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 (Arg *A = Args.getLastArg(OPT_analyzer_store)) 907 Diags.Report(diag::warn_analyzer_deprecated_option) << "-analyzer-store" 908 << "clang-16"; 909 if (Arg *A = Args.getLastArg(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 tostore checker options. 1097 1098 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1099 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1100 1101 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1102 SHALLOW_VAL, DEEP_VAL) \ 1103 switch (AnOpts.getUserMode()) { \ 1104 case UMK_Shallow: \ 1105 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1106 break; \ 1107 case UMK_Deep: \ 1108 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1109 break; \ 1110 } \ 1111 1112 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1113 #undef ANALYZER_OPTION 1114 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1115 1116 // At this point, AnalyzerOptions is configured. Let's validate some options. 1117 1118 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1119 // The current approach only validates the registered checkers which does not 1120 // contain the runtime enabled checkers and optimally we would validate both. 1121 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1122 std::vector<StringRef> Checkers = 1123 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1124 std::vector<StringRef> Packages = 1125 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1126 1127 SmallVector<StringRef, 16> CheckersAndPackages; 1128 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1129 1130 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1131 if (Diags) { 1132 bool IsChecker = CheckerOrPackage.contains('.'); 1133 bool IsValidName = IsChecker 1134 ? llvm::is_contained(Checkers, CheckerOrPackage) 1135 : llvm::is_contained(Packages, CheckerOrPackage); 1136 1137 if (!IsValidName) 1138 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1139 << CheckerOrPackage; 1140 } 1141 1142 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1143 } 1144 } 1145 1146 if (!Diags) 1147 return; 1148 1149 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1150 Diags->Report(diag::err_analyzer_config_invalid_input) 1151 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1152 1153 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1154 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1155 << "a filename"; 1156 1157 if (!AnOpts.ModelPath.empty() && 1158 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1159 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1160 << "a filename"; 1161 } 1162 1163 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1164 static void 1165 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1166 CompilerInvocation::StringAllocator SA, 1167 OptSpecifier OptEQ, StringRef Name, 1168 const CodeGenOptions::OptRemark &Remark) { 1169 if (Remark.hasValidPattern()) { 1170 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1171 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1172 GenerateArg(Args, OPT_R_Joined, Name, SA); 1173 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1174 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1175 } 1176 } 1177 1178 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1179 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1180 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1181 static CodeGenOptions::OptRemark 1182 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1183 OptSpecifier OptEQ, StringRef Name) { 1184 CodeGenOptions::OptRemark Result; 1185 1186 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1187 StringRef Pattern) { 1188 Result.Pattern = Pattern.str(); 1189 1190 std::string RegexError; 1191 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1192 if (!Result.Regex->isValid(RegexError)) { 1193 Diags.Report(diag::err_drv_optimization_remark_pattern) 1194 << RegexError << A->getAsString(Args); 1195 return false; 1196 } 1197 1198 return true; 1199 }; 1200 1201 for (Arg *A : Args) { 1202 if (A->getOption().matches(OPT_R_Joined)) { 1203 StringRef Value = A->getValue(); 1204 1205 if (Value == Name) 1206 Result.Kind = CodeGenOptions::RK_Enabled; 1207 else if (Value == "everything") 1208 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1209 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1210 Result.Kind = CodeGenOptions::RK_Disabled; 1211 else if (Value == "no-everything") 1212 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1213 else 1214 continue; 1215 1216 if (Result.Kind == CodeGenOptions::RK_Disabled || 1217 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1218 Result.Pattern = ""; 1219 Result.Regex = nullptr; 1220 } else { 1221 InitializeResultPattern(A, ".*"); 1222 } 1223 } else if (A->getOption().matches(OptEQ)) { 1224 Result.Kind = CodeGenOptions::RK_WithPattern; 1225 if (!InitializeResultPattern(A, A->getValue())) 1226 return CodeGenOptions::OptRemark(); 1227 } 1228 } 1229 1230 return Result; 1231 } 1232 1233 static bool parseDiagnosticLevelMask(StringRef FlagName, 1234 const std::vector<std::string> &Levels, 1235 DiagnosticsEngine &Diags, 1236 DiagnosticLevelMask &M) { 1237 bool Success = true; 1238 for (const auto &Level : Levels) { 1239 DiagnosticLevelMask const PM = 1240 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1241 .Case("note", DiagnosticLevelMask::Note) 1242 .Case("remark", DiagnosticLevelMask::Remark) 1243 .Case("warning", DiagnosticLevelMask::Warning) 1244 .Case("error", DiagnosticLevelMask::Error) 1245 .Default(DiagnosticLevelMask::None); 1246 if (PM == DiagnosticLevelMask::None) { 1247 Success = false; 1248 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1249 } 1250 M = M | PM; 1251 } 1252 return Success; 1253 } 1254 1255 static void parseSanitizerKinds(StringRef FlagName, 1256 const std::vector<std::string> &Sanitizers, 1257 DiagnosticsEngine &Diags, SanitizerSet &S) { 1258 for (const auto &Sanitizer : Sanitizers) { 1259 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1260 if (K == SanitizerMask()) 1261 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1262 else 1263 S.set(K, true); 1264 } 1265 } 1266 1267 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1268 SmallVector<StringRef, 4> Values; 1269 serializeSanitizerSet(S, Values); 1270 return Values; 1271 } 1272 1273 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1274 ArgList &Args, DiagnosticsEngine &D, 1275 XRayInstrSet &S) { 1276 llvm::SmallVector<StringRef, 2> BundleParts; 1277 llvm::SplitString(Bundle, BundleParts, ","); 1278 for (const auto &B : BundleParts) { 1279 auto Mask = parseXRayInstrValue(B); 1280 if (Mask == XRayInstrKind::None) 1281 if (B != "none") 1282 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1283 else 1284 S.Mask = Mask; 1285 else if (Mask == XRayInstrKind::All) 1286 S.Mask = Mask; 1287 else 1288 S.set(Mask, true); 1289 } 1290 } 1291 1292 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1293 llvm::SmallVector<StringRef, 2> BundleParts; 1294 serializeXRayInstrValue(S, BundleParts); 1295 std::string Buffer; 1296 llvm::raw_string_ostream OS(Buffer); 1297 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1298 return Buffer; 1299 } 1300 1301 // Set the profile kind using fprofile-instrument-use-path. 1302 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1303 const Twine &ProfileName) { 1304 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1305 // In error, return silently and let Clang PGOUse report the error message. 1306 if (auto E = ReaderOrErr.takeError()) { 1307 llvm::consumeError(std::move(E)); 1308 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1309 return; 1310 } 1311 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1312 std::move(ReaderOrErr.get()); 1313 if (PGOReader->isIRLevelProfile()) { 1314 if (PGOReader->hasCSIRLevelProfile()) 1315 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1316 else 1317 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1318 } else 1319 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1320 } 1321 1322 void CompilerInvocation::GenerateCodeGenArgs( 1323 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1324 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1325 const LangOptions *LangOpts) { 1326 const CodeGenOptions &CodeGenOpts = Opts; 1327 1328 if (Opts.OptimizationLevel == 0) 1329 GenerateArg(Args, OPT_O0, SA); 1330 else 1331 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1332 1333 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1334 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1335 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1336 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1337 MERGER, EXTRACTOR, TABLE_INDEX) \ 1338 GENERATE_OPTION_WITH_MARSHALLING( \ 1339 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1340 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1341 #include "clang/Driver/Options.inc" 1342 #undef CODEGEN_OPTION_WITH_MARSHALLING 1343 1344 if (Opts.OptimizationLevel > 0) { 1345 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1346 GenerateArg(Args, OPT_finline_functions, SA); 1347 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1348 GenerateArg(Args, OPT_finline_hint_functions, SA); 1349 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1350 GenerateArg(Args, OPT_fno_inline, SA); 1351 } 1352 1353 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1354 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1355 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1356 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1357 1358 Optional<StringRef> DebugInfoVal; 1359 switch (Opts.DebugInfo) { 1360 case codegenoptions::DebugLineTablesOnly: 1361 DebugInfoVal = "line-tables-only"; 1362 break; 1363 case codegenoptions::DebugDirectivesOnly: 1364 DebugInfoVal = "line-directives-only"; 1365 break; 1366 case codegenoptions::DebugInfoConstructor: 1367 DebugInfoVal = "constructor"; 1368 break; 1369 case codegenoptions::LimitedDebugInfo: 1370 DebugInfoVal = "limited"; 1371 break; 1372 case codegenoptions::FullDebugInfo: 1373 DebugInfoVal = "standalone"; 1374 break; 1375 case codegenoptions::UnusedTypeInfo: 1376 DebugInfoVal = "unused-types"; 1377 break; 1378 case codegenoptions::NoDebugInfo: // default value 1379 DebugInfoVal = None; 1380 break; 1381 case codegenoptions::LocTrackingOnly: // implied value 1382 DebugInfoVal = None; 1383 break; 1384 } 1385 if (DebugInfoVal) 1386 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1387 1388 for (const auto &Prefix : Opts.DebugPrefixMap) 1389 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1390 Prefix.first + "=" + Prefix.second, SA); 1391 1392 for (const auto &Prefix : Opts.CoveragePrefixMap) 1393 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1394 Prefix.first + "=" + Prefix.second, SA); 1395 1396 if (Opts.NewStructPathTBAA) 1397 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1398 1399 if (Opts.OptimizeSize == 1) 1400 GenerateArg(Args, OPT_O, "s", SA); 1401 else if (Opts.OptimizeSize == 2) 1402 GenerateArg(Args, OPT_O, "z", SA); 1403 1404 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1405 // -ffreestanding. We'll consider that when generating them. 1406 1407 // NoBuiltinFuncs are generated by LangOptions. 1408 1409 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1410 GenerateArg(Args, OPT_funroll_loops, SA); 1411 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1412 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1413 1414 if (!Opts.BinutilsVersion.empty()) 1415 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1416 1417 if (Opts.DebugNameTable == 1418 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1419 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1420 else if (Opts.DebugNameTable == 1421 static_cast<unsigned>( 1422 llvm::DICompileUnit::DebugNameTableKind::Default)) 1423 GenerateArg(Args, OPT_gpubnames, SA); 1424 1425 auto TNK = Opts.getDebugSimpleTemplateNames(); 1426 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1427 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1428 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1429 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1430 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1431 } 1432 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1433 // it or PGOUseInstrumentor. 1434 1435 if (Opts.TimePasses) { 1436 if (Opts.TimePassesPerRun) 1437 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1438 else 1439 GenerateArg(Args, OPT_ftime_report, SA); 1440 } 1441 1442 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1443 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1444 1445 if (Opts.PrepareForThinLTO) 1446 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1447 1448 if (!Opts.ThinLTOIndexFile.empty()) 1449 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1450 1451 if (Opts.SaveTempsFilePrefix == OutputFile) 1452 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1453 1454 StringRef MemProfileBasename("memprof.profraw"); 1455 if (!Opts.MemoryProfileOutput.empty()) { 1456 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1457 GenerateArg(Args, OPT_fmemory_profile, SA); 1458 } else { 1459 size_t ArgLength = 1460 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1461 GenerateArg(Args, OPT_fmemory_profile_EQ, 1462 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1463 } 1464 } 1465 1466 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1467 GenerateArg(Args, OPT_coverage_version_EQ, 1468 StringRef(Opts.CoverageVersion, 4), SA); 1469 1470 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1471 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1472 // won't be generated.) 1473 1474 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1475 std::string InstrBundle = 1476 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1477 if (!InstrBundle.empty()) 1478 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1479 } 1480 1481 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1482 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1483 else if (Opts.CFProtectionReturn) 1484 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1485 else if (Opts.CFProtectionBranch) 1486 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1487 1488 if (Opts.IBTSeal) 1489 GenerateArg(Args, OPT_mibt_seal, SA); 1490 1491 for (const auto &F : Opts.LinkBitcodeFiles) { 1492 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1493 F.PropagateAttrs && F.Internalize; 1494 GenerateArg(Args, 1495 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1496 F.Filename, SA); 1497 } 1498 1499 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1500 // That would make it easy to generate the option only **once** if it was 1501 // explicitly set to non-default value. 1502 if (Opts.ExplicitEmulatedTLS) { 1503 GenerateArg( 1504 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1505 } 1506 1507 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1508 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1509 1510 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1511 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1512 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1513 SA); 1514 1515 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1516 OptSpecifier Opt = 1517 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1518 GenerateArg(Args, Opt, SA); 1519 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1520 OptSpecifier Opt = 1521 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1522 GenerateArg(Args, Opt, SA); 1523 } 1524 1525 if (Opts.EnableAIXExtendedAltivecABI) 1526 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1527 1528 if (!Opts.OptRecordPasses.empty()) 1529 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1530 1531 if (!Opts.OptRecordFormat.empty()) 1532 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1533 1534 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1535 Opts.OptimizationRemark); 1536 1537 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1538 Opts.OptimizationRemarkMissed); 1539 1540 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1541 Opts.OptimizationRemarkAnalysis); 1542 1543 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1544 Opts.DiagnosticsHotnessThreshold 1545 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1546 : "auto", 1547 SA); 1548 1549 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1550 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1551 1552 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1553 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1554 1555 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1556 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1557 1558 if (!Opts.EmitVersionIdentMetadata) 1559 GenerateArg(Args, OPT_Qn, SA); 1560 1561 switch (Opts.FiniteLoops) { 1562 case CodeGenOptions::FiniteLoopsKind::Language: 1563 break; 1564 case CodeGenOptions::FiniteLoopsKind::Always: 1565 GenerateArg(Args, OPT_ffinite_loops, SA); 1566 break; 1567 case CodeGenOptions::FiniteLoopsKind::Never: 1568 GenerateArg(Args, OPT_fno_finite_loops, SA); 1569 break; 1570 } 1571 } 1572 1573 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1574 InputKind IK, 1575 DiagnosticsEngine &Diags, 1576 const llvm::Triple &T, 1577 const std::string &OutputFile, 1578 const LangOptions &LangOptsRef) { 1579 unsigned NumErrorsBefore = Diags.getNumErrors(); 1580 1581 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1582 // TODO: This could be done in Driver 1583 unsigned MaxOptLevel = 3; 1584 if (OptimizationLevel > MaxOptLevel) { 1585 // If the optimization level is not supported, fall back on the default 1586 // optimization 1587 Diags.Report(diag::warn_drv_optimization_value) 1588 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1589 OptimizationLevel = MaxOptLevel; 1590 } 1591 Opts.OptimizationLevel = OptimizationLevel; 1592 1593 // The key paths of codegen options defined in Options.td start with 1594 // "CodeGenOpts.". Let's provide the expected variable name and type. 1595 CodeGenOptions &CodeGenOpts = Opts; 1596 // Some codegen options depend on language options. Let's provide the expected 1597 // variable name and type. 1598 const LangOptions *LangOpts = &LangOptsRef; 1599 1600 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1601 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1602 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1603 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1604 MERGER, EXTRACTOR, TABLE_INDEX) \ 1605 PARSE_OPTION_WITH_MARSHALLING( \ 1606 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1607 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1608 #include "clang/Driver/Options.inc" 1609 #undef CODEGEN_OPTION_WITH_MARSHALLING 1610 1611 // At O0 we want to fully disable inlining outside of cases marked with 1612 // 'alwaysinline' that are required for correctness. 