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 <fstream> 98 #include <memory> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 inline Expected<Optional<uint64_t>> parseToleranceOption(StringRef Arg) { 117 int64_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase() 129 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 130 DiagnosticOpts(new DiagnosticOptions()), 131 HeaderSearchOpts(new HeaderSearchOptions()), 132 PreprocessorOpts(new PreprocessorOptions()), 133 AnalyzerOpts(new AnalyzerOptions()) {} 134 135 CompilerInvocationRefBase::CompilerInvocationRefBase( 136 const CompilerInvocationRefBase &X) 137 : LangOpts(new LangOptions(*X.getLangOpts())), 138 TargetOpts(new TargetOptions(X.getTargetOpts())), 139 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 140 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 141 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 142 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 143 144 CompilerInvocationRefBase::CompilerInvocationRefBase( 145 CompilerInvocationRefBase &&X) = default; 146 147 CompilerInvocationRefBase & 148 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 149 LangOpts.swap(X.LangOpts); 150 TargetOpts.swap(X.TargetOpts); 151 DiagnosticOpts.swap(X.DiagnosticOpts); 152 HeaderSearchOpts.swap(X.HeaderSearchOpts); 153 PreprocessorOpts.swap(X.PreprocessorOpts); 154 AnalyzerOpts.swap(X.AnalyzerOpts); 155 return *this; 156 } 157 158 CompilerInvocationRefBase & 159 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 160 161 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 162 163 //===----------------------------------------------------------------------===// 164 // Normalizers 165 //===----------------------------------------------------------------------===// 166 167 #define SIMPLE_ENUM_VALUE_TABLE 168 #include "clang/Driver/Options.inc" 169 #undef SIMPLE_ENUM_VALUE_TABLE 170 171 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 172 unsigned TableIndex, 173 const ArgList &Args, 174 DiagnosticsEngine &Diags) { 175 if (Args.hasArg(Opt)) 176 return true; 177 return None; 178 } 179 180 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 181 const ArgList &Args, 182 DiagnosticsEngine &) { 183 if (Args.hasArg(Opt)) 184 return false; 185 return None; 186 } 187 188 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 189 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 190 /// unnecessary template instantiations and just ignore it with a variadic 191 /// argument. 192 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 193 const char *Spelling, 194 CompilerInvocation::StringAllocator, 195 Option::OptionClass, unsigned, /*T*/...) { 196 Args.push_back(Spelling); 197 } 198 199 template <typename T> static constexpr bool is_uint64_t_convertible() { 200 return !std::is_same<T, uint64_t>::value && 201 llvm::is_integral_or_enum<T>::value; 202 } 203 204 template <typename T, 205 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 206 static auto makeFlagToValueNormalizer(T Value) { 207 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 208 DiagnosticsEngine &) -> Optional<T> { 209 if (Args.hasArg(Opt)) 210 return Value; 211 return None; 212 }; 213 } 214 215 template <typename T, 216 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 217 static auto makeFlagToValueNormalizer(T Value) { 218 return makeFlagToValueNormalizer(uint64_t(Value)); 219 } 220 221 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 222 OptSpecifier OtherOpt) { 223 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 224 const ArgList &Args, 225 DiagnosticsEngine &) -> Optional<bool> { 226 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 227 return A->getOption().matches(Opt) ? Value : OtherValue; 228 } 229 return None; 230 }; 231 } 232 233 static auto makeBooleanOptionDenormalizer(bool Value) { 234 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 235 CompilerInvocation::StringAllocator, Option::OptionClass, 236 unsigned, bool KeyPath) { 237 if (KeyPath == Value) 238 Args.push_back(Spelling); 239 }; 240 } 241 242 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 243 const char *Spelling, 244 CompilerInvocation::StringAllocator SA, 245 Option::OptionClass OptClass, unsigned, 246 const Twine &Value) { 247 switch (OptClass) { 248 case Option::SeparateClass: 249 case Option::JoinedOrSeparateClass: 250 case Option::JoinedAndSeparateClass: 251 Args.push_back(Spelling); 252 Args.push_back(SA(Value)); 253 break; 254 case Option::JoinedClass: 255 case Option::CommaJoinedClass: 256 Args.push_back(SA(Twine(Spelling) + Value)); 257 break; 258 default: 259 llvm_unreachable("Cannot denormalize an option with option class " 260 "incompatible with string denormalization."); 261 } 262 } 263 264 template <typename T> 265 static void 266 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 267 CompilerInvocation::StringAllocator SA, 268 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 269 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 270 } 271 272 static Optional<SimpleEnumValue> 273 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 274 for (int I = 0, E = Table.Size; I != E; ++I) 275 if (Name == Table.Table[I].Name) 276 return Table.Table[I]; 277 278 return None; 279 } 280 281 static Optional<SimpleEnumValue> 282 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 283 for (int I = 0, E = Table.Size; I != E; ++I) 284 if (Value == Table.Table[I].Value) 285 return Table.Table[I]; 286 287 return None; 288 } 289 290 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 291 unsigned TableIndex, 292 const ArgList &Args, 293 DiagnosticsEngine &Diags) { 294 assert(TableIndex < SimpleEnumValueTablesSize); 295 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 296 297 auto *Arg = Args.getLastArg(Opt); 298 if (!Arg) 299 return None; 300 301 StringRef ArgValue = Arg->getValue(); 302 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 303 return MaybeEnumVal->Value; 304 305 Diags.Report(diag::err_drv_invalid_value) 306 << Arg->getAsString(Args) << ArgValue; 307 return None; 308 } 309 310 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 311 const char *Spelling, 312 CompilerInvocation::StringAllocator SA, 313 Option::OptionClass OptClass, 314 unsigned TableIndex, unsigned Value) { 315 assert(TableIndex < SimpleEnumValueTablesSize); 316 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 317 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 318 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 319 MaybeEnumVal->Name); 320 } else { 321 llvm_unreachable("The simple enum value was not correctly defined in " 322 "the tablegen option description"); 323 } 324 } 325 326 template <typename T> 327 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 328 const char *Spelling, 329 CompilerInvocation::StringAllocator SA, 330 Option::OptionClass OptClass, 331 unsigned TableIndex, T Value) { 332 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 333 static_cast<unsigned>(Value)); 334 } 335 336 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 337 const ArgList &Args, 338 DiagnosticsEngine &Diags) { 339 auto *Arg = Args.getLastArg(Opt); 340 if (!Arg) 341 return None; 342 return std::string(Arg->getValue()); 343 } 344 345 template <typename IntTy> 346 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 347 const ArgList &Args, 348 DiagnosticsEngine &Diags) { 349 auto *Arg = Args.getLastArg(Opt); 350 if (!Arg) 351 return None; 352 IntTy Res; 353 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 354 Diags.Report(diag::err_drv_invalid_int_value) 355 << Arg->getAsString(Args) << Arg->getValue(); 356 return None; 357 } 358 return Res; 359 } 360 361 static Optional<std::vector<std::string>> 362 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 363 DiagnosticsEngine &) { 364 return Args.getAllArgValues(Opt); 365 } 366 367 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 368 const char *Spelling, 369 CompilerInvocation::StringAllocator SA, 370 Option::OptionClass OptClass, 371 unsigned TableIndex, 372 const std::vector<std::string> &Values) { 373 switch (OptClass) { 374 case Option::CommaJoinedClass: { 375 std::string CommaJoinedValue; 376 if (!Values.empty()) { 377 CommaJoinedValue.append(Values.front()); 378 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 379 CommaJoinedValue.append(","); 380 CommaJoinedValue.append(Value); 381 } 382 } 383 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 384 TableIndex, CommaJoinedValue); 385 break; 386 } 387 case Option::JoinedClass: 388 case Option::SeparateClass: 389 case Option::JoinedOrSeparateClass: 390 for (const std::string &Value : Values) 391 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 392 break; 393 default: 394 llvm_unreachable("Cannot denormalize an option with option class " 395 "incompatible with string vector denormalization."); 396 } 397 } 398 399 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 400 const ArgList &Args, 401 DiagnosticsEngine &Diags) { 402 auto *Arg = Args.getLastArg(Opt); 403 if (!Arg) 404 return None; 405 return llvm::Triple::normalize(Arg->getValue()); 406 } 407 408 template <typename T, typename U> 409 static T mergeForwardValue(T KeyPath, U Value) { 410 return static_cast<T>(Value); 411 } 412 413 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 414 return KeyPath | Value; 415 } 416 417 template <typename T> static T extractForwardValue(T KeyPath) { 418 return KeyPath; 419 } 420 421 template <typename T, typename U, U Value> 422 static T extractMaskValue(T KeyPath) { 423 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 424 } 425 426 #define PARSE_OPTION_WITH_MARSHALLING( \ 427 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 428 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 429 if ((FLAGS)&options::CC1Option) { \ 430 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 431 if (IMPLIED_CHECK) \ 432 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 433 if (SHOULD_PARSE) \ 434 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 435 KEYPATH = \ 436 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 437 } 438 439 // Capture the extracted value as a lambda argument to avoid potential issues 440 // with lifetime extension of the reference. 441 #define GENERATE_OPTION_WITH_MARSHALLING( \ 442 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 443 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 444 TABLE_INDEX) \ 445 if ((FLAGS)&options::CC1Option) { \ 446 [&](const auto &Extracted) { \ 447 if (ALWAYS_EMIT || \ 448 (Extracted != \ 449 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 450 : (DEFAULT_VALUE)))) \ 451 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 452 TABLE_INDEX, Extracted); \ 453 }(EXTRACTOR(KEYPATH)); \ 454 } 455 456 static StringRef GetInputKindName(InputKind IK); 457 458 static bool FixupInvocation(CompilerInvocation &Invocation, 459 DiagnosticsEngine &Diags, const ArgList &Args, 460 InputKind IK) { 461 unsigned NumErrorsBefore = Diags.getNumErrors(); 462 463 LangOptions &LangOpts = *Invocation.getLangOpts(); 464 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 465 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 466 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 467 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 468 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 469 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 470 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 471 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 472 if (FrontendOpts.ShowStats) 473 CodeGenOpts.ClearASTBeforeBackend = false; 474 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 475 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 476 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 477 LangOpts.CurrentModule = LangOpts.ModuleName; 478 479 llvm::Triple T(TargetOpts.Triple); 480 llvm::Triple::ArchType Arch = T.getArch(); 481 482 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 483 484 if (LangOpts.getExceptionHandling() != 485 LangOptions::ExceptionHandlingKind::None && 486 T.isWindowsMSVCEnvironment()) 487 Diags.Report(diag::err_fe_invalid_exception_model) 488 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 489 490 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 491 Diags.Report(diag::warn_c_kext); 492 493 if (Args.hasArg(OPT_fconcepts_ts)) 494 Diags.Report(diag::warn_fe_concepts_ts_flag); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 514 Diags.Report(diag::warn_ignored_hip_only_option) 515 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 516 517 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 520 521 // When these options are used, the compiler is allowed to apply 522 // optimizations that may affect the final result. For example 523 // (x+y)+z is transformed to x+(y+z) but may not give the same 524 // final result; it's not value safe. 525 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 526 // or NaN. Final result may then differ. An error is issued when the eval 527 // method is set with one of these options. 528 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 529 if (LangOpts.ApproxFunc) 530 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 531 if (LangOpts.AllowFPReassoc) 532 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 533 if (LangOpts.AllowRecip) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 535 } 536 537 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 538 // This option should be deprecated for CL > 1.0 because 539 // this option was added for compatibility with OpenCL 1.0. 540 if (Args.getLastArg(OPT_cl_strict_aliasing) && 541 (LangOpts.getOpenCLCompatibleVersion() > 100)) 542 Diags.Report(diag::warn_option_invalid_ocl_version) 543 << LangOpts.getOpenCLVersionString() 544 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 545 546 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 547 auto DefaultCC = LangOpts.getDefaultCallingConv(); 548 549 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 550 DefaultCC == LangOptions::DCC_StdCall) && 551 Arch != llvm::Triple::x86; 552 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 553 DefaultCC == LangOptions::DCC_RegCall) && 554 !T.isX86(); 555 if (emitError) 556 Diags.Report(diag::err_drv_argument_not_allowed_with) 557 << A->getSpelling() << T.getTriple(); 558 } 559 560 return Diags.getNumErrors() == NumErrorsBefore; 561 } 562 563 //===----------------------------------------------------------------------===// 564 // Deserialization (from args) 565 //===----------------------------------------------------------------------===// 566 567 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 568 DiagnosticsEngine &Diags) { 569 unsigned DefaultOpt = llvm::CodeGenOpt::None; 570 if ((IK.getLanguage() == Language::OpenCL || 571 IK.getLanguage() == Language::OpenCLCXX) && 572 !Args.hasArg(OPT_cl_opt_disable)) 573 DefaultOpt = llvm::CodeGenOpt::Default; 574 575 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 576 if (A->getOption().matches(options::OPT_O0)) 577 return llvm::CodeGenOpt::None; 578 579 if (A->getOption().matches(options::OPT_Ofast)) 580 return llvm::CodeGenOpt::Aggressive; 581 582 assert(A->getOption().matches(options::OPT_O)); 583 584 StringRef S(A->getValue()); 585 if (S == "s" || S == "z") 586 return llvm::CodeGenOpt::Default; 587 588 if (S == "g") 589 return llvm::CodeGenOpt::Less; 590 591 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 592 } 593 594 return DefaultOpt; 595 } 596 597 static unsigned getOptimizationLevelSize(ArgList &Args) { 598 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 599 if (A->getOption().matches(options::OPT_O)) { 600 switch (A->getValue()[0]) { 601 default: 602 return 0; 603 case 's': 604 return 1; 605 case 'z': 606 return 2; 607 } 608 } 609 } 610 return 0; 611 } 612 613 static void GenerateArg(SmallVectorImpl<const char *> &Args, 614 llvm::opt::OptSpecifier OptSpecifier, 615 CompilerInvocation::StringAllocator SA) { 616 Option Opt = getDriverOptTable().getOption(OptSpecifier); 617 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 618 Option::OptionClass::FlagClass, 0); 619 } 620 621 static void GenerateArg(SmallVectorImpl<const char *> &Args, 622 llvm::opt::OptSpecifier OptSpecifier, 623 const Twine &Value, 624 CompilerInvocation::StringAllocator SA) { 625 Option Opt = getDriverOptTable().getOption(OptSpecifier); 626 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 627 Opt.getKind(), 0, Value); 628 } 629 630 // Parse command line arguments into CompilerInvocation. 631 using ParseFn = 632 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 633 DiagnosticsEngine &, const char *)>; 634 635 // Generate command line arguments from CompilerInvocation. 636 using GenerateFn = llvm::function_ref<void( 637 CompilerInvocation &, SmallVectorImpl<const char *> &, 638 CompilerInvocation::StringAllocator)>; 639 640 // May perform round-trip of command line arguments. By default, the round-trip 641 // is enabled in assert builds. This can be overwritten at run-time via the 642 // "-round-trip-args" and "-no-round-trip-args" command line flags. 643 // During round-trip, the command line arguments are parsed into a dummy 644 // instance of CompilerInvocation which is used to generate the command line 645 // arguments again. The real CompilerInvocation instance is then created by 646 // parsing the generated arguments, not the original ones. 647 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 648 CompilerInvocation &RealInvocation, 649 CompilerInvocation &DummyInvocation, 650 ArrayRef<const char *> CommandLineArgs, 651 DiagnosticsEngine &Diags, const char *Argv0) { 652 #ifndef NDEBUG 653 bool DoRoundTripDefault = true; 654 #else 655 bool DoRoundTripDefault = false; 656 #endif 657 658 bool DoRoundTrip = DoRoundTripDefault; 659 for (const auto *Arg : CommandLineArgs) { 660 if (Arg == StringRef("-round-trip-args")) 661 DoRoundTrip = true; 662 if (Arg == StringRef("-no-round-trip-args")) 663 DoRoundTrip = false; 664 } 665 666 // If round-trip was not requested, simply run the parser with the real 667 // invocation diagnostics. 668 if (!DoRoundTrip) 669 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 670 671 // Serializes quoted (and potentially escaped) arguments. 672 auto SerializeArgs = [](ArrayRef<const char *> Args) { 673 std::string Buffer; 674 llvm::raw_string_ostream OS(Buffer); 675 for (const char *Arg : Args) { 676 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 677 OS << ' '; 678 } 679 OS.flush(); 680 return Buffer; 681 }; 682 683 // Setup a dummy DiagnosticsEngine. 684 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 685 DummyDiags.setClient(new TextDiagnosticBuffer()); 686 687 // Run the first parse on the original arguments with the dummy invocation and 688 // diagnostics. 689 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 690 DummyDiags.getNumWarnings() != 0) { 691 // If the first parse did not succeed, it must be user mistake (invalid 692 // command line arguments). We won't be able to generate arguments that 693 // would reproduce the same result. Let's fail again with the real 694 // invocation and diagnostics, so all side-effects of parsing are visible. 695 unsigned NumWarningsBefore = Diags.getNumWarnings(); 696 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 697 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 698 return Success; 699 700 // Parse with original options and diagnostics succeeded even though it 701 // shouldn't have. Something is off. 702 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 703 Diags.Report(diag::note_cc1_round_trip_original) 704 << SerializeArgs(CommandLineArgs); 705 return false; 706 } 707 708 // Setup string allocator. 709 llvm::BumpPtrAllocator Alloc; 710 llvm::StringSaver StringPool(Alloc); 711 auto SA = [&StringPool](const Twine &Arg) { 712 return StringPool.save(Arg).data(); 713 }; 714 715 // Generate arguments from the dummy invocation. If Generate is the 716 // inverse of Parse, the newly generated arguments must have the same 717 // semantics as the original. 718 SmallVector<const char *> GeneratedArgs1; 719 Generate(DummyInvocation, GeneratedArgs1, SA); 720 721 // Run the second parse, now on the generated arguments, and with the real 722 // invocation and diagnostics. The result is what we will end up using for the 723 // rest of compilation, so if Generate is not inverse of Parse, something down 724 // the line will break. 725 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 726 727 // The first parse on original arguments succeeded, but second parse of 728 // generated arguments failed. Something must be wrong with the generator. 