1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <ctime> 98 #include <fstream> 99 #include <limits> 100 #include <memory> 101 #include <string> 102 #include <tuple> 103 #include <type_traits> 104 #include <utility> 105 #include <vector> 106 107 using namespace clang; 108 using namespace driver; 109 using namespace options; 110 using namespace llvm::opt; 111 112 //===----------------------------------------------------------------------===// 113 // Helpers. 114 //===----------------------------------------------------------------------===// 115 116 // Parse misexpect tolerance argument value. 117 // Valid option values are integers in the range [0, 100) 118 inline Expected<Optional<uint32_t>> parseToleranceOption(StringRef Arg) { 119 uint32_t Val; 120 if (Arg.getAsInteger(10, Val)) 121 return llvm::createStringError(llvm::inconvertibleErrorCode(), 122 "Not an integer: %s", Arg.data()); 123 return Val; 124 } 125 126 //===----------------------------------------------------------------------===// 127 // Initialization. 128 //===----------------------------------------------------------------------===// 129 130 CompilerInvocationRefBase::CompilerInvocationRefBase() 131 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 132 DiagnosticOpts(new DiagnosticOptions()), 133 HeaderSearchOpts(new HeaderSearchOptions()), 134 PreprocessorOpts(new PreprocessorOptions()), 135 AnalyzerOpts(new AnalyzerOptions()) {} 136 137 CompilerInvocationRefBase::CompilerInvocationRefBase( 138 const CompilerInvocationRefBase &X) 139 : LangOpts(new LangOptions(*X.getLangOpts())), 140 TargetOpts(new TargetOptions(X.getTargetOpts())), 141 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 142 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 143 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 144 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 145 146 CompilerInvocationRefBase::CompilerInvocationRefBase( 147 CompilerInvocationRefBase &&X) = default; 148 149 CompilerInvocationRefBase & 150 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 151 LangOpts.swap(X.LangOpts); 152 TargetOpts.swap(X.TargetOpts); 153 DiagnosticOpts.swap(X.DiagnosticOpts); 154 HeaderSearchOpts.swap(X.HeaderSearchOpts); 155 PreprocessorOpts.swap(X.PreprocessorOpts); 156 AnalyzerOpts.swap(X.AnalyzerOpts); 157 return *this; 158 } 159 160 CompilerInvocationRefBase & 161 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 162 163 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 164 165 //===----------------------------------------------------------------------===// 166 // Normalizers 167 //===----------------------------------------------------------------------===// 168 169 #define SIMPLE_ENUM_VALUE_TABLE 170 #include "clang/Driver/Options.inc" 171 #undef SIMPLE_ENUM_VALUE_TABLE 172 173 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 174 unsigned TableIndex, 175 const ArgList &Args, 176 DiagnosticsEngine &Diags) { 177 if (Args.hasArg(Opt)) 178 return true; 179 return None; 180 } 181 182 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 183 const ArgList &Args, 184 DiagnosticsEngine &) { 185 if (Args.hasArg(Opt)) 186 return false; 187 return None; 188 } 189 190 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 191 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 192 /// unnecessary template instantiations and just ignore it with a variadic 193 /// argument. 194 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 195 const char *Spelling, 196 CompilerInvocation::StringAllocator, 197 Option::OptionClass, unsigned, /*T*/...) { 198 Args.push_back(Spelling); 199 } 200 201 template <typename T> static constexpr bool is_uint64_t_convertible() { 202 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 203 } 204 205 template <typename T, 206 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 207 static auto makeFlagToValueNormalizer(T Value) { 208 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 209 DiagnosticsEngine &) -> Optional<T> { 210 if (Args.hasArg(Opt)) 211 return Value; 212 return None; 213 }; 214 } 215 216 template <typename T, 217 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 218 static auto makeFlagToValueNormalizer(T Value) { 219 return makeFlagToValueNormalizer(uint64_t(Value)); 220 } 221 222 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 223 OptSpecifier OtherOpt) { 224 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 225 const ArgList &Args, 226 DiagnosticsEngine &) -> Optional<bool> { 227 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 228 return A->getOption().matches(Opt) ? Value : OtherValue; 229 } 230 return None; 231 }; 232 } 233 234 static auto makeBooleanOptionDenormalizer(bool Value) { 235 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 236 CompilerInvocation::StringAllocator, Option::OptionClass, 237 unsigned, bool KeyPath) { 238 if (KeyPath == Value) 239 Args.push_back(Spelling); 240 }; 241 } 242 243 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 244 const char *Spelling, 245 CompilerInvocation::StringAllocator SA, 246 Option::OptionClass OptClass, unsigned, 247 const Twine &Value) { 248 switch (OptClass) { 249 case Option::SeparateClass: 250 case Option::JoinedOrSeparateClass: 251 case Option::JoinedAndSeparateClass: 252 Args.push_back(Spelling); 253 Args.push_back(SA(Value)); 254 break; 255 case Option::JoinedClass: 256 case Option::CommaJoinedClass: 257 Args.push_back(SA(Twine(Spelling) + Value)); 258 break; 259 default: 260 llvm_unreachable("Cannot denormalize an option with option class " 261 "incompatible with string denormalization."); 262 } 263 } 264 265 template <typename T> 266 static void 267 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 268 CompilerInvocation::StringAllocator SA, 269 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 270 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 271 } 272 273 static Optional<SimpleEnumValue> 274 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 275 for (int I = 0, E = Table.Size; I != E; ++I) 276 if (Name == Table.Table[I].Name) 277 return Table.Table[I]; 278 279 return None; 280 } 281 282 static Optional<SimpleEnumValue> 283 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 284 for (int I = 0, E = Table.Size; I != E; ++I) 285 if (Value == Table.Table[I].Value) 286 return Table.Table[I]; 287 288 return None; 289 } 290 291 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 292 unsigned TableIndex, 293 const ArgList &Args, 294 DiagnosticsEngine &Diags) { 295 assert(TableIndex < SimpleEnumValueTablesSize); 296 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 297 298 auto *Arg = Args.getLastArg(Opt); 299 if (!Arg) 300 return None; 301 302 StringRef ArgValue = Arg->getValue(); 303 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 304 return MaybeEnumVal->Value; 305 306 Diags.Report(diag::err_drv_invalid_value) 307 << Arg->getAsString(Args) << ArgValue; 308 return None; 309 } 310 311 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, unsigned Value) { 316 assert(TableIndex < SimpleEnumValueTablesSize); 317 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 318 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 319 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 320 MaybeEnumVal->Name); 321 } else { 322 llvm_unreachable("The simple enum value was not correctly defined in " 323 "the tablegen option description"); 324 } 325 } 326 327 template <typename T> 328 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 329 const char *Spelling, 330 CompilerInvocation::StringAllocator SA, 331 Option::OptionClass OptClass, 332 unsigned TableIndex, T Value) { 333 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 334 static_cast<unsigned>(Value)); 335 } 336 337 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 338 const ArgList &Args, 339 DiagnosticsEngine &Diags) { 340 auto *Arg = Args.getLastArg(Opt); 341 if (!Arg) 342 return None; 343 return std::string(Arg->getValue()); 344 } 345 346 template <typename IntTy> 347 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 348 const ArgList &Args, 349 DiagnosticsEngine &Diags) { 350 auto *Arg = Args.getLastArg(Opt); 351 if (!Arg) 352 return None; 353 IntTy Res; 354 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 355 Diags.Report(diag::err_drv_invalid_int_value) 356 << Arg->getAsString(Args) << Arg->getValue(); 357 return None; 358 } 359 return Res; 360 } 361 362 static Optional<std::vector<std::string>> 363 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 364 DiagnosticsEngine &) { 365 return Args.getAllArgValues(Opt); 366 } 367 368 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 369 const char *Spelling, 370 CompilerInvocation::StringAllocator SA, 371 Option::OptionClass OptClass, 372 unsigned TableIndex, 373 const std::vector<std::string> &Values) { 374 switch (OptClass) { 375 case Option::CommaJoinedClass: { 376 std::string CommaJoinedValue; 377 if (!Values.empty()) { 378 CommaJoinedValue.append(Values.front()); 379 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 380 CommaJoinedValue.append(","); 381 CommaJoinedValue.append(Value); 382 } 383 } 384 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 385 TableIndex, CommaJoinedValue); 386 break; 387 } 388 case Option::JoinedClass: 389 case Option::SeparateClass: 390 case Option::JoinedOrSeparateClass: 391 for (const std::string &Value : Values) 392 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 393 break; 394 default: 395 llvm_unreachable("Cannot denormalize an option with option class " 396 "incompatible with string vector denormalization."); 397 } 398 } 399 400 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 401 const ArgList &Args, 402 DiagnosticsEngine &Diags) { 403 auto *Arg = Args.getLastArg(Opt); 404 if (!Arg) 405 return None; 406 return llvm::Triple::normalize(Arg->getValue()); 407 } 408 409 template <typename T, typename U> 410 static T mergeForwardValue(T KeyPath, U Value) { 411 return static_cast<T>(Value); 412 } 413 414 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 415 return KeyPath | Value; 416 } 417 418 template <typename T> static T extractForwardValue(T KeyPath) { 419 return KeyPath; 420 } 421 422 template <typename T, typename U, U Value> 423 static T extractMaskValue(T KeyPath) { 424 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 425 } 426 427 #define PARSE_OPTION_WITH_MARSHALLING( \ 428 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 429 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 430 if ((FLAGS)&options::CC1Option) { \ 431 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 432 if (IMPLIED_CHECK) \ 433 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 434 if (SHOULD_PARSE) \ 435 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 436 KEYPATH = \ 437 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 438 } 439 440 // Capture the extracted value as a lambda argument to avoid potential issues 441 // with lifetime extension of the reference. 442 #define GENERATE_OPTION_WITH_MARSHALLING( \ 443 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 444 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 445 TABLE_INDEX) \ 446 if ((FLAGS)&options::CC1Option) { \ 447 [&](const auto &Extracted) { \ 448 if (ALWAYS_EMIT || \ 449 (Extracted != \ 450 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 451 : (DEFAULT_VALUE)))) \ 452 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 453 TABLE_INDEX, Extracted); \ 454 }(EXTRACTOR(KEYPATH)); \ 455 } 456 457 static StringRef GetInputKindName(InputKind IK); 458 459 static bool FixupInvocation(CompilerInvocation &Invocation, 460 DiagnosticsEngine &Diags, const ArgList &Args, 461 InputKind IK) { 462 unsigned NumErrorsBefore = Diags.getNumErrors(); 463 464 LangOptions &LangOpts = *Invocation.getLangOpts(); 465 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 466 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 467 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 468 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 469 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 470 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 471 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 472 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 473 if (FrontendOpts.ShowStats) 474 CodeGenOpts.ClearASTBeforeBackend = false; 475 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 476 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 477 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 478 LangOpts.CurrentModule = LangOpts.ModuleName; 479 480 llvm::Triple T(TargetOpts.Triple); 481 llvm::Triple::ArchType Arch = T.getArch(); 482 483 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 484 485 if (LangOpts.getExceptionHandling() != 486 LangOptions::ExceptionHandlingKind::None && 487 T.isWindowsMSVCEnvironment()) 488 Diags.Report(diag::err_fe_invalid_exception_model) 489 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 490 491 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 492 Diags.Report(diag::warn_c_kext); 493 494 if (LangOpts.NewAlignOverride && 495 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 496 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 497 Diags.Report(diag::err_fe_invalid_alignment) 498 << A->getAsString(Args) << A->getValue(); 499 LangOpts.NewAlignOverride = 0; 500 } 501 502 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 503 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 504 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 505 << "-fsycl-is-host"; 506 507 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 508 Diags.Report(diag::err_drv_argument_not_allowed_with) 509 << "-fgnu89-inline" << GetInputKindName(IK); 510 511 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 512 Diags.Report(diag::err_drv_argument_not_allowed_with) 513 << "-hlsl-entry" << GetInputKindName(IK); 514 515 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 516 Diags.Report(diag::warn_ignored_hip_only_option) 517 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 518 519 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 520 Diags.Report(diag::warn_ignored_hip_only_option) 521 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 522 523 // When these options are used, the compiler is allowed to apply 524 // optimizations that may affect the final result. For example 525 // (x+y)+z is transformed to x+(y+z) but may not give the same 526 // final result; it's not value safe. 527 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 528 // or NaN. Final result may then differ. An error is issued when the eval 529 // method is set with one of these options. 530 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 531 if (LangOpts.ApproxFunc) 532 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 533 if (LangOpts.AllowFPReassoc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 535 if (LangOpts.AllowRecip) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 537 } 538 539 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 540 // This option should be deprecated for CL > 1.0 because 541 // this option was added for compatibility with OpenCL 1.0. 542 if (Args.getLastArg(OPT_cl_strict_aliasing) && 543 (LangOpts.getOpenCLCompatibleVersion() > 100)) 544 Diags.Report(diag::warn_option_invalid_ocl_version) 545 << LangOpts.getOpenCLVersionString() 546 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 547 548 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 549 auto DefaultCC = LangOpts.getDefaultCallingConv(); 550 551 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 552 DefaultCC == LangOptions::DCC_StdCall) && 553 Arch != llvm::Triple::x86; 554 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 555 DefaultCC == LangOptions::DCC_RegCall) && 556 !T.isX86(); 557 if (emitError) 558 Diags.Report(diag::err_drv_argument_not_allowed_with) 559 << A->getSpelling() << T.getTriple(); 560 } 561 562 return Diags.getNumErrors() == NumErrorsBefore; 563 } 564 565 //===----------------------------------------------------------------------===// 566 // Deserialization (from args) 567 //===----------------------------------------------------------------------===// 568 569 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 570 DiagnosticsEngine &Diags) { 571 unsigned DefaultOpt = llvm::CodeGenOpt::None; 572 if ((IK.getLanguage() == Language::OpenCL || 573 IK.getLanguage() == Language::OpenCLCXX) && 574 !Args.hasArg(OPT_cl_opt_disable)) 575 DefaultOpt = llvm::CodeGenOpt::Default; 576 577 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 578 if (A->getOption().matches(options::OPT_O0)) 579 return llvm::CodeGenOpt::None; 580 581 if (A->getOption().matches(options::OPT_Ofast)) 582 return llvm::CodeGenOpt::Aggressive; 583 584 assert(A->getOption().matches(options::OPT_O)); 585 586 StringRef S(A->getValue()); 587 if (S == "s" || S == "z") 588 return llvm::CodeGenOpt::Default; 589 590 if (S == "g") 591 return llvm::CodeGenOpt::Less; 592 593 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 594 } 595 596 return DefaultOpt; 597 } 598 599 static unsigned getOptimizationLevelSize(ArgList &Args) { 600 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 601 if (A->getOption().matches(options::OPT_O)) { 602 switch (A->getValue()[0]) { 603 default: 604 return 0; 605 case 's': 606 return 1; 607 case 'z': 608 return 2; 609 } 610 } 611 } 612 return 0; 613 } 614 615 static void GenerateArg(SmallVectorImpl<const char *> &Args, 616 llvm::opt::OptSpecifier OptSpecifier, 617 CompilerInvocation::StringAllocator SA) { 618 Option Opt = getDriverOptTable().getOption(OptSpecifier); 619 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 620 Option::OptionClass::FlagClass, 0); 621 } 622 623 static void GenerateArg(SmallVectorImpl<const char *> &Args, 624 llvm::opt::OptSpecifier OptSpecifier, 625 const Twine &Value, 626 CompilerInvocation::StringAllocator SA) { 627 Option Opt = getDriverOptTable().getOption(OptSpecifier); 628 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 629 Opt.getKind(), 0, Value); 630 } 631 632 // Parse command line arguments into CompilerInvocation. 633 using ParseFn = 634 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 635 DiagnosticsEngine &, const char *)>; 636 637 // Generate command line arguments from CompilerInvocation. 638 using GenerateFn = llvm::function_ref<void( 639 CompilerInvocation &, SmallVectorImpl<const char *> &, 640 CompilerInvocation::StringAllocator)>; 641 642 // May perform round-trip of command line arguments. By default, the round-trip 643 // is enabled in assert builds. This can be overwritten at run-time via the 644 // "-round-trip-args" and "-no-round-trip-args" command line flags. 645 // During round-trip, the command line arguments are parsed into a dummy 646 // instance of CompilerInvocation which is used to generate the command line 647 // arguments again. The real CompilerInvocation instance is then created by 648 // parsing the generated arguments, not the original ones. 649 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 650 CompilerInvocation &RealInvocation, 651 CompilerInvocation &DummyInvocation, 652 ArrayRef<const char *> CommandLineArgs, 653 DiagnosticsEngine &Diags, const char *Argv0) { 654 #ifndef NDEBUG 655 bool DoRoundTripDefault = true; 656 #else 657 bool DoRoundTripDefault = false; 658 #endif 659 660 bool DoRoundTrip = DoRoundTripDefault; 661 for (const auto *Arg : CommandLineArgs) { 662 if (Arg == StringRef("-round-trip-args")) 663 DoRoundTrip = true; 664 if (Arg == StringRef("-no-round-trip-args")) 665 DoRoundTrip = false; 666 } 667 668 // If round-trip was not requested, simply run the parser with the real 669 // invocation diagnostics. 670 if (!DoRoundTrip) 671 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 672 673 // Serializes quoted (and potentially escaped) arguments. 674 auto SerializeArgs = [](ArrayRef<const char *> Args) { 675 std::string Buffer; 676 llvm::raw_string_ostream OS(Buffer); 677 for (const char *Arg : Args) { 678 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 679 OS << ' '; 680 } 681 OS.flush(); 682 return Buffer; 683 }; 684 685 // Setup a dummy DiagnosticsEngine. 686 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 687 DummyDiags.setClient(new TextDiagnosticBuffer()); 688 689 // Run the first parse on the original arguments with the dummy invocation and 690 // diagnostics. 691 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 692 DummyDiags.getNumWarnings() != 0) { 693 // If the first parse did not succeed, it must be user mistake (invalid 694 // command line arguments). We won't be able to generate arguments that 695 // would reproduce the same result. Let's fail again with the real 696 // invocation and diagnostics, so all side-effects of parsing are visible. 697 unsigned NumWarningsBefore = Diags.getNumWarnings(); 698 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 699 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 700 return Success; 701 702 // Parse with original options and diagnostics succeeded even though it 703 // shouldn't have. Something is off. 704 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 705 Diags.Report(diag::note_cc1_round_trip_original) 706 << SerializeArgs(CommandLineArgs); 707 return false; 708 } 709 710 // Setup string allocator. 711 llvm::BumpPtrAllocator Alloc; 712 llvm::StringSaver StringPool(Alloc); 713 auto SA = [&StringPool](const Twine &Arg) { 714 return StringPool.save(Arg).data(); 715 }; 716 717 // Generate arguments from the dummy invocation. If Generate is the 718 // inverse of Parse, the newly generated arguments must have the same 719 // semantics as the original. 