1613 if (Opts.OptimizationLevel == 0) { 1614 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1615 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1616 options::OPT_finline_hint_functions, 1617 options::OPT_fno_inline_functions, 1618 options::OPT_fno_inline)) { 1619 // Explicit inlining flags can disable some or all inlining even at 1620 // optimization levels above zero. 1621 if (A->getOption().matches(options::OPT_finline_functions)) 1622 Opts.setInlining(CodeGenOptions::NormalInlining); 1623 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1624 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1625 else 1626 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1627 } else { 1628 Opts.setInlining(CodeGenOptions::NormalInlining); 1629 } 1630 1631 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1632 // -fdirect-access-external-data. 1633 Opts.DirectAccessExternalData = 1634 Args.hasArg(OPT_fdirect_access_external_data) || 1635 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1636 LangOpts->PICLevel == 0); 1637 1638 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1639 unsigned Val = 1640 llvm::StringSwitch<unsigned>(A->getValue()) 1641 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1642 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1643 .Case("constructor", codegenoptions::DebugInfoConstructor) 1644 .Case("limited", codegenoptions::LimitedDebugInfo) 1645 .Case("standalone", codegenoptions::FullDebugInfo) 1646 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1647 .Default(~0U); 1648 if (Val == ~0U) 1649 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1650 << A->getValue(); 1651 else 1652 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1653 } 1654 1655 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1656 // constructor homing, and vice versa for -fno-use-ctor-homing. 1657 if (const Arg *A = 1658 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1659 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1660 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1661 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1662 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1663 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1664 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1665 } 1666 1667 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1668 auto Split = StringRef(Arg).split('='); 1669 Opts.DebugPrefixMap.insert( 1670 {std::string(Split.first), std::string(Split.second)}); 1671 } 1672 1673 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1674 auto Split = StringRef(Arg).split('='); 1675 Opts.CoveragePrefixMap.insert( 1676 {std::string(Split.first), std::string(Split.second)}); 1677 } 1678 1679 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1680 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1681 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1682 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1683 1684 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1685 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1686 Opts.EmitCallSiteInfo = true; 1687 1688 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1689 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1690 << Opts.DIBugsReportFilePath; 1691 Opts.DIBugsReportFilePath = ""; 1692 } 1693 1694 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1695 Args.hasArg(OPT_new_struct_path_tbaa); 1696 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1697 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1698 if (Opts.SimplifyLibCalls) 1699 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1700 Opts.UnrollLoops = 1701 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1702 (Opts.OptimizationLevel > 1)); 1703 Opts.BinutilsVersion = 1704 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1705 1706 Opts.DebugNameTable = static_cast<unsigned>( 1707 Args.hasArg(OPT_ggnu_pubnames) 1708 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1709 : Args.hasArg(OPT_gpubnames) 1710 ? llvm::DICompileUnit::DebugNameTableKind::Default 1711 : llvm::DICompileUnit::DebugNameTableKind::None); 1712 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1713 StringRef Value = A->getValue(); 1714 if (Value != "simple" && Value != "mangled") 1715 Diags.Report(diag::err_drv_unsupported_option_argument) 1716 << A->getOption().getName() << A->getValue(); 1717 Opts.setDebugSimpleTemplateNames( 1718 StringRef(A->getValue()) == "simple" 1719 ? codegenoptions::DebugTemplateNamesKind::Simple 1720 : codegenoptions::DebugTemplateNamesKind::Mangled); 1721 } 1722 1723 if (!Opts.ProfileInstrumentUsePath.empty()) 1724 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1725 1726 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1727 Opts.TimePasses = true; 1728 1729 // -ftime-report= is only for new pass manager. 1730 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1731 StringRef Val = A->getValue(); 1732 if (Val == "per-pass") 1733 Opts.TimePassesPerRun = false; 1734 else if (Val == "per-pass-run") 1735 Opts.TimePassesPerRun = true; 1736 else 1737 Diags.Report(diag::err_drv_invalid_value) 1738 << A->getAsString(Args) << A->getValue(); 1739 } 1740 } 1741 1742 Opts.PrepareForLTO = false; 1743 Opts.PrepareForThinLTO = false; 1744 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1745 Opts.PrepareForLTO = true; 1746 StringRef S = A->getValue(); 1747 if (S == "thin") 1748 Opts.PrepareForThinLTO = true; 1749 else if (S != "full") 1750 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1751 } 1752 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1753 if (IK.getLanguage() != Language::LLVM_IR) 1754 Diags.Report(diag::err_drv_argument_only_allowed_with) 1755 << A->getAsString(Args) << "-x ir"; 1756 Opts.ThinLTOIndexFile = 1757 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1758 } 1759 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1760 Opts.SaveTempsFilePrefix = 1761 llvm::StringSwitch<std::string>(A->getValue()) 1762 .Case("obj", OutputFile) 1763 .Default(llvm::sys::path::filename(OutputFile).str()); 1764 1765 // The memory profile runtime appends the pid to make this name more unique. 1766 const char *MemProfileBasename = "memprof.profraw"; 1767 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1768 SmallString<128> Path( 1769 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1770 llvm::sys::path::append(Path, MemProfileBasename); 1771 Opts.MemoryProfileOutput = std::string(Path); 1772 } else if (Args.hasArg(OPT_fmemory_profile)) 1773 Opts.MemoryProfileOutput = MemProfileBasename; 1774 1775 memcpy(Opts.CoverageVersion, "408*", 4); 1776 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1777 if (Args.hasArg(OPT_coverage_version_EQ)) { 1778 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1779 if (CoverageVersion.size() != 4) { 1780 Diags.Report(diag::err_drv_invalid_value) 1781 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1782 << CoverageVersion; 1783 } else { 1784 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1785 } 1786 } 1787 } 1788 // FIXME: For backend options that are not yet recorded as function 1789 // attributes in the IR, keep track of them so we can embed them in a 1790 // separate data section and use them when building the bitcode. 1791 for (const auto &A : Args) { 1792 // Do not encode output and input. 1793 if (A->getOption().getID() == options::OPT_o || 1794 A->getOption().getID() == options::OPT_INPUT || 1795 A->getOption().getID() == options::OPT_x || 1796 A->getOption().getID() == options::OPT_fembed_bitcode || 1797 A->getOption().matches(options::OPT_W_Group)) 1798 continue; 1799 ArgStringList ASL; 1800 A->render(Args, ASL); 1801 for (const auto &arg : ASL) { 1802 StringRef ArgStr(arg); 1803 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1804 // using \00 to separate each commandline options. 1805 Opts.CmdArgs.push_back('\0'); 1806 } 1807 } 1808 1809 auto XRayInstrBundles = 1810 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1811 if (XRayInstrBundles.empty()) 1812 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1813 else 1814 for (const auto &A : XRayInstrBundles) 1815 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1816 Diags, Opts.XRayInstrumentationBundle); 1817 1818 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1819 StringRef Name = A->getValue(); 1820 if (Name == "full") { 1821 Opts.CFProtectionReturn = 1; 1822 Opts.CFProtectionBranch = 1; 1823 } else if (Name == "return") 1824 Opts.CFProtectionReturn = 1; 1825 else if (Name == "branch") 1826 Opts.CFProtectionBranch = 1; 1827 else if (Name != "none") 1828 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1829 } 1830 1831 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1832 Opts.IBTSeal = 1; 1833 1834 for (auto *A : 1835 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1836 CodeGenOptions::BitcodeFileToLink F; 1837 F.Filename = A->getValue(); 1838 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1839 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1840 // When linking CUDA bitcode, propagate function attributes so that 1841 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1842 F.PropagateAttrs = true; 1843 F.Internalize = true; 1844 } 1845 Opts.LinkBitcodeFiles.push_back(F); 1846 } 1847 1848 if (Args.getLastArg(OPT_femulated_tls) || 1849 Args.getLastArg(OPT_fno_emulated_tls)) { 1850 Opts.ExplicitEmulatedTLS = true; 1851 } 1852 1853 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1854 if (T.isOSAIX()) { 1855 StringRef Name = A->getValue(); 1856 if (Name != "global-dynamic") 1857 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1858 } 1859 } 1860 1861 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1862 StringRef Val = A->getValue(); 1863 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1864 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1865 if (!Opts.FPDenormalMode.isValid()) 1866 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1867 } 1868 1869 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1870 StringRef Val = A->getValue(); 1871 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1872 if (!Opts.FP32DenormalMode.isValid()) 1873 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1874 } 1875 1876 // X86_32 has -fppc-struct-return and -freg-struct-return. 1877 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1878 if (Arg *A = 1879 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1880 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1881 // TODO: We might want to consider enabling these options on AIX in the 1882 // future. 1883 if (T.isOSAIX()) 1884 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1885 << A->getSpelling() << T.str(); 1886 1887 const Option &O = A->getOption(); 1888 if (O.matches(OPT_fpcc_struct_return) || 1889 O.matches(OPT_maix_struct_return)) { 1890 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1891 } else { 1892 assert(O.matches(OPT_freg_struct_return) || 1893 O.matches(OPT_msvr4_struct_return)); 1894 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1895 } 1896 } 1897 1898 if (Arg *A = 1899 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1900 if (!T.isOSAIX()) 1901 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1902 << A->getSpelling() << T.str(); 1903 1904 const Option &O = A->getOption(); 1905 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1906 } 1907 1908 bool NeedLocTracking = false; 1909 1910 if (!Opts.OptRecordFile.empty()) 1911 NeedLocTracking = true; 1912 1913 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1914 Opts.OptRecordPasses = A->getValue(); 1915 NeedLocTracking = true; 1916 } 1917 1918 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1919 Opts.OptRecordFormat = A->getValue(); 1920 NeedLocTracking = true; 1921 } 1922 1923 Opts.OptimizationRemark = 1924 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1925 1926 Opts.OptimizationRemarkMissed = 1927 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1928 1929 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1930 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1931 1932 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1933 Opts.OptimizationRemarkMissed.hasValidPattern() || 1934 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1935 1936 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1937 bool UsingProfile = UsingSampleProfile || 1938 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1939 1940 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1941 // An IR file will contain PGO as metadata 1942 IK.getLanguage() != Language::LLVM_IR) 1943 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1944 << "-fdiagnostics-show-hotness"; 1945 1946 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1947 if (auto *arg = 1948 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1949 auto ResultOrErr = 1950 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1951 1952 if (!ResultOrErr) { 1953 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1954 << "-fdiagnostics-hotness-threshold="; 1955 } else { 1956 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1957 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1958 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1959 !UsingProfile) 1960 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1961 << "-fdiagnostics-hotness-threshold="; 1962 } 1963 } 1964 1965 if (auto *arg = 1966 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1967 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1968 1969 if (!ResultOrErr) { 1970 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1971 << "-fdiagnostics-misexpect-tolerance="; 1972 } else { 1973 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1974 if ((!Opts.DiagnosticsMisExpectTolerance.hasValue() || 1975 Opts.DiagnosticsMisExpectTolerance.getValue() > 0) && 1976 !UsingProfile) 1977 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 1978 << "-fdiagnostics-misexpect-tolerance="; 1979 } 1980 } 1981 1982 // If the user requested to use a sample profile for PGO, then the 1983 // backend will need to track source location information so the profile 1984 // can be incorporated into the IR. 1985 if (UsingSampleProfile) 1986 NeedLocTracking = true; 1987 1988 if (!Opts.StackUsageOutput.empty()) 1989 NeedLocTracking = true; 1990 1991 // If the user requested a flag that requires source locations available in 1992 // the backend, make sure that the backend tracks source location information. 1993 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1994 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1995 1996 // Parse -fsanitize-recover= arguments. 