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 (Args.hasArg(OPT_gline_tables_only)) { 397 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 398 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) || 399 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) { 400 bool Default = false; 401 // Until dtrace (via CTF) and LLDB can deal with distributed debug info, 402 // Darwin and FreeBSD default to standalone/full debug info. 403 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() || 404 llvm::Triple(TargetOpts.Triple).isOSFreeBSD()) 405 Default = true; 406 407 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default)) 408 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 409 else 410 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 411 } 412 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 413 if (Args.hasArg(OPT_gcodeview)) { 414 Opts.EmitCodeView = true; 415 Opts.DwarfVersion = 0; 416 } else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo) { 417 // Default Dwarf version is 4 if we are generating debug information. 418 Opts.DwarfVersion = 4; 419 } 420 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 421 if (Args.hasArg(OPT_gdwarf_2)) 422 Opts.DwarfVersion = 2; 423 else if (Args.hasArg(OPT_gdwarf_3)) 424 Opts.DwarfVersion = 3; 425 else if (Args.hasArg(OPT_gdwarf_4)) 426 Opts.DwarfVersion = 4; 427 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 428 429 if (const Arg *A = 430 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 431 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 432 433 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 434 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 435 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 436 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 437 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 438 OPT_fuse_register_sized_bitfield_access); 439 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 440 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 441 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 442 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 443 Opts.NoCommon = Args.hasArg(OPT_fno_common); 444 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 445 Opts.OptimizeSize = getOptimizationLevelSize(Args); 446 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 447 Args.hasArg(OPT_ffreestanding)); 448 Opts.UnrollLoops = 449 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 450 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 451 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 452 453 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 454 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 455 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 456 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) || 457 Args.hasArg(OPT_fprofile_instr_generate_EQ); 458 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ); 459 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 460 Opts.CoverageMapping = 461 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 462 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 463 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 464 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 465 Opts.NewMSEH = Args.hasArg(OPT_fnew_ms_eh); 466 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 467 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 468 Opts.CodeModel = getCodeModel(Args, Diags); 469 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 470 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 471 Opts.DisableFree = Args.hasArg(OPT_disable_free); 472 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 473 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 474 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 475 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 476 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 477 Args.hasArg(OPT_cl_finite_math_only) || 478 Args.hasArg(OPT_cl_fast_relaxed_math)); 479 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 480 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 481 Args.hasArg(OPT_cl_finite_math_only) || 482 Args.hasArg(OPT_cl_fast_relaxed_math)); 483 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros); 484 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 485 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 486 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 487 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 488 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 489 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 490 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 491 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 492 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 493 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 494 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 495 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 496 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 497 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 498 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 499 Args.hasArg(OPT_cl_fast_relaxed_math); 500 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 501 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 502 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 503 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 504 Diags.Report(diag::err_drv_invalid_value) 505 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 506 << Opts.ThreadModel; 507 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 508 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 509 510 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 511 OPT_fno_function_sections, false); 512 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 513 OPT_fno_data_sections, false); 514 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 515 OPT_fno_unique_section_names, true); 516 517 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 518 519 Opts.PrepareForLTO = Args.hasArg(OPT_flto); 520 521 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 522 523 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 524 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 525 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 526 527 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 528 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 529 530 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 531 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 532 