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 tostore checker options. 1093 1094 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1095 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1096 1097 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1098 SHALLOW_VAL, DEEP_VAL) \ 1099 switch (AnOpts.getUserMode()) { \ 1100 case UMK_Shallow: \ 1101 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1102 break; \ 1103 case UMK_Deep: \ 1104 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1105 break; \ 1106 } \ 1107 1108 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1109 #undef ANALYZER_OPTION 1110 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1111 1112 // At this point, AnalyzerOptions is configured. Let's validate some options. 1113 1114 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1115 // The current approach only validates the registered checkers which does not 1116 // contain the runtime enabled checkers and optimally we would validate both. 1117 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1118 std::vector<StringRef> Checkers = 1119 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1120 std::vector<StringRef> Packages = 1121 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1122 1123 SmallVector<StringRef, 16> CheckersAndPackages; 1124 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1125 1126 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1127 if (Diags) { 1128 bool IsChecker = CheckerOrPackage.contains('.'); 1129 bool IsValidName = IsChecker 1130 ? llvm::is_contained(Checkers, CheckerOrPackage) 1131 : llvm::is_contained(Packages, CheckerOrPackage); 1132 1133 if (!IsValidName) 1134 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1135 << CheckerOrPackage; 1136 } 1137 1138 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1139 } 1140 } 1141 1142 if (!Diags) 1143 return; 1144 1145 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1146 Diags->Report(diag::err_analyzer_config_invalid_input) 1147 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1148 1149 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1150 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1151 << "a filename"; 1152 1153 if (!AnOpts.ModelPath.empty() && 1154 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1155 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1156 << "a filename"; 1157 } 1158 1159 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1160 static void 1161 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1162 CompilerInvocation::StringAllocator SA, 1163 OptSpecifier OptEQ, StringRef Name, 1164 const CodeGenOptions::OptRemark &Remark) { 1165 if (Remark.hasValidPattern()) { 1166 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1167 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1168 GenerateArg(Args, OPT_R_Joined, Name, SA); 1169 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1170 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1171 } 1172 } 1173 1174 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1175 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1176 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1177 static CodeGenOptions::OptRemark 1178 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1179 OptSpecifier OptEQ, StringRef Name) { 1180 CodeGenOptions::OptRemark Result; 1181 1182 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1183 StringRef Pattern) { 1184 Result.Pattern = Pattern.str(); 1185 1186 std::string RegexError; 1187 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1188 if (!Result.Regex->isValid(RegexError)) { 1189 Diags.Report(diag::err_drv_optimization_remark_pattern) 1190 << RegexError << A->getAsString(Args); 1191 return false; 1192 } 1193 1194 return true; 1195 }; 1196 1197 for (Arg *A : Args) { 1198 if (A->getOption().matches(OPT_R_Joined)) { 1199 StringRef Value = A->getValue(); 1200 1201 if (Value == Name) 1202 Result.Kind = CodeGenOptions::RK_Enabled; 1203 else if (Value == "everything") 1204 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1205 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1206 Result.Kind = CodeGenOptions::RK_Disabled; 1207 else if (Value == "no-everything") 1208 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1209 else 1210 continue; 1211 1212 if (Result.Kind == CodeGenOptions::RK_Disabled || 1213 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1214 Result.Pattern = ""; 1215 Result.Regex = nullptr; 1216 } else { 1217 InitializeResultPattern(A, ".*"); 1218 } 1219 } else if (A->getOption().matches(OptEQ)) { 1220 Result.Kind = CodeGenOptions::RK_WithPattern; 1221 if (!InitializeResultPattern(A, A->getValue())) 1222 return CodeGenOptions::OptRemark(); 1223 } 1224 } 1225 1226 return Result; 1227 } 1228 1229 static bool parseDiagnosticLevelMask(StringRef FlagName, 1230 const std::vector<std::string> &Levels, 1231 DiagnosticsEngine &Diags, 1232 DiagnosticLevelMask &M) { 1233 bool Success = true; 1234 for (const auto &Level : Levels) { 1235 DiagnosticLevelMask const PM = 1236 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1237 .Case("note", DiagnosticLevelMask::Note) 1238 .Case("remark", DiagnosticLevelMask::Remark) 1239 .Case("warning", DiagnosticLevelMask::Warning) 1240 .Case("error", DiagnosticLevelMask::Error) 1241 .Default(DiagnosticLevelMask::None); 1242 if (PM == DiagnosticLevelMask::None) { 1243 Success = false; 1244 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1245 } 1246 M = M | PM; 1247 } 1248 return Success; 1249 } 1250 1251 static void parseSanitizerKinds(StringRef FlagName, 1252 const std::vector<std::string> &Sanitizers, 1253 DiagnosticsEngine &Diags, SanitizerSet &S) { 1254 for (const auto &Sanitizer : Sanitizers) { 1255 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1256 if (K == SanitizerMask()) 1257 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1258 else 1259 S.set(K, true); 1260 } 1261 } 1262 1263 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1264 SmallVector<StringRef, 4> Values; 1265 serializeSanitizerSet(S, Values); 1266 return Values; 1267 } 1268 1269 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1270 ArgList &Args, DiagnosticsEngine &D, 1271 XRayInstrSet &S) { 1272 llvm::SmallVector<StringRef, 2> BundleParts; 1273 llvm::SplitString(Bundle, BundleParts, ","); 1274 for (const auto &B : BundleParts) { 1275 auto Mask = parseXRayInstrValue(B); 1276 if (Mask == XRayInstrKind::None) 1277 if (B != "none") 1278 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1279 else 1280 S.Mask = Mask; 1281 else if (Mask == XRayInstrKind::All) 1282 S.Mask = Mask; 1283 else 1284 S.set(Mask, true); 1285 } 1286 } 1287 1288 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1289 llvm::SmallVector<StringRef, 2> BundleParts; 1290 serializeXRayInstrValue(S, BundleParts); 1291 std::string Buffer; 1292 llvm::raw_string_ostream OS(Buffer); 1293 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1294 return Buffer; 1295 } 1296 1297 // Set the profile kind using fprofile-instrument-use-path. 1298 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1299 const Twine &ProfileName) { 1300 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1301 // In error, return silently and let Clang PGOUse report the error message. 1302 if (auto E = ReaderOrErr.takeError()) { 1303 llvm::consumeError(std::move(E)); 1304 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1305 return; 1306 } 1307 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1308 std::move(ReaderOrErr.get()); 1309 if (PGOReader->isIRLevelProfile()) { 1310 if (PGOReader->hasCSIRLevelProfile()) 1311 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1312 else 1313 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1314 } else 1315 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1316 } 1317 1318 void CompilerInvocation::GenerateCodeGenArgs( 1319 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1320 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1321 const LangOptions *LangOpts) { 1322 const CodeGenOptions &CodeGenOpts = Opts; 1323 1324 if (Opts.OptimizationLevel == 0) 1325 GenerateArg(Args, OPT_O0, SA); 1326 else 1327 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1328 1329 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1330 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1331 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1332 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1333 MERGER, EXTRACTOR, TABLE_INDEX) \ 1334 GENERATE_OPTION_WITH_MARSHALLING( \ 1335 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1336 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1337 #include "clang/Driver/Options.inc" 1338 #undef CODEGEN_OPTION_WITH_MARSHALLING 1339 1340 if (Opts.OptimizationLevel > 0) { 1341 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1342 GenerateArg(Args, OPT_finline_functions, SA); 1343 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1344 GenerateArg(Args, OPT_finline_hint_functions, SA); 1345 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1346 GenerateArg(Args, OPT_fno_inline, SA); 1347 } 1348 1349 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1350 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1351 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1352 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1353 1354 Optional<StringRef> DebugInfoVal; 1355 switch (Opts.DebugInfo) { 1356 case codegenoptions::DebugLineTablesOnly: 1357 DebugInfoVal = "line-tables-only"; 1358 break; 1359 case codegenoptions::DebugDirectivesOnly: 1360 DebugInfoVal = "line-directives-only"; 1361 break; 1362 case codegenoptions::DebugInfoConstructor: 1363 DebugInfoVal = "constructor"; 1364 break; 1365 case codegenoptions::LimitedDebugInfo: 1366 DebugInfoVal = "limited"; 1367 break; 1368 case codegenoptions::FullDebugInfo: 1369 DebugInfoVal = "standalone"; 1370 break; 1371 case codegenoptions::UnusedTypeInfo: 1372 DebugInfoVal = "unused-types"; 1373 break; 1374 case codegenoptions::NoDebugInfo: // default value 1375 DebugInfoVal = None; 1376 break; 1377 case codegenoptions::LocTrackingOnly: // implied value 1378 DebugInfoVal = None; 1379 break; 1380 } 1381 if (DebugInfoVal) 1382 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1383 1384 for (const auto &Prefix : Opts.DebugPrefixMap) 1385 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1386 Prefix.first + "=" + Prefix.second, SA); 1387 1388 for (const auto &Prefix : Opts.CoveragePrefixMap) 1389 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1390 Prefix.first + "=" + Prefix.second, SA); 1391 1392 if (Opts.NewStructPathTBAA) 1393 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1394 1395 if (Opts.OptimizeSize == 1) 1396 GenerateArg(Args, OPT_O, "s", SA); 1397 else if (Opts.OptimizeSize == 2) 1398 GenerateArg(Args, OPT_O, "z", SA); 1399 1400 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1401 // -ffreestanding. We'll consider that when generating them. 1402 1403 // NoBuiltinFuncs are generated by LangOptions. 1404 1405 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1406 GenerateArg(Args, OPT_funroll_loops, SA); 1407 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1408 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1409 1410 if (!Opts.BinutilsVersion.empty()) 1411 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1412 1413 if (Opts.DebugNameTable == 1414 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1415 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1416 else if (Opts.DebugNameTable == 1417 static_cast<unsigned>( 1418 llvm::DICompileUnit::DebugNameTableKind::Default)) 1419 GenerateArg(Args, OPT_gpubnames, SA); 1420 1421 auto TNK = Opts.getDebugSimpleTemplateNames(); 1422 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1423 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1424 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1425 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1426 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1427 } 1428 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1429 // it or PGOUseInstrumentor. 1430 1431 if (Opts.TimePasses) { 1432 if (Opts.TimePassesPerRun) 1433 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1434 else 1435 GenerateArg(Args, OPT_ftime_report, SA); 1436 } 1437 1438 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1439 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1440 1441 if (Opts.PrepareForThinLTO) 1442 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1443 1444 if (!Opts.ThinLTOIndexFile.empty()) 1445 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1446 1447 if (Opts.SaveTempsFilePrefix == OutputFile) 1448 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1449 1450 StringRef MemProfileBasename("memprof.profraw"); 1451 if (!Opts.MemoryProfileOutput.empty()) { 1452 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1453 GenerateArg(Args, OPT_fmemory_profile, SA); 1454 } else { 1455 size_t ArgLength = 1456 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1457 GenerateArg(Args, OPT_fmemory_profile_EQ, 1458 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1459 } 1460 } 1461 1462 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1463 GenerateArg(Args, OPT_coverage_version_EQ, 1464 StringRef(Opts.CoverageVersion, 4), SA); 1465 1466 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1467 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1468 // won't be generated.) 1469 1470 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1471 std::string InstrBundle = 1472 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1473 if (!InstrBundle.empty()) 1474 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1475 } 1476 1477 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1478 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1479 else if (Opts.CFProtectionReturn) 1480 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1481 else if (Opts.CFProtectionBranch) 1482 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1483 1484 if (Opts.IBTSeal) 1485 GenerateArg(Args, OPT_mibt_seal, SA); 1486 1487 for (const auto &F : Opts.LinkBitcodeFiles) { 1488 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1489 F.PropagateAttrs && F.Internalize; 1490 GenerateArg(Args, 1491 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1492 F.Filename, SA); 1493 } 1494 1495 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1496 // That would make it easy to generate the option only **once** if it was 1497 // explicitly set to non-default value. 1498 if (Opts.ExplicitEmulatedTLS) { 1499 GenerateArg( 1500 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1501 } 1502 1503 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1504 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1505 1506 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1507 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1508 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1509 SA); 1510 1511 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1512 OptSpecifier Opt = 1513 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1514 GenerateArg(Args, Opt, SA); 1515 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1516 OptSpecifier Opt = 1517 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1518 GenerateArg(Args, Opt, SA); 1519 } 1520 1521 if (Opts.EnableAIXExtendedAltivecABI) 1522 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1523 1524 if (!Opts.OptRecordPasses.empty()) 1525 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1526 1527 if (!Opts.OptRecordFormat.empty()) 1528 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1529 1530 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1531 Opts.OptimizationRemark); 1532 1533 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1534 Opts.OptimizationRemarkMissed); 1535 1536 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1537 Opts.OptimizationRemarkAnalysis); 1538 1539 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1540 Opts.DiagnosticsHotnessThreshold 1541 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1542 : "auto", 1543 SA); 1544 1545 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1546 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1547 1548 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1549 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1550 1551 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1552 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1553 1554 if (!Opts.EmitVersionIdentMetadata) 1555 GenerateArg(Args, OPT_Qn, SA); 1556 1557 switch (Opts.FiniteLoops) { 1558 case CodeGenOptions::FiniteLoopsKind::Language: 1559 break; 1560 case CodeGenOptions::FiniteLoopsKind::Always: 1561 GenerateArg(Args, OPT_ffinite_loops, SA); 1562 break; 1563 case CodeGenOptions::FiniteLoopsKind::Never: 1564 GenerateArg(Args, OPT_fno_finite_loops, SA); 1565 break; 1566 } 1567 } 1568 1569 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1570 InputKind IK, 1571 DiagnosticsEngine &Diags, 1572 const llvm::Triple &T, 1573 const std::string &OutputFile, 1574 const LangOptions &LangOptsRef) { 1575 unsigned NumErrorsBefore = Diags.getNumErrors(); 1576 1577 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1578 // TODO: This could be done in Driver 1579 unsigned MaxOptLevel = 3; 1580 if (OptimizationLevel > MaxOptLevel) { 1581 // If the optimization level is not supported, fall back on the default 1582 // optimization 1583 Diags.Report(diag::warn_drv_optimization_value) 1584 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1585 OptimizationLevel = MaxOptLevel; 1586 } 1587 Opts.OptimizationLevel = OptimizationLevel; 1588 1589 // The key paths of codegen options defined in Options.td start with 1590 // "CodeGenOpts.". Let's provide the expected variable name and type. 1591 CodeGenOptions &CodeGenOpts = Opts; 1592 // Some codegen options depend on language options. Let's provide the expected 1593 // variable name and type. 1594 const LangOptions *LangOpts = &LangOptsRef; 1595 1596 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1597 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1598 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1599 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1600 MERGER, EXTRACTOR, TABLE_INDEX) \ 1601 PARSE_OPTION_WITH_MARSHALLING( \ 1602 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1603 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1604 #include "clang/Driver/Options.inc" 1605 #undef CODEGEN_OPTION_WITH_MARSHALLING 1606 1607 // At O0 we want to fully disable inlining outside of cases marked with 1608 // 'alwaysinline' that are required for correctness. 