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/STLExtras.h" 56 #include "llvm/ADT/SmallString.h" 57 #include "llvm/ADT/SmallVector.h" 58 #include "llvm/ADT/StringRef.h" 59 #include "llvm/ADT/StringSwitch.h" 60 #include "llvm/ADT/Triple.h" 61 #include "llvm/ADT/Twine.h" 62 #include "llvm/Config/llvm-config.h" 63 #include "llvm/IR/DebugInfoMetadata.h" 64 #include "llvm/Linker/Linker.h" 65 #include "llvm/MC/MCTargetOptions.h" 66 #include "llvm/Option/Arg.h" 67 #include "llvm/Option/ArgList.h" 68 #include "llvm/Option/OptSpecifier.h" 69 #include "llvm/Option/OptTable.h" 70 #include "llvm/Option/Option.h" 71 #include "llvm/ProfileData/InstrProfReader.h" 72 #include "llvm/Remarks/HotnessThresholdParser.h" 73 #include "llvm/Support/CodeGen.h" 74 #include "llvm/Support/Compiler.h" 75 #include "llvm/Support/Error.h" 76 #include "llvm/Support/ErrorHandling.h" 77 #include "llvm/Support/ErrorOr.h" 78 #include "llvm/Support/FileSystem.h" 79 #include "llvm/Support/HashBuilder.h" 80 #include "llvm/Support/Host.h" 81 #include "llvm/Support/MathExtras.h" 82 #include "llvm/Support/MemoryBuffer.h" 83 #include "llvm/Support/Path.h" 84 #include "llvm/Support/Process.h" 85 #include "llvm/Support/Regex.h" 86 #include "llvm/Support/VersionTuple.h" 87 #include "llvm/Support/VirtualFileSystem.h" 88 #include "llvm/Support/raw_ostream.h" 89 #include "llvm/Target/TargetOptions.h" 90 #include <algorithm> 91 #include <atomic> 92 #include <cassert> 93 #include <cstddef> 94 #include <cstring> 95 #include <ctime> 96 #include <fstream> 97 #include <limits> 98 #include <memory> 99 #include <optional> 100 #include <string> 101 #include <tuple> 102 #include <type_traits> 103 #include <utility> 104 #include <vector> 105 106 using namespace clang; 107 using namespace driver; 108 using namespace options; 109 using namespace llvm::opt; 110 111 //===----------------------------------------------------------------------===// 112 // Helpers. 113 //===----------------------------------------------------------------------===// 114 115 // Parse misexpect tolerance argument value. 116 // Valid option values are integers in the range [0, 100) 117 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 118 uint32_t Val; 119 if (Arg.getAsInteger(10, Val)) 120 return llvm::createStringError(llvm::inconvertibleErrorCode(), 121 "Not an integer: %s", Arg.data()); 122 return Val; 123 } 124 125 //===----------------------------------------------------------------------===// 126 // Initialization. 127 //===----------------------------------------------------------------------===// 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase() 130 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 131 DiagnosticOpts(new DiagnosticOptions()), 132 HeaderSearchOpts(new HeaderSearchOptions()), 133 PreprocessorOpts(new PreprocessorOptions()), 134 AnalyzerOpts(new AnalyzerOptions()) {} 135 136 CompilerInvocationRefBase::CompilerInvocationRefBase( 137 const CompilerInvocationRefBase &X) 138 : LangOpts(new LangOptions(*X.getLangOpts())), 139 TargetOpts(new TargetOptions(X.getTargetOpts())), 140 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 141 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 142 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 143 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 144 145 CompilerInvocationRefBase::CompilerInvocationRefBase( 146 CompilerInvocationRefBase &&X) = default; 147 148 CompilerInvocationRefBase & 149 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 150 LangOpts.swap(X.LangOpts); 151 TargetOpts.swap(X.TargetOpts); 152 DiagnosticOpts.swap(X.DiagnosticOpts); 153 HeaderSearchOpts.swap(X.HeaderSearchOpts); 154 PreprocessorOpts.swap(X.PreprocessorOpts); 155 AnalyzerOpts.swap(X.AnalyzerOpts); 156 return *this; 157 } 158 159 CompilerInvocationRefBase & 160 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 161 162 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 163 164 //===----------------------------------------------------------------------===// 165 // Normalizers 166 //===----------------------------------------------------------------------===// 167 168 #define SIMPLE_ENUM_VALUE_TABLE 169 #include "clang/Driver/Options.inc" 170 #undef SIMPLE_ENUM_VALUE_TABLE 171 172 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 173 unsigned TableIndex, 174 const ArgList &Args, 175 DiagnosticsEngine &Diags) { 176 if (Args.hasArg(Opt)) 177 return true; 178 return std::nullopt; 179 } 180 181 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 182 unsigned, 183 const ArgList &Args, 184 DiagnosticsEngine &) { 185 if (Args.hasArg(Opt)) 186 return false; 187 return std::nullopt; 188 } 189 190 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 191 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 192 /// unnecessary template instantiations and just ignore it with a variadic 193 /// argument. 194 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 195 const char *Spelling, 196 CompilerInvocation::StringAllocator, 197 Option::OptionClass, unsigned, /*T*/...) { 198 Args.push_back(Spelling); 199 } 200 201 template <typename T> static constexpr bool is_uint64_t_convertible() { 202 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 203 } 204 205 template <typename T, 206 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 207 static auto makeFlagToValueNormalizer(T Value) { 208 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 209 DiagnosticsEngine &) -> std::optional<T> { 210 if (Args.hasArg(Opt)) 211 return Value; 212 return std::nullopt; 213 }; 214 } 215 216 template <typename T, 217 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 218 static auto makeFlagToValueNormalizer(T Value) { 219 return makeFlagToValueNormalizer(uint64_t(Value)); 220 } 221 222 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 223 OptSpecifier OtherOpt) { 224 return [Value, OtherValue, 225 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 226 DiagnosticsEngine &) -> std::optional<bool> { 227 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 228 return A->getOption().matches(Opt) ? Value : OtherValue; 229 } 230 return std::nullopt; 231 }; 232 } 233 234 static auto makeBooleanOptionDenormalizer(bool Value) { 235 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 236 CompilerInvocation::StringAllocator, Option::OptionClass, 237 unsigned, bool KeyPath) { 238 if (KeyPath == Value) 239 Args.push_back(Spelling); 240 }; 241 } 242 243 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 244 const char *Spelling, 245 CompilerInvocation::StringAllocator SA, 246 Option::OptionClass OptClass, unsigned, 247 const Twine &Value) { 248 switch (OptClass) { 249 case Option::SeparateClass: 250 case Option::JoinedOrSeparateClass: 251 case Option::JoinedAndSeparateClass: 252 Args.push_back(Spelling); 253 Args.push_back(SA(Value)); 254 break; 255 case Option::JoinedClass: 256 case Option::CommaJoinedClass: 257 Args.push_back(SA(Twine(Spelling) + Value)); 258 break; 259 default: 260 llvm_unreachable("Cannot denormalize an option with option class " 261 "incompatible with string denormalization."); 262 } 263 } 264 265 template <typename T> 266 static void 267 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 268 CompilerInvocation::StringAllocator SA, 269 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 270 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 271 } 272 273 static std::optional<SimpleEnumValue> 274 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 275 for (int I = 0, E = Table.Size; I != E; ++I) 276 if (Name == Table.Table[I].Name) 277 return Table.Table[I]; 278 279 return std::nullopt; 280 } 281 282 static std::optional<SimpleEnumValue> 283 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 284 for (int I = 0, E = Table.Size; I != E; ++I) 285 if (Value == Table.Table[I].Value) 286 return Table.Table[I]; 287 288 return std::nullopt; 289 } 290 291 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 292 unsigned TableIndex, 293 const ArgList &Args, 294 DiagnosticsEngine &Diags) { 295 assert(TableIndex < SimpleEnumValueTablesSize); 296 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 297 298 auto *Arg = Args.getLastArg(Opt); 299 if (!Arg) 300 return std::nullopt; 301 302 StringRef ArgValue = Arg->getValue(); 303 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 304 return MaybeEnumVal->Value; 305 306 Diags.Report(diag::err_drv_invalid_value) 307 << Arg->getAsString(Args) << ArgValue; 308 return std::nullopt; 309 } 310 311 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, unsigned Value) { 316 assert(TableIndex < SimpleEnumValueTablesSize); 317 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 318 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 319 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 320 MaybeEnumVal->Name); 321 } else { 322 llvm_unreachable("The simple enum value was not correctly defined in " 323 "the tablegen option description"); 324 } 325 } 326 327 template <typename T> 328 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 329 const char *Spelling, 330 CompilerInvocation::StringAllocator SA, 331 Option::OptionClass OptClass, 332 unsigned TableIndex, T Value) { 333 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 334 static_cast<unsigned>(Value)); 335 } 336 337 static std::optional<std::string> normalizeString(OptSpecifier Opt, 338 int TableIndex, 339 const ArgList &Args, 340 DiagnosticsEngine &Diags) { 341 auto *Arg = Args.getLastArg(Opt); 342 if (!Arg) 343 return std::nullopt; 344 return std::string(Arg->getValue()); 345 } 346 347 template <typename IntTy> 348 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 349 const ArgList &Args, 350 DiagnosticsEngine &Diags) { 351 auto *Arg = Args.getLastArg(Opt); 352 if (!Arg) 353 return std::nullopt; 354 IntTy Res; 355 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 356 Diags.Report(diag::err_drv_invalid_int_value) 357 << Arg->getAsString(Args) << Arg->getValue(); 358 return std::nullopt; 359 } 360 return Res; 361 } 362 363 static std::optional<std::vector<std::string>> 364 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 365 DiagnosticsEngine &) { 366 return Args.getAllArgValues(Opt); 367 } 368 369 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 370 const char *Spelling, 371 CompilerInvocation::StringAllocator SA, 372 Option::OptionClass OptClass, 373 unsigned TableIndex, 374 const std::vector<std::string> &Values) { 375 switch (OptClass) { 376 case Option::CommaJoinedClass: { 377 std::string CommaJoinedValue; 378 if (!Values.empty()) { 379 CommaJoinedValue.append(Values.front()); 380 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 381 CommaJoinedValue.append(","); 382 CommaJoinedValue.append(Value); 383 } 384 } 385 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 386 TableIndex, CommaJoinedValue); 387 break; 388 } 389 case Option::JoinedClass: 390 case Option::SeparateClass: 391 case Option::JoinedOrSeparateClass: 392 for (const std::string &Value : Values) 393 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 394 break; 395 default: 396 llvm_unreachable("Cannot denormalize an option with option class " 397 "incompatible with string vector denormalization."); 398 } 399 } 400 401 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 402 int TableIndex, 403 const ArgList &Args, 404 DiagnosticsEngine &Diags) { 405 auto *Arg = Args.getLastArg(Opt); 406 if (!Arg) 407 return std::nullopt; 408 return llvm::Triple::normalize(Arg->getValue()); 409 } 410 411 template <typename T, typename U> 412 static T mergeForwardValue(T KeyPath, U Value) { 413 return static_cast<T>(Value); 414 } 415 416 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 417 return KeyPath | Value; 418 } 419 420 template <typename T> static T extractForwardValue(T KeyPath) { 421 return KeyPath; 422 } 423 424 template <typename T, typename U, U Value> 425 static T extractMaskValue(T KeyPath) { 426 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 427 } 428 429 #define PARSE_OPTION_WITH_MARSHALLING( \ 430 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 431 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 432 if ((FLAGS)&options::CC1Option) { \ 433 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 434 if (IMPLIED_CHECK) \ 435 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 436 if (SHOULD_PARSE) \ 437 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 438 KEYPATH = \ 439 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 440 } 441 442 // Capture the extracted value as a lambda argument to avoid potential issues 443 // with lifetime extension of the reference. 444 #define GENERATE_OPTION_WITH_MARSHALLING( \ 445 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 446 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 447 TABLE_INDEX) \ 448 if ((FLAGS)&options::CC1Option) { \ 449 [&](const auto &Extracted) { \ 450 if (ALWAYS_EMIT || \ 451 (Extracted != \ 452 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 453 : (DEFAULT_VALUE)))) \ 454 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 455 TABLE_INDEX, Extracted); \ 456 }(EXTRACTOR(KEYPATH)); \ 457 } 458 459 static StringRef GetInputKindName(InputKind IK); 460 461 static bool FixupInvocation(CompilerInvocation &Invocation, 462 DiagnosticsEngine &Diags, const ArgList &Args, 463 InputKind IK) { 464 unsigned NumErrorsBefore = Diags.getNumErrors(); 465 466 LangOptions &LangOpts = *Invocation.getLangOpts(); 467 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 468 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 469 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 470 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 471 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 472 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 473 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 474 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 475 if (FrontendOpts.ShowStats) 476 CodeGenOpts.ClearASTBeforeBackend = false; 477 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 478 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 479 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 480 LangOpts.CurrentModule = LangOpts.ModuleName; 481 482 llvm::Triple T(TargetOpts.Triple); 483 llvm::Triple::ArchType Arch = T.getArch(); 484 485 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 486 487 if (LangOpts.getExceptionHandling() != 488 LangOptions::ExceptionHandlingKind::None && 489 T.isWindowsMSVCEnvironment()) 490 Diags.Report(diag::err_fe_invalid_exception_model) 491 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 492 493 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 494 Diags.Report(diag::warn_c_kext); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 514 Diags.Report(diag::err_drv_argument_not_allowed_with) 515 << "-hlsl-entry" << GetInputKindName(IK); 516 517 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 520 521 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 522 Diags.Report(diag::warn_ignored_hip_only_option) 523 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 524 525 // When these options are used, the compiler is allowed to apply 526 // optimizations that may affect the final result. For example 527 // (x+y)+z is transformed to x+(y+z) but may not give the same 528 // final result; it's not value safe. 529 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 530 // or NaN. Final result may then differ. An error is issued when the eval 531 // method is set with one of these options. 532 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 533 if (LangOpts.ApproxFunc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 535 if (LangOpts.AllowFPReassoc) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 537 if (LangOpts.AllowRecip) 538 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 539 } 540 541 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 542 // This option should be deprecated for CL > 1.0 because 543 // this option was added for compatibility with OpenCL 1.0. 544 if (Args.getLastArg(OPT_cl_strict_aliasing) && 545 (LangOpts.getOpenCLCompatibleVersion() > 100)) 546 Diags.Report(diag::warn_option_invalid_ocl_version) 547 << LangOpts.getOpenCLVersionString() 548 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 549 550 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 551 auto DefaultCC = LangOpts.getDefaultCallingConv(); 552 553 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 554 DefaultCC == LangOptions::DCC_StdCall) && 555 Arch != llvm::Triple::x86; 556 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 557 DefaultCC == LangOptions::DCC_RegCall) && 558 !T.isX86(); 559 if (emitError) 560 Diags.Report(diag::err_drv_argument_not_allowed_with) 561 << A->getSpelling() << T.getTriple(); 562 } 563 564 return Diags.getNumErrors() == NumErrorsBefore; 565 } 566 567 //===----------------------------------------------------------------------===// 568 // Deserialization (from args) 569 //===----------------------------------------------------------------------===// 570 571 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 572 DiagnosticsEngine &Diags) { 573 unsigned DefaultOpt = llvm::CodeGenOpt::None; 574 if ((IK.getLanguage() == Language::OpenCL || 575 IK.getLanguage() == Language::OpenCLCXX) && 576 !Args.hasArg(OPT_cl_opt_disable)) 577 DefaultOpt = llvm::CodeGenOpt::Default; 578 579 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 580 if (A->getOption().matches(options::OPT_O0)) 581 return llvm::CodeGenOpt::None; 582 583 if (A->getOption().matches(options::OPT_Ofast)) 584 return llvm::CodeGenOpt::Aggressive; 585 586 assert(A->getOption().matches(options::OPT_O)); 587 588 StringRef S(A->getValue()); 589 if (S == "s" || S == "z") 590 return llvm::CodeGenOpt::Default; 591 592 if (S == "g") 593 return llvm::CodeGenOpt::Less; 594 595 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 596 } 597 598 return DefaultOpt; 599 } 600 601 static unsigned getOptimizationLevelSize(ArgList &Args) { 602 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 603 if (A->getOption().matches(options::OPT_O)) { 604 switch (A->getValue()[0]) { 605 default: 606 return 0; 607 case 's': 608 return 1; 609 case 'z': 610 return 2; 611 } 612 } 613 } 614 return 0; 615 } 616 617 static void GenerateArg(SmallVectorImpl<const char *> &Args, 618 llvm::opt::OptSpecifier OptSpecifier, 619 CompilerInvocation::StringAllocator SA) { 620 Option Opt = getDriverOptTable().getOption(OptSpecifier); 621 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 622 Option::OptionClass::FlagClass, 0); 623 } 624 625 static void GenerateArg(SmallVectorImpl<const char *> &Args, 626 llvm::opt::OptSpecifier OptSpecifier, 627 const Twine &Value, 628 CompilerInvocation::StringAllocator SA) { 629 Option Opt = getDriverOptTable().getOption(OptSpecifier); 630 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 631 Opt.getKind(), 0, Value); 632 } 633 634 // Parse command line arguments into CompilerInvocation. 635 using ParseFn = 636 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 637 DiagnosticsEngine &, const char *)>; 638 639 // Generate command line arguments from CompilerInvocation. 640 using GenerateFn = llvm::function_ref<void( 641 CompilerInvocation &, SmallVectorImpl<const char *> &, 642 CompilerInvocation::StringAllocator)>; 643 644 // May perform round-trip of command line arguments. By default, the round-trip 645 // is enabled in assert builds. This can be overwritten at run-time via the 646 // "-round-trip-args" and "-no-round-trip-args" command line flags. 647 // During round-trip, the command line arguments are parsed into a dummy 648 // instance of CompilerInvocation which is used to generate the command line 649 // arguments again. The real CompilerInvocation instance is then created by 650 // parsing the generated arguments, not the original ones. 651 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 652 CompilerInvocation &RealInvocation, 653 CompilerInvocation &DummyInvocation, 654 ArrayRef<const char *> CommandLineArgs, 655 DiagnosticsEngine &Diags, const char *Argv0) { 656 #ifndef NDEBUG 657 bool DoRoundTripDefault = true; 658 #else 659 bool DoRoundTripDefault = false; 660 #endif 661 662 bool DoRoundTrip = DoRoundTripDefault; 663 for (const auto *Arg : CommandLineArgs) { 664 if (Arg == StringRef("-round-trip-args")) 665 DoRoundTrip = true; 666 if (Arg == StringRef("-no-round-trip-args")) 667 DoRoundTrip = false; 668 } 669 670 // If round-trip was not requested, simply run the parser with the real 671 // invocation diagnostics. 672 if (!DoRoundTrip) 673 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 674 675 // Serializes quoted (and potentially escaped) arguments. 676 auto SerializeArgs = [](ArrayRef<const char *> Args) { 677 std::string Buffer; 678 llvm::raw_string_ostream OS(Buffer); 679 for (const char *Arg : Args) { 680 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 681 OS << ' '; 682 } 683 OS.flush(); 684 return Buffer; 685 }; 686 687 // Setup a dummy DiagnosticsEngine. 688 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 689 DummyDiags.setClient(new TextDiagnosticBuffer()); 690 691 // Run the first parse on the original arguments with the dummy invocation and 692 // diagnostics. 693 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 694 DummyDiags.getNumWarnings() != 0) { 695 // If the first parse did not succeed, it must be user mistake (invalid 696 // command line arguments). We won't be able to generate arguments that 697 // would reproduce the same result. Let's fail again with the real 698 // invocation and diagnostics, so all side-effects of parsing are visible. 699 unsigned NumWarningsBefore = Diags.getNumWarnings(); 700 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 701 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 702 return Success; 703 704 // Parse with original options and diagnostics succeeded even though it 705 // shouldn't have. Something is off. 706 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 707 Diags.Report(diag::note_cc1_round_trip_original) 708 << SerializeArgs(CommandLineArgs); 709 return false; 710 } 711 712 // Setup string allocator. 