1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <fstream> 98 #include <memory> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 inline Expected<Optional<uint64_t>> parseToleranceOption(StringRef Arg) { 117 int64_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase() 129 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 130 DiagnosticOpts(new DiagnosticOptions()), 131 HeaderSearchOpts(new HeaderSearchOptions()), 132 PreprocessorOpts(new PreprocessorOptions()), 133 AnalyzerOpts(new AnalyzerOptions()) {} 134 135 CompilerInvocationRefBase::CompilerInvocationRefBase( 136 const CompilerInvocationRefBase &X) 137 : LangOpts(new LangOptions(*X.getLangOpts())), 138 TargetOpts(new TargetOptions(X.getTargetOpts())), 139 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 140 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 141 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 142 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 143 144 CompilerInvocationRefBase::CompilerInvocationRefBase( 145 CompilerInvocationRefBase &&X) = default; 146 147 CompilerInvocationRefBase & 148 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 149 LangOpts.swap(X.LangOpts); 150 TargetOpts.swap(X.TargetOpts); 151 DiagnosticOpts.swap(X.DiagnosticOpts); 152 HeaderSearchOpts.swap(X.HeaderSearchOpts); 153 PreprocessorOpts.swap(X.PreprocessorOpts); 154 AnalyzerOpts.swap(X.AnalyzerOpts); 155 return *this; 156 } 157 158 CompilerInvocationRefBase & 159 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 160 161 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 162 163 //===----------------------------------------------------------------------===// 164 // Normalizers 165 //===----------------------------------------------------------------------===// 166 167 #define SIMPLE_ENUM_VALUE_TABLE 168 #include "clang/Driver/Options.inc" 169 #undef SIMPLE_ENUM_VALUE_TABLE 170 171 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 172 unsigned TableIndex, 173 const ArgList &Args, 174 DiagnosticsEngine &Diags) { 175 if (Args.hasArg(Opt)) 176 return true; 177 return None; 178 } 179 180 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 181 const ArgList &Args, 182 DiagnosticsEngine &) { 183 if (Args.hasArg(Opt)) 184 return false; 185 return None; 186 } 187 188 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 189 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 190 /// unnecessary template instantiations and just ignore it with a variadic 191 /// argument. 192 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 193 const char *Spelling, 194 CompilerInvocation::StringAllocator, 195 Option::OptionClass, unsigned, /*T*/...) { 196 Args.push_back(Spelling); 197 } 198 199 template <typename T> static constexpr bool is_uint64_t_convertible() { 200 return !std::is_same<T, uint64_t>::value && 201 llvm::is_integral_or_enum<T>::value; 202 } 203 204 template <typename T, 205 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 206 static auto makeFlagToValueNormalizer(T Value) { 207 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 208 DiagnosticsEngine &) -> Optional<T> { 209 if (Args.hasArg(Opt)) 210 return Value; 211 return None; 212 }; 213 } 214 215 template <typename T, 216 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 217 static auto makeFlagToValueNormalizer(T Value) { 218 return makeFlagToValueNormalizer(uint64_t(Value)); 219 } 220 221 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 222 OptSpecifier OtherOpt) { 223 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 224 const ArgList &Args, 225 DiagnosticsEngine &) -> Optional<bool> { 226 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 227 return A->getOption().matches(Opt) ? Value : OtherValue; 228 } 229 return None; 230 }; 231 } 232 233 static auto makeBooleanOptionDenormalizer(bool Value) { 234 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 235 CompilerInvocation::StringAllocator, Option::OptionClass, 236 unsigned, bool KeyPath) { 237 if (KeyPath == Value) 238 Args.push_back(Spelling); 239 }; 240 } 241 242 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 243 const char *Spelling, 244 CompilerInvocation::StringAllocator SA, 245 Option::OptionClass OptClass, unsigned, 246 const Twine &Value) { 247 switch (OptClass) { 248 case Option::SeparateClass: 249 case Option::JoinedOrSeparateClass: 250 case Option::JoinedAndSeparateClass: 251 Args.push_back(Spelling); 252 Args.push_back(SA(Value)); 253 break; 254 case Option::JoinedClass: 255 case Option::CommaJoinedClass: 256 Args.push_back(SA(Twine(Spelling) + Value)); 257 break; 258 default: 259 llvm_unreachable("Cannot denormalize an option with option class " 260 "incompatible with string denormalization."); 261 } 262 } 263 264 template <typename T> 265 static void 266 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 267 CompilerInvocation::StringAllocator SA, 268 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 269 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 270 } 271 272 static Optional<SimpleEnumValue> 273 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 274 for (int I = 0, E = Table.Size; I != E; ++I) 275 if (Name == Table.Table[I].Name) 276 return Table.Table[I]; 277 278 return None; 279 } 280 281 static Optional<SimpleEnumValue> 282 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 283 for (int I = 0, E = Table.Size; I != E; ++I) 284 if (Value == Table.Table[I].Value) 285 return Table.Table[I]; 286 287 return None; 288 } 289 290 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 291 unsigned TableIndex, 292 const ArgList &Args, 293 DiagnosticsEngine &Diags) { 294 assert(TableIndex < SimpleEnumValueTablesSize); 295 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 296 297 auto *Arg = Args.getLastArg(Opt); 298 if (!Arg) 299 return None; 300 301 StringRef ArgValue = Arg->getValue(); 302 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 303 return MaybeEnumVal->Value; 304 305 Diags.Report(diag::err_drv_invalid_value) 306 << Arg->getAsString(Args) << ArgValue; 307 return None; 308 } 309 310 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 311 const char *Spelling, 312 CompilerInvocation::StringAllocator SA, 313 Option::OptionClass OptClass, 314 unsigned TableIndex, unsigned Value) { 315 assert(TableIndex < SimpleEnumValueTablesSize); 316 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 317 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 318 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 319 MaybeEnumVal->Name); 320 } else { 321 llvm_unreachable("The simple enum value was not correctly defined in " 322 "the tablegen option description"); 323 } 324 } 325 326 template <typename T> 327 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 328 const char *Spelling, 329 CompilerInvocation::StringAllocator SA, 330 Option::OptionClass OptClass, 331 unsigned TableIndex, T Value) { 332 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 333 static_cast<unsigned>(Value)); 334 } 335 336 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 337 const ArgList &Args, 338 DiagnosticsEngine &Diags) { 339 auto *Arg = Args.getLastArg(Opt); 340 if (!Arg) 341 return None; 342 return std::string(Arg->getValue()); 343 } 344 345 template <typename IntTy> 346 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 347 const ArgList &Args, 348 DiagnosticsEngine &Diags) { 349 auto *Arg = Args.getLastArg(Opt); 350 if (!Arg) 351 return None; 352 IntTy Res; 353 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 354 Diags.Report(diag::err_drv_invalid_int_value) 355 << Arg->getAsString(Args) << Arg->getValue(); 356 return None; 357 } 358 return Res; 359 } 360 361 static Optional<std::vector<std::string>> 362 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 363 DiagnosticsEngine &) { 364 return Args.getAllArgValues(Opt); 365 } 366 367 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 368 const char *Spelling, 369 CompilerInvocation::StringAllocator SA, 370 Option::OptionClass OptClass, 371 unsigned TableIndex, 372 const std::vector<std::string> &Values) { 373 switch (OptClass) { 374 case Option::CommaJoinedClass: { 375 std::string CommaJoinedValue; 376 if (!Values.empty()) { 377 CommaJoinedValue.append(Values.front()); 378 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 379 CommaJoinedValue.append(","); 380 CommaJoinedValue.append(Value); 381 } 382 } 383 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 384 TableIndex, CommaJoinedValue); 385 break; 386 } 387 case Option::JoinedClass: 388 case Option::SeparateClass: 389 case Option::JoinedOrSeparateClass: 390 for (const std::string &Value : Values) 391 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 392 break; 393 default: 394 llvm_unreachable("Cannot denormalize an option with option class " 395 "incompatible with string vector denormalization."); 396 } 397 } 398 399 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 400 const ArgList &Args, 401 DiagnosticsEngine &Diags) { 402 auto *Arg = Args.getLastArg(Opt); 403 if (!Arg) 404 return None; 405 return llvm::Triple::normalize(Arg->getValue()); 406 } 407 408 template <typename T, typename U> 409 static T mergeForwardValue(T KeyPath, U Value) { 410 return static_cast<T>(Value); 411 } 412 413 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 414 return KeyPath | Value; 415 } 416 417 template <typename T> static T extractForwardValue(T KeyPath) { 418 return KeyPath; 419 } 420 421 template <typename T, typename U, U Value> 422 static T extractMaskValue(T KeyPath) { 423 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 424 } 425 426 #define PARSE_OPTION_WITH_MARSHALLING( \ 427 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 428 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 429 if ((FLAGS)&options::CC1Option) { \ 430 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 431 if (IMPLIED_CHECK) \ 432 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 433 if (SHOULD_PARSE) \ 434 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 435 KEYPATH = \ 436 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 437 } 438 439 // Capture the extracted value as a lambda argument to avoid potential issues 440 // with lifetime extension of the reference. 441 #define GENERATE_OPTION_WITH_MARSHALLING( \ 442 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 443 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 444 TABLE_INDEX) \ 445 if ((FLAGS)&options::CC1Option) { \ 446 [&](const auto &Extracted) { \ 447 if (ALWAYS_EMIT || \ 448 (Extracted != \ 449 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 450 : (DEFAULT_VALUE)))) \ 451 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 452 TABLE_INDEX, Extracted); \ 453 }(EXTRACTOR(KEYPATH)); \ 454 } 455 456 static StringRef GetInputKindName(InputKind IK); 457 458 static bool FixupInvocation(CompilerInvocation &Invocation, 459 DiagnosticsEngine &Diags, const ArgList &Args, 460 InputKind IK) { 461 unsigned NumErrorsBefore = Diags.getNumErrors(); 462 463 LangOptions &LangOpts = *Invocation.getLangOpts(); 464 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 465 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 466 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 467 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 468 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 469 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 470 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 471 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 472 if (FrontendOpts.ShowStats) 473 CodeGenOpts.ClearASTBeforeBackend = false; 474 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 475 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 476 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 477 LangOpts.CurrentModule = LangOpts.ModuleName; 478 479 llvm::Triple T(TargetOpts.Triple); 480 llvm::Triple::ArchType Arch = T.getArch(); 481 482 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 483 484 if (LangOpts.getExceptionHandling() != 485 LangOptions::ExceptionHandlingKind::None && 486 T.isWindowsMSVCEnvironment()) 487 Diags.Report(diag::err_fe_invalid_exception_model) 488 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 489 490 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 491 Diags.Report(diag::warn_c_kext); 492 493 if (Args.hasArg(OPT_fconcepts_ts)) 494 Diags.Report(diag::warn_fe_concepts_ts_flag); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 514 Diags.Report(diag::warn_ignored_hip_only_option) 515 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 516 517 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 520 521 // When these options are used, the compiler is allowed to apply 522 // optimizations that may affect the final result. For example 523 // (x+y)+z is transformed to x+(y+z) but may not give the same 524 // final result; it's not value safe. 525 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 526 // or NaN. Final result may then differ. An error is issued when the eval 527 // method is set with one of these options. 528 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 529 if (LangOpts.ApproxFunc) 530 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 531 if (LangOpts.AllowFPReassoc) 532 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 533 if (LangOpts.AllowRecip) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 535 } 536 537 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 538 // This option should be deprecated for CL > 1.0 because 539 // this option was added for compatibility with OpenCL 1.0. 540 if (Args.getLastArg(OPT_cl_strict_aliasing) && 541 (LangOpts.getOpenCLCompatibleVersion() > 100)) 542 Diags.Report(diag::warn_option_invalid_ocl_version) 543 << LangOpts.getOpenCLVersionString() 544 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 545 546 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 547 auto DefaultCC = LangOpts.getDefaultCallingConv(); 548 549 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 550 DefaultCC == LangOptions::DCC_StdCall) && 551 Arch != llvm::Triple::x86; 552 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 553 DefaultCC == LangOptions::DCC_RegCall) && 554 !T.isX86(); 555 if (emitError) 556 Diags.Report(diag::err_drv_argument_not_allowed_with) 557 << A->getSpelling() << T.getTriple(); 558 } 559 560 return Diags.getNumErrors() == NumErrorsBefore; 561 } 562 563 //===----------------------------------------------------------------------===// 564 // Deserialization (from args) 565 //===----------------------------------------------------------------------===// 566 567 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 568 DiagnosticsEngine &Diags) { 569 unsigned DefaultOpt = llvm::CodeGenOpt::None; 570 if ((IK.getLanguage() == Language::OpenCL || 571 IK.getLanguage() == Language::OpenCLCXX) && 572 !Args.hasArg(OPT_cl_opt_disable)) 573 DefaultOpt = llvm::CodeGenOpt::Default; 574 575 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 576 if (A->getOption().matches(options::OPT_O0)) 577 return llvm::CodeGenOpt::None; 578 579 if (A->getOption().matches(options::OPT_Ofast)) 580 return llvm::CodeGenOpt::Aggressive; 581 582 assert(A->getOption().matches(options::OPT_O)); 583 584 StringRef S(A->getValue()); 585 if (S == "s" || S == "z") 586 return llvm::CodeGenOpt::Default; 587 588 if (S == "g") 589 return llvm::CodeGenOpt::Less; 590 591 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 592 } 593 594 return DefaultOpt; 595 } 596 597 static unsigned getOptimizationLevelSize(ArgList &Args) { 598 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 599 if (A->getOption().matches(options::OPT_O)) { 600 switch (A->getValue()[0]) { 601 default: 602 return 0; 603 case 's': 604 return 1; 605 case 'z': 606 return 2; 607 } 608 } 609 } 610 return 0; 611 } 612 613 static void GenerateArg(SmallVectorImpl<const char *> &Args, 614 llvm::opt::OptSpecifier OptSpecifier, 615 CompilerInvocation::StringAllocator SA) { 616 Option Opt = getDriverOptTable().getOption(OptSpecifier); 617 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 618 Option::OptionClass::FlagClass, 0); 619 } 620 621 static void GenerateArg(SmallVectorImpl<const char *> &Args, 622 llvm::opt::OptSpecifier OptSpecifier, 623 const Twine &Value, 624 CompilerInvocation::StringAllocator SA) { 625 Option Opt = getDriverOptTable().getOption(OptSpecifier); 626 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 627 Opt.getKind(), 0, Value); 628 } 629 630 // Parse command line arguments into CompilerInvocation. 631 using ParseFn = 632 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 633 DiagnosticsEngine &, const char *)>; 634 635 // Generate command line arguments from CompilerInvocation. 636 using GenerateFn = llvm::function_ref<void( 637 CompilerInvocation &, SmallVectorImpl<const char *> &, 638 CompilerInvocation::StringAllocator)>; 639 640 // May perform round-trip of command line arguments. By default, the round-trip 641 // is enabled in assert builds. This can be overwritten at run-time via the 642 // "-round-trip-args" and "-no-round-trip-args" command line flags. 643 // During round-trip, the command line arguments are parsed into a dummy 644 // instance of CompilerInvocation which is used to generate the command line 645 // arguments again. The real CompilerInvocation instance is then created by 646 // parsing the generated arguments, not the original ones. 647 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 648 CompilerInvocation &RealInvocation, 649 CompilerInvocation &DummyInvocation, 650 ArrayRef<const char *> CommandLineArgs, 651 DiagnosticsEngine &Diags, const char *Argv0) { 652 #ifndef NDEBUG 653 bool DoRoundTripDefault = true; 654 #else 655 bool DoRoundTripDefault = false; 656 #endif 657 658 bool DoRoundTrip = DoRoundTripDefault; 659 for (const auto *Arg : CommandLineArgs) { 660 if (Arg == StringRef("-round-trip-args")) 661 DoRoundTrip = true; 662 if (Arg == StringRef("-no-round-trip-args")) 663 DoRoundTrip = false; 664 } 665 666 // If round-trip was not requested, simply run the parser with the real 667 // invocation diagnostics. 668 if (!DoRoundTrip) 669 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 670 671 // Serializes quoted (and potentially escaped) arguments. 672 auto SerializeArgs = [](ArrayRef<const char *> Args) { 673 std::string Buffer; 674 llvm::raw_string_ostream OS(Buffer); 675 for (const char *Arg : Args) { 676 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 677 OS << ' '; 678 } 679 OS.flush(); 680 return Buffer; 681 }; 682 683 // Setup a dummy DiagnosticsEngine. 684 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 685 DummyDiags.setClient(new TextDiagnosticBuffer()); 686 687 // Run the first parse on the original arguments with the dummy invocation and 688 // diagnostics. 689 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 690 DummyDiags.getNumWarnings() != 0) { 691 // If the first parse did not succeed, it must be user mistake (invalid 692 // command line arguments). We won't be able to generate arguments that 693 // would reproduce the same result. Let's fail again with the real 694 // invocation and diagnostics, so all side-effects of parsing are visible. 695 unsigned NumWarningsBefore = Diags.getNumWarnings(); 696 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 697 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 698 return Success; 699 700 // Parse with original options and diagnostics succeeded even though it 701 // shouldn't have. Something is off. 702 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 703 Diags.Report(diag::note_cc1_round_trip_original) 704 << SerializeArgs(CommandLineArgs); 705 return false; 706 } 707 708 // Setup string allocator. 709 llvm::BumpPtrAllocator Alloc; 710 llvm::StringSaver StringPool(Alloc); 711 auto SA = [&StringPool](const Twine &Arg) { 712 return StringPool.save(Arg).data(); 713 }; 714 715 // Generate arguments from the dummy invocation. If Generate is the 716 // inverse of Parse, the newly generated arguments must have the same 717 // semantics as the original. 718 SmallVector<const char *> GeneratedArgs1; 719 Generate(DummyInvocation, GeneratedArgs1, SA); 720 721 // Run the second parse, now on the generated arguments, and with the real 722 // invocation and diagnostics. The result is what we will end up using for the 723 // rest of compilation, so if Generate is not inverse of Parse, something down 724 // the line will break. 725 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 726 727 // The first parse on original arguments succeeded, but second parse of 728 // generated arguments failed. Something must be wrong with the generator. 729 if (!Success2) { 730 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 1 << SerializeArgs(GeneratedArgs1); 733 return false; 734 } 735 736 // Generate arguments again, this time from the options we will end up using 737 // for the rest of the compilation. 738 SmallVector<const char *> GeneratedArgs2; 739 Generate(RealInvocation, GeneratedArgs2, SA); 740 741 // Compares two lists of generated arguments. 