1609 if (Opts.OptimizationLevel == 0) { 1610 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1611 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1612 options::OPT_finline_hint_functions, 1613 options::OPT_fno_inline_functions, 1614 options::OPT_fno_inline)) { 1615 // Explicit inlining flags can disable some or all inlining even at 1616 // optimization levels above zero. 1617 if (A->getOption().matches(options::OPT_finline_functions)) 1618 Opts.setInlining(CodeGenOptions::NormalInlining); 1619 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1620 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1621 else 1622 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1623 } else { 1624 Opts.setInlining(CodeGenOptions::NormalInlining); 1625 } 1626 1627 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1628 // -fdirect-access-external-data. 1629 Opts.DirectAccessExternalData = 1630 Args.hasArg(OPT_fdirect_access_external_data) || 1631 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1632 LangOpts->PICLevel == 0); 1633 1634 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1635 unsigned Val = 1636 llvm::StringSwitch<unsigned>(A->getValue()) 1637 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1638 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1639 .Case("constructor", codegenoptions::DebugInfoConstructor) 1640 .Case("limited", codegenoptions::LimitedDebugInfo) 1641 .Case("standalone", codegenoptions::FullDebugInfo) 1642 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1643 .Default(~0U); 1644 if (Val == ~0U) 1645 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1646 << A->getValue(); 1647 else 1648 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1649 } 1650 1651 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1652 // constructor homing, and vice versa for -fno-use-ctor-homing. 1653 if (const Arg *A = 1654 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1655 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1656 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1657 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1658 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1659 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1660 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1661 } 1662 1663 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1664 auto Split = StringRef(Arg).split('='); 1665 Opts.DebugPrefixMap.insert( 1666 {std::string(Split.first), std::string(Split.second)}); 1667 } 1668 1669 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1670 auto Split = StringRef(Arg).split('='); 1671 Opts.CoveragePrefixMap.insert( 1672 {std::string(Split.first), std::string(Split.second)}); 1673 } 1674 1675 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1676 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1677 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1678 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1679 1680 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1681 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1682 Opts.EmitCallSiteInfo = true; 1683 1684 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1685 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1686 << Opts.DIBugsReportFilePath; 1687 Opts.DIBugsReportFilePath = ""; 1688 } 1689 1690 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1691 Args.hasArg(OPT_new_struct_path_tbaa); 1692 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1693 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1694 if (Opts.SimplifyLibCalls) 1695 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1696 Opts.UnrollLoops = 1697 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1698 (Opts.OptimizationLevel > 1)); 1699 Opts.BinutilsVersion = 1700 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1701 1702 Opts.DebugNameTable = static_cast<unsigned>( 1703 Args.hasArg(OPT_ggnu_pubnames) 1704 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1705 : Args.hasArg(OPT_gpubnames) 1706 ? llvm::DICompileUnit::DebugNameTableKind::Default 1707 : llvm::DICompileUnit::DebugNameTableKind::None); 1708 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1709 StringRef Value = A->getValue(); 1710 if (Value != "simple" && Value != "mangled") 1711 Diags.Report(diag::err_drv_unsupported_option_argument) 1712 << A->getOption().getName() << A->getValue(); 1713 Opts.setDebugSimpleTemplateNames( 1714 StringRef(A->getValue()) == "simple" 1715 ? codegenoptions::DebugTemplateNamesKind::Simple 1716 : codegenoptions::DebugTemplateNamesKind::Mangled); 1717 } 1718 1719 if (!Opts.ProfileInstrumentUsePath.empty()) 1720 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1721 1722 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1723 Opts.TimePasses = true; 1724 1725 // -ftime-report= is only for new pass manager. 1726 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1727 StringRef Val = A->getValue(); 1728 if (Val == "per-pass") 1729 Opts.TimePassesPerRun = false; 1730 else if (Val == "per-pass-run") 1731 Opts.TimePassesPerRun = true; 1732 else 1733 Diags.Report(diag::err_drv_invalid_value) 1734 << A->getAsString(Args) << A->getValue(); 1735 } 1736 } 1737 1738 Opts.PrepareForLTO = false; 1739 Opts.PrepareForThinLTO = false; 1740 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1741 Opts.PrepareForLTO = true; 1742 StringRef S = A->getValue(); 1743 if (S == "thin") 1744 Opts.PrepareForThinLTO = true; 1745 else if (S != "full") 1746 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1747 } 1748 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1749 if (IK.getLanguage() != Language::LLVM_IR) 1750 Diags.Report(diag::err_drv_argument_only_allowed_with) 1751 << A->getAsString(Args) << "-x ir"; 1752 Opts.ThinLTOIndexFile = 1753 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1754 } 1755 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1756 Opts.SaveTempsFilePrefix = 1757 llvm::StringSwitch<std::string>(A->getValue()) 1758 .Case("obj", OutputFile) 1759 .Default(llvm::sys::path::filename(OutputFile).str()); 1760 1761 // The memory profile runtime appends the pid to make this name more unique. 1762 const char *MemProfileBasename = "memprof.profraw"; 1763 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1764 SmallString<128> Path( 1765 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1766 llvm::sys::path::append(Path, MemProfileBasename); 1767 Opts.MemoryProfileOutput = std::string(Path); 1768 } else if (Args.hasArg(OPT_fmemory_profile)) 1769 Opts.MemoryProfileOutput = MemProfileBasename; 1770 1771 memcpy(Opts.CoverageVersion, "408*", 4); 1772 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1773 if (Args.hasArg(OPT_coverage_version_EQ)) { 1774 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1775 if (CoverageVersion.size() != 4) { 1776 Diags.Report(diag::err_drv_invalid_value) 1777 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1778 << CoverageVersion; 1779 } else { 1780 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1781 } 1782 } 1783 } 1784 // FIXME: For backend options that are not yet recorded as function 1785 // attributes in the IR, keep track of them so we can embed them in a 1786 // separate data section and use them when building the bitcode. 1787 for (const auto &A : Args) { 1788 // Do not encode output and input. 1789 if (A->getOption().getID() == options::OPT_o || 1790 A->getOption().getID() == options::OPT_INPUT || 1791 A->getOption().getID() == options::OPT_x || 1792 A->getOption().getID() == options::OPT_fembed_bitcode || 1793 A->getOption().matches(options::OPT_W_Group)) 1794 continue; 1795 ArgStringList ASL; 1796 A->render(Args, ASL); 1797 for (const auto &arg : ASL) { 1798 StringRef ArgStr(arg); 1799 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1800 // using \00 to separate each commandline options. 1801 Opts.CmdArgs.push_back('\0'); 1802 } 1803 } 1804 1805 auto XRayInstrBundles = 1806 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1807 if (XRayInstrBundles.empty()) 1808 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1809 else 1810 for (const auto &A : XRayInstrBundles) 1811 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1812 Diags, Opts.XRayInstrumentationBundle); 1813 1814 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1815 StringRef Name = A->getValue(); 1816 if (Name == "full") { 1817 Opts.CFProtectionReturn = 1; 1818 Opts.CFProtectionBranch = 1; 1819 } else if (Name == "return") 1820 Opts.CFProtectionReturn = 1; 1821 else if (Name == "branch") 1822 Opts.CFProtectionBranch = 1; 1823 else if (Name != "none") 1824 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1825 } 1826 1827 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1828 Opts.IBTSeal = 1; 1829 1830 for (auto *A : 1831 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1832 CodeGenOptions::BitcodeFileToLink F; 1833 F.Filename = A->getValue(); 1834 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1835 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1836 // When linking CUDA bitcode, propagate function attributes so that 1837 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1838 F.PropagateAttrs = true; 1839 F.Internalize = true; 1840 } 1841 Opts.LinkBitcodeFiles.push_back(F); 1842 } 1843 1844 if (Args.getLastArg(OPT_femulated_tls) || 1845 Args.getLastArg(OPT_fno_emulated_tls)) { 1846 Opts.ExplicitEmulatedTLS = true; 1847 } 1848 1849 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1850 if (T.isOSAIX()) { 1851 StringRef Name = A->getValue(); 1852 if (Name != "global-dynamic") 1853 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1854 } 1855 } 1856 1857 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1858 StringRef Val = A->getValue(); 1859 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1860 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1861 if (!Opts.FPDenormalMode.isValid()) 1862 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1863 } 1864 1865 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1866 StringRef Val = A->getValue(); 1867 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1868 if (!Opts.FP32DenormalMode.isValid()) 1869 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1870 } 1871 1872 // X86_32 has -fppc-struct-return and -freg-struct-return. 1873 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1874 if (Arg *A = 1875 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1876 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1877 // TODO: We might want to consider enabling these options on AIX in the 1878 // future. 1879 if (T.isOSAIX()) 1880 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1881 << A->getSpelling() << T.str(); 1882 1883 const Option &O = A->getOption(); 1884 if (O.matches(OPT_fpcc_struct_return) || 1885 O.matches(OPT_maix_struct_return)) { 1886 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1887 } else { 1888 assert(O.matches(OPT_freg_struct_return) || 1889 O.matches(OPT_msvr4_struct_return)); 1890 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1891 } 1892 } 1893 1894 if (Arg *A = 1895 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1896 if (!T.isOSAIX()) 1897 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1898 << A->getSpelling() << T.str(); 1899 1900 const Option &O = A->getOption(); 1901 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1902 } 1903 1904 bool NeedLocTracking = false; 1905 1906 if (!Opts.OptRecordFile.empty()) 1907 NeedLocTracking = true; 1908 1909 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1910 Opts.OptRecordPasses = A->getValue(); 1911 NeedLocTracking = true; 1912 } 1913 1914 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1915 Opts.OptRecordFormat = A->getValue(); 1916 NeedLocTracking = true; 1917 } 1918 1919 Opts.OptimizationRemark = 1920 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1921 1922 Opts.OptimizationRemarkMissed = 1923 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1924 1925 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1926 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1927 1928 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1929 Opts.OptimizationRemarkMissed.hasValidPattern() || 1930 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1931 1932 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1933 bool UsingProfile = UsingSampleProfile || 1934 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1935 1936 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1937 // An IR file will contain PGO as metadata 1938 IK.getLanguage() != Language::LLVM_IR) 1939 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1940 << "-fdiagnostics-show-hotness"; 1941 1942 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1943 if (auto *arg = 1944 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1945 auto ResultOrErr = 1946 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1947 1948 if (!ResultOrErr) { 1949 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1950 << "-fdiagnostics-hotness-threshold="; 1951 } else { 1952 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1953 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1954 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1955 !UsingProfile) 1956 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1957 << "-fdiagnostics-hotness-threshold="; 1958 } 1959 } 1960 1961 if (auto *arg = 1962 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1963 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1964 1965 if (!ResultOrErr) { 1966 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1967 << "-fdiagnostics-misexpect-tolerance="; 1968 } else { 1969 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 1970 if ((!Opts.DiagnosticsMisExpectTolerance.hasValue() || 1971 Opts.DiagnosticsMisExpectTolerance.getValue() > 0) && 1972 !UsingProfile) 1973 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 1974 << "-fdiagnostics-misexpect-tolerance="; 1975 } 1976 } 1977 1978 // If the user requested to use a sample profile for PGO, then the 1979 // backend will need to track source location information so the profile 1980 // can be incorporated into the IR. 1981 if (UsingSampleProfile) 1982 NeedLocTracking = true; 1983 1984 if (!Opts.StackUsageOutput.empty()) 1985 NeedLocTracking = true; 1986 1987 // If the user requested a flag that requires source locations available in 1988 // the backend, make sure that the backend tracks source location information. 1989 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1990 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1991 1992 // Parse -fsanitize-recover= arguments. 