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