720 SmallVector<const char *> GeneratedArgs1; 721 Generate(DummyInvocation, GeneratedArgs1, SA); 722 723 // Run the second parse, now on the generated arguments, and with the real 724 // invocation and diagnostics. The result is what we will end up using for the 725 // rest of compilation, so if Generate is not inverse of Parse, something down 726 // the line will break. 727 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 728 729 // The first parse on original arguments succeeded, but second parse of 730 // generated arguments failed. Something must be wrong with the generator. 731 if (!Success2) { 732 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 733 Diags.Report(diag::note_cc1_round_trip_generated) 734 << 1 << SerializeArgs(GeneratedArgs1); 735 return false; 736 } 737 738 // Generate arguments again, this time from the options we will end up using 739 // for the rest of the compilation. 740 SmallVector<const char *> GeneratedArgs2; 741 Generate(RealInvocation, GeneratedArgs2, SA); 742 743 // Compares two lists of generated arguments. 744 auto Equal = [](const ArrayRef<const char *> A, 745 const ArrayRef<const char *> B) { 746 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 747 [](const char *AElem, const char *BElem) { 748 return StringRef(AElem) == StringRef(BElem); 749 }); 750 }; 751 752 // If we generated different arguments from what we assume are two 753 // semantically equivalent CompilerInvocations, the Generate function may 754 // be non-deterministic. 755 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 756 Diags.Report(diag::err_cc1_round_trip_mismatch); 757 Diags.Report(diag::note_cc1_round_trip_generated) 758 << 1 << SerializeArgs(GeneratedArgs1); 759 Diags.Report(diag::note_cc1_round_trip_generated) 760 << 2 << SerializeArgs(GeneratedArgs2); 761 return false; 762 } 763 764 Diags.Report(diag::remark_cc1_round_trip_generated) 765 << 1 << SerializeArgs(GeneratedArgs1); 766 Diags.Report(diag::remark_cc1_round_trip_generated) 767 << 2 << SerializeArgs(GeneratedArgs2); 768 769 return Success2; 770 } 771 772 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 773 OptSpecifier GroupWithValue, 774 std::vector<std::string> &Diagnostics) { 775 for (auto *A : Args.filtered(Group)) { 776 if (A->getOption().getKind() == Option::FlagClass) { 777 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 778 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 779 Diagnostics.push_back( 780 std::string(A->getOption().getName().drop_front(1))); 781 } else if (A->getOption().matches(GroupWithValue)) { 782 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 783 // group. Add only the group name to the diagnostics. 784 Diagnostics.push_back( 785 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 786 } else { 787 // Otherwise, add its value (for OPT_W_Joined and similar). 788 Diagnostics.push_back(A->getValue()); 789 } 790 } 791 } 792 793 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 794 // it won't verify the input. 795 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 796 DiagnosticsEngine *Diags); 797 798 static void getAllNoBuiltinFuncValues(ArgList &Args, 799 std::vector<std::string> &Funcs) { 800 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 801 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 802 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 803 } 804 805 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 806 SmallVectorImpl<const char *> &Args, 807 CompilerInvocation::StringAllocator SA) { 808 const AnalyzerOptions *AnalyzerOpts = &Opts; 809 810 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 811 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 812 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 813 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 814 MERGER, EXTRACTOR, TABLE_INDEX) \ 815 GENERATE_OPTION_WITH_MARSHALLING( \ 816 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 817 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 818 #include "clang/Driver/Options.inc" 819 #undef ANALYZER_OPTION_WITH_MARSHALLING 820 821 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 822 switch (Opts.AnalysisConstraintsOpt) { 823 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 824 case NAME##Model: \ 825 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 826 break; 827 #include "clang/StaticAnalyzer/Core/Analyses.def" 828 default: 829 llvm_unreachable("Tried to generate unknown analysis constraint."); 830 } 831 } 832 833 if (Opts.AnalysisDiagOpt != PD_HTML) { 834 switch (Opts.AnalysisDiagOpt) { 835 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 836 case PD_##NAME: \ 837 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 838 break; 839 #include "clang/StaticAnalyzer/Core/Analyses.def" 840 default: 841 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 842 } 843 } 844 845 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 846 switch (Opts.AnalysisPurgeOpt) { 847 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 848 case NAME: \ 849 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 850 break; 851 #include "clang/StaticAnalyzer/Core/Analyses.def" 852 default: 853 llvm_unreachable("Tried to generate unknown analysis purge mode."); 854 } 855 } 856 857 if (Opts.InliningMode != NoRedundancy) { 858 switch (Opts.InliningMode) { 859 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 860 case NAME: \ 861 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 862 break; 863 #include "clang/StaticAnalyzer/Core/Analyses.def" 864 default: 865 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 866 } 867 } 868 869 for (const auto &CP : Opts.CheckersAndPackages) { 870 OptSpecifier Opt = 871 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 872 GenerateArg(Args, Opt, CP.first, SA); 873 } 874 875 AnalyzerOptions ConfigOpts; 876 parseAnalyzerConfigs(ConfigOpts, nullptr); 877 878 for (const auto &C : Opts.Config) { 879 // Don't generate anything that came from parseAnalyzerConfigs. It would be 880 // redundant and may not be valid on the command line. 881 auto Entry = ConfigOpts.Config.find(C.getKey()); 882 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 883 continue; 884 885 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 886 } 887 888 // Nothing to generate for FullCompilerInvocation. 889 } 890 891 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 892 DiagnosticsEngine &Diags) { 893 unsigned NumErrorsBefore = Diags.getNumErrors(); 894 895 AnalyzerOptions *AnalyzerOpts = &Opts; 896 897 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 898 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 899 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 900 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 901 MERGER, EXTRACTOR, TABLE_INDEX) \ 902 PARSE_OPTION_WITH_MARSHALLING( \ 903 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 904 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 905 #include "clang/Driver/Options.inc" 906 #undef ANALYZER_OPTION_WITH_MARSHALLING 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 #ifndef LLVM_WITH_Z3 920 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 921 Diags.Report(diag::err_analyzer_not_built_with_z3); 922 } 923 #endif // LLVM_WITH_Z3 924 Opts.AnalysisConstraintsOpt = Value; 925 } 926 } 927 928 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 929 StringRef Name = A->getValue(); 930 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 931 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 932 .Case(CMDFLAG, PD_##NAME) 933 #include "clang/StaticAnalyzer/Core/Analyses.def" 934 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 935 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 936 Diags.Report(diag::err_drv_invalid_value) 937 << A->getAsString(Args) << Name; 938 } else { 939 Opts.AnalysisDiagOpt = Value; 940 } 941 } 942 943 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 944 StringRef Name = A->getValue(); 945 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 946 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 947 .Case(CMDFLAG, NAME) 948 #include "clang/StaticAnalyzer/Core/Analyses.def" 949 .Default(NumPurgeModes); 950 if (Value == NumPurgeModes) { 951 Diags.Report(diag::err_drv_invalid_value) 952 << A->getAsString(Args) << Name; 953 } else { 954 Opts.AnalysisPurgeOpt = Value; 955 } 956 } 957 958 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 959 StringRef Name = A->getValue(); 960 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 961 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 962 .Case(CMDFLAG, NAME) 963 #include "clang/StaticAnalyzer/Core/Analyses.def" 964 .Default(NumInliningModes); 965 if (Value == NumInliningModes) { 966 Diags.Report(diag::err_drv_invalid_value) 967 << A->getAsString(Args) << Name; 968 } else { 969 Opts.InliningMode = Value; 970 } 971 } 972 973 Opts.CheckersAndPackages.clear(); 974 for (const Arg *A : 975 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 976 A->claim(); 977 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 978 // We can have a list of comma separated checker names, e.g: 979 // '-analyzer-checker=cocoa,unix' 980 StringRef CheckerAndPackageList = A->getValue(); 981 SmallVector<StringRef, 16> CheckersAndPackages; 982 CheckerAndPackageList.split(CheckersAndPackages, ","); 983 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 984 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 985 IsEnabled); 986 } 987 988 // Go through the analyzer configuration options. 989 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 990 991 // We can have a list of comma separated config names, e.g: 992 // '-analyzer-config key1=val1,key2=val2' 993 StringRef configList = A->getValue(); 994 SmallVector<StringRef, 4> configVals; 995 configList.split(configVals, ","); 996 for (const auto &configVal : configVals) { 997 StringRef key, val; 998 std::tie(key, val) = configVal.split("="); 999 if (val.empty()) { 1000 Diags.Report(SourceLocation(), 1001 diag::err_analyzer_config_no_value) << configVal; 1002 break; 1003 } 1004 if (val.contains('=')) { 1005 Diags.Report(SourceLocation(), 1006 diag::err_analyzer_config_multiple_values) 1007 << configVal; 1008 break; 1009 } 1010 1011 // TODO: Check checker options too, possibly in CheckerRegistry. 1012 // Leave unknown non-checker configs unclaimed. 1013 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1014 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1015 Diags.Report(diag::err_analyzer_config_unknown) << key; 1016 continue; 1017 } 1018 1019 A->claim(); 1020 Opts.Config[key] = std::string(val); 1021 1022 // FIXME: Remove this hunk after clang-17 released. 1023 constexpr auto SingleFAM = 1024 "consider-single-element-arrays-as-flexible-array-members"; 1025 if (key == SingleFAM) { 1026 Diags.Report(diag::warn_analyzer_deprecated_option_with_alternative) 1027 << SingleFAM << "clang-17" 1028 << "-fstrict-flex-arrays=<N>"; 1029 } 1030 } 1031 } 1032 1033 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1034 parseAnalyzerConfigs(Opts, &Diags); 1035 else 1036 parseAnalyzerConfigs(Opts, nullptr); 1037 1038 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1039 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1040 if (i != 0) 1041 os << " "; 1042 os << Args.getArgString(i); 1043 } 1044 os.flush(); 1045 1046 return Diags.getNumErrors() == NumErrorsBefore; 1047 } 1048 1049 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1050 StringRef OptionName, StringRef DefaultVal) { 1051 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1052 } 1053 1054 static void initOption(AnalyzerOptions::ConfigTable &Config, 1055 DiagnosticsEngine *Diags, 1056 StringRef &OptionField, StringRef Name, 1057 StringRef DefaultVal) { 1058 // String options may be known to invalid (e.g. if the expected string is a 1059 // file name, but the file does not exist), those will have to be checked in 1060 // parseConfigs. 1061 OptionField = getStringOption(Config, Name, DefaultVal); 1062 } 1063 1064 static void initOption(AnalyzerOptions::ConfigTable &Config, 1065 DiagnosticsEngine *Diags, 1066 bool &OptionField, StringRef Name, bool DefaultVal) { 1067 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1068 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1069 .Case("true", true) 1070 .Case("false", false) 1071 .Default(None); 1072 1073 if (!PossiblyInvalidVal) { 1074 if (Diags) 1075 Diags->Report(diag::err_analyzer_config_invalid_input) 1076 << Name << "a boolean"; 1077 else 1078 OptionField = DefaultVal; 1079 } else 1080 OptionField = *PossiblyInvalidVal; 1081 } 1082 1083 static void initOption(AnalyzerOptions::ConfigTable &Config, 1084 DiagnosticsEngine *Diags, 1085 unsigned &OptionField, StringRef Name, 1086 unsigned DefaultVal) { 1087 1088 OptionField = DefaultVal; 1089 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1090 .getAsInteger(0, OptionField); 1091 if (Diags && HasFailed) 1092 Diags->Report(diag::err_analyzer_config_invalid_input) 1093 << Name << "an unsigned"; 1094 } 1095 1096 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1097 DiagnosticsEngine *Diags) { 1098 // TODO: There's no need to store the entire configtable, it'd be plenty 1099 // enough to store checker options. 1100 1101 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1102 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1103 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1104 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1105 1106 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1107 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1108 1109 #define ANALYZER_OPTION(...) 1110 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1111 SHALLOW_VAL, DEEP_VAL) \ 1112 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1113 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1114 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1115 1116 // At this point, AnalyzerOptions is configured. Let's validate some options. 1117 1118 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1119 // The current approach only validates the registered checkers which does not 1120 // contain the runtime enabled checkers and optimally we would validate both. 1121 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1122 std::vector<StringRef> Checkers = 1123 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1124 std::vector<StringRef> Packages = 1125 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1126 1127 SmallVector<StringRef, 16> CheckersAndPackages; 1128 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1129 1130 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1131 if (Diags) { 1132 bool IsChecker = CheckerOrPackage.contains('.'); 1133 bool IsValidName = IsChecker 1134 ? llvm::is_contained(Checkers, CheckerOrPackage) 1135 : llvm::is_contained(Packages, CheckerOrPackage); 1136 1137 if (!IsValidName) 1138 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1139 << CheckerOrPackage; 1140 } 1141 1142 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1143 } 1144 } 1145 1146 if (!Diags) 1147 return; 1148 1149 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1150 Diags->Report(diag::err_analyzer_config_invalid_input) 1151 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1152 1153 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1154 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1155 << "a filename"; 1156 1157 if (!AnOpts.ModelPath.empty() && 1158 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1159 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1160 << "a filename"; 1161 } 1162 1163 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1164 static void 1165 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1166 CompilerInvocation::StringAllocator SA, 1167 OptSpecifier OptEQ, StringRef Name, 1168 const CodeGenOptions::OptRemark &Remark) { 1169 if (Remark.hasValidPattern()) { 1170 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1171 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1172 GenerateArg(Args, OPT_R_Joined, Name, SA); 1173 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1174 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1175 } 1176 } 1177 1178 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1179 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1180 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1181 static CodeGenOptions::OptRemark 1182 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1183 OptSpecifier OptEQ, StringRef Name) { 1184 CodeGenOptions::OptRemark Result; 1185 1186 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1187 StringRef Pattern) { 1188 Result.Pattern = Pattern.str(); 1189 1190 std::string RegexError; 1191 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1192 if (!Result.Regex->isValid(RegexError)) { 1193 Diags.Report(diag::err_drv_optimization_remark_pattern) 1194 << RegexError << A->getAsString(Args); 1195 return false; 1196 } 1197 1198 return true; 1199 }; 1200 1201 for (Arg *A : Args) { 1202 if (A->getOption().matches(OPT_R_Joined)) { 1203 StringRef Value = A->getValue(); 1204 1205 if (Value == Name) 1206 Result.Kind = CodeGenOptions::RK_Enabled; 1207 else if (Value == "everything") 1208 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1209 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1210 Result.Kind = CodeGenOptions::RK_Disabled; 1211 else if (Value == "no-everything") 1212 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1213 else 1214 continue; 1215 1216 if (Result.Kind == CodeGenOptions::RK_Disabled || 1217 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1218 Result.Pattern = ""; 1219 Result.Regex = nullptr; 1220 } else { 1221 InitializeResultPattern(A, ".*"); 1222 } 1223 } else if (A->getOption().matches(OptEQ)) { 1224 Result.Kind = CodeGenOptions::RK_WithPattern; 1225 if (!InitializeResultPattern(A, A->getValue())) 1226 return CodeGenOptions::OptRemark(); 1227 } 1228 } 1229 1230 return Result; 1231 } 1232 1233 static bool parseDiagnosticLevelMask(StringRef FlagName, 1234 const std::vector<std::string> &Levels, 1235 DiagnosticsEngine &Diags, 1236 DiagnosticLevelMask &M) { 1237 bool Success = true; 1238 for (const auto &Level : Levels) { 1239 DiagnosticLevelMask const PM = 1240 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1241 .Case("note", DiagnosticLevelMask::Note) 1242 .Case("remark", DiagnosticLevelMask::Remark) 1243 .Case("warning", DiagnosticLevelMask::Warning) 1244 .Case("error", DiagnosticLevelMask::Error) 1245 .Default(DiagnosticLevelMask::None); 1246 if (PM == DiagnosticLevelMask::None) { 1247 Success = false; 1248 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1249 } 1250 M = M | PM; 1251 } 1252 return Success; 1253 } 1254 1255 static void parseSanitizerKinds(StringRef FlagName, 1256 const std::vector<std::string> &Sanitizers, 1257 DiagnosticsEngine &Diags, SanitizerSet &S) { 1258 for (const auto &Sanitizer : Sanitizers) { 1259 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1260 if (K == SanitizerMask()) 1261 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1262 else 1263 S.set(K, true); 1264 } 1265 } 1266 1267 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1268 SmallVector<StringRef, 4> Values; 1269 serializeSanitizerSet(S, Values); 1270 return Values; 1271 } 1272 1273 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1274 ArgList &Args, DiagnosticsEngine &D, 1275 XRayInstrSet &S) { 1276 llvm::SmallVector<StringRef, 2> BundleParts; 1277 llvm::SplitString(Bundle, BundleParts, ","); 1278 for (const auto &B : BundleParts) { 1279 auto Mask = parseXRayInstrValue(B); 1280 if (Mask == XRayInstrKind::None) 1281 if (B != "none") 1282 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1283 else 1284 S.Mask = Mask; 1285 else if (Mask == XRayInstrKind::All) 1286 S.Mask = Mask; 1287 else 1288 S.set(Mask, true); 1289 } 1290 } 1291 1292 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1293 llvm::SmallVector<StringRef, 2> BundleParts; 1294 serializeXRayInstrValue(S, BundleParts); 1295 std::string Buffer; 1296 llvm::raw_string_ostream OS(Buffer); 1297 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1298 return Buffer; 1299 } 1300 1301 // Set the profile kind using fprofile-instrument-use-path. 1302 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1303 const Twine &ProfileName, 1304 DiagnosticsEngine &Diags) { 1305 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1306 if (auto E = ReaderOrErr.takeError()) { 1307 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1308 "Error in reading profile %0: %1"); 1309 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1310 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1311 }); 1312 return; 1313 } 1314 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1315 std::move(ReaderOrErr.get()); 1316 // Currently memprof profiles are only added at the IR level. Mark the profile 1317 // type as IR in that case as well and the subsequent matching needs to detect 1318 // which is available (might be one or both). 