1045 // file name, but the file does not exist), those will have to be checked in 1046 // parseConfigs. 1047 OptionField = getStringOption(Config, Name, DefaultVal); 1048 } 1049 1050 static void initOption(AnalyzerOptions::ConfigTable &Config, 1051 DiagnosticsEngine *Diags, 1052 bool &OptionField, StringRef Name, bool DefaultVal) { 1053 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1054 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1055 .Case("true", true) 1056 .Case("false", false) 1057 .Default(None); 1058 1059 if (!PossiblyInvalidVal) { 1060 if (Diags) 1061 Diags->Report(diag::err_analyzer_config_invalid_input) 1062 << Name << "a boolean"; 1063 else 1064 OptionField = DefaultVal; 1065 } else 1066 OptionField = PossiblyInvalidVal.getValue(); 1067 } 1068 1069 static void initOption(AnalyzerOptions::ConfigTable &Config, 1070 DiagnosticsEngine *Diags, 1071 unsigned &OptionField, StringRef Name, 1072 unsigned DefaultVal) { 1073 1074 OptionField = DefaultVal; 1075 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1076 .getAsInteger(0, OptionField); 1077 if (Diags && HasFailed) 1078 Diags->Report(diag::err_analyzer_config_invalid_input) 1079 << Name << "an unsigned"; 1080 } 1081 1082 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1083 DiagnosticsEngine *Diags) { 1084 // TODO: There's no need to store the entire configtable, it'd be plenty 1085 // enough tostore checker options. 1086 1087 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1088 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1089 1090 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1091 SHALLOW_VAL, DEEP_VAL) \ 1092 switch (AnOpts.getUserMode()) { \ 1093 case UMK_Shallow: \ 1094 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1095 break; \ 1096 case UMK_Deep: \ 1097 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1098 break; \ 1099 } \ 1100 1101 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1102 #undef ANALYZER_OPTION 1103 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1104 1105 // At this point, AnalyzerOptions is configured. Let's validate some options. 1106 1107 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1108 // The current approach only validates the registered checkers which does not 1109 // contain the runtime enabled checkers and optimally we would validate both. 1110 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1111 std::vector<StringRef> Checkers = 1112 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1113 std::vector<StringRef> Packages = 1114 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1115 1116 SmallVector<StringRef, 16> CheckersAndPackages; 1117 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1118 1119 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1120 if (Diags) { 1121 bool IsChecker = CheckerOrPackage.contains('.'); 1122 bool IsValidName = 1123 IsChecker 1124 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1125 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 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 Result.Pattern = A->getValue(); 1178 1179 std::string RegexError; 1180 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1181 if (!Result.Regex->isValid(RegexError)) { 1182 Diags.Report(diag::err_drv_optimization_remark_pattern) 1183 << RegexError << A->getAsString(Args); 1184 return false; 1185 } 1186 1187 return true; 1188 }; 1189 1190 for (Arg *A : Args) { 1191 if (A->getOption().matches(OPT_R_Joined)) { 1192 StringRef Value = A->getValue(); 1193 1194 if (Value == Name) 1195 Result.Kind = CodeGenOptions::RK_Enabled; 1196 else if (Value == "everything") 1197 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1198 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1199 Result.Kind = CodeGenOptions::RK_Disabled; 1200 else if (Value == "no-everything") 1201 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1202 } else if (A->getOption().matches(OptEQ)) { 1203 Result.Kind = CodeGenOptions::RK_WithPattern; 1204 if (!InitializeResultPattern(A)) 1205 return CodeGenOptions::OptRemark(); 1206 } 1207 } 1208 1209 if (Result.Kind == CodeGenOptions::RK_Disabled || 1210 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1211 Result.Pattern = ""; 1212 Result.Regex = nullptr; 1213 } 1214 1215 return Result; 1216 } 1217 1218 static bool parseDiagnosticLevelMask(StringRef FlagName, 1219 const std::vector<std::string> &Levels, 1220 DiagnosticsEngine &Diags, 1221 DiagnosticLevelMask &M) { 1222 bool Success = true; 1223 for (const auto &Level : Levels) { 1224 DiagnosticLevelMask const PM = 1225 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1226 .Case("note", DiagnosticLevelMask::Note) 1227 .Case("remark", DiagnosticLevelMask::Remark) 1228 .Case("warning", DiagnosticLevelMask::Warning) 1229 .Case("error", DiagnosticLevelMask::Error) 1230 .Default(DiagnosticLevelMask::None); 1231 if (PM == DiagnosticLevelMask::None) { 1232 Success = false; 1233 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1234 } 1235 M = M | PM; 1236 } 1237 return Success; 1238 } 1239 1240 static void parseSanitizerKinds(StringRef FlagName, 1241 const std::vector<std::string> &Sanitizers, 1242 DiagnosticsEngine &Diags, SanitizerSet &S) { 1243 for (const auto &Sanitizer : Sanitizers) { 1244 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1245 if (K == SanitizerMask()) 1246 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1247 else 1248 S.set(K, true); 1249 } 1250 } 1251 1252 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1253 SmallVector<StringRef, 4> Values; 1254 serializeSanitizerSet(S, Values); 1255 return Values; 1256 } 1257 1258 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1259 ArgList &Args, DiagnosticsEngine &D, 1260 XRayInstrSet &S) { 1261 llvm::SmallVector<StringRef, 2> BundleParts; 1262 llvm::SplitString(Bundle, BundleParts, ","); 1263 for (const auto &B : BundleParts) { 1264 auto Mask = parseXRayInstrValue(B); 1265 if (Mask == XRayInstrKind::None) 1266 if (B != "none") 1267 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1268 else 1269 S.Mask = Mask; 1270 else if (Mask == XRayInstrKind::All) 1271 S.Mask = Mask; 1272 else 1273 S.set(Mask, true); 1274 } 1275 } 1276 1277 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1278 llvm::SmallVector<StringRef, 2> BundleParts; 1279 serializeXRayInstrValue(S, BundleParts); 1280 std::string Buffer; 1281 llvm::raw_string_ostream OS(Buffer); 1282 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1283 return OS.str(); 1284 } 1285 1286 // Set the profile kind using fprofile-instrument-use-path. 1287 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1288 const Twine &ProfileName) { 1289 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1290 // In error, return silently and let Clang PGOUse report the error message. 1291 if (auto E = ReaderOrErr.takeError()) { 1292 llvm::consumeError(std::move(E)); 1293 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1294 return; 1295 } 1296 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1297 std::move(ReaderOrErr.get()); 1298 if (PGOReader->isIRLevelProfile()) { 1299 if (PGOReader->hasCSIRLevelProfile()) 1300 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1301 else 1302 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1303 } else 1304 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1305 } 1306 1307 void CompilerInvocation::GenerateCodeGenArgs( 1308 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1309 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1310 const LangOptions *LangOpts) { 1311 const CodeGenOptions &CodeGenOpts = Opts; 1312 1313 if (Opts.OptimizationLevel == 0) 1314 GenerateArg(Args, OPT_O0, SA); 1315 else 1316 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1317 1318 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1319 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1320 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1321 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1322 MERGER, EXTRACTOR, TABLE_INDEX) \ 1323 GENERATE_OPTION_WITH_MARSHALLING( \ 1324 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1325 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1326 #include "clang/Driver/Options.inc" 1327 #undef CODEGEN_OPTION_WITH_MARSHALLING 1328 1329 if (Opts.OptimizationLevel > 0) { 1330 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1331 GenerateArg(Args, OPT_finline_functions, SA); 1332 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1333 GenerateArg(Args, OPT_finline_hint_functions, SA); 1334 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1335 GenerateArg(Args, OPT_fno_inline, SA); 1336 } 1337 1338 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1339 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1340 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1341 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1342 1343 Optional<StringRef> DebugInfoVal; 1344 switch (Opts.DebugInfo) { 1345 case codegenoptions::DebugLineTablesOnly: 1346 DebugInfoVal = "line-tables-only"; 1347 break; 1348 case codegenoptions::DebugDirectivesOnly: 1349 DebugInfoVal = "line-directives-only"; 1350 break; 1351 case codegenoptions::DebugInfoConstructor: 1352 DebugInfoVal = "constructor"; 1353 break; 1354 case codegenoptions::LimitedDebugInfo: 1355 DebugInfoVal = "limited"; 1356 break; 1357 case codegenoptions::FullDebugInfo: 1358 DebugInfoVal = "standalone"; 1359 break; 1360 case codegenoptions::UnusedTypeInfo: 1361 DebugInfoVal = "unused-types"; 1362 break; 1363 case codegenoptions::NoDebugInfo: // default value 1364 DebugInfoVal = None; 1365 break; 1366 case codegenoptions::LocTrackingOnly: // implied value 1367 DebugInfoVal = None; 1368 break; 1369 } 1370 if (DebugInfoVal) 1371 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1372 1373 for (const auto &Prefix : Opts.DebugPrefixMap) 1374 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1375 Prefix.first + "=" + Prefix.second, SA); 1376 1377 for (const auto &Prefix : Opts.CoveragePrefixMap) 1378 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1379 Prefix.first + "=" + Prefix.second, SA); 1380 1381 if (Opts.NewStructPathTBAA) 1382 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1383 1384 if (Opts.OptimizeSize == 1) 1385 GenerateArg(Args, OPT_O, "s", SA); 1386 else if (Opts.OptimizeSize == 2) 1387 GenerateArg(Args, OPT_O, "z", SA); 1388 1389 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1390 // -ffreestanding. We'll consider that when generating them. 1391 1392 // NoBuiltinFuncs are generated by LangOptions. 1393 1394 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1395 GenerateArg(Args, OPT_funroll_loops, SA); 1396 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1397 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1398 1399 if (!Opts.BinutilsVersion.empty()) 1400 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1401 1402 if (Opts.DebugNameTable == 1403 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1404 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1405 else if (Opts.DebugNameTable == 1406 static_cast<unsigned>( 1407 llvm::DICompileUnit::DebugNameTableKind::Default)) 1408 GenerateArg(Args, OPT_gpubnames, SA); 1409 1410 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1411 // it or PGOUseInstrumentor. 1412 1413 if (Opts.TimePasses) { 1414 if (Opts.TimePassesPerRun) 1415 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1416 else 1417 GenerateArg(Args, OPT_ftime_report, SA); 1418 } 1419 1420 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1421 GenerateArg(Args, OPT_flto, SA); 1422 1423 if (Opts.PrepareForThinLTO) 1424 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1425 1426 if (!Opts.ThinLTOIndexFile.empty()) 1427 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1428 1429 if (Opts.SaveTempsFilePrefix == OutputFile) 1430 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1431 1432 StringRef MemProfileBasename("memprof.profraw"); 1433 if (!Opts.MemoryProfileOutput.empty()) { 1434 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1435 GenerateArg(Args, OPT_fmemory_profile, SA); 1436 } else { 1437 size_t ArgLength = 1438 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1439 GenerateArg(Args, OPT_fmemory_profile_EQ, 1440 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1441 } 1442 } 1443 1444 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1445 GenerateArg(Args, OPT_coverage_version_EQ, 1446 StringRef(Opts.CoverageVersion, 4), SA); 1447 1448 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1449 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1450 // won't be generated.) 1451 1452 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1453 std::string InstrBundle = 1454 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1455 if (!InstrBundle.empty()) 1456 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1457 } 1458 1459 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1460 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1461 else if (Opts.CFProtectionReturn) 1462 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1463 else if (Opts.CFProtectionBranch) 1464 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1465 1466 for (const auto &F : Opts.LinkBitcodeFiles) { 1467 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1468 F.PropagateAttrs && F.Internalize; 1469 GenerateArg(Args, 1470 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1471 F.Filename, SA); 1472 } 1473 1474 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1475 // That would make it easy to generate the option only **once** if it was 1476 // explicitly set to non-default value. 1477 if (Opts.ExplicitEmulatedTLS) { 1478 GenerateArg( 1479 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1480 } 1481 1482 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1483 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1484 1485 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1486 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1487 SA); 1488 1489 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1490 OptSpecifier Opt = 1491 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1492 GenerateArg(Args, Opt, SA); 1493 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1494 OptSpecifier Opt = 1495 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1496 GenerateArg(Args, Opt, SA); 1497 } 1498 1499 if (Opts.EnableAIXExtendedAltivecABI) 1500 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1501 1502 if (!Opts.OptRecordPasses.empty()) 1503 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1504 1505 if (!Opts.OptRecordFormat.empty()) 1506 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1507 1508 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1509 Opts.OptimizationRemark); 1510 1511 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1512 Opts.OptimizationRemarkMissed); 1513 1514 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1515 Opts.OptimizationRemarkAnalysis); 1516 1517 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1518 Opts.DiagnosticsHotnessThreshold 1519 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1520 : "auto", 1521 SA); 1522 1523 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1524 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1525 1526 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1527 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1528 1529 if (!Opts.EmitVersionIdentMetadata) 1530 GenerateArg(Args, OPT_Qn, SA); 1531 1532 switch (Opts.FiniteLoops) { 1533 case CodeGenOptions::FiniteLoopsKind::Language: 1534 break; 1535 case CodeGenOptions::FiniteLoopsKind::Always: 1536 GenerateArg(Args, OPT_ffinite_loops, SA); 1537 break; 1538 case CodeGenOptions::FiniteLoopsKind::Never: 1539 GenerateArg(Args, OPT_fno_finite_loops, SA); 1540 break; 1541 } 1542 } 1543 1544 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1545 InputKind IK, 1546 DiagnosticsEngine &Diags, 1547 const llvm::Triple &T, 1548 const std::string &OutputFile, 1549 const LangOptions &LangOptsRef) { 1550 unsigned NumErrorsBefore = Diags.getNumErrors(); 1551 1552 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1553 // TODO: This could be done in Driver 1554 unsigned MaxOptLevel = 3; 1555 if (OptimizationLevel > MaxOptLevel) { 1556 // If the optimization level is not supported, fall back on the default 1557 // optimization 1558 Diags.Report(diag::warn_drv_optimization_value) 1559 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1560 OptimizationLevel = MaxOptLevel; 1561 } 1562 Opts.OptimizationLevel = OptimizationLevel; 1563 1564 // The key paths of codegen options defined in Options.td start with 1565 // "CodeGenOpts.". Let's provide the expected variable name and type. 1566 CodeGenOptions &CodeGenOpts = Opts; 1567 // Some codegen options depend on language options. Let's provide the expected 1568 // variable name and type. 1569 const LangOptions *LangOpts = &LangOptsRef; 1570 1571 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1572 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1573 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1574 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1575 MERGER, EXTRACTOR, TABLE_INDEX) \ 1576 PARSE_OPTION_WITH_MARSHALLING( \ 1577 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1578 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1579 #include "clang/Driver/Options.inc" 1580 #undef CODEGEN_OPTION_WITH_MARSHALLING 1581 1582 // At O0 we want to fully disable inlining outside of cases marked with 1583 // 'alwaysinline' that are required for correctness. 