1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <fstream> 98 #include <memory> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 inline Expected<Optional<uint64_t>> parseToleranceOption(StringRef Arg) { 117 int64_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase() 129 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 130 DiagnosticOpts(new DiagnosticOptions()), 131 HeaderSearchOpts(new HeaderSearchOptions()), 132 PreprocessorOpts(new PreprocessorOptions()), 133 AnalyzerOpts(new AnalyzerOptions()) {} 134 135 CompilerInvocationRefBase::CompilerInvocationRefBase( 136 const CompilerInvocationRefBase &X) 137 : LangOpts(new LangOptions(*X.getLangOpts())), 138 TargetOpts(new TargetOptions(X.getTargetOpts())), 139 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 140 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 141 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 142 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 143 144 CompilerInvocationRefBase::CompilerInvocationRefBase( 145 CompilerInvocationRefBase &&X) = default; 146 147 CompilerInvocationRefBase & 148 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 149 LangOpts.swap(X.LangOpts); 150 TargetOpts.swap(X.TargetOpts); 151 DiagnosticOpts.swap(X.DiagnosticOpts); 152 HeaderSearchOpts.swap(X.HeaderSearchOpts); 153 PreprocessorOpts.swap(X.PreprocessorOpts); 154 AnalyzerOpts.swap(X.AnalyzerOpts); 155 return *this; 156 } 157 158 CompilerInvocationRefBase & 159 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 160 161 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 162 163 //===----------------------------------------------------------------------===// 164 // Normalizers 165 //===----------------------------------------------------------------------===// 166 167 #define SIMPLE_ENUM_VALUE_TABLE 168 #include "clang/Driver/Options.inc" 169 #undef SIMPLE_ENUM_VALUE_TABLE 170 171 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 172 unsigned TableIndex, 173 const ArgList &Args, 174 DiagnosticsEngine &Diags) { 175 if (Args.hasArg(Opt)) 176 return true; 177 return None; 178 } 179 180 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 181 const ArgList &Args, 182 DiagnosticsEngine &) { 183 if (Args.hasArg(Opt)) 184 return false; 185 return None; 186 } 187 188 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 189 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 190 /// unnecessary template instantiations and just ignore it with a variadic 191 /// argument. 192 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 193 const char *Spelling, 194 CompilerInvocation::StringAllocator, 195 Option::OptionClass, unsigned, /*T*/...) { 196 Args.push_back(Spelling); 197 } 198 199 template <typename T> static constexpr bool is_uint64_t_convertible() { 200 return !std::is_same<T, uint64_t>::value && 201 llvm::is_integral_or_enum<T>::value; 202 } 203 204 template <typename T, 205 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 206 static auto makeFlagToValueNormalizer(T Value) { 207 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 208 DiagnosticsEngine &) -> Optional<T> { 209 if (Args.hasArg(Opt)) 210 return Value; 211 return None; 212 }; 213 } 214 215 template <typename T, 216 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 217 static auto makeFlagToValueNormalizer(T Value) { 218 return makeFlagToValueNormalizer(uint64_t(Value)); 219 } 220 221 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 222 OptSpecifier OtherOpt) { 223 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 224 const ArgList &Args, 225 DiagnosticsEngine &) -> Optional<bool> { 226 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 227 return A->getOption().matches(Opt) ? Value : OtherValue; 228 } 229 return None; 230 }; 231 } 232 233 static auto makeBooleanOptionDenormalizer(bool Value) { 234 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 235 CompilerInvocation::StringAllocator, Option::OptionClass, 236 unsigned, bool KeyPath) { 237 if (KeyPath == Value) 238 Args.push_back(Spelling); 239 }; 240 } 241 242 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 243 const char *Spelling, 244 CompilerInvocation::StringAllocator SA, 245 Option::OptionClass OptClass, unsigned, 246 const Twine &Value) { 247 switch (OptClass) { 248 case Option::SeparateClass: 249 case Option::JoinedOrSeparateClass: 250 case Option::JoinedAndSeparateClass: 251 Args.push_back(Spelling); 252 Args.push_back(SA(Value)); 253 break; 254 case Option::JoinedClass: 255 case Option::CommaJoinedClass: 256 Args.push_back(SA(Twine(Spelling) + Value)); 257 break; 258 default: 259 llvm_unreachable("Cannot denormalize an option with option class " 260 "incompatible with string denormalization."); 261 } 262 } 263 264 template <typename T> 265 static void 266 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 267 CompilerInvocation::StringAllocator SA, 268 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 269 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 270 } 271 272 static Optional<SimpleEnumValue> 273 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 274 for (int I = 0, E = Table.Size; I != E; ++I) 275 if (Name == Table.Table[I].Name) 276 return Table.Table[I]; 277 278 return None; 279 } 280 281 static Optional<SimpleEnumValue> 282 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 283 for (int I = 0, E = Table.Size; I != E; ++I) 284 if (Value == Table.Table[I].Value) 285 return Table.Table[I]; 286 287 return None; 288 } 289 290 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 291 unsigned TableIndex, 292 const ArgList &Args, 293 DiagnosticsEngine &Diags) { 294 assert(TableIndex < SimpleEnumValueTablesSize); 295 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 296 297 auto *Arg = Args.getLastArg(Opt); 298 if (!Arg) 299 return None; 300 301 StringRef ArgValue = Arg->getValue(); 302 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 303 return MaybeEnumVal->Value; 304 305 Diags.Report(diag::err_drv_invalid_value) 306 << Arg->getAsString(Args) << ArgValue; 307 return None; 308 } 309 310 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 311 const char *Spelling, 312 CompilerInvocation::StringAllocator SA, 313 Option::OptionClass OptClass, 314 unsigned TableIndex, unsigned Value) { 315 assert(TableIndex < SimpleEnumValueTablesSize); 316 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 317 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 318 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 319 MaybeEnumVal->Name); 320 } else { 321 llvm_unreachable("The simple enum value was not correctly defined in " 322 "the tablegen option description"); 323 } 324 } 325 326 template <typename T> 327 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 328 const char *Spelling, 329 CompilerInvocation::StringAllocator SA, 330 Option::OptionClass OptClass, 331 unsigned TableIndex, T Value) { 332 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 333 static_cast<unsigned>(Value)); 334 } 335 336 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 337 const ArgList &Args, 338 DiagnosticsEngine &Diags) { 339 auto *Arg = Args.getLastArg(Opt); 340 if (!Arg) 341 return None; 342 return std::string(Arg->getValue()); 343 } 344 345 template <typename IntTy> 346 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 347 const ArgList &Args, 348 DiagnosticsEngine &Diags) { 349 auto *Arg = Args.getLastArg(Opt); 350 if (!Arg) 351 return None; 352 IntTy Res; 353 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 354 Diags.Report(diag::err_drv_invalid_int_value) 355 << Arg->getAsString(Args) << Arg->getValue(); 356 return None; 357 } 358 return Res; 359 } 360 361 static Optional<std::vector<std::string>> 362 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 363 DiagnosticsEngine &) { 364 return Args.getAllArgValues(Opt); 365 } 366 367 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 368 const char *Spelling, 369 CompilerInvocation::StringAllocator SA, 370 Option::OptionClass OptClass, 371 unsigned TableIndex, 372 const std::vector<std::string> &Values) { 373 switch (OptClass) { 374 case Option::CommaJoinedClass: { 375 std::string CommaJoinedValue; 376 if (!Values.empty()) { 377 CommaJoinedValue.append(Values.front()); 378 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 379 CommaJoinedValue.append(","); 380 CommaJoinedValue.append(Value); 381 } 382 } 383 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 384 TableIndex, CommaJoinedValue); 385 break; 386 } 387 case Option::JoinedClass: 388 case Option::SeparateClass: 389 case Option::JoinedOrSeparateClass: 390 for (const std::string &Value : Values) 391 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 392 break; 393 default: 394 llvm_unreachable("Cannot denormalize an option with option class " 395 "incompatible with string vector denormalization."); 396 } 397 } 398 399 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 400 const ArgList &Args, 401 DiagnosticsEngine &Diags) { 402 auto *Arg = Args.getLastArg(Opt); 403 if (!Arg) 404 return None; 405 return llvm::Triple::normalize(Arg->getValue()); 406 } 407 408 template <typename T, typename U> 409 static T mergeForwardValue(T KeyPath, U Value) { 410 return static_cast<T>(Value); 411 } 412 413 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 414 return KeyPath | Value; 415 } 416 417 template <typename T> static T extractForwardValue(T KeyPath) { 418 return KeyPath; 419 } 420 421 template <typename T, typename U, U Value> 422 static T extractMaskValue(T KeyPath) { 423 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 424 } 425 426 #define PARSE_OPTION_WITH_MARSHALLING( \ 427 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 428 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 429 if ((FLAGS)&options::CC1Option) { \ 430 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 431 if (IMPLIED_CHECK) \ 432 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 433 if (SHOULD_PARSE) \ 434 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 435 KEYPATH = \ 436 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 437 } 438 439 // Capture the extracted value as a lambda argument to avoid potential issues 440 // with lifetime extension of the reference. 441 #define GENERATE_OPTION_WITH_MARSHALLING( \ 442 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 443 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 444 TABLE_INDEX) \ 445 if ((FLAGS)&options::CC1Option) { \ 446 [&](const auto &Extracted) { \ 447 if (ALWAYS_EMIT || \ 448 (Extracted != \ 449 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 450 : (DEFAULT_VALUE)))) \ 451 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 452 TABLE_INDEX, Extracted); \ 453 }(EXTRACTOR(KEYPATH)); \ 454 } 455 456 static StringRef GetInputKindName(InputKind IK); 457 458 static bool FixupInvocation(CompilerInvocation &Invocation, 459 DiagnosticsEngine &Diags, const ArgList &Args, 460 InputKind IK) { 461 unsigned NumErrorsBefore = Diags.getNumErrors(); 462 463 LangOptions &LangOpts = *Invocation.getLangOpts(); 464 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 465 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 466 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 467 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 468 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 469 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 470 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 471 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 472 if (FrontendOpts.ShowStats) 473 CodeGenOpts.ClearASTBeforeBackend = false; 474 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 475 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 476 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 477 LangOpts.CurrentModule = LangOpts.ModuleName; 478 479 llvm::Triple T(TargetOpts.Triple); 480 llvm::Triple::ArchType Arch = T.getArch(); 481 482 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 483 484 if (LangOpts.getExceptionHandling() != 485 LangOptions::ExceptionHandlingKind::None && 486 T.isWindowsMSVCEnvironment()) 487 Diags.Report(diag::err_fe_invalid_exception_model) 488 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 489 490 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 491 Diags.Report(diag::warn_c_kext); 492 493 if (Args.hasArg(OPT_fconcepts_ts)) 494 Diags.Report(diag::warn_fe_concepts_ts_flag); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 514 Diags.Report(diag::warn_ignored_hip_only_option) 515 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 516 517 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 520 521 // When these options are used, the compiler is allowed to apply 522 // optimizations that may affect the final result. For example 523 // (x+y)+z is transformed to x+(y+z) but may not give the same 524 // final result; it's not value safe. 525 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 526 // or NaN. Final result may then differ. An error is issued when the eval 527 // method is set with one of these options. 528 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 529 if (LangOpts.ApproxFunc) 530 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 531 if (LangOpts.AllowFPReassoc) 532 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 533 if (LangOpts.AllowRecip) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 535 } 536 537 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 538 // This option should be deprecated for CL > 1.0 because 539 // this option was added for compatibility with OpenCL 1.0. 540 if (Args.getLastArg(OPT_cl_strict_aliasing) && 541 (LangOpts.getOpenCLCompatibleVersion() > 100)) 542 Diags.Report(diag::warn_option_invalid_ocl_version) 543 << LangOpts.getOpenCLVersionString() 544 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 545 546 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 547 auto DefaultCC = LangOpts.getDefaultCallingConv(); 548 549 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 550 DefaultCC == LangOptions::DCC_StdCall) && 551 Arch != llvm::Triple::x86; 552 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 553 DefaultCC == LangOptions::DCC_RegCall) && 554 !T.isX86(); 555 if (emitError) 556 Diags.Report(diag::err_drv_argument_not_allowed_with) 557 << A->getSpelling() << T.getTriple(); 558 } 559 560 return Diags.getNumErrors() == NumErrorsBefore; 561 } 562 563 //===----------------------------------------------------------------------===// 564 // Deserialization (from args) 565 //===----------------------------------------------------------------------===// 566 567 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 568 DiagnosticsEngine &Diags) { 569 unsigned DefaultOpt = llvm::CodeGenOpt::None; 570 if ((IK.getLanguage() == Language::OpenCL || 571 IK.getLanguage() == Language::OpenCLCXX) && 572 !Args.hasArg(OPT_cl_opt_disable)) 573 DefaultOpt = llvm::CodeGenOpt::Default; 574 575 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 576 if (A->getOption().matches(options::OPT_O0)) 577 return llvm::CodeGenOpt::None; 578 579 if (A->getOption().matches(options::OPT_Ofast)) 580 return llvm::CodeGenOpt::Aggressive; 581 582 assert(A->getOption().matches(options::OPT_O)); 583 584 StringRef S(A->getValue()); 585 if (S == "s" || S == "z") 586 return llvm::CodeGenOpt::Default; 587 588 if (S == "g") 589 return llvm::CodeGenOpt::Less; 590 591 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 592 } 593 594 return DefaultOpt; 595 } 596 597 static unsigned getOptimizationLevelSize(ArgList &Args) { 598 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 599 if (A->getOption().matches(options::OPT_O)) { 600 switch (A->getValue()[0]) { 601 default: 602 return 0; 603 case 's': 604 return 1; 605 case 'z': 606 return 2; 607 } 608 } 609 } 610 return 0; 611 } 612 613 static void GenerateArg(SmallVectorImpl<const char *> &Args, 614 llvm::opt::OptSpecifier OptSpecifier, 615 CompilerInvocation::StringAllocator SA) { 616 Option Opt = getDriverOptTable().getOption(OptSpecifier); 617 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 618 Option::OptionClass::FlagClass, 0); 619 } 620 621 static void GenerateArg(SmallVectorImpl<const char *> &Args, 622 llvm::opt::OptSpecifier OptSpecifier, 623 const Twine &Value, 624 CompilerInvocation::StringAllocator SA) { 625 Option Opt = getDriverOptTable().getOption(OptSpecifier); 626 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 627 Opt.getKind(), 0, Value); 628 } 629 630 // Parse command line arguments into CompilerInvocation. 631 using ParseFn = 632 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 633 DiagnosticsEngine &, const char *)>; 634 635 // Generate command line arguments from CompilerInvocation. 636 using GenerateFn = llvm::function_ref<void( 637 CompilerInvocation &, SmallVectorImpl<const char *> &, 638 CompilerInvocation::StringAllocator)>; 639 640 // May perform round-trip of command line arguments. By default, the round-trip 641 // is enabled in assert builds. This can be overwritten at run-time via the 642 // "-round-trip-args" and "-no-round-trip-args" command line flags. 643 // During round-trip, the command line arguments are parsed into a dummy 644 // instance of CompilerInvocation which is used to generate the command line 645 // arguments again. The real CompilerInvocation instance is then created by 646 // parsing the generated arguments, not the original ones. 647 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 648 CompilerInvocation &RealInvocation, 649 CompilerInvocation &DummyInvocation, 650 ArrayRef<const char *> CommandLineArgs, 651 DiagnosticsEngine &Diags, const char *Argv0) { 652 #ifndef NDEBUG 653 bool DoRoundTripDefault = true; 654 #else 655 bool DoRoundTripDefault = false; 656 #endif 657 658 bool DoRoundTrip = DoRoundTripDefault; 659 for (const auto *Arg : CommandLineArgs) { 660 if (Arg == StringRef("-round-trip-args")) 661 DoRoundTrip = true; 662 if (Arg == StringRef("-no-round-trip-args")) 663 DoRoundTrip = false; 664 } 665 666 // If round-trip was not requested, simply run the parser with the real 667 // invocation diagnostics. 668 if (!DoRoundTrip) 669 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 670 671 // Serializes quoted (and potentially escaped) arguments. 672 auto SerializeArgs = [](ArrayRef<const char *> Args) { 673 std::string Buffer; 674 llvm::raw_string_ostream OS(Buffer); 675 for (const char *Arg : Args) { 676 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 677 OS << ' '; 678 } 679 OS.flush(); 680 return Buffer; 681 }; 682 683 // Setup a dummy DiagnosticsEngine. 684 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 685 DummyDiags.setClient(new TextDiagnosticBuffer()); 686 687 // Run the first parse on the original arguments with the dummy invocation and 688 // diagnostics. 689 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 690 DummyDiags.getNumWarnings() != 0) { 691 // If the first parse did not succeed, it must be user mistake (invalid 692 // command line arguments). We won't be able to generate arguments that 693 // would reproduce the same result. Let's fail again with the real 694 // invocation and diagnostics, so all side-effects of parsing are visible. 695 unsigned NumWarningsBefore = Diags.getNumWarnings(); 696 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 697 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 698 return Success; 699 700 // Parse with original options and diagnostics succeeded even though it 701 // shouldn't have. Something is off. 702 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 703 Diags.Report(diag::note_cc1_round_trip_original) 704 << SerializeArgs(CommandLineArgs); 705 return false; 706 } 707 708 // Setup string allocator. 709 llvm::BumpPtrAllocator Alloc; 710 llvm::StringSaver StringPool(Alloc); 711 auto SA = [&StringPool](const Twine &Arg) { 712 return StringPool.save(Arg).data(); 713 }; 714 715 // Generate arguments from the dummy invocation. If Generate is the 716 // inverse of Parse, the newly generated arguments must have the same 717 // semantics as the original. 718 SmallVector<const char *> GeneratedArgs1; 719 Generate(DummyInvocation, GeneratedArgs1, SA); 720 721 // Run the second parse, now on the generated arguments, and with the real 722 // invocation and diagnostics. The result is what we will end up using for the 723 // rest of compilation, so if Generate is not inverse of Parse, something down 724 // the line will break. 725 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 726 727 // The first parse on original arguments succeeded, but second parse of 728 // generated arguments failed. Something must be wrong with the generator. 729 if (!Success2) { 730 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 1 << SerializeArgs(GeneratedArgs1); 733 return false; 734 } 735 736 // Generate arguments again, this time from the options we will end up using 737 // for the rest of the compilation. 