729 if (!Success2) { 730 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 1 << SerializeArgs(GeneratedArgs1); 733 return false; 734 } 735 736 // Generate arguments again, this time from the options we will end up using 737 // for the rest of the compilation. 738 SmallVector<const char *> GeneratedArgs2; 739 Generate(RealInvocation, GeneratedArgs2, SA); 740 741 // Compares two lists of generated arguments. 742 auto Equal = [](const ArrayRef<const char *> A, 743 const ArrayRef<const char *> B) { 744 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 745 [](const char *AElem, const char *BElem) { 746 return StringRef(AElem) == StringRef(BElem); 747 }); 748 }; 749 750 // If we generated different arguments from what we assume are two 751 // semantically equivalent CompilerInvocations, the Generate function may 752 // be non-deterministic. 753 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 754 Diags.Report(diag::err_cc1_round_trip_mismatch); 755 Diags.Report(diag::note_cc1_round_trip_generated) 756 << 1 << SerializeArgs(GeneratedArgs1); 757 Diags.Report(diag::note_cc1_round_trip_generated) 758 << 2 << SerializeArgs(GeneratedArgs2); 759 return false; 760 } 761 762 Diags.Report(diag::remark_cc1_round_trip_generated) 763 << 1 << SerializeArgs(GeneratedArgs1); 764 Diags.Report(diag::remark_cc1_round_trip_generated) 765 << 2 << SerializeArgs(GeneratedArgs2); 766 767 return Success2; 768 } 769 770 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 771 OptSpecifier GroupWithValue, 772 std::vector<std::string> &Diagnostics) { 773 for (auto *A : Args.filtered(Group)) { 774 if (A->getOption().getKind() == Option::FlagClass) { 775 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 776 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 777 Diagnostics.push_back( 778 std::string(A->getOption().getName().drop_front(1))); 779 } else if (A->getOption().matches(GroupWithValue)) { 780 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 781 // group. Add only the group name to the diagnostics. 782 Diagnostics.push_back( 783 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 784 } else { 785 // Otherwise, add its value (for OPT_W_Joined and similar). 786 Diagnostics.push_back(A->getValue()); 787 } 788 } 789 } 790 791 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 792 // it won't verify the input. 793 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 794 DiagnosticsEngine *Diags); 795 796 static void getAllNoBuiltinFuncValues(ArgList &Args, 797 std::vector<std::string> &Funcs) { 798 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 799 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 800 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 801 } 802 803 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 804 SmallVectorImpl<const char *> &Args, 805 CompilerInvocation::StringAllocator SA) { 806 const AnalyzerOptions *AnalyzerOpts = &Opts; 807 808 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 809 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 810 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 811 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 812 MERGER, EXTRACTOR, TABLE_INDEX) \ 813 GENERATE_OPTION_WITH_MARSHALLING( \ 814 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 815 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 816 #include "clang/Driver/Options.inc" 817 #undef ANALYZER_OPTION_WITH_MARSHALLING 818 819 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 820 switch (Opts.AnalysisConstraintsOpt) { 821 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 822 case NAME##Model: \ 823 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 824 break; 825 #include "clang/StaticAnalyzer/Core/Analyses.def" 826 default: 827 llvm_unreachable("Tried to generate unknown analysis constraint."); 828 } 829 } 830 831 if (Opts.AnalysisDiagOpt != PD_HTML) { 832 switch (Opts.AnalysisDiagOpt) { 833 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 834 case PD_##NAME: \ 835 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 836 break; 837 #include "clang/StaticAnalyzer/Core/Analyses.def" 838 default: 839 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 840 } 841 } 842 843 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 844 switch (Opts.AnalysisPurgeOpt) { 845 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 846 case NAME: \ 847 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 848 break; 849 #include "clang/StaticAnalyzer/Core/Analyses.def" 850 default: 851 llvm_unreachable("Tried to generate unknown analysis purge mode."); 852 } 853 } 854 855 if (Opts.InliningMode != NoRedundancy) { 856 switch (Opts.InliningMode) { 857 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 858 case NAME: \ 859 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 860 break; 861 #include "clang/StaticAnalyzer/Core/Analyses.def" 862 default: 863 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 864 } 865 } 866 867 for (const auto &CP : Opts.CheckersAndPackages) { 868 OptSpecifier Opt = 869 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 870 GenerateArg(Args, Opt, CP.first, SA); 871 } 872 873 AnalyzerOptions ConfigOpts; 874 parseAnalyzerConfigs(ConfigOpts, nullptr); 875 876 for (const auto &C : Opts.Config) { 877 // Don't generate anything that came from parseAnalyzerConfigs. It would be 878 // redundant and may not be valid on the command line. 879 auto Entry = ConfigOpts.Config.find(C.getKey()); 880 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 881 continue; 882 883 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 884 } 885 886 // Nothing to generate for FullCompilerInvocation. 887 } 888 889 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 890 DiagnosticsEngine &Diags) { 891 unsigned NumErrorsBefore = Diags.getNumErrors(); 892 893 AnalyzerOptions *AnalyzerOpts = &Opts; 894 895 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 896 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 897 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 898 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 899 MERGER, EXTRACTOR, TABLE_INDEX) \ 900 PARSE_OPTION_WITH_MARSHALLING( \ 901 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 902 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 903 #include "clang/Driver/Options.inc" 904 #undef ANALYZER_OPTION_WITH_MARSHALLING 905 906 if (Args.hasArg(OPT_analyzer_store)) 907 Diags.Report(diag::warn_analyzer_deprecated_option) << "-analyzer-store" 908 << "clang-16"; 909 if (Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks)) 910 Diags.Report(diag::warn_analyzer_deprecated_option) 911 << "-analyzer-opt-analyze-nested-blocks" 912 << "clang-16"; 913 914 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 915 StringRef Name = A->getValue(); 916 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 917 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 918 .Case(CMDFLAG, NAME##Model) 919 #include "clang/StaticAnalyzer/Core/Analyses.def" 920 .Default(NumConstraints); 921 if (Value == NumConstraints) { 922 Diags.Report(diag::err_drv_invalid_value) 923 << A->getAsString(Args) << Name; 924 } else { 925 #ifndef LLVM_WITH_Z3 926 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 927 Diags.Report(diag::err_analyzer_not_built_with_z3); 928 } 929 #endif // LLVM_WITH_Z3 930 Opts.AnalysisConstraintsOpt = Value; 931 } 932 } 933 934 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 935 StringRef Name = A->getValue(); 936 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 937 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 938 .Case(CMDFLAG, PD_##NAME) 939 #include "clang/StaticAnalyzer/Core/Analyses.def" 940 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 941 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 942 Diags.Report(diag::err_drv_invalid_value) 943 << A->getAsString(Args) << Name; 944 } else { 945 Opts.AnalysisDiagOpt = Value; 946 } 947 } 948 949 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 950 StringRef Name = A->getValue(); 951 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 952 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 953 .Case(CMDFLAG, NAME) 954 #include "clang/StaticAnalyzer/Core/Analyses.def" 955 .Default(NumPurgeModes); 956 if (Value == NumPurgeModes) { 957 Diags.Report(diag::err_drv_invalid_value) 958 << A->getAsString(Args) << Name; 959 } else { 960 Opts.AnalysisPurgeOpt = Value; 961 } 962 } 963 964 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 965 StringRef Name = A->getValue(); 966 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 967 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 968 .Case(CMDFLAG, NAME) 969 #include "clang/StaticAnalyzer/Core/Analyses.def" 970 .Default(NumInliningModes); 971 if (Value == NumInliningModes) { 972 Diags.Report(diag::err_drv_invalid_value) 973 << A->getAsString(Args) << Name; 974 } else { 975 Opts.InliningMode = Value; 976 } 977 } 978 979 Opts.CheckersAndPackages.clear(); 980 for (const Arg *A : 981 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 982 A->claim(); 983 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 984 // We can have a list of comma separated checker names, e.g: 985 // '-analyzer-checker=cocoa,unix' 986 StringRef CheckerAndPackageList = A->getValue(); 987 SmallVector<StringRef, 16> CheckersAndPackages; 988 CheckerAndPackageList.split(CheckersAndPackages, ","); 989 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 990 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 991 IsEnabled); 992 } 993 994 // Go through the analyzer configuration options. 995 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 996 997 // We can have a list of comma separated config names, e.g: 998 // '-analyzer-config key1=val1,key2=val2' 999 StringRef configList = A->getValue(); 1000 SmallVector<StringRef, 4> configVals; 1001 configList.split(configVals, ","); 1002 for (const auto &configVal : configVals) { 1003 StringRef key, val; 1004 std::tie(key, val) = configVal.split("="); 1005 if (val.empty()) { 1006 Diags.Report(SourceLocation(), 1007 diag::err_analyzer_config_no_value) << configVal; 1008 break; 1009 } 1010 if (val.contains('=')) { 1011 Diags.Report(SourceLocation(), 1012 diag::err_analyzer_config_multiple_values) 1013 << configVal; 1014 break; 1015 } 1016 1017 // TODO: Check checker options too, possibly in CheckerRegistry. 1018 // Leave unknown non-checker configs unclaimed. 1019 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1020 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1021 Diags.Report(diag::err_analyzer_config_unknown) << key; 1022 continue; 1023 } 1024 1025 A->claim(); 1026 Opts.Config[key] = std::string(val); 1027 } 1028 } 1029 1030 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1031 parseAnalyzerConfigs(Opts, &Diags); 1032 else 1033 parseAnalyzerConfigs(Opts, nullptr); 1034 1035 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1036 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1037 if (i != 0) 1038 os << " "; 1039 os << Args.getArgString(i); 1040 } 1041 os.flush(); 1042 1043 return Diags.getNumErrors() == NumErrorsBefore; 1044 } 1045 1046 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1047 StringRef OptionName, StringRef DefaultVal) { 1048 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1049 } 1050 1051 static void initOption(AnalyzerOptions::ConfigTable &Config, 1052 DiagnosticsEngine *Diags, 1053 StringRef &OptionField, StringRef Name, 1054 StringRef DefaultVal) { 1055 // String options may be known to invalid (e.g. if the expected string is a 1056 // file name, but the file does not exist), those will have to be checked in 1057 // parseConfigs. 1058 OptionField = getStringOption(Config, Name, DefaultVal); 1059 } 1060 1061 static void initOption(AnalyzerOptions::ConfigTable &Config, 1062 DiagnosticsEngine *Diags, 1063 bool &OptionField, StringRef Name, bool DefaultVal) { 1064 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1065 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1066 .Case("true", true) 1067 .Case("false", false) 1068 .Default(None); 1069 1070 if (!PossiblyInvalidVal) { 1071 if (Diags) 1072 Diags->Report(diag::err_analyzer_config_invalid_input) 1073 << Name << "a boolean"; 1074 else 1075 OptionField = DefaultVal; 1076 } else 1077 OptionField = PossiblyInvalidVal.getValue(); 1078 } 1079 1080 static void initOption(AnalyzerOptions::ConfigTable &Config, 1081 DiagnosticsEngine *Diags, 1082 unsigned &OptionField, StringRef Name, 1083 unsigned DefaultVal) { 1084 1085 OptionField = DefaultVal; 1086 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1087 .getAsInteger(0, OptionField); 1088 if (Diags && HasFailed) 1089 Diags->Report(diag::err_analyzer_config_invalid_input) 1090 << Name << "an unsigned"; 1091 } 1092 1093 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1094 DiagnosticsEngine *Diags) { 1095 // TODO: There's no need to store the entire configtable, it'd be plenty 1096 // enough to store checker options. 1097 1098 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1099 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1100 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1101 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1102 1103 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1104 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1105 1106 #define ANALYZER_OPTION(...) 1107 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1108 SHALLOW_VAL, DEEP_VAL) \ 1109 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1110 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1111 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1112 1113 // At this point, AnalyzerOptions is configured. Let's validate some options. 1114 1115 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1116 // The current approach only validates the registered checkers which does not 1117 // contain the runtime enabled checkers and optimally we would validate both. 1118 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1119 std::vector<StringRef> Checkers = 1120 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1121 std::vector<StringRef> Packages = 1122 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1123 1124 SmallVector<StringRef, 16> CheckersAndPackages; 1125 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1126 1127 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1128 if (Diags) { 1129 bool IsChecker = CheckerOrPackage.contains('.'); 1130 bool IsValidName = IsChecker 1131 ? llvm::is_contained(Checkers, CheckerOrPackage) 1132 : llvm::is_contained(Packages, CheckerOrPackage); 1133 1134 if (!IsValidName) 1135 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1136 << CheckerOrPackage; 1137 } 1138 1139 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1140 } 1141 } 1142 1143 if (!Diags) 1144 return; 1145 1146 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1147 Diags->Report(diag::err_analyzer_config_invalid_input) 1148 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1149 1150 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1151 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1152 << "a filename"; 1153 1154 if (!AnOpts.ModelPath.empty() && 1155 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1156 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1157 << "a filename"; 1158 } 1159 1160 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1161 static void 1162 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1163 CompilerInvocation::StringAllocator SA, 1164 OptSpecifier OptEQ, StringRef Name, 1165 const CodeGenOptions::OptRemark &Remark) { 1166 if (Remark.hasValidPattern()) { 1167 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1168 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1169 GenerateArg(Args, OPT_R_Joined, Name, SA); 1170 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1171 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1172 } 1173 } 1174 1175 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1176 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1177 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1178 static CodeGenOptions::OptRemark 1179 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1180 OptSpecifier OptEQ, StringRef Name) { 1181 CodeGenOptions::OptRemark Result; 1182 1183 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1184 StringRef Pattern) { 1185 Result.Pattern = Pattern.str(); 1186 1187 std::string RegexError; 1188 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1189 if (!Result.Regex->isValid(RegexError)) { 1190 Diags.Report(diag::err_drv_optimization_remark_pattern) 1191 << RegexError << A->getAsString(Args); 1192 return false; 1193 } 1194 1195 return true; 1196 }; 1197 1198 for (Arg *A : Args) { 1199 if (A->getOption().matches(OPT_R_Joined)) { 1200 StringRef Value = A->getValue(); 1201 1202 if (Value == Name) 1203 Result.Kind = CodeGenOptions::RK_Enabled; 1204 else if (Value == "everything") 1205 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1206 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1207 Result.Kind = CodeGenOptions::RK_Disabled; 1208 else if (Value == "no-everything") 1209 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1210 else 1211 continue; 1212 1213 if (Result.Kind == CodeGenOptions::RK_Disabled || 1214 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1215 Result.Pattern = ""; 1216 Result.Regex = nullptr; 1217 } else { 1218 InitializeResultPattern(A, ".*"); 1219 } 1220 } else if (A->getOption().matches(OptEQ)) { 1221 Result.Kind = CodeGenOptions::RK_WithPattern; 1222 if (!InitializeResultPattern(A, A->getValue())) 1223 return CodeGenOptions::OptRemark(); 1224 } 1225 } 1226 1227 return Result; 1228 } 1229 1230 static bool parseDiagnosticLevelMask(StringRef FlagName, 1231 const std::vector<std::string> &Levels, 1232 DiagnosticsEngine &Diags, 1233 DiagnosticLevelMask &M) { 1234 bool Success = true; 1235 for (const auto &Level : Levels) { 1236 DiagnosticLevelMask const PM = 1237 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1238 .Case("note", DiagnosticLevelMask::Note) 1239 .Case("remark", DiagnosticLevelMask::Remark) 1240 .Case("warning", DiagnosticLevelMask::Warning) 1241 .Case("error", DiagnosticLevelMask::Error) 1242 .Default(DiagnosticLevelMask::None); 1243 if (PM == DiagnosticLevelMask::None) { 1244 Success = false; 1245 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1246 } 1247 M = M | PM; 1248 } 1249 return Success; 1250 } 1251 1252 static void parseSanitizerKinds(StringRef FlagName, 1253 const std::vector<std::string> &Sanitizers, 1254 DiagnosticsEngine &Diags, SanitizerSet &S) { 1255 for (const auto &Sanitizer : Sanitizers) { 1256 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1257 if (K == SanitizerMask()) 1258 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1259 else 1260 S.set(K, true); 1261 } 1262 } 1263 1264 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1265 SmallVector<StringRef, 4> Values; 1266 serializeSanitizerSet(S, Values); 1267 return Values; 1268 } 1269 1270 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1271 ArgList &Args, DiagnosticsEngine &D, 1272 XRayInstrSet &S) { 1273 llvm::SmallVector<StringRef, 2> BundleParts; 1274 llvm::SplitString(Bundle, BundleParts, ","); 1275 for (const auto &B : BundleParts) { 1276 auto Mask = parseXRayInstrValue(B); 1277 if (Mask == XRayInstrKind::None) 1278 if (B != "none") 1279 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1280 else 1281 S.Mask = Mask; 1282 else if (Mask == XRayInstrKind::All) 1283 S.Mask = Mask; 1284 else 1285 S.set(Mask, true); 1286 } 1287 } 1288 1289 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1290 llvm::SmallVector<StringRef, 2> BundleParts; 1291 serializeXRayInstrValue(S, BundleParts); 1292 std::string Buffer; 1293 llvm::raw_string_ostream OS(Buffer); 1294 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1295 return Buffer; 1296 } 1297 1298 // Set the profile kind using fprofile-instrument-use-path. 1299 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1300 const Twine &ProfileName) { 1301 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1302 // In error, return silently and let Clang PGOUse report the error message. 