1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <ctime> 98 #include <fstream> 99 #include <limits> 100 #include <memory> 101 #include <optional> 102 #include <string> 103 #include <tuple> 104 #include <type_traits> 105 #include <utility> 106 #include <vector> 107 108 using namespace clang; 109 using namespace driver; 110 using namespace options; 111 using namespace llvm::opt; 112 113 //===----------------------------------------------------------------------===// 114 // Helpers. 115 //===----------------------------------------------------------------------===// 116 117 // Parse misexpect tolerance argument value. 118 // Valid option values are integers in the range [0, 100) 119 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 120 uint32_t Val; 121 if (Arg.getAsInteger(10, Val)) 122 return llvm::createStringError(llvm::inconvertibleErrorCode(), 123 "Not an integer: %s", Arg.data()); 124 return Val; 125 } 126 127 //===----------------------------------------------------------------------===// 128 // Initialization. 129 //===----------------------------------------------------------------------===// 130 131 CompilerInvocationRefBase::CompilerInvocationRefBase() 132 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 133 DiagnosticOpts(new DiagnosticOptions()), 134 HeaderSearchOpts(new HeaderSearchOptions()), 135 PreprocessorOpts(new PreprocessorOptions()), 136 AnalyzerOpts(new AnalyzerOptions()) {} 137 138 CompilerInvocationRefBase::CompilerInvocationRefBase( 139 const CompilerInvocationRefBase &X) 140 : LangOpts(new LangOptions(*X.getLangOpts())), 141 TargetOpts(new TargetOptions(X.getTargetOpts())), 142 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 143 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 144 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 145 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 146 147 CompilerInvocationRefBase::CompilerInvocationRefBase( 148 CompilerInvocationRefBase &&X) = default; 149 150 CompilerInvocationRefBase & 151 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 152 LangOpts.swap(X.LangOpts); 153 TargetOpts.swap(X.TargetOpts); 154 DiagnosticOpts.swap(X.DiagnosticOpts); 155 HeaderSearchOpts.swap(X.HeaderSearchOpts); 156 PreprocessorOpts.swap(X.PreprocessorOpts); 157 AnalyzerOpts.swap(X.AnalyzerOpts); 158 return *this; 159 } 160 161 CompilerInvocationRefBase & 162 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 163 164 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 165 166 //===----------------------------------------------------------------------===// 167 // Normalizers 168 //===----------------------------------------------------------------------===// 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(SmallVectorImpl<const char *> &Args, 197 const char *Spelling, 198 CompilerInvocation::StringAllocator, 199 Option::OptionClass, unsigned, /*T*/...) { 200 Args.push_back(Spelling); 201 } 202 203 template <typename T> static constexpr bool is_uint64_t_convertible() { 204 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 205 } 206 207 template <typename T, 208 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 209 static auto makeFlagToValueNormalizer(T Value) { 210 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 211 DiagnosticsEngine &) -> std::optional<T> { 212 if (Args.hasArg(Opt)) 213 return Value; 214 return std::nullopt; 215 }; 216 } 217 218 template <typename T, 219 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 220 static auto makeFlagToValueNormalizer(T Value) { 221 return makeFlagToValueNormalizer(uint64_t(Value)); 222 } 223 224 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 225 OptSpecifier OtherOpt) { 226 return [Value, OtherValue, 227 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 228 DiagnosticsEngine &) -> std::optional<bool> { 229 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 230 return A->getOption().matches(Opt) ? Value : OtherValue; 231 } 232 return std::nullopt; 233 }; 234 } 235 236 static auto makeBooleanOptionDenormalizer(bool Value) { 237 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 238 CompilerInvocation::StringAllocator, Option::OptionClass, 239 unsigned, bool KeyPath) { 240 if (KeyPath == Value) 241 Args.push_back(Spelling); 242 }; 243 } 244 245 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 246 const char *Spelling, 247 CompilerInvocation::StringAllocator SA, 248 Option::OptionClass OptClass, unsigned, 249 const Twine &Value) { 250 switch (OptClass) { 251 case Option::SeparateClass: 252 case Option::JoinedOrSeparateClass: 253 case Option::JoinedAndSeparateClass: 254 Args.push_back(Spelling); 255 Args.push_back(SA(Value)); 256 break; 257 case Option::JoinedClass: 258 case Option::CommaJoinedClass: 259 Args.push_back(SA(Twine(Spelling) + Value)); 260 break; 261 default: 262 llvm_unreachable("Cannot denormalize an option with option class " 263 "incompatible with string denormalization."); 264 } 265 } 266 267 template <typename T> 268 static void 269 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 270 CompilerInvocation::StringAllocator SA, 271 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 272 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 273 } 274 275 static std::optional<SimpleEnumValue> 276 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 277 for (int I = 0, E = Table.Size; I != E; ++I) 278 if (Name == Table.Table[I].Name) 279 return Table.Table[I]; 280 281 return std::nullopt; 282 } 283 284 static std::optional<SimpleEnumValue> 285 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 286 for (int I = 0, E = Table.Size; I != E; ++I) 287 if (Value == Table.Table[I].Value) 288 return Table.Table[I]; 289 290 return std::nullopt; 291 } 292 293 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 294 unsigned TableIndex, 295 const ArgList &Args, 296 DiagnosticsEngine &Diags) { 297 assert(TableIndex < SimpleEnumValueTablesSize); 298 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 299 300 auto *Arg = Args.getLastArg(Opt); 301 if (!Arg) 302 return std::nullopt; 303 304 StringRef ArgValue = Arg->getValue(); 305 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 306 return MaybeEnumVal->Value; 307 308 Diags.Report(diag::err_drv_invalid_value) 309 << Arg->getAsString(Args) << ArgValue; 310 return std::nullopt; 311 } 312 313 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 314 const char *Spelling, 315 CompilerInvocation::StringAllocator SA, 316 Option::OptionClass OptClass, 317 unsigned TableIndex, unsigned Value) { 318 assert(TableIndex < SimpleEnumValueTablesSize); 319 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 320 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 321 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 322 MaybeEnumVal->Name); 323 } else { 324 llvm_unreachable("The simple enum value was not correctly defined in " 325 "the tablegen option description"); 326 } 327 } 328 329 template <typename T> 330 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 331 const char *Spelling, 332 CompilerInvocation::StringAllocator SA, 333 Option::OptionClass OptClass, 334 unsigned TableIndex, T Value) { 335 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 336 static_cast<unsigned>(Value)); 337 } 338 339 static std::optional<std::string> normalizeString(OptSpecifier Opt, 340 int TableIndex, 341 const ArgList &Args, 342 DiagnosticsEngine &Diags) { 343 auto *Arg = Args.getLastArg(Opt); 344 if (!Arg) 345 return std::nullopt; 346 return std::string(Arg->getValue()); 347 } 348 349 template <typename IntTy> 350 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 351 const ArgList &Args, 352 DiagnosticsEngine &Diags) { 353 auto *Arg = Args.getLastArg(Opt); 354 if (!Arg) 355 return std::nullopt; 356 IntTy Res; 357 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 358 Diags.Report(diag::err_drv_invalid_int_value) 359 << Arg->getAsString(Args) << Arg->getValue(); 360 return std::nullopt; 361 } 362 return Res; 363 } 364 365 static std::optional<std::vector<std::string>> 366 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 367 DiagnosticsEngine &) { 368 return Args.getAllArgValues(Opt); 369 } 370 371 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 372 const char *Spelling, 373 CompilerInvocation::StringAllocator SA, 374 Option::OptionClass OptClass, 375 unsigned TableIndex, 376 const std::vector<std::string> &Values) { 377 switch (OptClass) { 378 case Option::CommaJoinedClass: { 379 std::string CommaJoinedValue; 380 if (!Values.empty()) { 381 CommaJoinedValue.append(Values.front()); 382 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 383 CommaJoinedValue.append(","); 384 CommaJoinedValue.append(Value); 385 } 386 } 387 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 388 TableIndex, CommaJoinedValue); 389 break; 390 } 391 case Option::JoinedClass: 392 case Option::SeparateClass: 393 case Option::JoinedOrSeparateClass: 394 for (const std::string &Value : Values) 395 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 396 break; 397 default: 398 llvm_unreachable("Cannot denormalize an option with option class " 399 "incompatible with string vector denormalization."); 400 } 401 } 402 403 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 404 int TableIndex, 405 const ArgList &Args, 406 DiagnosticsEngine &Diags) { 407 auto *Arg = Args.getLastArg(Opt); 408 if (!Arg) 409 return std::nullopt; 410 return llvm::Triple::normalize(Arg->getValue()); 411 } 412 413 template <typename T, typename U> 414 static T mergeForwardValue(T KeyPath, U Value) { 415 return static_cast<T>(Value); 416 } 417 418 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 419 return KeyPath | Value; 420 } 421 422 template <typename T> static T extractForwardValue(T KeyPath) { 423 return KeyPath; 424 } 425 426 template <typename T, typename U, U Value> 427 static T extractMaskValue(T KeyPath) { 428 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 429 } 430 431 #define PARSE_OPTION_WITH_MARSHALLING( \ 432 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 433 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 434 if ((FLAGS)&options::CC1Option) { \ 435 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 436 if (IMPLIED_CHECK) \ 437 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 438 if (SHOULD_PARSE) \ 439 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 440 KEYPATH = \ 441 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 442 } 443 444 // Capture the extracted value as a lambda argument to avoid potential issues 445 // with lifetime extension of the reference. 446 #define GENERATE_OPTION_WITH_MARSHALLING( \ 447 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 448 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 449 TABLE_INDEX) \ 450 if ((FLAGS)&options::CC1Option) { \ 451 [&](const auto &Extracted) { \ 452 if (ALWAYS_EMIT || \ 453 (Extracted != \ 454 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 455 : (DEFAULT_VALUE)))) \ 456 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 457 TABLE_INDEX, Extracted); \ 458 }(EXTRACTOR(KEYPATH)); \ 459 } 460 461 static StringRef GetInputKindName(InputKind IK); 462 463 static bool FixupInvocation(CompilerInvocation &Invocation, 464 DiagnosticsEngine &Diags, const ArgList &Args, 465 InputKind IK) { 466 unsigned NumErrorsBefore = Diags.getNumErrors(); 467 468 LangOptions &LangOpts = *Invocation.getLangOpts(); 469 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 470 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 471 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 472 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 473 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 474 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 475 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 476 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 477 if (FrontendOpts.ShowStats) 478 CodeGenOpts.ClearASTBeforeBackend = false; 479 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 480 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 481 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 482 LangOpts.CurrentModule = LangOpts.ModuleName; 483 484 llvm::Triple T(TargetOpts.Triple); 485 llvm::Triple::ArchType Arch = T.getArch(); 486 487 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 488 489 if (LangOpts.getExceptionHandling() != 490 LangOptions::ExceptionHandlingKind::None && 491 T.isWindowsMSVCEnvironment()) 492 Diags.Report(diag::err_fe_invalid_exception_model) 493 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 494 495 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 496 Diags.Report(diag::warn_c_kext); 497 498 if (LangOpts.NewAlignOverride && 499 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 500 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 501 Diags.Report(diag::err_fe_invalid_alignment) 502 << A->getAsString(Args) << A->getValue(); 503 LangOpts.NewAlignOverride = 0; 504 } 505 506 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 507 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 508 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 509 << "-fsycl-is-host"; 510 511 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 512 Diags.Report(diag::err_drv_argument_not_allowed_with) 513 << "-fgnu89-inline" << GetInputKindName(IK); 514 515 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 516 Diags.Report(diag::err_drv_argument_not_allowed_with) 517 << "-hlsl-entry" << GetInputKindName(IK); 518 519 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 520 Diags.Report(diag::warn_ignored_hip_only_option) 521 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 522 523 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 524 Diags.Report(diag::warn_ignored_hip_only_option) 525 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 526 527 // When these options are used, the compiler is allowed to apply 528 // optimizations that may affect the final result. For example 529 // (x+y)+z is transformed to x+(y+z) but may not give the same 530 // final result; it's not value safe. 531 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 532 // or NaN. Final result may then differ. An error is issued when the eval 533 // method is set with one of these options. 534 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 535 if (LangOpts.ApproxFunc) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 537 if (LangOpts.AllowFPReassoc) 538 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 539 if (LangOpts.AllowRecip) 540 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 541 } 542 543 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 544 // This option should be deprecated for CL > 1.0 because 545 // this option was added for compatibility with OpenCL 1.0. 546 if (Args.getLastArg(OPT_cl_strict_aliasing) && 547 (LangOpts.getOpenCLCompatibleVersion() > 100)) 548 Diags.Report(diag::warn_option_invalid_ocl_version) 549 << LangOpts.getOpenCLVersionString() 550 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 551 552 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 553 auto DefaultCC = LangOpts.getDefaultCallingConv(); 554 555 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 556 DefaultCC == LangOptions::DCC_StdCall) && 557 Arch != llvm::Triple::x86; 558 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 559 DefaultCC == LangOptions::DCC_RegCall) && 560 !T.isX86(); 561 if (emitError) 562 Diags.Report(diag::err_drv_argument_not_allowed_with) 563 << A->getSpelling() << T.getTriple(); 564 } 565 566 return Diags.getNumErrors() == NumErrorsBefore; 567 } 568 569 //===----------------------------------------------------------------------===// 570 // Deserialization (from args) 571 //===----------------------------------------------------------------------===// 572 573 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 574 DiagnosticsEngine &Diags) { 575 unsigned DefaultOpt = llvm::CodeGenOpt::None; 576 if ((IK.getLanguage() == Language::OpenCL || 577 IK.getLanguage() == Language::OpenCLCXX) && 578 !Args.hasArg(OPT_cl_opt_disable)) 579 DefaultOpt = llvm::CodeGenOpt::Default; 580 581 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 582 if (A->getOption().matches(options::OPT_O0)) 583 return llvm::CodeGenOpt::None; 584 585 if (A->getOption().matches(options::OPT_Ofast)) 586 return llvm::CodeGenOpt::Aggressive; 587 588 assert(A->getOption().matches(options::OPT_O)); 589 590 StringRef S(A->getValue()); 591 if (S == "s" || S == "z") 592 return llvm::CodeGenOpt::Default; 593 594 if (S == "g") 595 return llvm::CodeGenOpt::Less; 596 597 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 598 } 599 600 return DefaultOpt; 601 } 602 603 static unsigned getOptimizationLevelSize(ArgList &Args) { 604 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 605 if (A->getOption().matches(options::OPT_O)) { 606 switch (A->getValue()[0]) { 607 default: 608 return 0; 609 case 's': 610 return 1; 611 case 'z': 612 return 2; 613 } 614 } 615 } 616 return 0; 617 } 618 619 static void GenerateArg(SmallVectorImpl<const char *> &Args, 620 llvm::opt::OptSpecifier OptSpecifier, 621 CompilerInvocation::StringAllocator SA) { 622 Option Opt = getDriverOptTable().getOption(OptSpecifier); 623 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 624 Option::OptionClass::FlagClass, 0); 625 } 626 627 static void GenerateArg(SmallVectorImpl<const char *> &Args, 628 llvm::opt::OptSpecifier OptSpecifier, 629 const Twine &Value, 630 CompilerInvocation::StringAllocator SA) { 631 Option Opt = getDriverOptTable().getOption(OptSpecifier); 632 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 633 Opt.getKind(), 0, Value); 634 } 635 636 // Parse command line arguments into CompilerInvocation. 637 using ParseFn = 638 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 639 DiagnosticsEngine &, const char *)>; 640 641 // Generate command line arguments from CompilerInvocation. 642 using GenerateFn = llvm::function_ref<void( 643 CompilerInvocation &, SmallVectorImpl<const char *> &, 644 CompilerInvocation::StringAllocator)>; 645 646 // May perform round-trip of command line arguments. By default, the round-trip 647 // is enabled in assert builds. This can be overwritten at run-time via the 648 // "-round-trip-args" and "-no-round-trip-args" command line flags. 649 // During round-trip, the command line arguments are parsed into a dummy 650 // instance of CompilerInvocation which is used to generate the command line 651 // arguments again. The real CompilerInvocation instance is then created by 652 // parsing the generated arguments, not the original ones. 653 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 654 CompilerInvocation &RealInvocation, 655 CompilerInvocation &DummyInvocation, 656 ArrayRef<const char *> CommandLineArgs, 657 DiagnosticsEngine &Diags, const char *Argv0) { 658 #ifndef NDEBUG 659 bool DoRoundTripDefault = true; 660 #else 661 bool DoRoundTripDefault = false; 662 #endif 663 664 bool DoRoundTrip = DoRoundTripDefault; 665 for (const auto *Arg : CommandLineArgs) { 666 if (Arg == StringRef("-round-trip-args")) 667 DoRoundTrip = true; 668 if (Arg == StringRef("-no-round-trip-args")) 669 DoRoundTrip = false; 670 } 671 672 // If round-trip was not requested, simply run the parser with the real 673 // invocation diagnostics. 674 if (!DoRoundTrip) 675 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 676 677 // Serializes quoted (and potentially escaped) arguments. 678 auto SerializeArgs = [](ArrayRef<const char *> Args) { 679 std::string Buffer; 680 llvm::raw_string_ostream OS(Buffer); 681 for (const char *Arg : Args) { 682 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 683 OS << ' '; 684 } 685 OS.flush(); 686 return Buffer; 687 }; 688 689 // Setup a dummy DiagnosticsEngine. 690 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 691 DummyDiags.setClient(new TextDiagnosticBuffer()); 692 693 // Run the first parse on the original arguments with the dummy invocation and 694 // diagnostics. 695 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 696 DummyDiags.getNumWarnings() != 0) { 697 // If the first parse did not succeed, it must be user mistake (invalid 698 // command line arguments). We won't be able to generate arguments that 699 // would reproduce the same result. Let's fail again with the real 700 // invocation and diagnostics, so all side-effects of parsing are visible. 701 unsigned NumWarningsBefore = Diags.getNumWarnings(); 702 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 703 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 704 return Success; 705 706 // Parse with original options and diagnostics succeeded even though it 707 // shouldn't have. Something is off. 708 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 709 Diags.Report(diag::note_cc1_round_trip_original) 710 << SerializeArgs(CommandLineArgs); 711 return false; 712 } 713 714 // Setup string allocator. 715 llvm::BumpPtrAllocator Alloc; 716 llvm::StringSaver StringPool(Alloc); 717 auto SA = [&StringPool](const Twine &Arg) { 718 return StringPool.save(Arg).data(); 719 }; 720 721 // Generate arguments from the dummy invocation. If Generate is the 722 // inverse of Parse, the newly generated arguments must have the same 723 // semantics as the original. 724 SmallVector<const char *> GeneratedArgs1; 725 Generate(DummyInvocation, GeneratedArgs1, SA); 726 727 // Run the second parse, now on the generated arguments, and with the real 728 // invocation and diagnostics. The result is what we will end up using for the 729 // rest of compilation, so if Generate is not inverse of Parse, something down 730 // the line will break. 