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 533 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 534 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 535 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 536 Opts.CoverageNoFunctionNamesInData = 537 Args.hasArg(OPT_coverage_no_function_names_in_data); 538 Opts.CoverageExitBlockBeforeBody = 539 Args.hasArg(OPT_coverage_exit_block_before_body); 540 if (Args.hasArg(OPT_coverage_version_EQ)) { 541 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 542 if (CoverageVersion.size() != 4) { 543 Diags.Report(diag::err_drv_invalid_value) 544 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 545 << CoverageVersion; 546 } else { 547 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 548 } 549 } 550 } 551 552 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 553 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 554 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 555 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 556 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 557 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 558 Opts.SanitizeCoverageType = 559 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 560 Opts.SanitizeCoverageIndirectCalls = 561 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 562 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 563 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 564 Opts.SanitizeCoverage8bitCounters = 565 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 566 Opts.SanitizeMemoryTrackOrigins = 567 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 568 Opts.SanitizeMemoryUseAfterDtor = 569 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 570 Opts.SSPBufferSize = 571 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 572 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 573 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 574 StringRef Val = A->getValue(); 575 unsigned StackAlignment = Opts.StackAlignment; 576 Val.getAsInteger(10, StackAlignment); 577 Opts.StackAlignment = StackAlignment; 578 } 579 580 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 581 StringRef Val = A->getValue(); 582 unsigned StackProbeSize = Opts.StackProbeSize; 583 Val.getAsInteger(0, StackProbeSize); 584 Opts.StackProbeSize = StackProbeSize; 585 } 586 587 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 588 StringRef Name = A->getValue(); 589 unsigned Method = llvm::StringSwitch<unsigned>(Name) 590 .Case("legacy", CodeGenOptions::Legacy) 591 .Case("non-legacy", CodeGenOptions::NonLegacy) 592 .Case("mixed", CodeGenOptions::Mixed) 593 .Default(~0U); 594 if (Method == ~0U) { 595 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 596 Success = false; 597 } else { 598 Opts.setObjCDispatchMethod( 599 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 600 } 601 } 602 603 Opts.EmulatedTLS = 604 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 605 606 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 607 StringRef Name = A->getValue(); 608 unsigned Model = llvm::StringSwitch<unsigned>(Name) 609 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 610 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 611 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 612 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 613 .Default(~0U); 614 if (Model == ~0U) { 615 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 616 Success = false; 617 } else { 618 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 619 } 620 } 621 622 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 623 StringRef Val = A->getValue(); 624 if (Val == "fast") 625 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 626 else if (Val == "on") 627 Opts.setFPContractMode(CodeGenOptions::FPC_On); 628 else if (Val == "off") 629 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 630 else 631 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 632 } 633 634 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 635 if (A->getOption().matches(OPT_fpcc_struct_return)) { 636 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 637 } else { 638 assert(A->getOption().matches(OPT_freg_struct_return)); 639 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 640 } 641 } 642 643 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 644 bool NeedLocTracking = false; 645 646 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 647 Opts.OptimizationRemarkPattern = 648 GenerateOptimizationRemarkRegex(Diags, Args, A); 649 NeedLocTracking = true; 650 } 651 652 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 653 Opts.OptimizationRemarkMissedPattern = 654 GenerateOptimizationRemarkRegex(Diags, Args, A); 655 NeedLocTracking = true; 656 } 657 658 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 659 Opts.OptimizationRemarkAnalysisPattern = 660 GenerateOptimizationRemarkRegex(Diags, Args, A); 661 NeedLocTracking = true; 662 } 663 664 // If the user requested to use a sample profile for PGO, then the 665 // backend will need to track source location information so the profile 666 // can be incorporated into the IR. 667 if (!Opts.SampleProfileFile.empty()) 668 NeedLocTracking = true; 669 670 // If the user requested a flag that requires source locations available in 671 // the backend, make sure that the backend tracks source location information. 672 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 673 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 674 675 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 676 677 // Parse -fsanitize-recover= arguments. 678 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 679 parseSanitizerKinds("-fsanitize-recover=", 680 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 681 Opts.SanitizeRecover); 682 parseSanitizerKinds("-fsanitize-trap=", 683 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 684 Opts.SanitizeTrap); 685 686 Opts.CudaGpuBinaryFileNames = 687 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 688 689 return Success; 690 } 691 692 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 693 ArgList &Args) { 694 using namespace options; 695 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 696 Opts.Targets = Args.getAllArgValues(OPT_MT); 697 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 698 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 699 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 700 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 701 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 702 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 703 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 704 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 705 Opts.ModuleDependencyOutputDir = 706 Args.getLastArgValue(OPT_module_dependency_dir); 707 if (Args.hasArg(OPT_MV)) 708 Opts.OutputFormat = DependencyOutputFormat::NMake; 709 // Add sanitizer blacklists as extra dependencies. 