1584 Opts.setInlining((Opts.OptimizationLevel == 0) 1585 ? CodeGenOptions::OnlyAlwaysInlining 1586 : CodeGenOptions::NormalInlining); 1587 // Explicit inlining flags can disable some or all inlining even at 1588 // optimization levels above zero. 1589 if (Arg *InlineArg = Args.getLastArg( 1590 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1591 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1592 if (Opts.OptimizationLevel > 0) { 1593 const Option &InlineOpt = InlineArg->getOption(); 1594 if (InlineOpt.matches(options::OPT_finline_functions)) 1595 Opts.setInlining(CodeGenOptions::NormalInlining); 1596 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1597 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1598 else 1599 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1600 } 1601 } 1602 1603 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1604 // -fdirect-access-external-data. 1605 Opts.DirectAccessExternalData = 1606 Args.hasArg(OPT_fdirect_access_external_data) || 1607 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1608 LangOpts->PICLevel == 0); 1609 1610 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1611 unsigned Val = 1612 llvm::StringSwitch<unsigned>(A->getValue()) 1613 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1614 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1615 .Case("constructor", codegenoptions::DebugInfoConstructor) 1616 .Case("limited", codegenoptions::LimitedDebugInfo) 1617 .Case("standalone", codegenoptions::FullDebugInfo) 1618 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1619 .Default(~0U); 1620 if (Val == ~0U) 1621 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1622 << A->getValue(); 1623 else 1624 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1625 } 1626 1627 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1628 // constructor homing, and vice versa for -fno-use-ctor-homing. 1629 if (const Arg *A = 1630 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1631 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1632 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1633 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1634 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1635 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1636 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1637 } 1638 1639 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1640 auto Split = StringRef(Arg).split('='); 1641 Opts.DebugPrefixMap.insert( 1642 {std::string(Split.first), std::string(Split.second)}); 1643 } 1644 1645 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1646 auto Split = StringRef(Arg).split('='); 1647 Opts.CoveragePrefixMap.insert( 1648 {std::string(Split.first), std::string(Split.second)}); 1649 } 1650 1651 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1652 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1653 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1654 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1655 1656 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1657 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1658 Opts.EmitCallSiteInfo = true; 1659 1660 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1661 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1662 << Opts.DIBugsReportFilePath; 1663 Opts.DIBugsReportFilePath = ""; 1664 } 1665 1666 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1667 Args.hasArg(OPT_new_struct_path_tbaa); 1668 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1669 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1670 if (Opts.SimplifyLibCalls) 1671 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1672 Opts.UnrollLoops = 1673 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1674 (Opts.OptimizationLevel > 1)); 1675 Opts.BinutilsVersion = 1676 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1677 1678 Opts.DebugNameTable = static_cast<unsigned>( 1679 Args.hasArg(OPT_ggnu_pubnames) 1680 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1681 : Args.hasArg(OPT_gpubnames) 1682 ? llvm::DICompileUnit::DebugNameTableKind::Default 1683 : llvm::DICompileUnit::DebugNameTableKind::None); 1684 1685 if (!Opts.ProfileInstrumentUsePath.empty()) 1686 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1687 1688 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1689 Opts.TimePasses = true; 1690 1691 // -ftime-report= is only for new pass manager. 1692 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1693 if (Opts.LegacyPassManager) 1694 Diags.Report(diag::err_drv_argument_only_allowed_with) 1695 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1696 1697 StringRef Val = A->getValue(); 1698 if (Val == "per-pass") 1699 Opts.TimePassesPerRun = false; 1700 else if (Val == "per-pass-run") 1701 Opts.TimePassesPerRun = true; 1702 else 1703 Diags.Report(diag::err_drv_invalid_value) 1704 << A->getAsString(Args) << A->getValue(); 1705 } 1706 } 1707 1708 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1709 Opts.PrepareForThinLTO = false; 1710 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1711 StringRef S = A->getValue(); 1712 if (S == "thin") 1713 Opts.PrepareForThinLTO = true; 1714 else if (S != "full") 1715 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1716 } 1717 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1718 if (IK.getLanguage() != Language::LLVM_IR) 1719 Diags.Report(diag::err_drv_argument_only_allowed_with) 1720 << A->getAsString(Args) << "-x ir"; 1721 Opts.ThinLTOIndexFile = 1722 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1723 } 1724 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1725 Opts.SaveTempsFilePrefix = 1726 llvm::StringSwitch<std::string>(A->getValue()) 1727 .Case("obj", OutputFile) 1728 .Default(llvm::sys::path::filename(OutputFile).str()); 1729 1730 // The memory profile runtime appends the pid to make this name more unique. 1731 const char *MemProfileBasename = "memprof.profraw"; 1732 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1733 SmallString<128> Path( 1734 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1735 llvm::sys::path::append(Path, MemProfileBasename); 1736 Opts.MemoryProfileOutput = std::string(Path); 1737 } else if (Args.hasArg(OPT_fmemory_profile)) 1738 Opts.MemoryProfileOutput = MemProfileBasename; 1739 1740 memcpy(Opts.CoverageVersion, "408*", 4); 1741 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1742 if (Args.hasArg(OPT_coverage_version_EQ)) { 1743 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1744 if (CoverageVersion.size() != 4) { 1745 Diags.Report(diag::err_drv_invalid_value) 1746 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1747 << CoverageVersion; 1748 } else { 1749 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1750 } 1751 } 1752 } 1753 // FIXME: For backend options that are not yet recorded as function 1754 // attributes in the IR, keep track of them so we can embed them in a 1755 // separate data section and use them when building the bitcode. 1756 for (const auto &A : Args) { 1757 // Do not encode output and input. 1758 if (A->getOption().getID() == options::OPT_o || 1759 A->getOption().getID() == options::OPT_INPUT || 1760 A->getOption().getID() == options::OPT_x || 1761 A->getOption().getID() == options::OPT_fembed_bitcode || 1762 A->getOption().matches(options::OPT_W_Group)) 1763 continue; 1764 ArgStringList ASL; 1765 A->render(Args, ASL); 1766 for (const auto &arg : ASL) { 1767 StringRef ArgStr(arg); 1768 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1769 // using \00 to separate each commandline options. 1770 Opts.CmdArgs.push_back('\0'); 1771 } 1772 } 1773 1774 auto XRayInstrBundles = 1775 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1776 if (XRayInstrBundles.empty()) 1777 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1778 else 1779 for (const auto &A : XRayInstrBundles) 1780 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1781 Diags, Opts.XRayInstrumentationBundle); 1782 1783 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1784 StringRef Name = A->getValue(); 1785 if (Name == "full") { 1786 Opts.CFProtectionReturn = 1; 1787 Opts.CFProtectionBranch = 1; 1788 } else if (Name == "return") 1789 Opts.CFProtectionReturn = 1; 1790 else if (Name == "branch") 1791 Opts.CFProtectionBranch = 1; 1792 else if (Name != "none") 1793 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1794 } 1795 1796 for (auto *A : 1797 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1798 CodeGenOptions::BitcodeFileToLink F; 1799 F.Filename = A->getValue(); 1800 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1801 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1802 // When linking CUDA bitcode, propagate function attributes so that 1803 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1804 F.PropagateAttrs = true; 1805 F.Internalize = true; 1806 } 1807 Opts.LinkBitcodeFiles.push_back(F); 1808 } 1809 1810 if (Args.getLastArg(OPT_femulated_tls) || 1811 Args.getLastArg(OPT_fno_emulated_tls)) { 1812 Opts.ExplicitEmulatedTLS = true; 1813 } 1814 1815 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1816 if (T.isOSAIX()) { 1817 StringRef Name = A->getValue(); 1818 if (Name != "global-dynamic") 1819 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1820 } 1821 } 1822 1823 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1824 StringRef Val = A->getValue(); 1825 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1826 if (!Opts.FPDenormalMode.isValid()) 1827 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1828 } 1829 1830 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1831 StringRef Val = A->getValue(); 1832 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1833 if (!Opts.FP32DenormalMode.isValid()) 1834 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1835 } 1836 1837 // X86_32 has -fppc-struct-return and -freg-struct-return. 1838 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1839 if (Arg *A = 1840 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1841 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1842 // TODO: We might want to consider enabling these options on AIX in the 1843 // future. 1844 if (T.isOSAIX()) 1845 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1846 << A->getSpelling() << T.str(); 1847 1848 const Option &O = A->getOption(); 1849 if (O.matches(OPT_fpcc_struct_return) || 1850 O.matches(OPT_maix_struct_return)) { 1851 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1852 } else { 1853 assert(O.matches(OPT_freg_struct_return) || 1854 O.matches(OPT_msvr4_struct_return)); 1855 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1856 } 1857 } 1858 1859 if (Arg *A = 1860 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1861 if (!T.isOSAIX()) 1862 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1863 << A->getSpelling() << T.str(); 1864 1865 const Option &O = A->getOption(); 1866 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1867 } 1868 1869 bool NeedLocTracking = false; 1870 1871 if (!Opts.OptRecordFile.empty()) 1872 NeedLocTracking = true; 1873 1874 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1875 Opts.OptRecordPasses = A->getValue(); 1876 NeedLocTracking = true; 1877 } 1878 1879 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1880 Opts.OptRecordFormat = A->getValue(); 1881 NeedLocTracking = true; 1882 } 1883 1884 Opts.OptimizationRemark = 1885 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1886 1887 Opts.OptimizationRemarkMissed = 1888 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1889 1890 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1891 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1892 1893 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1894 Opts.OptimizationRemarkMissed.hasValidPattern() || 1895 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1896 1897 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1898 bool UsingProfile = UsingSampleProfile || 1899 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1900 1901 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1902 // An IR file will contain PGO as metadata 1903 IK.getLanguage() != Language::LLVM_IR) 1904 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1905 << "-fdiagnostics-show-hotness"; 1906 1907 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1908 if (auto *arg = 1909 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1910 auto ResultOrErr = 1911 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1912 1913 if (!ResultOrErr) { 1914 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1915 << "-fdiagnostics-hotness-threshold="; 1916 } else { 1917 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1918 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1919 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1920 !UsingProfile) 1921 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1922 << "-fdiagnostics-hotness-threshold="; 1923 } 1924 } 1925 1926 // If the user requested to use a sample profile for PGO, then the 1927 // backend will need to track source location information so the profile 1928 // can be incorporated into the IR. 1929 if (UsingSampleProfile) 1930 NeedLocTracking = true; 1931 1932 if (!Opts.StackUsageOutput.empty()) 1933 NeedLocTracking = true; 1934 1935 // If the user requested a flag that requires source locations available in 1936 // the backend, make sure that the backend tracks source location information. 1937 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1938 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1939 1940 // Parse -fsanitize-recover= arguments. 1941 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1942 parseSanitizerKinds("-fsanitize-recover=", 1943 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1944 Opts.SanitizeRecover); 1945 parseSanitizerKinds("-fsanitize-trap=", 1946 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1947 Opts.SanitizeTrap); 1948 1949 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1950 1951 if (Args.hasArg(options::OPT_ffinite_loops)) 1952 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1953 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1954 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1955 1956 Opts.EmitIEEENaNCompliantInsts = 1957 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1958 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1959 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1960 1961 return Diags.getNumErrors() == NumErrorsBefore; 1962 } 1963 1964 static void 1965 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1966 SmallVectorImpl<const char *> &Args, 1967 CompilerInvocation::StringAllocator SA) { 1968 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1969 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1970 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1971 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1972 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1973 MERGER, EXTRACTOR, TABLE_INDEX) \ 1974 GENERATE_OPTION_WITH_MARSHALLING( \ 1975 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1976 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1977 #include "clang/Driver/Options.inc" 1978 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1979 1980 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1981 GenerateArg(Args, OPT_show_includes, SA); 1982 1983 for (const auto &Dep : Opts.ExtraDeps) { 1984 switch (Dep.second) { 1985 case EDK_SanitizeIgnorelist: 1986 // Sanitizer ignorelist arguments are generated from LanguageOptions. 1987 continue; 1988 case EDK_ModuleFile: 1989 // Module file arguments are generated from FrontendOptions and 1990 // HeaderSearchOptions. 1991 continue; 1992 case EDK_ProfileList: 1993 // Profile list arguments are generated from LanguageOptions via the 1994 // marshalling infrastructure. 