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