1993 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1994 parseSanitizerKinds("-fsanitize-recover=", 1995 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1996 Opts.SanitizeRecover); 1997 parseSanitizerKinds("-fsanitize-trap=", 1998 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1999 Opts.SanitizeTrap); 2000 2001 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2002 2003 if (Args.hasArg(options::OPT_ffinite_loops)) 2004 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2005 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2006 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2007 2008 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2009 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2010 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2011 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2012 2013 return Diags.getNumErrors() == NumErrorsBefore; 2014 } 2015 2016 static void 2017 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2018 SmallVectorImpl<const char *> &Args, 2019 CompilerInvocation::StringAllocator SA) { 2020 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2021 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2022 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2023 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2024 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2025 MERGER, EXTRACTOR, TABLE_INDEX) \ 2026 GENERATE_OPTION_WITH_MARSHALLING( \ 2027 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2028 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2029 #include "clang/Driver/Options.inc" 2030 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2031 2032 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2033 GenerateArg(Args, OPT_show_includes, SA); 2034 2035 for (const auto &Dep : Opts.ExtraDeps) { 2036 switch (Dep.second) { 2037 case EDK_SanitizeIgnorelist: 2038 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2039 continue; 2040 case EDK_ModuleFile: 2041 // Module file arguments are generated from FrontendOptions and 2042 // HeaderSearchOptions. 2043 continue; 2044 case EDK_ProfileList: 2045 // Profile list arguments are generated from LanguageOptions via the 2046 // marshalling infrastructure. 2047 continue; 2048 case EDK_DepFileEntry: 2049 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2050 break; 2051 } 2052 } 2053 } 2054 2055 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2056 ArgList &Args, DiagnosticsEngine &Diags, 2057 frontend::ActionKind Action, 2058 bool ShowLineMarkers) { 2059 unsigned NumErrorsBefore = Diags.getNumErrors(); 2060 2061 DependencyOutputOptions &DependencyOutputOpts = Opts; 2062 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2063 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2064 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2065 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2066 MERGER, EXTRACTOR, TABLE_INDEX) \ 2067 PARSE_OPTION_WITH_MARSHALLING( \ 2068 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2069 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2070 #include "clang/Driver/Options.inc" 2071 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2072 2073 if (Args.hasArg(OPT_show_includes)) { 2074 // Writing both /showIncludes and preprocessor output to stdout 2075 // would produce interleaved output, so use stderr for /showIncludes. 2076 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2077 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2078 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2079 else 2080 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2081 } else { 2082 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2083 } 2084 2085 // Add sanitizer ignorelists as extra dependencies. 2086 // They won't be discovered by the regular preprocessor, so 2087 // we let make / ninja to know about this implicit dependency. 2088 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2089 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2090 StringRef Val = A->getValue(); 2091 if (!Val.contains('=')) 2092 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2093 } 2094 if (Opts.IncludeSystemHeaders) { 2095 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2096 StringRef Val = A->getValue(); 2097 if (!Val.contains('=')) 2098 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2099 } 2100 } 2101 } 2102 2103 // -fprofile-list= dependencies. 2104 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2105 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2106 2107 // Propagate the extra dependencies. 2108 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2109 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2110 2111 // Only the -fmodule-file=<file> form. 2112 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2113 StringRef Val = A->getValue(); 2114 if (!Val.contains('=')) 2115 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2116 } 2117 2118 return Diags.getNumErrors() == NumErrorsBefore; 2119 } 2120 2121 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2122 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2123 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2124 // Support both clang's -f[no-]color-diagnostics and gcc's 2125 // -f[no-]diagnostics-colors[=never|always|auto]. 2126 enum { 2127 Colors_On, 2128 Colors_Off, 2129 Colors_Auto 2130 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2131 for (auto *A : Args) { 2132 const Option &O = A->getOption(); 2133 if (O.matches(options::OPT_fcolor_diagnostics)) { 2134 ShowColors = Colors_On; 2135 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2136 ShowColors = Colors_Off; 2137 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2138 StringRef Value(A->getValue()); 2139 if (Value == "always") 2140 ShowColors = Colors_On; 2141 else if (Value == "never") 2142 ShowColors = Colors_Off; 2143 else if (Value == "auto") 2144 ShowColors = Colors_Auto; 2145 } 2146 } 2147 return ShowColors == Colors_On || 2148 (ShowColors == Colors_Auto && 2149 llvm::sys::Process::StandardErrHasColors()); 2150 } 2151 2152 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2153 DiagnosticsEngine &Diags) { 2154 bool Success = true; 2155 for (const auto &Prefix : VerifyPrefixes) { 2156 // Every prefix must start with a letter and contain only alphanumeric 2157 // characters, hyphens, and underscores. 2158 auto BadChar = llvm::find_if(Prefix, [](char C) { 2159 return !isAlphanumeric(C) && C != '-' && C != '_'; 2160 }); 2161 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2162 Success = false; 2163 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2164 Diags.Report(diag::note_drv_verify_prefix_spelling); 2165 } 2166 } 2167 return Success; 2168 } 2169 2170 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2171 SmallVectorImpl<const char *> &Args, 2172 CompilerInvocation::StringAllocator SA) { 2173 const FileSystemOptions &FileSystemOpts = Opts; 2174 2175 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2176 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2177 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2178 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2179 MERGER, EXTRACTOR, TABLE_INDEX) \ 2180 GENERATE_OPTION_WITH_MARSHALLING( \ 2181 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2182 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2183 #include "clang/Driver/Options.inc" 2184 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2185 } 2186 2187 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2188 DiagnosticsEngine &Diags) { 2189 unsigned NumErrorsBefore = Diags.getNumErrors(); 2190 2191 FileSystemOptions &FileSystemOpts = Opts; 2192 2193 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2194 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2195 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2196 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2197 MERGER, EXTRACTOR, TABLE_INDEX) \ 2198 PARSE_OPTION_WITH_MARSHALLING( \ 2199 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2200 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2201 #include "clang/Driver/Options.inc" 2202 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2203 2204 return Diags.getNumErrors() == NumErrorsBefore; 2205 } 2206 2207 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2208 SmallVectorImpl<const char *> &Args, 2209 CompilerInvocation::StringAllocator SA) { 2210 const MigratorOptions &MigratorOpts = Opts; 2211 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2212 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2213 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2214 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2215 MERGER, EXTRACTOR, TABLE_INDEX) \ 2216 GENERATE_OPTION_WITH_MARSHALLING( \ 2217 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2218 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2219 #include "clang/Driver/Options.inc" 2220 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2221 } 2222 2223 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2224 DiagnosticsEngine &Diags) { 2225 unsigned NumErrorsBefore = Diags.getNumErrors(); 2226 2227 MigratorOptions &MigratorOpts = Opts; 2228 2229 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2230 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2231 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2232 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2233 MERGER, EXTRACTOR, TABLE_INDEX) \ 2234 PARSE_OPTION_WITH_MARSHALLING( \ 2235 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2236 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2237 #include "clang/Driver/Options.inc" 2238 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2239 2240 return Diags.getNumErrors() == NumErrorsBefore; 2241 } 2242 2243 void CompilerInvocation::GenerateDiagnosticArgs( 2244 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2245 StringAllocator SA, bool DefaultDiagColor) { 2246 const DiagnosticOptions *DiagnosticOpts = &Opts; 2247 #define DIAG_OPTION_WITH_MARSHALLING( \ 2248 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2249 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2250 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2251 MERGER, EXTRACTOR, TABLE_INDEX) \ 2252 GENERATE_OPTION_WITH_MARSHALLING( \ 2253 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2254 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2255 #include "clang/Driver/Options.inc" 2256 #undef DIAG_OPTION_WITH_MARSHALLING 2257 2258 if (!Opts.DiagnosticSerializationFile.empty()) 2259 GenerateArg(Args, OPT_diagnostic_serialized_file, 2260 Opts.DiagnosticSerializationFile, SA); 2261 2262 if (Opts.ShowColors) 2263 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2264 2265 if (Opts.VerifyDiagnostics && 2266 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2267 GenerateArg(Args, OPT_verify, SA); 2268 2269 for (const auto &Prefix : Opts.VerifyPrefixes) 2270 if (Prefix != "expected") 2271 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2272 2273 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2274 if (VIU == DiagnosticLevelMask::None) { 2275 // This is the default, don't generate anything. 2276 } else if (VIU == DiagnosticLevelMask::All) { 2277 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2278 } else { 2279 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2280 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2281 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2282 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2283 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2284 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2285 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2286 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2287 } 2288 2289 for (const auto &Warning : Opts.Warnings) { 2290 // This option is automatically generated from UndefPrefixes. 2291 if (Warning == "undef-prefix") 2292 continue; 2293 Args.push_back(SA(StringRef("-W") + Warning)); 2294 } 2295 2296 for (const auto &Remark : Opts.Remarks) { 2297 // These arguments are generated from OptimizationRemark fields of 2298 // CodeGenOptions. 2299 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2300 "pass-analysis", "no-pass-analysis", 2301 "pass-missed", "no-pass-missed"}; 2302 if (llvm::is_contained(IgnoredRemarks, Remark)) 2303 continue; 2304 2305 Args.push_back(SA(StringRef("-R") + Remark)); 2306 } 2307 } 2308 2309 std::unique_ptr<DiagnosticOptions> 2310 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2311 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2312 unsigned MissingArgIndex, MissingArgCount; 2313 InputArgList Args = getDriverOptTable().ParseArgs( 2314 Argv.slice(1), MissingArgIndex, MissingArgCount); 2315 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2316 // Any errors that would be diagnosed here will also be diagnosed later, 2317 // when the DiagnosticsEngine actually exists. 2318 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2319 return DiagOpts; 2320 } 2321 2322 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2323 DiagnosticsEngine *Diags, 2324 bool DefaultDiagColor) { 2325 Optional<DiagnosticsEngine> IgnoringDiags; 2326 if (!Diags) { 2327 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2328 new IgnoringDiagConsumer()); 2329 Diags = &*IgnoringDiags; 2330 } 2331 2332 unsigned NumErrorsBefore = Diags->getNumErrors(); 2333 2334 // The key paths of diagnostic options defined in Options.td start with 2335 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2336 DiagnosticOptions *DiagnosticOpts = &Opts; 2337 2338 #define DIAG_OPTION_WITH_MARSHALLING( \ 2339 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2340 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2341 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2342 MERGER, EXTRACTOR, TABLE_INDEX) \ 2343 PARSE_OPTION_WITH_MARSHALLING( \ 2344 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2345 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2346 #include "clang/Driver/Options.inc" 2347 #undef DIAG_OPTION_WITH_MARSHALLING 2348 2349 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2350 2351 if (Arg *A = 2352 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2353 Opts.DiagnosticSerializationFile = A->getValue(); 2354 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2355 2356 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2357 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2358 if (Args.hasArg(OPT_verify)) 2359 Opts.VerifyPrefixes.push_back("expected"); 2360 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2361 // then sort it to prepare for fast lookup using std::binary_search. 2362 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2363 Opts.VerifyDiagnostics = false; 2364 else 2365 llvm::sort(Opts.VerifyPrefixes); 2366 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2367 parseDiagnosticLevelMask( 2368 "-verify-ignore-unexpected=", 2369 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2370 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2371 DiagMask = DiagnosticLevelMask::All; 2372 Opts.setVerifyIgnoreUnexpected(DiagMask); 2373 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2374 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2375 Diags->Report(diag::warn_ignoring_ftabstop_value) 2376 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2377 } 2378 2379 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2380 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2381 2382 return Diags->getNumErrors() == NumErrorsBefore; 2383 } 2384 2385 /// Parse the argument to the -ftest-module-file-extension 2386 /// command-line argument. 2387 /// 2388 /// \returns true on error, false on success. 2389 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2390 std::string &BlockName, 2391 unsigned &MajorVersion, 2392 unsigned &MinorVersion, 2393 bool &Hashed, 2394 std::string &UserInfo) { 2395 SmallVector<StringRef, 5> Args; 2396 Arg.split(Args, ':', 5); 2397 if (Args.size() < 5) 2398 return true; 2399 2400 BlockName = std::string(Args[0]); 2401 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2402 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2403 if (Args[3].getAsInteger(2, Hashed)) return true; 2404 if (Args.size() > 4) 2405 UserInfo = std::string(Args[4]); 2406 return false; 2407 } 2408 2409 /// Return a table that associates command line option specifiers with the 2410 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2411 /// intentionally missing, as this case is handled separately from other 2412 /// frontend options. 