1995 continue; 1996 case EDK_DepFileEntry: 1997 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1998 break; 1999 } 2000 } 2001 } 2002 2003 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2004 ArgList &Args, DiagnosticsEngine &Diags, 2005 frontend::ActionKind Action, 2006 bool ShowLineMarkers) { 2007 unsigned NumErrorsBefore = Diags.getNumErrors(); 2008 2009 DependencyOutputOptions &DependencyOutputOpts = Opts; 2010 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2011 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2012 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2013 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2014 MERGER, EXTRACTOR, TABLE_INDEX) \ 2015 PARSE_OPTION_WITH_MARSHALLING( \ 2016 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2017 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2018 #include "clang/Driver/Options.inc" 2019 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2020 2021 if (Args.hasArg(OPT_show_includes)) { 2022 // Writing both /showIncludes and preprocessor output to stdout 2023 // would produce interleaved output, so use stderr for /showIncludes. 2024 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2025 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2026 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2027 else 2028 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2029 } else { 2030 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2031 } 2032 2033 // Add sanitizer ignorelists as extra dependencies. 2034 // They won't be discovered by the regular preprocessor, so 2035 // we let make / ninja to know about this implicit dependency. 2036 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2037 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2038 StringRef Val = A->getValue(); 2039 if (Val.find('=') == StringRef::npos) 2040 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2041 } 2042 if (Opts.IncludeSystemHeaders) { 2043 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2044 StringRef Val = A->getValue(); 2045 if (Val.find('=') == StringRef::npos) 2046 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2047 } 2048 } 2049 } 2050 2051 // -fprofile-list= dependencies. 2052 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2053 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2054 2055 // Propagate the extra dependencies. 2056 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2057 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2058 2059 // Only the -fmodule-file=<file> form. 2060 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2061 StringRef Val = A->getValue(); 2062 if (Val.find('=') == StringRef::npos) 2063 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2064 } 2065 2066 return Diags.getNumErrors() == NumErrorsBefore; 2067 } 2068 2069 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2070 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2071 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2072 // Support both clang's -f[no-]color-diagnostics and gcc's 2073 // -f[no-]diagnostics-colors[=never|always|auto]. 2074 enum { 2075 Colors_On, 2076 Colors_Off, 2077 Colors_Auto 2078 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2079 for (auto *A : Args) { 2080 const Option &O = A->getOption(); 2081 if (O.matches(options::OPT_fcolor_diagnostics) || 2082 O.matches(options::OPT_fdiagnostics_color)) { 2083 ShowColors = Colors_On; 2084 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2085 O.matches(options::OPT_fno_diagnostics_color)) { 2086 ShowColors = Colors_Off; 2087 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2088 StringRef Value(A->getValue()); 2089 if (Value == "always") 2090 ShowColors = Colors_On; 2091 else if (Value == "never") 2092 ShowColors = Colors_Off; 2093 else if (Value == "auto") 2094 ShowColors = Colors_Auto; 2095 } 2096 } 2097 return ShowColors == Colors_On || 2098 (ShowColors == Colors_Auto && 2099 llvm::sys::Process::StandardErrHasColors()); 2100 } 2101 2102 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2103 DiagnosticsEngine &Diags) { 2104 bool Success = true; 2105 for (const auto &Prefix : VerifyPrefixes) { 2106 // Every prefix must start with a letter and contain only alphanumeric 2107 // characters, hyphens, and underscores. 2108 auto BadChar = llvm::find_if(Prefix, [](char C) { 2109 return !isAlphanumeric(C) && C != '-' && C != '_'; 2110 }); 2111 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2112 Success = false; 2113 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2114 Diags.Report(diag::note_drv_verify_prefix_spelling); 2115 } 2116 } 2117 return Success; 2118 } 2119 2120 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2121 SmallVectorImpl<const char *> &Args, 2122 CompilerInvocation::StringAllocator SA) { 2123 const FileSystemOptions &FileSystemOpts = Opts; 2124 2125 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2126 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2127 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2128 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2129 MERGER, EXTRACTOR, TABLE_INDEX) \ 2130 GENERATE_OPTION_WITH_MARSHALLING( \ 2131 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2132 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2133 #include "clang/Driver/Options.inc" 2134 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2135 } 2136 2137 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2138 DiagnosticsEngine &Diags) { 2139 unsigned NumErrorsBefore = Diags.getNumErrors(); 2140 2141 FileSystemOptions &FileSystemOpts = Opts; 2142 2143 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2144 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2145 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2146 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2147 MERGER, EXTRACTOR, TABLE_INDEX) \ 2148 PARSE_OPTION_WITH_MARSHALLING( \ 2149 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2150 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2151 #include "clang/Driver/Options.inc" 2152 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2153 2154 return Diags.getNumErrors() == NumErrorsBefore; 2155 } 2156 2157 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2158 SmallVectorImpl<const char *> &Args, 2159 CompilerInvocation::StringAllocator SA) { 2160 const MigratorOptions &MigratorOpts = Opts; 2161 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2162 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2163 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2164 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2165 MERGER, EXTRACTOR, TABLE_INDEX) \ 2166 GENERATE_OPTION_WITH_MARSHALLING( \ 2167 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2168 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2169 #include "clang/Driver/Options.inc" 2170 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2171 } 2172 2173 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2174 DiagnosticsEngine &Diags) { 2175 unsigned NumErrorsBefore = Diags.getNumErrors(); 2176 2177 MigratorOptions &MigratorOpts = Opts; 2178 2179 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2180 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2181 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2182 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2183 MERGER, EXTRACTOR, TABLE_INDEX) \ 2184 PARSE_OPTION_WITH_MARSHALLING( \ 2185 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2186 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2187 #include "clang/Driver/Options.inc" 2188 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2189 2190 return Diags.getNumErrors() == NumErrorsBefore; 2191 } 2192 2193 void CompilerInvocation::GenerateDiagnosticArgs( 2194 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2195 StringAllocator SA, bool DefaultDiagColor) { 2196 const DiagnosticOptions *DiagnosticOpts = &Opts; 2197 #define DIAG_OPTION_WITH_MARSHALLING( \ 2198 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2199 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2200 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2201 MERGER, EXTRACTOR, TABLE_INDEX) \ 2202 GENERATE_OPTION_WITH_MARSHALLING( \ 2203 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2204 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2205 #include "clang/Driver/Options.inc" 2206 #undef DIAG_OPTION_WITH_MARSHALLING 2207 2208 if (!Opts.DiagnosticSerializationFile.empty()) 2209 GenerateArg(Args, OPT_diagnostic_serialized_file, 2210 Opts.DiagnosticSerializationFile, SA); 2211 2212 if (Opts.ShowColors) 2213 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2214 2215 if (Opts.VerifyDiagnostics && 2216 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2217 GenerateArg(Args, OPT_verify, SA); 2218 2219 for (const auto &Prefix : Opts.VerifyPrefixes) 2220 if (Prefix != "expected") 2221 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2222 2223 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2224 if (VIU == DiagnosticLevelMask::None) { 2225 // This is the default, don't generate anything. 2226 } else if (VIU == DiagnosticLevelMask::All) { 2227 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2228 } else { 2229 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2230 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2231 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2232 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2233 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2234 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2235 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2236 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2237 } 2238 2239 for (const auto &Warning : Opts.Warnings) { 2240 // This option is automatically generated from UndefPrefixes. 2241 if (Warning == "undef-prefix") 2242 continue; 2243 Args.push_back(SA(StringRef("-W") + Warning)); 2244 } 2245 2246 for (const auto &Remark : Opts.Remarks) { 2247 // These arguments are generated from OptimizationRemark fields of 2248 // CodeGenOptions. 2249 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2250 "pass-analysis", "no-pass-analysis", 2251 "pass-missed", "no-pass-missed"}; 2252 if (llvm::is_contained(IgnoredRemarks, Remark)) 2253 continue; 2254 2255 Args.push_back(SA(StringRef("-R") + Remark)); 2256 } 2257 } 2258 2259 std::unique_ptr<DiagnosticOptions> 2260 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2261 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2262 unsigned MissingArgIndex, MissingArgCount; 2263 InputArgList Args = getDriverOptTable().ParseArgs( 2264 Argv.slice(1), MissingArgIndex, MissingArgCount); 2265 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2266 // Any errors that would be diagnosed here will also be diagnosed later, 2267 // when the DiagnosticsEngine actually exists. 2268 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2269 return DiagOpts; 2270 } 2271 2272 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2273 DiagnosticsEngine *Diags, 2274 bool DefaultDiagColor) { 2275 Optional<DiagnosticsEngine> IgnoringDiags; 2276 if (!Diags) { 2277 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2278 new IgnoringDiagConsumer()); 2279 Diags = &*IgnoringDiags; 2280 } 2281 2282 unsigned NumErrorsBefore = Diags->getNumErrors(); 2283 2284 // The key paths of diagnostic options defined in Options.td start with 2285 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2286 DiagnosticOptions *DiagnosticOpts = &Opts; 2287 2288 #define DIAG_OPTION_WITH_MARSHALLING( \ 2289 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2290 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2291 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2292 MERGER, EXTRACTOR, TABLE_INDEX) \ 2293 PARSE_OPTION_WITH_MARSHALLING( \ 2294 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2295 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2296 #include "clang/Driver/Options.inc" 2297 #undef DIAG_OPTION_WITH_MARSHALLING 2298 2299 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2300 2301 if (Arg *A = 2302 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2303 Opts.DiagnosticSerializationFile = A->getValue(); 2304 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2305 2306 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2307 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2308 if (Args.hasArg(OPT_verify)) 2309 Opts.VerifyPrefixes.push_back("expected"); 2310 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2311 // then sort it to prepare for fast lookup using std::binary_search. 2312 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2313 Opts.VerifyDiagnostics = false; 2314 else 2315 llvm::sort(Opts.VerifyPrefixes); 2316 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2317 parseDiagnosticLevelMask( 2318 "-verify-ignore-unexpected=", 2319 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2320 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2321 DiagMask = DiagnosticLevelMask::All; 2322 Opts.setVerifyIgnoreUnexpected(DiagMask); 2323 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2324 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2325 Diags->Report(diag::warn_ignoring_ftabstop_value) 2326 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2327 } 2328 2329 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2330 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2331 2332 return Diags->getNumErrors() == NumErrorsBefore; 2333 } 2334 2335 /// Parse the argument to the -ftest-module-file-extension 2336 /// command-line argument. 2337 /// 2338 /// \returns true on error, false on success. 2339 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2340 std::string &BlockName, 2341 unsigned &MajorVersion, 2342 unsigned &MinorVersion, 2343 bool &Hashed, 2344 std::string &UserInfo) { 2345 SmallVector<StringRef, 5> Args; 2346 Arg.split(Args, ':', 5); 2347 if (Args.size() < 5) 2348 return true; 2349 2350 BlockName = std::string(Args[0]); 2351 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2352 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2353 if (Args[3].getAsInteger(2, Hashed)) return true; 2354 if (Args.size() > 4) 2355 UserInfo = std::string(Args[4]); 2356 return false; 2357 } 2358 2359 /// Return a table that associates command line option specifiers with the 2360 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2361 /// intentionally missing, as this case is handled separately from other 2362 /// frontend options. 2363 static const auto &getFrontendActionTable() { 2364 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2365 {frontend::ASTDeclList, OPT_ast_list}, 2366 2367 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2368 {frontend::ASTDump, OPT_ast_dump_all}, 2369 {frontend::ASTDump, OPT_ast_dump_EQ}, 2370 {frontend::ASTDump, OPT_ast_dump}, 2371 {frontend::ASTDump, OPT_ast_dump_lookups}, 2372 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2373 2374 {frontend::ASTPrint, OPT_ast_print}, 2375 {frontend::ASTView, OPT_ast_view}, 2376 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2377 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2378 {frontend::DumpTokens, OPT_dump_tokens}, 2379 {frontend::EmitAssembly, OPT_S}, 2380 {frontend::EmitBC, OPT_emit_llvm_bc}, 2381 {frontend::EmitHTML, OPT_emit_html}, 2382 {frontend::EmitLLVM, OPT_emit_llvm}, 2383 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2384 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2385 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2386 {frontend::EmitObj, OPT_emit_obj}, 2387 2388 {frontend::FixIt, OPT_fixit_EQ}, 2389 {frontend::FixIt, OPT_fixit}, 2390 2391 {frontend::GenerateModule, OPT_emit_module}, 2392 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2393 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2394 {frontend::GeneratePCH, OPT_emit_pch}, 2395 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2396 {frontend::InitOnly, OPT_init_only}, 2397 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2398 {frontend::ModuleFileInfo, OPT_module_file_info}, 2399 {frontend::VerifyPCH, OPT_verify_pch}, 2400 {frontend::PrintPreamble, OPT_print_preamble}, 2401 {frontend::PrintPreprocessedInput, OPT_E}, 2402 {frontend::TemplightDump, OPT_templight_dump}, 2403 {frontend::RewriteMacros, OPT_rewrite_macros}, 2404 {frontend::RewriteObjC, OPT_rewrite_objc}, 2405 {frontend::RewriteTest, OPT_rewrite_test}, 2406 {frontend::RunAnalysis, OPT_analyze}, 2407 {frontend::MigrateSource, OPT_migrate}, 2408 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2409 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2410 OPT_print_dependency_directives_minimized_source}, 2411 }; 2412 2413 return Table; 2414 } 2415 2416 /// Maps command line option to frontend action. 2417 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2418 for (const auto &ActionOpt : getFrontendActionTable()) 2419 if (ActionOpt.second == Opt.getID()) 2420 return ActionOpt.first; 2421 2422 return None; 2423 } 2424 2425 /// Maps frontend action to command line option. 