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.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 498 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 499 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 500 Args.hasArg(OPT_cl_fast_relaxed_math); 501 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 502 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 503 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 504 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 505 Diags.Report(diag::err_drv_invalid_value) 506 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 507 << Opts.ThreadModel; 508 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 509 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 510 511 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 512 OPT_fno_function_sections, false); 513 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 514 OPT_fno_data_sections, false); 515 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 516 OPT_fno_unique_section_names, true); 517 518 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 519 520 Opts.PrepareForLTO = Args.hasArg(OPT_flto); 521 522 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 523 524 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 525 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 526 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 527 528 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 529 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 530 531 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 532 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 533 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 534 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 535 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 536 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 537 Opts.CoverageNoFunctionNamesInData = 538 Args.hasArg(OPT_coverage_no_function_names_in_data); 539 Opts.CoverageExitBlockBeforeBody = 540 Args.hasArg(OPT_coverage_exit_block_before_body); 541 if (Args.hasArg(OPT_coverage_version_EQ)) { 542 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 543 if (CoverageVersion.size() != 4) { 544 Diags.Report(diag::err_drv_invalid_value) 545 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 546 << CoverageVersion; 547 } else { 548 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 549 } 550 } 551 } 552 553 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 554 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 555 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 556 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 557 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 558 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 559 Opts.SanitizeCoverageType = 560 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 561 Opts.SanitizeCoverageIndirectCalls = 562 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 563 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 564 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 565 Opts.SanitizeCoverage8bitCounters = 566 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 567 Opts.SanitizeMemoryTrackOrigins = 568 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 569 Opts.SanitizeMemoryUseAfterDtor = 570 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 571 Opts.SSPBufferSize = 572 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 573 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 574 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 575 StringRef Val = A->getValue(); 576 unsigned StackAlignment = Opts.StackAlignment; 577 Val.getAsInteger(10, StackAlignment); 578 Opts.StackAlignment = StackAlignment; 579 } 580 581 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 582 StringRef Val = A->getValue(); 583 unsigned StackProbeSize = Opts.StackProbeSize; 584 Val.getAsInteger(0, StackProbeSize); 585 Opts.StackProbeSize = StackProbeSize; 586 } 587 588 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 589 StringRef Name = A->getValue(); 590 unsigned Method = llvm::StringSwitch<unsigned>(Name) 591 .Case("legacy", CodeGenOptions::Legacy) 592 .Case("non-legacy", CodeGenOptions::NonLegacy) 593 .Case("mixed", CodeGenOptions::Mixed) 594 .Default(~0U); 595 if (Method == ~0U) { 596 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 597 Success = false; 598 } else { 599 Opts.setObjCDispatchMethod( 600 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 601 } 602 } 603 604 Opts.EmulatedTLS = 605 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 606 607 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 608 StringRef Name = A->getValue(); 609 unsigned Model = llvm::StringSwitch<unsigned>(Name) 610 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 611 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 612 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 613 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 614 .Default(~0U); 615 if (Model == ~0U) { 616 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 617 Success = false; 618 } else { 619 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 620 } 621 } 622 623 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 624 StringRef Val = A->getValue(); 625 if (Val == "fast") 626 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 627 else if (Val == "on") 628 Opts.setFPContractMode(CodeGenOptions::FPC_On); 629 else if (Val == "off") 630 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 631 else 632 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 633 } 634 635 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 636 if (A->getOption().matches(OPT_fpcc_struct_return)) { 637 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 638 } else { 639 assert(A->getOption().matches(OPT_freg_struct_return)); 640 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 641 } 642 } 643 644 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 645 bool NeedLocTracking = false; 646 647 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 648 Opts.OptimizationRemarkPattern = 649 GenerateOptimizationRemarkRegex(Diags, Args, A); 650 NeedLocTracking = true; 651 } 652 653 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 654 Opts.OptimizationRemarkMissedPattern = 655 GenerateOptimizationRemarkRegex(Diags, Args, A); 656 NeedLocTracking = true; 657 } 658 659 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 660 Opts.OptimizationRemarkAnalysisPattern = 661 GenerateOptimizationRemarkRegex(Diags, Args, A); 662 NeedLocTracking = true; 663 } 664 665 // If the user requested to use a sample profile for PGO, then the 666 // backend will need to track source location information so the profile 667 // can be incorporated into the IR. 668 if (!Opts.SampleProfileFile.empty()) 669 NeedLocTracking = true; 670 671 // If the user requested a flag that requires source locations available in 672 // the backend, make sure that the backend tracks source location information. 