2413 static const auto &getFrontendActionTable() { 2414 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2415 {frontend::ASTDeclList, OPT_ast_list}, 2416 2417 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2418 {frontend::ASTDump, OPT_ast_dump_all}, 2419 {frontend::ASTDump, OPT_ast_dump_EQ}, 2420 {frontend::ASTDump, OPT_ast_dump}, 2421 {frontend::ASTDump, OPT_ast_dump_lookups}, 2422 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2423 2424 {frontend::ASTPrint, OPT_ast_print}, 2425 {frontend::ASTView, OPT_ast_view}, 2426 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2427 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2428 {frontend::DumpTokens, OPT_dump_tokens}, 2429 {frontend::EmitAssembly, OPT_S}, 2430 {frontend::EmitBC, OPT_emit_llvm_bc}, 2431 {frontend::EmitHTML, OPT_emit_html}, 2432 {frontend::EmitLLVM, OPT_emit_llvm}, 2433 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2434 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2435 {frontend::EmitObj, OPT_emit_obj}, 2436 {frontend::ExtractAPI, OPT_extract_api}, 2437 2438 {frontend::FixIt, OPT_fixit_EQ}, 2439 {frontend::FixIt, OPT_fixit}, 2440 2441 {frontend::GenerateModule, OPT_emit_module}, 2442 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2443 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2444 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2445 {frontend::GeneratePCH, OPT_emit_pch}, 2446 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2447 {frontend::InitOnly, OPT_init_only}, 2448 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2449 {frontend::ModuleFileInfo, OPT_module_file_info}, 2450 {frontend::VerifyPCH, OPT_verify_pch}, 2451 {frontend::PrintPreamble, OPT_print_preamble}, 2452 {frontend::PrintPreprocessedInput, OPT_E}, 2453 {frontend::TemplightDump, OPT_templight_dump}, 2454 {frontend::RewriteMacros, OPT_rewrite_macros}, 2455 {frontend::RewriteObjC, OPT_rewrite_objc}, 2456 {frontend::RewriteTest, OPT_rewrite_test}, 2457 {frontend::RunAnalysis, OPT_analyze}, 2458 {frontend::MigrateSource, OPT_migrate}, 2459 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2460 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2461 OPT_print_dependency_directives_minimized_source}, 2462 }; 2463 2464 return Table; 2465 } 2466 2467 /// Maps command line option to frontend action. 2468 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2469 for (const auto &ActionOpt : getFrontendActionTable()) 2470 if (ActionOpt.second == Opt.getID()) 2471 return ActionOpt.first; 2472 2473 return None; 2474 } 2475 2476 /// Maps frontend action to command line option. 2477 static Optional<OptSpecifier> 2478 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2479 for (const auto &ActionOpt : getFrontendActionTable()) 2480 if (ActionOpt.first == ProgramAction) 2481 return OptSpecifier(ActionOpt.second); 2482 2483 return None; 2484 } 2485 2486 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2487 SmallVectorImpl<const char *> &Args, 2488 CompilerInvocation::StringAllocator SA, 2489 bool IsHeader) { 2490 const FrontendOptions &FrontendOpts = Opts; 2491 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2492 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2493 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2494 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2495 MERGER, EXTRACTOR, TABLE_INDEX) \ 2496 GENERATE_OPTION_WITH_MARSHALLING( \ 2497 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2498 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2499 #include "clang/Driver/Options.inc" 2500 #undef FRONTEND_OPTION_WITH_MARSHALLING 2501 2502 Optional<OptSpecifier> ProgramActionOpt = 2503 getProgramActionOpt(Opts.ProgramAction); 2504 2505 // Generating a simple flag covers most frontend actions. 2506 std::function<void()> GenerateProgramAction = [&]() { 2507 GenerateArg(Args, *ProgramActionOpt, SA); 2508 }; 2509 2510 if (!ProgramActionOpt) { 2511 // PluginAction is the only program action handled separately. 2512 assert(Opts.ProgramAction == frontend::PluginAction && 2513 "Frontend action without option."); 2514 GenerateProgramAction = [&]() { 2515 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2516 }; 2517 } 2518 2519 // FIXME: Simplify the complex 'AST dump' command line. 2520 if (Opts.ProgramAction == frontend::ASTDump) { 2521 GenerateProgramAction = [&]() { 2522 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2523 // marshalling infrastructure. 2524 2525 if (Opts.ASTDumpFormat != ADOF_Default) { 2526 StringRef Format; 2527 switch (Opts.ASTDumpFormat) { 2528 case ADOF_Default: 2529 llvm_unreachable("Default AST dump format."); 2530 case ADOF_JSON: 2531 Format = "json"; 2532 break; 2533 } 2534 2535 if (Opts.ASTDumpAll) 2536 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2537 if (Opts.ASTDumpDecls) 2538 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2539 } else { 2540 if (Opts.ASTDumpAll) 2541 GenerateArg(Args, OPT_ast_dump_all, SA); 2542 if (Opts.ASTDumpDecls) 2543 GenerateArg(Args, OPT_ast_dump, SA); 2544 } 2545 }; 2546 } 2547 2548 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2549 GenerateProgramAction = [&]() { 2550 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2551 }; 2552 } 2553 2554 GenerateProgramAction(); 2555 2556 for (const auto &PluginArgs : Opts.PluginArgs) { 2557 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2558 const char *Spelling = 2559 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2560 for (const auto &PluginArg : PluginArgs.second) 2561 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2562 } 2563 2564 for (const auto &Ext : Opts.ModuleFileExtensions) 2565 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2566 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2567 2568 if (!Opts.CodeCompletionAt.FileName.empty()) 2569 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2570 SA); 2571 2572 for (const auto &Plugin : Opts.Plugins) 2573 GenerateArg(Args, OPT_load, Plugin, SA); 2574 2575 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2576 2577 for (const auto &ModuleFile : Opts.ModuleFiles) 2578 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2579 2580 if (Opts.AuxTargetCPU.hasValue()) 2581 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2582 2583 if (Opts.AuxTargetFeatures.hasValue()) 2584 for (const auto &Feature : *Opts.AuxTargetFeatures) 2585 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2586 2587 { 2588 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2589 StringRef ModuleMap = 2590 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2591 StringRef HeaderUnit = ""; 2592 switch (Opts.DashX.getHeaderUnitKind()) { 2593 case InputKind::HeaderUnit_None: 2594 break; 2595 case InputKind::HeaderUnit_User: 2596 HeaderUnit = "-user"; 2597 break; 2598 case InputKind::HeaderUnit_System: 2599 HeaderUnit = "-system"; 2600 break; 2601 case InputKind::HeaderUnit_Abs: 2602 HeaderUnit = "-header-unit"; 2603 break; 2604 } 2605 StringRef Header = IsHeader ? "-header" : ""; 2606 2607 StringRef Lang; 2608 switch (Opts.DashX.getLanguage()) { 2609 case Language::C: 2610 Lang = "c"; 2611 break; 2612 case Language::OpenCL: 2613 Lang = "cl"; 2614 break; 2615 case Language::OpenCLCXX: 2616 Lang = "clcpp"; 2617 break; 2618 case Language::CUDA: 2619 Lang = "cuda"; 2620 break; 2621 case Language::HIP: 2622 Lang = "hip"; 2623 break; 2624 case Language::CXX: 2625 Lang = "c++"; 2626 break; 2627 case Language::ObjC: 2628 Lang = "objective-c"; 2629 break; 2630 case Language::ObjCXX: 2631 Lang = "objective-c++"; 2632 break; 2633 case Language::RenderScript: 2634 Lang = "renderscript"; 2635 break; 2636 case Language::Asm: 2637 Lang = "assembler-with-cpp"; 2638 break; 2639 case Language::Unknown: 2640 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2641 "Generating -x argument for unknown language (not precompiled)."); 2642 Lang = "ast"; 2643 break; 2644 case Language::LLVM_IR: 2645 Lang = "ir"; 2646 break; 2647 case Language::HLSL: 2648 Lang = "hlsl"; 2649 break; 2650 } 2651 2652 GenerateArg(Args, OPT_x, 2653 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2654 } 2655 2656 // OPT_INPUT has a unique class, generate it directly. 2657 for (const auto &Input : Opts.Inputs) 2658 Args.push_back(SA(Input.getFile())); 2659 } 2660 2661 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2662 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2663 unsigned NumErrorsBefore = Diags.getNumErrors(); 2664 2665 FrontendOptions &FrontendOpts = Opts; 2666 2667 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2668 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2669 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2670 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2671 MERGER, EXTRACTOR, TABLE_INDEX) \ 2672 PARSE_OPTION_WITH_MARSHALLING( \ 2673 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2674 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2675 #include "clang/Driver/Options.inc" 2676 #undef FRONTEND_OPTION_WITH_MARSHALLING 2677 2678 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2679 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2680 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2681 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2682 assert(ProgramAction && "Option specifier not in Action_Group."); 2683 2684 if (ProgramAction == frontend::ASTDump && 2685 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2686 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2687 .CaseLower("default", ADOF_Default) 2688 .CaseLower("json", ADOF_JSON) 2689 .Default(std::numeric_limits<unsigned>::max()); 2690 2691 if (Val != std::numeric_limits<unsigned>::max()) 2692 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2693 else { 2694 Diags.Report(diag::err_drv_invalid_value) 2695 << A->getAsString(Args) << A->getValue(); 2696 Opts.ASTDumpFormat = ADOF_Default; 2697 } 2698 } 2699 2700 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2701 Opts.FixItSuffix = A->getValue(); 2702 2703 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2704 StringRef ArgStr = 2705 Args.hasArg(OPT_interface_stub_version_EQ) 2706 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2707 : "ifs-v1"; 2708 if (ArgStr == "experimental-yaml-elf-v1" || 2709 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2710 ArgStr == "experimental-tapi-elf-v1") { 2711 std::string ErrorMessage = 2712 "Invalid interface stub format: " + ArgStr.str() + 2713 " is deprecated."; 2714 Diags.Report(diag::err_drv_invalid_value) 2715 << "Must specify a valid interface stub format type, ie: " 2716 "-interface-stub-version=ifs-v1" 2717 << ErrorMessage; 2718 ProgramAction = frontend::ParseSyntaxOnly; 2719 } else if (!ArgStr.startswith("ifs-")) { 2720 std::string ErrorMessage = 2721 "Invalid interface stub format: " + ArgStr.str() + "."; 2722 Diags.Report(diag::err_drv_invalid_value) 2723 << "Must specify a valid interface stub format type, ie: " 2724 "-interface-stub-version=ifs-v1" 2725 << ErrorMessage; 2726 ProgramAction = frontend::ParseSyntaxOnly; 2727 } 2728 } 2729 2730 Opts.ProgramAction = *ProgramAction; 2731 } 2732 2733 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2734 Opts.Plugins.emplace_back(A->getValue(0)); 2735 Opts.ProgramAction = frontend::PluginAction; 2736 Opts.ActionName = A->getValue(); 2737 } 2738 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2739 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2740 2741 for (const std::string &Arg : 2742 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2743 std::string BlockName; 2744 unsigned MajorVersion; 2745 unsigned MinorVersion; 2746 bool Hashed; 2747 std::string UserInfo; 2748 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2749 MinorVersion, Hashed, UserInfo)) { 2750 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2751 2752 continue; 2753 } 2754 2755 // Add the testing module file extension. 2756 Opts.ModuleFileExtensions.push_back( 2757 std::make_shared<TestModuleFileExtension>( 2758 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2759 } 2760 2761 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2762 Opts.CodeCompletionAt = 2763 ParsedSourceLocation::FromString(A->getValue()); 2764 if (Opts.CodeCompletionAt.FileName.empty()) 2765 Diags.Report(diag::err_drv_invalid_value) 2766 << A->getAsString(Args) << A->getValue(); 2767 } 2768 2769 Opts.Plugins = Args.getAllArgValues(OPT_load); 2770 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2771 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2772 // Only the -fmodule-file=<file> form. 2773 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2774 StringRef Val = A->getValue(); 2775 if (!Val.contains('=')) 2776 Opts.ModuleFiles.push_back(std::string(Val)); 2777 } 2778 2779 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2780 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2781 << "-emit-module"; 2782 2783 if (Args.hasArg(OPT_aux_target_cpu)) 2784 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2785 if (Args.hasArg(OPT_aux_target_feature)) 2786 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2787 2788 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2789 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2790 Diags.Report(diag::err_drv_argument_not_allowed_with) 2791 << "ARC migration" << "ObjC migration"; 2792 } 2793 2794 InputKind DashX(Language::Unknown); 2795 if (const Arg *A = Args.getLastArg(OPT_x)) { 2796 StringRef XValue = A->getValue(); 2797 2798 // Parse suffixes: 2799 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2800 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2801 bool Preprocessed = XValue.consume_back("-cpp-output"); 2802 bool ModuleMap = XValue.consume_back("-module-map"); 2803 // Detect and consume the header indicator. 2804 bool IsHeader = 2805 XValue != "precompiled-header" && XValue.consume_back("-header"); 2806 2807 // If we have c++-{user,system}-header, that indicates a header unit input 2808 // likewise, if the user put -fmodule-header together with a header with an 2809 // absolute path (header-unit-header). 2810 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2811 if (IsHeader || Preprocessed) { 2812 if (XValue.consume_back("-header-unit")) 2813 HUK = InputKind::HeaderUnit_Abs; 2814 else if (XValue.consume_back("-system")) 2815 HUK = InputKind::HeaderUnit_System; 2816 else if (XValue.consume_back("-user")) 2817 HUK = InputKind::HeaderUnit_User; 2818 } 2819 2820 // The value set by this processing is an un-preprocessed source which is 2821 // not intended to be a module map or header unit. 2822 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2823 HUK == InputKind::HeaderUnit_None; 2824 2825 // Principal languages. 2826 DashX = llvm::StringSwitch<InputKind>(XValue) 2827 .Case("c", Language::C) 2828 .Case("cl", Language::OpenCL) 2829 .Case("clcpp", Language::OpenCLCXX) 2830 .Case("cuda", Language::CUDA) 2831 .Case("hip", Language::HIP) 2832 .Case("c++", Language::CXX) 2833 .Case("objective-c", Language::ObjC) 2834 .Case("objective-c++", Language::ObjCXX) 2835 .Case("renderscript", Language::RenderScript) 2836 .Case("hlsl", Language::HLSL) 2837 .Default(Language::Unknown); 2838 2839 // "objc[++]-cpp-output" is an acceptable synonym for 2840 // "objective-c[++]-cpp-output". 2841 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2842 HUK == InputKind::HeaderUnit_None) 2843 DashX = llvm::StringSwitch<InputKind>(XValue) 2844 .Case("objc", Language::ObjC) 2845 .Case("objc++", Language::ObjCXX) 2846 .Default(Language::Unknown); 2847 2848 // Some special cases cannot be combined with suffixes. 2849 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2850 HUK == InputKind::HeaderUnit_None) 2851 DashX = llvm::StringSwitch<InputKind>(XValue) 2852 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2853 .Case("assembler-with-cpp", Language::Asm) 2854 .Cases("ast", "pcm", "precompiled-header", 2855 InputKind(Language::Unknown, InputKind::Precompiled)) 2856 .Case("ir", Language::LLVM_IR) 2857 .Default(Language::Unknown); 2858 2859 if (DashX.isUnknown()) 2860 Diags.Report(diag::err_drv_invalid_value) 2861 << A->getAsString(Args) << A->getValue(); 2862 2863 if (Preprocessed) 2864 DashX = DashX.getPreprocessed(); 2865 // A regular header is considered mutually exclusive with a header unit. 2866 if (HUK != InputKind::HeaderUnit_None) { 2867 DashX = DashX.withHeaderUnit(HUK); 2868 IsHeaderFile = true; 2869 } else if (IsHeaderFile) 2870 DashX = DashX.getHeader(); 2871 if (ModuleMap) 2872 DashX = DashX.withFormat(InputKind::ModuleMap); 2873 } 2874 2875 // '-' is the default input if none is given. 