1303 if (auto E = ReaderOrErr.takeError()) { 1304 llvm::consumeError(std::move(E)); 1305 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1306 return; 1307 } 1308 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1309 std::move(ReaderOrErr.get()); 1310 if (PGOReader->isIRLevelProfile()) { 1311 if (PGOReader->hasCSIRLevelProfile()) 1312 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1313 else 1314 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1315 } else 1316 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1317 } 1318 1319 void CompilerInvocation::GenerateCodeGenArgs( 1320 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1321 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1322 const LangOptions *LangOpts) { 1323 const CodeGenOptions &CodeGenOpts = Opts; 1324 1325 if (Opts.OptimizationLevel == 0) 1326 GenerateArg(Args, OPT_O0, SA); 1327 else 1328 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1329 1330 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1331 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1332 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1333 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1334 MERGER, EXTRACTOR, TABLE_INDEX) \ 1335 GENERATE_OPTION_WITH_MARSHALLING( \ 1336 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1337 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1338 #include "clang/Driver/Options.inc" 1339 #undef CODEGEN_OPTION_WITH_MARSHALLING 1340 1341 if (Opts.OptimizationLevel > 0) { 1342 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1343 GenerateArg(Args, OPT_finline_functions, SA); 1344 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1345 GenerateArg(Args, OPT_finline_hint_functions, SA); 1346 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1347 GenerateArg(Args, OPT_fno_inline, SA); 1348 } 1349 1350 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1351 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1352 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1353 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1354 1355 Optional<StringRef> DebugInfoVal; 1356 switch (Opts.DebugInfo) { 1357 case codegenoptions::DebugLineTablesOnly: 1358 DebugInfoVal = "line-tables-only"; 1359 break; 1360 case codegenoptions::DebugDirectivesOnly: 1361 DebugInfoVal = "line-directives-only"; 1362 break; 1363 case codegenoptions::DebugInfoConstructor: 1364 DebugInfoVal = "constructor"; 1365 break; 1366 case codegenoptions::LimitedDebugInfo: 1367 DebugInfoVal = "limited"; 1368 break; 1369 case codegenoptions::FullDebugInfo: 1370 DebugInfoVal = "standalone"; 1371 break; 1372 case codegenoptions::UnusedTypeInfo: 1373 DebugInfoVal = "unused-types"; 1374 break; 1375 case codegenoptions::NoDebugInfo: // default value 1376 DebugInfoVal = None; 1377 break; 1378 case codegenoptions::LocTrackingOnly: // implied value 1379 DebugInfoVal = None; 1380 break; 1381 } 1382 if (DebugInfoVal) 1383 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1384 1385 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 for (const auto &F : Opts.LinkBitcodeFiles) { 1489 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1490 F.PropagateAttrs && F.Internalize; 1491 GenerateArg(Args, 1492 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1493 F.Filename, SA); 1494 } 1495 1496 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1497 // That would make it easy to generate the option only **once** if it was 1498 // explicitly set to non-default value. 1499 if (Opts.ExplicitEmulatedTLS) { 1500 GenerateArg( 1501 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1502 } 1503 1504 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1505 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1506 1507 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1508 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1509 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1510 SA); 1511 1512 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1513 OptSpecifier Opt = 1514 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1515 GenerateArg(Args, Opt, SA); 1516 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1517 OptSpecifier Opt = 1518 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1519 GenerateArg(Args, Opt, SA); 1520 } 1521 1522 if (Opts.EnableAIXExtendedAltivecABI) 1523 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1524 1525 if (!Opts.OptRecordPasses.empty()) 1526 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1527 1528 if (!Opts.OptRecordFormat.empty()) 1529 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1530 1531 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1532 Opts.OptimizationRemark); 1533 1534 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1535 Opts.OptimizationRemarkMissed); 1536 1537 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1538 Opts.OptimizationRemarkAnalysis); 1539 1540 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1541 Opts.DiagnosticsHotnessThreshold 1542 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1543 : "auto", 1544 SA); 1545 1546 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1547 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1548 1549 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1550 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1551 1552 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1553 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1554 1555 if (!Opts.EmitVersionIdentMetadata) 1556 GenerateArg(Args, OPT_Qn, SA); 1557 1558 switch (Opts.FiniteLoops) { 1559 case CodeGenOptions::FiniteLoopsKind::Language: 1560 break; 1561 case CodeGenOptions::FiniteLoopsKind::Always: 1562 GenerateArg(Args, OPT_ffinite_loops, SA); 1563 break; 1564 case CodeGenOptions::FiniteLoopsKind::Never: 1565 GenerateArg(Args, OPT_fno_finite_loops, SA); 1566 break; 1567 } 1568 } 1569 1570 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1571 InputKind IK, 1572 DiagnosticsEngine &Diags, 1573 const llvm::Triple &T, 1574 const std::string &OutputFile, 1575 const LangOptions &LangOptsRef) { 1576 unsigned NumErrorsBefore = Diags.getNumErrors(); 1577 1578 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1579 // TODO: This could be done in Driver 1580 unsigned MaxOptLevel = 3; 1581 if (OptimizationLevel > MaxOptLevel) { 1582 // If the optimization level is not supported, fall back on the default 1583 // optimization 1584 Diags.Report(diag::warn_drv_optimization_value) 1585 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1586 OptimizationLevel = MaxOptLevel; 1587 } 1588 Opts.OptimizationLevel = OptimizationLevel; 1589 1590 // The key paths of codegen options defined in Options.td start with 1591 // "CodeGenOpts.". Let's provide the expected variable name and type. 1592 CodeGenOptions &CodeGenOpts = Opts; 1593 // Some codegen options depend on language options. Let's provide the expected 1594 // variable name and type. 1595 const LangOptions *LangOpts = &LangOptsRef; 1596 1597 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1598 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1599 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1600 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1601 MERGER, EXTRACTOR, TABLE_INDEX) \ 1602 PARSE_OPTION_WITH_MARSHALLING( \ 1603 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1604 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1605 #include "clang/Driver/Options.inc" 1606 #undef CODEGEN_OPTION_WITH_MARSHALLING 1607 1608 // At O0 we want to fully disable inlining outside of cases marked with 1609 // 'alwaysinline' that are required for correctness. 1610 if (Opts.OptimizationLevel == 0) { 1611 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1612 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1613 options::OPT_finline_hint_functions, 1614 options::OPT_fno_inline_functions, 1615 options::OPT_fno_inline)) { 1616 // Explicit inlining flags can disable some or all inlining even at 1617 // optimization levels above zero. 1618 if (A->getOption().matches(options::OPT_finline_functions)) 1619 Opts.setInlining(CodeGenOptions::NormalInlining); 1620 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1621 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1622 else 1623 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1624 } else { 1625 Opts.setInlining(CodeGenOptions::NormalInlining); 1626 } 1627 1628 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1629 // -fdirect-access-external-data. 1630 Opts.DirectAccessExternalData = 1631 Args.hasArg(OPT_fdirect_access_external_data) || 1632 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1633 LangOpts->PICLevel == 0); 1634 1635 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1636 unsigned Val = 1637 llvm::StringSwitch<unsigned>(A->getValue()) 1638 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1639 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1640 .Case("constructor", codegenoptions::DebugInfoConstructor) 1641 .Case("limited", codegenoptions::LimitedDebugInfo) 1642 .Case("standalone", codegenoptions::FullDebugInfo) 1643 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1644 .Default(~0U); 1645 if (Val == ~0U) 1646 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1647 << A->getValue(); 1648 else 1649 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1650 } 1651 1652 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1653 // constructor homing, and vice versa for -fno-use-ctor-homing. 1654 if (const Arg *A = 1655 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1656 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1657 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1658 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1659 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1660 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1661 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1662 } 1663 1664 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1665 auto Split = StringRef(Arg).split('='); 1666 Opts.DebugPrefixMap.insert( 1667 {std::string(Split.first), std::string(Split.second)}); 1668 } 1669 1670 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1671 auto Split = StringRef(Arg).split('='); 1672 Opts.CoveragePrefixMap.insert( 1673 {std::string(Split.first), std::string(Split.second)}); 1674 } 1675 1676 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1677 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1678 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1679 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1680 1681 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1682 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1683 Opts.EmitCallSiteInfo = true; 1684 1685 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1686 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1687 << Opts.DIBugsReportFilePath; 1688 Opts.DIBugsReportFilePath = ""; 1689 } 1690 1691 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1692 Args.hasArg(OPT_new_struct_path_tbaa); 1693 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1694 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1695 if (Opts.SimplifyLibCalls) 1696 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1697 Opts.UnrollLoops = 1698 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1699 (Opts.OptimizationLevel > 1)); 1700 Opts.BinutilsVersion = 1701 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1702 1703 Opts.DebugNameTable = static_cast<unsigned>( 1704 Args.hasArg(OPT_ggnu_pubnames) 1705 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1706 : Args.hasArg(OPT_gpubnames) 1707 ? llvm::DICompileUnit::DebugNameTableKind::Default 1708 : llvm::DICompileUnit::DebugNameTableKind::None); 1709 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1710 StringRef Value = A->getValue(); 1711 if (Value != "simple" && Value != "mangled") 1712 Diags.Report(diag::err_drv_unsupported_option_argument) 1713 << A->getOption().getName() << A->getValue(); 1714 Opts.setDebugSimpleTemplateNames( 1715 StringRef(A->getValue()) == "simple" 1716 ? codegenoptions::DebugTemplateNamesKind::Simple 1717 : codegenoptions::DebugTemplateNamesKind::Mangled); 1718 } 1719 1720 if (!Opts.ProfileInstrumentUsePath.empty()) 1721 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1722 1723 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1724 Opts.TimePasses = true; 1725 1726 // -ftime-report= is only for new pass manager. 1727 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1728 StringRef Val = A->getValue(); 1729 if (Val == "per-pass") 1730 Opts.TimePassesPerRun = false; 1731 else if (Val == "per-pass-run") 1732 Opts.TimePassesPerRun = true; 1733 else 1734 Diags.Report(diag::err_drv_invalid_value) 1735 << A->getAsString(Args) << A->getValue(); 1736 } 1737 } 1738 1739 Opts.PrepareForLTO = false; 1740 Opts.PrepareForThinLTO = false; 1741 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1742 Opts.PrepareForLTO = true; 1743 StringRef S = A->getValue(); 1744 if (S == "thin") 1745 Opts.PrepareForThinLTO = true; 1746 else if (S != "full") 1747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1748 } 1749 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1750 if (IK.getLanguage() != Language::LLVM_IR) 1751 Diags.Report(diag::err_drv_argument_only_allowed_with) 1752 << A->getAsString(Args) << "-x ir"; 1753 Opts.ThinLTOIndexFile = 1754 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1755 } 1756 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1757 Opts.SaveTempsFilePrefix = 1758 llvm::StringSwitch<std::string>(A->getValue()) 1759 .Case("obj", OutputFile) 1760 .Default(llvm::sys::path::filename(OutputFile).str()); 1761 1762 // The memory profile runtime appends the pid to make this name more unique. 1763 const char *MemProfileBasename = "memprof.profraw"; 1764 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1765 SmallString<128> Path( 1766 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1767 llvm::sys::path::append(Path, MemProfileBasename); 1768 Opts.MemoryProfileOutput = std::string(Path); 1769 } else if (Args.hasArg(OPT_fmemory_profile)) 1770 Opts.MemoryProfileOutput = MemProfileBasename; 1771 1772 memcpy(Opts.CoverageVersion, "408*", 4); 1773 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1774 if (Args.hasArg(OPT_coverage_version_EQ)) { 1775 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1776 if (CoverageVersion.size() != 4) { 1777 Diags.Report(diag::err_drv_invalid_value) 1778 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1779 << CoverageVersion; 1780 } else { 1781 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1782 } 1783 } 1784 } 1785 // FIXME: For backend options that are not yet recorded as function 1786 // attributes in the IR, keep track of them so we can embed them in a 1787 // separate data section and use them when building the bitcode. 1788 for (const auto &A : Args) { 1789 // Do not encode output and input. 1790 if (A->getOption().getID() == options::OPT_o || 1791 A->getOption().getID() == options::OPT_INPUT || 1792 A->getOption().getID() == options::OPT_x || 1793 A->getOption().getID() == options::OPT_fembed_bitcode || 1794 A->getOption().matches(options::OPT_W_Group)) 1795 continue; 1796 ArgStringList ASL; 1797 A->render(Args, ASL); 1798 for (const auto &arg : ASL) { 1799 StringRef ArgStr(arg); 1800 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1801 // using \00 to separate each commandline options. 1802 Opts.CmdArgs.push_back('\0'); 1803 } 1804 } 1805 1806 auto XRayInstrBundles = 1807 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1808 if (XRayInstrBundles.empty()) 1809 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1810 else 1811 for (const auto &A : XRayInstrBundles) 1812 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1813 Diags, Opts.XRayInstrumentationBundle); 1814 1815 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1816 StringRef Name = A->getValue(); 1817 if (Name == "full") { 1818 Opts.CFProtectionReturn = 1; 1819 Opts.CFProtectionBranch = 1; 1820 } else if (Name == "return") 1821 Opts.CFProtectionReturn = 1; 1822 else if (Name == "branch") 1823 Opts.CFProtectionBranch = 1; 1824 else if (Name != "none") 1825 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1826 } 1827 1828 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1829 Opts.IBTSeal = 1; 1830 1831 for (auto *A : 1832 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1833 CodeGenOptions::BitcodeFileToLink F; 1834 F.Filename = A->getValue(); 1835 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1836 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1837 // When linking CUDA bitcode, propagate function attributes so that 1838 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1839 F.PropagateAttrs = true; 1840 F.Internalize = true; 1841 } 1842 Opts.LinkBitcodeFiles.push_back(F); 1843 } 1844 1845 if (Args.getLastArg(OPT_femulated_tls) || 1846 Args.getLastArg(OPT_fno_emulated_tls)) { 1847 Opts.ExplicitEmulatedTLS = true; 1848 } 1849 1850 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1851 if (T.isOSAIX()) { 1852 StringRef Name = A->getValue(); 1853 if (Name != "global-dynamic") 1854 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1855 } 1856 } 1857 1858 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1859 StringRef Val = A->getValue(); 1860 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1861 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1862 if (!Opts.FPDenormalMode.isValid()) 1863 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1864 } 1865 1866 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1867 StringRef Val = A->getValue(); 1868 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1869 if (!Opts.FP32DenormalMode.isValid()) 1870 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1871 } 1872 1873 // X86_32 has -fppc-struct-return and -freg-struct-return. 1874 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1875 if (Arg *A = 1876 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1877 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1878 // TODO: We might want to consider enabling these options on AIX in the 1879 // future. 1880 if (T.isOSAIX()) 1881 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1882 << A->getSpelling() << T.str(); 1883 1884 const Option &O = A->getOption(); 1885 if (O.matches(OPT_fpcc_struct_return) || 1886 O.matches(OPT_maix_struct_return)) { 1887 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1888 } else { 1889 assert(O.matches(OPT_freg_struct_return) || 1890 O.matches(OPT_msvr4_struct_return)); 1891 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1892 } 1893 } 1894 1895 if (Arg *A = 1896 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1897 if (!T.isOSAIX()) 1898 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1899 << A->getSpelling() << T.str(); 1900 1901 const Option &O = A->getOption(); 1902 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1903 } 1904 1905 bool NeedLocTracking = false; 1906 1907 if (!Opts.OptRecordFile.empty()) 1908 NeedLocTracking = true; 1909 1910 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1911 Opts.OptRecordPasses = A->getValue(); 1912 NeedLocTracking = true; 1913 } 1914 1915 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1916 Opts.OptRecordFormat = A->getValue(); 1917 NeedLocTracking = true; 1918 } 1919 1920 Opts.OptimizationRemark = 1921 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1922 1923 Opts.OptimizationRemarkMissed = 1924 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1925 1926 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1927 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1928 1929 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1930 Opts.OptimizationRemarkMissed.hasValidPattern() || 1931 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1932 1933 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1934 bool UsingProfile = UsingSampleProfile || 1935 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1936 1937 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1938 // An IR file will contain PGO as metadata 1939 IK.getLanguage() != Language::LLVM_IR) 1940 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1941 << "-fdiagnostics-show-hotness"; 1942 1943 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1944 if (auto *arg = 1945 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1946 auto ResultOrErr = 1947 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1948 1949 if (!ResultOrErr) { 1950 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1951 << "-fdiagnostics-hotness-threshold="; 1952 } else { 1953 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1954 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1955 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1956 !UsingProfile) 1957 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1958 << "-fdiagnostics-hotness-threshold="; 1959 } 1960 } 1961 1962 if (auto *arg = 1963 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1964 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1965 1966 if (!ResultOrErr) { 1967 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1968 << "-fdiagnostics-misexpect-tolerance="; 1969 } else { 1970 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1971 if ((!Opts.DiagnosticsMisExpectTolerance.hasValue() || 1972 Opts.DiagnosticsMisExpectTolerance.getValue() > 0) && 1973 !UsingProfile) 1974 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 1975 << "-fdiagnostics-misexpect-tolerance="; 1976 } 1977 } 1978 1979 // If the user requested to use a sample profile for PGO, then the 1980 // backend will need to track source location information so the profile 1981 // can be incorporated into the IR. 1982 if (UsingSampleProfile) 1983 NeedLocTracking = true; 1984 1985 if (!Opts.StackUsageOutput.empty()) 1986 NeedLocTracking = true; 1987 1988 // If the user requested a flag that requires source locations available in 1989 // the backend, make sure that the backend tracks source location information. 