742 auto Equal = [](const ArrayRef<const char *> A, 743 const ArrayRef<const char *> B) { 744 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 745 [](const char *AElem, const char *BElem) { 746 return StringRef(AElem) == StringRef(BElem); 747 }); 748 }; 749 750 // If we generated different arguments from what we assume are two 751 // semantically equivalent CompilerInvocations, the Generate function may 752 // be non-deterministic. 753 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 754 Diags.Report(diag::err_cc1_round_trip_mismatch); 755 Diags.Report(diag::note_cc1_round_trip_generated) 756 << 1 << SerializeArgs(GeneratedArgs1); 757 Diags.Report(diag::note_cc1_round_trip_generated) 758 << 2 << SerializeArgs(GeneratedArgs2); 759 return false; 760 } 761 762 Diags.Report(diag::remark_cc1_round_trip_generated) 763 << 1 << SerializeArgs(GeneratedArgs1); 764 Diags.Report(diag::remark_cc1_round_trip_generated) 765 << 2 << SerializeArgs(GeneratedArgs2); 766 767 return Success2; 768 } 769 770 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 771 OptSpecifier GroupWithValue, 772 std::vector<std::string> &Diagnostics) { 773 for (auto *A : Args.filtered(Group)) { 774 if (A->getOption().getKind() == Option::FlagClass) { 775 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 776 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 777 Diagnostics.push_back( 778 std::string(A->getOption().getName().drop_front(1))); 779 } else if (A->getOption().matches(GroupWithValue)) { 780 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 781 // group. Add only the group name to the diagnostics. 782 Diagnostics.push_back( 783 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 784 } else { 785 // Otherwise, add its value (for OPT_W_Joined and similar). 786 Diagnostics.push_back(A->getValue()); 787 } 788 } 789 } 790 791 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 792 // it won't verify the input. 793 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 794 DiagnosticsEngine *Diags); 795 796 static void getAllNoBuiltinFuncValues(ArgList &Args, 797 std::vector<std::string> &Funcs) { 798 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 799 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 800 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 801 } 802 803 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 804 SmallVectorImpl<const char *> &Args, 805 CompilerInvocation::StringAllocator SA) { 806 const AnalyzerOptions *AnalyzerOpts = &Opts; 807 808 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 809 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 810 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 811 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 812 MERGER, EXTRACTOR, TABLE_INDEX) \ 813 GENERATE_OPTION_WITH_MARSHALLING( \ 814 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 815 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 816 #include "clang/Driver/Options.inc" 817 #undef ANALYZER_OPTION_WITH_MARSHALLING 818 819 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 820 switch (Opts.AnalysisConstraintsOpt) { 821 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 822 case NAME##Model: \ 823 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 824 break; 825 #include "clang/StaticAnalyzer/Core/Analyses.def" 826 default: 827 llvm_unreachable("Tried to generate unknown analysis constraint."); 828 } 829 } 830 831 if (Opts.AnalysisDiagOpt != PD_HTML) { 832 switch (Opts.AnalysisDiagOpt) { 833 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 834 case PD_##NAME: \ 835 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 836 break; 837 #include "clang/StaticAnalyzer/Core/Analyses.def" 838 default: 839 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 840 } 841 } 842 843 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 844 switch (Opts.AnalysisPurgeOpt) { 845 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 846 case NAME: \ 847 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 848 break; 849 #include "clang/StaticAnalyzer/Core/Analyses.def" 850 default: 851 llvm_unreachable("Tried to generate unknown analysis purge mode."); 852 } 853 } 854 855 if (Opts.InliningMode != NoRedundancy) { 856 switch (Opts.InliningMode) { 857 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 858 case NAME: \ 859 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 860 break; 861 #include "clang/StaticAnalyzer/Core/Analyses.def" 862 default: 863 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 864 } 865 } 866 867 for (const auto &CP : Opts.CheckersAndPackages) { 868 OptSpecifier Opt = 869 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 870 GenerateArg(Args, Opt, CP.first, SA); 871 } 872 873 AnalyzerOptions ConfigOpts; 874 parseAnalyzerConfigs(ConfigOpts, nullptr); 875 876 for (const auto &C : Opts.Config) { 877 // Don't generate anything that came from parseAnalyzerConfigs. It would be 878 // redundant and may not be valid on the command line. 879 auto Entry = ConfigOpts.Config.find(C.getKey()); 880 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 881 continue; 882 883 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 884 } 885 886 // Nothing to generate for FullCompilerInvocation. 887 } 888 889 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 890 DiagnosticsEngine &Diags) { 891 unsigned NumErrorsBefore = Diags.getNumErrors(); 892 893 AnalyzerOptions *AnalyzerOpts = &Opts; 894 895 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 896 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 897 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 898 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 899 MERGER, EXTRACTOR, TABLE_INDEX) \ 900 PARSE_OPTION_WITH_MARSHALLING( \ 901 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 902 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 903 #include "clang/Driver/Options.inc" 904 #undef ANALYZER_OPTION_WITH_MARSHALLING 905 906 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) 907 Diags.Report(diag::warn_analyzer_deprecated_option) << "-analyzer-store" 908 << "clang-16"; 909 910 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 911 StringRef Name = A->getValue(); 912 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 913 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 914 .Case(CMDFLAG, NAME##Model) 915 #include "clang/StaticAnalyzer/Core/Analyses.def" 916 .Default(NumConstraints); 917 if (Value == NumConstraints) { 918 Diags.Report(diag::err_drv_invalid_value) 919 << A->getAsString(Args) << Name; 920 } else { 921 #ifndef LLVM_WITH_Z3 922 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 923 Diags.Report(diag::err_analyzer_not_built_with_z3); 924 } 925 #endif // LLVM_WITH_Z3 926 Opts.AnalysisConstraintsOpt = Value; 927 } 928 } 929 930 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 931 StringRef Name = A->getValue(); 932 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 933 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 934 .Case(CMDFLAG, PD_##NAME) 935 #include "clang/StaticAnalyzer/Core/Analyses.def" 936 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 937 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 938 Diags.Report(diag::err_drv_invalid_value) 939 << A->getAsString(Args) << Name; 940 } else { 941 Opts.AnalysisDiagOpt = Value; 942 } 943 } 944 945 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 946 StringRef Name = A->getValue(); 947 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 948 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 949 .Case(CMDFLAG, NAME) 950 #include "clang/StaticAnalyzer/Core/Analyses.def" 951 .Default(NumPurgeModes); 952 if (Value == NumPurgeModes) { 953 Diags.Report(diag::err_drv_invalid_value) 954 << A->getAsString(Args) << Name; 955 } else { 956 Opts.AnalysisPurgeOpt = Value; 957 } 958 } 959 960 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 961 StringRef Name = A->getValue(); 962 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 963 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 964 .Case(CMDFLAG, NAME) 965 #include "clang/StaticAnalyzer/Core/Analyses.def" 966 .Default(NumInliningModes); 967 if (Value == NumInliningModes) { 968 Diags.Report(diag::err_drv_invalid_value) 969 << A->getAsString(Args) << Name; 970 } else { 971 Opts.InliningMode = Value; 972 } 973 } 974 975 Opts.CheckersAndPackages.clear(); 976 for (const Arg *A : 977 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 978 A->claim(); 979 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 980 // We can have a list of comma separated checker names, e.g: 981 // '-analyzer-checker=cocoa,unix' 982 StringRef CheckerAndPackageList = A->getValue(); 983 SmallVector<StringRef, 16> CheckersAndPackages; 984 CheckerAndPackageList.split(CheckersAndPackages, ","); 985 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 986 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 987 IsEnabled); 988 } 989 990 // Go through the analyzer configuration options. 991 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 992 993 // We can have a list of comma separated config names, e.g: 994 // '-analyzer-config key1=val1,key2=val2' 995 StringRef configList = A->getValue(); 996 SmallVector<StringRef, 4> configVals; 997 configList.split(configVals, ","); 998 for (const auto &configVal : configVals) { 999 StringRef key, val; 1000 std::tie(key, val) = configVal.split("="); 1001 if (val.empty()) { 1002 Diags.Report(SourceLocation(), 1003 diag::err_analyzer_config_no_value) << configVal; 1004 break; 1005 } 1006 if (val.contains('=')) { 1007 Diags.Report(SourceLocation(), 1008 diag::err_analyzer_config_multiple_values) 1009 << configVal; 1010 break; 1011 } 1012 1013 // TODO: Check checker options too, possibly in CheckerRegistry. 1014 // Leave unknown non-checker configs unclaimed. 1015 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1016 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1017 Diags.Report(diag::err_analyzer_config_unknown) << key; 1018 continue; 1019 } 1020 1021 A->claim(); 1022 Opts.Config[key] = std::string(val); 1023 } 1024 } 1025 1026 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1027 parseAnalyzerConfigs(Opts, &Diags); 1028 else 1029 parseAnalyzerConfigs(Opts, nullptr); 1030 1031 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1032 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1033 if (i != 0) 1034 os << " "; 1035 os << Args.getArgString(i); 1036 } 1037 os.flush(); 1038 1039 return Diags.getNumErrors() == NumErrorsBefore; 1040 } 1041 1042 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1043 StringRef OptionName, StringRef DefaultVal) { 1044 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1045 } 1046 1047 static void initOption(AnalyzerOptions::ConfigTable &Config, 1048 DiagnosticsEngine *Diags, 1049 StringRef &OptionField, StringRef Name, 1050 StringRef DefaultVal) { 1051 // String options may be known to invalid (e.g. if the expected string is a 1052 // file name, but the file does not exist), those will have to be checked in 1053 // parseConfigs. 1054 OptionField = getStringOption(Config, Name, DefaultVal); 1055 } 1056 1057 static void initOption(AnalyzerOptions::ConfigTable &Config, 1058 DiagnosticsEngine *Diags, 1059 bool &OptionField, StringRef Name, bool DefaultVal) { 1060 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1061 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1062 .Case("true", true) 1063 .Case("false", false) 1064 .Default(None); 1065 1066 if (!PossiblyInvalidVal) { 1067 if (Diags) 1068 Diags->Report(diag::err_analyzer_config_invalid_input) 1069 << Name << "a boolean"; 1070 else 1071 OptionField = DefaultVal; 1072 } else 1073 OptionField = PossiblyInvalidVal.getValue(); 1074 } 1075 1076 static void initOption(AnalyzerOptions::ConfigTable &Config, 1077 DiagnosticsEngine *Diags, 1078 unsigned &OptionField, StringRef Name, 1079 unsigned DefaultVal) { 1080 1081 OptionField = DefaultVal; 1082 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1083 .getAsInteger(0, OptionField); 1084 if (Diags && HasFailed) 1085 Diags->Report(diag::err_analyzer_config_invalid_input) 1086 << Name << "an unsigned"; 1087 } 1088 1089 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1090 DiagnosticsEngine *Diags) { 1091 // TODO: There's no need to store the entire configtable, it'd be plenty 1092 // enough to store checker options. 1093 1094 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1095 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1096 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1097 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1098 1099 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1100 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1101 1102 #define ANALYZER_OPTION(...) 1103 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1104 SHALLOW_VAL, DEEP_VAL) \ 1105 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1106 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1107 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1108 1109 // At this point, AnalyzerOptions is configured. Let's validate some options. 1110 1111 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1112 // The current approach only validates the registered checkers which does not 1113 // contain the runtime enabled checkers and optimally we would validate both. 1114 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1115 std::vector<StringRef> Checkers = 1116 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1117 std::vector<StringRef> Packages = 1118 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1119 1120 SmallVector<StringRef, 16> CheckersAndPackages; 1121 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1122 1123 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1124 if (Diags) { 1125 bool IsChecker = CheckerOrPackage.contains('.'); 1126 bool IsValidName = IsChecker 1127 ? llvm::is_contained(Checkers, CheckerOrPackage) 1128 : llvm::is_contained(Packages, CheckerOrPackage); 1129 1130 if (!IsValidName) 1131 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1132 << CheckerOrPackage; 1133 } 1134 1135 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1136 } 1137 } 1138 1139 if (!Diags) 1140 return; 1141 1142 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1143 Diags->Report(diag::err_analyzer_config_invalid_input) 1144 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1145 1146 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1147 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1148 << "a filename"; 1149 1150 if (!AnOpts.ModelPath.empty() && 1151 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1152 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1153 << "a filename"; 1154 } 1155 1156 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1157 static void 1158 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1159 CompilerInvocation::StringAllocator SA, 1160 OptSpecifier OptEQ, StringRef Name, 1161 const CodeGenOptions::OptRemark &Remark) { 1162 if (Remark.hasValidPattern()) { 1163 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1164 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1165 GenerateArg(Args, OPT_R_Joined, Name, SA); 1166 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1167 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1168 } 1169 } 1170 1171 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1172 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1173 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1174 static CodeGenOptions::OptRemark 1175 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1176 OptSpecifier OptEQ, StringRef Name) { 1177 CodeGenOptions::OptRemark Result; 1178 1179 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1180 StringRef Pattern) { 1181 Result.Pattern = Pattern.str(); 1182 1183 std::string RegexError; 1184 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1185 if (!Result.Regex->isValid(RegexError)) { 1186 Diags.Report(diag::err_drv_optimization_remark_pattern) 1187 << RegexError << A->getAsString(Args); 1188 return false; 1189 } 1190 1191 return true; 1192 }; 1193 1194 for (Arg *A : Args) { 1195 if (A->getOption().matches(OPT_R_Joined)) { 1196 StringRef Value = A->getValue(); 1197 1198 if (Value == Name) 1199 Result.Kind = CodeGenOptions::RK_Enabled; 1200 else if (Value == "everything") 1201 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1202 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1203 Result.Kind = CodeGenOptions::RK_Disabled; 1204 else if (Value == "no-everything") 1205 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1206 else 1207 continue; 1208 1209 if (Result.Kind == CodeGenOptions::RK_Disabled || 1210 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1211 Result.Pattern = ""; 1212 Result.Regex = nullptr; 1213 } else { 1214 InitializeResultPattern(A, ".*"); 1215 } 1216 } else if (A->getOption().matches(OptEQ)) { 1217 Result.Kind = CodeGenOptions::RK_WithPattern; 1218 if (!InitializeResultPattern(A, A->getValue())) 1219 return CodeGenOptions::OptRemark(); 1220 } 1221 } 1222 1223 return Result; 1224 } 1225 1226 static bool parseDiagnosticLevelMask(StringRef FlagName, 1227 const std::vector<std::string> &Levels, 1228 DiagnosticsEngine &Diags, 1229 DiagnosticLevelMask &M) { 1230 bool Success = true; 1231 for (const auto &Level : Levels) { 1232 DiagnosticLevelMask const PM = 1233 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1234 .Case("note", DiagnosticLevelMask::Note) 1235 .Case("remark", DiagnosticLevelMask::Remark) 1236 .Case("warning", DiagnosticLevelMask::Warning) 1237 .Case("error", DiagnosticLevelMask::Error) 1238 .Default(DiagnosticLevelMask::None); 1239 if (PM == DiagnosticLevelMask::None) { 1240 Success = false; 1241 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1242 } 1243 M = M | PM; 1244 } 1245 return Success; 1246 } 1247 1248 static void parseSanitizerKinds(StringRef FlagName, 1249 const std::vector<std::string> &Sanitizers, 1250 DiagnosticsEngine &Diags, SanitizerSet &S) { 1251 for (const auto &Sanitizer : Sanitizers) { 1252 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1253 if (K == SanitizerMask()) 1254 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1255 else 1256 S.set(K, true); 1257 } 1258 } 1259 1260 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1261 SmallVector<StringRef, 4> Values; 1262 serializeSanitizerSet(S, Values); 1263 return Values; 1264 } 1265 1266 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1267 ArgList &Args, DiagnosticsEngine &D, 1268 XRayInstrSet &S) { 1269 llvm::SmallVector<StringRef, 2> BundleParts; 1270 llvm::SplitString(Bundle, BundleParts, ","); 1271 for (const auto &B : BundleParts) { 1272 auto Mask = parseXRayInstrValue(B); 1273 if (Mask == XRayInstrKind::None) 1274 if (B != "none") 1275 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1276 else 1277 S.Mask = Mask; 1278 else if (Mask == XRayInstrKind::All) 1279 S.Mask = Mask; 1280 else 1281 S.set(Mask, true); 1282 } 1283 } 1284 1285 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1286 llvm::SmallVector<StringRef, 2> BundleParts; 1287 serializeXRayInstrValue(S, BundleParts); 1288 std::string Buffer; 1289 llvm::raw_string_ostream OS(Buffer); 1290 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1291 return Buffer; 1292 } 1293 1294 // Set the profile kind using fprofile-instrument-use-path. 1295 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1296 const Twine &ProfileName) { 1297 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1298 // In error, return silently and let Clang PGOUse report the error message. 