1997 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1998 parseSanitizerKinds("-fsanitize-recover=", 1999 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2000 Opts.SanitizeRecover); 2001 parseSanitizerKinds("-fsanitize-trap=", 2002 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2003 Opts.SanitizeTrap); 2004 2005 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2006 2007 if (Args.hasArg(options::OPT_ffinite_loops)) 2008 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2009 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2010 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2011 2012 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2013 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2014 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2015 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2016 2017 return Diags.getNumErrors() == NumErrorsBefore; 2018 } 2019 2020 static void 2021 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2022 SmallVectorImpl<const char *> &Args, 2023 CompilerInvocation::StringAllocator SA) { 2024 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2025 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2026 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2027 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2028 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2029 MERGER, EXTRACTOR, TABLE_INDEX) \ 2030 GENERATE_OPTION_WITH_MARSHALLING( \ 2031 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2032 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2033 #include "clang/Driver/Options.inc" 2034 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2035 2036 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2037 GenerateArg(Args, OPT_show_includes, SA); 2038 2039 for (const auto &Dep : Opts.ExtraDeps) { 2040 switch (Dep.second) { 2041 case EDK_SanitizeIgnorelist: 2042 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2043 continue; 2044 case EDK_ModuleFile: 2045 // Module file arguments are generated from FrontendOptions and 2046 // HeaderSearchOptions. 2047 continue; 2048 case EDK_ProfileList: 2049 // Profile list arguments are generated from LanguageOptions via the 2050 // marshalling infrastructure. 2051 continue; 2052 case EDK_DepFileEntry: 2053 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2054 break; 2055 } 2056 } 2057 } 2058 2059 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2060 ArgList &Args, DiagnosticsEngine &Diags, 2061 frontend::ActionKind Action, 2062 bool ShowLineMarkers) { 2063 unsigned NumErrorsBefore = Diags.getNumErrors(); 2064 2065 DependencyOutputOptions &DependencyOutputOpts = Opts; 2066 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2067 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2068 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2069 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2070 MERGER, EXTRACTOR, TABLE_INDEX) \ 2071 PARSE_OPTION_WITH_MARSHALLING( \ 2072 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2073 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2074 #include "clang/Driver/Options.inc" 2075 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2076 2077 if (Args.hasArg(OPT_show_includes)) { 2078 // Writing both /showIncludes and preprocessor output to stdout 2079 // would produce interleaved output, so use stderr for /showIncludes. 2080 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2081 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2082 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2083 else 2084 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2085 } else { 2086 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2087 } 2088 2089 // Add sanitizer ignorelists as extra dependencies. 2090 // They won't be discovered by the regular preprocessor, so 2091 // we let make / ninja to know about this implicit dependency. 2092 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2093 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2094 StringRef Val = A->getValue(); 2095 if (!Val.contains('=')) 2096 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2097 } 2098 if (Opts.IncludeSystemHeaders) { 2099 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2100 StringRef Val = A->getValue(); 2101 if (!Val.contains('=')) 2102 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2103 } 2104 } 2105 } 2106 2107 // -fprofile-list= dependencies. 2108 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2109 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2110 2111 // Propagate the extra dependencies. 2112 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2113 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2114 2115 // Only the -fmodule-file=<file> form. 2116 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2117 StringRef Val = A->getValue(); 2118 if (!Val.contains('=')) 2119 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2120 } 2121 2122 return Diags.getNumErrors() == NumErrorsBefore; 2123 } 2124 2125 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2126 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2127 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2128 // Support both clang's -f[no-]color-diagnostics and gcc's 2129 // -f[no-]diagnostics-colors[=never|always|auto]. 2130 enum { 2131 Colors_On, 2132 Colors_Off, 2133 Colors_Auto 2134 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2135 for (auto *A : Args) { 2136 const Option &O = A->getOption(); 2137 if (O.matches(options::OPT_fcolor_diagnostics)) { 2138 ShowColors = Colors_On; 2139 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2140 ShowColors = Colors_Off; 2141 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2142 StringRef Value(A->getValue()); 2143 if (Value == "always") 2144 ShowColors = Colors_On; 2145 else if (Value == "never") 2146 ShowColors = Colors_Off; 2147 else if (Value == "auto") 2148 ShowColors = Colors_Auto; 2149 } 2150 } 2151 return ShowColors == Colors_On || 2152 (ShowColors == Colors_Auto && 2153 llvm::sys::Process::StandardErrHasColors()); 2154 } 2155 2156 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2157 DiagnosticsEngine &Diags) { 2158 bool Success = true; 2159 for (const auto &Prefix : VerifyPrefixes) { 2160 // Every prefix must start with a letter and contain only alphanumeric 2161 // characters, hyphens, and underscores. 2162 auto BadChar = llvm::find_if(Prefix, [](char C) { 2163 return !isAlphanumeric(C) && C != '-' && C != '_'; 2164 }); 2165 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2166 Success = false; 2167 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2168 Diags.Report(diag::note_drv_verify_prefix_spelling); 2169 } 2170 } 2171 return Success; 2172 } 2173 2174 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2175 SmallVectorImpl<const char *> &Args, 2176 CompilerInvocation::StringAllocator SA) { 2177 const FileSystemOptions &FileSystemOpts = Opts; 2178 2179 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2180 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2181 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2182 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2183 MERGER, EXTRACTOR, TABLE_INDEX) \ 2184 GENERATE_OPTION_WITH_MARSHALLING( \ 2185 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2186 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2187 #include "clang/Driver/Options.inc" 2188 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2189 } 2190 2191 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2192 DiagnosticsEngine &Diags) { 2193 unsigned NumErrorsBefore = Diags.getNumErrors(); 2194 2195 FileSystemOptions &FileSystemOpts = Opts; 2196 2197 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2198 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2199 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2200 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2201 MERGER, EXTRACTOR, TABLE_INDEX) \ 2202 PARSE_OPTION_WITH_MARSHALLING( \ 2203 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2204 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2205 #include "clang/Driver/Options.inc" 2206 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2207 2208 return Diags.getNumErrors() == NumErrorsBefore; 2209 } 2210 2211 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2212 SmallVectorImpl<const char *> &Args, 2213 CompilerInvocation::StringAllocator SA) { 2214 const MigratorOptions &MigratorOpts = Opts; 2215 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2216 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2217 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2218 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2219 MERGER, EXTRACTOR, TABLE_INDEX) \ 2220 GENERATE_OPTION_WITH_MARSHALLING( \ 2221 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2222 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2223 #include "clang/Driver/Options.inc" 2224 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2225 } 2226 2227 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2228 DiagnosticsEngine &Diags) { 2229 unsigned NumErrorsBefore = Diags.getNumErrors(); 2230 2231 MigratorOptions &MigratorOpts = Opts; 2232 2233 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2234 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2235 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2236 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2237 MERGER, EXTRACTOR, TABLE_INDEX) \ 2238 PARSE_OPTION_WITH_MARSHALLING( \ 2239 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2240 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2241 #include "clang/Driver/Options.inc" 2242 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2243 2244 return Diags.getNumErrors() == NumErrorsBefore; 2245 } 2246 2247 void CompilerInvocation::GenerateDiagnosticArgs( 2248 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2249 StringAllocator SA, bool DefaultDiagColor) { 2250 const DiagnosticOptions *DiagnosticOpts = &Opts; 2251 #define DIAG_OPTION_WITH_MARSHALLING( \ 2252 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2253 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2254 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2255 MERGER, EXTRACTOR, TABLE_INDEX) \ 2256 GENERATE_OPTION_WITH_MARSHALLING( \ 2257 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2258 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2259 #include "clang/Driver/Options.inc" 2260 #undef DIAG_OPTION_WITH_MARSHALLING 2261 2262 if (!Opts.DiagnosticSerializationFile.empty()) 2263 GenerateArg(Args, OPT_diagnostic_serialized_file, 2264 Opts.DiagnosticSerializationFile, SA); 2265 2266 if (Opts.ShowColors) 2267 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2268 2269 if (Opts.VerifyDiagnostics && 2270 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2271 GenerateArg(Args, OPT_verify, SA); 2272 2273 for (const auto &Prefix : Opts.VerifyPrefixes) 2274 if (Prefix != "expected") 2275 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2276 2277 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2278 if (VIU == DiagnosticLevelMask::None) { 2279 // This is the default, don't generate anything. 2280 } else if (VIU == DiagnosticLevelMask::All) { 2281 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2282 } else { 2283 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2284 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2285 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2286 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2287 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2288 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2289 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2290 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2291 } 2292 2293 for (const auto &Warning : Opts.Warnings) { 2294 // This option is automatically generated from UndefPrefixes. 2295 if (Warning == "undef-prefix") 2296 continue; 2297 Args.push_back(SA(StringRef("-W") + Warning)); 2298 } 2299 2300 for (const auto &Remark : Opts.Remarks) { 2301 // These arguments are generated from OptimizationRemark fields of 2302 // CodeGenOptions. 2303 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2304 "pass-analysis", "no-pass-analysis", 2305 "pass-missed", "no-pass-missed"}; 2306 if (llvm::is_contained(IgnoredRemarks, Remark)) 2307 continue; 2308 2309 Args.push_back(SA(StringRef("-R") + Remark)); 2310 } 2311 } 2312 2313 std::unique_ptr<DiagnosticOptions> 2314 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2315 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2316 unsigned MissingArgIndex, MissingArgCount; 2317 InputArgList Args = getDriverOptTable().ParseArgs( 2318 Argv.slice(1), MissingArgIndex, MissingArgCount); 2319 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2320 // Any errors that would be diagnosed here will also be diagnosed later, 2321 // when the DiagnosticsEngine actually exists. 2322 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2323 return DiagOpts; 2324 } 2325 2326 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2327 DiagnosticsEngine *Diags, 2328 bool DefaultDiagColor) { 2329 Optional<DiagnosticsEngine> IgnoringDiags; 2330 if (!Diags) { 2331 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2332 new IgnoringDiagConsumer()); 2333 Diags = &*IgnoringDiags; 2334 } 2335 2336 unsigned NumErrorsBefore = Diags->getNumErrors(); 2337 2338 // The key paths of diagnostic options defined in Options.td start with 2339 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2340 DiagnosticOptions *DiagnosticOpts = &Opts; 2341 2342 #define DIAG_OPTION_WITH_MARSHALLING( \ 2343 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2344 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2345 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2346 MERGER, EXTRACTOR, TABLE_INDEX) \ 2347 PARSE_OPTION_WITH_MARSHALLING( \ 2348 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2349 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2350 #include "clang/Driver/Options.inc" 2351 #undef DIAG_OPTION_WITH_MARSHALLING 2352 2353 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2354 2355 if (Arg *A = 2356 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2357 Opts.DiagnosticSerializationFile = A->getValue(); 2358 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2359 2360 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2361 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2362 if (Args.hasArg(OPT_verify)) 2363 Opts.VerifyPrefixes.push_back("expected"); 2364 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2365 // then sort it to prepare for fast lookup using std::binary_search. 2366 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2367 Opts.VerifyDiagnostics = false; 2368 else 2369 llvm::sort(Opts.VerifyPrefixes); 2370 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2371 parseDiagnosticLevelMask( 2372 "-verify-ignore-unexpected=", 2373 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2374 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2375 DiagMask = DiagnosticLevelMask::All; 2376 Opts.setVerifyIgnoreUnexpected(DiagMask); 2377 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2378 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2379 Diags->Report(diag::warn_ignoring_ftabstop_value) 2380 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2381 } 2382 2383 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2384 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2385 2386 return Diags->getNumErrors() == NumErrorsBefore; 2387 } 2388 2389 /// Parse the argument to the -ftest-module-file-extension 2390 /// command-line argument. 2391 /// 2392 /// \returns true on error, false on success. 2393 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2394 std::string &BlockName, 2395 unsigned &MajorVersion, 2396 unsigned &MinorVersion, 2397 bool &Hashed, 2398 std::string &UserInfo) { 2399 SmallVector<StringRef, 5> Args; 2400 Arg.split(Args, ':', 5); 2401 if (Args.size() < 5) 2402 return true; 2403 2404 BlockName = std::string(Args[0]); 2405 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2406 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2407 if (Args[3].getAsInteger(2, Hashed)) return true; 2408 if (Args.size() > 4) 2409 UserInfo = std::string(Args[4]); 2410 return false; 2411 } 2412 2413 /// Return a table that associates command line option specifiers with the 2414 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2415 /// intentionally missing, as this case is handled separately from other 2416 /// frontend options. 