738 SmallVector<const char *> GeneratedArgs2; 739 Generate(RealInvocation, GeneratedArgs2, SA); 740 741 // Compares two lists of generated arguments. 742 auto Equal = [](const ArrayRef<const char *> A, 743 const ArrayRef<const char *> B) { 744 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 745 [](const char *AElem, const char *BElem) { 746 return StringRef(AElem) == StringRef(BElem); 747 }); 748 }; 749 750 // If we generated different arguments from what we assume are two 751 // semantically equivalent CompilerInvocations, the Generate function may 752 // be non-deterministic. 753 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 754 Diags.Report(diag::err_cc1_round_trip_mismatch); 755 Diags.Report(diag::note_cc1_round_trip_generated) 756 << 1 << SerializeArgs(GeneratedArgs1); 757 Diags.Report(diag::note_cc1_round_trip_generated) 758 << 2 << SerializeArgs(GeneratedArgs2); 759 return false; 760 } 761 762 Diags.Report(diag::remark_cc1_round_trip_generated) 763 << 1 << SerializeArgs(GeneratedArgs1); 764 Diags.Report(diag::remark_cc1_round_trip_generated) 765 << 2 << SerializeArgs(GeneratedArgs2); 766 767 return Success2; 768 } 769 770 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 771 OptSpecifier GroupWithValue, 772 std::vector<std::string> &Diagnostics) { 773 for (auto *A : Args.filtered(Group)) { 774 if (A->getOption().getKind() == Option::FlagClass) { 775 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 776 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 777 Diagnostics.push_back( 778 std::string(A->getOption().getName().drop_front(1))); 779 } else if (A->getOption().matches(GroupWithValue)) { 780 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 781 // group. Add only the group name to the diagnostics. 782 Diagnostics.push_back( 783 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 784 } else { 785 // Otherwise, add its value (for OPT_W_Joined and similar). 786 Diagnostics.push_back(A->getValue()); 787 } 788 } 789 } 790 791 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 792 // it won't verify the input. 793 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 794 DiagnosticsEngine *Diags); 795 796 static void getAllNoBuiltinFuncValues(ArgList &Args, 797 std::vector<std::string> &Funcs) { 798 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 799 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 800 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 801 } 802 803 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 804 SmallVectorImpl<const char *> &Args, 805 CompilerInvocation::StringAllocator SA) { 806 const AnalyzerOptions *AnalyzerOpts = &Opts; 807 808 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 809 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 810 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 811 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 812 MERGER, EXTRACTOR, TABLE_INDEX) \ 813 GENERATE_OPTION_WITH_MARSHALLING( \ 814 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 815 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 816 #include "clang/Driver/Options.inc" 817 #undef ANALYZER_OPTION_WITH_MARSHALLING 818 819 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 820 switch (Opts.AnalysisConstraintsOpt) { 821 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 822 case NAME##Model: \ 823 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 824 break; 825 #include "clang/StaticAnalyzer/Core/Analyses.def" 826 default: 827 llvm_unreachable("Tried to generate unknown analysis constraint."); 828 } 829 } 830 831 if (Opts.AnalysisDiagOpt != PD_HTML) { 832 switch (Opts.AnalysisDiagOpt) { 833 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 834 case PD_##NAME: \ 835 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 836 break; 837 #include "clang/StaticAnalyzer/Core/Analyses.def" 838 default: 839 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 840 } 841 } 842 843 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 844 switch (Opts.AnalysisPurgeOpt) { 845 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 846 case NAME: \ 847 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 848 break; 849 #include "clang/StaticAnalyzer/Core/Analyses.def" 850 default: 851 llvm_unreachable("Tried to generate unknown analysis purge mode."); 852 } 853 } 854 855 if (Opts.InliningMode != NoRedundancy) { 856 switch (Opts.InliningMode) { 857 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 858 case NAME: \ 859 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 860 break; 861 #include "clang/StaticAnalyzer/Core/Analyses.def" 862 default: 863 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 864 } 865 } 866 867 for (const auto &CP : Opts.CheckersAndPackages) { 868 OptSpecifier Opt = 869 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 870 GenerateArg(Args, Opt, CP.first, SA); 871 } 872 873 AnalyzerOptions ConfigOpts; 874 parseAnalyzerConfigs(ConfigOpts, nullptr); 875 876 for (const auto &C : Opts.Config) { 877 // Don't generate anything that came from parseAnalyzerConfigs. It would be 878 // redundant and may not be valid on the command line. 879 auto Entry = ConfigOpts.Config.find(C.getKey()); 880 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 881 continue; 882 883 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 884 } 885 886 // Nothing to generate for FullCompilerInvocation. 887 } 888 889 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 890 DiagnosticsEngine &Diags) { 891 unsigned NumErrorsBefore = Diags.getNumErrors(); 892 893 AnalyzerOptions *AnalyzerOpts = &Opts; 894 895 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 896 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 897 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 898 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 899 MERGER, EXTRACTOR, TABLE_INDEX) \ 900 PARSE_OPTION_WITH_MARSHALLING( \ 901 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 902 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 903 #include "clang/Driver/Options.inc" 904 #undef ANALYZER_OPTION_WITH_MARSHALLING 905 906 if (Args.hasArg(OPT_analyzer_store)) 907 Diags.Report(diag::warn_analyzer_deprecated_option) << "-analyzer-store" 908 << "clang-16"; 909 if (Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks)) 910 Diags.Report(diag::warn_analyzer_deprecated_option) 911 << "-analyzer-opt-analyze-nested-blocks" 912 << "clang-16"; 913 914 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 915 StringRef Name = A->getValue(); 916 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 917 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 918 .Case(CMDFLAG, NAME##Model) 919 #include "clang/StaticAnalyzer/Core/Analyses.def" 920 .Default(NumConstraints); 921 if (Value == NumConstraints) { 922 Diags.Report(diag::err_drv_invalid_value) 923 << A->getAsString(Args) << Name; 924 } else { 925 #ifndef LLVM_WITH_Z3 926 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 927 Diags.Report(diag::err_analyzer_not_built_with_z3); 928 } 929 #endif // LLVM_WITH_Z3 930 Opts.AnalysisConstraintsOpt = Value; 931 } 932 } 933 934 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 935 StringRef Name = A->getValue(); 936 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 937 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 938 .Case(CMDFLAG, PD_##NAME) 939 #include "clang/StaticAnalyzer/Core/Analyses.def" 940 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 941 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 942 Diags.Report(diag::err_drv_invalid_value) 943 << A->getAsString(Args) << Name; 944 } else { 945 Opts.AnalysisDiagOpt = Value; 946 } 947 } 948 949 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 950 StringRef Name = A->getValue(); 951 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 952 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 953 .Case(CMDFLAG, NAME) 954 #include "clang/StaticAnalyzer/Core/Analyses.def" 955 .Default(NumPurgeModes); 956 if (Value == NumPurgeModes) { 957 Diags.Report(diag::err_drv_invalid_value) 958 << A->getAsString(Args) << Name; 959 } else { 960 Opts.AnalysisPurgeOpt = Value; 961 } 962 } 963 964 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 965 StringRef Name = A->getValue(); 966 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 967 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 968 .Case(CMDFLAG, NAME) 969 #include "clang/StaticAnalyzer/Core/Analyses.def" 970 .Default(NumInliningModes); 971 if (Value == NumInliningModes) { 972 Diags.Report(diag::err_drv_invalid_value) 973 << A->getAsString(Args) << Name; 974 } else { 975 Opts.InliningMode = Value; 976 } 977 } 978 979 Opts.CheckersAndPackages.clear(); 980 for (const Arg *A : 981 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 982 A->claim(); 983 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 984 // We can have a list of comma separated checker names, e.g: 985 // '-analyzer-checker=cocoa,unix' 986 StringRef CheckerAndPackageList = A->getValue(); 987 SmallVector<StringRef, 16> CheckersAndPackages; 988 CheckerAndPackageList.split(CheckersAndPackages, ","); 989 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 990 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 991 IsEnabled); 992 } 993 994 // Go through the analyzer configuration options. 995 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 996 997 // We can have a list of comma separated config names, e.g: 998 // '-analyzer-config key1=val1,key2=val2' 999 StringRef configList = A->getValue(); 1000 SmallVector<StringRef, 4> configVals; 1001 configList.split(configVals, ","); 1002 for (const auto &configVal : configVals) { 1003 StringRef key, val; 1004 std::tie(key, val) = configVal.split("="); 1005 if (val.empty()) { 1006 Diags.Report(SourceLocation(), 1007 diag::err_analyzer_config_no_value) << configVal; 1008 break; 1009 } 1010 if (val.contains('=')) { 1011 Diags.Report(SourceLocation(), 1012 diag::err_analyzer_config_multiple_values) 1013 << configVal; 1014 break; 1015 } 1016 1017 // TODO: Check checker options too, possibly in CheckerRegistry. 1018 // Leave unknown non-checker configs unclaimed. 1019 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1020 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1021 Diags.Report(diag::err_analyzer_config_unknown) << key; 1022 continue; 1023 } 1024 1025 A->claim(); 1026 Opts.Config[key] = std::string(val); 1027 } 1028 } 1029 1030 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1031 parseAnalyzerConfigs(Opts, &Diags); 1032 else 1033 parseAnalyzerConfigs(Opts, nullptr); 1034 1035 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1036 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1037 if (i != 0) 1038 os << " "; 1039 os << Args.getArgString(i); 1040 } 1041 os.flush(); 1042 1043 return Diags.getNumErrors() == NumErrorsBefore; 1044 } 1045 1046 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1047 StringRef OptionName, StringRef DefaultVal) { 1048 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1049 } 1050 1051 static void initOption(AnalyzerOptions::ConfigTable &Config, 1052 DiagnosticsEngine *Diags, 1053 StringRef &OptionField, StringRef Name, 1054 StringRef DefaultVal) { 1055 // String options may be known to invalid (e.g. if the expected string is a 1056 // file name, but the file does not exist), those will have to be checked in 1057 // parseConfigs. 1058 OptionField = getStringOption(Config, Name, DefaultVal); 1059 } 1060 1061 static void initOption(AnalyzerOptions::ConfigTable &Config, 1062 DiagnosticsEngine *Diags, 1063 bool &OptionField, StringRef Name, bool DefaultVal) { 1064 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1065 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1066 .Case("true", true) 1067 .Case("false", false) 1068 .Default(None); 1069 1070 if (!PossiblyInvalidVal) { 1071 if (Diags) 1072 Diags->Report(diag::err_analyzer_config_invalid_input) 1073 << Name << "a boolean"; 1074 else 1075 OptionField = DefaultVal; 1076 } else 1077 OptionField = *PossiblyInvalidVal; 1078 } 1079 1080 static void initOption(AnalyzerOptions::ConfigTable &Config, 1081 DiagnosticsEngine *Diags, 1082 unsigned &OptionField, StringRef Name, 1083 unsigned DefaultVal) { 1084 1085 OptionField = DefaultVal; 1086 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1087 .getAsInteger(0, OptionField); 1088 if (Diags && HasFailed) 1089 Diags->Report(diag::err_analyzer_config_invalid_input) 1090 << Name << "an unsigned"; 1091 } 1092 1093 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1094 DiagnosticsEngine *Diags) { 1095 // TODO: There's no need to store the entire configtable, it'd be plenty 1096 // enough to store checker options. 1097 1098 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1099 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1100 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1101 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1102 1103 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1104 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1105 1106 #define ANALYZER_OPTION(...) 1107 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1108 SHALLOW_VAL, DEEP_VAL) \ 1109 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1110 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1111 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1112 1113 // At this point, AnalyzerOptions is configured. Let's validate some options. 1114 1115 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1116 // The current approach only validates the registered checkers which does not 1117 // contain the runtime enabled checkers and optimally we would validate both. 1118 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1119 std::vector<StringRef> Checkers = 1120 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1121 std::vector<StringRef> Packages = 1122 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1123 1124 SmallVector<StringRef, 16> CheckersAndPackages; 1125 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1126 1127 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1128 if (Diags) { 1129 bool IsChecker = CheckerOrPackage.contains('.'); 1130 bool IsValidName = IsChecker 1131 ? llvm::is_contained(Checkers, CheckerOrPackage) 1132 : llvm::is_contained(Packages, CheckerOrPackage); 1133 1134 if (!IsValidName) 1135 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1136 << CheckerOrPackage; 1137 } 1138 1139 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1140 } 1141 } 1142 1143 if (!Diags) 1144 return; 1145 1146 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1147 Diags->Report(diag::err_analyzer_config_invalid_input) 1148 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1149 1150 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1151 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1152 << "a filename"; 1153 1154 if (!AnOpts.ModelPath.empty() && 1155 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1156 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1157 << "a filename"; 1158 } 1159 1160 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1161 static void 1162 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1163 CompilerInvocation::StringAllocator SA, 1164 OptSpecifier OptEQ, StringRef Name, 1165 const CodeGenOptions::OptRemark &Remark) { 1166 if (Remark.hasValidPattern()) { 1167 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1168 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1169 GenerateArg(Args, OPT_R_Joined, Name, SA); 1170 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1171 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1172 } 1173 } 1174 1175 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1176 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1177 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1178 static CodeGenOptions::OptRemark 1179 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1180 OptSpecifier OptEQ, StringRef Name) { 1181 CodeGenOptions::OptRemark Result; 1182 1183 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1184 StringRef Pattern) { 1185 Result.Pattern = Pattern.str(); 1186 1187 std::string RegexError; 1188 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1189 if (!Result.Regex->isValid(RegexError)) { 1190 Diags.Report(diag::err_drv_optimization_remark_pattern) 1191 << RegexError << A->getAsString(Args); 1192 return false; 1193 } 1194 1195 return true; 1196 }; 1197 1198 for (Arg *A : Args) { 1199 if (A->getOption().matches(OPT_R_Joined)) { 1200 StringRef Value = A->getValue(); 1201 1202 if (Value == Name) 1203 Result.Kind = CodeGenOptions::RK_Enabled; 1204 else if (Value == "everything") 1205 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1206 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1207 Result.Kind = CodeGenOptions::RK_Disabled; 1208 else if (Value == "no-everything") 1209 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1210 else 1211 continue; 1212 1213 if (Result.Kind == CodeGenOptions::RK_Disabled || 1214 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1215 Result.Pattern = ""; 1216 Result.Regex = nullptr; 1217 } else { 1218 InitializeResultPattern(A, ".*"); 1219 } 1220 } else if (A->getOption().matches(OptEQ)) { 1221 Result.Kind = CodeGenOptions::RK_WithPattern; 1222 if (!InitializeResultPattern(A, A->getValue())) 1223 return CodeGenOptions::OptRemark(); 1224 } 1225 } 1226 1227 return Result; 1228 } 1229 1230 static bool parseDiagnosticLevelMask(StringRef FlagName, 1231 const std::vector<std::string> &Levels, 1232 DiagnosticsEngine &Diags, 1233 DiagnosticLevelMask &M) { 1234 bool Success = true; 1235 for (const auto &Level : Levels) { 1236 DiagnosticLevelMask const PM = 1237 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1238 .Case("note", DiagnosticLevelMask::Note) 1239 .Case("remark", DiagnosticLevelMask::Remark) 1240 .Case("warning", DiagnosticLevelMask::Warning) 1241 .Case("error", DiagnosticLevelMask::Error) 1242 .Default(DiagnosticLevelMask::None); 1243 if (PM == DiagnosticLevelMask::None) { 1244 Success = false; 1245 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1246 } 1247 M = M | PM; 1248 } 1249 return Success; 1250 } 1251 1252 static void parseSanitizerKinds(StringRef FlagName, 1253 const std::vector<std::string> &Sanitizers, 1254 DiagnosticsEngine &Diags, SanitizerSet &S) { 1255 for (const auto &Sanitizer : Sanitizers) { 1256 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1257 if (K == SanitizerMask()) 1258 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1259 else 1260 S.set(K, true); 1261 } 1262 } 1263 1264 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1265 SmallVector<StringRef, 4> Values; 1266 serializeSanitizerSet(S, Values); 1267 return Values; 1268 } 1269 1270 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1271 ArgList &Args, DiagnosticsEngine &D, 1272 XRayInstrSet &S) { 1273 llvm::SmallVector<StringRef, 2> BundleParts; 1274 llvm::SplitString(Bundle, BundleParts, ","); 1275 for (const auto &B : BundleParts) { 1276 auto Mask = parseXRayInstrValue(B); 1277 if (Mask == XRayInstrKind::None) 1278 if (B != "none") 1279 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1280 else 1281 S.Mask = Mask; 1282 else if (Mask == XRayInstrKind::All) 1283 S.Mask = Mask; 1284 else 1285 S.set(Mask, true); 1286 } 1287 } 1288 1289 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1290 llvm::SmallVector<StringRef, 2> BundleParts; 1291 serializeXRayInstrValue(S, BundleParts); 1292 std::string Buffer; 1293 llvm::raw_string_ostream OS(Buffer); 1294 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1295 return Buffer; 1296 } 1297 1298 // Set the profile kind using fprofile-instrument-use-path. 1299 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1300 const Twine &ProfileName) { 1301 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1302 // In error, return silently and let Clang PGOUse report the error message. 