731 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 732 733 // The first parse on original arguments succeeded, but second parse of 734 // generated arguments failed. Something must be wrong with the generator. 735 if (!Success2) { 736 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 737 Diags.Report(diag::note_cc1_round_trip_generated) 738 << 1 << SerializeArgs(GeneratedArgs1); 739 return false; 740 } 741 742 // Generate arguments again, this time from the options we will end up using 743 // for the rest of the compilation. 744 SmallVector<const char *> GeneratedArgs2; 745 Generate(RealInvocation, GeneratedArgs2, SA); 746 747 // Compares two lists of generated arguments. 748 auto Equal = [](const ArrayRef<const char *> A, 749 const ArrayRef<const char *> B) { 750 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 751 [](const char *AElem, const char *BElem) { 752 return StringRef(AElem) == StringRef(BElem); 753 }); 754 }; 755 756 // If we generated different arguments from what we assume are two 757 // semantically equivalent CompilerInvocations, the Generate function may 758 // be non-deterministic. 759 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 760 Diags.Report(diag::err_cc1_round_trip_mismatch); 761 Diags.Report(diag::note_cc1_round_trip_generated) 762 << 1 << SerializeArgs(GeneratedArgs1); 763 Diags.Report(diag::note_cc1_round_trip_generated) 764 << 2 << SerializeArgs(GeneratedArgs2); 765 return false; 766 } 767 768 Diags.Report(diag::remark_cc1_round_trip_generated) 769 << 1 << SerializeArgs(GeneratedArgs1); 770 Diags.Report(diag::remark_cc1_round_trip_generated) 771 << 2 << SerializeArgs(GeneratedArgs2); 772 773 return Success2; 774 } 775 776 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 777 OptSpecifier GroupWithValue, 778 std::vector<std::string> &Diagnostics) { 779 for (auto *A : Args.filtered(Group)) { 780 if (A->getOption().getKind() == Option::FlagClass) { 781 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 782 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 783 Diagnostics.push_back( 784 std::string(A->getOption().getName().drop_front(1))); 785 } else if (A->getOption().matches(GroupWithValue)) { 786 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 787 // group. Add only the group name to the diagnostics. 788 Diagnostics.push_back( 789 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 790 } else { 791 // Otherwise, add its value (for OPT_W_Joined and similar). 792 Diagnostics.push_back(A->getValue()); 793 } 794 } 795 } 796 797 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 798 // it won't verify the input. 799 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 800 DiagnosticsEngine *Diags); 801 802 static void getAllNoBuiltinFuncValues(ArgList &Args, 803 std::vector<std::string> &Funcs) { 804 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 805 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 806 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 807 } 808 809 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 810 SmallVectorImpl<const char *> &Args, 811 CompilerInvocation::StringAllocator SA) { 812 const AnalyzerOptions *AnalyzerOpts = &Opts; 813 814 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 815 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 816 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 817 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 818 MERGER, EXTRACTOR, TABLE_INDEX) \ 819 GENERATE_OPTION_WITH_MARSHALLING( \ 820 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 821 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 822 #include "clang/Driver/Options.inc" 823 #undef ANALYZER_OPTION_WITH_MARSHALLING 824 825 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 826 switch (Opts.AnalysisConstraintsOpt) { 827 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 828 case NAME##Model: \ 829 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 830 break; 831 #include "clang/StaticAnalyzer/Core/Analyses.def" 832 default: 833 llvm_unreachable("Tried to generate unknown analysis constraint."); 834 } 835 } 836 837 if (Opts.AnalysisDiagOpt != PD_HTML) { 838 switch (Opts.AnalysisDiagOpt) { 839 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 840 case PD_##NAME: \ 841 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 842 break; 843 #include "clang/StaticAnalyzer/Core/Analyses.def" 844 default: 845 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 846 } 847 } 848 849 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 850 switch (Opts.AnalysisPurgeOpt) { 851 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 852 case NAME: \ 853 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 854 break; 855 #include "clang/StaticAnalyzer/Core/Analyses.def" 856 default: 857 llvm_unreachable("Tried to generate unknown analysis purge mode."); 858 } 859 } 860 861 if (Opts.InliningMode != NoRedundancy) { 862 switch (Opts.InliningMode) { 863 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 864 case NAME: \ 865 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 866 break; 867 #include "clang/StaticAnalyzer/Core/Analyses.def" 868 default: 869 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 870 } 871 } 872 873 for (const auto &CP : Opts.CheckersAndPackages) { 874 OptSpecifier Opt = 875 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 876 GenerateArg(Args, Opt, CP.first, SA); 877 } 878 879 AnalyzerOptions ConfigOpts; 880 parseAnalyzerConfigs(ConfigOpts, nullptr); 881 882 for (const auto &C : Opts.Config) { 883 // Don't generate anything that came from parseAnalyzerConfigs. It would be 884 // redundant and may not be valid on the command line. 885 auto Entry = ConfigOpts.Config.find(C.getKey()); 886 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 887 continue; 888 889 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 890 } 891 892 // Nothing to generate for FullCompilerInvocation. 893 } 894 895 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 896 DiagnosticsEngine &Diags) { 897 unsigned NumErrorsBefore = Diags.getNumErrors(); 898 899 AnalyzerOptions *AnalyzerOpts = &Opts; 900 901 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 902 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 903 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 904 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 905 MERGER, EXTRACTOR, TABLE_INDEX) \ 906 PARSE_OPTION_WITH_MARSHALLING( \ 907 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 908 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 909 #include "clang/Driver/Options.inc" 910 #undef ANALYZER_OPTION_WITH_MARSHALLING 911 912 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 913 StringRef Name = A->getValue(); 914 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 915 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 916 .Case(CMDFLAG, NAME##Model) 917 #include "clang/StaticAnalyzer/Core/Analyses.def" 918 .Default(NumConstraints); 919 if (Value == NumConstraints) { 920 Diags.Report(diag::err_drv_invalid_value) 921 << A->getAsString(Args) << Name; 922 } else { 923 #ifndef LLVM_WITH_Z3 924 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 925 Diags.Report(diag::err_analyzer_not_built_with_z3); 926 } 927 #endif // LLVM_WITH_Z3 928 Opts.AnalysisConstraintsOpt = Value; 929 } 930 } 931 932 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 933 StringRef Name = A->getValue(); 934 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 935 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 936 .Case(CMDFLAG, PD_##NAME) 937 #include "clang/StaticAnalyzer/Core/Analyses.def" 938 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 939 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 940 Diags.Report(diag::err_drv_invalid_value) 941 << A->getAsString(Args) << Name; 942 } else { 943 Opts.AnalysisDiagOpt = Value; 944 } 945 } 946 947 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 948 StringRef Name = A->getValue(); 949 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 950 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 951 .Case(CMDFLAG, NAME) 952 #include "clang/StaticAnalyzer/Core/Analyses.def" 953 .Default(NumPurgeModes); 954 if (Value == NumPurgeModes) { 955 Diags.Report(diag::err_drv_invalid_value) 956 << A->getAsString(Args) << Name; 957 } else { 958 Opts.AnalysisPurgeOpt = Value; 959 } 960 } 961 962 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 963 StringRef Name = A->getValue(); 964 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 965 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 966 .Case(CMDFLAG, NAME) 967 #include "clang/StaticAnalyzer/Core/Analyses.def" 968 .Default(NumInliningModes); 969 if (Value == NumInliningModes) { 970 Diags.Report(diag::err_drv_invalid_value) 971 << A->getAsString(Args) << Name; 972 } else { 973 Opts.InliningMode = Value; 974 } 975 } 976 977 Opts.CheckersAndPackages.clear(); 978 for (const Arg *A : 979 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 980 A->claim(); 981 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 982 // We can have a list of comma separated checker names, e.g: 983 // '-analyzer-checker=cocoa,unix' 984 StringRef CheckerAndPackageList = A->getValue(); 985 SmallVector<StringRef, 16> CheckersAndPackages; 986 CheckerAndPackageList.split(CheckersAndPackages, ","); 987 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 988 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 989 IsEnabled); 990 } 991 992 // Go through the analyzer configuration options. 993 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 994 995 // We can have a list of comma separated config names, e.g: 996 // '-analyzer-config key1=val1,key2=val2' 997 StringRef configList = A->getValue(); 998 SmallVector<StringRef, 4> configVals; 999 configList.split(configVals, ","); 1000 for (const auto &configVal : configVals) { 1001 StringRef key, val; 1002 std::tie(key, val) = configVal.split("="); 1003 if (val.empty()) { 1004 Diags.Report(SourceLocation(), 1005 diag::err_analyzer_config_no_value) << configVal; 1006 break; 1007 } 1008 if (val.contains('=')) { 1009 Diags.Report(SourceLocation(), 1010 diag::err_analyzer_config_multiple_values) 1011 << configVal; 1012 break; 1013 } 1014 1015 // TODO: Check checker options too, possibly in CheckerRegistry. 1016 // Leave unknown non-checker configs unclaimed. 1017 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1018 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1019 Diags.Report(diag::err_analyzer_config_unknown) << key; 1020 continue; 1021 } 1022 1023 A->claim(); 1024 Opts.Config[key] = std::string(val); 1025 1026 // FIXME: Remove this hunk after clang-17 released. 1027 constexpr auto SingleFAM = 1028 "consider-single-element-arrays-as-flexible-array-members"; 1029 if (key == SingleFAM) { 1030 Diags.Report(diag::warn_analyzer_deprecated_option_with_alternative) 1031 << SingleFAM << "clang-17" 1032 << "-fstrict-flex-arrays=<N>"; 1033 } 1034 } 1035 } 1036 1037 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1038 parseAnalyzerConfigs(Opts, &Diags); 1039 else 1040 parseAnalyzerConfigs(Opts, nullptr); 1041 1042 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1043 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1044 if (i != 0) 1045 os << " "; 1046 os << Args.getArgString(i); 1047 } 1048 os.flush(); 1049 1050 return Diags.getNumErrors() == NumErrorsBefore; 1051 } 1052 1053 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1054 StringRef OptionName, StringRef DefaultVal) { 1055 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1056 } 1057 1058 static void initOption(AnalyzerOptions::ConfigTable &Config, 1059 DiagnosticsEngine *Diags, 1060 StringRef &OptionField, StringRef Name, 1061 StringRef DefaultVal) { 1062 // String options may be known to invalid (e.g. if the expected string is a 1063 // file name, but the file does not exist), those will have to be checked in 1064 // parseConfigs. 1065 OptionField = getStringOption(Config, Name, DefaultVal); 1066 } 1067 1068 static void initOption(AnalyzerOptions::ConfigTable &Config, 1069 DiagnosticsEngine *Diags, 1070 bool &OptionField, StringRef Name, bool DefaultVal) { 1071 auto PossiblyInvalidVal = 1072 llvm::StringSwitch<std::optional<bool>>( 1073 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1074 .Case("true", true) 1075 .Case("false", false) 1076 .Default(std::nullopt); 1077 1078 if (!PossiblyInvalidVal) { 1079 if (Diags) 1080 Diags->Report(diag::err_analyzer_config_invalid_input) 1081 << Name << "a boolean"; 1082 else 1083 OptionField = DefaultVal; 1084 } else 1085 OptionField = *PossiblyInvalidVal; 1086 } 1087 1088 static void initOption(AnalyzerOptions::ConfigTable &Config, 1089 DiagnosticsEngine *Diags, 1090 unsigned &OptionField, StringRef Name, 1091 unsigned DefaultVal) { 1092 1093 OptionField = DefaultVal; 1094 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1095 .getAsInteger(0, OptionField); 1096 if (Diags && HasFailed) 1097 Diags->Report(diag::err_analyzer_config_invalid_input) 1098 << Name << "an unsigned"; 1099 } 1100 1101 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1102 DiagnosticsEngine *Diags) { 1103 // TODO: There's no need to store the entire configtable, it'd be plenty 1104 // enough to store checker options. 1105 1106 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1107 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1108 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1109 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1110 1111 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1112 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1113 1114 #define ANALYZER_OPTION(...) 1115 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1116 SHALLOW_VAL, DEEP_VAL) \ 1117 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1118 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1119 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1120 1121 // At this point, AnalyzerOptions is configured. Let's validate some options. 1122 1123 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1124 // The current approach only validates the registered checkers which does not 1125 // contain the runtime enabled checkers and optimally we would validate both. 1126 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1127 std::vector<StringRef> Checkers = 1128 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1129 std::vector<StringRef> Packages = 1130 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1131 1132 SmallVector<StringRef, 16> CheckersAndPackages; 1133 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1134 1135 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1136 if (Diags) { 1137 bool IsChecker = CheckerOrPackage.contains('.'); 1138 bool IsValidName = IsChecker 1139 ? llvm::is_contained(Checkers, CheckerOrPackage) 1140 : llvm::is_contained(Packages, CheckerOrPackage); 1141 1142 if (!IsValidName) 1143 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1144 << CheckerOrPackage; 1145 } 1146 1147 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1148 } 1149 } 1150 1151 if (!Diags) 1152 return; 1153 1154 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1155 Diags->Report(diag::err_analyzer_config_invalid_input) 1156 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1157 1158 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1159 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1160 << "a filename"; 1161 1162 if (!AnOpts.ModelPath.empty() && 1163 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1164 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1165 << "a filename"; 1166 } 1167 1168 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1169 static void 1170 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1171 CompilerInvocation::StringAllocator SA, 1172 OptSpecifier OptEQ, StringRef Name, 1173 const CodeGenOptions::OptRemark &Remark) { 1174 if (Remark.hasValidPattern()) { 1175 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1176 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1177 GenerateArg(Args, OPT_R_Joined, Name, SA); 1178 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1179 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1180 } 1181 } 1182 1183 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1184 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1185 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1186 static CodeGenOptions::OptRemark 1187 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1188 OptSpecifier OptEQ, StringRef Name) { 1189 CodeGenOptions::OptRemark Result; 1190 1191 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1192 StringRef Pattern) { 1193 Result.Pattern = Pattern.str(); 1194 1195 std::string RegexError; 1196 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1197 if (!Result.Regex->isValid(RegexError)) { 1198 Diags.Report(diag::err_drv_optimization_remark_pattern) 1199 << RegexError << A->getAsString(Args); 1200 return false; 1201 } 1202 1203 return true; 1204 }; 1205 1206 for (Arg *A : Args) { 1207 if (A->getOption().matches(OPT_R_Joined)) { 1208 StringRef Value = A->getValue(); 1209 1210 if (Value == Name) 1211 Result.Kind = CodeGenOptions::RK_Enabled; 1212 else if (Value == "everything") 1213 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1214 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1215 Result.Kind = CodeGenOptions::RK_Disabled; 1216 else if (Value == "no-everything") 1217 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1218 else 1219 continue; 1220 1221 if (Result.Kind == CodeGenOptions::RK_Disabled || 1222 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1223 Result.Pattern = ""; 1224 Result.Regex = nullptr; 1225 } else { 1226 InitializeResultPattern(A, ".*"); 1227 } 1228 } else if (A->getOption().matches(OptEQ)) { 1229 Result.Kind = CodeGenOptions::RK_WithPattern; 1230 if (!InitializeResultPattern(A, A->getValue())) 1231 return CodeGenOptions::OptRemark(); 1232 } 1233 } 1234 1235 return Result; 1236 } 1237 1238 static bool parseDiagnosticLevelMask(StringRef FlagName, 1239 const std::vector<std::string> &Levels, 1240 DiagnosticsEngine &Diags, 1241 DiagnosticLevelMask &M) { 1242 bool Success = true; 1243 for (const auto &Level : Levels) { 1244 DiagnosticLevelMask const PM = 1245 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1246 .Case("note", DiagnosticLevelMask::Note) 1247 .Case("remark", DiagnosticLevelMask::Remark) 1248 .Case("warning", DiagnosticLevelMask::Warning) 1249 .Case("error", DiagnosticLevelMask::Error) 1250 .Default(DiagnosticLevelMask::None); 1251 if (PM == DiagnosticLevelMask::None) { 1252 Success = false; 1253 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1254 } 1255 M = M | PM; 1256 } 1257 return Success; 1258 } 1259 1260 static void parseSanitizerKinds(StringRef FlagName, 1261 const std::vector<std::string> &Sanitizers, 1262 DiagnosticsEngine &Diags, SanitizerSet &S) { 1263 for (const auto &Sanitizer : Sanitizers) { 1264 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1265 if (K == SanitizerMask()) 1266 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1267 else 1268 S.set(K, true); 1269 } 1270 } 1271 1272 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1273 SmallVector<StringRef, 4> Values; 1274 serializeSanitizerSet(S, Values); 1275 return Values; 1276 } 1277 1278 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1279 ArgList &Args, DiagnosticsEngine &D, 1280 XRayInstrSet &S) { 1281 llvm::SmallVector<StringRef, 2> BundleParts; 1282 llvm::SplitString(Bundle, BundleParts, ","); 1283 for (const auto &B : BundleParts) { 1284 auto Mask = parseXRayInstrValue(B); 1285 if (Mask == XRayInstrKind::None) 1286 if (B != "none") 1287 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1288 else 1289 S.Mask = Mask; 1290 else if (Mask == XRayInstrKind::All) 1291 S.Mask = Mask; 1292 else 1293 S.set(Mask, true); 1294 } 1295 } 1296 1297 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1298 llvm::SmallVector<StringRef, 2> BundleParts; 1299 serializeXRayInstrValue(S, BundleParts); 1300 std::string Buffer; 1301 llvm::raw_string_ostream OS(Buffer); 1302 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1303 return Buffer; 1304 } 1305 1306 // Set the profile kind using fprofile-instrument-use-path. 1307 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1308 const Twine &ProfileName, 1309 DiagnosticsEngine &Diags) { 1310 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1311 if (auto E = ReaderOrErr.takeError()) { 1312 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1313 "Error in reading profile %0: %1"); 1314 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1315 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1316 }); 1317 return; 1318 } 1319 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1320 std::move(ReaderOrErr.get()); 1321 // Currently memprof profiles are only added at the IR level. Mark the profile 1322 // type as IR in that case as well and the subsequent matching needs to detect 1323 // which is available (might be one or both). 