673 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 674 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 675 676 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 677 678 // Parse -fsanitize-recover= arguments. 679 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 680 parseSanitizerKinds("-fsanitize-recover=", 681 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 682 Opts.SanitizeRecover); 683 parseSanitizerKinds("-fsanitize-trap=", 684 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 685 Opts.SanitizeTrap); 686 687 Opts.CudaGpuBinaryFileNames = 688 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 689 690 return Success; 691 } 692 693 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 694 ArgList &Args) { 695 using namespace options; 696 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 697 Opts.Targets = Args.getAllArgValues(OPT_MT); 698 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 699 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 700 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 701 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 702 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 703 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 704 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 705 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 706 Opts.ModuleDependencyOutputDir = 707 Args.getLastArgValue(OPT_module_dependency_dir); 708 if (Args.hasArg(OPT_MV)) 709 Opts.OutputFormat = DependencyOutputFormat::NMake; 710 // Add sanitizer blacklists as extra dependencies. 711 // They won't be discovered by the regular preprocessor, so 712 // we let make / ninja to know about this implicit dependency. 713 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 714 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 715 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 716 ModuleFiles.end()); 717 } 718 719 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 720 DiagnosticsEngine *Diags) { 721 using namespace options; 722 bool Success = true; 723 724 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 725 if (Arg *A = 726 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 727 Opts.DiagnosticSerializationFile = A->getValue(); 728 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 729 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 730 Opts.Pedantic = Args.hasArg(OPT_pedantic); 731 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 732 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 733 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 734 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 735 OPT_fno_show_column, 736 /*Default=*/true); 737 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 738 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 739 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 740 741 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 742 743 // Default behavior is to not to show note include stacks. 744 Opts.ShowNoteIncludeStack = false; 745 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 746 OPT_fno_diagnostics_show_note_include_stack)) 747 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 748 Opts.ShowNoteIncludeStack = true; 749 750 StringRef ShowOverloads = 751 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 752 if (ShowOverloads == "best") 753 Opts.setShowOverloads(Ovl_Best); 754 else if (ShowOverloads == "all") 755 Opts.setShowOverloads(Ovl_All); 756 else { 757 Success = false; 758 if (Diags) 759 Diags->Report(diag::err_drv_invalid_value) 760 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 761 << ShowOverloads; 762 } 763 764 StringRef ShowCategory = 765 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 766 if (ShowCategory == "none") 767 Opts.ShowCategories = 0; 768 else if (ShowCategory == "id") 769 Opts.ShowCategories = 1; 770 else if (ShowCategory == "name") 771 Opts.ShowCategories = 2; 772 else { 773 Success = false; 774 if (Diags) 775 Diags->Report(diag::err_drv_invalid_value) 776 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 777 << ShowCategory; 778 } 779 780 StringRef Format = 781 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 782 if (Format == "clang") 783 Opts.setFormat(DiagnosticOptions::Clang); 784 else if (Format == "msvc") 785 Opts.setFormat(DiagnosticOptions::MSVC); 786 else if (Format == "msvc-fallback") { 787 Opts.setFormat(DiagnosticOptions::MSVC); 788 Opts.CLFallbackMode = true; 789 } else if (Format == "vi") 790 Opts.setFormat(DiagnosticOptions::Vi); 791 else { 792 Success = false; 793 if (Diags) 794 Diags->Report(diag::err_drv_invalid_value) 795 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 796 << Format; 797 } 798 799 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 800 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 801 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 802 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 803 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 804 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 805 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 806 Diags, DiagMask); 807 if (Args.hasArg(OPT_verify_ignore_unexpected)) 808 DiagMask = DiagnosticLevelMask::All; 809 Opts.setVerifyIgnoreUnexpected(DiagMask); 810 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 811 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 812 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 813 Opts.MacroBacktraceLimit = 814 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 