1299 if (auto E = ReaderOrErr.takeError()) { 1300 llvm::consumeError(std::move(E)); 1301 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1302 return; 1303 } 1304 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1305 std::move(ReaderOrErr.get()); 1306 if (PGOReader->isIRLevelProfile()) { 1307 if (PGOReader->hasCSIRLevelProfile()) 1308 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1309 else 1310 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1311 } else 1312 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1313 } 1314 1315 void CompilerInvocation::GenerateCodeGenArgs( 1316 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1317 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1318 const LangOptions *LangOpts) { 1319 const CodeGenOptions &CodeGenOpts = Opts; 1320 1321 if (Opts.OptimizationLevel == 0) 1322 GenerateArg(Args, OPT_O0, SA); 1323 else 1324 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1325 1326 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1327 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1328 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1329 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1330 MERGER, EXTRACTOR, TABLE_INDEX) \ 1331 GENERATE_OPTION_WITH_MARSHALLING( \ 1332 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1333 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1334 #include "clang/Driver/Options.inc" 1335 #undef CODEGEN_OPTION_WITH_MARSHALLING 1336 1337 if (Opts.OptimizationLevel > 0) { 1338 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1339 GenerateArg(Args, OPT_finline_functions, SA); 1340 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1341 GenerateArg(Args, OPT_finline_hint_functions, SA); 1342 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1343 GenerateArg(Args, OPT_fno_inline, SA); 1344 } 1345 1346 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1347 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1348 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1349 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1350 1351 Optional<StringRef> DebugInfoVal; 1352 switch (Opts.DebugInfo) { 1353 case codegenoptions::DebugLineTablesOnly: 1354 DebugInfoVal = "line-tables-only"; 1355 break; 1356 case codegenoptions::DebugDirectivesOnly: 1357 DebugInfoVal = "line-directives-only"; 1358 break; 1359 case codegenoptions::DebugInfoConstructor: 1360 DebugInfoVal = "constructor"; 1361 break; 1362 case codegenoptions::LimitedDebugInfo: 1363 DebugInfoVal = "limited"; 1364 break; 1365 case codegenoptions::FullDebugInfo: 1366 DebugInfoVal = "standalone"; 1367 break; 1368 case codegenoptions::UnusedTypeInfo: 1369 DebugInfoVal = "unused-types"; 1370 break; 1371 case codegenoptions::NoDebugInfo: // default value 1372 DebugInfoVal = None; 1373 break; 1374 case codegenoptions::LocTrackingOnly: // implied value 1375 DebugInfoVal = None; 1376 break; 1377 } 1378 if (DebugInfoVal) 1379 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1380 1381 for (const auto &Prefix : Opts.DebugPrefixMap) 1382 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1383 Prefix.first + "=" + Prefix.second, SA); 1384 1385 for (const auto &Prefix : Opts.CoveragePrefixMap) 1386 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1387 Prefix.first + "=" + Prefix.second, SA); 1388 1389 if (Opts.NewStructPathTBAA) 1390 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1391 1392 if (Opts.OptimizeSize == 1) 1393 GenerateArg(Args, OPT_O, "s", SA); 1394 else if (Opts.OptimizeSize == 2) 1395 GenerateArg(Args, OPT_O, "z", SA); 1396 1397 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1398 // -ffreestanding. We'll consider that when generating them. 1399 1400 // NoBuiltinFuncs are generated by LangOptions. 1401 1402 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1403 GenerateArg(Args, OPT_funroll_loops, SA); 1404 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1405 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1406 1407 if (!Opts.BinutilsVersion.empty()) 1408 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1409 1410 if (Opts.DebugNameTable == 1411 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1412 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1413 else if (Opts.DebugNameTable == 1414 static_cast<unsigned>( 1415 llvm::DICompileUnit::DebugNameTableKind::Default)) 1416 GenerateArg(Args, OPT_gpubnames, SA); 1417 1418 auto TNK = Opts.getDebugSimpleTemplateNames(); 1419 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1420 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1421 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1422 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1423 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1424 } 1425 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1426 // it or PGOUseInstrumentor. 1427 1428 if (Opts.TimePasses) { 1429 if (Opts.TimePassesPerRun) 1430 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1431 else 1432 GenerateArg(Args, OPT_ftime_report, SA); 1433 } 1434 1435 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1436 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1437 1438 if (Opts.PrepareForThinLTO) 1439 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1440 1441 if (!Opts.ThinLTOIndexFile.empty()) 1442 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1443 1444 if (Opts.SaveTempsFilePrefix == OutputFile) 1445 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1446 1447 StringRef MemProfileBasename("memprof.profraw"); 1448 if (!Opts.MemoryProfileOutput.empty()) { 1449 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1450 GenerateArg(Args, OPT_fmemory_profile, SA); 1451 } else { 1452 size_t ArgLength = 1453 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1454 GenerateArg(Args, OPT_fmemory_profile_EQ, 1455 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1456 } 1457 } 1458 1459 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1460 GenerateArg(Args, OPT_coverage_version_EQ, 1461 StringRef(Opts.CoverageVersion, 4), SA); 1462 1463 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1464 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1465 // won't be generated.) 1466 1467 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1468 std::string InstrBundle = 1469 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1470 if (!InstrBundle.empty()) 1471 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1472 } 1473 1474 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1475 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1476 else if (Opts.CFProtectionReturn) 1477 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1478 else if (Opts.CFProtectionBranch) 1479 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1480 1481 if (Opts.IBTSeal) 1482 GenerateArg(Args, OPT_mibt_seal, SA); 1483 1484 for (const auto &F : Opts.LinkBitcodeFiles) { 1485 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1486 F.PropagateAttrs && F.Internalize; 1487 GenerateArg(Args, 1488 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1489 F.Filename, SA); 1490 } 1491 1492 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1493 // That would make it easy to generate the option only **once** if it was 1494 // explicitly set to non-default value. 1495 if (Opts.ExplicitEmulatedTLS) { 1496 GenerateArg( 1497 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1498 } 1499 1500 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1501 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1502 1503 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1504 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1505 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1506 SA); 1507 1508 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1509 OptSpecifier Opt = 1510 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1511 GenerateArg(Args, Opt, SA); 1512 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1513 OptSpecifier Opt = 1514 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1515 GenerateArg(Args, Opt, SA); 1516 } 1517 1518 if (Opts.EnableAIXExtendedAltivecABI) 1519 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1520 1521 if (!Opts.OptRecordPasses.empty()) 1522 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1523 1524 if (!Opts.OptRecordFormat.empty()) 1525 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1526 1527 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1528 Opts.OptimizationRemark); 1529 1530 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1531 Opts.OptimizationRemarkMissed); 1532 1533 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1534 Opts.OptimizationRemarkAnalysis); 1535 1536 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1537 Opts.DiagnosticsHotnessThreshold 1538 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1539 : "auto", 1540 SA); 1541 1542 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1543 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1544 1545 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1546 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1547 1548 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1549 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1550 1551 if (!Opts.EmitVersionIdentMetadata) 1552 GenerateArg(Args, OPT_Qn, SA); 1553 1554 switch (Opts.FiniteLoops) { 1555 case CodeGenOptions::FiniteLoopsKind::Language: 1556 break; 1557 case CodeGenOptions::FiniteLoopsKind::Always: 1558 GenerateArg(Args, OPT_ffinite_loops, SA); 1559 break; 1560 case CodeGenOptions::FiniteLoopsKind::Never: 1561 GenerateArg(Args, OPT_fno_finite_loops, SA); 1562 break; 1563 } 1564 } 1565 1566 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1567 InputKind IK, 1568 DiagnosticsEngine &Diags, 1569 const llvm::Triple &T, 1570 const std::string &OutputFile, 1571 const LangOptions &LangOptsRef) { 1572 unsigned NumErrorsBefore = Diags.getNumErrors(); 1573 1574 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1575 // TODO: This could be done in Driver 1576 unsigned MaxOptLevel = 3; 1577 if (OptimizationLevel > MaxOptLevel) { 1578 // If the optimization level is not supported, fall back on the default 1579 // optimization 1580 Diags.Report(diag::warn_drv_optimization_value) 1581 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1582 OptimizationLevel = MaxOptLevel; 1583 } 1584 Opts.OptimizationLevel = OptimizationLevel; 1585 1586 // The key paths of codegen options defined in Options.td start with 1587 // "CodeGenOpts.". Let's provide the expected variable name and type. 1588 CodeGenOptions &CodeGenOpts = Opts; 1589 // Some codegen options depend on language options. Let's provide the expected 1590 // variable name and type. 1591 const LangOptions *LangOpts = &LangOptsRef; 1592 1593 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1594 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1595 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1596 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1597 MERGER, EXTRACTOR, TABLE_INDEX) \ 1598 PARSE_OPTION_WITH_MARSHALLING( \ 1599 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1600 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1601 #include "clang/Driver/Options.inc" 1602 #undef CODEGEN_OPTION_WITH_MARSHALLING 1603 1604 // At O0 we want to fully disable inlining outside of cases marked with 1605 // 'alwaysinline' that are required for correctness. 1606 if (Opts.OptimizationLevel == 0) { 1607 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1608 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1609 options::OPT_finline_hint_functions, 1610 options::OPT_fno_inline_functions, 1611 options::OPT_fno_inline)) { 1612 // Explicit inlining flags can disable some or all inlining even at 1613 // optimization levels above zero. 1614 if (A->getOption().matches(options::OPT_finline_functions)) 1615 Opts.setInlining(CodeGenOptions::NormalInlining); 1616 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1617 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1618 else 1619 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1620 } else { 1621 Opts.setInlining(CodeGenOptions::NormalInlining); 1622 } 1623 1624 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1625 // -fdirect-access-external-data. 1626 Opts.DirectAccessExternalData = 1627 Args.hasArg(OPT_fdirect_access_external_data) || 1628 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1629 LangOpts->PICLevel == 0); 1630 1631 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1632 unsigned Val = 1633 llvm::StringSwitch<unsigned>(A->getValue()) 1634 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1635 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1636 .Case("constructor", codegenoptions::DebugInfoConstructor) 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 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1649 // constructor homing, and vice versa for -fno-use-ctor-homing. 1650 if (const Arg *A = 1651 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1652 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1653 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1654 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1655 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1656 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1657 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1658 } 1659 1660 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1661 auto Split = StringRef(Arg).split('='); 1662 Opts.DebugPrefixMap.insert( 1663 {std::string(Split.first), std::string(Split.second)}); 1664 } 1665 1666 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1667 auto Split = StringRef(Arg).split('='); 1668 Opts.CoveragePrefixMap.insert( 1669 {std::string(Split.first), std::string(Split.second)}); 1670 } 1671 1672 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1673 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1674 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1675 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1676 1677 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1678 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1679 Opts.EmitCallSiteInfo = true; 1680 1681 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1682 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1683 << Opts.DIBugsReportFilePath; 1684 Opts.DIBugsReportFilePath = ""; 1685 } 1686 1687 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1688 Args.hasArg(OPT_new_struct_path_tbaa); 1689 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1690 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1691 if (Opts.SimplifyLibCalls) 1692 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1693 Opts.UnrollLoops = 1694 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1695 (Opts.OptimizationLevel > 1)); 1696 Opts.BinutilsVersion = 1697 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1698 1699 Opts.DebugNameTable = static_cast<unsigned>( 1700 Args.hasArg(OPT_ggnu_pubnames) 1701 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1702 : Args.hasArg(OPT_gpubnames) 1703 ? llvm::DICompileUnit::DebugNameTableKind::Default 1704 : llvm::DICompileUnit::DebugNameTableKind::None); 1705 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1706 StringRef Value = A->getValue(); 1707 if (Value != "simple" && Value != "mangled") 1708 Diags.Report(diag::err_drv_unsupported_option_argument) 1709 << A->getOption().getName() << A->getValue(); 1710 Opts.setDebugSimpleTemplateNames( 1711 StringRef(A->getValue()) == "simple" 1712 ? codegenoptions::DebugTemplateNamesKind::Simple 1713 : codegenoptions::DebugTemplateNamesKind::Mangled); 1714 } 1715 1716 if (!Opts.ProfileInstrumentUsePath.empty()) 1717 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1718 1719 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1720 Opts.TimePasses = true; 1721 1722 // -ftime-report= is only for new pass manager. 1723 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1724 StringRef Val = A->getValue(); 1725 if (Val == "per-pass") 1726 Opts.TimePassesPerRun = false; 1727 else if (Val == "per-pass-run") 1728 Opts.TimePassesPerRun = true; 1729 else 1730 Diags.Report(diag::err_drv_invalid_value) 1731 << A->getAsString(Args) << A->getValue(); 1732 } 1733 } 1734 1735 Opts.PrepareForLTO = false; 1736 Opts.PrepareForThinLTO = false; 1737 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1738 Opts.PrepareForLTO = true; 1739 StringRef S = A->getValue(); 1740 if (S == "thin") 1741 Opts.PrepareForThinLTO = true; 1742 else if (S != "full") 1743 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1744 } 1745 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1746 if (IK.getLanguage() != Language::LLVM_IR) 1747 Diags.Report(diag::err_drv_argument_only_allowed_with) 1748 << A->getAsString(Args) << "-x ir"; 1749 Opts.ThinLTOIndexFile = 1750 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1751 } 1752 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1753 Opts.SaveTempsFilePrefix = 1754 llvm::StringSwitch<std::string>(A->getValue()) 1755 .Case("obj", OutputFile) 1756 .Default(llvm::sys::path::filename(OutputFile).str()); 1757 1758 // The memory profile runtime appends the pid to make this name more unique. 1759 const char *MemProfileBasename = "memprof.profraw"; 1760 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1761 SmallString<128> Path( 1762 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1763 llvm::sys::path::append(Path, MemProfileBasename); 1764 Opts.MemoryProfileOutput = std::string(Path); 1765 } else if (Args.hasArg(OPT_fmemory_profile)) 1766 Opts.MemoryProfileOutput = MemProfileBasename; 1767 1768 memcpy(Opts.CoverageVersion, "408*", 4); 1769 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1770 if (Args.hasArg(OPT_coverage_version_EQ)) { 1771 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1772 if (CoverageVersion.size() != 4) { 1773 Diags.Report(diag::err_drv_invalid_value) 1774 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1775 << CoverageVersion; 1776 } else { 1777 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1778 } 1779 } 1780 } 1781 // FIXME: For backend options that are not yet recorded as function 1782 // attributes in the IR, keep track of them so we can embed them in a 1783 // separate data section and use them when building the bitcode. 1784 for (const auto &A : Args) { 1785 // Do not encode output and input. 1786 if (A->getOption().getID() == options::OPT_o || 1787 A->getOption().getID() == options::OPT_INPUT || 1788 A->getOption().getID() == options::OPT_x || 1789 A->getOption().getID() == options::OPT_fembed_bitcode || 1790 A->getOption().matches(options::OPT_W_Group)) 1791 continue; 1792 ArgStringList ASL; 1793 A->render(Args, ASL); 1794 for (const auto &arg : ASL) { 1795 StringRef ArgStr(arg); 1796 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1797 // using \00 to separate each commandline options. 1798 Opts.CmdArgs.push_back('\0'); 1799 } 1800 } 1801 1802 auto XRayInstrBundles = 1803 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1804 if (XRayInstrBundles.empty()) 1805 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1806 else 1807 for (const auto &A : XRayInstrBundles) 1808 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1809 Diags, Opts.XRayInstrumentationBundle); 1810 1811 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1812 StringRef Name = A->getValue(); 1813 if (Name == "full") { 1814 Opts.CFProtectionReturn = 1; 1815 Opts.CFProtectionBranch = 1; 1816 } else if (Name == "return") 1817 Opts.CFProtectionReturn = 1; 1818 else if (Name == "branch") 1819 Opts.CFProtectionBranch = 1; 1820 else if (Name != "none") 1821 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1822 } 1823 1824 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1825 Opts.IBTSeal = 1; 1826 1827 for (auto *A : 1828 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1829 CodeGenOptions::BitcodeFileToLink F; 1830 F.Filename = A->getValue(); 1831 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1832 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1833 // When linking CUDA bitcode, propagate function attributes so that 1834 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1835 F.PropagateAttrs = true; 1836 F.Internalize = true; 1837 } 1838 Opts.LinkBitcodeFiles.push_back(F); 1839 } 1840 1841 if (Args.getLastArg(OPT_femulated_tls) || 1842 Args.getLastArg(OPT_fno_emulated_tls)) { 1843 Opts.ExplicitEmulatedTLS = true; 1844 } 1845 1846 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1847 if (T.isOSAIX()) { 1848 StringRef Name = A->getValue(); 1849 if (Name != "global-dynamic") 1850 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1851 } 1852 } 1853 1854 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1855 StringRef Val = A->getValue(); 1856 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1857 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1858 if (!Opts.FPDenormalMode.isValid()) 1859 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1860 } 1861 1862 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1863 StringRef Val = A->getValue(); 1864 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1865 if (!Opts.FP32DenormalMode.isValid()) 1866 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1867 } 1868 1869 // X86_32 has -fppc-struct-return and -freg-struct-return. 1870 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1871 if (Arg *A = 1872 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1873 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1874 // TODO: We might want to consider enabling these options on AIX in the 1875 // future. 