2426 static Optional<OptSpecifier> 2427 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2428 for (const auto &ActionOpt : getFrontendActionTable()) 2429 if (ActionOpt.first == ProgramAction) 2430 return OptSpecifier(ActionOpt.second); 2431 2432 return None; 2433 } 2434 2435 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2436 SmallVectorImpl<const char *> &Args, 2437 CompilerInvocation::StringAllocator SA, 2438 bool IsHeader) { 2439 const FrontendOptions &FrontendOpts = Opts; 2440 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2441 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2442 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2443 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2444 MERGER, EXTRACTOR, TABLE_INDEX) \ 2445 GENERATE_OPTION_WITH_MARSHALLING( \ 2446 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2447 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2448 #include "clang/Driver/Options.inc" 2449 #undef FRONTEND_OPTION_WITH_MARSHALLING 2450 2451 Optional<OptSpecifier> ProgramActionOpt = 2452 getProgramActionOpt(Opts.ProgramAction); 2453 2454 // Generating a simple flag covers most frontend actions. 2455 std::function<void()> GenerateProgramAction = [&]() { 2456 GenerateArg(Args, *ProgramActionOpt, SA); 2457 }; 2458 2459 if (!ProgramActionOpt) { 2460 // PluginAction is the only program action handled separately. 2461 assert(Opts.ProgramAction == frontend::PluginAction && 2462 "Frontend action without option."); 2463 GenerateProgramAction = [&]() { 2464 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2465 }; 2466 } 2467 2468 // FIXME: Simplify the complex 'AST dump' command line. 2469 if (Opts.ProgramAction == frontend::ASTDump) { 2470 GenerateProgramAction = [&]() { 2471 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2472 // marshalling infrastructure. 2473 2474 if (Opts.ASTDumpFormat != ADOF_Default) { 2475 StringRef Format; 2476 switch (Opts.ASTDumpFormat) { 2477 case ADOF_Default: 2478 llvm_unreachable("Default AST dump format."); 2479 case ADOF_JSON: 2480 Format = "json"; 2481 break; 2482 } 2483 2484 if (Opts.ASTDumpAll) 2485 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2486 if (Opts.ASTDumpDecls) 2487 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2488 } else { 2489 if (Opts.ASTDumpAll) 2490 GenerateArg(Args, OPT_ast_dump_all, SA); 2491 if (Opts.ASTDumpDecls) 2492 GenerateArg(Args, OPT_ast_dump, SA); 2493 } 2494 }; 2495 } 2496 2497 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2498 GenerateProgramAction = [&]() { 2499 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2500 }; 2501 } 2502 2503 GenerateProgramAction(); 2504 2505 for (const auto &PluginArgs : Opts.PluginArgs) { 2506 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2507 const char *Spelling = 2508 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2509 for (const auto &PluginArg : PluginArgs.second) 2510 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2511 } 2512 2513 for (const auto &Ext : Opts.ModuleFileExtensions) 2514 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2515 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2516 2517 if (!Opts.CodeCompletionAt.FileName.empty()) 2518 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2519 SA); 2520 2521 for (const auto &Plugin : Opts.Plugins) 2522 GenerateArg(Args, OPT_load, Plugin, SA); 2523 2524 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2525 2526 for (const auto &ModuleFile : Opts.ModuleFiles) 2527 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2528 2529 if (Opts.AuxTargetCPU.hasValue()) 2530 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2531 2532 if (Opts.AuxTargetFeatures.hasValue()) 2533 for (const auto &Feature : *Opts.AuxTargetFeatures) 2534 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2535 2536 { 2537 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2538 StringRef ModuleMap = 2539 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2540 StringRef Header = IsHeader ? "-header" : ""; 2541 2542 StringRef Lang; 2543 switch (Opts.DashX.getLanguage()) { 2544 case Language::C: 2545 Lang = "c"; 2546 break; 2547 case Language::OpenCL: 2548 Lang = "cl"; 2549 break; 2550 case Language::OpenCLCXX: 2551 Lang = "clcpp"; 2552 break; 2553 case Language::CUDA: 2554 Lang = "cuda"; 2555 break; 2556 case Language::HIP: 2557 Lang = "hip"; 2558 break; 2559 case Language::CXX: 2560 Lang = "c++"; 2561 break; 2562 case Language::ObjC: 2563 Lang = "objective-c"; 2564 break; 2565 case Language::ObjCXX: 2566 Lang = "objective-c++"; 2567 break; 2568 case Language::RenderScript: 2569 Lang = "renderscript"; 2570 break; 2571 case Language::Asm: 2572 Lang = "assembler-with-cpp"; 2573 break; 2574 case Language::Unknown: 2575 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2576 "Generating -x argument for unknown language (not precompiled)."); 2577 Lang = "ast"; 2578 break; 2579 case Language::LLVM_IR: 2580 Lang = "ir"; 2581 break; 2582 } 2583 2584 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2585 } 2586 2587 // OPT_INPUT has a unique class, generate it directly. 2588 for (const auto &Input : Opts.Inputs) 2589 Args.push_back(SA(Input.getFile())); 2590 } 2591 2592 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2593 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2594 unsigned NumErrorsBefore = Diags.getNumErrors(); 2595 2596 FrontendOptions &FrontendOpts = Opts; 2597 2598 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2599 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2600 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2601 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2602 MERGER, EXTRACTOR, TABLE_INDEX) \ 2603 PARSE_OPTION_WITH_MARSHALLING( \ 2604 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2605 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2606 #include "clang/Driver/Options.inc" 2607 #undef FRONTEND_OPTION_WITH_MARSHALLING 2608 2609 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2610 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2611 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2612 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2613 assert(ProgramAction && "Option specifier not in Action_Group."); 2614 2615 if (ProgramAction == frontend::ASTDump && 2616 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2617 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2618 .CaseLower("default", ADOF_Default) 2619 .CaseLower("json", ADOF_JSON) 2620 .Default(std::numeric_limits<unsigned>::max()); 2621 2622 if (Val != std::numeric_limits<unsigned>::max()) 2623 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2624 else { 2625 Diags.Report(diag::err_drv_invalid_value) 2626 << A->getAsString(Args) << A->getValue(); 2627 Opts.ASTDumpFormat = ADOF_Default; 2628 } 2629 } 2630 2631 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2632 Opts.FixItSuffix = A->getValue(); 2633 2634 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2635 StringRef ArgStr = 2636 Args.hasArg(OPT_interface_stub_version_EQ) 2637 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2638 : "ifs-v1"; 2639 if (ArgStr == "experimental-yaml-elf-v1" || 2640 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2641 ArgStr == "experimental-tapi-elf-v1") { 2642 std::string ErrorMessage = 2643 "Invalid interface stub format: " + ArgStr.str() + 2644 " is deprecated."; 2645 Diags.Report(diag::err_drv_invalid_value) 2646 << "Must specify a valid interface stub format type, ie: " 2647 "-interface-stub-version=ifs-v1" 2648 << ErrorMessage; 2649 ProgramAction = frontend::ParseSyntaxOnly; 2650 } else if (!ArgStr.startswith("ifs-")) { 2651 std::string ErrorMessage = 2652 "Invalid interface stub format: " + ArgStr.str() + "."; 2653 Diags.Report(diag::err_drv_invalid_value) 2654 << "Must specify a valid interface stub format type, ie: " 2655 "-interface-stub-version=ifs-v1" 2656 << ErrorMessage; 2657 ProgramAction = frontend::ParseSyntaxOnly; 2658 } 2659 } 2660 2661 Opts.ProgramAction = *ProgramAction; 2662 } 2663 2664 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2665 Opts.Plugins.emplace_back(A->getValue(0)); 2666 Opts.ProgramAction = frontend::PluginAction; 2667 Opts.ActionName = A->getValue(); 2668 } 2669 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2670 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2671 2672 for (const std::string &Arg : 2673 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2674 std::string BlockName; 2675 unsigned MajorVersion; 2676 unsigned MinorVersion; 2677 bool Hashed; 2678 std::string UserInfo; 2679 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2680 MinorVersion, Hashed, UserInfo)) { 2681 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2682 2683 continue; 2684 } 2685 2686 // Add the testing module file extension. 2687 Opts.ModuleFileExtensions.push_back( 2688 std::make_shared<TestModuleFileExtension>( 2689 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2690 } 2691 2692 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2693 Opts.CodeCompletionAt = 2694 ParsedSourceLocation::FromString(A->getValue()); 2695 if (Opts.CodeCompletionAt.FileName.empty()) 2696 Diags.Report(diag::err_drv_invalid_value) 2697 << A->getAsString(Args) << A->getValue(); 2698 } 2699 2700 Opts.Plugins = Args.getAllArgValues(OPT_load); 2701 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2702 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2703 // Only the -fmodule-file=<file> form. 2704 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2705 StringRef Val = A->getValue(); 2706 if (Val.find('=') == StringRef::npos) 2707 Opts.ModuleFiles.push_back(std::string(Val)); 2708 } 2709 2710 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2711 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2712 << "-emit-module"; 2713 2714 if (Args.hasArg(OPT_aux_target_cpu)) 2715 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2716 if (Args.hasArg(OPT_aux_target_feature)) 2717 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2718 2719 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2720 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2721 Diags.Report(diag::err_drv_argument_not_allowed_with) 2722 << "ARC migration" << "ObjC migration"; 2723 } 2724 2725 InputKind DashX(Language::Unknown); 2726 if (const Arg *A = Args.getLastArg(OPT_x)) { 2727 StringRef XValue = A->getValue(); 2728 2729 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2730 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2731 bool Preprocessed = XValue.consume_back("-cpp-output"); 2732 bool ModuleMap = XValue.consume_back("-module-map"); 2733 IsHeaderFile = !Preprocessed && !ModuleMap && 2734 XValue != "precompiled-header" && 2735 XValue.consume_back("-header"); 2736 2737 // Principal languages. 2738 DashX = llvm::StringSwitch<InputKind>(XValue) 2739 .Case("c", Language::C) 2740 .Case("cl", Language::OpenCL) 2741 .Case("clcpp", Language::OpenCLCXX) 2742 .Case("cuda", Language::CUDA) 2743 .Case("hip", Language::HIP) 2744 .Case("c++", Language::CXX) 2745 .Case("objective-c", Language::ObjC) 2746 .Case("objective-c++", Language::ObjCXX) 2747 .Case("renderscript", Language::RenderScript) 2748 .Default(Language::Unknown); 2749 2750 // "objc[++]-cpp-output" is an acceptable synonym for 2751 // "objective-c[++]-cpp-output". 2752 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2753 DashX = llvm::StringSwitch<InputKind>(XValue) 2754 .Case("objc", Language::ObjC) 2755 .Case("objc++", Language::ObjCXX) 2756 .Default(Language::Unknown); 2757 2758 // Some special cases cannot be combined with suffixes. 2759 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2760 DashX = llvm::StringSwitch<InputKind>(XValue) 2761 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2762 .Case("assembler-with-cpp", Language::Asm) 2763 .Cases("ast", "pcm", "precompiled-header", 2764 InputKind(Language::Unknown, InputKind::Precompiled)) 2765 .Case("ir", Language::LLVM_IR) 2766 .Default(Language::Unknown); 2767 2768 if (DashX.isUnknown()) 2769 Diags.Report(diag::err_drv_invalid_value) 2770 << A->getAsString(Args) << A->getValue(); 2771 2772 if (Preprocessed) 2773 DashX = DashX.getPreprocessed(); 2774 if (ModuleMap) 2775 DashX = DashX.withFormat(InputKind::ModuleMap); 2776 } 2777 2778 // '-' is the default input if none is given. 2779 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2780 Opts.Inputs.clear(); 2781 if (Inputs.empty()) 2782 Inputs.push_back("-"); 2783 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2784 InputKind IK = DashX; 2785 if (IK.isUnknown()) { 2786 IK = FrontendOptions::getInputKindForExtension( 2787 StringRef(Inputs[i]).rsplit('.').second); 2788 // FIXME: Warn on this? 2789 if (IK.isUnknown()) 2790 IK = Language::C; 2791 // FIXME: Remove this hack. 2792 if (i == 0) 2793 DashX = IK; 2794 } 2795 2796 bool IsSystem = false; 2797 2798 // The -emit-module action implicitly takes a module map. 2799 if (Opts.ProgramAction == frontend::GenerateModule && 2800 IK.getFormat() == InputKind::Source) { 2801 IK = IK.withFormat(InputKind::ModuleMap); 2802 IsSystem = Opts.IsSystemModule; 2803 } 2804 2805 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2806 } 2807 2808 Opts.DashX = DashX; 2809 2810 return Diags.getNumErrors() == NumErrorsBefore; 2811 } 2812 2813 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2814 void *MainAddr) { 2815 std::string ClangExecutable = 2816 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2817 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2818 } 2819 2820 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2821 SmallVectorImpl<const char *> &Args, 2822 CompilerInvocation::StringAllocator SA) { 2823 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2824 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2825 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2826 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2827 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2828 MERGER, EXTRACTOR, TABLE_INDEX) \ 2829 GENERATE_OPTION_WITH_MARSHALLING( \ 2830 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2831 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2832 #include "clang/Driver/Options.inc" 2833 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2834 2835 if (Opts.UseLibcxx) 2836 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2837 2838 if (!Opts.ModuleCachePath.empty()) 2839 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2840 2841 for (const auto &File : Opts.PrebuiltModuleFiles) 2842 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2843 2844 for (const auto &Path : Opts.PrebuiltModulePaths) 2845 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2846 2847 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2848 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2849 2850 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2851 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2852 llvm::Optional<bool> IsFramework, 2853 llvm::Optional<bool> IgnoreSysRoot) { 2854 return llvm::find(Groups, Entry.Group) != Groups.end() && 2855 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2856 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2857 }; 2858 2859 auto It = Opts.UserEntries.begin(); 2860 auto End = Opts.UserEntries.end(); 2861 2862 // Add -I..., -F..., and -index-header-map options in order. 2863 for (; It < End && 2864 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2865 ++It) { 2866 OptSpecifier Opt = [It, Matches]() { 2867 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2868 return OPT_F; 2869 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2870 return OPT_I; 2871 if (Matches(*It, frontend::Angled, true, true)) 2872 return OPT_F; 2873 if (Matches(*It, frontend::Angled, false, true)) 2874 return OPT_I; 2875 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2876 }(); 2877 2878 if (It->Group == frontend::IndexHeaderMap) 2879 GenerateArg(Args, OPT_index_header_map, SA); 2880 GenerateArg(Args, Opt, It->Path, SA); 2881 }; 2882 2883 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2884 // have already been generated as "-I[xx]yy". If that's the case, their 2885 // position on command line was such that this has no semantic impact on 2886 // include paths. 2887 for (; It < End && 2888 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2889 ++It) { 2890 OptSpecifier Opt = 2891 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2892 GenerateArg(Args, Opt, It->Path, SA); 2893 } 2894 2895 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2896 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2897 // command line was such that this has no semantic impact on include paths. 