2417 static const auto &getFrontendActionTable() { 2418 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2419 {frontend::ASTDeclList, OPT_ast_list}, 2420 2421 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2422 {frontend::ASTDump, OPT_ast_dump_all}, 2423 {frontend::ASTDump, OPT_ast_dump_EQ}, 2424 {frontend::ASTDump, OPT_ast_dump}, 2425 {frontend::ASTDump, OPT_ast_dump_lookups}, 2426 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2427 2428 {frontend::ASTPrint, OPT_ast_print}, 2429 {frontend::ASTView, OPT_ast_view}, 2430 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2431 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2432 {frontend::DumpTokens, OPT_dump_tokens}, 2433 {frontend::EmitAssembly, OPT_S}, 2434 {frontend::EmitBC, OPT_emit_llvm_bc}, 2435 {frontend::EmitHTML, OPT_emit_html}, 2436 {frontend::EmitLLVM, OPT_emit_llvm}, 2437 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2438 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2439 {frontend::EmitObj, OPT_emit_obj}, 2440 {frontend::ExtractAPI, OPT_extract_api}, 2441 2442 {frontend::FixIt, OPT_fixit_EQ}, 2443 {frontend::FixIt, OPT_fixit}, 2444 2445 {frontend::GenerateModule, OPT_emit_module}, 2446 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2447 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2448 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2449 {frontend::GeneratePCH, OPT_emit_pch}, 2450 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2451 {frontend::InitOnly, OPT_init_only}, 2452 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2453 {frontend::ModuleFileInfo, OPT_module_file_info}, 2454 {frontend::VerifyPCH, OPT_verify_pch}, 2455 {frontend::PrintPreamble, OPT_print_preamble}, 2456 {frontend::PrintPreprocessedInput, OPT_E}, 2457 {frontend::TemplightDump, OPT_templight_dump}, 2458 {frontend::RewriteMacros, OPT_rewrite_macros}, 2459 {frontend::RewriteObjC, OPT_rewrite_objc}, 2460 {frontend::RewriteTest, OPT_rewrite_test}, 2461 {frontend::RunAnalysis, OPT_analyze}, 2462 {frontend::MigrateSource, OPT_migrate}, 2463 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2464 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2465 OPT_print_dependency_directives_minimized_source}, 2466 }; 2467 2468 return Table; 2469 } 2470 2471 /// Maps command line option to frontend action. 2472 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2473 for (const auto &ActionOpt : getFrontendActionTable()) 2474 if (ActionOpt.second == Opt.getID()) 2475 return ActionOpt.first; 2476 2477 return None; 2478 } 2479 2480 /// Maps frontend action to command line option. 2481 static Optional<OptSpecifier> 2482 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2483 for (const auto &ActionOpt : getFrontendActionTable()) 2484 if (ActionOpt.first == ProgramAction) 2485 return OptSpecifier(ActionOpt.second); 2486 2487 return None; 2488 } 2489 2490 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2491 SmallVectorImpl<const char *> &Args, 2492 CompilerInvocation::StringAllocator SA, 2493 bool IsHeader) { 2494 const FrontendOptions &FrontendOpts = Opts; 2495 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2496 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2497 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2498 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2499 MERGER, EXTRACTOR, TABLE_INDEX) \ 2500 GENERATE_OPTION_WITH_MARSHALLING( \ 2501 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2502 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2503 #include "clang/Driver/Options.inc" 2504 #undef FRONTEND_OPTION_WITH_MARSHALLING 2505 2506 Optional<OptSpecifier> ProgramActionOpt = 2507 getProgramActionOpt(Opts.ProgramAction); 2508 2509 // Generating a simple flag covers most frontend actions. 2510 std::function<void()> GenerateProgramAction = [&]() { 2511 GenerateArg(Args, *ProgramActionOpt, SA); 2512 }; 2513 2514 if (!ProgramActionOpt) { 2515 // PluginAction is the only program action handled separately. 2516 assert(Opts.ProgramAction == frontend::PluginAction && 2517 "Frontend action without option."); 2518 GenerateProgramAction = [&]() { 2519 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2520 }; 2521 } 2522 2523 // FIXME: Simplify the complex 'AST dump' command line. 2524 if (Opts.ProgramAction == frontend::ASTDump) { 2525 GenerateProgramAction = [&]() { 2526 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2527 // marshalling infrastructure. 2528 2529 if (Opts.ASTDumpFormat != ADOF_Default) { 2530 StringRef Format; 2531 switch (Opts.ASTDumpFormat) { 2532 case ADOF_Default: 2533 llvm_unreachable("Default AST dump format."); 2534 case ADOF_JSON: 2535 Format = "json"; 2536 break; 2537 } 2538 2539 if (Opts.ASTDumpAll) 2540 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2541 if (Opts.ASTDumpDecls) 2542 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2543 } else { 2544 if (Opts.ASTDumpAll) 2545 GenerateArg(Args, OPT_ast_dump_all, SA); 2546 if (Opts.ASTDumpDecls) 2547 GenerateArg(Args, OPT_ast_dump, SA); 2548 } 2549 }; 2550 } 2551 2552 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2553 GenerateProgramAction = [&]() { 2554 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2555 }; 2556 } 2557 2558 GenerateProgramAction(); 2559 2560 for (const auto &PluginArgs : Opts.PluginArgs) { 2561 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2562 const char *Spelling = 2563 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2564 for (const auto &PluginArg : PluginArgs.second) 2565 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2566 } 2567 2568 for (const auto &Ext : Opts.ModuleFileExtensions) 2569 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2570 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2571 2572 if (!Opts.CodeCompletionAt.FileName.empty()) 2573 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2574 SA); 2575 2576 for (const auto &Plugin : Opts.Plugins) 2577 GenerateArg(Args, OPT_load, Plugin, SA); 2578 2579 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2580 2581 for (const auto &ModuleFile : Opts.ModuleFiles) 2582 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2583 2584 if (Opts.AuxTargetCPU.hasValue()) 2585 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2586 2587 if (Opts.AuxTargetFeatures.hasValue()) 2588 for (const auto &Feature : *Opts.AuxTargetFeatures) 2589 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2590 2591 { 2592 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2593 StringRef ModuleMap = 2594 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2595 StringRef HeaderUnit = ""; 2596 switch (Opts.DashX.getHeaderUnitKind()) { 2597 case InputKind::HeaderUnit_None: 2598 break; 2599 case InputKind::HeaderUnit_User: 2600 HeaderUnit = "-user"; 2601 break; 2602 case InputKind::HeaderUnit_System: 2603 HeaderUnit = "-system"; 2604 break; 2605 case InputKind::HeaderUnit_Abs: 2606 HeaderUnit = "-header-unit"; 2607 break; 2608 } 2609 StringRef Header = IsHeader ? "-header" : ""; 2610 2611 StringRef Lang; 2612 switch (Opts.DashX.getLanguage()) { 2613 case Language::C: 2614 Lang = "c"; 2615 break; 2616 case Language::OpenCL: 2617 Lang = "cl"; 2618 break; 2619 case Language::OpenCLCXX: 2620 Lang = "clcpp"; 2621 break; 2622 case Language::CUDA: 2623 Lang = "cuda"; 2624 break; 2625 case Language::HIP: 2626 Lang = "hip"; 2627 break; 2628 case Language::CXX: 2629 Lang = "c++"; 2630 break; 2631 case Language::ObjC: 2632 Lang = "objective-c"; 2633 break; 2634 case Language::ObjCXX: 2635 Lang = "objective-c++"; 2636 break; 2637 case Language::RenderScript: 2638 Lang = "renderscript"; 2639 break; 2640 case Language::Asm: 2641 Lang = "assembler-with-cpp"; 2642 break; 2643 case Language::Unknown: 2644 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2645 "Generating -x argument for unknown language (not precompiled)."); 2646 Lang = "ast"; 2647 break; 2648 case Language::LLVM_IR: 2649 Lang = "ir"; 2650 break; 2651 case Language::HLSL: 2652 Lang = "hlsl"; 2653 break; 2654 } 2655 2656 GenerateArg(Args, OPT_x, 2657 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2658 } 2659 2660 // OPT_INPUT has a unique class, generate it directly. 2661 for (const auto &Input : Opts.Inputs) 2662 Args.push_back(SA(Input.getFile())); 2663 } 2664 2665 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2666 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2667 unsigned NumErrorsBefore = Diags.getNumErrors(); 2668 2669 FrontendOptions &FrontendOpts = Opts; 2670 2671 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2672 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2673 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2674 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2675 MERGER, EXTRACTOR, TABLE_INDEX) \ 2676 PARSE_OPTION_WITH_MARSHALLING( \ 2677 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2678 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2679 #include "clang/Driver/Options.inc" 2680 #undef FRONTEND_OPTION_WITH_MARSHALLING 2681 2682 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2683 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2684 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2685 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2686 assert(ProgramAction && "Option specifier not in Action_Group."); 2687 2688 if (ProgramAction == frontend::ASTDump && 2689 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2690 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2691 .CaseLower("default", ADOF_Default) 2692 .CaseLower("json", ADOF_JSON) 2693 .Default(std::numeric_limits<unsigned>::max()); 2694 2695 if (Val != std::numeric_limits<unsigned>::max()) 2696 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2697 else { 2698 Diags.Report(diag::err_drv_invalid_value) 2699 << A->getAsString(Args) << A->getValue(); 2700 Opts.ASTDumpFormat = ADOF_Default; 2701 } 2702 } 2703 2704 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2705 Opts.FixItSuffix = A->getValue(); 2706 2707 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2708 StringRef ArgStr = 2709 Args.hasArg(OPT_interface_stub_version_EQ) 2710 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2711 : "ifs-v1"; 2712 if (ArgStr == "experimental-yaml-elf-v1" || 2713 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2714 ArgStr == "experimental-tapi-elf-v1") { 2715 std::string ErrorMessage = 2716 "Invalid interface stub format: " + ArgStr.str() + 2717 " is deprecated."; 2718 Diags.Report(diag::err_drv_invalid_value) 2719 << "Must specify a valid interface stub format type, ie: " 2720 "-interface-stub-version=ifs-v1" 2721 << ErrorMessage; 2722 ProgramAction = frontend::ParseSyntaxOnly; 2723 } else if (!ArgStr.startswith("ifs-")) { 2724 std::string ErrorMessage = 2725 "Invalid interface stub format: " + ArgStr.str() + "."; 2726 Diags.Report(diag::err_drv_invalid_value) 2727 << "Must specify a valid interface stub format type, ie: " 2728 "-interface-stub-version=ifs-v1" 2729 << ErrorMessage; 2730 ProgramAction = frontend::ParseSyntaxOnly; 2731 } 2732 } 2733 2734 Opts.ProgramAction = *ProgramAction; 2735 } 2736 2737 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2738 Opts.Plugins.emplace_back(A->getValue(0)); 2739 Opts.ProgramAction = frontend::PluginAction; 2740 Opts.ActionName = A->getValue(); 2741 } 2742 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2743 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2744 2745 for (const std::string &Arg : 2746 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2747 std::string BlockName; 2748 unsigned MajorVersion; 2749 unsigned MinorVersion; 2750 bool Hashed; 2751 std::string UserInfo; 2752 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2753 MinorVersion, Hashed, UserInfo)) { 2754 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2755 2756 continue; 2757 } 2758 2759 // Add the testing module file extension. 2760 Opts.ModuleFileExtensions.push_back( 2761 std::make_shared<TestModuleFileExtension>( 2762 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2763 } 2764 2765 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2766 Opts.CodeCompletionAt = 2767 ParsedSourceLocation::FromString(A->getValue()); 2768 if (Opts.CodeCompletionAt.FileName.empty()) 2769 Diags.Report(diag::err_drv_invalid_value) 2770 << A->getAsString(Args) << A->getValue(); 2771 } 2772 2773 Opts.Plugins = Args.getAllArgValues(OPT_load); 2774 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2775 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2776 // Only the -fmodule-file=<file> form. 2777 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2778 StringRef Val = A->getValue(); 2779 if (!Val.contains('=')) 2780 Opts.ModuleFiles.push_back(std::string(Val)); 2781 } 2782 2783 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2784 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2785 << "-emit-module"; 2786 2787 if (Args.hasArg(OPT_aux_target_cpu)) 2788 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2789 if (Args.hasArg(OPT_aux_target_feature)) 2790 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2791 2792 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2793 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2794 Diags.Report(diag::err_drv_argument_not_allowed_with) 2795 << "ARC migration" << "ObjC migration"; 2796 } 2797 2798 InputKind DashX(Language::Unknown); 2799 if (const Arg *A = Args.getLastArg(OPT_x)) { 2800 StringRef XValue = A->getValue(); 2801 2802 // Parse suffixes: 2803 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2804 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2805 bool Preprocessed = XValue.consume_back("-cpp-output"); 2806 bool ModuleMap = XValue.consume_back("-module-map"); 2807 // Detect and consume the header indicator. 2808 bool IsHeader = 2809 XValue != "precompiled-header" && XValue.consume_back("-header"); 2810 2811 // If we have c++-{user,system}-header, that indicates a header unit input 2812 // likewise, if the user put -fmodule-header together with a header with an 2813 // absolute path (header-unit-header). 2814 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2815 if (IsHeader || Preprocessed) { 2816 if (XValue.consume_back("-header-unit")) 2817 HUK = InputKind::HeaderUnit_Abs; 2818 else if (XValue.consume_back("-system")) 2819 HUK = InputKind::HeaderUnit_System; 2820 else if (XValue.consume_back("-user")) 2821 HUK = InputKind::HeaderUnit_User; 2822 } 2823 2824 // The value set by this processing is an un-preprocessed source which is 2825 // not intended to be a module map or header unit. 2826 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2827 HUK == InputKind::HeaderUnit_None; 2828 2829 // Principal languages. 2830 DashX = llvm::StringSwitch<InputKind>(XValue) 2831 .Case("c", Language::C) 2832 .Case("cl", Language::OpenCL) 2833 .Case("clcpp", Language::OpenCLCXX) 2834 .Case("cuda", Language::CUDA) 2835 .Case("hip", Language::HIP) 2836 .Case("c++", Language::CXX) 2837 .Case("objective-c", Language::ObjC) 2838 .Case("objective-c++", Language::ObjCXX) 2839 .Case("renderscript", Language::RenderScript) 2840 .Case("hlsl", Language::HLSL) 2841 .Default(Language::Unknown); 2842 2843 // "objc[++]-cpp-output" is an acceptable synonym for 2844 // "objective-c[++]-cpp-output". 2845 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2846 HUK == InputKind::HeaderUnit_None) 2847 DashX = llvm::StringSwitch<InputKind>(XValue) 2848 .Case("objc", Language::ObjC) 2849 .Case("objc++", Language::ObjCXX) 2850 .Default(Language::Unknown); 2851 2852 // Some special cases cannot be combined with suffixes. 2853 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2854 HUK == InputKind::HeaderUnit_None) 2855 DashX = llvm::StringSwitch<InputKind>(XValue) 2856 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2857 .Case("assembler-with-cpp", Language::Asm) 2858 .Cases("ast", "pcm", "precompiled-header", 2859 InputKind(Language::Unknown, InputKind::Precompiled)) 2860 .Case("ir", Language::LLVM_IR) 2861 .Default(Language::Unknown); 2862 2863 if (DashX.isUnknown()) 2864 Diags.Report(diag::err_drv_invalid_value) 2865 << A->getAsString(Args) << A->getValue(); 2866 2867 if (Preprocessed) 2868 DashX = DashX.getPreprocessed(); 2869 // A regular header is considered mutually exclusive with a header unit. 2870 if (HUK != InputKind::HeaderUnit_None) { 2871 DashX = DashX.withHeaderUnit(HUK); 2872 IsHeaderFile = true; 2873 } else if (IsHeaderFile) 2874 DashX = DashX.getHeader(); 2875 if (ModuleMap) 2876 DashX = DashX.withFormat(InputKind::ModuleMap); 2877 } 2878 2879 // '-' is the default input if none is given. 