1303 if (auto E = ReaderOrErr.takeError()) { 1304 llvm::consumeError(std::move(E)); 1305 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1306 return; 1307 } 1308 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1309 std::move(ReaderOrErr.get()); 1310 if (PGOReader->isIRLevelProfile()) { 1311 if (PGOReader->hasCSIRLevelProfile()) 1312 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1313 else 1314 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1315 } else 1316 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1317 } 1318 1319 void CompilerInvocation::GenerateCodeGenArgs( 1320 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1321 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1322 const LangOptions *LangOpts) { 1323 const CodeGenOptions &CodeGenOpts = Opts; 1324 1325 if (Opts.OptimizationLevel == 0) 1326 GenerateArg(Args, OPT_O0, SA); 1327 else 1328 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1329 1330 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1331 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1332 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1333 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1334 MERGER, EXTRACTOR, TABLE_INDEX) \ 1335 GENERATE_OPTION_WITH_MARSHALLING( \ 1336 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1337 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1338 #include "clang/Driver/Options.inc" 1339 #undef CODEGEN_OPTION_WITH_MARSHALLING 1340 1341 if (Opts.OptimizationLevel > 0) { 1342 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1343 GenerateArg(Args, OPT_finline_functions, SA); 1344 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1345 GenerateArg(Args, OPT_finline_hint_functions, SA); 1346 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1347 GenerateArg(Args, OPT_fno_inline, SA); 1348 } 1349 1350 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1351 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1352 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1353 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1354 1355 Optional<StringRef> DebugInfoVal; 1356 switch (Opts.DebugInfo) { 1357 case codegenoptions::DebugLineTablesOnly: 1358 DebugInfoVal = "line-tables-only"; 1359 break; 1360 case codegenoptions::DebugDirectivesOnly: 1361 DebugInfoVal = "line-directives-only"; 1362 break; 1363 case codegenoptions::LimitedDebugInfo: 1364 DebugInfoVal = "limited"; 1365 break; 1366 case codegenoptions::FullDebugInfo: 1367 DebugInfoVal = "standalone"; 1368 break; 1369 case codegenoptions::UnusedTypeInfo: 1370 DebugInfoVal = "unused-types"; 1371 break; 1372 case codegenoptions::NoDebugInfo: // default value 1373 DebugInfoVal = None; 1374 break; 1375 case codegenoptions::LocTrackingOnly: // implied value 1376 DebugInfoVal = None; 1377 break; 1378 } 1379 if (DebugInfoVal) 1380 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1381 1382 for (const auto &Prefix : Opts.DebugPrefixMap) 1383 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1384 Prefix.first + "=" + Prefix.second, SA); 1385 1386 for (const auto &Prefix : Opts.CoveragePrefixMap) 1387 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1388 Prefix.first + "=" + Prefix.second, SA); 1389 1390 if (Opts.NewStructPathTBAA) 1391 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1392 1393 if (Opts.OptimizeSize == 1) 1394 GenerateArg(Args, OPT_O, "s", SA); 1395 else if (Opts.OptimizeSize == 2) 1396 GenerateArg(Args, OPT_O, "z", SA); 1397 1398 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1399 // -ffreestanding. We'll consider that when generating them. 1400 1401 // NoBuiltinFuncs are generated by LangOptions. 1402 1403 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1404 GenerateArg(Args, OPT_funroll_loops, SA); 1405 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1406 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1407 1408 if (!Opts.BinutilsVersion.empty()) 1409 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1410 1411 if (Opts.DebugNameTable == 1412 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1413 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1414 else if (Opts.DebugNameTable == 1415 static_cast<unsigned>( 1416 llvm::DICompileUnit::DebugNameTableKind::Default)) 1417 GenerateArg(Args, OPT_gpubnames, SA); 1418 1419 auto TNK = Opts.getDebugSimpleTemplateNames(); 1420 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1421 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1422 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1423 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1424 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1425 } 1426 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1427 // it or PGOUseInstrumentor. 1428 1429 if (Opts.TimePasses) { 1430 if (Opts.TimePassesPerRun) 1431 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1432 else 1433 GenerateArg(Args, OPT_ftime_report, SA); 1434 } 1435 1436 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1437 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1438 1439 if (Opts.PrepareForThinLTO) 1440 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1441 1442 if (!Opts.ThinLTOIndexFile.empty()) 1443 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1444 1445 if (Opts.SaveTempsFilePrefix == OutputFile) 1446 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1447 1448 StringRef MemProfileBasename("memprof.profraw"); 1449 if (!Opts.MemoryProfileOutput.empty()) { 1450 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1451 GenerateArg(Args, OPT_fmemory_profile, SA); 1452 } else { 1453 size_t ArgLength = 1454 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1455 GenerateArg(Args, OPT_fmemory_profile_EQ, 1456 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1457 } 1458 } 1459 1460 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1461 GenerateArg(Args, OPT_coverage_version_EQ, 1462 StringRef(Opts.CoverageVersion, 4), SA); 1463 1464 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1465 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1466 // won't be generated.) 1467 1468 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1469 std::string InstrBundle = 1470 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1471 if (!InstrBundle.empty()) 1472 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1473 } 1474 1475 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1476 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1477 else if (Opts.CFProtectionReturn) 1478 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1479 else if (Opts.CFProtectionBranch) 1480 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1481 1482 if (Opts.IBTSeal) 1483 GenerateArg(Args, OPT_mibt_seal, SA); 1484 1485 for (const auto &F : Opts.LinkBitcodeFiles) { 1486 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1487 F.PropagateAttrs && F.Internalize; 1488 GenerateArg(Args, 1489 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1490 F.Filename, SA); 1491 } 1492 1493 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1494 // That would make it easy to generate the option only **once** if it was 1495 // explicitly set to non-default value. 1496 if (Opts.ExplicitEmulatedTLS) { 1497 GenerateArg( 1498 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1499 } 1500 1501 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1502 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1503 1504 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1505 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1506 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1507 SA); 1508 1509 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1510 OptSpecifier Opt = 1511 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1512 GenerateArg(Args, Opt, SA); 1513 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1514 OptSpecifier Opt = 1515 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1516 GenerateArg(Args, Opt, SA); 1517 } 1518 1519 if (Opts.EnableAIXExtendedAltivecABI) 1520 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1521 1522 if (!Opts.OptRecordPasses.empty()) 1523 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1524 1525 if (!Opts.OptRecordFormat.empty()) 1526 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1527 1528 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1529 Opts.OptimizationRemark); 1530 1531 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1532 Opts.OptimizationRemarkMissed); 1533 1534 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1535 Opts.OptimizationRemarkAnalysis); 1536 1537 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1538 Opts.DiagnosticsHotnessThreshold 1539 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1540 : "auto", 1541 SA); 1542 1543 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1544 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1545 1546 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1547 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1548 1549 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1550 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1551 1552 if (!Opts.EmitVersionIdentMetadata) 1553 GenerateArg(Args, OPT_Qn, SA); 1554 1555 switch (Opts.FiniteLoops) { 1556 case CodeGenOptions::FiniteLoopsKind::Language: 1557 break; 1558 case CodeGenOptions::FiniteLoopsKind::Always: 1559 GenerateArg(Args, OPT_ffinite_loops, SA); 1560 break; 1561 case CodeGenOptions::FiniteLoopsKind::Never: 1562 GenerateArg(Args, OPT_fno_finite_loops, SA); 1563 break; 1564 } 1565 } 1566 1567 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1568 InputKind IK, 1569 DiagnosticsEngine &Diags, 1570 const llvm::Triple &T, 1571 const std::string &OutputFile, 1572 const LangOptions &LangOptsRef) { 1573 unsigned NumErrorsBefore = Diags.getNumErrors(); 1574 1575 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1576 // TODO: This could be done in Driver 1577 unsigned MaxOptLevel = 3; 1578 if (OptimizationLevel > MaxOptLevel) { 1579 // If the optimization level is not supported, fall back on the default 1580 // optimization 1581 Diags.Report(diag::warn_drv_optimization_value) 1582 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1583 OptimizationLevel = MaxOptLevel; 1584 } 1585 Opts.OptimizationLevel = OptimizationLevel; 1586 1587 // The key paths of codegen options defined in Options.td start with 1588 // "CodeGenOpts.". Let's provide the expected variable name and type. 1589 CodeGenOptions &CodeGenOpts = Opts; 1590 // Some codegen options depend on language options. Let's provide the expected 1591 // variable name and type. 1592 const LangOptions *LangOpts = &LangOptsRef; 1593 1594 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1595 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1596 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1597 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1598 MERGER, EXTRACTOR, TABLE_INDEX) \ 1599 PARSE_OPTION_WITH_MARSHALLING( \ 1600 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1601 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1602 #include "clang/Driver/Options.inc" 1603 #undef CODEGEN_OPTION_WITH_MARSHALLING 1604 1605 // At O0 we want to fully disable inlining outside of cases marked with 1606 // 'alwaysinline' that are required for correctness. 1607 if (Opts.OptimizationLevel == 0) { 1608 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1609 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1610 options::OPT_finline_hint_functions, 1611 options::OPT_fno_inline_functions, 1612 options::OPT_fno_inline)) { 1613 // Explicit inlining flags can disable some or all inlining even at 1614 // optimization levels above zero. 1615 if (A->getOption().matches(options::OPT_finline_functions)) 1616 Opts.setInlining(CodeGenOptions::NormalInlining); 1617 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1618 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1619 else 1620 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1621 } else { 1622 Opts.setInlining(CodeGenOptions::NormalInlining); 1623 } 1624 1625 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1626 // -fdirect-access-external-data. 1627 Opts.DirectAccessExternalData = 1628 Args.hasArg(OPT_fdirect_access_external_data) || 1629 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1630 LangOpts->PICLevel == 0); 1631 1632 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1633 unsigned Val = 1634 llvm::StringSwitch<unsigned>(A->getValue()) 1635 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1636 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1637 .Case("limited", codegenoptions::LimitedDebugInfo) 1638 .Case("standalone", codegenoptions::FullDebugInfo) 1639 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1640 .Default(~0U); 1641 if (Val == ~0U) 1642 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1643 << A->getValue(); 1644 else 1645 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1646 } 1647 1648 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1649 auto Split = StringRef(Arg).split('='); 1650 Opts.DebugPrefixMap.insert( 1651 {std::string(Split.first), std::string(Split.second)}); 1652 } 1653 1654 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1655 auto Split = StringRef(Arg).split('='); 1656 Opts.CoveragePrefixMap.insert( 1657 {std::string(Split.first), std::string(Split.second)}); 1658 } 1659 1660 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1661 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1662 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1663 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1664 1665 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1666 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1667 Opts.EmitCallSiteInfo = true; 1668 1669 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1670 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1671 << Opts.DIBugsReportFilePath; 1672 Opts.DIBugsReportFilePath = ""; 1673 } 1674 1675 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1676 Args.hasArg(OPT_new_struct_path_tbaa); 1677 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1678 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1679 if (Opts.SimplifyLibCalls) 1680 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1681 Opts.UnrollLoops = 1682 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1683 (Opts.OptimizationLevel > 1)); 1684 Opts.BinutilsVersion = 1685 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1686 1687 Opts.DebugNameTable = static_cast<unsigned>( 1688 Args.hasArg(OPT_ggnu_pubnames) 1689 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1690 : Args.hasArg(OPT_gpubnames) 1691 ? llvm::DICompileUnit::DebugNameTableKind::Default 1692 : llvm::DICompileUnit::DebugNameTableKind::None); 1693 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1694 StringRef Value = A->getValue(); 1695 if (Value != "simple" && Value != "mangled") 1696 Diags.Report(diag::err_drv_unsupported_option_argument) 1697 << A->getOption().getName() << A->getValue(); 1698 Opts.setDebugSimpleTemplateNames( 1699 StringRef(A->getValue()) == "simple" 1700 ? codegenoptions::DebugTemplateNamesKind::Simple 1701 : codegenoptions::DebugTemplateNamesKind::Mangled); 1702 } 1703 1704 if (!Opts.ProfileInstrumentUsePath.empty()) 1705 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1706 1707 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1708 Opts.TimePasses = true; 1709 1710 // -ftime-report= is only for new pass manager. 1711 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1712 StringRef Val = A->getValue(); 1713 if (Val == "per-pass") 1714 Opts.TimePassesPerRun = false; 1715 else if (Val == "per-pass-run") 1716 Opts.TimePassesPerRun = true; 1717 else 1718 Diags.Report(diag::err_drv_invalid_value) 1719 << A->getAsString(Args) << A->getValue(); 1720 } 1721 } 1722 1723 Opts.PrepareForLTO = false; 1724 Opts.PrepareForThinLTO = false; 1725 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1726 Opts.PrepareForLTO = true; 1727 StringRef S = A->getValue(); 1728 if (S == "thin") 1729 Opts.PrepareForThinLTO = true; 1730 else if (S != "full") 1731 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1732 } 1733 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1734 if (IK.getLanguage() != Language::LLVM_IR) 1735 Diags.Report(diag::err_drv_argument_only_allowed_with) 1736 << A->getAsString(Args) << "-x ir"; 1737 Opts.ThinLTOIndexFile = 1738 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1739 } 1740 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1741 Opts.SaveTempsFilePrefix = 1742 llvm::StringSwitch<std::string>(A->getValue()) 1743 .Case("obj", OutputFile) 1744 .Default(llvm::sys::path::filename(OutputFile).str()); 1745 1746 // The memory profile runtime appends the pid to make this name more unique. 1747 const char *MemProfileBasename = "memprof.profraw"; 1748 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1749 SmallString<128> Path( 1750 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1751 llvm::sys::path::append(Path, MemProfileBasename); 1752 Opts.MemoryProfileOutput = std::string(Path); 1753 } else if (Args.hasArg(OPT_fmemory_profile)) 1754 Opts.MemoryProfileOutput = MemProfileBasename; 1755 1756 memcpy(Opts.CoverageVersion, "408*", 4); 1757 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1758 if (Args.hasArg(OPT_coverage_version_EQ)) { 1759 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1760 if (CoverageVersion.size() != 4) { 1761 Diags.Report(diag::err_drv_invalid_value) 1762 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1763 << CoverageVersion; 1764 } else { 1765 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1766 } 1767 } 1768 } 1769 // FIXME: For backend options that are not yet recorded as function 1770 // attributes in the IR, keep track of them so we can embed them in a 1771 // separate data section and use them when building the bitcode. 1772 for (const auto &A : Args) { 1773 // Do not encode output and input. 1774 if (A->getOption().getID() == options::OPT_o || 1775 A->getOption().getID() == options::OPT_INPUT || 1776 A->getOption().getID() == options::OPT_x || 1777 A->getOption().getID() == options::OPT_fembed_bitcode || 1778 A->getOption().matches(options::OPT_W_Group)) 1779 continue; 1780 ArgStringList ASL; 1781 A->render(Args, ASL); 1782 for (const auto &arg : ASL) { 1783 StringRef ArgStr(arg); 1784 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1785 // using \00 to separate each commandline options. 1786 Opts.CmdArgs.push_back('\0'); 1787 } 1788 } 1789 1790 auto XRayInstrBundles = 1791 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1792 if (XRayInstrBundles.empty()) 1793 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1794 else 1795 for (const auto &A : XRayInstrBundles) 1796 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1797 Diags, Opts.XRayInstrumentationBundle); 1798 1799 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1800 StringRef Name = A->getValue(); 1801 if (Name == "full") { 1802 Opts.CFProtectionReturn = 1; 1803 Opts.CFProtectionBranch = 1; 1804 } else if (Name == "return") 1805 Opts.CFProtectionReturn = 1; 1806 else if (Name == "branch") 1807 Opts.CFProtectionBranch = 1; 1808 else if (Name != "none") 1809 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1810 } 1811 1812 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1813 Opts.IBTSeal = 1; 1814 1815 for (auto *A : 1816 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1817 CodeGenOptions::BitcodeFileToLink F; 1818 F.Filename = A->getValue(); 1819 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1820 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1821 // When linking CUDA bitcode, propagate function attributes so that 1822 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1823 F.PropagateAttrs = true; 1824 F.Internalize = true; 1825 } 1826 Opts.LinkBitcodeFiles.push_back(F); 1827 } 1828 1829 if (Args.getLastArg(OPT_femulated_tls) || 1830 Args.getLastArg(OPT_fno_emulated_tls)) { 1831 Opts.ExplicitEmulatedTLS = true; 1832 } 1833 1834 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1835 if (T.isOSAIX()) { 1836 StringRef Name = A->getValue(); 1837 if (Name != "global-dynamic") 1838 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1839 } 1840 } 1841 1842 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1843 StringRef Val = A->getValue(); 1844 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1845 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1846 if (!Opts.FPDenormalMode.isValid()) 1847 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1848 } 1849 1850 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1851 StringRef Val = A->getValue(); 1852 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1853 if (!Opts.FP32DenormalMode.isValid()) 1854 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1855 } 1856 1857 // X86_32 has -fppc-struct-return and -freg-struct-return. 1858 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1859 if (Arg *A = 1860 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1861 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1862 // TODO: We might want to consider enabling these options on AIX in the 1863 // future. 