2898 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2899 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2900 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2901 GenerateArg(Args, OPT_iquote, It->Path, SA); 2902 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2903 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2904 It->Path, SA); 2905 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2906 GenerateArg(Args, OPT_iframework, It->Path, SA); 2907 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2908 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2909 2910 // Add the paths for the various language specific isystem flags. 2911 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2912 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2913 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2914 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2915 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2916 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2917 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2918 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2919 2920 // Add the internal paths from a driver that detects standard include paths. 2921 // Note: Some paths that came from "-internal-isystem" arguments may have 2922 // already been generated as "-isystem". If that's the case, their position on 2923 // command line was such that this has no semantic impact on include paths. 2924 for (; It < End && 2925 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2926 ++It) { 2927 OptSpecifier Opt = It->Group == frontend::System 2928 ? OPT_internal_isystem 2929 : OPT_internal_externc_isystem; 2930 GenerateArg(Args, Opt, It->Path, SA); 2931 } 2932 2933 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2934 2935 // Add the path prefixes which are implicitly treated as being system headers. 2936 for (const auto &P : Opts.SystemHeaderPrefixes) { 2937 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2938 : OPT_no_system_header_prefix; 2939 GenerateArg(Args, Opt, P.Prefix, SA); 2940 } 2941 2942 for (const std::string &F : Opts.VFSOverlayFiles) 2943 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2944 } 2945 2946 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2947 DiagnosticsEngine &Diags, 2948 const std::string &WorkingDir) { 2949 unsigned NumErrorsBefore = Diags.getNumErrors(); 2950 2951 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2952 2953 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2954 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2955 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2956 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2957 MERGER, EXTRACTOR, TABLE_INDEX) \ 2958 PARSE_OPTION_WITH_MARSHALLING( \ 2959 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2960 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2961 #include "clang/Driver/Options.inc" 2962 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2963 2964 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2965 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2966 2967 // Canonicalize -fmodules-cache-path before storing it. 2968 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2969 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2970 if (WorkingDir.empty()) 2971 llvm::sys::fs::make_absolute(P); 2972 else 2973 llvm::sys::fs::make_absolute(WorkingDir, P); 2974 } 2975 llvm::sys::path::remove_dots(P); 2976 Opts.ModuleCachePath = std::string(P.str()); 2977 2978 // Only the -fmodule-file=<name>=<file> form. 2979 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2980 StringRef Val = A->getValue(); 2981 if (Val.find('=') != StringRef::npos){ 2982 auto Split = Val.split('='); 2983 Opts.PrebuiltModuleFiles.insert( 2984 {std::string(Split.first), std::string(Split.second)}); 2985 } 2986 } 2987 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2988 Opts.AddPrebuiltModulePath(A->getValue()); 2989 2990 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2991 StringRef MacroDef = A->getValue(); 2992 Opts.ModulesIgnoreMacros.insert( 2993 llvm::CachedHashString(MacroDef.split('=').first)); 2994 } 2995 2996 // Add -I..., -F..., and -index-header-map options in order. 2997 bool IsIndexHeaderMap = false; 2998 bool IsSysrootSpecified = 2999 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3000 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3001 if (A->getOption().matches(OPT_index_header_map)) { 3002 // -index-header-map applies to the next -I or -F. 3003 IsIndexHeaderMap = true; 3004 continue; 3005 } 3006 3007 frontend::IncludeDirGroup Group = 3008 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3009 3010 bool IsFramework = A->getOption().matches(OPT_F); 3011 std::string Path = A->getValue(); 3012 3013 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3014 SmallString<32> Buffer; 3015 llvm::sys::path::append(Buffer, Opts.Sysroot, 3016 llvm::StringRef(A->getValue()).substr(1)); 3017 Path = std::string(Buffer.str()); 3018 } 3019 3020 Opts.AddPath(Path, Group, IsFramework, 3021 /*IgnoreSysroot*/ true); 3022 IsIndexHeaderMap = false; 3023 } 3024 3025 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3026 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3027 for (const auto *A : 3028 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3029 if (A->getOption().matches(OPT_iprefix)) 3030 Prefix = A->getValue(); 3031 else if (A->getOption().matches(OPT_iwithprefix)) 3032 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3033 else 3034 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3035 } 3036 3037 for (const auto *A : Args.filtered(OPT_idirafter)) 3038 Opts.AddPath(A->getValue(), frontend::After, false, true); 3039 for (const auto *A : Args.filtered(OPT_iquote)) 3040 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3041 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3042 Opts.AddPath(A->getValue(), frontend::System, false, 3043 !A->getOption().matches(OPT_iwithsysroot)); 3044 for (const auto *A : Args.filtered(OPT_iframework)) 3045 Opts.AddPath(A->getValue(), frontend::System, true, true); 3046 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3047 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3048 /*IgnoreSysRoot=*/false); 3049 3050 // Add the paths for the various language specific isystem flags. 3051 for (const auto *A : Args.filtered(OPT_c_isystem)) 3052 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3053 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3054 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3055 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3056 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3057 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3058 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3059 3060 // Add the internal paths from a driver that detects standard include paths. 3061 for (const auto *A : 3062 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3063 frontend::IncludeDirGroup Group = frontend::System; 3064 if (A->getOption().matches(OPT_internal_externc_isystem)) 3065 Group = frontend::ExternCSystem; 3066 Opts.AddPath(A->getValue(), Group, false, true); 3067 } 3068 3069 // Add the path prefixes which are implicitly treated as being system headers. 3070 for (const auto *A : 3071 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3072 Opts.AddSystemHeaderPrefix( 3073 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3074 3075 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3076 Opts.AddVFSOverlayFile(A->getValue()); 3077 3078 return Diags.getNumErrors() == NumErrorsBefore; 3079 } 3080 3081 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3082 const llvm::Triple &T, 3083 std::vector<std::string> &Includes, 3084 LangStandard::Kind LangStd) { 3085 // Set some properties which depend solely on the input kind; it would be nice 3086 // to move these to the language standard, and have the driver resolve the 3087 // input kind + language standard. 3088 // 3089 // FIXME: Perhaps a better model would be for a single source file to have 3090 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3091 // simultaneously active? 3092 if (IK.getLanguage() == Language::Asm) { 3093 Opts.AsmPreprocessor = 1; 3094 } else if (IK.isObjectiveC()) { 3095 Opts.ObjC = 1; 3096 } 3097 3098 if (LangStd == LangStandard::lang_unspecified) { 3099 // Based on the base language, pick one. 3100 switch (IK.getLanguage()) { 3101 case Language::Unknown: 3102 case Language::LLVM_IR: 3103 llvm_unreachable("Invalid input kind!"); 3104 case Language::OpenCL: 3105 LangStd = LangStandard::lang_opencl12; 3106 break; 3107 case Language::OpenCLCXX: 3108 LangStd = LangStandard::lang_openclcpp10; 3109 break; 3110 case Language::CUDA: 3111 LangStd = LangStandard::lang_cuda; 3112 break; 3113 case Language::Asm: 3114 case Language::C: 3115 #if defined(CLANG_DEFAULT_STD_C) 3116 LangStd = CLANG_DEFAULT_STD_C; 3117 #else 3118 // The PS4 uses C99 as the default C standard. 3119 if (T.isPS4()) 3120 LangStd = LangStandard::lang_gnu99; 3121 else 3122 LangStd = LangStandard::lang_gnu17; 3123 #endif 3124 break; 3125 case Language::ObjC: 3126 #if defined(CLANG_DEFAULT_STD_C) 3127 LangStd = CLANG_DEFAULT_STD_C; 3128 #else 3129 LangStd = LangStandard::lang_gnu11; 3130 #endif 3131 break; 3132 case Language::CXX: 3133 case Language::ObjCXX: 3134 #if defined(CLANG_DEFAULT_STD_CXX) 3135 LangStd = CLANG_DEFAULT_STD_CXX; 3136 #else 3137 LangStd = LangStandard::lang_gnucxx14; 3138 #endif 3139 break; 3140 case Language::RenderScript: 3141 LangStd = LangStandard::lang_c99; 3142 break; 3143 case Language::HIP: 3144 LangStd = LangStandard::lang_hip; 3145 break; 3146 } 3147 } 3148 3149 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3150 Opts.LangStd = LangStd; 3151 Opts.LineComment = Std.hasLineComments(); 3152 Opts.C99 = Std.isC99(); 3153 Opts.C11 = Std.isC11(); 3154 Opts.C17 = Std.isC17(); 3155 Opts.C2x = Std.isC2x(); 3156 Opts.CPlusPlus = Std.isCPlusPlus(); 3157 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3158 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3159 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3160 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3161 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3162 Opts.GNUMode = Std.isGNUMode(); 3163 Opts.GNUCVersion = 0; 3164 Opts.HexFloats = Std.hasHexFloats(); 3165 Opts.ImplicitInt = Std.hasImplicitInt(); 3166 3167 // Set OpenCL Version. 3168 Opts.OpenCL = Std.isOpenCL(); 3169 if (LangStd == LangStandard::lang_opencl10) 3170 Opts.OpenCLVersion = 100; 3171 else if (LangStd == LangStandard::lang_opencl11) 3172 Opts.OpenCLVersion = 110; 3173 else if (LangStd == LangStandard::lang_opencl12) 3174 Opts.OpenCLVersion = 120; 3175 else if (LangStd == LangStandard::lang_opencl20) 3176 Opts.OpenCLVersion = 200; 3177 else if (LangStd == LangStandard::lang_opencl30) 3178 Opts.OpenCLVersion = 300; 3179 else if (LangStd == LangStandard::lang_openclcpp10) 3180 Opts.OpenCLCPlusPlusVersion = 100; 3181 else if (LangStd == LangStandard::lang_openclcpp2021) 3182 Opts.OpenCLCPlusPlusVersion = 202100; 3183 3184 // OpenCL has some additional defaults. 3185 if (Opts.OpenCL) { 3186 Opts.AltiVec = 0; 3187 Opts.ZVector = 0; 3188 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3189 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3190 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3191 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3192 3193 // Include default header file for OpenCL. 3194 if (Opts.IncludeDefaultHeader) { 3195 if (Opts.DeclareOpenCLBuiltins) { 3196 // Only include base header file for builtin types and constants. 3197 Includes.push_back("opencl-c-base.h"); 3198 } else { 3199 Includes.push_back("opencl-c.h"); 3200 } 3201 } 3202 } 3203 3204 Opts.HIP = IK.getLanguage() == Language::HIP; 3205 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3206 if (Opts.HIP) { 3207 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3208 // fuses multiplication/addition instructions without contract flag from 3209 // device library functions in LLVM bitcode, which causes accuracy loss in 3210 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3211 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3212 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3213 // FP contract option is used to allow fuse across statements in frontend 3214 // whereas respecting contract flag in backend. 3215 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3216 } else if (Opts.CUDA) { 3217 // Allow fuse across statements disregarding pragmas. 3218 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3219 } 3220 3221 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3222 3223 // OpenCL and C++ both have bool, true, false keywords. 3224 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3225 3226 // OpenCL has half keyword 3227 Opts.Half = Opts.OpenCL; 3228 } 3229 3230 /// Check if input file kind and language standard are compatible. 3231 static bool IsInputCompatibleWithStandard(InputKind IK, 3232 const LangStandard &S) { 3233 switch (IK.getLanguage()) { 3234 case Language::Unknown: 3235 case Language::LLVM_IR: 3236 llvm_unreachable("should not parse language flags for this input"); 3237 3238 case Language::C: 3239 case Language::ObjC: 3240 case Language::RenderScript: 3241 return S.getLanguage() == Language::C; 3242 3243 case Language::OpenCL: 3244 return S.getLanguage() == Language::OpenCL || 3245 S.getLanguage() == Language::OpenCLCXX; 3246 3247 case Language::OpenCLCXX: 3248 return S.getLanguage() == Language::OpenCLCXX; 3249 3250 case Language::CXX: 3251 case Language::ObjCXX: 3252 return S.getLanguage() == Language::CXX; 3253 3254 case Language::CUDA: 3255 // FIXME: What -std= values should be permitted for CUDA compilations? 3256 return S.getLanguage() == Language::CUDA || 3257 S.getLanguage() == Language::CXX; 3258 3259 case Language::HIP: 3260 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3261 3262 case Language::Asm: 3263 // Accept (and ignore) all -std= values. 3264 // FIXME: The -std= value is not ignored; it affects the tokenization 3265 // and preprocessing rules if we're preprocessing this asm input. 3266 return true; 3267 } 3268 3269 llvm_unreachable("unexpected input language"); 3270 } 3271 3272 /// Get language name for given input kind. 3273 static const StringRef GetInputKindName(InputKind IK) { 3274 switch (IK.getLanguage()) { 3275 case Language::C: 3276 return "C"; 3277 case Language::ObjC: 3278 return "Objective-C"; 3279 case Language::CXX: 3280 return "C++"; 3281 case Language::ObjCXX: 3282 return "Objective-C++"; 3283 case Language::OpenCL: 3284 return "OpenCL"; 3285 case Language::OpenCLCXX: 3286 return "C++ for OpenCL"; 3287 case Language::CUDA: 3288 return "CUDA"; 3289 case Language::RenderScript: 3290 return "RenderScript"; 3291 case Language::HIP: 3292 return "HIP"; 3293 3294 case Language::Asm: 3295 return "Asm"; 3296 case Language::LLVM_IR: 3297 return "LLVM IR"; 3298 3299 case Language::Unknown: 3300 break; 3301 } 3302 llvm_unreachable("unknown input language"); 3303 } 3304 3305 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3306 SmallVectorImpl<const char *> &Args, 3307 StringAllocator SA, 3308 const llvm::Triple &T, InputKind IK) { 3309 if (IK.getFormat() == InputKind::Precompiled || 3310 IK.getLanguage() == Language::LLVM_IR) { 3311 if (Opts.ObjCAutoRefCount) 3312 GenerateArg(Args, OPT_fobjc_arc, SA); 3313 if (Opts.PICLevel != 0) 3314 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3315 if (Opts.PIE) 3316 GenerateArg(Args, OPT_pic_is_pie, SA); 3317 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3318 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3319 3320 return; 3321 } 3322 3323 OptSpecifier StdOpt; 3324 switch (Opts.LangStd) { 3325 case LangStandard::lang_opencl10: 3326 case LangStandard::lang_opencl11: 3327 case LangStandard::lang_opencl12: 3328 case LangStandard::lang_opencl20: 3329 case LangStandard::lang_opencl30: 3330 case LangStandard::lang_openclcpp10: 3331 case LangStandard::lang_openclcpp2021: 3332 StdOpt = OPT_cl_std_EQ; 3333 break; 3334 default: 3335 StdOpt = OPT_std_EQ; 3336 break; 3337 } 3338 3339 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3340 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3341 3342 if (Opts.IncludeDefaultHeader) 3343 GenerateArg(Args, OPT_finclude_default_header, SA); 3344 if (Opts.DeclareOpenCLBuiltins) 3345 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3346 3347 const LangOptions *LangOpts = &Opts; 3348 3349 #define LANG_OPTION_WITH_MARSHALLING( \ 3350 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3351 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3352 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3353 