2880 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2881 Opts.Inputs.clear(); 2882 if (Inputs.empty()) 2883 Inputs.push_back("-"); 2884 2885 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2886 Inputs.size() > 1) 2887 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2888 2889 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2890 InputKind IK = DashX; 2891 if (IK.isUnknown()) { 2892 IK = FrontendOptions::getInputKindForExtension( 2893 StringRef(Inputs[i]).rsplit('.').second); 2894 // FIXME: Warn on this? 2895 if (IK.isUnknown()) 2896 IK = Language::C; 2897 // FIXME: Remove this hack. 2898 if (i == 0) 2899 DashX = IK; 2900 } 2901 2902 bool IsSystem = false; 2903 2904 // The -emit-module action implicitly takes a module map. 2905 if (Opts.ProgramAction == frontend::GenerateModule && 2906 IK.getFormat() == InputKind::Source) { 2907 IK = IK.withFormat(InputKind::ModuleMap); 2908 IsSystem = Opts.IsSystemModule; 2909 } 2910 2911 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2912 } 2913 2914 Opts.DashX = DashX; 2915 2916 return Diags.getNumErrors() == NumErrorsBefore; 2917 } 2918 2919 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2920 void *MainAddr) { 2921 std::string ClangExecutable = 2922 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2923 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2924 } 2925 2926 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2927 SmallVectorImpl<const char *> &Args, 2928 CompilerInvocation::StringAllocator SA) { 2929 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2930 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2931 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2932 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2933 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2934 MERGER, EXTRACTOR, TABLE_INDEX) \ 2935 GENERATE_OPTION_WITH_MARSHALLING( \ 2936 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2937 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2938 #include "clang/Driver/Options.inc" 2939 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2940 2941 if (Opts.UseLibcxx) 2942 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2943 2944 if (!Opts.ModuleCachePath.empty()) 2945 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2946 2947 for (const auto &File : Opts.PrebuiltModuleFiles) 2948 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2949 2950 for (const auto &Path : Opts.PrebuiltModulePaths) 2951 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2952 2953 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2954 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2955 2956 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2957 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2958 llvm::Optional<bool> IsFramework, 2959 llvm::Optional<bool> IgnoreSysRoot) { 2960 return llvm::is_contained(Groups, Entry.Group) && 2961 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2962 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2963 }; 2964 2965 auto It = Opts.UserEntries.begin(); 2966 auto End = Opts.UserEntries.end(); 2967 2968 // Add -I..., -F..., and -index-header-map options in order. 2969 for (; It < End && 2970 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2971 ++It) { 2972 OptSpecifier Opt = [It, Matches]() { 2973 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2974 return OPT_F; 2975 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2976 return OPT_I; 2977 if (Matches(*It, frontend::Angled, true, true)) 2978 return OPT_F; 2979 if (Matches(*It, frontend::Angled, false, true)) 2980 return OPT_I; 2981 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2982 }(); 2983 2984 if (It->Group == frontend::IndexHeaderMap) 2985 GenerateArg(Args, OPT_index_header_map, SA); 2986 GenerateArg(Args, Opt, It->Path, SA); 2987 }; 2988 2989 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2990 // have already been generated as "-I[xx]yy". If that's the case, their 2991 // position on command line was such that this has no semantic impact on 2992 // include paths. 2993 for (; It < End && 2994 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2995 ++It) { 2996 OptSpecifier Opt = 2997 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2998 GenerateArg(Args, Opt, It->Path, SA); 2999 } 3000 3001 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3002 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3003 // command line was such that this has no semantic impact on include paths. 3004 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3005 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3006 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3007 GenerateArg(Args, OPT_iquote, It->Path, SA); 3008 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3009 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3010 It->Path, SA); 3011 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3012 GenerateArg(Args, OPT_iframework, It->Path, SA); 3013 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3014 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3015 3016 // Add the paths for the various language specific isystem flags. 3017 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3018 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3019 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3020 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3021 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3022 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3023 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3024 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3025 3026 // Add the internal paths from a driver that detects standard include paths. 3027 // Note: Some paths that came from "-internal-isystem" arguments may have 3028 // already been generated as "-isystem". If that's the case, their position on 3029 // command line was such that this has no semantic impact on include paths. 3030 for (; It < End && 3031 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3032 ++It) { 3033 OptSpecifier Opt = It->Group == frontend::System 3034 ? OPT_internal_isystem 3035 : OPT_internal_externc_isystem; 3036 GenerateArg(Args, Opt, It->Path, SA); 3037 } 3038 3039 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3040 3041 // Add the path prefixes which are implicitly treated as being system headers. 3042 for (const auto &P : Opts.SystemHeaderPrefixes) { 3043 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3044 : OPT_no_system_header_prefix; 3045 GenerateArg(Args, Opt, P.Prefix, SA); 3046 } 3047 3048 for (const std::string &F : Opts.VFSOverlayFiles) 3049 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3050 } 3051 3052 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3053 DiagnosticsEngine &Diags, 3054 const std::string &WorkingDir) { 3055 unsigned NumErrorsBefore = Diags.getNumErrors(); 3056 3057 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3058 3059 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3060 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3061 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3062 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3063 MERGER, EXTRACTOR, TABLE_INDEX) \ 3064 PARSE_OPTION_WITH_MARSHALLING( \ 3065 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3066 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3067 #include "clang/Driver/Options.inc" 3068 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3069 3070 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3071 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3072 3073 // Canonicalize -fmodules-cache-path before storing it. 3074 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3075 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3076 if (WorkingDir.empty()) 3077 llvm::sys::fs::make_absolute(P); 3078 else 3079 llvm::sys::fs::make_absolute(WorkingDir, P); 3080 } 3081 llvm::sys::path::remove_dots(P); 3082 Opts.ModuleCachePath = std::string(P.str()); 3083 3084 // Only the -fmodule-file=<name>=<file> form. 3085 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3086 StringRef Val = A->getValue(); 3087 if (Val.contains('=')) { 3088 auto Split = Val.split('='); 3089 Opts.PrebuiltModuleFiles.insert( 3090 {std::string(Split.first), std::string(Split.second)}); 3091 } 3092 } 3093 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3094 Opts.AddPrebuiltModulePath(A->getValue()); 3095 3096 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3097 StringRef MacroDef = A->getValue(); 3098 Opts.ModulesIgnoreMacros.insert( 3099 llvm::CachedHashString(MacroDef.split('=').first)); 3100 } 3101 3102 // Add -I..., -F..., and -index-header-map options in order. 3103 bool IsIndexHeaderMap = false; 3104 bool IsSysrootSpecified = 3105 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3106 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3107 if (A->getOption().matches(OPT_index_header_map)) { 3108 // -index-header-map applies to the next -I or -F. 3109 IsIndexHeaderMap = true; 3110 continue; 3111 } 3112 3113 frontend::IncludeDirGroup Group = 3114 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3115 3116 bool IsFramework = A->getOption().matches(OPT_F); 3117 std::string Path = A->getValue(); 3118 3119 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3120 SmallString<32> Buffer; 3121 llvm::sys::path::append(Buffer, Opts.Sysroot, 3122 llvm::StringRef(A->getValue()).substr(1)); 3123 Path = std::string(Buffer.str()); 3124 } 3125 3126 Opts.AddPath(Path, Group, IsFramework, 3127 /*IgnoreSysroot*/ true); 3128 IsIndexHeaderMap = false; 3129 } 3130 3131 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3132 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3133 for (const auto *A : 3134 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3135 if (A->getOption().matches(OPT_iprefix)) 3136 Prefix = A->getValue(); 3137 else if (A->getOption().matches(OPT_iwithprefix)) 3138 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3139 else 3140 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3141 } 3142 3143 for (const auto *A : Args.filtered(OPT_idirafter)) 3144 Opts.AddPath(A->getValue(), frontend::After, false, true); 3145 for (const auto *A : Args.filtered(OPT_iquote)) 3146 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3147 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3148 Opts.AddPath(A->getValue(), frontend::System, false, 3149 !A->getOption().matches(OPT_iwithsysroot)); 3150 for (const auto *A : Args.filtered(OPT_iframework)) 3151 Opts.AddPath(A->getValue(), frontend::System, true, true); 3152 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3153 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3154 /*IgnoreSysRoot=*/false); 3155 3156 // Add the paths for the various language specific isystem flags. 3157 for (const auto *A : Args.filtered(OPT_c_isystem)) 3158 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3159 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3160 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3161 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3162 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3163 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3164 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3165 3166 // Add the internal paths from a driver that detects standard include paths. 3167 for (const auto *A : 3168 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3169 frontend::IncludeDirGroup Group = frontend::System; 3170 if (A->getOption().matches(OPT_internal_externc_isystem)) 3171 Group = frontend::ExternCSystem; 3172 Opts.AddPath(A->getValue(), Group, false, true); 3173 } 3174 3175 // Add the path prefixes which are implicitly treated as being system headers. 3176 for (const auto *A : 3177 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3178 Opts.AddSystemHeaderPrefix( 3179 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3180 3181 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3182 Opts.AddVFSOverlayFile(A->getValue()); 3183 3184 return Diags.getNumErrors() == NumErrorsBefore; 3185 } 3186 3187 /// Check if input file kind and language standard are compatible. 3188 static bool IsInputCompatibleWithStandard(InputKind IK, 3189 const LangStandard &S) { 3190 switch (IK.getLanguage()) { 3191 case Language::Unknown: 3192 case Language::LLVM_IR: 3193 llvm_unreachable("should not parse language flags for this input"); 3194 3195 case Language::C: 3196 case Language::ObjC: 3197 case Language::RenderScript: 3198 return S.getLanguage() == Language::C; 3199 3200 case Language::OpenCL: 3201 return S.getLanguage() == Language::OpenCL || 3202 S.getLanguage() == Language::OpenCLCXX; 3203 3204 case Language::OpenCLCXX: 3205 return S.getLanguage() == Language::OpenCLCXX; 3206 3207 case Language::CXX: 3208 case Language::ObjCXX: 3209 return S.getLanguage() == Language::CXX; 3210 3211 case Language::CUDA: 3212 // FIXME: What -std= values should be permitted for CUDA compilations? 3213 return S.getLanguage() == Language::CUDA || 3214 S.getLanguage() == Language::CXX; 3215 3216 case Language::HIP: 3217 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3218 3219 case Language::Asm: 3220 // Accept (and ignore) all -std= values. 3221 // FIXME: The -std= value is not ignored; it affects the tokenization 3222 // and preprocessing rules if we're preprocessing this asm input. 3223 return true; 3224 3225 case Language::HLSL: 3226 return S.getLanguage() == Language::HLSL; 3227 } 3228 3229 llvm_unreachable("unexpected input language"); 3230 } 3231 3232 /// Get language name for given input kind. 3233 static StringRef GetInputKindName(InputKind IK) { 3234 switch (IK.getLanguage()) { 3235 case Language::C: 3236 return "C"; 3237 case Language::ObjC: 3238 return "Objective-C"; 3239 case Language::CXX: 3240 return "C++"; 3241 case Language::ObjCXX: 3242 return "Objective-C++"; 3243 case Language::OpenCL: 3244 return "OpenCL"; 3245 case Language::OpenCLCXX: 3246 return "C++ for OpenCL"; 3247 case Language::CUDA: 3248 return "CUDA"; 3249 case Language::RenderScript: 3250 return "RenderScript"; 3251 case Language::HIP: 3252 return "HIP"; 3253 3254 case Language::Asm: 3255 return "Asm"; 3256 case Language::LLVM_IR: 3257 return "LLVM IR"; 3258 3259 case Language::HLSL: 3260 return "HLSL"; 3261 3262 case Language::Unknown: 3263 break; 3264 } 3265 llvm_unreachable("unknown input language"); 3266 } 3267 3268 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3269 SmallVectorImpl<const char *> &Args, 3270 StringAllocator SA, 3271 const llvm::Triple &T, InputKind IK) { 3272 if (IK.getFormat() == InputKind::Precompiled || 3273 IK.getLanguage() == Language::LLVM_IR) { 3274 if (Opts.ObjCAutoRefCount) 3275 GenerateArg(Args, OPT_fobjc_arc, SA); 3276 if (Opts.PICLevel != 0) 3277 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3278 if (Opts.PIE) 3279 GenerateArg(Args, OPT_pic_is_pie, SA); 3280 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3281 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3282 3283 return; 3284 } 3285 3286 OptSpecifier StdOpt; 3287 switch (Opts.LangStd) { 3288 case LangStandard::lang_opencl10: 3289 case LangStandard::lang_opencl11: 3290 case LangStandard::lang_opencl12: 3291 case LangStandard::lang_opencl20: 3292 case LangStandard::lang_opencl30: 3293 case LangStandard::lang_openclcpp10: 3294 case LangStandard::lang_openclcpp2021: 3295 StdOpt = OPT_cl_std_EQ; 3296 break; 3297 default: 3298 StdOpt = OPT_std_EQ; 3299 break; 3300 } 3301 3302 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3303 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3304 3305 if (Opts.IncludeDefaultHeader) 3306 GenerateArg(Args, OPT_finclude_default_header, SA); 3307 if (Opts.DeclareOpenCLBuiltins) 3308 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3309 3310 const LangOptions *LangOpts = &Opts; 3311 3312 #define LANG_OPTION_WITH_MARSHALLING( \ 3313 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3314 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3315 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3316 MERGER, EXTRACTOR, TABLE_INDEX) \ 3317 GENERATE_OPTION_WITH_MARSHALLING( \ 3318 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3319 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3320 #include "clang/Driver/Options.inc" 3321 #undef LANG_OPTION_WITH_MARSHALLING 3322 3323 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3324 3325 if (Opts.ObjC) { 3326 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3327 3328 if (Opts.GC == LangOptions::GCOnly) 3329 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3330 else if (Opts.GC == LangOptions::HybridGC) 3331 GenerateArg(Args, OPT_fobjc_gc, SA); 3332 else if (Opts.ObjCAutoRefCount == 1) 3333 GenerateArg(Args, OPT_fobjc_arc, SA); 3334 3335 if (Opts.ObjCWeakRuntime) 3336 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3337 3338 if (Opts.ObjCWeak) 3339 GenerateArg(Args, OPT_fobjc_weak, SA); 3340 3341 if (Opts.ObjCSubscriptingLegacyRuntime) 3342 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3343 } 3344 3345 if (Opts.GNUCVersion != 0) { 3346 unsigned Major = Opts.GNUCVersion / 100 / 100; 3347 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3348 unsigned Patch = Opts.GNUCVersion % 100; 3349 GenerateArg(Args, OPT_fgnuc_version_EQ, 3350 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3351 } 3352 3353 if (Opts.IgnoreXCOFFVisibility) 3354 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3355 3356 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3357 GenerateArg(Args, OPT_ftrapv, SA); 3358 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3359 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3360 GenerateArg(Args, OPT_fwrapv, SA); 3361 } 3362 3363 if (Opts.MSCompatibilityVersion != 0) { 3364 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3365 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3366 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3367 GenerateArg(Args, OPT_fms_compatibility_version, 3368 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3369 } 3370 3371 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3372 if (!Opts.Trigraphs) 3373 GenerateArg(Args, OPT_fno_trigraphs, SA); 3374 } else { 3375 if (Opts.Trigraphs) 3376 GenerateArg(Args, OPT_ftrigraphs, SA); 3377 } 3378 3379 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3380 GenerateArg(Args, OPT_fblocks, SA); 3381 3382 if (Opts.ConvergentFunctions && 3383 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3384 GenerateArg(Args, OPT_fconvergent_functions, SA); 3385 3386 if (Opts.NoBuiltin && !Opts.Freestanding) 3387 GenerateArg(Args, OPT_fno_builtin, SA); 3388 3389 if (!Opts.NoBuiltin) 3390 for (const auto &Func : Opts.NoBuiltinFuncs) 3391 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3392 3393 if (Opts.LongDoubleSize == 128) 3394 GenerateArg(Args, OPT_mlong_double_128, SA); 3395 else if (Opts.LongDoubleSize == 64) 3396 GenerateArg(Args, OPT_mlong_double_64, SA); 3397 else if (Opts.LongDoubleSize == 80) 3398 GenerateArg(Args, OPT_mlong_double_80, SA); 3399 3400 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3401 3402 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3403 // '-fopenmp-targets='. 