1324 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1325 if (PGOReader->hasCSIRLevelProfile()) 1326 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1327 else 1328 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1329 } else 1330 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1331 } 1332 1333 void CompilerInvocation::GenerateCodeGenArgs( 1334 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1335 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1336 const LangOptions *LangOpts) { 1337 const CodeGenOptions &CodeGenOpts = Opts; 1338 1339 if (Opts.OptimizationLevel == 0) 1340 GenerateArg(Args, OPT_O0, SA); 1341 else 1342 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1343 1344 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1345 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1346 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1347 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1348 MERGER, EXTRACTOR, TABLE_INDEX) \ 1349 GENERATE_OPTION_WITH_MARSHALLING( \ 1350 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1351 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1352 #include "clang/Driver/Options.inc" 1353 #undef CODEGEN_OPTION_WITH_MARSHALLING 1354 1355 if (Opts.OptimizationLevel > 0) { 1356 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1357 GenerateArg(Args, OPT_finline_functions, SA); 1358 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1359 GenerateArg(Args, OPT_finline_hint_functions, SA); 1360 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1361 GenerateArg(Args, OPT_fno_inline, SA); 1362 } 1363 1364 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1365 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1366 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1367 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1368 1369 std::optional<StringRef> DebugInfoVal; 1370 switch (Opts.DebugInfo) { 1371 case codegenoptions::DebugLineTablesOnly: 1372 DebugInfoVal = "line-tables-only"; 1373 break; 1374 case codegenoptions::DebugDirectivesOnly: 1375 DebugInfoVal = "line-directives-only"; 1376 break; 1377 case codegenoptions::DebugInfoConstructor: 1378 DebugInfoVal = "constructor"; 1379 break; 1380 case codegenoptions::LimitedDebugInfo: 1381 DebugInfoVal = "limited"; 1382 break; 1383 case codegenoptions::FullDebugInfo: 1384 DebugInfoVal = "standalone"; 1385 break; 1386 case codegenoptions::UnusedTypeInfo: 1387 DebugInfoVal = "unused-types"; 1388 break; 1389 case codegenoptions::NoDebugInfo: // default value 1390 DebugInfoVal = std::nullopt; 1391 break; 1392 case codegenoptions::LocTrackingOnly: // implied value 1393 DebugInfoVal = std::nullopt; 1394 break; 1395 } 1396 if (DebugInfoVal) 1397 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1398 1399 for (const auto &Prefix : Opts.DebugPrefixMap) 1400 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1401 Prefix.first + "=" + Prefix.second, SA); 1402 1403 for (const auto &Prefix : Opts.CoveragePrefixMap) 1404 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1405 Prefix.first + "=" + Prefix.second, SA); 1406 1407 if (Opts.NewStructPathTBAA) 1408 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1409 1410 if (Opts.OptimizeSize == 1) 1411 GenerateArg(Args, OPT_O, "s", SA); 1412 else if (Opts.OptimizeSize == 2) 1413 GenerateArg(Args, OPT_O, "z", SA); 1414 1415 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1416 // -ffreestanding. We'll consider that when generating them. 1417 1418 // NoBuiltinFuncs are generated by LangOptions. 1419 1420 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1421 GenerateArg(Args, OPT_funroll_loops, SA); 1422 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1423 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1424 1425 if (!Opts.BinutilsVersion.empty()) 1426 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1427 1428 if (Opts.DebugNameTable == 1429 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1430 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1431 else if (Opts.DebugNameTable == 1432 static_cast<unsigned>( 1433 llvm::DICompileUnit::DebugNameTableKind::Default)) 1434 GenerateArg(Args, OPT_gpubnames, SA); 1435 1436 auto TNK = Opts.getDebugSimpleTemplateNames(); 1437 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1438 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1439 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1440 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1441 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1442 } 1443 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1444 // it or PGOUseInstrumentor. 1445 1446 if (Opts.TimePasses) { 1447 if (Opts.TimePassesPerRun) 1448 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1449 else 1450 GenerateArg(Args, OPT_ftime_report, SA); 1451 } 1452 1453 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1454 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1455 1456 if (Opts.PrepareForThinLTO) 1457 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1458 1459 if (!Opts.ThinLTOIndexFile.empty()) 1460 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1461 1462 if (Opts.SaveTempsFilePrefix == OutputFile) 1463 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1464 1465 StringRef MemProfileBasename("memprof.profraw"); 1466 if (!Opts.MemoryProfileOutput.empty()) { 1467 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1468 GenerateArg(Args, OPT_fmemory_profile, SA); 1469 } else { 1470 size_t ArgLength = 1471 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1472 GenerateArg(Args, OPT_fmemory_profile_EQ, 1473 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1474 } 1475 } 1476 1477 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1478 GenerateArg(Args, OPT_coverage_version_EQ, 1479 StringRef(Opts.CoverageVersion, 4), SA); 1480 1481 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1482 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1483 // won't be generated.) 1484 1485 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1486 std::string InstrBundle = 1487 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1488 if (!InstrBundle.empty()) 1489 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1490 } 1491 1492 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1493 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1494 else if (Opts.CFProtectionReturn) 1495 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1496 else if (Opts.CFProtectionBranch) 1497 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1498 1499 if (Opts.IBTSeal) 1500 GenerateArg(Args, OPT_mibt_seal, SA); 1501 1502 if (Opts.FunctionReturnThunks) 1503 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1504 1505 for (const auto &F : Opts.LinkBitcodeFiles) { 1506 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1507 F.PropagateAttrs && F.Internalize; 1508 GenerateArg(Args, 1509 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1510 F.Filename, SA); 1511 } 1512 1513 GenerateArg( 1514 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1515 1516 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1517 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1518 1519 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1520 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1521 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1522 SA); 1523 1524 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1525 OptSpecifier Opt = 1526 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1527 GenerateArg(Args, Opt, SA); 1528 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1529 OptSpecifier Opt = 1530 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1531 GenerateArg(Args, Opt, SA); 1532 } 1533 1534 if (Opts.EnableAIXExtendedAltivecABI) 1535 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1536 1537 if (!Opts.OptRecordPasses.empty()) 1538 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1539 1540 if (!Opts.OptRecordFormat.empty()) 1541 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1542 1543 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1544 Opts.OptimizationRemark); 1545 1546 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1547 Opts.OptimizationRemarkMissed); 1548 1549 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1550 Opts.OptimizationRemarkAnalysis); 1551 1552 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1553 Opts.DiagnosticsHotnessThreshold 1554 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1555 : "auto", 1556 SA); 1557 1558 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1559 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1560 1561 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1562 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1563 1564 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1565 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1566 1567 if (!Opts.EmitVersionIdentMetadata) 1568 GenerateArg(Args, OPT_Qn, SA); 1569 1570 switch (Opts.FiniteLoops) { 1571 case CodeGenOptions::FiniteLoopsKind::Language: 1572 break; 1573 case CodeGenOptions::FiniteLoopsKind::Always: 1574 GenerateArg(Args, OPT_ffinite_loops, SA); 1575 break; 1576 case CodeGenOptions::FiniteLoopsKind::Never: 1577 GenerateArg(Args, OPT_fno_finite_loops, SA); 1578 break; 1579 } 1580 } 1581 1582 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1583 InputKind IK, 1584 DiagnosticsEngine &Diags, 1585 const llvm::Triple &T, 1586 const std::string &OutputFile, 1587 const LangOptions &LangOptsRef) { 1588 unsigned NumErrorsBefore = Diags.getNumErrors(); 1589 1590 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1591 // TODO: This could be done in Driver 1592 unsigned MaxOptLevel = 3; 1593 if (OptimizationLevel > MaxOptLevel) { 1594 // If the optimization level is not supported, fall back on the default 1595 // optimization 1596 Diags.Report(diag::warn_drv_optimization_value) 1597 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1598 OptimizationLevel = MaxOptLevel; 1599 } 1600 Opts.OptimizationLevel = OptimizationLevel; 1601 1602 // The key paths of codegen options defined in Options.td start with 1603 // "CodeGenOpts.". Let's provide the expected variable name and type. 1604 CodeGenOptions &CodeGenOpts = Opts; 1605 // Some codegen options depend on language options. Let's provide the expected 1606 // variable name and type. 1607 const LangOptions *LangOpts = &LangOptsRef; 1608 1609 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1610 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1611 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1612 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1613 MERGER, EXTRACTOR, TABLE_INDEX) \ 1614 PARSE_OPTION_WITH_MARSHALLING( \ 1615 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1616 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1617 #include "clang/Driver/Options.inc" 1618 #undef CODEGEN_OPTION_WITH_MARSHALLING 1619 1620 // At O0 we want to fully disable inlining outside of cases marked with 1621 // 'alwaysinline' that are required for correctness. 1622 if (Opts.OptimizationLevel == 0) { 1623 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1624 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1625 options::OPT_finline_hint_functions, 1626 options::OPT_fno_inline_functions, 1627 options::OPT_fno_inline)) { 1628 // Explicit inlining flags can disable some or all inlining even at 1629 // optimization levels above zero. 1630 if (A->getOption().matches(options::OPT_finline_functions)) 1631 Opts.setInlining(CodeGenOptions::NormalInlining); 1632 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1633 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1634 else 1635 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1636 } else { 1637 Opts.setInlining(CodeGenOptions::NormalInlining); 1638 } 1639 1640 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1641 // -fdirect-access-external-data. 1642 Opts.DirectAccessExternalData = 1643 Args.hasArg(OPT_fdirect_access_external_data) || 1644 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1645 LangOpts->PICLevel == 0); 1646 1647 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1648 unsigned Val = 1649 llvm::StringSwitch<unsigned>(A->getValue()) 1650 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1651 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1652 .Case("constructor", codegenoptions::DebugInfoConstructor) 1653 .Case("limited", codegenoptions::LimitedDebugInfo) 1654 .Case("standalone", codegenoptions::FullDebugInfo) 1655 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1656 .Default(~0U); 1657 if (Val == ~0U) 1658 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1659 << A->getValue(); 1660 else 1661 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1662 } 1663 1664 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1665 // constructor homing, and vice versa for -fno-use-ctor-homing. 1666 if (const Arg *A = 1667 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1668 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1669 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1670 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1671 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1672 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1673 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1674 } 1675 1676 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1677 auto Split = StringRef(Arg).split('='); 1678 Opts.DebugPrefixMap.insert( 1679 {std::string(Split.first), std::string(Split.second)}); 1680 } 1681 1682 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1683 auto Split = StringRef(Arg).split('='); 1684 Opts.CoveragePrefixMap.insert( 1685 {std::string(Split.first), std::string(Split.second)}); 1686 } 1687 1688 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1689 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1690 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1691 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1692 1693 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1694 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1695 Opts.EmitCallSiteInfo = true; 1696 1697 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1698 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1699 << Opts.DIBugsReportFilePath; 1700 Opts.DIBugsReportFilePath = ""; 1701 } 1702 1703 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1704 Args.hasArg(OPT_new_struct_path_tbaa); 1705 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1706 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1707 if (Opts.SimplifyLibCalls) 1708 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1709 Opts.UnrollLoops = 1710 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1711 (Opts.OptimizationLevel > 1)); 1712 Opts.BinutilsVersion = 1713 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1714 1715 Opts.DebugNameTable = static_cast<unsigned>( 1716 Args.hasArg(OPT_ggnu_pubnames) 1717 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1718 : Args.hasArg(OPT_gpubnames) 1719 ? llvm::DICompileUnit::DebugNameTableKind::Default 1720 : llvm::DICompileUnit::DebugNameTableKind::None); 1721 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1722 StringRef Value = A->getValue(); 1723 if (Value != "simple" && Value != "mangled") 1724 Diags.Report(diag::err_drv_unsupported_option_argument) 1725 << A->getSpelling() << A->getValue(); 1726 Opts.setDebugSimpleTemplateNames( 1727 StringRef(A->getValue()) == "simple" 1728 ? codegenoptions::DebugTemplateNamesKind::Simple 1729 : codegenoptions::DebugTemplateNamesKind::Mangled); 1730 } 1731 1732 if (!Opts.ProfileInstrumentUsePath.empty()) 1733 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath, Diags); 1734 1735 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1736 Opts.TimePasses = true; 1737 1738 // -ftime-report= is only for new pass manager. 1739 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1740 StringRef Val = A->getValue(); 1741 if (Val == "per-pass") 1742 Opts.TimePassesPerRun = false; 1743 else if (Val == "per-pass-run") 1744 Opts.TimePassesPerRun = true; 1745 else 1746 Diags.Report(diag::err_drv_invalid_value) 1747 << A->getAsString(Args) << A->getValue(); 1748 } 1749 } 1750 1751 Opts.PrepareForLTO = false; 1752 Opts.PrepareForThinLTO = false; 1753 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1754 Opts.PrepareForLTO = true; 1755 StringRef S = A->getValue(); 1756 if (S == "thin") 1757 Opts.PrepareForThinLTO = true; 1758 else if (S != "full") 1759 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1760 } 1761 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1762 if (IK.getLanguage() != Language::LLVM_IR) 1763 Diags.Report(diag::err_drv_argument_only_allowed_with) 1764 << A->getAsString(Args) << "-x ir"; 1765 Opts.ThinLTOIndexFile = 1766 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1767 } 1768 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1769 Opts.SaveTempsFilePrefix = 1770 llvm::StringSwitch<std::string>(A->getValue()) 1771 .Case("obj", OutputFile) 1772 .Default(llvm::sys::path::filename(OutputFile).str()); 1773 1774 // The memory profile runtime appends the pid to make this name more unique. 1775 const char *MemProfileBasename = "memprof.profraw"; 1776 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1777 SmallString<128> Path( 1778 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1779 llvm::sys::path::append(Path, MemProfileBasename); 1780 Opts.MemoryProfileOutput = std::string(Path); 1781 } else if (Args.hasArg(OPT_fmemory_profile)) 1782 Opts.MemoryProfileOutput = MemProfileBasename; 1783 1784 memcpy(Opts.CoverageVersion, "408*", 4); 1785 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1786 if (Args.hasArg(OPT_coverage_version_EQ)) { 1787 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1788 if (CoverageVersion.size() != 4) { 1789 Diags.Report(diag::err_drv_invalid_value) 1790 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1791 << CoverageVersion; 1792 } else { 1793 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1794 } 1795 } 1796 } 1797 // FIXME: For backend options that are not yet recorded as function 1798 // attributes in the IR, keep track of them so we can embed them in a 1799 // separate data section and use them when building the bitcode. 1800 for (const auto &A : Args) { 1801 // Do not encode output and input. 1802 if (A->getOption().getID() == options::OPT_o || 1803 A->getOption().getID() == options::OPT_INPUT || 1804 A->getOption().getID() == options::OPT_x || 1805 A->getOption().getID() == options::OPT_fembed_bitcode || 1806 A->getOption().matches(options::OPT_W_Group)) 1807 continue; 1808 ArgStringList ASL; 1809 A->render(Args, ASL); 1810 for (const auto &arg : ASL) { 1811 StringRef ArgStr(arg); 1812 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1813 // using \00 to separate each commandline options. 1814 Opts.CmdArgs.push_back('\0'); 1815 } 1816 } 1817 1818 auto XRayInstrBundles = 1819 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1820 if (XRayInstrBundles.empty()) 1821 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1822 else 1823 for (const auto &A : XRayInstrBundles) 1824 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1825 Diags, Opts.XRayInstrumentationBundle); 1826 1827 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1828 StringRef Name = A->getValue(); 1829 if (Name == "full") { 1830 Opts.CFProtectionReturn = 1; 1831 Opts.CFProtectionBranch = 1; 1832 } else if (Name == "return") 1833 Opts.CFProtectionReturn = 1; 1834 else if (Name == "branch") 1835 Opts.CFProtectionBranch = 1; 1836 else if (Name != "none") 1837 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1838 } 1839 1840 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1841 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1842 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1843 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1844 .Default(llvm::FunctionReturnThunksKind::Invalid); 1845 // SystemZ might want to add support for "expolines." 1846 if (!T.isX86()) 1847 Diags.Report(diag::err_drv_argument_not_allowed_with) 1848 << A->getSpelling() << T.getTriple(); 1849 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1850 Diags.Report(diag::err_drv_invalid_value) 1851 << A->getAsString(Args) << A->getValue(); 1852 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1853 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1854 Diags.Report(diag::err_drv_argument_not_allowed_with) 1855 << A->getAsString(Args) 1856 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1857 else 1858 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1859 } 1860 1861 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1862 Opts.IBTSeal = 1; 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 (!Args.getLastArg(OPT_femulated_tls) && 1879 !Args.getLastArg(OPT_fno_emulated_tls)) { 1880 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1881 } 1882 1883 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1884 if (T.isOSAIX()) { 1885 StringRef Name = A->getValue(); 1886 if (Name != "global-dynamic") 1887 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1888 } 1889 } 1890 1891 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1892 StringRef Val = A->getValue(); 1893 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1894 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1895 if (!Opts.FPDenormalMode.isValid()) 1896 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1897 } 1898 1899 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1900 StringRef Val = A->getValue(); 1901 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1902 if (!Opts.FP32DenormalMode.isValid()) 1903 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1904 } 1905 1906 // X86_32 has -fppc-struct-return and -freg-struct-return. 1907 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1908 if (Arg *A = 1909 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1910 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1911 // TODO: We might want to consider enabling these options on AIX in the 1912 // future. 