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/Diagnostic.h" 16 #include "clang/Basic/DiagnosticDriver.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/TextDiagnosticBuffer.h" 41 #include "clang/Frontend/Utils.h" 42 #include "clang/Lex/HeaderSearchOptions.h" 43 #include "clang/Lex/PreprocessorOptions.h" 44 #include "clang/Sema/CodeCompleteOptions.h" 45 #include "clang/Serialization/ASTBitCodes.h" 46 #include "clang/Serialization/ModuleFileExtension.h" 47 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 48 #include "llvm/ADT/APInt.h" 49 #include "llvm/ADT/ArrayRef.h" 50 #include "llvm/ADT/CachedHashString.h" 51 #include "llvm/ADT/DenseSet.h" 52 #include "llvm/ADT/FloatingPointMode.h" 53 #include "llvm/ADT/Hashing.h" 54 #include "llvm/ADT/STLExtras.h" 55 #include "llvm/ADT/SmallString.h" 56 #include "llvm/ADT/SmallVector.h" 57 #include "llvm/ADT/StringRef.h" 58 #include "llvm/ADT/StringSwitch.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/Config/llvm-config.h" 61 #include "llvm/Frontend/Debug/Options.h" 62 #include "llvm/IR/DebugInfoMetadata.h" 63 #include "llvm/Linker/Linker.h" 64 #include "llvm/MC/MCTargetOptions.h" 65 #include "llvm/Option/Arg.h" 66 #include "llvm/Option/ArgList.h" 67 #include "llvm/Option/OptSpecifier.h" 68 #include "llvm/Option/OptTable.h" 69 #include "llvm/Option/Option.h" 70 #include "llvm/ProfileData/InstrProfReader.h" 71 #include "llvm/Remarks/HotnessThresholdParser.h" 72 #include "llvm/Support/CodeGen.h" 73 #include "llvm/Support/Compiler.h" 74 #include "llvm/Support/Error.h" 75 #include "llvm/Support/ErrorHandling.h" 76 #include "llvm/Support/ErrorOr.h" 77 #include "llvm/Support/FileSystem.h" 78 #include "llvm/Support/HashBuilder.h" 79 #include "llvm/Support/MathExtras.h" 80 #include "llvm/Support/MemoryBuffer.h" 81 #include "llvm/Support/Path.h" 82 #include "llvm/Support/Process.h" 83 #include "llvm/Support/Regex.h" 84 #include "llvm/Support/VersionTuple.h" 85 #include "llvm/Support/VirtualFileSystem.h" 86 #include "llvm/Support/raw_ostream.h" 87 #include "llvm/Target/TargetOptions.h" 88 #include "llvm/TargetParser/Host.h" 89 #include "llvm/TargetParser/Triple.h" 90 #include <algorithm> 91 #include <atomic> 92 #include <cassert> 93 #include <cstddef> 94 #include <cstring> 95 #include <ctime> 96 #include <fstream> 97 #include <limits> 98 #include <memory> 99 #include <optional> 100 #include <string> 101 #include <tuple> 102 #include <type_traits> 103 #include <utility> 104 #include <vector> 105 106 using namespace clang; 107 using namespace driver; 108 using namespace options; 109 using namespace llvm::opt; 110 111 //===----------------------------------------------------------------------===// 112 // Helpers. 113 //===----------------------------------------------------------------------===// 114 115 // Parse misexpect tolerance argument value. 116 // Valid option values are integers in the range [0, 100) 117 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 118 uint32_t Val; 119 if (Arg.getAsInteger(10, Val)) 120 return llvm::createStringError(llvm::inconvertibleErrorCode(), 121 "Not an integer: %s", Arg.data()); 122 return Val; 123 } 124 125 //===----------------------------------------------------------------------===// 126 // Initialization. 127 //===----------------------------------------------------------------------===// 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase() 130 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 131 DiagnosticOpts(new DiagnosticOptions()), 132 HeaderSearchOpts(new HeaderSearchOptions()), 133 PreprocessorOpts(new PreprocessorOptions()), 134 AnalyzerOpts(new AnalyzerOptions()) {} 135 136 CompilerInvocationRefBase::CompilerInvocationRefBase( 137 const CompilerInvocationRefBase &X) 138 : LangOpts(new LangOptions(*X.getLangOpts())), 139 TargetOpts(new TargetOptions(X.getTargetOpts())), 140 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 141 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 142 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 143 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 144 145 CompilerInvocationRefBase::CompilerInvocationRefBase( 146 CompilerInvocationRefBase &&X) = default; 147 148 CompilerInvocationRefBase & 149 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 150 LangOpts.swap(X.LangOpts); 151 TargetOpts.swap(X.TargetOpts); 152 DiagnosticOpts.swap(X.DiagnosticOpts); 153 HeaderSearchOpts.swap(X.HeaderSearchOpts); 154 PreprocessorOpts.swap(X.PreprocessorOpts); 155 AnalyzerOpts.swap(X.AnalyzerOpts); 156 return *this; 157 } 158 159 CompilerInvocationRefBase & 160 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 161 162 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 163 164 //===----------------------------------------------------------------------===// 165 // Normalizers 166 //===----------------------------------------------------------------------===// 167 168 using ArgumentConsumer = CompilerInvocation::ArgumentConsumer; 169 170 #define SIMPLE_ENUM_VALUE_TABLE 171 #include "clang/Driver/Options.inc" 172 #undef SIMPLE_ENUM_VALUE_TABLE 173 174 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 175 unsigned TableIndex, 176 const ArgList &Args, 177 DiagnosticsEngine &Diags) { 178 if (Args.hasArg(Opt)) 179 return true; 180 return std::nullopt; 181 } 182 183 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 184 unsigned, 185 const ArgList &Args, 186 DiagnosticsEngine &) { 187 if (Args.hasArg(Opt)) 188 return false; 189 return std::nullopt; 190 } 191 192 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 193 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 194 /// unnecessary template instantiations and just ignore it with a variadic 195 /// argument. 196 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 197 const Twine &Spelling, Option::OptionClass, 198 unsigned, /*T*/...) { 199 Consumer(Spelling); 200 } 201 202 template <typename T> static constexpr bool is_uint64_t_convertible() { 203 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 204 } 205 206 template <typename T, 207 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 208 static auto makeFlagToValueNormalizer(T Value) { 209 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 210 DiagnosticsEngine &) -> std::optional<T> { 211 if (Args.hasArg(Opt)) 212 return Value; 213 return std::nullopt; 214 }; 215 } 216 217 template <typename T, 218 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 219 static auto makeFlagToValueNormalizer(T Value) { 220 return makeFlagToValueNormalizer(uint64_t(Value)); 221 } 222 223 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 224 OptSpecifier OtherOpt) { 225 return [Value, OtherValue, 226 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 227 DiagnosticsEngine &) -> std::optional<bool> { 228 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 229 return A->getOption().matches(Opt) ? Value : OtherValue; 230 } 231 return std::nullopt; 232 }; 233 } 234 235 static auto makeBooleanOptionDenormalizer(bool Value) { 236 return [Value](ArgumentConsumer Consumer, const Twine &Spelling, 237 Option::OptionClass, unsigned, bool KeyPath) { 238 if (KeyPath == Value) 239 Consumer(Spelling); 240 }; 241 } 242 243 static void denormalizeStringImpl(ArgumentConsumer Consumer, 244 const Twine &Spelling, 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 Consumer(Spelling); 252 Consumer(Value); 253 break; 254 case Option::JoinedClass: 255 case Option::CommaJoinedClass: 256 Consumer(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 denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling, 266 Option::OptionClass OptClass, unsigned TableIndex, 267 T Value) { 268 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Twine(Value)); 269 } 270 271 static std::optional<SimpleEnumValue> 272 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 273 for (int I = 0, E = Table.Size; I != E; ++I) 274 if (Name == Table.Table[I].Name) 275 return Table.Table[I]; 276 277 return std::nullopt; 278 } 279 280 static std::optional<SimpleEnumValue> 281 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 282 for (int I = 0, E = Table.Size; I != E; ++I) 283 if (Value == Table.Table[I].Value) 284 return Table.Table[I]; 285 286 return std::nullopt; 287 } 288 289 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 290 unsigned TableIndex, 291 const ArgList &Args, 292 DiagnosticsEngine &Diags) { 293 assert(TableIndex < SimpleEnumValueTablesSize); 294 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 295 296 auto *Arg = Args.getLastArg(Opt); 297 if (!Arg) 298 return std::nullopt; 299 300 StringRef ArgValue = Arg->getValue(); 301 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 302 return MaybeEnumVal->Value; 303 304 Diags.Report(diag::err_drv_invalid_value) 305 << Arg->getAsString(Args) << ArgValue; 306 return std::nullopt; 307 } 308 309 static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer, 310 const Twine &Spelling, 311 Option::OptionClass OptClass, 312 unsigned TableIndex, unsigned Value) { 313 assert(TableIndex < SimpleEnumValueTablesSize); 314 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 315 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 316 denormalizeString(Consumer, Spelling, OptClass, TableIndex, 317 MaybeEnumVal->Name); 318 } else { 319 llvm_unreachable("The simple enum value was not correctly defined in " 320 "the tablegen option description"); 321 } 322 } 323 324 template <typename T> 325 static void denormalizeSimpleEnum(ArgumentConsumer Consumer, 326 const Twine &Spelling, 327 Option::OptionClass OptClass, 328 unsigned TableIndex, T Value) { 329 return denormalizeSimpleEnumImpl(Consumer, Spelling, OptClass, TableIndex, 330 static_cast<unsigned>(Value)); 331 } 332 333 static std::optional<std::string> normalizeString(OptSpecifier Opt, 334 int TableIndex, 335 const ArgList &Args, 336 DiagnosticsEngine &Diags) { 337 auto *Arg = Args.getLastArg(Opt); 338 if (!Arg) 339 return std::nullopt; 340 return std::string(Arg->getValue()); 341 } 342 343 template <typename IntTy> 344 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 345 const ArgList &Args, 346 DiagnosticsEngine &Diags) { 347 auto *Arg = Args.getLastArg(Opt); 348 if (!Arg) 349 return std::nullopt; 350 IntTy Res; 351 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 352 Diags.Report(diag::err_drv_invalid_int_value) 353 << Arg->getAsString(Args) << Arg->getValue(); 354 return std::nullopt; 355 } 356 return Res; 357 } 358 359 static std::optional<std::vector<std::string>> 360 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 361 DiagnosticsEngine &) { 362 return Args.getAllArgValues(Opt); 363 } 364 365 static void denormalizeStringVector(ArgumentConsumer Consumer, 366 const Twine &Spelling, 367 Option::OptionClass OptClass, 368 unsigned TableIndex, 369 const std::vector<std::string> &Values) { 370 switch (OptClass) { 371 case Option::CommaJoinedClass: { 372 std::string CommaJoinedValue; 373 if (!Values.empty()) { 374 CommaJoinedValue.append(Values.front()); 375 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 376 CommaJoinedValue.append(","); 377 CommaJoinedValue.append(Value); 378 } 379 } 380 denormalizeString(Consumer, Spelling, Option::OptionClass::JoinedClass, 381 TableIndex, CommaJoinedValue); 382 break; 383 } 384 case Option::JoinedClass: 385 case Option::SeparateClass: 386 case Option::JoinedOrSeparateClass: 387 for (const std::string &Value : Values) 388 denormalizeString(Consumer, Spelling, OptClass, TableIndex, Value); 389 break; 390 default: 391 llvm_unreachable("Cannot denormalize an option with option class " 392 "incompatible with string vector denormalization."); 393 } 394 } 395 396 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 397 int TableIndex, 398 const ArgList &Args, 399 DiagnosticsEngine &Diags) { 400 auto *Arg = Args.getLastArg(Opt); 401 if (!Arg) 402 return std::nullopt; 403 return llvm::Triple::normalize(Arg->getValue()); 404 } 405 406 template <typename T, typename U> 407 static T mergeForwardValue(T KeyPath, U Value) { 408 return static_cast<T>(Value); 409 } 410 411 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 412 return KeyPath | Value; 413 } 414 415 template <typename T> static T extractForwardValue(T KeyPath) { 416 return KeyPath; 417 } 418 419 template <typename T, typename U, U Value> 420 static T extractMaskValue(T KeyPath) { 421 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 422 } 423 424 #define PARSE_OPTION_WITH_MARSHALLING( \ 425 ARGS, DIAGS, PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, \ 426 PARAM, HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, \ 427 KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 428 DENORMALIZER, MERGER, EXTRACTOR, 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 CONSUMER, PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, \ 443 PARAM, HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, \ 444 KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 445 DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 446 if ((FLAGS)&options::CC1Option) { \ 447 [&](const auto &Extracted) { \ 448 if (ALWAYS_EMIT || \ 449 (Extracted != \ 450 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 451 : (DEFAULT_VALUE)))) \ 452 DENORMALIZER(CONSUMER, SPELLING, Option::KIND##Class, TABLE_INDEX, \ 453 Extracted); \ 454 }(EXTRACTOR(KEYPATH)); \ 455 } 456 457 static StringRef GetInputKindName(InputKind IK); 458 459 static bool FixupInvocation(CompilerInvocation &Invocation, 460 DiagnosticsEngine &Diags, const ArgList &Args, 461 InputKind IK) { 462 unsigned NumErrorsBefore = Diags.getNumErrors(); 463 464 LangOptions &LangOpts = *Invocation.getLangOpts(); 465 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 466 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 467 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 468 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 469 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 470 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 471 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 472 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 473 if (FrontendOpts.ShowStats) 474 CodeGenOpts.ClearASTBeforeBackend = false; 475 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 476 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 477 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 478 LangOpts.CurrentModule = LangOpts.ModuleName; 479 480 llvm::Triple T(TargetOpts.Triple); 481 llvm::Triple::ArchType Arch = T.getArch(); 482 483 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 484 485 if (LangOpts.getExceptionHandling() != 486 LangOptions::ExceptionHandlingKind::None && 487 T.isWindowsMSVCEnvironment()) 488 Diags.Report(diag::err_fe_invalid_exception_model) 489 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 490 491 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 492 Diags.Report(diag::warn_c_kext); 493 494 if (LangOpts.NewAlignOverride && 495 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 496 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 497 Diags.Report(diag::err_fe_invalid_alignment) 498 << A->getAsString(Args) << A->getValue(); 499 LangOpts.NewAlignOverride = 0; 500 } 501 502 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 503 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 504 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 505 << "-fsycl-is-host"; 506 507 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 508 Diags.Report(diag::err_drv_argument_not_allowed_with) 509 << "-fgnu89-inline" << GetInputKindName(IK); 510 511 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 512 Diags.Report(diag::err_drv_argument_not_allowed_with) 513 << "-hlsl-entry" << GetInputKindName(IK); 514 515 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 516 Diags.Report(diag::warn_ignored_hip_only_option) 517 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 518 519 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 520 Diags.Report(diag::warn_ignored_hip_only_option) 521 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 522 523 // When these options are used, the compiler is allowed to apply 524 // optimizations that may affect the final result. For example 525 // (x+y)+z is transformed to x+(y+z) but may not give the same 526 // final result; it's not value safe. 527 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 528 // or NaN. Final result may then differ. An error is issued when the eval 529 // method is set with one of these options. 530 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 531 if (LangOpts.ApproxFunc) 532 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 533 if (LangOpts.AllowFPReassoc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 535 if (LangOpts.AllowRecip) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 537 } 538 539 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 540 // This option should be deprecated for CL > 1.0 because 541 // this option was added for compatibility with OpenCL 1.0. 542 if (Args.getLastArg(OPT_cl_strict_aliasing) && 543 (LangOpts.getOpenCLCompatibleVersion() > 100)) 544 Diags.Report(diag::warn_option_invalid_ocl_version) 545 << LangOpts.getOpenCLVersionString() 546 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 547 548 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 549 auto DefaultCC = LangOpts.getDefaultCallingConv(); 550 551 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 552 DefaultCC == LangOptions::DCC_StdCall) && 553 Arch != llvm::Triple::x86; 554 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 555 DefaultCC == LangOptions::DCC_RegCall) && 556 !T.isX86(); 557 if (emitError) 558 Diags.Report(diag::err_drv_argument_not_allowed_with) 559 << A->getSpelling() << T.getTriple(); 560 } 561 562 return Diags.getNumErrors() == NumErrorsBefore; 563 } 564 565 //===----------------------------------------------------------------------===// 566 // Deserialization (from args) 567 //===----------------------------------------------------------------------===// 568 569 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 570 DiagnosticsEngine &Diags) { 571 unsigned DefaultOpt = llvm::CodeGenOpt::None; 572 if ((IK.getLanguage() == Language::OpenCL || 573 IK.getLanguage() == Language::OpenCLCXX) && 574 !Args.hasArg(OPT_cl_opt_disable)) 575 DefaultOpt = llvm::CodeGenOpt::Default; 576 577 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 578 if (A->getOption().matches(options::OPT_O0)) 579 return llvm::CodeGenOpt::None; 580 581 if (A->getOption().matches(options::OPT_Ofast)) 582 return llvm::CodeGenOpt::Aggressive; 583 584 assert(A->getOption().matches(options::OPT_O)); 585 586 StringRef S(A->getValue()); 587 if (S == "s" || S == "z") 588 return llvm::CodeGenOpt::Default; 589 590 if (S == "g") 591 return llvm::CodeGenOpt::Less; 592 593 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 594 } 595 596 return DefaultOpt; 597 } 598 599 static unsigned getOptimizationLevelSize(ArgList &Args) { 600 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 601 if (A->getOption().matches(options::OPT_O)) { 602 switch (A->getValue()[0]) { 603 default: 604 return 0; 605 case 's': 606 return 1; 607 case 'z': 608 return 2; 609 } 610 } 611 } 612 return 0; 613 } 614 615 static void GenerateArg(ArgumentConsumer Consumer, 616 llvm::opt::OptSpecifier OptSpecifier) { 617 Option Opt = getDriverOptTable().getOption(OptSpecifier); 618 denormalizeSimpleFlag(Consumer, Opt.getPrefix() + Opt.getName(), 619 Option::OptionClass::FlagClass, 0); 620 } 621 622 static void GenerateArg(ArgumentConsumer Consumer, 623 llvm::opt::OptSpecifier OptSpecifier, 624 const Twine &Value) { 625 Option Opt = getDriverOptTable().getOption(OptSpecifier); 626 denormalizeString(Consumer, Opt.getPrefix() + Opt.getName(), Opt.getKind(), 0, 627 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, or via the 643 /// ForceRoundTrip parameter. 644 /// 645 /// During round-trip, the command line arguments are parsed into a dummy 646 /// CompilerInvocation, which is used to generate the command line arguments 647 /// again. The real CompilerInvocation is then created by parsing the generated 648 /// arguments, not the original ones. This (in combination with tests covering 649 /// argument behavior) ensures the generated command line is complete (doesn't 650 /// drop/mangle any arguments). 651 /// 652 /// Finally, we check the command line that was used to create the real 653 /// CompilerInvocation instance. By default, we compare it to the command line 654 /// the real CompilerInvocation generates. This checks whether the generator is 655 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 656 /// compare it to the original command line to verify the original command-line 657 /// was canonical and can round-trip exactly. 658 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 659 CompilerInvocation &RealInvocation, 660 CompilerInvocation &DummyInvocation, 661 ArrayRef<const char *> CommandLineArgs, 662 DiagnosticsEngine &Diags, const char *Argv0, 663 bool CheckAgainstOriginalInvocation = false, 664 bool ForceRoundTrip = false) { 665 #ifndef NDEBUG 666 bool DoRoundTripDefault = true; 667 #else 668 bool DoRoundTripDefault = false; 669 #endif 670 671 bool DoRoundTrip = DoRoundTripDefault; 672 if (ForceRoundTrip) { 673 DoRoundTrip = true; 674 } else { 675 for (const auto *Arg : CommandLineArgs) { 676 if (Arg == StringRef("-round-trip-args")) 677 DoRoundTrip = true; 678 if (Arg == StringRef("-no-round-trip-args")) 679 DoRoundTrip = false; 680 } 681 } 682 683 // If round-trip was not requested, simply run the parser with the real 684 // invocation diagnostics. 