3404 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3405 GenerateArg(Args, OPT_fopenmp, SA); 3406 3407 if (Opts.OpenMP != 50) 3408 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3409 3410 if (!Opts.OpenMPUseTLS) 3411 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3412 3413 if (Opts.OpenMPIsDevice) 3414 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3415 3416 if (Opts.OpenMPIRBuilder) 3417 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3418 } 3419 3420 if (Opts.OpenMPSimd) { 3421 GenerateArg(Args, OPT_fopenmp_simd, SA); 3422 3423 if (Opts.OpenMP != 50) 3424 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3425 } 3426 3427 if (Opts.OpenMPThreadSubscription) 3428 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3429 3430 if (Opts.OpenMPTeamSubscription) 3431 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3432 3433 if (Opts.OpenMPTargetDebug != 0) 3434 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3435 Twine(Opts.OpenMPTargetDebug), SA); 3436 3437 if (Opts.OpenMPCUDANumSMs != 0) 3438 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3439 Twine(Opts.OpenMPCUDANumSMs), SA); 3440 3441 if (Opts.OpenMPCUDABlocksPerSM != 0) 3442 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3443 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3444 3445 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3446 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3447 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3448 3449 if (!Opts.OMPTargetTriples.empty()) { 3450 std::string Targets; 3451 llvm::raw_string_ostream OS(Targets); 3452 llvm::interleave( 3453 Opts.OMPTargetTriples, OS, 3454 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3455 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3456 } 3457 3458 if (!Opts.OMPHostIRFile.empty()) 3459 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3460 3461 if (Opts.OpenMPCUDAMode) 3462 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3463 3464 if (Opts.OpenMPCUDAForceFullRuntime) 3465 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3466 3467 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3468 // generated from CodeGenOptions. 3469 3470 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3471 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3472 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3473 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3474 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3475 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3476 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3477 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3478 3479 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3480 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3481 3482 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3483 for (const std::string &F : Opts.NoSanitizeFiles) 3484 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3485 3486 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3487 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3488 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3489 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3490 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3491 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3492 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3493 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3494 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3495 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3496 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3497 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3498 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3499 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3500 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3501 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3502 3503 if (Opts.getSignReturnAddressScope() == 3504 LangOptions::SignReturnAddressScopeKind::All) 3505 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3506 else if (Opts.getSignReturnAddressScope() == 3507 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3508 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3509 3510 if (Opts.getSignReturnAddressKey() == 3511 LangOptions::SignReturnAddressKeyKind::BKey) 3512 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3513 3514 if (Opts.CXXABI) 3515 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3516 SA); 3517 3518 if (Opts.RelativeCXXABIVTables) 3519 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3520 else 3521 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3522 3523 if (Opts.UseTargetPathSeparator) 3524 GenerateArg(Args, OPT_ffile_reproducible, SA); 3525 else 3526 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3527 3528 for (const auto &MP : Opts.MacroPrefixMap) 3529 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3530 3531 if (!Opts.RandstructSeed.empty()) 3532 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3533 } 3534 3535 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3536 InputKind IK, const llvm::Triple &T, 3537 std::vector<std::string> &Includes, 3538 DiagnosticsEngine &Diags) { 3539 unsigned NumErrorsBefore = Diags.getNumErrors(); 3540 3541 if (IK.getFormat() == InputKind::Precompiled || 3542 IK.getLanguage() == Language::LLVM_IR) { 3543 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3544 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3545 // what the input type is. 3546 if (Args.hasArg(OPT_fobjc_arc)) 3547 Opts.ObjCAutoRefCount = 1; 3548 // PICLevel and PIELevel are needed during code generation and this should 3549 // be set regardless of the input type. 3550 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3551 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3552 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3553 Diags, Opts.Sanitize); 3554 3555 return Diags.getNumErrors() == NumErrorsBefore; 3556 } 3557 3558 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3559 // FIXME: Should we really be parsing this for an Language::Asm input? 3560 3561 // FIXME: Cleanup per-file based stuff. 3562 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3563 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3564 LangStd = LangStandard::getLangKind(A->getValue()); 3565 if (LangStd == LangStandard::lang_unspecified) { 3566 Diags.Report(diag::err_drv_invalid_value) 3567 << A->getAsString(Args) << A->getValue(); 3568 // Report supported standards with short description. 3569 for (unsigned KindValue = 0; 3570 KindValue != LangStandard::lang_unspecified; 3571 ++KindValue) { 3572 const LangStandard &Std = LangStandard::getLangStandardForKind( 3573 static_cast<LangStandard::Kind>(KindValue)); 3574 if (IsInputCompatibleWithStandard(IK, Std)) { 3575 auto Diag = Diags.Report(diag::note_drv_use_standard); 3576 Diag << Std.getName() << Std.getDescription(); 3577 unsigned NumAliases = 0; 3578 #define LANGSTANDARD(id, name, lang, desc, features) 3579 #define LANGSTANDARD_ALIAS(id, alias) \ 3580 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3581 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3582 #include "clang/Basic/LangStandards.def" 3583 Diag << NumAliases; 3584 #define LANGSTANDARD(id, name, lang, desc, features) 3585 #define LANGSTANDARD_ALIAS(id, alias) \ 3586 if (KindValue == LangStandard::lang_##id) Diag << alias; 3587 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3588 #include "clang/Basic/LangStandards.def" 3589 } 3590 } 3591 } else { 3592 // Valid standard, check to make sure language and standard are 3593 // compatible. 3594 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3595 if (!IsInputCompatibleWithStandard(IK, Std)) { 3596 Diags.Report(diag::err_drv_argument_not_allowed_with) 3597 << A->getAsString(Args) << GetInputKindName(IK); 3598 } 3599 } 3600 } 3601 3602 // -cl-std only applies for OpenCL language standards. 3603 // Override the -std option in this case. 3604 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3605 LangStandard::Kind OpenCLLangStd 3606 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3607 .Cases("cl", "CL", LangStandard::lang_opencl10) 3608 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3609 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3610 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3611 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3612 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3613 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3614 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3615 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3616 .Default(LangStandard::lang_unspecified); 3617 3618 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3619 Diags.Report(diag::err_drv_invalid_value) 3620 << A->getAsString(Args) << A->getValue(); 3621 } 3622 else 3623 LangStd = OpenCLLangStd; 3624 } 3625 3626 // These need to be parsed now. They are used to set OpenCL defaults. 3627 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3628 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3629 3630 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3631 3632 // The key paths of codegen options defined in Options.td start with 3633 // "LangOpts->". Let's provide the expected variable name and type. 3634 LangOptions *LangOpts = &Opts; 3635 3636 #define LANG_OPTION_WITH_MARSHALLING( \ 3637 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3638 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3639 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3640 MERGER, EXTRACTOR, TABLE_INDEX) \ 3641 PARSE_OPTION_WITH_MARSHALLING( \ 3642 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3643 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3644 #include "clang/Driver/Options.inc" 3645 #undef LANG_OPTION_WITH_MARSHALLING 3646 3647 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3648 StringRef Name = A->getValue(); 3649 if (Name == "full" || Name == "branch") { 3650 Opts.CFProtectionBranch = 1; 3651 } 3652 } 3653 3654 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3655 !Args.hasArg(OPT_sycl_std_EQ)) { 3656 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3657 // provide -sycl-std=, we want to default it to whatever the default SYCL 3658 // version is. I could not find a way to express this with the options 3659 // tablegen because we still want this value to be SYCL_None when the user 3660 // is not in device or host mode. 3661 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3662 } 3663 3664 if (Opts.ObjC) { 3665 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3666 StringRef value = arg->getValue(); 3667 if (Opts.ObjCRuntime.tryParse(value)) 3668 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3669 } 3670 3671 if (Args.hasArg(OPT_fobjc_gc_only)) 3672 Opts.setGC(LangOptions::GCOnly); 3673 else if (Args.hasArg(OPT_fobjc_gc)) 3674 Opts.setGC(LangOptions::HybridGC); 3675 else if (Args.hasArg(OPT_fobjc_arc)) { 3676 Opts.ObjCAutoRefCount = 1; 3677 if (!Opts.ObjCRuntime.allowsARC()) 3678 Diags.Report(diag::err_arc_unsupported_on_runtime); 3679 } 3680 3681 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3682 // whether the feature is actually enabled. This is predominantly 3683 // determined by -fobjc-runtime, but we allow it to be overridden 3684 // from the command line for testing purposes. 3685 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3686 Opts.ObjCWeakRuntime = 1; 3687 else 3688 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3689 3690 // ObjCWeak determines whether __weak is actually enabled. 3691 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3692 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3693 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3694 assert(!Opts.ObjCWeak); 3695 } else if (Opts.getGC() != LangOptions::NonGC) { 3696 Diags.Report(diag::err_objc_weak_with_gc); 3697 } else if (!Opts.ObjCWeakRuntime) { 3698 Diags.Report(diag::err_objc_weak_unsupported); 3699 } else { 3700 Opts.ObjCWeak = 1; 3701 } 3702 } else if (Opts.ObjCAutoRefCount) { 3703 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3704 } 3705 3706 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3707 Opts.ObjCSubscriptingLegacyRuntime = 3708 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3709 } 3710 3711 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3712 // Check that the version has 1 to 3 components and the minor and patch 3713 // versions fit in two decimal digits. 3714 VersionTuple GNUCVer; 3715 bool Invalid = GNUCVer.tryParse(A->getValue()); 3716 unsigned Major = GNUCVer.getMajor(); 3717 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3718 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3719 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3720 Diags.Report(diag::err_drv_invalid_value) 3721 << A->getAsString(Args) << A->getValue(); 3722 } 3723 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3724 } 3725 3726 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3727 Opts.IgnoreXCOFFVisibility = 1; 3728 3729 if (Args.hasArg(OPT_ftrapv)) { 3730 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3731 // Set the handler, if one is specified. 3732 Opts.OverflowHandler = 3733 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3734 } 3735 else if (Args.hasArg(OPT_fwrapv)) 3736 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3737 3738 Opts.MSCompatibilityVersion = 0; 3739 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3740 VersionTuple VT; 3741 if (VT.tryParse(A->getValue())) 3742 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3743 << A->getValue(); 3744 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3745 VT.getMinor().getValueOr(0) * 100000 + 3746 VT.getSubminor().getValueOr(0); 3747 } 3748 3749 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3750 // is specified, or -std is set to a conforming mode. 3751 // Trigraphs are disabled by default in c++1z onwards. 3752 // For z/OS, trigraphs are enabled by default (without regard to the above). 3753 Opts.Trigraphs = 3754 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3755 Opts.Trigraphs = 3756 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3757 3758 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3759 && Opts.OpenCLVersion == 200); 3760 3761 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3762 Opts.SYCLIsDevice || 3763 Args.hasArg(OPT_fconvergent_functions); 3764 3765 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3766 if (!Opts.NoBuiltin) 3767 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3768 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3769 if (A->getOption().matches(options::OPT_mlong_double_64)) 3770 Opts.LongDoubleSize = 64; 3771 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3772 Opts.LongDoubleSize = 80; 3773 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3774 Opts.LongDoubleSize = 128; 3775 else 3776 Opts.LongDoubleSize = 0; 3777 } 3778 if (Opts.FastRelaxedMath) 3779 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3780 3781 llvm::sort(Opts.ModuleFeatures); 3782 3783 // -mrtd option 3784 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3785 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3786 Diags.Report(diag::err_drv_argument_not_allowed_with) 3787 << A->getSpelling() << "-fdefault-calling-conv"; 3788 else { 3789 if (T.getArch() != llvm::Triple::x86) 3790 Diags.Report(diag::err_drv_argument_not_allowed_with) 3791 << A->getSpelling() << T.getTriple(); 3792 else 3793 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3794 } 3795 } 3796 3797 // Check if -fopenmp is specified and set default version to 5.0. 