1913 if (T.isOSAIX()) 1914 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1915 << A->getSpelling() << T.str(); 1916 1917 const Option &O = A->getOption(); 1918 if (O.matches(OPT_fpcc_struct_return) || 1919 O.matches(OPT_maix_struct_return)) { 1920 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1921 } else { 1922 assert(O.matches(OPT_freg_struct_return) || 1923 O.matches(OPT_msvr4_struct_return)); 1924 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1925 } 1926 } 1927 1928 if (Arg *A = 1929 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1930 if (!T.isOSAIX()) 1931 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1932 << A->getSpelling() << T.str(); 1933 1934 const Option &O = A->getOption(); 1935 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1936 } 1937 1938 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1939 if (!T.isOSAIX() || T.isPPC32()) 1940 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1941 << A->getSpelling() << T.str(); 1942 } 1943 1944 bool NeedLocTracking = false; 1945 1946 if (!Opts.OptRecordFile.empty()) 1947 NeedLocTracking = true; 1948 1949 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1950 Opts.OptRecordPasses = A->getValue(); 1951 NeedLocTracking = true; 1952 } 1953 1954 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1955 Opts.OptRecordFormat = A->getValue(); 1956 NeedLocTracking = true; 1957 } 1958 1959 Opts.OptimizationRemark = 1960 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1961 1962 Opts.OptimizationRemarkMissed = 1963 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1964 1965 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1966 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1967 1968 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1969 Opts.OptimizationRemarkMissed.hasValidPattern() || 1970 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1971 1972 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1973 bool UsingProfile = UsingSampleProfile || 1974 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1975 1976 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1977 // An IR file will contain PGO as metadata 1978 IK.getLanguage() != Language::LLVM_IR) 1979 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1980 << "-fdiagnostics-show-hotness"; 1981 1982 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1983 if (auto *arg = 1984 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1985 auto ResultOrErr = 1986 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1987 1988 if (!ResultOrErr) { 1989 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1990 << "-fdiagnostics-hotness-threshold="; 1991 } else { 1992 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1993 if ((!Opts.DiagnosticsHotnessThreshold || 1994 Opts.DiagnosticsHotnessThreshold.value() > 0) && 1995 !UsingProfile) 1996 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1997 << "-fdiagnostics-hotness-threshold="; 1998 } 1999 } 2000 2001 if (auto *arg = 2002 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2003 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2004 2005 if (!ResultOrErr) { 2006 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2007 << "-fdiagnostics-misexpect-tolerance="; 2008 } else { 2009 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2010 if ((!Opts.DiagnosticsMisExpectTolerance || 2011 Opts.DiagnosticsMisExpectTolerance.value() > 0) && 2012 !UsingProfile) 2013 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2014 << "-fdiagnostics-misexpect-tolerance="; 2015 } 2016 } 2017 2018 // If the user requested to use a sample profile for PGO, then the 2019 // backend will need to track source location information so the profile 2020 // can be incorporated into the IR. 2021 if (UsingSampleProfile) 2022 NeedLocTracking = true; 2023 2024 if (!Opts.StackUsageOutput.empty()) 2025 NeedLocTracking = true; 2026 2027 // If the user requested a flag that requires source locations available in 2028 // the backend, make sure that the backend tracks source location information. 2029 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2030 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2031 2032 // Parse -fsanitize-recover= arguments. 2033 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2034 parseSanitizerKinds("-fsanitize-recover=", 2035 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2036 Opts.SanitizeRecover); 2037 parseSanitizerKinds("-fsanitize-trap=", 2038 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2039 Opts.SanitizeTrap); 2040 2041 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2042 2043 if (Args.hasArg(options::OPT_ffinite_loops)) 2044 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2045 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2046 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2047 2048 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2049 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2050 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2051 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2052 2053 return Diags.getNumErrors() == NumErrorsBefore; 2054 } 2055 2056 static void 2057 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2058 SmallVectorImpl<const char *> &Args, 2059 CompilerInvocation::StringAllocator SA) { 2060 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2061 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2062 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2063 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2064 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2065 MERGER, EXTRACTOR, TABLE_INDEX) \ 2066 GENERATE_OPTION_WITH_MARSHALLING( \ 2067 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2068 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2069 #include "clang/Driver/Options.inc" 2070 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2071 2072 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2073 GenerateArg(Args, OPT_show_includes, SA); 2074 2075 for (const auto &Dep : Opts.ExtraDeps) { 2076 switch (Dep.second) { 2077 case EDK_SanitizeIgnorelist: 2078 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2079 continue; 2080 case EDK_ModuleFile: 2081 // Module file arguments are generated from FrontendOptions and 2082 // HeaderSearchOptions. 2083 continue; 2084 case EDK_ProfileList: 2085 // Profile list arguments are generated from LanguageOptions via the 2086 // marshalling infrastructure. 2087 continue; 2088 case EDK_DepFileEntry: 2089 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2090 break; 2091 } 2092 } 2093 } 2094 2095 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2096 ArgList &Args, DiagnosticsEngine &Diags, 2097 frontend::ActionKind Action, 2098 bool ShowLineMarkers) { 2099 unsigned NumErrorsBefore = Diags.getNumErrors(); 2100 2101 DependencyOutputOptions &DependencyOutputOpts = Opts; 2102 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2103 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2104 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2105 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2106 MERGER, EXTRACTOR, TABLE_INDEX) \ 2107 PARSE_OPTION_WITH_MARSHALLING( \ 2108 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2109 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2110 #include "clang/Driver/Options.inc" 2111 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2112 2113 if (Args.hasArg(OPT_show_includes)) { 2114 // Writing both /showIncludes and preprocessor output to stdout 2115 // would produce interleaved output, so use stderr for /showIncludes. 2116 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2117 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2118 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2119 else 2120 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2121 } else { 2122 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2123 } 2124 2125 // Add sanitizer ignorelists as extra dependencies. 2126 // They won't be discovered by the regular preprocessor, so 2127 // we let make / ninja to know about this implicit dependency. 2128 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2129 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2130 StringRef Val = A->getValue(); 2131 if (!Val.contains('=')) 2132 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2133 } 2134 if (Opts.IncludeSystemHeaders) { 2135 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2136 StringRef Val = A->getValue(); 2137 if (!Val.contains('=')) 2138 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2139 } 2140 } 2141 } 2142 2143 // -fprofile-list= dependencies. 2144 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2145 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2146 2147 // Propagate the extra dependencies. 2148 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2149 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2150 2151 // Only the -fmodule-file=<file> form. 2152 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2153 StringRef Val = A->getValue(); 2154 if (!Val.contains('=')) 2155 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2156 } 2157 2158 // Check for invalid combinations of header-include-format 2159 // and header-include-filtering. 2160 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2161 Opts.HeaderIncludeFiltering != HIFIL_None) || 2162 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2163 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2164 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2165 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2166 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2167 2168 return Diags.getNumErrors() == NumErrorsBefore; 2169 } 2170 2171 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2172 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2173 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2174 // Support both clang's -f[no-]color-diagnostics and gcc's 2175 // -f[no-]diagnostics-colors[=never|always|auto]. 2176 enum { 2177 Colors_On, 2178 Colors_Off, 2179 Colors_Auto 2180 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2181 for (auto *A : Args) { 2182 const Option &O = A->getOption(); 2183 if (O.matches(options::OPT_fcolor_diagnostics)) { 2184 ShowColors = Colors_On; 2185 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2186 ShowColors = Colors_Off; 2187 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2188 StringRef Value(A->getValue()); 2189 if (Value == "always") 2190 ShowColors = Colors_On; 2191 else if (Value == "never") 2192 ShowColors = Colors_Off; 2193 else if (Value == "auto") 2194 ShowColors = Colors_Auto; 2195 } 2196 } 2197 return ShowColors == Colors_On || 2198 (ShowColors == Colors_Auto && 2199 llvm::sys::Process::StandardErrHasColors()); 2200 } 2201 2202 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2203 DiagnosticsEngine &Diags) { 2204 bool Success = true; 2205 for (const auto &Prefix : VerifyPrefixes) { 2206 // Every prefix must start with a letter and contain only alphanumeric 2207 // characters, hyphens, and underscores. 2208 auto BadChar = llvm::find_if(Prefix, [](char C) { 2209 return !isAlphanumeric(C) && C != '-' && C != '_'; 2210 }); 2211 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2212 Success = false; 2213 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2214 Diags.Report(diag::note_drv_verify_prefix_spelling); 2215 } 2216 } 2217 return Success; 2218 } 2219 2220 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2221 SmallVectorImpl<const char *> &Args, 2222 CompilerInvocation::StringAllocator SA) { 2223 const FileSystemOptions &FileSystemOpts = Opts; 2224 2225 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2226 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2227 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2228 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2229 MERGER, EXTRACTOR, TABLE_INDEX) \ 2230 GENERATE_OPTION_WITH_MARSHALLING( \ 2231 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2232 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2233 #include "clang/Driver/Options.inc" 2234 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2235 } 2236 2237 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2238 DiagnosticsEngine &Diags) { 2239 unsigned NumErrorsBefore = Diags.getNumErrors(); 2240 2241 FileSystemOptions &FileSystemOpts = Opts; 2242 2243 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2244 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2245 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2246 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2247 MERGER, EXTRACTOR, TABLE_INDEX) \ 2248 PARSE_OPTION_WITH_MARSHALLING( \ 2249 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2250 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2251 #include "clang/Driver/Options.inc" 2252 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2253 2254 return Diags.getNumErrors() == NumErrorsBefore; 2255 } 2256 2257 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2258 SmallVectorImpl<const char *> &Args, 2259 CompilerInvocation::StringAllocator SA) { 2260 const MigratorOptions &MigratorOpts = Opts; 2261 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2262 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2263 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2264 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2265 MERGER, EXTRACTOR, TABLE_INDEX) \ 2266 GENERATE_OPTION_WITH_MARSHALLING( \ 2267 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2268 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2269 #include "clang/Driver/Options.inc" 2270 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2271 } 2272 2273 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2274 DiagnosticsEngine &Diags) { 2275 unsigned NumErrorsBefore = Diags.getNumErrors(); 2276 2277 MigratorOptions &MigratorOpts = Opts; 2278 2279 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2280 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2281 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2282 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2283 MERGER, EXTRACTOR, TABLE_INDEX) \ 2284 PARSE_OPTION_WITH_MARSHALLING( \ 2285 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2286 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2287 #include "clang/Driver/Options.inc" 2288 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2289 2290 return Diags.getNumErrors() == NumErrorsBefore; 2291 } 2292 2293 void CompilerInvocation::GenerateDiagnosticArgs( 2294 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2295 StringAllocator SA, bool DefaultDiagColor) { 2296 const DiagnosticOptions *DiagnosticOpts = &Opts; 2297 #define DIAG_OPTION_WITH_MARSHALLING( \ 2298 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2299 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2300 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2301 MERGER, EXTRACTOR, TABLE_INDEX) \ 2302 GENERATE_OPTION_WITH_MARSHALLING( \ 2303 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2304 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2305 #include "clang/Driver/Options.inc" 2306 #undef DIAG_OPTION_WITH_MARSHALLING 2307 2308 if (!Opts.DiagnosticSerializationFile.empty()) 2309 GenerateArg(Args, OPT_diagnostic_serialized_file, 2310 Opts.DiagnosticSerializationFile, SA); 2311 2312 if (Opts.ShowColors) 2313 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2314 2315 if (Opts.VerifyDiagnostics && 2316 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2317 GenerateArg(Args, OPT_verify, SA); 2318 2319 for (const auto &Prefix : Opts.VerifyPrefixes) 2320 if (Prefix != "expected") 2321 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2322 2323 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2324 if (VIU == DiagnosticLevelMask::None) { 2325 // This is the default, don't generate anything. 2326 } else if (VIU == DiagnosticLevelMask::All) { 2327 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2328 } else { 2329 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2330 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2331 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2332 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2333 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2334 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2335 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2336 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2337 } 2338 2339 for (const auto &Warning : Opts.Warnings) { 2340 // This option is automatically generated from UndefPrefixes. 2341 if (Warning == "undef-prefix") 2342 continue; 2343 Args.push_back(SA(StringRef("-W") + Warning)); 2344 } 2345 2346 for (const auto &Remark : Opts.Remarks) { 2347 // These arguments are generated from OptimizationRemark fields of 2348 // CodeGenOptions. 2349 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2350 "pass-analysis", "no-pass-analysis", 2351 "pass-missed", "no-pass-missed"}; 2352 if (llvm::is_contained(IgnoredRemarks, Remark)) 2353 continue; 2354 2355 Args.push_back(SA(StringRef("-R") + Remark)); 2356 } 2357 } 2358 2359 std::unique_ptr<DiagnosticOptions> 2360 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2361 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2362 unsigned MissingArgIndex, MissingArgCount; 2363 InputArgList Args = getDriverOptTable().ParseArgs( 2364 Argv.slice(1), MissingArgIndex, MissingArgCount); 2365 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2366 // Any errors that would be diagnosed here will also be diagnosed later, 2367 // when the DiagnosticsEngine actually exists. 2368 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2369 return DiagOpts; 2370 } 2371 2372 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2373 DiagnosticsEngine *Diags, 2374 bool DefaultDiagColor) { 2375 std::optional<DiagnosticsEngine> IgnoringDiags; 2376 if (!Diags) { 2377 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2378 new IgnoringDiagConsumer()); 2379 Diags = &*IgnoringDiags; 2380 } 2381 2382 unsigned NumErrorsBefore = Diags->getNumErrors(); 2383 2384 // The key paths of diagnostic options defined in Options.td start with 2385 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2386 DiagnosticOptions *DiagnosticOpts = &Opts; 2387 2388 #define DIAG_OPTION_WITH_MARSHALLING( \ 2389 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2390 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2391 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2392 MERGER, EXTRACTOR, TABLE_INDEX) \ 2393 PARSE_OPTION_WITH_MARSHALLING( \ 2394 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2395 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2396 #include "clang/Driver/Options.inc" 2397 #undef DIAG_OPTION_WITH_MARSHALLING 2398 2399 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2400 2401 if (Arg *A = 2402 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2403 Opts.DiagnosticSerializationFile = A->getValue(); 2404 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2405 2406 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2407 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2408 if (Args.hasArg(OPT_verify)) 2409 Opts.VerifyPrefixes.push_back("expected"); 2410 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2411 // then sort it to prepare for fast lookup using std::binary_search. 2412 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2413 Opts.VerifyDiagnostics = false; 2414 else 2415 llvm::sort(Opts.VerifyPrefixes); 2416 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2417 parseDiagnosticLevelMask( 2418 "-verify-ignore-unexpected=", 2419 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2420 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2421 DiagMask = DiagnosticLevelMask::All; 2422 Opts.setVerifyIgnoreUnexpected(DiagMask); 2423 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2424 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2425 Diags->Report(diag::warn_ignoring_ftabstop_value) 2426 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2427 } 2428 2429 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2430 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2431 2432 return Diags->getNumErrors() == NumErrorsBefore; 2433 } 2434 2435 /// Parse the argument to the -ftest-module-file-extension 2436 /// command-line argument. 2437 /// 2438 /// \returns true on error, false on success. 2439 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2440 std::string &BlockName, 2441 unsigned &MajorVersion, 2442 unsigned &MinorVersion, 2443 bool &Hashed, 2444 std::string &UserInfo) { 2445 SmallVector<StringRef, 5> Args; 2446 Arg.split(Args, ':', 5); 2447 if (Args.size() < 5) 2448 return true; 2449 2450 BlockName = std::string(Args[0]); 2451 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2452 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2453 if (Args[3].getAsInteger(2, Hashed)) return true; 2454 if (Args.size() > 4) 2455 UserInfo = std::string(Args[4]); 2456 return false; 2457 } 2458 2459 /// Return a table that associates command line option specifiers with the 2460 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2461 /// intentionally missing, as this case is handled separately from other 2462 /// frontend options. 