685 if (!DoRoundTrip) 686 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 687 688 // Serializes quoted (and potentially escaped) arguments. 689 auto SerializeArgs = [](ArrayRef<const char *> Args) { 690 std::string Buffer; 691 llvm::raw_string_ostream OS(Buffer); 692 for (const char *Arg : Args) { 693 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 694 OS << ' '; 695 } 696 OS.flush(); 697 return Buffer; 698 }; 699 700 // Setup a dummy DiagnosticsEngine. 701 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 702 DummyDiags.setClient(new TextDiagnosticBuffer()); 703 704 // Run the first parse on the original arguments with the dummy invocation and 705 // diagnostics. 706 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 707 DummyDiags.getNumWarnings() != 0) { 708 // If the first parse did not succeed, it must be user mistake (invalid 709 // command line arguments). We won't be able to generate arguments that 710 // would reproduce the same result. Let's fail again with the real 711 // invocation and diagnostics, so all side-effects of parsing are visible. 712 unsigned NumWarningsBefore = Diags.getNumWarnings(); 713 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 714 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 715 return Success; 716 717 // Parse with original options and diagnostics succeeded even though it 718 // shouldn't have. Something is off. 719 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 720 Diags.Report(diag::note_cc1_round_trip_original) 721 << SerializeArgs(CommandLineArgs); 722 return false; 723 } 724 725 // Setup string allocator. 726 llvm::BumpPtrAllocator Alloc; 727 llvm::StringSaver StringPool(Alloc); 728 auto SA = [&StringPool](const Twine &Arg) { 729 return StringPool.save(Arg).data(); 730 }; 731 732 // Generate arguments from the dummy invocation. If Generate is the 733 // inverse of Parse, the newly generated arguments must have the same 734 // semantics as the original. 735 SmallVector<const char *> GeneratedArgs; 736 Generate(DummyInvocation, GeneratedArgs, SA); 737 738 // Run the second parse, now on the generated arguments, and with the real 739 // invocation and diagnostics. The result is what we will end up using for the 740 // rest of compilation, so if Generate is not inverse of Parse, something down 741 // the line will break. 742 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 743 744 // The first parse on original arguments succeeded, but second parse of 745 // generated arguments failed. Something must be wrong with the generator. 746 if (!Success2) { 747 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 748 Diags.Report(diag::note_cc1_round_trip_generated) 749 << 1 << SerializeArgs(GeneratedArgs); 750 return false; 751 } 752 753 SmallVector<const char *> ComparisonArgs; 754 if (CheckAgainstOriginalInvocation) 755 // Compare against original arguments. 756 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 757 else 758 // Generate arguments again, this time from the options we will end up using 759 // for the rest of the compilation. 760 Generate(RealInvocation, ComparisonArgs, SA); 761 762 // Compares two lists of arguments. 763 auto Equal = [](const ArrayRef<const char *> A, 764 const ArrayRef<const char *> B) { 765 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 766 [](const char *AElem, const char *BElem) { 767 return StringRef(AElem) == StringRef(BElem); 768 }); 769 }; 770 771 // If we generated different arguments from what we assume are two 772 // semantically equivalent CompilerInvocations, the Generate function may 773 // be non-deterministic. 774 if (!Equal(GeneratedArgs, ComparisonArgs)) { 775 Diags.Report(diag::err_cc1_round_trip_mismatch); 776 Diags.Report(diag::note_cc1_round_trip_generated) 777 << 1 << SerializeArgs(GeneratedArgs); 778 Diags.Report(diag::note_cc1_round_trip_generated) 779 << 2 << SerializeArgs(ComparisonArgs); 780 return false; 781 } 782 783 Diags.Report(diag::remark_cc1_round_trip_generated) 784 << 1 << SerializeArgs(GeneratedArgs); 785 Diags.Report(diag::remark_cc1_round_trip_generated) 786 << 2 << SerializeArgs(ComparisonArgs); 787 788 return Success2; 789 } 790 791 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 792 DiagnosticsEngine &Diags, 793 const char *Argv0) { 794 CompilerInvocation DummyInvocation1, DummyInvocation2; 795 return RoundTrip( 796 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 797 DiagnosticsEngine &Diags, const char *Argv0) { 798 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 799 }, 800 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 801 StringAllocator SA) { 802 Args.push_back("-cc1"); 803 Invocation.generateCC1CommandLine(Args, SA); 804 }, 805 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 806 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 807 } 808 809 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 810 OptSpecifier GroupWithValue, 811 std::vector<std::string> &Diagnostics) { 812 for (auto *A : Args.filtered(Group)) { 813 if (A->getOption().getKind() == Option::FlagClass) { 814 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 815 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 816 Diagnostics.push_back( 817 std::string(A->getOption().getName().drop_front(1))); 818 } else if (A->getOption().matches(GroupWithValue)) { 819 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 820 // group. Add only the group name to the diagnostics. 821 Diagnostics.push_back( 822 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 823 } else { 824 // Otherwise, add its value (for OPT_W_Joined and similar). 825 Diagnostics.push_back(A->getValue()); 826 } 827 } 828 } 829 830 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 831 // it won't verify the input. 832 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 833 DiagnosticsEngine *Diags); 834 835 static void getAllNoBuiltinFuncValues(ArgList &Args, 836 std::vector<std::string> &Funcs) { 837 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 838 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 839 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 840 } 841 842 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 843 ArgumentConsumer Consumer) { 844 const AnalyzerOptions *AnalyzerOpts = &Opts; 845 846 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 847 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 848 #include "clang/Driver/Options.inc" 849 #undef ANALYZER_OPTION_WITH_MARSHALLING 850 851 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 852 switch (Opts.AnalysisConstraintsOpt) { 853 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 854 case NAME##Model: \ 855 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \ 856 break; 857 #include "clang/StaticAnalyzer/Core/Analyses.def" 858 default: 859 llvm_unreachable("Tried to generate unknown analysis constraint."); 860 } 861 } 862 863 if (Opts.AnalysisDiagOpt != PD_HTML) { 864 switch (Opts.AnalysisDiagOpt) { 865 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 866 case PD_##NAME: \ 867 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \ 868 break; 869 #include "clang/StaticAnalyzer/Core/Analyses.def" 870 default: 871 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 872 } 873 } 874 875 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 876 switch (Opts.AnalysisPurgeOpt) { 877 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 878 case NAME: \ 879 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \ 880 break; 881 #include "clang/StaticAnalyzer/Core/Analyses.def" 882 default: 883 llvm_unreachable("Tried to generate unknown analysis purge mode."); 884 } 885 } 886 887 if (Opts.InliningMode != NoRedundancy) { 888 switch (Opts.InliningMode) { 889 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 890 case NAME: \ 891 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \ 892 break; 893 #include "clang/StaticAnalyzer/Core/Analyses.def" 894 default: 895 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 896 } 897 } 898 899 for (const auto &CP : Opts.CheckersAndPackages) { 900 OptSpecifier Opt = 901 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 902 GenerateArg(Consumer, Opt, CP.first); 903 } 904 905 AnalyzerOptions ConfigOpts; 906 parseAnalyzerConfigs(ConfigOpts, nullptr); 907 908 // Sort options by key to avoid relying on StringMap iteration order. 909 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 910 for (const auto &C : Opts.Config) 911 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 912 llvm::sort(SortedConfigOpts, llvm::less_first()); 913 914 for (const auto &[Key, Value] : SortedConfigOpts) { 915 // Don't generate anything that came from parseAnalyzerConfigs. It would be 916 // redundant and may not be valid on the command line. 917 auto Entry = ConfigOpts.Config.find(Key); 918 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 919 continue; 920 921 GenerateArg(Consumer, OPT_analyzer_config, Key + "=" + Value); 922 } 923 924 // Nothing to generate for FullCompilerInvocation. 925 } 926 927 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 928 DiagnosticsEngine &Diags) { 929 unsigned NumErrorsBefore = Diags.getNumErrors(); 930 931 AnalyzerOptions *AnalyzerOpts = &Opts; 932 933 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 934 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 935 #include "clang/Driver/Options.inc" 936 #undef ANALYZER_OPTION_WITH_MARSHALLING 937 938 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 939 StringRef Name = A->getValue(); 940 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 941 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 942 .Case(CMDFLAG, NAME##Model) 943 #include "clang/StaticAnalyzer/Core/Analyses.def" 944 .Default(NumConstraints); 945 if (Value == NumConstraints) { 946 Diags.Report(diag::err_drv_invalid_value) 947 << A->getAsString(Args) << Name; 948 } else { 949 #ifndef LLVM_WITH_Z3 950 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 951 Diags.Report(diag::err_analyzer_not_built_with_z3); 952 } 953 #endif // LLVM_WITH_Z3 954 Opts.AnalysisConstraintsOpt = Value; 955 } 956 } 957 958 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 959 StringRef Name = A->getValue(); 960 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 961 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 962 .Case(CMDFLAG, PD_##NAME) 963 #include "clang/StaticAnalyzer/Core/Analyses.def" 964 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 965 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 966 Diags.Report(diag::err_drv_invalid_value) 967 << A->getAsString(Args) << Name; 968 } else { 969 Opts.AnalysisDiagOpt = Value; 970 } 971 } 972 973 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 974 StringRef Name = A->getValue(); 975 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 976 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 977 .Case(CMDFLAG, NAME) 978 #include "clang/StaticAnalyzer/Core/Analyses.def" 979 .Default(NumPurgeModes); 980 if (Value == NumPurgeModes) { 981 Diags.Report(diag::err_drv_invalid_value) 982 << A->getAsString(Args) << Name; 983 } else { 984 Opts.AnalysisPurgeOpt = Value; 985 } 986 } 987 988 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 989 StringRef Name = A->getValue(); 990 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 991 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 992 .Case(CMDFLAG, NAME) 993 #include "clang/StaticAnalyzer/Core/Analyses.def" 994 .Default(NumInliningModes); 995 if (Value == NumInliningModes) { 996 Diags.Report(diag::err_drv_invalid_value) 997 << A->getAsString(Args) << Name; 998 } else { 999 Opts.InliningMode = Value; 1000 } 1001 } 1002 1003 Opts.CheckersAndPackages.clear(); 1004 for (const Arg *A : 1005 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1006 A->claim(); 1007 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1008 // We can have a list of comma separated checker names, e.g: 1009 // '-analyzer-checker=cocoa,unix' 1010 StringRef CheckerAndPackageList = A->getValue(); 1011 SmallVector<StringRef, 16> CheckersAndPackages; 1012 CheckerAndPackageList.split(CheckersAndPackages, ","); 1013 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1014 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1015 IsEnabled); 1016 } 1017 1018 // Go through the analyzer configuration options. 1019 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1020 1021 // We can have a list of comma separated config names, e.g: 1022 // '-analyzer-config key1=val1,key2=val2' 1023 StringRef configList = A->getValue(); 1024 SmallVector<StringRef, 4> configVals; 1025 configList.split(configVals, ","); 1026 for (const auto &configVal : configVals) { 1027 StringRef key, val; 1028 std::tie(key, val) = configVal.split("="); 1029 if (val.empty()) { 1030 Diags.Report(SourceLocation(), 1031 diag::err_analyzer_config_no_value) << configVal; 1032 break; 1033 } 1034 if (val.contains('=')) { 1035 Diags.Report(SourceLocation(), 1036 diag::err_analyzer_config_multiple_values) 1037 << configVal; 1038 break; 1039 } 1040 1041 // TODO: Check checker options too, possibly in CheckerRegistry. 1042 // Leave unknown non-checker configs unclaimed. 1043 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1044 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1045 Diags.Report(diag::err_analyzer_config_unknown) << key; 1046 continue; 1047 } 1048 1049 A->claim(); 1050 Opts.Config[key] = std::string(val); 1051 } 1052 } 1053 1054 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1055 parseAnalyzerConfigs(Opts, &Diags); 1056 else 1057 parseAnalyzerConfigs(Opts, nullptr); 1058 1059 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1060 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1061 if (i != 0) 1062 os << " "; 1063 os << Args.getArgString(i); 1064 } 1065 os.flush(); 1066 1067 return Diags.getNumErrors() == NumErrorsBefore; 1068 } 1069 1070 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1071 StringRef OptionName, StringRef DefaultVal) { 1072 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1073 } 1074 1075 static void initOption(AnalyzerOptions::ConfigTable &Config, 1076 DiagnosticsEngine *Diags, 1077 StringRef &OptionField, StringRef Name, 1078 StringRef DefaultVal) { 1079 // String options may be known to invalid (e.g. if the expected string is a 1080 // file name, but the file does not exist), those will have to be checked in 1081 // parseConfigs. 1082 OptionField = getStringOption(Config, Name, DefaultVal); 1083 } 1084 1085 static void initOption(AnalyzerOptions::ConfigTable &Config, 1086 DiagnosticsEngine *Diags, 1087 bool &OptionField, StringRef Name, bool DefaultVal) { 1088 auto PossiblyInvalidVal = 1089 llvm::StringSwitch<std::optional<bool>>( 1090 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1091 .Case("true", true) 1092 .Case("false", false) 1093 .Default(std::nullopt); 1094 1095 if (!PossiblyInvalidVal) { 1096 if (Diags) 1097 Diags->Report(diag::err_analyzer_config_invalid_input) 1098 << Name << "a boolean"; 1099 else 1100 OptionField = DefaultVal; 1101 } else 1102 OptionField = *PossiblyInvalidVal; 1103 } 1104 1105 static void initOption(AnalyzerOptions::ConfigTable &Config, 1106 DiagnosticsEngine *Diags, 1107 unsigned &OptionField, StringRef Name, 1108 unsigned DefaultVal) { 1109 1110 OptionField = DefaultVal; 1111 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1112 .getAsInteger(0, OptionField); 1113 if (Diags && HasFailed) 1114 Diags->Report(diag::err_analyzer_config_invalid_input) 1115 << Name << "an unsigned"; 1116 } 1117 1118 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1119 DiagnosticsEngine *Diags) { 1120 // TODO: There's no need to store the entire configtable, it'd be plenty 1121 // enough to store checker options. 1122 1123 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1124 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1125 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1126 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1127 1128 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1129 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1130 1131 #define ANALYZER_OPTION(...) 1132 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1133 SHALLOW_VAL, DEEP_VAL) \ 1134 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1135 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1136 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1137 1138 // At this point, AnalyzerOptions is configured. Let's validate some options. 1139 1140 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1141 // The current approach only validates the registered checkers which does not 1142 // contain the runtime enabled checkers and optimally we would validate both. 1143 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1144 std::vector<StringRef> Checkers = 1145 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1146 std::vector<StringRef> Packages = 1147 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1148 1149 SmallVector<StringRef, 16> CheckersAndPackages; 1150 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1151 1152 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1153 if (Diags) { 1154 bool IsChecker = CheckerOrPackage.contains('.'); 1155 bool IsValidName = IsChecker 1156 ? llvm::is_contained(Checkers, CheckerOrPackage) 1157 : llvm::is_contained(Packages, CheckerOrPackage); 1158 1159 if (!IsValidName) 1160 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1161 << CheckerOrPackage; 1162 } 1163 1164 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1165 } 1166 } 1167 1168 if (!Diags) 1169 return; 1170 1171 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1172 Diags->Report(diag::err_analyzer_config_invalid_input) 1173 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1174 1175 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1176 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1177 << "a filename"; 1178 1179 if (!AnOpts.ModelPath.empty() && 1180 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1181 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1182 << "a filename"; 1183 } 1184 1185 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1186 static void 1187 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1188 StringRef Name, 1189 const CodeGenOptions::OptRemark &Remark) { 1190 if (Remark.hasValidPattern()) { 1191 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1192 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1193 GenerateArg(Consumer, OPT_R_Joined, Name); 1194 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1195 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1196 } 1197 } 1198 1199 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1200 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1201 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1202 static CodeGenOptions::OptRemark 1203 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1204 OptSpecifier OptEQ, StringRef Name) { 1205 CodeGenOptions::OptRemark Result; 1206 1207 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1208 StringRef Pattern) { 1209 Result.Pattern = Pattern.str(); 1210 1211 std::string RegexError; 1212 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1213 if (!Result.Regex->isValid(RegexError)) { 1214 Diags.Report(diag::err_drv_optimization_remark_pattern) 1215 << RegexError << A->getAsString(Args); 1216 return false; 1217 } 1218 1219 return true; 1220 }; 1221 1222 for (Arg *A : Args) { 1223 if (A->getOption().matches(OPT_R_Joined)) { 1224 StringRef Value = A->getValue(); 1225 1226 if (Value == Name) 1227 Result.Kind = CodeGenOptions::RK_Enabled; 1228 else if (Value == "everything") 1229 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1230 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1231 Result.Kind = CodeGenOptions::RK_Disabled; 1232 else if (Value == "no-everything") 1233 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1234 else 1235 continue; 1236 1237 if (Result.Kind == CodeGenOptions::RK_Disabled || 1238 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1239 Result.Pattern = ""; 1240 Result.Regex = nullptr; 1241 } else { 1242 InitializeResultPattern(A, ".