3798 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3799 // Check if -fopenmp-simd is specified. 3800 bool IsSimdSpecified = 3801 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3802 /*Default=*/false); 3803 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3804 Opts.OpenMPUseTLS = 3805 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3806 Opts.OpenMPIsDevice = 3807 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3808 Opts.OpenMPIRBuilder = 3809 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3810 bool IsTargetSpecified = 3811 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3812 3813 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3814 3815 if (Opts.OpenMP || Opts.OpenMPSimd) { 3816 if (int Version = getLastArgIntValue( 3817 Args, OPT_fopenmp_version_EQ, 3818 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3819 Opts.OpenMP = Version; 3820 // Provide diagnostic when a given target is not expected to be an OpenMP 3821 // device or host. 3822 if (!Opts.OpenMPIsDevice) { 3823 switch (T.getArch()) { 3824 default: 3825 break; 3826 // Add unsupported host targets here: 3827 case llvm::Triple::nvptx: 3828 case llvm::Triple::nvptx64: 3829 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3830 break; 3831 } 3832 } 3833 } 3834 3835 // Set the flag to prevent the implementation from emitting device exception 3836 // handling code for those requiring so. 3837 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3838 Opts.OpenCLCPlusPlus) { 3839 3840 Opts.Exceptions = 0; 3841 Opts.CXXExceptions = 0; 3842 } 3843 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3844 Opts.OpenMPCUDANumSMs = 3845 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3846 Opts.OpenMPCUDANumSMs, Diags); 3847 Opts.OpenMPCUDABlocksPerSM = 3848 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3849 Opts.OpenMPCUDABlocksPerSM, Diags); 3850 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3851 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3852 Opts.OpenMPCUDAReductionBufNum, Diags); 3853 } 3854 3855 // Set the value of the debugging flag used in the new offloading device RTL. 3856 // Set either by a specific value or to a default if not specified. 3857 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3858 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3859 Opts.OpenMPTargetDebug = getLastArgIntValue( 3860 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3861 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3862 Opts.OpenMPTargetDebug = 1; 3863 } 3864 3865 if (Opts.OpenMPIsDevice) { 3866 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3867 Opts.OpenMPTeamSubscription = true; 3868 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3869 Opts.OpenMPThreadSubscription = true; 3870 } 3871 3872 // Get the OpenMP target triples if any. 3873 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3874 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3875 auto getArchPtrSize = [](const llvm::Triple &T) { 3876 if (T.isArch16Bit()) 3877 return Arch16Bit; 3878 if (T.isArch32Bit()) 3879 return Arch32Bit; 3880 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3881 return Arch64Bit; 3882 }; 3883 3884 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3885 llvm::Triple TT(A->getValue(i)); 3886 3887 if (TT.getArch() == llvm::Triple::UnknownArch || 3888 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3889 TT.getArch() == llvm::Triple::nvptx || 3890 TT.getArch() == llvm::Triple::nvptx64 || 3891 TT.getArch() == llvm::Triple::amdgcn || 3892 TT.getArch() == llvm::Triple::x86 || 3893 TT.getArch() == llvm::Triple::x86_64)) 3894 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3895 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3896 Diags.Report(diag::err_drv_incompatible_omp_arch) 3897 << A->getValue(i) << T.str(); 3898 else 3899 Opts.OMPTargetTriples.push_back(TT); 3900 } 3901 } 3902 3903 // Get OpenMP host file path if any and report if a non existent file is 3904 // found 3905 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3906 Opts.OMPHostIRFile = A->getValue(); 3907 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3908 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3909 << Opts.OMPHostIRFile; 3910 } 3911 3912 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3913 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3914 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3915 3916 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3917 Opts.OpenMPCUDAForceFullRuntime = 3918 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3919 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3920 3921 // FIXME: Eliminate this dependency. 3922 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3923 OptSize = getOptimizationLevelSize(Args); 3924 Opts.Optimize = Opt != 0; 3925 Opts.OptimizeSize = OptSize != 0; 3926 3927 // This is the __NO_INLINE__ define, which just depends on things like the 3928 // optimization level and -fno-inline, not actually whether the backend has 3929 // inlining enabled. 3930 Opts.NoInlineDefine = !Opts.Optimize; 3931 if (Arg *InlineArg = Args.getLastArg( 3932 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3933 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3934 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3935 Opts.NoInlineDefine = true; 3936 3937 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3938 StringRef Val = A->getValue(); 3939 if (Val == "fast") 3940 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3941 else if (Val == "on") 3942 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3943 else if (Val == "off") 3944 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3945 else if (Val == "fast-honor-pragmas") 3946 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3947 else 3948 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3949 } 3950 3951 // Parse -fsanitize= arguments. 3952 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3953 Diags, Opts.Sanitize); 3954 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3955 std::vector<std::string> systemIgnorelists = 3956 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3957 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3958 systemIgnorelists.begin(), 3959 systemIgnorelists.end()); 3960 3961 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3962 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3963 3964 StringRef Ver = A->getValue(); 3965 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3966 unsigned Major, Minor = 0; 3967 3968 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3969 // y or y.0 (4 <= y <= current version). 3970 if (!VerParts.first.startswith("0") && 3971 !VerParts.first.getAsInteger(10, Major) && 3972 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3973 (Major == 3 ? VerParts.second.size() == 1 && 3974 !VerParts.second.getAsInteger(10, Minor) 3975 : VerParts.first.size() == Ver.size() || 3976 VerParts.second == "0")) { 3977 // Got a valid version number. 3978 if (Major == 3 && Minor <= 8) 3979 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3980 else if (Major <= 4) 3981 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3982 else if (Major <= 6) 3983 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3984 else if (Major <= 7) 3985 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3986 else if (Major <= 9) 3987 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3988 else if (Major <= 11) 3989 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3990 else if (Major <= 12) 3991 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 3992 else if (Major <= 14) 3993 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 3994 } else if (Ver != "latest") { 3995 Diags.Report(diag::err_drv_invalid_value) 3996 << A->getAsString(Args) << A->getValue(); 3997 } 3998 } 3999 4000 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4001 StringRef SignScope = A->getValue(); 4002 4003 if (SignScope.equals_insensitive("none")) 4004 Opts.setSignReturnAddressScope( 4005 LangOptions::SignReturnAddressScopeKind::None); 4006 else if (SignScope.equals_insensitive("all")) 4007 Opts.setSignReturnAddressScope( 4008 LangOptions::SignReturnAddressScopeKind::All); 4009 else if (SignScope.equals_insensitive("non-leaf")) 4010 Opts.setSignReturnAddressScope( 4011 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4012 else 4013 Diags.Report(diag::err_drv_invalid_value) 4014 << A->getAsString(Args) << SignScope; 4015 4016 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4017 StringRef SignKey = A->getValue(); 4018 if (!SignScope.empty() && !SignKey.empty()) { 4019 if (SignKey.equals_insensitive("a_key")) 4020 Opts.setSignReturnAddressKey( 4021 LangOptions::SignReturnAddressKeyKind::AKey); 4022 else if (SignKey.equals_insensitive("b_key")) 4023 Opts.setSignReturnAddressKey( 4024 LangOptions::SignReturnAddressKeyKind::BKey); 4025 else 4026 Diags.Report(diag::err_drv_invalid_value) 4027 << A->getAsString(Args) << SignKey; 4028 } 4029 } 4030 } 4031 4032 // The value can be empty, which indicates the system default should be used. 4033 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4034 if (!CXXABI.empty()) { 4035 if (!TargetCXXABI::isABI(CXXABI)) { 4036 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4037 } else { 4038 auto Kind = TargetCXXABI::getKind(CXXABI); 4039 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4040 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4041 else 4042 Opts.CXXABI = Kind; 4043 } 4044 } 4045 4046 Opts.RelativeCXXABIVTables = 4047 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4048 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4049 TargetCXXABI::usesRelativeVTables(T)); 4050 4051 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4052 auto Split = StringRef(A).split('='); 4053 Opts.MacroPrefixMap.insert( 4054 {std::string(Split.first), std::string(Split.second)}); 4055 } 4056 4057 Opts.UseTargetPathSeparator = 4058 !Args.getLastArg(OPT_fno_file_reproducible) && 4059 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4060 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4061 Args.getLastArg(OPT_ffile_reproducible)); 4062 4063 // Error if -mvscale-min is unbounded. 4064 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4065 unsigned VScaleMin; 4066 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4067 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4068 } 4069 4070 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4071 std::ifstream SeedFile(A->getValue(0)); 4072 4073 if (!SeedFile.is_open()) 4074 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4075 << A->getValue(0); 4076 4077 std::getline(SeedFile, Opts.RandstructSeed); 4078 } 4079 4080 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4081 Opts.RandstructSeed = A->getValue(0); 4082 4083 return Diags.getNumErrors() == NumErrorsBefore; 4084 } 4085 4086 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4087 switch (Action) { 4088 case frontend::ASTDeclList: 4089 case frontend::ASTDump: 4090 case frontend::ASTPrint: 4091 case frontend::ASTView: 4092 case frontend::EmitAssembly: 4093 case frontend::EmitBC: 4094 case frontend::EmitHTML: 4095 case frontend::EmitLLVM: 4096 case frontend::EmitLLVMOnly: 4097 case frontend::EmitCodeGenOnly: 4098 case frontend::EmitObj: 4099 case frontend::ExtractAPI: 4100 case frontend::FixIt: 4101 case frontend::GenerateModule: 4102 case frontend::GenerateModuleInterface: 4103 case frontend::GenerateHeaderModule: 4104 case frontend::GenerateHeaderUnit: 4105 case frontend::GeneratePCH: 4106 case frontend::GenerateInterfaceStubs: 4107 case frontend::ParseSyntaxOnly: 4108 case frontend::ModuleFileInfo: 4109 case frontend::VerifyPCH: 4110 case frontend::PluginAction: 4111 case frontend::RewriteObjC: 4112 case frontend::RewriteTest: 4113 case frontend::RunAnalysis: 4114 case frontend::TemplightDump: 4115 case frontend::MigrateSource: 4116 return false; 4117 4118 case frontend::DumpCompilerOptions: 4119 case frontend::DumpRawTokens: 4120 case frontend::DumpTokens: 4121 case frontend::InitOnly: 4122 case frontend::PrintPreamble: 4123 case frontend::PrintPreprocessedInput: 4124 case frontend::RewriteMacros: 4125 case frontend::RunPreprocessorOnly: 4126 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4127 return true; 4128 } 4129 llvm_unreachable("invalid frontend action"); 4130 } 4131 4132 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4133 SmallVectorImpl<const char *> &Args, 4134 CompilerInvocation::StringAllocator SA, 4135 const LangOptions &LangOpts, 4136 const FrontendOptions &FrontendOpts, 4137 const CodeGenOptions &CodeGenOpts) { 4138 PreprocessorOptions *PreprocessorOpts = &Opts; 4139 4140 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4141 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4142 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4143 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4144 MERGER, EXTRACTOR, TABLE_INDEX) \ 4145 GENERATE_OPTION_WITH_MARSHALLING( \ 4146 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4147 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4148 #include "clang/Driver/Options.inc" 4149 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4150 4151 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4152 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4153 4154 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4155 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4156 4157 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4158 GenerateArg(Args, OPT_preamble_bytes_EQ, 4159 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4160 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4161 SA); 4162 4163 for (const auto &M : Opts.Macros) { 4164 // Don't generate __CET__ macro definitions. They are implied by the 4165 // -fcf-protection option that is generated elsewhere. 4166 if (M.first == "__CET__=1" && !M.second && 4167 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4168 continue; 4169 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4170 !CodeGenOpts.CFProtectionBranch) 4171 continue; 4172 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4173 CodeGenOpts.CFProtectionBranch) 4174 continue; 4175 4176 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4177 } 4178 4179 for (const auto &I : Opts.Includes) { 4180 // Don't generate OpenCL includes. They are implied by other flags that are 4181 // generated elsewhere. 4182 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4183 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4184 I == "opencl-c.h")) 4185 continue; 4186 // Don't generate HLSL includes. They are implied by other flags that are 4187 // generated elsewhere. 4188 if (LangOpts.HLSL && I == "hlsl.h") 4189 continue; 4190 4191 GenerateArg(Args, OPT_include, I, SA); 4192 } 4193 4194 for (const auto &CI : Opts.ChainedIncludes) 4195 GenerateArg(Args, OPT_chain_include, CI, SA); 4196 4197 for (const auto &RF : Opts.RemappedFiles) 4198 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4199 4200 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4201 // generated elsewhere. 4202 } 4203 4204 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4205 DiagnosticsEngine &Diags, 4206 frontend::ActionKind Action, 4207 const FrontendOptions &FrontendOpts) { 4208 unsigned NumErrorsBefore = Diags.getNumErrors(); 4209 4210 PreprocessorOptions *PreprocessorOpts = &Opts; 4211 4212 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4213 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4214 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4215 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4216 MERGER, EXTRACTOR, TABLE_INDEX) \ 4217 PARSE_OPTION_WITH_MARSHALLING( \ 4218 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4219 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4220 #include "clang/Driver/Options.inc" 4221 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4222 4223 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4224 Args.hasArg(OPT_pch_through_hdrstop_use); 4225 4226 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4227 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4228 4229 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4230 StringRef Value(A->getValue()); 4231 size_t Comma = Value.find(','); 4232 unsigned Bytes = 0; 4233 unsigned EndOfLine = 0; 4234 4235 if (Comma == StringRef::npos || 4236 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4237 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4238 Diags.Report(diag::err_drv_preamble_format); 4239 else { 4240 Opts.PrecompiledPreambleBytes.first = Bytes; 4241 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4242 } 4243 } 4244 4245 // Add the __CET__ macro if a CFProtection option is set. 4246 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4247 StringRef Name = A->getValue(); 4248 if (Name == "branch") 4249 Opts.addMacroDef("__CET__=1"); 4250 else if (Name == "return") 4251 Opts.addMacroDef("__CET__=2"); 4252 else if (Name == "full") 4253 Opts.addMacroDef("__CET__=3"); 4254 } 4255 4256 // Add macros from the command line. 4257 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4258 if (A->getOption().matches(OPT_D)) 4259 Opts.addMacroDef(A->getValue()); 4260 else 4261 Opts.addMacroUndef(A->getValue()); 4262 } 4263 4264 // Add the ordered list of -includes. 