1319 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1320 if (PGOReader->hasCSIRLevelProfile()) 1321 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1322 else 1323 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1324 } else 1325 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1326 } 1327 1328 void CompilerInvocation::GenerateCodeGenArgs( 1329 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1330 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1331 const LangOptions *LangOpts) { 1332 const CodeGenOptions &CodeGenOpts = Opts; 1333 1334 if (Opts.OptimizationLevel == 0) 1335 GenerateArg(Args, OPT_O0, SA); 1336 else 1337 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1338 1339 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1340 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1341 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1342 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1343 MERGER, EXTRACTOR, TABLE_INDEX) \ 1344 GENERATE_OPTION_WITH_MARSHALLING( \ 1345 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1346 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1347 #include "clang/Driver/Options.inc" 1348 #undef CODEGEN_OPTION_WITH_MARSHALLING 1349 1350 if (Opts.OptimizationLevel > 0) { 1351 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1352 GenerateArg(Args, OPT_finline_functions, SA); 1353 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1354 GenerateArg(Args, OPT_finline_hint_functions, SA); 1355 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1356 GenerateArg(Args, OPT_fno_inline, SA); 1357 } 1358 1359 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1360 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1361 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1362 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1363 1364 Optional<StringRef> DebugInfoVal; 1365 switch (Opts.DebugInfo) { 1366 case codegenoptions::DebugLineTablesOnly: 1367 DebugInfoVal = "line-tables-only"; 1368 break; 1369 case codegenoptions::DebugDirectivesOnly: 1370 DebugInfoVal = "line-directives-only"; 1371 break; 1372 case codegenoptions::DebugInfoConstructor: 1373 DebugInfoVal = "constructor"; 1374 break; 1375 case codegenoptions::LimitedDebugInfo: 1376 DebugInfoVal = "limited"; 1377 break; 1378 case codegenoptions::FullDebugInfo: 1379 DebugInfoVal = "standalone"; 1380 break; 1381 case codegenoptions::UnusedTypeInfo: 1382 DebugInfoVal = "unused-types"; 1383 break; 1384 case codegenoptions::NoDebugInfo: // default value 1385 DebugInfoVal = None; 1386 break; 1387 case codegenoptions::LocTrackingOnly: // implied value 1388 DebugInfoVal = None; 1389 break; 1390 } 1391 if (DebugInfoVal) 1392 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1393 1394 for (const auto &Prefix : Opts.DebugPrefixMap) 1395 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1396 Prefix.first + "=" + Prefix.second, SA); 1397 1398 for (const auto &Prefix : Opts.CoveragePrefixMap) 1399 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1400 Prefix.first + "=" + Prefix.second, SA); 1401 1402 if (Opts.NewStructPathTBAA) 1403 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1404 1405 if (Opts.OptimizeSize == 1) 1406 GenerateArg(Args, OPT_O, "s", SA); 1407 else if (Opts.OptimizeSize == 2) 1408 GenerateArg(Args, OPT_O, "z", SA); 1409 1410 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1411 // -ffreestanding. We'll consider that when generating them. 1412 1413 // NoBuiltinFuncs are generated by LangOptions. 1414 1415 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1416 GenerateArg(Args, OPT_funroll_loops, SA); 1417 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1418 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1419 1420 if (!Opts.BinutilsVersion.empty()) 1421 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1422 1423 if (Opts.DebugNameTable == 1424 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1425 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1426 else if (Opts.DebugNameTable == 1427 static_cast<unsigned>( 1428 llvm::DICompileUnit::DebugNameTableKind::Default)) 1429 GenerateArg(Args, OPT_gpubnames, SA); 1430 1431 auto TNK = Opts.getDebugSimpleTemplateNames(); 1432 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1433 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1434 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1435 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1436 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1437 } 1438 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1439 // it or PGOUseInstrumentor. 1440 1441 if (Opts.TimePasses) { 1442 if (Opts.TimePassesPerRun) 1443 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1444 else 1445 GenerateArg(Args, OPT_ftime_report, SA); 1446 } 1447 1448 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1449 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1450 1451 if (Opts.PrepareForThinLTO) 1452 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1453 1454 if (!Opts.ThinLTOIndexFile.empty()) 1455 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1456 1457 if (Opts.SaveTempsFilePrefix == OutputFile) 1458 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1459 1460 StringRef MemProfileBasename("memprof.profraw"); 1461 if (!Opts.MemoryProfileOutput.empty()) { 1462 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1463 GenerateArg(Args, OPT_fmemory_profile, SA); 1464 } else { 1465 size_t ArgLength = 1466 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1467 GenerateArg(Args, OPT_fmemory_profile_EQ, 1468 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1469 } 1470 } 1471 1472 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1473 GenerateArg(Args, OPT_coverage_version_EQ, 1474 StringRef(Opts.CoverageVersion, 4), SA); 1475 1476 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1477 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1478 // won't be generated.) 1479 1480 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1481 std::string InstrBundle = 1482 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1483 if (!InstrBundle.empty()) 1484 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1485 } 1486 1487 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1488 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1489 else if (Opts.CFProtectionReturn) 1490 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1491 else if (Opts.CFProtectionBranch) 1492 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1493 1494 if (Opts.IBTSeal) 1495 GenerateArg(Args, OPT_mibt_seal, SA); 1496 1497 if (Opts.FunctionReturnThunks) 1498 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1499 1500 for (const auto &F : Opts.LinkBitcodeFiles) { 1501 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1502 F.PropagateAttrs && F.Internalize; 1503 GenerateArg(Args, 1504 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1505 F.Filename, SA); 1506 } 1507 1508 GenerateArg( 1509 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1510 1511 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1512 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1513 1514 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1515 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1516 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1517 SA); 1518 1519 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1520 OptSpecifier Opt = 1521 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1522 GenerateArg(Args, Opt, SA); 1523 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1524 OptSpecifier Opt = 1525 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1526 GenerateArg(Args, Opt, SA); 1527 } 1528 1529 if (Opts.EnableAIXExtendedAltivecABI) 1530 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1531 1532 if (!Opts.OptRecordPasses.empty()) 1533 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1534 1535 if (!Opts.OptRecordFormat.empty()) 1536 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1537 1538 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1539 Opts.OptimizationRemark); 1540 1541 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1542 Opts.OptimizationRemarkMissed); 1543 1544 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1545 Opts.OptimizationRemarkAnalysis); 1546 1547 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1548 Opts.DiagnosticsHotnessThreshold 1549 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1550 : "auto", 1551 SA); 1552 1553 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1554 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1555 1556 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1557 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1558 1559 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1560 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1561 1562 if (!Opts.EmitVersionIdentMetadata) 1563 GenerateArg(Args, OPT_Qn, SA); 1564 1565 switch (Opts.FiniteLoops) { 1566 case CodeGenOptions::FiniteLoopsKind::Language: 1567 break; 1568 case CodeGenOptions::FiniteLoopsKind::Always: 1569 GenerateArg(Args, OPT_ffinite_loops, SA); 1570 break; 1571 case CodeGenOptions::FiniteLoopsKind::Never: 1572 GenerateArg(Args, OPT_fno_finite_loops, SA); 1573 break; 1574 } 1575 } 1576 1577 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1578 InputKind IK, 1579 DiagnosticsEngine &Diags, 1580 const llvm::Triple &T, 1581 const std::string &OutputFile, 1582 const LangOptions &LangOptsRef) { 1583 unsigned NumErrorsBefore = Diags.getNumErrors(); 1584 1585 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1586 // TODO: This could be done in Driver 1587 unsigned MaxOptLevel = 3; 1588 if (OptimizationLevel > MaxOptLevel) { 1589 // If the optimization level is not supported, fall back on the default 1590 // optimization 1591 Diags.Report(diag::warn_drv_optimization_value) 1592 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1593 OptimizationLevel = MaxOptLevel; 1594 } 1595 Opts.OptimizationLevel = OptimizationLevel; 1596 1597 // The key paths of codegen options defined in Options.td start with 1598 // "CodeGenOpts.". Let's provide the expected variable name and type. 1599 CodeGenOptions &CodeGenOpts = Opts; 1600 // Some codegen options depend on language options. Let's provide the expected 1601 // variable name and type. 1602 const LangOptions *LangOpts = &LangOptsRef; 1603 1604 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1605 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1606 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1607 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1608 MERGER, EXTRACTOR, TABLE_INDEX) \ 1609 PARSE_OPTION_WITH_MARSHALLING( \ 1610 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1611 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1612 #include "clang/Driver/Options.inc" 1613 #undef CODEGEN_OPTION_WITH_MARSHALLING 1614 1615 // At O0 we want to fully disable inlining outside of cases marked with 1616 // 'alwaysinline' that are required for correctness. 1617 if (Opts.OptimizationLevel == 0) { 1618 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1619 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1620 options::OPT_finline_hint_functions, 1621 options::OPT_fno_inline_functions, 1622 options::OPT_fno_inline)) { 1623 // Explicit inlining flags can disable some or all inlining even at 1624 // optimization levels above zero. 1625 if (A->getOption().matches(options::OPT_finline_functions)) 1626 Opts.setInlining(CodeGenOptions::NormalInlining); 1627 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1628 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1629 else 1630 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1631 } else { 1632 Opts.setInlining(CodeGenOptions::NormalInlining); 1633 } 1634 1635 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1636 // -fdirect-access-external-data. 1637 Opts.DirectAccessExternalData = 1638 Args.hasArg(OPT_fdirect_access_external_data) || 1639 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1640 LangOpts->PICLevel == 0); 1641 1642 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1643 unsigned Val = 1644 llvm::StringSwitch<unsigned>(A->getValue()) 1645 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1646 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1647 .Case("constructor", codegenoptions::DebugInfoConstructor) 1648 .Case("limited", codegenoptions::LimitedDebugInfo) 1649 .Case("standalone", codegenoptions::FullDebugInfo) 1650 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1651 .Default(~0U); 1652 if (Val == ~0U) 1653 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1654 << A->getValue(); 1655 else 1656 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1657 } 1658 1659 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1660 // constructor homing, and vice versa for -fno-use-ctor-homing. 1661 if (const Arg *A = 1662 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1663 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1664 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1665 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1666 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1667 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1668 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1669 } 1670 1671 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1672 auto Split = StringRef(Arg).split('='); 1673 Opts.DebugPrefixMap.insert( 1674 {std::string(Split.first), std::string(Split.second)}); 1675 } 1676 1677 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1678 auto Split = StringRef(Arg).split('='); 1679 Opts.CoveragePrefixMap.insert( 1680 {std::string(Split.first), std::string(Split.second)}); 1681 } 1682 1683 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1684 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1685 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1686 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1687 1688 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1689 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1690 Opts.EmitCallSiteInfo = true; 1691 1692 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1693 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1694 << Opts.DIBugsReportFilePath; 1695 Opts.DIBugsReportFilePath = ""; 1696 } 1697 1698 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1699 Args.hasArg(OPT_new_struct_path_tbaa); 1700 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1701 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1702 if (Opts.SimplifyLibCalls) 1703 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1704 Opts.UnrollLoops = 1705 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1706 (Opts.OptimizationLevel > 1)); 1707 Opts.BinutilsVersion = 1708 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1709 1710 Opts.DebugNameTable = static_cast<unsigned>( 1711 Args.hasArg(OPT_ggnu_pubnames) 1712 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1713 : Args.hasArg(OPT_gpubnames) 1714 ? llvm::DICompileUnit::DebugNameTableKind::Default 1715 : llvm::DICompileUnit::DebugNameTableKind::None); 1716 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1717 StringRef Value = A->getValue(); 1718 if (Value != "simple" && Value != "mangled") 1719 Diags.Report(diag::err_drv_unsupported_option_argument) 1720 << A->getSpelling() << A->getValue(); 1721 Opts.setDebugSimpleTemplateNames( 1722 StringRef(A->getValue()) == "simple" 1723 ? codegenoptions::DebugTemplateNamesKind::Simple 1724 : codegenoptions::DebugTemplateNamesKind::Mangled); 1725 } 1726 1727 if (!Opts.ProfileInstrumentUsePath.empty()) 1728 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath, Diags); 1729 1730 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1731 Opts.TimePasses = true; 1732 1733 // -ftime-report= is only for new pass manager. 1734 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1735 StringRef Val = A->getValue(); 1736 if (Val == "per-pass") 1737 Opts.TimePassesPerRun = false; 1738 else if (Val == "per-pass-run") 1739 Opts.TimePassesPerRun = true; 1740 else 1741 Diags.Report(diag::err_drv_invalid_value) 1742 << A->getAsString(Args) << A->getValue(); 1743 } 1744 } 1745 1746 Opts.PrepareForLTO = false; 1747 Opts.PrepareForThinLTO = false; 1748 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1749 Opts.PrepareForLTO = true; 1750 StringRef S = A->getValue(); 1751 if (S == "thin") 1752 Opts.PrepareForThinLTO = true; 1753 else if (S != "full") 1754 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1755 } 1756 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1757 if (IK.getLanguage() != Language::LLVM_IR) 1758 Diags.Report(diag::err_drv_argument_only_allowed_with) 1759 << A->getAsString(Args) << "-x ir"; 1760 Opts.ThinLTOIndexFile = 1761 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1762 } 1763 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1764 Opts.SaveTempsFilePrefix = 1765 llvm::StringSwitch<std::string>(A->getValue()) 1766 .Case("obj", OutputFile) 1767 .Default(llvm::sys::path::filename(OutputFile).str()); 1768 1769 // The memory profile runtime appends the pid to make this name more unique. 1770 const char *MemProfileBasename = "memprof.profraw"; 1771 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1772 SmallString<128> Path( 1773 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1774 llvm::sys::path::append(Path, MemProfileBasename); 1775 Opts.MemoryProfileOutput = std::string(Path); 1776 } else if (Args.hasArg(OPT_fmemory_profile)) 1777 Opts.MemoryProfileOutput = MemProfileBasename; 1778 1779 memcpy(Opts.CoverageVersion, "408*", 4); 1780 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1781 if (Args.hasArg(OPT_coverage_version_EQ)) { 1782 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1783 if (CoverageVersion.size() != 4) { 1784 Diags.Report(diag::err_drv_invalid_value) 1785 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1786 << CoverageVersion; 1787 } else { 1788 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1789 } 1790 } 1791 } 1792 // FIXME: For backend options that are not yet recorded as function 1793 // attributes in the IR, keep track of them so we can embed them in a 1794 // separate data section and use them when building the bitcode. 1795 for (const auto &A : Args) { 1796 // Do not encode output and input. 1797 if (A->getOption().getID() == options::OPT_o || 1798 A->getOption().getID() == options::OPT_INPUT || 1799 A->getOption().getID() == options::OPT_x || 1800 A->getOption().getID() == options::OPT_fembed_bitcode || 1801 A->getOption().matches(options::OPT_W_Group)) 1802 continue; 1803 ArgStringList ASL; 1804 A->render(Args, ASL); 1805 for (const auto &arg : ASL) { 1806 StringRef ArgStr(arg); 1807 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1808 // using \00 to separate each commandline options. 1809 Opts.CmdArgs.push_back('\0'); 1810 } 1811 } 1812 1813 auto XRayInstrBundles = 1814 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1815 if (XRayInstrBundles.empty()) 1816 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1817 else 1818 for (const auto &A : XRayInstrBundles) 1819 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1820 Diags, Opts.XRayInstrumentationBundle); 1821 1822 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1823 StringRef Name = A->getValue(); 1824 if (Name == "full") { 1825 Opts.CFProtectionReturn = 1; 1826 Opts.CFProtectionBranch = 1; 1827 } else if (Name == "return") 1828 Opts.CFProtectionReturn = 1; 1829 else if (Name == "branch") 1830 Opts.CFProtectionBranch = 1; 1831 else if (Name != "none") 1832 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1833 } 1834 1835 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1836 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1837 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1838 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1839 .Default(llvm::FunctionReturnThunksKind::Invalid); 1840 // SystemZ might want to add support for "expolines." 1841 if (!T.isX86()) 1842 Diags.Report(diag::err_drv_argument_not_allowed_with) 1843 << A->getSpelling() << T.getTriple(); 1844 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1845 Diags.Report(diag::err_drv_invalid_value) 1846 << A->getAsString(Args) << A->getValue(); 1847 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1848 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1849 Diags.Report(diag::err_drv_argument_not_allowed_with) 1850 << A->getAsString(Args) 1851 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1852 else 1853 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1854 } 1855 1856 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1857 Opts.IBTSeal = 1; 1858 1859 for (auto *A : 1860 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1861 CodeGenOptions::BitcodeFileToLink F; 1862 F.Filename = A->getValue(); 1863 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1864 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1865 // When linking CUDA bitcode, propagate function attributes so that 1866 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1867 F.PropagateAttrs = true; 1868 F.Internalize = true; 1869 } 1870 Opts.LinkBitcodeFiles.push_back(F); 1871 } 1872 1873 if (!Args.getLastArg(OPT_femulated_tls) && 1874 !Args.getLastArg(OPT_fno_emulated_tls)) { 1875 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1876 } 1877 1878 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1879 if (T.isOSAIX()) { 1880 StringRef Name = A->getValue(); 1881 if (Name != "global-dynamic") 1882 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1883 } 1884 } 1885 1886 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1887 StringRef Val = A->getValue(); 1888 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1889 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1890 if (!Opts.FPDenormalMode.isValid()) 1891 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1892 } 1893 1894 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1895 StringRef Val = A->getValue(); 1896 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1897 if (!Opts.FP32DenormalMode.isValid()) 1898 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1899 } 1900 1901 // X86_32 has -fppc-struct-return and -freg-struct-return. 