1990 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1991 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1992 1993 // Parse -fsanitize-recover= arguments. 1994 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1995 parseSanitizerKinds("-fsanitize-recover=", 1996 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1997 Opts.SanitizeRecover); 1998 parseSanitizerKinds("-fsanitize-trap=", 1999 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2000 Opts.SanitizeTrap); 2001 2002 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2003 2004 if (Args.hasArg(options::OPT_ffinite_loops)) 2005 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2006 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2007 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2008 2009 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2010 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2011 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2012 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2013 2014 return Diags.getNumErrors() == NumErrorsBefore; 2015 } 2016 2017 static void 2018 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2019 SmallVectorImpl<const char *> &Args, 2020 CompilerInvocation::StringAllocator SA) { 2021 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2022 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2023 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2024 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2025 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2026 MERGER, EXTRACTOR, TABLE_INDEX) \ 2027 GENERATE_OPTION_WITH_MARSHALLING( \ 2028 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2029 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2030 #include "clang/Driver/Options.inc" 2031 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2032 2033 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2034 GenerateArg(Args, OPT_show_includes, SA); 2035 2036 for (const auto &Dep : Opts.ExtraDeps) { 2037 switch (Dep.second) { 2038 case EDK_SanitizeIgnorelist: 2039 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2040 continue; 2041 case EDK_ModuleFile: 2042 // Module file arguments are generated from FrontendOptions and 2043 // HeaderSearchOptions. 2044 continue; 2045 case EDK_ProfileList: 2046 // Profile list arguments are generated from LanguageOptions via the 2047 // marshalling infrastructure. 2048 continue; 2049 case EDK_DepFileEntry: 2050 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2051 break; 2052 } 2053 } 2054 } 2055 2056 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2057 ArgList &Args, DiagnosticsEngine &Diags, 2058 frontend::ActionKind Action, 2059 bool ShowLineMarkers) { 2060 unsigned NumErrorsBefore = Diags.getNumErrors(); 2061 2062 DependencyOutputOptions &DependencyOutputOpts = Opts; 2063 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2064 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2065 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2066 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2067 MERGER, EXTRACTOR, TABLE_INDEX) \ 2068 PARSE_OPTION_WITH_MARSHALLING( \ 2069 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2070 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2071 #include "clang/Driver/Options.inc" 2072 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2073 2074 if (Args.hasArg(OPT_show_includes)) { 2075 // Writing both /showIncludes and preprocessor output to stdout 2076 // would produce interleaved output, so use stderr for /showIncludes. 2077 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2078 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2079 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2080 else 2081 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2082 } else { 2083 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2084 } 2085 2086 // Add sanitizer ignorelists as extra dependencies. 2087 // They won't be discovered by the regular preprocessor, so 2088 // we let make / ninja to know about this implicit dependency. 2089 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2090 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2091 StringRef Val = A->getValue(); 2092 if (!Val.contains('=')) 2093 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2094 } 2095 if (Opts.IncludeSystemHeaders) { 2096 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2097 StringRef Val = A->getValue(); 2098 if (!Val.contains('=')) 2099 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2100 } 2101 } 2102 } 2103 2104 // -fprofile-list= dependencies. 2105 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2106 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2107 2108 // Propagate the extra dependencies. 2109 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2110 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2111 2112 // Only the -fmodule-file=<file> form. 2113 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2114 StringRef Val = A->getValue(); 2115 if (!Val.contains('=')) 2116 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2117 } 2118 2119 return Diags.getNumErrors() == NumErrorsBefore; 2120 } 2121 2122 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2123 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2124 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2125 // Support both clang's -f[no-]color-diagnostics and gcc's 2126 // -f[no-]diagnostics-colors[=never|always|auto]. 2127 enum { 2128 Colors_On, 2129 Colors_Off, 2130 Colors_Auto 2131 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2132 for (auto *A : Args) { 2133 const Option &O = A->getOption(); 2134 if (O.matches(options::OPT_fcolor_diagnostics)) { 2135 ShowColors = Colors_On; 2136 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2137 ShowColors = Colors_Off; 2138 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2139 StringRef Value(A->getValue()); 2140 if (Value == "always") 2141 ShowColors = Colors_On; 2142 else if (Value == "never") 2143 ShowColors = Colors_Off; 2144 else if (Value == "auto") 2145 ShowColors = Colors_Auto; 2146 } 2147 } 2148 return ShowColors == Colors_On || 2149 (ShowColors == Colors_Auto && 2150 llvm::sys::Process::StandardErrHasColors()); 2151 } 2152 2153 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2154 DiagnosticsEngine &Diags) { 2155 bool Success = true; 2156 for (const auto &Prefix : VerifyPrefixes) { 2157 // Every prefix must start with a letter and contain only alphanumeric 2158 // characters, hyphens, and underscores. 2159 auto BadChar = llvm::find_if(Prefix, [](char C) { 2160 return !isAlphanumeric(C) && C != '-' && C != '_'; 2161 }); 2162 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2163 Success = false; 2164 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2165 Diags.Report(diag::note_drv_verify_prefix_spelling); 2166 } 2167 } 2168 return Success; 2169 } 2170 2171 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2172 SmallVectorImpl<const char *> &Args, 2173 CompilerInvocation::StringAllocator SA) { 2174 const FileSystemOptions &FileSystemOpts = Opts; 2175 2176 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2177 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2178 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2179 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2180 MERGER, EXTRACTOR, TABLE_INDEX) \ 2181 GENERATE_OPTION_WITH_MARSHALLING( \ 2182 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2183 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2184 #include "clang/Driver/Options.inc" 2185 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2186 } 2187 2188 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2189 DiagnosticsEngine &Diags) { 2190 unsigned NumErrorsBefore = Diags.getNumErrors(); 2191 2192 FileSystemOptions &FileSystemOpts = Opts; 2193 2194 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2195 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2196 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2197 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2198 MERGER, EXTRACTOR, TABLE_INDEX) \ 2199 PARSE_OPTION_WITH_MARSHALLING( \ 2200 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2201 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2202 #include "clang/Driver/Options.inc" 2203 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2204 2205 return Diags.getNumErrors() == NumErrorsBefore; 2206 } 2207 2208 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2209 SmallVectorImpl<const char *> &Args, 2210 CompilerInvocation::StringAllocator SA) { 2211 const MigratorOptions &MigratorOpts = Opts; 2212 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2213 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2214 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2215 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2216 MERGER, EXTRACTOR, TABLE_INDEX) \ 2217 GENERATE_OPTION_WITH_MARSHALLING( \ 2218 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2219 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2220 #include "clang/Driver/Options.inc" 2221 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2222 } 2223 2224 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2225 DiagnosticsEngine &Diags) { 2226 unsigned NumErrorsBefore = Diags.getNumErrors(); 2227 2228 MigratorOptions &MigratorOpts = Opts; 2229 2230 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2231 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2232 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2233 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2234 MERGER, EXTRACTOR, TABLE_INDEX) \ 2235 PARSE_OPTION_WITH_MARSHALLING( \ 2236 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2237 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2238 #include "clang/Driver/Options.inc" 2239 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2240 2241 return Diags.getNumErrors() == NumErrorsBefore; 2242 } 2243 2244 void CompilerInvocation::GenerateDiagnosticArgs( 2245 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2246 StringAllocator SA, bool DefaultDiagColor) { 2247 const DiagnosticOptions *DiagnosticOpts = &Opts; 2248 #define DIAG_OPTION_WITH_MARSHALLING( \ 2249 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2250 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2251 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2252 MERGER, EXTRACTOR, TABLE_INDEX) \ 2253 GENERATE_OPTION_WITH_MARSHALLING( \ 2254 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2255 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2256 #include "clang/Driver/Options.inc" 2257 #undef DIAG_OPTION_WITH_MARSHALLING 2258 2259 if (!Opts.DiagnosticSerializationFile.empty()) 2260 GenerateArg(Args, OPT_diagnostic_serialized_file, 2261 Opts.DiagnosticSerializationFile, SA); 2262 2263 if (Opts.ShowColors) 2264 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2265 2266 if (Opts.VerifyDiagnostics && 2267 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2268 GenerateArg(Args, OPT_verify, SA); 2269 2270 for (const auto &Prefix : Opts.VerifyPrefixes) 2271 if (Prefix != "expected") 2272 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2273 2274 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2275 if (VIU == DiagnosticLevelMask::None) { 2276 // This is the default, don't generate anything. 2277 } else if (VIU == DiagnosticLevelMask::All) { 2278 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2279 } else { 2280 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2281 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2282 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2283 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2284 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2285 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2286 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2287 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2288 } 2289 2290 for (const auto &Warning : Opts.Warnings) { 2291 // This option is automatically generated from UndefPrefixes. 2292 if (Warning == "undef-prefix") 2293 continue; 2294 Args.push_back(SA(StringRef("-W") + Warning)); 2295 } 2296 2297 for (const auto &Remark : Opts.Remarks) { 2298 // These arguments are generated from OptimizationRemark fields of 2299 // CodeGenOptions. 2300 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2301 "pass-analysis", "no-pass-analysis", 2302 "pass-missed", "no-pass-missed"}; 2303 if (llvm::is_contained(IgnoredRemarks, Remark)) 2304 continue; 2305 2306 Args.push_back(SA(StringRef("-R") + Remark)); 2307 } 2308 } 2309 2310 std::unique_ptr<DiagnosticOptions> 2311 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2312 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2313 unsigned MissingArgIndex, MissingArgCount; 2314 InputArgList Args = getDriverOptTable().ParseArgs( 2315 Argv.slice(1), MissingArgIndex, MissingArgCount); 2316 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2317 // Any errors that would be diagnosed here will also be diagnosed later, 2318 // when the DiagnosticsEngine actually exists. 2319 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2320 return DiagOpts; 2321 } 2322 2323 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2324 DiagnosticsEngine *Diags, 2325 bool DefaultDiagColor) { 2326 Optional<DiagnosticsEngine> IgnoringDiags; 2327 if (!Diags) { 2328 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2329 new IgnoringDiagConsumer()); 2330 Diags = &*IgnoringDiags; 2331 } 2332 2333 unsigned NumErrorsBefore = Diags->getNumErrors(); 2334 2335 // The key paths of diagnostic options defined in Options.td start with 2336 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2337 DiagnosticOptions *DiagnosticOpts = &Opts; 2338 2339 #define DIAG_OPTION_WITH_MARSHALLING( \ 2340 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2341 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2342 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2343 MERGER, EXTRACTOR, TABLE_INDEX) \ 2344 PARSE_OPTION_WITH_MARSHALLING( \ 2345 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2346 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2347 #include "clang/Driver/Options.inc" 2348 #undef DIAG_OPTION_WITH_MARSHALLING 2349 2350 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2351 2352 if (Arg *A = 2353 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2354 Opts.DiagnosticSerializationFile = A->getValue(); 2355 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2356 2357 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2358 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2359 if (Args.hasArg(OPT_verify)) 2360 Opts.VerifyPrefixes.push_back("expected"); 2361 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2362 // then sort it to prepare for fast lookup using std::binary_search. 2363 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2364 Opts.VerifyDiagnostics = false; 2365 else 2366 llvm::sort(Opts.VerifyPrefixes); 2367 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2368 parseDiagnosticLevelMask( 2369 "-verify-ignore-unexpected=", 2370 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2371 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2372 DiagMask = DiagnosticLevelMask::All; 2373 Opts.setVerifyIgnoreUnexpected(DiagMask); 2374 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2375 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2376 Diags->Report(diag::warn_ignoring_ftabstop_value) 2377 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2378 } 2379 2380 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2381 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2382 2383 return Diags->getNumErrors() == NumErrorsBefore; 2384 } 2385 2386 /// Parse the argument to the -ftest-module-file-extension 2387 /// command-line argument. 2388 /// 2389 /// \returns true on error, false on success. 2390 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2391 std::string &BlockName, 2392 unsigned &MajorVersion, 2393 unsigned &MinorVersion, 2394 bool &Hashed, 2395 std::string &UserInfo) { 2396 SmallVector<StringRef, 5> Args; 2397 Arg.split(Args, ':', 5); 2398 if (Args.size() < 5) 2399 return true; 2400 2401 BlockName = std::string(Args[0]); 2402 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2403 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2404 if (Args[3].getAsInteger(2, Hashed)) return true; 2405 if (Args.size() > 4) 2406 UserInfo = std::string(Args[4]); 2407 return false; 2408 } 2409 2410 /// Return a table that associates command line option specifiers with the 2411 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2412 /// intentionally missing, as this case is handled separately from other 2413 /// frontend options. 2414 static const auto &getFrontendActionTable() { 2415 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2416 {frontend::ASTDeclList, OPT_ast_list}, 2417 2418 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2419 {frontend::ASTDump, OPT_ast_dump_all}, 2420 {frontend::ASTDump, OPT_ast_dump_EQ}, 2421 {frontend::ASTDump, OPT_ast_dump}, 2422 {frontend::ASTDump, OPT_ast_dump_lookups}, 2423 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2424 2425 {frontend::ASTPrint, OPT_ast_print}, 2426 {frontend::ASTView, OPT_ast_view}, 2427 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2428 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2429 {frontend::DumpTokens, OPT_dump_tokens}, 2430 {frontend::EmitAssembly, OPT_S}, 2431 {frontend::EmitBC, OPT_emit_llvm_bc}, 2432 {frontend::EmitHTML, OPT_emit_html}, 2433 {frontend::EmitLLVM, OPT_emit_llvm}, 2434 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2435 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2436 {frontend::EmitObj, OPT_emit_obj}, 2437 {frontend::ExtractAPI, OPT_extract_api}, 2438 2439 {frontend::FixIt, OPT_fixit_EQ}, 2440 {frontend::FixIt, OPT_fixit}, 2441 2442 {frontend::GenerateModule, OPT_emit_module}, 2443 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2444 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2445 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2446 {frontend::GeneratePCH, OPT_emit_pch}, 2447 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2448 {frontend::InitOnly, OPT_init_only}, 2449 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2450 {frontend::ModuleFileInfo, OPT_module_file_info}, 2451 {frontend::VerifyPCH, OPT_verify_pch}, 2452 {frontend::PrintPreamble, OPT_print_preamble}, 2453 {frontend::PrintPreprocessedInput, OPT_E}, 2454 {frontend::TemplightDump, OPT_templight_dump}, 2455 {frontend::RewriteMacros, OPT_rewrite_macros}, 2456 {frontend::RewriteObjC, OPT_rewrite_objc}, 2457 {frontend::RewriteTest, OPT_rewrite_test}, 2458 {frontend::RunAnalysis, OPT_analyze}, 2459 {frontend::MigrateSource, OPT_migrate}, 2460 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2461 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2462 OPT_print_dependency_directives_minimized_source}, 2463 }; 2464 2465 return Table; 2466 } 2467 2468 /// Maps command line option to frontend action. 2469 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2470 for (const auto &ActionOpt : getFrontendActionTable()) 2471 if (ActionOpt.second == Opt.getID()) 2472 return ActionOpt.first; 2473 2474 return None; 2475 } 2476 2477 /// Maps frontend action to command line option. 