*"); 1243 } 1244 } else if (A->getOption().matches(OptEQ)) { 1245 Result.Kind = CodeGenOptions::RK_WithPattern; 1246 if (!InitializeResultPattern(A, A->getValue())) 1247 return CodeGenOptions::OptRemark(); 1248 } 1249 } 1250 1251 return Result; 1252 } 1253 1254 static bool parseDiagnosticLevelMask(StringRef FlagName, 1255 const std::vector<std::string> &Levels, 1256 DiagnosticsEngine &Diags, 1257 DiagnosticLevelMask &M) { 1258 bool Success = true; 1259 for (const auto &Level : Levels) { 1260 DiagnosticLevelMask const PM = 1261 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1262 .Case("note", DiagnosticLevelMask::Note) 1263 .Case("remark", DiagnosticLevelMask::Remark) 1264 .Case("warning", DiagnosticLevelMask::Warning) 1265 .Case("error", DiagnosticLevelMask::Error) 1266 .Default(DiagnosticLevelMask::None); 1267 if (PM == DiagnosticLevelMask::None) { 1268 Success = false; 1269 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1270 } 1271 M = M | PM; 1272 } 1273 return Success; 1274 } 1275 1276 static void parseSanitizerKinds(StringRef FlagName, 1277 const std::vector<std::string> &Sanitizers, 1278 DiagnosticsEngine &Diags, SanitizerSet &S) { 1279 for (const auto &Sanitizer : Sanitizers) { 1280 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1281 if (K == SanitizerMask()) 1282 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1283 else 1284 S.set(K, true); 1285 } 1286 } 1287 1288 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1289 SmallVector<StringRef, 4> Values; 1290 serializeSanitizerSet(S, Values); 1291 return Values; 1292 } 1293 1294 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1295 ArgList &Args, DiagnosticsEngine &D, 1296 XRayInstrSet &S) { 1297 llvm::SmallVector<StringRef, 2> BundleParts; 1298 llvm::SplitString(Bundle, BundleParts, ","); 1299 for (const auto &B : BundleParts) { 1300 auto Mask = parseXRayInstrValue(B); 1301 if (Mask == XRayInstrKind::None) 1302 if (B != "none") 1303 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1304 else 1305 S.Mask = Mask; 1306 else if (Mask == XRayInstrKind::All) 1307 S.Mask = Mask; 1308 else 1309 S.set(Mask, true); 1310 } 1311 } 1312 1313 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1314 llvm::SmallVector<StringRef, 2> BundleParts; 1315 serializeXRayInstrValue(S, BundleParts); 1316 std::string Buffer; 1317 llvm::raw_string_ostream OS(Buffer); 1318 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1319 return Buffer; 1320 } 1321 1322 // Set the profile kind using fprofile-instrument-use-path. 1323 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1324 const Twine &ProfileName, 1325 llvm::vfs::FileSystem &FS, 1326 DiagnosticsEngine &Diags) { 1327 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1328 if (auto E = ReaderOrErr.takeError()) { 1329 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1330 "Error in reading profile %0: %1"); 1331 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1332 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1333 }); 1334 return; 1335 } 1336 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1337 std::move(ReaderOrErr.get()); 1338 // Currently memprof profiles are only added at the IR level. Mark the profile 1339 // type as IR in that case as well and the subsequent matching needs to detect 1340 // which is available (might be one or both). 1341 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1342 if (PGOReader->hasCSIRLevelProfile()) 1343 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1344 else 1345 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1346 } else 1347 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1348 } 1349 1350 void CompilerInvocation::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1351 ArgumentConsumer Consumer, 1352 const llvm::Triple &T, 1353 const std::string &OutputFile, 1354 const LangOptions *LangOpts) { 1355 const CodeGenOptions &CodeGenOpts = Opts; 1356 1357 if (Opts.OptimizationLevel == 0) 1358 GenerateArg(Consumer, OPT_O0); 1359 else 1360 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1361 1362 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1363 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1364 #include "clang/Driver/Options.inc" 1365 #undef CODEGEN_OPTION_WITH_MARSHALLING 1366 1367 if (Opts.OptimizationLevel > 0) { 1368 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1369 GenerateArg(Consumer, OPT_finline_functions); 1370 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1371 GenerateArg(Consumer, OPT_finline_hint_functions); 1372 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1373 GenerateArg(Consumer, OPT_fno_inline); 1374 } 1375 1376 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1377 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1378 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1379 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1380 1381 std::optional<StringRef> DebugInfoVal; 1382 switch (Opts.DebugInfo) { 1383 case llvm::codegenoptions::DebugLineTablesOnly: 1384 DebugInfoVal = "line-tables-only"; 1385 break; 1386 case llvm::codegenoptions::DebugDirectivesOnly: 1387 DebugInfoVal = "line-directives-only"; 1388 break; 1389 case llvm::codegenoptions::DebugInfoConstructor: 1390 DebugInfoVal = "constructor"; 1391 break; 1392 case llvm::codegenoptions::LimitedDebugInfo: 1393 DebugInfoVal = "limited"; 1394 break; 1395 case llvm::codegenoptions::FullDebugInfo: 1396 DebugInfoVal = "standalone"; 1397 break; 1398 case llvm::codegenoptions::UnusedTypeInfo: 1399 DebugInfoVal = "unused-types"; 1400 break; 1401 case llvm::codegenoptions::NoDebugInfo: // default value 1402 DebugInfoVal = std::nullopt; 1403 break; 1404 case llvm::codegenoptions::LocTrackingOnly: // implied value 1405 DebugInfoVal = std::nullopt; 1406 break; 1407 } 1408 if (DebugInfoVal) 1409 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1410 1411 for (const auto &Prefix : Opts.DebugPrefixMap) 1412 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1413 Prefix.first + "=" + Prefix.second); 1414 1415 for (const auto &Prefix : Opts.CoveragePrefixMap) 1416 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1417 Prefix.first + "=" + Prefix.second); 1418 1419 if (Opts.NewStructPathTBAA) 1420 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1421 1422 if (Opts.OptimizeSize == 1) 1423 GenerateArg(Consumer, OPT_O, "s"); 1424 else if (Opts.OptimizeSize == 2) 1425 GenerateArg(Consumer, OPT_O, "z"); 1426 1427 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1428 // -ffreestanding. We'll consider that when generating them. 1429 1430 // NoBuiltinFuncs are generated by LangOptions. 1431 1432 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1433 GenerateArg(Consumer, OPT_funroll_loops); 1434 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1435 GenerateArg(Consumer, OPT_fno_unroll_loops); 1436 1437 if (!Opts.BinutilsVersion.empty()) 1438 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1439 1440 if (Opts.DebugNameTable == 1441 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1442 GenerateArg(Consumer, OPT_ggnu_pubnames); 1443 else if (Opts.DebugNameTable == 1444 static_cast<unsigned>( 1445 llvm::DICompileUnit::DebugNameTableKind::Default)) 1446 GenerateArg(Consumer, OPT_gpubnames); 1447 1448 auto TNK = Opts.getDebugSimpleTemplateNames(); 1449 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1450 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1451 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1452 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1453 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1454 } 1455 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1456 // it or PGOUseInstrumentor. 1457 1458 if (Opts.TimePasses) { 1459 if (Opts.TimePassesPerRun) 1460 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1461 else 1462 GenerateArg(Consumer, OPT_ftime_report); 1463 } 1464 1465 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1466 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1467 1468 if (Opts.PrepareForThinLTO) 1469 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1470 1471 if (!Opts.ThinLTOIndexFile.empty()) 1472 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1473 1474 if (Opts.SaveTempsFilePrefix == OutputFile) 1475 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1476 1477 StringRef MemProfileBasename("memprof.profraw"); 1478 if (!Opts.MemoryProfileOutput.empty()) { 1479 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1480 GenerateArg(Consumer, OPT_fmemory_profile); 1481 } else { 1482 size_t ArgLength = 1483 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1484 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1485 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1486 } 1487 } 1488 1489 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1490 GenerateArg(Consumer, OPT_coverage_version_EQ, 1491 StringRef(Opts.CoverageVersion, 4)); 1492 1493 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1494 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1495 // won't be generated.) 1496 1497 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1498 std::string InstrBundle = 1499 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1500 if (!InstrBundle.empty()) 1501 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1502 } 1503 1504 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1505 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1506 else if (Opts.CFProtectionReturn) 1507 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1508 else if (Opts.CFProtectionBranch) 1509 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1510 1511 if (Opts.FunctionReturnThunks) 1512 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1513 1514 for (const auto &F : Opts.LinkBitcodeFiles) { 1515 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1516 F.PropagateAttrs && F.Internalize; 1517 GenerateArg(Consumer, 1518 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1519 F.Filename); 1520 } 1521 1522 if (Opts.EmulatedTLS) 1523 GenerateArg(Consumer, OPT_femulated_tls); 1524 1525 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1526 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1527 1528 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1529 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1530 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1531 Opts.FP32DenormalMode.str()); 1532 1533 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1534 OptSpecifier Opt = 1535 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1536 GenerateArg(Consumer, Opt); 1537 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1538 OptSpecifier Opt = 1539 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1540 GenerateArg(Consumer, Opt); 1541 } 1542 1543 if (Opts.EnableAIXExtendedAltivecABI) 1544 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1545 1546 if (Opts.XCOFFReadOnlyPointers) 1547 GenerateArg(Consumer, OPT_mxcoff_roptr); 1548 1549 if (!Opts.OptRecordPasses.empty()) 1550 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1551 1552 if (!Opts.OptRecordFormat.empty()) 1553 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1554 1555 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1556 Opts.OptimizationRemark); 1557 1558 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1559 Opts.OptimizationRemarkMissed); 1560 1561 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1562 Opts.OptimizationRemarkAnalysis); 1563 1564 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1565 Opts.DiagnosticsHotnessThreshold 1566 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1567 : "auto"); 1568 1569 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1570 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1571 1572 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1573 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1574 1575 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1576 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1577 1578 if (!Opts.EmitVersionIdentMetadata) 1579 GenerateArg(Consumer, OPT_Qn); 1580 1581 switch (Opts.FiniteLoops) { 1582 case CodeGenOptions::FiniteLoopsKind::Language: 1583 break; 1584 case CodeGenOptions::FiniteLoopsKind::Always: 1585 GenerateArg(Consumer, OPT_ffinite_loops); 1586 break; 1587 case CodeGenOptions::FiniteLoopsKind::Never: 1588 GenerateArg(Consumer, OPT_fno_finite_loops); 1589 break; 1590 } 1591 } 1592 1593 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1594 InputKind IK, 1595 DiagnosticsEngine &Diags, 1596 const llvm::Triple &T, 1597 const std::string &OutputFile, 1598 const LangOptions &LangOptsRef) { 1599 unsigned NumErrorsBefore = Diags.getNumErrors(); 1600 1601 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1602 // TODO: This could be done in Driver 1603 unsigned MaxOptLevel = 3; 1604 if (OptimizationLevel > MaxOptLevel) { 1605 // If the optimization level is not supported, fall back on the default 1606 // optimization 1607 Diags.Report(diag::warn_drv_optimization_value) 1608 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1609 OptimizationLevel = MaxOptLevel; 1610 } 1611 Opts.OptimizationLevel = OptimizationLevel; 1612 1613 // The key paths of codegen options defined in Options.td start with 1614 // "CodeGenOpts.". Let's provide the expected variable name and type. 1615 CodeGenOptions &CodeGenOpts = Opts; 1616 // Some codegen options depend on language options. Let's provide the expected 1617 // variable name and type. 1618 const LangOptions *LangOpts = &LangOptsRef; 1619 1620 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1621 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1622 #include "clang/Driver/Options.inc" 1623 #undef CODEGEN_OPTION_WITH_MARSHALLING 1624 1625 // At O0 we want to fully disable inlining outside of cases marked with 1626 // 'alwaysinline' that are required for correctness. 1627 if (Opts.OptimizationLevel == 0) { 1628 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1629 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1630 options::OPT_finline_hint_functions, 1631 options::OPT_fno_inline_functions, 1632 options::OPT_fno_inline)) { 1633 // Explicit inlining flags can disable some or all inlining even at 1634 // optimization levels above zero. 1635 if (A->getOption().matches(options::OPT_finline_functions)) 1636 Opts.setInlining(CodeGenOptions::NormalInlining); 1637 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1638 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1639 else 1640 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1641 } else { 1642 Opts.setInlining(CodeGenOptions::NormalInlining); 1643 } 1644 1645 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1646 // -fdirect-access-external-data. 1647 Opts.DirectAccessExternalData = 1648 Args.hasArg(OPT_fdirect_access_external_data) || 1649 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1650 LangOpts->PICLevel == 0); 1651 1652 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1653 unsigned Val = 1654 llvm::StringSwitch<unsigned>(A->getValue()) 1655 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1656 .Case("line-directives-only", 1657 llvm::codegenoptions::DebugDirectivesOnly) 1658 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1659 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1660 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1661 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1662 .Default(~0U); 1663 if (Val == ~0U) 1664 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1665 << A->getValue(); 1666 else 1667 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1668 } 1669 1670 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1671 // constructor homing, and vice versa for -fno-use-ctor-homing. 1672 if (const Arg *A = 1673 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1674 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1675 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1676 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1677 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1678 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1679 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1680 } 1681 1682 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1683 auto Split = StringRef(Arg).split('='); 1684 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1685 } 1686 1687 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1688 auto Split = StringRef(Arg).split('='); 1689 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1690 } 1691 1692 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1693 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1694 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1695 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1696 1697 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1698 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1699 Opts.EmitCallSiteInfo = true; 1700 1701 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1702 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1703 << Opts.DIBugsReportFilePath; 1704 Opts.DIBugsReportFilePath = ""; 1705 } 1706 1707 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1708 Args.hasArg(OPT_new_struct_path_tbaa); 1709 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1710 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1711 if (Opts.SimplifyLibCalls) 1712 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1713 Opts.UnrollLoops = 1714 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1715 (Opts.OptimizationLevel > 1)); 1716 Opts.BinutilsVersion = 1717 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1718 1719 Opts.DebugNameTable = static_cast<unsigned>( 1720 Args.hasArg(OPT_ggnu_pubnames) 1721 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1722 : Args.hasArg(OPT_gpubnames) 1723 ? llvm::DICompileUnit::DebugNameTableKind::Default 1724 : llvm::DICompileUnit::DebugNameTableKind::None); 1725 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1726 StringRef Value = A->getValue(); 1727 if (Value != "simple" && Value != "mangled") 1728 Diags.Report(diag::err_drv_unsupported_option_argument) 1729 << A->getSpelling() << A->getValue(); 1730 Opts.setDebugSimpleTemplateNames( 1731 StringRef(A->getValue()) == "simple" 1732 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1733 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1734 } 1735 1736 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1737 Opts.TimePasses = true; 1738 1739 // -ftime-report= is only for new pass manager. 1740 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1741 StringRef Val = A->getValue(); 1742 if (Val == "per-pass") 1743 Opts.TimePassesPerRun = false; 1744 else if (Val == "per-pass-run") 1745 Opts.TimePassesPerRun = true; 1746 else 1747 Diags.Report(diag::err_drv_invalid_value) 1748 << A->getAsString(Args) << A->getValue(); 1749 } 1750 } 1751 1752 Opts.PrepareForLTO = false; 1753 Opts.PrepareForThinLTO = false; 1754 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1755 Opts.PrepareForLTO = true; 1756 StringRef S = A->getValue(); 1757 if (S == "thin") 1758 Opts.PrepareForThinLTO = true; 1759 else if (S != "full") 1760 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1761 if (Args.hasArg(OPT_funified_lto)) 1762 Opts.PrepareForThinLTO = true; 1763 } 1764 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1765 if (IK.getLanguage() != Language::LLVM_IR) 1766 Diags.Report(diag::err_drv_argument_only_allowed_with) 1767 << A->getAsString(Args) << "-x ir"; 1768 Opts.ThinLTOIndexFile = 1769 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1770 } 1771 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1772 Opts.SaveTempsFilePrefix = 1773 llvm::StringSwitch<std::string>(A->getValue()) 1774 .Case("obj", OutputFile) 1775 .Default(llvm::sys::path::filename(OutputFile).str()); 1776 1777 // The memory profile runtime appends the pid to make this name more unique. 1778 const char *MemProfileBasename = "memprof.profraw"; 1779 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1780 SmallString<128> Path( 1781 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1782 llvm::sys::path::append(Path, MemProfileBasename); 1783 Opts.MemoryProfileOutput = std::string(Path); 1784 } else if (Args.hasArg(OPT_fmemory_profile)) 1785 Opts.MemoryProfileOutput = MemProfileBasename; 1786 1787 memcpy(Opts.CoverageVersion, "408*", 4); 1788 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 1789 if (Args.hasArg(OPT_coverage_version_EQ)) { 1790 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1791 if (CoverageVersion.size() != 4) { 1792 Diags.Report(diag::err_drv_invalid_value) 1793 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1794 << CoverageVersion; 1795 } else { 1796 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1797 } 1798 } 1799 } 1800 // FIXME: For backend options that are not yet recorded as function 1801 // attributes in the IR, keep track of them so we can embed them in a 1802 // separate data section and use them when building the bitcode. 1803 for (const auto &A : Args) { 1804 // Do not encode output and input. 1805 if (A->getOption().getID() == options::OPT_o || 1806 A->getOption().getID() == options::OPT_INPUT || 1807 A->getOption().getID() == options::OPT_x || 1808 A->getOption().getID() == options::OPT_fembed_bitcode || 1809 A->getOption().matches(options::OPT_W_Group)) 1810 continue; 1811 ArgStringList ASL; 1812 A->render(Args, ASL); 1813 for (const auto &arg : ASL) { 1814 StringRef ArgStr(arg); 1815 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1816 // using \00 to separate each commandline options. 