2876 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2877 Opts.Inputs.clear(); 2878 if (Inputs.empty()) 2879 Inputs.push_back("-"); 2880 2881 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2882 Inputs.size() > 1) 2883 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2884 2885 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2886 InputKind IK = DashX; 2887 if (IK.isUnknown()) { 2888 IK = FrontendOptions::getInputKindForExtension( 2889 StringRef(Inputs[i]).rsplit('.').second); 2890 // FIXME: Warn on this? 2891 if (IK.isUnknown()) 2892 IK = Language::C; 2893 // FIXME: Remove this hack. 2894 if (i == 0) 2895 DashX = IK; 2896 } 2897 2898 bool IsSystem = false; 2899 2900 // The -emit-module action implicitly takes a module map. 2901 if (Opts.ProgramAction == frontend::GenerateModule && 2902 IK.getFormat() == InputKind::Source) { 2903 IK = IK.withFormat(InputKind::ModuleMap); 2904 IsSystem = Opts.IsSystemModule; 2905 } 2906 2907 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2908 } 2909 2910 Opts.DashX = DashX; 2911 2912 return Diags.getNumErrors() == NumErrorsBefore; 2913 } 2914 2915 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2916 void *MainAddr) { 2917 std::string ClangExecutable = 2918 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2919 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2920 } 2921 2922 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2923 SmallVectorImpl<const char *> &Args, 2924 CompilerInvocation::StringAllocator SA) { 2925 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2926 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2927 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2928 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2929 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2930 MERGER, EXTRACTOR, TABLE_INDEX) \ 2931 GENERATE_OPTION_WITH_MARSHALLING( \ 2932 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2933 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2934 #include "clang/Driver/Options.inc" 2935 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2936 2937 if (Opts.UseLibcxx) 2938 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2939 2940 if (!Opts.ModuleCachePath.empty()) 2941 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2942 2943 for (const auto &File : Opts.PrebuiltModuleFiles) 2944 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2945 2946 for (const auto &Path : Opts.PrebuiltModulePaths) 2947 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2948 2949 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2950 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2951 2952 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2953 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2954 llvm::Optional<bool> IsFramework, 2955 llvm::Optional<bool> IgnoreSysRoot) { 2956 return llvm::is_contained(Groups, Entry.Group) && 2957 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2958 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2959 }; 2960 2961 auto It = Opts.UserEntries.begin(); 2962 auto End = Opts.UserEntries.end(); 2963 2964 // Add -I..., -F..., and -index-header-map options in order. 2965 for (; It < End && 2966 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2967 ++It) { 2968 OptSpecifier Opt = [It, Matches]() { 2969 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2970 return OPT_F; 2971 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2972 return OPT_I; 2973 if (Matches(*It, frontend::Angled, true, true)) 2974 return OPT_F; 2975 if (Matches(*It, frontend::Angled, false, true)) 2976 return OPT_I; 2977 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2978 }(); 2979 2980 if (It->Group == frontend::IndexHeaderMap) 2981 GenerateArg(Args, OPT_index_header_map, SA); 2982 GenerateArg(Args, Opt, It->Path, SA); 2983 }; 2984 2985 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2986 // have already been generated as "-I[xx]yy". If that's the case, their 2987 // position on command line was such that this has no semantic impact on 2988 // include paths. 2989 for (; It < End && 2990 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2991 ++It) { 2992 OptSpecifier Opt = 2993 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2994 GenerateArg(Args, Opt, It->Path, SA); 2995 } 2996 2997 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2998 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2999 // command line was such that this has no semantic impact on include paths. 3000 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3001 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3002 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3003 GenerateArg(Args, OPT_iquote, It->Path, SA); 3004 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3005 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3006 It->Path, SA); 3007 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3008 GenerateArg(Args, OPT_iframework, It->Path, SA); 3009 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3010 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3011 3012 // Add the paths for the various language specific isystem flags. 3013 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3014 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3015 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3016 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3017 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3018 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3019 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3020 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3021 3022 // Add the internal paths from a driver that detects standard include paths. 3023 // Note: Some paths that came from "-internal-isystem" arguments may have 3024 // already been generated as "-isystem". If that's the case, their position on 3025 // command line was such that this has no semantic impact on include paths. 3026 for (; It < End && 3027 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3028 ++It) { 3029 OptSpecifier Opt = It->Group == frontend::System 3030 ? OPT_internal_isystem 3031 : OPT_internal_externc_isystem; 3032 GenerateArg(Args, Opt, It->Path, SA); 3033 } 3034 3035 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3036 3037 // Add the path prefixes which are implicitly treated as being system headers. 3038 for (const auto &P : Opts.SystemHeaderPrefixes) { 3039 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3040 : OPT_no_system_header_prefix; 3041 GenerateArg(Args, Opt, P.Prefix, SA); 3042 } 3043 3044 for (const std::string &F : Opts.VFSOverlayFiles) 3045 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3046 } 3047 3048 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3049 DiagnosticsEngine &Diags, 3050 const std::string &WorkingDir) { 3051 unsigned NumErrorsBefore = Diags.getNumErrors(); 3052 3053 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3054 3055 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3056 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3057 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3058 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3059 MERGER, EXTRACTOR, TABLE_INDEX) \ 3060 PARSE_OPTION_WITH_MARSHALLING( \ 3061 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3062 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3063 #include "clang/Driver/Options.inc" 3064 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3065 3066 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3067 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3068 3069 // Canonicalize -fmodules-cache-path before storing it. 3070 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3071 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3072 if (WorkingDir.empty()) 3073 llvm::sys::fs::make_absolute(P); 3074 else 3075 llvm::sys::fs::make_absolute(WorkingDir, P); 3076 } 3077 llvm::sys::path::remove_dots(P); 3078 Opts.ModuleCachePath = std::string(P.str()); 3079 3080 // Only the -fmodule-file=<name>=<file> form. 3081 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3082 StringRef Val = A->getValue(); 3083 if (Val.contains('=')) { 3084 auto Split = Val.split('='); 3085 Opts.PrebuiltModuleFiles.insert( 3086 {std::string(Split.first), std::string(Split.second)}); 3087 } 3088 } 3089 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3090 Opts.AddPrebuiltModulePath(A->getValue()); 3091 3092 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3093 StringRef MacroDef = A->getValue(); 3094 Opts.ModulesIgnoreMacros.insert( 3095 llvm::CachedHashString(MacroDef.split('=').first)); 3096 } 3097 3098 // Add -I..., -F..., and -index-header-map options in order. 3099 bool IsIndexHeaderMap = false; 3100 bool IsSysrootSpecified = 3101 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3102 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3103 if (A->getOption().matches(OPT_index_header_map)) { 3104 // -index-header-map applies to the next -I or -F. 3105 IsIndexHeaderMap = true; 3106 continue; 3107 } 3108 3109 frontend::IncludeDirGroup Group = 3110 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3111 3112 bool IsFramework = A->getOption().matches(OPT_F); 3113 std::string Path = A->getValue(); 3114 3115 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3116 SmallString<32> Buffer; 3117 llvm::sys::path::append(Buffer, Opts.Sysroot, 3118 llvm::StringRef(A->getValue()).substr(1)); 3119 Path = std::string(Buffer.str()); 3120 } 3121 3122 Opts.AddPath(Path, Group, IsFramework, 3123 /*IgnoreSysroot*/ true); 3124 IsIndexHeaderMap = false; 3125 } 3126 3127 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3128 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3129 for (const auto *A : 3130 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3131 if (A->getOption().matches(OPT_iprefix)) 3132 Prefix = A->getValue(); 3133 else if (A->getOption().matches(OPT_iwithprefix)) 3134 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3135 else 3136 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3137 } 3138 3139 for (const auto *A : Args.filtered(OPT_idirafter)) 3140 Opts.AddPath(A->getValue(), frontend::After, false, true); 3141 for (const auto *A : Args.filtered(OPT_iquote)) 3142 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3143 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3144 Opts.AddPath(A->getValue(), frontend::System, false, 3145 !A->getOption().matches(OPT_iwithsysroot)); 3146 for (const auto *A : Args.filtered(OPT_iframework)) 3147 Opts.AddPath(A->getValue(), frontend::System, true, true); 3148 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3149 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3150 /*IgnoreSysRoot=*/false); 3151 3152 // Add the paths for the various language specific isystem flags. 3153 for (const auto *A : Args.filtered(OPT_c_isystem)) 3154 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3155 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3156 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3157 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3158 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3159 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3160 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3161 3162 // Add the internal paths from a driver that detects standard include paths. 3163 for (const auto *A : 3164 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3165 frontend::IncludeDirGroup Group = frontend::System; 3166 if (A->getOption().matches(OPT_internal_externc_isystem)) 3167 Group = frontend::ExternCSystem; 3168 Opts.AddPath(A->getValue(), Group, false, true); 3169 } 3170 3171 // Add the path prefixes which are implicitly treated as being system headers. 3172 for (const auto *A : 3173 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3174 Opts.AddSystemHeaderPrefix( 3175 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3176 3177 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3178 Opts.AddVFSOverlayFile(A->getValue()); 3179 3180 return Diags.getNumErrors() == NumErrorsBefore; 3181 } 3182 3183 /// Check if input file kind and language standard are compatible. 3184 static bool IsInputCompatibleWithStandard(InputKind IK, 3185 const LangStandard &S) { 3186 switch (IK.getLanguage()) { 3187 case Language::Unknown: 3188 case Language::LLVM_IR: 3189 llvm_unreachable("should not parse language flags for this input"); 3190 3191 case Language::C: 3192 case Language::ObjC: 3193 case Language::RenderScript: 3194 return S.getLanguage() == Language::C; 3195 3196 case Language::OpenCL: 3197 return S.getLanguage() == Language::OpenCL || 3198 S.getLanguage() == Language::OpenCLCXX; 3199 3200 case Language::OpenCLCXX: 3201 return S.getLanguage() == Language::OpenCLCXX; 3202 3203 case Language::CXX: 3204 case Language::ObjCXX: 3205 return S.getLanguage() == Language::CXX; 3206 3207 case Language::CUDA: 3208 // FIXME: What -std= values should be permitted for CUDA compilations? 3209 return S.getLanguage() == Language::CUDA || 3210 S.getLanguage() == Language::CXX; 3211 3212 case Language::HIP: 3213 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3214 3215 case Language::Asm: 3216 // Accept (and ignore) all -std= values. 3217 // FIXME: The -std= value is not ignored; it affects the tokenization 3218 // and preprocessing rules if we're preprocessing this asm input. 3219 return true; 3220 3221 case Language::HLSL: 3222 return S.getLanguage() == Language::HLSL; 3223 } 3224 3225 llvm_unreachable("unexpected input language"); 3226 } 3227 3228 /// Get language name for given input kind. 3229 static StringRef GetInputKindName(InputKind IK) { 3230 switch (IK.getLanguage()) { 3231 case Language::C: 3232 return "C"; 3233 case Language::ObjC: 3234 return "Objective-C"; 3235 case Language::CXX: 3236 return "C++"; 3237 case Language::ObjCXX: 3238 return "Objective-C++"; 3239 case Language::OpenCL: 3240 return "OpenCL"; 3241 case Language::OpenCLCXX: 3242 return "C++ for OpenCL"; 3243 case Language::CUDA: 3244 return "CUDA"; 3245 case Language::RenderScript: 3246 return "RenderScript"; 3247 case Language::HIP: 3248 return "HIP"; 3249 3250 case Language::Asm: 3251 return "Asm"; 3252 case Language::LLVM_IR: 3253 return "LLVM IR"; 3254 3255 case Language::HLSL: 3256 return "HLSL"; 3257 3258 case Language::Unknown: 3259 break; 3260 } 3261 llvm_unreachable("unknown input language"); 3262 } 3263 3264 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3265 SmallVectorImpl<const char *> &Args, 3266 StringAllocator SA, 3267 const llvm::Triple &T, InputKind IK) { 3268 if (IK.getFormat() == InputKind::Precompiled || 3269 IK.getLanguage() == Language::LLVM_IR) { 3270 if (Opts.ObjCAutoRefCount) 3271 GenerateArg(Args, OPT_fobjc_arc, SA); 3272 if (Opts.PICLevel != 0) 3273 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3274 if (Opts.PIE) 3275 GenerateArg(Args, OPT_pic_is_pie, SA); 3276 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3277 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3278 3279 return; 3280 } 3281 3282 OptSpecifier StdOpt; 3283 switch (Opts.LangStd) { 3284 case LangStandard::lang_opencl10: 3285 case LangStandard::lang_opencl11: 3286 case LangStandard::lang_opencl12: 3287 case LangStandard::lang_opencl20: 3288 case LangStandard::lang_opencl30: 3289 case LangStandard::lang_openclcpp10: 3290 case LangStandard::lang_openclcpp2021: 3291 StdOpt = OPT_cl_std_EQ; 3292 break; 3293 default: 3294 StdOpt = OPT_std_EQ; 3295 break; 3296 } 3297 3298 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3299 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3300 3301 if (Opts.IncludeDefaultHeader) 3302 GenerateArg(Args, OPT_finclude_default_header, SA); 3303 if (Opts.DeclareOpenCLBuiltins) 3304 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3305 3306 const LangOptions *LangOpts = &Opts; 3307 3308 #define LANG_OPTION_WITH_MARSHALLING( \ 3309 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3310 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3311 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3312 MERGER, EXTRACTOR, TABLE_INDEX) \ 3313 GENERATE_OPTION_WITH_MARSHALLING( \ 3314 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3315 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3316 #include "clang/Driver/Options.inc" 3317 #undef LANG_OPTION_WITH_MARSHALLING 3318 3319 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3320 3321 if (Opts.ObjC) { 3322 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3323 3324 if (Opts.GC == LangOptions::GCOnly) 3325 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3326 else if (Opts.GC == LangOptions::HybridGC) 3327 GenerateArg(Args, OPT_fobjc_gc, SA); 3328 else if (Opts.ObjCAutoRefCount == 1) 3329 GenerateArg(Args, OPT_fobjc_arc, SA); 3330 3331 if (Opts.ObjCWeakRuntime) 3332 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3333 3334 if (Opts.ObjCWeak) 3335 GenerateArg(Args, OPT_fobjc_weak, SA); 3336 3337 if (Opts.ObjCSubscriptingLegacyRuntime) 3338 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3339 } 3340 3341 if (Opts.GNUCVersion != 0) { 3342 unsigned Major = Opts.GNUCVersion / 100 / 100; 3343 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3344 unsigned Patch = Opts.GNUCVersion % 100; 3345 GenerateArg(Args, OPT_fgnuc_version_EQ, 3346 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3347 } 3348 3349 if (Opts.IgnoreXCOFFVisibility) 3350 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3351 3352 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3353 GenerateArg(Args, OPT_ftrapv, SA); 3354 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3355 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3356 GenerateArg(Args, OPT_fwrapv, SA); 3357 } 3358 3359 if (Opts.MSCompatibilityVersion != 0) { 3360 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3361 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3362 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3363 GenerateArg(Args, OPT_fms_compatibility_version, 3364 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3365 } 3366 3367 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3368 if (!Opts.Trigraphs) 3369 GenerateArg(Args, OPT_fno_trigraphs, SA); 3370 } else { 3371 if (Opts.Trigraphs) 3372 GenerateArg(Args, OPT_ftrigraphs, SA); 3373 } 3374 3375 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3376 GenerateArg(Args, OPT_fblocks, SA); 3377 3378 if (Opts.ConvergentFunctions && 3379 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3380 GenerateArg(Args, OPT_fconvergent_functions, SA); 3381 3382 if (Opts.NoBuiltin && !Opts.Freestanding) 3383 GenerateArg(Args, OPT_fno_builtin, SA); 3384 3385 if (!Opts.NoBuiltin) 3386 for (const auto &Func : Opts.NoBuiltinFuncs) 3387 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3388 3389 if (Opts.LongDoubleSize == 128) 3390 GenerateArg(Args, OPT_mlong_double_128, SA); 3391 else if (Opts.LongDoubleSize == 64) 3392 GenerateArg(Args, OPT_mlong_double_64, SA); 3393 else if (Opts.LongDoubleSize == 80) 3394 GenerateArg(Args, OPT_mlong_double_80, SA); 3395 3396 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3397 3398 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3399 // '-fopenmp-targets='. 