2478 static Optional<OptSpecifier> 2479 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2480 for (const auto &ActionOpt : getFrontendActionTable()) 2481 if (ActionOpt.first == ProgramAction) 2482 return OptSpecifier(ActionOpt.second); 2483 2484 return None; 2485 } 2486 2487 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2488 SmallVectorImpl<const char *> &Args, 2489 CompilerInvocation::StringAllocator SA, 2490 bool IsHeader) { 2491 const FrontendOptions &FrontendOpts = Opts; 2492 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2493 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2494 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2495 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2496 MERGER, EXTRACTOR, TABLE_INDEX) \ 2497 GENERATE_OPTION_WITH_MARSHALLING( \ 2498 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2499 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2500 #include "clang/Driver/Options.inc" 2501 #undef FRONTEND_OPTION_WITH_MARSHALLING 2502 2503 Optional<OptSpecifier> ProgramActionOpt = 2504 getProgramActionOpt(Opts.ProgramAction); 2505 2506 // Generating a simple flag covers most frontend actions. 2507 std::function<void()> GenerateProgramAction = [&]() { 2508 GenerateArg(Args, *ProgramActionOpt, SA); 2509 }; 2510 2511 if (!ProgramActionOpt) { 2512 // PluginAction is the only program action handled separately. 2513 assert(Opts.ProgramAction == frontend::PluginAction && 2514 "Frontend action without option."); 2515 GenerateProgramAction = [&]() { 2516 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2517 }; 2518 } 2519 2520 // FIXME: Simplify the complex 'AST dump' command line. 2521 if (Opts.ProgramAction == frontend::ASTDump) { 2522 GenerateProgramAction = [&]() { 2523 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2524 // marshalling infrastructure. 2525 2526 if (Opts.ASTDumpFormat != ADOF_Default) { 2527 StringRef Format; 2528 switch (Opts.ASTDumpFormat) { 2529 case ADOF_Default: 2530 llvm_unreachable("Default AST dump format."); 2531 case ADOF_JSON: 2532 Format = "json"; 2533 break; 2534 } 2535 2536 if (Opts.ASTDumpAll) 2537 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2538 if (Opts.ASTDumpDecls) 2539 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2540 } else { 2541 if (Opts.ASTDumpAll) 2542 GenerateArg(Args, OPT_ast_dump_all, SA); 2543 if (Opts.ASTDumpDecls) 2544 GenerateArg(Args, OPT_ast_dump, SA); 2545 } 2546 }; 2547 } 2548 2549 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2550 GenerateProgramAction = [&]() { 2551 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2552 }; 2553 } 2554 2555 GenerateProgramAction(); 2556 2557 for (const auto &PluginArgs : Opts.PluginArgs) { 2558 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2559 const char *Spelling = 2560 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2561 for (const auto &PluginArg : PluginArgs.second) 2562 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2563 } 2564 2565 for (const auto &Ext : Opts.ModuleFileExtensions) 2566 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2567 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2568 2569 if (!Opts.CodeCompletionAt.FileName.empty()) 2570 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2571 SA); 2572 2573 for (const auto &Plugin : Opts.Plugins) 2574 GenerateArg(Args, OPT_load, Plugin, SA); 2575 2576 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2577 2578 for (const auto &ModuleFile : Opts.ModuleFiles) 2579 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2580 2581 if (Opts.AuxTargetCPU.hasValue()) 2582 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2583 2584 if (Opts.AuxTargetFeatures.hasValue()) 2585 for (const auto &Feature : *Opts.AuxTargetFeatures) 2586 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2587 2588 { 2589 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2590 StringRef ModuleMap = 2591 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2592 StringRef HeaderUnit = ""; 2593 switch (Opts.DashX.getHeaderUnitKind()) { 2594 case InputKind::HeaderUnit_None: 2595 break; 2596 case InputKind::HeaderUnit_User: 2597 HeaderUnit = "-user"; 2598 break; 2599 case InputKind::HeaderUnit_System: 2600 HeaderUnit = "-system"; 2601 break; 2602 case InputKind::HeaderUnit_Abs: 2603 HeaderUnit = "-header-unit"; 2604 break; 2605 } 2606 StringRef Header = IsHeader ? "-header" : ""; 2607 2608 StringRef Lang; 2609 switch (Opts.DashX.getLanguage()) { 2610 case Language::C: 2611 Lang = "c"; 2612 break; 2613 case Language::OpenCL: 2614 Lang = "cl"; 2615 break; 2616 case Language::OpenCLCXX: 2617 Lang = "clcpp"; 2618 break; 2619 case Language::CUDA: 2620 Lang = "cuda"; 2621 break; 2622 case Language::HIP: 2623 Lang = "hip"; 2624 break; 2625 case Language::CXX: 2626 Lang = "c++"; 2627 break; 2628 case Language::ObjC: 2629 Lang = "objective-c"; 2630 break; 2631 case Language::ObjCXX: 2632 Lang = "objective-c++"; 2633 break; 2634 case Language::RenderScript: 2635 Lang = "renderscript"; 2636 break; 2637 case Language::Asm: 2638 Lang = "assembler-with-cpp"; 2639 break; 2640 case Language::Unknown: 2641 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2642 "Generating -x argument for unknown language (not precompiled)."); 2643 Lang = "ast"; 2644 break; 2645 case Language::LLVM_IR: 2646 Lang = "ir"; 2647 break; 2648 case Language::HLSL: 2649 Lang = "hlsl"; 2650 break; 2651 } 2652 2653 GenerateArg(Args, OPT_x, 2654 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2655 } 2656 2657 // OPT_INPUT has a unique class, generate it directly. 2658 for (const auto &Input : Opts.Inputs) 2659 Args.push_back(SA(Input.getFile())); 2660 } 2661 2662 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2663 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2664 unsigned NumErrorsBefore = Diags.getNumErrors(); 2665 2666 FrontendOptions &FrontendOpts = Opts; 2667 2668 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2669 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2670 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2671 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2672 MERGER, EXTRACTOR, TABLE_INDEX) \ 2673 PARSE_OPTION_WITH_MARSHALLING( \ 2674 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2675 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2676 #include "clang/Driver/Options.inc" 2677 #undef FRONTEND_OPTION_WITH_MARSHALLING 2678 2679 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2680 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2681 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2682 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2683 assert(ProgramAction && "Option specifier not in Action_Group."); 2684 2685 if (ProgramAction == frontend::ASTDump && 2686 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2687 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2688 .CaseLower("default", ADOF_Default) 2689 .CaseLower("json", ADOF_JSON) 2690 .Default(std::numeric_limits<unsigned>::max()); 2691 2692 if (Val != std::numeric_limits<unsigned>::max()) 2693 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2694 else { 2695 Diags.Report(diag::err_drv_invalid_value) 2696 << A->getAsString(Args) << A->getValue(); 2697 Opts.ASTDumpFormat = ADOF_Default; 2698 } 2699 } 2700 2701 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2702 Opts.FixItSuffix = A->getValue(); 2703 2704 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2705 StringRef ArgStr = 2706 Args.hasArg(OPT_interface_stub_version_EQ) 2707 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2708 : "ifs-v1"; 2709 if (ArgStr == "experimental-yaml-elf-v1" || 2710 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2711 ArgStr == "experimental-tapi-elf-v1") { 2712 std::string ErrorMessage = 2713 "Invalid interface stub format: " + ArgStr.str() + 2714 " is deprecated."; 2715 Diags.Report(diag::err_drv_invalid_value) 2716 << "Must specify a valid interface stub format type, ie: " 2717 "-interface-stub-version=ifs-v1" 2718 << ErrorMessage; 2719 ProgramAction = frontend::ParseSyntaxOnly; 2720 } else if (!ArgStr.startswith("ifs-")) { 2721 std::string ErrorMessage = 2722 "Invalid interface stub format: " + ArgStr.str() + "."; 2723 Diags.Report(diag::err_drv_invalid_value) 2724 << "Must specify a valid interface stub format type, ie: " 2725 "-interface-stub-version=ifs-v1" 2726 << ErrorMessage; 2727 ProgramAction = frontend::ParseSyntaxOnly; 2728 } 2729 } 2730 2731 Opts.ProgramAction = *ProgramAction; 2732 } 2733 2734 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2735 Opts.Plugins.emplace_back(A->getValue(0)); 2736 Opts.ProgramAction = frontend::PluginAction; 2737 Opts.ActionName = A->getValue(); 2738 } 2739 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2740 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2741 2742 for (const std::string &Arg : 2743 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2744 std::string BlockName; 2745 unsigned MajorVersion; 2746 unsigned MinorVersion; 2747 bool Hashed; 2748 std::string UserInfo; 2749 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2750 MinorVersion, Hashed, UserInfo)) { 2751 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2752 2753 continue; 2754 } 2755 2756 // Add the testing module file extension. 2757 Opts.ModuleFileExtensions.push_back( 2758 std::make_shared<TestModuleFileExtension>( 2759 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2760 } 2761 2762 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2763 Opts.CodeCompletionAt = 2764 ParsedSourceLocation::FromString(A->getValue()); 2765 if (Opts.CodeCompletionAt.FileName.empty()) 2766 Diags.Report(diag::err_drv_invalid_value) 2767 << A->getAsString(Args) << A->getValue(); 2768 } 2769 2770 Opts.Plugins = Args.getAllArgValues(OPT_load); 2771 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2772 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2773 // Only the -fmodule-file=<file> form. 2774 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2775 StringRef Val = A->getValue(); 2776 if (!Val.contains('=')) 2777 Opts.ModuleFiles.push_back(std::string(Val)); 2778 } 2779 2780 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2781 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2782 << "-emit-module"; 2783 2784 if (Args.hasArg(OPT_aux_target_cpu)) 2785 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2786 if (Args.hasArg(OPT_aux_target_feature)) 2787 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2788 2789 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2790 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2791 Diags.Report(diag::err_drv_argument_not_allowed_with) 2792 << "ARC migration" << "ObjC migration"; 2793 } 2794 2795 InputKind DashX(Language::Unknown); 2796 if (const Arg *A = Args.getLastArg(OPT_x)) { 2797 StringRef XValue = A->getValue(); 2798 2799 // Parse suffixes: 2800 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2801 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2802 bool Preprocessed = XValue.consume_back("-cpp-output"); 2803 bool ModuleMap = XValue.consume_back("-module-map"); 2804 // Detect and consume the header indicator. 2805 bool IsHeader = 2806 XValue != "precompiled-header" && XValue.consume_back("-header"); 2807 2808 // If we have c++-{user,system}-header, that indicates a header unit input 2809 // likewise, if the user put -fmodule-header together with a header with an 2810 // absolute path (header-unit-header). 2811 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2812 if (IsHeader || Preprocessed) { 2813 if (XValue.consume_back("-header-unit")) 2814 HUK = InputKind::HeaderUnit_Abs; 2815 else if (XValue.consume_back("-system")) 2816 HUK = InputKind::HeaderUnit_System; 2817 else if (XValue.consume_back("-user")) 2818 HUK = InputKind::HeaderUnit_User; 2819 } 2820 2821 // The value set by this processing is an un-preprocessed source which is 2822 // not intended to be a module map or header unit. 2823 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2824 HUK == InputKind::HeaderUnit_None; 2825 2826 // Principal languages. 2827 DashX = llvm::StringSwitch<InputKind>(XValue) 2828 .Case("c", Language::C) 2829 .Case("cl", Language::OpenCL) 2830 .Case("clcpp", Language::OpenCLCXX) 2831 .Case("cuda", Language::CUDA) 2832 .Case("hip", Language::HIP) 2833 .Case("c++", Language::CXX) 2834 .Case("objective-c", Language::ObjC) 2835 .Case("objective-c++", Language::ObjCXX) 2836 .Case("renderscript", Language::RenderScript) 2837 .Case("hlsl", Language::HLSL) 2838 .Default(Language::Unknown); 2839 2840 // "objc[++]-cpp-output" is an acceptable synonym for 2841 // "objective-c[++]-cpp-output". 2842 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2843 HUK == InputKind::HeaderUnit_None) 2844 DashX = llvm::StringSwitch<InputKind>(XValue) 2845 .Case("objc", Language::ObjC) 2846 .Case("objc++", Language::ObjCXX) 2847 .Default(Language::Unknown); 2848 2849 // Some special cases cannot be combined with suffixes. 2850 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2851 HUK == InputKind::HeaderUnit_None) 2852 DashX = llvm::StringSwitch<InputKind>(XValue) 2853 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2854 .Case("assembler-with-cpp", Language::Asm) 2855 .Cases("ast", "pcm", "precompiled-header", 2856 InputKind(Language::Unknown, InputKind::Precompiled)) 2857 .Case("ir", Language::LLVM_IR) 2858 .Default(Language::Unknown); 2859 2860 if (DashX.isUnknown()) 2861 Diags.Report(diag::err_drv_invalid_value) 2862 << A->getAsString(Args) << A->getValue(); 2863 2864 if (Preprocessed) 2865 DashX = DashX.getPreprocessed(); 2866 // A regular header is considered mutually exclusive with a header unit. 2867 if (HUK != InputKind::HeaderUnit_None) { 2868 DashX = DashX.withHeaderUnit(HUK); 2869 IsHeaderFile = true; 2870 } else if (IsHeaderFile) 2871 DashX = DashX.getHeader(); 2872 if (ModuleMap) 2873 DashX = DashX.withFormat(InputKind::ModuleMap); 2874 } 2875 2876 // '-' is the default input if none is given. 2877 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2878 Opts.Inputs.clear(); 2879 if (Inputs.empty()) 2880 Inputs.push_back("-"); 2881 2882 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2883 Inputs.size() > 1) 2884 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2885 2886 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2887 InputKind IK = DashX; 2888 if (IK.isUnknown()) { 2889 IK = FrontendOptions::getInputKindForExtension( 2890 StringRef(Inputs[i]).rsplit('.').second); 2891 // FIXME: Warn on this? 2892 if (IK.isUnknown()) 2893 IK = Language::C; 2894 // FIXME: Remove this hack. 2895 if (i == 0) 2896 DashX = IK; 2897 } 2898 2899 bool IsSystem = false; 2900 2901 // The -emit-module action implicitly takes a module map. 2902 if (Opts.ProgramAction == frontend::GenerateModule && 2903 IK.getFormat() == InputKind::Source) { 2904 IK = IK.withFormat(InputKind::ModuleMap); 2905 IsSystem = Opts.IsSystemModule; 2906 } 2907 2908 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2909 } 2910 2911 Opts.DashX = DashX; 2912 2913 return Diags.getNumErrors() == NumErrorsBefore; 2914 } 2915 2916 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2917 void *MainAddr) { 2918 std::string ClangExecutable = 2919 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2920 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2921 } 2922 2923 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2924 SmallVectorImpl<const char *> &Args, 2925 CompilerInvocation::StringAllocator SA) { 2926 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2927 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2928 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2929 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2930 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2931 MERGER, EXTRACTOR, TABLE_INDEX) \ 2932 GENERATE_OPTION_WITH_MARSHALLING( \ 2933 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2934 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2935 #include "clang/Driver/Options.inc" 2936 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2937 2938 if (Opts.UseLibcxx) 2939 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2940 2941 if (!Opts.ModuleCachePath.empty()) 2942 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2943 2944 for (const auto &File : Opts.PrebuiltModuleFiles) 2945 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2946 2947 for (const auto &Path : Opts.PrebuiltModulePaths) 2948 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2949 2950 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2951 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2952 2953 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2954 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2955 llvm::Optional<bool> IsFramework, 2956 llvm::Optional<bool> IgnoreSysRoot) { 2957 return llvm::is_contained(Groups, Entry.Group) && 2958 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2959 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2960 }; 2961 2962 auto It = Opts.UserEntries.begin(); 2963 auto End = Opts.UserEntries.end(); 2964 2965 // Add -I..., -F..., and -index-header-map options in order. 2966 for (; It < End && 2967 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2968 ++It) { 2969 OptSpecifier Opt = [It, Matches]() { 2970 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2971 return OPT_F; 2972 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2973 return OPT_I; 2974 if (Matches(*It, frontend::Angled, true, true)) 2975 return OPT_F; 2976 if (Matches(*It, frontend::Angled, false, true)) 2977 return OPT_I; 2978 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2979 }(); 2980 2981 if (It->Group == frontend::IndexHeaderMap) 2982 GenerateArg(Args, OPT_index_header_map, SA); 2983 GenerateArg(Args, Opt, It->Path, SA); 2984 }; 2985 2986 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2987 // have already been generated as "-I[xx]yy". If that's the case, their 2988 // position on command line was such that this has no semantic impact on 2989 // include paths. 2990 for (; It < End && 2991 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2992 ++It) { 2993 OptSpecifier Opt = 2994 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2995 GenerateArg(Args, Opt, It->Path, SA); 2996 } 2997 2998 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2999 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3000 // command line was such that this has no semantic impact on include paths. 3001 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3002 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3003 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3004 GenerateArg(Args, OPT_iquote, It->Path, SA); 3005 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3006 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3007 It->Path, SA); 3008 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3009 GenerateArg(Args, OPT_iframework, It->Path, SA); 3010 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3011 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3012 3013 // Add the paths for the various language specific isystem flags. 3014 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3015 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3016 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3017 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3018 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3019 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3020 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3021 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3022 3023 // Add the internal paths from a driver that detects standard include paths. 3024 // Note: Some paths that came from "-internal-isystem" arguments may have 3025 // already been generated as "-isystem". If that's the case, their position on 3026 // command line was such that this has no semantic impact on include paths. 3027 for (; It < End && 3028 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3029 ++It) { 3030 OptSpecifier Opt = It->Group == frontend::System 3031 ? OPT_internal_isystem 3032 : OPT_internal_externc_isystem; 3033 GenerateArg(Args, Opt, It->Path, SA); 3034 } 3035 3036 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3037 3038 // Add the path prefixes which are implicitly treated as being system headers. 