MERGER, EXTRACTOR, TABLE_INDEX) \ 3354 GENERATE_OPTION_WITH_MARSHALLING( \ 3355 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3356 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3357 #include "clang/Driver/Options.inc" 3358 #undef LANG_OPTION_WITH_MARSHALLING 3359 3360 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3361 3362 if (Opts.ObjC) { 3363 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3364 3365 if (Opts.GC == LangOptions::GCOnly) 3366 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3367 else if (Opts.GC == LangOptions::HybridGC) 3368 GenerateArg(Args, OPT_fobjc_gc, SA); 3369 else if (Opts.ObjCAutoRefCount == 1) 3370 GenerateArg(Args, OPT_fobjc_arc, SA); 3371 3372 if (Opts.ObjCWeakRuntime) 3373 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3374 3375 if (Opts.ObjCWeak) 3376 GenerateArg(Args, OPT_fobjc_weak, SA); 3377 3378 if (Opts.ObjCSubscriptingLegacyRuntime) 3379 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3380 } 3381 3382 if (Opts.GNUCVersion != 0) { 3383 unsigned Major = Opts.GNUCVersion / 100 / 100; 3384 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3385 unsigned Patch = Opts.GNUCVersion % 100; 3386 GenerateArg(Args, OPT_fgnuc_version_EQ, 3387 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3388 } 3389 3390 if (Opts.IgnoreXCOFFVisibility) 3391 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3392 3393 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3394 GenerateArg(Args, OPT_ftrapv, SA); 3395 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3396 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3397 GenerateArg(Args, OPT_fwrapv, SA); 3398 } 3399 3400 if (Opts.MSCompatibilityVersion != 0) { 3401 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3402 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3403 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3404 GenerateArg(Args, OPT_fms_compatibility_version, 3405 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3406 } 3407 3408 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3409 if (!Opts.Trigraphs) 3410 GenerateArg(Args, OPT_fno_trigraphs, SA); 3411 } else { 3412 if (Opts.Trigraphs) 3413 GenerateArg(Args, OPT_ftrigraphs, SA); 3414 } 3415 3416 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3417 GenerateArg(Args, OPT_fblocks, SA); 3418 3419 if (Opts.ConvergentFunctions && 3420 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3421 GenerateArg(Args, OPT_fconvergent_functions, SA); 3422 3423 if (Opts.NoBuiltin && !Opts.Freestanding) 3424 GenerateArg(Args, OPT_fno_builtin, SA); 3425 3426 if (!Opts.NoBuiltin) 3427 for (const auto &Func : Opts.NoBuiltinFuncs) 3428 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3429 3430 if (Opts.LongDoubleSize == 128) 3431 GenerateArg(Args, OPT_mlong_double_128, SA); 3432 else if (Opts.LongDoubleSize == 64) 3433 GenerateArg(Args, OPT_mlong_double_64, SA); 3434 3435 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3436 3437 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3438 // '-fopenmp-targets='. 3439 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3440 GenerateArg(Args, OPT_fopenmp, SA); 3441 3442 if (Opts.OpenMP != 50) 3443 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3444 3445 if (!Opts.OpenMPUseTLS) 3446 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3447 3448 if (Opts.OpenMPIsDevice) 3449 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3450 3451 if (Opts.OpenMPIRBuilder) 3452 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3453 } 3454 3455 if (Opts.OpenMPSimd) { 3456 GenerateArg(Args, OPT_fopenmp_simd, SA); 3457 3458 if (Opts.OpenMP != 50) 3459 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3460 } 3461 3462 if (Opts.OpenMPCUDANumSMs != 0) 3463 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3464 Twine(Opts.OpenMPCUDANumSMs), SA); 3465 3466 if (Opts.OpenMPCUDABlocksPerSM != 0) 3467 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3468 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3469 3470 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3471 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3472 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3473 3474 if (!Opts.OMPTargetTriples.empty()) { 3475 std::string Targets; 3476 llvm::raw_string_ostream OS(Targets); 3477 llvm::interleave( 3478 Opts.OMPTargetTriples, OS, 3479 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3480 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3481 } 3482 3483 if (!Opts.OMPHostIRFile.empty()) 3484 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3485 3486 if (Opts.OpenMPCUDAMode) 3487 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3488 3489 if (Opts.OpenMPCUDAForceFullRuntime) 3490 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3491 3492 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3493 // generated from CodeGenOptions. 3494 3495 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3496 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3497 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3498 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3499 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3500 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3501 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3502 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3503 3504 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3505 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3506 3507 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3508 for (const std::string &F : Opts.NoSanitizeFiles) 3509 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3510 3511 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3512 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3513 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3514 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3515 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3516 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3517 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3518 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3519 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3520 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3521 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3522 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3523 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3524 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3525 3526 if (Opts.getSignReturnAddressScope() == 3527 LangOptions::SignReturnAddressScopeKind::All) 3528 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3529 else if (Opts.getSignReturnAddressScope() == 3530 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3531 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3532 3533 if (Opts.getSignReturnAddressKey() == 3534 LangOptions::SignReturnAddressKeyKind::BKey) 3535 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3536 3537 if (Opts.CXXABI) 3538 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3539 SA); 3540 3541 if (Opts.RelativeCXXABIVTables) 3542 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3543 else 3544 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3545 3546 for (const auto &MP : Opts.MacroPrefixMap) 3547 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3548 } 3549 3550 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3551 InputKind IK, const llvm::Triple &T, 3552 std::vector<std::string> &Includes, 3553 DiagnosticsEngine &Diags) { 3554 unsigned NumErrorsBefore = Diags.getNumErrors(); 3555 3556 if (IK.getFormat() == InputKind::Precompiled || 3557 IK.getLanguage() == Language::LLVM_IR) { 3558 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3559 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3560 // what the input type is. 3561 if (Args.hasArg(OPT_fobjc_arc)) 3562 Opts.ObjCAutoRefCount = 1; 3563 // PICLevel and PIELevel are needed during code generation and this should 3564 // be set regardless of the input type. 3565 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3566 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3567 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3568 Diags, Opts.Sanitize); 3569 3570 return Diags.getNumErrors() == NumErrorsBefore; 3571 } 3572 3573 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3574 // FIXME: Should we really be parsing this for an Language::Asm input? 3575 3576 // FIXME: Cleanup per-file based stuff. 3577 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3578 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3579 LangStd = LangStandard::getLangKind(A->getValue()); 3580 if (LangStd == LangStandard::lang_unspecified) { 3581 Diags.Report(diag::err_drv_invalid_value) 3582 << A->getAsString(Args) << A->getValue(); 3583 // Report supported standards with short description. 3584 for (unsigned KindValue = 0; 3585 KindValue != LangStandard::lang_unspecified; 3586 ++KindValue) { 3587 const LangStandard &Std = LangStandard::getLangStandardForKind( 3588 static_cast<LangStandard::Kind>(KindValue)); 3589 if (IsInputCompatibleWithStandard(IK, Std)) { 3590 auto Diag = Diags.Report(diag::note_drv_use_standard); 3591 Diag << Std.getName() << Std.getDescription(); 3592 unsigned NumAliases = 0; 3593 #define LANGSTANDARD(id, name, lang, desc, features) 3594 #define LANGSTANDARD_ALIAS(id, alias) \ 3595 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3596 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3597 #include "clang/Basic/LangStandards.def" 3598 Diag << NumAliases; 3599 #define LANGSTANDARD(id, name, lang, desc, features) 3600 #define LANGSTANDARD_ALIAS(id, alias) \ 3601 if (KindValue == LangStandard::lang_##id) Diag << alias; 3602 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3603 #include "clang/Basic/LangStandards.def" 3604 } 3605 } 3606 } else { 3607 // Valid standard, check to make sure language and standard are 3608 // compatible. 3609 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3610 if (!IsInputCompatibleWithStandard(IK, Std)) { 3611 Diags.Report(diag::err_drv_argument_not_allowed_with) 3612 << A->getAsString(Args) << GetInputKindName(IK); 3613 } 3614 } 3615 } 3616 3617 // -cl-std only applies for OpenCL language standards. 3618 // Override the -std option in this case. 3619 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3620 LangStandard::Kind OpenCLLangStd 3621 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3622 .Cases("cl", "CL", LangStandard::lang_opencl10) 3623 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3624 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3625 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3626 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3627 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3628 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3629 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3630 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3631 .Default(LangStandard::lang_unspecified); 3632 3633 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3634 Diags.Report(diag::err_drv_invalid_value) 3635 << A->getAsString(Args) << A->getValue(); 3636 } 3637 else 3638 LangStd = OpenCLLangStd; 3639 } 3640 3641 // These need to be parsed now. They are used to set OpenCL defaults. 3642 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3643 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3644 3645 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3646 3647 // The key paths of codegen options defined in Options.td start with 3648 // "LangOpts->". Let's provide the expected variable name and type. 3649 LangOptions *LangOpts = &Opts; 3650 3651 #define LANG_OPTION_WITH_MARSHALLING( \ 3652 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3653 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3654 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3655 MERGER, EXTRACTOR, TABLE_INDEX) \ 3656 PARSE_OPTION_WITH_MARSHALLING( \ 3657 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3658 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3659 #include "clang/Driver/Options.inc" 3660 #undef LANG_OPTION_WITH_MARSHALLING 3661 3662 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3663 StringRef Name = A->getValue(); 3664 if (Name == "full" || Name == "branch") { 3665 Opts.CFProtectionBranch = 1; 3666 } 3667 } 3668 3669 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3670 !Args.hasArg(OPT_sycl_std_EQ)) { 3671 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3672 // provide -sycl-std=, we want to default it to whatever the default SYCL 3673 // version is. I could not find a way to express this with the options 3674 // tablegen because we still want this value to be SYCL_None when the user 3675 // is not in device or host mode. 3676 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3677 } 3678 3679 if (Opts.ObjC) { 3680 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3681 StringRef value = arg->getValue(); 3682 if (Opts.ObjCRuntime.tryParse(value)) 3683 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3684 } 3685 3686 if (Args.hasArg(OPT_fobjc_gc_only)) 3687 Opts.setGC(LangOptions::GCOnly); 3688 else if (Args.hasArg(OPT_fobjc_gc)) 3689 Opts.setGC(LangOptions::HybridGC); 3690 else if (Args.hasArg(OPT_fobjc_arc)) { 3691 Opts.ObjCAutoRefCount = 1; 3692 if (!Opts.ObjCRuntime.allowsARC()) 3693 Diags.Report(diag::err_arc_unsupported_on_runtime); 3694 } 3695 3696 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3697 // whether the feature is actually enabled. This is predominantly 3698 // determined by -fobjc-runtime, but we allow it to be overridden 3699 // from the command line for testing purposes. 3700 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3701 Opts.ObjCWeakRuntime = 1; 3702 else 3703 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3704 3705 // ObjCWeak determines whether __weak is actually enabled. 3706 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3707 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3708 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3709 assert(!Opts.ObjCWeak); 3710 } else if (Opts.getGC() != LangOptions::NonGC) { 3711 Diags.Report(diag::err_objc_weak_with_gc); 3712 } else if (!Opts.ObjCWeakRuntime) { 3713 Diags.Report(diag::err_objc_weak_unsupported); 3714 } else { 3715 Opts.ObjCWeak = 1; 3716 } 3717 } else if (Opts.ObjCAutoRefCount) { 3718 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3719 } 3720 3721 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3722 Opts.ObjCSubscriptingLegacyRuntime = 3723 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3724 } 3725 3726 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3727 // Check that the version has 1 to 3 components and the minor and patch 3728 // versions fit in two decimal digits. 3729 VersionTuple GNUCVer; 3730 bool Invalid = GNUCVer.tryParse(A->getValue()); 3731 unsigned Major = GNUCVer.getMajor(); 3732 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3733 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3734 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3735 Diags.Report(diag::err_drv_invalid_value) 3736 << A->getAsString(Args) << A->getValue(); 3737 } 3738 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3739 } 3740 3741 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3742 // no -fvisibility=* option. 3743 // This is the reason why '-fvisibility' needs to be always generated: 3744 // its absence implies '-mignore-xcoff-visibility'. 3745 // 3746 // Suppose the original cc1 command line does contain '-fvisibility default': 3747 // '-mignore-xcoff-visibility' should not be implied. 3748 // * If '-fvisibility' is not generated (as most options with default values 3749 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3750 // the command line semantics. 3751 // * If '-fvisibility' is generated regardless of its presence and value, 3752 // '-mignore-xcoff-visibility' won't be implied and the command line 3753 // semantics are kept intact. 3754 // 3755 // When the original cc1 command line does **not** contain '-fvisibility', 3756 // '-mignore-xcoff-visibility' is implied. The generated command line will 3757 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3758 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3759 // produce the same arguments. 3760 3761 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3762 !Args.hasArg(OPT_fvisibility))) 3763 Opts.IgnoreXCOFFVisibility = 1; 3764 3765 if (Args.hasArg(OPT_ftrapv)) { 3766 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3767 // Set the handler, if one is specified. 