1876 if (T.isOSAIX()) 1877 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1878 << A->getSpelling() << T.str(); 1879 1880 const Option &O = A->getOption(); 1881 if (O.matches(OPT_fpcc_struct_return) || 1882 O.matches(OPT_maix_struct_return)) { 1883 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1884 } else { 1885 assert(O.matches(OPT_freg_struct_return) || 1886 O.matches(OPT_msvr4_struct_return)); 1887 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1888 } 1889 } 1890 1891 if (Arg *A = 1892 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1893 if (!T.isOSAIX()) 1894 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1895 << A->getSpelling() << T.str(); 1896 1897 const Option &O = A->getOption(); 1898 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1899 } 1900 1901 bool NeedLocTracking = false; 1902 1903 if (!Opts.OptRecordFile.empty()) 1904 NeedLocTracking = true; 1905 1906 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1907 Opts.OptRecordPasses = A->getValue(); 1908 NeedLocTracking = true; 1909 } 1910 1911 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1912 Opts.OptRecordFormat = A->getValue(); 1913 NeedLocTracking = true; 1914 } 1915 1916 Opts.OptimizationRemark = 1917 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1918 1919 Opts.OptimizationRemarkMissed = 1920 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1921 1922 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1923 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1924 1925 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1926 Opts.OptimizationRemarkMissed.hasValidPattern() || 1927 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1928 1929 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1930 bool UsingProfile = UsingSampleProfile || 1931 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1932 1933 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1934 // An IR file will contain PGO as metadata 1935 IK.getLanguage() != Language::LLVM_IR) 1936 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1937 << "-fdiagnostics-show-hotness"; 1938 1939 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1940 if (auto *arg = 1941 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1942 auto ResultOrErr = 1943 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1944 1945 if (!ResultOrErr) { 1946 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1947 << "-fdiagnostics-hotness-threshold="; 1948 } else { 1949 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1950 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1951 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1952 !UsingProfile) 1953 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1954 << "-fdiagnostics-hotness-threshold="; 1955 } 1956 } 1957 1958 if (auto *arg = 1959 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1960 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1961 1962 if (!ResultOrErr) { 1963 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1964 << "-fdiagnostics-misexpect-tolerance="; 1965 } else { 1966 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1967 if ((!Opts.DiagnosticsMisExpectTolerance.hasValue() || 1968 Opts.DiagnosticsMisExpectTolerance.getValue() > 0) && 1969 !UsingProfile) 1970 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 1971 << "-fdiagnostics-misexpect-tolerance="; 1972 } 1973 } 1974 1975 // If the user requested to use a sample profile for PGO, then the 1976 // backend will need to track source location information so the profile 1977 // can be incorporated into the IR. 1978 if (UsingSampleProfile) 1979 NeedLocTracking = true; 1980 1981 if (!Opts.StackUsageOutput.empty()) 1982 NeedLocTracking = true; 1983 1984 // If the user requested a flag that requires source locations available in 1985 // the backend, make sure that the backend tracks source location information. 1986 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1987 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1988 1989 // Parse -fsanitize-recover= arguments. 1990 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1991 parseSanitizerKinds("-fsanitize-recover=", 1992 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1993 Opts.SanitizeRecover); 1994 parseSanitizerKinds("-fsanitize-trap=", 1995 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1996 Opts.SanitizeTrap); 1997 1998 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1999 2000 if (Args.hasArg(options::OPT_ffinite_loops)) 2001 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2002 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2003 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2004 2005 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2006 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2007 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2008 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2009 2010 return Diags.getNumErrors() == NumErrorsBefore; 2011 } 2012 2013 static void 2014 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2015 SmallVectorImpl<const char *> &Args, 2016 CompilerInvocation::StringAllocator SA) { 2017 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2018 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2019 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2020 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2021 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2022 MERGER, EXTRACTOR, TABLE_INDEX) \ 2023 GENERATE_OPTION_WITH_MARSHALLING( \ 2024 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2025 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2026 #include "clang/Driver/Options.inc" 2027 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2028 2029 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2030 GenerateArg(Args, OPT_show_includes, SA); 2031 2032 for (const auto &Dep : Opts.ExtraDeps) { 2033 switch (Dep.second) { 2034 case EDK_SanitizeIgnorelist: 2035 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2036 continue; 2037 case EDK_ModuleFile: 2038 // Module file arguments are generated from FrontendOptions and 2039 // HeaderSearchOptions. 2040 continue; 2041 case EDK_ProfileList: 2042 // Profile list arguments are generated from LanguageOptions via the 2043 // marshalling infrastructure. 2044 continue; 2045 case EDK_DepFileEntry: 2046 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2047 break; 2048 } 2049 } 2050 } 2051 2052 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2053 ArgList &Args, DiagnosticsEngine &Diags, 2054 frontend::ActionKind Action, 2055 bool ShowLineMarkers) { 2056 unsigned NumErrorsBefore = Diags.getNumErrors(); 2057 2058 DependencyOutputOptions &DependencyOutputOpts = Opts; 2059 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2060 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2061 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2062 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2063 MERGER, EXTRACTOR, TABLE_INDEX) \ 2064 PARSE_OPTION_WITH_MARSHALLING( \ 2065 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2066 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2067 #include "clang/Driver/Options.inc" 2068 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2069 2070 if (Args.hasArg(OPT_show_includes)) { 2071 // Writing both /showIncludes and preprocessor output to stdout 2072 // would produce interleaved output, so use stderr for /showIncludes. 2073 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2074 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2075 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2076 else 2077 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2078 } else { 2079 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2080 } 2081 2082 // Add sanitizer ignorelists as extra dependencies. 2083 // They won't be discovered by the regular preprocessor, so 2084 // we let make / ninja to know about this implicit dependency. 2085 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2086 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2087 StringRef Val = A->getValue(); 2088 if (!Val.contains('=')) 2089 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2090 } 2091 if (Opts.IncludeSystemHeaders) { 2092 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2093 StringRef Val = A->getValue(); 2094 if (!Val.contains('=')) 2095 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2096 } 2097 } 2098 } 2099 2100 // -fprofile-list= dependencies. 2101 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2102 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2103 2104 // Propagate the extra dependencies. 2105 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2106 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2107 2108 // Only the -fmodule-file=<file> form. 2109 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2110 StringRef Val = A->getValue(); 2111 if (!Val.contains('=')) 2112 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2113 } 2114 2115 return Diags.getNumErrors() == NumErrorsBefore; 2116 } 2117 2118 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2119 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2120 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2121 // Support both clang's -f[no-]color-diagnostics and gcc's 2122 // -f[no-]diagnostics-colors[=never|always|auto]. 2123 enum { 2124 Colors_On, 2125 Colors_Off, 2126 Colors_Auto 2127 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2128 for (auto *A : Args) { 2129 const Option &O = A->getOption(); 2130 if (O.matches(options::OPT_fcolor_diagnostics)) { 2131 ShowColors = Colors_On; 2132 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2133 ShowColors = Colors_Off; 2134 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2135 StringRef Value(A->getValue()); 2136 if (Value == "always") 2137 ShowColors = Colors_On; 2138 else if (Value == "never") 2139 ShowColors = Colors_Off; 2140 else if (Value == "auto") 2141 ShowColors = Colors_Auto; 2142 } 2143 } 2144 return ShowColors == Colors_On || 2145 (ShowColors == Colors_Auto && 2146 llvm::sys::Process::StandardErrHasColors()); 2147 } 2148 2149 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2150 DiagnosticsEngine &Diags) { 2151 bool Success = true; 2152 for (const auto &Prefix : VerifyPrefixes) { 2153 // Every prefix must start with a letter and contain only alphanumeric 2154 // characters, hyphens, and underscores. 2155 auto BadChar = llvm::find_if(Prefix, [](char C) { 2156 return !isAlphanumeric(C) && C != '-' && C != '_'; 2157 }); 2158 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2159 Success = false; 2160 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2161 Diags.Report(diag::note_drv_verify_prefix_spelling); 2162 } 2163 } 2164 return Success; 2165 } 2166 2167 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2168 SmallVectorImpl<const char *> &Args, 2169 CompilerInvocation::StringAllocator SA) { 2170 const FileSystemOptions &FileSystemOpts = Opts; 2171 2172 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2173 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2174 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2175 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2176 MERGER, EXTRACTOR, TABLE_INDEX) \ 2177 GENERATE_OPTION_WITH_MARSHALLING( \ 2178 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2179 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2180 #include "clang/Driver/Options.inc" 2181 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2182 } 2183 2184 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2185 DiagnosticsEngine &Diags) { 2186 unsigned NumErrorsBefore = Diags.getNumErrors(); 2187 2188 FileSystemOptions &FileSystemOpts = Opts; 2189 2190 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2191 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2192 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2193 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2194 MERGER, EXTRACTOR, TABLE_INDEX) \ 2195 PARSE_OPTION_WITH_MARSHALLING( \ 2196 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2197 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2198 #include "clang/Driver/Options.inc" 2199 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2200 2201 return Diags.getNumErrors() == NumErrorsBefore; 2202 } 2203 2204 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2205 SmallVectorImpl<const char *> &Args, 2206 CompilerInvocation::StringAllocator SA) { 2207 const MigratorOptions &MigratorOpts = Opts; 2208 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2209 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2210 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2211 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2212 MERGER, EXTRACTOR, TABLE_INDEX) \ 2213 GENERATE_OPTION_WITH_MARSHALLING( \ 2214 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2215 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2216 #include "clang/Driver/Options.inc" 2217 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2218 } 2219 2220 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2221 DiagnosticsEngine &Diags) { 2222 unsigned NumErrorsBefore = Diags.getNumErrors(); 2223 2224 MigratorOptions &MigratorOpts = Opts; 2225 2226 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2227 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2228 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2229 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2230 MERGER, EXTRACTOR, TABLE_INDEX) \ 2231 PARSE_OPTION_WITH_MARSHALLING( \ 2232 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2233 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2234 #include "clang/Driver/Options.inc" 2235 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2236 2237 return Diags.getNumErrors() == NumErrorsBefore; 2238 } 2239 2240 void CompilerInvocation::GenerateDiagnosticArgs( 2241 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2242 StringAllocator SA, bool DefaultDiagColor) { 2243 const DiagnosticOptions *DiagnosticOpts = &Opts; 2244 #define DIAG_OPTION_WITH_MARSHALLING( \ 2245 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2246 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2247 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2248 MERGER, EXTRACTOR, TABLE_INDEX) \ 2249 GENERATE_OPTION_WITH_MARSHALLING( \ 2250 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2251 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2252 #include "clang/Driver/Options.inc" 2253 #undef DIAG_OPTION_WITH_MARSHALLING 2254 2255 if (!Opts.DiagnosticSerializationFile.empty()) 2256 GenerateArg(Args, OPT_diagnostic_serialized_file, 2257 Opts.DiagnosticSerializationFile, SA); 2258 2259 if (Opts.ShowColors) 2260 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2261 2262 if (Opts.VerifyDiagnostics && 2263 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2264 GenerateArg(Args, OPT_verify, SA); 2265 2266 for (const auto &Prefix : Opts.VerifyPrefixes) 2267 if (Prefix != "expected") 2268 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2269 2270 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2271 if (VIU == DiagnosticLevelMask::None) { 2272 // This is the default, don't generate anything. 2273 } else if (VIU == DiagnosticLevelMask::All) { 2274 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2275 } else { 2276 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2277 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2278 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2279 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2280 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2281 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2282 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2283 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2284 } 2285 2286 for (const auto &Warning : Opts.Warnings) { 2287 // This option is automatically generated from UndefPrefixes. 2288 if (Warning == "undef-prefix") 2289 continue; 2290 Args.push_back(SA(StringRef("-W") + Warning)); 2291 } 2292 2293 for (const auto &Remark : Opts.Remarks) { 2294 // These arguments are generated from OptimizationRemark fields of 2295 // CodeGenOptions. 2296 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2297 "pass-analysis", "no-pass-analysis", 2298 "pass-missed", "no-pass-missed"}; 2299 if (llvm::is_contained(IgnoredRemarks, Remark)) 2300 continue; 2301 2302 Args.push_back(SA(StringRef("-R") + Remark)); 2303 } 2304 } 2305 2306 std::unique_ptr<DiagnosticOptions> 2307 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2308 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2309 unsigned MissingArgIndex, MissingArgCount; 2310 InputArgList Args = getDriverOptTable().ParseArgs( 2311 Argv.slice(1), MissingArgIndex, MissingArgCount); 2312 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2313 // Any errors that would be diagnosed here will also be diagnosed later, 2314 // when the DiagnosticsEngine actually exists. 2315 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2316 return DiagOpts; 2317 } 2318 2319 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2320 DiagnosticsEngine *Diags, 2321 bool DefaultDiagColor) { 2322 Optional<DiagnosticsEngine> IgnoringDiags; 2323 if (!Diags) { 2324 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2325 new IgnoringDiagConsumer()); 2326 Diags = &*IgnoringDiags; 2327 } 2328 2329 unsigned NumErrorsBefore = Diags->getNumErrors(); 2330 2331 // The key paths of diagnostic options defined in Options.td start with 2332 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2333 DiagnosticOptions *DiagnosticOpts = &Opts; 2334 2335 #define DIAG_OPTION_WITH_MARSHALLING( \ 2336 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2337 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2338 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2339 MERGER, EXTRACTOR, TABLE_INDEX) \ 2340 PARSE_OPTION_WITH_MARSHALLING( \ 2341 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2342 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2343 #include "clang/Driver/Options.inc" 2344 #undef DIAG_OPTION_WITH_MARSHALLING 2345 2346 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2347 2348 if (Arg *A = 2349 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2350 Opts.DiagnosticSerializationFile = A->getValue(); 2351 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2352 2353 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2354 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2355 if (Args.hasArg(OPT_verify)) 2356 Opts.VerifyPrefixes.push_back("expected"); 2357 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2358 // then sort it to prepare for fast lookup using std::binary_search. 2359 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2360 Opts.VerifyDiagnostics = false; 2361 else 2362 llvm::sort(Opts.VerifyPrefixes); 2363 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2364 parseDiagnosticLevelMask( 2365 "-verify-ignore-unexpected=", 2366 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2367 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2368 DiagMask = DiagnosticLevelMask::All; 2369 Opts.setVerifyIgnoreUnexpected(DiagMask); 2370 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2371 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2372 Diags->Report(diag::warn_ignoring_ftabstop_value) 2373 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2374 } 2375 2376 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2377 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2378 2379 return Diags->getNumErrors() == NumErrorsBefore; 2380 } 2381 2382 /// Parse the argument to the -ftest-module-file-extension 2383 /// command-line argument. 2384 /// 2385 /// \returns true on error, false on success. 2386 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2387 std::string &BlockName, 2388 unsigned &MajorVersion, 2389 unsigned &MinorVersion, 2390 bool &Hashed, 2391 std::string &UserInfo) { 2392 SmallVector<StringRef, 5> Args; 2393 Arg.split(Args, ':', 5); 2394 if (Args.size() < 5) 2395 return true; 2396 2397 BlockName = std::string(Args[0]); 2398 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2399 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2400 if (Args[3].getAsInteger(2, Hashed)) return true; 2401 if (Args.size() > 4) 2402 UserInfo = std::string(Args[4]); 2403 return false; 2404 } 2405 2406 /// Return a table that associates command line option specifiers with the 2407 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2408 /// intentionally missing, as this case is handled separately from other 2409 /// frontend options. 