2463 static const auto &getFrontendActionTable() { 2464 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2465 {frontend::ASTDeclList, OPT_ast_list}, 2466 2467 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2468 {frontend::ASTDump, OPT_ast_dump_all}, 2469 {frontend::ASTDump, OPT_ast_dump_EQ}, 2470 {frontend::ASTDump, OPT_ast_dump}, 2471 {frontend::ASTDump, OPT_ast_dump_lookups}, 2472 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2473 2474 {frontend::ASTPrint, OPT_ast_print}, 2475 {frontend::ASTView, OPT_ast_view}, 2476 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2477 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2478 {frontend::DumpTokens, OPT_dump_tokens}, 2479 {frontend::EmitAssembly, OPT_S}, 2480 {frontend::EmitBC, OPT_emit_llvm_bc}, 2481 {frontend::EmitHTML, OPT_emit_html}, 2482 {frontend::EmitLLVM, OPT_emit_llvm}, 2483 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2484 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2485 {frontend::EmitObj, OPT_emit_obj}, 2486 {frontend::ExtractAPI, OPT_extract_api}, 2487 2488 {frontend::FixIt, OPT_fixit_EQ}, 2489 {frontend::FixIt, OPT_fixit}, 2490 2491 {frontend::GenerateModule, OPT_emit_module}, 2492 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2493 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2494 {frontend::GeneratePCH, OPT_emit_pch}, 2495 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2496 {frontend::InitOnly, OPT_init_only}, 2497 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2498 {frontend::ModuleFileInfo, OPT_module_file_info}, 2499 {frontend::VerifyPCH, OPT_verify_pch}, 2500 {frontend::PrintPreamble, OPT_print_preamble}, 2501 {frontend::PrintPreprocessedInput, OPT_E}, 2502 {frontend::TemplightDump, OPT_templight_dump}, 2503 {frontend::RewriteMacros, OPT_rewrite_macros}, 2504 {frontend::RewriteObjC, OPT_rewrite_objc}, 2505 {frontend::RewriteTest, OPT_rewrite_test}, 2506 {frontend::RunAnalysis, OPT_analyze}, 2507 {frontend::MigrateSource, OPT_migrate}, 2508 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2509 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2510 OPT_print_dependency_directives_minimized_source}, 2511 }; 2512 2513 return Table; 2514 } 2515 2516 /// Maps command line option to frontend action. 2517 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2518 for (const auto &ActionOpt : getFrontendActionTable()) 2519 if (ActionOpt.second == Opt.getID()) 2520 return ActionOpt.first; 2521 2522 return std::nullopt; 2523 } 2524 2525 /// Maps frontend action to command line option. 2526 static Optional<OptSpecifier> 2527 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2528 for (const auto &ActionOpt : getFrontendActionTable()) 2529 if (ActionOpt.first == ProgramAction) 2530 return OptSpecifier(ActionOpt.second); 2531 2532 return std::nullopt; 2533 } 2534 2535 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2536 SmallVectorImpl<const char *> &Args, 2537 CompilerInvocation::StringAllocator SA, 2538 bool IsHeader) { 2539 const FrontendOptions &FrontendOpts = Opts; 2540 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2541 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2542 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2543 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2544 MERGER, EXTRACTOR, TABLE_INDEX) \ 2545 GENERATE_OPTION_WITH_MARSHALLING( \ 2546 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2547 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2548 #include "clang/Driver/Options.inc" 2549 #undef FRONTEND_OPTION_WITH_MARSHALLING 2550 2551 Optional<OptSpecifier> ProgramActionOpt = 2552 getProgramActionOpt(Opts.ProgramAction); 2553 2554 // Generating a simple flag covers most frontend actions. 2555 std::function<void()> GenerateProgramAction = [&]() { 2556 GenerateArg(Args, *ProgramActionOpt, SA); 2557 }; 2558 2559 if (!ProgramActionOpt) { 2560 // PluginAction is the only program action handled separately. 2561 assert(Opts.ProgramAction == frontend::PluginAction && 2562 "Frontend action without option."); 2563 GenerateProgramAction = [&]() { 2564 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2565 }; 2566 } 2567 2568 // FIXME: Simplify the complex 'AST dump' command line. 2569 if (Opts.ProgramAction == frontend::ASTDump) { 2570 GenerateProgramAction = [&]() { 2571 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2572 // marshalling infrastructure. 2573 2574 if (Opts.ASTDumpFormat != ADOF_Default) { 2575 StringRef Format; 2576 switch (Opts.ASTDumpFormat) { 2577 case ADOF_Default: 2578 llvm_unreachable("Default AST dump format."); 2579 case ADOF_JSON: 2580 Format = "json"; 2581 break; 2582 } 2583 2584 if (Opts.ASTDumpAll) 2585 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2586 if (Opts.ASTDumpDecls) 2587 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2588 } else { 2589 if (Opts.ASTDumpAll) 2590 GenerateArg(Args, OPT_ast_dump_all, SA); 2591 if (Opts.ASTDumpDecls) 2592 GenerateArg(Args, OPT_ast_dump, SA); 2593 } 2594 }; 2595 } 2596 2597 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2598 GenerateProgramAction = [&]() { 2599 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2600 }; 2601 } 2602 2603 GenerateProgramAction(); 2604 2605 for (const auto &PluginArgs : Opts.PluginArgs) { 2606 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2607 const char *Spelling = 2608 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2609 for (const auto &PluginArg : PluginArgs.second) 2610 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2611 } 2612 2613 for (const auto &Ext : Opts.ModuleFileExtensions) 2614 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2615 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2616 2617 if (!Opts.CodeCompletionAt.FileName.empty()) 2618 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2619 SA); 2620 2621 for (const auto &Plugin : Opts.Plugins) 2622 GenerateArg(Args, OPT_load, Plugin, SA); 2623 2624 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2625 2626 for (const auto &ModuleFile : Opts.ModuleFiles) 2627 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2628 2629 if (Opts.AuxTargetCPU) 2630 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2631 2632 if (Opts.AuxTargetFeatures) 2633 for (const auto &Feature : *Opts.AuxTargetFeatures) 2634 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2635 2636 { 2637 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2638 StringRef ModuleMap = 2639 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2640 StringRef HeaderUnit = ""; 2641 switch (Opts.DashX.getHeaderUnitKind()) { 2642 case InputKind::HeaderUnit_None: 2643 break; 2644 case InputKind::HeaderUnit_User: 2645 HeaderUnit = "-user"; 2646 break; 2647 case InputKind::HeaderUnit_System: 2648 HeaderUnit = "-system"; 2649 break; 2650 case InputKind::HeaderUnit_Abs: 2651 HeaderUnit = "-header-unit"; 2652 break; 2653 } 2654 StringRef Header = IsHeader ? "-header" : ""; 2655 2656 StringRef Lang; 2657 switch (Opts.DashX.getLanguage()) { 2658 case Language::C: 2659 Lang = "c"; 2660 break; 2661 case Language::OpenCL: 2662 Lang = "cl"; 2663 break; 2664 case Language::OpenCLCXX: 2665 Lang = "clcpp"; 2666 break; 2667 case Language::CUDA: 2668 Lang = "cuda"; 2669 break; 2670 case Language::HIP: 2671 Lang = "hip"; 2672 break; 2673 case Language::CXX: 2674 Lang = "c++"; 2675 break; 2676 case Language::ObjC: 2677 Lang = "objective-c"; 2678 break; 2679 case Language::ObjCXX: 2680 Lang = "objective-c++"; 2681 break; 2682 case Language::RenderScript: 2683 Lang = "renderscript"; 2684 break; 2685 case Language::Asm: 2686 Lang = "assembler-with-cpp"; 2687 break; 2688 case Language::Unknown: 2689 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2690 "Generating -x argument for unknown language (not precompiled)."); 2691 Lang = "ast"; 2692 break; 2693 case Language::LLVM_IR: 2694 Lang = "ir"; 2695 break; 2696 case Language::HLSL: 2697 Lang = "hlsl"; 2698 break; 2699 } 2700 2701 GenerateArg(Args, OPT_x, 2702 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2703 } 2704 2705 // OPT_INPUT has a unique class, generate it directly. 2706 for (const auto &Input : Opts.Inputs) 2707 Args.push_back(SA(Input.getFile())); 2708 } 2709 2710 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2711 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2712 unsigned NumErrorsBefore = Diags.getNumErrors(); 2713 2714 FrontendOptions &FrontendOpts = Opts; 2715 2716 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2717 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2718 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2719 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2720 MERGER, EXTRACTOR, TABLE_INDEX) \ 2721 PARSE_OPTION_WITH_MARSHALLING( \ 2722 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2723 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2724 #include "clang/Driver/Options.inc" 2725 #undef FRONTEND_OPTION_WITH_MARSHALLING 2726 2727 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2728 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2729 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2730 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2731 assert(ProgramAction && "Option specifier not in Action_Group."); 2732 2733 if (ProgramAction == frontend::ASTDump && 2734 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2735 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2736 .CaseLower("default", ADOF_Default) 2737 .CaseLower("json", ADOF_JSON) 2738 .Default(std::numeric_limits<unsigned>::max()); 2739 2740 if (Val != std::numeric_limits<unsigned>::max()) 2741 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2742 else { 2743 Diags.Report(diag::err_drv_invalid_value) 2744 << A->getAsString(Args) << A->getValue(); 2745 Opts.ASTDumpFormat = ADOF_Default; 2746 } 2747 } 2748 2749 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2750 Opts.FixItSuffix = A->getValue(); 2751 2752 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2753 StringRef ArgStr = 2754 Args.hasArg(OPT_interface_stub_version_EQ) 2755 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2756 : "ifs-v1"; 2757 if (ArgStr == "experimental-yaml-elf-v1" || 2758 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2759 ArgStr == "experimental-tapi-elf-v1") { 2760 std::string ErrorMessage = 2761 "Invalid interface stub format: " + ArgStr.str() + 2762 " is deprecated."; 2763 Diags.Report(diag::err_drv_invalid_value) 2764 << "Must specify a valid interface stub format type, ie: " 2765 "-interface-stub-version=ifs-v1" 2766 << ErrorMessage; 2767 ProgramAction = frontend::ParseSyntaxOnly; 2768 } else if (!ArgStr.startswith("ifs-")) { 2769 std::string ErrorMessage = 2770 "Invalid interface stub format: " + ArgStr.str() + "."; 2771 Diags.Report(diag::err_drv_invalid_value) 2772 << "Must specify a valid interface stub format type, ie: " 2773 "-interface-stub-version=ifs-v1" 2774 << ErrorMessage; 2775 ProgramAction = frontend::ParseSyntaxOnly; 2776 } 2777 } 2778 2779 Opts.ProgramAction = *ProgramAction; 2780 } 2781 2782 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2783 Opts.Plugins.emplace_back(A->getValue(0)); 2784 Opts.ProgramAction = frontend::PluginAction; 2785 Opts.ActionName = A->getValue(); 2786 } 2787 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2788 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2789 2790 for (const std::string &Arg : 2791 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2792 std::string BlockName; 2793 unsigned MajorVersion; 2794 unsigned MinorVersion; 2795 bool Hashed; 2796 std::string UserInfo; 2797 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2798 MinorVersion, Hashed, UserInfo)) { 2799 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2800 2801 continue; 2802 } 2803 2804 // Add the testing module file extension. 2805 Opts.ModuleFileExtensions.push_back( 2806 std::make_shared<TestModuleFileExtension>( 2807 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2808 } 2809 2810 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2811 Opts.CodeCompletionAt = 2812 ParsedSourceLocation::FromString(A->getValue()); 2813 if (Opts.CodeCompletionAt.FileName.empty()) 2814 Diags.Report(diag::err_drv_invalid_value) 2815 << A->getAsString(Args) << A->getValue(); 2816 } 2817 2818 Opts.Plugins = Args.getAllArgValues(OPT_load); 2819 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2820 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2821 // Only the -fmodule-file=<file> form. 2822 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2823 StringRef Val = A->getValue(); 2824 if (!Val.contains('=')) 2825 Opts.ModuleFiles.push_back(std::string(Val)); 2826 } 2827 2828 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2829 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2830 << "-emit-module"; 2831 2832 if (Args.hasArg(OPT_aux_target_cpu)) 2833 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2834 if (Args.hasArg(OPT_aux_target_feature)) 2835 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2836 2837 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2838 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2839 Diags.Report(diag::err_drv_argument_not_allowed_with) 2840 << "ARC migration" << "ObjC migration"; 2841 } 2842 2843 InputKind DashX(Language::Unknown); 2844 if (const Arg *A = Args.getLastArg(OPT_x)) { 2845 StringRef XValue = A->getValue(); 2846 2847 // Parse suffixes: 2848 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2849 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2850 bool Preprocessed = XValue.consume_back("-cpp-output"); 2851 bool ModuleMap = XValue.consume_back("-module-map"); 2852 // Detect and consume the header indicator. 2853 bool IsHeader = 2854 XValue != "precompiled-header" && XValue.consume_back("-header"); 2855 2856 // If we have c++-{user,system}-header, that indicates a header unit input 2857 // likewise, if the user put -fmodule-header together with a header with an 2858 // absolute path (header-unit-header). 2859 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2860 if (IsHeader || Preprocessed) { 2861 if (XValue.consume_back("-header-unit")) 2862 HUK = InputKind::HeaderUnit_Abs; 2863 else if (XValue.consume_back("-system")) 2864 HUK = InputKind::HeaderUnit_System; 2865 else if (XValue.consume_back("-user")) 2866 HUK = InputKind::HeaderUnit_User; 2867 } 2868 2869 // The value set by this processing is an un-preprocessed source which is 2870 // not intended to be a module map or header unit. 2871 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2872 HUK == InputKind::HeaderUnit_None; 2873 2874 // Principal languages. 2875 DashX = llvm::StringSwitch<InputKind>(XValue) 2876 .Case("c", Language::C) 2877 .Case("cl", Language::OpenCL) 2878 .Case("clcpp", Language::OpenCLCXX) 2879 .Case("cuda", Language::CUDA) 2880 .Case("hip", Language::HIP) 2881 .Case("c++", Language::CXX) 2882 .Case("objective-c", Language::ObjC) 2883 .Case("objective-c++", Language::ObjCXX) 2884 .Case("renderscript", Language::RenderScript) 2885 .Case("hlsl", Language::HLSL) 2886 .Default(Language::Unknown); 2887 2888 // "objc[++]-cpp-output" is an acceptable synonym for 2889 // "objective-c[++]-cpp-output". 2890 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2891 HUK == InputKind::HeaderUnit_None) 2892 DashX = llvm::StringSwitch<InputKind>(XValue) 2893 .Case("objc", Language::ObjC) 2894 .Case("objc++", Language::ObjCXX) 2895 .Default(Language::Unknown); 2896 2897 // Some special cases cannot be combined with suffixes. 2898 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2899 HUK == InputKind::HeaderUnit_None) 2900 DashX = llvm::StringSwitch<InputKind>(XValue) 2901 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2902 .Case("assembler-with-cpp", Language::Asm) 2903 .Cases("ast", "pcm", "precompiled-header", 2904 InputKind(Language::Unknown, InputKind::Precompiled)) 2905 .Case("ir", Language::LLVM_IR) 2906 .Default(Language::Unknown); 2907 2908 if (DashX.isUnknown()) 2909 Diags.Report(diag::err_drv_invalid_value) 2910 << A->getAsString(Args) << A->getValue(); 2911 2912 if (Preprocessed) 2913 DashX = DashX.getPreprocessed(); 2914 // A regular header is considered mutually exclusive with a header unit. 2915 if (HUK != InputKind::HeaderUnit_None) { 2916 DashX = DashX.withHeaderUnit(HUK); 2917 IsHeaderFile = true; 2918 } else if (IsHeaderFile) 2919 DashX = DashX.getHeader(); 2920 if (ModuleMap) 2921 DashX = DashX.withFormat(InputKind::ModuleMap); 2922 } 2923 2924 // '-' is the default input if none is given. 2925 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2926 Opts.Inputs.clear(); 2927 if (Inputs.empty()) 2928 Inputs.push_back("-"); 2929 2930 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2931 Inputs.size() > 1) 2932 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2933 2934 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2935 InputKind IK = DashX; 2936 if (IK.isUnknown()) { 2937 IK = FrontendOptions::getInputKindForExtension( 2938 StringRef(Inputs[i]).rsplit('.').second); 2939 // FIXME: Warn on this? 2940 if (IK.isUnknown()) 2941 IK = Language::C; 2942 // FIXME: Remove this hack. 2943 if (i == 0) 2944 DashX = IK; 2945 } 2946 2947 bool IsSystem = false; 2948 2949 // The -emit-module action implicitly takes a module map. 2950 if (Opts.ProgramAction == frontend::GenerateModule && 2951 IK.getFormat() == InputKind::Source) { 2952 IK = IK.withFormat(InputKind::ModuleMap); 2953 IsSystem = Opts.IsSystemModule; 2954 } 2955 2956 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2957 } 2958 2959 Opts.DashX = DashX; 2960 2961 return Diags.getNumErrors() == NumErrorsBefore; 2962 } 2963 2964 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2965 void *MainAddr) { 2966 std::string ClangExecutable = 2967 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2968 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2969 } 2970 2971 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2972 SmallVectorImpl<const char *> &Args, 2973 CompilerInvocation::StringAllocator SA) { 2974 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2975 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2976 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2977 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2978 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2979 MERGER, EXTRACTOR, TABLE_INDEX) \ 2980 GENERATE_OPTION_WITH_MARSHALLING( \ 2981 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2982 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2983 #include "clang/Driver/Options.inc" 2984 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2985 2986 if (Opts.UseLibcxx) 2987 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2988 2989 if (!Opts.ModuleCachePath.empty()) 2990 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2991 2992 for (const auto &File : Opts.PrebuiltModuleFiles) 2993 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2994 2995 for (const auto &Path : Opts.PrebuiltModulePaths) 2996 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2997 2998 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2999 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 3000 3001 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3002 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3003 std::optional<bool> IsFramework, 3004 std::optional<bool> IgnoreSysRoot) { 3005 return llvm::is_contained(Groups, Entry.Group) && 3006 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3007 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3008 }; 3009 3010 auto It = Opts.UserEntries.begin(); 3011 auto End = Opts.UserEntries.end(); 3012 3013 // Add -I..., -F..., and -index-header-map options in order. 3014 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3015 std::nullopt, true); 3016 ++It) { 3017 OptSpecifier Opt = [It, Matches]() { 3018 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3019 return OPT_F; 3020 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3021 return OPT_I; 3022 if (Matches(*It, frontend::Angled, true, true)) 3023 return OPT_F; 3024 if (Matches(*It, frontend::Angled, false, true)) 3025 return OPT_I; 3026 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3027 }(); 3028 3029 if (It->Group == frontend::IndexHeaderMap) 3030 GenerateArg(Args, OPT_index_header_map, SA); 3031 GenerateArg(Args, Opt, It->Path, SA); 3032 }; 3033 3034 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3035 // have already been generated as "-I[xx]yy". If that's the case, their 3036 // position on command line was such that this has no semantic impact on 3037 // include paths. 3038 for (; It < End && 3039 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3040 ++It) { 3041 OptSpecifier Opt = 3042 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3043 GenerateArg(Args, Opt, It->Path, SA); 3044 } 3045 3046 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3047 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3048 // command line was such that this has no semantic impact on include paths. 3049 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3050 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3051 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3052 GenerateArg(Args, OPT_iquote, It->Path, SA); 3053 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3054 ++It) 3055 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3056 It->Path, SA); 3057 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3058 GenerateArg(Args, OPT_iframework, It->Path, SA); 3059 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3060 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3061 3062 // Add the paths for the various language specific isystem flags. 3063 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3064 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3065 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3066 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3067 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3068 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3069 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3070 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3071 3072 // Add the internal paths from a driver that detects standard include paths. 