713 llvm::BumpPtrAllocator Alloc; 714 llvm::StringSaver StringPool(Alloc); 715 auto SA = [&StringPool](const Twine &Arg) { 716 return StringPool.save(Arg).data(); 717 }; 718 719 // Generate arguments from the dummy invocation. If Generate is the 720 // inverse of Parse, the newly generated arguments must have the same 721 // semantics as the original. 722 SmallVector<const char *> GeneratedArgs1; 723 Generate(DummyInvocation, GeneratedArgs1, SA); 724 725 // Run the second parse, now on the generated arguments, and with the real 726 // invocation and diagnostics. The result is what we will end up using for the 727 // rest of compilation, so if Generate is not inverse of Parse, something down 728 // the line will break. 729 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 730 731 // The first parse on original arguments succeeded, but second parse of 732 // generated arguments failed. Something must be wrong with the generator. 733 if (!Success2) { 734 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 735 Diags.Report(diag::note_cc1_round_trip_generated) 736 << 1 << SerializeArgs(GeneratedArgs1); 737 return false; 738 } 739 740 // Generate arguments again, this time from the options we will end up using 741 // for the rest of the compilation. 742 SmallVector<const char *> GeneratedArgs2; 743 Generate(RealInvocation, GeneratedArgs2, SA); 744 745 // Compares two lists of generated arguments. 746 auto Equal = [](const ArrayRef<const char *> A, 747 const ArrayRef<const char *> B) { 748 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 749 [](const char *AElem, const char *BElem) { 750 return StringRef(AElem) == StringRef(BElem); 751 }); 752 }; 753 754 // If we generated different arguments from what we assume are two 755 // semantically equivalent CompilerInvocations, the Generate function may 756 // be non-deterministic. 757 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 758 Diags.Report(diag::err_cc1_round_trip_mismatch); 759 Diags.Report(diag::note_cc1_round_trip_generated) 760 << 1 << SerializeArgs(GeneratedArgs1); 761 Diags.Report(diag::note_cc1_round_trip_generated) 762 << 2 << SerializeArgs(GeneratedArgs2); 763 return false; 764 } 765 766 Diags.Report(diag::remark_cc1_round_trip_generated) 767 << 1 << SerializeArgs(GeneratedArgs1); 768 Diags.Report(diag::remark_cc1_round_trip_generated) 769 << 2 << SerializeArgs(GeneratedArgs2); 770 771 return Success2; 772 } 773 774 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 775 OptSpecifier GroupWithValue, 776 std::vector<std::string> &Diagnostics) { 777 for (auto *A : Args.filtered(Group)) { 778 if (A->getOption().getKind() == Option::FlagClass) { 779 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 780 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 781 Diagnostics.push_back( 782 std::string(A->getOption().getName().drop_front(1))); 783 } else if (A->getOption().matches(GroupWithValue)) { 784 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 785 // group. Add only the group name to the diagnostics. 786 Diagnostics.push_back( 787 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 788 } else { 789 // Otherwise, add its value (for OPT_W_Joined and similar). 790 Diagnostics.push_back(A->getValue()); 791 } 792 } 793 } 794 795 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 796 // it won't verify the input. 797 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 798 DiagnosticsEngine *Diags); 799 800 static void getAllNoBuiltinFuncValues(ArgList &Args, 801 std::vector<std::string> &Funcs) { 802 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 803 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 804 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 805 } 806 807 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 808 SmallVectorImpl<const char *> &Args, 809 CompilerInvocation::StringAllocator SA) { 810 const AnalyzerOptions *AnalyzerOpts = &Opts; 811 812 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 813 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 814 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 815 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 816 MERGER, EXTRACTOR, TABLE_INDEX) \ 817 GENERATE_OPTION_WITH_MARSHALLING( \ 818 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 819 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 820 #include "clang/Driver/Options.inc" 821 #undef ANALYZER_OPTION_WITH_MARSHALLING 822 823 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 824 switch (Opts.AnalysisConstraintsOpt) { 825 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 826 case NAME##Model: \ 827 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 828 break; 829 #include "clang/StaticAnalyzer/Core/Analyses.def" 830 default: 831 llvm_unreachable("Tried to generate unknown analysis constraint."); 832 } 833 } 834 835 if (Opts.AnalysisDiagOpt != PD_HTML) { 836 switch (Opts.AnalysisDiagOpt) { 837 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 838 case PD_##NAME: \ 839 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 840 break; 841 #include "clang/StaticAnalyzer/Core/Analyses.def" 842 default: 843 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 844 } 845 } 846 847 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 848 switch (Opts.AnalysisPurgeOpt) { 849 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 850 case NAME: \ 851 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 852 break; 853 #include "clang/StaticAnalyzer/Core/Analyses.def" 854 default: 855 llvm_unreachable("Tried to generate unknown analysis purge mode."); 856 } 857 } 858 859 if (Opts.InliningMode != NoRedundancy) { 860 switch (Opts.InliningMode) { 861 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 862 case NAME: \ 863 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 864 break; 865 #include "clang/StaticAnalyzer/Core/Analyses.def" 866 default: 867 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 868 } 869 } 870 871 for (const auto &CP : Opts.CheckersAndPackages) { 872 OptSpecifier Opt = 873 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 874 GenerateArg(Args, Opt, CP.first, SA); 875 } 876 877 AnalyzerOptions ConfigOpts; 878 parseAnalyzerConfigs(ConfigOpts, nullptr); 879 880 for (const auto &C : Opts.Config) { 881 // Don't generate anything that came from parseAnalyzerConfigs. It would be 882 // redundant and may not be valid on the command line. 883 auto Entry = ConfigOpts.Config.find(C.getKey()); 884 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 885 continue; 886 887 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 888 } 889 890 // Nothing to generate for FullCompilerInvocation. 891 } 892 893 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 894 DiagnosticsEngine &Diags) { 895 unsigned NumErrorsBefore = Diags.getNumErrors(); 896 897 AnalyzerOptions *AnalyzerOpts = &Opts; 898 899 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 900 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 901 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 902 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 903 MERGER, EXTRACTOR, TABLE_INDEX) \ 904 PARSE_OPTION_WITH_MARSHALLING( \ 905 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 906 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 907 #include "clang/Driver/Options.inc" 908 #undef ANALYZER_OPTION_WITH_MARSHALLING 909 910 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 911 StringRef Name = A->getValue(); 912 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 913 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 914 .Case(CMDFLAG, NAME##Model) 915 #include "clang/StaticAnalyzer/Core/Analyses.def" 916 .Default(NumConstraints); 917 if (Value == NumConstraints) { 918 Diags.Report(diag::err_drv_invalid_value) 919 << A->getAsString(Args) << Name; 920 } else { 921 #ifndef LLVM_WITH_Z3 922 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 923 Diags.Report(diag::err_analyzer_not_built_with_z3); 924 } 925 #endif // LLVM_WITH_Z3 926 Opts.AnalysisConstraintsOpt = Value; 927 } 928 } 929 930 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 931 StringRef Name = A->getValue(); 932 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 933 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 934 .Case(CMDFLAG, PD_##NAME) 935 #include "clang/StaticAnalyzer/Core/Analyses.def" 936 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 937 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 938 Diags.Report(diag::err_drv_invalid_value) 939 << A->getAsString(Args) << Name; 940 } else { 941 Opts.AnalysisDiagOpt = Value; 942 } 943 } 944 945 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 946 StringRef Name = A->getValue(); 947 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 948 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 949 .Case(CMDFLAG, NAME) 950 #include "clang/StaticAnalyzer/Core/Analyses.def" 951 .Default(NumPurgeModes); 952 if (Value == NumPurgeModes) { 953 Diags.Report(diag::err_drv_invalid_value) 954 << A->getAsString(Args) << Name; 955 } else { 956 Opts.AnalysisPurgeOpt = Value; 957 } 958 } 959 960 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 961 StringRef Name = A->getValue(); 962 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 963 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 964 .Case(CMDFLAG, NAME) 965 #include "clang/StaticAnalyzer/Core/Analyses.def" 966 .Default(NumInliningModes); 967 if (Value == NumInliningModes) { 968 Diags.Report(diag::err_drv_invalid_value) 969 << A->getAsString(Args) << Name; 970 } else { 971 Opts.InliningMode = Value; 972 } 973 } 974 975 Opts.CheckersAndPackages.clear(); 976 for (const Arg *A : 977 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 978 A->claim(); 979 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 980 // We can have a list of comma separated checker names, e.g: 981 // '-analyzer-checker=cocoa,unix' 982 StringRef CheckerAndPackageList = A->getValue(); 983 SmallVector<StringRef, 16> CheckersAndPackages; 984 CheckerAndPackageList.split(CheckersAndPackages, ","); 985 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 986 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 987 IsEnabled); 988 } 989 990 // Go through the analyzer configuration options. 991 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 992 993 // We can have a list of comma separated config names, e.g: 994 // '-analyzer-config key1=val1,key2=val2' 995 StringRef configList = A->getValue(); 996 SmallVector<StringRef, 4> configVals; 997 configList.split(configVals, ","); 998 for (const auto &configVal : configVals) { 999 StringRef key, val; 1000 std::tie(key, val) = configVal.split("="); 1001 if (val.empty()) { 1002 Diags.Report(SourceLocation(), 1003 diag::err_analyzer_config_no_value) << configVal; 1004 break; 1005 } 1006 if (val.contains('=')) { 1007 Diags.Report(SourceLocation(), 1008 diag::err_analyzer_config_multiple_values) 1009 << configVal; 1010 break; 1011 } 1012 1013 // TODO: Check checker options too, possibly in CheckerRegistry. 1014 // Leave unknown non-checker configs unclaimed. 1015 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1016 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1017 Diags.Report(diag::err_analyzer_config_unknown) << key; 1018 continue; 1019 } 1020 1021 A->claim(); 1022 Opts.Config[key] = std::string(val); 1023 1024 // FIXME: Remove this hunk after clang-17 released. 1025 constexpr auto SingleFAM = 1026 "consider-single-element-arrays-as-flexible-array-members"; 1027 if (key == SingleFAM) { 1028 Diags.Report(diag::warn_analyzer_deprecated_option_with_alternative) 1029 << SingleFAM << "clang-17" 1030 << "-fstrict-flex-arrays=<N>"; 1031 } 1032 } 1033 } 1034 1035 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1036 parseAnalyzerConfigs(Opts, &Diags); 1037 else 1038 parseAnalyzerConfigs(Opts, nullptr); 1039 1040 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1041 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1042 if (i != 0) 1043 os << " "; 1044 os << Args.getArgString(i); 1045 } 1046 os.flush(); 1047 1048 return Diags.getNumErrors() == NumErrorsBefore; 1049 } 1050 1051 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1052 StringRef OptionName, StringRef DefaultVal) { 1053 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1054 } 1055 1056 static void initOption(AnalyzerOptions::ConfigTable &Config, 1057 DiagnosticsEngine *Diags, 1058 StringRef &OptionField, StringRef Name, 1059 StringRef DefaultVal) { 1060 // String options may be known to invalid (e.g. if the expected string is a 1061 // file name, but the file does not exist), those will have to be checked in 1062 // parseConfigs. 1063 OptionField = getStringOption(Config, Name, DefaultVal); 1064 } 1065 1066 static void initOption(AnalyzerOptions::ConfigTable &Config, 1067 DiagnosticsEngine *Diags, 1068 bool &OptionField, StringRef Name, bool DefaultVal) { 1069 auto PossiblyInvalidVal = 1070 llvm::StringSwitch<std::optional<bool>>( 1071 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1072 .Case("true", true) 1073 .Case("false", false) 1074 .Default(std::nullopt); 1075 1076 if (!PossiblyInvalidVal) { 1077 if (Diags) 1078 Diags->Report(diag::err_analyzer_config_invalid_input) 1079 << Name << "a boolean"; 1080 else 1081 OptionField = DefaultVal; 1082 } else 1083 OptionField = *PossiblyInvalidVal; 1084 } 1085 1086 static void initOption(AnalyzerOptions::ConfigTable &Config, 1087 DiagnosticsEngine *Diags, 1088 unsigned &OptionField, StringRef Name, 1089 unsigned DefaultVal) { 1090 1091 OptionField = DefaultVal; 1092 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1093 .getAsInteger(0, OptionField); 1094 if (Diags && HasFailed) 1095 Diags->Report(diag::err_analyzer_config_invalid_input) 1096 << Name << "an unsigned"; 1097 } 1098 1099 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1100 DiagnosticsEngine *Diags) { 1101 // TODO: There's no need to store the entire configtable, it'd be plenty 1102 // enough to store checker options. 1103 1104 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1105 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1106 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1107 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1108 1109 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1110 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1111 1112 #define ANALYZER_OPTION(...) 1113 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1114 SHALLOW_VAL, DEEP_VAL) \ 1115 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1116 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1117 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1118 1119 // At this point, AnalyzerOptions is configured. Let's validate some options. 1120 1121 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1122 // The current approach only validates the registered checkers which does not 1123 // contain the runtime enabled checkers and optimally we would validate both. 1124 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1125 std::vector<StringRef> Checkers = 1126 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1127 std::vector<StringRef> Packages = 1128 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1129 1130 SmallVector<StringRef, 16> CheckersAndPackages; 1131 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1132 1133 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1134 if (Diags) { 1135 bool IsChecker = CheckerOrPackage.contains('.'); 1136 bool IsValidName = IsChecker 1137 ? llvm::is_contained(Checkers, CheckerOrPackage) 1138 : llvm::is_contained(Packages, CheckerOrPackage); 1139 1140 if (!IsValidName) 1141 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1142 << CheckerOrPackage; 1143 } 1144 1145 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1146 } 1147 } 1148 1149 if (!Diags) 1150 return; 1151 1152 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1153 Diags->Report(diag::err_analyzer_config_invalid_input) 1154 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1155 1156 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1157 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1158 << "a filename"; 1159 1160 if (!AnOpts.ModelPath.empty() && 1161 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1162 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1163 << "a filename"; 1164 } 1165 1166 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1167 static void 1168 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1169 CompilerInvocation::StringAllocator SA, 1170 OptSpecifier OptEQ, StringRef Name, 1171 const CodeGenOptions::OptRemark &Remark) { 1172 if (Remark.hasValidPattern()) { 1173 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1174 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1175 GenerateArg(Args, OPT_R_Joined, Name, SA); 1176 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1177 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1178 } 1179 } 1180 1181 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1182 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1183 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1184 static CodeGenOptions::OptRemark 1185 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1186 OptSpecifier OptEQ, StringRef Name) { 1187 CodeGenOptions::OptRemark Result; 1188 1189 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1190 StringRef Pattern) { 1191 Result.Pattern = Pattern.str(); 1192 1193 std::string RegexError; 1194 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1195 if (!Result.Regex->isValid(RegexError)) { 1196 Diags.Report(diag::err_drv_optimization_remark_pattern) 1197 << RegexError << A->getAsString(Args); 1198 return false; 1199 } 1200 1201 return true; 1202 }; 1203 1204 for (Arg *A : Args) { 1205 if (A->getOption().matches(OPT_R_Joined)) { 1206 StringRef Value = A->getValue(); 1207 1208 if (Value == Name) 1209 Result.Kind = CodeGenOptions::RK_Enabled; 1210 else if (Value == "everything") 1211 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1212 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1213 Result.Kind = CodeGenOptions::RK_Disabled; 1214 else if (Value == "no-everything") 1215 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1216 else 1217 continue; 1218 1219 if (Result.Kind == CodeGenOptions::RK_Disabled || 1220 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1221 Result.Pattern = ""; 1222 Result.Regex = nullptr; 1223 } else { 1224 InitializeResultPattern(A, ".*"); 1225 } 1226 } else if (A->getOption().matches(OptEQ)) { 1227 Result.Kind = CodeGenOptions::RK_WithPattern; 1228 if (!InitializeResultPattern(A, A->getValue())) 1229 return CodeGenOptions::OptRemark(); 1230 } 1231 } 1232 1233 return Result; 1234 } 1235 1236 static bool parseDiagnosticLevelMask(StringRef FlagName, 1237 const std::vector<std::string> &Levels, 1238 DiagnosticsEngine &Diags, 1239 DiagnosticLevelMask &M) { 1240 bool Success = true; 1241 for (const auto &Level : Levels) { 1242 DiagnosticLevelMask const PM = 1243 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1244 .Case("note", DiagnosticLevelMask::Note) 1245 .Case("remark", DiagnosticLevelMask::Remark) 1246 .Case("warning", DiagnosticLevelMask::Warning) 1247 .Case("error", DiagnosticLevelMask::Error) 1248 .Default(DiagnosticLevelMask::None); 1249 if (PM == DiagnosticLevelMask::None) { 1250 Success = false; 1251 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1252 } 1253 M = M | PM; 1254 } 1255 return Success; 1256 } 1257 1258 static void parseSanitizerKinds(StringRef FlagName, 1259 const std::vector<std::string> &Sanitizers, 1260 DiagnosticsEngine &Diags, SanitizerSet &S) { 1261 for (const auto &Sanitizer : Sanitizers) { 1262 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1263 if (K == SanitizerMask()) 1264 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1265 else 1266 S.set(K, true); 1267 } 1268 } 1269 1270 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1271 SmallVector<StringRef, 4> Values; 1272 serializeSanitizerSet(S, Values); 1273 return Values; 1274 } 1275 1276 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1277 ArgList &Args, DiagnosticsEngine &D, 1278 XRayInstrSet &S) { 1279 llvm::SmallVector<StringRef, 2> BundleParts; 1280 llvm::SplitString(Bundle, BundleParts, ","); 1281 for (const auto &B : BundleParts) { 1282 auto Mask = parseXRayInstrValue(B); 1283 if (Mask == XRayInstrKind::None) 1284 if (B != "none") 1285 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1286 else 1287 S.Mask = Mask; 1288 else if (Mask == XRayInstrKind::All) 1289 S.Mask = Mask; 1290 else 1291 S.set(Mask, true); 1292 } 1293 } 1294 1295 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1296 llvm::SmallVector<StringRef, 2> BundleParts; 1297 serializeXRayInstrValue(S, BundleParts); 1298 std::string Buffer; 1299 llvm::raw_string_ostream OS(Buffer); 1300 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1301 return Buffer; 1302 } 1303 1304 // Set the profile kind using fprofile-instrument-use-path. 1305 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1306 const Twine &ProfileName, 1307 llvm::vfs::FileSystem &FS, 1308 DiagnosticsEngine &Diags) { 1309 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1310 if (auto E = ReaderOrErr.takeError()) { 1311 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1312 "Error in reading profile %0: %1"); 1313 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1314 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1315 }); 1316 return; 1317 } 1318 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1319 std::move(ReaderOrErr.get()); 1320 // Currently memprof profiles are only added at the IR level. Mark the profile 1321 // type as IR in that case as well and the subsequent matching needs to detect 1322 // which is available (might be one or both). 