1902 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1903 if (Arg *A = 1904 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1905 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1906 // TODO: We might want to consider enabling these options on AIX in the 1907 // future. 1908 if (T.isOSAIX()) 1909 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1910 << A->getSpelling() << T.str(); 1911 1912 const Option &O = A->getOption(); 1913 if (O.matches(OPT_fpcc_struct_return) || 1914 O.matches(OPT_maix_struct_return)) { 1915 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1916 } else { 1917 assert(O.matches(OPT_freg_struct_return) || 1918 O.matches(OPT_msvr4_struct_return)); 1919 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1920 } 1921 } 1922 1923 if (Arg *A = 1924 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1925 if (!T.isOSAIX()) 1926 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1927 << A->getSpelling() << T.str(); 1928 1929 const Option &O = A->getOption(); 1930 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1931 } 1932 1933 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1934 if (!T.isOSAIX() || T.isPPC32()) 1935 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1936 << A->getSpelling() << T.str(); 1937 } 1938 1939 bool NeedLocTracking = false; 1940 1941 if (!Opts.OptRecordFile.empty()) 1942 NeedLocTracking = true; 1943 1944 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1945 Opts.OptRecordPasses = A->getValue(); 1946 NeedLocTracking = true; 1947 } 1948 1949 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1950 Opts.OptRecordFormat = A->getValue(); 1951 NeedLocTracking = true; 1952 } 1953 1954 Opts.OptimizationRemark = 1955 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1956 1957 Opts.OptimizationRemarkMissed = 1958 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1959 1960 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1961 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1962 1963 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1964 Opts.OptimizationRemarkMissed.hasValidPattern() || 1965 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1966 1967 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1968 bool UsingProfile = UsingSampleProfile || 1969 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1970 1971 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1972 // An IR file will contain PGO as metadata 1973 IK.getLanguage() != Language::LLVM_IR) 1974 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1975 << "-fdiagnostics-show-hotness"; 1976 1977 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1978 if (auto *arg = 1979 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1980 auto ResultOrErr = 1981 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1982 1983 if (!ResultOrErr) { 1984 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1985 << "-fdiagnostics-hotness-threshold="; 1986 } else { 1987 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1988 if ((!Opts.DiagnosticsHotnessThreshold || 1989 Opts.DiagnosticsHotnessThreshold.value() > 0) && 1990 !UsingProfile) 1991 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1992 << "-fdiagnostics-hotness-threshold="; 1993 } 1994 } 1995 1996 if (auto *arg = 1997 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1998 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1999 2000 if (!ResultOrErr) { 2001 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2002 << "-fdiagnostics-misexpect-tolerance="; 2003 } else { 2004 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2005 if ((!Opts.DiagnosticsMisExpectTolerance || 2006 Opts.DiagnosticsMisExpectTolerance.value() > 0) && 2007 !UsingProfile) 2008 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2009 << "-fdiagnostics-misexpect-tolerance="; 2010 } 2011 } 2012 2013 // If the user requested to use a sample profile for PGO, then the 2014 // backend will need to track source location information so the profile 2015 // can be incorporated into the IR. 2016 if (UsingSampleProfile) 2017 NeedLocTracking = true; 2018 2019 if (!Opts.StackUsageOutput.empty()) 2020 NeedLocTracking = true; 2021 2022 // If the user requested a flag that requires source locations available in 2023 // the backend, make sure that the backend tracks source location information. 2024 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2025 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2026 2027 // Parse -fsanitize-recover= arguments. 2028 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2029 parseSanitizerKinds("-fsanitize-recover=", 2030 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2031 Opts.SanitizeRecover); 2032 parseSanitizerKinds("-fsanitize-trap=", 2033 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2034 Opts.SanitizeTrap); 2035 2036 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2037 2038 if (Args.hasArg(options::OPT_ffinite_loops)) 2039 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2040 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2041 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2042 2043 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2044 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2045 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2046 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2047 2048 return Diags.getNumErrors() == NumErrorsBefore; 2049 } 2050 2051 static void 2052 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2053 SmallVectorImpl<const char *> &Args, 2054 CompilerInvocation::StringAllocator SA) { 2055 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2056 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2057 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2058 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2059 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2060 MERGER, EXTRACTOR, TABLE_INDEX) \ 2061 GENERATE_OPTION_WITH_MARSHALLING( \ 2062 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2063 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2064 #include "clang/Driver/Options.inc" 2065 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2066 2067 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2068 GenerateArg(Args, OPT_show_includes, SA); 2069 2070 for (const auto &Dep : Opts.ExtraDeps) { 2071 switch (Dep.second) { 2072 case EDK_SanitizeIgnorelist: 2073 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2074 continue; 2075 case EDK_ModuleFile: 2076 // Module file arguments are generated from FrontendOptions and 2077 // HeaderSearchOptions. 2078 continue; 2079 case EDK_ProfileList: 2080 // Profile list arguments are generated from LanguageOptions via the 2081 // marshalling infrastructure. 2082 continue; 2083 case EDK_DepFileEntry: 2084 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2085 break; 2086 } 2087 } 2088 } 2089 2090 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2091 ArgList &Args, DiagnosticsEngine &Diags, 2092 frontend::ActionKind Action, 2093 bool ShowLineMarkers) { 2094 unsigned NumErrorsBefore = Diags.getNumErrors(); 2095 2096 DependencyOutputOptions &DependencyOutputOpts = Opts; 2097 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2098 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2099 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2100 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2101 MERGER, EXTRACTOR, TABLE_INDEX) \ 2102 PARSE_OPTION_WITH_MARSHALLING( \ 2103 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2104 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2105 #include "clang/Driver/Options.inc" 2106 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2107 2108 if (Args.hasArg(OPT_show_includes)) { 2109 // Writing both /showIncludes and preprocessor output to stdout 2110 // would produce interleaved output, so use stderr for /showIncludes. 2111 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2112 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2113 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2114 else 2115 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2116 } else { 2117 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2118 } 2119 2120 // Add sanitizer ignorelists as extra dependencies. 2121 // They won't be discovered by the regular preprocessor, so 2122 // we let make / ninja to know about this implicit dependency. 2123 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2124 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2125 StringRef Val = A->getValue(); 2126 if (!Val.contains('=')) 2127 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2128 } 2129 if (Opts.IncludeSystemHeaders) { 2130 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2131 StringRef Val = A->getValue(); 2132 if (!Val.contains('=')) 2133 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2134 } 2135 } 2136 } 2137 2138 // -fprofile-list= dependencies. 2139 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2140 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2141 2142 // Propagate the extra dependencies. 2143 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2144 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2145 2146 // Only the -fmodule-file=<file> form. 2147 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2148 StringRef Val = A->getValue(); 2149 if (!Val.contains('=')) 2150 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2151 } 2152 2153 return Diags.getNumErrors() == NumErrorsBefore; 2154 } 2155 2156 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2157 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2158 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2159 // Support both clang's -f[no-]color-diagnostics and gcc's 2160 // -f[no-]diagnostics-colors[=never|always|auto]. 2161 enum { 2162 Colors_On, 2163 Colors_Off, 2164 Colors_Auto 2165 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2166 for (auto *A : Args) { 2167 const Option &O = A->getOption(); 2168 if (O.matches(options::OPT_fcolor_diagnostics)) { 2169 ShowColors = Colors_On; 2170 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2171 ShowColors = Colors_Off; 2172 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2173 StringRef Value(A->getValue()); 2174 if (Value == "always") 2175 ShowColors = Colors_On; 2176 else if (Value == "never") 2177 ShowColors = Colors_Off; 2178 else if (Value == "auto") 2179 ShowColors = Colors_Auto; 2180 } 2181 } 2182 return ShowColors == Colors_On || 2183 (ShowColors == Colors_Auto && 2184 llvm::sys::Process::StandardErrHasColors()); 2185 } 2186 2187 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2188 DiagnosticsEngine &Diags) { 2189 bool Success = true; 2190 for (const auto &Prefix : VerifyPrefixes) { 2191 // Every prefix must start with a letter and contain only alphanumeric 2192 // characters, hyphens, and underscores. 2193 auto BadChar = llvm::find_if(Prefix, [](char C) { 2194 return !isAlphanumeric(C) && C != '-' && C != '_'; 2195 }); 2196 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2197 Success = false; 2198 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2199 Diags.Report(diag::note_drv_verify_prefix_spelling); 2200 } 2201 } 2202 return Success; 2203 } 2204 2205 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2206 SmallVectorImpl<const char *> &Args, 2207 CompilerInvocation::StringAllocator SA) { 2208 const FileSystemOptions &FileSystemOpts = Opts; 2209 2210 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2211 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2212 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2213 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2214 MERGER, EXTRACTOR, TABLE_INDEX) \ 2215 GENERATE_OPTION_WITH_MARSHALLING( \ 2216 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2217 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2218 #include "clang/Driver/Options.inc" 2219 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2220 } 2221 2222 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2223 DiagnosticsEngine &Diags) { 2224 unsigned NumErrorsBefore = Diags.getNumErrors(); 2225 2226 FileSystemOptions &FileSystemOpts = Opts; 2227 2228 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2229 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2230 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2231 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2232 MERGER, EXTRACTOR, TABLE_INDEX) \ 2233 PARSE_OPTION_WITH_MARSHALLING( \ 2234 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2235 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2236 #include "clang/Driver/Options.inc" 2237 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2238 2239 return Diags.getNumErrors() == NumErrorsBefore; 2240 } 2241 2242 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2243 SmallVectorImpl<const char *> &Args, 2244 CompilerInvocation::StringAllocator SA) { 2245 const MigratorOptions &MigratorOpts = Opts; 2246 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2247 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2248 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2249 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2250 MERGER, EXTRACTOR, TABLE_INDEX) \ 2251 GENERATE_OPTION_WITH_MARSHALLING( \ 2252 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2253 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2254 #include "clang/Driver/Options.inc" 2255 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2256 } 2257 2258 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2259 DiagnosticsEngine &Diags) { 2260 unsigned NumErrorsBefore = Diags.getNumErrors(); 2261 2262 MigratorOptions &MigratorOpts = Opts; 2263 2264 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2265 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2266 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2267 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2268 MERGER, EXTRACTOR, TABLE_INDEX) \ 2269 PARSE_OPTION_WITH_MARSHALLING( \ 2270 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2271 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2272 #include "clang/Driver/Options.inc" 2273 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2274 2275 return Diags.getNumErrors() == NumErrorsBefore; 2276 } 2277 2278 void CompilerInvocation::GenerateDiagnosticArgs( 2279 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2280 StringAllocator SA, bool DefaultDiagColor) { 2281 const DiagnosticOptions *DiagnosticOpts = &Opts; 2282 #define DIAG_OPTION_WITH_MARSHALLING( \ 2283 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2284 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2285 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2286 MERGER, EXTRACTOR, TABLE_INDEX) \ 2287 GENERATE_OPTION_WITH_MARSHALLING( \ 2288 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2289 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2290 #include "clang/Driver/Options.inc" 2291 #undef DIAG_OPTION_WITH_MARSHALLING 2292 2293 if (!Opts.DiagnosticSerializationFile.empty()) 2294 GenerateArg(Args, OPT_diagnostic_serialized_file, 2295 Opts.DiagnosticSerializationFile, SA); 2296 2297 if (Opts.ShowColors) 2298 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2299 2300 if (Opts.VerifyDiagnostics && 2301 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2302 GenerateArg(Args, OPT_verify, SA); 2303 2304 for (const auto &Prefix : Opts.VerifyPrefixes) 2305 if (Prefix != "expected") 2306 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2307 2308 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2309 if (VIU == DiagnosticLevelMask::None) { 2310 // This is the default, don't generate anything. 2311 } else if (VIU == DiagnosticLevelMask::All) { 2312 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2313 } else { 2314 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2315 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2316 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2317 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2318 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2319 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2320 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2321 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2322 } 2323 2324 for (const auto &Warning : Opts.Warnings) { 2325 // This option is automatically generated from UndefPrefixes. 2326 if (Warning == "undef-prefix") 2327 continue; 2328 Args.push_back(SA(StringRef("-W") + Warning)); 2329 } 2330 2331 for (const auto &Remark : Opts.Remarks) { 2332 // These arguments are generated from OptimizationRemark fields of 2333 // CodeGenOptions. 2334 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2335 "pass-analysis", "no-pass-analysis", 2336 "pass-missed", "no-pass-missed"}; 2337 if (llvm::is_contained(IgnoredRemarks, Remark)) 2338 continue; 2339 2340 Args.push_back(SA(StringRef("-R") + Remark)); 2341 } 2342 } 2343 2344 std::unique_ptr<DiagnosticOptions> 2345 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2346 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2347 unsigned MissingArgIndex, MissingArgCount; 2348 InputArgList Args = getDriverOptTable().ParseArgs( 2349 Argv.slice(1), MissingArgIndex, MissingArgCount); 2350 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2351 // Any errors that would be diagnosed here will also be diagnosed later, 2352 // when the DiagnosticsEngine actually exists. 2353 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2354 return DiagOpts; 2355 } 2356 2357 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2358 DiagnosticsEngine *Diags, 2359 bool DefaultDiagColor) { 2360 Optional<DiagnosticsEngine> IgnoringDiags; 2361 if (!Diags) { 2362 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2363 new IgnoringDiagConsumer()); 2364 Diags = &*IgnoringDiags; 2365 } 2366 2367 unsigned NumErrorsBefore = Diags->getNumErrors(); 2368 2369 // The key paths of diagnostic options defined in Options.td start with 2370 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2371 DiagnosticOptions *DiagnosticOpts = &Opts; 2372 2373 #define DIAG_OPTION_WITH_MARSHALLING( \ 2374 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2375 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2376 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2377 MERGER, EXTRACTOR, TABLE_INDEX) \ 2378 PARSE_OPTION_WITH_MARSHALLING( \ 2379 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2380 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2381 #include "clang/Driver/Options.inc" 2382 #undef DIAG_OPTION_WITH_MARSHALLING 2383 2384 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2385 2386 if (Arg *A = 2387 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2388 Opts.DiagnosticSerializationFile = A->getValue(); 2389 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2390 2391 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2392 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2393 if (Args.hasArg(OPT_verify)) 2394 Opts.VerifyPrefixes.push_back("expected"); 2395 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2396 // then sort it to prepare for fast lookup using std::binary_search. 2397 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2398 Opts.VerifyDiagnostics = false; 2399 else 2400 llvm::sort(Opts.VerifyPrefixes); 2401 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2402 parseDiagnosticLevelMask( 2403 "-verify-ignore-unexpected=", 2404 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2405 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2406 DiagMask = DiagnosticLevelMask::All; 2407 Opts.setVerifyIgnoreUnexpected(DiagMask); 2408 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2409 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2410 Diags->Report(diag::warn_ignoring_ftabstop_value) 2411 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2412 } 2413 2414 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2415 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2416 2417 return Diags->getNumErrors() == NumErrorsBefore; 2418 } 2419 2420 /// Parse the argument to the -ftest-module-file-extension 2421 /// command-line argument. 2422 /// 2423 /// \returns true on error, false on success. 2424 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2425 std::string &BlockName, 2426 unsigned &MajorVersion, 2427 unsigned &MinorVersion, 2428 bool &Hashed, 2429 std::string &UserInfo) { 2430 SmallVector<StringRef, 5> Args; 2431 Arg.split(Args, ':', 5); 2432 if (Args.size() < 5) 2433 return true; 2434 2435 BlockName = std::string(Args[0]); 2436 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2437 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2438 if (Args[3].getAsInteger(2, Hashed)) return true; 2439 if (Args.size() > 4) 2440 UserInfo = std::string(Args[4]); 2441 return false; 2442 } 2443 2444 /// Return a table that associates command line option specifiers with the 2445 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2446 /// intentionally missing, as this case is handled separately from other 2447 /// frontend options. 