1 //===--- 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "TestModuleFileExtension.h" 11 #include "clang/Frontend/CompilerInvocation.h" 12 #include "clang/Basic/FileManager.h" 13 #include "clang/Basic/Version.h" 14 #include "clang/Config/config.h" 15 #include "clang/Driver/DriverDiagnostic.h" 16 #include "clang/Driver/Options.h" 17 #include "clang/Driver/Util.h" 18 #include "clang/Frontend/FrontendDiagnostic.h" 19 #include "clang/Frontend/LangStandard.h" 20 #include "clang/Frontend/Utils.h" 21 #include "clang/Lex/HeaderSearchOptions.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "clang/Serialization/ModuleFileExtension.h" 24 #include "llvm/ADT/Hashing.h" 25 #include "llvm/ADT/STLExtras.h" 26 #include "llvm/ADT/SmallVector.h" 27 #include "llvm/ADT/StringExtras.h" 28 #include "llvm/ADT/StringSwitch.h" 29 #include "llvm/ADT/Triple.h" 30 #include "llvm/Linker/Linker.h" 31 #include "llvm/Option/Arg.h" 32 #include "llvm/Option/ArgList.h" 33 #include "llvm/Option/OptTable.h" 34 #include "llvm/Option/Option.h" 35 #include "llvm/Support/CodeGen.h" 36 #include "llvm/Support/ErrorHandling.h" 37 #include "llvm/Support/FileSystem.h" 38 #include "llvm/Support/Host.h" 39 #include "llvm/Support/Path.h" 40 #include "llvm/Support/Process.h" 41 #include "llvm/Target/TargetOptions.h" 42 #include <atomic> 43 #include <memory> 44 #include <sys/stat.h> 45 #include <system_error> 46 using namespace clang; 47 48 //===----------------------------------------------------------------------===// 49 // Initialization. 50 //===----------------------------------------------------------------------===// 51 52 CompilerInvocationBase::CompilerInvocationBase() 53 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 54 DiagnosticOpts(new DiagnosticOptions()), 55 HeaderSearchOpts(new HeaderSearchOptions()), 56 PreprocessorOpts(new PreprocessorOptions()) {} 57 58 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 59 : RefCountedBase<CompilerInvocation>(), 60 LangOpts(new LangOptions(*X.getLangOpts())), 61 TargetOpts(new TargetOptions(X.getTargetOpts())), 62 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 63 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 64 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 65 66 CompilerInvocationBase::~CompilerInvocationBase() {} 67 68 //===----------------------------------------------------------------------===// 69 // Deserialization (from args) 70 //===----------------------------------------------------------------------===// 71 72 using namespace clang::driver; 73 using namespace clang::driver::options; 74 using namespace llvm::opt; 75 76 // 77 78 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 79 DiagnosticsEngine &Diags) { 80 unsigned DefaultOpt = 0; 81 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 82 DefaultOpt = 2; 83 84 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 85 if (A->getOption().matches(options::OPT_O0)) 86 return 0; 87 88 if (A->getOption().matches(options::OPT_Ofast)) 89 return 3; 90 91 assert (A->getOption().matches(options::OPT_O)); 92 93 StringRef S(A->getValue()); 94 if (S == "s" || S == "z" || S.empty()) 95 return 2; 96 97 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 98 } 99 100 return DefaultOpt; 101 } 102 103 static unsigned getOptimizationLevelSize(ArgList &Args) { 104 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 105 if (A->getOption().matches(options::OPT_O)) { 106 switch (A->getValue()[0]) { 107 default: 108 return 0; 109 case 's': 110 return 1; 111 case 'z': 112 return 2; 113 } 114 } 115 } 116 return 0; 117 } 118 119 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 120 OptSpecifier GroupWithValue, 121 std::vector<std::string> &Diagnostics) { 122 for (Arg *A : Args.filtered(Group)) { 123 if (A->getOption().getKind() == Option::FlagClass) { 124 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 125 // its name (minus the "W" or "R" at the beginning) to the warning list. 126 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 127 } else if (A->getOption().matches(GroupWithValue)) { 128 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 129 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 130 } else { 131 // Otherwise, add its value (for OPT_W_Joined and similar). 132 for (const char *Arg : A->getValues()) 133 Diagnostics.emplace_back(Arg); 134 } 135 } 136 } 137 138 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 139 DiagnosticsEngine &Diags) { 140 using namespace options; 141 bool Success = true; 142 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 143 StringRef Name = A->getValue(); 144 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 145 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 146 .Case(CMDFLAG, NAME##Model) 147 #include "clang/StaticAnalyzer/Core/Analyses.def" 148 .Default(NumStores); 149 if (Value == NumStores) { 150 Diags.Report(diag::err_drv_invalid_value) 151 << A->getAsString(Args) << Name; 152 Success = false; 153 } else { 154 Opts.AnalysisStoreOpt = Value; 155 } 156 } 157 158 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 159 StringRef Name = A->getValue(); 160 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 161 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 162 .Case(CMDFLAG, NAME##Model) 163 #include "clang/StaticAnalyzer/Core/Analyses.def" 164 .Default(NumConstraints); 165 if (Value == NumConstraints) { 166 Diags.Report(diag::err_drv_invalid_value) 167 << A->getAsString(Args) << Name; 168 Success = false; 169 } else { 170 Opts.AnalysisConstraintsOpt = Value; 171 } 172 } 173 174 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 175 StringRef Name = A->getValue(); 176 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 177 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 178 .Case(CMDFLAG, PD_##NAME) 179 #include "clang/StaticAnalyzer/Core/Analyses.def" 180 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 181 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 182 Diags.Report(diag::err_drv_invalid_value) 183 << A->getAsString(Args) << Name; 184 Success = false; 185 } else { 186 Opts.AnalysisDiagOpt = Value; 187 } 188 } 189 190 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 191 StringRef Name = A->getValue(); 192 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 193 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 194 .Case(CMDFLAG, NAME) 195 #include "clang/StaticAnalyzer/Core/Analyses.def" 196 .Default(NumPurgeModes); 197 if (Value == NumPurgeModes) { 198 Diags.Report(diag::err_drv_invalid_value) 199 << A->getAsString(Args) << Name; 200 Success = false; 201 } else { 202 Opts.AnalysisPurgeOpt = Value; 203 } 204 } 205 206 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 207 StringRef Name = A->getValue(); 208 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 209 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 210 .Case(CMDFLAG, NAME) 211 #include "clang/StaticAnalyzer/Core/Analyses.def" 212 .Default(NumInliningModes); 213 if (Value == NumInliningModes) { 214 Diags.Report(diag::err_drv_invalid_value) 215 << A->getAsString(Args) << Name; 216 Success = false; 217 } else { 218 Opts.InliningMode = Value; 219 } 220 } 221 222 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 223 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 224 225 Opts.visualizeExplodedGraphWithGraphViz = 226 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 227 Opts.visualizeExplodedGraphWithUbiGraph = 228 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 229 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 230 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 231 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 232 Opts.AnalyzeNestedBlocks = 233 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 234 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 235 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 236 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 237 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 238 Opts.maxBlockVisitOnPath = 239 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 240 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 241 Opts.InlineMaxStackDepth = 242 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 243 Opts.InlineMaxStackDepth, Diags); 244 245 Opts.CheckersControlList.clear(); 246 for (const Arg *A : 247 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 248 A->claim(); 249 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 250 // We can have a list of comma separated checker names, e.g: 251 // '-analyzer-checker=cocoa,unix' 252 StringRef checkerList = A->getValue(); 253 SmallVector<StringRef, 4> checkers; 254 checkerList.split(checkers, ","); 255 for (StringRef checker : checkers) 256 Opts.CheckersControlList.emplace_back(checker, enable); 257 } 258 259 // Go through the analyzer configuration options. 260 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 261 A->claim(); 262 // We can have a list of comma separated config names, e.g: 263 // '-analyzer-config key1=val1,key2=val2' 264 StringRef configList = A->getValue(); 265 SmallVector<StringRef, 4> configVals; 266 configList.split(configVals, ","); 267 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 268 StringRef key, val; 269 std::tie(key, val) = configVals[i].split("="); 270 if (val.empty()) { 271 Diags.Report(SourceLocation(), 272 diag::err_analyzer_config_no_value) << configVals[i]; 273 Success = false; 274 break; 275 } 276 if (val.find('=') != StringRef::npos) { 277 Diags.Report(SourceLocation(), 278 diag::err_analyzer_config_multiple_values) 279 << configVals[i]; 280 Success = false; 281 break; 282 } 283 Opts.Config[key] = val; 284 } 285 } 286 287 return Success; 288 } 289 290 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 291 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 292 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 293 return true; 294 } 295 296 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 297 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 298 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 299 } 300 301 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 302 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 303 StringRef Value = A->getValue(); 304 if (Value == "small" || Value == "kernel" || Value == "medium" || 305 Value == "large") 306 return Value; 307 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 308 } 309 return "default"; 310 } 311 312 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 313 /// It returns a pointer to the newly generated Regex instance. 