1323 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1324 if (PGOReader->hasCSIRLevelProfile()) 1325 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1326 else 1327 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1328 } else 1329 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1330 } 1331 1332 void CompilerInvocation::GenerateCodeGenArgs( 1333 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1334 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1335 const LangOptions *LangOpts) { 1336 const CodeGenOptions &CodeGenOpts = Opts; 1337 1338 if (Opts.OptimizationLevel == 0) 1339 GenerateArg(Args, OPT_O0, SA); 1340 else 1341 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1342 1343 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1344 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1345 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1346 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1347 MERGER, EXTRACTOR, TABLE_INDEX) \ 1348 GENERATE_OPTION_WITH_MARSHALLING( \ 1349 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1350 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1351 #include "clang/Driver/Options.inc" 1352 #undef CODEGEN_OPTION_WITH_MARSHALLING 1353 1354 if (Opts.OptimizationLevel > 0) { 1355 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1356 GenerateArg(Args, OPT_finline_functions, SA); 1357 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1358 GenerateArg(Args, OPT_finline_hint_functions, SA); 1359 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1360 GenerateArg(Args, OPT_fno_inline, SA); 1361 } 1362 1363 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1364 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1365 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1366 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1367 1368 std::optional<StringRef> DebugInfoVal; 1369 switch (Opts.DebugInfo) { 1370 case codegenoptions::DebugLineTablesOnly: 1371 DebugInfoVal = "line-tables-only"; 1372 break; 1373 case codegenoptions::DebugDirectivesOnly: 1374 DebugInfoVal = "line-directives-only"; 1375 break; 1376 case codegenoptions::DebugInfoConstructor: 1377 DebugInfoVal = "constructor"; 1378 break; 1379 case codegenoptions::LimitedDebugInfo: 1380 DebugInfoVal = "limited"; 1381 break; 1382 case codegenoptions::FullDebugInfo: 1383 DebugInfoVal = "standalone"; 1384 break; 1385 case codegenoptions::UnusedTypeInfo: 1386 DebugInfoVal = "unused-types"; 1387 break; 1388 case codegenoptions::NoDebugInfo: // default value 1389 DebugInfoVal = std::nullopt; 1390 break; 1391 case codegenoptions::LocTrackingOnly: // implied value 1392 DebugInfoVal = std::nullopt; 1393 break; 1394 } 1395 if (DebugInfoVal) 1396 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1397 1398 for (const auto &Prefix : Opts.DebugPrefixMap) 1399 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1400 Prefix.first + "=" + Prefix.second, SA); 1401 1402 for (const auto &Prefix : Opts.CoveragePrefixMap) 1403 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1404 Prefix.first + "=" + Prefix.second, SA); 1405 1406 if (Opts.NewStructPathTBAA) 1407 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1408 1409 if (Opts.OptimizeSize == 1) 1410 GenerateArg(Args, OPT_O, "s", SA); 1411 else if (Opts.OptimizeSize == 2) 1412 GenerateArg(Args, OPT_O, "z", SA); 1413 1414 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1415 // -ffreestanding. We'll consider that when generating them. 1416 1417 // NoBuiltinFuncs are generated by LangOptions. 1418 1419 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1420 GenerateArg(Args, OPT_funroll_loops, SA); 1421 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1422 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1423 1424 if (!Opts.BinutilsVersion.empty()) 1425 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1426 1427 if (Opts.DebugNameTable == 1428 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1429 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1430 else if (Opts.DebugNameTable == 1431 static_cast<unsigned>( 1432 llvm::DICompileUnit::DebugNameTableKind::Default)) 1433 GenerateArg(Args, OPT_gpubnames, SA); 1434 1435 auto TNK = Opts.getDebugSimpleTemplateNames(); 1436 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1437 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1438 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1439 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1440 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1441 } 1442 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1443 // it or PGOUseInstrumentor. 1444 1445 if (Opts.TimePasses) { 1446 if (Opts.TimePassesPerRun) 1447 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1448 else 1449 GenerateArg(Args, OPT_ftime_report, SA); 1450 } 1451 1452 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1453 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1454 1455 if (Opts.PrepareForThinLTO) 1456 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1457 1458 if (!Opts.ThinLTOIndexFile.empty()) 1459 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1460 1461 if (Opts.SaveTempsFilePrefix == OutputFile) 1462 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1463 1464 StringRef MemProfileBasename("memprof.profraw"); 1465 if (!Opts.MemoryProfileOutput.empty()) { 1466 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1467 GenerateArg(Args, OPT_fmemory_profile, SA); 1468 } else { 1469 size_t ArgLength = 1470 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1471 GenerateArg(Args, OPT_fmemory_profile_EQ, 1472 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1473 } 1474 } 1475 1476 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1477 GenerateArg(Args, OPT_coverage_version_EQ, 1478 StringRef(Opts.CoverageVersion, 4), SA); 1479 1480 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1481 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1482 // won't be generated.) 1483 1484 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1485 std::string InstrBundle = 1486 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1487 if (!InstrBundle.empty()) 1488 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1489 } 1490 1491 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1492 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1493 else if (Opts.CFProtectionReturn) 1494 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1495 else if (Opts.CFProtectionBranch) 1496 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1497 1498 if (Opts.FunctionReturnThunks) 1499 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1500 1501 for (const auto &F : Opts.LinkBitcodeFiles) { 1502 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1503 F.PropagateAttrs && F.Internalize; 1504 GenerateArg(Args, 1505 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1506 F.Filename, SA); 1507 } 1508 1509 GenerateArg( 1510 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1511 1512 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1513 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1514 1515 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1516 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1517 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1518 SA); 1519 1520 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1521 OptSpecifier Opt = 1522 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1523 GenerateArg(Args, Opt, SA); 1524 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1525 OptSpecifier Opt = 1526 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1527 GenerateArg(Args, Opt, SA); 1528 } 1529 1530 if (Opts.EnableAIXExtendedAltivecABI) 1531 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1532 1533 if (!Opts.OptRecordPasses.empty()) 1534 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1535 1536 if (!Opts.OptRecordFormat.empty()) 1537 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1538 1539 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1540 Opts.OptimizationRemark); 1541 1542 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1543 Opts.OptimizationRemarkMissed); 1544 1545 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1546 Opts.OptimizationRemarkAnalysis); 1547 1548 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1549 Opts.DiagnosticsHotnessThreshold 1550 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1551 : "auto", 1552 SA); 1553 1554 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1555 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1556 1557 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1558 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1559 1560 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1561 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1562 1563 if (!Opts.EmitVersionIdentMetadata) 1564 GenerateArg(Args, OPT_Qn, SA); 1565 1566 switch (Opts.FiniteLoops) { 1567 case CodeGenOptions::FiniteLoopsKind::Language: 1568 break; 1569 case CodeGenOptions::FiniteLoopsKind::Always: 1570 GenerateArg(Args, OPT_ffinite_loops, SA); 1571 break; 1572 case CodeGenOptions::FiniteLoopsKind::Never: 1573 GenerateArg(Args, OPT_fno_finite_loops, SA); 1574 break; 1575 } 1576 } 1577 1578 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1579 InputKind IK, 1580 DiagnosticsEngine &Diags, 1581 const llvm::Triple &T, 1582 const std::string &OutputFile, 1583 const LangOptions &LangOptsRef) { 1584 unsigned NumErrorsBefore = Diags.getNumErrors(); 1585 1586 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1587 // TODO: This could be done in Driver 1588 unsigned MaxOptLevel = 3; 1589 if (OptimizationLevel > MaxOptLevel) { 1590 // If the optimization level is not supported, fall back on the default 1591 // optimization 1592 Diags.Report(diag::warn_drv_optimization_value) 1593 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1594 OptimizationLevel = MaxOptLevel; 1595 } 1596 Opts.OptimizationLevel = OptimizationLevel; 1597 1598 // The key paths of codegen options defined in Options.td start with 1599 // "CodeGenOpts.". Let's provide the expected variable name and type. 1600 CodeGenOptions &CodeGenOpts = Opts; 1601 // Some codegen options depend on language options. Let's provide the expected 1602 // variable name and type. 1603 const LangOptions *LangOpts = &LangOptsRef; 1604 1605 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1606 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1607 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1608 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1609 MERGER, EXTRACTOR, TABLE_INDEX) \ 1610 PARSE_OPTION_WITH_MARSHALLING( \ 1611 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1612 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1613 #include "clang/Driver/Options.inc" 1614 #undef CODEGEN_OPTION_WITH_MARSHALLING 1615 1616 // At O0 we want to fully disable inlining outside of cases marked with 1617 // 'alwaysinline' that are required for correctness. 1618 if (Opts.OptimizationLevel == 0) { 1619 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1620 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1621 options::OPT_finline_hint_functions, 1622 options::OPT_fno_inline_functions, 1623 options::OPT_fno_inline)) { 1624 // Explicit inlining flags can disable some or all inlining even at 1625 // optimization levels above zero. 1626 if (A->getOption().matches(options::OPT_finline_functions)) 1627 Opts.setInlining(CodeGenOptions::NormalInlining); 1628 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1629 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1630 else 1631 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1632 } else { 1633 Opts.setInlining(CodeGenOptions::NormalInlining); 1634 } 1635 1636 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1637 // -fdirect-access-external-data. 1638 Opts.DirectAccessExternalData = 1639 Args.hasArg(OPT_fdirect_access_external_data) || 1640 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1641 LangOpts->PICLevel == 0); 1642 1643 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1644 unsigned Val = 1645 llvm::StringSwitch<unsigned>(A->getValue()) 1646 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1647 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1648 .Case("constructor", codegenoptions::DebugInfoConstructor) 1649 .Case("limited", codegenoptions::LimitedDebugInfo) 1650 .Case("standalone", codegenoptions::FullDebugInfo) 1651 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1652 .Default(~0U); 1653 if (Val == ~0U) 1654 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1655 << A->getValue(); 1656 else 1657 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1658 } 1659 1660 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1661 // constructor homing, and vice versa for -fno-use-ctor-homing. 1662 if (const Arg *A = 1663 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1664 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1665 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1666 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1667 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1668 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1669 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1670 } 1671 1672 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1673 auto Split = StringRef(Arg).split('='); 1674 Opts.DebugPrefixMap.insert( 1675 {std::string(Split.first), std::string(Split.second)}); 1676 } 1677 1678 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1679 auto Split = StringRef(Arg).split('='); 1680 Opts.CoveragePrefixMap.insert( 1681 {std::string(Split.first), std::string(Split.second)}); 1682 } 1683 1684 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1685 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1686 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1687 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1688 1689 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1690 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1691 Opts.EmitCallSiteInfo = true; 1692 1693 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1694 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1695 << Opts.DIBugsReportFilePath; 1696 Opts.DIBugsReportFilePath = ""; 1697 } 1698 1699 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1700 Args.hasArg(OPT_new_struct_path_tbaa); 1701 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1702 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1703 if (Opts.SimplifyLibCalls) 1704 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1705 Opts.UnrollLoops = 1706 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1707 (Opts.OptimizationLevel > 1)); 1708 Opts.BinutilsVersion = 1709 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1710 1711 Opts.DebugNameTable = static_cast<unsigned>( 1712 Args.hasArg(OPT_ggnu_pubnames) 1713 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1714 : Args.hasArg(OPT_gpubnames) 1715 ? llvm::DICompileUnit::DebugNameTableKind::Default 1716 : llvm::DICompileUnit::DebugNameTableKind::None); 1717 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1718 StringRef Value = A->getValue(); 1719 if (Value != "simple" && Value != "mangled") 1720 Diags.Report(diag::err_drv_unsupported_option_argument) 1721 << A->getSpelling() << A->getValue(); 1722 Opts.setDebugSimpleTemplateNames( 1723 StringRef(A->getValue()) == "simple" 1724 ? codegenoptions::DebugTemplateNamesKind::Simple 1725 : codegenoptions::DebugTemplateNamesKind::Mangled); 1726 } 1727 1728 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1729 Opts.TimePasses = true; 1730 1731 // -ftime-report= is only for new pass manager. 1732 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1733 StringRef Val = A->getValue(); 1734 if (Val == "per-pass") 1735 Opts.TimePassesPerRun = false; 1736 else if (Val == "per-pass-run") 1737 Opts.TimePassesPerRun = true; 1738 else 1739 Diags.Report(diag::err_drv_invalid_value) 1740 << A->getAsString(Args) << A->getValue(); 1741 } 1742 } 1743 1744 Opts.PrepareForLTO = false; 1745 Opts.PrepareForThinLTO = false; 1746 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1747 Opts.PrepareForLTO = true; 1748 StringRef S = A->getValue(); 1749 if (S == "thin") 1750 Opts.PrepareForThinLTO = true; 1751 else if (S != "full") 1752 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1753 } 1754 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1755 if (IK.getLanguage() != Language::LLVM_IR) 1756 Diags.Report(diag::err_drv_argument_only_allowed_with) 1757 << A->getAsString(Args) << "-x ir"; 1758 Opts.ThinLTOIndexFile = 1759 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1760 } 1761 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1762 Opts.SaveTempsFilePrefix = 1763 llvm::StringSwitch<std::string>(A->getValue()) 1764 .Case("obj", OutputFile) 1765 .Default(llvm::sys::path::filename(OutputFile).str()); 1766 1767 // The memory profile runtime appends the pid to make this name more unique. 1768 const char *MemProfileBasename = "memprof.profraw"; 1769 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1770 SmallString<128> Path( 1771 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1772 llvm::sys::path::append(Path, MemProfileBasename); 1773 Opts.MemoryProfileOutput = std::string(Path); 1774 } else if (Args.hasArg(OPT_fmemory_profile)) 1775 Opts.MemoryProfileOutput = MemProfileBasename; 1776 1777 memcpy(Opts.CoverageVersion, "408*", 4); 1778 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1779 if (Args.hasArg(OPT_coverage_version_EQ)) { 1780 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1781 if (CoverageVersion.size() != 4) { 1782 Diags.Report(diag::err_drv_invalid_value) 1783 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1784 << CoverageVersion; 1785 } else { 1786 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1787 } 1788 } 1789 } 1790 // FIXME: For backend options that are not yet recorded as function 1791 // attributes in the IR, keep track of them so we can embed them in a 1792 // separate data section and use them when building the bitcode. 1793 for (const auto &A : Args) { 1794 // Do not encode output and input. 1795 if (A->getOption().getID() == options::OPT_o || 1796 A->getOption().getID() == options::OPT_INPUT || 1797 A->getOption().getID() == options::OPT_x || 1798 A->getOption().getID() == options::OPT_fembed_bitcode || 1799 A->getOption().matches(options::OPT_W_Group)) 1800 continue; 1801 ArgStringList ASL; 1802 A->render(Args, ASL); 1803 for (const auto &arg : ASL) { 1804 StringRef ArgStr(arg); 1805 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1806 // using \00 to separate each commandline options. 1807 Opts.CmdArgs.push_back('\0'); 1808 } 1809 } 1810 1811 auto XRayInstrBundles = 1812 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1813 if (XRayInstrBundles.empty()) 1814 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1815 else 1816 for (const auto &A : XRayInstrBundles) 1817 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1818 Diags, Opts.XRayInstrumentationBundle); 1819 1820 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1821 StringRef Name = A->getValue(); 1822 if (Name == "full") { 1823 Opts.CFProtectionReturn = 1; 1824 Opts.CFProtectionBranch = 1; 1825 } else if (Name == "return") 1826 Opts.CFProtectionReturn = 1; 1827 else if (Name == "branch") 1828 Opts.CFProtectionBranch = 1; 1829 else if (Name != "none") 1830 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1831 } 1832 1833 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1834 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1835 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1836 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1837 .Default(llvm::FunctionReturnThunksKind::Invalid); 1838 // SystemZ might want to add support for "expolines." 1839 if (!T.isX86()) 1840 Diags.Report(diag::err_drv_argument_not_allowed_with) 1841 << A->getSpelling() << T.getTriple(); 1842 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1843 Diags.Report(diag::err_drv_invalid_value) 1844 << A->getAsString(Args) << A->getValue(); 1845 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1846 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1847 Diags.Report(diag::err_drv_argument_not_allowed_with) 1848 << A->getAsString(Args) 1849 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1850 else 1851 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1852 } 1853 1854 for (auto *A : 1855 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1856 CodeGenOptions::BitcodeFileToLink F; 1857 F.Filename = A->getValue(); 1858 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1859 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1860 // When linking CUDA bitcode, propagate function attributes so that 1861 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1862 F.PropagateAttrs = true; 1863 F.Internalize = true; 1864 } 1865 Opts.LinkBitcodeFiles.push_back(F); 1866 } 1867 1868 if (!Args.getLastArg(OPT_femulated_tls) && 1869 !Args.getLastArg(OPT_fno_emulated_tls)) { 1870 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1871 } 1872 1873 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1874 if (T.isOSAIX()) { 1875 StringRef Name = A->getValue(); 1876 if (Name != "global-dynamic") 1877 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1878 } 1879 } 1880 1881 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1882 StringRef Val = A->getValue(); 1883 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1884 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1885 if (!Opts.FPDenormalMode.isValid()) 1886 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1887 } 1888 1889 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1890 StringRef Val = A->getValue(); 1891 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1892 if (!Opts.FP32DenormalMode.isValid()) 1893 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1894 } 1895 1896 // X86_32 has -fppc-struct-return and -freg-struct-return. 