2448 static const auto &getFrontendActionTable() { 2449 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2450 {frontend::ASTDeclList, OPT_ast_list}, 2451 2452 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2453 {frontend::ASTDump, OPT_ast_dump_all}, 2454 {frontend::ASTDump, OPT_ast_dump_EQ}, 2455 {frontend::ASTDump, OPT_ast_dump}, 2456 {frontend::ASTDump, OPT_ast_dump_lookups}, 2457 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2458 2459 {frontend::ASTPrint, OPT_ast_print}, 2460 {frontend::ASTView, OPT_ast_view}, 2461 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2462 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2463 {frontend::DumpTokens, OPT_dump_tokens}, 2464 {frontend::EmitAssembly, OPT_S}, 2465 {frontend::EmitBC, OPT_emit_llvm_bc}, 2466 {frontend::EmitHTML, OPT_emit_html}, 2467 {frontend::EmitLLVM, OPT_emit_llvm}, 2468 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2469 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2470 {frontend::EmitObj, OPT_emit_obj}, 2471 {frontend::ExtractAPI, OPT_extract_api}, 2472 2473 {frontend::FixIt, OPT_fixit_EQ}, 2474 {frontend::FixIt, OPT_fixit}, 2475 2476 {frontend::GenerateModule, OPT_emit_module}, 2477 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2478 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2479 {frontend::GeneratePCH, OPT_emit_pch}, 2480 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2481 {frontend::InitOnly, OPT_init_only}, 2482 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2483 {frontend::ModuleFileInfo, OPT_module_file_info}, 2484 {frontend::VerifyPCH, OPT_verify_pch}, 2485 {frontend::PrintPreamble, OPT_print_preamble}, 2486 {frontend::PrintPreprocessedInput, OPT_E}, 2487 {frontend::TemplightDump, OPT_templight_dump}, 2488 {frontend::RewriteMacros, OPT_rewrite_macros}, 2489 {frontend::RewriteObjC, OPT_rewrite_objc}, 2490 {frontend::RewriteTest, OPT_rewrite_test}, 2491 {frontend::RunAnalysis, OPT_analyze}, 2492 {frontend::MigrateSource, OPT_migrate}, 2493 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2494 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2495 OPT_print_dependency_directives_minimized_source}, 2496 }; 2497 2498 return Table; 2499 } 2500 2501 /// Maps command line option to frontend action. 2502 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2503 for (const auto &ActionOpt : getFrontendActionTable()) 2504 if (ActionOpt.second == Opt.getID()) 2505 return ActionOpt.first; 2506 2507 return None; 2508 } 2509 2510 /// Maps frontend action to command line option. 2511 static Optional<OptSpecifier> 2512 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2513 for (const auto &ActionOpt : getFrontendActionTable()) 2514 if (ActionOpt.first == ProgramAction) 2515 return OptSpecifier(ActionOpt.second); 2516 2517 return None; 2518 } 2519 2520 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2521 SmallVectorImpl<const char *> &Args, 2522 CompilerInvocation::StringAllocator SA, 2523 bool IsHeader) { 2524 const FrontendOptions &FrontendOpts = Opts; 2525 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2526 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2527 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2528 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2529 MERGER, EXTRACTOR, TABLE_INDEX) \ 2530 GENERATE_OPTION_WITH_MARSHALLING( \ 2531 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2532 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2533 #include "clang/Driver/Options.inc" 2534 #undef FRONTEND_OPTION_WITH_MARSHALLING 2535 2536 Optional<OptSpecifier> ProgramActionOpt = 2537 getProgramActionOpt(Opts.ProgramAction); 2538 2539 // Generating a simple flag covers most frontend actions. 2540 std::function<void()> GenerateProgramAction = [&]() { 2541 GenerateArg(Args, *ProgramActionOpt, SA); 2542 }; 2543 2544 if (!ProgramActionOpt) { 2545 // PluginAction is the only program action handled separately. 2546 assert(Opts.ProgramAction == frontend::PluginAction && 2547 "Frontend action without option."); 2548 GenerateProgramAction = [&]() { 2549 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2550 }; 2551 } 2552 2553 // FIXME: Simplify the complex 'AST dump' command line. 2554 if (Opts.ProgramAction == frontend::ASTDump) { 2555 GenerateProgramAction = [&]() { 2556 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2557 // marshalling infrastructure. 2558 2559 if (Opts.ASTDumpFormat != ADOF_Default) { 2560 StringRef Format; 2561 switch (Opts.ASTDumpFormat) { 2562 case ADOF_Default: 2563 llvm_unreachable("Default AST dump format."); 2564 case ADOF_JSON: 2565 Format = "json"; 2566 break; 2567 } 2568 2569 if (Opts.ASTDumpAll) 2570 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2571 if (Opts.ASTDumpDecls) 2572 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2573 } else { 2574 if (Opts.ASTDumpAll) 2575 GenerateArg(Args, OPT_ast_dump_all, SA); 2576 if (Opts.ASTDumpDecls) 2577 GenerateArg(Args, OPT_ast_dump, SA); 2578 } 2579 }; 2580 } 2581 2582 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2583 GenerateProgramAction = [&]() { 2584 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2585 }; 2586 } 2587 2588 GenerateProgramAction(); 2589 2590 for (const auto &PluginArgs : Opts.PluginArgs) { 2591 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2592 const char *Spelling = 2593 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2594 for (const auto &PluginArg : PluginArgs.second) 2595 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2596 } 2597 2598 for (const auto &Ext : Opts.ModuleFileExtensions) 2599 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2600 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2601 2602 if (!Opts.CodeCompletionAt.FileName.empty()) 2603 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2604 SA); 2605 2606 for (const auto &Plugin : Opts.Plugins) 2607 GenerateArg(Args, OPT_load, Plugin, SA); 2608 2609 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2610 2611 for (const auto &ModuleFile : Opts.ModuleFiles) 2612 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2613 2614 if (Opts.AuxTargetCPU) 2615 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2616 2617 if (Opts.AuxTargetFeatures) 2618 for (const auto &Feature : *Opts.AuxTargetFeatures) 2619 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2620 2621 { 2622 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2623 StringRef ModuleMap = 2624 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2625 StringRef HeaderUnit = ""; 2626 switch (Opts.DashX.getHeaderUnitKind()) { 2627 case InputKind::HeaderUnit_None: 2628 break; 2629 case InputKind::HeaderUnit_User: 2630 HeaderUnit = "-user"; 2631 break; 2632 case InputKind::HeaderUnit_System: 2633 HeaderUnit = "-system"; 2634 break; 2635 case InputKind::HeaderUnit_Abs: 2636 HeaderUnit = "-header-unit"; 2637 break; 2638 } 2639 StringRef Header = IsHeader ? "-header" : ""; 2640 2641 StringRef Lang; 2642 switch (Opts.DashX.getLanguage()) { 2643 case Language::C: 2644 Lang = "c"; 2645 break; 2646 case Language::OpenCL: 2647 Lang = "cl"; 2648 break; 2649 case Language::OpenCLCXX: 2650 Lang = "clcpp"; 2651 break; 2652 case Language::CUDA: 2653 Lang = "cuda"; 2654 break; 2655 case Language::HIP: 2656 Lang = "hip"; 2657 break; 2658 case Language::CXX: 2659 Lang = "c++"; 2660 break; 2661 case Language::ObjC: 2662 Lang = "objective-c"; 2663 break; 2664 case Language::ObjCXX: 2665 Lang = "objective-c++"; 2666 break; 2667 case Language::RenderScript: 2668 Lang = "renderscript"; 2669 break; 2670 case Language::Asm: 2671 Lang = "assembler-with-cpp"; 2672 break; 2673 case Language::Unknown: 2674 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2675 "Generating -x argument for unknown language (not precompiled)."); 2676 Lang = "ast"; 2677 break; 2678 case Language::LLVM_IR: 2679 Lang = "ir"; 2680 break; 2681 case Language::HLSL: 2682 Lang = "hlsl"; 2683 break; 2684 } 2685 2686 GenerateArg(Args, OPT_x, 2687 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2688 } 2689 2690 // OPT_INPUT has a unique class, generate it directly. 2691 for (const auto &Input : Opts.Inputs) 2692 Args.push_back(SA(Input.getFile())); 2693 } 2694 2695 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2696 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2697 unsigned NumErrorsBefore = Diags.getNumErrors(); 2698 2699 FrontendOptions &FrontendOpts = Opts; 2700 2701 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2702 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2703 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2704 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2705 MERGER, EXTRACTOR, TABLE_INDEX) \ 2706 PARSE_OPTION_WITH_MARSHALLING( \ 2707 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2708 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2709 #include "clang/Driver/Options.inc" 2710 #undef FRONTEND_OPTION_WITH_MARSHALLING 2711 2712 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2713 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2714 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2715 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2716 assert(ProgramAction && "Option specifier not in Action_Group."); 2717 2718 if (ProgramAction == frontend::ASTDump && 2719 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2720 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2721 .CaseLower("default", ADOF_Default) 2722 .CaseLower("json", ADOF_JSON) 2723 .Default(std::numeric_limits<unsigned>::max()); 2724 2725 if (Val != std::numeric_limits<unsigned>::max()) 2726 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2727 else { 2728 Diags.Report(diag::err_drv_invalid_value) 2729 << A->getAsString(Args) << A->getValue(); 2730 Opts.ASTDumpFormat = ADOF_Default; 2731 } 2732 } 2733 2734 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2735 Opts.FixItSuffix = A->getValue(); 2736 2737 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2738 StringRef ArgStr = 2739 Args.hasArg(OPT_interface_stub_version_EQ) 2740 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2741 : "ifs-v1"; 2742 if (ArgStr == "experimental-yaml-elf-v1" || 2743 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2744 ArgStr == "experimental-tapi-elf-v1") { 2745 std::string ErrorMessage = 2746 "Invalid interface stub format: " + ArgStr.str() + 2747 " is deprecated."; 2748 Diags.Report(diag::err_drv_invalid_value) 2749 << "Must specify a valid interface stub format type, ie: " 2750 "-interface-stub-version=ifs-v1" 2751 << ErrorMessage; 2752 ProgramAction = frontend::ParseSyntaxOnly; 2753 } else if (!ArgStr.startswith("ifs-")) { 2754 std::string ErrorMessage = 2755 "Invalid interface stub format: " + ArgStr.str() + "."; 2756 Diags.Report(diag::err_drv_invalid_value) 2757 << "Must specify a valid interface stub format type, ie: " 2758 "-interface-stub-version=ifs-v1" 2759 << ErrorMessage; 2760 ProgramAction = frontend::ParseSyntaxOnly; 2761 } 2762 } 2763 2764 Opts.ProgramAction = *ProgramAction; 2765 } 2766 2767 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2768 Opts.Plugins.emplace_back(A->getValue(0)); 2769 Opts.ProgramAction = frontend::PluginAction; 2770 Opts.ActionName = A->getValue(); 2771 } 2772 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2773 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2774 2775 for (const std::string &Arg : 2776 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2777 std::string BlockName; 2778 unsigned MajorVersion; 2779 unsigned MinorVersion; 2780 bool Hashed; 2781 std::string UserInfo; 2782 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2783 MinorVersion, Hashed, UserInfo)) { 2784 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2785 2786 continue; 2787 } 2788 2789 // Add the testing module file extension. 2790 Opts.ModuleFileExtensions.push_back( 2791 std::make_shared<TestModuleFileExtension>( 2792 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2793 } 2794 2795 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2796 Opts.CodeCompletionAt = 2797 ParsedSourceLocation::FromString(A->getValue()); 2798 if (Opts.CodeCompletionAt.FileName.empty()) 2799 Diags.Report(diag::err_drv_invalid_value) 2800 << A->getAsString(Args) << A->getValue(); 2801 } 2802 2803 Opts.Plugins = Args.getAllArgValues(OPT_load); 2804 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2805 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2806 // Only the -fmodule-file=<file> form. 2807 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2808 StringRef Val = A->getValue(); 2809 if (!Val.contains('=')) 2810 Opts.ModuleFiles.push_back(std::string(Val)); 2811 } 2812 2813 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2814 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2815 << "-emit-module"; 2816 2817 if (Args.hasArg(OPT_aux_target_cpu)) 2818 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2819 if (Args.hasArg(OPT_aux_target_feature)) 2820 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2821 2822 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2823 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2824 Diags.Report(diag::err_drv_argument_not_allowed_with) 2825 << "ARC migration" << "ObjC migration"; 2826 } 2827 2828 InputKind DashX(Language::Unknown); 2829 if (const Arg *A = Args.getLastArg(OPT_x)) { 2830 StringRef XValue = A->getValue(); 2831 2832 // Parse suffixes: 2833 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2834 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2835 bool Preprocessed = XValue.consume_back("-cpp-output"); 2836 bool ModuleMap = XValue.consume_back("-module-map"); 2837 // Detect and consume the header indicator. 2838 bool IsHeader = 2839 XValue != "precompiled-header" && XValue.consume_back("-header"); 2840 2841 // If we have c++-{user,system}-header, that indicates a header unit input 2842 // likewise, if the user put -fmodule-header together with a header with an 2843 // absolute path (header-unit-header). 2844 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2845 if (IsHeader || Preprocessed) { 2846 if (XValue.consume_back("-header-unit")) 2847 HUK = InputKind::HeaderUnit_Abs; 2848 else if (XValue.consume_back("-system")) 2849 HUK = InputKind::HeaderUnit_System; 2850 else if (XValue.consume_back("-user")) 2851 HUK = InputKind::HeaderUnit_User; 2852 } 2853 2854 // The value set by this processing is an un-preprocessed source which is 2855 // not intended to be a module map or header unit. 2856 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2857 HUK == InputKind::HeaderUnit_None; 2858 2859 // Principal languages. 2860 DashX = llvm::StringSwitch<InputKind>(XValue) 2861 .Case("c", Language::C) 2862 .Case("cl", Language::OpenCL) 2863 .Case("clcpp", Language::OpenCLCXX) 2864 .Case("cuda", Language::CUDA) 2865 .Case("hip", Language::HIP) 2866 .Case("c++", Language::CXX) 2867 .Case("objective-c", Language::ObjC) 2868 .Case("objective-c++", Language::ObjCXX) 2869 .Case("renderscript", Language::RenderScript) 2870 .Case("hlsl", Language::HLSL) 2871 .Default(Language::Unknown); 2872 2873 // "objc[++]-cpp-output" is an acceptable synonym for 2874 // "objective-c[++]-cpp-output". 2875 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2876 HUK == InputKind::HeaderUnit_None) 2877 DashX = llvm::StringSwitch<InputKind>(XValue) 2878 .Case("objc", Language::ObjC) 2879 .Case("objc++", Language::ObjCXX) 2880 .Default(Language::Unknown); 2881 2882 // Some special cases cannot be combined with suffixes. 2883 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2884 HUK == InputKind::HeaderUnit_None) 2885 DashX = llvm::StringSwitch<InputKind>(XValue) 2886 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2887 .Case("assembler-with-cpp", Language::Asm) 2888 .Cases("ast", "pcm", "precompiled-header", 2889 InputKind(Language::Unknown, InputKind::Precompiled)) 2890 .Case("ir", Language::LLVM_IR) 2891 .Default(Language::Unknown); 2892 2893 if (DashX.isUnknown()) 2894 Diags.Report(diag::err_drv_invalid_value) 2895 << A->getAsString(Args) << A->getValue(); 2896 2897 if (Preprocessed) 2898 DashX = DashX.getPreprocessed(); 2899 // A regular header is considered mutually exclusive with a header unit. 2900 if (HUK != InputKind::HeaderUnit_None) { 2901 DashX = DashX.withHeaderUnit(HUK); 2902 IsHeaderFile = true; 2903 } else if (IsHeaderFile) 2904 DashX = DashX.getHeader(); 2905 if (ModuleMap) 2906 DashX = DashX.withFormat(InputKind::ModuleMap); 2907 } 2908 2909 // '-' is the default input if none is given. 2910 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2911 Opts.Inputs.clear(); 2912 if (Inputs.empty()) 2913 Inputs.push_back("-"); 2914 2915 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2916 Inputs.size() > 1) 2917 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2918 2919 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2920 InputKind IK = DashX; 2921 if (IK.isUnknown()) { 2922 IK = FrontendOptions::getInputKindForExtension( 2923 StringRef(Inputs[i]).rsplit('.').second); 2924 // FIXME: Warn on this? 2925 if (IK.isUnknown()) 2926 IK = Language::C; 2927 // FIXME: Remove this hack. 2928 if (i == 0) 2929 DashX = IK; 2930 } 2931 2932 bool IsSystem = false; 2933 2934 // The -emit-module action implicitly takes a module map. 2935 if (Opts.ProgramAction == frontend::GenerateModule && 2936 IK.getFormat() == InputKind::Source) { 2937 IK = IK.withFormat(InputKind::ModuleMap); 2938 IsSystem = Opts.IsSystemModule; 2939 } 2940 2941 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2942 } 2943 2944 Opts.DashX = DashX; 2945 2946 return Diags.getNumErrors() == NumErrorsBefore; 2947 } 2948 2949 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2950 void *MainAddr) { 2951 std::string ClangExecutable = 2952 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2953 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2954 } 2955 2956 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2957 SmallVectorImpl<const char *> &Args, 2958 CompilerInvocation::StringAllocator SA) { 2959 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2960 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2961 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2962 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2963 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2964 MERGER, EXTRACTOR, TABLE_INDEX) \ 2965 GENERATE_OPTION_WITH_MARSHALLING( \ 2966 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2967 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2968 #include "clang/Driver/Options.inc" 2969 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2970 2971 if (Opts.UseLibcxx) 2972 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2973 2974 if (!Opts.ModuleCachePath.empty()) 2975 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2976 2977 for (const auto &File : Opts.PrebuiltModuleFiles) 2978 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2979 2980 for (const auto &Path : Opts.PrebuiltModulePaths) 2981 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2982 2983 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2984 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2985 2986 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2987 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2988 llvm::Optional<bool> IsFramework, 2989 llvm::Optional<bool> IgnoreSysRoot) { 2990 return llvm::is_contained(Groups, Entry.Group) && 2991 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2992 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2993 }; 2994 2995 auto It = Opts.UserEntries.begin(); 2996 auto End = Opts.UserEntries.end(); 2997 2998 // Add -I..., -F..., and -index-header-map options in order. 2999 for (; It < End && 3000 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 3001 ++It) { 3002 OptSpecifier Opt = [It, Matches]() { 3003 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3004 return OPT_F; 3005 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3006 return OPT_I; 3007 if (Matches(*It, frontend::Angled, true, true)) 3008 return OPT_F; 3009 if (Matches(*It, frontend::Angled, false, true)) 3010 return OPT_I; 3011 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3012 }(); 3013 3014 if (It->Group == frontend::IndexHeaderMap) 3015 GenerateArg(Args, OPT_index_header_map, SA); 3016 GenerateArg(Args, Opt, It->Path, SA); 3017 }; 3018 3019 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3020 // have already been generated as "-I[xx]yy". If that's the case, their 3021 // position on command line was such that this has no semantic impact on 3022 // include paths. 3023 for (; It < End && 3024 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3025 ++It) { 3026 OptSpecifier Opt = 3027 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3028 GenerateArg(Args, Opt, It->Path, SA); 3029 } 3030 3031 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3032 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3033 // command line was such that this has no semantic impact on include paths. 3034 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3035 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3036 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3037 GenerateArg(Args, OPT_iquote, It->Path, SA); 3038 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3039 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3040 It->Path, SA); 3041 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3042 GenerateArg(Args, OPT_iframework, It->Path, SA); 3043 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3044 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3045 3046 // Add the paths for the various language specific isystem flags. 3047 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3048 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3049 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3050 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3051 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3052 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3053 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3054 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3055 3056 // Add the internal paths from a driver that detects standard include paths. 