2410 static const auto &getFrontendActionTable() { 2411 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2412 {frontend::ASTDeclList, OPT_ast_list}, 2413 2414 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2415 {frontend::ASTDump, OPT_ast_dump_all}, 2416 {frontend::ASTDump, OPT_ast_dump_EQ}, 2417 {frontend::ASTDump, OPT_ast_dump}, 2418 {frontend::ASTDump, OPT_ast_dump_lookups}, 2419 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2420 2421 {frontend::ASTPrint, OPT_ast_print}, 2422 {frontend::ASTView, OPT_ast_view}, 2423 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2424 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2425 {frontend::DumpTokens, OPT_dump_tokens}, 2426 {frontend::EmitAssembly, OPT_S}, 2427 {frontend::EmitBC, OPT_emit_llvm_bc}, 2428 {frontend::EmitHTML, OPT_emit_html}, 2429 {frontend::EmitLLVM, OPT_emit_llvm}, 2430 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2431 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2432 {frontend::EmitObj, OPT_emit_obj}, 2433 {frontend::ExtractAPI, OPT_extract_api}, 2434 2435 {frontend::FixIt, OPT_fixit_EQ}, 2436 {frontend::FixIt, OPT_fixit}, 2437 2438 {frontend::GenerateModule, OPT_emit_module}, 2439 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2440 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2441 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2442 {frontend::GeneratePCH, OPT_emit_pch}, 2443 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2444 {frontend::InitOnly, OPT_init_only}, 2445 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2446 {frontend::ModuleFileInfo, OPT_module_file_info}, 2447 {frontend::VerifyPCH, OPT_verify_pch}, 2448 {frontend::PrintPreamble, OPT_print_preamble}, 2449 {frontend::PrintPreprocessedInput, OPT_E}, 2450 {frontend::TemplightDump, OPT_templight_dump}, 2451 {frontend::RewriteMacros, OPT_rewrite_macros}, 2452 {frontend::RewriteObjC, OPT_rewrite_objc}, 2453 {frontend::RewriteTest, OPT_rewrite_test}, 2454 {frontend::RunAnalysis, OPT_analyze}, 2455 {frontend::MigrateSource, OPT_migrate}, 2456 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2457 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2458 OPT_print_dependency_directives_minimized_source}, 2459 }; 2460 2461 return Table; 2462 } 2463 2464 /// Maps command line option to frontend action. 2465 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2466 for (const auto &ActionOpt : getFrontendActionTable()) 2467 if (ActionOpt.second == Opt.getID()) 2468 return ActionOpt.first; 2469 2470 return None; 2471 } 2472 2473 /// Maps frontend action to command line option. 2474 static Optional<OptSpecifier> 2475 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2476 for (const auto &ActionOpt : getFrontendActionTable()) 2477 if (ActionOpt.first == ProgramAction) 2478 return OptSpecifier(ActionOpt.second); 2479 2480 return None; 2481 } 2482 2483 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2484 SmallVectorImpl<const char *> &Args, 2485 CompilerInvocation::StringAllocator SA, 2486 bool IsHeader) { 2487 const FrontendOptions &FrontendOpts = Opts; 2488 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2489 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2490 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2491 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2492 MERGER, EXTRACTOR, TABLE_INDEX) \ 2493 GENERATE_OPTION_WITH_MARSHALLING( \ 2494 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2495 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2496 #include "clang/Driver/Options.inc" 2497 #undef FRONTEND_OPTION_WITH_MARSHALLING 2498 2499 Optional<OptSpecifier> ProgramActionOpt = 2500 getProgramActionOpt(Opts.ProgramAction); 2501 2502 // Generating a simple flag covers most frontend actions. 2503 std::function<void()> GenerateProgramAction = [&]() { 2504 GenerateArg(Args, *ProgramActionOpt, SA); 2505 }; 2506 2507 if (!ProgramActionOpt) { 2508 // PluginAction is the only program action handled separately. 2509 assert(Opts.ProgramAction == frontend::PluginAction && 2510 "Frontend action without option."); 2511 GenerateProgramAction = [&]() { 2512 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2513 }; 2514 } 2515 2516 // FIXME: Simplify the complex 'AST dump' command line. 2517 if (Opts.ProgramAction == frontend::ASTDump) { 2518 GenerateProgramAction = [&]() { 2519 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2520 // marshalling infrastructure. 2521 2522 if (Opts.ASTDumpFormat != ADOF_Default) { 2523 StringRef Format; 2524 switch (Opts.ASTDumpFormat) { 2525 case ADOF_Default: 2526 llvm_unreachable("Default AST dump format."); 2527 case ADOF_JSON: 2528 Format = "json"; 2529 break; 2530 } 2531 2532 if (Opts.ASTDumpAll) 2533 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2534 if (Opts.ASTDumpDecls) 2535 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2536 } else { 2537 if (Opts.ASTDumpAll) 2538 GenerateArg(Args, OPT_ast_dump_all, SA); 2539 if (Opts.ASTDumpDecls) 2540 GenerateArg(Args, OPT_ast_dump, SA); 2541 } 2542 }; 2543 } 2544 2545 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2546 GenerateProgramAction = [&]() { 2547 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2548 }; 2549 } 2550 2551 GenerateProgramAction(); 2552 2553 for (const auto &PluginArgs : Opts.PluginArgs) { 2554 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2555 const char *Spelling = 2556 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2557 for (const auto &PluginArg : PluginArgs.second) 2558 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2559 } 2560 2561 for (const auto &Ext : Opts.ModuleFileExtensions) 2562 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2563 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2564 2565 if (!Opts.CodeCompletionAt.FileName.empty()) 2566 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2567 SA); 2568 2569 for (const auto &Plugin : Opts.Plugins) 2570 GenerateArg(Args, OPT_load, Plugin, SA); 2571 2572 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2573 2574 for (const auto &ModuleFile : Opts.ModuleFiles) 2575 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2576 2577 if (Opts.AuxTargetCPU.hasValue()) 2578 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2579 2580 if (Opts.AuxTargetFeatures.hasValue()) 2581 for (const auto &Feature : *Opts.AuxTargetFeatures) 2582 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2583 2584 { 2585 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2586 StringRef ModuleMap = 2587 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2588 StringRef HeaderUnit = ""; 2589 switch (Opts.DashX.getHeaderUnitKind()) { 2590 case InputKind::HeaderUnit_None: 2591 break; 2592 case InputKind::HeaderUnit_User: 2593 HeaderUnit = "-user"; 2594 break; 2595 case InputKind::HeaderUnit_System: 2596 HeaderUnit = "-system"; 2597 break; 2598 case InputKind::HeaderUnit_Abs: 2599 HeaderUnit = "-header-unit"; 2600 break; 2601 } 2602 StringRef Header = IsHeader ? "-header" : ""; 2603 2604 StringRef Lang; 2605 switch (Opts.DashX.getLanguage()) { 2606 case Language::C: 2607 Lang = "c"; 2608 break; 2609 case Language::OpenCL: 2610 Lang = "cl"; 2611 break; 2612 case Language::OpenCLCXX: 2613 Lang = "clcpp"; 2614 break; 2615 case Language::CUDA: 2616 Lang = "cuda"; 2617 break; 2618 case Language::HIP: 2619 Lang = "hip"; 2620 break; 2621 case Language::CXX: 2622 Lang = "c++"; 2623 break; 2624 case Language::ObjC: 2625 Lang = "objective-c"; 2626 break; 2627 case Language::ObjCXX: 2628 Lang = "objective-c++"; 2629 break; 2630 case Language::RenderScript: 2631 Lang = "renderscript"; 2632 break; 2633 case Language::Asm: 2634 Lang = "assembler-with-cpp"; 2635 break; 2636 case Language::Unknown: 2637 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2638 "Generating -x argument for unknown language (not precompiled)."); 2639 Lang = "ast"; 2640 break; 2641 case Language::LLVM_IR: 2642 Lang = "ir"; 2643 break; 2644 case Language::HLSL: 2645 Lang = "hlsl"; 2646 break; 2647 } 2648 2649 GenerateArg(Args, OPT_x, 2650 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2651 } 2652 2653 // OPT_INPUT has a unique class, generate it directly. 2654 for (const auto &Input : Opts.Inputs) 2655 Args.push_back(SA(Input.getFile())); 2656 } 2657 2658 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2659 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2660 unsigned NumErrorsBefore = Diags.getNumErrors(); 2661 2662 FrontendOptions &FrontendOpts = Opts; 2663 2664 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2665 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2666 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2667 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2668 MERGER, EXTRACTOR, TABLE_INDEX) \ 2669 PARSE_OPTION_WITH_MARSHALLING( \ 2670 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2671 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2672 #include "clang/Driver/Options.inc" 2673 #undef FRONTEND_OPTION_WITH_MARSHALLING 2674 2675 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2676 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2677 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2678 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2679 assert(ProgramAction && "Option specifier not in Action_Group."); 2680 2681 if (ProgramAction == frontend::ASTDump && 2682 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2683 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2684 .CaseLower("default", ADOF_Default) 2685 .CaseLower("json", ADOF_JSON) 2686 .Default(std::numeric_limits<unsigned>::max()); 2687 2688 if (Val != std::numeric_limits<unsigned>::max()) 2689 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2690 else { 2691 Diags.Report(diag::err_drv_invalid_value) 2692 << A->getAsString(Args) << A->getValue(); 2693 Opts.ASTDumpFormat = ADOF_Default; 2694 } 2695 } 2696 2697 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2698 Opts.FixItSuffix = A->getValue(); 2699 2700 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2701 StringRef ArgStr = 2702 Args.hasArg(OPT_interface_stub_version_EQ) 2703 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2704 : "ifs-v1"; 2705 if (ArgStr == "experimental-yaml-elf-v1" || 2706 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2707 ArgStr == "experimental-tapi-elf-v1") { 2708 std::string ErrorMessage = 2709 "Invalid interface stub format: " + ArgStr.str() + 2710 " is deprecated."; 2711 Diags.Report(diag::err_drv_invalid_value) 2712 << "Must specify a valid interface stub format type, ie: " 2713 "-interface-stub-version=ifs-v1" 2714 << ErrorMessage; 2715 ProgramAction = frontend::ParseSyntaxOnly; 2716 } else if (!ArgStr.startswith("ifs-")) { 2717 std::string ErrorMessage = 2718 "Invalid interface stub format: " + ArgStr.str() + "."; 2719 Diags.Report(diag::err_drv_invalid_value) 2720 << "Must specify a valid interface stub format type, ie: " 2721 "-interface-stub-version=ifs-v1" 2722 << ErrorMessage; 2723 ProgramAction = frontend::ParseSyntaxOnly; 2724 } 2725 } 2726 2727 Opts.ProgramAction = *ProgramAction; 2728 } 2729 2730 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2731 Opts.Plugins.emplace_back(A->getValue(0)); 2732 Opts.ProgramAction = frontend::PluginAction; 2733 Opts.ActionName = A->getValue(); 2734 } 2735 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2736 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2737 2738 for (const std::string &Arg : 2739 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2740 std::string BlockName; 2741 unsigned MajorVersion; 2742 unsigned MinorVersion; 2743 bool Hashed; 2744 std::string UserInfo; 2745 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2746 MinorVersion, Hashed, UserInfo)) { 2747 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2748 2749 continue; 2750 } 2751 2752 // Add the testing module file extension. 2753 Opts.ModuleFileExtensions.push_back( 2754 std::make_shared<TestModuleFileExtension>( 2755 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2756 } 2757 2758 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2759 Opts.CodeCompletionAt = 2760 ParsedSourceLocation::FromString(A->getValue()); 2761 if (Opts.CodeCompletionAt.FileName.empty()) 2762 Diags.Report(diag::err_drv_invalid_value) 2763 << A->getAsString(Args) << A->getValue(); 2764 } 2765 2766 Opts.Plugins = Args.getAllArgValues(OPT_load); 2767 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2768 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2769 // Only the -fmodule-file=<file> form. 2770 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2771 StringRef Val = A->getValue(); 2772 if (!Val.contains('=')) 2773 Opts.ModuleFiles.push_back(std::string(Val)); 2774 } 2775 2776 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2777 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2778 << "-emit-module"; 2779 2780 if (Args.hasArg(OPT_aux_target_cpu)) 2781 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2782 if (Args.hasArg(OPT_aux_target_feature)) 2783 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2784 2785 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2786 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2787 Diags.Report(diag::err_drv_argument_not_allowed_with) 2788 << "ARC migration" << "ObjC migration"; 2789 } 2790 2791 InputKind DashX(Language::Unknown); 2792 if (const Arg *A = Args.getLastArg(OPT_x)) { 2793 StringRef XValue = A->getValue(); 2794 2795 // Parse suffixes: 2796 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2797 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2798 bool Preprocessed = XValue.consume_back("-cpp-output"); 2799 bool ModuleMap = XValue.consume_back("-module-map"); 2800 // Detect and consume the header indicator. 2801 bool IsHeader = 2802 XValue != "precompiled-header" && XValue.consume_back("-header"); 2803 2804 // If we have c++-{user,system}-header, that indicates a header unit input 2805 // likewise, if the user put -fmodule-header together with a header with an 2806 // absolute path (header-unit-header). 2807 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2808 if (IsHeader || Preprocessed) { 2809 if (XValue.consume_back("-header-unit")) 2810 HUK = InputKind::HeaderUnit_Abs; 2811 else if (XValue.consume_back("-system")) 2812 HUK = InputKind::HeaderUnit_System; 2813 else if (XValue.consume_back("-user")) 2814 HUK = InputKind::HeaderUnit_User; 2815 } 2816 2817 // The value set by this processing is an un-preprocessed source which is 2818 // not intended to be a module map or header unit. 2819 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2820 HUK == InputKind::HeaderUnit_None; 2821 2822 // Principal languages. 2823 DashX = llvm::StringSwitch<InputKind>(XValue) 2824 .Case("c", Language::C) 2825 .Case("cl", Language::OpenCL) 2826 .Case("clcpp", Language::OpenCLCXX) 2827 .Case("cuda", Language::CUDA) 2828 .Case("hip", Language::HIP) 2829 .Case("c++", Language::CXX) 2830 .Case("objective-c", Language::ObjC) 2831 .Case("objective-c++", Language::ObjCXX) 2832 .Case("renderscript", Language::RenderScript) 2833 .Case("hlsl", Language::HLSL) 2834 .Default(Language::Unknown); 2835 2836 // "objc[++]-cpp-output" is an acceptable synonym for 2837 // "objective-c[++]-cpp-output". 2838 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2839 HUK == InputKind::HeaderUnit_None) 2840 DashX = llvm::StringSwitch<InputKind>(XValue) 2841 .Case("objc", Language::ObjC) 2842 .Case("objc++", Language::ObjCXX) 2843 .Default(Language::Unknown); 2844 2845 // Some special cases cannot be combined with suffixes. 2846 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2847 HUK == InputKind::HeaderUnit_None) 2848 DashX = llvm::StringSwitch<InputKind>(XValue) 2849 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2850 .Case("assembler-with-cpp", Language::Asm) 2851 .Cases("ast", "pcm", "precompiled-header", 2852 InputKind(Language::Unknown, InputKind::Precompiled)) 2853 .Case("ir", Language::LLVM_IR) 2854 .Default(Language::Unknown); 2855 2856 if (DashX.isUnknown()) 2857 Diags.Report(diag::err_drv_invalid_value) 2858 << A->getAsString(Args) << A->getValue(); 2859 2860 if (Preprocessed) 2861 DashX = DashX.getPreprocessed(); 2862 // A regular header is considered mutually exclusive with a header unit. 2863 if (HUK != InputKind::HeaderUnit_None) { 2864 DashX = DashX.withHeaderUnit(HUK); 2865 IsHeaderFile = true; 2866 } else if (IsHeaderFile) 2867 DashX = DashX.getHeader(); 2868 if (ModuleMap) 2869 DashX = DashX.withFormat(InputKind::ModuleMap); 2870 } 2871 2872 // '-' is the default input if none is given. 2873 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2874 Opts.Inputs.clear(); 2875 if (Inputs.empty()) 2876 Inputs.push_back("-"); 2877 2878 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2879 Inputs.size() > 1) 2880 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2881 2882 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2883 InputKind IK = DashX; 2884 if (IK.isUnknown()) { 2885 IK = FrontendOptions::getInputKindForExtension( 2886 StringRef(Inputs[i]).rsplit('.').second); 2887 // FIXME: Warn on this? 2888 if (IK.isUnknown()) 2889 IK = Language::C; 2890 // FIXME: Remove this hack. 2891 if (i == 0) 2892 DashX = IK; 2893 } 2894 2895 bool IsSystem = false; 2896 2897 // The -emit-module action implicitly takes a module map. 2898 if (Opts.ProgramAction == frontend::GenerateModule && 2899 IK.getFormat() == InputKind::Source) { 2900 IK = IK.withFormat(InputKind::ModuleMap); 2901 IsSystem = Opts.IsSystemModule; 2902 } 2903 2904 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2905 } 2906 2907 Opts.DashX = DashX; 2908 2909 return Diags.getNumErrors() == NumErrorsBefore; 2910 } 2911 2912 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2913 void *MainAddr) { 2914 std::string ClangExecutable = 2915 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2916 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2917 } 2918 2919 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2920 SmallVectorImpl<const char *> &Args, 2921 CompilerInvocation::StringAllocator SA) { 2922 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2923 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2924 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2925 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2926 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2927 MERGER, EXTRACTOR, TABLE_INDEX) \ 2928 GENERATE_OPTION_WITH_MARSHALLING( \ 2929 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2930 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2931 #include "clang/Driver/Options.inc" 2932 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2933 2934 if (Opts.UseLibcxx) 2935 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2936 2937 if (!Opts.ModuleCachePath.empty()) 2938 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2939 2940 for (const auto &File : Opts.PrebuiltModuleFiles) 2941 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2942 2943 for (const auto &Path : Opts.PrebuiltModulePaths) 2944 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2945 2946 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2947 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2948 2949 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2950 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2951 llvm::Optional<bool> IsFramework, 2952 llvm::Optional<bool> IgnoreSysRoot) { 2953 return llvm::is_contained(Groups, Entry.Group) && 2954 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2955 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2956 }; 2957 2958 auto It = Opts.UserEntries.begin(); 2959 auto End = Opts.UserEntries.end(); 2960 2961 // Add -I..., -F..., and -index-header-map options in order. 2962 for (; It < End && 2963 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2964 ++It) { 2965 OptSpecifier Opt = [It, Matches]() { 2966 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2967 return OPT_F; 2968 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2969 return OPT_I; 2970 if (Matches(*It, frontend::Angled, true, true)) 2971 return OPT_F; 2972 if (Matches(*It, frontend::Angled, false, true)) 2973 return OPT_I; 2974 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2975 }(); 2976 2977 if (It->Group == frontend::IndexHeaderMap) 2978 GenerateArg(Args, OPT_index_header_map, SA); 2979 GenerateArg(Args, Opt, It->Path, SA); 2980 }; 2981 2982 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2983 // have already been generated as "-I[xx]yy". If that's the case, their 2984 // position on command line was such that this has no semantic impact on 2985 // include paths. 2986 for (; It < End && 2987 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2988 ++It) { 2989 OptSpecifier Opt = 2990 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2991 GenerateArg(Args, Opt, It->Path, SA); 2992 } 2993 2994 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2995 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2996 // command line was such that this has no semantic impact on include paths. 2997 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2998 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2999 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3000 GenerateArg(Args, OPT_iquote, It->Path, SA); 3001 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3002 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3003 It->Path, SA); 3004 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3005 GenerateArg(Args, OPT_iframework, It->Path, SA); 3006 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3007 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3008 3009 // Add the paths for the various language specific isystem flags. 