1897 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1898 if (Arg *A = 1899 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1900 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1901 // TODO: We might want to consider enabling these options on AIX in the 1902 // future. 1903 if (T.isOSAIX()) 1904 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1905 << A->getSpelling() << T.str(); 1906 1907 const Option &O = A->getOption(); 1908 if (O.matches(OPT_fpcc_struct_return) || 1909 O.matches(OPT_maix_struct_return)) { 1910 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1911 } else { 1912 assert(O.matches(OPT_freg_struct_return) || 1913 O.matches(OPT_msvr4_struct_return)); 1914 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1915 } 1916 } 1917 1918 if (Arg *A = 1919 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1920 if (!T.isOSAIX()) 1921 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1922 << A->getSpelling() << T.str(); 1923 1924 const Option &O = A->getOption(); 1925 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1926 } 1927 1928 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1929 if (!T.isOSAIX() || T.isPPC32()) 1930 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1931 << A->getSpelling() << T.str(); 1932 } 1933 1934 bool NeedLocTracking = false; 1935 1936 if (!Opts.OptRecordFile.empty()) 1937 NeedLocTracking = true; 1938 1939 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1940 Opts.OptRecordPasses = A->getValue(); 1941 NeedLocTracking = true; 1942 } 1943 1944 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1945 Opts.OptRecordFormat = A->getValue(); 1946 NeedLocTracking = true; 1947 } 1948 1949 Opts.OptimizationRemark = 1950 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1951 1952 Opts.OptimizationRemarkMissed = 1953 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1954 1955 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1956 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1957 1958 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1959 Opts.OptimizationRemarkMissed.hasValidPattern() || 1960 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1961 1962 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1963 bool UsingProfile = 1964 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 1965 1966 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1967 // An IR file will contain PGO as metadata 1968 IK.getLanguage() != Language::LLVM_IR) 1969 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1970 << "-fdiagnostics-show-hotness"; 1971 1972 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1973 if (auto *arg = 1974 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1975 auto ResultOrErr = 1976 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1977 1978 if (!ResultOrErr) { 1979 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1980 << "-fdiagnostics-hotness-threshold="; 1981 } else { 1982 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1983 if ((!Opts.DiagnosticsHotnessThreshold || 1984 *Opts.DiagnosticsHotnessThreshold > 0) && 1985 !UsingProfile) 1986 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1987 << "-fdiagnostics-hotness-threshold="; 1988 } 1989 } 1990 1991 if (auto *arg = 1992 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 1993 auto ResultOrErr = parseToleranceOption(arg->getValue()); 1994 1995 if (!ResultOrErr) { 1996 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 1997 << "-fdiagnostics-misexpect-tolerance="; 1998 } else { 1999 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2000 if ((!Opts.DiagnosticsMisExpectTolerance || 2001 *Opts.DiagnosticsMisExpectTolerance > 0) && 2002 !UsingProfile) 2003 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2004 << "-fdiagnostics-misexpect-tolerance="; 2005 } 2006 } 2007 2008 // If the user requested to use a sample profile for PGO, then the 2009 // backend will need to track source location information so the profile 2010 // can be incorporated into the IR. 2011 if (UsingSampleProfile) 2012 NeedLocTracking = true; 2013 2014 if (!Opts.StackUsageOutput.empty()) 2015 NeedLocTracking = true; 2016 2017 // If the user requested a flag that requires source locations available in 2018 // the backend, make sure that the backend tracks source location information. 2019 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2020 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2021 2022 // Parse -fsanitize-recover= arguments. 2023 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2024 parseSanitizerKinds("-fsanitize-recover=", 2025 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2026 Opts.SanitizeRecover); 2027 parseSanitizerKinds("-fsanitize-trap=", 2028 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2029 Opts.SanitizeTrap); 2030 2031 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2032 2033 if (Args.hasArg(options::OPT_ffinite_loops)) 2034 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2035 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2036 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2037 2038 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2039 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2040 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2041 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2042 2043 return Diags.getNumErrors() == NumErrorsBefore; 2044 } 2045 2046 static void 2047 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2048 SmallVectorImpl<const char *> &Args, 2049 CompilerInvocation::StringAllocator SA) { 2050 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2051 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2052 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2053 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2054 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2055 MERGER, EXTRACTOR, TABLE_INDEX) \ 2056 GENERATE_OPTION_WITH_MARSHALLING( \ 2057 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2058 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2059 #include "clang/Driver/Options.inc" 2060 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2061 2062 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2063 GenerateArg(Args, OPT_show_includes, SA); 2064 2065 for (const auto &Dep : Opts.ExtraDeps) { 2066 switch (Dep.second) { 2067 case EDK_SanitizeIgnorelist: 2068 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2069 continue; 2070 case EDK_ModuleFile: 2071 // Module file arguments are generated from FrontendOptions and 2072 // HeaderSearchOptions. 2073 continue; 2074 case EDK_ProfileList: 2075 // Profile list arguments are generated from LanguageOptions via the 2076 // marshalling infrastructure. 2077 continue; 2078 case EDK_DepFileEntry: 2079 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2080 break; 2081 } 2082 } 2083 } 2084 2085 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2086 ArgList &Args, DiagnosticsEngine &Diags, 2087 frontend::ActionKind Action, 2088 bool ShowLineMarkers) { 2089 unsigned NumErrorsBefore = Diags.getNumErrors(); 2090 2091 DependencyOutputOptions &DependencyOutputOpts = Opts; 2092 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2093 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2094 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2095 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2096 MERGER, EXTRACTOR, TABLE_INDEX) \ 2097 PARSE_OPTION_WITH_MARSHALLING( \ 2098 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2099 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2100 #include "clang/Driver/Options.inc" 2101 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2102 2103 if (Args.hasArg(OPT_show_includes)) { 2104 // Writing both /showIncludes and preprocessor output to stdout 2105 // would produce interleaved output, so use stderr for /showIncludes. 2106 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2107 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2108 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2109 else 2110 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2111 } else { 2112 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2113 } 2114 2115 // Add sanitizer ignorelists as extra dependencies. 2116 // They won't be discovered by the regular preprocessor, so 2117 // we let make / ninja to know about this implicit dependency. 2118 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2119 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2120 StringRef Val = A->getValue(); 2121 if (!Val.contains('=')) 2122 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2123 } 2124 if (Opts.IncludeSystemHeaders) { 2125 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2126 StringRef Val = A->getValue(); 2127 if (!Val.contains('=')) 2128 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2129 } 2130 } 2131 } 2132 2133 // -fprofile-list= dependencies. 2134 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2135 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2136 2137 // Propagate the extra dependencies. 2138 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2139 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2140 2141 // Only the -fmodule-file=<file> form. 2142 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2143 StringRef Val = A->getValue(); 2144 if (!Val.contains('=')) 2145 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2146 } 2147 2148 // Check for invalid combinations of header-include-format 2149 // and header-include-filtering. 2150 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2151 Opts.HeaderIncludeFiltering != HIFIL_None) || 2152 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2153 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2154 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2155 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2156 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2157 2158 return Diags.getNumErrors() == NumErrorsBefore; 2159 } 2160 2161 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2162 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2163 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2164 // Support both clang's -f[no-]color-diagnostics and gcc's 2165 // -f[no-]diagnostics-colors[=never|always|auto]. 2166 enum { 2167 Colors_On, 2168 Colors_Off, 2169 Colors_Auto 2170 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2171 for (auto *A : Args) { 2172 const Option &O = A->getOption(); 2173 if (O.matches(options::OPT_fcolor_diagnostics)) { 2174 ShowColors = Colors_On; 2175 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2176 ShowColors = Colors_Off; 2177 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2178 StringRef Value(A->getValue()); 2179 if (Value == "always") 2180 ShowColors = Colors_On; 2181 else if (Value == "never") 2182 ShowColors = Colors_Off; 2183 else if (Value == "auto") 2184 ShowColors = Colors_Auto; 2185 } 2186 } 2187 return ShowColors == Colors_On || 2188 (ShowColors == Colors_Auto && 2189 llvm::sys::Process::StandardErrHasColors()); 2190 } 2191 2192 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2193 DiagnosticsEngine &Diags) { 2194 bool Success = true; 2195 for (const auto &Prefix : VerifyPrefixes) { 2196 // Every prefix must start with a letter and contain only alphanumeric 2197 // characters, hyphens, and underscores. 2198 auto BadChar = llvm::find_if(Prefix, [](char C) { 2199 return !isAlphanumeric(C) && C != '-' && C != '_'; 2200 }); 2201 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2202 Success = false; 2203 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2204 Diags.Report(diag::note_drv_verify_prefix_spelling); 2205 } 2206 } 2207 return Success; 2208 } 2209 2210 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2211 SmallVectorImpl<const char *> &Args, 2212 CompilerInvocation::StringAllocator SA) { 2213 const FileSystemOptions &FileSystemOpts = Opts; 2214 2215 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2216 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2217 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2218 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2219 MERGER, EXTRACTOR, TABLE_INDEX) \ 2220 GENERATE_OPTION_WITH_MARSHALLING( \ 2221 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2222 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2223 #include "clang/Driver/Options.inc" 2224 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2225 } 2226 2227 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2228 DiagnosticsEngine &Diags) { 2229 unsigned NumErrorsBefore = Diags.getNumErrors(); 2230 2231 FileSystemOptions &FileSystemOpts = Opts; 2232 2233 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2234 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2235 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2236 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2237 MERGER, EXTRACTOR, TABLE_INDEX) \ 2238 PARSE_OPTION_WITH_MARSHALLING( \ 2239 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2240 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2241 #include "clang/Driver/Options.inc" 2242 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2243 2244 return Diags.getNumErrors() == NumErrorsBefore; 2245 } 2246 2247 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2248 SmallVectorImpl<const char *> &Args, 2249 CompilerInvocation::StringAllocator SA) { 2250 const MigratorOptions &MigratorOpts = Opts; 2251 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2252 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2253 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2254 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2255 MERGER, EXTRACTOR, TABLE_INDEX) \ 2256 GENERATE_OPTION_WITH_MARSHALLING( \ 2257 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2258 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2259 #include "clang/Driver/Options.inc" 2260 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2261 } 2262 2263 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2264 DiagnosticsEngine &Diags) { 2265 unsigned NumErrorsBefore = Diags.getNumErrors(); 2266 2267 MigratorOptions &MigratorOpts = Opts; 2268 2269 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2270 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2271 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2272 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2273 MERGER, EXTRACTOR, TABLE_INDEX) \ 2274 PARSE_OPTION_WITH_MARSHALLING( \ 2275 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2276 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2277 #include "clang/Driver/Options.inc" 2278 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2279 2280 return Diags.getNumErrors() == NumErrorsBefore; 2281 } 2282 2283 void CompilerInvocation::GenerateDiagnosticArgs( 2284 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2285 StringAllocator SA, bool DefaultDiagColor) { 2286 const DiagnosticOptions *DiagnosticOpts = &Opts; 2287 #define DIAG_OPTION_WITH_MARSHALLING( \ 2288 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2289 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2290 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2291 MERGER, EXTRACTOR, TABLE_INDEX) \ 2292 GENERATE_OPTION_WITH_MARSHALLING( \ 2293 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2294 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2295 #include "clang/Driver/Options.inc" 2296 #undef DIAG_OPTION_WITH_MARSHALLING 2297 2298 if (!Opts.DiagnosticSerializationFile.empty()) 2299 GenerateArg(Args, OPT_diagnostic_serialized_file, 2300 Opts.DiagnosticSerializationFile, SA); 2301 2302 if (Opts.ShowColors) 2303 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2304 2305 if (Opts.VerifyDiagnostics && 2306 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2307 GenerateArg(Args, OPT_verify, SA); 2308 2309 for (const auto &Prefix : Opts.VerifyPrefixes) 2310 if (Prefix != "expected") 2311 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2312 2313 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2314 if (VIU == DiagnosticLevelMask::None) { 2315 // This is the default, don't generate anything. 2316 } else if (VIU == DiagnosticLevelMask::All) { 2317 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2318 } else { 2319 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2320 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2321 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2322 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2323 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2324 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2325 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2326 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2327 } 2328 2329 for (const auto &Warning : Opts.Warnings) { 2330 // This option is automatically generated from UndefPrefixes. 2331 if (Warning == "undef-prefix") 2332 continue; 2333 Args.push_back(SA(StringRef("-W") + Warning)); 2334 } 2335 2336 for (const auto &Remark : Opts.Remarks) { 2337 // These arguments are generated from OptimizationRemark fields of 2338 // CodeGenOptions. 2339 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2340 "pass-analysis", "no-pass-analysis", 2341 "pass-missed", "no-pass-missed"}; 2342 if (llvm::is_contained(IgnoredRemarks, Remark)) 2343 continue; 2344 2345 Args.push_back(SA(StringRef("-R") + Remark)); 2346 } 2347 } 2348 2349 std::unique_ptr<DiagnosticOptions> 2350 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2351 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2352 unsigned MissingArgIndex, MissingArgCount; 2353 InputArgList Args = getDriverOptTable().ParseArgs( 2354 Argv.slice(1), MissingArgIndex, MissingArgCount); 2355 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2356 // Any errors that would be diagnosed here will also be diagnosed later, 2357 // when the DiagnosticsEngine actually exists. 2358 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2359 return DiagOpts; 2360 } 2361 2362 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2363 DiagnosticsEngine *Diags, 2364 bool DefaultDiagColor) { 2365 std::optional<DiagnosticsEngine> IgnoringDiags; 2366 if (!Diags) { 2367 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2368 new IgnoringDiagConsumer()); 2369 Diags = &*IgnoringDiags; 2370 } 2371 2372 unsigned NumErrorsBefore = Diags->getNumErrors(); 2373 2374 // The key paths of diagnostic options defined in Options.td start with 2375 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2376 DiagnosticOptions *DiagnosticOpts = &Opts; 2377 2378 #define DIAG_OPTION_WITH_MARSHALLING( \ 2379 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2380 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2381 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2382 MERGER, EXTRACTOR, TABLE_INDEX) \ 2383 PARSE_OPTION_WITH_MARSHALLING( \ 2384 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2385 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2386 #include "clang/Driver/Options.inc" 2387 #undef DIAG_OPTION_WITH_MARSHALLING 2388 2389 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2390 2391 if (Arg *A = 2392 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2393 Opts.DiagnosticSerializationFile = A->getValue(); 2394 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2395 2396 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2397 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2398 if (Args.hasArg(OPT_verify)) 2399 Opts.VerifyPrefixes.push_back("expected"); 2400 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2401 // then sort it to prepare for fast lookup using std::binary_search. 2402 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2403 Opts.VerifyDiagnostics = false; 2404 else 2405 llvm::sort(Opts.VerifyPrefixes); 2406 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2407 parseDiagnosticLevelMask( 2408 "-verify-ignore-unexpected=", 2409 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2410 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2411 DiagMask = DiagnosticLevelMask::All; 2412 Opts.setVerifyIgnoreUnexpected(DiagMask); 2413 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2414 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2415 Diags->Report(diag::warn_ignoring_ftabstop_value) 2416 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2417 } 2418 2419 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2420 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2421 2422 return Diags->getNumErrors() == NumErrorsBefore; 2423 } 2424 2425 /// Parse the argument to the -ftest-module-file-extension 2426 /// command-line argument. 2427 /// 2428 /// \returns true on error, false on success. 2429 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2430 std::string &BlockName, 2431 unsigned &MajorVersion, 2432 unsigned &MinorVersion, 2433 bool &Hashed, 2434 std::string &UserInfo) { 2435 SmallVector<StringRef, 5> Args; 2436 Arg.split(Args, ':', 5); 2437 if (Args.size() < 5) 2438 return true; 2439 2440 BlockName = std::string(Args[0]); 2441 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2442 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2443 if (Args[3].getAsInteger(2, Hashed)) return true; 2444 if (Args.size() > 4) 2445 UserInfo = std::string(Args[4]); 2446 return false; 2447 } 2448 2449 /// Return a table that associates command line option specifiers with the 2450 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2451 /// intentionally missing, as this case is handled separately from other 2452 /// frontend options. 