3039 for (const auto &P : Opts.SystemHeaderPrefixes) { 3040 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3041 : OPT_no_system_header_prefix; 3042 GenerateArg(Args, Opt, P.Prefix, SA); 3043 } 3044 3045 for (const std::string &F : Opts.VFSOverlayFiles) 3046 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3047 } 3048 3049 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3050 DiagnosticsEngine &Diags, 3051 const std::string &WorkingDir) { 3052 unsigned NumErrorsBefore = Diags.getNumErrors(); 3053 3054 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3055 3056 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3057 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3058 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3059 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3060 MERGER, EXTRACTOR, TABLE_INDEX) \ 3061 PARSE_OPTION_WITH_MARSHALLING( \ 3062 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3063 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3064 #include "clang/Driver/Options.inc" 3065 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3066 3067 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3068 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3069 3070 // Canonicalize -fmodules-cache-path before storing it. 3071 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3072 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3073 if (WorkingDir.empty()) 3074 llvm::sys::fs::make_absolute(P); 3075 else 3076 llvm::sys::fs::make_absolute(WorkingDir, P); 3077 } 3078 llvm::sys::path::remove_dots(P); 3079 Opts.ModuleCachePath = std::string(P.str()); 3080 3081 // Only the -fmodule-file=<name>=<file> form. 3082 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3083 StringRef Val = A->getValue(); 3084 if (Val.contains('=')) { 3085 auto Split = Val.split('='); 3086 Opts.PrebuiltModuleFiles.insert( 3087 {std::string(Split.first), std::string(Split.second)}); 3088 } 3089 } 3090 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3091 Opts.AddPrebuiltModulePath(A->getValue()); 3092 3093 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3094 StringRef MacroDef = A->getValue(); 3095 Opts.ModulesIgnoreMacros.insert( 3096 llvm::CachedHashString(MacroDef.split('=').first)); 3097 } 3098 3099 // Add -I..., -F..., and -index-header-map options in order. 3100 bool IsIndexHeaderMap = false; 3101 bool IsSysrootSpecified = 3102 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3103 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3104 if (A->getOption().matches(OPT_index_header_map)) { 3105 // -index-header-map applies to the next -I or -F. 3106 IsIndexHeaderMap = true; 3107 continue; 3108 } 3109 3110 frontend::IncludeDirGroup Group = 3111 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3112 3113 bool IsFramework = A->getOption().matches(OPT_F); 3114 std::string Path = A->getValue(); 3115 3116 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3117 SmallString<32> Buffer; 3118 llvm::sys::path::append(Buffer, Opts.Sysroot, 3119 llvm::StringRef(A->getValue()).substr(1)); 3120 Path = std::string(Buffer.str()); 3121 } 3122 3123 Opts.AddPath(Path, Group, IsFramework, 3124 /*IgnoreSysroot*/ true); 3125 IsIndexHeaderMap = false; 3126 } 3127 3128 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3129 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3130 for (const auto *A : 3131 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3132 if (A->getOption().matches(OPT_iprefix)) 3133 Prefix = A->getValue(); 3134 else if (A->getOption().matches(OPT_iwithprefix)) 3135 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3136 else 3137 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3138 } 3139 3140 for (const auto *A : Args.filtered(OPT_idirafter)) 3141 Opts.AddPath(A->getValue(), frontend::After, false, true); 3142 for (const auto *A : Args.filtered(OPT_iquote)) 3143 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3144 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3145 Opts.AddPath(A->getValue(), frontend::System, false, 3146 !A->getOption().matches(OPT_iwithsysroot)); 3147 for (const auto *A : Args.filtered(OPT_iframework)) 3148 Opts.AddPath(A->getValue(), frontend::System, true, true); 3149 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3150 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3151 /*IgnoreSysRoot=*/false); 3152 3153 // Add the paths for the various language specific isystem flags. 3154 for (const auto *A : Args.filtered(OPT_c_isystem)) 3155 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3156 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3157 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3158 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3159 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3160 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3161 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3162 3163 // Add the internal paths from a driver that detects standard include paths. 3164 for (const auto *A : 3165 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3166 frontend::IncludeDirGroup Group = frontend::System; 3167 if (A->getOption().matches(OPT_internal_externc_isystem)) 3168 Group = frontend::ExternCSystem; 3169 Opts.AddPath(A->getValue(), Group, false, true); 3170 } 3171 3172 // Add the path prefixes which are implicitly treated as being system headers. 3173 for (const auto *A : 3174 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3175 Opts.AddSystemHeaderPrefix( 3176 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3177 3178 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3179 Opts.AddVFSOverlayFile(A->getValue()); 3180 3181 return Diags.getNumErrors() == NumErrorsBefore; 3182 } 3183 3184 /// Check if input file kind and language standard are compatible. 3185 static bool IsInputCompatibleWithStandard(InputKind IK, 3186 const LangStandard &S) { 3187 switch (IK.getLanguage()) { 3188 case Language::Unknown: 3189 case Language::LLVM_IR: 3190 llvm_unreachable("should not parse language flags for this input"); 3191 3192 case Language::C: 3193 case Language::ObjC: 3194 case Language::RenderScript: 3195 return S.getLanguage() == Language::C; 3196 3197 case Language::OpenCL: 3198 return S.getLanguage() == Language::OpenCL || 3199 S.getLanguage() == Language::OpenCLCXX; 3200 3201 case Language::OpenCLCXX: 3202 return S.getLanguage() == Language::OpenCLCXX; 3203 3204 case Language::CXX: 3205 case Language::ObjCXX: 3206 return S.getLanguage() == Language::CXX; 3207 3208 case Language::CUDA: 3209 // FIXME: What -std= values should be permitted for CUDA compilations? 3210 return S.getLanguage() == Language::CUDA || 3211 S.getLanguage() == Language::CXX; 3212 3213 case Language::HIP: 3214 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3215 3216 case Language::Asm: 3217 // Accept (and ignore) all -std= values. 3218 // FIXME: The -std= value is not ignored; it affects the tokenization 3219 // and preprocessing rules if we're preprocessing this asm input. 3220 return true; 3221 3222 case Language::HLSL: 3223 return S.getLanguage() == Language::HLSL; 3224 } 3225 3226 llvm_unreachable("unexpected input language"); 3227 } 3228 3229 /// Get language name for given input kind. 3230 static StringRef GetInputKindName(InputKind IK) { 3231 switch (IK.getLanguage()) { 3232 case Language::C: 3233 return "C"; 3234 case Language::ObjC: 3235 return "Objective-C"; 3236 case Language::CXX: 3237 return "C++"; 3238 case Language::ObjCXX: 3239 return "Objective-C++"; 3240 case Language::OpenCL: 3241 return "OpenCL"; 3242 case Language::OpenCLCXX: 3243 return "C++ for OpenCL"; 3244 case Language::CUDA: 3245 return "CUDA"; 3246 case Language::RenderScript: 3247 return "RenderScript"; 3248 case Language::HIP: 3249 return "HIP"; 3250 3251 case Language::Asm: 3252 return "Asm"; 3253 case Language::LLVM_IR: 3254 return "LLVM IR"; 3255 3256 case Language::HLSL: 3257 return "HLSL"; 3258 3259 case Language::Unknown: 3260 break; 3261 } 3262 llvm_unreachable("unknown input language"); 3263 } 3264 3265 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3266 SmallVectorImpl<const char *> &Args, 3267 StringAllocator SA, 3268 const llvm::Triple &T, InputKind IK) { 3269 if (IK.getFormat() == InputKind::Precompiled || 3270 IK.getLanguage() == Language::LLVM_IR) { 3271 if (Opts.ObjCAutoRefCount) 3272 GenerateArg(Args, OPT_fobjc_arc, SA); 3273 if (Opts.PICLevel != 0) 3274 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3275 if (Opts.PIE) 3276 GenerateArg(Args, OPT_pic_is_pie, SA); 3277 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3278 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3279 3280 return; 3281 } 3282 3283 OptSpecifier StdOpt; 3284 switch (Opts.LangStd) { 3285 case LangStandard::lang_opencl10: 3286 case LangStandard::lang_opencl11: 3287 case LangStandard::lang_opencl12: 3288 case LangStandard::lang_opencl20: 3289 case LangStandard::lang_opencl30: 3290 case LangStandard::lang_openclcpp10: 3291 case LangStandard::lang_openclcpp2021: 3292 StdOpt = OPT_cl_std_EQ; 3293 break; 3294 default: 3295 StdOpt = OPT_std_EQ; 3296 break; 3297 } 3298 3299 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3300 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3301 3302 if (Opts.IncludeDefaultHeader) 3303 GenerateArg(Args, OPT_finclude_default_header, SA); 3304 if (Opts.DeclareOpenCLBuiltins) 3305 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3306 3307 const LangOptions *LangOpts = &Opts; 3308 3309 #define LANG_OPTION_WITH_MARSHALLING( \ 3310 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3311 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3312 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3313 MERGER, EXTRACTOR, TABLE_INDEX) \ 3314 GENERATE_OPTION_WITH_MARSHALLING( \ 3315 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3316 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3317 #include "clang/Driver/Options.inc" 3318 #undef LANG_OPTION_WITH_MARSHALLING 3319 3320 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3321 3322 if (Opts.ObjC) { 3323 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3324 3325 if (Opts.GC == LangOptions::GCOnly) 3326 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3327 else if (Opts.GC == LangOptions::HybridGC) 3328 GenerateArg(Args, OPT_fobjc_gc, SA); 3329 else if (Opts.ObjCAutoRefCount == 1) 3330 GenerateArg(Args, OPT_fobjc_arc, SA); 3331 3332 if (Opts.ObjCWeakRuntime) 3333 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3334 3335 if (Opts.ObjCWeak) 3336 GenerateArg(Args, OPT_fobjc_weak, SA); 3337 3338 if (Opts.ObjCSubscriptingLegacyRuntime) 3339 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3340 } 3341 3342 if (Opts.GNUCVersion != 0) { 3343 unsigned Major = Opts.GNUCVersion / 100 / 100; 3344 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3345 unsigned Patch = Opts.GNUCVersion % 100; 3346 GenerateArg(Args, OPT_fgnuc_version_EQ, 3347 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3348 } 3349 3350 if (Opts.IgnoreXCOFFVisibility) 3351 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3352 3353 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3354 GenerateArg(Args, OPT_ftrapv, SA); 3355 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3356 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3357 GenerateArg(Args, OPT_fwrapv, SA); 3358 } 3359 3360 if (Opts.MSCompatibilityVersion != 0) { 3361 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3362 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3363 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3364 GenerateArg(Args, OPT_fms_compatibility_version, 3365 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3366 } 3367 3368 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3369 if (!Opts.Trigraphs) 3370 GenerateArg(Args, OPT_fno_trigraphs, SA); 3371 } else { 3372 if (Opts.Trigraphs) 3373 GenerateArg(Args, OPT_ftrigraphs, SA); 3374 } 3375 3376 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3377 GenerateArg(Args, OPT_fblocks, SA); 3378 3379 if (Opts.ConvergentFunctions && 3380 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3381 GenerateArg(Args, OPT_fconvergent_functions, SA); 3382 3383 if (Opts.NoBuiltin && !Opts.Freestanding) 3384 GenerateArg(Args, OPT_fno_builtin, SA); 3385 3386 if (!Opts.NoBuiltin) 3387 for (const auto &Func : Opts.NoBuiltinFuncs) 3388 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3389 3390 if (Opts.LongDoubleSize == 128) 3391 GenerateArg(Args, OPT_mlong_double_128, SA); 3392 else if (Opts.LongDoubleSize == 64) 3393 GenerateArg(Args, OPT_mlong_double_64, SA); 3394 else if (Opts.LongDoubleSize == 80) 3395 GenerateArg(Args, OPT_mlong_double_80, SA); 3396 3397 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3398 3399 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3400 // '-fopenmp-targets='. 3401 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3402 GenerateArg(Args, OPT_fopenmp, SA); 3403 3404 if (Opts.OpenMP != 50) 3405 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3406 3407 if (!Opts.OpenMPUseTLS) 3408 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3409 3410 if (Opts.OpenMPIsDevice) 3411 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3412 3413 if (Opts.OpenMPIRBuilder) 3414 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3415 } 3416 3417 if (Opts.OpenMPSimd) { 3418 GenerateArg(Args, OPT_fopenmp_simd, SA); 3419 3420 if (Opts.OpenMP != 50) 3421 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3422 } 3423 3424 if (Opts.OpenMPThreadSubscription) 3425 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3426 3427 if (Opts.OpenMPTeamSubscription) 3428 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3429 3430 if (Opts.OpenMPTargetDebug != 0) 3431 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3432 Twine(Opts.OpenMPTargetDebug), SA); 3433 3434 if (Opts.OpenMPCUDANumSMs != 0) 3435 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3436 Twine(Opts.OpenMPCUDANumSMs), SA); 3437 3438 if (Opts.OpenMPCUDABlocksPerSM != 0) 3439 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3440 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3441 3442 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3443 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3444 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3445 3446 if (!Opts.OMPTargetTriples.empty()) { 3447 std::string Targets; 3448 llvm::raw_string_ostream OS(Targets); 3449 llvm::interleave( 3450 Opts.OMPTargetTriples, OS, 3451 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3452 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3453 } 3454 3455 if (!Opts.OMPHostIRFile.empty()) 3456 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3457 3458 if (Opts.OpenMPCUDAMode) 3459 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3460 3461 if (Opts.OpenMPCUDAForceFullRuntime) 3462 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3463 3464 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3465 // generated from CodeGenOptions. 3466 3467 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3468 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3469 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3470 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3471 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3472 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3473 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3474 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3475 3476 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3477 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3478 3479 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3480 for (const std::string &F : Opts.NoSanitizeFiles) 3481 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3482 3483 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3484 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3485 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3486 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3487 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3488 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3489 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3490 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3491 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3492 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3493 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3494 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3495 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3496 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3497 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3498 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3499 3500 if (Opts.getSignReturnAddressScope() == 3501 LangOptions::SignReturnAddressScopeKind::All) 3502 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3503 else if (Opts.getSignReturnAddressScope() == 3504 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3505 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3506 3507 if (Opts.getSignReturnAddressKey() == 3508 LangOptions::SignReturnAddressKeyKind::BKey) 3509 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3510 3511 if (Opts.CXXABI) 3512 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3513 SA); 3514 3515 if (Opts.RelativeCXXABIVTables) 3516 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3517 else 3518 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3519 3520 if (Opts.UseTargetPathSeparator) 3521 GenerateArg(Args, OPT_ffile_reproducible, SA); 3522 else 3523 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3524 3525 for (const auto &MP : Opts.MacroPrefixMap) 3526 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3527 3528 if (!Opts.RandstructSeed.empty()) 3529 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3530 } 3531 3532 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3533 InputKind IK, const llvm::Triple &T, 3534 std::vector<std::string> &Includes, 3535 DiagnosticsEngine &Diags) { 3536 unsigned NumErrorsBefore = Diags.getNumErrors(); 3537 3538 if (IK.getFormat() == InputKind::Precompiled || 3539 IK.getLanguage() == Language::LLVM_IR) { 3540 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3541 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3542 // what the input type is. 3543 if (Args.hasArg(OPT_fobjc_arc)) 3544 Opts.ObjCAutoRefCount = 1; 3545 // PICLevel and PIELevel are needed during code generation and this should 3546 // be set regardless of the input type. 3547 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3548 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3549 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3550 Diags, Opts.Sanitize); 3551 3552 return Diags.getNumErrors() == NumErrorsBefore; 3553 } 3554 3555 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3556 // FIXME: Should we really be parsing this for an Language::Asm input? 3557 3558 // FIXME: Cleanup per-file based stuff. 3559 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3560 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3561 LangStd = LangStandard::getLangKind(A->getValue()); 3562 if (LangStd == LangStandard::lang_unspecified) { 3563 Diags.Report(diag::err_drv_invalid_value) 3564 << A->getAsString(Args) << A->getValue(); 3565 // Report supported standards with short description. 3566 for (unsigned KindValue = 0; 3567 KindValue != LangStandard::lang_unspecified; 3568 ++KindValue) { 3569 const LangStandard &Std = LangStandard::getLangStandardForKind( 3570 static_cast<LangStandard::Kind>(KindValue)); 3571 if (IsInputCompatibleWithStandard(IK, Std)) { 3572 auto Diag = Diags.Report(diag::note_drv_use_standard); 3573 Diag << Std.getName() << Std.getDescription(); 3574 unsigned NumAliases = 0; 3575 #define LANGSTANDARD(id, name, lang, desc, features) 3576 #define LANGSTANDARD_ALIAS(id, alias) \ 3577 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3578 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3579 #include "clang/Basic/LangStandards.def" 3580 Diag << NumAliases; 3581 #define LANGSTANDARD(id, name, lang, desc, features) 3582 #define LANGSTANDARD_ALIAS(id, alias) \ 3583 if (KindValue == LangStandard::lang_##id) Diag << alias; 3584 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3585 #include "clang/Basic/LangStandards.def" 3586 } 3587 } 3588 } else { 3589 // Valid standard, check to make sure language and standard are 3590 // compatible. 3591 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3592 if (!IsInputCompatibleWithStandard(IK, Std)) { 3593 Diags.Report(diag::err_drv_argument_not_allowed_with) 3594 << A->getAsString(Args) << GetInputKindName(IK); 3595 } 3596 } 3597 } 3598 3599 // -cl-std only applies for OpenCL language standards. 