3057 // Note: Some paths that came from "-internal-isystem" arguments may have 3058 // already been generated as "-isystem". If that's the case, their position on 3059 // command line was such that this has no semantic impact on include paths. 3060 for (; It < End && 3061 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3062 ++It) { 3063 OptSpecifier Opt = It->Group == frontend::System 3064 ? OPT_internal_isystem 3065 : OPT_internal_externc_isystem; 3066 GenerateArg(Args, Opt, It->Path, SA); 3067 } 3068 3069 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3070 3071 // Add the path prefixes which are implicitly treated as being system headers. 3072 for (const auto &P : Opts.SystemHeaderPrefixes) { 3073 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3074 : OPT_no_system_header_prefix; 3075 GenerateArg(Args, Opt, P.Prefix, SA); 3076 } 3077 3078 for (const std::string &F : Opts.VFSOverlayFiles) 3079 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3080 } 3081 3082 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3083 DiagnosticsEngine &Diags, 3084 const std::string &WorkingDir) { 3085 unsigned NumErrorsBefore = Diags.getNumErrors(); 3086 3087 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3088 3089 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3090 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3091 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3092 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3093 MERGER, EXTRACTOR, TABLE_INDEX) \ 3094 PARSE_OPTION_WITH_MARSHALLING( \ 3095 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3096 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3097 #include "clang/Driver/Options.inc" 3098 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3099 3100 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3101 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3102 3103 // Canonicalize -fmodules-cache-path before storing it. 3104 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3105 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3106 if (WorkingDir.empty()) 3107 llvm::sys::fs::make_absolute(P); 3108 else 3109 llvm::sys::fs::make_absolute(WorkingDir, P); 3110 } 3111 llvm::sys::path::remove_dots(P); 3112 Opts.ModuleCachePath = std::string(P.str()); 3113 3114 // Only the -fmodule-file=<name>=<file> form. 3115 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3116 StringRef Val = A->getValue(); 3117 if (Val.contains('=')) { 3118 auto Split = Val.split('='); 3119 Opts.PrebuiltModuleFiles.insert( 3120 {std::string(Split.first), std::string(Split.second)}); 3121 } 3122 } 3123 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3124 Opts.AddPrebuiltModulePath(A->getValue()); 3125 3126 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3127 StringRef MacroDef = A->getValue(); 3128 Opts.ModulesIgnoreMacros.insert( 3129 llvm::CachedHashString(MacroDef.split('=').first)); 3130 } 3131 3132 // Add -I..., -F..., and -index-header-map options in order. 3133 bool IsIndexHeaderMap = false; 3134 bool IsSysrootSpecified = 3135 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3136 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3137 if (A->getOption().matches(OPT_index_header_map)) { 3138 // -index-header-map applies to the next -I or -F. 3139 IsIndexHeaderMap = true; 3140 continue; 3141 } 3142 3143 frontend::IncludeDirGroup Group = 3144 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3145 3146 bool IsFramework = A->getOption().matches(OPT_F); 3147 std::string Path = A->getValue(); 3148 3149 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3150 SmallString<32> Buffer; 3151 llvm::sys::path::append(Buffer, Opts.Sysroot, 3152 llvm::StringRef(A->getValue()).substr(1)); 3153 Path = std::string(Buffer.str()); 3154 } 3155 3156 Opts.AddPath(Path, Group, IsFramework, 3157 /*IgnoreSysroot*/ true); 3158 IsIndexHeaderMap = false; 3159 } 3160 3161 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3162 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3163 for (const auto *A : 3164 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3165 if (A->getOption().matches(OPT_iprefix)) 3166 Prefix = A->getValue(); 3167 else if (A->getOption().matches(OPT_iwithprefix)) 3168 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3169 else 3170 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3171 } 3172 3173 for (const auto *A : Args.filtered(OPT_idirafter)) 3174 Opts.AddPath(A->getValue(), frontend::After, false, true); 3175 for (const auto *A : Args.filtered(OPT_iquote)) 3176 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3177 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3178 Opts.AddPath(A->getValue(), frontend::System, false, 3179 !A->getOption().matches(OPT_iwithsysroot)); 3180 for (const auto *A : Args.filtered(OPT_iframework)) 3181 Opts.AddPath(A->getValue(), frontend::System, true, true); 3182 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3183 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3184 /*IgnoreSysRoot=*/false); 3185 3186 // Add the paths for the various language specific isystem flags. 3187 for (const auto *A : Args.filtered(OPT_c_isystem)) 3188 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3189 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3190 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3191 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3192 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3193 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3194 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3195 3196 // Add the internal paths from a driver that detects standard include paths. 3197 for (const auto *A : 3198 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3199 frontend::IncludeDirGroup Group = frontend::System; 3200 if (A->getOption().matches(OPT_internal_externc_isystem)) 3201 Group = frontend::ExternCSystem; 3202 Opts.AddPath(A->getValue(), Group, false, true); 3203 } 3204 3205 // Add the path prefixes which are implicitly treated as being system headers. 3206 for (const auto *A : 3207 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3208 Opts.AddSystemHeaderPrefix( 3209 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3210 3211 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3212 Opts.AddVFSOverlayFile(A->getValue()); 3213 3214 return Diags.getNumErrors() == NumErrorsBefore; 3215 } 3216 3217 /// Check if input file kind and language standard are compatible. 3218 static bool IsInputCompatibleWithStandard(InputKind IK, 3219 const LangStandard &S) { 3220 switch (IK.getLanguage()) { 3221 case Language::Unknown: 3222 case Language::LLVM_IR: 3223 llvm_unreachable("should not parse language flags for this input"); 3224 3225 case Language::C: 3226 case Language::ObjC: 3227 case Language::RenderScript: 3228 return S.getLanguage() == Language::C; 3229 3230 case Language::OpenCL: 3231 return S.getLanguage() == Language::OpenCL || 3232 S.getLanguage() == Language::OpenCLCXX; 3233 3234 case Language::OpenCLCXX: 3235 return S.getLanguage() == Language::OpenCLCXX; 3236 3237 case Language::CXX: 3238 case Language::ObjCXX: 3239 return S.getLanguage() == Language::CXX; 3240 3241 case Language::CUDA: 3242 // FIXME: What -std= values should be permitted for CUDA compilations? 3243 return S.getLanguage() == Language::CUDA || 3244 S.getLanguage() == Language::CXX; 3245 3246 case Language::HIP: 3247 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3248 3249 case Language::Asm: 3250 // Accept (and ignore) all -std= values. 3251 // FIXME: The -std= value is not ignored; it affects the tokenization 3252 // and preprocessing rules if we're preprocessing this asm input. 3253 return true; 3254 3255 case Language::HLSL: 3256 return S.getLanguage() == Language::HLSL; 3257 } 3258 3259 llvm_unreachable("unexpected input language"); 3260 } 3261 3262 /// Get language name for given input kind. 3263 static StringRef GetInputKindName(InputKind IK) { 3264 switch (IK.getLanguage()) { 3265 case Language::C: 3266 return "C"; 3267 case Language::ObjC: 3268 return "Objective-C"; 3269 case Language::CXX: 3270 return "C++"; 3271 case Language::ObjCXX: 3272 return "Objective-C++"; 3273 case Language::OpenCL: 3274 return "OpenCL"; 3275 case Language::OpenCLCXX: 3276 return "C++ for OpenCL"; 3277 case Language::CUDA: 3278 return "CUDA"; 3279 case Language::RenderScript: 3280 return "RenderScript"; 3281 case Language::HIP: 3282 return "HIP"; 3283 3284 case Language::Asm: 3285 return "Asm"; 3286 case Language::LLVM_IR: 3287 return "LLVM IR"; 3288 3289 case Language::HLSL: 3290 return "HLSL"; 3291 3292 case Language::Unknown: 3293 break; 3294 } 3295 llvm_unreachable("unknown input language"); 3296 } 3297 3298 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3299 SmallVectorImpl<const char *> &Args, 3300 StringAllocator SA, 3301 const llvm::Triple &T, InputKind IK) { 3302 if (IK.getFormat() == InputKind::Precompiled || 3303 IK.getLanguage() == Language::LLVM_IR) { 3304 if (Opts.ObjCAutoRefCount) 3305 GenerateArg(Args, OPT_fobjc_arc, SA); 3306 if (Opts.PICLevel != 0) 3307 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3308 if (Opts.PIE) 3309 GenerateArg(Args, OPT_pic_is_pie, SA); 3310 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3311 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3312 3313 return; 3314 } 3315 3316 OptSpecifier StdOpt; 3317 switch (Opts.LangStd) { 3318 case LangStandard::lang_opencl10: 3319 case LangStandard::lang_opencl11: 3320 case LangStandard::lang_opencl12: 3321 case LangStandard::lang_opencl20: 3322 case LangStandard::lang_opencl30: 3323 case LangStandard::lang_openclcpp10: 3324 case LangStandard::lang_openclcpp2021: 3325 StdOpt = OPT_cl_std_EQ; 3326 break; 3327 default: 3328 StdOpt = OPT_std_EQ; 3329 break; 3330 } 3331 3332 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3333 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3334 3335 if (Opts.IncludeDefaultHeader) 3336 GenerateArg(Args, OPT_finclude_default_header, SA); 3337 if (Opts.DeclareOpenCLBuiltins) 3338 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3339 3340 const LangOptions *LangOpts = &Opts; 3341 3342 #define LANG_OPTION_WITH_MARSHALLING( \ 3343 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3344 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3345 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3346 MERGER, EXTRACTOR, TABLE_INDEX) \ 3347 GENERATE_OPTION_WITH_MARSHALLING( \ 3348 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3349 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3350 #include "clang/Driver/Options.inc" 3351 #undef LANG_OPTION_WITH_MARSHALLING 3352 3353 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3354 3355 if (Opts.ObjC) { 3356 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3357 3358 if (Opts.GC == LangOptions::GCOnly) 3359 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3360 else if (Opts.GC == LangOptions::HybridGC) 3361 GenerateArg(Args, OPT_fobjc_gc, SA); 3362 else if (Opts.ObjCAutoRefCount == 1) 3363 GenerateArg(Args, OPT_fobjc_arc, SA); 3364 3365 if (Opts.ObjCWeakRuntime) 3366 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3367 3368 if (Opts.ObjCWeak) 3369 GenerateArg(Args, OPT_fobjc_weak, SA); 3370 3371 if (Opts.ObjCSubscriptingLegacyRuntime) 3372 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3373 } 3374 3375 if (Opts.GNUCVersion != 0) { 3376 unsigned Major = Opts.GNUCVersion / 100 / 100; 3377 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3378 unsigned Patch = Opts.GNUCVersion % 100; 3379 GenerateArg(Args, OPT_fgnuc_version_EQ, 3380 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3381 } 3382 3383 if (Opts.IgnoreXCOFFVisibility) 3384 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3385 3386 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3387 GenerateArg(Args, OPT_ftrapv, SA); 3388 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3389 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3390 GenerateArg(Args, OPT_fwrapv, SA); 3391 } 3392 3393 if (Opts.MSCompatibilityVersion != 0) { 3394 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3395 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3396 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3397 GenerateArg(Args, OPT_fms_compatibility_version, 3398 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3399 } 3400 3401 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3402 if (!Opts.Trigraphs) 3403 GenerateArg(Args, OPT_fno_trigraphs, SA); 3404 } else { 3405 if (Opts.Trigraphs) 3406 GenerateArg(Args, OPT_ftrigraphs, SA); 3407 } 3408 3409 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3410 GenerateArg(Args, OPT_fblocks, SA); 3411 3412 if (Opts.ConvergentFunctions && 3413 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3414 GenerateArg(Args, OPT_fconvergent_functions, SA); 3415 3416 if (Opts.NoBuiltin && !Opts.Freestanding) 3417 GenerateArg(Args, OPT_fno_builtin, SA); 3418 3419 if (!Opts.NoBuiltin) 3420 for (const auto &Func : Opts.NoBuiltinFuncs) 3421 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3422 3423 if (Opts.LongDoubleSize == 128) 3424 GenerateArg(Args, OPT_mlong_double_128, SA); 3425 else if (Opts.LongDoubleSize == 64) 3426 GenerateArg(Args, OPT_mlong_double_64, SA); 3427 else if (Opts.LongDoubleSize == 80) 3428 GenerateArg(Args, OPT_mlong_double_80, SA); 3429 3430 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3431 3432 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3433 // '-fopenmp-targets='. 3434 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3435 GenerateArg(Args, OPT_fopenmp, SA); 3436 3437 if (Opts.OpenMP != 50) 3438 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3439 3440 if (!Opts.OpenMPUseTLS) 3441 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3442 3443 if (Opts.OpenMPIsDevice) 3444 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3445 3446 if (Opts.OpenMPIRBuilder) 3447 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3448 } 3449 3450 if (Opts.OpenMPSimd) { 3451 GenerateArg(Args, OPT_fopenmp_simd, SA); 3452 3453 if (Opts.OpenMP != 50) 3454 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3455 } 3456 3457 if (Opts.OpenMPThreadSubscription) 3458 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3459 3460 if (Opts.OpenMPTeamSubscription) 3461 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3462 3463 if (Opts.OpenMPTargetDebug != 0) 3464 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3465 Twine(Opts.OpenMPTargetDebug), SA); 3466 3467 if (Opts.OpenMPCUDANumSMs != 0) 3468 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3469 Twine(Opts.OpenMPCUDANumSMs), SA); 3470 3471 if (Opts.OpenMPCUDABlocksPerSM != 0) 3472 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3473 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3474 3475 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3476 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3477 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3478 3479 if (!Opts.OMPTargetTriples.empty()) { 3480 std::string Targets; 3481 llvm::raw_string_ostream OS(Targets); 3482 llvm::interleave( 3483 Opts.OMPTargetTriples, OS, 3484 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3485 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3486 } 3487 3488 if (!Opts.OMPHostIRFile.empty()) 3489 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3490 3491 if (Opts.OpenMPCUDAMode) 3492 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3493 3494 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3495 // generated from CodeGenOptions. 3496 3497 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3498 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3499 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3500 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3501 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3502 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3503 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3504 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3505 3506 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3507 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3508 3509 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3510 for (const std::string &F : Opts.NoSanitizeFiles) 3511 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3512 3513 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3514 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3515 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3516 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3517 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3518 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3519 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3520 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3521 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3522 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3523 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3524 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3525 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3526 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3527 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3528 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3529 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3530 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3531 3532 if (Opts.getSignReturnAddressScope() == 3533 LangOptions::SignReturnAddressScopeKind::All) 3534 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3535 else if (Opts.getSignReturnAddressScope() == 3536 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3537 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3538 3539 if (Opts.getSignReturnAddressKey() == 3540 LangOptions::SignReturnAddressKeyKind::BKey) 3541 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3542 3543 if (Opts.CXXABI) 3544 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3545 SA); 3546 3547 if (Opts.RelativeCXXABIVTables) 3548 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3549 else 3550 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3551 3552 if (Opts.UseTargetPathSeparator) 3553 GenerateArg(Args, OPT_ffile_reproducible, SA); 3554 else 3555 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3556 3557 for (const auto &MP : Opts.MacroPrefixMap) 3558 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3559 3560 if (!Opts.RandstructSeed.empty()) 3561 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3562 } 3563 3564 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3565 InputKind IK, const llvm::Triple &T, 3566 std::vector<std::string> &Includes, 3567 DiagnosticsEngine &Diags) { 3568 unsigned NumErrorsBefore = Diags.getNumErrors(); 3569 3570 if (IK.getFormat() == InputKind::Precompiled || 3571 IK.getLanguage() == Language::LLVM_IR) { 3572 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3573 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3574 // what the input type is. 3575 if (Args.hasArg(OPT_fobjc_arc)) 3576 Opts.ObjCAutoRefCount = 1; 3577 // PICLevel and PIELevel are needed during code generation and this should 3578 // be set regardless of the input type. 3579 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3580 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3581 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3582 Diags, Opts.Sanitize); 3583 3584 return Diags.getNumErrors() == NumErrorsBefore; 3585 } 3586 3587 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3588 // FIXME: Should we really be parsing this for an Language::Asm input? 3589 3590 // FIXME: Cleanup per-file based stuff. 3591 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3592 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3593 LangStd = LangStandard::getLangKind(A->getValue()); 3594 if (LangStd == LangStandard::lang_unspecified) { 3595 Diags.Report(diag::err_drv_invalid_value) 3596 << A->getAsString(Args) << A->getValue(); 3597 // Report supported standards with short description. 3598 for (unsigned KindValue = 0; 3599 KindValue != LangStandard::lang_unspecified; 3600 ++KindValue) { 3601 const LangStandard &Std = LangStandard::getLangStandardForKind( 3602 static_cast<LangStandard::Kind>(KindValue)); 3603 if (IsInputCompatibleWithStandard(IK, Std)) { 3604 auto Diag = Diags.Report(diag::note_drv_use_standard); 3605 Diag << Std.getName() << Std.getDescription(); 3606 unsigned NumAliases = 0; 3607 #define LANGSTANDARD(id, name, lang, desc, features) 3608 #define LANGSTANDARD_ALIAS(id, alias) \ 3609 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3610 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3611 #include "clang/Basic/LangStandards.def" 3612 Diag << NumAliases; 3613 #define LANGSTANDARD(id, name, lang, desc, features) 3614 #define LANGSTANDARD_ALIAS(id, alias) \ 3615 if (KindValue == LangStandard::lang_##id) Diag << alias; 3616 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3617 #include "clang/Basic/LangStandards.def" 3618 } 3619 } 3620 } else { 3621 // Valid standard, check to make sure language and standard are 3622 // compatible. 3623 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3624 if (!IsInputCompatibleWithStandard(IK, Std)) { 3625 Diags.Report(diag::err_drv_argument_not_allowed_with) 3626 << A->getAsString(Args) << GetInputKindName(IK); 3627 } 3628 } 3629 } 3630 3631 // -cl-std only applies for OpenCL language standards. 