314 static std::shared_ptr<llvm::Regex> 315 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 316 Arg *RpassArg) { 317 StringRef Val = RpassArg->getValue(); 318 std::string RegexError; 319 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 320 if (!Pattern->isValid(RegexError)) { 321 Diags.Report(diag::err_drv_optimization_remark_pattern) 322 << RegexError << RpassArg->getAsString(Args); 323 Pattern.reset(); 324 } 325 return Pattern; 326 } 327 328 static bool parseDiagnosticLevelMask(StringRef FlagName, 329 const std::vector<std::string> &Levels, 330 DiagnosticsEngine *Diags, 331 DiagnosticLevelMask &M) { 332 bool Success = true; 333 for (const auto &Level : Levels) { 334 DiagnosticLevelMask const PM = 335 llvm::StringSwitch<DiagnosticLevelMask>(Level) 336 .Case("note", DiagnosticLevelMask::Note) 337 .Case("remark", DiagnosticLevelMask::Remark) 338 .Case("warning", DiagnosticLevelMask::Warning) 339 .Case("error", DiagnosticLevelMask::Error) 340 .Default(DiagnosticLevelMask::None); 341 if (PM == DiagnosticLevelMask::None) { 342 Success = false; 343 if (Diags) 344 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 345 } 346 M = M | PM; 347 } 348 return Success; 349 } 350 351 static void parseSanitizerKinds(StringRef FlagName, 352 const std::vector<std::string> &Sanitizers, 353 DiagnosticsEngine &Diags, SanitizerSet &S) { 354 for (const auto &Sanitizer : Sanitizers) { 355 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 356 if (K == 0) 357 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 358 else 359 S.set(K, true); 360 } 361 } 362 363 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 364 DiagnosticsEngine &Diags, 365 const TargetOptions &TargetOpts) { 366 using namespace options; 367 bool Success = true; 368 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 369 370 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 371 // TODO: This could be done in Driver 372 unsigned MaxOptLevel = 3; 373 if (OptimizationLevel > MaxOptLevel) { 374 // If the optimization level is not supported, fall back on the default 375 // optimization 376 Diags.Report(diag::warn_drv_optimization_value) 377 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 378 OptimizationLevel = MaxOptLevel; 379 } 380 Opts.OptimizationLevel = OptimizationLevel; 381 382 // We must always run at least the always inlining pass. 383 Opts.setInlining( 384 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 385 : CodeGenOptions::OnlyAlwaysInlining); 386 // -fno-inline-functions overrides OptimizationLevel > 1. 387 Opts.NoInline = Args.hasArg(OPT_fno_inline); 388 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 389 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 390 391 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 392 StringRef Name = A->getValue(); 393 if (Name == "Accelerate") 394 Opts.setVecLib(CodeGenOptions::Accelerate); 395 else if (Name == "none") 396 Opts.setVecLib(CodeGenOptions::NoLibrary); 397 else 398 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 399 } 400 401 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 402 Opts.setDebugInfo( 403 llvm::StringSwitch<CodeGenOptions::DebugInfoKind>(A->getValue()) 404 .Case("line-tables-only", CodeGenOptions::DebugLineTablesOnly) 405 .Case("limited", CodeGenOptions::LimitedDebugInfo) 406 .Case("standalone", CodeGenOptions::FullDebugInfo)); 407 } 408 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 409 Opts.setDebuggerTuning( 410 llvm::StringSwitch<CodeGenOptions::DebuggerKind>(A->getValue()) 411 .Case("gdb", CodeGenOptions::DebuggerKindGDB) 412 .Case("lldb", CodeGenOptions::DebuggerKindLLDB) 413 .Case("sce", CodeGenOptions::DebuggerKindSCE)); 414 } 415 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 416 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 417 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 418 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 419 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 420 Opts.DebugExplicitImport = Triple.isPS4CPU(); 421 422 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 423 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 424 425 if (const Arg *A = 426 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 427 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 428 429 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 430 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 431 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 432 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 433 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 434 OPT_fuse_register_sized_bitfield_access); 435 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 436 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 437 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 438 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 439 Opts.NoCommon = Args.hasArg(OPT_fno_common); 440 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 441 Opts.OptimizeSize = getOptimizationLevelSize(Args); 442 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 443 Args.hasArg(OPT_ffreestanding)); 444 Opts.UnrollLoops = 445 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 446 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 447 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 448 449 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 450 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 451 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 452 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) || 453 Args.hasArg(OPT_fprofile_instr_generate_EQ); 454 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ); 455 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 456 Opts.CoverageMapping = 457 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 458 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 459 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 460 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 461 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 462 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 463 Opts.CodeModel = getCodeModel(Args, Diags); 464 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 465 Opts.DisableFPElim = 466 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 467 Opts.DisableFree = Args.hasArg(OPT_disable_free); 468 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 469 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 470 if (Arg *A = Args.getLastArg(OPT_meabi)) { 471 StringRef Value = A->getValue(); 472 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 473 .Case("default", llvm::EABI::Default) 474 .Case("4", llvm::EABI::EABI4) 475 .Case("5", llvm::EABI::EABI5) 476 .Case("gnu", llvm::EABI::GNU) 477 .Default(llvm::EABI::Unknown); 478 if (EABIVersion == llvm::EABI::Unknown) 479 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 480 << Value; 481 else 482 Opts.EABIVersion = Value; 483 } 484 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 485 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 486 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 487 Args.hasArg(OPT_cl_finite_math_only) || 488 Args.hasArg(OPT_cl_fast_relaxed_math)); 489 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 490 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 491 Args.hasArg(OPT_cl_finite_math_only) || 492 Args.hasArg(OPT_cl_fast_relaxed_math)); 493 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros); 494 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 495 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 496 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 497 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 498 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 499 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 500 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 501 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 502 Opts.IncrementalLinkerCompatible = 503 Args.hasArg(OPT_mincremental_linker_compatible); 504 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 505 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 506 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 507 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 508 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 509 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 510 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 511 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 512 Args.hasArg(OPT_cl_fast_relaxed_math); 513 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 514 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 515 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 516 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 517 Diags.Report(diag::err_drv_invalid_value) 518 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 519 << Opts.ThreadModel; 520 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 521 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 522 523 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 524 OPT_fno_function_sections, false); 525 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 526 OPT_fno_data_sections, false); 527 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 528 OPT_fno_unique_section_names, true); 529 530 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 531 532 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 533 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 534 Opts.EmitFunctionSummary = A && A->containsValue("thin"); 535 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 536 if (IK != IK_LLVM_IR) 537 Diags.Report(diag::err_drv_argument_only_allowed_with) 538 << A->getAsString(Args) << "-x ir"; 539 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 540 } 541 542 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 543 544 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 545 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 546 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 547 548 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 549 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 550 551 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 552 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 553 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 554 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 555 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 556 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 557 Opts.CoverageNoFunctionNamesInData = 558 Args.hasArg(OPT_coverage_no_function_names_in_data); 559 Opts.CoverageExitBlockBeforeBody = 560 Args.hasArg(OPT_coverage_exit_block_before_body); 561 if (Args.hasArg(OPT_coverage_version_EQ)) { 562 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 563 if (CoverageVersion.size() != 4) { 564 Diags.Report(diag::err_drv_invalid_value) 565 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 566 << CoverageVersion; 567 } else { 568 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 569 } 570 } 571 } 572 573 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 574 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 575 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 576 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 