1817 Opts.CmdArgs.push_back('\0'); 1818 } 1819 } 1820 1821 auto XRayInstrBundles = 1822 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1823 if (XRayInstrBundles.empty()) 1824 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1825 else 1826 for (const auto &A : XRayInstrBundles) 1827 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1828 Diags, Opts.XRayInstrumentationBundle); 1829 1830 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1831 StringRef Name = A->getValue(); 1832 if (Name == "full") { 1833 Opts.CFProtectionReturn = 1; 1834 Opts.CFProtectionBranch = 1; 1835 } else if (Name == "return") 1836 Opts.CFProtectionReturn = 1; 1837 else if (Name == "branch") 1838 Opts.CFProtectionBranch = 1; 1839 else if (Name != "none") 1840 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1841 } 1842 1843 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1844 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1845 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1846 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1847 .Default(llvm::FunctionReturnThunksKind::Invalid); 1848 // SystemZ might want to add support for "expolines." 1849 if (!T.isX86()) 1850 Diags.Report(diag::err_drv_argument_not_allowed_with) 1851 << A->getSpelling() << T.getTriple(); 1852 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1853 Diags.Report(diag::err_drv_invalid_value) 1854 << A->getAsString(Args) << A->getValue(); 1855 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1856 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1857 Diags.Report(diag::err_drv_argument_not_allowed_with) 1858 << A->getAsString(Args) 1859 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1860 else 1861 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1862 } 1863 1864 for (auto *A : 1865 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1866 CodeGenOptions::BitcodeFileToLink F; 1867 F.Filename = A->getValue(); 1868 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1869 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1870 // When linking CUDA bitcode, propagate function attributes so that 1871 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1872 F.PropagateAttrs = true; 1873 F.Internalize = true; 1874 } 1875 Opts.LinkBitcodeFiles.push_back(F); 1876 } 1877 1878 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1879 if (T.isOSAIX()) { 1880 StringRef Name = A->getValue(); 1881 if (Name != "global-dynamic" && Name != "local-exec") 1882 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1883 } 1884 } 1885 1886 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1887 StringRef Val = A->getValue(); 1888 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1889 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1890 if (!Opts.FPDenormalMode.isValid()) 1891 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1892 } 1893 1894 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1895 StringRef Val = A->getValue(); 1896 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1897 if (!Opts.FP32DenormalMode.isValid()) 1898 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1899 } 1900 1901 // X86_32 has -fppc-struct-return and -freg-struct-return. 1902 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1903 if (Arg *A = 1904 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1905 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1906 // TODO: We might want to consider enabling these options on AIX in the 1907 // future. 1908 if (T.isOSAIX()) 1909 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1910 << A->getSpelling() << T.str(); 1911 1912 const Option &O = A->getOption(); 1913 if (O.matches(OPT_fpcc_struct_return) || 1914 O.matches(OPT_maix_struct_return)) { 1915 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1916 } else { 1917 assert(O.matches(OPT_freg_struct_return) || 1918 O.matches(OPT_msvr4_struct_return)); 1919 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1920 } 1921 } 1922 1923 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 1924 if (!T.isOSAIX()) 1925 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1926 << A->getSpelling() << T.str(); 1927 1928 // Since the storage mapping class is specified per csect, 1929 // without using data sections, it is less effective to use read-only 1930 // pointers. Using read-only pointers may cause other RO variables in the 1931 // same csect to become RW when the linker acts upon `-bforceimprw`; 1932 // therefore, we require that separate data sections 1933 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 1934 // data-sections since we have not found reasons to do otherwise that 1935 // overcome the user surprise of not respecting the setting. 1936 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 1937 Diags.Report(diag::err_roptr_requires_data_sections); 1938 1939 Opts.XCOFFReadOnlyPointers = true; 1940 } 1941 1942 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1943 if (!T.isOSAIX() || T.isPPC32()) 1944 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1945 << A->getSpelling() << T.str(); 1946 } 1947 1948 bool NeedLocTracking = false; 1949 1950 if (!Opts.OptRecordFile.empty()) 1951 NeedLocTracking = true; 1952 1953 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1954 Opts.OptRecordPasses = A->getValue(); 1955 NeedLocTracking = true; 1956 } 1957 1958 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1959 Opts.OptRecordFormat = A->getValue(); 1960 NeedLocTracking = true; 1961 } 1962 1963 Opts.OptimizationRemark = 1964 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1965 1966 Opts.OptimizationRemarkMissed = 1967 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1968 1969 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1970 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1971 1972 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1973 Opts.OptimizationRemarkMissed.hasValidPattern() || 1974 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1975 1976 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1977 bool UsingProfile = 1978 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 1979 1980 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1981 // An IR file will contain PGO as metadata 1982 IK.getLanguage() != Language::LLVM_IR) 1983 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1984 << "-fdiagnostics-show-hotness"; 1985 1986 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1987 if (auto *arg = 1988 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1989 auto ResultOrErr = 1990 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1991 1992 if (!ResultOrErr) { 1993 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1994 << "-fdiagnostics-hotness-threshold="; 1995 } else { 1996 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1997 if ((!Opts.DiagnosticsHotnessThreshold || 1998 *Opts.DiagnosticsHotnessThreshold > 0) && 1999 !UsingProfile) 2000 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2001 << "-fdiagnostics-hotness-threshold="; 2002 } 2003 } 2004 2005 if (auto *arg = 2006 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2007 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2008 2009 if (!ResultOrErr) { 2010 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2011 << "-fdiagnostics-misexpect-tolerance="; 2012 } else { 2013 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2014 if ((!Opts.DiagnosticsMisExpectTolerance || 2015 *Opts.DiagnosticsMisExpectTolerance > 0) && 2016 !UsingProfile) 2017 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2018 << "-fdiagnostics-misexpect-tolerance="; 2019 } 2020 } 2021 2022 // If the user requested to use a sample profile for PGO, then the 2023 // backend will need to track source location information so the profile 2024 // can be incorporated into the IR. 2025 if (UsingSampleProfile) 2026 NeedLocTracking = true; 2027 2028 if (!Opts.StackUsageOutput.empty()) 2029 NeedLocTracking = true; 2030 2031 // If the user requested a flag that requires source locations available in 2032 // the backend, make sure that the backend tracks source location information. 2033 if (NeedLocTracking && 2034 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2035 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2036 2037 // Parse -fsanitize-recover= arguments. 2038 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2039 parseSanitizerKinds("-fsanitize-recover=", 2040 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2041 Opts.SanitizeRecover); 2042 parseSanitizerKinds("-fsanitize-trap=", 2043 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2044 Opts.SanitizeTrap); 2045 2046 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2047 2048 if (Args.hasArg(options::OPT_ffinite_loops)) 2049 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2050 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2051 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2052 2053 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2054 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2055 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2056 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2057 2058 return Diags.getNumErrors() == NumErrorsBefore; 2059 } 2060 2061 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2062 ArgumentConsumer Consumer) { 2063 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2064 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2065 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2066 #include "clang/Driver/Options.inc" 2067 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2068 2069 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2070 GenerateArg(Consumer, OPT_show_includes); 2071 2072 for (const auto &Dep : Opts.ExtraDeps) { 2073 switch (Dep.second) { 2074 case EDK_SanitizeIgnorelist: 2075 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2076 continue; 2077 case EDK_ModuleFile: 2078 // Module file arguments are generated from FrontendOptions and 2079 // HeaderSearchOptions. 2080 continue; 2081 case EDK_ProfileList: 2082 // Profile list arguments are generated from LanguageOptions via the 2083 // marshalling infrastructure. 2084 continue; 2085 case EDK_DepFileEntry: 2086 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2087 break; 2088 } 2089 } 2090 } 2091 2092 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2093 ArgList &Args, DiagnosticsEngine &Diags, 2094 frontend::ActionKind Action, 2095 bool ShowLineMarkers) { 2096 unsigned NumErrorsBefore = Diags.getNumErrors(); 2097 2098 DependencyOutputOptions &DependencyOutputOpts = Opts; 2099 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2100 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2101 #include "clang/Driver/Options.inc" 2102 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2103 2104 if (Args.hasArg(OPT_show_includes)) { 2105 // Writing both /showIncludes and preprocessor output to stdout 2106 // would produce interleaved output, so use stderr for /showIncludes. 2107 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2108 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2109 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2110 else 2111 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2112 } else { 2113 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2114 } 2115 2116 // Add sanitizer ignorelists as extra dependencies. 2117 // They won't be discovered by the regular preprocessor, so 2118 // we let make / ninja to know about this implicit dependency. 2119 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2120 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2121 StringRef Val = A->getValue(); 2122 if (!Val.contains('=')) 2123 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2124 } 2125 if (Opts.IncludeSystemHeaders) { 2126 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2127 StringRef Val = A->getValue(); 2128 if (!Val.contains('=')) 2129 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2130 } 2131 } 2132 } 2133 2134 // -fprofile-list= dependencies. 2135 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2136 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2137 2138 // Propagate the extra dependencies. 2139 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2140 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2141 2142 // Only the -fmodule-file=<file> form. 2143 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2144 StringRef Val = A->getValue(); 2145 if (!Val.contains('=')) 2146 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2147 } 2148 2149 // Check for invalid combinations of header-include-format 2150 // and header-include-filtering. 2151 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2152 Opts.HeaderIncludeFiltering != HIFIL_None) || 2153 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2154 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2155 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2156 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2157 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2158 2159 return Diags.getNumErrors() == NumErrorsBefore; 2160 } 2161 2162 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2163 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2164 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2165 // Support both clang's -f[no-]color-diagnostics and gcc's 2166 // -f[no-]diagnostics-colors[=never|always|auto]. 2167 enum { 2168 Colors_On, 2169 Colors_Off, 2170 Colors_Auto 2171 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2172 for (auto *A : Args) { 2173 const Option &O = A->getOption(); 2174 if (O.matches(options::OPT_fcolor_diagnostics)) { 2175 ShowColors = Colors_On; 2176 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2177 ShowColors = Colors_Off; 2178 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2179 StringRef Value(A->getValue()); 2180 if (Value == "always") 2181 ShowColors = Colors_On; 2182 else if (Value == "never") 2183 ShowColors = Colors_Off; 2184 else if (Value == "auto") 2185 ShowColors = Colors_Auto; 2186 } 2187 } 2188 return ShowColors == Colors_On || 2189 (ShowColors == Colors_Auto && 2190 llvm::sys::Process::StandardErrHasColors()); 2191 } 2192 2193 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2194 DiagnosticsEngine &Diags) { 2195 bool Success = true; 2196 for (const auto &Prefix : VerifyPrefixes) { 2197 // Every prefix must start with a letter and contain only alphanumeric 2198 // characters, hyphens, and underscores. 2199 auto BadChar = llvm::find_if(Prefix, [](char C) { 2200 return !isAlphanumeric(C) && C != '-' && C != '_'; 2201 }); 2202 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2203 Success = false; 2204 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2205 Diags.Report(diag::note_drv_verify_prefix_spelling); 2206 } 2207 } 2208 return Success; 2209 } 2210 2211 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2212 ArgumentConsumer Consumer) { 2213 const FileSystemOptions &FileSystemOpts = Opts; 2214 2215 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2216 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2217 #include "clang/Driver/Options.inc" 2218 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2219 } 2220 2221 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2222 DiagnosticsEngine &Diags) { 2223 unsigned NumErrorsBefore = Diags.getNumErrors(); 2224 2225 FileSystemOptions &FileSystemOpts = Opts; 2226 2227 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2228 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2229 #include "clang/Driver/Options.inc" 2230 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2231 2232 return Diags.getNumErrors() == NumErrorsBefore; 2233 } 2234 2235 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2236 ArgumentConsumer Consumer) { 2237 const MigratorOptions &MigratorOpts = Opts; 2238 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2239 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2240 #include "clang/Driver/Options.inc" 2241 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2242 } 2243 2244 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2245 DiagnosticsEngine &Diags) { 2246 unsigned NumErrorsBefore = Diags.getNumErrors(); 2247 2248 MigratorOptions &MigratorOpts = Opts; 2249 2250 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2251 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2252 #include "clang/Driver/Options.inc" 2253 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2254 2255 return Diags.getNumErrors() == NumErrorsBefore; 2256 } 2257 2258 void CompilerInvocation::GenerateDiagnosticArgs(const DiagnosticOptions &Opts, 2259 ArgumentConsumer Consumer, 2260 bool DefaultDiagColor) { 2261 const DiagnosticOptions *DiagnosticOpts = &Opts; 2262 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2263 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2264 #include "clang/Driver/Options.inc" 2265 #undef DIAG_OPTION_WITH_MARSHALLING 2266 2267 if (!Opts.DiagnosticSerializationFile.empty()) 2268 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2269 Opts.DiagnosticSerializationFile); 2270 2271 if (Opts.ShowColors) 2272 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2273 2274 if (Opts.VerifyDiagnostics && 2275 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2276 GenerateArg(Consumer, OPT_verify); 2277 2278 for (const auto &Prefix : Opts.VerifyPrefixes) 2279 if (Prefix != "expected") 2280 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2281 2282 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2283 if (VIU == DiagnosticLevelMask::None) { 2284 // This is the default, don't generate anything. 2285 } else if (VIU == DiagnosticLevelMask::All) { 2286 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2287 } else { 2288 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2289 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2290 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2291 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2292 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2293 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2294 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2295 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2296 } 2297 2298 for (const auto &Warning : Opts.Warnings) { 2299 // This option is automatically generated from UndefPrefixes. 2300 if (Warning == "undef-prefix") 2301 continue; 2302 Consumer(StringRef("-W") + Warning); 2303 } 2304 2305 for (const auto &Remark : Opts.Remarks) { 2306 // These arguments are generated from OptimizationRemark fields of 2307 // CodeGenOptions. 2308 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2309 "pass-analysis", "no-pass-analysis", 2310 "pass-missed", "no-pass-missed"}; 2311 if (llvm::is_contained(IgnoredRemarks, Remark)) 2312 continue; 2313 2314 Consumer(StringRef("-R") + Remark); 2315 } 2316 } 2317 2318 std::unique_ptr<DiagnosticOptions> 2319 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2320 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2321 unsigned MissingArgIndex, MissingArgCount; 2322 InputArgList Args = getDriverOptTable().ParseArgs( 2323 Argv.slice(1), MissingArgIndex, MissingArgCount); 2324 2325 bool ShowColors = true; 2326 if (std::optional<std::string> NoColor = 2327 llvm::sys::Process::GetEnv("NO_COLOR"); 2328 NoColor && !NoColor->empty()) { 2329 // If the user set the NO_COLOR environment variable, we'll honor that 2330 // unless the command line overrides it. 2331 ShowColors = false; 2332 } 2333 2334 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2335 // Any errors that would be diagnosed here will also be diagnosed later, 2336 // when the DiagnosticsEngine actually exists. 2337 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2338 return DiagOpts; 2339 } 2340 2341 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2342 DiagnosticsEngine *Diags, 2343 bool DefaultDiagColor) { 2344 std::optional<DiagnosticsEngine> IgnoringDiags; 2345 if (!Diags) { 2346 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2347 new IgnoringDiagConsumer()); 2348 Diags = &*IgnoringDiags; 2349 } 2350 2351 unsigned NumErrorsBefore = Diags->getNumErrors(); 2352 2353 // The key paths of diagnostic options defined in Options.td start with 2354 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2355 DiagnosticOptions *DiagnosticOpts = &Opts; 2356 2357 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2358 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2359 #include "clang/Driver/Options.inc" 2360 #undef DIAG_OPTION_WITH_MARSHALLING 2361 2362 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2363 2364 if (Arg *A = 2365 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2366 Opts.DiagnosticSerializationFile = A->getValue(); 2367 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2368 2369 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2370 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2371 if (Args.hasArg(OPT_verify)) 2372 Opts.VerifyPrefixes.push_back("expected"); 2373 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2374 // then sort it to prepare for fast lookup using std::binary_search. 