710 // They won't be discovered by the regular preprocessor, so 711 // we let make / ninja to know about this implicit dependency. 712 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 713 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 714 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 715 ModuleFiles.end()); 716 } 717 718 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 719 DiagnosticsEngine *Diags) { 720 using namespace options; 721 bool Success = true; 722 723 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 724 if (Arg *A = 725 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 726 Opts.DiagnosticSerializationFile = A->getValue(); 727 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 728 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 729 Opts.Pedantic = Args.hasArg(OPT_pedantic); 730 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 731 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 732 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 733 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 734 OPT_fno_show_column, 735 /*Default=*/true); 736 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 737 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 738 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 739 740 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 741 742 // Default behavior is to not to show note include stacks. 743 Opts.ShowNoteIncludeStack = false; 744 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 745 OPT_fno_diagnostics_show_note_include_stack)) 746 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 747 Opts.ShowNoteIncludeStack = true; 748 749 StringRef ShowOverloads = 750 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 751 if (ShowOverloads == "best") 752 Opts.setShowOverloads(Ovl_Best); 753 else if (ShowOverloads == "all") 754 Opts.setShowOverloads(Ovl_All); 755 else { 756 Success = false; 757 if (Diags) 758 Diags->Report(diag::err_drv_invalid_value) 759 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 760 << ShowOverloads; 761 } 762 763 StringRef ShowCategory = 764 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 765 if (ShowCategory == "none") 766 Opts.ShowCategories = 0; 767 else if (ShowCategory == "id") 768 Opts.ShowCategories = 1; 769 else if (ShowCategory == "name") 770 Opts.ShowCategories = 2; 771 else { 772 Success = false; 773 if (Diags) 774 Diags->Report(diag::err_drv_invalid_value) 775 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 776 << ShowCategory; 777 } 778 779 StringRef Format = 780 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 781 if (Format == "clang") 782 Opts.setFormat(DiagnosticOptions::Clang); 783 else if (Format == "msvc") 784 Opts.setFormat(DiagnosticOptions::MSVC); 785 else if (Format == "msvc-fallback") { 786 Opts.setFormat(DiagnosticOptions::MSVC); 787 Opts.CLFallbackMode = true; 788 } else if (Format == "vi") 789 Opts.setFormat(DiagnosticOptions::Vi); 790 else { 791 Success = false; 792 if (Diags) 793 Diags->Report(diag::err_drv_invalid_value) 794 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 795 << Format; 796 } 797 798 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 799 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 800 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 801 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 802 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 803 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 804 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 805 Diags, DiagMask); 806 if (Args.hasArg(OPT_verify_ignore_unexpected)) 807 DiagMask = DiagnosticLevelMask::All; 808 Opts.setVerifyIgnoreUnexpected(DiagMask); 809 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 810 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 811 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 812 Opts.MacroBacktraceLimit = 813 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 814 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 815 Opts.TemplateBacktraceLimit = getLastArgIntValue( 816 Args, OPT_ftemplate_backtrace_limit, 817 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 818 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 819 Args, OPT_fconstexpr_backtrace_limit, 820 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 821 Opts.SpellCheckingLimit = getLastArgIntValue( 822 Args, OPT_fspell_checking_limit, 823 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 824 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 825 DiagnosticOptions::DefaultTabStop, Diags); 826 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 827 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 828 if (Diags) 829 Diags->Report(diag::warn_ignoring_ftabstop_value) 830 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 831 } 832 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 833 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 834 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 835 836 return Success; 837 } 838 839 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 840 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 841 } 842 843 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 844 DiagnosticsEngine &Diags) { 845 using namespace options; 846 Opts.ProgramAction = frontend::ParseSyntaxOnly; 847 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 848 switch (A->getOption().getID()) { 849 default: 850 llvm_unreachable("Invalid option in group!"); 851 case OPT_ast_list: 852 Opts.ProgramAction = frontend::ASTDeclList; break; 853 case OPT_ast_dump: 854 case OPT_ast_dump_lookups: 855 Opts.ProgramAction = frontend::ASTDump; break; 856 case OPT_ast_print: 857 Opts.ProgramAction = frontend::ASTPrint; break; 858 case OPT_ast_view: 859 Opts.ProgramAction = frontend::ASTView; break; 860 case OPT_dump_raw_tokens: 861 Opts.ProgramAction = frontend::DumpRawTokens; break; 862 case OPT_dump_tokens: 863 Opts.ProgramAction = frontend::DumpTokens; break; 864 case OPT_S: 865 Opts.ProgramAction = frontend::EmitAssembly; break; 866 case OPT_emit_llvm_bc: 867 Opts.ProgramAction = frontend::EmitBC; break; 868 case OPT_emit_html: 869 Opts.ProgramAction = frontend::EmitHTML; break; 870 case OPT_emit_llvm: 871 Opts.ProgramAction = frontend::EmitLLVM; break; 872 case OPT_emit_llvm_only: 873 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 874 case OPT_emit_codegen_only: 875 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 876 case OPT_emit_obj: 877 Opts.ProgramAction = frontend::EmitObj; break; 878 case OPT_fixit_EQ: 879 Opts.FixItSuffix = A->getValue(); 880 // fall-through! 