577 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 578 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 579 unsigned LinkFlags = llvm::Linker::Flags::None; 580 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 581 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 582 llvm::Linker::Flags::InternalizeLinkedSymbols; 583 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 584 } 585 Opts.SanitizeCoverageType = 586 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 587 Opts.SanitizeCoverageIndirectCalls = 588 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 589 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 590 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 591 Opts.SanitizeCoverage8bitCounters = 592 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 593 Opts.SanitizeMemoryTrackOrigins = 594 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 595 Opts.SanitizeMemoryUseAfterDtor = 596 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 597 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 598 Opts.SSPBufferSize = 599 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 600 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 601 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 602 StringRef Val = A->getValue(); 603 unsigned StackAlignment = Opts.StackAlignment; 604 Val.getAsInteger(10, StackAlignment); 605 Opts.StackAlignment = StackAlignment; 606 } 607 608 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 609 StringRef Val = A->getValue(); 610 unsigned StackProbeSize = Opts.StackProbeSize; 611 Val.getAsInteger(0, StackProbeSize); 612 Opts.StackProbeSize = StackProbeSize; 613 } 614 615 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 616 StringRef Name = A->getValue(); 617 unsigned Method = llvm::StringSwitch<unsigned>(Name) 618 .Case("legacy", CodeGenOptions::Legacy) 619 .Case("non-legacy", CodeGenOptions::NonLegacy) 620 .Case("mixed", CodeGenOptions::Mixed) 621 .Default(~0U); 622 if (Method == ~0U) { 623 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 624 Success = false; 625 } else { 626 Opts.setObjCDispatchMethod( 627 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 628 } 629 } 630 631 Opts.EmulatedTLS = 632 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 633 634 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 635 StringRef Name = A->getValue(); 636 unsigned Model = llvm::StringSwitch<unsigned>(Name) 637 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 638 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 639 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 640 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 641 .Default(~0U); 642 if (Model == ~0U) { 643 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 644 Success = false; 645 } else { 646 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 647 } 648 } 649 650 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 651 StringRef Val = A->getValue(); 652 if (Val == "fast") 653 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 654 else if (Val == "on") 655 Opts.setFPContractMode(CodeGenOptions::FPC_On); 656 else if (Val == "off") 657 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 658 else 659 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 660 } 661 662 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 663 if (A->getOption().matches(OPT_fpcc_struct_return)) { 664 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 665 } else { 666 assert(A->getOption().matches(OPT_freg_struct_return)); 667 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 668 } 669 } 670 671 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 672 bool NeedLocTracking = false; 673 674 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 675 Opts.OptimizationRemarkPattern = 676 GenerateOptimizationRemarkRegex(Diags, Args, A); 677 NeedLocTracking = true; 678 } 679 680 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 681 Opts.OptimizationRemarkMissedPattern = 682 GenerateOptimizationRemarkRegex(Diags, Args, A); 683 NeedLocTracking = true; 684 } 685 686 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 687 Opts.OptimizationRemarkAnalysisPattern = 688 GenerateOptimizationRemarkRegex(Diags, Args, A); 689 NeedLocTracking = true; 690 } 691 692 // If the user requested to use a sample profile for PGO, then the 693 // backend will need to track source location information so the profile 694 // can be incorporated into the IR. 695 if (!Opts.SampleProfileFile.empty()) 696 NeedLocTracking = true; 697 698 // If the user requested a flag that requires source locations available in 699 // the backend, make sure that the backend tracks source location information. 700 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 701 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 702 703 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 704 705 // Parse -fsanitize-recover= arguments. 706 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 707 parseSanitizerKinds("-fsanitize-recover=", 708 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 709 Opts.SanitizeRecover); 710 parseSanitizerKinds("-fsanitize-trap=", 711 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 712 Opts.SanitizeTrap); 713 714 Opts.CudaGpuBinaryFileNames = 715 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 716 717 return Success; 718 } 719 720 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 721 ArgList &Args) { 722 using namespace options; 723 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 724 Opts.Targets = Args.getAllArgValues(OPT_MT); 725 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 726 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 727 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 728 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 729 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 730 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 731 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 732 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 733 Opts.ModuleDependencyOutputDir = 734 Args.getLastArgValue(OPT_module_dependency_dir); 735 if (Args.hasArg(OPT_MV)) 736 Opts.OutputFormat = DependencyOutputFormat::NMake; 737 // Add sanitizer blacklists as extra dependencies. 738 // They won't be discovered by the regular preprocessor, so 739 // we let make / ninja to know about this implicit dependency. 740 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 741 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 742 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 743 ModuleFiles.end()); 744 } 745 746 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 747 DiagnosticsEngine *Diags) { 748 using namespace options; 749 bool Success = true; 750 751 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 752 if (Arg *A = 753 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 754 Opts.DiagnosticSerializationFile = A->getValue(); 755 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 756 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 757 Opts.Pedantic = Args.hasArg(OPT_pedantic); 758 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 759 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 760 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 761 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 762 OPT_fno_show_column, 763 /*Default=*/true); 764 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 765 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 766 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 767 768 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 769 770 // Default behavior is to not to show note include stacks. 771 Opts.ShowNoteIncludeStack = false; 772 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 773 OPT_fno_diagnostics_show_note_include_stack)) 774 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 775 Opts.ShowNoteIncludeStack = true; 776 777 StringRef ShowOverloads = 778 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 779 if (ShowOverloads == "best") 780 Opts.setShowOverloads(Ovl_Best); 781 else if (ShowOverloads == "all") 782 Opts.setShowOverloads(Ovl_All); 783 else { 784 Success = false; 785 if (Diags) 786 Diags->Report(diag::err_drv_invalid_value) 787 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 788 << ShowOverloads; 789 } 790 791 StringRef ShowCategory = 792 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 793 if (ShowCategory == "none") 794 Opts.ShowCategories = 0; 795 else if (ShowCategory == "id") 796 Opts.ShowCategories = 1; 797 else if (ShowCategory == "name") 798 Opts.ShowCategories = 2; 799 else { 800 Success = false; 801 if (Diags) 802 Diags->Report(diag::err_drv_invalid_value) 803 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 804 << ShowCategory; 805 } 806 807 StringRef Format = 808 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 809 if (Format == "clang") 810 Opts.setFormat(DiagnosticOptions::Clang); 811 else if (Format == "msvc") 812 Opts.setFormat(DiagnosticOptions::MSVC); 813 else if (Format == "msvc-fallback") { 814 Opts.setFormat(DiagnosticOptions::MSVC); 815 Opts.CLFallbackMode = true; 816 } else if (Format == "vi") 817 Opts.setFormat(DiagnosticOptions::Vi); 818 else { 819 Success = false; 820 if (Diags) 821 Diags->Report(diag::err_drv_invalid_value) 822 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 823 << Format; 824 } 825 826 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 827 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 828 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 829 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 830 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 831 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 832 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 833 Diags, DiagMask); 834 if (Args.hasArg(OPT_verify_ignore_unexpected)) 835 DiagMask = DiagnosticLevelMask::All; 836 Opts.setVerifyIgnoreUnexpected(DiagMask); 837 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 838 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 839 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 840 Opts.MacroBacktraceLimit = 841 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 842 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 843 Opts.TemplateBacktraceLimit = getLastArgIntValue( 844 Args, OPT_ftemplate_backtrace_limit, 845 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 846 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 847 Args, OPT_fconstexpr_backtrace_limit, 848 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 849 Opts.SpellCheckingLimit = getLastArgIntValue( 850 Args, OPT_fspell_checking_limit, 851 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 852 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 853 DiagnosticOptions::DefaultTabStop, Diags); 854 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 855 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 856 if (Diags) 857 Diags->Report(diag::warn_ignoring_ftabstop_value) 858 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 859 } 860 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 861 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 862 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 863 864 return Success; 865 } 866 867 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 868 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 869 } 870 871 /// Parse the argument to the -ftest-module-file-extension 872 /// command-line argument. 