3010 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3011 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3012 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3013 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3014 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3015 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3016 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3017 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3018 3019 // Add the internal paths from a driver that detects standard include paths. 3020 // Note: Some paths that came from "-internal-isystem" arguments may have 3021 // already been generated as "-isystem". If that's the case, their position on 3022 // command line was such that this has no semantic impact on include paths. 3023 for (; It < End && 3024 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3025 ++It) { 3026 OptSpecifier Opt = It->Group == frontend::System 3027 ? OPT_internal_isystem 3028 : OPT_internal_externc_isystem; 3029 GenerateArg(Args, Opt, It->Path, SA); 3030 } 3031 3032 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3033 3034 // Add the path prefixes which are implicitly treated as being system headers. 3035 for (const auto &P : Opts.SystemHeaderPrefixes) { 3036 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3037 : OPT_no_system_header_prefix; 3038 GenerateArg(Args, Opt, P.Prefix, SA); 3039 } 3040 3041 for (const std::string &F : Opts.VFSOverlayFiles) 3042 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3043 } 3044 3045 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3046 DiagnosticsEngine &Diags, 3047 const std::string &WorkingDir) { 3048 unsigned NumErrorsBefore = Diags.getNumErrors(); 3049 3050 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3051 3052 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3053 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3054 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3055 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3056 MERGER, EXTRACTOR, TABLE_INDEX) \ 3057 PARSE_OPTION_WITH_MARSHALLING( \ 3058 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3059 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3060 #include "clang/Driver/Options.inc" 3061 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3062 3063 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3064 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3065 3066 // Canonicalize -fmodules-cache-path before storing it. 3067 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3068 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3069 if (WorkingDir.empty()) 3070 llvm::sys::fs::make_absolute(P); 3071 else 3072 llvm::sys::fs::make_absolute(WorkingDir, P); 3073 } 3074 llvm::sys::path::remove_dots(P); 3075 Opts.ModuleCachePath = std::string(P.str()); 3076 3077 // Only the -fmodule-file=<name>=<file> form. 3078 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3079 StringRef Val = A->getValue(); 3080 if (Val.contains('=')) { 3081 auto Split = Val.split('='); 3082 Opts.PrebuiltModuleFiles.insert( 3083 {std::string(Split.first), std::string(Split.second)}); 3084 } 3085 } 3086 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3087 Opts.AddPrebuiltModulePath(A->getValue()); 3088 3089 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3090 StringRef MacroDef = A->getValue(); 3091 Opts.ModulesIgnoreMacros.insert( 3092 llvm::CachedHashString(MacroDef.split('=').first)); 3093 } 3094 3095 // Add -I..., -F..., and -index-header-map options in order. 3096 bool IsIndexHeaderMap = false; 3097 bool IsSysrootSpecified = 3098 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3099 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3100 if (A->getOption().matches(OPT_index_header_map)) { 3101 // -index-header-map applies to the next -I or -F. 3102 IsIndexHeaderMap = true; 3103 continue; 3104 } 3105 3106 frontend::IncludeDirGroup Group = 3107 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3108 3109 bool IsFramework = A->getOption().matches(OPT_F); 3110 std::string Path = A->getValue(); 3111 3112 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3113 SmallString<32> Buffer; 3114 llvm::sys::path::append(Buffer, Opts.Sysroot, 3115 llvm::StringRef(A->getValue()).substr(1)); 3116 Path = std::string(Buffer.str()); 3117 } 3118 3119 Opts.AddPath(Path, Group, IsFramework, 3120 /*IgnoreSysroot*/ true); 3121 IsIndexHeaderMap = false; 3122 } 3123 3124 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3125 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3126 for (const auto *A : 3127 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3128 if (A->getOption().matches(OPT_iprefix)) 3129 Prefix = A->getValue(); 3130 else if (A->getOption().matches(OPT_iwithprefix)) 3131 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3132 else 3133 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3134 } 3135 3136 for (const auto *A : Args.filtered(OPT_idirafter)) 3137 Opts.AddPath(A->getValue(), frontend::After, false, true); 3138 for (const auto *A : Args.filtered(OPT_iquote)) 3139 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3140 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3141 Opts.AddPath(A->getValue(), frontend::System, false, 3142 !A->getOption().matches(OPT_iwithsysroot)); 3143 for (const auto *A : Args.filtered(OPT_iframework)) 3144 Opts.AddPath(A->getValue(), frontend::System, true, true); 3145 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3146 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3147 /*IgnoreSysRoot=*/false); 3148 3149 // Add the paths for the various language specific isystem flags. 3150 for (const auto *A : Args.filtered(OPT_c_isystem)) 3151 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3152 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3153 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3154 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3155 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3156 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3157 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3158 3159 // Add the internal paths from a driver that detects standard include paths. 3160 for (const auto *A : 3161 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3162 frontend::IncludeDirGroup Group = frontend::System; 3163 if (A->getOption().matches(OPT_internal_externc_isystem)) 3164 Group = frontend::ExternCSystem; 3165 Opts.AddPath(A->getValue(), Group, false, true); 3166 } 3167 3168 // Add the path prefixes which are implicitly treated as being system headers. 3169 for (const auto *A : 3170 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3171 Opts.AddSystemHeaderPrefix( 3172 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3173 3174 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3175 Opts.AddVFSOverlayFile(A->getValue()); 3176 3177 return Diags.getNumErrors() == NumErrorsBefore; 3178 } 3179 3180 /// Check if input file kind and language standard are compatible. 3181 static bool IsInputCompatibleWithStandard(InputKind IK, 3182 const LangStandard &S) { 3183 switch (IK.getLanguage()) { 3184 case Language::Unknown: 3185 case Language::LLVM_IR: 3186 llvm_unreachable("should not parse language flags for this input"); 3187 3188 case Language::C: 3189 case Language::ObjC: 3190 case Language::RenderScript: 3191 return S.getLanguage() == Language::C; 3192 3193 case Language::OpenCL: 3194 return S.getLanguage() == Language::OpenCL || 3195 S.getLanguage() == Language::OpenCLCXX; 3196 3197 case Language::OpenCLCXX: 3198 return S.getLanguage() == Language::OpenCLCXX; 3199 3200 case Language::CXX: 3201 case Language::ObjCXX: 3202 return S.getLanguage() == Language::CXX; 3203 3204 case Language::CUDA: 3205 // FIXME: What -std= values should be permitted for CUDA compilations? 3206 return S.getLanguage() == Language::CUDA || 3207 S.getLanguage() == Language::CXX; 3208 3209 case Language::HIP: 3210 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3211 3212 case Language::Asm: 3213 // Accept (and ignore) all -std= values. 3214 // FIXME: The -std= value is not ignored; it affects the tokenization 3215 // and preprocessing rules if we're preprocessing this asm input. 3216 return true; 3217 3218 case Language::HLSL: 3219 return S.getLanguage() == Language::HLSL; 3220 } 3221 3222 llvm_unreachable("unexpected input language"); 3223 } 3224 3225 /// Get language name for given input kind. 3226 static StringRef GetInputKindName(InputKind IK) { 3227 switch (IK.getLanguage()) { 3228 case Language::C: 3229 return "C"; 3230 case Language::ObjC: 3231 return "Objective-C"; 3232 case Language::CXX: 3233 return "C++"; 3234 case Language::ObjCXX: 3235 return "Objective-C++"; 3236 case Language::OpenCL: 3237 return "OpenCL"; 3238 case Language::OpenCLCXX: 3239 return "C++ for OpenCL"; 3240 case Language::CUDA: 3241 return "CUDA"; 3242 case Language::RenderScript: 3243 return "RenderScript"; 3244 case Language::HIP: 3245 return "HIP"; 3246 3247 case Language::Asm: 3248 return "Asm"; 3249 case Language::LLVM_IR: 3250 return "LLVM IR"; 3251 3252 case Language::HLSL: 3253 return "HLSL"; 3254 3255 case Language::Unknown: 3256 break; 3257 } 3258 llvm_unreachable("unknown input language"); 3259 } 3260 3261 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3262 SmallVectorImpl<const char *> &Args, 3263 StringAllocator SA, 3264 const llvm::Triple &T, InputKind IK) { 3265 if (IK.getFormat() == InputKind::Precompiled || 3266 IK.getLanguage() == Language::LLVM_IR) { 3267 if (Opts.ObjCAutoRefCount) 3268 GenerateArg(Args, OPT_fobjc_arc, SA); 3269 if (Opts.PICLevel != 0) 3270 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3271 if (Opts.PIE) 3272 GenerateArg(Args, OPT_pic_is_pie, SA); 3273 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3274 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3275 3276 return; 3277 } 3278 3279 OptSpecifier StdOpt; 3280 switch (Opts.LangStd) { 3281 case LangStandard::lang_opencl10: 3282 case LangStandard::lang_opencl11: 3283 case LangStandard::lang_opencl12: 3284 case LangStandard::lang_opencl20: 3285 case LangStandard::lang_opencl30: 3286 case LangStandard::lang_openclcpp10: 3287 case LangStandard::lang_openclcpp2021: 3288 StdOpt = OPT_cl_std_EQ; 3289 break; 3290 default: 3291 StdOpt = OPT_std_EQ; 3292 break; 3293 } 3294 3295 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3296 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3297 3298 if (Opts.IncludeDefaultHeader) 3299 GenerateArg(Args, OPT_finclude_default_header, SA); 3300 if (Opts.DeclareOpenCLBuiltins) 3301 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3302 3303 const LangOptions *LangOpts = &Opts; 3304 3305 #define LANG_OPTION_WITH_MARSHALLING( \ 3306 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3307 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3308 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3309 MERGER, EXTRACTOR, TABLE_INDEX) \ 3310 GENERATE_OPTION_WITH_MARSHALLING( \ 3311 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3312 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3313 #include "clang/Driver/Options.inc" 3314 #undef LANG_OPTION_WITH_MARSHALLING 3315 3316 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3317 3318 if (Opts.ObjC) { 3319 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3320 3321 if (Opts.GC == LangOptions::GCOnly) 3322 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3323 else if (Opts.GC == LangOptions::HybridGC) 3324 GenerateArg(Args, OPT_fobjc_gc, SA); 3325 else if (Opts.ObjCAutoRefCount == 1) 3326 GenerateArg(Args, OPT_fobjc_arc, SA); 3327 3328 if (Opts.ObjCWeakRuntime) 3329 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3330 3331 if (Opts.ObjCWeak) 3332 GenerateArg(Args, OPT_fobjc_weak, SA); 3333 3334 if (Opts.ObjCSubscriptingLegacyRuntime) 3335 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3336 } 3337 3338 if (Opts.GNUCVersion != 0) { 3339 unsigned Major = Opts.GNUCVersion / 100 / 100; 3340 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3341 unsigned Patch = Opts.GNUCVersion % 100; 3342 GenerateArg(Args, OPT_fgnuc_version_EQ, 3343 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3344 } 3345 3346 if (Opts.IgnoreXCOFFVisibility) 3347 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3348 3349 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3350 GenerateArg(Args, OPT_ftrapv, SA); 3351 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3352 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3353 GenerateArg(Args, OPT_fwrapv, SA); 3354 } 3355 3356 if (Opts.MSCompatibilityVersion != 0) { 3357 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3358 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3359 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3360 GenerateArg(Args, OPT_fms_compatibility_version, 3361 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3362 } 3363 3364 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3365 if (!Opts.Trigraphs) 3366 GenerateArg(Args, OPT_fno_trigraphs, SA); 3367 } else { 3368 if (Opts.Trigraphs) 3369 GenerateArg(Args, OPT_ftrigraphs, SA); 3370 } 3371 3372 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3373 GenerateArg(Args, OPT_fblocks, SA); 3374 3375 if (Opts.ConvergentFunctions && 3376 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3377 GenerateArg(Args, OPT_fconvergent_functions, SA); 3378 3379 if (Opts.NoBuiltin && !Opts.Freestanding) 3380 GenerateArg(Args, OPT_fno_builtin, SA); 3381 3382 if (!Opts.NoBuiltin) 3383 for (const auto &Func : Opts.NoBuiltinFuncs) 3384 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3385 3386 if (Opts.LongDoubleSize == 128) 3387 GenerateArg(Args, OPT_mlong_double_128, SA); 3388 else if (Opts.LongDoubleSize == 64) 3389 GenerateArg(Args, OPT_mlong_double_64, SA); 3390 else if (Opts.LongDoubleSize == 80) 3391 GenerateArg(Args, OPT_mlong_double_80, SA); 3392 3393 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3394 3395 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3396 // '-fopenmp-targets='. 3397 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3398 GenerateArg(Args, OPT_fopenmp, SA); 3399 3400 if (Opts.OpenMP != 50) 3401 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3402 3403 if (!Opts.OpenMPUseTLS) 3404 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3405 3406 if (Opts.OpenMPIsDevice) 3407 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3408 3409 if (Opts.OpenMPIRBuilder) 3410 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3411 } 3412 3413 if (Opts.OpenMPSimd) { 3414 GenerateArg(Args, OPT_fopenmp_simd, SA); 3415 3416 if (Opts.OpenMP != 50) 3417 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3418 } 3419 3420 if (Opts.OpenMPThreadSubscription) 3421 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3422 3423 if (Opts.OpenMPTeamSubscription) 3424 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3425 3426 if (Opts.OpenMPTargetDebug != 0) 3427 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3428 Twine(Opts.OpenMPTargetDebug), SA); 3429 3430 if (Opts.OpenMPCUDANumSMs != 0) 3431 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3432 Twine(Opts.OpenMPCUDANumSMs), SA); 3433 3434 if (Opts.OpenMPCUDABlocksPerSM != 0) 3435 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3436 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3437 3438 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3439 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3440 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3441 3442 if (!Opts.OMPTargetTriples.empty()) { 3443 std::string Targets; 3444 llvm::raw_string_ostream OS(Targets); 3445 llvm::interleave( 3446 Opts.OMPTargetTriples, OS, 3447 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3448 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3449 } 3450 3451 if (!Opts.OMPHostIRFile.empty()) 3452 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3453 3454 if (Opts.OpenMPCUDAMode) 3455 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3456 3457 if (Opts.OpenMPCUDAForceFullRuntime) 3458 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3459 3460 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3461 // generated from CodeGenOptions. 3462 3463 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3464 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3465 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3466 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3467 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3468 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3469 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3470 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3471 3472 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3473 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3474 3475 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3476 for (const std::string &F : Opts.NoSanitizeFiles) 3477 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3478 3479 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3480 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3481 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3482 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3483 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3484 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3485 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3486 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3487 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3488 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3489 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3490 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3491 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3492 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3493 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3494 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3495 3496 if (Opts.getSignReturnAddressScope() == 3497 LangOptions::SignReturnAddressScopeKind::All) 3498 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3499 else if (Opts.getSignReturnAddressScope() == 3500 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3501 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3502 3503 if (Opts.getSignReturnAddressKey() == 3504 LangOptions::SignReturnAddressKeyKind::BKey) 3505 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3506 3507 if (Opts.CXXABI) 3508 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3509 SA); 3510 3511 if (Opts.RelativeCXXABIVTables) 3512 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3513 else 3514 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3515 3516 if (Opts.UseTargetPathSeparator) 3517 GenerateArg(Args, OPT_ffile_reproducible, SA); 3518 else 3519 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3520 3521 for (const auto &MP : Opts.MacroPrefixMap) 3522 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3523 3524 if (!Opts.RandstructSeed.empty()) 3525 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3526 } 3527 3528 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3529 InputKind IK, const llvm::Triple &T, 3530 std::vector<std::string> &Includes, 3531 DiagnosticsEngine &Diags) { 3532 unsigned NumErrorsBefore = Diags.getNumErrors(); 3533 3534 if (IK.getFormat() == InputKind::Precompiled || 3535 IK.getLanguage() == Language::LLVM_IR) { 3536 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3537 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3538 // what the input type is. 3539 if (Args.hasArg(OPT_fobjc_arc)) 3540 Opts.ObjCAutoRefCount = 1; 3541 // PICLevel and PIELevel are needed during code generation and this should 3542 // be set regardless of the input type. 3543 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3544 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3545 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3546 Diags, Opts.Sanitize); 3547 3548 return Diags.getNumErrors() == NumErrorsBefore; 3549 } 3550 3551 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3552 // FIXME: Should we really be parsing this for an Language::Asm input? 3553 3554 // FIXME: Cleanup per-file based stuff. 3555 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3556 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3557 LangStd = LangStandard::getLangKind(A->getValue()); 3558 if (LangStd == LangStandard::lang_unspecified) { 3559 Diags.Report(diag::err_drv_invalid_value) 3560 << A->getAsString(Args) << A->getValue(); 3561 // Report supported standards with short description. 3562 for (unsigned KindValue = 0; 3563 KindValue != LangStandard::lang_unspecified; 3564 ++KindValue) { 3565 const LangStandard &Std = LangStandard::getLangStandardForKind( 3566 static_cast<LangStandard::Kind>(KindValue)); 3567 if (IsInputCompatibleWithStandard(IK, Std)) { 3568 auto Diag = Diags.Report(diag::note_drv_use_standard); 3569 Diag << Std.getName() << Std.getDescription(); 3570 unsigned NumAliases = 0; 3571 #define LANGSTANDARD(id, name, lang, desc, features) 3572 #define LANGSTANDARD_ALIAS(id, alias) \ 3573 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3574 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3575 #include "clang/Basic/LangStandards.def" 3576 Diag << NumAliases; 3577 #define LANGSTANDARD(id, name, lang, desc, features) 3578 #define LANGSTANDARD_ALIAS(id, alias) \ 3579 if (KindValue == LangStandard::lang_##id) Diag << alias; 3580 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3581 #include "clang/Basic/LangStandards.def" 3582 } 3583 } 3584 } else { 3585 // Valid standard, check to make sure language and standard are 3586 // compatible. 