3768 Opts.OverflowHandler = 3769 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3770 } 3771 else if (Args.hasArg(OPT_fwrapv)) 3772 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3773 3774 Opts.MSCompatibilityVersion = 0; 3775 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3776 VersionTuple VT; 3777 if (VT.tryParse(A->getValue())) 3778 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3779 << A->getValue(); 3780 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3781 VT.getMinor().getValueOr(0) * 100000 + 3782 VT.getSubminor().getValueOr(0); 3783 } 3784 3785 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3786 // is specified, or -std is set to a conforming mode. 3787 // Trigraphs are disabled by default in c++1z onwards. 3788 // For z/OS, trigraphs are enabled by default (without regard to the above). 3789 Opts.Trigraphs = 3790 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3791 Opts.Trigraphs = 3792 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3793 3794 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3795 && Opts.OpenCLVersion == 200); 3796 3797 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3798 Opts.SYCLIsDevice || 3799 Args.hasArg(OPT_fconvergent_functions); 3800 3801 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3802 if (!Opts.NoBuiltin) 3803 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3804 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3805 ? 128 3806 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3807 if (Opts.FastRelaxedMath) 3808 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3809 llvm::sort(Opts.ModuleFeatures); 3810 3811 // -mrtd option 3812 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3813 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3814 Diags.Report(diag::err_drv_argument_not_allowed_with) 3815 << A->getSpelling() << "-fdefault-calling-conv"; 3816 else { 3817 if (T.getArch() != llvm::Triple::x86) 3818 Diags.Report(diag::err_drv_argument_not_allowed_with) 3819 << A->getSpelling() << T.getTriple(); 3820 else 3821 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3822 } 3823 } 3824 3825 // Check if -fopenmp is specified and set default version to 5.0. 3826 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3827 // Check if -fopenmp-simd is specified. 3828 bool IsSimdSpecified = 3829 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3830 /*Default=*/false); 3831 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3832 Opts.OpenMPUseTLS = 3833 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3834 Opts.OpenMPIsDevice = 3835 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3836 Opts.OpenMPIRBuilder = 3837 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3838 bool IsTargetSpecified = 3839 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3840 3841 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3842 3843 if (Opts.OpenMP || Opts.OpenMPSimd) { 3844 if (int Version = getLastArgIntValue( 3845 Args, OPT_fopenmp_version_EQ, 3846 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3847 Opts.OpenMP = Version; 3848 // Provide diagnostic when a given target is not expected to be an OpenMP 3849 // device or host. 3850 if (!Opts.OpenMPIsDevice) { 3851 switch (T.getArch()) { 3852 default: 3853 break; 3854 // Add unsupported host targets here: 3855 case llvm::Triple::nvptx: 3856 case llvm::Triple::nvptx64: 3857 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3858 break; 3859 } 3860 } 3861 } 3862 3863 // Set the flag to prevent the implementation from emitting device exception 3864 // handling code for those requiring so. 3865 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3866 Opts.OpenCLCPlusPlus) { 3867 Opts.Exceptions = 0; 3868 Opts.CXXExceptions = 0; 3869 } 3870 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3871 Opts.OpenMPCUDANumSMs = 3872 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3873 Opts.OpenMPCUDANumSMs, Diags); 3874 Opts.OpenMPCUDABlocksPerSM = 3875 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3876 Opts.OpenMPCUDABlocksPerSM, Diags); 3877 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3878 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3879 Opts.OpenMPCUDAReductionBufNum, Diags); 3880 } 3881 3882 // Get the OpenMP target triples if any. 3883 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3884 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3885 auto getArchPtrSize = [](const llvm::Triple &T) { 3886 if (T.isArch16Bit()) 3887 return Arch16Bit; 3888 if (T.isArch32Bit()) 3889 return Arch32Bit; 3890 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3891 return Arch64Bit; 3892 }; 3893 3894 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3895 llvm::Triple TT(A->getValue(i)); 3896 3897 if (TT.getArch() == llvm::Triple::UnknownArch || 3898 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3899 TT.getArch() == llvm::Triple::nvptx || 3900 TT.getArch() == llvm::Triple::nvptx64 || 3901 TT.getArch() == llvm::Triple::amdgcn || 3902 TT.getArch() == llvm::Triple::x86 || 3903 TT.getArch() == llvm::Triple::x86_64)) 3904 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3905 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3906 Diags.Report(diag::err_drv_incompatible_omp_arch) 3907 << A->getValue(i) << T.str(); 3908 else 3909 Opts.OMPTargetTriples.push_back(TT); 3910 } 3911 } 3912 3913 // Get OpenMP host file path if any and report if a non existent file is 3914 // found 3915 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3916 Opts.OMPHostIRFile = A->getValue(); 3917 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3918 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3919 << Opts.OMPHostIRFile; 3920 } 3921 3922 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3923 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3924 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3925 3926 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3927 Opts.OpenMPCUDAForceFullRuntime = 3928 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3929 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3930 3931 // FIXME: Eliminate this dependency. 3932 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3933 OptSize = getOptimizationLevelSize(Args); 3934 Opts.Optimize = Opt != 0; 3935 Opts.OptimizeSize = OptSize != 0; 3936 3937 // This is the __NO_INLINE__ define, which just depends on things like the 3938 // optimization level and -fno-inline, not actually whether the backend has 3939 // inlining enabled. 3940 Opts.NoInlineDefine = !Opts.Optimize; 3941 if (Arg *InlineArg = Args.getLastArg( 3942 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3943 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3944 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3945 Opts.NoInlineDefine = true; 3946 3947 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3948 StringRef Val = A->getValue(); 3949 if (Val == "fast") 3950 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3951 else if (Val == "on") 3952 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3953 else if (Val == "off") 3954 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3955 else if (Val == "fast-honor-pragmas") 3956 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3957 else 3958 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3959 } 3960 3961 // Parse -fsanitize= arguments. 3962 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3963 Diags, Opts.Sanitize); 3964 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3965 std::vector<std::string> systemIgnorelists = 3966 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3967 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3968 systemIgnorelists.begin(), 3969 systemIgnorelists.end()); 3970 3971 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3972 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3973 3974 StringRef Ver = A->getValue(); 3975 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3976 unsigned Major, Minor = 0; 3977 3978 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3979 // y or y.0 (4 <= y <= current version). 3980 if (!VerParts.first.startswith("0") && 3981 !VerParts.first.getAsInteger(10, Major) && 3982 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3983 (Major == 3 ? VerParts.second.size() == 1 && 3984 !VerParts.second.getAsInteger(10, Minor) 3985 : VerParts.first.size() == Ver.size() || 3986 VerParts.second == "0")) { 3987 // Got a valid version number. 3988 if (Major == 3 && Minor <= 8) 3989 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3990 else if (Major <= 4) 3991 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3992 else if (Major <= 6) 3993 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3994 else if (Major <= 7) 3995 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3996 else if (Major <= 9) 3997 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3998 else if (Major <= 11) 3999 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4000 else if (Major <= 12) 4001 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4002 } else if (Ver != "latest") { 4003 Diags.Report(diag::err_drv_invalid_value) 4004 << A->getAsString(Args) << A->getValue(); 4005 } 4006 } 4007 4008 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4009 StringRef SignScope = A->getValue(); 4010 4011 if (SignScope.equals_insensitive("none")) 4012 Opts.setSignReturnAddressScope( 4013 LangOptions::SignReturnAddressScopeKind::None); 4014 else if (SignScope.equals_insensitive("all")) 4015 Opts.setSignReturnAddressScope( 4016 LangOptions::SignReturnAddressScopeKind::All); 4017 else if (SignScope.equals_insensitive("non-leaf")) 4018 Opts.setSignReturnAddressScope( 4019 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4020 else 4021 Diags.Report(diag::err_drv_invalid_value) 4022 << A->getAsString(Args) << SignScope; 4023 4024 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4025 StringRef SignKey = A->getValue(); 4026 if (!SignScope.empty() && !SignKey.empty()) { 4027 if (SignKey.equals_insensitive("a_key")) 4028 Opts.setSignReturnAddressKey( 4029 LangOptions::SignReturnAddressKeyKind::AKey); 4030 else if (SignKey.equals_insensitive("b_key")) 4031 Opts.setSignReturnAddressKey( 4032 LangOptions::SignReturnAddressKeyKind::BKey); 4033 else 4034 Diags.Report(diag::err_drv_invalid_value) 4035 << A->getAsString(Args) << SignKey; 4036 } 4037 } 4038 } 4039 4040 // The value can be empty, which indicates the system default should be used. 4041 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4042 if (!CXXABI.empty()) { 4043 if (!TargetCXXABI::isABI(CXXABI)) { 4044 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4045 } else { 4046 auto Kind = TargetCXXABI::getKind(CXXABI); 4047 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4048 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4049 else 4050 Opts.CXXABI = Kind; 4051 } 4052 } 4053 4054 Opts.RelativeCXXABIVTables = 4055 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4056 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4057 TargetCXXABI::usesRelativeVTables(T)); 4058 4059 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4060 auto Split = StringRef(A).split('='); 4061 Opts.MacroPrefixMap.insert( 4062 {std::string(Split.first), std::string(Split.second)}); 4063 } 4064 4065 return Diags.getNumErrors() == NumErrorsBefore; 4066 } 4067 4068 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4069 switch (Action) { 4070 case frontend::ASTDeclList: 4071 case frontend::ASTDump: 4072 case frontend::ASTPrint: 4073 case frontend::ASTView: 4074 case frontend::EmitAssembly: 4075 case frontend::EmitBC: 4076 case frontend::EmitHTML: 4077 case frontend::EmitLLVM: 4078 case frontend::EmitLLVMOnly: 4079 case frontend::EmitCodeGenOnly: 4080 case frontend::EmitObj: 4081 case frontend::FixIt: 4082 case frontend::GenerateModule: 4083 case frontend::GenerateModuleInterface: 4084 case frontend::GenerateHeaderModule: 4085 case frontend::GeneratePCH: 4086 case frontend::GenerateInterfaceStubs: 4087 case frontend::ParseSyntaxOnly: 4088 case frontend::ModuleFileInfo: 4089 case frontend::VerifyPCH: 4090 case frontend::PluginAction: 4091 case frontend::RewriteObjC: 4092 case frontend::RewriteTest: 4093 case frontend::RunAnalysis: 4094 case frontend::TemplightDump: 4095 case frontend::MigrateSource: 4096 return false; 4097 4098 case frontend::DumpCompilerOptions: 4099 case frontend::DumpRawTokens: 4100 case frontend::DumpTokens: 4101 case frontend::InitOnly: 4102 case frontend::PrintPreamble: 4103 case frontend::PrintPreprocessedInput: 4104 case frontend::RewriteMacros: 4105 case frontend::RunPreprocessorOnly: 4106 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4107 return true; 4108 } 4109 llvm_unreachable("invalid frontend action"); 4110 } 4111 4112 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4113 SmallVectorImpl<const char *> &Args, 4114 CompilerInvocation::StringAllocator SA, 4115 const LangOptions &LangOpts, 4116 const FrontendOptions &FrontendOpts, 4117 const CodeGenOptions &CodeGenOpts) { 4118 PreprocessorOptions *PreprocessorOpts = &Opts; 4119 4120 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4121 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4122 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4123 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4124 MERGER, EXTRACTOR, TABLE_INDEX) \ 4125 GENERATE_OPTION_WITH_MARSHALLING( \ 4126 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4127 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4128 #include "clang/Driver/Options.inc" 4129 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4130 4131 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4132 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4133 4134 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4135 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4136 4137 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4138 GenerateArg(Args, OPT_preamble_bytes_EQ, 4139 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4140 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4141 SA); 4142 4143 for (const auto &M : Opts.Macros) { 4144 // Don't generate __CET__ macro definitions. They are implied by the 4145 // -fcf-protection option that is generated elsewhere. 4146 if (M.first == "__CET__=1" && !M.second && 4147 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4148 continue; 4149 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4150 !CodeGenOpts.CFProtectionBranch) 4151 continue; 4152 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4153 CodeGenOpts.CFProtectionBranch) 4154 continue; 4155 4156 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4157 } 4158 4159 for (const auto &I : Opts.Includes) { 4160 // Don't generate OpenCL includes. They are implied by other flags that are 4161 // generated elsewhere. 4162 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4163 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4164 I == "opencl-c.h")) 4165 continue; 4166 4167 GenerateArg(Args, OPT_include, I, SA); 4168 } 4169 4170 for (const auto &CI : Opts.ChainedIncludes) 4171 GenerateArg(Args, OPT_chain_include, CI, SA); 4172 4173 for (const auto &RF : Opts.RemappedFiles) 4174 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4175 4176 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4177 // generated elsewhere. 4178 } 4179 4180 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4181 DiagnosticsEngine &Diags, 4182 frontend::ActionKind Action, 4183 const FrontendOptions &FrontendOpts) { 4184 unsigned NumErrorsBefore = Diags.getNumErrors(); 4185 4186 PreprocessorOptions *PreprocessorOpts = &Opts; 4187 4188 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4189 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4190 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4191 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4192 MERGER, EXTRACTOR, TABLE_INDEX) \ 4193 PARSE_OPTION_WITH_MARSHALLING( \ 4194 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4195 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4196 #include "clang/Driver/Options.inc" 4197 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4198 4199 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4200 Args.hasArg(OPT_pch_through_hdrstop_use); 4201 4202 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4203 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4204 4205 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4206 StringRef Value(A->getValue()); 4207 size_t Comma = Value.find(','); 4208 unsigned Bytes = 0; 4209 unsigned EndOfLine = 0; 4210 4211 if (Comma == StringRef::npos || 4212 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4213 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4214 Diags.Report(diag::err_drv_preamble_format); 4215 else { 4216 Opts.PrecompiledPreambleBytes.first = Bytes; 4217 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4218 } 4219 } 4220 4221 // Add the __CET__ macro if a CFProtection option is set. 4222 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4223 StringRef Name = A->getValue(); 4224 if (Name == "branch") 4225 Opts.addMacroDef("__CET__=1"); 4226 else if (Name == "return") 4227 Opts.addMacroDef("__CET__=2"); 4228 else if (Name == "full") 4229 Opts.addMacroDef("__CET__=3"); 4230 } 4231 4232 // Add macros from the command line. 4233 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4234 if (A->getOption().matches(OPT_D)) 4235 Opts.addMacroDef(A->getValue()); 4236 else 4237 Opts.addMacroUndef(A->getValue()); 4238 } 4239 4240 // Add the ordered list of -includes. 