3073 // Note: Some paths that came from "-internal-isystem" arguments may have 3074 // already been generated as "-isystem". If that's the case, their position on 3075 // command line was such that this has no semantic impact on include paths. 3076 for (; It < End && 3077 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3078 ++It) { 3079 OptSpecifier Opt = It->Group == frontend::System 3080 ? OPT_internal_isystem 3081 : OPT_internal_externc_isystem; 3082 GenerateArg(Args, Opt, It->Path, SA); 3083 } 3084 3085 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3086 3087 // Add the path prefixes which are implicitly treated as being system headers. 3088 for (const auto &P : Opts.SystemHeaderPrefixes) { 3089 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3090 : OPT_no_system_header_prefix; 3091 GenerateArg(Args, Opt, P.Prefix, SA); 3092 } 3093 3094 for (const std::string &F : Opts.VFSOverlayFiles) 3095 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3096 } 3097 3098 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3099 DiagnosticsEngine &Diags, 3100 const std::string &WorkingDir) { 3101 unsigned NumErrorsBefore = Diags.getNumErrors(); 3102 3103 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3104 3105 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3106 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3107 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3108 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3109 MERGER, EXTRACTOR, TABLE_INDEX) \ 3110 PARSE_OPTION_WITH_MARSHALLING( \ 3111 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3112 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3113 #include "clang/Driver/Options.inc" 3114 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3115 3116 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3117 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3118 3119 // Canonicalize -fmodules-cache-path before storing it. 3120 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3121 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3122 if (WorkingDir.empty()) 3123 llvm::sys::fs::make_absolute(P); 3124 else 3125 llvm::sys::fs::make_absolute(WorkingDir, P); 3126 } 3127 llvm::sys::path::remove_dots(P); 3128 Opts.ModuleCachePath = std::string(P.str()); 3129 3130 // Only the -fmodule-file=<name>=<file> form. 3131 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3132 StringRef Val = A->getValue(); 3133 if (Val.contains('=')) { 3134 auto Split = Val.split('='); 3135 Opts.PrebuiltModuleFiles.insert( 3136 {std::string(Split.first), std::string(Split.second)}); 3137 } 3138 } 3139 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3140 Opts.AddPrebuiltModulePath(A->getValue()); 3141 3142 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3143 StringRef MacroDef = A->getValue(); 3144 Opts.ModulesIgnoreMacros.insert( 3145 llvm::CachedHashString(MacroDef.split('=').first)); 3146 } 3147 3148 // Add -I..., -F..., and -index-header-map options in order. 3149 bool IsIndexHeaderMap = false; 3150 bool IsSysrootSpecified = 3151 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3152 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3153 if (A->getOption().matches(OPT_index_header_map)) { 3154 // -index-header-map applies to the next -I or -F. 3155 IsIndexHeaderMap = true; 3156 continue; 3157 } 3158 3159 frontend::IncludeDirGroup Group = 3160 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3161 3162 bool IsFramework = A->getOption().matches(OPT_F); 3163 std::string Path = A->getValue(); 3164 3165 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3166 SmallString<32> Buffer; 3167 llvm::sys::path::append(Buffer, Opts.Sysroot, 3168 llvm::StringRef(A->getValue()).substr(1)); 3169 Path = std::string(Buffer.str()); 3170 } 3171 3172 Opts.AddPath(Path, Group, IsFramework, 3173 /*IgnoreSysroot*/ true); 3174 IsIndexHeaderMap = false; 3175 } 3176 3177 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3178 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3179 for (const auto *A : 3180 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3181 if (A->getOption().matches(OPT_iprefix)) 3182 Prefix = A->getValue(); 3183 else if (A->getOption().matches(OPT_iwithprefix)) 3184 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3185 else 3186 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3187 } 3188 3189 for (const auto *A : Args.filtered(OPT_idirafter)) 3190 Opts.AddPath(A->getValue(), frontend::After, false, true); 3191 for (const auto *A : Args.filtered(OPT_iquote)) 3192 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3193 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3194 Opts.AddPath(A->getValue(), frontend::System, false, 3195 !A->getOption().matches(OPT_iwithsysroot)); 3196 for (const auto *A : Args.filtered(OPT_iframework)) 3197 Opts.AddPath(A->getValue(), frontend::System, true, true); 3198 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3199 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3200 /*IgnoreSysRoot=*/false); 3201 3202 // Add the paths for the various language specific isystem flags. 3203 for (const auto *A : Args.filtered(OPT_c_isystem)) 3204 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3205 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3206 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3207 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3208 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3209 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3210 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3211 3212 // Add the internal paths from a driver that detects standard include paths. 3213 for (const auto *A : 3214 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3215 frontend::IncludeDirGroup Group = frontend::System; 3216 if (A->getOption().matches(OPT_internal_externc_isystem)) 3217 Group = frontend::ExternCSystem; 3218 Opts.AddPath(A->getValue(), Group, false, true); 3219 } 3220 3221 // Add the path prefixes which are implicitly treated as being system headers. 3222 for (const auto *A : 3223 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3224 Opts.AddSystemHeaderPrefix( 3225 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3226 3227 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3228 Opts.AddVFSOverlayFile(A->getValue()); 3229 3230 return Diags.getNumErrors() == NumErrorsBefore; 3231 } 3232 3233 /// Check if input file kind and language standard are compatible. 3234 static bool IsInputCompatibleWithStandard(InputKind IK, 3235 const LangStandard &S) { 3236 switch (IK.getLanguage()) { 3237 case Language::Unknown: 3238 case Language::LLVM_IR: 3239 llvm_unreachable("should not parse language flags for this input"); 3240 3241 case Language::C: 3242 case Language::ObjC: 3243 case Language::RenderScript: 3244 return S.getLanguage() == Language::C; 3245 3246 case Language::OpenCL: 3247 return S.getLanguage() == Language::OpenCL || 3248 S.getLanguage() == Language::OpenCLCXX; 3249 3250 case Language::OpenCLCXX: 3251 return S.getLanguage() == Language::OpenCLCXX; 3252 3253 case Language::CXX: 3254 case Language::ObjCXX: 3255 return S.getLanguage() == Language::CXX; 3256 3257 case Language::CUDA: 3258 // FIXME: What -std= values should be permitted for CUDA compilations? 3259 return S.getLanguage() == Language::CUDA || 3260 S.getLanguage() == Language::CXX; 3261 3262 case Language::HIP: 3263 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3264 3265 case Language::Asm: 3266 // Accept (and ignore) all -std= values. 3267 // FIXME: The -std= value is not ignored; it affects the tokenization 3268 // and preprocessing rules if we're preprocessing this asm input. 3269 return true; 3270 3271 case Language::HLSL: 3272 return S.getLanguage() == Language::HLSL; 3273 } 3274 3275 llvm_unreachable("unexpected input language"); 3276 } 3277 3278 /// Get language name for given input kind. 3279 static StringRef GetInputKindName(InputKind IK) { 3280 switch (IK.getLanguage()) { 3281 case Language::C: 3282 return "C"; 3283 case Language::ObjC: 3284 return "Objective-C"; 3285 case Language::CXX: 3286 return "C++"; 3287 case Language::ObjCXX: 3288 return "Objective-C++"; 3289 case Language::OpenCL: 3290 return "OpenCL"; 3291 case Language::OpenCLCXX: 3292 return "C++ for OpenCL"; 3293 case Language::CUDA: 3294 return "CUDA"; 3295 case Language::RenderScript: 3296 return "RenderScript"; 3297 case Language::HIP: 3298 return "HIP"; 3299 3300 case Language::Asm: 3301 return "Asm"; 3302 case Language::LLVM_IR: 3303 return "LLVM IR"; 3304 3305 case Language::HLSL: 3306 return "HLSL"; 3307 3308 case Language::Unknown: 3309 break; 3310 } 3311 llvm_unreachable("unknown input language"); 3312 } 3313 3314 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3315 SmallVectorImpl<const char *> &Args, 3316 StringAllocator SA, 3317 const llvm::Triple &T, InputKind IK) { 3318 if (IK.getFormat() == InputKind::Precompiled || 3319 IK.getLanguage() == Language::LLVM_IR) { 3320 if (Opts.ObjCAutoRefCount) 3321 GenerateArg(Args, OPT_fobjc_arc, SA); 3322 if (Opts.PICLevel != 0) 3323 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3324 if (Opts.PIE) 3325 GenerateArg(Args, OPT_pic_is_pie, SA); 3326 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3327 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3328 3329 return; 3330 } 3331 3332 OptSpecifier StdOpt; 3333 switch (Opts.LangStd) { 3334 case LangStandard::lang_opencl10: 3335 case LangStandard::lang_opencl11: 3336 case LangStandard::lang_opencl12: 3337 case LangStandard::lang_opencl20: 3338 case LangStandard::lang_opencl30: 3339 case LangStandard::lang_openclcpp10: 3340 case LangStandard::lang_openclcpp2021: 3341 StdOpt = OPT_cl_std_EQ; 3342 break; 3343 default: 3344 StdOpt = OPT_std_EQ; 3345 break; 3346 } 3347 3348 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3349 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3350 3351 if (Opts.IncludeDefaultHeader) 3352 GenerateArg(Args, OPT_finclude_default_header, SA); 3353 if (Opts.DeclareOpenCLBuiltins) 3354 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3355 3356 const LangOptions *LangOpts = &Opts; 3357 3358 #define LANG_OPTION_WITH_MARSHALLING( \ 3359 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3360 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3361 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3362 MERGER, EXTRACTOR, TABLE_INDEX) \ 3363 GENERATE_OPTION_WITH_MARSHALLING( \ 3364 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3365 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3366 #include "clang/Driver/Options.inc" 3367 #undef LANG_OPTION_WITH_MARSHALLING 3368 3369 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3370 3371 if (Opts.ObjC) { 3372 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3373 3374 if (Opts.GC == LangOptions::GCOnly) 3375 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3376 else if (Opts.GC == LangOptions::HybridGC) 3377 GenerateArg(Args, OPT_fobjc_gc, SA); 3378 else if (Opts.ObjCAutoRefCount == 1) 3379 GenerateArg(Args, OPT_fobjc_arc, SA); 3380 3381 if (Opts.ObjCWeakRuntime) 3382 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3383 3384 if (Opts.ObjCWeak) 3385 GenerateArg(Args, OPT_fobjc_weak, SA); 3386 3387 if (Opts.ObjCSubscriptingLegacyRuntime) 3388 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3389 } 3390 3391 if (Opts.GNUCVersion != 0) { 3392 unsigned Major = Opts.GNUCVersion / 100 / 100; 3393 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3394 unsigned Patch = Opts.GNUCVersion % 100; 3395 GenerateArg(Args, OPT_fgnuc_version_EQ, 3396 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3397 } 3398 3399 if (Opts.IgnoreXCOFFVisibility) 3400 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3401 3402 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3403 GenerateArg(Args, OPT_ftrapv, SA); 3404 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3405 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3406 GenerateArg(Args, OPT_fwrapv, SA); 3407 } 3408 3409 if (Opts.MSCompatibilityVersion != 0) { 3410 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3411 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3412 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3413 GenerateArg(Args, OPT_fms_compatibility_version, 3414 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3415 } 3416 3417 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3418 if (!Opts.Trigraphs) 3419 GenerateArg(Args, OPT_fno_trigraphs, SA); 3420 } else { 3421 if (Opts.Trigraphs) 3422 GenerateArg(Args, OPT_ftrigraphs, SA); 3423 } 3424 3425 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3426 GenerateArg(Args, OPT_fblocks, SA); 3427 3428 if (Opts.ConvergentFunctions && 3429 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3430 GenerateArg(Args, OPT_fconvergent_functions, SA); 3431 3432 if (Opts.NoBuiltin && !Opts.Freestanding) 3433 GenerateArg(Args, OPT_fno_builtin, SA); 3434 3435 if (!Opts.NoBuiltin) 3436 for (const auto &Func : Opts.NoBuiltinFuncs) 3437 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3438 3439 if (Opts.LongDoubleSize == 128) 3440 GenerateArg(Args, OPT_mlong_double_128, SA); 3441 else if (Opts.LongDoubleSize == 64) 3442 GenerateArg(Args, OPT_mlong_double_64, SA); 3443 else if (Opts.LongDoubleSize == 80) 3444 GenerateArg(Args, OPT_mlong_double_80, SA); 3445 3446 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3447 3448 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3449 // '-fopenmp-targets='. 3450 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3451 GenerateArg(Args, OPT_fopenmp, SA); 3452 3453 if (Opts.OpenMP != 50) 3454 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3455 3456 if (!Opts.OpenMPUseTLS) 3457 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3458 3459 if (Opts.OpenMPIsDevice) 3460 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3461 3462 if (Opts.OpenMPIRBuilder) 3463 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3464 } 3465 3466 if (Opts.OpenMPSimd) { 3467 GenerateArg(Args, OPT_fopenmp_simd, SA); 3468 3469 if (Opts.OpenMP != 50) 3470 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3471 } 3472 3473 if (Opts.OpenMPThreadSubscription) 3474 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3475 3476 if (Opts.OpenMPTeamSubscription) 3477 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3478 3479 if (Opts.OpenMPTargetDebug != 0) 3480 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3481 Twine(Opts.OpenMPTargetDebug), SA); 3482 3483 if (Opts.OpenMPCUDANumSMs != 0) 3484 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3485 Twine(Opts.OpenMPCUDANumSMs), SA); 3486 3487 if (Opts.OpenMPCUDABlocksPerSM != 0) 3488 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3489 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3490 3491 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3492 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3493 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3494 3495 if (!Opts.OMPTargetTriples.empty()) { 3496 std::string Targets; 3497 llvm::raw_string_ostream OS(Targets); 3498 llvm::interleave( 3499 Opts.OMPTargetTriples, OS, 3500 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3501 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3502 } 3503 3504 if (!Opts.OMPHostIRFile.empty()) 3505 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3506 3507 if (Opts.OpenMPCUDAMode) 3508 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3509 3510 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3511 // generated from CodeGenOptions. 3512 3513 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3514 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3515 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3516 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3517 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3518 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3519 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3520 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3521 3522 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3523 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3524 3525 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3526 for (const std::string &F : Opts.NoSanitizeFiles) 3527 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3528 3529 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3530 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3531 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3532 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3533 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3534 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3535 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3536 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3537 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3538 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3539 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3540 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3541 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3542 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3543 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3544 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3545 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3546 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3547 3548 if (Opts.getSignReturnAddressScope() == 3549 LangOptions::SignReturnAddressScopeKind::All) 3550 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3551 else if (Opts.getSignReturnAddressScope() == 3552 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3553 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3554 3555 if (Opts.getSignReturnAddressKey() == 3556 LangOptions::SignReturnAddressKeyKind::BKey) 3557 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3558 3559 if (Opts.CXXABI) 3560 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3561 SA); 3562 3563 if (Opts.RelativeCXXABIVTables) 3564 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3565 else 3566 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3567 3568 if (Opts.UseTargetPathSeparator) 3569 GenerateArg(Args, OPT_ffile_reproducible, SA); 3570 else 3571 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3572 3573 for (const auto &MP : Opts.MacroPrefixMap) 3574 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3575 3576 if (!Opts.RandstructSeed.empty()) 3577 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3578 } 3579 3580 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3581 InputKind IK, const llvm::Triple &T, 3582 std::vector<std::string> &Includes, 3583 DiagnosticsEngine &Diags) { 3584 unsigned NumErrorsBefore = Diags.getNumErrors(); 3585 3586 if (IK.getFormat() == InputKind::Precompiled || 3587 IK.getLanguage() == Language::LLVM_IR) { 3588 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3589 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3590 // what the input type is. 3591 if (Args.hasArg(OPT_fobjc_arc)) 3592 Opts.ObjCAutoRefCount = 1; 3593 // PICLevel and PIELevel are needed during code generation and this should 3594 // be set regardless of the input type. 3595 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3596 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3597 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3598 Diags, Opts.Sanitize); 3599 3600 return Diags.getNumErrors() == NumErrorsBefore; 3601 } 3602 3603 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3604 // FIXME: Should we really be parsing this for an Language::Asm input? 3605 3606 // FIXME: Cleanup per-file based stuff. 3607 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3608 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3609 LangStd = LangStandard::getLangKind(A->getValue()); 3610 if (LangStd == LangStandard::lang_unspecified) { 3611 Diags.Report(diag::err_drv_invalid_value) 3612 << A->getAsString(Args) << A->getValue(); 3613 // Report supported standards with short description. 3614 for (unsigned KindValue = 0; 3615 KindValue != LangStandard::lang_unspecified; 3616 ++KindValue) { 3617 const LangStandard &Std = LangStandard::getLangStandardForKind( 3618 static_cast<LangStandard::Kind>(KindValue)); 3619 if (IsInputCompatibleWithStandard(IK, Std)) { 3620 auto Diag = Diags.Report(diag::note_drv_use_standard); 3621 Diag << Std.getName() << Std.getDescription(); 3622 unsigned NumAliases = 0; 3623 #define LANGSTANDARD(id, name, lang, desc, features) 3624 #define LANGSTANDARD_ALIAS(id, alias) \ 3625 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3626 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3627 #include "clang/Basic/LangStandards.def" 3628 Diag << NumAliases; 3629 #define LANGSTANDARD(id, name, lang, desc, features) 3630 #define LANGSTANDARD_ALIAS(id, alias) \ 3631 if (KindValue == LangStandard::lang_##id) Diag << alias; 3632 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3633 #include "clang/Basic/LangStandards.def" 3634 } 3635 } 3636 } else { 3637 // Valid standard, check to make sure language and standard are 3638 // compatible. 3639 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3640 if (!IsInputCompatibleWithStandard(IK, Std)) { 3641 Diags.Report(diag::err_drv_argument_not_allowed_with) 3642 << A->getAsString(Args) << GetInputKindName(IK); 3643 } 3644 } 3645 } 3646 3647 // -cl-std only applies for OpenCL language standards. 