3600 // Override the -std option in this case. 3601 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3602 LangStandard::Kind OpenCLLangStd 3603 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3604 .Cases("cl", "CL", LangStandard::lang_opencl10) 3605 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3606 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3607 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3608 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3609 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3610 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3611 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3612 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3613 .Default(LangStandard::lang_unspecified); 3614 3615 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3616 Diags.Report(diag::err_drv_invalid_value) 3617 << A->getAsString(Args) << A->getValue(); 3618 } 3619 else 3620 LangStd = OpenCLLangStd; 3621 } 3622 3623 // These need to be parsed now. They are used to set OpenCL defaults. 3624 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3625 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3626 3627 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3628 3629 // The key paths of codegen options defined in Options.td start with 3630 // "LangOpts->". Let's provide the expected variable name and type. 3631 LangOptions *LangOpts = &Opts; 3632 3633 #define LANG_OPTION_WITH_MARSHALLING( \ 3634 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3635 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3636 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3637 MERGER, EXTRACTOR, TABLE_INDEX) \ 3638 PARSE_OPTION_WITH_MARSHALLING( \ 3639 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3640 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3641 #include "clang/Driver/Options.inc" 3642 #undef LANG_OPTION_WITH_MARSHALLING 3643 3644 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3645 StringRef Name = A->getValue(); 3646 if (Name == "full" || Name == "branch") { 3647 Opts.CFProtectionBranch = 1; 3648 } 3649 } 3650 3651 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3652 !Args.hasArg(OPT_sycl_std_EQ)) { 3653 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3654 // provide -sycl-std=, we want to default it to whatever the default SYCL 3655 // version is. I could not find a way to express this with the options 3656 // tablegen because we still want this value to be SYCL_None when the user 3657 // is not in device or host mode. 3658 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3659 } 3660 3661 if (Opts.ObjC) { 3662 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3663 StringRef value = arg->getValue(); 3664 if (Opts.ObjCRuntime.tryParse(value)) 3665 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3666 } 3667 3668 if (Args.hasArg(OPT_fobjc_gc_only)) 3669 Opts.setGC(LangOptions::GCOnly); 3670 else if (Args.hasArg(OPT_fobjc_gc)) 3671 Opts.setGC(LangOptions::HybridGC); 3672 else if (Args.hasArg(OPT_fobjc_arc)) { 3673 Opts.ObjCAutoRefCount = 1; 3674 if (!Opts.ObjCRuntime.allowsARC()) 3675 Diags.Report(diag::err_arc_unsupported_on_runtime); 3676 } 3677 3678 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3679 // whether the feature is actually enabled. This is predominantly 3680 // determined by -fobjc-runtime, but we allow it to be overridden 3681 // from the command line for testing purposes. 3682 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3683 Opts.ObjCWeakRuntime = 1; 3684 else 3685 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3686 3687 // ObjCWeak determines whether __weak is actually enabled. 3688 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3689 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3690 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3691 assert(!Opts.ObjCWeak); 3692 } else if (Opts.getGC() != LangOptions::NonGC) { 3693 Diags.Report(diag::err_objc_weak_with_gc); 3694 } else if (!Opts.ObjCWeakRuntime) { 3695 Diags.Report(diag::err_objc_weak_unsupported); 3696 } else { 3697 Opts.ObjCWeak = 1; 3698 } 3699 } else if (Opts.ObjCAutoRefCount) { 3700 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3701 } 3702 3703 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3704 Opts.ObjCSubscriptingLegacyRuntime = 3705 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3706 } 3707 3708 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3709 // Check that the version has 1 to 3 components and the minor and patch 3710 // versions fit in two decimal digits. 3711 VersionTuple GNUCVer; 3712 bool Invalid = GNUCVer.tryParse(A->getValue()); 3713 unsigned Major = GNUCVer.getMajor(); 3714 unsigned Minor = GNUCVer.getMinor().value_or(0); 3715 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3716 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3717 Diags.Report(diag::err_drv_invalid_value) 3718 << A->getAsString(Args) << A->getValue(); 3719 } 3720 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3721 } 3722 3723 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3724 Opts.IgnoreXCOFFVisibility = 1; 3725 3726 if (Args.hasArg(OPT_ftrapv)) { 3727 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3728 // Set the handler, if one is specified. 3729 Opts.OverflowHandler = 3730 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3731 } 3732 else if (Args.hasArg(OPT_fwrapv)) 3733 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3734 3735 Opts.MSCompatibilityVersion = 0; 3736 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3737 VersionTuple VT; 3738 if (VT.tryParse(A->getValue())) 3739 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3740 << A->getValue(); 3741 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3742 VT.getMinor().value_or(0) * 100000 + 3743 VT.getSubminor().value_or(0); 3744 } 3745 3746 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3747 // is specified, or -std is set to a conforming mode. 3748 // Trigraphs are disabled by default in c++1z onwards. 3749 // For z/OS, trigraphs are enabled by default (without regard to the above). 3750 Opts.Trigraphs = 3751 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3752 Opts.Trigraphs = 3753 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3754 3755 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3756 && Opts.OpenCLVersion == 200); 3757 3758 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3759 Opts.SYCLIsDevice || 3760 Args.hasArg(OPT_fconvergent_functions); 3761 3762 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3763 if (!Opts.NoBuiltin) 3764 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3765 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3766 if (A->getOption().matches(options::OPT_mlong_double_64)) 3767 Opts.LongDoubleSize = 64; 3768 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3769 Opts.LongDoubleSize = 80; 3770 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3771 Opts.LongDoubleSize = 128; 3772 else 3773 Opts.LongDoubleSize = 0; 3774 } 3775 if (Opts.FastRelaxedMath) 3776 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3777 3778 llvm::sort(Opts.ModuleFeatures); 3779 3780 // -mrtd option 3781 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3782 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3783 Diags.Report(diag::err_drv_argument_not_allowed_with) 3784 << A->getSpelling() << "-fdefault-calling-conv"; 3785 else { 3786 if (T.getArch() != llvm::Triple::x86) 3787 Diags.Report(diag::err_drv_argument_not_allowed_with) 3788 << A->getSpelling() << T.getTriple(); 3789 else 3790 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3791 } 3792 } 3793 3794 // Check if -fopenmp is specified and set default version to 5.0. 3795 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3796 // Check if -fopenmp-simd is specified. 3797 bool IsSimdSpecified = 3798 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3799 /*Default=*/false); 3800 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3801 Opts.OpenMPUseTLS = 3802 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3803 Opts.OpenMPIsDevice = 3804 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3805 Opts.OpenMPIRBuilder = 3806 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3807 bool IsTargetSpecified = 3808 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3809 3810 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3811 3812 if (Opts.OpenMP || Opts.OpenMPSimd) { 3813 if (int Version = getLastArgIntValue( 3814 Args, OPT_fopenmp_version_EQ, 3815 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3816 Opts.OpenMP = Version; 3817 // Provide diagnostic when a given target is not expected to be an OpenMP 3818 // device or host. 3819 if (!Opts.OpenMPIsDevice) { 3820 switch (T.getArch()) { 3821 default: 3822 break; 3823 // Add unsupported host targets here: 3824 case llvm::Triple::nvptx: 3825 case llvm::Triple::nvptx64: 3826 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3827 break; 3828 } 3829 } 3830 } 3831 3832 // Set the flag to prevent the implementation from emitting device exception 3833 // handling code for those requiring so. 3834 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3835 Opts.OpenCLCPlusPlus) { 3836 3837 Opts.Exceptions = 0; 3838 Opts.CXXExceptions = 0; 3839 } 3840 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3841 Opts.OpenMPCUDANumSMs = 3842 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3843 Opts.OpenMPCUDANumSMs, Diags); 3844 Opts.OpenMPCUDABlocksPerSM = 3845 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3846 Opts.OpenMPCUDABlocksPerSM, Diags); 3847 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3848 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3849 Opts.OpenMPCUDAReductionBufNum, Diags); 3850 } 3851 3852 // Set the value of the debugging flag used in the new offloading device RTL. 3853 // Set either by a specific value or to a default if not specified. 3854 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3855 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3856 Opts.OpenMPTargetDebug = getLastArgIntValue( 3857 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3858 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3859 Opts.OpenMPTargetDebug = 1; 3860 } 3861 3862 if (Opts.OpenMPIsDevice) { 3863 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3864 Opts.OpenMPTeamSubscription = true; 3865 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3866 Opts.OpenMPThreadSubscription = true; 3867 } 3868 3869 // Get the OpenMP target triples if any. 3870 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3871 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3872 auto getArchPtrSize = [](const llvm::Triple &T) { 3873 if (T.isArch16Bit()) 3874 return Arch16Bit; 3875 if (T.isArch32Bit()) 3876 return Arch32Bit; 3877 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3878 return Arch64Bit; 3879 }; 3880 3881 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3882 llvm::Triple TT(A->getValue(i)); 3883 3884 if (TT.getArch() == llvm::Triple::UnknownArch || 3885 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3886 TT.getArch() == llvm::Triple::nvptx || 3887 TT.getArch() == llvm::Triple::nvptx64 || 3888 TT.getArch() == llvm::Triple::amdgcn || 3889 TT.getArch() == llvm::Triple::x86 || 3890 TT.getArch() == llvm::Triple::x86_64)) 3891 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3892 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3893 Diags.Report(diag::err_drv_incompatible_omp_arch) 3894 << A->getValue(i) << T.str(); 3895 else 3896 Opts.OMPTargetTriples.push_back(TT); 3897 } 3898 } 3899 3900 // Get OpenMP host file path if any and report if a non existent file is 3901 // found 3902 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3903 Opts.OMPHostIRFile = A->getValue(); 3904 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3905 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3906 << Opts.OMPHostIRFile; 3907 } 3908 3909 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3910 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3911 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3912 3913 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3914 Opts.OpenMPCUDAForceFullRuntime = 3915 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3916 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3917 3918 // FIXME: Eliminate this dependency. 3919 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3920 OptSize = getOptimizationLevelSize(Args); 3921 Opts.Optimize = Opt != 0; 3922 Opts.OptimizeSize = OptSize != 0; 3923 3924 // This is the __NO_INLINE__ define, which just depends on things like the 3925 // optimization level and -fno-inline, not actually whether the backend has 3926 // inlining enabled. 3927 Opts.NoInlineDefine = !Opts.Optimize; 3928 if (Arg *InlineArg = Args.getLastArg( 3929 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3930 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3931 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3932 Opts.NoInlineDefine = true; 3933 3934 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3935 StringRef Val = A->getValue(); 3936 if (Val == "fast") 3937 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3938 else if (Val == "on") 3939 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3940 else if (Val == "off") 3941 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3942 else if (Val == "fast-honor-pragmas") 3943 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3944 else 3945 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3946 } 3947 3948 // Parse -fsanitize= arguments. 3949 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3950 Diags, Opts.Sanitize); 3951 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3952 std::vector<std::string> systemIgnorelists = 3953 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3954 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3955 systemIgnorelists.begin(), 3956 systemIgnorelists.end()); 3957 3958 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3959 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3960 3961 StringRef Ver = A->getValue(); 3962 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3963 unsigned Major, Minor = 0; 3964 3965 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3966 // y or y.0 (4 <= y <= current version). 3967 if (!VerParts.first.startswith("0") && 3968 !VerParts.first.getAsInteger(10, Major) && 3969 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3970 (Major == 3 ? VerParts.second.size() == 1 && 3971 !VerParts.second.getAsInteger(10, Minor) 3972 : VerParts.first.size() == Ver.size() || 3973 VerParts.second == "0")) { 3974 // Got a valid version number. 3975 if (Major == 3 && Minor <= 8) 3976 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3977 else if (Major <= 4) 3978 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3979 else if (Major <= 6) 3980 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3981 else if (Major <= 7) 3982 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3983 else if (Major <= 9) 3984 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3985 else if (Major <= 11) 3986 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3987 else if (Major <= 12) 3988 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 3989 else if (Major <= 14) 3990 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 3991 } else if (Ver != "latest") { 3992 Diags.Report(diag::err_drv_invalid_value) 3993 << A->getAsString(Args) << A->getValue(); 3994 } 3995 } 3996 3997 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3998 StringRef SignScope = A->getValue(); 3999 4000 if (SignScope.equals_insensitive("none")) 4001 Opts.setSignReturnAddressScope( 4002 LangOptions::SignReturnAddressScopeKind::None); 4003 else if (SignScope.equals_insensitive("all")) 4004 Opts.setSignReturnAddressScope( 4005 LangOptions::SignReturnAddressScopeKind::All); 4006 else if (SignScope.equals_insensitive("non-leaf")) 4007 Opts.setSignReturnAddressScope( 4008 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4009 else 4010 Diags.Report(diag::err_drv_invalid_value) 4011 << A->getAsString(Args) << SignScope; 4012 4013 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4014 StringRef SignKey = A->getValue(); 4015 if (!SignScope.empty() && !SignKey.empty()) { 4016 if (SignKey.equals_insensitive("a_key")) 4017 Opts.setSignReturnAddressKey( 4018 LangOptions::SignReturnAddressKeyKind::AKey); 4019 else if (SignKey.equals_insensitive("b_key")) 4020 Opts.setSignReturnAddressKey( 4021 LangOptions::SignReturnAddressKeyKind::BKey); 4022 else 4023 Diags.Report(diag::err_drv_invalid_value) 4024 << A->getAsString(Args) << SignKey; 4025 } 4026 } 4027 } 4028 4029 // The value can be empty, which indicates the system default should be used. 4030 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4031 if (!CXXABI.empty()) { 4032 if (!TargetCXXABI::isABI(CXXABI)) { 4033 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4034 } else { 4035 auto Kind = TargetCXXABI::getKind(CXXABI); 4036 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4037 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4038 else 4039 Opts.CXXABI = Kind; 4040 } 4041 } 4042 4043 Opts.RelativeCXXABIVTables = 4044 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4045 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4046 TargetCXXABI::usesRelativeVTables(T)); 4047 4048 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4049 auto Split = StringRef(A).split('='); 4050 Opts.MacroPrefixMap.insert( 4051 {std::string(Split.first), std::string(Split.second)}); 4052 } 4053 4054 Opts.UseTargetPathSeparator = 4055 !Args.getLastArg(OPT_fno_file_reproducible) && 4056 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4057 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4058 Args.getLastArg(OPT_ffile_reproducible)); 4059 4060 // Error if -mvscale-min is unbounded. 4061 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4062 unsigned VScaleMin; 4063 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4064 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4065 } 4066 4067 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4068 std::ifstream SeedFile(A->getValue(0)); 4069 4070 if (!SeedFile.is_open()) 4071 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4072 << A->getValue(0); 4073 4074 std::getline(SeedFile, Opts.RandstructSeed); 4075 } 4076 4077 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4078 Opts.RandstructSeed = A->getValue(0); 4079 4080 return Diags.getNumErrors() == NumErrorsBefore; 4081 } 4082 4083 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4084 switch (Action) { 4085 case frontend::ASTDeclList: 4086 case frontend::ASTDump: 4087 case frontend::ASTPrint: 4088 case frontend::ASTView: 4089 case frontend::EmitAssembly: 4090 case frontend::EmitBC: 4091 case frontend::EmitHTML: 4092 case frontend::EmitLLVM: 4093 case frontend::EmitLLVMOnly: 4094 case frontend::EmitCodeGenOnly: 4095 case frontend::EmitObj: 4096 case frontend::ExtractAPI: 4097 case frontend::FixIt: 4098 case frontend::GenerateModule: 4099 case frontend::GenerateModuleInterface: 4100 case frontend::GenerateHeaderModule: 4101 case frontend::GenerateHeaderUnit: 4102 case frontend::GeneratePCH: 4103 case frontend::GenerateInterfaceStubs: 4104 case frontend::ParseSyntaxOnly: 4105 case frontend::ModuleFileInfo: 4106 case frontend::VerifyPCH: 4107 case frontend::PluginAction: 4108 case frontend::RewriteObjC: 4109 case frontend::RewriteTest: 4110 case frontend::RunAnalysis: 4111 case frontend::TemplightDump: 4112 case frontend::MigrateSource: 4113 return false; 4114 4115 case frontend::DumpCompilerOptions: 4116 case frontend::DumpRawTokens: 4117 case frontend::DumpTokens: 4118 case frontend::InitOnly: 4119 case frontend::PrintPreamble: 4120 case frontend::PrintPreprocessedInput: 4121 case frontend::RewriteMacros: 4122 case frontend::RunPreprocessorOnly: 4123 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4124 return true; 4125 } 4126 llvm_unreachable("invalid frontend action"); 4127 } 4128 4129 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4130 SmallVectorImpl<const char *> &Args, 4131 CompilerInvocation::StringAllocator SA, 4132 const LangOptions &LangOpts, 4133 const FrontendOptions &FrontendOpts, 4134 const CodeGenOptions &CodeGenOpts) { 4135 PreprocessorOptions *PreprocessorOpts = &Opts; 4136 4137 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4138 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4139 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4140 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4141 MERGER, EXTRACTOR, TABLE_INDEX) \ 4142 GENERATE_OPTION_WITH_MARSHALLING( \ 4143 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4144 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4145 #include "clang/Driver/Options.inc" 4146 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4147 4148 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4149 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4150 4151 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4152 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4153 4154 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4155 GenerateArg(Args, OPT_preamble_bytes_EQ, 4156 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4157 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4158 SA); 4159 4160 for (const auto &M : Opts.Macros) { 4161 // Don't generate __CET__ macro definitions. They are implied by the 4162 // -fcf-protection option that is generated elsewhere. 