3400 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3401 GenerateArg(Args, OPT_fopenmp, SA); 3402 3403 if (Opts.OpenMP != 50) 3404 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3405 3406 if (!Opts.OpenMPUseTLS) 3407 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3408 3409 if (Opts.OpenMPIsDevice) 3410 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3411 3412 if (Opts.OpenMPIRBuilder) 3413 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3414 } 3415 3416 if (Opts.OpenMPSimd) { 3417 GenerateArg(Args, OPT_fopenmp_simd, SA); 3418 3419 if (Opts.OpenMP != 50) 3420 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3421 } 3422 3423 if (Opts.OpenMPThreadSubscription) 3424 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3425 3426 if (Opts.OpenMPTeamSubscription) 3427 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3428 3429 if (Opts.OpenMPTargetDebug != 0) 3430 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3431 Twine(Opts.OpenMPTargetDebug), SA); 3432 3433 if (Opts.OpenMPCUDANumSMs != 0) 3434 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3435 Twine(Opts.OpenMPCUDANumSMs), SA); 3436 3437 if (Opts.OpenMPCUDABlocksPerSM != 0) 3438 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3439 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3440 3441 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3442 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3443 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3444 3445 if (!Opts.OMPTargetTriples.empty()) { 3446 std::string Targets; 3447 llvm::raw_string_ostream OS(Targets); 3448 llvm::interleave( 3449 Opts.OMPTargetTriples, OS, 3450 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3451 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3452 } 3453 3454 if (!Opts.OMPHostIRFile.empty()) 3455 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3456 3457 if (Opts.OpenMPCUDAMode) 3458 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3459 3460 if (Opts.OpenMPCUDAForceFullRuntime) 3461 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3462 3463 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3464 // generated from CodeGenOptions. 3465 3466 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3467 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3468 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3469 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3470 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3471 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3472 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3473 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3474 3475 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3476 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3477 3478 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3479 for (const std::string &F : Opts.NoSanitizeFiles) 3480 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3481 3482 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3483 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3484 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3485 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3486 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3487 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3488 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3489 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3490 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3491 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3492 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3493 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3494 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3495 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3496 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3497 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3498 3499 if (Opts.getSignReturnAddressScope() == 3500 LangOptions::SignReturnAddressScopeKind::All) 3501 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3502 else if (Opts.getSignReturnAddressScope() == 3503 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3504 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3505 3506 if (Opts.getSignReturnAddressKey() == 3507 LangOptions::SignReturnAddressKeyKind::BKey) 3508 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3509 3510 if (Opts.CXXABI) 3511 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3512 SA); 3513 3514 if (Opts.RelativeCXXABIVTables) 3515 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3516 else 3517 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3518 3519 if (Opts.UseTargetPathSeparator) 3520 GenerateArg(Args, OPT_ffile_reproducible, SA); 3521 else 3522 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3523 3524 for (const auto &MP : Opts.MacroPrefixMap) 3525 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3526 3527 if (!Opts.RandstructSeed.empty()) 3528 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3529 } 3530 3531 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3532 InputKind IK, const llvm::Triple &T, 3533 std::vector<std::string> &Includes, 3534 DiagnosticsEngine &Diags) { 3535 unsigned NumErrorsBefore = Diags.getNumErrors(); 3536 3537 if (IK.getFormat() == InputKind::Precompiled || 3538 IK.getLanguage() == Language::LLVM_IR) { 3539 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3540 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3541 // what the input type is. 3542 if (Args.hasArg(OPT_fobjc_arc)) 3543 Opts.ObjCAutoRefCount = 1; 3544 // PICLevel and PIELevel are needed during code generation and this should 3545 // be set regardless of the input type. 3546 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3547 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3548 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3549 Diags, Opts.Sanitize); 3550 3551 return Diags.getNumErrors() == NumErrorsBefore; 3552 } 3553 3554 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3555 // FIXME: Should we really be parsing this for an Language::Asm input? 3556 3557 // FIXME: Cleanup per-file based stuff. 3558 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3559 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3560 LangStd = LangStandard::getLangKind(A->getValue()); 3561 if (LangStd == LangStandard::lang_unspecified) { 3562 Diags.Report(diag::err_drv_invalid_value) 3563 << A->getAsString(Args) << A->getValue(); 3564 // Report supported standards with short description. 3565 for (unsigned KindValue = 0; 3566 KindValue != LangStandard::lang_unspecified; 3567 ++KindValue) { 3568 const LangStandard &Std = LangStandard::getLangStandardForKind( 3569 static_cast<LangStandard::Kind>(KindValue)); 3570 if (IsInputCompatibleWithStandard(IK, Std)) { 3571 auto Diag = Diags.Report(diag::note_drv_use_standard); 3572 Diag << Std.getName() << Std.getDescription(); 3573 unsigned NumAliases = 0; 3574 #define LANGSTANDARD(id, name, lang, desc, features) 3575 #define LANGSTANDARD_ALIAS(id, alias) \ 3576 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3577 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3578 #include "clang/Basic/LangStandards.def" 3579 Diag << NumAliases; 3580 #define LANGSTANDARD(id, name, lang, desc, features) 3581 #define LANGSTANDARD_ALIAS(id, alias) \ 3582 if (KindValue == LangStandard::lang_##id) Diag << alias; 3583 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3584 #include "clang/Basic/LangStandards.def" 3585 } 3586 } 3587 } else { 3588 // Valid standard, check to make sure language and standard are 3589 // compatible. 3590 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3591 if (!IsInputCompatibleWithStandard(IK, Std)) { 3592 Diags.Report(diag::err_drv_argument_not_allowed_with) 3593 << A->getAsString(Args) << GetInputKindName(IK); 3594 } 3595 } 3596 } 3597 3598 // -cl-std only applies for OpenCL language standards. 3599 // Override the -std option in this case. 3600 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3601 LangStandard::Kind OpenCLLangStd 3602 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3603 .Cases("cl", "CL", LangStandard::lang_opencl10) 3604 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3605 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3606 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3607 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3608 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3609 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3610 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3611 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3612 .Default(LangStandard::lang_unspecified); 3613 3614 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3615 Diags.Report(diag::err_drv_invalid_value) 3616 << A->getAsString(Args) << A->getValue(); 3617 } 3618 else 3619 LangStd = OpenCLLangStd; 3620 } 3621 3622 // These need to be parsed now. They are used to set OpenCL defaults. 3623 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3624 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3625 3626 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3627 3628 // The key paths of codegen options defined in Options.td start with 3629 // "LangOpts->". Let's provide the expected variable name and type. 3630 LangOptions *LangOpts = &Opts; 3631 3632 #define LANG_OPTION_WITH_MARSHALLING( \ 3633 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3634 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3635 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3636 MERGER, EXTRACTOR, TABLE_INDEX) \ 3637 PARSE_OPTION_WITH_MARSHALLING( \ 3638 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3639 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3640 #include "clang/Driver/Options.inc" 3641 #undef LANG_OPTION_WITH_MARSHALLING 3642 3643 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3644 StringRef Name = A->getValue(); 3645 if (Name == "full" || Name == "branch") { 3646 Opts.CFProtectionBranch = 1; 3647 } 3648 } 3649 3650 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3651 !Args.hasArg(OPT_sycl_std_EQ)) { 3652 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3653 // provide -sycl-std=, we want to default it to whatever the default SYCL 3654 // version is. I could not find a way to express this with the options 3655 // tablegen because we still want this value to be SYCL_None when the user 3656 // is not in device or host mode. 3657 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3658 } 3659 3660 if (Opts.ObjC) { 3661 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3662 StringRef value = arg->getValue(); 3663 if (Opts.ObjCRuntime.tryParse(value)) 3664 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3665 } 3666 3667 if (Args.hasArg(OPT_fobjc_gc_only)) 3668 Opts.setGC(LangOptions::GCOnly); 3669 else if (Args.hasArg(OPT_fobjc_gc)) 3670 Opts.setGC(LangOptions::HybridGC); 3671 else if (Args.hasArg(OPT_fobjc_arc)) { 3672 Opts.ObjCAutoRefCount = 1; 3673 if (!Opts.ObjCRuntime.allowsARC()) 3674 Diags.Report(diag::err_arc_unsupported_on_runtime); 3675 } 3676 3677 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3678 // whether the feature is actually enabled. This is predominantly 3679 // determined by -fobjc-runtime, but we allow it to be overridden 3680 // from the command line for testing purposes. 3681 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3682 Opts.ObjCWeakRuntime = 1; 3683 else 3684 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3685 3686 // ObjCWeak determines whether __weak is actually enabled. 3687 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3688 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3689 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3690 assert(!Opts.ObjCWeak); 3691 } else if (Opts.getGC() != LangOptions::NonGC) { 3692 Diags.Report(diag::err_objc_weak_with_gc); 3693 } else if (!Opts.ObjCWeakRuntime) { 3694 Diags.Report(diag::err_objc_weak_unsupported); 3695 } else { 3696 Opts.ObjCWeak = 1; 3697 } 3698 } else if (Opts.ObjCAutoRefCount) { 3699 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3700 } 3701 3702 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3703 Opts.ObjCSubscriptingLegacyRuntime = 3704 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3705 } 3706 3707 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3708 // Check that the version has 1 to 3 components and the minor and patch 3709 // versions fit in two decimal digits. 3710 VersionTuple GNUCVer; 3711 bool Invalid = GNUCVer.tryParse(A->getValue()); 3712 unsigned Major = GNUCVer.getMajor(); 3713 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3714 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3715 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3716 Diags.Report(diag::err_drv_invalid_value) 3717 << A->getAsString(Args) << A->getValue(); 3718 } 3719 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3720 } 3721 3722 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3723 Opts.IgnoreXCOFFVisibility = 1; 3724 3725 if (Args.hasArg(OPT_ftrapv)) { 3726 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3727 // Set the handler, if one is specified. 3728 Opts.OverflowHandler = 3729 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3730 } 3731 else if (Args.hasArg(OPT_fwrapv)) 3732 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3733 3734 Opts.MSCompatibilityVersion = 0; 3735 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3736 VersionTuple VT; 3737 if (VT.tryParse(A->getValue())) 3738 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3739 << A->getValue(); 3740 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3741 VT.getMinor().getValueOr(0) * 100000 + 3742 VT.getSubminor().getValueOr(0); 3743 } 3744 3745 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3746 // is specified, or -std is set to a conforming mode. 3747 // Trigraphs are disabled by default in c++1z onwards. 3748 // For z/OS, trigraphs are enabled by default (without regard to the above). 3749 Opts.Trigraphs = 3750 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3751 Opts.Trigraphs = 3752 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3753 3754 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3755 && Opts.OpenCLVersion == 200); 3756 3757 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3758 Opts.SYCLIsDevice || 3759 Args.hasArg(OPT_fconvergent_functions); 3760 3761 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3762 if (!Opts.NoBuiltin) 3763 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3764 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3765 if (A->getOption().matches(options::OPT_mlong_double_64)) 3766 Opts.LongDoubleSize = 64; 3767 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3768 Opts.LongDoubleSize = 80; 3769 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3770 Opts.LongDoubleSize = 128; 3771 else 3772 Opts.LongDoubleSize = 0; 3773 } 3774 if (Opts.FastRelaxedMath) 3775 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3776 3777 llvm::sort(Opts.ModuleFeatures); 3778 3779 // -mrtd option 3780 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3781 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3782 Diags.Report(diag::err_drv_argument_not_allowed_with) 3783 << A->getSpelling() << "-fdefault-calling-conv"; 3784 else { 3785 if (T.getArch() != llvm::Triple::x86) 3786 Diags.Report(diag::err_drv_argument_not_allowed_with) 3787 << A->getSpelling() << T.getTriple(); 3788 else 3789 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3790 } 3791 } 3792 3793 // Check if -fopenmp is specified and set default version to 5.0. 