2375 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2376 Opts.VerifyDiagnostics = false; 2377 else 2378 llvm::sort(Opts.VerifyPrefixes); 2379 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2380 parseDiagnosticLevelMask( 2381 "-verify-ignore-unexpected=", 2382 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2383 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2384 DiagMask = DiagnosticLevelMask::All; 2385 Opts.setVerifyIgnoreUnexpected(DiagMask); 2386 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2387 Diags->Report(diag::warn_ignoring_ftabstop_value) 2388 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2389 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2390 } 2391 2392 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2393 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2394 2395 return Diags->getNumErrors() == NumErrorsBefore; 2396 } 2397 2398 /// Parse the argument to the -ftest-module-file-extension 2399 /// command-line argument. 2400 /// 2401 /// \returns true on error, false on success. 2402 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2403 std::string &BlockName, 2404 unsigned &MajorVersion, 2405 unsigned &MinorVersion, 2406 bool &Hashed, 2407 std::string &UserInfo) { 2408 SmallVector<StringRef, 5> Args; 2409 Arg.split(Args, ':', 5); 2410 if (Args.size() < 5) 2411 return true; 2412 2413 BlockName = std::string(Args[0]); 2414 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2415 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2416 if (Args[3].getAsInteger(2, Hashed)) return true; 2417 if (Args.size() > 4) 2418 UserInfo = std::string(Args[4]); 2419 return false; 2420 } 2421 2422 /// Return a table that associates command line option specifiers with the 2423 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2424 /// intentionally missing, as this case is handled separately from other 2425 /// frontend options. 2426 static const auto &getFrontendActionTable() { 2427 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2428 {frontend::ASTDeclList, OPT_ast_list}, 2429 2430 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2431 {frontend::ASTDump, OPT_ast_dump_all}, 2432 {frontend::ASTDump, OPT_ast_dump_EQ}, 2433 {frontend::ASTDump, OPT_ast_dump}, 2434 {frontend::ASTDump, OPT_ast_dump_lookups}, 2435 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2436 2437 {frontend::ASTPrint, OPT_ast_print}, 2438 {frontend::ASTView, OPT_ast_view}, 2439 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2440 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2441 {frontend::DumpTokens, OPT_dump_tokens}, 2442 {frontend::EmitAssembly, OPT_S}, 2443 {frontend::EmitBC, OPT_emit_llvm_bc}, 2444 {frontend::EmitHTML, OPT_emit_html}, 2445 {frontend::EmitLLVM, OPT_emit_llvm}, 2446 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2447 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2448 {frontend::EmitObj, OPT_emit_obj}, 2449 {frontend::ExtractAPI, OPT_extract_api}, 2450 2451 {frontend::FixIt, OPT_fixit_EQ}, 2452 {frontend::FixIt, OPT_fixit}, 2453 2454 {frontend::GenerateModule, OPT_emit_module}, 2455 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2456 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2457 {frontend::GeneratePCH, OPT_emit_pch}, 2458 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2459 {frontend::InitOnly, OPT_init_only}, 2460 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2461 {frontend::ModuleFileInfo, OPT_module_file_info}, 2462 {frontend::VerifyPCH, OPT_verify_pch}, 2463 {frontend::PrintPreamble, OPT_print_preamble}, 2464 {frontend::PrintPreprocessedInput, OPT_E}, 2465 {frontend::TemplightDump, OPT_templight_dump}, 2466 {frontend::RewriteMacros, OPT_rewrite_macros}, 2467 {frontend::RewriteObjC, OPT_rewrite_objc}, 2468 {frontend::RewriteTest, OPT_rewrite_test}, 2469 {frontend::RunAnalysis, OPT_analyze}, 2470 {frontend::MigrateSource, OPT_migrate}, 2471 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2472 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2473 OPT_print_dependency_directives_minimized_source}, 2474 }; 2475 2476 return Table; 2477 } 2478 2479 /// Maps command line option to frontend action. 2480 static std::optional<frontend::ActionKind> 2481 getFrontendAction(OptSpecifier &Opt) { 2482 for (const auto &ActionOpt : getFrontendActionTable()) 2483 if (ActionOpt.second == Opt.getID()) 2484 return ActionOpt.first; 2485 2486 return std::nullopt; 2487 } 2488 2489 /// Maps frontend action to command line option. 2490 static std::optional<OptSpecifier> 2491 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2492 for (const auto &ActionOpt : getFrontendActionTable()) 2493 if (ActionOpt.first == ProgramAction) 2494 return OptSpecifier(ActionOpt.second); 2495 2496 return std::nullopt; 2497 } 2498 2499 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2500 ArgumentConsumer Consumer, bool IsHeader) { 2501 const FrontendOptions &FrontendOpts = Opts; 2502 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2503 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2504 #include "clang/Driver/Options.inc" 2505 #undef FRONTEND_OPTION_WITH_MARSHALLING 2506 2507 std::optional<OptSpecifier> ProgramActionOpt = 2508 getProgramActionOpt(Opts.ProgramAction); 2509 2510 // Generating a simple flag covers most frontend actions. 2511 std::function<void()> GenerateProgramAction = [&]() { 2512 GenerateArg(Consumer, *ProgramActionOpt); 2513 }; 2514 2515 if (!ProgramActionOpt) { 2516 // PluginAction is the only program action handled separately. 2517 assert(Opts.ProgramAction == frontend::PluginAction && 2518 "Frontend action without option."); 2519 GenerateProgramAction = [&]() { 2520 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2521 }; 2522 } 2523 2524 // FIXME: Simplify the complex 'AST dump' command line. 2525 if (Opts.ProgramAction == frontend::ASTDump) { 2526 GenerateProgramAction = [&]() { 2527 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2528 // marshalling infrastructure. 2529 2530 if (Opts.ASTDumpFormat != ADOF_Default) { 2531 StringRef Format; 2532 switch (Opts.ASTDumpFormat) { 2533 case ADOF_Default: 2534 llvm_unreachable("Default AST dump format."); 2535 case ADOF_JSON: 2536 Format = "json"; 2537 break; 2538 } 2539 2540 if (Opts.ASTDumpAll) 2541 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2542 if (Opts.ASTDumpDecls) 2543 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2544 } else { 2545 if (Opts.ASTDumpAll) 2546 GenerateArg(Consumer, OPT_ast_dump_all); 2547 if (Opts.ASTDumpDecls) 2548 GenerateArg(Consumer, OPT_ast_dump); 2549 } 2550 }; 2551 } 2552 2553 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2554 GenerateProgramAction = [&]() { 2555 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2556 }; 2557 } 2558 2559 GenerateProgramAction(); 2560 2561 for (const auto &PluginArgs : Opts.PluginArgs) { 2562 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2563 for (const auto &PluginArg : PluginArgs.second) 2564 denormalizeString(Consumer, 2565 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2566 Opt.getKind(), 0, PluginArg); 2567 } 2568 2569 for (const auto &Ext : Opts.ModuleFileExtensions) 2570 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2571 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2572 2573 if (!Opts.CodeCompletionAt.FileName.empty()) 2574 GenerateArg(Consumer, OPT_code_completion_at, 2575 Opts.CodeCompletionAt.ToString()); 2576 2577 for (const auto &Plugin : Opts.Plugins) 2578 GenerateArg(Consumer, OPT_load, Plugin); 2579 2580 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2581 2582 for (const auto &ModuleFile : Opts.ModuleFiles) 2583 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2584 2585 if (Opts.AuxTargetCPU) 2586 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2587 2588 if (Opts.AuxTargetFeatures) 2589 for (const auto &Feature : *Opts.AuxTargetFeatures) 2590 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2591 2592 { 2593 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2594 StringRef ModuleMap = 2595 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2596 StringRef HeaderUnit = ""; 2597 switch (Opts.DashX.getHeaderUnitKind()) { 2598 case InputKind::HeaderUnit_None: 2599 break; 2600 case InputKind::HeaderUnit_User: 2601 HeaderUnit = "-user"; 2602 break; 2603 case InputKind::HeaderUnit_System: 2604 HeaderUnit = "-system"; 2605 break; 2606 case InputKind::HeaderUnit_Abs: 2607 HeaderUnit = "-header-unit"; 2608 break; 2609 } 2610 StringRef Header = IsHeader ? "-header" : ""; 2611 2612 StringRef Lang; 2613 switch (Opts.DashX.getLanguage()) { 2614 case Language::C: 2615 Lang = "c"; 2616 break; 2617 case Language::OpenCL: 2618 Lang = "cl"; 2619 break; 2620 case Language::OpenCLCXX: 2621 Lang = "clcpp"; 2622 break; 2623 case Language::CUDA: 2624 Lang = "cuda"; 2625 break; 2626 case Language::HIP: 2627 Lang = "hip"; 2628 break; 2629 case Language::CXX: 2630 Lang = "c++"; 2631 break; 2632 case Language::ObjC: 2633 Lang = "objective-c"; 2634 break; 2635 case Language::ObjCXX: 2636 Lang = "objective-c++"; 2637 break; 2638 case Language::RenderScript: 2639 Lang = "renderscript"; 2640 break; 2641 case Language::Asm: 2642 Lang = "assembler-with-cpp"; 2643 break; 2644 case Language::Unknown: 2645 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2646 "Generating -x argument for unknown language (not precompiled)."); 2647 Lang = "ast"; 2648 break; 2649 case Language::LLVM_IR: 2650 Lang = "ir"; 2651 break; 2652 case Language::HLSL: 2653 Lang = "hlsl"; 2654 break; 2655 } 2656 2657 GenerateArg(Consumer, OPT_x, 2658 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2659 } 2660 2661 // OPT_INPUT has a unique class, generate it directly. 2662 for (const auto &Input : Opts.Inputs) 2663 Consumer(Input.getFile()); 2664 } 2665 2666 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2667 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2668 unsigned NumErrorsBefore = Diags.getNumErrors(); 2669 2670 FrontendOptions &FrontendOpts = Opts; 2671 2672 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2673 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2674 #include "clang/Driver/Options.inc" 2675 #undef FRONTEND_OPTION_WITH_MARSHALLING 2676 2677 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2678 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2679 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2680 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2681 assert(ProgramAction && "Option specifier not in Action_Group."); 2682 2683 if (ProgramAction == frontend::ASTDump && 2684 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2685 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2686 .CaseLower("default", ADOF_Default) 2687 .CaseLower("json", ADOF_JSON) 2688 .Default(std::numeric_limits<unsigned>::max()); 2689 2690 if (Val != std::numeric_limits<unsigned>::max()) 2691 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2692 else { 2693 Diags.Report(diag::err_drv_invalid_value) 2694 << A->getAsString(Args) << A->getValue(); 2695 Opts.ASTDumpFormat = ADOF_Default; 2696 } 2697 } 2698 2699 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2700 Opts.FixItSuffix = A->getValue(); 2701 2702 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2703 StringRef ArgStr = 2704 Args.hasArg(OPT_interface_stub_version_EQ) 2705 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2706 : "ifs-v1"; 2707 if (ArgStr == "experimental-yaml-elf-v1" || 2708 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2709 ArgStr == "experimental-tapi-elf-v1") { 2710 std::string ErrorMessage = 2711 "Invalid interface stub format: " + ArgStr.str() + 2712 " is deprecated."; 2713 Diags.Report(diag::err_drv_invalid_value) 2714 << "Must specify a valid interface stub format type, ie: " 2715 "-interface-stub-version=ifs-v1" 2716 << ErrorMessage; 2717 ProgramAction = frontend::ParseSyntaxOnly; 2718 } else if (!ArgStr.startswith("ifs-")) { 2719 std::string ErrorMessage = 2720 "Invalid interface stub format: " + ArgStr.str() + "."; 2721 Diags.Report(diag::err_drv_invalid_value) 2722 << "Must specify a valid interface stub format type, ie: " 2723 "-interface-stub-version=ifs-v1" 2724 << ErrorMessage; 2725 ProgramAction = frontend::ParseSyntaxOnly; 2726 } 2727 } 2728 2729 Opts.ProgramAction = *ProgramAction; 2730 } 2731 2732 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2733 Opts.Plugins.emplace_back(A->getValue(0)); 2734 Opts.ProgramAction = frontend::PluginAction; 2735 Opts.ActionName = A->getValue(); 2736 } 2737 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2738 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2739 2740 for (const std::string &Arg : 2741 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2742 std::string BlockName; 2743 unsigned MajorVersion; 2744 unsigned MinorVersion; 2745 bool Hashed; 2746 std::string UserInfo; 2747 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2748 MinorVersion, Hashed, UserInfo)) { 2749 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2750 2751 continue; 2752 } 2753 2754 // Add the testing module file extension. 2755 Opts.ModuleFileExtensions.push_back( 2756 std::make_shared<TestModuleFileExtension>( 2757 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2758 } 2759 2760 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2761 Opts.CodeCompletionAt = 2762 ParsedSourceLocation::FromString(A->getValue()); 2763 if (Opts.CodeCompletionAt.FileName.empty()) 2764 Diags.Report(diag::err_drv_invalid_value) 2765 << A->getAsString(Args) << A->getValue(); 2766 } 2767 2768 Opts.Plugins = Args.getAllArgValues(OPT_load); 2769 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2770 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2771 // Only the -fmodule-file=<file> form. 2772 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2773 StringRef Val = A->getValue(); 2774 if (!Val.contains('=')) 2775 Opts.ModuleFiles.push_back(std::string(Val)); 2776 } 2777 2778 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2779 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2780 << "-emit-module"; 2781 2782 if (Args.hasArg(OPT_aux_target_cpu)) 2783 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2784 if (Args.hasArg(OPT_aux_target_feature)) 2785 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2786 2787 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2788 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2789 Diags.Report(diag::err_drv_argument_not_allowed_with) 2790 << "ARC migration" << "ObjC migration"; 2791 } 2792 2793 InputKind DashX(Language::Unknown); 2794 if (const Arg *A = Args.getLastArg(OPT_x)) { 2795 StringRef XValue = A->getValue(); 2796 2797 // Parse suffixes: 2798 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2799 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2800 bool Preprocessed = XValue.consume_back("-cpp-output"); 2801 bool ModuleMap = XValue.consume_back("-module-map"); 2802 // Detect and consume the header indicator. 2803 bool IsHeader = 2804 XValue != "precompiled-header" && XValue.consume_back("-header"); 2805 2806 // If we have c++-{user,system}-header, that indicates a header unit input 2807 // likewise, if the user put -fmodule-header together with a header with an 2808 // absolute path (header-unit-header). 2809 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2810 if (IsHeader || Preprocessed) { 2811 if (XValue.consume_back("-header-unit")) 2812 HUK = InputKind::HeaderUnit_Abs; 2813 else if (XValue.consume_back("-system")) 2814 HUK = InputKind::HeaderUnit_System; 2815 else if (XValue.consume_back("-user")) 2816 HUK = InputKind::HeaderUnit_User; 2817 } 2818 2819 // The value set by this processing is an un-preprocessed source which is 2820 // not intended to be a module map or header unit. 2821 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2822 HUK == InputKind::HeaderUnit_None; 2823 2824 // Principal languages. 2825 DashX = llvm::StringSwitch<InputKind>(XValue) 2826 .Case("c", Language::C) 2827 .Case("cl", Language::OpenCL) 2828 .Case("clcpp", Language::OpenCLCXX) 2829 .Case("cuda", Language::CUDA) 2830 .Case("hip", Language::HIP) 2831 .Case("c++", Language::CXX) 2832 .Case("objective-c", Language::ObjC) 2833 .Case("objective-c++", Language::ObjCXX) 2834 .Case("renderscript", Language::RenderScript) 2835 .Case("hlsl", Language::HLSL) 2836 .Default(Language::Unknown); 2837 2838 // "objc[++]-cpp-output" is an acceptable synonym for 2839 // "objective-c[++]-cpp-output". 2840 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2841 HUK == InputKind::HeaderUnit_None) 2842 DashX = llvm::StringSwitch<InputKind>(XValue) 2843 .Case("objc", Language::ObjC) 2844 .Case("objc++", Language::ObjCXX) 2845 .Default(Language::Unknown); 2846 2847 // Some special cases cannot be combined with suffixes. 2848 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2849 HUK == InputKind::HeaderUnit_None) 2850 DashX = llvm::StringSwitch<InputKind>(XValue) 2851 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2852 .Case("assembler-with-cpp", Language::Asm) 2853 .Cases("ast", "pcm", "precompiled-header", 2854 InputKind(Language::Unknown, InputKind::Precompiled)) 2855 .Case("ir", Language::LLVM_IR) 2856 .Default(Language::Unknown); 2857 2858 if (DashX.isUnknown()) 2859 Diags.Report(diag::err_drv_invalid_value) 2860 << A->getAsString(Args) << A->getValue(); 2861 2862 if (Preprocessed) 2863 DashX = DashX.getPreprocessed(); 2864 // A regular header is considered mutually exclusive with a header unit. 2865 if (HUK != InputKind::HeaderUnit_None) { 2866 DashX = DashX.withHeaderUnit(HUK); 2867 IsHeaderFile = true; 2868 } else if (IsHeaderFile) 2869 DashX = DashX.getHeader(); 2870 if (ModuleMap) 2871 DashX = DashX.withFormat(InputKind::ModuleMap); 2872 } 2873 2874 // '-' is the default input if none is given. 2875 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2876 Opts.Inputs.clear(); 2877 if (Inputs.empty()) 2878 Inputs.push_back("-"); 2879 2880 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2881 Inputs.size() > 1) 2882 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2883 2884 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2885 InputKind IK = DashX; 2886 if (IK.isUnknown()) { 2887 IK = FrontendOptions::getInputKindForExtension( 2888 StringRef(Inputs[i]).rsplit('.').second); 2889 // FIXME: Warn on this? 2890 if (IK.isUnknown()) 2891 IK = Language::C; 2892 // FIXME: Remove this hack. 2893 if (i == 0) 2894 DashX = IK; 2895 } 2896 2897 bool IsSystem = false; 2898 2899 // The -emit-module action implicitly takes a module map. 2900 if (Opts.ProgramAction == frontend::GenerateModule && 2901 IK.getFormat() == InputKind::Source) { 2902 IK = IK.withFormat(InputKind::ModuleMap); 2903 IsSystem = Opts.IsSystemModule; 2904 } 2905 2906 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2907 } 2908 2909 Opts.DashX = DashX; 2910 2911 return Diags.getNumErrors() == NumErrorsBefore; 2912 } 2913 2914 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2915 void *MainAddr) { 2916 std::string ClangExecutable = 2917 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2918 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2919 } 2920 2921 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2922 ArgumentConsumer Consumer) { 2923 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2924 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 2925 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2926 #include "clang/Driver/Options.inc" 2927 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2928 2929 if (Opts.UseLibcxx) 2930 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 2931 2932 if (!Opts.ModuleCachePath.empty()) 2933 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 2934 2935 for (const auto &File : Opts.PrebuiltModuleFiles) 2936 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 2937 2938 for (const auto &Path : Opts.PrebuiltModulePaths) 2939 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 2940 2941 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2942 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 2943 2944 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2945 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2946 std::optional<bool> IsFramework, 2947 std::optional<bool> IgnoreSysRoot) { 2948 return llvm::is_contained(Groups, Entry.Group) && 2949 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2950 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2951 }; 2952 2953 auto It = Opts.UserEntries.begin(); 2954 auto End = Opts.UserEntries.end(); 2955 2956 // Add -I..., -F..., and -index-header-map options in order. 2957 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 2958 std::nullopt, true); 2959 ++It) { 2960 OptSpecifier Opt = [It, Matches]() { 2961 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2962 return OPT_F; 2963 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2964 return OPT_I; 2965 if (Matches(*It, frontend::Angled, true, true)) 2966 return OPT_F; 2967 if (Matches(*It, frontend::Angled, false, true)) 2968 return OPT_I; 2969 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2970 }(); 2971 2972 if (It->Group == frontend::IndexHeaderMap) 2973 GenerateArg(Consumer, OPT_index_header_map); 2974 GenerateArg(Consumer, Opt, It->Path); 2975 }; 2976 2977 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2978 // have already been generated as "-I[xx]yy". If that's the case, their 2979 // position on command line was such that this has no semantic impact on 2980 // include paths. 