2453 static const auto &getFrontendActionTable() { 2454 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2455 {frontend::ASTDeclList, OPT_ast_list}, 2456 2457 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2458 {frontend::ASTDump, OPT_ast_dump_all}, 2459 {frontend::ASTDump, OPT_ast_dump_EQ}, 2460 {frontend::ASTDump, OPT_ast_dump}, 2461 {frontend::ASTDump, OPT_ast_dump_lookups}, 2462 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2463 2464 {frontend::ASTPrint, OPT_ast_print}, 2465 {frontend::ASTView, OPT_ast_view}, 2466 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2467 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2468 {frontend::DumpTokens, OPT_dump_tokens}, 2469 {frontend::EmitAssembly, OPT_S}, 2470 {frontend::EmitBC, OPT_emit_llvm_bc}, 2471 {frontend::EmitHTML, OPT_emit_html}, 2472 {frontend::EmitLLVM, OPT_emit_llvm}, 2473 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2474 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2475 {frontend::EmitObj, OPT_emit_obj}, 2476 {frontend::ExtractAPI, OPT_extract_api}, 2477 2478 {frontend::FixIt, OPT_fixit_EQ}, 2479 {frontend::FixIt, OPT_fixit}, 2480 2481 {frontend::GenerateModule, OPT_emit_module}, 2482 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2483 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2484 {frontend::GeneratePCH, OPT_emit_pch}, 2485 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2486 {frontend::InitOnly, OPT_init_only}, 2487 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2488 {frontend::ModuleFileInfo, OPT_module_file_info}, 2489 {frontend::VerifyPCH, OPT_verify_pch}, 2490 {frontend::PrintPreamble, OPT_print_preamble}, 2491 {frontend::PrintPreprocessedInput, OPT_E}, 2492 {frontend::TemplightDump, OPT_templight_dump}, 2493 {frontend::RewriteMacros, OPT_rewrite_macros}, 2494 {frontend::RewriteObjC, OPT_rewrite_objc}, 2495 {frontend::RewriteTest, OPT_rewrite_test}, 2496 {frontend::RunAnalysis, OPT_analyze}, 2497 {frontend::MigrateSource, OPT_migrate}, 2498 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2499 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2500 OPT_print_dependency_directives_minimized_source}, 2501 }; 2502 2503 return Table; 2504 } 2505 2506 /// Maps command line option to frontend action. 2507 static std::optional<frontend::ActionKind> 2508 getFrontendAction(OptSpecifier &Opt) { 2509 for (const auto &ActionOpt : getFrontendActionTable()) 2510 if (ActionOpt.second == Opt.getID()) 2511 return ActionOpt.first; 2512 2513 return std::nullopt; 2514 } 2515 2516 /// Maps frontend action to command line option. 2517 static std::optional<OptSpecifier> 2518 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2519 for (const auto &ActionOpt : getFrontendActionTable()) 2520 if (ActionOpt.first == ProgramAction) 2521 return OptSpecifier(ActionOpt.second); 2522 2523 return std::nullopt; 2524 } 2525 2526 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2527 SmallVectorImpl<const char *> &Args, 2528 CompilerInvocation::StringAllocator SA, 2529 bool IsHeader) { 2530 const FrontendOptions &FrontendOpts = Opts; 2531 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2532 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2533 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2534 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2535 MERGER, EXTRACTOR, TABLE_INDEX) \ 2536 GENERATE_OPTION_WITH_MARSHALLING( \ 2537 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2538 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2539 #include "clang/Driver/Options.inc" 2540 #undef FRONTEND_OPTION_WITH_MARSHALLING 2541 2542 std::optional<OptSpecifier> ProgramActionOpt = 2543 getProgramActionOpt(Opts.ProgramAction); 2544 2545 // Generating a simple flag covers most frontend actions. 2546 std::function<void()> GenerateProgramAction = [&]() { 2547 GenerateArg(Args, *ProgramActionOpt, SA); 2548 }; 2549 2550 if (!ProgramActionOpt) { 2551 // PluginAction is the only program action handled separately. 2552 assert(Opts.ProgramAction == frontend::PluginAction && 2553 "Frontend action without option."); 2554 GenerateProgramAction = [&]() { 2555 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2556 }; 2557 } 2558 2559 // FIXME: Simplify the complex 'AST dump' command line. 2560 if (Opts.ProgramAction == frontend::ASTDump) { 2561 GenerateProgramAction = [&]() { 2562 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2563 // marshalling infrastructure. 2564 2565 if (Opts.ASTDumpFormat != ADOF_Default) { 2566 StringRef Format; 2567 switch (Opts.ASTDumpFormat) { 2568 case ADOF_Default: 2569 llvm_unreachable("Default AST dump format."); 2570 case ADOF_JSON: 2571 Format = "json"; 2572 break; 2573 } 2574 2575 if (Opts.ASTDumpAll) 2576 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2577 if (Opts.ASTDumpDecls) 2578 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2579 } else { 2580 if (Opts.ASTDumpAll) 2581 GenerateArg(Args, OPT_ast_dump_all, SA); 2582 if (Opts.ASTDumpDecls) 2583 GenerateArg(Args, OPT_ast_dump, SA); 2584 } 2585 }; 2586 } 2587 2588 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2589 GenerateProgramAction = [&]() { 2590 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2591 }; 2592 } 2593 2594 GenerateProgramAction(); 2595 2596 for (const auto &PluginArgs : Opts.PluginArgs) { 2597 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2598 const char *Spelling = 2599 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2600 for (const auto &PluginArg : PluginArgs.second) 2601 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2602 } 2603 2604 for (const auto &Ext : Opts.ModuleFileExtensions) 2605 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2606 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2607 2608 if (!Opts.CodeCompletionAt.FileName.empty()) 2609 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2610 SA); 2611 2612 for (const auto &Plugin : Opts.Plugins) 2613 GenerateArg(Args, OPT_load, Plugin, SA); 2614 2615 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2616 2617 for (const auto &ModuleFile : Opts.ModuleFiles) 2618 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2619 2620 if (Opts.AuxTargetCPU) 2621 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2622 2623 if (Opts.AuxTargetFeatures) 2624 for (const auto &Feature : *Opts.AuxTargetFeatures) 2625 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2626 2627 { 2628 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2629 StringRef ModuleMap = 2630 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2631 StringRef HeaderUnit = ""; 2632 switch (Opts.DashX.getHeaderUnitKind()) { 2633 case InputKind::HeaderUnit_None: 2634 break; 2635 case InputKind::HeaderUnit_User: 2636 HeaderUnit = "-user"; 2637 break; 2638 case InputKind::HeaderUnit_System: 2639 HeaderUnit = "-system"; 2640 break; 2641 case InputKind::HeaderUnit_Abs: 2642 HeaderUnit = "-header-unit"; 2643 break; 2644 } 2645 StringRef Header = IsHeader ? "-header" : ""; 2646 2647 StringRef Lang; 2648 switch (Opts.DashX.getLanguage()) { 2649 case Language::C: 2650 Lang = "c"; 2651 break; 2652 case Language::OpenCL: 2653 Lang = "cl"; 2654 break; 2655 case Language::OpenCLCXX: 2656 Lang = "clcpp"; 2657 break; 2658 case Language::CUDA: 2659 Lang = "cuda"; 2660 break; 2661 case Language::HIP: 2662 Lang = "hip"; 2663 break; 2664 case Language::CXX: 2665 Lang = "c++"; 2666 break; 2667 case Language::ObjC: 2668 Lang = "objective-c"; 2669 break; 2670 case Language::ObjCXX: 2671 Lang = "objective-c++"; 2672 break; 2673 case Language::RenderScript: 2674 Lang = "renderscript"; 2675 break; 2676 case Language::Asm: 2677 Lang = "assembler-with-cpp"; 2678 break; 2679 case Language::Unknown: 2680 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2681 "Generating -x argument for unknown language (not precompiled)."); 2682 Lang = "ast"; 2683 break; 2684 case Language::LLVM_IR: 2685 Lang = "ir"; 2686 break; 2687 case Language::HLSL: 2688 Lang = "hlsl"; 2689 break; 2690 } 2691 2692 GenerateArg(Args, OPT_x, 2693 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2694 } 2695 2696 // OPT_INPUT has a unique class, generate it directly. 2697 for (const auto &Input : Opts.Inputs) 2698 Args.push_back(SA(Input.getFile())); 2699 } 2700 2701 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2702 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2703 unsigned NumErrorsBefore = Diags.getNumErrors(); 2704 2705 FrontendOptions &FrontendOpts = Opts; 2706 2707 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2708 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2709 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2710 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2711 MERGER, EXTRACTOR, TABLE_INDEX) \ 2712 PARSE_OPTION_WITH_MARSHALLING( \ 2713 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2714 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2715 #include "clang/Driver/Options.inc" 2716 #undef FRONTEND_OPTION_WITH_MARSHALLING 2717 2718 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2719 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2720 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2721 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2722 assert(ProgramAction && "Option specifier not in Action_Group."); 2723 2724 if (ProgramAction == frontend::ASTDump && 2725 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2726 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2727 .CaseLower("default", ADOF_Default) 2728 .CaseLower("json", ADOF_JSON) 2729 .Default(std::numeric_limits<unsigned>::max()); 2730 2731 if (Val != std::numeric_limits<unsigned>::max()) 2732 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2733 else { 2734 Diags.Report(diag::err_drv_invalid_value) 2735 << A->getAsString(Args) << A->getValue(); 2736 Opts.ASTDumpFormat = ADOF_Default; 2737 } 2738 } 2739 2740 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2741 Opts.FixItSuffix = A->getValue(); 2742 2743 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2744 StringRef ArgStr = 2745 Args.hasArg(OPT_interface_stub_version_EQ) 2746 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2747 : "ifs-v1"; 2748 if (ArgStr == "experimental-yaml-elf-v1" || 2749 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2750 ArgStr == "experimental-tapi-elf-v1") { 2751 std::string ErrorMessage = 2752 "Invalid interface stub format: " + ArgStr.str() + 2753 " is deprecated."; 2754 Diags.Report(diag::err_drv_invalid_value) 2755 << "Must specify a valid interface stub format type, ie: " 2756 "-interface-stub-version=ifs-v1" 2757 << ErrorMessage; 2758 ProgramAction = frontend::ParseSyntaxOnly; 2759 } else if (!ArgStr.startswith("ifs-")) { 2760 std::string ErrorMessage = 2761 "Invalid interface stub format: " + ArgStr.str() + "."; 2762 Diags.Report(diag::err_drv_invalid_value) 2763 << "Must specify a valid interface stub format type, ie: " 2764 "-interface-stub-version=ifs-v1" 2765 << ErrorMessage; 2766 ProgramAction = frontend::ParseSyntaxOnly; 2767 } 2768 } 2769 2770 Opts.ProgramAction = *ProgramAction; 2771 } 2772 2773 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2774 Opts.Plugins.emplace_back(A->getValue(0)); 2775 Opts.ProgramAction = frontend::PluginAction; 2776 Opts.ActionName = A->getValue(); 2777 } 2778 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2779 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2780 2781 for (const std::string &Arg : 2782 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2783 std::string BlockName; 2784 unsigned MajorVersion; 2785 unsigned MinorVersion; 2786 bool Hashed; 2787 std::string UserInfo; 2788 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2789 MinorVersion, Hashed, UserInfo)) { 2790 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2791 2792 continue; 2793 } 2794 2795 // Add the testing module file extension. 2796 Opts.ModuleFileExtensions.push_back( 2797 std::make_shared<TestModuleFileExtension>( 2798 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2799 } 2800 2801 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2802 Opts.CodeCompletionAt = 2803 ParsedSourceLocation::FromString(A->getValue()); 2804 if (Opts.CodeCompletionAt.FileName.empty()) 2805 Diags.Report(diag::err_drv_invalid_value) 2806 << A->getAsString(Args) << A->getValue(); 2807 } 2808 2809 Opts.Plugins = Args.getAllArgValues(OPT_load); 2810 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2811 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2812 // Only the -fmodule-file=<file> form. 2813 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2814 StringRef Val = A->getValue(); 2815 if (!Val.contains('=')) 2816 Opts.ModuleFiles.push_back(std::string(Val)); 2817 } 2818 2819 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2820 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2821 << "-emit-module"; 2822 2823 if (Args.hasArg(OPT_aux_target_cpu)) 2824 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2825 if (Args.hasArg(OPT_aux_target_feature)) 2826 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2827 2828 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2829 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2830 Diags.Report(diag::err_drv_argument_not_allowed_with) 2831 << "ARC migration" << "ObjC migration"; 2832 } 2833 2834 InputKind DashX(Language::Unknown); 2835 if (const Arg *A = Args.getLastArg(OPT_x)) { 2836 StringRef XValue = A->getValue(); 2837 2838 // Parse suffixes: 2839 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2840 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2841 bool Preprocessed = XValue.consume_back("-cpp-output"); 2842 bool ModuleMap = XValue.consume_back("-module-map"); 2843 // Detect and consume the header indicator. 2844 bool IsHeader = 2845 XValue != "precompiled-header" && XValue.consume_back("-header"); 2846 2847 // If we have c++-{user,system}-header, that indicates a header unit input 2848 // likewise, if the user put -fmodule-header together with a header with an 2849 // absolute path (header-unit-header). 2850 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2851 if (IsHeader || Preprocessed) { 2852 if (XValue.consume_back("-header-unit")) 2853 HUK = InputKind::HeaderUnit_Abs; 2854 else if (XValue.consume_back("-system")) 2855 HUK = InputKind::HeaderUnit_System; 2856 else if (XValue.consume_back("-user")) 2857 HUK = InputKind::HeaderUnit_User; 2858 } 2859 2860 // The value set by this processing is an un-preprocessed source which is 2861 // not intended to be a module map or header unit. 2862 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2863 HUK == InputKind::HeaderUnit_None; 2864 2865 // Principal languages. 2866 DashX = llvm::StringSwitch<InputKind>(XValue) 2867 .Case("c", Language::C) 2868 .Case("cl", Language::OpenCL) 2869 .Case("clcpp", Language::OpenCLCXX) 2870 .Case("cuda", Language::CUDA) 2871 .Case("hip", Language::HIP) 2872 .Case("c++", Language::CXX) 2873 .Case("objective-c", Language::ObjC) 2874 .Case("objective-c++", Language::ObjCXX) 2875 .Case("renderscript", Language::RenderScript) 2876 .Case("hlsl", Language::HLSL) 2877 .Default(Language::Unknown); 2878 2879 // "objc[++]-cpp-output" is an acceptable synonym for 2880 // "objective-c[++]-cpp-output". 2881 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2882 HUK == InputKind::HeaderUnit_None) 2883 DashX = llvm::StringSwitch<InputKind>(XValue) 2884 .Case("objc", Language::ObjC) 2885 .Case("objc++", Language::ObjCXX) 2886 .Default(Language::Unknown); 2887 2888 // Some special cases cannot be combined with suffixes. 2889 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2890 HUK == InputKind::HeaderUnit_None) 2891 DashX = llvm::StringSwitch<InputKind>(XValue) 2892 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2893 .Case("assembler-with-cpp", Language::Asm) 2894 .Cases("ast", "pcm", "precompiled-header", 2895 InputKind(Language::Unknown, InputKind::Precompiled)) 2896 .Case("ir", Language::LLVM_IR) 2897 .Default(Language::Unknown); 2898 2899 if (DashX.isUnknown()) 2900 Diags.Report(diag::err_drv_invalid_value) 2901 << A->getAsString(Args) << A->getValue(); 2902 2903 if (Preprocessed) 2904 DashX = DashX.getPreprocessed(); 2905 // A regular header is considered mutually exclusive with a header unit. 2906 if (HUK != InputKind::HeaderUnit_None) { 2907 DashX = DashX.withHeaderUnit(HUK); 2908 IsHeaderFile = true; 2909 } else if (IsHeaderFile) 2910 DashX = DashX.getHeader(); 2911 if (ModuleMap) 2912 DashX = DashX.withFormat(InputKind::ModuleMap); 2913 } 2914 2915 // '-' is the default input if none is given. 2916 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2917 Opts.Inputs.clear(); 2918 if (Inputs.empty()) 2919 Inputs.push_back("-"); 2920 2921 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2922 Inputs.size() > 1) 2923 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2924 2925 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2926 InputKind IK = DashX; 2927 if (IK.isUnknown()) { 2928 IK = FrontendOptions::getInputKindForExtension( 2929 StringRef(Inputs[i]).rsplit('.').second); 2930 // FIXME: Warn on this? 2931 if (IK.isUnknown()) 2932 IK = Language::C; 2933 // FIXME: Remove this hack. 2934 if (i == 0) 2935 DashX = IK; 2936 } 2937 2938 bool IsSystem = false; 2939 2940 // The -emit-module action implicitly takes a module map. 2941 if (Opts.ProgramAction == frontend::GenerateModule && 2942 IK.getFormat() == InputKind::Source) { 2943 IK = IK.withFormat(InputKind::ModuleMap); 2944 IsSystem = Opts.IsSystemModule; 2945 } 2946 2947 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2948 } 2949 2950 Opts.DashX = DashX; 2951 2952 return Diags.getNumErrors() == NumErrorsBefore; 2953 } 2954 2955 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2956 void *MainAddr) { 2957 std::string ClangExecutable = 2958 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2959 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2960 } 2961 2962 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2963 SmallVectorImpl<const char *> &Args, 2964 CompilerInvocation::StringAllocator SA) { 2965 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2966 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2967 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2968 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2969 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2970 MERGER, EXTRACTOR, TABLE_INDEX) \ 2971 GENERATE_OPTION_WITH_MARSHALLING( \ 2972 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2973 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2974 #include "clang/Driver/Options.inc" 2975 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2976 2977 if (Opts.UseLibcxx) 2978 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2979 2980 if (!Opts.ModuleCachePath.empty()) 2981 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2982 2983 for (const auto &File : Opts.PrebuiltModuleFiles) 2984 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2985 2986 for (const auto &Path : Opts.PrebuiltModulePaths) 2987 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2988 2989 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2990 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2991 2992 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2993 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2994 std::optional<bool> IsFramework, 2995 std::optional<bool> IgnoreSysRoot) { 2996 return llvm::is_contained(Groups, Entry.Group) && 2997 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2998 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2999 }; 3000 3001 auto It = Opts.UserEntries.begin(); 3002 auto End = Opts.UserEntries.end(); 3003 3004 // Add -I..., -F..., and -index-header-map options in order. 3005 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3006 std::nullopt, true); 3007 ++It) { 3008 OptSpecifier Opt = [It, Matches]() { 3009 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3010 return OPT_F; 3011 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3012 return OPT_I; 3013 if (Matches(*It, frontend::Angled, true, true)) 3014 return OPT_F; 3015 if (Matches(*It, frontend::Angled, false, true)) 3016 return OPT_I; 3017 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3018 }(); 3019 3020 if (It->Group == frontend::IndexHeaderMap) 3021 GenerateArg(Args, OPT_index_header_map, SA); 3022 GenerateArg(Args, Opt, It->Path, SA); 3023 }; 3024 3025 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3026 // have already been generated as "-I[xx]yy". If that's the case, their 3027 // position on command line was such that this has no semantic impact on 3028 // include paths. 3029 for (; It < End && 3030 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3031 ++It) { 3032 OptSpecifier Opt = 3033 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3034 GenerateArg(Args, Opt, It->Path, SA); 3035 } 3036 3037 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3038 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3039 // command line was such that this has no semantic impact on include paths. 3040 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3041 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3042 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3043 GenerateArg(Args, OPT_iquote, It->Path, SA); 3044 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3045 ++It) 3046 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3047 It->Path, SA); 3048 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3049 GenerateArg(Args, OPT_iframework, It->Path, SA); 3050 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3051 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3052 3053 // Add the paths for the various language specific isystem flags. 