3632 // Override the -std option in this case. 3633 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3634 LangStandard::Kind OpenCLLangStd 3635 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3636 .Cases("cl", "CL", LangStandard::lang_opencl10) 3637 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3638 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3639 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3640 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3641 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3642 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3643 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3644 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3645 .Default(LangStandard::lang_unspecified); 3646 3647 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3648 Diags.Report(diag::err_drv_invalid_value) 3649 << A->getAsString(Args) << A->getValue(); 3650 } 3651 else 3652 LangStd = OpenCLLangStd; 3653 } 3654 3655 // These need to be parsed now. They are used to set OpenCL defaults. 3656 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3657 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3658 3659 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3660 3661 // The key paths of codegen options defined in Options.td start with 3662 // "LangOpts->". Let's provide the expected variable name and type. 3663 LangOptions *LangOpts = &Opts; 3664 3665 #define LANG_OPTION_WITH_MARSHALLING( \ 3666 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3667 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3668 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3669 MERGER, EXTRACTOR, TABLE_INDEX) \ 3670 PARSE_OPTION_WITH_MARSHALLING( \ 3671 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3672 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3673 #include "clang/Driver/Options.inc" 3674 #undef LANG_OPTION_WITH_MARSHALLING 3675 3676 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3677 StringRef Name = A->getValue(); 3678 if (Name == "full" || Name == "branch") { 3679 Opts.CFProtectionBranch = 1; 3680 } 3681 } 3682 3683 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3684 !Args.hasArg(OPT_sycl_std_EQ)) { 3685 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3686 // provide -sycl-std=, we want to default it to whatever the default SYCL 3687 // version is. I could not find a way to express this with the options 3688 // tablegen because we still want this value to be SYCL_None when the user 3689 // is not in device or host mode. 3690 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3691 } 3692 3693 if (Opts.ObjC) { 3694 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3695 StringRef value = arg->getValue(); 3696 if (Opts.ObjCRuntime.tryParse(value)) 3697 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3698 } 3699 3700 if (Args.hasArg(OPT_fobjc_gc_only)) 3701 Opts.setGC(LangOptions::GCOnly); 3702 else if (Args.hasArg(OPT_fobjc_gc)) 3703 Opts.setGC(LangOptions::HybridGC); 3704 else if (Args.hasArg(OPT_fobjc_arc)) { 3705 Opts.ObjCAutoRefCount = 1; 3706 if (!Opts.ObjCRuntime.allowsARC()) 3707 Diags.Report(diag::err_arc_unsupported_on_runtime); 3708 } 3709 3710 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3711 // whether the feature is actually enabled. This is predominantly 3712 // determined by -fobjc-runtime, but we allow it to be overridden 3713 // from the command line for testing purposes. 3714 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3715 Opts.ObjCWeakRuntime = 1; 3716 else 3717 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3718 3719 // ObjCWeak determines whether __weak is actually enabled. 3720 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3721 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3722 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3723 assert(!Opts.ObjCWeak); 3724 } else if (Opts.getGC() != LangOptions::NonGC) { 3725 Diags.Report(diag::err_objc_weak_with_gc); 3726 } else if (!Opts.ObjCWeakRuntime) { 3727 Diags.Report(diag::err_objc_weak_unsupported); 3728 } else { 3729 Opts.ObjCWeak = 1; 3730 } 3731 } else if (Opts.ObjCAutoRefCount) { 3732 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3733 } 3734 3735 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3736 Opts.ObjCSubscriptingLegacyRuntime = 3737 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3738 } 3739 3740 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3741 // Check that the version has 1 to 3 components and the minor and patch 3742 // versions fit in two decimal digits. 3743 VersionTuple GNUCVer; 3744 bool Invalid = GNUCVer.tryParse(A->getValue()); 3745 unsigned Major = GNUCVer.getMajor(); 3746 unsigned Minor = GNUCVer.getMinor().value_or(0); 3747 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3748 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3749 Diags.Report(diag::err_drv_invalid_value) 3750 << A->getAsString(Args) << A->getValue(); 3751 } 3752 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3753 } 3754 3755 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3756 Opts.IgnoreXCOFFVisibility = 1; 3757 3758 if (Args.hasArg(OPT_ftrapv)) { 3759 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3760 // Set the handler, if one is specified. 3761 Opts.OverflowHandler = 3762 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3763 } 3764 else if (Args.hasArg(OPT_fwrapv)) 3765 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3766 3767 Opts.MSCompatibilityVersion = 0; 3768 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3769 VersionTuple VT; 3770 if (VT.tryParse(A->getValue())) 3771 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3772 << A->getValue(); 3773 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3774 VT.getMinor().value_or(0) * 100000 + 3775 VT.getSubminor().value_or(0); 3776 } 3777 3778 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3779 // is specified, or -std is set to a conforming mode. 3780 // Trigraphs are disabled by default in c++1z onwards. 3781 // For z/OS, trigraphs are enabled by default (without regard to the above). 3782 Opts.Trigraphs = 3783 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3784 Opts.Trigraphs = 3785 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3786 3787 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3788 && Opts.OpenCLVersion == 200); 3789 3790 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3791 Opts.SYCLIsDevice || 3792 Args.hasArg(OPT_fconvergent_functions); 3793 3794 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3795 if (!Opts.NoBuiltin) 3796 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3797 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3798 if (A->getOption().matches(options::OPT_mlong_double_64)) 3799 Opts.LongDoubleSize = 64; 3800 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3801 Opts.LongDoubleSize = 80; 3802 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3803 Opts.LongDoubleSize = 128; 3804 else 3805 Opts.LongDoubleSize = 0; 3806 } 3807 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3808 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3809 3810 llvm::sort(Opts.ModuleFeatures); 3811 3812 // -mrtd option 3813 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3814 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3815 Diags.Report(diag::err_drv_argument_not_allowed_with) 3816 << A->getSpelling() << "-fdefault-calling-conv"; 3817 else { 3818 if (T.getArch() != llvm::Triple::x86) 3819 Diags.Report(diag::err_drv_argument_not_allowed_with) 3820 << A->getSpelling() << T.getTriple(); 3821 else 3822 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3823 } 3824 } 3825 3826 // Check if -fopenmp is specified and set default version to 5.0. 3827 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3828 // Check if -fopenmp-simd is specified. 3829 bool IsSimdSpecified = 3830 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3831 /*Default=*/false); 3832 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3833 Opts.OpenMPUseTLS = 3834 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3835 Opts.OpenMPIsDevice = 3836 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3837 Opts.OpenMPIRBuilder = 3838 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3839 bool IsTargetSpecified = 3840 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3841 3842 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3843 3844 if (Opts.OpenMP || Opts.OpenMPSimd) { 3845 if (int Version = getLastArgIntValue( 3846 Args, OPT_fopenmp_version_EQ, 3847 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3848 Opts.OpenMP = Version; 3849 // Provide diagnostic when a given target is not expected to be an OpenMP 3850 // device or host. 3851 if (!Opts.OpenMPIsDevice) { 3852 switch (T.getArch()) { 3853 default: 3854 break; 3855 // Add unsupported host targets here: 3856 case llvm::Triple::nvptx: 3857 case llvm::Triple::nvptx64: 3858 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3859 break; 3860 } 3861 } 3862 } 3863 3864 // Set the flag to prevent the implementation from emitting device exception 3865 // handling code for those requiring so. 3866 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3867 Opts.OpenCLCPlusPlus) { 3868 3869 Opts.Exceptions = 0; 3870 Opts.CXXExceptions = 0; 3871 } 3872 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3873 Opts.OpenMPCUDANumSMs = 3874 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3875 Opts.OpenMPCUDANumSMs, Diags); 3876 Opts.OpenMPCUDABlocksPerSM = 3877 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3878 Opts.OpenMPCUDABlocksPerSM, Diags); 3879 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3880 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3881 Opts.OpenMPCUDAReductionBufNum, Diags); 3882 } 3883 3884 // Set the value of the debugging flag used in the new offloading device RTL. 3885 // Set either by a specific value or to a default if not specified. 3886 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3887 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3888 Opts.OpenMPTargetDebug = getLastArgIntValue( 3889 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3890 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3891 Opts.OpenMPTargetDebug = 1; 3892 } 3893 3894 if (Opts.OpenMPIsDevice) { 3895 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3896 Opts.OpenMPTeamSubscription = true; 3897 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3898 Opts.OpenMPThreadSubscription = true; 3899 } 3900 3901 // Get the OpenMP target triples if any. 3902 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3903 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3904 auto getArchPtrSize = [](const llvm::Triple &T) { 3905 if (T.isArch16Bit()) 3906 return Arch16Bit; 3907 if (T.isArch32Bit()) 3908 return Arch32Bit; 3909 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3910 return Arch64Bit; 3911 }; 3912 3913 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3914 llvm::Triple TT(A->getValue(i)); 3915 3916 if (TT.getArch() == llvm::Triple::UnknownArch || 3917 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3918 TT.getArch() == llvm::Triple::nvptx || 3919 TT.getArch() == llvm::Triple::nvptx64 || 3920 TT.getArch() == llvm::Triple::amdgcn || 3921 TT.getArch() == llvm::Triple::x86 || 3922 TT.getArch() == llvm::Triple::x86_64)) 3923 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3924 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3925 Diags.Report(diag::err_drv_incompatible_omp_arch) 3926 << A->getValue(i) << T.str(); 3927 else 3928 Opts.OMPTargetTriples.push_back(TT); 3929 } 3930 } 3931 3932 // Get OpenMP host file path if any and report if a non existent file is 3933 // found 3934 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3935 Opts.OMPHostIRFile = A->getValue(); 3936 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3937 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3938 << Opts.OMPHostIRFile; 3939 } 3940 3941 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3942 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3943 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3944 3945 // FIXME: Eliminate this dependency. 3946 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3947 OptSize = getOptimizationLevelSize(Args); 3948 Opts.Optimize = Opt != 0; 3949 Opts.OptimizeSize = OptSize != 0; 3950 3951 // This is the __NO_INLINE__ define, which just depends on things like the 3952 // optimization level and -fno-inline, not actually whether the backend has 3953 // inlining enabled. 3954 Opts.NoInlineDefine = !Opts.Optimize; 3955 if (Arg *InlineArg = Args.getLastArg( 3956 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3957 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3958 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3959 Opts.NoInlineDefine = true; 3960 3961 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3962 StringRef Val = A->getValue(); 3963 if (Val == "fast") 3964 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3965 else if (Val == "on") 3966 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3967 else if (Val == "off") 3968 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3969 else if (Val == "fast-honor-pragmas") 3970 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3971 else 3972 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3973 } 3974 3975 // Parse -fsanitize= arguments. 3976 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3977 Diags, Opts.Sanitize); 3978 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3979 std::vector<std::string> systemIgnorelists = 3980 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3981 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3982 systemIgnorelists.begin(), 3983 systemIgnorelists.end()); 3984 3985 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3986 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3987 3988 StringRef Ver = A->getValue(); 3989 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3990 unsigned Major, Minor = 0; 3991 3992 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3993 // y or y.0 (4 <= y <= current version). 3994 if (!VerParts.first.startswith("0") && 3995 !VerParts.first.getAsInteger(10, Major) && 3996 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3997 (Major == 3 ? VerParts.second.size() == 1 && 3998 !VerParts.second.getAsInteger(10, Minor) 3999 : VerParts.first.size() == Ver.size() || 4000 VerParts.second == "0")) { 4001 // Got a valid version number. 4002 if (Major == 3 && Minor <= 8) 4003 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4004 else if (Major <= 4) 4005 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4006 else if (Major <= 6) 4007 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4008 else if (Major <= 7) 4009 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4010 else if (Major <= 9) 4011 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4012 else if (Major <= 11) 4013 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4014 else if (Major <= 12) 4015 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4016 else if (Major <= 14) 4017 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4018 else if (Major <= 15) 4019 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4020 } else if (Ver != "latest") { 4021 Diags.Report(diag::err_drv_invalid_value) 4022 << A->getAsString(Args) << A->getValue(); 4023 } 4024 } 4025 4026 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4027 StringRef SignScope = A->getValue(); 4028 4029 if (SignScope.equals_insensitive("none")) 4030 Opts.setSignReturnAddressScope( 4031 LangOptions::SignReturnAddressScopeKind::None); 4032 else if (SignScope.equals_insensitive("all")) 4033 Opts.setSignReturnAddressScope( 4034 LangOptions::SignReturnAddressScopeKind::All); 4035 else if (SignScope.equals_insensitive("non-leaf")) 4036 Opts.setSignReturnAddressScope( 4037 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4038 else 4039 Diags.Report(diag::err_drv_invalid_value) 4040 << A->getAsString(Args) << SignScope; 4041 4042 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4043 StringRef SignKey = A->getValue(); 4044 if (!SignScope.empty() && !SignKey.empty()) { 4045 if (SignKey.equals_insensitive("a_key")) 4046 Opts.setSignReturnAddressKey( 4047 LangOptions::SignReturnAddressKeyKind::AKey); 4048 else if (SignKey.equals_insensitive("b_key")) 4049 Opts.setSignReturnAddressKey( 4050 LangOptions::SignReturnAddressKeyKind::BKey); 4051 else 4052 Diags.Report(diag::err_drv_invalid_value) 4053 << A->getAsString(Args) << SignKey; 4054 } 4055 } 4056 } 4057 4058 // The value can be empty, which indicates the system default should be used. 4059 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4060 if (!CXXABI.empty()) { 4061 if (!TargetCXXABI::isABI(CXXABI)) { 4062 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4063 } else { 4064 auto Kind = TargetCXXABI::getKind(CXXABI); 4065 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4066 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4067 else 4068 Opts.CXXABI = Kind; 4069 } 4070 } 4071 4072 Opts.RelativeCXXABIVTables = 4073 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4074 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4075 TargetCXXABI::usesRelativeVTables(T)); 4076 4077 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4078 auto Split = StringRef(A).split('='); 4079 Opts.MacroPrefixMap.insert( 4080 {std::string(Split.first), std::string(Split.second)}); 4081 } 4082 4083 Opts.UseTargetPathSeparator = 4084 !Args.getLastArg(OPT_fno_file_reproducible) && 4085 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4086 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4087 Args.getLastArg(OPT_ffile_reproducible)); 4088 4089 // Error if -mvscale-min is unbounded. 4090 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4091 unsigned VScaleMin; 4092 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4093 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4094 } 4095 4096 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4097 std::ifstream SeedFile(A->getValue(0)); 4098 4099 if (!SeedFile.is_open()) 4100 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4101 << A->getValue(0); 4102 4103 std::getline(SeedFile, Opts.RandstructSeed); 4104 } 4105 4106 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4107 Opts.RandstructSeed = A->getValue(0); 4108 4109 // Validate options for HLSL 4110 if (Opts.HLSL) { 4111 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4112 T.getOS() == llvm::Triple::ShaderModel; 4113 if (!SupportedTarget) 4114 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4115 } 4116 4117 return Diags.getNumErrors() == NumErrorsBefore; 4118 } 4119 4120 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4121 switch (Action) { 4122 case frontend::ASTDeclList: 4123 case frontend::ASTDump: 4124 case frontend::ASTPrint: 4125 case frontend::ASTView: 4126 case frontend::EmitAssembly: 4127 case frontend::EmitBC: 4128 case frontend::EmitHTML: 4129 case frontend::EmitLLVM: 4130 case frontend::EmitLLVMOnly: 4131 case frontend::EmitCodeGenOnly: 4132 case frontend::EmitObj: 4133 case frontend::ExtractAPI: 4134 case frontend::FixIt: 4135 case frontend::GenerateModule: 4136 case frontend::GenerateModuleInterface: 4137 case frontend::GenerateHeaderUnit: 4138 case frontend::GeneratePCH: 4139 case frontend::GenerateInterfaceStubs: 4140 case frontend::ParseSyntaxOnly: 4141 case frontend::ModuleFileInfo: 4142 case frontend::VerifyPCH: 4143 case frontend::PluginAction: 4144 case frontend::RewriteObjC: 4145 case frontend::RewriteTest: 4146 case frontend::RunAnalysis: 4147 case frontend::TemplightDump: 4148 case frontend::MigrateSource: 4149 return false; 4150 4151 case frontend::DumpCompilerOptions: 4152 case frontend::DumpRawTokens: 4153 case frontend::DumpTokens: 4154 case frontend::InitOnly: 4155 case frontend::PrintPreamble: 4156 case frontend::PrintPreprocessedInput: 4157 case frontend::RewriteMacros: 4158 case frontend::RunPreprocessorOnly: 4159 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4160 return true; 4161 } 4162 llvm_unreachable("invalid frontend action"); 4163 } 4164 4165 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4166 SmallVectorImpl<const char *> &Args, 4167 CompilerInvocation::StringAllocator SA, 4168 const LangOptions &LangOpts, 4169 const FrontendOptions &FrontendOpts, 4170 const CodeGenOptions &CodeGenOpts) { 4171 PreprocessorOptions *PreprocessorOpts = &Opts; 4172 4173 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4174 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4175 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4176 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4177 MERGER, EXTRACTOR, TABLE_INDEX) \ 4178 GENERATE_OPTION_WITH_MARSHALLING( \ 4179 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4180 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4181 #include "clang/Driver/Options.inc" 4182 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4183 4184 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4185 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4186 4187 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4188 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4189 4190 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4191 GenerateArg(Args, OPT_preamble_bytes_EQ, 4192 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4193 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4194 SA); 4195 4196 for (const auto &M : Opts.Macros) { 4197 // Don't generate __CET__ macro definitions. They are implied by the 4198 // -fcf-protection option that is generated elsewhere. 4199 if (M.first == "__CET__=1" && !M.second && 4200 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4201 continue; 4202 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4203 !CodeGenOpts.CFProtectionBranch) 4204 continue; 4205 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4206 CodeGenOpts.CFProtectionBranch) 4207 continue; 4208 4209 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4210 } 4211 4212 for (const auto &I : Opts.Includes) { 4213 // Don't generate OpenCL includes. They are implied by other flags that are 4214 // generated elsewhere. 