4163 if (M.first == "__CET__=1" && !M.second && 4164 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4165 continue; 4166 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4167 !CodeGenOpts.CFProtectionBranch) 4168 continue; 4169 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4170 CodeGenOpts.CFProtectionBranch) 4171 continue; 4172 4173 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4174 } 4175 4176 for (const auto &I : Opts.Includes) { 4177 // Don't generate OpenCL includes. They are implied by other flags that are 4178 // generated elsewhere. 4179 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4180 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4181 I == "opencl-c.h")) 4182 continue; 4183 // Don't generate HLSL includes. They are implied by other flags that are 4184 // generated elsewhere. 4185 if (LangOpts.HLSL && I == "hlsl.h") 4186 continue; 4187 4188 GenerateArg(Args, OPT_include, I, SA); 4189 } 4190 4191 for (const auto &CI : Opts.ChainedIncludes) 4192 GenerateArg(Args, OPT_chain_include, CI, SA); 4193 4194 for (const auto &RF : Opts.RemappedFiles) 4195 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4196 4197 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4198 // generated elsewhere. 4199 } 4200 4201 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4202 DiagnosticsEngine &Diags, 4203 frontend::ActionKind Action, 4204 const FrontendOptions &FrontendOpts) { 4205 unsigned NumErrorsBefore = Diags.getNumErrors(); 4206 4207 PreprocessorOptions *PreprocessorOpts = &Opts; 4208 4209 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4210 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4211 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4212 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4213 MERGER, EXTRACTOR, TABLE_INDEX) \ 4214 PARSE_OPTION_WITH_MARSHALLING( \ 4215 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4216 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4217 #include "clang/Driver/Options.inc" 4218 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4219 4220 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4221 Args.hasArg(OPT_pch_through_hdrstop_use); 4222 4223 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4224 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4225 4226 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4227 StringRef Value(A->getValue()); 4228 size_t Comma = Value.find(','); 4229 unsigned Bytes = 0; 4230 unsigned EndOfLine = 0; 4231 4232 if (Comma == StringRef::npos || 4233 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4234 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4235 Diags.Report(diag::err_drv_preamble_format); 4236 else { 4237 Opts.PrecompiledPreambleBytes.first = Bytes; 4238 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4239 } 4240 } 4241 4242 // Add the __CET__ macro if a CFProtection option is set. 4243 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4244 StringRef Name = A->getValue(); 4245 if (Name == "branch") 4246 Opts.addMacroDef("__CET__=1"); 4247 else if (Name == "return") 4248 Opts.addMacroDef("__CET__=2"); 4249 else if (Name == "full") 4250 Opts.addMacroDef("__CET__=3"); 4251 } 4252 4253 // Add macros from the command line. 4254 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4255 if (A->getOption().matches(OPT_D)) 4256 Opts.addMacroDef(A->getValue()); 4257 else 4258 Opts.addMacroUndef(A->getValue()); 4259 } 4260 4261 // Add the ordered list of -includes. 4262 for (const auto *A : Args.filtered(OPT_include)) 4263 Opts.Includes.emplace_back(A->getValue()); 4264 4265 for (const auto *A : Args.filtered(OPT_chain_include)) 4266 Opts.ChainedIncludes.emplace_back(A->getValue()); 4267 4268 for (const auto *A : Args.filtered(OPT_remap_file)) { 4269 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4270 4271 if (Split.second.empty()) { 4272 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4273 continue; 4274 } 4275 4276 Opts.addRemappedFile(Split.first, Split.second); 4277 } 4278 4279 // Always avoid lexing editor placeholders when we're just running the 4280 // preprocessor as we never want to emit the 4281 // "editor placeholder in source file" error in PP only mode. 4282 if (isStrictlyPreprocessorAction(Action)) 4283 Opts.LexEditorPlaceholders = false; 4284 4285 return Diags.getNumErrors() == NumErrorsBefore; 4286 } 4287 4288 static void GeneratePreprocessorOutputArgs( 4289 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4290 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4291 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4292 4293 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4294 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4295 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4296 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4297 MERGER, EXTRACTOR, TABLE_INDEX) \ 4298 GENERATE_OPTION_WITH_MARSHALLING( \ 4299 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4300 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4301 #include "clang/Driver/Options.inc" 4302 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4303 4304 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4305 if (Generate_dM) 4306 GenerateArg(Args, OPT_dM, SA); 4307 if (!Generate_dM && Opts.ShowMacros) 4308 GenerateArg(Args, OPT_dD, SA); 4309 if (Opts.DirectivesOnly) 4310 GenerateArg(Args, OPT_fdirectives_only, SA); 4311 } 4312 4313 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4314 ArgList &Args, DiagnosticsEngine &Diags, 4315 frontend::ActionKind Action) { 4316 unsigned NumErrorsBefore = Diags.getNumErrors(); 4317 4318 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4319 4320 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4321 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4322 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4323 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4324 MERGER, EXTRACTOR, TABLE_INDEX) \ 4325 PARSE_OPTION_WITH_MARSHALLING( \ 4326 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4327 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4328 #include "clang/Driver/Options.inc" 4329 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4330 4331 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4332 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4333 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4334 4335 return Diags.getNumErrors() == NumErrorsBefore; 4336 } 4337 4338 static void GenerateTargetArgs(const TargetOptions &Opts, 4339 SmallVectorImpl<const char *> &Args, 4340 CompilerInvocation::StringAllocator SA) { 4341 const TargetOptions *TargetOpts = &Opts; 4342 #define TARGET_OPTION_WITH_MARSHALLING( \ 4343 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4344 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4345 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4346 MERGER, EXTRACTOR, TABLE_INDEX) \ 4347 GENERATE_OPTION_WITH_MARSHALLING( \ 4348 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4349 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4350 #include "clang/Driver/Options.inc" 4351 #undef TARGET_OPTION_WITH_MARSHALLING 4352 4353 if (!Opts.SDKVersion.empty()) 4354 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4355 SA); 4356 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4357 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4358 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4359 } 4360 4361 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4362 DiagnosticsEngine &Diags) { 4363 unsigned NumErrorsBefore = Diags.getNumErrors(); 4364 4365 TargetOptions *TargetOpts = &Opts; 4366 4367 #define TARGET_OPTION_WITH_MARSHALLING( \ 4368 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4369 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4370 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4371 MERGER, EXTRACTOR, TABLE_INDEX) \ 4372 PARSE_OPTION_WITH_MARSHALLING( \ 4373 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4374 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4375 #include "clang/Driver/Options.inc" 4376 #undef TARGET_OPTION_WITH_MARSHALLING 4377 4378 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4379 llvm::VersionTuple Version; 4380 if (Version.tryParse(A->getValue())) 4381 Diags.Report(diag::err_drv_invalid_value) 4382 << A->getAsString(Args) << A->getValue(); 4383 else 4384 Opts.SDKVersion = Version; 4385 } 4386 if (Arg *A = 4387 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4388 llvm::VersionTuple Version; 4389 if (Version.tryParse(A->getValue())) 4390 Diags.Report(diag::err_drv_invalid_value) 4391 << A->getAsString(Args) << A->getValue(); 4392 else 4393 Opts.DarwinTargetVariantSDKVersion = Version; 4394 } 4395 4396 return Diags.getNumErrors() == NumErrorsBefore; 4397 } 4398 4399 bool CompilerInvocation::CreateFromArgsImpl( 4400 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4401 DiagnosticsEngine &Diags, const char *Argv0) { 4402 unsigned NumErrorsBefore = Diags.getNumErrors(); 4403 4404 // Parse the arguments. 4405 const OptTable &Opts = getDriverOptTable(); 4406 const unsigned IncludedFlagsBitmask = options::CC1Option; 4407 unsigned MissingArgIndex, MissingArgCount; 4408 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4409 MissingArgCount, IncludedFlagsBitmask); 4410 LangOptions &LangOpts = *Res.getLangOpts(); 4411 4412 // Check for missing argument error. 4413 if (MissingArgCount) 4414 Diags.Report(diag::err_drv_missing_argument) 4415 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4416 4417 // Issue errors on unknown arguments. 4418 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4419 auto ArgString = A->getAsString(Args); 4420 std::string Nearest; 4421 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4422 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4423 else 4424 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4425 << ArgString << Nearest; 4426 } 4427 4428 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4429 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4430 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4431 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4432 /*DefaultDiagColor=*/false); 4433 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4434 // FIXME: We shouldn't have to pass the DashX option around here 4435 InputKind DashX = Res.getFrontendOpts().DashX; 4436 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4437 llvm::Triple T(Res.getTargetOpts().Triple); 4438 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4439 Res.getFileSystemOpts().WorkingDir); 4440 4441 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4442 Diags); 4443 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4444 LangOpts.ObjCExceptions = 1; 4445 4446 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4447 if (Warning == "misexpect" && 4448 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4449 Res.getCodeGenOpts().MisExpect = true; 4450 } 4451 } 4452 4453 if (LangOpts.CUDA) { 4454 // During CUDA device-side compilation, the aux triple is the 4455 // triple used for host compilation. 4456 if (LangOpts.CUDAIsDevice) 4457 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4458 } 4459 4460 // Set the triple of the host for OpenMP device compile. 4461 if (LangOpts.OpenMPIsDevice) 4462 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4463 4464 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4465 Res.getFrontendOpts().OutputFile, LangOpts); 4466 4467 // FIXME: Override value name discarding when asan or msan is used because the 4468 // backend passes depend on the name of the alloca in order to print out 4469 // names. 4470 Res.getCodeGenOpts().DiscardValueNames &= 4471 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4472 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4473 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4474 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4475 4476 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4477 Res.getFrontendOpts().ProgramAction, 4478 Res.getFrontendOpts()); 4479 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4480 Res.getFrontendOpts().ProgramAction); 4481 4482 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4483 Res.getFrontendOpts().ProgramAction, 4484 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4485 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4486 Res.getDependencyOutputOpts().Targets.empty()) 4487 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4488 4489 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4490 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4491 !Res.getLangOpts()->Sanitize.empty()) { 4492 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4493 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4494 } 4495 4496 // Store the command-line for using in the CodeView backend. 4497 Res.getCodeGenOpts().Argv0 = Argv0; 4498 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4499 4500 FixupInvocation(Res, Diags, Args, DashX); 4501 4502 return Diags.getNumErrors() == NumErrorsBefore; 4503 } 4504 4505 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4506 ArrayRef<const char *> CommandLineArgs, 4507 DiagnosticsEngine &Diags, 4508 const char *Argv0) { 4509 CompilerInvocation DummyInvocation; 4510 4511 return RoundTrip( 4512 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4513 DiagnosticsEngine &Diags, const char *Argv0) { 4514 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4515 }, 4516 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4517 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4518 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4519 } 4520 4521 std::string CompilerInvocation::getModuleHash() const { 4522 // FIXME: Consider using SHA1 instead of MD5. 4523 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4524 4525 // Note: For QoI reasons, the things we use as a hash here should all be 4526 // dumped via the -module-info flag. 4527 4528 // Start the signature with the compiler version. 4529 HBuilder.add(getClangFullRepositoryVersion()); 4530 4531 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4532 // and getClangFullRepositoryVersion() doesn't include git revision. 4533 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4534 4535 // Extend the signature with the language options 4536 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4537 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4538 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4539 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4540 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4541 #include "clang/Basic/LangOptions.def" 4542 4543 HBuilder.addRange(LangOpts->ModuleFeatures); 4544 4545 HBuilder.add(LangOpts->ObjCRuntime); 4546 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4547 4548 // Extend the signature with the target options. 4549 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4550 TargetOpts->ABI); 4551 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4552 4553 // Extend the signature with preprocessor options. 4554 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4555 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4556 4557 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4558 for (const auto &Macro : getPreprocessorOpts().Macros) { 4559 // If we're supposed to ignore this macro for the purposes of modules, 4560 // don't put it into the hash. 4561 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4562 // Check whether we're ignoring this macro. 4563 StringRef MacroDef = Macro.first; 4564 if (hsOpts.ModulesIgnoreMacros.count( 4565 llvm::CachedHashString(MacroDef.split('=').first))) 4566 continue; 4567 } 4568 4569 HBuilder.add(Macro); 4570 } 4571 4572 // Extend the signature with the sysroot and other header search options. 4573 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4574 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4575 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4576 hsOpts.ModulesValidateDiagnosticOptions); 4577 HBuilder.add(hsOpts.ResourceDir); 4578 4579 if (hsOpts.ModulesStrictContextHash) { 4580 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4581 HBuilder.addRange(hsOpts.UserEntries); 4582 4583 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4584 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4585 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4586 HBuilder.add(diagOpts.get##Name()); 4587 #include "clang/Basic/DiagnosticOptions.def" 4588 #undef DIAGOPT 4589 #undef ENUM_DIAGOPT 4590 } 4591 4592 // Extend the signature with the user build path. 4593 HBuilder.add(hsOpts.ModuleUserBuildPath); 4594 4595 // Extend the signature with the module file extensions. 4596 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4597 ext->hashExtension(HBuilder); 4598 4599 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4600 // affects the debug info in the PCM. 4601 if (getCodeGenOpts().DebugTypeExtRefs) 4602 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4603 4604 // Extend the signature with the enabled sanitizers, if at least one is 4605 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4606 SanitizerSet SanHash = LangOpts->Sanitize; 4607 SanHash.clear(getPPTransparentSanitizers()); 4608 if (!SanHash.empty()) 4609 HBuilder.add(SanHash.Mask); 4610 4611 llvm::MD5::MD5Result Result; 4612 HBuilder.getHasher().final(Result); 4613 uint64_t Hash = Result.high() ^ Result.low(); 4614 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4615 } 4616 4617 void CompilerInvocation::generateCC1CommandLine( 4618 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4619 llvm::Triple T(TargetOpts->Triple); 4620 4621 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4622 GenerateMigratorArgs(MigratorOpts, Args, SA); 4623 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4624 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4625 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4626 GenerateTargetArgs(*TargetOpts, Args, SA); 4627 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4628 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4629 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4630 &*LangOpts); 4631 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4632 CodeGenOpts); 4633 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4634 FrontendOpts.ProgramAction); 4635 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4636 } 4637 4638 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4639 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4640 DiagnosticsEngine &Diags) { 4641 return createVFSFromCompilerInvocation(CI, Diags, 4642 llvm::vfs::getRealFileSystem()); 4643 } 4644 4645 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4646 clang::createVFSFromCompilerInvocation( 4647 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4648 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4649 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4650 return BaseFS; 4651 4652 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4653 // earlier vfs files are on the bottom 4654 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4655 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4656 Result->getBufferForFile(File); 4657 if (!Buffer) { 4658 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4659 continue; 4660 } 4661 4662 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4663 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4664 /*DiagContext*/ nullptr, Result); 4665 if (!FS) { 4666 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4667 continue; 4668 } 4669 4670 Result = FS; 4671 } 4672 return Result; 4673 } 4674