881 case OPT_fixit: 882 Opts.ProgramAction = frontend::FixIt; break; 883 case OPT_emit_module: 884 Opts.ProgramAction = frontend::GenerateModule; break; 885 case OPT_emit_pch: 886 Opts.ProgramAction = frontend::GeneratePCH; break; 887 case OPT_emit_pth: 888 Opts.ProgramAction = frontend::GeneratePTH; break; 889 case OPT_init_only: 890 Opts.ProgramAction = frontend::InitOnly; break; 891 case OPT_fsyntax_only: 892 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 893 case OPT_module_file_info: 894 Opts.ProgramAction = frontend::ModuleFileInfo; break; 895 case OPT_verify_pch: 896 Opts.ProgramAction = frontend::VerifyPCH; break; 897 case OPT_print_decl_contexts: 898 Opts.ProgramAction = frontend::PrintDeclContext; break; 899 case OPT_print_preamble: 900 Opts.ProgramAction = frontend::PrintPreamble; break; 901 case OPT_E: 902 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 903 case OPT_rewrite_macros: 904 Opts.ProgramAction = frontend::RewriteMacros; break; 905 case OPT_rewrite_objc: 906 Opts.ProgramAction = frontend::RewriteObjC; break; 907 case OPT_rewrite_test: 908 Opts.ProgramAction = frontend::RewriteTest; break; 909 case OPT_analyze: 910 Opts.ProgramAction = frontend::RunAnalysis; break; 911 case OPT_migrate: 912 Opts.ProgramAction = frontend::MigrateSource; break; 913 case OPT_Eonly: 914 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 915 } 916 } 917 918 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 919 Opts.Plugins.emplace_back(A->getValue(0)); 920 Opts.ProgramAction = frontend::PluginAction; 921 Opts.ActionName = A->getValue(); 922 923 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 924 if (AA->getValue(0) == Opts.ActionName) 925 Opts.PluginArgs.emplace_back(AA->getValue(1)); 926 } 927 928 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 929 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 930 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) 931 for (const Arg *A : Args.filtered(OPT_plugin_arg)) 932 if (A->getValue(0) == Opts.AddPluginActions[i]) 933 Opts.AddPluginArgs[i].emplace_back(A->getValue(1)); 934 935 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 936 Opts.CodeCompletionAt = 937 ParsedSourceLocation::FromString(A->getValue()); 938 if (Opts.CodeCompletionAt.FileName.empty()) 939 Diags.Report(diag::err_drv_invalid_value) 940 << A->getAsString(Args) << A->getValue(); 941 } 942 Opts.DisableFree = Args.hasArg(OPT_disable_free); 943 944 Opts.OutputFile = Args.getLastArgValue(OPT_o); 945 Opts.Plugins = Args.getAllArgValues(OPT_load); 946 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 947 Opts.ShowHelp = Args.hasArg(OPT_help); 948 Opts.ShowStats = Args.hasArg(OPT_print_stats); 949 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 950 Opts.ShowVersion = Args.hasArg(OPT_version); 951 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 952 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 953 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 954 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 955 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 956 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 957 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 958 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 959 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 960 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 961 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 962 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 963 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 964 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 965 966 Opts.CodeCompleteOpts.IncludeMacros 967 = Args.hasArg(OPT_code_completion_macros); 968 Opts.CodeCompleteOpts.IncludeCodePatterns 969 = Args.hasArg(OPT_code_completion_patterns); 970 Opts.CodeCompleteOpts.IncludeGlobals 971 = !Args.hasArg(OPT_no_code_completion_globals); 972 Opts.CodeCompleteOpts.IncludeBriefComments 973 = Args.hasArg(OPT_code_completion_brief_comments); 974 975 Opts.OverrideRecordLayoutsFile 976 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 977 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 978 OPT_arcmt_modify, 979 OPT_arcmt_migrate)) { 980 switch (A->getOption().getID()) { 981 default: 982 llvm_unreachable("missed a case"); 983 case OPT_arcmt_check: 984 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 985 break; 986 case OPT_arcmt_modify: 987 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 988 break; 989 case OPT_arcmt_migrate: 990 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 991 break; 992 } 993 } 994 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 995 Opts.ARCMTMigrateReportOut 996 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 997 Opts.ARCMTMigrateEmitARCErrors 998 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 999 1000 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1001 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1002 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1003 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1004 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1005 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1006 if (Args.hasArg(OPT_objcmt_migrate_property)) 1007 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1008 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1009 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1010 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1011 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1012 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1013 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1014 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1015 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1016 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1017 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1018 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1019 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1020 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1021 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1022 if (Args.hasArg(OPT_objcmt_atomic_property)) 1023 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1024 