873 /// 874 /// \returns true on error, false on success. 875 static bool parseTestModuleFileExtensionArg(StringRef Arg, 876 std::string &BlockName, 877 unsigned &MajorVersion, 878 unsigned &MinorVersion, 879 bool &Hashed, 880 std::string &UserInfo) { 881 SmallVector<StringRef, 5> Args; 882 Arg.split(Args, ':', 5); 883 if (Args.size() < 5) 884 return true; 885 886 BlockName = Args[0]; 887 if (Args[1].getAsInteger(10, MajorVersion)) return true; 888 if (Args[2].getAsInteger(10, MinorVersion)) return true; 889 if (Args[3].getAsInteger(2, Hashed)) return true; 890 if (Args.size() > 4) 891 UserInfo = Args[4]; 892 return false; 893 } 894 895 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 896 DiagnosticsEngine &Diags) { 897 using namespace options; 898 Opts.ProgramAction = frontend::ParseSyntaxOnly; 899 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 900 switch (A->getOption().getID()) { 901 default: 902 llvm_unreachable("Invalid option in group!"); 903 case OPT_ast_list: 904 Opts.ProgramAction = frontend::ASTDeclList; break; 905 case OPT_ast_dump: 906 case OPT_ast_dump_lookups: 907 Opts.ProgramAction = frontend::ASTDump; break; 908 case OPT_ast_print: 909 Opts.ProgramAction = frontend::ASTPrint; break; 910 case OPT_ast_view: 911 Opts.ProgramAction = frontend::ASTView; break; 912 case OPT_dump_raw_tokens: 913 Opts.ProgramAction = frontend::DumpRawTokens; break; 914 case OPT_dump_tokens: 915 Opts.ProgramAction = frontend::DumpTokens; break; 916 case OPT_S: 917 Opts.ProgramAction = frontend::EmitAssembly; break; 918 case OPT_emit_llvm_bc: 919 Opts.ProgramAction = frontend::EmitBC; break; 920 case OPT_emit_html: 921 Opts.ProgramAction = frontend::EmitHTML; break; 922 case OPT_emit_llvm: 923 Opts.ProgramAction = frontend::EmitLLVM; break; 924 case OPT_emit_llvm_only: 925 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 926 case OPT_emit_codegen_only: 927 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 928 case OPT_emit_obj: 929 Opts.ProgramAction = frontend::EmitObj; break; 930 case OPT_fixit_EQ: 931 Opts.FixItSuffix = A->getValue(); 932 // fall-through! 933 case OPT_fixit: 934 Opts.ProgramAction = frontend::FixIt; break; 935 case OPT_emit_module: 936 Opts.ProgramAction = frontend::GenerateModule; break; 937 case OPT_emit_pch: 938 Opts.ProgramAction = frontend::GeneratePCH; break; 939 case OPT_emit_pth: 940 Opts.ProgramAction = frontend::GeneratePTH; break; 941 case OPT_init_only: 942 Opts.ProgramAction = frontend::InitOnly; break; 943 case OPT_fsyntax_only: 944 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 945 case OPT_module_file_info: 946 Opts.ProgramAction = frontend::ModuleFileInfo; break; 947 case OPT_verify_pch: 948 Opts.ProgramAction = frontend::VerifyPCH; break; 949 case OPT_print_decl_contexts: 950 Opts.ProgramAction = frontend::PrintDeclContext; break; 951 case OPT_print_preamble: 952 Opts.ProgramAction = frontend::PrintPreamble; break; 953 case OPT_E: 954 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 955 case OPT_rewrite_macros: 956 Opts.ProgramAction = frontend::RewriteMacros; break; 957 case OPT_rewrite_objc: 958 Opts.ProgramAction = frontend::RewriteObjC; break; 959 case OPT_rewrite_test: 960 Opts.ProgramAction = frontend::RewriteTest; break; 961 case OPT_analyze: 962 Opts.ProgramAction = frontend::RunAnalysis; break; 963 case OPT_migrate: 964 Opts.ProgramAction = frontend::MigrateSource; break; 965 case OPT_Eonly: 966 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 967 } 968 } 969 970 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 971 Opts.Plugins.emplace_back(A->getValue(0)); 972 Opts.ProgramAction = frontend::PluginAction; 973 Opts.ActionName = A->getValue(); 974 975 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 976 if (AA->getValue(0) == Opts.ActionName) 977 Opts.PluginArgs.emplace_back(AA->getValue(1)); 978 } 979 980 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 981 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 982 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) 983 for (const Arg *A : Args.filtered(OPT_plugin_arg)) 984 if (A->getValue(0) == Opts.AddPluginActions[i]) 985 Opts.AddPluginArgs[i].emplace_back(A->getValue(1)); 986 987 for (const std::string &Arg : 988 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 989 std::string BlockName; 990 unsigned MajorVersion; 991 unsigned MinorVersion; 992 bool Hashed; 993 std::string UserInfo; 994 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 995 MinorVersion, Hashed, UserInfo)) { 996 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 997 998 continue; 999 } 1000 1001 // Add the testing module file extension. 1002 Opts.ModuleFileExtensions.push_back( 1003 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, 1004 Hashed, UserInfo)); 1005 } 1006 1007 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1008 Opts.CodeCompletionAt = 1009 ParsedSourceLocation::FromString(A->getValue()); 1010 if (Opts.CodeCompletionAt.FileName.empty()) 1011 Diags.Report(diag::err_drv_invalid_value) 1012 << A->getAsString(Args) << A->getValue(); 1013 } 1014 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1015 1016 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1017 Opts.Plugins = Args.getAllArgValues(OPT_load); 1018 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1019 Opts.ShowHelp = Args.hasArg(OPT_help); 1020 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1021 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1022 Opts.ShowVersion = Args.hasArg(OPT_version); 1023 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1024 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1025 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1026 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1027 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1028 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1029 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1030 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1031 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1032 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1033 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1034 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1035 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1036 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1037 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1038 1039 Opts.CodeCompleteOpts.IncludeMacros 1040 = Args.hasArg(OPT_code_completion_macros); 1041 Opts.CodeCompleteOpts.IncludeCodePatterns 1042 = Args.hasArg(OPT_code_completion_patterns); 1043 Opts.CodeCompleteOpts.IncludeGlobals 1044 = !Args.hasArg(OPT_no_code_completion_globals); 1045 Opts.CodeCompleteOpts.IncludeBriefComments 1046 = Args.hasArg(OPT_code_completion_brief_comments); 1047 1048 Opts.OverrideRecordLayoutsFile 1049 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1050 Opts.AuxTriple = 1051 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1052 1053 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1054 OPT_arcmt_modify, 1055 OPT_arcmt_migrate)) { 1056 switch (A->getOption().getID()) { 1057 default: 1058 llvm_unreachable("missed a case"); 1059 case OPT_arcmt_check: 1060 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1061 break; 1062 case OPT_arcmt_modify: 1063 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1064 break; 1065 case OPT_arcmt_migrate: 1066 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1067 break; 1068 } 1069 } 1070 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1071 Opts.ARCMTMigrateReportOut 1072 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1073 Opts.ARCMTMigrateEmitARCErrors 1074 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1075 1076 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1077 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1078 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1079 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1080 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1081 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1082 if (Args.hasArg(OPT_objcmt_migrate_property)) 1083 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1084 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1085 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1086 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1087 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1088 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1089 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1090 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1091 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1092 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1093 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1094 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1095 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1096 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1097 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1098 if (Args.hasArg(OPT_objcmt_atomic_property)) 1099 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1100 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1101 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1102 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1103 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1104 if (Args.hasArg(OPT_objcmt_migrate_all)) 1105 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1106 1107 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1108 1109 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1110 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1111 Diags.Report(diag::err_drv_argument_not_allowed_with) 1112 << "ARC migration" << "ObjC migration"; 1113 } 1114 1115 InputKind DashX = IK_None; 1116 if (const Arg *A = Args.getLastArg(OPT_x)) { 1117 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1118 .Case("c", IK_C) 1119 .Case("cl", IK_OpenCL) 1120 .Case("cuda", IK_CUDA) 1121 .Case("c++", IK_CXX) 1122 .Case("objective-c", IK_ObjC) 1123 .Case("objective-c++", IK_ObjCXX) 1124 .Case("cpp-output", IK_PreprocessedC) 1125 .Case("assembler-with-cpp", IK_Asm) 1126 .Case("c++-cpp-output", IK_PreprocessedCXX) 1127 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1128 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1129 .Case("objc-cpp-output", IK_PreprocessedObjC) 1130 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1131 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1132 .Case("c-header", IK_C) 1133 .Case("cl-header", IK_OpenCL) 1134 .Case("objective-c-header", IK_ObjC) 1135 .Case("c++-header", IK_CXX) 1136 .Case("objective-c++-header", IK_ObjCXX) 1137 .Cases("ast", "pcm", IK_AST) 1138 .Case("ir", IK_LLVM_IR) 1139 .Default(IK_None); 1140 if (DashX == IK_None) 1141 Diags.Report(diag::err_drv_invalid_value) 1142 << A->getAsString(Args) << A->getValue(); 1143 } 1144 1145 // '-' is the default input if none is given. 