4215 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4216 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4217 I == "opencl-c.h")) 4218 continue; 4219 // Don't generate HLSL includes. They are implied by other flags that are 4220 // generated elsewhere. 4221 if (LangOpts.HLSL && I == "hlsl.h") 4222 continue; 4223 4224 GenerateArg(Args, OPT_include, I, SA); 4225 } 4226 4227 for (const auto &CI : Opts.ChainedIncludes) 4228 GenerateArg(Args, OPT_chain_include, CI, SA); 4229 4230 for (const auto &RF : Opts.RemappedFiles) 4231 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4232 4233 if (Opts.SourceDateEpoch) 4234 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4235 4236 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4237 // generated elsewhere. 4238 } 4239 4240 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4241 DiagnosticsEngine &Diags, 4242 frontend::ActionKind Action, 4243 const FrontendOptions &FrontendOpts) { 4244 unsigned NumErrorsBefore = Diags.getNumErrors(); 4245 4246 PreprocessorOptions *PreprocessorOpts = &Opts; 4247 4248 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4249 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4250 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4251 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4252 MERGER, EXTRACTOR, TABLE_INDEX) \ 4253 PARSE_OPTION_WITH_MARSHALLING( \ 4254 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4255 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4256 #include "clang/Driver/Options.inc" 4257 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4258 4259 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4260 Args.hasArg(OPT_pch_through_hdrstop_use); 4261 4262 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4263 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4264 4265 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4266 StringRef Value(A->getValue()); 4267 size_t Comma = Value.find(','); 4268 unsigned Bytes = 0; 4269 unsigned EndOfLine = 0; 4270 4271 if (Comma == StringRef::npos || 4272 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4273 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4274 Diags.Report(diag::err_drv_preamble_format); 4275 else { 4276 Opts.PrecompiledPreambleBytes.first = Bytes; 4277 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4278 } 4279 } 4280 4281 // Add the __CET__ macro if a CFProtection option is set. 4282 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4283 StringRef Name = A->getValue(); 4284 if (Name == "branch") 4285 Opts.addMacroDef("__CET__=1"); 4286 else if (Name == "return") 4287 Opts.addMacroDef("__CET__=2"); 4288 else if (Name == "full") 4289 Opts.addMacroDef("__CET__=3"); 4290 } 4291 4292 // Add macros from the command line. 4293 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4294 if (A->getOption().matches(OPT_D)) 4295 Opts.addMacroDef(A->getValue()); 4296 else 4297 Opts.addMacroUndef(A->getValue()); 4298 } 4299 4300 // Add the ordered list of -includes. 4301 for (const auto *A : Args.filtered(OPT_include)) 4302 Opts.Includes.emplace_back(A->getValue()); 4303 4304 for (const auto *A : Args.filtered(OPT_chain_include)) 4305 Opts.ChainedIncludes.emplace_back(A->getValue()); 4306 4307 for (const auto *A : Args.filtered(OPT_remap_file)) { 4308 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4309 4310 if (Split.second.empty()) { 4311 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4312 continue; 4313 } 4314 4315 Opts.addRemappedFile(Split.first, Split.second); 4316 } 4317 4318 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4319 StringRef Epoch = A->getValue(); 4320 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4321 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4322 // 9999-12-31T23:59:59Z) as the upper bound. 4323 const uint64_t MaxTimestamp = 4324 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4325 uint64_t V; 4326 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4327 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4328 << Epoch << MaxTimestamp; 4329 } else { 4330 Opts.SourceDateEpoch = V; 4331 } 4332 } 4333 4334 // Always avoid lexing editor placeholders when we're just running the 4335 // preprocessor as we never want to emit the 4336 // "editor placeholder in source file" error in PP only mode. 4337 if (isStrictlyPreprocessorAction(Action)) 4338 Opts.LexEditorPlaceholders = false; 4339 4340 return Diags.getNumErrors() == NumErrorsBefore; 4341 } 4342 4343 static void GeneratePreprocessorOutputArgs( 4344 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4345 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4346 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4347 4348 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4349 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4350 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4351 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4352 MERGER, EXTRACTOR, TABLE_INDEX) \ 4353 GENERATE_OPTION_WITH_MARSHALLING( \ 4354 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4355 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4356 #include "clang/Driver/Options.inc" 4357 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4358 4359 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4360 if (Generate_dM) 4361 GenerateArg(Args, OPT_dM, SA); 4362 if (!Generate_dM && Opts.ShowMacros) 4363 GenerateArg(Args, OPT_dD, SA); 4364 if (Opts.DirectivesOnly) 4365 GenerateArg(Args, OPT_fdirectives_only, SA); 4366 } 4367 4368 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4369 ArgList &Args, DiagnosticsEngine &Diags, 4370 frontend::ActionKind Action) { 4371 unsigned NumErrorsBefore = Diags.getNumErrors(); 4372 4373 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4374 4375 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4376 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4377 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4378 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4379 MERGER, EXTRACTOR, TABLE_INDEX) \ 4380 PARSE_OPTION_WITH_MARSHALLING( \ 4381 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4382 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4383 #include "clang/Driver/Options.inc" 4384 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4385 4386 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4387 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4388 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4389 4390 return Diags.getNumErrors() == NumErrorsBefore; 4391 } 4392 4393 static void GenerateTargetArgs(const TargetOptions &Opts, 4394 SmallVectorImpl<const char *> &Args, 4395 CompilerInvocation::StringAllocator SA) { 4396 const TargetOptions *TargetOpts = &Opts; 4397 #define TARGET_OPTION_WITH_MARSHALLING( \ 4398 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4399 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4400 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4401 MERGER, EXTRACTOR, TABLE_INDEX) \ 4402 GENERATE_OPTION_WITH_MARSHALLING( \ 4403 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4404 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4405 #include "clang/Driver/Options.inc" 4406 #undef TARGET_OPTION_WITH_MARSHALLING 4407 4408 if (!Opts.SDKVersion.empty()) 4409 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4410 SA); 4411 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4412 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4413 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4414 } 4415 4416 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4417 DiagnosticsEngine &Diags) { 4418 unsigned NumErrorsBefore = Diags.getNumErrors(); 4419 4420 TargetOptions *TargetOpts = &Opts; 4421 4422 #define TARGET_OPTION_WITH_MARSHALLING( \ 4423 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4424 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4425 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4426 MERGER, EXTRACTOR, TABLE_INDEX) \ 4427 PARSE_OPTION_WITH_MARSHALLING( \ 4428 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4429 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4430 #include "clang/Driver/Options.inc" 4431 #undef TARGET_OPTION_WITH_MARSHALLING 4432 4433 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4434 llvm::VersionTuple Version; 4435 if (Version.tryParse(A->getValue())) 4436 Diags.Report(diag::err_drv_invalid_value) 4437 << A->getAsString(Args) << A->getValue(); 4438 else 4439 Opts.SDKVersion = Version; 4440 } 4441 if (Arg *A = 4442 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4443 llvm::VersionTuple Version; 4444 if (Version.tryParse(A->getValue())) 4445 Diags.Report(diag::err_drv_invalid_value) 4446 << A->getAsString(Args) << A->getValue(); 4447 else 4448 Opts.DarwinTargetVariantSDKVersion = Version; 4449 } 4450 4451 return Diags.getNumErrors() == NumErrorsBefore; 4452 } 4453 4454 bool CompilerInvocation::CreateFromArgsImpl( 4455 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4456 DiagnosticsEngine &Diags, const char *Argv0) { 4457 unsigned NumErrorsBefore = Diags.getNumErrors(); 4458 4459 // Parse the arguments. 4460 const OptTable &Opts = getDriverOptTable(); 4461 const unsigned IncludedFlagsBitmask = options::CC1Option; 4462 unsigned MissingArgIndex, MissingArgCount; 4463 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4464 MissingArgCount, IncludedFlagsBitmask); 4465 LangOptions &LangOpts = *Res.getLangOpts(); 4466 4467 // Check for missing argument error. 4468 if (MissingArgCount) 4469 Diags.Report(diag::err_drv_missing_argument) 4470 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4471 4472 // Issue errors on unknown arguments. 4473 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4474 auto ArgString = A->getAsString(Args); 4475 std::string Nearest; 4476 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4477 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4478 else 4479 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4480 << ArgString << Nearest; 4481 } 4482 4483 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4484 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4485 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4486 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4487 /*DefaultDiagColor=*/false); 4488 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4489 // FIXME: We shouldn't have to pass the DashX option around here 4490 InputKind DashX = Res.getFrontendOpts().DashX; 4491 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4492 llvm::Triple T(Res.getTargetOpts().Triple); 4493 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4494 Res.getFileSystemOpts().WorkingDir); 4495 4496 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4497 Diags); 4498 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4499 LangOpts.ObjCExceptions = 1; 4500 4501 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4502 if (Warning == "misexpect" && 4503 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4504 Res.getCodeGenOpts().MisExpect = true; 4505 } 4506 } 4507 4508 if (LangOpts.CUDA) { 4509 // During CUDA device-side compilation, the aux triple is the 4510 // triple used for host compilation. 4511 if (LangOpts.CUDAIsDevice) 4512 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4513 } 4514 4515 // Set the triple of the host for OpenMP device compile. 4516 if (LangOpts.OpenMPIsDevice) 4517 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4518 4519 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4520 Res.getFrontendOpts().OutputFile, LangOpts); 4521 4522 // FIXME: Override value name discarding when asan or msan is used because the 4523 // backend passes depend on the name of the alloca in order to print out 4524 // names. 4525 Res.getCodeGenOpts().DiscardValueNames &= 4526 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4527 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4528 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4529 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4530 4531 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4532 Res.getFrontendOpts().ProgramAction, 4533 Res.getFrontendOpts()); 4534 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4535 Res.getFrontendOpts().ProgramAction); 4536 4537 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4538 Res.getFrontendOpts().ProgramAction, 4539 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4540 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4541 Res.getDependencyOutputOpts().Targets.empty()) 4542 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4543 4544 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4545 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4546 !Res.getLangOpts()->Sanitize.empty()) { 4547 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4548 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4549 } 4550 4551 // Store the command-line for using in the CodeView backend. 4552 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4553 Res.getCodeGenOpts().Argv0 = Argv0; 4554 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4555 } 4556 4557 FixupInvocation(Res, Diags, Args, DashX); 4558 4559 return Diags.getNumErrors() == NumErrorsBefore; 4560 } 4561 4562 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4563 ArrayRef<const char *> CommandLineArgs, 4564 DiagnosticsEngine &Diags, 4565 const char *Argv0) { 4566 CompilerInvocation DummyInvocation; 4567 4568 return RoundTrip( 4569 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4570 DiagnosticsEngine &Diags, const char *Argv0) { 4571 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4572 }, 4573 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4574 StringAllocator SA) { 4575 Args.push_back("-cc1"); 4576 Invocation.generateCC1CommandLine(Args, SA); 4577 }, 4578 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4579 } 4580 4581 std::string CompilerInvocation::getModuleHash() const { 4582 // FIXME: Consider using SHA1 instead of MD5. 4583 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4584 4585 // Note: For QoI reasons, the things we use as a hash here should all be 4586 // dumped via the -module-info flag. 4587 4588 // Start the signature with the compiler version. 4589 HBuilder.add(getClangFullRepositoryVersion()); 4590 4591 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4592 // and getClangFullRepositoryVersion() doesn't include git revision. 4593 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4594 4595 // Extend the signature with the language options 4596 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4597 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4598 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4599 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4600 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4601 #include "clang/Basic/LangOptions.def" 4602 4603 HBuilder.addRange(LangOpts->ModuleFeatures); 4604 4605 HBuilder.add(LangOpts->ObjCRuntime); 4606 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4607 4608 // Extend the signature with the target options. 4609 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4610 TargetOpts->ABI); 4611 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4612 4613 // Extend the signature with preprocessor options. 4614 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4615 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4616 4617 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4618 for (const auto &Macro : getPreprocessorOpts().Macros) { 4619 // If we're supposed to ignore this macro for the purposes of modules, 4620 // don't put it into the hash. 4621 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4622 // Check whether we're ignoring this macro. 4623 StringRef MacroDef = Macro.first; 4624 if (hsOpts.ModulesIgnoreMacros.count( 4625 llvm::CachedHashString(MacroDef.split('=').first))) 4626 continue; 4627 } 4628 4629 HBuilder.add(Macro); 4630 } 4631 4632 // Extend the signature with the sysroot and other header search options. 4633 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4634 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4635 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4636 hsOpts.ModulesValidateDiagnosticOptions); 4637 HBuilder.add(hsOpts.ResourceDir); 4638 4639 if (hsOpts.ModulesStrictContextHash) { 4640 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4641 HBuilder.addRange(hsOpts.UserEntries); 4642 4643 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4644 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4645 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4646 HBuilder.add(diagOpts.get##Name()); 4647 #include "clang/Basic/DiagnosticOptions.def" 4648 #undef DIAGOPT 4649 #undef ENUM_DIAGOPT 4650 } 4651 4652 // Extend the signature with the user build path. 4653 HBuilder.add(hsOpts.ModuleUserBuildPath); 4654 4655 // Extend the signature with the module file extensions. 4656 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4657 ext->hashExtension(HBuilder); 4658 4659 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4660 // affects the debug info in the PCM. 4661 if (getCodeGenOpts().DebugTypeExtRefs) 4662 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4663 4664 // Extend the signature with the enabled sanitizers, if at least one is 4665 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4666 SanitizerSet SanHash = LangOpts->Sanitize; 4667 SanHash.clear(getPPTransparentSanitizers()); 4668 if (!SanHash.empty()) 4669 HBuilder.add(SanHash.Mask); 4670 4671 llvm::MD5::MD5Result Result; 4672 HBuilder.getHasher().final(Result); 4673 uint64_t Hash = Result.high() ^ Result.low(); 4674 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4675 } 4676 4677 void CompilerInvocation::generateCC1CommandLine( 4678 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4679 llvm::Triple T(TargetOpts->Triple); 4680 4681 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4682 GenerateMigratorArgs(MigratorOpts, Args, SA); 4683 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4684 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4685 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4686 GenerateTargetArgs(*TargetOpts, Args, SA); 4687 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4688 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4689 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4690 &*LangOpts); 4691 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4692 CodeGenOpts); 4693 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4694 FrontendOpts.ProgramAction); 4695 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4696 } 4697 4698 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4699 // Set up string allocator. 4700 llvm::BumpPtrAllocator Alloc; 4701 llvm::StringSaver Strings(Alloc); 4702 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4703 4704 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4705 SmallVector<const char *, 32> Args{"-cc1"}; 4706 generateCC1CommandLine(Args, SA); 4707 4708 // Convert arguments to the return type. 4709 return std::vector<std::string>{Args.begin(), Args.end()}; 4710 } 4711 4712 void CompilerInvocation::resetNonModularOptions() { 4713 getLangOpts()->resetNonModularOptions(); 4714 getPreprocessorOpts().resetNonModularOptions(); 4715 } 4716 4717 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4718 getLangOpts()->ImplicitModules = false; 4719 getHeaderSearchOpts().ImplicitModuleMaps = false; 4720 getHeaderSearchOpts().ModuleCachePath.clear(); 4721 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4722 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4723 // The specific values we canonicalize to for pruning don't affect behaviour, 4724 /// so use the default values so they may be dropped from the command-line. 4725 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4726 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4727 } 4728 4729 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4730 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4731 DiagnosticsEngine &Diags) { 4732 return createVFSFromCompilerInvocation(CI, Diags, 4733 llvm::vfs::getRealFileSystem()); 4734 } 4735 4736 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4737 clang::createVFSFromCompilerInvocation( 4738 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4739 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4740 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4741 Diags, std::move(BaseFS)); 4742 } 4743 4744 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4745 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4746 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4747 if (VFSOverlayFiles.empty()) 4748 return BaseFS; 4749 4750 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4751 // earlier vfs files are on the bottom 4752 for (const auto &File : VFSOverlayFiles) { 4753 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4754 Result->getBufferForFile(File); 4755 if (!Buffer) { 4756 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4757 continue; 4758 } 4759 4760 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4761 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4762 /*DiagContext*/ nullptr, Result); 4763 if (!FS) { 4764 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4765 continue; 4766 } 4767 4768 Result = FS; 4769 } 4770 return Result; 4771 } 4772