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1025 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1026 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1027 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1028 if (Args.hasArg(OPT_objcmt_migrate_all)) 1029 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1030 1031 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1032 1033 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1034 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1035 Diags.Report(diag::err_drv_argument_not_allowed_with) 1036 << "ARC migration" << "ObjC migration"; 1037 } 1038 1039 InputKind DashX = IK_None; 1040 if (const Arg *A = Args.getLastArg(OPT_x)) { 1041 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1042 .Case("c", IK_C) 1043 .Case("cl", IK_OpenCL) 1044 .Case("cuda", IK_CUDA) 1045 .Case("c++", IK_CXX) 1046 .Case("objective-c", IK_ObjC) 1047 .Case("objective-c++", IK_ObjCXX) 1048 .Case("cpp-output", IK_PreprocessedC) 1049 .Case("assembler-with-cpp", IK_Asm) 1050 .Case("c++-cpp-output", IK_PreprocessedCXX) 1051 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1052 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1053 .Case("objc-cpp-output", IK_PreprocessedObjC) 1054 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1055 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1056 .Case("c-header", IK_C) 1057 .Case("cl-header", IK_OpenCL) 1058 .Case("objective-c-header", IK_ObjC) 1059 .Case("c++-header", IK_CXX) 1060 .Case("objective-c++-header", IK_ObjCXX) 1061 .Cases("ast", "pcm", IK_AST) 1062 .Case("ir", IK_LLVM_IR) 1063 .Default(IK_None); 1064 if (DashX == IK_None) 1065 Diags.Report(diag::err_drv_invalid_value) 1066 << A->getAsString(Args) << A->getValue(); 1067 } 1068 1069 // '-' is the default input if none is given. 1070 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1071 Opts.Inputs.clear(); 1072 if (Inputs.empty()) 1073 Inputs.push_back("-"); 1074 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1075 InputKind IK = DashX; 1076 if (IK == IK_None) { 1077 IK = FrontendOptions::getInputKindForExtension( 1078 StringRef(Inputs[i]).rsplit('.').second); 1079 // FIXME: Remove this hack. 1080 if (i == 0) 1081 DashX = IK; 1082 } 1083 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1084 } 1085 1086 return DashX; 1087 } 1088 1089 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1090 void *MainAddr) { 1091 std::string ClangExecutable = 1092 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1093 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1094 1095 // Compute the path to the resource directory. 1096 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1097 SmallString<128> P(Dir); 1098 if (ClangResourceDir != "") 1099 llvm::sys::path::append(P, ClangResourceDir); 1100 else 1101 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1102 "clang", CLANG_VERSION_STRING); 1103 1104 return P.str(); 1105 } 1106 1107 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1108 using namespace options; 1109 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1110 Opts.Verbose = Args.hasArg(OPT_v); 1111 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1112 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1113 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1114 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1115 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1116 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1117 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1118 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1119 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1120 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1121 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1122 Opts.ModuleCachePruneInterval = 1123 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1124 Opts.ModuleCachePruneAfter = 1125 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1126 Opts.ModulesValidateOncePerBuildSession = 1127 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1128 Opts.BuildSessionTimestamp = 1129 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1130 Opts.ModulesValidateSystemHeaders = 1131 Args.hasArg(OPT_fmodules_validate_system_headers); 1132 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1133 Opts.ModuleFormat = A->getValue(); 1134 1135 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1136 StringRef MacroDef = A->getValue(); 1137 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1138 } 1139 1140 // Add -I..., -F..., and -index-header-map options in order. 1141 bool IsIndexHeaderMap = false; 1142 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1143 if (A->getOption().matches(OPT_index_header_map)) { 1144 // -index-header-map applies to the next -I or -F. 1145 IsIndexHeaderMap = true; 1146 continue; 1147 } 1148 1149 frontend::IncludeDirGroup Group = 1150 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1151 1152 Opts.AddPath(A->getValue(), Group, 1153 /*IsFramework=*/A->getOption().matches(OPT_F), true); 1154 IsIndexHeaderMap = false; 1155 } 1156 1157 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1158 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1159 for (const Arg *A : 1160 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1161 if (A->getOption().matches(OPT_iprefix)) 1162 Prefix = A->getValue(); 1163 else if (A->getOption().matches(OPT_iwithprefix)) 1164 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1165 else 1166 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1167 } 1168 1169 for (const Arg *A : Args.filtered(OPT_idirafter)) 1170 Opts.AddPath(A->getValue(), frontend::After, false, true); 1171 for (const Arg *A : Args.filtered(OPT_iquote)) 1172 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1173 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1174 Opts.AddPath(A->getValue(), frontend::System, false, 1175 !A->getOption().matches(OPT_iwithsysroot)); 1176 for (const Arg *A : Args.filtered(OPT_iframework)) 1177 Opts.AddPath(A->getValue(), frontend::System, true, true); 1178 1179 // Add the paths for the various language specific isystem flags. 1180 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1181 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1182 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1183 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1184 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1185 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1186 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1187 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1188 1189 // Add the internal paths from a driver that detects standard include paths. 