4241 for (const auto *A : Args.filtered(OPT_include)) 4242 Opts.Includes.emplace_back(A->getValue()); 4243 4244 for (const auto *A : Args.filtered(OPT_chain_include)) 4245 Opts.ChainedIncludes.emplace_back(A->getValue()); 4246 4247 for (const auto *A : Args.filtered(OPT_remap_file)) { 4248 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4249 4250 if (Split.second.empty()) { 4251 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4252 continue; 4253 } 4254 4255 Opts.addRemappedFile(Split.first, Split.second); 4256 } 4257 4258 // Always avoid lexing editor placeholders when we're just running the 4259 // preprocessor as we never want to emit the 4260 // "editor placeholder in source file" error in PP only mode. 4261 if (isStrictlyPreprocessorAction(Action)) 4262 Opts.LexEditorPlaceholders = false; 4263 4264 return Diags.getNumErrors() == NumErrorsBefore; 4265 } 4266 4267 static void GeneratePreprocessorOutputArgs( 4268 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4269 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4270 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4271 4272 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4273 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4274 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4275 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4276 MERGER, EXTRACTOR, TABLE_INDEX) \ 4277 GENERATE_OPTION_WITH_MARSHALLING( \ 4278 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4279 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4280 #include "clang/Driver/Options.inc" 4281 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4282 4283 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4284 if (Generate_dM) 4285 GenerateArg(Args, OPT_dM, SA); 4286 if (!Generate_dM && Opts.ShowMacros) 4287 GenerateArg(Args, OPT_dD, SA); 4288 } 4289 4290 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4291 ArgList &Args, DiagnosticsEngine &Diags, 4292 frontend::ActionKind Action) { 4293 unsigned NumErrorsBefore = Diags.getNumErrors(); 4294 4295 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4296 4297 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4298 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4299 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4300 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4301 MERGER, EXTRACTOR, TABLE_INDEX) \ 4302 PARSE_OPTION_WITH_MARSHALLING( \ 4303 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4304 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4305 #include "clang/Driver/Options.inc" 4306 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4307 4308 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4309 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4310 4311 return Diags.getNumErrors() == NumErrorsBefore; 4312 } 4313 4314 static void GenerateTargetArgs(const TargetOptions &Opts, 4315 SmallVectorImpl<const char *> &Args, 4316 CompilerInvocation::StringAllocator SA) { 4317 const TargetOptions *TargetOpts = &Opts; 4318 #define TARGET_OPTION_WITH_MARSHALLING( \ 4319 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4320 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4321 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4322 MERGER, EXTRACTOR, TABLE_INDEX) \ 4323 GENERATE_OPTION_WITH_MARSHALLING( \ 4324 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4325 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4326 #include "clang/Driver/Options.inc" 4327 #undef TARGET_OPTION_WITH_MARSHALLING 4328 4329 if (!Opts.SDKVersion.empty()) 4330 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4331 SA); 4332 } 4333 4334 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4335 DiagnosticsEngine &Diags) { 4336 unsigned NumErrorsBefore = Diags.getNumErrors(); 4337 4338 TargetOptions *TargetOpts = &Opts; 4339 4340 #define TARGET_OPTION_WITH_MARSHALLING( \ 4341 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4342 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4343 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4344 MERGER, EXTRACTOR, TABLE_INDEX) \ 4345 PARSE_OPTION_WITH_MARSHALLING( \ 4346 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4347 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4348 #include "clang/Driver/Options.inc" 4349 #undef TARGET_OPTION_WITH_MARSHALLING 4350 4351 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4352 llvm::VersionTuple Version; 4353 if (Version.tryParse(A->getValue())) 4354 Diags.Report(diag::err_drv_invalid_value) 4355 << A->getAsString(Args) << A->getValue(); 4356 else 4357 Opts.SDKVersion = Version; 4358 } 4359 4360 return Diags.getNumErrors() == NumErrorsBefore; 4361 } 4362 4363 bool CompilerInvocation::CreateFromArgsImpl( 4364 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4365 DiagnosticsEngine &Diags, const char *Argv0) { 4366 unsigned NumErrorsBefore = Diags.getNumErrors(); 4367 4368 // Parse the arguments. 4369 const OptTable &Opts = getDriverOptTable(); 4370 const unsigned IncludedFlagsBitmask = options::CC1Option; 4371 unsigned MissingArgIndex, MissingArgCount; 4372 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4373 MissingArgCount, IncludedFlagsBitmask); 4374 LangOptions &LangOpts = *Res.getLangOpts(); 4375 4376 // Check for missing argument error. 4377 if (MissingArgCount) 4378 Diags.Report(diag::err_drv_missing_argument) 4379 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4380 4381 // Issue errors on unknown arguments. 4382 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4383 auto ArgString = A->getAsString(Args); 4384 std::string Nearest; 4385 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4386 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4387 else 4388 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4389 << ArgString << Nearest; 4390 } 4391 4392 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4393 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4394 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4395 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4396 /*DefaultDiagColor=*/false); 4397 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4398 // FIXME: We shouldn't have to pass the DashX option around here 4399 InputKind DashX = Res.getFrontendOpts().DashX; 4400 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4401 llvm::Triple T(Res.getTargetOpts().Triple); 4402 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4403 Res.getFileSystemOpts().WorkingDir); 4404 4405 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4406 Diags); 4407 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4408 LangOpts.ObjCExceptions = 1; 4409 4410 if (LangOpts.CUDA) { 4411 // During CUDA device-side compilation, the aux triple is the 4412 // triple used for host compilation. 4413 if (LangOpts.CUDAIsDevice) 4414 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4415 } 4416 4417 // Set the triple of the host for OpenMP device compile. 4418 if (LangOpts.OpenMPIsDevice) 4419 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4420 4421 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4422 Res.getFrontendOpts().OutputFile, LangOpts); 4423 4424 // FIXME: Override value name discarding when asan or msan is used because the 4425 // backend passes depend on the name of the alloca in order to print out 4426 // names. 4427 Res.getCodeGenOpts().DiscardValueNames &= 4428 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4429 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4430 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4431 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4432 4433 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4434 Res.getFrontendOpts().ProgramAction, 4435 Res.getFrontendOpts()); 4436 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4437 Res.getFrontendOpts().ProgramAction); 4438 4439 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4440 Res.getFrontendOpts().ProgramAction, 4441 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4442 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4443 Res.getDependencyOutputOpts().Targets.empty()) 4444 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4445 4446 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4447 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4448 !Res.getLangOpts()->Sanitize.empty()) { 4449 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4450 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4451 } 4452 4453 // Store the command-line for using in the CodeView backend. 4454 Res.getCodeGenOpts().Argv0 = Argv0; 4455 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4456 4457 FixupInvocation(Res, Diags, Args, DashX); 4458 4459 return Diags.getNumErrors() == NumErrorsBefore; 4460 } 4461 4462 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4463 ArrayRef<const char *> CommandLineArgs, 4464 DiagnosticsEngine &Diags, 4465 const char *Argv0) { 4466 CompilerInvocation DummyInvocation; 4467 4468 return RoundTrip( 4469 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4470 DiagnosticsEngine &Diags, const char *Argv0) { 4471 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4472 }, 4473 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4474 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4475 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4476 } 4477 4478 std::string CompilerInvocation::getModuleHash() const { 4479 // Note: For QoI reasons, the things we use as a hash here should all be 4480 // dumped via the -module-info flag. 4481 using llvm::hash_code; 4482 using llvm::hash_value; 4483 using llvm::hash_combine; 4484 using llvm::hash_combine_range; 4485 4486 // Start the signature with the compiler version. 4487 // FIXME: We'd rather use something more cryptographically sound than 4488 // CityHash, but this will do for now. 4489 hash_code code = hash_value(getClangFullRepositoryVersion()); 4490 4491 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4492 // and getClangFullRepositoryVersion() doesn't include git revision. 4493 code = hash_combine(code, serialization::VERSION_MAJOR, 4494 serialization::VERSION_MINOR); 4495 4496 // Extend the signature with the language options 4497 #define LANGOPT(Name, Bits, Default, Description) \ 4498 code = hash_combine(code, LangOpts->Name); 4499 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4500 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4501 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4502 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4503 #include "clang/Basic/LangOptions.def" 4504 4505 for (StringRef Feature : LangOpts->ModuleFeatures) 4506 code = hash_combine(code, Feature); 4507 4508 code = hash_combine(code, LangOpts->ObjCRuntime); 4509 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4510 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4511 4512 // Extend the signature with the target options. 4513 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4514 TargetOpts->TuneCPU, TargetOpts->ABI); 4515 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4516 code = hash_combine(code, FeatureAsWritten); 4517 4518 // Extend the signature with preprocessor options. 4519 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4520 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4521 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4522 4523 for (const auto &I : getPreprocessorOpts().Macros) { 4524 // If we're supposed to ignore this macro for the purposes of modules, 4525 // don't put it into the hash. 4526 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4527 // Check whether we're ignoring this macro. 4528 StringRef MacroDef = I.first; 4529 if (hsOpts.ModulesIgnoreMacros.count( 4530 llvm::CachedHashString(MacroDef.split('=').first))) 4531 continue; 4532 } 4533 4534 code = hash_combine(code, I.first, I.second); 4535 } 4536 4537 // Extend the signature with the sysroot and other header search options. 4538 code = hash_combine(code, hsOpts.Sysroot, 4539 hsOpts.ModuleFormat, 4540 hsOpts.UseDebugInfo, 4541 hsOpts.UseBuiltinIncludes, 4542 hsOpts.UseStandardSystemIncludes, 4543 hsOpts.UseStandardCXXIncludes, 4544 hsOpts.UseLibcxx, 4545 hsOpts.ModulesValidateDiagnosticOptions); 4546 code = hash_combine(code, hsOpts.ResourceDir); 4547 4548 if (hsOpts.ModulesStrictContextHash) { 4549 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4550 hsOpts.SystemHeaderPrefixes.end()); 4551 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4552 hsOpts.UserEntries.end()); 4553 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4554 hsOpts.UserEntries.size(), UEC); 4555 4556 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4557 #define DIAGOPT(Name, Bits, Default) \ 4558 code = hash_combine(code, diagOpts.Name); 4559 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4560 code = hash_combine(code, diagOpts.get##Name()); 4561 #include "clang/Basic/DiagnosticOptions.def" 4562 #undef DIAGOPT 4563 #undef ENUM_DIAGOPT 4564 } 4565 4566 // Extend the signature with the user build path. 4567 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4568 4569 // Extend the signature with the module file extensions. 4570 const FrontendOptions &frontendOpts = getFrontendOpts(); 4571 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4572 code = ext->hashExtension(code); 4573 } 4574 4575 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4576 // affects the debug info in the PCM. 4577 if (getCodeGenOpts().DebugTypeExtRefs) 4578 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4579 code = hash_combine(code, KeyValue.first, KeyValue.second); 4580 4581 // Extend the signature with the enabled sanitizers, if at least one is 4582 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4583 SanitizerSet SanHash = LangOpts->Sanitize; 4584 SanHash.clear(getPPTransparentSanitizers()); 4585 if (!SanHash.empty()) 4586 code = hash_combine(code, SanHash.Mask); 4587 4588 return toString(llvm::APInt(64, code), 36, /*Signed=*/false); 4589 } 4590 4591 void CompilerInvocation::generateCC1CommandLine( 4592 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4593 llvm::Triple T(TargetOpts->Triple); 4594 4595 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4596 GenerateMigratorArgs(MigratorOpts, Args, SA); 4597 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4598 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4599 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4600 GenerateTargetArgs(*TargetOpts, Args, SA); 4601 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4602 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4603 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4604 &*LangOpts); 4605 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4606 CodeGenOpts); 4607 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4608 FrontendOpts.ProgramAction); 4609 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4610 } 4611 4612 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4613 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4614 DiagnosticsEngine &Diags) { 4615 return createVFSFromCompilerInvocation(CI, Diags, 4616 llvm::vfs::getRealFileSystem()); 4617 } 4618 4619 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4620 clang::createVFSFromCompilerInvocation( 4621 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4622 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4623 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4624 return BaseFS; 4625 4626 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4627 // earlier vfs files are on the bottom 4628 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4629 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4630 Result->getBufferForFile(File); 4631 if (!Buffer) { 4632 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4633 continue; 4634 } 4635 4636 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4637 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4638 /*DiagContext*/ nullptr, Result); 4639 if (!FS) { 4640 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4641 continue; 4642 } 4643 4644 Result = FS; 4645 } 4646 return Result; 4647 } 4648