1864 if (T.isOSAIX()) 1865 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1866 << A->getSpelling() << T.str(); 1867 1868 const Option &O = A->getOption(); 1869 if (O.matches(OPT_fpcc_struct_return) || 1870 O.matches(OPT_maix_struct_return)) { 1871 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1872 } else { 1873 assert(O.matches(OPT_freg_struct_return) || 1874 O.matches(OPT_msvr4_struct_return)); 1875 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1876 } 1877 } 1878 1879 if (Arg *A = 1880 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1881 if (!T.isOSAIX()) 1882 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1883 << A->getSpelling() << T.str(); 1884 1885 const Option &O = A->getOption(); 1886 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1887 } 1888 1889 bool NeedLocTracking = false; 1890 1891 if (!Opts.OptRecordFile.empty()) 1892 NeedLocTracking = true; 1893 1894 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1895 Opts.OptRecordPasses = A->getValue(); 1896 NeedLocTracking = true; 1897 } 1898 1899 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1900 Opts.OptRecordFormat = A->getValue(); 1901 NeedLocTracking = true; 1902 } 1903 1904 Opts.OptimizationRemark = 1905 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1906 1907 Opts.OptimizationRemarkMissed = 1908 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1909 1910 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1911 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1912 1913 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1914 Opts.OptimizationRemarkMissed.hasValidPattern() || 1915 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1916 1917 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1918 bool UsingProfile = UsingSampleProfile || 1919 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1920 1921 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1922 // An IR file will contain PGO as metadata 1923 IK.getLanguage() != Language::LLVM_IR) 1924 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1925 << "-fdiagnostics-show-hotness"; 1926 1927 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1928 if (auto *arg = 1929 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1930 auto ResultOrErr = 1931 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1932 1933 if (!ResultOrErr) { 1934 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1935 << "-fdiagnostics-hotness-threshold="; 1936 } else { 1937 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1938 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1939 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1940 !UsingProfile) 1941 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1942 << "-fdiagnostics-hotness-threshold="; 1943 } 1944 } 1945 1946 if (auto *arg = 1947 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1948 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1949 1950 if (!ResultOrErr) { 1951 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1952 << "-fdiagnostics-misexpect-tolerance="; 1953 } else { 1954 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1955 if ((!Opts.DiagnosticsMisExpectTolerance.hasValue() || 1956 Opts.DiagnosticsMisExpectTolerance.getValue() > 0) && 1957 !UsingProfile) 1958 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 1959 << "-fdiagnostics-misexpect-tolerance="; 1960 } 1961 } 1962 1963 // If the user requested to use a sample profile for PGO, then the 1964 // backend will need to track source location information so the profile 1965 // can be incorporated into the IR. 1966 if (UsingSampleProfile) 1967 NeedLocTracking = true; 1968 1969 if (!Opts.StackUsageOutput.empty()) 1970 NeedLocTracking = true; 1971 1972 // If the user requested a flag that requires source locations available in 1973 // the backend, make sure that the backend tracks source location information. 1974 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1975 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1976 1977 // Parse -fsanitize-recover= arguments. 1978 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1979 parseSanitizerKinds("-fsanitize-recover=", 1980 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1981 Opts.SanitizeRecover); 1982 parseSanitizerKinds("-fsanitize-trap=", 1983 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1984 Opts.SanitizeTrap); 1985 1986 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1987 1988 if (Args.hasArg(options::OPT_ffinite_loops)) 1989 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1990 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1991 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1992 1993 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 1994 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 1995 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1996 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1997 1998 return Diags.getNumErrors() == NumErrorsBefore; 1999 } 2000 2001 static void 2002 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2003 SmallVectorImpl<const char *> &Args, 2004 CompilerInvocation::StringAllocator SA) { 2005 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2006 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2007 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2008 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2009 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2010 MERGER, EXTRACTOR, TABLE_INDEX) \ 2011 GENERATE_OPTION_WITH_MARSHALLING( \ 2012 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2013 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2014 #include "clang/Driver/Options.inc" 2015 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2016 2017 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2018 GenerateArg(Args, OPT_show_includes, SA); 2019 2020 for (const auto &Dep : Opts.ExtraDeps) { 2021 switch (Dep.second) { 2022 case EDK_SanitizeIgnorelist: 2023 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2024 continue; 2025 case EDK_ModuleFile: 2026 // Module file arguments are generated from FrontendOptions and 2027 // HeaderSearchOptions. 2028 continue; 2029 case EDK_ProfileList: 2030 // Profile list arguments are generated from LanguageOptions via the 2031 // marshalling infrastructure. 2032 continue; 2033 case EDK_DepFileEntry: 2034 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2035 break; 2036 } 2037 } 2038 } 2039 2040 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2041 ArgList &Args, DiagnosticsEngine &Diags, 2042 frontend::ActionKind Action, 2043 bool ShowLineMarkers) { 2044 unsigned NumErrorsBefore = Diags.getNumErrors(); 2045 2046 DependencyOutputOptions &DependencyOutputOpts = Opts; 2047 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2048 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2049 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2050 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2051 MERGER, EXTRACTOR, TABLE_INDEX) \ 2052 PARSE_OPTION_WITH_MARSHALLING( \ 2053 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2054 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2055 #include "clang/Driver/Options.inc" 2056 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2057 2058 if (Args.hasArg(OPT_show_includes)) { 2059 // Writing both /showIncludes and preprocessor output to stdout 2060 // would produce interleaved output, so use stderr for /showIncludes. 2061 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2062 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2063 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2064 else 2065 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2066 } else { 2067 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2068 } 2069 2070 // Add sanitizer ignorelists as extra dependencies. 2071 // They won't be discovered by the regular preprocessor, so 2072 // we let make / ninja to know about this implicit dependency. 2073 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2074 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2075 StringRef Val = A->getValue(); 2076 if (!Val.contains('=')) 2077 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2078 } 2079 if (Opts.IncludeSystemHeaders) { 2080 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2081 StringRef Val = A->getValue(); 2082 if (!Val.contains('=')) 2083 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2084 } 2085 } 2086 } 2087 2088 // -fprofile-list= dependencies. 2089 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2090 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2091 2092 // Propagate the extra dependencies. 2093 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2094 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2095 2096 // Only the -fmodule-file=<file> form. 2097 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2098 StringRef Val = A->getValue(); 2099 if (!Val.contains('=')) 2100 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2101 } 2102 2103 return Diags.getNumErrors() == NumErrorsBefore; 2104 } 2105 2106 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2107 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2108 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2109 // Support both clang's -f[no-]color-diagnostics and gcc's 2110 // -f[no-]diagnostics-colors[=never|always|auto]. 2111 enum { 2112 Colors_On, 2113 Colors_Off, 2114 Colors_Auto 2115 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2116 for (auto *A : Args) { 2117 const Option &O = A->getOption(); 2118 if (O.matches(options::OPT_fcolor_diagnostics)) { 2119 ShowColors = Colors_On; 2120 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2121 ShowColors = Colors_Off; 2122 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2123 StringRef Value(A->getValue()); 2124 if (Value == "always") 2125 ShowColors = Colors_On; 2126 else if (Value == "never") 2127 ShowColors = Colors_Off; 2128 else if (Value == "auto") 2129 ShowColors = Colors_Auto; 2130 } 2131 } 2132 return ShowColors == Colors_On || 2133 (ShowColors == Colors_Auto && 2134 llvm::sys::Process::StandardErrHasColors()); 2135 } 2136 2137 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2138 DiagnosticsEngine &Diags) { 2139 bool Success = true; 2140 for (const auto &Prefix : VerifyPrefixes) { 2141 // Every prefix must start with a letter and contain only alphanumeric 2142 // characters, hyphens, and underscores. 2143 auto BadChar = llvm::find_if(Prefix, [](char C) { 2144 return !isAlphanumeric(C) && C != '-' && C != '_'; 2145 }); 2146 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2147 Success = false; 2148 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2149 Diags.Report(diag::note_drv_verify_prefix_spelling); 2150 } 2151 } 2152 return Success; 2153 } 2154 2155 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2156 SmallVectorImpl<const char *> &Args, 2157 CompilerInvocation::StringAllocator SA) { 2158 const FileSystemOptions &FileSystemOpts = Opts; 2159 2160 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2161 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2162 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2163 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2164 MERGER, EXTRACTOR, TABLE_INDEX) \ 2165 GENERATE_OPTION_WITH_MARSHALLING( \ 2166 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2167 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2168 #include "clang/Driver/Options.inc" 2169 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2170 } 2171 2172 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2173 DiagnosticsEngine &Diags) { 2174 unsigned NumErrorsBefore = Diags.getNumErrors(); 2175 2176 FileSystemOptions &FileSystemOpts = Opts; 2177 2178 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2179 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2180 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2181 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2182 MERGER, EXTRACTOR, TABLE_INDEX) \ 2183 PARSE_OPTION_WITH_MARSHALLING( \ 2184 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2185 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2186 #include "clang/Driver/Options.inc" 2187 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2188 2189 return Diags.getNumErrors() == NumErrorsBefore; 2190 } 2191 2192 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2193 SmallVectorImpl<const char *> &Args, 2194 CompilerInvocation::StringAllocator SA) { 2195 const MigratorOptions &MigratorOpts = Opts; 2196 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2197 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2198 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2199 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2200 MERGER, EXTRACTOR, TABLE_INDEX) \ 2201 GENERATE_OPTION_WITH_MARSHALLING( \ 2202 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2203 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2204 #include "clang/Driver/Options.inc" 2205 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2206 } 2207 2208 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2209 DiagnosticsEngine &Diags) { 2210 unsigned NumErrorsBefore = Diags.getNumErrors(); 2211 2212 MigratorOptions &MigratorOpts = Opts; 2213 2214 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2215 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2216 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2217 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2218 MERGER, EXTRACTOR, TABLE_INDEX) \ 2219 PARSE_OPTION_WITH_MARSHALLING( \ 2220 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2221 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2222 #include "clang/Driver/Options.inc" 2223 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2224 2225 return Diags.getNumErrors() == NumErrorsBefore; 2226 } 2227 2228 void CompilerInvocation::GenerateDiagnosticArgs( 2229 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2230 StringAllocator SA, bool DefaultDiagColor) { 2231 const DiagnosticOptions *DiagnosticOpts = &Opts; 2232 #define DIAG_OPTION_WITH_MARSHALLING( \ 2233 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2234 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2235 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2236 MERGER, EXTRACTOR, TABLE_INDEX) \ 2237 GENERATE_OPTION_WITH_MARSHALLING( \ 2238 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2239 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2240 #include "clang/Driver/Options.inc" 2241 #undef DIAG_OPTION_WITH_MARSHALLING 2242 2243 if (!Opts.DiagnosticSerializationFile.empty()) 2244 GenerateArg(Args, OPT_diagnostic_serialized_file, 2245 Opts.DiagnosticSerializationFile, SA); 2246 2247 if (Opts.ShowColors) 2248 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2249 2250 if (Opts.VerifyDiagnostics && 2251 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2252 GenerateArg(Args, OPT_verify, SA); 2253 2254 for (const auto &Prefix : Opts.VerifyPrefixes) 2255 if (Prefix != "expected") 2256 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2257 2258 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2259 if (VIU == DiagnosticLevelMask::None) { 2260 // This is the default, don't generate anything. 2261 } else if (VIU == DiagnosticLevelMask::All) { 2262 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2263 } else { 2264 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2265 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2266 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2267 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2268 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2269 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2270 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2271 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2272 } 2273 2274 for (const auto &Warning : Opts.Warnings) { 2275 // This option is automatically generated from UndefPrefixes. 2276 if (Warning == "undef-prefix") 2277 continue; 2278 Args.push_back(SA(StringRef("-W") + Warning)); 2279 } 2280 2281 for (const auto &Remark : Opts.Remarks) { 2282 // These arguments are generated from OptimizationRemark fields of 2283 // CodeGenOptions. 2284 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2285 "pass-analysis", "no-pass-analysis", 2286 "pass-missed", "no-pass-missed"}; 2287 if (llvm::is_contained(IgnoredRemarks, Remark)) 2288 continue; 2289 2290 Args.push_back(SA(StringRef("-R") + Remark)); 2291 } 2292 } 2293 2294 std::unique_ptr<DiagnosticOptions> 2295 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2296 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2297 unsigned MissingArgIndex, MissingArgCount; 2298 InputArgList Args = getDriverOptTable().ParseArgs( 2299 Argv.slice(1), MissingArgIndex, MissingArgCount); 2300 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2301 // Any errors that would be diagnosed here will also be diagnosed later, 2302 // when the DiagnosticsEngine actually exists. 2303 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2304 return DiagOpts; 2305 } 2306 2307 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2308 DiagnosticsEngine *Diags, 2309 bool DefaultDiagColor) { 2310 Optional<DiagnosticsEngine> IgnoringDiags; 2311 if (!Diags) { 2312 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2313 new IgnoringDiagConsumer()); 2314 Diags = &*IgnoringDiags; 2315 } 2316 2317 unsigned NumErrorsBefore = Diags->getNumErrors(); 2318 2319 // The key paths of diagnostic options defined in Options.td start with 2320 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2321 DiagnosticOptions *DiagnosticOpts = &Opts; 2322 2323 #define DIAG_OPTION_WITH_MARSHALLING( \ 2324 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2325 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2326 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2327 MERGER, EXTRACTOR, TABLE_INDEX) \ 2328 PARSE_OPTION_WITH_MARSHALLING( \ 2329 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2330 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2331 #include "clang/Driver/Options.inc" 2332 #undef DIAG_OPTION_WITH_MARSHALLING 2333 2334 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2335 2336 if (Arg *A = 2337 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2338 Opts.DiagnosticSerializationFile = A->getValue(); 2339 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2340 2341 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2342 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2343 if (Args.hasArg(OPT_verify)) 2344 Opts.VerifyPrefixes.push_back("expected"); 2345 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2346 // then sort it to prepare for fast lookup using std::binary_search. 2347 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2348 Opts.VerifyDiagnostics = false; 2349 else 2350 llvm::sort(Opts.VerifyPrefixes); 2351 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2352 parseDiagnosticLevelMask( 2353 "-verify-ignore-unexpected=", 2354 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2355 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2356 DiagMask = DiagnosticLevelMask::All; 2357 Opts.setVerifyIgnoreUnexpected(DiagMask); 2358 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2359 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2360 Diags->Report(diag::warn_ignoring_ftabstop_value) 2361 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2362 } 2363 2364 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2365 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2366 2367 return Diags->getNumErrors() == NumErrorsBefore; 2368 } 2369 2370 /// Parse the argument to the -ftest-module-file-extension 2371 /// command-line argument. 2372 /// 2373 /// \returns true on error, false on success. 2374 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2375 std::string &BlockName, 2376 unsigned &MajorVersion, 2377 unsigned &MinorVersion, 2378 bool &Hashed, 2379 std::string &UserInfo) { 2380 SmallVector<StringRef, 5> Args; 2381 Arg.split(Args, ':', 5); 2382 if (Args.size() < 5) 2383 return true; 2384 2385 BlockName = std::string(Args[0]); 2386 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2387 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2388 if (Args[3].getAsInteger(2, Hashed)) return true; 2389 if (Args.size() > 4) 2390 UserInfo = std::string(Args[4]); 2391 return false; 2392 } 2393 2394 /// Return a table that associates command line option specifiers with the 2395 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2396 /// intentionally missing, as this case is handled separately from other 2397 /// frontend options. 