3054 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3055 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3056 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3057 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3058 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3059 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3060 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3061 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3062 3063 // Add the internal paths from a driver that detects standard include paths. 3064 // Note: Some paths that came from "-internal-isystem" arguments may have 3065 // already been generated as "-isystem". If that's the case, their position on 3066 // command line was such that this has no semantic impact on include paths. 3067 for (; It < End && 3068 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3069 ++It) { 3070 OptSpecifier Opt = It->Group == frontend::System 3071 ? OPT_internal_isystem 3072 : OPT_internal_externc_isystem; 3073 GenerateArg(Args, Opt, It->Path, SA); 3074 } 3075 3076 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3077 3078 // Add the path prefixes which are implicitly treated as being system headers. 3079 for (const auto &P : Opts.SystemHeaderPrefixes) { 3080 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3081 : OPT_no_system_header_prefix; 3082 GenerateArg(Args, Opt, P.Prefix, SA); 3083 } 3084 3085 for (const std::string &F : Opts.VFSOverlayFiles) 3086 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3087 } 3088 3089 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3090 DiagnosticsEngine &Diags, 3091 const std::string &WorkingDir) { 3092 unsigned NumErrorsBefore = Diags.getNumErrors(); 3093 3094 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3095 3096 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3097 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3098 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3099 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3100 MERGER, EXTRACTOR, TABLE_INDEX) \ 3101 PARSE_OPTION_WITH_MARSHALLING( \ 3102 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3103 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3104 #include "clang/Driver/Options.inc" 3105 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3106 3107 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3108 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3109 3110 // Canonicalize -fmodules-cache-path before storing it. 3111 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3112 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3113 if (WorkingDir.empty()) 3114 llvm::sys::fs::make_absolute(P); 3115 else 3116 llvm::sys::fs::make_absolute(WorkingDir, P); 3117 } 3118 llvm::sys::path::remove_dots(P); 3119 Opts.ModuleCachePath = std::string(P.str()); 3120 3121 // Only the -fmodule-file=<name>=<file> form. 3122 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3123 StringRef Val = A->getValue(); 3124 if (Val.contains('=')) { 3125 auto Split = Val.split('='); 3126 Opts.PrebuiltModuleFiles.insert( 3127 {std::string(Split.first), std::string(Split.second)}); 3128 } 3129 } 3130 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3131 Opts.AddPrebuiltModulePath(A->getValue()); 3132 3133 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3134 StringRef MacroDef = A->getValue(); 3135 Opts.ModulesIgnoreMacros.insert( 3136 llvm::CachedHashString(MacroDef.split('=').first)); 3137 } 3138 3139 // Add -I..., -F..., and -index-header-map options in order. 3140 bool IsIndexHeaderMap = false; 3141 bool IsSysrootSpecified = 3142 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3143 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3144 if (A->getOption().matches(OPT_index_header_map)) { 3145 // -index-header-map applies to the next -I or -F. 3146 IsIndexHeaderMap = true; 3147 continue; 3148 } 3149 3150 frontend::IncludeDirGroup Group = 3151 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3152 3153 bool IsFramework = A->getOption().matches(OPT_F); 3154 std::string Path = A->getValue(); 3155 3156 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3157 SmallString<32> Buffer; 3158 llvm::sys::path::append(Buffer, Opts.Sysroot, 3159 llvm::StringRef(A->getValue()).substr(1)); 3160 Path = std::string(Buffer.str()); 3161 } 3162 3163 Opts.AddPath(Path, Group, IsFramework, 3164 /*IgnoreSysroot*/ true); 3165 IsIndexHeaderMap = false; 3166 } 3167 3168 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3169 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3170 for (const auto *A : 3171 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3172 if (A->getOption().matches(OPT_iprefix)) 3173 Prefix = A->getValue(); 3174 else if (A->getOption().matches(OPT_iwithprefix)) 3175 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3176 else 3177 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3178 } 3179 3180 for (const auto *A : Args.filtered(OPT_idirafter)) 3181 Opts.AddPath(A->getValue(), frontend::After, false, true); 3182 for (const auto *A : Args.filtered(OPT_iquote)) 3183 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3184 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3185 Opts.AddPath(A->getValue(), frontend::System, false, 3186 !A->getOption().matches(OPT_iwithsysroot)); 3187 for (const auto *A : Args.filtered(OPT_iframework)) 3188 Opts.AddPath(A->getValue(), frontend::System, true, true); 3189 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3190 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3191 /*IgnoreSysRoot=*/false); 3192 3193 // Add the paths for the various language specific isystem flags. 3194 for (const auto *A : Args.filtered(OPT_c_isystem)) 3195 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3196 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3197 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3198 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3199 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3200 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3201 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3202 3203 // Add the internal paths from a driver that detects standard include paths. 3204 for (const auto *A : 3205 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3206 frontend::IncludeDirGroup Group = frontend::System; 3207 if (A->getOption().matches(OPT_internal_externc_isystem)) 3208 Group = frontend::ExternCSystem; 3209 Opts.AddPath(A->getValue(), Group, false, true); 3210 } 3211 3212 // Add the path prefixes which are implicitly treated as being system headers. 3213 for (const auto *A : 3214 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3215 Opts.AddSystemHeaderPrefix( 3216 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3217 3218 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3219 Opts.AddVFSOverlayFile(A->getValue()); 3220 3221 return Diags.getNumErrors() == NumErrorsBefore; 3222 } 3223 3224 /// Check if input file kind and language standard are compatible. 3225 static bool IsInputCompatibleWithStandard(InputKind IK, 3226 const LangStandard &S) { 3227 switch (IK.getLanguage()) { 3228 case Language::Unknown: 3229 case Language::LLVM_IR: 3230 llvm_unreachable("should not parse language flags for this input"); 3231 3232 case Language::C: 3233 case Language::ObjC: 3234 case Language::RenderScript: 3235 return S.getLanguage() == Language::C; 3236 3237 case Language::OpenCL: 3238 return S.getLanguage() == Language::OpenCL || 3239 S.getLanguage() == Language::OpenCLCXX; 3240 3241 case Language::OpenCLCXX: 3242 return S.getLanguage() == Language::OpenCLCXX; 3243 3244 case Language::CXX: 3245 case Language::ObjCXX: 3246 return S.getLanguage() == Language::CXX; 3247 3248 case Language::CUDA: 3249 // FIXME: What -std= values should be permitted for CUDA compilations? 3250 return S.getLanguage() == Language::CUDA || 3251 S.getLanguage() == Language::CXX; 3252 3253 case Language::HIP: 3254 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3255 3256 case Language::Asm: 3257 // Accept (and ignore) all -std= values. 3258 // FIXME: The -std= value is not ignored; it affects the tokenization 3259 // and preprocessing rules if we're preprocessing this asm input. 3260 return true; 3261 3262 case Language::HLSL: 3263 return S.getLanguage() == Language::HLSL; 3264 } 3265 3266 llvm_unreachable("unexpected input language"); 3267 } 3268 3269 /// Get language name for given input kind. 3270 static StringRef GetInputKindName(InputKind IK) { 3271 switch (IK.getLanguage()) { 3272 case Language::C: 3273 return "C"; 3274 case Language::ObjC: 3275 return "Objective-C"; 3276 case Language::CXX: 3277 return "C++"; 3278 case Language::ObjCXX: 3279 return "Objective-C++"; 3280 case Language::OpenCL: 3281 return "OpenCL"; 3282 case Language::OpenCLCXX: 3283 return "C++ for OpenCL"; 3284 case Language::CUDA: 3285 return "CUDA"; 3286 case Language::RenderScript: 3287 return "RenderScript"; 3288 case Language::HIP: 3289 return "HIP"; 3290 3291 case Language::Asm: 3292 return "Asm"; 3293 case Language::LLVM_IR: 3294 return "LLVM IR"; 3295 3296 case Language::HLSL: 3297 return "HLSL"; 3298 3299 case Language::Unknown: 3300 break; 3301 } 3302 llvm_unreachable("unknown input language"); 3303 } 3304 3305 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3306 SmallVectorImpl<const char *> &Args, 3307 StringAllocator SA, 3308 const llvm::Triple &T, InputKind IK) { 3309 if (IK.getFormat() == InputKind::Precompiled || 3310 IK.getLanguage() == Language::LLVM_IR) { 3311 if (Opts.ObjCAutoRefCount) 3312 GenerateArg(Args, OPT_fobjc_arc, SA); 3313 if (Opts.PICLevel != 0) 3314 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3315 if (Opts.PIE) 3316 GenerateArg(Args, OPT_pic_is_pie, SA); 3317 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3318 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3319 3320 return; 3321 } 3322 3323 OptSpecifier StdOpt; 3324 switch (Opts.LangStd) { 3325 case LangStandard::lang_opencl10: 3326 case LangStandard::lang_opencl11: 3327 case LangStandard::lang_opencl12: 3328 case LangStandard::lang_opencl20: 3329 case LangStandard::lang_opencl30: 3330 case LangStandard::lang_openclcpp10: 3331 case LangStandard::lang_openclcpp2021: 3332 StdOpt = OPT_cl_std_EQ; 3333 break; 3334 default: 3335 StdOpt = OPT_std_EQ; 3336 break; 3337 } 3338 3339 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3340 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3341 3342 if (Opts.IncludeDefaultHeader) 3343 GenerateArg(Args, OPT_finclude_default_header, SA); 3344 if (Opts.DeclareOpenCLBuiltins) 3345 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3346 3347 const LangOptions *LangOpts = &Opts; 3348 3349 #define LANG_OPTION_WITH_MARSHALLING( \ 3350 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3351 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3352 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3353 MERGER, EXTRACTOR, TABLE_INDEX) \ 3354 GENERATE_OPTION_WITH_MARSHALLING( \ 3355 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3356 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3357 #include "clang/Driver/Options.inc" 3358 #undef LANG_OPTION_WITH_MARSHALLING 3359 3360 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3361 3362 if (Opts.ObjC) { 3363 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3364 3365 if (Opts.GC == LangOptions::GCOnly) 3366 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3367 else if (Opts.GC == LangOptions::HybridGC) 3368 GenerateArg(Args, OPT_fobjc_gc, SA); 3369 else if (Opts.ObjCAutoRefCount == 1) 3370 GenerateArg(Args, OPT_fobjc_arc, SA); 3371 3372 if (Opts.ObjCWeakRuntime) 3373 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3374 3375 if (Opts.ObjCWeak) 3376 GenerateArg(Args, OPT_fobjc_weak, SA); 3377 3378 if (Opts.ObjCSubscriptingLegacyRuntime) 3379 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3380 } 3381 3382 if (Opts.GNUCVersion != 0) { 3383 unsigned Major = Opts.GNUCVersion / 100 / 100; 3384 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3385 unsigned Patch = Opts.GNUCVersion % 100; 3386 GenerateArg(Args, OPT_fgnuc_version_EQ, 3387 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3388 } 3389 3390 if (Opts.IgnoreXCOFFVisibility) 3391 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3392 3393 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3394 GenerateArg(Args, OPT_ftrapv, SA); 3395 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3396 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3397 GenerateArg(Args, OPT_fwrapv, SA); 3398 } 3399 3400 if (Opts.MSCompatibilityVersion != 0) { 3401 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3402 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3403 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3404 GenerateArg(Args, OPT_fms_compatibility_version, 3405 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3406 } 3407 3408 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3409 if (!Opts.Trigraphs) 3410 GenerateArg(Args, OPT_fno_trigraphs, SA); 3411 } else { 3412 if (Opts.Trigraphs) 3413 GenerateArg(Args, OPT_ftrigraphs, SA); 3414 } 3415 3416 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3417 GenerateArg(Args, OPT_fblocks, SA); 3418 3419 if (Opts.ConvergentFunctions && 3420 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3421 GenerateArg(Args, OPT_fconvergent_functions, SA); 3422 3423 if (Opts.NoBuiltin && !Opts.Freestanding) 3424 GenerateArg(Args, OPT_fno_builtin, SA); 3425 3426 if (!Opts.NoBuiltin) 3427 for (const auto &Func : Opts.NoBuiltinFuncs) 3428 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3429 3430 if (Opts.LongDoubleSize == 128) 3431 GenerateArg(Args, OPT_mlong_double_128, SA); 3432 else if (Opts.LongDoubleSize == 64) 3433 GenerateArg(Args, OPT_mlong_double_64, SA); 3434 else if (Opts.LongDoubleSize == 80) 3435 GenerateArg(Args, OPT_mlong_double_80, SA); 3436 3437 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3438 3439 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3440 // '-fopenmp-targets='. 3441 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3442 GenerateArg(Args, OPT_fopenmp, SA); 3443 3444 if (Opts.OpenMP != 50) 3445 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3446 3447 if (!Opts.OpenMPUseTLS) 3448 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3449 3450 if (Opts.OpenMPIsDevice) 3451 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3452 3453 if (Opts.OpenMPIRBuilder) 3454 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3455 } 3456 3457 if (Opts.OpenMPSimd) { 3458 GenerateArg(Args, OPT_fopenmp_simd, SA); 3459 3460 if (Opts.OpenMP != 50) 3461 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3462 } 3463 3464 if (Opts.OpenMPThreadSubscription) 3465 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3466 3467 if (Opts.OpenMPTeamSubscription) 3468 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3469 3470 if (Opts.OpenMPTargetDebug != 0) 3471 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3472 Twine(Opts.OpenMPTargetDebug), SA); 3473 3474 if (Opts.OpenMPCUDANumSMs != 0) 3475 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3476 Twine(Opts.OpenMPCUDANumSMs), SA); 3477 3478 if (Opts.OpenMPCUDABlocksPerSM != 0) 3479 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3480 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3481 3482 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3483 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3484 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3485 3486 if (!Opts.OMPTargetTriples.empty()) { 3487 std::string Targets; 3488 llvm::raw_string_ostream OS(Targets); 3489 llvm::interleave( 3490 Opts.OMPTargetTriples, OS, 3491 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3492 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3493 } 3494 3495 if (!Opts.OMPHostIRFile.empty()) 3496 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3497 3498 if (Opts.OpenMPCUDAMode) 3499 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3500 3501 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3502 // generated from CodeGenOptions. 3503 3504 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3505 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3506 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3507 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3508 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3509 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3510 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3511 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3512 3513 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3514 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3515 3516 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3517 for (const std::string &F : Opts.NoSanitizeFiles) 3518 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3519 3520 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3521 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3522 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3523 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3524 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3525 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3526 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3527 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3528 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3529 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3530 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3531 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3532 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3533 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3534 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3535 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3536 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3537 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3538 3539 if (Opts.getSignReturnAddressScope() == 3540 LangOptions::SignReturnAddressScopeKind::All) 3541 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3542 else if (Opts.getSignReturnAddressScope() == 3543 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3544 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3545 3546 if (Opts.getSignReturnAddressKey() == 3547 LangOptions::SignReturnAddressKeyKind::BKey) 3548 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3549 3550 if (Opts.CXXABI) 3551 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3552 SA); 3553 3554 if (Opts.RelativeCXXABIVTables) 3555 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3556 else 3557 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3558 3559 if (Opts.UseTargetPathSeparator) 3560 GenerateArg(Args, OPT_ffile_reproducible, SA); 3561 else 3562 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3563 3564 for (const auto &MP : Opts.MacroPrefixMap) 3565 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3566 3567 if (!Opts.RandstructSeed.empty()) 3568 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3569 } 3570 3571 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3572 InputKind IK, const llvm::Triple &T, 3573 std::vector<std::string> &Includes, 3574 DiagnosticsEngine &Diags) { 3575 unsigned NumErrorsBefore = Diags.getNumErrors(); 3576 3577 if (IK.getFormat() == InputKind::Precompiled || 3578 IK.getLanguage() == Language::LLVM_IR) { 3579 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3580 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3581 // what the input type is. 3582 if (Args.hasArg(OPT_fobjc_arc)) 3583 Opts.ObjCAutoRefCount = 1; 3584 // PICLevel and PIELevel are needed during code generation and this should 3585 // be set regardless of the input type. 3586 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3587 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3588 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3589 Diags, Opts.Sanitize); 3590 3591 return Diags.getNumErrors() == NumErrorsBefore; 3592 } 3593 3594 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3595 // FIXME: Should we really be parsing this for an Language::Asm input? 3596 3597 // FIXME: Cleanup per-file based stuff. 3598 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3599 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3600 LangStd = LangStandard::getLangKind(A->getValue()); 3601 if (LangStd == LangStandard::lang_unspecified) { 3602 Diags.Report(diag::err_drv_invalid_value) 3603 << A->getAsString(Args) << A->getValue(); 3604 // Report supported standards with short description. 3605 for (unsigned KindValue = 0; 3606 KindValue != LangStandard::lang_unspecified; 3607 ++KindValue) { 3608 const LangStandard &Std = LangStandard::getLangStandardForKind( 3609 static_cast<LangStandard::Kind>(KindValue)); 3610 if (IsInputCompatibleWithStandard(IK, Std)) { 3611 auto Diag = Diags.Report(diag::note_drv_use_standard); 3612 Diag << Std.getName() << Std.getDescription(); 3613 unsigned NumAliases = 0; 3614 #define LANGSTANDARD(id, name, lang, desc, features) 3615 #define LANGSTANDARD_ALIAS(id, alias) \ 3616 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3617 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3618 #include "clang/Basic/LangStandards.def" 3619 Diag << NumAliases; 3620 #define LANGSTANDARD(id, name, lang, desc, features) 3621 #define LANGSTANDARD_ALIAS(id, alias) \ 3622 if (KindValue == LangStandard::lang_##id) Diag << alias; 3623 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3624 #include "clang/Basic/LangStandards.def" 3625 } 3626 } 3627 } else { 3628 // Valid standard, check to make sure language and standard are 3629 // compatible. 3630 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3631 if (!IsInputCompatibleWithStandard(IK, Std)) { 3632 Diags.Report(diag::err_drv_argument_not_allowed_with) 3633 << A->getAsString(Args) << GetInputKindName(IK); 3634 } 3635 } 3636 } 3637 3638 // -cl-std only applies for OpenCL language standards. 