3587 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3588 if (!IsInputCompatibleWithStandard(IK, Std)) { 3589 Diags.Report(diag::err_drv_argument_not_allowed_with) 3590 << A->getAsString(Args) << GetInputKindName(IK); 3591 } 3592 } 3593 } 3594 3595 // -cl-std only applies for OpenCL language standards. 3596 // Override the -std option in this case. 3597 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3598 LangStandard::Kind OpenCLLangStd 3599 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3600 .Cases("cl", "CL", LangStandard::lang_opencl10) 3601 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3602 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3603 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3604 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3605 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3606 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3607 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3608 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3609 .Default(LangStandard::lang_unspecified); 3610 3611 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3612 Diags.Report(diag::err_drv_invalid_value) 3613 << A->getAsString(Args) << A->getValue(); 3614 } 3615 else 3616 LangStd = OpenCLLangStd; 3617 } 3618 3619 // These need to be parsed now. They are used to set OpenCL defaults. 3620 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3621 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3622 3623 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3624 3625 // The key paths of codegen options defined in Options.td start with 3626 // "LangOpts->". Let's provide the expected variable name and type. 3627 LangOptions *LangOpts = &Opts; 3628 3629 #define LANG_OPTION_WITH_MARSHALLING( \ 3630 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3631 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3632 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3633 MERGER, EXTRACTOR, TABLE_INDEX) \ 3634 PARSE_OPTION_WITH_MARSHALLING( \ 3635 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3636 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3637 #include "clang/Driver/Options.inc" 3638 #undef LANG_OPTION_WITH_MARSHALLING 3639 3640 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3641 StringRef Name = A->getValue(); 3642 if (Name == "full" || Name == "branch") { 3643 Opts.CFProtectionBranch = 1; 3644 } 3645 } 3646 3647 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3648 !Args.hasArg(OPT_sycl_std_EQ)) { 3649 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3650 // provide -sycl-std=, we want to default it to whatever the default SYCL 3651 // version is. I could not find a way to express this with the options 3652 // tablegen because we still want this value to be SYCL_None when the user 3653 // is not in device or host mode. 3654 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3655 } 3656 3657 if (Opts.ObjC) { 3658 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3659 StringRef value = arg->getValue(); 3660 if (Opts.ObjCRuntime.tryParse(value)) 3661 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3662 } 3663 3664 if (Args.hasArg(OPT_fobjc_gc_only)) 3665 Opts.setGC(LangOptions::GCOnly); 3666 else if (Args.hasArg(OPT_fobjc_gc)) 3667 Opts.setGC(LangOptions::HybridGC); 3668 else if (Args.hasArg(OPT_fobjc_arc)) { 3669 Opts.ObjCAutoRefCount = 1; 3670 if (!Opts.ObjCRuntime.allowsARC()) 3671 Diags.Report(diag::err_arc_unsupported_on_runtime); 3672 } 3673 3674 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3675 // whether the feature is actually enabled. This is predominantly 3676 // determined by -fobjc-runtime, but we allow it to be overridden 3677 // from the command line for testing purposes. 3678 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3679 Opts.ObjCWeakRuntime = 1; 3680 else 3681 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3682 3683 // ObjCWeak determines whether __weak is actually enabled. 3684 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3685 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3686 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3687 assert(!Opts.ObjCWeak); 3688 } else if (Opts.getGC() != LangOptions::NonGC) { 3689 Diags.Report(diag::err_objc_weak_with_gc); 3690 } else if (!Opts.ObjCWeakRuntime) { 3691 Diags.Report(diag::err_objc_weak_unsupported); 3692 } else { 3693 Opts.ObjCWeak = 1; 3694 } 3695 } else if (Opts.ObjCAutoRefCount) { 3696 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3697 } 3698 3699 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3700 Opts.ObjCSubscriptingLegacyRuntime = 3701 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3702 } 3703 3704 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3705 // Check that the version has 1 to 3 components and the minor and patch 3706 // versions fit in two decimal digits. 3707 VersionTuple GNUCVer; 3708 bool Invalid = GNUCVer.tryParse(A->getValue()); 3709 unsigned Major = GNUCVer.getMajor(); 3710 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3711 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3712 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3713 Diags.Report(diag::err_drv_invalid_value) 3714 << A->getAsString(Args) << A->getValue(); 3715 } 3716 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3717 } 3718 3719 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3720 Opts.IgnoreXCOFFVisibility = 1; 3721 3722 if (Args.hasArg(OPT_ftrapv)) { 3723 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3724 // Set the handler, if one is specified. 3725 Opts.OverflowHandler = 3726 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3727 } 3728 else if (Args.hasArg(OPT_fwrapv)) 3729 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3730 3731 Opts.MSCompatibilityVersion = 0; 3732 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3733 VersionTuple VT; 3734 if (VT.tryParse(A->getValue())) 3735 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3736 << A->getValue(); 3737 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3738 VT.getMinor().getValueOr(0) * 100000 + 3739 VT.getSubminor().getValueOr(0); 3740 } 3741 3742 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3743 // is specified, or -std is set to a conforming mode. 3744 // Trigraphs are disabled by default in c++1z onwards. 3745 // For z/OS, trigraphs are enabled by default (without regard to the above). 3746 Opts.Trigraphs = 3747 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3748 Opts.Trigraphs = 3749 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3750 3751 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3752 && Opts.OpenCLVersion == 200); 3753 3754 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3755 Opts.SYCLIsDevice || 3756 Args.hasArg(OPT_fconvergent_functions); 3757 3758 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3759 if (!Opts.NoBuiltin) 3760 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3761 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3762 if (A->getOption().matches(options::OPT_mlong_double_64)) 3763 Opts.LongDoubleSize = 64; 3764 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3765 Opts.LongDoubleSize = 80; 3766 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3767 Opts.LongDoubleSize = 128; 3768 else 3769 Opts.LongDoubleSize = 0; 3770 } 3771 if (Opts.FastRelaxedMath) 3772 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3773 3774 llvm::sort(Opts.ModuleFeatures); 3775 3776 // -mrtd option 3777 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3778 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3779 Diags.Report(diag::err_drv_argument_not_allowed_with) 3780 << A->getSpelling() << "-fdefault-calling-conv"; 3781 else { 3782 if (T.getArch() != llvm::Triple::x86) 3783 Diags.Report(diag::err_drv_argument_not_allowed_with) 3784 << A->getSpelling() << T.getTriple(); 3785 else 3786 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3787 } 3788 } 3789 3790 // Check if -fopenmp is specified and set default version to 5.0. 3791 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3792 // Check if -fopenmp-simd is specified. 3793 bool IsSimdSpecified = 3794 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3795 /*Default=*/false); 3796 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3797 Opts.OpenMPUseTLS = 3798 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3799 Opts.OpenMPIsDevice = 3800 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3801 Opts.OpenMPIRBuilder = 3802 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3803 bool IsTargetSpecified = 3804 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3805 3806 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3807 3808 if (Opts.OpenMP || Opts.OpenMPSimd) { 3809 if (int Version = getLastArgIntValue( 3810 Args, OPT_fopenmp_version_EQ, 3811 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3812 Opts.OpenMP = Version; 3813 // Provide diagnostic when a given target is not expected to be an OpenMP 3814 // device or host. 3815 if (!Opts.OpenMPIsDevice) { 3816 switch (T.getArch()) { 3817 default: 3818 break; 3819 // Add unsupported host targets here: 3820 case llvm::Triple::nvptx: 3821 case llvm::Triple::nvptx64: 3822 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3823 break; 3824 } 3825 } 3826 } 3827 3828 // Set the flag to prevent the implementation from emitting device exception 3829 // handling code for those requiring so. 3830 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3831 Opts.OpenCLCPlusPlus) { 3832 3833 Opts.Exceptions = 0; 3834 Opts.CXXExceptions = 0; 3835 } 3836 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3837 Opts.OpenMPCUDANumSMs = 3838 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3839 Opts.OpenMPCUDANumSMs, Diags); 3840 Opts.OpenMPCUDABlocksPerSM = 3841 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3842 Opts.OpenMPCUDABlocksPerSM, Diags); 3843 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3844 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3845 Opts.OpenMPCUDAReductionBufNum, Diags); 3846 } 3847 3848 // Set the value of the debugging flag used in the new offloading device RTL. 3849 // Set either by a specific value or to a default if not specified. 3850 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3851 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3852 Opts.OpenMPTargetDebug = getLastArgIntValue( 3853 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3854 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3855 Opts.OpenMPTargetDebug = 1; 3856 } 3857 3858 if (Opts.OpenMPIsDevice) { 3859 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3860 Opts.OpenMPTeamSubscription = true; 3861 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3862 Opts.OpenMPThreadSubscription = true; 3863 } 3864 3865 // Get the OpenMP target triples if any. 3866 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3867 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3868 auto getArchPtrSize = [](const llvm::Triple &T) { 3869 if (T.isArch16Bit()) 3870 return Arch16Bit; 3871 if (T.isArch32Bit()) 3872 return Arch32Bit; 3873 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3874 return Arch64Bit; 3875 }; 3876 3877 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3878 llvm::Triple TT(A->getValue(i)); 3879 3880 if (TT.getArch() == llvm::Triple::UnknownArch || 3881 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3882 TT.getArch() == llvm::Triple::nvptx || 3883 TT.getArch() == llvm::Triple::nvptx64 || 3884 TT.getArch() == llvm::Triple::amdgcn || 3885 TT.getArch() == llvm::Triple::x86 || 3886 TT.getArch() == llvm::Triple::x86_64)) 3887 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3888 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3889 Diags.Report(diag::err_drv_incompatible_omp_arch) 3890 << A->getValue(i) << T.str(); 3891 else 3892 Opts.OMPTargetTriples.push_back(TT); 3893 } 3894 } 3895 3896 // Get OpenMP host file path if any and report if a non existent file is 3897 // found 3898 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3899 Opts.OMPHostIRFile = A->getValue(); 3900 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3901 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3902 << Opts.OMPHostIRFile; 3903 } 3904 3905 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3906 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3907 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3908 3909 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3910 Opts.OpenMPCUDAForceFullRuntime = 3911 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3912 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3913 3914 // FIXME: Eliminate this dependency. 3915 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3916 OptSize = getOptimizationLevelSize(Args); 3917 Opts.Optimize = Opt != 0; 3918 Opts.OptimizeSize = OptSize != 0; 3919 3920 // This is the __NO_INLINE__ define, which just depends on things like the 3921 // optimization level and -fno-inline, not actually whether the backend has 3922 // inlining enabled. 3923 Opts.NoInlineDefine = !Opts.Optimize; 3924 if (Arg *InlineArg = Args.getLastArg( 3925 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3926 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3927 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3928 Opts.NoInlineDefine = true; 3929 3930 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3931 StringRef Val = A->getValue(); 3932 if (Val == "fast") 3933 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3934 else if (Val == "on") 3935 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3936 else if (Val == "off") 3937 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3938 else if (Val == "fast-honor-pragmas") 3939 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3940 else 3941 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3942 } 3943 3944 // Parse -fsanitize= arguments. 3945 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3946 Diags, Opts.Sanitize); 3947 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3948 std::vector<std::string> systemIgnorelists = 3949 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3950 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3951 systemIgnorelists.begin(), 3952 systemIgnorelists.end()); 3953 3954 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3955 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3956 3957 StringRef Ver = A->getValue(); 3958 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3959 unsigned Major, Minor = 0; 3960 3961 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3962 // y or y.0 (4 <= y <= current version). 3963 if (!VerParts.first.startswith("0") && 3964 !VerParts.first.getAsInteger(10, Major) && 3965 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3966 (Major == 3 ? VerParts.second.size() == 1 && 3967 !VerParts.second.getAsInteger(10, Minor) 3968 : VerParts.first.size() == Ver.size() || 3969 VerParts.second == "0")) { 3970 // Got a valid version number. 3971 if (Major == 3 && Minor <= 8) 3972 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3973 else if (Major <= 4) 3974 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3975 else if (Major <= 6) 3976 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3977 else if (Major <= 7) 3978 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3979 else if (Major <= 9) 3980 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3981 else if (Major <= 11) 3982 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3983 else if (Major <= 12) 3984 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 3985 else if (Major <= 14) 3986 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 3987 } else if (Ver != "latest") { 3988 Diags.Report(diag::err_drv_invalid_value) 3989 << A->getAsString(Args) << A->getValue(); 3990 } 3991 } 3992 3993 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3994 StringRef SignScope = A->getValue(); 3995 3996 if (SignScope.equals_insensitive("none")) 3997 Opts.setSignReturnAddressScope( 3998 LangOptions::SignReturnAddressScopeKind::None); 3999 else if (SignScope.equals_insensitive("all")) 4000 Opts.setSignReturnAddressScope( 4001 LangOptions::SignReturnAddressScopeKind::All); 4002 else if (SignScope.equals_insensitive("non-leaf")) 4003 Opts.setSignReturnAddressScope( 4004 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4005 else 4006 Diags.Report(diag::err_drv_invalid_value) 4007 << A->getAsString(Args) << SignScope; 4008 4009 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4010 StringRef SignKey = A->getValue(); 4011 if (!SignScope.empty() && !SignKey.empty()) { 4012 if (SignKey.equals_insensitive("a_key")) 4013 Opts.setSignReturnAddressKey( 4014 LangOptions::SignReturnAddressKeyKind::AKey); 4015 else if (SignKey.equals_insensitive("b_key")) 4016 Opts.setSignReturnAddressKey( 4017 LangOptions::SignReturnAddressKeyKind::BKey); 4018 else 4019 Diags.Report(diag::err_drv_invalid_value) 4020 << A->getAsString(Args) << SignKey; 4021 } 4022 } 4023 } 4024 4025 // The value can be empty, which indicates the system default should be used. 4026 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4027 if (!CXXABI.empty()) { 4028 if (!TargetCXXABI::isABI(CXXABI)) { 4029 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4030 } else { 4031 auto Kind = TargetCXXABI::getKind(CXXABI); 4032 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4033 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4034 else 4035 Opts.CXXABI = Kind; 4036 } 4037 } 4038 4039 Opts.RelativeCXXABIVTables = 4040 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4041 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4042 TargetCXXABI::usesRelativeVTables(T)); 4043 4044 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4045 auto Split = StringRef(A).split('='); 4046 Opts.MacroPrefixMap.insert( 4047 {std::string(Split.first), std::string(Split.second)}); 4048 } 4049 4050 Opts.UseTargetPathSeparator = 4051 !Args.getLastArg(OPT_fno_file_reproducible) && 4052 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4053 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4054 Args.getLastArg(OPT_ffile_reproducible)); 4055 4056 // Error if -mvscale-min is unbounded. 4057 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4058 unsigned VScaleMin; 4059 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4060 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4061 } 4062 4063 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4064 std::ifstream SeedFile(A->getValue(0)); 4065 4066 if (!SeedFile.is_open()) 4067 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4068 << A->getValue(0); 4069 4070 std::getline(SeedFile, Opts.RandstructSeed); 4071 } 4072 4073 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4074 Opts.RandstructSeed = A->getValue(0); 4075 4076 return Diags.getNumErrors() == NumErrorsBefore; 4077 } 4078 4079 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4080 switch (Action) { 4081 case frontend::ASTDeclList: 4082 case frontend::ASTDump: 4083 case frontend::ASTPrint: 4084 case frontend::ASTView: 4085 case frontend::EmitAssembly: 4086 case frontend::EmitBC: 4087 case frontend::EmitHTML: 4088 case frontend::EmitLLVM: 4089 case frontend::EmitLLVMOnly: 4090 case frontend::EmitCodeGenOnly: 4091 case frontend::EmitObj: 4092 case frontend::ExtractAPI: 4093 case frontend::FixIt: 4094 case frontend::GenerateModule: 4095 case frontend::GenerateModuleInterface: 4096 case frontend::GenerateHeaderModule: 4097 case frontend::GenerateHeaderUnit: 4098 case frontend::GeneratePCH: 4099 case frontend::GenerateInterfaceStubs: 4100 case frontend::ParseSyntaxOnly: 4101 case frontend::ModuleFileInfo: 4102 case frontend::VerifyPCH: 4103 case frontend::PluginAction: 4104 case frontend::RewriteObjC: 4105 case frontend::RewriteTest: 4106 case frontend::RunAnalysis: 4107 case frontend::TemplightDump: 4108 case frontend::MigrateSource: 4109 return false; 4110 4111 case frontend::DumpCompilerOptions: 4112 case frontend::DumpRawTokens: 4113 case frontend::DumpTokens: 4114 case frontend::InitOnly: 4115 case frontend::PrintPreamble: 4116 case frontend::PrintPreprocessedInput: 4117 case frontend::RewriteMacros: 4118 case frontend::RunPreprocessorOnly: 4119 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4120 return true; 4121 } 4122 llvm_unreachable("invalid frontend action"); 4123 } 4124 4125 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4126 SmallVectorImpl<const char *> &Args, 4127 CompilerInvocation::StringAllocator SA, 4128 const LangOptions &LangOpts, 4129 const FrontendOptions &FrontendOpts, 4130 const CodeGenOptions &CodeGenOpts) { 4131 PreprocessorOptions *PreprocessorOpts = &Opts; 4132 4133 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4134 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4135 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4136 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4137 MERGER, EXTRACTOR, TABLE_INDEX) \ 4138 GENERATE_OPTION_WITH_MARSHALLING( \ 4139 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4140 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4141 #include "clang/Driver/Options.inc" 4142 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4143 4144 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4145 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4146 4147 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4148 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4149 4150 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4151 GenerateArg(Args, OPT_preamble_bytes_EQ, 4152 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4153 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4154 SA); 4155 4156 for (const auto &M : Opts.Macros) { 4157 // Don't generate __CET__ macro definitions. They are implied by the 4158 // -fcf-protection option that is generated elsewhere. 