1146 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1147 Opts.Inputs.clear(); 1148 if (Inputs.empty()) 1149 Inputs.push_back("-"); 1150 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1151 InputKind IK = DashX; 1152 if (IK == IK_None) { 1153 IK = FrontendOptions::getInputKindForExtension( 1154 StringRef(Inputs[i]).rsplit('.').second); 1155 // FIXME: Remove this hack. 1156 if (i == 0) 1157 DashX = IK; 1158 } 1159 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1160 } 1161 1162 return DashX; 1163 } 1164 1165 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1166 void *MainAddr) { 1167 std::string ClangExecutable = 1168 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1169 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1170 1171 // Compute the path to the resource directory. 1172 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1173 SmallString<128> P(Dir); 1174 if (ClangResourceDir != "") 1175 llvm::sys::path::append(P, ClangResourceDir); 1176 else 1177 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1178 "clang", CLANG_VERSION_STRING); 1179 1180 return P.str(); 1181 } 1182 1183 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1184 using namespace options; 1185 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1186 Opts.Verbose = Args.hasArg(OPT_v); 1187 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1188 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1189 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1190 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1191 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1192 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1193 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1194 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1195 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1196 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1197 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1198 Opts.ModuleCachePruneInterval = 1199 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1200 Opts.ModuleCachePruneAfter = 1201 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1202 Opts.ModulesValidateOncePerBuildSession = 1203 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1204 Opts.BuildSessionTimestamp = 1205 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1206 Opts.ModulesValidateSystemHeaders = 1207 Args.hasArg(OPT_fmodules_validate_system_headers); 1208 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1209 Opts.ModuleFormat = A->getValue(); 1210 1211 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1212 StringRef MacroDef = A->getValue(); 1213 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1214 } 1215 1216 // Add -I..., -F..., and -index-header-map options in order. 1217 bool IsIndexHeaderMap = false; 1218 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1219 if (A->getOption().matches(OPT_index_header_map)) { 1220 // -index-header-map applies to the next -I or -F. 1221 IsIndexHeaderMap = true; 1222 continue; 1223 } 1224 1225 frontend::IncludeDirGroup Group = 1226 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1227 1228 Opts.AddPath(A->getValue(), Group, 1229 /*IsFramework=*/A->getOption().matches(OPT_F), true); 1230 IsIndexHeaderMap = false; 1231 } 1232 1233 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1234 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1235 for (const Arg *A : 1236 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1237 if (A->getOption().matches(OPT_iprefix)) 1238 Prefix = A->getValue(); 1239 else if (A->getOption().matches(OPT_iwithprefix)) 1240 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1241 else 1242 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1243 } 1244 1245 for (const Arg *A : Args.filtered(OPT_idirafter)) 1246 Opts.AddPath(A->getValue(), frontend::After, false, true); 1247 for (const Arg *A : Args.filtered(OPT_iquote)) 1248 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1249 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1250 Opts.AddPath(A->getValue(), frontend::System, false, 1251 !A->getOption().matches(OPT_iwithsysroot)); 1252 for (const Arg *A : Args.filtered(OPT_iframework)) 1253 Opts.AddPath(A->getValue(), frontend::System, true, true); 1254 1255 // Add the paths for the various language specific isystem flags. 1256 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1257 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1258 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1259 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1260 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1261 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1262 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1263 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1264 1265 // Add the internal paths from a driver that detects standard include paths. 1266 for (const Arg *A : 1267 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1268 frontend::IncludeDirGroup Group = frontend::System; 1269 if (A->getOption().matches(OPT_internal_externc_isystem)) 1270 Group = frontend::ExternCSystem; 1271 Opts.AddPath(A->getValue(), Group, false, true); 1272 } 1273 1274 // Add the path prefixes which are implicitly treated as being system headers. 1275 for (const Arg *A : 1276 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1277 Opts.AddSystemHeaderPrefix( 1278 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1279 1280 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1281 Opts.AddVFSOverlayFile(A->getValue()); 1282 } 1283 1284 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1285 LangStandard::Kind LangStd) { 1286 // Set some properties which depend solely on the input kind; it would be nice 1287 // to move these to the language standard, and have the driver resolve the 1288 // input kind + language standard. 1289 if (IK == IK_Asm) { 1290 Opts.AsmPreprocessor = 1; 1291 } else if (IK == IK_ObjC || 1292 IK == IK_ObjCXX || 1293 IK == IK_PreprocessedObjC || 1294 IK == IK_PreprocessedObjCXX) { 1295 Opts.ObjC1 = Opts.ObjC2 = 1; 1296 } 1297 1298 if (LangStd == LangStandard::lang_unspecified) { 1299 // Based on the base language, pick one. 1300 switch (IK) { 1301 case IK_None: 1302 case IK_AST: 1303 case IK_LLVM_IR: 1304 llvm_unreachable("Invalid input kind!"); 1305 case IK_OpenCL: 1306 LangStd = LangStandard::lang_opencl; 1307 break; 1308 case IK_CUDA: 1309 case IK_PreprocessedCuda: 1310 LangStd = LangStandard::lang_cuda; 1311 break; 1312 case IK_Asm: 1313 case IK_C: 1314 case IK_PreprocessedC: 1315 case IK_ObjC: 1316 case IK_PreprocessedObjC: 1317 LangStd = LangStandard::lang_gnu11; 1318 break; 1319 case IK_CXX: 1320 case IK_PreprocessedCXX: 1321 case IK_ObjCXX: 1322 case IK_PreprocessedObjCXX: 1323 LangStd = LangStandard::lang_gnucxx98; 1324 break; 1325 } 1326 } 1327 1328 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1329 Opts.LineComment = Std.hasLineComments(); 1330 Opts.C99 = Std.isC99(); 1331 Opts.C11 = Std.isC11(); 1332 Opts.CPlusPlus = Std.isCPlusPlus(); 1333 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1334 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1335 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1336 Opts.Digraphs = Std.hasDigraphs(); 1337 Opts.GNUMode = Std.isGNUMode(); 1338 Opts.GNUInline = Std.isC89(); 1339 Opts.HexFloats = Std.hasHexFloats(); 1340 Opts.ImplicitInt = Std.hasImplicitInt(); 1341 1342 // Set OpenCL Version. 1343 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1344 if (LangStd == LangStandard::lang_opencl) 1345 Opts.OpenCLVersion = 100; 1346 else if (LangStd == LangStandard::lang_opencl11) 1347 Opts.OpenCLVersion = 110; 1348 else if (LangStd == LangStandard::lang_opencl12) 1349 Opts.OpenCLVersion = 120; 1350 else if (LangStd == LangStandard::lang_opencl20) 1351 Opts.OpenCLVersion = 200; 1352 1353 // OpenCL has some additional defaults. 1354 if (Opts.OpenCL) { 1355 Opts.AltiVec = 0; 1356 Opts.ZVector = 0; 1357 Opts.CXXOperatorNames = 1; 1358 Opts.LaxVectorConversions = 0; 1359 Opts.DefaultFPContract = 1; 1360 Opts.NativeHalfType = 1; 1361 } 1362 1363 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1364 LangStd == LangStandard::lang_cuda; 1365 1366 // OpenCL and C++ both have bool, true, false keywords. 1367 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1368 1369 // OpenCL has half keyword 1370 Opts.Half = Opts.OpenCL; 1371 1372 // C++ has wchar_t keyword. 1373 Opts.WChar = Opts.CPlusPlus; 1374 1375 Opts.GNUKeywords = Opts.GNUMode; 1376 Opts.CXXOperatorNames = Opts.CPlusPlus; 1377 1378 Opts.DollarIdents = !Opts.AsmPreprocessor; 1379 } 1380 1381 /// Attempt to parse a visibility value out of the given argument. 1382 static Visibility parseVisibility(Arg *arg, ArgList &args, 1383 DiagnosticsEngine &diags) { 1384 StringRef value = arg->getValue(); 1385 if (value == "default") { 1386 return DefaultVisibility; 1387 } else if (value == "hidden" || value == "internal") { 1388 return HiddenVisibility; 1389 } else if (value == "protected") { 1390 // FIXME: diagnose if target does not support protected visibility 1391 return ProtectedVisibility; 1392 } 1393 1394 diags.Report(diag::err_drv_invalid_value) 1395 << arg->getAsString(args) << value; 1396 return DefaultVisibility; 1397 } 1398 1399 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1400 DiagnosticsEngine &Diags) { 1401 // FIXME: Cleanup per-file based stuff. 1402 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1403 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1404 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1405 #define LANGSTANDARD(id, name, desc, features) \ 1406 .Case(name, LangStandard::lang_##id) 1407 #include "clang/Frontend/LangStandards.def" 1408 .Default(LangStandard::lang_unspecified); 1409 if (LangStd == LangStandard::lang_unspecified) 1410 Diags.Report(diag::err_drv_invalid_value) 1411 << A->getAsString(Args) << A->getValue(); 1412 else { 1413 // Valid standard, check to make sure language and standard are 1414 // compatible. 1415 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1416 switch (IK) { 1417 case IK_C: 1418 case IK_ObjC: 1419 case IK_PreprocessedC: 1420 case IK_PreprocessedObjC: 1421 if (!