2981 for (; It < End && 2982 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2983 ++It) { 2984 OptSpecifier Opt = 2985 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2986 GenerateArg(Consumer, Opt, It->Path); 2987 } 2988 2989 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2990 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2991 // command line was such that this has no semantic impact on include paths. 2992 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2993 GenerateArg(Consumer, OPT_idirafter, It->Path); 2994 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2995 GenerateArg(Consumer, OPT_iquote, It->Path); 2996 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 2997 ++It) 2998 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2999 It->Path); 3000 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3001 GenerateArg(Consumer, OPT_iframework, It->Path); 3002 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3003 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3004 3005 // Add the paths for the various language specific isystem flags. 3006 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3007 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3008 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3009 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3010 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3011 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3012 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3013 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3014 3015 // Add the internal paths from a driver that detects standard include paths. 3016 // Note: Some paths that came from "-internal-isystem" arguments may have 3017 // already been generated as "-isystem". If that's the case, their position on 3018 // command line was such that this has no semantic impact on include paths. 3019 for (; It < End && 3020 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3021 ++It) { 3022 OptSpecifier Opt = It->Group == frontend::System 3023 ? OPT_internal_isystem 3024 : OPT_internal_externc_isystem; 3025 GenerateArg(Consumer, Opt, It->Path); 3026 } 3027 3028 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3029 3030 // Add the path prefixes which are implicitly treated as being system headers. 3031 for (const auto &P : Opts.SystemHeaderPrefixes) { 3032 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3033 : OPT_no_system_header_prefix; 3034 GenerateArg(Consumer, Opt, P.Prefix); 3035 } 3036 3037 for (const std::string &F : Opts.VFSOverlayFiles) 3038 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3039 } 3040 3041 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3042 DiagnosticsEngine &Diags, 3043 const std::string &WorkingDir) { 3044 unsigned NumErrorsBefore = Diags.getNumErrors(); 3045 3046 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3047 3048 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3049 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3050 #include "clang/Driver/Options.inc" 3051 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3052 3053 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3054 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3055 3056 // Canonicalize -fmodules-cache-path before storing it. 3057 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3058 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3059 if (WorkingDir.empty()) 3060 llvm::sys::fs::make_absolute(P); 3061 else 3062 llvm::sys::fs::make_absolute(WorkingDir, P); 3063 } 3064 llvm::sys::path::remove_dots(P); 3065 Opts.ModuleCachePath = std::string(P.str()); 3066 3067 // Only the -fmodule-file=<name>=<file> form. 3068 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3069 StringRef Val = A->getValue(); 3070 if (Val.contains('=')) { 3071 auto Split = Val.split('='); 3072 Opts.PrebuiltModuleFiles.insert( 3073 {std::string(Split.first), std::string(Split.second)}); 3074 } 3075 } 3076 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3077 Opts.AddPrebuiltModulePath(A->getValue()); 3078 3079 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3080 StringRef MacroDef = A->getValue(); 3081 Opts.ModulesIgnoreMacros.insert( 3082 llvm::CachedHashString(MacroDef.split('=').first)); 3083 } 3084 3085 // Add -I..., -F..., and -index-header-map options in order. 3086 bool IsIndexHeaderMap = false; 3087 bool IsSysrootSpecified = 3088 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3089 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3090 if (A->getOption().matches(OPT_index_header_map)) { 3091 // -index-header-map applies to the next -I or -F. 3092 IsIndexHeaderMap = true; 3093 continue; 3094 } 3095 3096 frontend::IncludeDirGroup Group = 3097 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3098 3099 bool IsFramework = A->getOption().matches(OPT_F); 3100 std::string Path = A->getValue(); 3101 3102 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3103 SmallString<32> Buffer; 3104 llvm::sys::path::append(Buffer, Opts.Sysroot, 3105 llvm::StringRef(A->getValue()).substr(1)); 3106 Path = std::string(Buffer.str()); 3107 } 3108 3109 Opts.AddPath(Path, Group, IsFramework, 3110 /*IgnoreSysroot*/ true); 3111 IsIndexHeaderMap = false; 3112 } 3113 3114 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3115 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3116 for (const auto *A : 3117 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3118 if (A->getOption().matches(OPT_iprefix)) 3119 Prefix = A->getValue(); 3120 else if (A->getOption().matches(OPT_iwithprefix)) 3121 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3122 else 3123 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3124 } 3125 3126 for (const auto *A : Args.filtered(OPT_idirafter)) 3127 Opts.AddPath(A->getValue(), frontend::After, false, true); 3128 for (const auto *A : Args.filtered(OPT_iquote)) 3129 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3130 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3131 Opts.AddPath(A->getValue(), frontend::System, false, 3132 !A->getOption().matches(OPT_iwithsysroot)); 3133 for (const auto *A : Args.filtered(OPT_iframework)) 3134 Opts.AddPath(A->getValue(), frontend::System, true, true); 3135 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3136 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3137 /*IgnoreSysRoot=*/false); 3138 3139 // Add the paths for the various language specific isystem flags. 3140 for (const auto *A : Args.filtered(OPT_c_isystem)) 3141 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3142 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3143 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3144 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3145 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3146 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3147 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3148 3149 // Add the internal paths from a driver that detects standard include paths. 3150 for (const auto *A : 3151 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3152 frontend::IncludeDirGroup Group = frontend::System; 3153 if (A->getOption().matches(OPT_internal_externc_isystem)) 3154 Group = frontend::ExternCSystem; 3155 Opts.AddPath(A->getValue(), Group, false, true); 3156 } 3157 3158 // Add the path prefixes which are implicitly treated as being system headers. 3159 for (const auto *A : 3160 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3161 Opts.AddSystemHeaderPrefix( 3162 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3163 3164 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3165 Opts.AddVFSOverlayFile(A->getValue()); 3166 3167 return Diags.getNumErrors() == NumErrorsBefore; 3168 } 3169 3170 /// Check if input file kind and language standard are compatible. 3171 static bool IsInputCompatibleWithStandard(InputKind IK, 3172 const LangStandard &S) { 3173 switch (IK.getLanguage()) { 3174 case Language::Unknown: 3175 case Language::LLVM_IR: 3176 llvm_unreachable("should not parse language flags for this input"); 3177 3178 case Language::C: 3179 case Language::ObjC: 3180 case Language::RenderScript: 3181 return S.getLanguage() == Language::C; 3182 3183 case Language::OpenCL: 3184 return S.getLanguage() == Language::OpenCL || 3185 S.getLanguage() == Language::OpenCLCXX; 3186 3187 case Language::OpenCLCXX: 3188 return S.getLanguage() == Language::OpenCLCXX; 3189 3190 case Language::CXX: 3191 case Language::ObjCXX: 3192 return S.getLanguage() == Language::CXX; 3193 3194 case Language::CUDA: 3195 // FIXME: What -std= values should be permitted for CUDA compilations? 3196 return S.getLanguage() == Language::CUDA || 3197 S.getLanguage() == Language::CXX; 3198 3199 case Language::HIP: 3200 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3201 3202 case Language::Asm: 3203 // Accept (and ignore) all -std= values. 3204 // FIXME: The -std= value is not ignored; it affects the tokenization 3205 // and preprocessing rules if we're preprocessing this asm input. 3206 return true; 3207 3208 case Language::HLSL: 3209 return S.getLanguage() == Language::HLSL; 3210 } 3211 3212 llvm_unreachable("unexpected input language"); 3213 } 3214 3215 /// Get language name for given input kind. 3216 static StringRef GetInputKindName(InputKind IK) { 3217 switch (IK.getLanguage()) { 3218 case Language::C: 3219 return "C"; 3220 case Language::ObjC: 3221 return "Objective-C"; 3222 case Language::CXX: 3223 return "C++"; 3224 case Language::ObjCXX: 3225 return "Objective-C++"; 3226 case Language::OpenCL: 3227 return "OpenCL"; 3228 case Language::OpenCLCXX: 3229 return "C++ for OpenCL"; 3230 case Language::CUDA: 3231 return "CUDA"; 3232 case Language::RenderScript: 3233 return "RenderScript"; 3234 case Language::HIP: 3235 return "HIP"; 3236 3237 case Language::Asm: 3238 return "Asm"; 3239 case Language::LLVM_IR: 3240 return "LLVM IR"; 3241 3242 case Language::HLSL: 3243 return "HLSL"; 3244 3245 case Language::Unknown: 3246 break; 3247 } 3248 llvm_unreachable("unknown input language"); 3249 } 3250 3251 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3252 ArgumentConsumer Consumer, 3253 const llvm::Triple &T, InputKind IK) { 3254 if (IK.getFormat() == InputKind::Precompiled || 3255 IK.getLanguage() == Language::LLVM_IR) { 3256 if (Opts.ObjCAutoRefCount) 3257 GenerateArg(Consumer, OPT_fobjc_arc); 3258 if (Opts.PICLevel != 0) 3259 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3260 if (Opts.PIE) 3261 GenerateArg(Consumer, OPT_pic_is_pie); 3262 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3263 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3264 3265 return; 3266 } 3267 3268 OptSpecifier StdOpt; 3269 switch (Opts.LangStd) { 3270 case LangStandard::lang_opencl10: 3271 case LangStandard::lang_opencl11: 3272 case LangStandard::lang_opencl12: 3273 case LangStandard::lang_opencl20: 3274 case LangStandard::lang_opencl30: 3275 case LangStandard::lang_openclcpp10: 3276 case LangStandard::lang_openclcpp2021: 3277 StdOpt = OPT_cl_std_EQ; 3278 break; 3279 default: 3280 StdOpt = OPT_std_EQ; 3281 break; 3282 } 3283 3284 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3285 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3286 3287 if (Opts.IncludeDefaultHeader) 3288 GenerateArg(Consumer, OPT_finclude_default_header); 3289 if (Opts.DeclareOpenCLBuiltins) 3290 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3291 3292 const LangOptions *LangOpts = &Opts; 3293 3294 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3295 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3296 #include "clang/Driver/Options.inc" 3297 #undef LANG_OPTION_WITH_MARSHALLING 3298 3299 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3300 3301 if (Opts.ObjC) { 3302 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3303 3304 if (Opts.GC == LangOptions::GCOnly) 3305 GenerateArg(Consumer, OPT_fobjc_gc_only); 3306 else if (Opts.GC == LangOptions::HybridGC) 3307 GenerateArg(Consumer, OPT_fobjc_gc); 3308 else if (Opts.ObjCAutoRefCount == 1) 3309 GenerateArg(Consumer, OPT_fobjc_arc); 3310 3311 if (Opts.ObjCWeakRuntime) 3312 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3313 3314 if (Opts.ObjCWeak) 3315 GenerateArg(Consumer, OPT_fobjc_weak); 3316 3317 if (Opts.ObjCSubscriptingLegacyRuntime) 3318 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3319 } 3320 3321 if (Opts.GNUCVersion != 0) { 3322 unsigned Major = Opts.GNUCVersion / 100 / 100; 3323 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3324 unsigned Patch = Opts.GNUCVersion % 100; 3325 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3326 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3327 } 3328 3329 if (Opts.IgnoreXCOFFVisibility) 3330 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3331 3332 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3333 GenerateArg(Consumer, OPT_ftrapv); 3334 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3335 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3336 GenerateArg(Consumer, OPT_fwrapv); 3337 } 3338 3339 if (Opts.MSCompatibilityVersion != 0) { 3340 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3341 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3342 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3343 GenerateArg(Consumer, OPT_fms_compatibility_version, 3344 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3345 } 3346 3347 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3348 if (!Opts.Trigraphs) 3349 GenerateArg(Consumer, OPT_fno_trigraphs); 3350 } else { 3351 if (Opts.Trigraphs) 3352 GenerateArg(Consumer, OPT_ftrigraphs); 3353 } 3354 3355 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3356 GenerateArg(Consumer, OPT_fblocks); 3357 3358 if (Opts.ConvergentFunctions && 3359 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3360 GenerateArg(Consumer, OPT_fconvergent_functions); 3361 3362 if (Opts.NoBuiltin && !Opts.Freestanding) 3363 GenerateArg(Consumer, OPT_fno_builtin); 3364 3365 if (!Opts.NoBuiltin) 3366 for (const auto &Func : Opts.NoBuiltinFuncs) 3367 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3368 3369 if (Opts.LongDoubleSize == 128) 3370 GenerateArg(Consumer, OPT_mlong_double_128); 3371 else if (Opts.LongDoubleSize == 64) 3372 GenerateArg(Consumer, OPT_mlong_double_64); 3373 else if (Opts.LongDoubleSize == 80) 3374 GenerateArg(Consumer, OPT_mlong_double_80); 3375 3376 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3377 3378 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3379 // '-fopenmp-targets='. 3380 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3381 GenerateArg(Consumer, OPT_fopenmp); 3382 3383 if (Opts.OpenMP != 51) 3384 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3385 3386 if (!Opts.OpenMPUseTLS) 3387 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3388 3389 if (Opts.OpenMPIsTargetDevice) 3390 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3391 3392 if (Opts.OpenMPIRBuilder) 3393 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3394 } 3395 3396 if (Opts.OpenMPSimd) { 3397 GenerateArg(Consumer, OPT_fopenmp_simd); 3398 3399 if (Opts.OpenMP != 51) 3400 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3401 } 3402 3403 if (Opts.OpenMPThreadSubscription) 3404 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3405 3406 if (Opts.OpenMPTeamSubscription) 3407 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3408 3409 if (Opts.OpenMPTargetDebug != 0) 3410 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3411 Twine(Opts.OpenMPTargetDebug)); 3412 3413 if (Opts.OpenMPCUDANumSMs != 0) 3414 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3415 Twine(Opts.OpenMPCUDANumSMs)); 3416 3417 if (Opts.OpenMPCUDABlocksPerSM != 0) 3418 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3419 Twine(Opts.OpenMPCUDABlocksPerSM)); 3420 3421 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3422 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3423 Twine(Opts.OpenMPCUDAReductionBufNum)); 3424 3425 if (!Opts.OMPTargetTriples.empty()) { 3426 std::string Targets; 3427 llvm::raw_string_ostream OS(Targets); 3428 llvm::interleave( 3429 Opts.OMPTargetTriples, OS, 3430 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3431 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, OS.str()); 3432 } 3433 3434 if (!Opts.OMPHostIRFile.empty()) 3435 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3436 3437 if (Opts.OpenMPCUDAMode) 3438 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3439 3440 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3441 // generated from CodeGenOptions. 3442 3443 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3444 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3445 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3446 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3447 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3448 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3449 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3450 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3451 3452 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3453 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3454 3455 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3456 for (const std::string &F : Opts.NoSanitizeFiles) 3457 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3458 3459 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3460 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3461 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3462 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3463 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3464 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3465 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3466 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3467 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3468 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3469 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3470 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3471 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3472 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3473 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3474 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3475 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3476 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3477 3478 if (Opts.getSignReturnAddressScope() == 3479 LangOptions::SignReturnAddressScopeKind::All) 3480 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3481 else if (Opts.getSignReturnAddressScope() == 3482 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3483 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3484 3485 if (Opts.getSignReturnAddressKey() == 3486 LangOptions::SignReturnAddressKeyKind::BKey) 3487 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3488 3489 if (Opts.CXXABI) 3490 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3491 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3492 3493 if (Opts.RelativeCXXABIVTables) 3494 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3495 else 3496 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3497 3498 if (Opts.UseTargetPathSeparator) 3499 GenerateArg(Consumer, OPT_ffile_reproducible); 3500 else 3501 GenerateArg(Consumer, OPT_fno_file_reproducible); 3502 3503 for (const auto &MP : Opts.MacroPrefixMap) 3504 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3505 3506 if (!Opts.RandstructSeed.empty()) 3507 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3508 } 3509 3510 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3511 InputKind IK, const llvm::Triple &T, 3512 std::vector<std::string> &Includes, 3513 DiagnosticsEngine &Diags) { 3514 unsigned NumErrorsBefore = Diags.getNumErrors(); 3515 3516 if (IK.getFormat() == InputKind::Precompiled || 3517 IK.getLanguage() == Language::LLVM_IR) { 3518 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3519 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3520 // what the input type is. 3521 if (Args.hasArg(OPT_fobjc_arc)) 3522 Opts.ObjCAutoRefCount = 1; 3523 // PICLevel and PIELevel are needed during code generation and this should 3524 // be set regardless of the input type. 3525 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3526 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3527 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3528 Diags, Opts.Sanitize); 3529 3530 return Diags.getNumErrors() == NumErrorsBefore; 3531 } 3532 3533 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3534 // FIXME: Should we really be parsing this for an Language::Asm input? 3535 3536 // FIXME: Cleanup per-file based stuff. 3537 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3538 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3539 LangStd = LangStandard::getLangKind(A->getValue()); 3540 if (LangStd == LangStandard::lang_unspecified) { 3541 Diags.Report(diag::err_drv_invalid_value) 3542 << A->getAsString(Args) << A->getValue(); 3543 // Report supported standards with short description. 