2398 static const auto &getFrontendActionTable() { 2399 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2400 {frontend::ASTDeclList, OPT_ast_list}, 2401 2402 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2403 {frontend::ASTDump, OPT_ast_dump_all}, 2404 {frontend::ASTDump, OPT_ast_dump_EQ}, 2405 {frontend::ASTDump, OPT_ast_dump}, 2406 {frontend::ASTDump, OPT_ast_dump_lookups}, 2407 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2408 2409 {frontend::ASTPrint, OPT_ast_print}, 2410 {frontend::ASTView, OPT_ast_view}, 2411 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2412 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2413 {frontend::DumpTokens, OPT_dump_tokens}, 2414 {frontend::EmitAssembly, OPT_S}, 2415 {frontend::EmitBC, OPT_emit_llvm_bc}, 2416 {frontend::EmitHTML, OPT_emit_html}, 2417 {frontend::EmitLLVM, OPT_emit_llvm}, 2418 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2419 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2420 {frontend::EmitObj, OPT_emit_obj}, 2421 {frontend::ExtractAPI, OPT_extract_api}, 2422 2423 {frontend::FixIt, OPT_fixit_EQ}, 2424 {frontend::FixIt, OPT_fixit}, 2425 2426 {frontend::GenerateModule, OPT_emit_module}, 2427 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2428 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2429 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2430 {frontend::GeneratePCH, OPT_emit_pch}, 2431 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2432 {frontend::InitOnly, OPT_init_only}, 2433 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2434 {frontend::ModuleFileInfo, OPT_module_file_info}, 2435 {frontend::VerifyPCH, OPT_verify_pch}, 2436 {frontend::PrintPreamble, OPT_print_preamble}, 2437 {frontend::PrintPreprocessedInput, OPT_E}, 2438 {frontend::TemplightDump, OPT_templight_dump}, 2439 {frontend::RewriteMacros, OPT_rewrite_macros}, 2440 {frontend::RewriteObjC, OPT_rewrite_objc}, 2441 {frontend::RewriteTest, OPT_rewrite_test}, 2442 {frontend::RunAnalysis, OPT_analyze}, 2443 {frontend::MigrateSource, OPT_migrate}, 2444 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2445 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2446 OPT_print_dependency_directives_minimized_source}, 2447 }; 2448 2449 return Table; 2450 } 2451 2452 /// Maps command line option to frontend action. 2453 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2454 for (const auto &ActionOpt : getFrontendActionTable()) 2455 if (ActionOpt.second == Opt.getID()) 2456 return ActionOpt.first; 2457 2458 return None; 2459 } 2460 2461 /// Maps frontend action to command line option. 2462 static Optional<OptSpecifier> 2463 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2464 for (const auto &ActionOpt : getFrontendActionTable()) 2465 if (ActionOpt.first == ProgramAction) 2466 return OptSpecifier(ActionOpt.second); 2467 2468 return None; 2469 } 2470 2471 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2472 SmallVectorImpl<const char *> &Args, 2473 CompilerInvocation::StringAllocator SA, 2474 bool IsHeader) { 2475 const FrontendOptions &FrontendOpts = Opts; 2476 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2477 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2478 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2479 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2480 MERGER, EXTRACTOR, TABLE_INDEX) \ 2481 GENERATE_OPTION_WITH_MARSHALLING( \ 2482 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2483 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2484 #include "clang/Driver/Options.inc" 2485 #undef FRONTEND_OPTION_WITH_MARSHALLING 2486 2487 Optional<OptSpecifier> ProgramActionOpt = 2488 getProgramActionOpt(Opts.ProgramAction); 2489 2490 // Generating a simple flag covers most frontend actions. 2491 std::function<void()> GenerateProgramAction = [&]() { 2492 GenerateArg(Args, *ProgramActionOpt, SA); 2493 }; 2494 2495 if (!ProgramActionOpt) { 2496 // PluginAction is the only program action handled separately. 2497 assert(Opts.ProgramAction == frontend::PluginAction && 2498 "Frontend action without option."); 2499 GenerateProgramAction = [&]() { 2500 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2501 }; 2502 } 2503 2504 // FIXME: Simplify the complex 'AST dump' command line. 2505 if (Opts.ProgramAction == frontend::ASTDump) { 2506 GenerateProgramAction = [&]() { 2507 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2508 // marshalling infrastructure. 2509 2510 if (Opts.ASTDumpFormat != ADOF_Default) { 2511 StringRef Format; 2512 switch (Opts.ASTDumpFormat) { 2513 case ADOF_Default: 2514 llvm_unreachable("Default AST dump format."); 2515 case ADOF_JSON: 2516 Format = "json"; 2517 break; 2518 } 2519 2520 if (Opts.ASTDumpAll) 2521 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2522 if (Opts.ASTDumpDecls) 2523 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2524 } else { 2525 if (Opts.ASTDumpAll) 2526 GenerateArg(Args, OPT_ast_dump_all, SA); 2527 if (Opts.ASTDumpDecls) 2528 GenerateArg(Args, OPT_ast_dump, SA); 2529 } 2530 }; 2531 } 2532 2533 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2534 GenerateProgramAction = [&]() { 2535 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2536 }; 2537 } 2538 2539 GenerateProgramAction(); 2540 2541 for (const auto &PluginArgs : Opts.PluginArgs) { 2542 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2543 const char *Spelling = 2544 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2545 for (const auto &PluginArg : PluginArgs.second) 2546 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2547 } 2548 2549 for (const auto &Ext : Opts.ModuleFileExtensions) 2550 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2551 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2552 2553 if (!Opts.CodeCompletionAt.FileName.empty()) 2554 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2555 SA); 2556 2557 for (const auto &Plugin : Opts.Plugins) 2558 GenerateArg(Args, OPT_load, Plugin, SA); 2559 2560 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2561 2562 for (const auto &ModuleFile : Opts.ModuleFiles) 2563 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2564 2565 if (Opts.AuxTargetCPU.hasValue()) 2566 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2567 2568 if (Opts.AuxTargetFeatures.hasValue()) 2569 for (const auto &Feature : *Opts.AuxTargetFeatures) 2570 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2571 2572 { 2573 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2574 StringRef ModuleMap = 2575 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2576 StringRef HeaderUnit = ""; 2577 switch (Opts.DashX.getHeaderUnitKind()) { 2578 case InputKind::HeaderUnit_None: 2579 break; 2580 case InputKind::HeaderUnit_User: 2581 HeaderUnit = "-user"; 2582 break; 2583 case InputKind::HeaderUnit_System: 2584 HeaderUnit = "-system"; 2585 break; 2586 case InputKind::HeaderUnit_Abs: 2587 HeaderUnit = "-header-unit"; 2588 break; 2589 } 2590 StringRef Header = IsHeader ? "-header" : ""; 2591 2592 StringRef Lang; 2593 switch (Opts.DashX.getLanguage()) { 2594 case Language::C: 2595 Lang = "c"; 2596 break; 2597 case Language::OpenCL: 2598 Lang = "cl"; 2599 break; 2600 case Language::OpenCLCXX: 2601 Lang = "clcpp"; 2602 break; 2603 case Language::CUDA: 2604 Lang = "cuda"; 2605 break; 2606 case Language::HIP: 2607 Lang = "hip"; 2608 break; 2609 case Language::CXX: 2610 Lang = "c++"; 2611 break; 2612 case Language::ObjC: 2613 Lang = "objective-c"; 2614 break; 2615 case Language::ObjCXX: 2616 Lang = "objective-c++"; 2617 break; 2618 case Language::RenderScript: 2619 Lang = "renderscript"; 2620 break; 2621 case Language::Asm: 2622 Lang = "assembler-with-cpp"; 2623 break; 2624 case Language::Unknown: 2625 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2626 "Generating -x argument for unknown language (not precompiled)."); 2627 Lang = "ast"; 2628 break; 2629 case Language::LLVM_IR: 2630 Lang = "ir"; 2631 break; 2632 case Language::HLSL: 2633 Lang = "hlsl"; 2634 break; 2635 } 2636 2637 GenerateArg(Args, OPT_x, 2638 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2639 } 2640 2641 // OPT_INPUT has a unique class, generate it directly. 2642 for (const auto &Input : Opts.Inputs) 2643 Args.push_back(SA(Input.getFile())); 2644 } 2645 2646 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2647 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2648 unsigned NumErrorsBefore = Diags.getNumErrors(); 2649 2650 FrontendOptions &FrontendOpts = Opts; 2651 2652 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2653 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2654 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2655 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2656 MERGER, EXTRACTOR, TABLE_INDEX) \ 2657 PARSE_OPTION_WITH_MARSHALLING( \ 2658 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2659 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2660 #include "clang/Driver/Options.inc" 2661 #undef FRONTEND_OPTION_WITH_MARSHALLING 2662 2663 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2664 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2665 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2666 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2667 assert(ProgramAction && "Option specifier not in Action_Group."); 2668 2669 if (ProgramAction == frontend::ASTDump && 2670 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2671 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2672 .CaseLower("default", ADOF_Default) 2673 .CaseLower("json", ADOF_JSON) 2674 .Default(std::numeric_limits<unsigned>::max()); 2675 2676 if (Val != std::numeric_limits<unsigned>::max()) 2677 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2678 else { 2679 Diags.Report(diag::err_drv_invalid_value) 2680 << A->getAsString(Args) << A->getValue(); 2681 Opts.ASTDumpFormat = ADOF_Default; 2682 } 2683 } 2684 2685 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2686 Opts.FixItSuffix = A->getValue(); 2687 2688 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2689 StringRef ArgStr = 2690 Args.hasArg(OPT_interface_stub_version_EQ) 2691 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2692 : "ifs-v1"; 2693 if (ArgStr == "experimental-yaml-elf-v1" || 2694 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2695 ArgStr == "experimental-tapi-elf-v1") { 2696 std::string ErrorMessage = 2697 "Invalid interface stub format: " + ArgStr.str() + 2698 " is deprecated."; 2699 Diags.Report(diag::err_drv_invalid_value) 2700 << "Must specify a valid interface stub format type, ie: " 2701 "-interface-stub-version=ifs-v1" 2702 << ErrorMessage; 2703 ProgramAction = frontend::ParseSyntaxOnly; 2704 } else if (!ArgStr.startswith("ifs-")) { 2705 std::string ErrorMessage = 2706 "Invalid interface stub format: " + ArgStr.str() + "."; 2707 Diags.Report(diag::err_drv_invalid_value) 2708 << "Must specify a valid interface stub format type, ie: " 2709 "-interface-stub-version=ifs-v1" 2710 << ErrorMessage; 2711 ProgramAction = frontend::ParseSyntaxOnly; 2712 } 2713 } 2714 2715 Opts.ProgramAction = *ProgramAction; 2716 } 2717 2718 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2719 Opts.Plugins.emplace_back(A->getValue(0)); 2720 Opts.ProgramAction = frontend::PluginAction; 2721 Opts.ActionName = A->getValue(); 2722 } 2723 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2724 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2725 2726 for (const std::string &Arg : 2727 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2728 std::string BlockName; 2729 unsigned MajorVersion; 2730 unsigned MinorVersion; 2731 bool Hashed; 2732 std::string UserInfo; 2733 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2734 MinorVersion, Hashed, UserInfo)) { 2735 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2736 2737 continue; 2738 } 2739 2740 // Add the testing module file extension. 2741 Opts.ModuleFileExtensions.push_back( 2742 std::make_shared<TestModuleFileExtension>( 2743 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2744 } 2745 2746 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2747 Opts.CodeCompletionAt = 2748 ParsedSourceLocation::FromString(A->getValue()); 2749 if (Opts.CodeCompletionAt.FileName.empty()) 2750 Diags.Report(diag::err_drv_invalid_value) 2751 << A->getAsString(Args) << A->getValue(); 2752 } 2753 2754 Opts.Plugins = Args.getAllArgValues(OPT_load); 2755 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2756 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2757 // Only the -fmodule-file=<file> form. 2758 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2759 StringRef Val = A->getValue(); 2760 if (!Val.contains('=')) 2761 Opts.ModuleFiles.push_back(std::string(Val)); 2762 } 2763 2764 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2765 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2766 << "-emit-module"; 2767 2768 if (Args.hasArg(OPT_aux_target_cpu)) 2769 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2770 if (Args.hasArg(OPT_aux_target_feature)) 2771 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2772 2773 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2774 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2775 Diags.Report(diag::err_drv_argument_not_allowed_with) 2776 << "ARC migration" << "ObjC migration"; 2777 } 2778 2779 InputKind DashX(Language::Unknown); 2780 if (const Arg *A = Args.getLastArg(OPT_x)) { 2781 StringRef XValue = A->getValue(); 2782 2783 // Parse suffixes: 2784 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2785 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2786 bool Preprocessed = XValue.consume_back("-cpp-output"); 2787 bool ModuleMap = XValue.consume_back("-module-map"); 2788 // Detect and consume the header indicator. 2789 bool IsHeader = 2790 XValue != "precompiled-header" && XValue.consume_back("-header"); 2791 2792 // If we have c++-{user,system}-header, that indicates a header unit input 2793 // likewise, if the user put -fmodule-header together with a header with an 2794 // absolute path (header-unit-header). 2795 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2796 if (IsHeader || Preprocessed) { 2797 if (XValue.consume_back("-header-unit")) 2798 HUK = InputKind::HeaderUnit_Abs; 2799 else if (XValue.consume_back("-system")) 2800 HUK = InputKind::HeaderUnit_System; 2801 else if (XValue.consume_back("-user")) 2802 HUK = InputKind::HeaderUnit_User; 2803 } 2804 2805 // The value set by this processing is an un-preprocessed source which is 2806 // not intended to be a module map or header unit. 2807 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2808 HUK == InputKind::HeaderUnit_None; 2809 2810 // Principal languages. 2811 DashX = llvm::StringSwitch<InputKind>(XValue) 2812 .Case("c", Language::C) 2813 .Case("cl", Language::OpenCL) 2814 .Case("clcpp", Language::OpenCLCXX) 2815 .Case("cuda", Language::CUDA) 2816 .Case("hip", Language::HIP) 2817 .Case("c++", Language::CXX) 2818 .Case("objective-c", Language::ObjC) 2819 .Case("objective-c++", Language::ObjCXX) 2820 .Case("renderscript", Language::RenderScript) 2821 .Case("hlsl", Language::HLSL) 2822 .Default(Language::Unknown); 2823 2824 // "objc[++]-cpp-output" is an acceptable synonym for 2825 // "objective-c[++]-cpp-output". 2826 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2827 HUK == InputKind::HeaderUnit_None) 2828 DashX = llvm::StringSwitch<InputKind>(XValue) 2829 .Case("objc", Language::ObjC) 2830 .Case("objc++", Language::ObjCXX) 2831 .Default(Language::Unknown); 2832 2833 // Some special cases cannot be combined with suffixes. 2834 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2835 HUK == InputKind::HeaderUnit_None) 2836 DashX = llvm::StringSwitch<InputKind>(XValue) 2837 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2838 .Case("assembler-with-cpp", Language::Asm) 2839 .Cases("ast", "pcm", "precompiled-header", 2840 InputKind(Language::Unknown, InputKind::Precompiled)) 2841 .Case("ir", Language::LLVM_IR) 2842 .Default(Language::Unknown); 2843 2844 if (DashX.isUnknown()) 2845 Diags.Report(diag::err_drv_invalid_value) 2846 << A->getAsString(Args) << A->getValue(); 2847 2848 if (Preprocessed) 2849 DashX = DashX.getPreprocessed(); 2850 // A regular header is considered mutually exclusive with a header unit. 2851 if (HUK != InputKind::HeaderUnit_None) { 2852 DashX = DashX.withHeaderUnit(HUK); 2853 IsHeaderFile = true; 2854 } else if (IsHeaderFile) 2855 DashX = DashX.getHeader(); 2856 if (ModuleMap) 2857 DashX = DashX.withFormat(InputKind::ModuleMap); 2858 } 2859 2860 // '-' is the default input if none is given. 2861 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2862 Opts.Inputs.clear(); 2863 if (Inputs.empty()) 2864 Inputs.push_back("-"); 2865 2866 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2867 Inputs.size() > 1) 2868 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2869 2870 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2871 InputKind IK = DashX; 2872 if (IK.isUnknown()) { 2873 IK = FrontendOptions::getInputKindForExtension( 2874 StringRef(Inputs[i]).rsplit('.').second); 2875 // FIXME: Warn on this? 2876 if (IK.isUnknown()) 2877 IK = Language::C; 2878 // FIXME: Remove this hack. 2879 if (i == 0) 2880 DashX = IK; 2881 } 2882 2883 bool IsSystem = false; 2884 2885 // The -emit-module action implicitly takes a module map. 2886 if (Opts.ProgramAction == frontend::GenerateModule && 2887 IK.getFormat() == InputKind::Source) { 2888 IK = IK.withFormat(InputKind::ModuleMap); 2889 IsSystem = Opts.IsSystemModule; 2890 } 2891 2892 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2893 } 2894 2895 Opts.DashX = DashX; 2896 2897 return Diags.getNumErrors() == NumErrorsBefore; 2898 } 2899 2900 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2901 void *MainAddr) { 2902 std::string ClangExecutable = 2903 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2904 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2905 } 2906 2907 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2908 SmallVectorImpl<const char *> &Args, 2909 CompilerInvocation::StringAllocator SA) { 2910 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2911 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2912 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2913 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2914 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2915 MERGER, EXTRACTOR, TABLE_INDEX) \ 2916 GENERATE_OPTION_WITH_MARSHALLING( \ 2917 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2918 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2919 #include "clang/Driver/Options.inc" 2920 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2921 2922 if (Opts.UseLibcxx) 2923 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2924 2925 if (!Opts.ModuleCachePath.empty()) 2926 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2927 2928 for (const auto &File : Opts.PrebuiltModuleFiles) 2929 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2930 2931 for (const auto &Path : Opts.PrebuiltModulePaths) 2932 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2933 2934 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2935 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2936 2937 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2938 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2939 llvm::Optional<bool> IsFramework, 2940 llvm::Optional<bool> IgnoreSysRoot) { 2941 return llvm::is_contained(Groups, Entry.Group) && 2942 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2943 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2944 }; 2945 2946 auto It = Opts.UserEntries.begin(); 2947 auto End = Opts.UserEntries.end(); 2948 2949 // Add -I..., -F..., and -index-header-map options in order. 2950 for (; It < End && 2951 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2952 ++It) { 2953 OptSpecifier Opt = [It, Matches]() { 2954 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2955 return OPT_F; 2956 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2957 return OPT_I; 2958 if (Matches(*It, frontend::Angled, true, true)) 2959 return OPT_F; 2960 if (Matches(*It, frontend::Angled, false, true)) 2961 return OPT_I; 2962 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2963 }(); 2964 2965 if (It->Group == frontend::IndexHeaderMap) 2966 GenerateArg(Args, OPT_index_header_map, SA); 2967 GenerateArg(Args, Opt, It->Path, SA); 2968 }; 2969 2970 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2971 // have already been generated as "-I[xx]yy". If that's the case, their 2972 // position on command line was such that this has no semantic impact on 2973 // include paths. 2974 for (; It < End && 2975 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2976 ++It) { 2977 OptSpecifier Opt = 2978 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2979 GenerateArg(Args, Opt, It->Path, SA); 2980 } 2981 2982 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2983 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2984 // command line was such that this has no semantic impact on include paths. 2985 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2986 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2987 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2988 GenerateArg(Args, OPT_iquote, It->Path, SA); 2989 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2990 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2991 It->Path, SA); 2992 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2993 GenerateArg(Args, OPT_iframework, It->Path, SA); 2994 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2995 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2996 2997 // Add the paths for the various language specific isystem flags. 2998 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2999 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3000 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3001 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3002 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3003 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3004 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3005 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3006 3007 // Add the internal paths from a driver that detects standard include paths. 