3794 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3795 // Check if -fopenmp-simd is specified. 3796 bool IsSimdSpecified = 3797 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3798 /*Default=*/false); 3799 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3800 Opts.OpenMPUseTLS = 3801 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3802 Opts.OpenMPIsDevice = 3803 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3804 Opts.OpenMPIRBuilder = 3805 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3806 bool IsTargetSpecified = 3807 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3808 3809 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3810 3811 if (Opts.OpenMP || Opts.OpenMPSimd) { 3812 if (int Version = getLastArgIntValue( 3813 Args, OPT_fopenmp_version_EQ, 3814 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3815 Opts.OpenMP = Version; 3816 // Provide diagnostic when a given target is not expected to be an OpenMP 3817 // device or host. 3818 if (!Opts.OpenMPIsDevice) { 3819 switch (T.getArch()) { 3820 default: 3821 break; 3822 // Add unsupported host targets here: 3823 case llvm::Triple::nvptx: 3824 case llvm::Triple::nvptx64: 3825 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3826 break; 3827 } 3828 } 3829 } 3830 3831 // Set the flag to prevent the implementation from emitting device exception 3832 // handling code for those requiring so. 3833 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3834 Opts.OpenCLCPlusPlus) { 3835 3836 Opts.Exceptions = 0; 3837 Opts.CXXExceptions = 0; 3838 } 3839 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3840 Opts.OpenMPCUDANumSMs = 3841 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3842 Opts.OpenMPCUDANumSMs, Diags); 3843 Opts.OpenMPCUDABlocksPerSM = 3844 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3845 Opts.OpenMPCUDABlocksPerSM, Diags); 3846 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3847 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3848 Opts.OpenMPCUDAReductionBufNum, Diags); 3849 } 3850 3851 // Set the value of the debugging flag used in the new offloading device RTL. 3852 // Set either by a specific value or to a default if not specified. 3853 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3854 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3855 Opts.OpenMPTargetDebug = getLastArgIntValue( 3856 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3857 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3858 Opts.OpenMPTargetDebug = 1; 3859 } 3860 3861 if (Opts.OpenMPIsDevice) { 3862 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3863 Opts.OpenMPTeamSubscription = true; 3864 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3865 Opts.OpenMPThreadSubscription = true; 3866 } 3867 3868 // Get the OpenMP target triples if any. 3869 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3870 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3871 auto getArchPtrSize = [](const llvm::Triple &T) { 3872 if (T.isArch16Bit()) 3873 return Arch16Bit; 3874 if (T.isArch32Bit()) 3875 return Arch32Bit; 3876 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3877 return Arch64Bit; 3878 }; 3879 3880 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3881 llvm::Triple TT(A->getValue(i)); 3882 3883 if (TT.getArch() == llvm::Triple::UnknownArch || 3884 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3885 TT.getArch() == llvm::Triple::nvptx || 3886 TT.getArch() == llvm::Triple::nvptx64 || 3887 TT.getArch() == llvm::Triple::amdgcn || 3888 TT.getArch() == llvm::Triple::x86 || 3889 TT.getArch() == llvm::Triple::x86_64)) 3890 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3891 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3892 Diags.Report(diag::err_drv_incompatible_omp_arch) 3893 << A->getValue(i) << T.str(); 3894 else 3895 Opts.OMPTargetTriples.push_back(TT); 3896 } 3897 } 3898 3899 // Get OpenMP host file path if any and report if a non existent file is 3900 // found 3901 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3902 Opts.OMPHostIRFile = A->getValue(); 3903 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3904 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3905 << Opts.OMPHostIRFile; 3906 } 3907 3908 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3909 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3910 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3911 3912 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3913 Opts.OpenMPCUDAForceFullRuntime = 3914 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3915 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3916 3917 // FIXME: Eliminate this dependency. 3918 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3919 OptSize = getOptimizationLevelSize(Args); 3920 Opts.Optimize = Opt != 0; 3921 Opts.OptimizeSize = OptSize != 0; 3922 3923 // This is the __NO_INLINE__ define, which just depends on things like the 3924 // optimization level and -fno-inline, not actually whether the backend has 3925 // inlining enabled. 3926 Opts.NoInlineDefine = !Opts.Optimize; 3927 if (Arg *InlineArg = Args.getLastArg( 3928 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3929 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3930 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3931 Opts.NoInlineDefine = true; 3932 3933 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3934 StringRef Val = A->getValue(); 3935 if (Val == "fast") 3936 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3937 else if (Val == "on") 3938 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3939 else if (Val == "off") 3940 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3941 else if (Val == "fast-honor-pragmas") 3942 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3943 else 3944 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3945 } 3946 3947 // Parse -fsanitize= arguments. 3948 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3949 Diags, Opts.Sanitize); 3950 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3951 std::vector<std::string> systemIgnorelists = 3952 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3953 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3954 systemIgnorelists.begin(), 3955 systemIgnorelists.end()); 3956 3957 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3958 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3959 3960 StringRef Ver = A->getValue(); 3961 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3962 unsigned Major, Minor = 0; 3963 3964 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3965 // y or y.0 (4 <= y <= current version). 3966 if (!VerParts.first.startswith("0") && 3967 !VerParts.first.getAsInteger(10, Major) && 3968 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3969 (Major == 3 ? VerParts.second.size() == 1 && 3970 !VerParts.second.getAsInteger(10, Minor) 3971 : VerParts.first.size() == Ver.size() || 3972 VerParts.second == "0")) { 3973 // Got a valid version number. 3974 if (Major == 3 && Minor <= 8) 3975 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3976 else if (Major <= 4) 3977 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3978 else if (Major <= 6) 3979 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3980 else if (Major <= 7) 3981 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3982 else if (Major <= 9) 3983 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3984 else if (Major <= 11) 3985 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3986 else if (Major <= 12) 3987 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 3988 else if (Major <= 14) 3989 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 3990 } else if (Ver != "latest") { 3991 Diags.Report(diag::err_drv_invalid_value) 3992 << A->getAsString(Args) << A->getValue(); 3993 } 3994 } 3995 3996 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3997 StringRef SignScope = A->getValue(); 3998 3999 if (SignScope.equals_insensitive("none")) 4000 Opts.setSignReturnAddressScope( 4001 LangOptions::SignReturnAddressScopeKind::None); 4002 else if (SignScope.equals_insensitive("all")) 4003 Opts.setSignReturnAddressScope( 4004 LangOptions::SignReturnAddressScopeKind::All); 4005 else if (SignScope.equals_insensitive("non-leaf")) 4006 Opts.setSignReturnAddressScope( 4007 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4008 else 4009 Diags.Report(diag::err_drv_invalid_value) 4010 << A->getAsString(Args) << SignScope; 4011 4012 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4013 StringRef SignKey = A->getValue(); 4014 if (!SignScope.empty() && !SignKey.empty()) { 4015 if (SignKey.equals_insensitive("a_key")) 4016 Opts.setSignReturnAddressKey( 4017 LangOptions::SignReturnAddressKeyKind::AKey); 4018 else if (SignKey.equals_insensitive("b_key")) 4019 Opts.setSignReturnAddressKey( 4020 LangOptions::SignReturnAddressKeyKind::BKey); 4021 else 4022 Diags.Report(diag::err_drv_invalid_value) 4023 << A->getAsString(Args) << SignKey; 4024 } 4025 } 4026 } 4027 4028 // The value can be empty, which indicates the system default should be used. 4029 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4030 if (!CXXABI.empty()) { 4031 if (!TargetCXXABI::isABI(CXXABI)) { 4032 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4033 } else { 4034 auto Kind = TargetCXXABI::getKind(CXXABI); 4035 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4036 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4037 else 4038 Opts.CXXABI = Kind; 4039 } 4040 } 4041 4042 Opts.RelativeCXXABIVTables = 4043 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4044 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4045 TargetCXXABI::usesRelativeVTables(T)); 4046 4047 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4048 auto Split = StringRef(A).split('='); 4049 Opts.MacroPrefixMap.insert( 4050 {std::string(Split.first), std::string(Split.second)}); 4051 } 4052 4053 Opts.UseTargetPathSeparator = 4054 !Args.getLastArg(OPT_fno_file_reproducible) && 4055 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4056 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4057 Args.getLastArg(OPT_ffile_reproducible)); 4058 4059 // Error if -mvscale-min is unbounded. 4060 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4061 unsigned VScaleMin; 4062 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4063 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4064 } 4065 4066 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4067 std::ifstream SeedFile(A->getValue(0)); 4068 4069 if (!SeedFile.is_open()) 4070 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4071 << A->getValue(0); 4072 4073 std::getline(SeedFile, Opts.RandstructSeed); 4074 } 4075 4076 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4077 Opts.RandstructSeed = A->getValue(0); 4078 4079 return Diags.getNumErrors() == NumErrorsBefore; 4080 } 4081 4082 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4083 switch (Action) { 4084 case frontend::ASTDeclList: 4085 case frontend::ASTDump: 4086 case frontend::ASTPrint: 4087 case frontend::ASTView: 4088 case frontend::EmitAssembly: 4089 case frontend::EmitBC: 4090 case frontend::EmitHTML: 4091 case frontend::EmitLLVM: 4092 case frontend::EmitLLVMOnly: 4093 case frontend::EmitCodeGenOnly: 4094 case frontend::EmitObj: 4095 case frontend::ExtractAPI: 4096 case frontend::FixIt: 4097 case frontend::GenerateModule: 4098 case frontend::GenerateModuleInterface: 4099 case frontend::GenerateHeaderModule: 4100 case frontend::GenerateHeaderUnit: 4101 case frontend::GeneratePCH: 4102 case frontend::GenerateInterfaceStubs: 4103 case frontend::ParseSyntaxOnly: 4104 case frontend::ModuleFileInfo: 4105 case frontend::VerifyPCH: 4106 case frontend::PluginAction: 4107 case frontend::RewriteObjC: 4108 case frontend::RewriteTest: 4109 case frontend::RunAnalysis: 4110 case frontend::TemplightDump: 4111 case frontend::MigrateSource: 4112 return false; 4113 4114 case frontend::DumpCompilerOptions: 4115 case frontend::DumpRawTokens: 4116 case frontend::DumpTokens: 4117 case frontend::InitOnly: 4118 case frontend::PrintPreamble: 4119 case frontend::PrintPreprocessedInput: 4120 case frontend::RewriteMacros: 4121 case frontend::RunPreprocessorOnly: 4122 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4123 return true; 4124 } 4125 llvm_unreachable("invalid frontend action"); 4126 } 4127 4128 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4129 SmallVectorImpl<const char *> &Args, 4130 CompilerInvocation::StringAllocator SA, 4131 const LangOptions &LangOpts, 4132 const FrontendOptions &FrontendOpts, 4133 const CodeGenOptions &CodeGenOpts) { 4134 PreprocessorOptions *PreprocessorOpts = &Opts; 4135 4136 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4137 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4138 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4139 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4140 MERGER, EXTRACTOR, TABLE_INDEX) \ 4141 GENERATE_OPTION_WITH_MARSHALLING( \ 4142 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4143 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4144 #include "clang/Driver/Options.inc" 4145 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4146 4147 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4148 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4149 4150 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4151 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4152 4153 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4154 GenerateArg(Args, OPT_preamble_bytes_EQ, 4155 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4156 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4157 SA); 4158 4159 for (const auto &M : Opts.Macros) { 4160 // Don't generate __CET__ macro definitions. They are implied by the 4161 // -fcf-protection option that is generated elsewhere. 4162 if (M.first == "__CET__=1" && !M.second && 4163 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4164 continue; 4165 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4166 !CodeGenOpts.CFProtectionBranch) 4167 continue; 4168 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4169 CodeGenOpts.CFProtectionBranch) 4170 continue; 4171 4172 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4173 } 4174 4175 for (const auto &I : Opts.Includes) { 4176 // Don't generate OpenCL includes. They are implied by other flags that are 4177 // generated elsewhere. 4178 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4179 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4180 I == "opencl-c.h")) 4181 continue; 4182 // Don't generate HLSL includes. They are implied by other flags that are 4183 // generated elsewhere. 4184 if (LangOpts.HLSL && I == "hlsl.h") 4185 continue; 4186 4187 GenerateArg(Args, OPT_include, I, SA); 4188 } 4189 4190 for (const auto &CI : Opts.ChainedIncludes) 4191 GenerateArg(Args, OPT_chain_include, CI, SA); 4192 4193 for (const auto &RF : Opts.RemappedFiles) 4194 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4195 4196 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4197 // generated elsewhere. 4198 } 4199 4200 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4201 DiagnosticsEngine &Diags, 4202 frontend::ActionKind Action, 4203 const FrontendOptions &FrontendOpts) { 4204 unsigned NumErrorsBefore = Diags.getNumErrors(); 4205 4206 PreprocessorOptions *PreprocessorOpts = &Opts; 4207 4208 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4209 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4210 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4211 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4212 MERGER, EXTRACTOR, TABLE_INDEX) \ 4213 PARSE_OPTION_WITH_MARSHALLING( \ 4214 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4215 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4216 #include "clang/Driver/Options.inc" 4217 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4218 4219 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4220 Args.hasArg(OPT_pch_through_hdrstop_use); 4221 4222 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4223 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4224 4225 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4226 StringRef Value(A->getValue()); 4227 size_t Comma = Value.find(','); 4228 unsigned Bytes = 0; 4229 unsigned EndOfLine = 0; 4230 4231 if (Comma == StringRef::npos || 4232 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4233 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4234 Diags.Report(diag::err_drv_preamble_format); 4235 else { 4236 Opts.PrecompiledPreambleBytes.first = Bytes; 4237 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4238 } 4239 } 4240 4241 // Add the __CET__ macro if a CFProtection option is set. 4242 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4243 StringRef Name = A->getValue(); 4244 if (Name == "branch") 4245 Opts.addMacroDef("__CET__=1"); 4246 else if (Name == "return") 4247 Opts.addMacroDef("__CET__=2"); 4248 else if (Name == "full") 4249 Opts.addMacroDef("__CET__=3"); 4250 } 4251 4252 // Add macros from the command line. 4253 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4254 if (A->getOption().matches(OPT_D)) 4255 Opts.addMacroDef(A->getValue()); 4256 else 4257 Opts.addMacroUndef(A->getValue()); 4258 } 4259 4260 // Add the ordered list of -includes. 