3544 for (unsigned KindValue = 0; 3545 KindValue != LangStandard::lang_unspecified; 3546 ++KindValue) { 3547 const LangStandard &Std = LangStandard::getLangStandardForKind( 3548 static_cast<LangStandard::Kind>(KindValue)); 3549 if (IsInputCompatibleWithStandard(IK, Std)) { 3550 auto Diag = Diags.Report(diag::note_drv_use_standard); 3551 Diag << Std.getName() << Std.getDescription(); 3552 unsigned NumAliases = 0; 3553 #define LANGSTANDARD(id, name, lang, desc, features) 3554 #define LANGSTANDARD_ALIAS(id, alias) \ 3555 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3556 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3557 #include "clang/Basic/LangStandards.def" 3558 Diag << NumAliases; 3559 #define LANGSTANDARD(id, name, lang, desc, features) 3560 #define LANGSTANDARD_ALIAS(id, alias) \ 3561 if (KindValue == LangStandard::lang_##id) Diag << alias; 3562 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3563 #include "clang/Basic/LangStandards.def" 3564 } 3565 } 3566 } else { 3567 // Valid standard, check to make sure language and standard are 3568 // compatible. 3569 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3570 if (!IsInputCompatibleWithStandard(IK, Std)) { 3571 Diags.Report(diag::err_drv_argument_not_allowed_with) 3572 << A->getAsString(Args) << GetInputKindName(IK); 3573 } 3574 } 3575 } 3576 3577 // -cl-std only applies for OpenCL language standards. 3578 // Override the -std option in this case. 3579 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3580 LangStandard::Kind OpenCLLangStd 3581 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3582 .Cases("cl", "CL", LangStandard::lang_opencl10) 3583 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3584 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3585 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3586 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3587 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3588 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3589 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3590 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3591 .Default(LangStandard::lang_unspecified); 3592 3593 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3594 Diags.Report(diag::err_drv_invalid_value) 3595 << A->getAsString(Args) << A->getValue(); 3596 } 3597 else 3598 LangStd = OpenCLLangStd; 3599 } 3600 3601 // These need to be parsed now. They are used to set OpenCL defaults. 3602 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3603 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3604 3605 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3606 3607 // The key paths of codegen options defined in Options.td start with 3608 // "LangOpts->". Let's provide the expected variable name and type. 3609 LangOptions *LangOpts = &Opts; 3610 3611 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3612 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3613 #include "clang/Driver/Options.inc" 3614 #undef LANG_OPTION_WITH_MARSHALLING 3615 3616 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3617 StringRef Name = A->getValue(); 3618 if (Name == "full" || Name == "branch") { 3619 Opts.CFProtectionBranch = 1; 3620 } 3621 } 3622 3623 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3624 !Args.hasArg(OPT_sycl_std_EQ)) { 3625 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3626 // provide -sycl-std=, we want to default it to whatever the default SYCL 3627 // version is. I could not find a way to express this with the options 3628 // tablegen because we still want this value to be SYCL_None when the user 3629 // is not in device or host mode. 3630 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3631 } 3632 3633 if (Opts.ObjC) { 3634 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3635 StringRef value = arg->getValue(); 3636 if (Opts.ObjCRuntime.tryParse(value)) 3637 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3638 } 3639 3640 if (Args.hasArg(OPT_fobjc_gc_only)) 3641 Opts.setGC(LangOptions::GCOnly); 3642 else if (Args.hasArg(OPT_fobjc_gc)) 3643 Opts.setGC(LangOptions::HybridGC); 3644 else if (Args.hasArg(OPT_fobjc_arc)) { 3645 Opts.ObjCAutoRefCount = 1; 3646 if (!Opts.ObjCRuntime.allowsARC()) 3647 Diags.Report(diag::err_arc_unsupported_on_runtime); 3648 } 3649 3650 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3651 // whether the feature is actually enabled. This is predominantly 3652 // determined by -fobjc-runtime, but we allow it to be overridden 3653 // from the command line for testing purposes. 3654 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3655 Opts.ObjCWeakRuntime = 1; 3656 else 3657 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3658 3659 // ObjCWeak determines whether __weak is actually enabled. 3660 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3661 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3662 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3663 assert(!Opts.ObjCWeak); 3664 } else if (Opts.getGC() != LangOptions::NonGC) { 3665 Diags.Report(diag::err_objc_weak_with_gc); 3666 } else if (!Opts.ObjCWeakRuntime) { 3667 Diags.Report(diag::err_objc_weak_unsupported); 3668 } else { 3669 Opts.ObjCWeak = 1; 3670 } 3671 } else if (Opts.ObjCAutoRefCount) { 3672 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3673 } 3674 3675 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3676 Opts.ObjCSubscriptingLegacyRuntime = 3677 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3678 } 3679 3680 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3681 // Check that the version has 1 to 3 components and the minor and patch 3682 // versions fit in two decimal digits. 3683 VersionTuple GNUCVer; 3684 bool Invalid = GNUCVer.tryParse(A->getValue()); 3685 unsigned Major = GNUCVer.getMajor(); 3686 unsigned Minor = GNUCVer.getMinor().value_or(0); 3687 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3688 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3689 Diags.Report(diag::err_drv_invalid_value) 3690 << A->getAsString(Args) << A->getValue(); 3691 } 3692 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3693 } 3694 3695 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3696 Opts.IgnoreXCOFFVisibility = 1; 3697 3698 if (Args.hasArg(OPT_ftrapv)) { 3699 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3700 // Set the handler, if one is specified. 3701 Opts.OverflowHandler = 3702 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3703 } 3704 else if (Args.hasArg(OPT_fwrapv)) 3705 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3706 3707 Opts.MSCompatibilityVersion = 0; 3708 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3709 VersionTuple VT; 3710 if (VT.tryParse(A->getValue())) 3711 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3712 << A->getValue(); 3713 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3714 VT.getMinor().value_or(0) * 100000 + 3715 VT.getSubminor().value_or(0); 3716 } 3717 3718 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3719 // is specified, or -std is set to a conforming mode. 3720 // Trigraphs are disabled by default in c++1z onwards. 3721 // For z/OS, trigraphs are enabled by default (without regard to the above). 3722 Opts.Trigraphs = 3723 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3724 Opts.Trigraphs = 3725 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3726 3727 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3728 && Opts.OpenCLVersion == 200); 3729 3730 Opts.ConvergentFunctions = Args.hasArg(OPT_fconvergent_functions) || 3731 Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3732 Opts.SYCLIsDevice; 3733 3734 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3735 if (!Opts.NoBuiltin) 3736 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3737 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3738 if (A->getOption().matches(options::OPT_mlong_double_64)) 3739 Opts.LongDoubleSize = 64; 3740 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3741 Opts.LongDoubleSize = 80; 3742 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3743 Opts.LongDoubleSize = 128; 3744 else 3745 Opts.LongDoubleSize = 0; 3746 } 3747 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3748 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3749 3750 llvm::sort(Opts.ModuleFeatures); 3751 3752 // -mrtd option 3753 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3754 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3755 Diags.Report(diag::err_drv_argument_not_allowed_with) 3756 << A->getSpelling() << "-fdefault-calling-conv"; 3757 else { 3758 if (T.getArch() != llvm::Triple::x86) 3759 Diags.Report(diag::err_drv_argument_not_allowed_with) 3760 << A->getSpelling() << T.getTriple(); 3761 else 3762 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3763 } 3764 } 3765 3766 // Check if -fopenmp is specified and set default version to 5.0. 3767 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 3768 // Check if -fopenmp-simd is specified. 3769 bool IsSimdSpecified = 3770 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3771 /*Default=*/false); 3772 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3773 Opts.OpenMPUseTLS = 3774 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3775 Opts.OpenMPIsTargetDevice = 3776 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 3777 Opts.OpenMPIRBuilder = 3778 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3779 bool IsTargetSpecified = 3780 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3781 3782 Opts.ConvergentFunctions = 3783 Opts.ConvergentFunctions || Opts.OpenMPIsTargetDevice; 3784 3785 if (Opts.OpenMP || Opts.OpenMPSimd) { 3786 if (int Version = getLastArgIntValue( 3787 Args, OPT_fopenmp_version_EQ, 3788 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 3789 Opts.OpenMP = Version; 3790 // Provide diagnostic when a given target is not expected to be an OpenMP 3791 // device or host. 3792 if (!Opts.OpenMPIsTargetDevice) { 3793 switch (T.getArch()) { 3794 default: 3795 break; 3796 // Add unsupported host targets here: 3797 case llvm::Triple::nvptx: 3798 case llvm::Triple::nvptx64: 3799 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3800 break; 3801 } 3802 } 3803 } 3804 3805 // Set the flag to prevent the implementation from emitting device exception 3806 // handling code for those requiring so. 3807 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 3808 Opts.OpenCLCPlusPlus) { 3809 3810 Opts.Exceptions = 0; 3811 Opts.CXXExceptions = 0; 3812 } 3813 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 3814 Opts.OpenMPCUDANumSMs = 3815 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3816 Opts.OpenMPCUDANumSMs, Diags); 3817 Opts.OpenMPCUDABlocksPerSM = 3818 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3819 Opts.OpenMPCUDABlocksPerSM, Diags); 3820 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3821 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3822 Opts.OpenMPCUDAReductionBufNum, Diags); 3823 } 3824 3825 // Set the value of the debugging flag used in the new offloading device RTL. 3826 // Set either by a specific value or to a default if not specified. 3827 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3828 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3829 Opts.OpenMPTargetDebug = getLastArgIntValue( 3830 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3831 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3832 Opts.OpenMPTargetDebug = 1; 3833 } 3834 3835 if (Opts.OpenMPIsTargetDevice) { 3836 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3837 Opts.OpenMPTeamSubscription = true; 3838 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3839 Opts.OpenMPThreadSubscription = true; 3840 } 3841 3842 // Get the OpenMP target triples if any. 3843 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3844 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3845 auto getArchPtrSize = [](const llvm::Triple &T) { 3846 if (T.isArch16Bit()) 3847 return Arch16Bit; 3848 if (T.isArch32Bit()) 3849 return Arch32Bit; 3850 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3851 return Arch64Bit; 3852 }; 3853 3854 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3855 llvm::Triple TT(A->getValue(i)); 3856 3857 if (TT.getArch() == llvm::Triple::UnknownArch || 3858 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3859 TT.getArch() == llvm::Triple::nvptx || 3860 TT.getArch() == llvm::Triple::nvptx64 || 3861 TT.getArch() == llvm::Triple::amdgcn || 3862 TT.getArch() == llvm::Triple::x86 || 3863 TT.getArch() == llvm::Triple::x86_64)) 3864 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3865 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3866 Diags.Report(diag::err_drv_incompatible_omp_arch) 3867 << A->getValue(i) << T.str(); 3868 else 3869 Opts.OMPTargetTriples.push_back(TT); 3870 } 3871 } 3872 3873 // Get OpenMP host file path if any and report if a non existent file is 3874 // found 3875 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3876 Opts.OMPHostIRFile = A->getValue(); 3877 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3878 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3879 << Opts.OMPHostIRFile; 3880 } 3881 3882 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3883 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 3884 (T.isNVPTX() || T.isAMDGCN()) && 3885 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3886 3887 // FIXME: Eliminate this dependency. 3888 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3889 OptSize = getOptimizationLevelSize(Args); 3890 Opts.Optimize = Opt != 0; 3891 Opts.OptimizeSize = OptSize != 0; 3892 3893 // This is the __NO_INLINE__ define, which just depends on things like the 3894 // optimization level and -fno-inline, not actually whether the backend has 3895 // inlining enabled. 3896 Opts.NoInlineDefine = !Opts.Optimize; 3897 if (Arg *InlineArg = Args.getLastArg( 3898 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3899 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3900 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3901 Opts.NoInlineDefine = true; 3902 3903 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3904 StringRef Val = A->getValue(); 3905 if (Val == "fast") 3906 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3907 else if (Val == "on") 3908 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3909 else if (Val == "off") 3910 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3911 else if (Val == "fast-honor-pragmas") 3912 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3913 else 3914 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3915 } 3916 3917 // Parse -fsanitize= arguments. 3918 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3919 Diags, Opts.Sanitize); 3920 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3921 std::vector<std::string> systemIgnorelists = 3922 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3923 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3924 systemIgnorelists.begin(), 3925 systemIgnorelists.end()); 3926 3927 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3928 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3929 3930 StringRef Ver = A->getValue(); 3931 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3932 unsigned Major, Minor = 0; 3933 3934 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3935 // y or y.0 (4 <= y <= current version). 3936 if (!VerParts.first.startswith("0") && 3937 !VerParts.first.getAsInteger(10, Major) && 3938 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3939 (Major == 3 ? VerParts.second.size() == 1 && 3940 !VerParts.second.getAsInteger(10, Minor) 3941 : VerParts.first.size() == Ver.size() || 3942 VerParts.second == "0")) { 3943 // Got a valid version number. 3944 if (Major == 3 && Minor <= 8) 3945 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3946 else if (Major <= 4) 3947 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3948 else if (Major <= 6) 3949 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3950 else if (Major <= 7) 3951 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3952 else if (Major <= 9) 3953 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3954 else if (Major <= 11) 3955 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3956 else if (Major <= 12) 3957 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 3958 else if (Major <= 14) 3959 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 3960 else if (Major <= 15) 3961 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 3962 } else if (Ver != "latest") { 3963 Diags.Report(diag::err_drv_invalid_value) 3964 << A->getAsString(Args) << A->getValue(); 3965 } 3966 } 3967 3968 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3969 StringRef SignScope = A->getValue(); 3970 3971 if (SignScope.equals_insensitive("none")) 3972 Opts.setSignReturnAddressScope( 3973 LangOptions::SignReturnAddressScopeKind::None); 3974 else if (SignScope.equals_insensitive("all")) 3975 Opts.setSignReturnAddressScope( 3976 LangOptions::SignReturnAddressScopeKind::All); 3977 else if (SignScope.equals_insensitive("non-leaf")) 3978 Opts.setSignReturnAddressScope( 3979 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3980 else 3981 Diags.Report(diag::err_drv_invalid_value) 3982 << A->getAsString(Args) << SignScope; 3983 3984 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3985 StringRef SignKey = A->getValue(); 3986 if (!SignScope.empty() && !SignKey.empty()) { 3987 if (SignKey.equals_insensitive("a_key")) 3988 Opts.setSignReturnAddressKey( 3989 LangOptions::SignReturnAddressKeyKind::AKey); 3990 else if (SignKey.equals_insensitive("b_key")) 3991 Opts.setSignReturnAddressKey( 3992 LangOptions::SignReturnAddressKeyKind::BKey); 3993 else 3994 Diags.Report(diag::err_drv_invalid_value) 3995 << A->getAsString(Args) << SignKey; 3996 } 3997 } 3998 } 3999 4000 // The value can be empty, which indicates the system default should be used. 4001 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4002 if (!CXXABI.empty()) { 4003 if (!TargetCXXABI::isABI(CXXABI)) { 4004 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4005 } else { 4006 auto Kind = TargetCXXABI::getKind(CXXABI); 4007 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4008 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4009 else 4010 Opts.CXXABI = Kind; 4011 } 4012 } 4013 4014 Opts.RelativeCXXABIVTables = 4015 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4016 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4017 TargetCXXABI::usesRelativeVTables(T)); 4018 4019 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4020 auto Split = StringRef(A).split('='); 4021 Opts.MacroPrefixMap.insert( 4022 {std::string(Split.first), std::string(Split.second)}); 4023 } 4024 4025 Opts.UseTargetPathSeparator = 4026 !Args.getLastArg(OPT_fno_file_reproducible) && 4027 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4028 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4029 Args.getLastArg(OPT_ffile_reproducible)); 4030 4031 // Error if -mvscale-min is unbounded. 4032 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4033 unsigned VScaleMin; 4034 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4035 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4036 } 4037 4038 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4039 std::ifstream SeedFile(A->getValue(0)); 4040 4041 if (!SeedFile.is_open()) 4042 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4043 << A->getValue(0); 4044 4045 std::getline(SeedFile, Opts.RandstructSeed); 4046 } 4047 4048 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4049 Opts.RandstructSeed = A->getValue(0); 4050 4051 // Validate options for HLSL 4052 if (Opts.HLSL) { 4053 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4054 T.getOS() == llvm::Triple::ShaderModel; 4055 if (!SupportedTarget) 4056 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4057 } 4058 4059 return Diags.getNumErrors() == NumErrorsBefore; 4060 } 4061 4062 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4063 switch (Action) { 4064 case frontend::ASTDeclList: 4065 case frontend::ASTDump: 4066 case frontend::ASTPrint: 4067 case frontend::ASTView: 4068 case frontend::EmitAssembly: 4069 case frontend::EmitBC: 4070 case frontend::EmitHTML: 4071 case frontend::EmitLLVM: 4072 case frontend::EmitLLVMOnly: 4073 case frontend::EmitCodeGenOnly: 4074 case frontend::EmitObj: 4075 case frontend::ExtractAPI: 4076 case frontend::FixIt: 4077 case frontend::GenerateModule: 4078 case frontend::GenerateModuleInterface: 4079 case frontend::GenerateHeaderUnit: 4080 case frontend::GeneratePCH: 4081 case frontend::GenerateInterfaceStubs: 4082 case frontend::ParseSyntaxOnly: 4083 case frontend::ModuleFileInfo: 4084 case frontend::VerifyPCH: 4085 case frontend::PluginAction: 4086 case frontend::RewriteObjC: 4087 case frontend::RewriteTest: 4088 case frontend::RunAnalysis: 4089 case frontend::TemplightDump: 4090 case frontend::MigrateSource: 4091 return false; 4092 4093 case frontend::DumpCompilerOptions: 4094 case frontend::DumpRawTokens: 4095 case frontend::DumpTokens: 4096 case frontend::InitOnly: 4097 case frontend::PrintPreamble: 4098 case frontend::PrintPreprocessedInput: 4099 case frontend::RewriteMacros: 4100 case frontend::RunPreprocessorOnly: 4101 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4102 return true; 4103 } 4104 llvm_unreachable("invalid frontend action"); 4105 } 4106 4107 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4108 ArgumentConsumer Consumer, 4109 const LangOptions &LangOpts, 4110 const FrontendOptions &FrontendOpts, 4111 const CodeGenOptions &CodeGenOpts) { 4112 PreprocessorOptions *PreprocessorOpts = &Opts; 4113 4114 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4115 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4116 #include "clang/Driver/Options.inc" 4117 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4118 4119 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4120 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4121 4122 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4123 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4124 4125 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4126 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4127 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4128 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4129 4130 for (const auto &M : Opts.Macros) { 4131 // Don't generate __CET__ macro definitions. They are implied by the 4132 // -fcf-protection option that is generated elsewhere. 