3639 // Override the -std option in this case. 3640 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3641 LangStandard::Kind OpenCLLangStd 3642 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3643 .Cases("cl", "CL", LangStandard::lang_opencl10) 3644 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3645 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3646 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3647 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3648 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3649 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3650 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3651 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3652 .Default(LangStandard::lang_unspecified); 3653 3654 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3655 Diags.Report(diag::err_drv_invalid_value) 3656 << A->getAsString(Args) << A->getValue(); 3657 } 3658 else 3659 LangStd = OpenCLLangStd; 3660 } 3661 3662 // These need to be parsed now. They are used to set OpenCL defaults. 3663 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3664 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3665 3666 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3667 3668 // The key paths of codegen options defined in Options.td start with 3669 // "LangOpts->". Let's provide the expected variable name and type. 3670 LangOptions *LangOpts = &Opts; 3671 3672 #define LANG_OPTION_WITH_MARSHALLING( \ 3673 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3674 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3675 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3676 MERGER, EXTRACTOR, TABLE_INDEX) \ 3677 PARSE_OPTION_WITH_MARSHALLING( \ 3678 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3679 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3680 #include "clang/Driver/Options.inc" 3681 #undef LANG_OPTION_WITH_MARSHALLING 3682 3683 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3684 StringRef Name = A->getValue(); 3685 if (Name == "full" || Name == "branch") { 3686 Opts.CFProtectionBranch = 1; 3687 } 3688 } 3689 3690 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3691 !Args.hasArg(OPT_sycl_std_EQ)) { 3692 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3693 // provide -sycl-std=, we want to default it to whatever the default SYCL 3694 // version is. I could not find a way to express this with the options 3695 // tablegen because we still want this value to be SYCL_None when the user 3696 // is not in device or host mode. 3697 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3698 } 3699 3700 if (Opts.ObjC) { 3701 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3702 StringRef value = arg->getValue(); 3703 if (Opts.ObjCRuntime.tryParse(value)) 3704 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3705 } 3706 3707 if (Args.hasArg(OPT_fobjc_gc_only)) 3708 Opts.setGC(LangOptions::GCOnly); 3709 else if (Args.hasArg(OPT_fobjc_gc)) 3710 Opts.setGC(LangOptions::HybridGC); 3711 else if (Args.hasArg(OPT_fobjc_arc)) { 3712 Opts.ObjCAutoRefCount = 1; 3713 if (!Opts.ObjCRuntime.allowsARC()) 3714 Diags.Report(diag::err_arc_unsupported_on_runtime); 3715 } 3716 3717 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3718 // whether the feature is actually enabled. This is predominantly 3719 // determined by -fobjc-runtime, but we allow it to be overridden 3720 // from the command line for testing purposes. 3721 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3722 Opts.ObjCWeakRuntime = 1; 3723 else 3724 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3725 3726 // ObjCWeak determines whether __weak is actually enabled. 3727 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3728 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3729 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3730 assert(!Opts.ObjCWeak); 3731 } else if (Opts.getGC() != LangOptions::NonGC) { 3732 Diags.Report(diag::err_objc_weak_with_gc); 3733 } else if (!Opts.ObjCWeakRuntime) { 3734 Diags.Report(diag::err_objc_weak_unsupported); 3735 } else { 3736 Opts.ObjCWeak = 1; 3737 } 3738 } else if (Opts.ObjCAutoRefCount) { 3739 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3740 } 3741 3742 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3743 Opts.ObjCSubscriptingLegacyRuntime = 3744 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3745 } 3746 3747 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3748 // Check that the version has 1 to 3 components and the minor and patch 3749 // versions fit in two decimal digits. 3750 VersionTuple GNUCVer; 3751 bool Invalid = GNUCVer.tryParse(A->getValue()); 3752 unsigned Major = GNUCVer.getMajor(); 3753 unsigned Minor = GNUCVer.getMinor().value_or(0); 3754 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3755 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3756 Diags.Report(diag::err_drv_invalid_value) 3757 << A->getAsString(Args) << A->getValue(); 3758 } 3759 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3760 } 3761 3762 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3763 Opts.IgnoreXCOFFVisibility = 1; 3764 3765 if (Args.hasArg(OPT_ftrapv)) { 3766 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3767 // Set the handler, if one is specified. 3768 Opts.OverflowHandler = 3769 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3770 } 3771 else if (Args.hasArg(OPT_fwrapv)) 3772 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3773 3774 Opts.MSCompatibilityVersion = 0; 3775 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3776 VersionTuple VT; 3777 if (VT.tryParse(A->getValue())) 3778 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3779 << A->getValue(); 3780 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3781 VT.getMinor().value_or(0) * 100000 + 3782 VT.getSubminor().value_or(0); 3783 } 3784 3785 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3786 // is specified, or -std is set to a conforming mode. 3787 // Trigraphs are disabled by default in c++1z onwards. 3788 // For z/OS, trigraphs are enabled by default (without regard to the above). 3789 Opts.Trigraphs = 3790 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3791 Opts.Trigraphs = 3792 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3793 3794 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3795 && Opts.OpenCLVersion == 200); 3796 3797 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3798 Opts.SYCLIsDevice || 3799 Args.hasArg(OPT_fconvergent_functions); 3800 3801 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3802 if (!Opts.NoBuiltin) 3803 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3804 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3805 if (A->getOption().matches(options::OPT_mlong_double_64)) 3806 Opts.LongDoubleSize = 64; 3807 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3808 Opts.LongDoubleSize = 80; 3809 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3810 Opts.LongDoubleSize = 128; 3811 else 3812 Opts.LongDoubleSize = 0; 3813 } 3814 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3815 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3816 3817 llvm::sort(Opts.ModuleFeatures); 3818 3819 // -mrtd option 3820 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3821 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3822 Diags.Report(diag::err_drv_argument_not_allowed_with) 3823 << A->getSpelling() << "-fdefault-calling-conv"; 3824 else { 3825 if (T.getArch() != llvm::Triple::x86) 3826 Diags.Report(diag::err_drv_argument_not_allowed_with) 3827 << A->getSpelling() << T.getTriple(); 3828 else 3829 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3830 } 3831 } 3832 3833 // Check if -fopenmp is specified and set default version to 5.0. 3834 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3835 // Check if -fopenmp-simd is specified. 3836 bool IsSimdSpecified = 3837 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3838 /*Default=*/false); 3839 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3840 Opts.OpenMPUseTLS = 3841 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3842 Opts.OpenMPIsDevice = 3843 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3844 Opts.OpenMPIRBuilder = 3845 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3846 bool IsTargetSpecified = 3847 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3848 3849 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3850 3851 if (Opts.OpenMP || Opts.OpenMPSimd) { 3852 if (int Version = getLastArgIntValue( 3853 Args, OPT_fopenmp_version_EQ, 3854 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3855 Opts.OpenMP = Version; 3856 // Provide diagnostic when a given target is not expected to be an OpenMP 3857 // device or host. 3858 if (!Opts.OpenMPIsDevice) { 3859 switch (T.getArch()) { 3860 default: 3861 break; 3862 // Add unsupported host targets here: 3863 case llvm::Triple::nvptx: 3864 case llvm::Triple::nvptx64: 3865 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3866 break; 3867 } 3868 } 3869 } 3870 3871 // Set the flag to prevent the implementation from emitting device exception 3872 // handling code for those requiring so. 3873 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3874 Opts.OpenCLCPlusPlus) { 3875 3876 Opts.Exceptions = 0; 3877 Opts.CXXExceptions = 0; 3878 } 3879 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3880 Opts.OpenMPCUDANumSMs = 3881 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3882 Opts.OpenMPCUDANumSMs, Diags); 3883 Opts.OpenMPCUDABlocksPerSM = 3884 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3885 Opts.OpenMPCUDABlocksPerSM, Diags); 3886 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3887 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3888 Opts.OpenMPCUDAReductionBufNum, Diags); 3889 } 3890 3891 // Set the value of the debugging flag used in the new offloading device RTL. 3892 // Set either by a specific value or to a default if not specified. 3893 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3894 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3895 Opts.OpenMPTargetDebug = getLastArgIntValue( 3896 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3897 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3898 Opts.OpenMPTargetDebug = 1; 3899 } 3900 3901 if (Opts.OpenMPIsDevice) { 3902 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3903 Opts.OpenMPTeamSubscription = true; 3904 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3905 Opts.OpenMPThreadSubscription = true; 3906 } 3907 3908 // Get the OpenMP target triples if any. 3909 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3910 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3911 auto getArchPtrSize = [](const llvm::Triple &T) { 3912 if (T.isArch16Bit()) 3913 return Arch16Bit; 3914 if (T.isArch32Bit()) 3915 return Arch32Bit; 3916 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3917 return Arch64Bit; 3918 }; 3919 3920 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3921 llvm::Triple TT(A->getValue(i)); 3922 3923 if (TT.getArch() == llvm::Triple::UnknownArch || 3924 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3925 TT.getArch() == llvm::Triple::nvptx || 3926 TT.getArch() == llvm::Triple::nvptx64 || 3927 TT.getArch() == llvm::Triple::amdgcn || 3928 TT.getArch() == llvm::Triple::x86 || 3929 TT.getArch() == llvm::Triple::x86_64)) 3930 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3931 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3932 Diags.Report(diag::err_drv_incompatible_omp_arch) 3933 << A->getValue(i) << T.str(); 3934 else 3935 Opts.OMPTargetTriples.push_back(TT); 3936 } 3937 } 3938 3939 // Get OpenMP host file path if any and report if a non existent file is 3940 // found 3941 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3942 Opts.OMPHostIRFile = A->getValue(); 3943 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3944 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3945 << Opts.OMPHostIRFile; 3946 } 3947 3948 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3949 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3950 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3951 3952 // FIXME: Eliminate this dependency. 3953 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3954 OptSize = getOptimizationLevelSize(Args); 3955 Opts.Optimize = Opt != 0; 3956 Opts.OptimizeSize = OptSize != 0; 3957 3958 // This is the __NO_INLINE__ define, which just depends on things like the 3959 // optimization level and -fno-inline, not actually whether the backend has 3960 // inlining enabled. 3961 Opts.NoInlineDefine = !Opts.Optimize; 3962 if (Arg *InlineArg = Args.getLastArg( 3963 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3964 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3965 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3966 Opts.NoInlineDefine = true; 3967 3968 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3969 StringRef Val = A->getValue(); 3970 if (Val == "fast") 3971 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3972 else if (Val == "on") 3973 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3974 else if (Val == "off") 3975 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3976 else if (Val == "fast-honor-pragmas") 3977 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3978 else 3979 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3980 } 3981 3982 // Parse -fsanitize= arguments. 3983 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3984 Diags, Opts.Sanitize); 3985 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3986 std::vector<std::string> systemIgnorelists = 3987 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3988 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3989 systemIgnorelists.begin(), 3990 systemIgnorelists.end()); 3991 3992 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3993 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3994 3995 StringRef Ver = A->getValue(); 3996 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3997 unsigned Major, Minor = 0; 3998 3999 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4000 // y or y.0 (4 <= y <= current version). 4001 if (!VerParts.first.startswith("0") && 4002 !VerParts.first.getAsInteger(10, Major) && 4003 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4004 (Major == 3 ? VerParts.second.size() == 1 && 4005 !VerParts.second.getAsInteger(10, Minor) 4006 : VerParts.first.size() == Ver.size() || 4007 VerParts.second == "0")) { 4008 // Got a valid version number. 4009 if (Major == 3 && Minor <= 8) 4010 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4011 else if (Major <= 4) 4012 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4013 else if (Major <= 6) 4014 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4015 else if (Major <= 7) 4016 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4017 else if (Major <= 9) 4018 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4019 else if (Major <= 11) 4020 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4021 else if (Major <= 12) 4022 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4023 else if (Major <= 14) 4024 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4025 else if (Major <= 15) 4026 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4027 } else if (Ver != "latest") { 4028 Diags.Report(diag::err_drv_invalid_value) 4029 << A->getAsString(Args) << A->getValue(); 4030 } 4031 } 4032 4033 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4034 StringRef SignScope = A->getValue(); 4035 4036 if (SignScope.equals_insensitive("none")) 4037 Opts.setSignReturnAddressScope( 4038 LangOptions::SignReturnAddressScopeKind::None); 4039 else if (SignScope.equals_insensitive("all")) 4040 Opts.setSignReturnAddressScope( 4041 LangOptions::SignReturnAddressScopeKind::All); 4042 else if (SignScope.equals_insensitive("non-leaf")) 4043 Opts.setSignReturnAddressScope( 4044 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4045 else 4046 Diags.Report(diag::err_drv_invalid_value) 4047 << A->getAsString(Args) << SignScope; 4048 4049 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4050 StringRef SignKey = A->getValue(); 4051 if (!SignScope.empty() && !SignKey.empty()) { 4052 if (SignKey.equals_insensitive("a_key")) 4053 Opts.setSignReturnAddressKey( 4054 LangOptions::SignReturnAddressKeyKind::AKey); 4055 else if (SignKey.equals_insensitive("b_key")) 4056 Opts.setSignReturnAddressKey( 4057 LangOptions::SignReturnAddressKeyKind::BKey); 4058 else 4059 Diags.Report(diag::err_drv_invalid_value) 4060 << A->getAsString(Args) << SignKey; 4061 } 4062 } 4063 } 4064 4065 // The value can be empty, which indicates the system default should be used. 4066 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4067 if (!CXXABI.empty()) { 4068 if (!TargetCXXABI::isABI(CXXABI)) { 4069 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4070 } else { 4071 auto Kind = TargetCXXABI::getKind(CXXABI); 4072 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4073 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4074 else 4075 Opts.CXXABI = Kind; 4076 } 4077 } 4078 4079 Opts.RelativeCXXABIVTables = 4080 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4081 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4082 TargetCXXABI::usesRelativeVTables(T)); 4083 4084 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4085 auto Split = StringRef(A).split('='); 4086 Opts.MacroPrefixMap.insert( 4087 {std::string(Split.first), std::string(Split.second)}); 4088 } 4089 4090 Opts.UseTargetPathSeparator = 4091 !Args.getLastArg(OPT_fno_file_reproducible) && 4092 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4093 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4094 Args.getLastArg(OPT_ffile_reproducible)); 4095 4096 // Error if -mvscale-min is unbounded. 4097 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4098 unsigned VScaleMin; 4099 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4100 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4101 } 4102 4103 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4104 std::ifstream SeedFile(A->getValue(0)); 4105 4106 if (!SeedFile.is_open()) 4107 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4108 << A->getValue(0); 4109 4110 std::getline(SeedFile, Opts.RandstructSeed); 4111 } 4112 4113 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4114 Opts.RandstructSeed = A->getValue(0); 4115 4116 // Validate options for HLSL 4117 if (Opts.HLSL) { 4118 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4119 T.getOS() == llvm::Triple::ShaderModel; 4120 if (!SupportedTarget) 4121 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4122 } 4123 4124 return Diags.getNumErrors() == NumErrorsBefore; 4125 } 4126 4127 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4128 switch (Action) { 4129 case frontend::ASTDeclList: 4130 case frontend::ASTDump: 4131 case frontend::ASTPrint: 4132 case frontend::ASTView: 4133 case frontend::EmitAssembly: 4134 case frontend::EmitBC: 4135 case frontend::EmitHTML: 4136 case frontend::EmitLLVM: 4137 case frontend::EmitLLVMOnly: 4138 case frontend::EmitCodeGenOnly: 4139 case frontend::EmitObj: 4140 case frontend::ExtractAPI: 4141 case frontend::FixIt: 4142 case frontend::GenerateModule: 4143 case frontend::GenerateModuleInterface: 4144 case frontend::GenerateHeaderUnit: 4145 case frontend::GeneratePCH: 4146 case frontend::GenerateInterfaceStubs: 4147 case frontend::ParseSyntaxOnly: 4148 case frontend::ModuleFileInfo: 4149 case frontend::VerifyPCH: 4150 case frontend::PluginAction: 4151 case frontend::RewriteObjC: 4152 case frontend::RewriteTest: 4153 case frontend::RunAnalysis: 4154 case frontend::TemplightDump: 4155 case frontend::MigrateSource: 4156 return false; 4157 4158 case frontend::DumpCompilerOptions: 4159 case frontend::DumpRawTokens: 4160 case frontend::DumpTokens: 4161 case frontend::InitOnly: 4162 case frontend::PrintPreamble: 4163 case frontend::PrintPreprocessedInput: 4164 case frontend::RewriteMacros: 4165 case frontend::RunPreprocessorOnly: 4166 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4167 return true; 4168 } 4169 llvm_unreachable("invalid frontend action"); 4170 } 4171 4172 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4173 SmallVectorImpl<const char *> &Args, 4174 CompilerInvocation::StringAllocator SA, 4175 const LangOptions &LangOpts, 4176 const FrontendOptions &FrontendOpts, 4177 const CodeGenOptions &CodeGenOpts) { 4178 PreprocessorOptions *PreprocessorOpts = &Opts; 4179 4180 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4181 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4182 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4183 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4184 MERGER, EXTRACTOR, TABLE_INDEX) \ 4185 GENERATE_OPTION_WITH_MARSHALLING( \ 4186 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4187 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4188 #include "clang/Driver/Options.inc" 4189 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4190 4191 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4192 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4193 4194 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4195 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4196 4197 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4198 GenerateArg(Args, OPT_preamble_bytes_EQ, 4199 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4200 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4201 SA); 4202 4203 for (const auto &M : Opts.Macros) { 4204 // Don't generate __CET__ macro definitions. They are implied by the 4205 // -fcf-protection option that is generated elsewhere. 4206 if (M.first == "__CET__=1" && !M.second && 4207 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4208 continue; 4209 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4210 !CodeGenOpts.CFProtectionBranch) 4211 continue; 4212 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4213 CodeGenOpts.CFProtectionBranch) 4214 continue; 4215 4216 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4217 } 4218 4219 for (const auto &I : Opts.Includes) { 4220 // Don't generate OpenCL includes. They are implied by other flags that are 4221 // generated elsewhere. 