1190 for (const Arg *A : 1191 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1192 frontend::IncludeDirGroup Group = frontend::System; 1193 if (A->getOption().matches(OPT_internal_externc_isystem)) 1194 Group = frontend::ExternCSystem; 1195 Opts.AddPath(A->getValue(), Group, false, true); 1196 } 1197 1198 // Add the path prefixes which are implicitly treated as being system headers. 1199 for (const Arg *A : 1200 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1201 Opts.AddSystemHeaderPrefix( 1202 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1203 1204 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1205 Opts.AddVFSOverlayFile(A->getValue()); 1206 } 1207 1208 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1209 LangStandard::Kind LangStd) { 1210 // Set some properties which depend solely on the input kind; it would be nice 1211 // to move these to the language standard, and have the driver resolve the 1212 // input kind + language standard. 1213 if (IK == IK_Asm) { 1214 Opts.AsmPreprocessor = 1; 1215 } else if (IK == IK_ObjC || 1216 IK == IK_ObjCXX || 1217 IK == IK_PreprocessedObjC || 1218 IK == IK_PreprocessedObjCXX) { 1219 Opts.ObjC1 = Opts.ObjC2 = 1; 1220 } 1221 1222 if (LangStd == LangStandard::lang_unspecified) { 1223 // Based on the base language, pick one. 1224 switch (IK) { 1225 case IK_None: 1226 case IK_AST: 1227 case IK_LLVM_IR: 1228 llvm_unreachable("Invalid input kind!"); 1229 case IK_OpenCL: 1230 LangStd = LangStandard::lang_opencl; 1231 break; 1232 case IK_CUDA: 1233 case IK_PreprocessedCuda: 1234 LangStd = LangStandard::lang_cuda; 1235 break; 1236 case IK_Asm: 1237 case IK_C: 1238 case IK_PreprocessedC: 1239 case IK_ObjC: 1240 case IK_PreprocessedObjC: 1241 LangStd = LangStandard::lang_gnu11; 1242 break; 1243 case IK_CXX: 1244 case IK_PreprocessedCXX: 1245 case IK_ObjCXX: 1246 case IK_PreprocessedObjCXX: 1247 LangStd = LangStandard::lang_gnucxx98; 1248 break; 1249 } 1250 } 1251 1252 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1253 Opts.LineComment = Std.hasLineComments(); 1254 Opts.C99 = Std.isC99(); 1255 Opts.C11 = Std.isC11(); 1256 Opts.CPlusPlus = Std.isCPlusPlus(); 1257 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1258 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1259 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1260 Opts.Digraphs = Std.hasDigraphs(); 1261 Opts.GNUMode = Std.isGNUMode(); 1262 Opts.GNUInline = Std.isC89(); 1263 Opts.HexFloats = Std.hasHexFloats(); 1264 Opts.ImplicitInt = Std.hasImplicitInt(); 1265 1266 // Set OpenCL Version. 1267 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1268 if (LangStd == LangStandard::lang_opencl) 1269 Opts.OpenCLVersion = 100; 1270 else if (LangStd == LangStandard::lang_opencl11) 1271 Opts.OpenCLVersion = 110; 1272 else if (LangStd == LangStandard::lang_opencl12) 1273 Opts.OpenCLVersion = 120; 1274 else if (LangStd == LangStandard::lang_opencl20) 1275 Opts.OpenCLVersion = 200; 1276 1277 // OpenCL has some additional defaults. 1278 if (Opts.OpenCL) { 1279 Opts.AltiVec = 0; 1280 Opts.ZVector = 0; 1281 Opts.CXXOperatorNames = 1; 1282 Opts.LaxVectorConversions = 0; 1283 Opts.DefaultFPContract = 1; 1284 Opts.NativeHalfType = 1; 1285 } 1286 1287 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1288 LangStd == LangStandard::lang_cuda; 1289 1290 // OpenCL and C++ both have bool, true, false keywords. 1291 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1292 1293 // OpenCL has half keyword 1294 Opts.Half = Opts.OpenCL; 1295 1296 // C++ has wchar_t keyword. 1297 Opts.WChar = Opts.CPlusPlus; 1298 1299 Opts.GNUKeywords = Opts.GNUMode; 1300 Opts.CXXOperatorNames = Opts.CPlusPlus; 1301 1302 Opts.DollarIdents = !Opts.AsmPreprocessor; 1303 } 1304 1305 /// Attempt to parse a visibility value out of the given argument. 1306 static Visibility parseVisibility(Arg *arg, ArgList &args, 1307 DiagnosticsEngine &diags) { 1308 StringRef value = arg->getValue(); 1309 if (value == "default") { 1310 return DefaultVisibility; 1311 } else if (value == "hidden") { 1312 return HiddenVisibility; 1313 } else if (value == "protected") { 1314 // FIXME: diagnose if target does not support protected visibility 1315 return ProtectedVisibility; 1316 } 1317 1318 diags.Report(diag::err_drv_invalid_value) 1319 << arg->getAsString(args) << value; 1320 return DefaultVisibility; 1321 } 1322 1323 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1324 DiagnosticsEngine &Diags) { 1325 // FIXME: Cleanup per-file based stuff. 1326 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1327 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1328 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1329 #define LANGSTANDARD(id, name, desc, features) \ 1330 .Case(name, LangStandard::lang_##id) 1331 #include "clang/Frontend/LangStandards.def" 1332 .Default(LangStandard::lang_unspecified); 1333 if (LangStd == LangStandard::lang_unspecified) 1334 Diags.Report(diag::err_drv_invalid_value) 1335 << A->getAsString(Args) << A->getValue(); 1336 else { 1337 // Valid standard, check to make sure language and standard are 1338 // compatible. 1339 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1340 switch (IK) { 1341 case IK_C: 1342 case IK_ObjC: 1343 case IK_PreprocessedC: 1344 case IK_PreprocessedObjC: 1345 if (!(Std.isC89() || Std.isC99())) 1346 Diags.Report(diag::err_drv_argument_not_allowed_with) 1347 << A->getAsString(Args) << "C/ObjC"; 1348 break; 1349 case IK_CXX: 1350 case IK_ObjCXX: 1351 case IK_PreprocessedCXX: 1352 case IK_PreprocessedObjCXX: 1353 if (!Std.isCPlusPlus()) 1354 Diags.Report(diag::err_drv_argument_not_allowed_with) 1355 << A->getAsString(Args) << "C++/ObjC++"; 1356 break; 1357 case IK_OpenCL: 1358 if (!Std.isC99()) 1359 Diags.Report(diag::err_drv_argument_not_allowed_with) 1360 << A->getAsString(Args) << "OpenCL"; 1361 break; 1362 case IK_CUDA: 1363 case IK_PreprocessedCuda: 1364 if (!Std.isCPlusPlus()) 1365 Diags.Report(diag::err_drv_argument_not_allowed_with) 1366 << A->getAsString(Args) << "CUDA"; 1367 break; 1368 default: 1369 break; 1370 } 1371 } 1372 } 1373 1374 // -cl-std only applies for OpenCL language standards. 