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