3008 // Note: Some paths that came from "-internal-isystem" arguments may have 3009 // already been generated as "-isystem". If that's the case, their position on 3010 // command line was such that this has no semantic impact on include paths. 3011 for (; It < End && 3012 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3013 ++It) { 3014 OptSpecifier Opt = It->Group == frontend::System 3015 ? OPT_internal_isystem 3016 : OPT_internal_externc_isystem; 3017 GenerateArg(Args, Opt, It->Path, SA); 3018 } 3019 3020 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3021 3022 // Add the path prefixes which are implicitly treated as being system headers. 3023 for (const auto &P : Opts.SystemHeaderPrefixes) { 3024 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3025 : OPT_no_system_header_prefix; 3026 GenerateArg(Args, Opt, P.Prefix, SA); 3027 } 3028 3029 for (const std::string &F : Opts.VFSOverlayFiles) 3030 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3031 } 3032 3033 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3034 DiagnosticsEngine &Diags, 3035 const std::string &WorkingDir) { 3036 unsigned NumErrorsBefore = Diags.getNumErrors(); 3037 3038 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3039 3040 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3041 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3042 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3043 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3044 MERGER, EXTRACTOR, TABLE_INDEX) \ 3045 PARSE_OPTION_WITH_MARSHALLING( \ 3046 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3047 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3048 #include "clang/Driver/Options.inc" 3049 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3050 3051 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3052 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3053 3054 // Canonicalize -fmodules-cache-path before storing it. 3055 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3056 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3057 if (WorkingDir.empty()) 3058 llvm::sys::fs::make_absolute(P); 3059 else 3060 llvm::sys::fs::make_absolute(WorkingDir, P); 3061 } 3062 llvm::sys::path::remove_dots(P); 3063 Opts.ModuleCachePath = std::string(P.str()); 3064 3065 // Only the -fmodule-file=<name>=<file> form. 3066 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3067 StringRef Val = A->getValue(); 3068 if (Val.contains('=')) { 3069 auto Split = Val.split('='); 3070 Opts.PrebuiltModuleFiles.insert( 3071 {std::string(Split.first), std::string(Split.second)}); 3072 } 3073 } 3074 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3075 Opts.AddPrebuiltModulePath(A->getValue()); 3076 3077 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3078 StringRef MacroDef = A->getValue(); 3079 Opts.ModulesIgnoreMacros.insert( 3080 llvm::CachedHashString(MacroDef.split('=').first)); 3081 } 3082 3083 // Add -I..., -F..., and -index-header-map options in order. 3084 bool IsIndexHeaderMap = false; 3085 bool IsSysrootSpecified = 3086 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3087 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3088 if (A->getOption().matches(OPT_index_header_map)) { 3089 // -index-header-map applies to the next -I or -F. 3090 IsIndexHeaderMap = true; 3091 continue; 3092 } 3093 3094 frontend::IncludeDirGroup Group = 3095 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3096 3097 bool IsFramework = A->getOption().matches(OPT_F); 3098 std::string Path = A->getValue(); 3099 3100 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3101 SmallString<32> Buffer; 3102 llvm::sys::path::append(Buffer, Opts.Sysroot, 3103 llvm::StringRef(A->getValue()).substr(1)); 3104 Path = std::string(Buffer.str()); 3105 } 3106 3107 Opts.AddPath(Path, Group, IsFramework, 3108 /*IgnoreSysroot*/ true); 3109 IsIndexHeaderMap = false; 3110 } 3111 3112 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3113 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3114 for (const auto *A : 3115 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3116 if (A->getOption().matches(OPT_iprefix)) 3117 Prefix = A->getValue(); 3118 else if (A->getOption().matches(OPT_iwithprefix)) 3119 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3120 else 3121 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3122 } 3123 3124 for (const auto *A : Args.filtered(OPT_idirafter)) 3125 Opts.AddPath(A->getValue(), frontend::After, false, true); 3126 for (const auto *A : Args.filtered(OPT_iquote)) 3127 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3128 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3129 Opts.AddPath(A->getValue(), frontend::System, false, 3130 !A->getOption().matches(OPT_iwithsysroot)); 3131 for (const auto *A : Args.filtered(OPT_iframework)) 3132 Opts.AddPath(A->getValue(), frontend::System, true, true); 3133 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3134 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3135 /*IgnoreSysRoot=*/false); 3136 3137 // Add the paths for the various language specific isystem flags. 3138 for (const auto *A : Args.filtered(OPT_c_isystem)) 3139 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3140 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3141 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3142 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3143 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3144 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3145 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3146 3147 // Add the internal paths from a driver that detects standard include paths. 3148 for (const auto *A : 3149 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3150 frontend::IncludeDirGroup Group = frontend::System; 3151 if (A->getOption().matches(OPT_internal_externc_isystem)) 3152 Group = frontend::ExternCSystem; 3153 Opts.AddPath(A->getValue(), Group, false, true); 3154 } 3155 3156 // Add the path prefixes which are implicitly treated as being system headers. 3157 for (const auto *A : 3158 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3159 Opts.AddSystemHeaderPrefix( 3160 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3161 3162 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3163 Opts.AddVFSOverlayFile(A->getValue()); 3164 3165 return Diags.getNumErrors() == NumErrorsBefore; 3166 } 3167 3168 /// Check if input file kind and language standard are compatible. 3169 static bool IsInputCompatibleWithStandard(InputKind IK, 3170 const LangStandard &S) { 3171 switch (IK.getLanguage()) { 3172 case Language::Unknown: 3173 case Language::LLVM_IR: 3174 llvm_unreachable("should not parse language flags for this input"); 3175 3176 case Language::C: 3177 case Language::ObjC: 3178 case Language::RenderScript: 3179 return S.getLanguage() == Language::C; 3180 3181 case Language::OpenCL: 3182 return S.getLanguage() == Language::OpenCL || 3183 S.getLanguage() == Language::OpenCLCXX; 3184 3185 case Language::OpenCLCXX: 3186 return S.getLanguage() == Language::OpenCLCXX; 3187 3188 case Language::CXX: 3189 case Language::ObjCXX: 3190 return S.getLanguage() == Language::CXX; 3191 3192 case Language::CUDA: 3193 // FIXME: What -std= values should be permitted for CUDA compilations? 3194 return S.getLanguage() == Language::CUDA || 3195 S.getLanguage() == Language::CXX; 3196 3197 case Language::HIP: 3198 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3199 3200 case Language::Asm: 3201 // Accept (and ignore) all -std= values. 3202 // FIXME: The -std= value is not ignored; it affects the tokenization 3203 // and preprocessing rules if we're preprocessing this asm input. 3204 return true; 3205 3206 case Language::HLSL: 3207 return S.getLanguage() == Language::HLSL; 3208 } 3209 3210 llvm_unreachable("unexpected input language"); 3211 } 3212 3213 /// Get language name for given input kind. 3214 static StringRef GetInputKindName(InputKind IK) { 3215 switch (IK.getLanguage()) { 3216 case Language::C: 3217 return "C"; 3218 case Language::ObjC: 3219 return "Objective-C"; 3220 case Language::CXX: 3221 return "C++"; 3222 case Language::ObjCXX: 3223 return "Objective-C++"; 3224 case Language::OpenCL: 3225 return "OpenCL"; 3226 case Language::OpenCLCXX: 3227 return "C++ for OpenCL"; 3228 case Language::CUDA: 3229 return "CUDA"; 3230 case Language::RenderScript: 3231 return "RenderScript"; 3232 case Language::HIP: 3233 return "HIP"; 3234 3235 case Language::Asm: 3236 return "Asm"; 3237 case Language::LLVM_IR: 3238 return "LLVM IR"; 3239 3240 case Language::HLSL: 3241 return "HLSL"; 3242 3243 case Language::Unknown: 3244 break; 3245 } 3246 llvm_unreachable("unknown input language"); 3247 } 3248 3249 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3250 SmallVectorImpl<const char *> &Args, 3251 StringAllocator SA, 3252 const llvm::Triple &T, InputKind IK) { 3253 if (IK.getFormat() == InputKind::Precompiled || 3254 IK.getLanguage() == Language::LLVM_IR) { 3255 if (Opts.ObjCAutoRefCount) 3256 GenerateArg(Args, OPT_fobjc_arc, SA); 3257 if (Opts.PICLevel != 0) 3258 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3259 if (Opts.PIE) 3260 GenerateArg(Args, OPT_pic_is_pie, SA); 3261 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3262 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3263 3264 return; 3265 } 3266 3267 OptSpecifier StdOpt; 3268 switch (Opts.LangStd) { 3269 case LangStandard::lang_opencl10: 3270 case LangStandard::lang_opencl11: 3271 case LangStandard::lang_opencl12: 3272 case LangStandard::lang_opencl20: 3273 case LangStandard::lang_opencl30: 3274 case LangStandard::lang_openclcpp10: 3275 case LangStandard::lang_openclcpp2021: 3276 StdOpt = OPT_cl_std_EQ; 3277 break; 3278 default: 3279 StdOpt = OPT_std_EQ; 3280 break; 3281 } 3282 3283 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3284 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3285 3286 if (Opts.IncludeDefaultHeader) 3287 GenerateArg(Args, OPT_finclude_default_header, SA); 3288 if (Opts.DeclareOpenCLBuiltins) 3289 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3290 3291 const LangOptions *LangOpts = &Opts; 3292 3293 #define LANG_OPTION_WITH_MARSHALLING( \ 3294 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3295 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3296 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3297 MERGER, EXTRACTOR, TABLE_INDEX) \ 3298 GENERATE_OPTION_WITH_MARSHALLING( \ 3299 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3300 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3301 #include "clang/Driver/Options.inc" 3302 #undef LANG_OPTION_WITH_MARSHALLING 3303 3304 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3305 3306 if (Opts.ObjC) { 3307 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3308 3309 if (Opts.GC == LangOptions::GCOnly) 3310 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3311 else if (Opts.GC == LangOptions::HybridGC) 3312 GenerateArg(Args, OPT_fobjc_gc, SA); 3313 else if (Opts.ObjCAutoRefCount == 1) 3314 GenerateArg(Args, OPT_fobjc_arc, SA); 3315 3316 if (Opts.ObjCWeakRuntime) 3317 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3318 3319 if (Opts.ObjCWeak) 3320 GenerateArg(Args, OPT_fobjc_weak, SA); 3321 3322 if (Opts.ObjCSubscriptingLegacyRuntime) 3323 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3324 } 3325 3326 if (Opts.GNUCVersion != 0) { 3327 unsigned Major = Opts.GNUCVersion / 100 / 100; 3328 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3329 unsigned Patch = Opts.GNUCVersion % 100; 3330 GenerateArg(Args, OPT_fgnuc_version_EQ, 3331 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3332 } 3333 3334 if (Opts.IgnoreXCOFFVisibility) 3335 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3336 3337 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3338 GenerateArg(Args, OPT_ftrapv, SA); 3339 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3340 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3341 GenerateArg(Args, OPT_fwrapv, SA); 3342 } 3343 3344 if (Opts.MSCompatibilityVersion != 0) { 3345 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3346 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3347 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3348 GenerateArg(Args, OPT_fms_compatibility_version, 3349 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3350 } 3351 3352 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3353 if (!Opts.Trigraphs) 3354 GenerateArg(Args, OPT_fno_trigraphs, SA); 3355 } else { 3356 if (Opts.Trigraphs) 3357 GenerateArg(Args, OPT_ftrigraphs, SA); 3358 } 3359 3360 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3361 GenerateArg(Args, OPT_fblocks, SA); 3362 3363 if (Opts.ConvergentFunctions && 3364 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3365 GenerateArg(Args, OPT_fconvergent_functions, SA); 3366 3367 if (Opts.NoBuiltin && !Opts.Freestanding) 3368 GenerateArg(Args, OPT_fno_builtin, SA); 3369 3370 if (!Opts.NoBuiltin) 3371 for (const auto &Func : Opts.NoBuiltinFuncs) 3372 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3373 3374 if (Opts.LongDoubleSize == 128) 3375 GenerateArg(Args, OPT_mlong_double_128, SA); 3376 else if (Opts.LongDoubleSize == 64) 3377 GenerateArg(Args, OPT_mlong_double_64, SA); 3378 else if (Opts.LongDoubleSize == 80) 3379 GenerateArg(Args, OPT_mlong_double_80, SA); 3380 3381 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3382 3383 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3384 // '-fopenmp-targets='. 3385 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3386 GenerateArg(Args, OPT_fopenmp, SA); 3387 3388 if (Opts.OpenMP != 50) 3389 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3390 3391 if (!Opts.OpenMPUseTLS) 3392 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3393 3394 if (Opts.OpenMPIsDevice) 3395 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3396 3397 if (Opts.OpenMPIRBuilder) 3398 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3399 } 3400 3401 if (Opts.OpenMPSimd) { 3402 GenerateArg(Args, OPT_fopenmp_simd, SA); 3403 3404 if (Opts.OpenMP != 50) 3405 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3406 } 3407 3408 if (Opts.OpenMPThreadSubscription) 3409 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3410 3411 if (Opts.OpenMPTeamSubscription) 3412 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3413 3414 if (Opts.OpenMPTargetDebug != 0) 3415 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3416 Twine(Opts.OpenMPTargetDebug), SA); 3417 3418 if (Opts.OpenMPCUDANumSMs != 0) 3419 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3420 Twine(Opts.OpenMPCUDANumSMs), SA); 3421 3422 if (Opts.OpenMPCUDABlocksPerSM != 0) 3423 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3424 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3425 3426 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3427 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3428 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3429 3430 if (!Opts.OMPTargetTriples.empty()) { 3431 std::string Targets; 3432 llvm::raw_string_ostream OS(Targets); 3433 llvm::interleave( 3434 Opts.OMPTargetTriples, OS, 3435 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3436 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3437 } 3438 3439 if (!Opts.OMPHostIRFile.empty()) 3440 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3441 3442 if (Opts.OpenMPCUDAMode) 3443 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3444 3445 if (Opts.OpenMPCUDAForceFullRuntime) 3446 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3447 3448 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3449 // generated from CodeGenOptions. 3450 3451 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3452 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3453 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3454 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3455 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3456 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3457 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3458 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3459 3460 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3461 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3462 3463 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3464 for (const std::string &F : Opts.NoSanitizeFiles) 3465 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3466 3467 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3468 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3469 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3470 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3471 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3472 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3473 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3474 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3475 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3476 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3477 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3478 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3479 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3480 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3481 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3482 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3483 3484 if (Opts.getSignReturnAddressScope() == 3485 LangOptions::SignReturnAddressScopeKind::All) 3486 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3487 else if (Opts.getSignReturnAddressScope() == 3488 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3489 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3490 3491 if (Opts.getSignReturnAddressKey() == 3492 LangOptions::SignReturnAddressKeyKind::BKey) 3493 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3494 3495 if (Opts.CXXABI) 3496 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3497 SA); 3498 3499 if (Opts.RelativeCXXABIVTables) 3500 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3501 else 3502 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3503 3504 if (Opts.UseTargetPathSeparator) 3505 GenerateArg(Args, OPT_ffile_reproducible, SA); 3506 else 3507 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3508 3509 for (const auto &MP : Opts.MacroPrefixMap) 3510 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3511 3512 if (!Opts.RandstructSeed.empty()) 3513 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3514 } 3515 3516 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3517 InputKind IK, const llvm::Triple &T, 3518 std::vector<std::string> &Includes, 3519 DiagnosticsEngine &Diags) { 3520 unsigned NumErrorsBefore = Diags.getNumErrors(); 3521 3522 if (IK.getFormat() == InputKind::Precompiled || 3523 IK.getLanguage() == Language::LLVM_IR) { 3524 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3525 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3526 // what the input type is. 3527 if (Args.hasArg(OPT_fobjc_arc)) 3528 Opts.ObjCAutoRefCount = 1; 3529 // PICLevel and PIELevel are needed during code generation and this should 3530 // be set regardless of the input type. 3531 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3532 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3533 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3534 Diags, Opts.Sanitize); 3535 3536 return Diags.getNumErrors() == NumErrorsBefore; 3537 } 3538 3539 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3540 // FIXME: Should we really be parsing this for an Language::Asm input? 3541 3542 // FIXME: Cleanup per-file based stuff. 3543 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3544 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3545 LangStd = LangStandard::getLangKind(A->getValue()); 3546 if (LangStd == LangStandard::lang_unspecified) { 3547 Diags.Report(diag::err_drv_invalid_value) 3548 << A->getAsString(Args) << A->getValue(); 3549 // Report supported standards with short description. 3550 for (unsigned KindValue = 0; 3551 KindValue != LangStandard::lang_unspecified; 3552 ++KindValue) { 3553 const LangStandard &Std = LangStandard::getLangStandardForKind( 3554 static_cast<LangStandard::Kind>(KindValue)); 3555 if (IsInputCompatibleWithStandard(IK, Std)) { 3556 auto Diag = Diags.Report(diag::note_drv_use_standard); 3557 Diag << Std.getName() << Std.getDescription(); 3558 unsigned NumAliases = 0; 3559 #define LANGSTANDARD(id, name, lang, desc, features) 3560 #define LANGSTANDARD_ALIAS(id, alias) \ 3561 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3562 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3563 #include "clang/Basic/LangStandards.def" 3564 Diag << NumAliases; 3565 #define LANGSTANDARD(id, name, lang, desc, features) 3566 #define LANGSTANDARD_ALIAS(id, alias) \ 3567 if (KindValue == LangStandard::lang_##id) Diag << alias; 3568 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3569 #include "clang/Basic/LangStandards.def" 3570 } 3571 } 3572 } else { 3573 // Valid standard, check to make sure language and standard are 3574 // compatible. 