1375 // Override the -std option in this case. 1376 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1377 LangStandard::Kind OpenCLLangStd 1378 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1379 .Case("CL", LangStandard::lang_opencl) 1380 .Case("CL1.1", LangStandard::lang_opencl11) 1381 .Case("CL1.2", LangStandard::lang_opencl12) 1382 .Case("CL2.0", LangStandard::lang_opencl20) 1383 .Default(LangStandard::lang_unspecified); 1384 1385 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1386 Diags.Report(diag::err_drv_invalid_value) 1387 << A->getAsString(Args) << A->getValue(); 1388 } 1389 else 1390 LangStd = OpenCLLangStd; 1391 } 1392 1393 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1394 1395 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1396 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1397 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1398 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1399 // name, as it doesn't seem a useful distinction. 1400 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1401 Opts.GNUKeywords); 1402 1403 if (Args.hasArg(OPT_fno_operator_names)) 1404 Opts.CXXOperatorNames = 0; 1405 1406 if (Args.hasArg(OPT_fcuda_is_device)) 1407 Opts.CUDAIsDevice = 1; 1408 1409 if (Args.hasArg(OPT_fcuda_uses_libdevice)) 1410 Opts.CUDAUsesLibDevice = 1; 1411 1412 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device)) 1413 Opts.CUDAAllowHostCallsFromHostDevice = 1; 1414 1415 if (Args.hasArg(OPT_fcuda_disable_target_call_checks)) 1416 Opts.CUDADisableTargetCallChecks = 1; 1417 1418 if (Opts.ObjC1) { 1419 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1420 StringRef value = arg->getValue(); 1421 if (Opts.ObjCRuntime.tryParse(value)) 1422 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1423 } 1424 1425 if (Args.hasArg(OPT_fobjc_gc_only)) 1426 Opts.setGC(LangOptions::GCOnly); 1427 else if (Args.hasArg(OPT_fobjc_gc)) 1428 Opts.setGC(LangOptions::HybridGC); 1429 else if (Args.hasArg(OPT_fobjc_arc)) { 1430 Opts.ObjCAutoRefCount = 1; 1431 if (!Opts.ObjCRuntime.allowsARC()) 1432 Diags.Report(diag::err_arc_unsupported_on_runtime); 1433 1434 // Only set ObjCARCWeak if ARC is enabled. 1435 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1436 Opts.ObjCARCWeak = 1; 1437 else 1438 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1439 } 1440 1441 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1442 Opts.ObjCInferRelatedResultType = 0; 1443 1444 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1445 Opts.ObjCSubscriptingLegacyRuntime = 1446 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1447 } 1448 1449 if (Args.hasArg(OPT_fgnu89_inline)) { 1450 if (Opts.CPlusPlus) 1451 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1452 << "C++/ObjC++"; 1453 else 1454 Opts.GNUInline = 1; 1455 } 1456 1457 if (Args.hasArg(OPT_fapple_kext)) { 1458 if (!Opts.CPlusPlus) 1459 Diags.Report(diag::warn_c_kext); 1460 else 1461 Opts.AppleKext = 1; 1462 } 1463 1464 if (Args.hasArg(OPT_print_ivar_layout)) 1465 Opts.ObjCGCBitmapPrint = 1; 1466 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1467 Opts.NoConstantCFStrings = 1; 1468 1469 if (Args.hasArg(OPT_faltivec)) 1470 Opts.AltiVec = 1; 1471 1472 if (Args.hasArg(OPT_fzvector)) 1473 Opts.ZVector = 1; 1474 1475 if (Args.hasArg(OPT_pthread)) 1476 Opts.POSIXThreads = 1; 1477 1478 // The value-visibility mode defaults to "default". 1479 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1480 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1481 } else { 1482 Opts.setValueVisibilityMode(DefaultVisibility); 1483 } 1484 1485 // The type-visibility mode defaults to the value-visibility mode. 1486 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1487 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1488 } else { 1489 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1490 } 1491 1492 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1493 Opts.InlineVisibilityHidden = 1; 1494 1495 if (Args.hasArg(OPT_ftrapv)) { 1496 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1497 // Set the handler, if one is specified. 1498 Opts.OverflowHandler = 1499 Args.getLastArgValue(OPT_ftrapv_handler); 1500 } 1501 else if (Args.hasArg(OPT_fwrapv)) 1502 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1503 1504 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1505 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1506 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1507 Opts.MSCompatibilityVersion = 0; 1508 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1509 VersionTuple VT; 1510 if (VT.tryParse(A->getValue())) 1511 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1512 << A->getValue(); 1513 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1514 VT.getMinor().getValueOr(0) * 100000 + 1515 VT.getSubminor().getValueOr(0); 1516 } 1517 1518 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1519 // is specified, or -std is set to a conforming mode. 1520 // Trigraphs are disabled by default in c++1z onwards. 1521 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1522 Opts.Trigraphs = 1523 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1524 1525 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1526 OPT_fno_dollars_in_identifiers, 1527 Opts.DollarIdents); 1528 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1529 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1530 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1531 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1532 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1533 Opts.ConstStrings); 1534 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1535 Opts.LaxVectorConversions = 0; 1536 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1537 Opts.ThreadsafeStatics = 0; 1538 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1539 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1540 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1541 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1542 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1543 1544 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1545 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1546 Opts.Blocks = Args.hasArg(OPT_fblocks); 1547 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1548 Opts.Modules = Args.hasArg(OPT_fmodules); 1549 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1550 Opts.ModulesDeclUse = 1551 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1552 Opts.ModulesLocalVisibility = 1553 Args.hasArg(OPT_fmodules_local_submodule_visibility); 1554 Opts.ModulesHideInternalLinkage = 1555 !Args.hasArg(OPT_fno_modules_hide_internal_linkage); 1556 Opts.ModulesSearchAll = Opts.Modules && 1557 !Args.hasArg(OPT_fno_modules_search_all) && 1558 Args.hasArg(OPT_fmodules_search_all); 1559 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1560 