(Std.isC89() || Std.isC99())) 1422 Diags.Report(diag::err_drv_argument_not_allowed_with) 1423 << A->getAsString(Args) << "C/ObjC"; 1424 break; 1425 case IK_CXX: 1426 case IK_ObjCXX: 1427 case IK_PreprocessedCXX: 1428 case IK_PreprocessedObjCXX: 1429 if (!Std.isCPlusPlus()) 1430 Diags.Report(diag::err_drv_argument_not_allowed_with) 1431 << A->getAsString(Args) << "C++/ObjC++"; 1432 break; 1433 case IK_OpenCL: 1434 if (!Std.isC99()) 1435 Diags.Report(diag::err_drv_argument_not_allowed_with) 1436 << A->getAsString(Args) << "OpenCL"; 1437 break; 1438 case IK_CUDA: 1439 case IK_PreprocessedCuda: 1440 if (!Std.isCPlusPlus()) 1441 Diags.Report(diag::err_drv_argument_not_allowed_with) 1442 << A->getAsString(Args) << "CUDA"; 1443 break; 1444 default: 1445 break; 1446 } 1447 } 1448 } 1449 1450 // -cl-std only applies for OpenCL language standards. 1451 // Override the -std option in this case. 1452 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1453 LangStandard::Kind OpenCLLangStd 1454 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1455 .Case("CL", LangStandard::lang_opencl) 1456 .Case("CL1.1", LangStandard::lang_opencl11) 1457 .Case("CL1.2", LangStandard::lang_opencl12) 1458 .Case("CL2.0", LangStandard::lang_opencl20) 1459 .Default(LangStandard::lang_unspecified); 1460 1461 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1462 Diags.Report(diag::err_drv_invalid_value) 1463 << A->getAsString(Args) << A->getValue(); 1464 } 1465 else 1466 LangStd = OpenCLLangStd; 1467 } 1468 1469 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1470 1471 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1472 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1473 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1474 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1475 // name, as it doesn't seem a useful distinction. 1476 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1477 Opts.GNUKeywords); 1478 1479 if (Args.hasArg(OPT_fno_operator_names)) 1480 Opts.CXXOperatorNames = 0; 1481 1482 if (Args.hasArg(OPT_fcuda_is_device)) 1483 Opts.CUDAIsDevice = 1; 1484 1485 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device)) 1486 Opts.CUDAAllowHostCallsFromHostDevice = 1; 1487 1488 if (Args.hasArg(OPT_fcuda_disable_target_call_checks)) 1489 Opts.CUDADisableTargetCallChecks = 1; 1490 1491 if (Args.hasArg(OPT_fcuda_target_overloads)) 1492 Opts.CUDATargetOverloads = 1; 1493 1494 if (Opts.ObjC1) { 1495 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1496 StringRef value = arg->getValue(); 1497 if (Opts.ObjCRuntime.tryParse(value)) 1498 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1499 } 1500 1501 if (Args.hasArg(OPT_fobjc_gc_only)) 1502 Opts.setGC(LangOptions::GCOnly); 1503 else if (Args.hasArg(OPT_fobjc_gc)) 1504 Opts.setGC(LangOptions::HybridGC); 1505 else if (Args.hasArg(OPT_fobjc_arc)) { 1506 Opts.ObjCAutoRefCount = 1; 1507 if (!Opts.ObjCRuntime.allowsARC()) 1508 Diags.Report(diag::err_arc_unsupported_on_runtime); 1509 } 1510 1511 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1512 // whether the feature is actually enabled. This is predominantly 1513 // determined by -fobjc-runtime, but we allow it to be overridden 1514 // from the command line for testing purposes. 1515 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1516 Opts.ObjCWeakRuntime = 1; 1517 else 1518 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1519 1520 // ObjCWeak determines whether __weak is actually enabled. 1521 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1522 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1523 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1524 assert(!Opts.ObjCWeak); 1525 } else if (Opts.getGC() != LangOptions::NonGC) { 1526 Diags.Report(diag::err_objc_weak_with_gc); 1527 } else if (!Opts.ObjCWeakRuntime) { 1528 Diags.Report(diag::err_objc_weak_unsupported); 1529 } else { 1530 Opts.ObjCWeak = 1; 1531 } 1532 } else if (Opts.ObjCAutoRefCount) { 1533 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1534 } 1535 1536 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1537 Opts.ObjCInferRelatedResultType = 0; 1538 1539 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1540 Opts.ObjCSubscriptingLegacyRuntime = 1541 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1542 } 1543 1544 if (Args.hasArg(OPT_fgnu89_inline)) { 1545 if (Opts.CPlusPlus) 1546 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1547 << "C++/ObjC++"; 1548 else 1549 Opts.GNUInline = 1; 1550 } 1551 1552 if (Args.hasArg(OPT_fapple_kext)) { 1553 if (!Opts.CPlusPlus) 1554 Diags.Report(diag::warn_c_kext); 1555 else 1556 Opts.AppleKext = 1; 1557 } 1558 1559 if (Args.hasArg(OPT_print_ivar_layout)) 1560 Opts.ObjCGCBitmapPrint = 1; 1561 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1562 Opts.NoConstantCFStrings = 1; 1563 1564 if (Args.hasArg(OPT_faltivec)) 1565 Opts.AltiVec = 1; 1566 1567 if (Args.hasArg(OPT_fzvector)) 1568 Opts.ZVector = 1; 1569 1570 if (Args.hasArg(OPT_pthread)) 1571 Opts.POSIXThreads = 1; 1572 1573 // The value-visibility mode defaults to "default". 1574 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1575 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1576 } else { 1577 Opts.setValueVisibilityMode(DefaultVisibility); 1578 } 1579 1580 // The type-visibility mode defaults to the value-visibility mode. 1581 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1582 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1583 } else { 1584 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1585 } 1586 1587 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1588 Opts.InlineVisibilityHidden = 1; 1589 1590 if (Args.hasArg(OPT_ftrapv)) { 1591 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1592 // Set the handler, if one is specified. 1593 Opts.OverflowHandler = 1594 Args.getLastArgValue(OPT_ftrapv_handler); 1595 } 1596 else if (Args.hasArg(OPT_fwrapv)) 1597 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1598 1599 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1600 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1601 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1602 Opts.MSCompatibilityVersion = 0; 1603 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1604 VersionTuple VT; 1605 if (VT.tryParse(A->getValue())) 1606 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1607 << A->getValue(); 1608 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1609 VT.getMinor().getValueOr(0) * 100000 + 1610 VT.getSubminor().getValueOr(0); 1611 } 1612 1613 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1614 // is specified, or -std is set to a conforming mode. 1615 // Trigraphs are disabled by default in c++1z onwards. 1616 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1617 Opts.Trigraphs = 1618 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1619 1620 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1621 OPT_fno_dollars_in_identifiers, 1622 Opts.DollarIdents); 1623 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1624 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1625 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1626 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1627 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1628 Opts.ConstStrings); 1629 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1630 Opts.LaxVectorConversions = 0; 1631 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1632 Opts.ThreadsafeStatics = 0; 1633 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1634 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1635 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1636 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1637 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1638 1639 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1640 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1641 Opts.Blocks = Args.hasArg(OPT_fblocks); 1642 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1643 Opts.Coroutines = Args.hasArg(OPT_fcoroutines); 1644 Opts.Modules = Args.hasArg(OPT_fmodules); 1645 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1646 Opts.ModulesDeclUse = 1647 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1648 Opts.ModulesLocalVisibility = 1649 Args.hasArg(OPT_fmodules_local_submodule_visibility); 1650 Opts.ModulesSearchAll = Opts.Modules && 1651 !Args.hasArg(OPT_fno_modules_search_all) && 1652 Args.hasArg(OPT_fmodules_search_all); 1653 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1654 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1655 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1656 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1657 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1658 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1659 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1660 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1661 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1662 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1663 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1664 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1665 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1666 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1667 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1668 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1669 Opts.InstantiationDepth = 1670 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1671 Opts.ArrowDepth = 1672 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1673 Opts.ConstexprCallDepth = 1674 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1675 Opts.ConstexprStepLimit = 1676 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1677 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1678 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1679 Opts.NumLargeByValueCopy = 1680 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1681 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1682 Opts.ObjCConstantStringClass = 1683 Args.getLastArgValue(OPT_fconstant_string_class); 1684 Opts.ObjCDefaultSynthProperties = 1685 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1686 Opts.EncodeExtendedBlockSig = 1687 Args.hasArg(OPT_fencode_extended_block_signature); 1688 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1689 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1690 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1691 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1692 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1693 Opts.Static = Args.hasArg(OPT_static_define); 1694 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1695 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1696 || Args.hasArg(OPT_fdump_record_layouts); 1697 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1698 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1699 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1700 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1701 