4222 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4223 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4224 I == "opencl-c.h")) 4225 continue; 4226 // Don't generate HLSL includes. They are implied by other flags that are 4227 // generated elsewhere. 4228 if (LangOpts.HLSL && I == "hlsl.h") 4229 continue; 4230 4231 GenerateArg(Args, OPT_include, I, SA); 4232 } 4233 4234 for (const auto &CI : Opts.ChainedIncludes) 4235 GenerateArg(Args, OPT_chain_include, CI, SA); 4236 4237 for (const auto &RF : Opts.RemappedFiles) 4238 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4239 4240 if (Opts.SourceDateEpoch) 4241 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4242 4243 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4244 // generated elsewhere. 4245 } 4246 4247 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4248 DiagnosticsEngine &Diags, 4249 frontend::ActionKind Action, 4250 const FrontendOptions &FrontendOpts) { 4251 unsigned NumErrorsBefore = Diags.getNumErrors(); 4252 4253 PreprocessorOptions *PreprocessorOpts = &Opts; 4254 4255 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4256 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4257 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4258 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4259 MERGER, EXTRACTOR, TABLE_INDEX) \ 4260 PARSE_OPTION_WITH_MARSHALLING( \ 4261 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4262 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4263 #include "clang/Driver/Options.inc" 4264 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4265 4266 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4267 Args.hasArg(OPT_pch_through_hdrstop_use); 4268 4269 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4270 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4271 4272 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4273 StringRef Value(A->getValue()); 4274 size_t Comma = Value.find(','); 4275 unsigned Bytes = 0; 4276 unsigned EndOfLine = 0; 4277 4278 if (Comma == StringRef::npos || 4279 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4280 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4281 Diags.Report(diag::err_drv_preamble_format); 4282 else { 4283 Opts.PrecompiledPreambleBytes.first = Bytes; 4284 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4285 } 4286 } 4287 4288 // Add the __CET__ macro if a CFProtection option is set. 4289 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4290 StringRef Name = A->getValue(); 4291 if (Name == "branch") 4292 Opts.addMacroDef("__CET__=1"); 4293 else if (Name == "return") 4294 Opts.addMacroDef("__CET__=2"); 4295 else if (Name == "full") 4296 Opts.addMacroDef("__CET__=3"); 4297 } 4298 4299 // Add macros from the command line. 4300 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4301 if (A->getOption().matches(OPT_D)) 4302 Opts.addMacroDef(A->getValue()); 4303 else 4304 Opts.addMacroUndef(A->getValue()); 4305 } 4306 4307 // Add the ordered list of -includes. 4308 for (const auto *A : Args.filtered(OPT_include)) 4309 Opts.Includes.emplace_back(A->getValue()); 4310 4311 for (const auto *A : Args.filtered(OPT_chain_include)) 4312 Opts.ChainedIncludes.emplace_back(A->getValue()); 4313 4314 for (const auto *A : Args.filtered(OPT_remap_file)) { 4315 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4316 4317 if (Split.second.empty()) { 4318 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4319 continue; 4320 } 4321 4322 Opts.addRemappedFile(Split.first, Split.second); 4323 } 4324 4325 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4326 StringRef Epoch = A->getValue(); 4327 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4328 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4329 // 9999-12-31T23:59:59Z) as the upper bound. 4330 const uint64_t MaxTimestamp = 4331 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4332 uint64_t V; 4333 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4334 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4335 << Epoch << MaxTimestamp; 4336 } else { 4337 Opts.SourceDateEpoch = V; 4338 } 4339 } 4340 4341 // Always avoid lexing editor placeholders when we're just running the 4342 // preprocessor as we never want to emit the 4343 // "editor placeholder in source file" error in PP only mode. 4344 if (isStrictlyPreprocessorAction(Action)) 4345 Opts.LexEditorPlaceholders = false; 4346 4347 return Diags.getNumErrors() == NumErrorsBefore; 4348 } 4349 4350 static void GeneratePreprocessorOutputArgs( 4351 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4352 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4353 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4354 4355 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4356 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4357 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4358 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4359 MERGER, EXTRACTOR, TABLE_INDEX) \ 4360 GENERATE_OPTION_WITH_MARSHALLING( \ 4361 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4362 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4363 #include "clang/Driver/Options.inc" 4364 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4365 4366 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4367 if (Generate_dM) 4368 GenerateArg(Args, OPT_dM, SA); 4369 if (!Generate_dM && Opts.ShowMacros) 4370 GenerateArg(Args, OPT_dD, SA); 4371 if (Opts.DirectivesOnly) 4372 GenerateArg(Args, OPT_fdirectives_only, SA); 4373 } 4374 4375 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4376 ArgList &Args, DiagnosticsEngine &Diags, 4377 frontend::ActionKind Action) { 4378 unsigned NumErrorsBefore = Diags.getNumErrors(); 4379 4380 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4381 4382 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4383 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4384 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4385 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4386 MERGER, EXTRACTOR, TABLE_INDEX) \ 4387 PARSE_OPTION_WITH_MARSHALLING( \ 4388 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4389 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4390 #include "clang/Driver/Options.inc" 4391 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4392 4393 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4394 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4395 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4396 4397 return Diags.getNumErrors() == NumErrorsBefore; 4398 } 4399 4400 static void GenerateTargetArgs(const TargetOptions &Opts, 4401 SmallVectorImpl<const char *> &Args, 4402 CompilerInvocation::StringAllocator SA) { 4403 const TargetOptions *TargetOpts = &Opts; 4404 #define TARGET_OPTION_WITH_MARSHALLING( \ 4405 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4406 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4407 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4408 MERGER, EXTRACTOR, TABLE_INDEX) \ 4409 GENERATE_OPTION_WITH_MARSHALLING( \ 4410 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4411 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4412 #include "clang/Driver/Options.inc" 4413 #undef TARGET_OPTION_WITH_MARSHALLING 4414 4415 if (!Opts.SDKVersion.empty()) 4416 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4417 SA); 4418 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4419 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4420 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4421 } 4422 4423 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4424 DiagnosticsEngine &Diags) { 4425 unsigned NumErrorsBefore = Diags.getNumErrors(); 4426 4427 TargetOptions *TargetOpts = &Opts; 4428 4429 #define TARGET_OPTION_WITH_MARSHALLING( \ 4430 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4431 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4432 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4433 MERGER, EXTRACTOR, TABLE_INDEX) \ 4434 PARSE_OPTION_WITH_MARSHALLING( \ 4435 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4436 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4437 #include "clang/Driver/Options.inc" 4438 #undef TARGET_OPTION_WITH_MARSHALLING 4439 4440 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4441 llvm::VersionTuple Version; 4442 if (Version.tryParse(A->getValue())) 4443 Diags.Report(diag::err_drv_invalid_value) 4444 << A->getAsString(Args) << A->getValue(); 4445 else 4446 Opts.SDKVersion = Version; 4447 } 4448 if (Arg *A = 4449 Args.getLastArg(options::OPT_darwin_target_variant_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.DarwinTargetVariantSDKVersion = Version; 4456 } 4457 4458 return Diags.getNumErrors() == NumErrorsBefore; 4459 } 4460 4461 bool CompilerInvocation::CreateFromArgsImpl( 4462 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4463 DiagnosticsEngine &Diags, const char *Argv0) { 4464 unsigned NumErrorsBefore = Diags.getNumErrors(); 4465 4466 // Parse the arguments. 4467 const OptTable &Opts = getDriverOptTable(); 4468 const unsigned IncludedFlagsBitmask = options::CC1Option; 4469 unsigned MissingArgIndex, MissingArgCount; 4470 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4471 MissingArgCount, IncludedFlagsBitmask); 4472 LangOptions &LangOpts = *Res.getLangOpts(); 4473 4474 // Check for missing argument error. 4475 if (MissingArgCount) 4476 Diags.Report(diag::err_drv_missing_argument) 4477 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4478 4479 // Issue errors on unknown arguments. 4480 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4481 auto ArgString = A->getAsString(Args); 4482 std::string Nearest; 4483 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4484 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4485 else 4486 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4487 << ArgString << Nearest; 4488 } 4489 4490 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4491 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4492 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4493 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4494 /*DefaultDiagColor=*/false); 4495 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4496 // FIXME: We shouldn't have to pass the DashX option around here 4497 InputKind DashX = Res.getFrontendOpts().DashX; 4498 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4499 llvm::Triple T(Res.getTargetOpts().Triple); 4500 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4501 Res.getFileSystemOpts().WorkingDir); 4502 4503 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4504 Diags); 4505 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4506 LangOpts.ObjCExceptions = 1; 4507 4508 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4509 if (Warning == "misexpect" && 4510 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4511 Res.getCodeGenOpts().MisExpect = true; 4512 } 4513 } 4514 4515 if (LangOpts.CUDA) { 4516 // During CUDA device-side compilation, the aux triple is the 4517 // triple used for host compilation. 4518 if (LangOpts.CUDAIsDevice) 4519 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4520 } 4521 4522 // Set the triple of the host for OpenMP device compile. 4523 if (LangOpts.OpenMPIsDevice) 4524 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4525 4526 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4527 Res.getFrontendOpts().OutputFile, LangOpts); 4528 4529 // FIXME: Override value name discarding when asan or msan is used because the 4530 // backend passes depend on the name of the alloca in order to print out 4531 // names. 4532 Res.getCodeGenOpts().DiscardValueNames &= 4533 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4534 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4535 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4536 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4537 4538 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4539 Res.getFrontendOpts().ProgramAction, 4540 Res.getFrontendOpts()); 4541 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4542 Res.getFrontendOpts().ProgramAction); 4543 4544 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4545 Res.getFrontendOpts().ProgramAction, 4546 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4547 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4548 Res.getDependencyOutputOpts().Targets.empty()) 4549 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4550 4551 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4552 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4553 !Res.getLangOpts()->Sanitize.empty()) { 4554 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4555 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4556 } 4557 4558 // Store the command-line for using in the CodeView backend. 4559 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4560 Res.getCodeGenOpts().Argv0 = Argv0; 4561 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4562 } 4563 4564 // Set PGOOptions. Need to create a temporary VFS to read the profile 4565 // to determine the PGO type. 4566 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4567 auto FS = 4568 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4569 Diags, llvm::vfs::getRealFileSystem()); 4570 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4571 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4572 Diags); 4573 } 4574 4575 FixupInvocation(Res, Diags, Args, DashX); 4576 4577 return Diags.getNumErrors() == NumErrorsBefore; 4578 } 4579 4580 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4581 ArrayRef<const char *> CommandLineArgs, 4582 DiagnosticsEngine &Diags, 4583 const char *Argv0) { 4584 CompilerInvocation DummyInvocation; 4585 4586 return RoundTrip( 4587 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4588 DiagnosticsEngine &Diags, const char *Argv0) { 4589 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4590 }, 4591 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4592 StringAllocator SA) { 4593 Args.push_back("-cc1"); 4594 Invocation.generateCC1CommandLine(Args, SA); 4595 }, 4596 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4597 } 4598 4599 std::string CompilerInvocation::getModuleHash() const { 4600 // FIXME: Consider using SHA1 instead of MD5. 4601 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4602 4603 // Note: For QoI reasons, the things we use as a hash here should all be 4604 // dumped via the -module-info flag. 4605 4606 // Start the signature with the compiler version. 4607 HBuilder.add(getClangFullRepositoryVersion()); 4608 4609 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4610 // and getClangFullRepositoryVersion() doesn't include git revision. 4611 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4612 4613 // Extend the signature with the language options 4614 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4615 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4616 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4617 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4618 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4619 #include "clang/Basic/LangOptions.def" 4620 4621 HBuilder.addRange(LangOpts->ModuleFeatures); 4622 4623 HBuilder.add(LangOpts->ObjCRuntime); 4624 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4625 4626 // Extend the signature with the target options. 4627 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4628 TargetOpts->ABI); 4629 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4630 4631 // Extend the signature with preprocessor options. 4632 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4633 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4634 4635 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4636 for (const auto &Macro : getPreprocessorOpts().Macros) { 4637 // If we're supposed to ignore this macro for the purposes of modules, 4638 // don't put it into the hash. 4639 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4640 // Check whether we're ignoring this macro. 4641 StringRef MacroDef = Macro.first; 4642 if (hsOpts.ModulesIgnoreMacros.count( 4643 llvm::CachedHashString(MacroDef.split('=').first))) 4644 continue; 4645 } 4646 4647 HBuilder.add(Macro); 4648 } 4649 4650 // Extend the signature with the sysroot and other header search options. 4651 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4652 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4653 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4654 hsOpts.ModulesValidateDiagnosticOptions); 4655 HBuilder.add(hsOpts.ResourceDir); 4656 4657 if (hsOpts.ModulesStrictContextHash) { 4658 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4659 HBuilder.addRange(hsOpts.UserEntries); 4660 4661 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4662 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4663 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4664 HBuilder.add(diagOpts.get##Name()); 4665 #include "clang/Basic/DiagnosticOptions.def" 4666 #undef DIAGOPT 4667 #undef ENUM_DIAGOPT 4668 } 4669 4670 // Extend the signature with the user build path. 4671 HBuilder.add(hsOpts.ModuleUserBuildPath); 4672 4673 // Extend the signature with the module file extensions. 4674 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4675 ext->hashExtension(HBuilder); 4676 4677 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4678 // affects the debug info in the PCM. 4679 if (getCodeGenOpts().DebugTypeExtRefs) 4680 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4681 4682 // Extend the signature with the enabled sanitizers, if at least one is 4683 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4684 SanitizerSet SanHash = LangOpts->Sanitize; 4685 SanHash.clear(getPPTransparentSanitizers()); 4686 if (!SanHash.empty()) 4687 HBuilder.add(SanHash.Mask); 4688 4689 llvm::MD5::MD5Result Result; 4690 HBuilder.getHasher().final(Result); 4691 uint64_t Hash = Result.high() ^ Result.low(); 4692 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4693 } 4694 4695 void CompilerInvocation::generateCC1CommandLine( 4696 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4697 llvm::Triple T(TargetOpts->Triple); 4698 4699 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4700 GenerateMigratorArgs(MigratorOpts, Args, SA); 4701 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4702 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4703 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4704 GenerateTargetArgs(*TargetOpts, Args, SA); 4705 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4706 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4707 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4708 &*LangOpts); 4709 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4710 CodeGenOpts); 4711 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4712 FrontendOpts.ProgramAction); 4713 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4714 } 4715 4716 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4717 // Set up string allocator. 4718 llvm::BumpPtrAllocator Alloc; 4719 llvm::StringSaver Strings(Alloc); 4720 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4721 4722 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4723 SmallVector<const char *, 32> Args{"-cc1"}; 4724 generateCC1CommandLine(Args, SA); 4725 4726 // Convert arguments to the return type. 4727 return std::vector<std::string>{Args.begin(), Args.end()}; 4728 } 4729 4730 void CompilerInvocation::resetNonModularOptions() { 4731 getLangOpts()->resetNonModularOptions(); 4732 getPreprocessorOpts().resetNonModularOptions(); 4733 } 4734 4735 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4736 getLangOpts()->ImplicitModules = false; 4737 getHeaderSearchOpts().ImplicitModuleMaps = false; 4738 getHeaderSearchOpts().ModuleCachePath.clear(); 4739 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4740 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4741 // The specific values we canonicalize to for pruning don't affect behaviour, 4742 /// so use the default values so they may be dropped from the command-line. 4743 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4744 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4745 } 4746 4747 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4748 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4749 DiagnosticsEngine &Diags) { 4750 return createVFSFromCompilerInvocation(CI, Diags, 4751 llvm::vfs::getRealFileSystem()); 4752 } 4753 4754 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4755 clang::createVFSFromCompilerInvocation( 4756 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4757 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4758 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4759 Diags, std::move(BaseFS)); 4760 } 4761 4762 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4763 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4764 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4765 if (VFSOverlayFiles.empty()) 4766 return BaseFS; 4767 4768 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4769 // earlier vfs files are on the bottom 4770 for (const auto &File : VFSOverlayFiles) { 4771 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4772 Result->getBufferForFile(File); 4773 if (!Buffer) { 4774 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4775 continue; 4776 } 4777 4778 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4779 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4780 /*DiagContext*/ nullptr, Result); 4781 if (!FS) { 4782 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4783 continue; 4784 } 4785 4786 Result = FS; 4787 } 4788 return Result; 4789 } 4790