3575 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3576 if (!IsInputCompatibleWithStandard(IK, Std)) { 3577 Diags.Report(diag::err_drv_argument_not_allowed_with) 3578 << A->getAsString(Args) << GetInputKindName(IK); 3579 } 3580 } 3581 } 3582 3583 // -cl-std only applies for OpenCL language standards. 3584 // Override the -std option in this case. 3585 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3586 LangStandard::Kind OpenCLLangStd 3587 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3588 .Cases("cl", "CL", LangStandard::lang_opencl10) 3589 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3590 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3591 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3592 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3593 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3594 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3595 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3596 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3597 .Default(LangStandard::lang_unspecified); 3598 3599 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3600 Diags.Report(diag::err_drv_invalid_value) 3601 << A->getAsString(Args) << A->getValue(); 3602 } 3603 else 3604 LangStd = OpenCLLangStd; 3605 } 3606 3607 // These need to be parsed now. They are used to set OpenCL defaults. 3608 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3609 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3610 3611 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3612 3613 // The key paths of codegen options defined in Options.td start with 3614 // "LangOpts->". Let's provide the expected variable name and type. 3615 LangOptions *LangOpts = &Opts; 3616 3617 #define LANG_OPTION_WITH_MARSHALLING( \ 3618 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3619 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3620 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3621 MERGER, EXTRACTOR, TABLE_INDEX) \ 3622 PARSE_OPTION_WITH_MARSHALLING( \ 3623 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3624 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3625 #include "clang/Driver/Options.inc" 3626 #undef LANG_OPTION_WITH_MARSHALLING 3627 3628 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3629 StringRef Name = A->getValue(); 3630 if (Name == "full" || Name == "branch") { 3631 Opts.CFProtectionBranch = 1; 3632 } 3633 } 3634 3635 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3636 !Args.hasArg(OPT_sycl_std_EQ)) { 3637 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3638 // provide -sycl-std=, we want to default it to whatever the default SYCL 3639 // version is. I could not find a way to express this with the options 3640 // tablegen because we still want this value to be SYCL_None when the user 3641 // is not in device or host mode. 3642 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3643 } 3644 3645 if (Opts.ObjC) { 3646 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3647 StringRef value = arg->getValue(); 3648 if (Opts.ObjCRuntime.tryParse(value)) 3649 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3650 } 3651 3652 if (Args.hasArg(OPT_fobjc_gc_only)) 3653 Opts.setGC(LangOptions::GCOnly); 3654 else if (Args.hasArg(OPT_fobjc_gc)) 3655 Opts.setGC(LangOptions::HybridGC); 3656 else if (Args.hasArg(OPT_fobjc_arc)) { 3657 Opts.ObjCAutoRefCount = 1; 3658 if (!Opts.ObjCRuntime.allowsARC()) 3659 Diags.Report(diag::err_arc_unsupported_on_runtime); 3660 } 3661 3662 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3663 // whether the feature is actually enabled. This is predominantly 3664 // determined by -fobjc-runtime, but we allow it to be overridden 3665 // from the command line for testing purposes. 3666 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3667 Opts.ObjCWeakRuntime = 1; 3668 else 3669 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3670 3671 // ObjCWeak determines whether __weak is actually enabled. 3672 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3673 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3674 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3675 assert(!Opts.ObjCWeak); 3676 } else if (Opts.getGC() != LangOptions::NonGC) { 3677 Diags.Report(diag::err_objc_weak_with_gc); 3678 } else if (!Opts.ObjCWeakRuntime) { 3679 Diags.Report(diag::err_objc_weak_unsupported); 3680 } else { 3681 Opts.ObjCWeak = 1; 3682 } 3683 } else if (Opts.ObjCAutoRefCount) { 3684 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3685 } 3686 3687 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3688 Opts.ObjCSubscriptingLegacyRuntime = 3689 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3690 } 3691 3692 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3693 // Check that the version has 1 to 3 components and the minor and patch 3694 // versions fit in two decimal digits. 3695 VersionTuple GNUCVer; 3696 bool Invalid = GNUCVer.tryParse(A->getValue()); 3697 unsigned Major = GNUCVer.getMajor(); 3698 unsigned Minor = GNUCVer.getMinor().value_or(0); 3699 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3700 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3701 Diags.Report(diag::err_drv_invalid_value) 3702 << A->getAsString(Args) << A->getValue(); 3703 } 3704 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3705 } 3706 3707 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3708 Opts.IgnoreXCOFFVisibility = 1; 3709 3710 if (Args.hasArg(OPT_ftrapv)) { 3711 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3712 // Set the handler, if one is specified. 3713 Opts.OverflowHandler = 3714 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3715 } 3716 else if (Args.hasArg(OPT_fwrapv)) 3717 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3718 3719 Opts.MSCompatibilityVersion = 0; 3720 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3721 VersionTuple VT; 3722 if (VT.tryParse(A->getValue())) 3723 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3724 << A->getValue(); 3725 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3726 VT.getMinor().value_or(0) * 100000 + 3727 VT.getSubminor().value_or(0); 3728 } 3729 3730 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3731 // is specified, or -std is set to a conforming mode. 3732 // Trigraphs are disabled by default in c++1z onwards. 3733 // For z/OS, trigraphs are enabled by default (without regard to the above). 3734 Opts.Trigraphs = 3735 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3736 Opts.Trigraphs = 3737 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3738 3739 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3740 && Opts.OpenCLVersion == 200); 3741 3742 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3743 Opts.SYCLIsDevice || 3744 Args.hasArg(OPT_fconvergent_functions); 3745 3746 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3747 if (!Opts.NoBuiltin) 3748 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3749 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3750 if (A->getOption().matches(options::OPT_mlong_double_64)) 3751 Opts.LongDoubleSize = 64; 3752 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3753 Opts.LongDoubleSize = 80; 3754 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3755 Opts.LongDoubleSize = 128; 3756 else 3757 Opts.LongDoubleSize = 0; 3758 } 3759 if (Opts.FastRelaxedMath) 3760 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3761 3762 llvm::sort(Opts.ModuleFeatures); 3763 3764 // -mrtd option 3765 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3766 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3767 Diags.Report(diag::err_drv_argument_not_allowed_with) 3768 << A->getSpelling() << "-fdefault-calling-conv"; 3769 else { 3770 if (T.getArch() != llvm::Triple::x86) 3771 Diags.Report(diag::err_drv_argument_not_allowed_with) 3772 << A->getSpelling() << T.getTriple(); 3773 else 3774 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3775 } 3776 } 3777 3778 // Check if -fopenmp is specified and set default version to 5.0. 3779 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3780 // Check if -fopenmp-simd is specified. 3781 bool IsSimdSpecified = 3782 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3783 /*Default=*/false); 3784 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3785 Opts.OpenMPUseTLS = 3786 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3787 Opts.OpenMPIsDevice = 3788 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3789 Opts.OpenMPIRBuilder = 3790 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3791 bool IsTargetSpecified = 3792 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3793 3794 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3795 3796 if (Opts.OpenMP || Opts.OpenMPSimd) { 3797 if (int Version = getLastArgIntValue( 3798 Args, OPT_fopenmp_version_EQ, 3799 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3800 Opts.OpenMP = Version; 3801 // Provide diagnostic when a given target is not expected to be an OpenMP 3802 // device or host. 3803 if (!Opts.OpenMPIsDevice) { 3804 switch (T.getArch()) { 3805 default: 3806 break; 3807 // Add unsupported host targets here: 3808 case llvm::Triple::nvptx: 3809 case llvm::Triple::nvptx64: 3810 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3811 break; 3812 } 3813 } 3814 } 3815 3816 // Set the flag to prevent the implementation from emitting device exception 3817 // handling code for those requiring so. 3818 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3819 Opts.OpenCLCPlusPlus) { 3820 3821 Opts.Exceptions = 0; 3822 Opts.CXXExceptions = 0; 3823 } 3824 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3825 Opts.OpenMPCUDANumSMs = 3826 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3827 Opts.OpenMPCUDANumSMs, Diags); 3828 Opts.OpenMPCUDABlocksPerSM = 3829 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3830 Opts.OpenMPCUDABlocksPerSM, Diags); 3831 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3832 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3833 Opts.OpenMPCUDAReductionBufNum, Diags); 3834 } 3835 3836 // Set the value of the debugging flag used in the new offloading device RTL. 3837 // Set either by a specific value or to a default if not specified. 3838 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3839 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3840 Opts.OpenMPTargetDebug = getLastArgIntValue( 3841 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3842 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3843 Opts.OpenMPTargetDebug = 1; 3844 } 3845 3846 if (Opts.OpenMPIsDevice) { 3847 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3848 Opts.OpenMPTeamSubscription = true; 3849 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3850 Opts.OpenMPThreadSubscription = true; 3851 } 3852 3853 // Get the OpenMP target triples if any. 3854 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3855 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3856 auto getArchPtrSize = [](const llvm::Triple &T) { 3857 if (T.isArch16Bit()) 3858 return Arch16Bit; 3859 if (T.isArch32Bit()) 3860 return Arch32Bit; 3861 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3862 return Arch64Bit; 3863 }; 3864 3865 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3866 llvm::Triple TT(A->getValue(i)); 3867 3868 if (TT.getArch() == llvm::Triple::UnknownArch || 3869 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3870 TT.getArch() == llvm::Triple::nvptx || 3871 TT.getArch() == llvm::Triple::nvptx64 || 3872 TT.getArch() == llvm::Triple::amdgcn || 3873 TT.getArch() == llvm::Triple::x86 || 3874 TT.getArch() == llvm::Triple::x86_64)) 3875 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3876 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3877 Diags.Report(diag::err_drv_incompatible_omp_arch) 3878 << A->getValue(i) << T.str(); 3879 else 3880 Opts.OMPTargetTriples.push_back(TT); 3881 } 3882 } 3883 3884 // Get OpenMP host file path if any and report if a non existent file is 3885 // found 3886 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3887 Opts.OMPHostIRFile = A->getValue(); 3888 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3889 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3890 << Opts.OMPHostIRFile; 3891 } 3892 3893 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3894 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3895 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3896 3897 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3898 Opts.OpenMPCUDAForceFullRuntime = 3899 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3900 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3901 3902 // FIXME: Eliminate this dependency. 3903 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3904 OptSize = getOptimizationLevelSize(Args); 3905 Opts.Optimize = Opt != 0; 3906 Opts.OptimizeSize = OptSize != 0; 3907 3908 // This is the __NO_INLINE__ define, which just depends on things like the 3909 // optimization level and -fno-inline, not actually whether the backend has 3910 // inlining enabled. 3911 Opts.NoInlineDefine = !Opts.Optimize; 3912 if (Arg *InlineArg = Args.getLastArg( 3913 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3914 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3915 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3916 Opts.NoInlineDefine = true; 3917 3918 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3919 StringRef Val = A->getValue(); 3920 if (Val == "fast") 3921 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3922 else if (Val == "on") 3923 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3924 else if (Val == "off") 3925 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3926 else if (Val == "fast-honor-pragmas") 3927 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3928 else 3929 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3930 } 3931 3932 // Parse -fsanitize= arguments. 3933 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3934 Diags, Opts.Sanitize); 3935 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3936 std::vector<std::string> systemIgnorelists = 3937 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3938 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3939 systemIgnorelists.begin(), 3940 systemIgnorelists.end()); 3941 3942 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3943 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3944 3945 StringRef Ver = A->getValue(); 3946 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3947 unsigned Major, Minor = 0; 3948 3949 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3950 // y or y.0 (4 <= y <= current version). 3951 if (!VerParts.first.startswith("0") && 3952 !VerParts.first.getAsInteger(10, Major) && 3953 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3954 (Major == 3 ? VerParts.second.size() == 1 && 3955 !VerParts.second.getAsInteger(10, Minor) 3956 : VerParts.first.size() == Ver.size() || 3957 VerParts.second == "0")) { 3958 // Got a valid version number. 3959 if (Major == 3 && Minor <= 8) 3960 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3961 else if (Major <= 4) 3962 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3963 else if (Major <= 6) 3964 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3965 else if (Major <= 7) 3966 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3967 else if (Major <= 9) 3968 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3969 else if (Major <= 11) 3970 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3971 else if (Major <= 12) 3972 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 3973 else if (Major <= 14) 3974 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 3975 } else if (Ver != "latest") { 3976 Diags.Report(diag::err_drv_invalid_value) 3977 << A->getAsString(Args) << A->getValue(); 3978 } 3979 } 3980 3981 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3982 StringRef SignScope = A->getValue(); 3983 3984 if (SignScope.equals_insensitive("none")) 3985 Opts.setSignReturnAddressScope( 3986 LangOptions::SignReturnAddressScopeKind::None); 3987 else if (SignScope.equals_insensitive("all")) 3988 Opts.setSignReturnAddressScope( 3989 LangOptions::SignReturnAddressScopeKind::All); 3990 else if (SignScope.equals_insensitive("non-leaf")) 3991 Opts.setSignReturnAddressScope( 3992 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3993 else 3994 Diags.Report(diag::err_drv_invalid_value) 3995 << A->getAsString(Args) << SignScope; 3996 3997 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3998 StringRef SignKey = A->getValue(); 3999 if (!SignScope.empty() && !SignKey.empty()) { 4000 if (SignKey.equals_insensitive("a_key")) 4001 Opts.setSignReturnAddressKey( 4002 LangOptions::SignReturnAddressKeyKind::AKey); 4003 else if (SignKey.equals_insensitive("b_key")) 4004 Opts.setSignReturnAddressKey( 4005 LangOptions::SignReturnAddressKeyKind::BKey); 4006 else 4007 Diags.Report(diag::err_drv_invalid_value) 4008 << A->getAsString(Args) << SignKey; 4009 } 4010 } 4011 } 4012 4013 // The value can be empty, which indicates the system default should be used. 4014 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4015 if (!CXXABI.empty()) { 4016 if (!TargetCXXABI::isABI(CXXABI)) { 4017 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4018 } else { 4019 auto Kind = TargetCXXABI::getKind(CXXABI); 4020 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4021 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4022 else 4023 Opts.CXXABI = Kind; 4024 } 4025 } 4026 4027 Opts.RelativeCXXABIVTables = 4028 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4029 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4030 TargetCXXABI::usesRelativeVTables(T)); 4031 4032 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4033 auto Split = StringRef(A).split('='); 4034 Opts.MacroPrefixMap.insert( 4035 {std::string(Split.first), std::string(Split.second)}); 4036 } 4037 4038 Opts.UseTargetPathSeparator = 4039 !Args.getLastArg(OPT_fno_file_reproducible) && 4040 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4041 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4042 Args.getLastArg(OPT_ffile_reproducible)); 4043 4044 // Error if -mvscale-min is unbounded. 4045 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4046 unsigned VScaleMin; 4047 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4048 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4049 } 4050 4051 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4052 std::ifstream SeedFile(A->getValue(0)); 4053 4054 if (!SeedFile.is_open()) 4055 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4056 << A->getValue(0); 4057 4058 std::getline(SeedFile, Opts.RandstructSeed); 4059 } 4060 4061 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4062 Opts.RandstructSeed = A->getValue(0); 4063 4064 return Diags.getNumErrors() == NumErrorsBefore; 4065 } 4066 4067 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4068 switch (Action) { 4069 case frontend::ASTDeclList: 4070 case frontend::ASTDump: 4071 case frontend::ASTPrint: 4072 case frontend::ASTView: 4073 case frontend::EmitAssembly: 4074 case frontend::EmitBC: 4075 case frontend::EmitHTML: 4076 case frontend::EmitLLVM: 4077 case frontend::EmitLLVMOnly: 4078 case frontend::EmitCodeGenOnly: 4079 case frontend::EmitObj: 4080 case frontend::ExtractAPI: 4081 case frontend::FixIt: 4082 case frontend::GenerateModule: 4083 case frontend::GenerateModuleInterface: 4084 case frontend::GenerateHeaderModule: 4085 case frontend::GenerateHeaderUnit: 4086 case frontend::GeneratePCH: 4087 case frontend::GenerateInterfaceStubs: 4088 case frontend::ParseSyntaxOnly: 4089 case frontend::ModuleFileInfo: 4090 case frontend::VerifyPCH: 4091 case frontend::PluginAction: 4092 case frontend::RewriteObjC: 4093 case frontend::RewriteTest: 4094 case frontend::RunAnalysis: 4095 case frontend::TemplightDump: 4096 case frontend::MigrateSource: 4097 return false; 4098 4099 case frontend::DumpCompilerOptions: 4100 case frontend::DumpRawTokens: 4101 case frontend::DumpTokens: 4102 case frontend::InitOnly: 4103 case frontend::PrintPreamble: 4104 case frontend::PrintPreprocessedInput: 4105 case frontend::RewriteMacros: 4106 case frontend::RunPreprocessorOnly: 4107 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4108 return true; 4109 } 4110 llvm_unreachable("invalid frontend action"); 4111 } 4112 4113 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4114 SmallVectorImpl<const char *> &Args, 4115 CompilerInvocation::StringAllocator SA, 4116 const LangOptions &LangOpts, 4117 const FrontendOptions &FrontendOpts, 4118 const CodeGenOptions &CodeGenOpts) { 4119 PreprocessorOptions *PreprocessorOpts = &Opts; 4120 4121 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4122 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4123 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4124 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4125 MERGER, EXTRACTOR, TABLE_INDEX) \ 4126 GENERATE_OPTION_WITH_MARSHALLING( \ 4127 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4128 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4129 #include "clang/Driver/Options.inc" 4130 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4131 4132 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4133 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4134 4135 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4136 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4137 4138 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4139 GenerateArg(Args, OPT_preamble_bytes_EQ, 4140 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4141 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4142 SA); 4143 4144 for (const auto &M : Opts.Macros) { 4145 // Don't generate __CET__ macro definitions. They are implied by the 4146 // -fcf-protection option that is generated elsewhere. 