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1702 Opts.MRTD = Args.hasArg(OPT_mrtd); 1703 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1704 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1705 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1706 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1707 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1708 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1709 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1710 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1711 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1712 Opts.ImplementationOfModule = 1713 Args.getLastArgValue(OPT_fmodule_implementation_of); 1714 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1715 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 1716 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1717 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1718 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1719 1720 // __declspec is enabled by default for the PS4 by the driver, and also 1721 // enabled for Microsoft Extensions or Borland Extensions, here. 1722 // 1723 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 1724 // CUDA extension, however it is required for supporting cuda_builtin_vars.h, 1725 // which uses __declspec(property). Once that has been rewritten in terms of 1726 // something more generic, remove the Opts.CUDA term here. 1727 Opts.DeclSpecKeyword = 1728 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 1729 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 1730 1731 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1732 Opts.CurrentModule != Opts.ImplementationOfModule) { 1733 Diags.Report(diag::err_conflicting_module_names) 1734 << Opts.CurrentModule << Opts.ImplementationOfModule; 1735 } 1736 1737 // For now, we only support local submodule visibility in C++ (because we 1738 // heavily depend on the ODR for merging redefinitions). 1739 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1740 Diags.Report(diag::err_drv_argument_not_allowed_with) 1741 << "-fmodules-local-submodule-visibility" << "C"; 1742 1743 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1744 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1745 .Case("target", LangOptions::ASMM_Target) 1746 .Case("no", LangOptions::ASMM_Off) 1747 .Case("yes", LangOptions::ASMM_On) 1748 .Default(255)) { 1749 default: 1750 Diags.Report(diag::err_drv_invalid_value) 1751 << "-faddress-space-map-mangling=" << A->getValue(); 1752 break; 1753 case LangOptions::ASMM_Target: 1754 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1755 break; 1756 case LangOptions::ASMM_On: 1757 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1758 break; 1759 case LangOptions::ASMM_Off: 1760 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1761 break; 1762 } 1763 } 1764 1765 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1766 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1767 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1768 A->getValue()) 1769 .Case("single", 1770 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1771 .Case("multiple", 1772 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1773 .Case("virtual", 1774 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1775 .Default(LangOptions::PPTMK_BestCase); 1776 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1777 Diags.Report(diag::err_drv_invalid_value) 1778 << "-fms-memptr-rep=" << A->getValue(); 1779 1780 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1781 } 1782 1783 // Check if -fopenmp is specified. 1784 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp); 1785 Opts.OpenMPUseTLS = 1786 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 1787 Opts.OpenMPIsDevice = 1788 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 1789 1790 // Get the OpenMP target triples if any. 1791 if (Arg *A = Args.getLastArg(options::OPT_omptargets_EQ)) { 1792 1793 for (unsigned i = 0; i < A->getNumValues(); ++i) { 1794 llvm::Triple TT(A->getValue(i)); 1795 1796 if (TT.getArch() == llvm::Triple::UnknownArch) 1797 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 1798 else 1799 Opts.OMPTargetTriples.push_back(TT); 1800 } 1801 } 1802 1803 // Get OpenMP host file path if any and report if a non existent file is 1804 // found 1805 if (Arg *A = Args.getLastArg(options::OPT_omp_host_ir_file_path)) { 1806 Opts.OMPHostIRFile = A->getValue(); 1807 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 1808 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 1809 << Opts.OMPHostIRFile; 1810 } 1811 1812 // Record whether the __DEPRECATED define was requested. 1813 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1814 OPT_fno_deprecated_macro, 1815 Opts.Deprecated); 1816 1817 // FIXME: Eliminate this dependency. 1818 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1819 OptSize = getOptimizationLevelSize(Args); 1820 Opts.Optimize = Opt != 0; 1821 Opts.OptimizeSize = OptSize != 0; 1822 1823 // This is the __NO_INLINE__ define, which just depends on things like the 1824 // optimization level and -fno-inline, not actually whether the backend has 1825 // inlining enabled. 1826 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1827 1828 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1829 Args.hasArg(OPT_cl_fast_relaxed_math); 1830 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1831 Args.hasArg(OPT_cl_finite_math_only) || 1832 Args.hasArg(OPT_cl_fast_relaxed_math); 1833 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1834 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1835 Args.hasArg(OPT_cl_fast_relaxed_math); 1836 1837 Opts.RetainCommentsFromSystemHeaders = 1838 Args.hasArg(OPT_fretain_comments_from_system_headers); 1839 1840 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1841 switch (SSP) { 1842 default: 1843 Diags.Report(diag::err_drv_invalid_value) 1844 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1845 break; 1846 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1847 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1848 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1849 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1850 } 1851 1852 // Parse -fsanitize= arguments. 1853 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 1854 Diags, Opts.Sanitize); 1855 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1856 Opts.SanitizeAddressFieldPadding = 1857 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1858 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 1859 } 1860 1861 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1862 FileManager &FileMgr, 1863 DiagnosticsEngine &Diags) { 1864 using namespace options; 1865 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1866 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1867 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1868 Opts.TokenCache = A->getValue(); 1869 else 1870 Opts.TokenCache = Opts.ImplicitPTHInclude; 1871 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1872 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1873 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1874 1875 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1876 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 1877 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1878 1879 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1880 StringRef Value(A->getValue()); 1881 size_t Comma = Value.find(','); 1882 unsigned Bytes = 0; 1883 unsigned EndOfLine = 0; 1884 1885 if (Comma == StringRef::npos || 1886 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1887 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1888 Diags.Report(diag::err_drv_preamble_format); 1889 else { 1890 Opts.PrecompiledPreambleBytes.first = Bytes; 1891 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1892 } 1893 } 1894 1895 // Add macros from the command line. 1896 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 1897 if (A->getOption().matches(OPT_D)) 1898 Opts.addMacroDef(A->getValue()); 1899 else 1900 Opts.addMacroUndef(A->getValue()); 1901 } 1902 1903 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1904 1905 // Add the ordered list of -includes. 1906 for (const Arg *A : Args.filtered(OPT_include)) 1907 Opts.Includes.emplace_back(A->getValue()); 1908 1909 for (const Arg *A : Args.filtered(OPT_chain_include)) 1910 Opts.ChainedIncludes.emplace_back(A->getValue()); 1911 1912 // Include 'altivec.h' if -faltivec option present 1913 if (Args.hasArg(OPT_faltivec)) 1914 Opts.Includes.emplace_back("altivec.h"); 1915 1916 for (const Arg *A : Args.filtered(OPT_remap_file)) { 1917 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 1918 1919 if (Split.second.empty()) { 1920 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1921 continue; 1922 } 1923 1924 Opts.addRemappedFile(Split.first, Split.second); 1925 } 1926 1927 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1928 StringRef Name = A->getValue(); 1929 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1930 .Case("libc++", ARCXX_libcxx) 1931 .Case("libstdc++", ARCXX_libstdcxx) 1932 .Case("none", ARCXX_nolib) 1933 .Default(~0U); 1934 if (Library == ~0U) 1935 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1936 else 1937 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1938 } 1939 } 1940 1941 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1942 ArgList &Args, 1943 frontend::ActionKind Action) { 1944 using namespace options; 1945 1946 switch (Action) { 1947 case frontend::ASTDeclList: 1948 case frontend::ASTDump: 1949 case frontend::ASTPrint: 1950 case frontend::ASTView: 1951 case frontend::EmitAssembly: 1952 case frontend::EmitBC: 1953 case frontend::EmitHTML: 1954 case frontend::EmitLLVM: 1955 case frontend::EmitLLVMOnly: 1956 case frontend::EmitCodeGenOnly: 1957 case frontend::EmitObj: 1958 case frontend::FixIt: 1959 case frontend::GenerateModule: 1960 case frontend::GeneratePCH: 1961 case frontend::GeneratePTH: 1962 case frontend::ParseSyntaxOnly: 1963 case frontend::ModuleFileInfo: 1964 case frontend::VerifyPCH: 1965 case frontend::PluginAction: 1966 case frontend::PrintDeclContext: 1967 case frontend::RewriteObjC: 1968 case frontend::RewriteTest: 1969 case frontend::RunAnalysis: 1970 case frontend::MigrateSource: 1971 Opts.ShowCPP = 0; 1972 break; 1973 1974 case frontend::DumpRawTokens: 1975 case frontend::DumpTokens: 1976 case frontend::InitOnly: 1977 case frontend::PrintPreamble: 1978 case frontend::PrintPreprocessedInput: 1979 case frontend::RewriteMacros: 1980 case frontend::RunPreprocessorOnly: 1981 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1982 break; 1983 } 1984 1985 Opts.ShowComments = Args.hasArg(OPT_C); 1986 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1987 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1988 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1989 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1990 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 1991 } 1992 1993 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1994 using namespace options; 1995 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1996 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1997 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 1998 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1999 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2000 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2001 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2002 // Use the default target triple if unspecified. 