3648 // Override the -std option in this case. 3649 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3650 LangStandard::Kind OpenCLLangStd 3651 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3652 .Cases("cl", "CL", LangStandard::lang_opencl10) 3653 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3654 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3655 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3656 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3657 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3658 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3659 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3660 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3661 .Default(LangStandard::lang_unspecified); 3662 3663 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3664 Diags.Report(diag::err_drv_invalid_value) 3665 << A->getAsString(Args) << A->getValue(); 3666 } 3667 else 3668 LangStd = OpenCLLangStd; 3669 } 3670 3671 // These need to be parsed now. They are used to set OpenCL defaults. 3672 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3673 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3674 3675 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3676 3677 // The key paths of codegen options defined in Options.td start with 3678 // "LangOpts->". Let's provide the expected variable name and type. 3679 LangOptions *LangOpts = &Opts; 3680 3681 #define LANG_OPTION_WITH_MARSHALLING( \ 3682 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3683 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3684 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3685 MERGER, EXTRACTOR, TABLE_INDEX) \ 3686 PARSE_OPTION_WITH_MARSHALLING( \ 3687 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3688 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3689 #include "clang/Driver/Options.inc" 3690 #undef LANG_OPTION_WITH_MARSHALLING 3691 3692 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3693 StringRef Name = A->getValue(); 3694 if (Name == "full" || Name == "branch") { 3695 Opts.CFProtectionBranch = 1; 3696 } 3697 } 3698 3699 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3700 !Args.hasArg(OPT_sycl_std_EQ)) { 3701 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3702 // provide -sycl-std=, we want to default it to whatever the default SYCL 3703 // version is. I could not find a way to express this with the options 3704 // tablegen because we still want this value to be SYCL_None when the user 3705 // is not in device or host mode. 3706 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3707 } 3708 3709 if (Opts.ObjC) { 3710 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3711 StringRef value = arg->getValue(); 3712 if (Opts.ObjCRuntime.tryParse(value)) 3713 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3714 } 3715 3716 if (Args.hasArg(OPT_fobjc_gc_only)) 3717 Opts.setGC(LangOptions::GCOnly); 3718 else if (Args.hasArg(OPT_fobjc_gc)) 3719 Opts.setGC(LangOptions::HybridGC); 3720 else if (Args.hasArg(OPT_fobjc_arc)) { 3721 Opts.ObjCAutoRefCount = 1; 3722 if (!Opts.ObjCRuntime.allowsARC()) 3723 Diags.Report(diag::err_arc_unsupported_on_runtime); 3724 } 3725 3726 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3727 // whether the feature is actually enabled. This is predominantly 3728 // determined by -fobjc-runtime, but we allow it to be overridden 3729 // from the command line for testing purposes. 3730 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3731 Opts.ObjCWeakRuntime = 1; 3732 else 3733 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3734 3735 // ObjCWeak determines whether __weak is actually enabled. 3736 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3737 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3738 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3739 assert(!Opts.ObjCWeak); 3740 } else if (Opts.getGC() != LangOptions::NonGC) { 3741 Diags.Report(diag::err_objc_weak_with_gc); 3742 } else if (!Opts.ObjCWeakRuntime) { 3743 Diags.Report(diag::err_objc_weak_unsupported); 3744 } else { 3745 Opts.ObjCWeak = 1; 3746 } 3747 } else if (Opts.ObjCAutoRefCount) { 3748 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3749 } 3750 3751 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3752 Opts.ObjCSubscriptingLegacyRuntime = 3753 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3754 } 3755 3756 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3757 // Check that the version has 1 to 3 components and the minor and patch 3758 // versions fit in two decimal digits. 3759 VersionTuple GNUCVer; 3760 bool Invalid = GNUCVer.tryParse(A->getValue()); 3761 unsigned Major = GNUCVer.getMajor(); 3762 unsigned Minor = GNUCVer.getMinor().value_or(0); 3763 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3764 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3765 Diags.Report(diag::err_drv_invalid_value) 3766 << A->getAsString(Args) << A->getValue(); 3767 } 3768 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3769 } 3770 3771 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3772 Opts.IgnoreXCOFFVisibility = 1; 3773 3774 if (Args.hasArg(OPT_ftrapv)) { 3775 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3776 // Set the handler, if one is specified. 3777 Opts.OverflowHandler = 3778 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3779 } 3780 else if (Args.hasArg(OPT_fwrapv)) 3781 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3782 3783 Opts.MSCompatibilityVersion = 0; 3784 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3785 VersionTuple VT; 3786 if (VT.tryParse(A->getValue())) 3787 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3788 << A->getValue(); 3789 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3790 VT.getMinor().value_or(0) * 100000 + 3791 VT.getSubminor().value_or(0); 3792 } 3793 3794 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3795 // is specified, or -std is set to a conforming mode. 3796 // Trigraphs are disabled by default in c++1z onwards. 3797 // For z/OS, trigraphs are enabled by default (without regard to the above). 3798 Opts.Trigraphs = 3799 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3800 Opts.Trigraphs = 3801 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3802 3803 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3804 && Opts.OpenCLVersion == 200); 3805 3806 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3807 Opts.SYCLIsDevice || 3808 Args.hasArg(OPT_fconvergent_functions); 3809 3810 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3811 if (!Opts.NoBuiltin) 3812 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3813 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3814 if (A->getOption().matches(options::OPT_mlong_double_64)) 3815 Opts.LongDoubleSize = 64; 3816 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3817 Opts.LongDoubleSize = 80; 3818 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3819 Opts.LongDoubleSize = 128; 3820 else 3821 Opts.LongDoubleSize = 0; 3822 } 3823 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3824 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3825 3826 llvm::sort(Opts.ModuleFeatures); 3827 3828 // -mrtd option 3829 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3830 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3831 Diags.Report(diag::err_drv_argument_not_allowed_with) 3832 << A->getSpelling() << "-fdefault-calling-conv"; 3833 else { 3834 if (T.getArch() != llvm::Triple::x86) 3835 Diags.Report(diag::err_drv_argument_not_allowed_with) 3836 << A->getSpelling() << T.getTriple(); 3837 else 3838 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3839 } 3840 } 3841 3842 // Check if -fopenmp is specified and set default version to 5.0. 3843 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3844 // Check if -fopenmp-simd is specified. 3845 bool IsSimdSpecified = 3846 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3847 /*Default=*/false); 3848 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3849 Opts.OpenMPUseTLS = 3850 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3851 Opts.OpenMPIsDevice = 3852 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3853 Opts.OpenMPIRBuilder = 3854 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3855 bool IsTargetSpecified = 3856 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3857 3858 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3859 3860 if (Opts.OpenMP || Opts.OpenMPSimd) { 3861 if (int Version = getLastArgIntValue( 3862 Args, OPT_fopenmp_version_EQ, 3863 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3864 Opts.OpenMP = Version; 3865 // Provide diagnostic when a given target is not expected to be an OpenMP 3866 // device or host. 3867 if (!Opts.OpenMPIsDevice) { 3868 switch (T.getArch()) { 3869 default: 3870 break; 3871 // Add unsupported host targets here: 3872 case llvm::Triple::nvptx: 3873 case llvm::Triple::nvptx64: 3874 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3875 break; 3876 } 3877 } 3878 } 3879 3880 // Set the flag to prevent the implementation from emitting device exception 3881 // handling code for those requiring so. 3882 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3883 Opts.OpenCLCPlusPlus) { 3884 3885 Opts.Exceptions = 0; 3886 Opts.CXXExceptions = 0; 3887 } 3888 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3889 Opts.OpenMPCUDANumSMs = 3890 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3891 Opts.OpenMPCUDANumSMs, Diags); 3892 Opts.OpenMPCUDABlocksPerSM = 3893 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3894 Opts.OpenMPCUDABlocksPerSM, Diags); 3895 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3896 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3897 Opts.OpenMPCUDAReductionBufNum, Diags); 3898 } 3899 3900 // Set the value of the debugging flag used in the new offloading device RTL. 3901 // Set either by a specific value or to a default if not specified. 3902 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3903 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3904 Opts.OpenMPTargetDebug = getLastArgIntValue( 3905 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3906 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3907 Opts.OpenMPTargetDebug = 1; 3908 } 3909 3910 if (Opts.OpenMPIsDevice) { 3911 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3912 Opts.OpenMPTeamSubscription = true; 3913 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3914 Opts.OpenMPThreadSubscription = true; 3915 } 3916 3917 // Get the OpenMP target triples if any. 3918 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3919 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3920 auto getArchPtrSize = [](const llvm::Triple &T) { 3921 if (T.isArch16Bit()) 3922 return Arch16Bit; 3923 if (T.isArch32Bit()) 3924 return Arch32Bit; 3925 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3926 return Arch64Bit; 3927 }; 3928 3929 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3930 llvm::Triple TT(A->getValue(i)); 3931 3932 if (TT.getArch() == llvm::Triple::UnknownArch || 3933 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3934 TT.getArch() == llvm::Triple::nvptx || 3935 TT.getArch() == llvm::Triple::nvptx64 || 3936 TT.getArch() == llvm::Triple::amdgcn || 3937 TT.getArch() == llvm::Triple::x86 || 3938 TT.getArch() == llvm::Triple::x86_64)) 3939 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3940 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3941 Diags.Report(diag::err_drv_incompatible_omp_arch) 3942 << A->getValue(i) << T.str(); 3943 else 3944 Opts.OMPTargetTriples.push_back(TT); 3945 } 3946 } 3947 3948 // Get OpenMP host file path if any and report if a non existent file is 3949 // found 3950 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3951 Opts.OMPHostIRFile = A->getValue(); 3952 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3953 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3954 << Opts.OMPHostIRFile; 3955 } 3956 3957 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3958 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3959 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3960 3961 // FIXME: Eliminate this dependency. 3962 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3963 OptSize = getOptimizationLevelSize(Args); 3964 Opts.Optimize = Opt != 0; 3965 Opts.OptimizeSize = OptSize != 0; 3966 3967 // This is the __NO_INLINE__ define, which just depends on things like the 3968 // optimization level and -fno-inline, not actually whether the backend has 3969 // inlining enabled. 3970 Opts.NoInlineDefine = !Opts.Optimize; 3971 if (Arg *InlineArg = Args.getLastArg( 3972 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3973 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3974 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3975 Opts.NoInlineDefine = true; 3976 3977 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3978 StringRef Val = A->getValue(); 3979 if (Val == "fast") 3980 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3981 else if (Val == "on") 3982 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3983 else if (Val == "off") 3984 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3985 else if (Val == "fast-honor-pragmas") 3986 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3987 else 3988 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3989 } 3990 3991 // Parse -fsanitize= arguments. 3992 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3993 Diags, Opts.Sanitize); 3994 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3995 std::vector<std::string> systemIgnorelists = 3996 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3997 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3998 systemIgnorelists.begin(), 3999 systemIgnorelists.end()); 4000 4001 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4002 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4003 4004 StringRef Ver = A->getValue(); 4005 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4006 unsigned Major, Minor = 0; 4007 4008 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4009 // y or y.0 (4 <= y <= current version). 4010 if (!VerParts.first.startswith("0") && 4011 !VerParts.first.getAsInteger(10, Major) && 4012 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4013 (Major == 3 ? VerParts.second.size() == 1 && 4014 !VerParts.second.getAsInteger(10, Minor) 4015 : VerParts.first.size() == Ver.size() || 4016 VerParts.second == "0")) { 4017 // Got a valid version number. 4018 if (Major == 3 && Minor <= 8) 4019 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4020 else if (Major <= 4) 4021 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4022 else if (Major <= 6) 4023 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4024 else if (Major <= 7) 4025 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4026 else if (Major <= 9) 4027 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4028 else if (Major <= 11) 4029 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4030 else if (Major <= 12) 4031 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4032 else if (Major <= 14) 4033 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4034 else if (Major <= 15) 4035 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4036 } else if (Ver != "latest") { 4037 Diags.Report(diag::err_drv_invalid_value) 4038 << A->getAsString(Args) << A->getValue(); 4039 } 4040 } 4041 4042 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4043 StringRef SignScope = A->getValue(); 4044 4045 if (SignScope.equals_insensitive("none")) 4046 Opts.setSignReturnAddressScope( 4047 LangOptions::SignReturnAddressScopeKind::None); 4048 else if (SignScope.equals_insensitive("all")) 4049 Opts.setSignReturnAddressScope( 4050 LangOptions::SignReturnAddressScopeKind::All); 4051 else if (SignScope.equals_insensitive("non-leaf")) 4052 Opts.setSignReturnAddressScope( 4053 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4054 else 4055 Diags.Report(diag::err_drv_invalid_value) 4056 << A->getAsString(Args) << SignScope; 4057 4058 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4059 StringRef SignKey = A->getValue(); 4060 if (!SignScope.empty() && !SignKey.empty()) { 4061 if (SignKey.equals_insensitive("a_key")) 4062 Opts.setSignReturnAddressKey( 4063 LangOptions::SignReturnAddressKeyKind::AKey); 4064 else if (SignKey.equals_insensitive("b_key")) 4065 Opts.setSignReturnAddressKey( 4066 LangOptions::SignReturnAddressKeyKind::BKey); 4067 else 4068 Diags.Report(diag::err_drv_invalid_value) 4069 << A->getAsString(Args) << SignKey; 4070 } 4071 } 4072 } 4073 4074 // The value can be empty, which indicates the system default should be used. 4075 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4076 if (!CXXABI.empty()) { 4077 if (!TargetCXXABI::isABI(CXXABI)) { 4078 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4079 } else { 4080 auto Kind = TargetCXXABI::getKind(CXXABI); 4081 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4082 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4083 else 4084 Opts.CXXABI = Kind; 4085 } 4086 } 4087 4088 Opts.RelativeCXXABIVTables = 4089 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4090 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4091 TargetCXXABI::usesRelativeVTables(T)); 4092 4093 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4094 auto Split = StringRef(A).split('='); 4095 Opts.MacroPrefixMap.insert( 4096 {std::string(Split.first), std::string(Split.second)}); 4097 } 4098 4099 Opts.UseTargetPathSeparator = 4100 !Args.getLastArg(OPT_fno_file_reproducible) && 4101 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4102 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4103 Args.getLastArg(OPT_ffile_reproducible)); 4104 4105 // Error if -mvscale-min is unbounded. 4106 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4107 unsigned VScaleMin; 4108 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4109 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4110 } 4111 4112 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4113 std::ifstream SeedFile(A->getValue(0)); 4114 4115 if (!SeedFile.is_open()) 4116 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4117 << A->getValue(0); 4118 4119 std::getline(SeedFile, Opts.RandstructSeed); 4120 } 4121 4122 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4123 Opts.RandstructSeed = A->getValue(0); 4124 4125 // Validate options for HLSL 4126 if (Opts.HLSL) { 4127 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4128 T.getOS() == llvm::Triple::ShaderModel; 4129 if (!SupportedTarget) 4130 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4131 } 4132 4133 return Diags.getNumErrors() == NumErrorsBefore; 4134 } 4135 4136 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4137 switch (Action) { 4138 case frontend::ASTDeclList: 4139 case frontend::ASTDump: 4140 case frontend::ASTPrint: 4141 case frontend::ASTView: 4142 case frontend::EmitAssembly: 4143 case frontend::EmitBC: 4144 case frontend::EmitHTML: 4145 case frontend::EmitLLVM: 4146 case frontend::EmitLLVMOnly: 4147 case frontend::EmitCodeGenOnly: 4148 case frontend::EmitObj: 4149 case frontend::ExtractAPI: 4150 case frontend::FixIt: 4151 case frontend::GenerateModule: 4152 case frontend::GenerateModuleInterface: 4153 case frontend::GenerateHeaderUnit: 4154 case frontend::GeneratePCH: 4155 case frontend::GenerateInterfaceStubs: 4156 case frontend::ParseSyntaxOnly: 4157 case frontend::ModuleFileInfo: 4158 case frontend::VerifyPCH: 4159 case frontend::PluginAction: 4160 case frontend::RewriteObjC: 4161 case frontend::RewriteTest: 4162 case frontend::RunAnalysis: 4163 case frontend::TemplightDump: 4164 case frontend::MigrateSource: 4165 return false; 4166 4167 case frontend::DumpCompilerOptions: 4168 case frontend::DumpRawTokens: 4169 case frontend::DumpTokens: 4170 case frontend::InitOnly: 4171 case frontend::PrintPreamble: 4172 case frontend::PrintPreprocessedInput: 4173 case frontend::RewriteMacros: 4174 case frontend::RunPreprocessorOnly: 4175 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4176 return true; 4177 } 4178 llvm_unreachable("invalid frontend action"); 4179 } 4180 4181 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4182 SmallVectorImpl<const char *> &Args, 4183 CompilerInvocation::StringAllocator SA, 4184 const LangOptions &LangOpts, 4185 const FrontendOptions &FrontendOpts, 4186 const CodeGenOptions &CodeGenOpts) { 4187 PreprocessorOptions *PreprocessorOpts = &Opts; 4188 4189 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4190 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4191 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4192 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4193 MERGER, EXTRACTOR, TABLE_INDEX) \ 4194 GENERATE_OPTION_WITH_MARSHALLING( \ 4195 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4196 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4197 #include "clang/Driver/Options.inc" 4198 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4199 4200 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4201 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4202 4203 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4204 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4205 4206 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4207 GenerateArg(Args, OPT_preamble_bytes_EQ, 4208 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4209 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4210 SA); 4211 4212 for (const auto &M : Opts.Macros) { 4213 // Don't generate __CET__ macro definitions. They are implied by the 4214 // -fcf-protection option that is generated elsewhere. 4215 if (M.first == "__CET__=1" && !M.second && 4216 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4217 continue; 4218 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4219 !CodeGenOpts.CFProtectionBranch) 4220 continue; 4221 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4222 CodeGenOpts.CFProtectionBranch) 4223 continue; 4224 4225 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4226 } 4227 4228 for (const auto &I : Opts.Includes) { 4229 // Don't generate OpenCL includes. They are implied by other flags that are 4230 // generated elsewhere. 