4147 if (M.first == "__CET__=1" && !M.second && 4148 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4149 continue; 4150 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4151 !CodeGenOpts.CFProtectionBranch) 4152 continue; 4153 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4154 CodeGenOpts.CFProtectionBranch) 4155 continue; 4156 4157 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4158 } 4159 4160 for (const auto &I : Opts.Includes) { 4161 // Don't generate OpenCL includes. They are implied by other flags that are 4162 // generated elsewhere. 4163 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4164 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4165 I == "opencl-c.h")) 4166 continue; 4167 // Don't generate HLSL includes. They are implied by other flags that are 4168 // generated elsewhere. 4169 if (LangOpts.HLSL && I == "hlsl.h") 4170 continue; 4171 4172 GenerateArg(Args, OPT_include, I, SA); 4173 } 4174 4175 for (const auto &CI : Opts.ChainedIncludes) 4176 GenerateArg(Args, OPT_chain_include, CI, SA); 4177 4178 for (const auto &RF : Opts.RemappedFiles) 4179 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4180 4181 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4182 // generated elsewhere. 4183 } 4184 4185 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4186 DiagnosticsEngine &Diags, 4187 frontend::ActionKind Action, 4188 const FrontendOptions &FrontendOpts) { 4189 unsigned NumErrorsBefore = Diags.getNumErrors(); 4190 4191 PreprocessorOptions *PreprocessorOpts = &Opts; 4192 4193 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4194 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4195 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4196 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4197 MERGER, EXTRACTOR, TABLE_INDEX) \ 4198 PARSE_OPTION_WITH_MARSHALLING( \ 4199 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4200 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4201 #include "clang/Driver/Options.inc" 4202 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4203 4204 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4205 Args.hasArg(OPT_pch_through_hdrstop_use); 4206 4207 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4208 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4209 4210 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4211 StringRef Value(A->getValue()); 4212 size_t Comma = Value.find(','); 4213 unsigned Bytes = 0; 4214 unsigned EndOfLine = 0; 4215 4216 if (Comma == StringRef::npos || 4217 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4218 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4219 Diags.Report(diag::err_drv_preamble_format); 4220 else { 4221 Opts.PrecompiledPreambleBytes.first = Bytes; 4222 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4223 } 4224 } 4225 4226 // Add the __CET__ macro if a CFProtection option is set. 4227 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4228 StringRef Name = A->getValue(); 4229 if (Name == "branch") 4230 Opts.addMacroDef("__CET__=1"); 4231 else if (Name == "return") 4232 Opts.addMacroDef("__CET__=2"); 4233 else if (Name == "full") 4234 Opts.addMacroDef("__CET__=3"); 4235 } 4236 4237 // Add macros from the command line. 4238 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4239 if (A->getOption().matches(OPT_D)) 4240 Opts.addMacroDef(A->getValue()); 4241 else 4242 Opts.addMacroUndef(A->getValue()); 4243 } 4244 4245 // Add the ordered list of -includes. 4246 for (const auto *A : Args.filtered(OPT_include)) 4247 Opts.Includes.emplace_back(A->getValue()); 4248 4249 for (const auto *A : Args.filtered(OPT_chain_include)) 4250 Opts.ChainedIncludes.emplace_back(A->getValue()); 4251 4252 for (const auto *A : Args.filtered(OPT_remap_file)) { 4253 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4254 4255 if (Split.second.empty()) { 4256 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4257 continue; 4258 } 4259 4260 Opts.addRemappedFile(Split.first, Split.second); 4261 } 4262 4263 // Always avoid lexing editor placeholders when we're just running the 4264 // preprocessor as we never want to emit the 4265 // "editor placeholder in source file" error in PP only mode. 4266 if (isStrictlyPreprocessorAction(Action)) 4267 Opts.LexEditorPlaceholders = false; 4268 4269 return Diags.getNumErrors() == NumErrorsBefore; 4270 } 4271 4272 static void GeneratePreprocessorOutputArgs( 4273 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4274 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4275 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4276 4277 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4278 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4279 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4280 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4281 MERGER, EXTRACTOR, TABLE_INDEX) \ 4282 GENERATE_OPTION_WITH_MARSHALLING( \ 4283 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4284 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4285 #include "clang/Driver/Options.inc" 4286 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4287 4288 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4289 if (Generate_dM) 4290 GenerateArg(Args, OPT_dM, SA); 4291 if (!Generate_dM && Opts.ShowMacros) 4292 GenerateArg(Args, OPT_dD, SA); 4293 if (Opts.DirectivesOnly) 4294 GenerateArg(Args, OPT_fdirectives_only, SA); 4295 } 4296 4297 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4298 ArgList &Args, DiagnosticsEngine &Diags, 4299 frontend::ActionKind Action) { 4300 unsigned NumErrorsBefore = Diags.getNumErrors(); 4301 4302 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4303 4304 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4305 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4306 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4307 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4308 MERGER, EXTRACTOR, TABLE_INDEX) \ 4309 PARSE_OPTION_WITH_MARSHALLING( \ 4310 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4311 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4312 #include "clang/Driver/Options.inc" 4313 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4314 4315 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4316 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4317 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4318 4319 return Diags.getNumErrors() == NumErrorsBefore; 4320 } 4321 4322 static void GenerateTargetArgs(const TargetOptions &Opts, 4323 SmallVectorImpl<const char *> &Args, 4324 CompilerInvocation::StringAllocator SA) { 4325 const TargetOptions *TargetOpts = &Opts; 4326 #define TARGET_OPTION_WITH_MARSHALLING( \ 4327 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4328 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4329 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4330 MERGER, EXTRACTOR, TABLE_INDEX) \ 4331 GENERATE_OPTION_WITH_MARSHALLING( \ 4332 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4333 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4334 #include "clang/Driver/Options.inc" 4335 #undef TARGET_OPTION_WITH_MARSHALLING 4336 4337 if (!Opts.SDKVersion.empty()) 4338 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4339 SA); 4340 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4341 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4342 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4343 } 4344 4345 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4346 DiagnosticsEngine &Diags) { 4347 unsigned NumErrorsBefore = Diags.getNumErrors(); 4348 4349 TargetOptions *TargetOpts = &Opts; 4350 4351 #define TARGET_OPTION_WITH_MARSHALLING( \ 4352 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4353 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4354 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4355 MERGER, EXTRACTOR, TABLE_INDEX) \ 4356 PARSE_OPTION_WITH_MARSHALLING( \ 4357 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4358 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4359 #include "clang/Driver/Options.inc" 4360 #undef TARGET_OPTION_WITH_MARSHALLING 4361 4362 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4363 llvm::VersionTuple Version; 4364 if (Version.tryParse(A->getValue())) 4365 Diags.Report(diag::err_drv_invalid_value) 4366 << A->getAsString(Args) << A->getValue(); 4367 else 4368 Opts.SDKVersion = Version; 4369 } 4370 if (Arg *A = 4371 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4372 llvm::VersionTuple Version; 4373 if (Version.tryParse(A->getValue())) 4374 Diags.Report(diag::err_drv_invalid_value) 4375 << A->getAsString(Args) << A->getValue(); 4376 else 4377 Opts.DarwinTargetVariantSDKVersion = Version; 4378 } 4379 4380 return Diags.getNumErrors() == NumErrorsBefore; 4381 } 4382 4383 bool CompilerInvocation::CreateFromArgsImpl( 4384 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4385 DiagnosticsEngine &Diags, const char *Argv0) { 4386 unsigned NumErrorsBefore = Diags.getNumErrors(); 4387 4388 // Parse the arguments. 4389 const OptTable &Opts = getDriverOptTable(); 4390 const unsigned IncludedFlagsBitmask = options::CC1Option; 4391 unsigned MissingArgIndex, MissingArgCount; 4392 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4393 MissingArgCount, IncludedFlagsBitmask); 4394 LangOptions &LangOpts = *Res.getLangOpts(); 4395 4396 // Check for missing argument error. 4397 if (MissingArgCount) 4398 Diags.Report(diag::err_drv_missing_argument) 4399 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4400 4401 // Issue errors on unknown arguments. 4402 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4403 auto ArgString = A->getAsString(Args); 4404 std::string Nearest; 4405 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4406 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4407 else 4408 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4409 << ArgString << Nearest; 4410 } 4411 4412 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4413 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4414 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4415 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4416 /*DefaultDiagColor=*/false); 4417 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4418 // FIXME: We shouldn't have to pass the DashX option around here 4419 InputKind DashX = Res.getFrontendOpts().DashX; 4420 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4421 llvm::Triple T(Res.getTargetOpts().Triple); 4422 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4423 Res.getFileSystemOpts().WorkingDir); 4424 4425 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4426 Diags); 4427 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4428 LangOpts.ObjCExceptions = 1; 4429 4430 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4431 if (Warning == "misexpect" && 4432 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4433 Res.getCodeGenOpts().MisExpect = true; 4434 } 4435 } 4436 4437 if (LangOpts.CUDA) { 4438 // During CUDA device-side compilation, the aux triple is the 4439 // triple used for host compilation. 4440 if (LangOpts.CUDAIsDevice) 4441 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4442 } 4443 4444 // Set the triple of the host for OpenMP device compile. 4445 if (LangOpts.OpenMPIsDevice) 4446 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4447 4448 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4449 Res.getFrontendOpts().OutputFile, LangOpts); 4450 4451 // FIXME: Override value name discarding when asan or msan is used because the 4452 // backend passes depend on the name of the alloca in order to print out 4453 // names. 4454 Res.getCodeGenOpts().DiscardValueNames &= 4455 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4456 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4457 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4458 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4459 4460 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4461 Res.getFrontendOpts().ProgramAction, 4462 Res.getFrontendOpts()); 4463 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4464 Res.getFrontendOpts().ProgramAction); 4465 4466 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4467 Res.getFrontendOpts().ProgramAction, 4468 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4469 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4470 Res.getDependencyOutputOpts().Targets.empty()) 4471 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4472 4473 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4474 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4475 !Res.getLangOpts()->Sanitize.empty()) { 4476 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4477 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4478 } 4479 4480 // Store the command-line for using in the CodeView backend. 4481 Res.getCodeGenOpts().Argv0 = Argv0; 4482 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4483 4484 FixupInvocation(Res, Diags, Args, DashX); 4485 4486 return Diags.getNumErrors() == NumErrorsBefore; 4487 } 4488 4489 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4490 ArrayRef<const char *> CommandLineArgs, 4491 DiagnosticsEngine &Diags, 4492 const char *Argv0) { 4493 CompilerInvocation DummyInvocation; 4494 4495 return RoundTrip( 4496 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4497 DiagnosticsEngine &Diags, const char *Argv0) { 4498 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4499 }, 4500 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4501 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4502 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4503 } 4504 4505 std::string CompilerInvocation::getModuleHash() const { 4506 // FIXME: Consider using SHA1 instead of MD5. 4507 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4508 4509 // Note: For QoI reasons, the things we use as a hash here should all be 4510 // dumped via the -module-info flag. 4511 4512 // Start the signature with the compiler version. 4513 HBuilder.add(getClangFullRepositoryVersion()); 4514 4515 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4516 // and getClangFullRepositoryVersion() doesn't include git revision. 4517 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4518 4519 // Extend the signature with the language options 4520 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4521 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4522 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4523 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4524 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4525 #include "clang/Basic/LangOptions.def" 4526 4527 HBuilder.addRange(LangOpts->ModuleFeatures); 4528 4529 HBuilder.add(LangOpts->ObjCRuntime); 4530 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4531 4532 // Extend the signature with the target options. 4533 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4534 TargetOpts->ABI); 4535 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4536 4537 // Extend the signature with preprocessor options. 4538 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4539 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4540 4541 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4542 for (const auto &Macro : getPreprocessorOpts().Macros) { 4543 // If we're supposed to ignore this macro for the purposes of modules, 4544 // don't put it into the hash. 4545 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4546 // Check whether we're ignoring this macro. 4547 StringRef MacroDef = Macro.first; 4548 if (hsOpts.ModulesIgnoreMacros.count( 4549 llvm::CachedHashString(MacroDef.split('=').first))) 4550 continue; 4551 } 4552 4553 HBuilder.add(Macro); 4554 } 4555 4556 // Extend the signature with the sysroot and other header search options. 4557 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4558 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4559 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4560 hsOpts.ModulesValidateDiagnosticOptions); 4561 HBuilder.add(hsOpts.ResourceDir); 4562 4563 if (hsOpts.ModulesStrictContextHash) { 4564 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4565 HBuilder.addRange(hsOpts.UserEntries); 4566 4567 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4568 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4569 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4570 HBuilder.add(diagOpts.get##Name()); 4571 #include "clang/Basic/DiagnosticOptions.def" 4572 #undef DIAGOPT 4573 #undef ENUM_DIAGOPT 4574 } 4575 4576 // Extend the signature with the user build path. 4577 HBuilder.add(hsOpts.ModuleUserBuildPath); 4578 4579 // Extend the signature with the module file extensions. 4580 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4581 ext->hashExtension(HBuilder); 4582 4583 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4584 // affects the debug info in the PCM. 4585 if (getCodeGenOpts().DebugTypeExtRefs) 4586 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4587 4588 // Extend the signature with the enabled sanitizers, if at least one is 4589 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4590 SanitizerSet SanHash = LangOpts->Sanitize; 4591 SanHash.clear(getPPTransparentSanitizers()); 4592 if (!SanHash.empty()) 4593 HBuilder.add(SanHash.Mask); 4594 4595 llvm::MD5::MD5Result Result; 4596 HBuilder.getHasher().final(Result); 4597 uint64_t Hash = Result.high() ^ Result.low(); 4598 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4599 } 4600 4601 void CompilerInvocation::generateCC1CommandLine( 4602 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4603 llvm::Triple T(TargetOpts->Triple); 4604 4605 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4606 GenerateMigratorArgs(MigratorOpts, Args, SA); 4607 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4608 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4609 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4610 GenerateTargetArgs(*TargetOpts, Args, SA); 4611 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4612 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4613 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4614 &*LangOpts); 4615 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4616 CodeGenOpts); 4617 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4618 FrontendOpts.ProgramAction); 4619 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4620 } 4621 4622 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4623 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4624 DiagnosticsEngine &Diags) { 4625 return createVFSFromCompilerInvocation(CI, Diags, 4626 llvm::vfs::getRealFileSystem()); 4627 } 4628 4629 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4630 clang::createVFSFromCompilerInvocation( 4631 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4632 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4633 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4634 return BaseFS; 4635 4636 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4637 // earlier vfs files are on the bottom 4638 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4639 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4640 Result->getBufferForFile(File); 4641 if (!Buffer) { 4642 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4643 continue; 4644 } 4645 4646 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4647 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4648 /*DiagContext*/ nullptr, Result); 4649 if (!FS) { 4650 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4651 continue; 4652 } 4653 4654 Result = FS; 4655 } 4656 return Result; 4657 } 4658