4159 if (M.first == "__CET__=1" && !M.second && 4160 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4161 continue; 4162 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4163 !CodeGenOpts.CFProtectionBranch) 4164 continue; 4165 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4166 CodeGenOpts.CFProtectionBranch) 4167 continue; 4168 4169 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4170 } 4171 4172 for (const auto &I : Opts.Includes) { 4173 // Don't generate OpenCL includes. They are implied by other flags that are 4174 // generated elsewhere. 4175 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4176 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4177 I == "opencl-c.h")) 4178 continue; 4179 // Don't generate HLSL includes. They are implied by other flags that are 4180 // generated elsewhere. 4181 if (LangOpts.HLSL && I == "hlsl.h") 4182 continue; 4183 4184 GenerateArg(Args, OPT_include, I, SA); 4185 } 4186 4187 for (const auto &CI : Opts.ChainedIncludes) 4188 GenerateArg(Args, OPT_chain_include, CI, SA); 4189 4190 for (const auto &RF : Opts.RemappedFiles) 4191 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4192 4193 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4194 // generated elsewhere. 4195 } 4196 4197 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4198 DiagnosticsEngine &Diags, 4199 frontend::ActionKind Action, 4200 const FrontendOptions &FrontendOpts) { 4201 unsigned NumErrorsBefore = Diags.getNumErrors(); 4202 4203 PreprocessorOptions *PreprocessorOpts = &Opts; 4204 4205 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4206 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4207 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4208 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4209 MERGER, EXTRACTOR, TABLE_INDEX) \ 4210 PARSE_OPTION_WITH_MARSHALLING( \ 4211 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4212 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4213 #include "clang/Driver/Options.inc" 4214 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4215 4216 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4217 Args.hasArg(OPT_pch_through_hdrstop_use); 4218 4219 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4220 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4221 4222 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4223 StringRef Value(A->getValue()); 4224 size_t Comma = Value.find(','); 4225 unsigned Bytes = 0; 4226 unsigned EndOfLine = 0; 4227 4228 if (Comma == StringRef::npos || 4229 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4230 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4231 Diags.Report(diag::err_drv_preamble_format); 4232 else { 4233 Opts.PrecompiledPreambleBytes.first = Bytes; 4234 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4235 } 4236 } 4237 4238 // Add the __CET__ macro if a CFProtection option is set. 4239 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4240 StringRef Name = A->getValue(); 4241 if (Name == "branch") 4242 Opts.addMacroDef("__CET__=1"); 4243 else if (Name == "return") 4244 Opts.addMacroDef("__CET__=2"); 4245 else if (Name == "full") 4246 Opts.addMacroDef("__CET__=3"); 4247 } 4248 4249 // Add macros from the command line. 4250 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4251 if (A->getOption().matches(OPT_D)) 4252 Opts.addMacroDef(A->getValue()); 4253 else 4254 Opts.addMacroUndef(A->getValue()); 4255 } 4256 4257 // Add the ordered list of -includes. 4258 for (const auto *A : Args.filtered(OPT_include)) 4259 Opts.Includes.emplace_back(A->getValue()); 4260 4261 for (const auto *A : Args.filtered(OPT_chain_include)) 4262 Opts.ChainedIncludes.emplace_back(A->getValue()); 4263 4264 for (const auto *A : Args.filtered(OPT_remap_file)) { 4265 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4266 4267 if (Split.second.empty()) { 4268 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4269 continue; 4270 } 4271 4272 Opts.addRemappedFile(Split.first, Split.second); 4273 } 4274 4275 // Always avoid lexing editor placeholders when we're just running the 4276 // preprocessor as we never want to emit the 4277 // "editor placeholder in source file" error in PP only mode. 4278 if (isStrictlyPreprocessorAction(Action)) 4279 Opts.LexEditorPlaceholders = false; 4280 4281 return Diags.getNumErrors() == NumErrorsBefore; 4282 } 4283 4284 static void GeneratePreprocessorOutputArgs( 4285 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4286 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4287 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4288 4289 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4290 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4291 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4292 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4293 MERGER, EXTRACTOR, TABLE_INDEX) \ 4294 GENERATE_OPTION_WITH_MARSHALLING( \ 4295 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4296 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4297 #include "clang/Driver/Options.inc" 4298 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4299 4300 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4301 if (Generate_dM) 4302 GenerateArg(Args, OPT_dM, SA); 4303 if (!Generate_dM && Opts.ShowMacros) 4304 GenerateArg(Args, OPT_dD, SA); 4305 if (Opts.DirectivesOnly) 4306 GenerateArg(Args, OPT_fdirectives_only, SA); 4307 } 4308 4309 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4310 ArgList &Args, DiagnosticsEngine &Diags, 4311 frontend::ActionKind Action) { 4312 unsigned NumErrorsBefore = Diags.getNumErrors(); 4313 4314 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4315 4316 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4317 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4318 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4319 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4320 MERGER, EXTRACTOR, TABLE_INDEX) \ 4321 PARSE_OPTION_WITH_MARSHALLING( \ 4322 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4323 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4324 #include "clang/Driver/Options.inc" 4325 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4326 4327 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4328 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4329 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4330 4331 return Diags.getNumErrors() == NumErrorsBefore; 4332 } 4333 4334 static void GenerateTargetArgs(const TargetOptions &Opts, 4335 SmallVectorImpl<const char *> &Args, 4336 CompilerInvocation::StringAllocator SA) { 4337 const TargetOptions *TargetOpts = &Opts; 4338 #define TARGET_OPTION_WITH_MARSHALLING( \ 4339 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4340 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4341 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4342 MERGER, EXTRACTOR, TABLE_INDEX) \ 4343 GENERATE_OPTION_WITH_MARSHALLING( \ 4344 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4345 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4346 #include "clang/Driver/Options.inc" 4347 #undef TARGET_OPTION_WITH_MARSHALLING 4348 4349 if (!Opts.SDKVersion.empty()) 4350 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4351 SA); 4352 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4353 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4354 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4355 } 4356 4357 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4358 DiagnosticsEngine &Diags) { 4359 unsigned NumErrorsBefore = Diags.getNumErrors(); 4360 4361 TargetOptions *TargetOpts = &Opts; 4362 4363 #define TARGET_OPTION_WITH_MARSHALLING( \ 4364 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4365 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4366 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4367 MERGER, EXTRACTOR, TABLE_INDEX) \ 4368 PARSE_OPTION_WITH_MARSHALLING( \ 4369 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4370 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4371 #include "clang/Driver/Options.inc" 4372 #undef TARGET_OPTION_WITH_MARSHALLING 4373 4374 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4375 llvm::VersionTuple Version; 4376 if (Version.tryParse(A->getValue())) 4377 Diags.Report(diag::err_drv_invalid_value) 4378 << A->getAsString(Args) << A->getValue(); 4379 else 4380 Opts.SDKVersion = Version; 4381 } 4382 if (Arg *A = 4383 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4384 llvm::VersionTuple Version; 4385 if (Version.tryParse(A->getValue())) 4386 Diags.Report(diag::err_drv_invalid_value) 4387 << A->getAsString(Args) << A->getValue(); 4388 else 4389 Opts.DarwinTargetVariantSDKVersion = Version; 4390 } 4391 4392 return Diags.getNumErrors() == NumErrorsBefore; 4393 } 4394 4395 bool CompilerInvocation::CreateFromArgsImpl( 4396 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4397 DiagnosticsEngine &Diags, const char *Argv0) { 4398 unsigned NumErrorsBefore = Diags.getNumErrors(); 4399 4400 // Parse the arguments. 4401 const OptTable &Opts = getDriverOptTable(); 4402 const unsigned IncludedFlagsBitmask = options::CC1Option; 4403 unsigned MissingArgIndex, MissingArgCount; 4404 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4405 MissingArgCount, IncludedFlagsBitmask); 4406 LangOptions &LangOpts = *Res.getLangOpts(); 4407 4408 // Check for missing argument error. 4409 if (MissingArgCount) 4410 Diags.Report(diag::err_drv_missing_argument) 4411 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4412 4413 // Issue errors on unknown arguments. 4414 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4415 auto ArgString = A->getAsString(Args); 4416 std::string Nearest; 4417 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4418 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4419 else 4420 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4421 << ArgString << Nearest; 4422 } 4423 4424 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4425 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4426 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4427 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4428 /*DefaultDiagColor=*/false); 4429 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4430 // FIXME: We shouldn't have to pass the DashX option around here 4431 InputKind DashX = Res.getFrontendOpts().DashX; 4432 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4433 llvm::Triple T(Res.getTargetOpts().Triple); 4434 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4435 Res.getFileSystemOpts().WorkingDir); 4436 4437 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4438 Diags); 4439 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4440 LangOpts.ObjCExceptions = 1; 4441 4442 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4443 if (Warning == "misexpect" && 4444 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4445 Res.getCodeGenOpts().MisExpect = true; 4446 } 4447 } 4448 4449 if (LangOpts.CUDA) { 4450 // During CUDA device-side compilation, the aux triple is the 4451 // triple used for host compilation. 4452 if (LangOpts.CUDAIsDevice) 4453 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4454 } 4455 4456 // Set the triple of the host for OpenMP device compile. 4457 if (LangOpts.OpenMPIsDevice) 4458 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4459 4460 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4461 Res.getFrontendOpts().OutputFile, LangOpts); 4462 4463 // FIXME: Override value name discarding when asan or msan is used because the 4464 // backend passes depend on the name of the alloca in order to print out 4465 // names. 4466 Res.getCodeGenOpts().DiscardValueNames &= 4467 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4468 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4469 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4470 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4471 4472 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4473 Res.getFrontendOpts().ProgramAction, 4474 Res.getFrontendOpts()); 4475 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4476 Res.getFrontendOpts().ProgramAction); 4477 4478 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4479 Res.getFrontendOpts().ProgramAction, 4480 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4481 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4482 Res.getDependencyOutputOpts().Targets.empty()) 4483 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4484 4485 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4486 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4487 !Res.getLangOpts()->Sanitize.empty()) { 4488 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4489 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4490 } 4491 4492 // Store the command-line for using in the CodeView backend. 4493 Res.getCodeGenOpts().Argv0 = Argv0; 4494 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4495 4496 FixupInvocation(Res, Diags, Args, DashX); 4497 4498 return Diags.getNumErrors() == NumErrorsBefore; 4499 } 4500 4501 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4502 ArrayRef<const char *> CommandLineArgs, 4503 DiagnosticsEngine &Diags, 4504 const char *Argv0) { 4505 CompilerInvocation DummyInvocation; 4506 4507 return RoundTrip( 4508 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4509 DiagnosticsEngine &Diags, const char *Argv0) { 4510 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4511 }, 4512 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4513 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4514 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4515 } 4516 4517 std::string CompilerInvocation::getModuleHash() const { 4518 // FIXME: Consider using SHA1 instead of MD5. 4519 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4520 4521 // Note: For QoI reasons, the things we use as a hash here should all be 4522 // dumped via the -module-info flag. 4523 4524 // Start the signature with the compiler version. 4525 HBuilder.add(getClangFullRepositoryVersion()); 4526 4527 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4528 // and getClangFullRepositoryVersion() doesn't include git revision. 4529 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4530 4531 // Extend the signature with the language options 4532 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4533 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4534 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4535 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4536 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4537 #include "clang/Basic/LangOptions.def" 4538 4539 HBuilder.addRange(LangOpts->ModuleFeatures); 4540 4541 HBuilder.add(LangOpts->ObjCRuntime); 4542 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4543 4544 // Extend the signature with the target options. 4545 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4546 TargetOpts->ABI); 4547 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4548 4549 // Extend the signature with preprocessor options. 4550 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4551 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4552 4553 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4554 for (const auto &Macro : getPreprocessorOpts().Macros) { 4555 // If we're supposed to ignore this macro for the purposes of modules, 4556 // don't put it into the hash. 4557 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4558 // Check whether we're ignoring this macro. 4559 StringRef MacroDef = Macro.first; 4560 if (hsOpts.ModulesIgnoreMacros.count( 4561 llvm::CachedHashString(MacroDef.split('=').first))) 4562 continue; 4563 } 4564 4565 HBuilder.add(Macro); 4566 } 4567 4568 // Extend the signature with the sysroot and other header search options. 4569 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4570 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4571 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4572 hsOpts.ModulesValidateDiagnosticOptions); 4573 HBuilder.add(hsOpts.ResourceDir); 4574 4575 if (hsOpts.ModulesStrictContextHash) { 4576 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4577 HBuilder.addRange(hsOpts.UserEntries); 4578 4579 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4580 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4581 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4582 HBuilder.add(diagOpts.get##Name()); 4583 #include "clang/Basic/DiagnosticOptions.def" 4584 #undef DIAGOPT 4585 #undef ENUM_DIAGOPT 4586 } 4587 4588 // Extend the signature with the user build path. 4589 HBuilder.add(hsOpts.ModuleUserBuildPath); 4590 4591 // Extend the signature with the module file extensions. 4592 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4593 ext->hashExtension(HBuilder); 4594 4595 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4596 // affects the debug info in the PCM. 4597 if (getCodeGenOpts().DebugTypeExtRefs) 4598 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4599 4600 // Extend the signature with the enabled sanitizers, if at least one is 4601 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4602 SanitizerSet SanHash = LangOpts->Sanitize; 4603 SanHash.clear(getPPTransparentSanitizers()); 4604 if (!SanHash.empty()) 4605 HBuilder.add(SanHash.Mask); 4606 4607 llvm::MD5::MD5Result Result; 4608 HBuilder.getHasher().final(Result); 4609 uint64_t Hash = Result.high() ^ Result.low(); 4610 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4611 } 4612 4613 void CompilerInvocation::generateCC1CommandLine( 4614 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4615 llvm::Triple T(TargetOpts->Triple); 4616 4617 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4618 GenerateMigratorArgs(MigratorOpts, Args, SA); 4619 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4620 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4621 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4622 GenerateTargetArgs(*TargetOpts, Args, SA); 4623 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4624 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4625 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4626 &*LangOpts); 4627 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4628 CodeGenOpts); 4629 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4630 FrontendOpts.ProgramAction); 4631 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4632 } 4633 4634 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4635 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4636 DiagnosticsEngine &Diags) { 4637 return createVFSFromCompilerInvocation(CI, Diags, 4638 llvm::vfs::getRealFileSystem()); 4639 } 4640 4641 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4642 clang::createVFSFromCompilerInvocation( 4643 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4644 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4645 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4646 return BaseFS; 4647 4648 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4649 // earlier vfs files are on the bottom 4650 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4651 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4652 Result->getBufferForFile(File); 4653 if (!Buffer) { 4654 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4655 continue; 4656 } 4657 4658 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4659 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4660 /*DiagContext*/ nullptr, Result); 4661 if (!FS) { 4662 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4663 continue; 4664 } 4665 4666 Result = FS; 4667 } 4668 return Result; 4669 } 4670