4231 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4232 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4233 I == "opencl-c.h")) 4234 continue; 4235 // Don't generate HLSL includes. They are implied by other flags that are 4236 // generated elsewhere. 4237 if (LangOpts.HLSL && I == "hlsl.h") 4238 continue; 4239 4240 GenerateArg(Args, OPT_include, I, SA); 4241 } 4242 4243 for (const auto &CI : Opts.ChainedIncludes) 4244 GenerateArg(Args, OPT_chain_include, CI, SA); 4245 4246 for (const auto &RF : Opts.RemappedFiles) 4247 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4248 4249 if (Opts.SourceDateEpoch) 4250 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4251 4252 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4253 // generated elsewhere. 4254 } 4255 4256 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4257 DiagnosticsEngine &Diags, 4258 frontend::ActionKind Action, 4259 const FrontendOptions &FrontendOpts) { 4260 unsigned NumErrorsBefore = Diags.getNumErrors(); 4261 4262 PreprocessorOptions *PreprocessorOpts = &Opts; 4263 4264 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4265 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4266 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4267 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4268 MERGER, EXTRACTOR, TABLE_INDEX) \ 4269 PARSE_OPTION_WITH_MARSHALLING( \ 4270 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4271 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4272 #include "clang/Driver/Options.inc" 4273 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4274 4275 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4276 Args.hasArg(OPT_pch_through_hdrstop_use); 4277 4278 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4279 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4280 4281 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4282 StringRef Value(A->getValue()); 4283 size_t Comma = Value.find(','); 4284 unsigned Bytes = 0; 4285 unsigned EndOfLine = 0; 4286 4287 if (Comma == StringRef::npos || 4288 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4289 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4290 Diags.Report(diag::err_drv_preamble_format); 4291 else { 4292 Opts.PrecompiledPreambleBytes.first = Bytes; 4293 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4294 } 4295 } 4296 4297 // Add the __CET__ macro if a CFProtection option is set. 4298 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4299 StringRef Name = A->getValue(); 4300 if (Name == "branch") 4301 Opts.addMacroDef("__CET__=1"); 4302 else if (Name == "return") 4303 Opts.addMacroDef("__CET__=2"); 4304 else if (Name == "full") 4305 Opts.addMacroDef("__CET__=3"); 4306 } 4307 4308 // Add macros from the command line. 4309 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4310 if (A->getOption().matches(OPT_D)) 4311 Opts.addMacroDef(A->getValue()); 4312 else 4313 Opts.addMacroUndef(A->getValue()); 4314 } 4315 4316 // Add the ordered list of -includes. 4317 for (const auto *A : Args.filtered(OPT_include)) 4318 Opts.Includes.emplace_back(A->getValue()); 4319 4320 for (const auto *A : Args.filtered(OPT_chain_include)) 4321 Opts.ChainedIncludes.emplace_back(A->getValue()); 4322 4323 for (const auto *A : Args.filtered(OPT_remap_file)) { 4324 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4325 4326 if (Split.second.empty()) { 4327 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4328 continue; 4329 } 4330 4331 Opts.addRemappedFile(Split.first, Split.second); 4332 } 4333 4334 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4335 StringRef Epoch = A->getValue(); 4336 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4337 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4338 // 9999-12-31T23:59:59Z) as the upper bound. 4339 const uint64_t MaxTimestamp = 4340 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4341 uint64_t V; 4342 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4343 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4344 << Epoch << MaxTimestamp; 4345 } else { 4346 Opts.SourceDateEpoch = V; 4347 } 4348 } 4349 4350 // Always avoid lexing editor placeholders when we're just running the 4351 // preprocessor as we never want to emit the 4352 // "editor placeholder in source file" error in PP only mode. 4353 if (isStrictlyPreprocessorAction(Action)) 4354 Opts.LexEditorPlaceholders = false; 4355 4356 return Diags.getNumErrors() == NumErrorsBefore; 4357 } 4358 4359 static void GeneratePreprocessorOutputArgs( 4360 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4361 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4362 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4363 4364 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4365 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4366 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4367 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4368 MERGER, EXTRACTOR, TABLE_INDEX) \ 4369 GENERATE_OPTION_WITH_MARSHALLING( \ 4370 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4371 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4372 #include "clang/Driver/Options.inc" 4373 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4374 4375 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4376 if (Generate_dM) 4377 GenerateArg(Args, OPT_dM, SA); 4378 if (!Generate_dM && Opts.ShowMacros) 4379 GenerateArg(Args, OPT_dD, SA); 4380 if (Opts.DirectivesOnly) 4381 GenerateArg(Args, OPT_fdirectives_only, SA); 4382 } 4383 4384 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4385 ArgList &Args, DiagnosticsEngine &Diags, 4386 frontend::ActionKind Action) { 4387 unsigned NumErrorsBefore = Diags.getNumErrors(); 4388 4389 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4390 4391 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4392 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4393 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4394 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4395 MERGER, EXTRACTOR, TABLE_INDEX) \ 4396 PARSE_OPTION_WITH_MARSHALLING( \ 4397 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4398 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4399 #include "clang/Driver/Options.inc" 4400 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4401 4402 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4403 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4404 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4405 4406 return Diags.getNumErrors() == NumErrorsBefore; 4407 } 4408 4409 static void GenerateTargetArgs(const TargetOptions &Opts, 4410 SmallVectorImpl<const char *> &Args, 4411 CompilerInvocation::StringAllocator SA) { 4412 const TargetOptions *TargetOpts = &Opts; 4413 #define TARGET_OPTION_WITH_MARSHALLING( \ 4414 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4415 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4416 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4417 MERGER, EXTRACTOR, TABLE_INDEX) \ 4418 GENERATE_OPTION_WITH_MARSHALLING( \ 4419 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4420 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4421 #include "clang/Driver/Options.inc" 4422 #undef TARGET_OPTION_WITH_MARSHALLING 4423 4424 if (!Opts.SDKVersion.empty()) 4425 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4426 SA); 4427 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4428 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4429 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4430 } 4431 4432 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4433 DiagnosticsEngine &Diags) { 4434 unsigned NumErrorsBefore = Diags.getNumErrors(); 4435 4436 TargetOptions *TargetOpts = &Opts; 4437 4438 #define TARGET_OPTION_WITH_MARSHALLING( \ 4439 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4440 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4441 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4442 MERGER, EXTRACTOR, TABLE_INDEX) \ 4443 PARSE_OPTION_WITH_MARSHALLING( \ 4444 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4445 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4446 #include "clang/Driver/Options.inc" 4447 #undef TARGET_OPTION_WITH_MARSHALLING 4448 4449 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4450 llvm::VersionTuple Version; 4451 if (Version.tryParse(A->getValue())) 4452 Diags.Report(diag::err_drv_invalid_value) 4453 << A->getAsString(Args) << A->getValue(); 4454 else 4455 Opts.SDKVersion = Version; 4456 } 4457 if (Arg *A = 4458 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4459 llvm::VersionTuple Version; 4460 if (Version.tryParse(A->getValue())) 4461 Diags.Report(diag::err_drv_invalid_value) 4462 << A->getAsString(Args) << A->getValue(); 4463 else 4464 Opts.DarwinTargetVariantSDKVersion = Version; 4465 } 4466 4467 return Diags.getNumErrors() == NumErrorsBefore; 4468 } 4469 4470 bool CompilerInvocation::CreateFromArgsImpl( 4471 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4472 DiagnosticsEngine &Diags, const char *Argv0) { 4473 unsigned NumErrorsBefore = Diags.getNumErrors(); 4474 4475 // Parse the arguments. 4476 const OptTable &Opts = getDriverOptTable(); 4477 const unsigned IncludedFlagsBitmask = options::CC1Option; 4478 unsigned MissingArgIndex, MissingArgCount; 4479 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4480 MissingArgCount, IncludedFlagsBitmask); 4481 LangOptions &LangOpts = *Res.getLangOpts(); 4482 4483 // Check for missing argument error. 4484 if (MissingArgCount) 4485 Diags.Report(diag::err_drv_missing_argument) 4486 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4487 4488 // Issue errors on unknown arguments. 4489 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4490 auto ArgString = A->getAsString(Args); 4491 std::string Nearest; 4492 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4493 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4494 else 4495 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4496 << ArgString << Nearest; 4497 } 4498 4499 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4500 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4501 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4502 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4503 /*DefaultDiagColor=*/false); 4504 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4505 // FIXME: We shouldn't have to pass the DashX option around here 4506 InputKind DashX = Res.getFrontendOpts().DashX; 4507 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4508 llvm::Triple T(Res.getTargetOpts().Triple); 4509 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4510 Res.getFileSystemOpts().WorkingDir); 4511 4512 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4513 Diags); 4514 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4515 LangOpts.ObjCExceptions = 1; 4516 4517 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4518 if (Warning == "misexpect" && 4519 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4520 Res.getCodeGenOpts().MisExpect = true; 4521 } 4522 } 4523 4524 if (LangOpts.CUDA) { 4525 // During CUDA device-side compilation, the aux triple is the 4526 // triple used for host compilation. 4527 if (LangOpts.CUDAIsDevice) 4528 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4529 } 4530 4531 // Set the triple of the host for OpenMP device compile. 4532 if (LangOpts.OpenMPIsDevice) 4533 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4534 4535 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4536 Res.getFrontendOpts().OutputFile, LangOpts); 4537 4538 // FIXME: Override value name discarding when asan or msan is used because the 4539 // backend passes depend on the name of the alloca in order to print out 4540 // names. 4541 Res.getCodeGenOpts().DiscardValueNames &= 4542 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4543 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4544 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4545 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4546 4547 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4548 Res.getFrontendOpts().ProgramAction, 4549 Res.getFrontendOpts()); 4550 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4551 Res.getFrontendOpts().ProgramAction); 4552 4553 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4554 Res.getFrontendOpts().ProgramAction, 4555 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4556 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4557 Res.getDependencyOutputOpts().Targets.empty()) 4558 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4559 4560 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4561 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4562 !Res.getLangOpts()->Sanitize.empty()) { 4563 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4564 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4565 } 4566 4567 // Store the command-line for using in the CodeView backend. 4568 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4569 Res.getCodeGenOpts().Argv0 = Argv0; 4570 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4571 } 4572 4573 FixupInvocation(Res, Diags, Args, DashX); 4574 4575 return Diags.getNumErrors() == NumErrorsBefore; 4576 } 4577 4578 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4579 ArrayRef<const char *> CommandLineArgs, 4580 DiagnosticsEngine &Diags, 4581 const char *Argv0) { 4582 CompilerInvocation DummyInvocation; 4583 4584 return RoundTrip( 4585 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4586 DiagnosticsEngine &Diags, const char *Argv0) { 4587 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4588 }, 4589 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4590 StringAllocator SA) { 4591 Args.push_back("-cc1"); 4592 Invocation.generateCC1CommandLine(Args, SA); 4593 }, 4594 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4595 } 4596 4597 std::string CompilerInvocation::getModuleHash() const { 4598 // FIXME: Consider using SHA1 instead of MD5. 4599 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4600 4601 // Note: For QoI reasons, the things we use as a hash here should all be 4602 // dumped via the -module-info flag. 4603 4604 // Start the signature with the compiler version. 4605 HBuilder.add(getClangFullRepositoryVersion()); 4606 4607 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4608 // and getClangFullRepositoryVersion() doesn't include git revision. 4609 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4610 4611 // Extend the signature with the language options 4612 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4613 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4614 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4615 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4616 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4617 #include "clang/Basic/LangOptions.def" 4618 4619 HBuilder.addRange(LangOpts->ModuleFeatures); 4620 4621 HBuilder.add(LangOpts->ObjCRuntime); 4622 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4623 4624 // Extend the signature with the target options. 4625 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4626 TargetOpts->ABI); 4627 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4628 4629 // Extend the signature with preprocessor options. 4630 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4631 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4632 4633 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4634 for (const auto &Macro : getPreprocessorOpts().Macros) { 4635 // If we're supposed to ignore this macro for the purposes of modules, 4636 // don't put it into the hash. 4637 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4638 // Check whether we're ignoring this macro. 4639 StringRef MacroDef = Macro.first; 4640 if (hsOpts.ModulesIgnoreMacros.count( 4641 llvm::CachedHashString(MacroDef.split('=').first))) 4642 continue; 4643 } 4644 4645 HBuilder.add(Macro); 4646 } 4647 4648 // Extend the signature with the sysroot and other header search options. 4649 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4650 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4651 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4652 hsOpts.ModulesValidateDiagnosticOptions); 4653 HBuilder.add(hsOpts.ResourceDir); 4654 4655 if (hsOpts.ModulesStrictContextHash) { 4656 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4657 HBuilder.addRange(hsOpts.UserEntries); 4658 4659 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4660 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4661 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4662 HBuilder.add(diagOpts.get##Name()); 4663 #include "clang/Basic/DiagnosticOptions.def" 4664 #undef DIAGOPT 4665 #undef ENUM_DIAGOPT 4666 } 4667 4668 // Extend the signature with the user build path. 4669 HBuilder.add(hsOpts.ModuleUserBuildPath); 4670 4671 // Extend the signature with the module file extensions. 4672 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4673 ext->hashExtension(HBuilder); 4674 4675 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4676 // affects the debug info in the PCM. 4677 if (getCodeGenOpts().DebugTypeExtRefs) 4678 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4679 4680 // Extend the signature with the enabled sanitizers, if at least one is 4681 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4682 SanitizerSet SanHash = LangOpts->Sanitize; 4683 SanHash.clear(getPPTransparentSanitizers()); 4684 if (!SanHash.empty()) 4685 HBuilder.add(SanHash.Mask); 4686 4687 llvm::MD5::MD5Result Result; 4688 HBuilder.getHasher().final(Result); 4689 uint64_t Hash = Result.high() ^ Result.low(); 4690 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4691 } 4692 4693 void CompilerInvocation::generateCC1CommandLine( 4694 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4695 llvm::Triple T(TargetOpts->Triple); 4696 4697 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4698 GenerateMigratorArgs(MigratorOpts, Args, SA); 4699 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4700 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4701 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4702 GenerateTargetArgs(*TargetOpts, Args, SA); 4703 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4704 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4705 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4706 &*LangOpts); 4707 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4708 CodeGenOpts); 4709 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4710 FrontendOpts.ProgramAction); 4711 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4712 } 4713 4714 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4715 // Set up string allocator. 4716 llvm::BumpPtrAllocator Alloc; 4717 llvm::StringSaver Strings(Alloc); 4718 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4719 4720 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4721 SmallVector<const char *, 32> Args{"-cc1"}; 4722 generateCC1CommandLine(Args, SA); 4723 4724 // Convert arguments to the return type. 4725 return std::vector<std::string>{Args.begin(), Args.end()}; 4726 } 4727 4728 void CompilerInvocation::resetNonModularOptions() { 4729 getLangOpts()->resetNonModularOptions(); 4730 getPreprocessorOpts().resetNonModularOptions(); 4731 } 4732 4733 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4734 getLangOpts()->ImplicitModules = false; 4735 getHeaderSearchOpts().ImplicitModuleMaps = false; 4736 getHeaderSearchOpts().ModuleCachePath.clear(); 4737 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4738 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4739 // The specific values we canonicalize to for pruning don't affect behaviour, 4740 /// so use the default values so they may be dropped from the command-line. 4741 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4742 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4743 } 4744 4745 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4746 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4747 DiagnosticsEngine &Diags) { 4748 return createVFSFromCompilerInvocation(CI, Diags, 4749 llvm::vfs::getRealFileSystem()); 4750 } 4751 4752 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4753 clang::createVFSFromCompilerInvocation( 4754 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4755 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4756 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4757 Diags, std::move(BaseFS)); 4758 } 4759 4760 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4761 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4762 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4763 if (VFSOverlayFiles.empty()) 4764 return BaseFS; 4765 4766 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4767 // earlier vfs files are on the bottom 4768 for (const auto &File : VFSOverlayFiles) { 4769 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4770 Result->getBufferForFile(File); 4771 if (!Buffer) { 4772 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4773 continue; 4774 } 4775 4776 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4777 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4778 /*DiagContext*/ nullptr, Result); 4779 if (!FS) { 4780 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4781 continue; 4782 } 4783 4784 Result = FS; 4785 } 4786 return Result; 4787 } 4788