4261 for (const auto *A : Args.filtered(OPT_include)) 4262 Opts.Includes.emplace_back(A->getValue()); 4263 4264 for (const auto *A : Args.filtered(OPT_chain_include)) 4265 Opts.ChainedIncludes.emplace_back(A->getValue()); 4266 4267 for (const auto *A : Args.filtered(OPT_remap_file)) { 4268 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4269 4270 if (Split.second.empty()) { 4271 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4272 continue; 4273 } 4274 4275 Opts.addRemappedFile(Split.first, Split.second); 4276 } 4277 4278 // Always avoid lexing editor placeholders when we're just running the 4279 // preprocessor as we never want to emit the 4280 // "editor placeholder in source file" error in PP only mode. 4281 if (isStrictlyPreprocessorAction(Action)) 4282 Opts.LexEditorPlaceholders = false; 4283 4284 return Diags.getNumErrors() == NumErrorsBefore; 4285 } 4286 4287 static void GeneratePreprocessorOutputArgs( 4288 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4289 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4290 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4291 4292 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4293 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4294 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4295 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4296 MERGER, EXTRACTOR, TABLE_INDEX) \ 4297 GENERATE_OPTION_WITH_MARSHALLING( \ 4298 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4299 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4300 #include "clang/Driver/Options.inc" 4301 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4302 4303 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4304 if (Generate_dM) 4305 GenerateArg(Args, OPT_dM, SA); 4306 if (!Generate_dM && Opts.ShowMacros) 4307 GenerateArg(Args, OPT_dD, SA); 4308 if (Opts.DirectivesOnly) 4309 GenerateArg(Args, OPT_fdirectives_only, SA); 4310 } 4311 4312 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4313 ArgList &Args, DiagnosticsEngine &Diags, 4314 frontend::ActionKind Action) { 4315 unsigned NumErrorsBefore = Diags.getNumErrors(); 4316 4317 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4318 4319 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4320 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4321 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4322 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4323 MERGER, EXTRACTOR, TABLE_INDEX) \ 4324 PARSE_OPTION_WITH_MARSHALLING( \ 4325 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4326 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4327 #include "clang/Driver/Options.inc" 4328 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4329 4330 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4331 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4332 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4333 4334 return Diags.getNumErrors() == NumErrorsBefore; 4335 } 4336 4337 static void GenerateTargetArgs(const TargetOptions &Opts, 4338 SmallVectorImpl<const char *> &Args, 4339 CompilerInvocation::StringAllocator SA) { 4340 const TargetOptions *TargetOpts = &Opts; 4341 #define TARGET_OPTION_WITH_MARSHALLING( \ 4342 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4343 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4344 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4345 MERGER, EXTRACTOR, TABLE_INDEX) \ 4346 GENERATE_OPTION_WITH_MARSHALLING( \ 4347 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4348 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4349 #include "clang/Driver/Options.inc" 4350 #undef TARGET_OPTION_WITH_MARSHALLING 4351 4352 if (!Opts.SDKVersion.empty()) 4353 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4354 SA); 4355 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4356 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4357 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4358 } 4359 4360 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4361 DiagnosticsEngine &Diags) { 4362 unsigned NumErrorsBefore = Diags.getNumErrors(); 4363 4364 TargetOptions *TargetOpts = &Opts; 4365 4366 #define TARGET_OPTION_WITH_MARSHALLING( \ 4367 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4368 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4369 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4370 MERGER, EXTRACTOR, TABLE_INDEX) \ 4371 PARSE_OPTION_WITH_MARSHALLING( \ 4372 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4373 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4374 #include "clang/Driver/Options.inc" 4375 #undef TARGET_OPTION_WITH_MARSHALLING 4376 4377 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4378 llvm::VersionTuple Version; 4379 if (Version.tryParse(A->getValue())) 4380 Diags.Report(diag::err_drv_invalid_value) 4381 << A->getAsString(Args) << A->getValue(); 4382 else 4383 Opts.SDKVersion = Version; 4384 } 4385 if (Arg *A = 4386 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4387 llvm::VersionTuple Version; 4388 if (Version.tryParse(A->getValue())) 4389 Diags.Report(diag::err_drv_invalid_value) 4390 << A->getAsString(Args) << A->getValue(); 4391 else 4392 Opts.DarwinTargetVariantSDKVersion = Version; 4393 } 4394 4395 return Diags.getNumErrors() == NumErrorsBefore; 4396 } 4397 4398 bool CompilerInvocation::CreateFromArgsImpl( 4399 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4400 DiagnosticsEngine &Diags, const char *Argv0) { 4401 unsigned NumErrorsBefore = Diags.getNumErrors(); 4402 4403 // Parse the arguments. 4404 const OptTable &Opts = getDriverOptTable(); 4405 const unsigned IncludedFlagsBitmask = options::CC1Option; 4406 unsigned MissingArgIndex, MissingArgCount; 4407 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4408 MissingArgCount, IncludedFlagsBitmask); 4409 LangOptions &LangOpts = *Res.getLangOpts(); 4410 4411 // Check for missing argument error. 4412 if (MissingArgCount) 4413 Diags.Report(diag::err_drv_missing_argument) 4414 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4415 4416 // Issue errors on unknown arguments. 4417 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4418 auto ArgString = A->getAsString(Args); 4419 std::string Nearest; 4420 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4421 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4422 else 4423 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4424 << ArgString << Nearest; 4425 } 4426 4427 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4428 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4429 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4430 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4431 /*DefaultDiagColor=*/false); 4432 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4433 // FIXME: We shouldn't have to pass the DashX option around here 4434 InputKind DashX = Res.getFrontendOpts().DashX; 4435 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4436 llvm::Triple T(Res.getTargetOpts().Triple); 4437 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4438 Res.getFileSystemOpts().WorkingDir); 4439 4440 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4441 Diags); 4442 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4443 LangOpts.ObjCExceptions = 1; 4444 4445 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4446 if (Warning == "misexpect" && 4447 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4448 Res.getCodeGenOpts().MisExpect = true; 4449 } 4450 } 4451 4452 if (LangOpts.CUDA) { 4453 // During CUDA device-side compilation, the aux triple is the 4454 // triple used for host compilation. 4455 if (LangOpts.CUDAIsDevice) 4456 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4457 } 4458 4459 // Set the triple of the host for OpenMP device compile. 4460 if (LangOpts.OpenMPIsDevice) 4461 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4462 4463 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4464 Res.getFrontendOpts().OutputFile, LangOpts); 4465 4466 // FIXME: Override value name discarding when asan or msan is used because the 4467 // backend passes depend on the name of the alloca in order to print out 4468 // names. 4469 Res.getCodeGenOpts().DiscardValueNames &= 4470 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4471 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4472 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4473 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4474 4475 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4476 Res.getFrontendOpts().ProgramAction, 4477 Res.getFrontendOpts()); 4478 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4479 Res.getFrontendOpts().ProgramAction); 4480 4481 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4482 Res.getFrontendOpts().ProgramAction, 4483 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4484 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4485 Res.getDependencyOutputOpts().Targets.empty()) 4486 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4487 4488 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4489 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4490 !Res.getLangOpts()->Sanitize.empty()) { 4491 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4492 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4493 } 4494 4495 // Store the command-line for using in the CodeView backend. 4496 Res.getCodeGenOpts().Argv0 = Argv0; 4497 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4498 4499 FixupInvocation(Res, Diags, Args, DashX); 4500 4501 return Diags.getNumErrors() == NumErrorsBefore; 4502 } 4503 4504 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4505 ArrayRef<const char *> CommandLineArgs, 4506 DiagnosticsEngine &Diags, 4507 const char *Argv0) { 4508 CompilerInvocation DummyInvocation; 4509 4510 return RoundTrip( 4511 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4512 DiagnosticsEngine &Diags, const char *Argv0) { 4513 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4514 }, 4515 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4516 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4517 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4518 } 4519 4520 std::string CompilerInvocation::getModuleHash() const { 4521 // FIXME: Consider using SHA1 instead of MD5. 4522 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4523 4524 // Note: For QoI reasons, the things we use as a hash here should all be 4525 // dumped via the -module-info flag. 4526 4527 // Start the signature with the compiler version. 4528 HBuilder.add(getClangFullRepositoryVersion()); 4529 4530 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4531 // and getClangFullRepositoryVersion() doesn't include git revision. 4532 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4533 4534 // Extend the signature with the language options 4535 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4536 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4537 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4538 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4539 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4540 #include "clang/Basic/LangOptions.def" 4541 4542 HBuilder.addRange(LangOpts->ModuleFeatures); 4543 4544 HBuilder.add(LangOpts->ObjCRuntime); 4545 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4546 4547 // Extend the signature with the target options. 4548 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4549 TargetOpts->ABI); 4550 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4551 4552 // Extend the signature with preprocessor options. 4553 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4554 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4555 4556 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4557 for (const auto &Macro : getPreprocessorOpts().Macros) { 4558 // If we're supposed to ignore this macro for the purposes of modules, 4559 // don't put it into the hash. 4560 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4561 // Check whether we're ignoring this macro. 4562 StringRef MacroDef = Macro.first; 4563 if (hsOpts.ModulesIgnoreMacros.count( 4564 llvm::CachedHashString(MacroDef.split('=').first))) 4565 continue; 4566 } 4567 4568 HBuilder.add(Macro); 4569 } 4570 4571 // Extend the signature with the sysroot and other header search options. 4572 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4573 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4574 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4575 hsOpts.ModulesValidateDiagnosticOptions); 4576 HBuilder.add(hsOpts.ResourceDir); 4577 4578 if (hsOpts.ModulesStrictContextHash) { 4579 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4580 HBuilder.addRange(hsOpts.UserEntries); 4581 4582 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4583 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4584 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4585 HBuilder.add(diagOpts.get##Name()); 4586 #include "clang/Basic/DiagnosticOptions.def" 4587 #undef DIAGOPT 4588 #undef ENUM_DIAGOPT 4589 } 4590 4591 // Extend the signature with the user build path. 4592 HBuilder.add(hsOpts.ModuleUserBuildPath); 4593 4594 // Extend the signature with the module file extensions. 4595 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4596 ext->hashExtension(HBuilder); 4597 4598 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4599 // affects the debug info in the PCM. 4600 if (getCodeGenOpts().DebugTypeExtRefs) 4601 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4602 4603 // Extend the signature with the enabled sanitizers, if at least one is 4604 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4605 SanitizerSet SanHash = LangOpts->Sanitize; 4606 SanHash.clear(getPPTransparentSanitizers()); 4607 if (!SanHash.empty()) 4608 HBuilder.add(SanHash.Mask); 4609 4610 llvm::MD5::MD5Result Result; 4611 HBuilder.getHasher().final(Result); 4612 uint64_t Hash = Result.high() ^ Result.low(); 4613 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4614 } 4615 4616 void CompilerInvocation::generateCC1CommandLine( 4617 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4618 llvm::Triple T(TargetOpts->Triple); 4619 4620 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4621 GenerateMigratorArgs(MigratorOpts, Args, SA); 4622 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4623 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4624 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4625 GenerateTargetArgs(*TargetOpts, Args, SA); 4626 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4627 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4628 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4629 &*LangOpts); 4630 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4631 CodeGenOpts); 4632 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4633 FrontendOpts.ProgramAction); 4634 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4635 } 4636 4637 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4638 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4639 DiagnosticsEngine &Diags) { 4640 return createVFSFromCompilerInvocation(CI, Diags, 4641 llvm::vfs::getRealFileSystem()); 4642 } 4643 4644 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4645 clang::createVFSFromCompilerInvocation( 4646 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4647 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4648 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4649 return BaseFS; 4650 4651 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4652 // earlier vfs files are on the bottom 4653 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4654 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4655 Result->getBufferForFile(File); 4656 if (!Buffer) { 4657 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4658 continue; 4659 } 4660 4661 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4662 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4663 /*DiagContext*/ nullptr, Result); 4664 if (!FS) { 4665 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4666 continue; 4667 } 4668 4669 Result = FS; 4670 } 4671 return Result; 4672 } 4673