2003 if (Opts.Triple.empty()) 2004 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2005 } 2006 2007 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2008 const char *const *ArgBegin, 2009 const char *const *ArgEnd, 2010 DiagnosticsEngine &Diags) { 2011 bool Success = true; 2012 2013 // Parse the arguments. 2014 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2015 const unsigned IncludedFlagsBitmask = options::CC1Option; 2016 unsigned MissingArgIndex, MissingArgCount; 2017 InputArgList Args = 2018 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2019 MissingArgCount, IncludedFlagsBitmask); 2020 2021 // Check for missing argument error. 2022 if (MissingArgCount) { 2023 Diags.Report(diag::err_drv_missing_argument) 2024 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2025 Success = false; 2026 } 2027 2028 // Issue errors on unknown arguments. 2029 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2030 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2031 Success = false; 2032 } 2033 2034 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2035 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2036 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2037 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags); 2038 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args); 2039 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2040 // FIXME: We shouldn't have to pass the DashX option around here 2041 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags); 2042 ParseTargetArgs(Res.getTargetOpts(), Args); 2043 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2044 Res.getTargetOpts()); 2045 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2046 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2047 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2048 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2049 // what the input type is. 2050 if (Args.hasArg(OPT_fobjc_arc)) 2051 Res.getLangOpts()->ObjCAutoRefCount = 1; 2052 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2053 Diags, Res.getLangOpts()->Sanitize); 2054 } else { 2055 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2056 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags); 2057 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2058 Res.getLangOpts()->ObjCExceptions = 1; 2059 } 2060 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2061 // PCH file and find the original header name. Remove the need to do that in 2062 // ParsePreprocessorArgs and remove the FileManager 2063 // parameters from the function and the "FileManager.h" #include. 2064 FileManager FileMgr(Res.getFileSystemOpts()); 2065 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2066 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2067 Res.getFrontendOpts().ProgramAction); 2068 return Success; 2069 } 2070 2071 namespace { 2072 2073 class ModuleSignature { 2074 SmallVector<uint64_t, 16> Data; 2075 unsigned CurBit; 2076 uint64_t CurValue; 2077 2078 public: 2079 ModuleSignature() : CurBit(0), CurValue(0) { } 2080 2081 void add(uint64_t Value, unsigned Bits); 2082 void add(StringRef Value); 2083 void flush(); 2084 2085 llvm::APInt getAsInteger() const; 2086 }; 2087 } 2088 2089 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 2090 CurValue |= Value << CurBit; 2091 if (CurBit + NumBits < 64) { 2092 CurBit += NumBits; 2093 return; 2094 } 2095 2096 // Add the current word. 2097 Data.push_back(CurValue); 2098 2099 if (CurBit) 2100 CurValue = Value >> (64-CurBit); 2101 else 2102 CurValue = 0; 2103 CurBit = (CurBit+NumBits) & 63; 2104 } 2105 2106 void ModuleSignature::flush() { 2107 if (CurBit == 0) 2108 return; 2109 2110 Data.push_back(CurValue); 2111 CurBit = 0; 2112 CurValue = 0; 2113 } 2114 2115 void ModuleSignature::add(StringRef Value) { 2116 for (auto &c : Value) 2117 add(c, 8); 2118 } 2119 2120 llvm::APInt ModuleSignature::getAsInteger() const { 2121 return llvm::APInt(Data.size() * 64, Data); 2122 } 2123 2124 std::string CompilerInvocation::getModuleHash() const { 2125 // Note: For QoI reasons, the things we use as a hash here should all be 2126 // dumped via the -module-info flag. 2127 using llvm::hash_code; 2128 using llvm::hash_value; 2129 using llvm::hash_combine; 2130 2131 // Start the signature with the compiler version. 2132 // FIXME: We'd rather use something more cryptographically sound than 2133 // CityHash, but this will do for now. 2134 hash_code code = hash_value(getClangFullRepositoryVersion()); 2135 2136 // Extend the signature with the language options 2137 #define LANGOPT(Name, Bits, Default, Description) \ 2138 code = hash_combine(code, LangOpts->Name); 2139 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2140 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2141 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2142 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2143 #include "clang/Basic/LangOptions.def" 2144 2145 for (StringRef Feature : LangOpts->ModuleFeatures) 2146 code = hash_combine(code, Feature); 2147 2148 // Extend the signature with the target options. 2149 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2150 TargetOpts->ABI); 2151 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2152 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2153 2154 // Extend the signature with preprocessor options. 2155 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2156 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2157 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2158 2159 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2160 I = getPreprocessorOpts().Macros.begin(), 2161 IEnd = getPreprocessorOpts().Macros.end(); 2162 I != IEnd; ++I) { 2163 // If we're supposed to ignore this macro for the purposes of modules, 2164 // don't put it into the hash. 2165 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2166 // Check whether we're ignoring this macro. 2167 StringRef MacroDef = I->first; 2168 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 2169 continue; 2170 } 2171 2172 code = hash_combine(code, I->first, I->second); 2173 } 2174 2175 // Extend the signature with the sysroot. 2176 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 2177 hsOpts.UseStandardSystemIncludes, 2178 hsOpts.UseStandardCXXIncludes, 2179 hsOpts.UseLibcxx); 2180 code = hash_combine(code, hsOpts.ResourceDir); 2181 2182 // Extend the signature with the user build path. 2183 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2184 2185 // Extend the signature with the module file extensions. 2186 const FrontendOptions &frontendOpts = getFrontendOpts(); 2187 for (auto ext : frontendOpts.ModuleFileExtensions) { 2188 code = ext->hashExtension(code); 2189 } 2190 2191 // Darwin-specific hack: if we have a sysroot, use the contents and 2192 // modification time of 2193 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2194 // as part of the module hash. 2195 if (!hsOpts.Sysroot.empty()) { 2196 SmallString<128> systemVersionFile; 2197 systemVersionFile += hsOpts.Sysroot; 2198 llvm::sys::path::append(systemVersionFile, "System"); 2199 llvm::sys::path::append(systemVersionFile, "Library"); 2200 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2201 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2202 2203 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2204 llvm::MemoryBuffer::getFile(systemVersionFile); 2205 if (buffer) { 2206 code = hash_combine(code, buffer.get()->getBuffer()); 2207 2208 struct stat statBuf; 2209 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2210 code = hash_combine(code, statBuf.st_mtime); 2211 } 2212 } 2213 2214 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2215 } 2216 2217 namespace clang { 2218 2219 template<typename IntTy> 2220 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2221 IntTy Default, 2222 DiagnosticsEngine *Diags) { 2223 IntTy Res = Default; 2224 if (Arg *A = Args.getLastArg(Id)) { 2225 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2226 if (Diags) 2227 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2228 << A->getValue(); 2229 } 2230 } 2231 return Res; 2232 } 2233 2234 2235 // Declared in clang/Frontend/Utils.h. 2236 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2237 DiagnosticsEngine *Diags) { 2238 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2239 } 2240 2241 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2242 uint64_t Default, 2243 DiagnosticsEngine *Diags) { 2244 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2245 } 2246 2247 void BuryPointer(const void *Ptr) { 2248 // This function may be called only a small fixed amount of times per each 2249 // invocation, otherwise we do actually have a leak which we want to report. 2250 // If this function is called more than kGraveYardMaxSize times, the pointers 2251 // will not be properly buried and a leak detector will report a leak, which 2252 // is what we want in such case. 2253 static const size_t kGraveYardMaxSize = 16; 2254 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2255 static std::atomic<unsigned> GraveYardSize; 2256 unsigned Idx = GraveYardSize++; 2257 if (Idx >= kGraveYardMaxSize) 2258 return; 2259 GraveYard[Idx] = Ptr; 2260 } 2261 2262 IntrusiveRefCntPtr<vfs::FileSystem> 2263 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2264 DiagnosticsEngine &Diags) { 2265 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2266 return vfs::getRealFileSystem(); 2267 2268 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2269 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2270 // earlier vfs files are on the bottom 2271 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2272 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2273 llvm::MemoryBuffer::getFile(File); 2274 if (!Buffer) { 2275 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2276 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2277 } 2278 2279 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2280 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2281 if (!FS.get()) { 2282 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2283 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2284 } 2285 Overlay->pushOverlay(FS); 2286 } 2287 return Overlay; 2288 } 2289 } // end namespace clang 2290