4265 for (const auto *A : Args.filtered(OPT_include)) 4266 Opts.Includes.emplace_back(A->getValue()); 4267 4268 for (const auto *A : Args.filtered(OPT_chain_include)) 4269 Opts.ChainedIncludes.emplace_back(A->getValue()); 4270 4271 for (const auto *A : Args.filtered(OPT_remap_file)) { 4272 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4273 4274 if (Split.second.empty()) { 4275 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4276 continue; 4277 } 4278 4279 Opts.addRemappedFile(Split.first, Split.second); 4280 } 4281 4282 // Always avoid lexing editor placeholders when we're just running the 4283 // preprocessor as we never want to emit the 4284 // "editor placeholder in source file" error in PP only mode. 4285 if (isStrictlyPreprocessorAction(Action)) 4286 Opts.LexEditorPlaceholders = false; 4287 4288 return Diags.getNumErrors() == NumErrorsBefore; 4289 } 4290 4291 static void GeneratePreprocessorOutputArgs( 4292 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4293 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4294 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4295 4296 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4297 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4298 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4299 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4300 MERGER, EXTRACTOR, TABLE_INDEX) \ 4301 GENERATE_OPTION_WITH_MARSHALLING( \ 4302 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4303 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4304 #include "clang/Driver/Options.inc" 4305 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4306 4307 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4308 if (Generate_dM) 4309 GenerateArg(Args, OPT_dM, SA); 4310 if (!Generate_dM && Opts.ShowMacros) 4311 GenerateArg(Args, OPT_dD, SA); 4312 if (Opts.DirectivesOnly) 4313 GenerateArg(Args, OPT_fdirectives_only, SA); 4314 } 4315 4316 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4317 ArgList &Args, DiagnosticsEngine &Diags, 4318 frontend::ActionKind Action) { 4319 unsigned NumErrorsBefore = Diags.getNumErrors(); 4320 4321 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4322 4323 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4324 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4325 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4326 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4327 MERGER, EXTRACTOR, TABLE_INDEX) \ 4328 PARSE_OPTION_WITH_MARSHALLING( \ 4329 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4330 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4331 #include "clang/Driver/Options.inc" 4332 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4333 4334 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4335 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4336 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4337 4338 return Diags.getNumErrors() == NumErrorsBefore; 4339 } 4340 4341 static void GenerateTargetArgs(const TargetOptions &Opts, 4342 SmallVectorImpl<const char *> &Args, 4343 CompilerInvocation::StringAllocator SA) { 4344 const TargetOptions *TargetOpts = &Opts; 4345 #define TARGET_OPTION_WITH_MARSHALLING( \ 4346 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4347 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4348 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4349 MERGER, EXTRACTOR, TABLE_INDEX) \ 4350 GENERATE_OPTION_WITH_MARSHALLING( \ 4351 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4352 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4353 #include "clang/Driver/Options.inc" 4354 #undef TARGET_OPTION_WITH_MARSHALLING 4355 4356 if (!Opts.SDKVersion.empty()) 4357 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4358 SA); 4359 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4360 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4361 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4362 } 4363 4364 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4365 DiagnosticsEngine &Diags) { 4366 unsigned NumErrorsBefore = Diags.getNumErrors(); 4367 4368 TargetOptions *TargetOpts = &Opts; 4369 4370 #define TARGET_OPTION_WITH_MARSHALLING( \ 4371 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4372 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4373 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4374 MERGER, EXTRACTOR, TABLE_INDEX) \ 4375 PARSE_OPTION_WITH_MARSHALLING( \ 4376 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4377 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4378 #include "clang/Driver/Options.inc" 4379 #undef TARGET_OPTION_WITH_MARSHALLING 4380 4381 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4382 llvm::VersionTuple Version; 4383 if (Version.tryParse(A->getValue())) 4384 Diags.Report(diag::err_drv_invalid_value) 4385 << A->getAsString(Args) << A->getValue(); 4386 else 4387 Opts.SDKVersion = Version; 4388 } 4389 if (Arg *A = 4390 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4391 llvm::VersionTuple Version; 4392 if (Version.tryParse(A->getValue())) 4393 Diags.Report(diag::err_drv_invalid_value) 4394 << A->getAsString(Args) << A->getValue(); 4395 else 4396 Opts.DarwinTargetVariantSDKVersion = Version; 4397 } 4398 4399 return Diags.getNumErrors() == NumErrorsBefore; 4400 } 4401 4402 bool CompilerInvocation::CreateFromArgsImpl( 4403 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4404 DiagnosticsEngine &Diags, const char *Argv0) { 4405 unsigned NumErrorsBefore = Diags.getNumErrors(); 4406 4407 // Parse the arguments. 4408 const OptTable &Opts = getDriverOptTable(); 4409 const unsigned IncludedFlagsBitmask = options::CC1Option; 4410 unsigned MissingArgIndex, MissingArgCount; 4411 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4412 MissingArgCount, IncludedFlagsBitmask); 4413 LangOptions &LangOpts = *Res.getLangOpts(); 4414 4415 // Check for missing argument error. 4416 if (MissingArgCount) 4417 Diags.Report(diag::err_drv_missing_argument) 4418 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4419 4420 // Issue errors on unknown arguments. 4421 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4422 auto ArgString = A->getAsString(Args); 4423 std::string Nearest; 4424 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4425 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4426 else 4427 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4428 << ArgString << Nearest; 4429 } 4430 4431 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4432 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4433 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4434 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4435 /*DefaultDiagColor=*/false); 4436 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4437 // FIXME: We shouldn't have to pass the DashX option around here 4438 InputKind DashX = Res.getFrontendOpts().DashX; 4439 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4440 llvm::Triple T(Res.getTargetOpts().Triple); 4441 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4442 Res.getFileSystemOpts().WorkingDir); 4443 4444 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4445 Diags); 4446 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4447 LangOpts.ObjCExceptions = 1; 4448 4449 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4450 if (Warning == "misexpect" && 4451 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4452 Res.getCodeGenOpts().MisExpect = true; 4453 } 4454 } 4455 4456 if (LangOpts.CUDA) { 4457 // During CUDA device-side compilation, the aux triple is the 4458 // triple used for host compilation. 4459 if (LangOpts.CUDAIsDevice) 4460 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4461 } 4462 4463 // Set the triple of the host for OpenMP device compile. 4464 if (LangOpts.OpenMPIsDevice) 4465 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4466 4467 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4468 Res.getFrontendOpts().OutputFile, LangOpts); 4469 4470 // FIXME: Override value name discarding when asan or msan is used because the 4471 // backend passes depend on the name of the alloca in order to print out 4472 // names. 4473 Res.getCodeGenOpts().DiscardValueNames &= 4474 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4475 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4476 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4477 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4478 4479 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4480 Res.getFrontendOpts().ProgramAction, 4481 Res.getFrontendOpts()); 4482 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4483 Res.getFrontendOpts().ProgramAction); 4484 4485 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4486 Res.getFrontendOpts().ProgramAction, 4487 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4488 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4489 Res.getDependencyOutputOpts().Targets.empty()) 4490 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4491 4492 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4493 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4494 !Res.getLangOpts()->Sanitize.empty()) { 4495 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4496 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4497 } 4498 4499 // Store the command-line for using in the CodeView backend. 4500 Res.getCodeGenOpts().Argv0 = Argv0; 4501 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4502 4503 FixupInvocation(Res, Diags, Args, DashX); 4504 4505 return Diags.getNumErrors() == NumErrorsBefore; 4506 } 4507 4508 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4509 ArrayRef<const char *> CommandLineArgs, 4510 DiagnosticsEngine &Diags, 4511 const char *Argv0) { 4512 CompilerInvocation DummyInvocation; 4513 4514 return RoundTrip( 4515 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4516 DiagnosticsEngine &Diags, const char *Argv0) { 4517 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4518 }, 4519 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4520 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4521 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4522 } 4523 4524 std::string CompilerInvocation::getModuleHash() const { 4525 // FIXME: Consider using SHA1 instead of MD5. 4526 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4527 4528 // Note: For QoI reasons, the things we use as a hash here should all be 4529 // dumped via the -module-info flag. 4530 4531 // Start the signature with the compiler version. 4532 HBuilder.add(getClangFullRepositoryVersion()); 4533 4534 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4535 // and getClangFullRepositoryVersion() doesn't include git revision. 4536 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4537 4538 // Extend the signature with the language options 4539 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4540 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4541 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4542 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4543 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4544 #include "clang/Basic/LangOptions.def" 4545 4546 HBuilder.addRange(LangOpts->ModuleFeatures); 4547 4548 HBuilder.add(LangOpts->ObjCRuntime); 4549 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4550 4551 // Extend the signature with the target options. 4552 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4553 TargetOpts->ABI); 4554 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4555 4556 // Extend the signature with preprocessor options. 4557 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4558 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4559 4560 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4561 for (const auto &Macro : getPreprocessorOpts().Macros) { 4562 // If we're supposed to ignore this macro for the purposes of modules, 4563 // don't put it into the hash. 4564 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4565 // Check whether we're ignoring this macro. 4566 StringRef MacroDef = Macro.first; 4567 if (hsOpts.ModulesIgnoreMacros.count( 4568 llvm::CachedHashString(MacroDef.split('=').first))) 4569 continue; 4570 } 4571 4572 HBuilder.add(Macro); 4573 } 4574 4575 // Extend the signature with the sysroot and other header search options. 4576 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4577 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4578 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4579 hsOpts.ModulesValidateDiagnosticOptions); 4580 HBuilder.add(hsOpts.ResourceDir); 4581 4582 if (hsOpts.ModulesStrictContextHash) { 4583 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4584 HBuilder.addRange(hsOpts.UserEntries); 4585 4586 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4587 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4588 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4589 HBuilder.add(diagOpts.get##Name()); 4590 #include "clang/Basic/DiagnosticOptions.def" 4591 #undef DIAGOPT 4592 #undef ENUM_DIAGOPT 4593 } 4594 4595 // Extend the signature with the user build path. 4596 HBuilder.add(hsOpts.ModuleUserBuildPath); 4597 4598 // Extend the signature with the module file extensions. 4599 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4600 ext->hashExtension(HBuilder); 4601 4602 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4603 // affects the debug info in the PCM. 4604 if (getCodeGenOpts().DebugTypeExtRefs) 4605 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4606 4607 // Extend the signature with the enabled sanitizers, if at least one is 4608 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4609 SanitizerSet SanHash = LangOpts->Sanitize; 4610 SanHash.clear(getPPTransparentSanitizers()); 4611 if (!SanHash.empty()) 4612 HBuilder.add(SanHash.Mask); 4613 4614 llvm::MD5::MD5Result Result; 4615 HBuilder.getHasher().final(Result); 4616 uint64_t Hash = Result.high() ^ Result.low(); 4617 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4618 } 4619 4620 void CompilerInvocation::generateCC1CommandLine( 4621 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4622 llvm::Triple T(TargetOpts->Triple); 4623 4624 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4625 GenerateMigratorArgs(MigratorOpts, Args, SA); 4626 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4627 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4628 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4629 GenerateTargetArgs(*TargetOpts, Args, SA); 4630 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4631 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4632 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4633 &*LangOpts); 4634 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4635 CodeGenOpts); 4636 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4637 FrontendOpts.ProgramAction); 4638 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4639 } 4640 4641 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4642 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4643 DiagnosticsEngine &Diags) { 4644 return createVFSFromCompilerInvocation(CI, Diags, 4645 llvm::vfs::getRealFileSystem()); 4646 } 4647 4648 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4649 clang::createVFSFromCompilerInvocation( 4650 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4651 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4652 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4653 return BaseFS; 4654 4655 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4656 // earlier vfs files are on the bottom 4657 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4658 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4659 Result->getBufferForFile(File); 4660 if (!Buffer) { 4661 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4662 continue; 4663 } 4664 4665 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4666 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4667 /*DiagContext*/ nullptr, Result); 4668 if (!FS) { 4669 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4670 continue; 4671 } 4672 4673 Result = FS; 4674 } 4675 return Result; 4676 } 4677