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1561 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1562 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1563 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1564 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1565 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1566 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1567 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1568 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1569 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1570 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1571 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1572 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1573 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1574 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1575 Opts.InstantiationDepth = 1576 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1577 Opts.ArrowDepth = 1578 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1579 Opts.ConstexprCallDepth = 1580 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1581 Opts.ConstexprStepLimit = 1582 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1583 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1584 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1585 Opts.NumLargeByValueCopy = 1586 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1587 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1588 Opts.ObjCConstantStringClass = 1589 Args.getLastArgValue(OPT_fconstant_string_class); 1590 Opts.ObjCDefaultSynthProperties = 1591 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1592 Opts.EncodeExtendedBlockSig = 1593 Args.hasArg(OPT_fencode_extended_block_signature); 1594 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1595 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1596 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1597 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1598 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1599 Opts.Static = Args.hasArg(OPT_static_define); 1600 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1601 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1602 || Args.hasArg(OPT_fdump_record_layouts); 1603 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1604 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1605 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1606 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1607 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1608 Opts.MRTD = Args.hasArg(OPT_mrtd); 1609 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1610 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1611 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1612 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1613 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1614 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1615 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1616 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1617 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1618 Opts.ImplementationOfModule = 1619 Args.getLastArgValue(OPT_fmodule_implementation_of); 1620 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1621 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 1622 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1623 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1624 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1625 1626 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1627 Opts.CurrentModule != Opts.ImplementationOfModule) { 1628 Diags.Report(diag::err_conflicting_module_names) 1629 << Opts.CurrentModule << Opts.ImplementationOfModule; 1630 } 1631 1632 // For now, we only support local submodule visibility in C++ (because we 1633 // heavily depend on the ODR for merging redefinitions). 1634 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1635 Diags.Report(diag::err_drv_argument_not_allowed_with) 1636 << "-fmodules-local-submodule-visibility" << "C"; 1637 1638 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1639 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1640 .Case("target", LangOptions::ASMM_Target) 1641 .Case("no", LangOptions::ASMM_Off) 1642 .Case("yes", LangOptions::ASMM_On) 1643 .Default(255)) { 1644 default: 1645 Diags.Report(diag::err_drv_invalid_value) 1646 << "-faddress-space-map-mangling=" << A->getValue(); 1647 break; 1648 case LangOptions::ASMM_Target: 1649 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1650 break; 1651 case LangOptions::ASMM_On: 1652 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1653 break; 1654 case LangOptions::ASMM_Off: 1655 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1656 break; 1657 } 1658 } 1659 1660 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1661 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1662 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1663 A->getValue()) 1664 .Case("single", 1665 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1666 .Case("multiple", 1667 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1668 .Case("virtual", 1669 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1670 .Default(LangOptions::PPTMK_BestCase); 1671 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1672 Diags.Report(diag::err_drv_invalid_value) 1673 << "-fms-memptr-rep=" << A->getValue(); 1674 1675 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1676 } 1677 1678 // Check if -fopenmp is specified. 1679 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp); 1680 Opts.OpenMPUseTLS = 1681 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 1682 1683 // Record whether the __DEPRECATED define was requested. 1684 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1685 OPT_fno_deprecated_macro, 1686 Opts.Deprecated); 1687 1688 // FIXME: Eliminate this dependency. 1689 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1690 OptSize = getOptimizationLevelSize(Args); 1691 Opts.Optimize = Opt != 0; 1692 Opts.OptimizeSize = OptSize != 0; 1693 1694 // This is the __NO_INLINE__ define, which just depends on things like the 1695 // optimization level and -fno-inline, not actually whether the backend has 1696 // inlining enabled. 1697 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1698 1699 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1700 Args.hasArg(OPT_cl_fast_relaxed_math); 1701 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1702 Args.hasArg(OPT_cl_finite_math_only) || 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