4133 if (M.first == "__CET__=1" && !M.second && 4134 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4135 continue; 4136 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4137 !CodeGenOpts.CFProtectionBranch) 4138 continue; 4139 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4140 CodeGenOpts.CFProtectionBranch) 4141 continue; 4142 4143 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4144 } 4145 4146 for (const auto &I : Opts.Includes) { 4147 // Don't generate OpenCL includes. They are implied by other flags that are 4148 // generated elsewhere. 4149 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4150 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4151 I == "opencl-c.h")) 4152 continue; 4153 // Don't generate HLSL includes. They are implied by other flags that are 4154 // generated elsewhere. 4155 if (LangOpts.HLSL && I == "hlsl.h") 4156 continue; 4157 4158 GenerateArg(Consumer, OPT_include, I); 4159 } 4160 4161 for (const auto &CI : Opts.ChainedIncludes) 4162 GenerateArg(Consumer, OPT_chain_include, CI); 4163 4164 for (const auto &RF : Opts.RemappedFiles) 4165 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4166 4167 if (Opts.SourceDateEpoch) 4168 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4169 4170 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4171 // generated elsewhere. 4172 } 4173 4174 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4175 DiagnosticsEngine &Diags, 4176 frontend::ActionKind Action, 4177 const FrontendOptions &FrontendOpts) { 4178 unsigned NumErrorsBefore = Diags.getNumErrors(); 4179 4180 PreprocessorOptions *PreprocessorOpts = &Opts; 4181 4182 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4183 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4184 #include "clang/Driver/Options.inc" 4185 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4186 4187 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4188 Args.hasArg(OPT_pch_through_hdrstop_use); 4189 4190 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4191 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4192 4193 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4194 StringRef Value(A->getValue()); 4195 size_t Comma = Value.find(','); 4196 unsigned Bytes = 0; 4197 unsigned EndOfLine = 0; 4198 4199 if (Comma == StringRef::npos || 4200 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4201 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4202 Diags.Report(diag::err_drv_preamble_format); 4203 else { 4204 Opts.PrecompiledPreambleBytes.first = Bytes; 4205 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4206 } 4207 } 4208 4209 // Add the __CET__ macro if a CFProtection option is set. 4210 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4211 StringRef Name = A->getValue(); 4212 if (Name == "branch") 4213 Opts.addMacroDef("__CET__=1"); 4214 else if (Name == "return") 4215 Opts.addMacroDef("__CET__=2"); 4216 else if (Name == "full") 4217 Opts.addMacroDef("__CET__=3"); 4218 } 4219 4220 // Add macros from the command line. 4221 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4222 if (A->getOption().matches(OPT_D)) 4223 Opts.addMacroDef(A->getValue()); 4224 else 4225 Opts.addMacroUndef(A->getValue()); 4226 } 4227 4228 // Add the ordered list of -includes. 4229 for (const auto *A : Args.filtered(OPT_include)) 4230 Opts.Includes.emplace_back(A->getValue()); 4231 4232 for (const auto *A : Args.filtered(OPT_chain_include)) 4233 Opts.ChainedIncludes.emplace_back(A->getValue()); 4234 4235 for (const auto *A : Args.filtered(OPT_remap_file)) { 4236 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4237 4238 if (Split.second.empty()) { 4239 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4240 continue; 4241 } 4242 4243 Opts.addRemappedFile(Split.first, Split.second); 4244 } 4245 4246 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4247 StringRef Epoch = A->getValue(); 4248 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4249 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4250 // 9999-12-31T23:59:59Z) as the upper bound. 4251 const uint64_t MaxTimestamp = 4252 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4253 uint64_t V; 4254 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4255 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4256 << Epoch << MaxTimestamp; 4257 } else { 4258 Opts.SourceDateEpoch = V; 4259 } 4260 } 4261 4262 // Always avoid lexing editor placeholders when we're just running the 4263 // preprocessor as we never want to emit the 4264 // "editor placeholder in source file" error in PP only mode. 4265 if (isStrictlyPreprocessorAction(Action)) 4266 Opts.LexEditorPlaceholders = false; 4267 4268 return Diags.getNumErrors() == NumErrorsBefore; 4269 } 4270 4271 static void 4272 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4273 ArgumentConsumer Consumer, 4274 frontend::ActionKind Action) { 4275 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4276 4277 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4278 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4279 #include "clang/Driver/Options.inc" 4280 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4281 4282 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4283 if (Generate_dM) 4284 GenerateArg(Consumer, OPT_dM); 4285 if (!Generate_dM && Opts.ShowMacros) 4286 GenerateArg(Consumer, OPT_dD); 4287 if (Opts.DirectivesOnly) 4288 GenerateArg(Consumer, OPT_fdirectives_only); 4289 } 4290 4291 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4292 ArgList &Args, DiagnosticsEngine &Diags, 4293 frontend::ActionKind Action) { 4294 unsigned NumErrorsBefore = Diags.getNumErrors(); 4295 4296 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4297 4298 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4299 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4300 #include "clang/Driver/Options.inc" 4301 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4302 4303 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4304 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4305 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4306 4307 return Diags.getNumErrors() == NumErrorsBefore; 4308 } 4309 4310 static void GenerateTargetArgs(const TargetOptions &Opts, 4311 ArgumentConsumer Consumer) { 4312 const TargetOptions *TargetOpts = &Opts; 4313 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4314 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4315 #include "clang/Driver/Options.inc" 4316 #undef TARGET_OPTION_WITH_MARSHALLING 4317 4318 if (!Opts.SDKVersion.empty()) 4319 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4320 Opts.SDKVersion.getAsString()); 4321 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4322 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4323 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4324 } 4325 4326 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4327 DiagnosticsEngine &Diags) { 4328 unsigned NumErrorsBefore = Diags.getNumErrors(); 4329 4330 TargetOptions *TargetOpts = &Opts; 4331 4332 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4333 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4334 #include "clang/Driver/Options.inc" 4335 #undef TARGET_OPTION_WITH_MARSHALLING 4336 4337 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4338 llvm::VersionTuple Version; 4339 if (Version.tryParse(A->getValue())) 4340 Diags.Report(diag::err_drv_invalid_value) 4341 << A->getAsString(Args) << A->getValue(); 4342 else 4343 Opts.SDKVersion = Version; 4344 } 4345 if (Arg *A = 4346 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4347 llvm::VersionTuple Version; 4348 if (Version.tryParse(A->getValue())) 4349 Diags.Report(diag::err_drv_invalid_value) 4350 << A->getAsString(Args) << A->getValue(); 4351 else 4352 Opts.DarwinTargetVariantSDKVersion = Version; 4353 } 4354 4355 return Diags.getNumErrors() == NumErrorsBefore; 4356 } 4357 4358 bool CompilerInvocation::CreateFromArgsImpl( 4359 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4360 DiagnosticsEngine &Diags, const char *Argv0) { 4361 unsigned NumErrorsBefore = Diags.getNumErrors(); 4362 4363 // Parse the arguments. 4364 const OptTable &Opts = getDriverOptTable(); 4365 const unsigned IncludedFlagsBitmask = options::CC1Option; 4366 unsigned MissingArgIndex, MissingArgCount; 4367 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4368 MissingArgCount, IncludedFlagsBitmask); 4369 LangOptions &LangOpts = *Res.getLangOpts(); 4370 4371 // Check for missing argument error. 4372 if (MissingArgCount) 4373 Diags.Report(diag::err_drv_missing_argument) 4374 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4375 4376 // Issue errors on unknown arguments. 4377 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4378 auto ArgString = A->getAsString(Args); 4379 std::string Nearest; 4380 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4381 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4382 else 4383 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4384 << ArgString << Nearest; 4385 } 4386 4387 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4388 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4389 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4390 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4391 /*DefaultDiagColor=*/false); 4392 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4393 // FIXME: We shouldn't have to pass the DashX option around here 4394 InputKind DashX = Res.getFrontendOpts().DashX; 4395 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4396 llvm::Triple T(Res.getTargetOpts().Triple); 4397 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4398 Res.getFileSystemOpts().WorkingDir); 4399 4400 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4401 Diags); 4402 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4403 LangOpts.ObjCExceptions = 1; 4404 4405 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4406 if (Warning == "misexpect" && 4407 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4408 Res.getCodeGenOpts().MisExpect = true; 4409 } 4410 } 4411 4412 if (LangOpts.CUDA) { 4413 // During CUDA device-side compilation, the aux triple is the 4414 // triple used for host compilation. 4415 if (LangOpts.CUDAIsDevice) 4416 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4417 } 4418 4419 // Set the triple of the host for OpenMP device compile. 4420 if (LangOpts.OpenMPIsTargetDevice) 4421 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4422 4423 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4424 Res.getFrontendOpts().OutputFile, LangOpts); 4425 4426 // FIXME: Override value name discarding when asan or msan is used because the 4427 // backend passes depend on the name of the alloca in order to print out 4428 // names. 4429 Res.getCodeGenOpts().DiscardValueNames &= 4430 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4431 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4432 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4433 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4434 4435 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4436 Res.getFrontendOpts().ProgramAction, 4437 Res.getFrontendOpts()); 4438 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4439 Res.getFrontendOpts().ProgramAction); 4440 4441 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4442 Res.getFrontendOpts().ProgramAction, 4443 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4444 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4445 Res.getDependencyOutputOpts().Targets.empty()) 4446 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4447 4448 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4449 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4450 !Res.getLangOpts()->Sanitize.empty()) { 4451 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4452 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4453 } 4454 4455 // Store the command-line for using in the CodeView backend. 4456 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4457 Res.getCodeGenOpts().Argv0 = Argv0; 4458 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4459 } 4460 4461 // Set PGOOptions. Need to create a temporary VFS to read the profile 4462 // to determine the PGO type. 4463 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4464 auto FS = 4465 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4466 Diags, llvm::vfs::getRealFileSystem()); 4467 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4468 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4469 Diags); 4470 } 4471 4472 FixupInvocation(Res, Diags, Args, DashX); 4473 4474 return Diags.getNumErrors() == NumErrorsBefore; 4475 } 4476 4477 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4478 ArrayRef<const char *> CommandLineArgs, 4479 DiagnosticsEngine &Diags, 4480 const char *Argv0) { 4481 CompilerInvocation DummyInvocation; 4482 4483 return RoundTrip( 4484 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4485 DiagnosticsEngine &Diags, const char *Argv0) { 4486 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4487 }, 4488 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4489 StringAllocator SA) { 4490 Args.push_back("-cc1"); 4491 Invocation.generateCC1CommandLine(Args, SA); 4492 }, 4493 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4494 } 4495 4496 std::string CompilerInvocation::getModuleHash() const { 4497 // FIXME: Consider using SHA1 instead of MD5. 4498 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4499 4500 // Note: For QoI reasons, the things we use as a hash here should all be 4501 // dumped via the -module-info flag. 4502 4503 // Start the signature with the compiler version. 4504 HBuilder.add(getClangFullRepositoryVersion()); 4505 4506 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4507 // and getClangFullRepositoryVersion() doesn't include git revision. 4508 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4509 4510 // Extend the signature with the language options 4511 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4512 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4513 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4514 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4515 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4516 #include "clang/Basic/LangOptions.def" 4517 4518 HBuilder.addRange(LangOpts->ModuleFeatures); 4519 4520 HBuilder.add(LangOpts->ObjCRuntime); 4521 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4522 4523 // Extend the signature with the target options. 4524 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4525 TargetOpts->ABI); 4526 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4527 4528 // Extend the signature with preprocessor options. 4529 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4530 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4531 4532 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4533 for (const auto &Macro : getPreprocessorOpts().Macros) { 4534 // If we're supposed to ignore this macro for the purposes of modules, 4535 // don't put it into the hash. 4536 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4537 // Check whether we're ignoring this macro. 4538 StringRef MacroDef = Macro.first; 4539 if (hsOpts.ModulesIgnoreMacros.count( 4540 llvm::CachedHashString(MacroDef.split('=').first))) 4541 continue; 4542 } 4543 4544 HBuilder.add(Macro); 4545 } 4546 4547 // Extend the signature with the sysroot and other header search options. 4548 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4549 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4550 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4551 hsOpts.ModulesValidateDiagnosticOptions); 4552 HBuilder.add(hsOpts.ResourceDir); 4553 4554 if (hsOpts.ModulesStrictContextHash) { 4555 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4556 HBuilder.addRange(hsOpts.UserEntries); 4557 4558 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4559 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4560 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4561 HBuilder.add(diagOpts.get##Name()); 4562 #include "clang/Basic/DiagnosticOptions.def" 4563 #undef DIAGOPT 4564 #undef ENUM_DIAGOPT 4565 } 4566 4567 // Extend the signature with the user build path. 4568 HBuilder.add(hsOpts.ModuleUserBuildPath); 4569 4570 // Extend the signature with the module file extensions. 4571 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4572 ext->hashExtension(HBuilder); 4573 4574 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4575 // affects the debug info in the PCM. 4576 if (getCodeGenOpts().DebugTypeExtRefs) 4577 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4578 4579 // Extend the signature with the enabled sanitizers, if at least one is 4580 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4581 SanitizerSet SanHash = LangOpts->Sanitize; 4582 SanHash.clear(getPPTransparentSanitizers()); 4583 if (!SanHash.empty()) 4584 HBuilder.add(SanHash.Mask); 4585 4586 llvm::MD5::MD5Result Result; 4587 HBuilder.getHasher().final(Result); 4588 uint64_t Hash = Result.high() ^ Result.low(); 4589 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4590 } 4591 4592 void CompilerInvocation::generateCC1CommandLine( 4593 ArgumentConsumer Consumer) const { 4594 llvm::Triple T(TargetOpts->Triple); 4595 4596 GenerateFileSystemArgs(FileSystemOpts, Consumer); 4597 GenerateMigratorArgs(MigratorOpts, Consumer); 4598 GenerateAnalyzerArgs(*AnalyzerOpts, Consumer); 4599 GenerateDiagnosticArgs(*DiagnosticOpts, Consumer, false); 4600 GenerateFrontendArgs(FrontendOpts, Consumer, LangOpts->IsHeaderFile); 4601 GenerateTargetArgs(*TargetOpts, Consumer); 4602 GenerateHeaderSearchArgs(*HeaderSearchOpts, Consumer); 4603 GenerateLangArgs(*LangOpts, Consumer, T, FrontendOpts.DashX); 4604 GenerateCodeGenArgs(CodeGenOpts, Consumer, T, FrontendOpts.OutputFile, 4605 &*LangOpts); 4606 GeneratePreprocessorArgs(*PreprocessorOpts, Consumer, *LangOpts, FrontendOpts, 4607 CodeGenOpts); 4608 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Consumer, 4609 FrontendOpts.ProgramAction); 4610 GenerateDependencyOutputArgs(DependencyOutputOpts, Consumer); 4611 } 4612 4613 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4614 std::vector<std::string> Args{"-cc1"}; 4615 generateCC1CommandLine( 4616 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 4617 return Args; 4618 } 4619 4620 void CompilerInvocation::resetNonModularOptions() { 4621 getLangOpts()->resetNonModularOptions(); 4622 getPreprocessorOpts().resetNonModularOptions(); 4623 } 4624 4625 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4626 getLangOpts()->ImplicitModules = false; 4627 getHeaderSearchOpts().ImplicitModuleMaps = false; 4628 getHeaderSearchOpts().ModuleCachePath.clear(); 4629 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4630 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4631 // The specific values we canonicalize to for pruning don't affect behaviour, 4632 /// so use the default values so they may be dropped from the command-line. 4633 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4634 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 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 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4649 Diags, std::move(BaseFS)); 4650 } 4651 4652 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4653 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4654 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4655 if (VFSOverlayFiles.empty()) 4656 return BaseFS; 4657 4658 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4659 // earlier vfs files are on the bottom 4660 for (const auto &File : VFSOverlayFiles) { 4661 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4662 Result->getBufferForFile(File); 4663 if (!Buffer) { 4664 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4665 continue; 4666 } 4667 4668 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4669 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4670 /*DiagContext*/ nullptr, Result); 4671 if (!FS) { 4672 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4673 continue; 4674 } 4675 4676 Result = FS; 4677 } 4678 return Result; 4679 } 4680