815 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 816 Opts.TemplateBacktraceLimit = getLastArgIntValue( 817 Args, OPT_ftemplate_backtrace_limit, 818 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 819 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 820 Args, OPT_fconstexpr_backtrace_limit, 821 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 822 Opts.SpellCheckingLimit = getLastArgIntValue( 823 Args, OPT_fspell_checking_limit, 824 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 825 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 826 DiagnosticOptions::DefaultTabStop, Diags); 827 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 828 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 829 if (Diags) 830 Diags->Report(diag::warn_ignoring_ftabstop_value) 831 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 832 } 833 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 834 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 835 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 836 837 return Success; 838 } 839 840 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 841 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 842 } 843 844 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 845 DiagnosticsEngine &Diags) { 846 using namespace options; 847 Opts.ProgramAction = frontend::ParseSyntaxOnly; 848 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 849 switch (A->getOption().getID()) { 850 default: 851 llvm_unreachable("Invalid option in group!"); 852 case OPT_ast_list: 853 Opts.ProgramAction = frontend::ASTDeclList; break; 854 case OPT_ast_dump: 855 case OPT_ast_dump_lookups: 856 Opts.ProgramAction = frontend::ASTDump; break; 857 case OPT_ast_print: 858 Opts.ProgramAction = frontend::ASTPrint; break; 859 case OPT_ast_view: 860 Opts.ProgramAction = frontend::ASTView; break; 861 case OPT_dump_raw_tokens: 862 Opts.ProgramAction = frontend::DumpRawTokens; break; 863 case OPT_dump_tokens: 864 Opts.ProgramAction = frontend::DumpTokens; break; 865 case OPT_S: 866 Opts.ProgramAction = frontend::EmitAssembly; break; 867 case OPT_emit_llvm_bc: 868 Opts.ProgramAction = frontend::EmitBC; break; 869 case OPT_emit_html: 870 Opts.ProgramAction = frontend::EmitHTML; break; 871 case OPT_emit_llvm: 872 Opts.ProgramAction = frontend::EmitLLVM; break; 873 case OPT_emit_llvm_only: 874 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 875 case OPT_emit_codegen_only: 876 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 877 case OPT_emit_obj: 878 Opts.ProgramAction = frontend::EmitObj; break; 879 case OPT_fixit_EQ: 880 Opts.FixItSuffix = A->getValue(); 881 // fall-through! 882 case OPT_fixit: 883 Opts.ProgramAction = frontend::FixIt; break; 884 case OPT_emit_module: 885 Opts.ProgramAction = frontend::GenerateModule; break; 886 case OPT_emit_pch: 887 Opts.ProgramAction = frontend::GeneratePCH; break; 888 case OPT_emit_pth: 889 Opts.ProgramAction = frontend::GeneratePTH; break; 890 case OPT_init_only: 891 Opts.ProgramAction = frontend::InitOnly; break; 892 case OPT_fsyntax_only: 893 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 894 case OPT_module_file_info: 895 Opts.ProgramAction = frontend::ModuleFileInfo; break; 896 case OPT_verify_pch: 897 Opts.ProgramAction = frontend::VerifyPCH; break; 898 case OPT_print_decl_contexts: 899 Opts.ProgramAction = frontend::PrintDeclContext; break; 900 case OPT_print_preamble: 901 Opts.ProgramAction = frontend::PrintPreamble; break; 902 case OPT_E: 903 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 904 case OPT_rewrite_macros: 905 Opts.ProgramAction = frontend::RewriteMacros; break; 906 case OPT_rewrite_objc: 907 Opts.ProgramAction = frontend::RewriteObjC; break; 908 case OPT_rewrite_test: 909 Opts.ProgramAction = frontend::RewriteTest; break; 910 case OPT_analyze: 911 Opts.ProgramAction = frontend::RunAnalysis; break; 912 case OPT_migrate: 913 Opts.ProgramAction = frontend::MigrateSource; break; 914 case OPT_Eonly: 915 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 916 } 917 } 918 919 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 920 Opts.Plugins.emplace_back(A->getValue(0)); 921 Opts.ProgramAction = frontend::PluginAction; 922 Opts.ActionName = A->getValue(); 923 924 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 925 if (AA->getValue(0) == Opts.ActionName) 926 Opts.PluginArgs.emplace_back(AA->getValue(1)); 927 } 928 929 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 930 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 931 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) 932 for (const Arg *A : Args.filtered(OPT_plugin_arg)) 933 if (A->getValue(0) == Opts.AddPluginActions[i]) 934 Opts.AddPluginArgs[i].emplace_back(A->getValue(1)); 935 936 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 937 Opts.CodeCompletionAt = 938 ParsedSourceLocation::FromString(A->getValue()); 939 if (Opts.CodeCompletionAt.FileName.empty()) 940 Diags.Report(diag::err_drv_invalid_value) 941 << A->getAsString(Args) << A->getValue(); 942 } 943 Opts.DisableFree = Args.hasArg(OPT_disable_free); 944 945 Opts.OutputFile = Args.getLastArgValue(OPT_o); 946 Opts.Plugins = Args.getAllArgValues(OPT_load); 947 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 948 Opts.ShowHelp = Args.hasArg(OPT_help); 949 Opts.ShowStats = Args.hasArg(OPT_print_stats); 950 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 951 Opts.ShowVersion = Args.hasArg(OPT_version); 952 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 953 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 954 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 955 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 956 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 957 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 958 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 959 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 960 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 961 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 962 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 963 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 964 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 965 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 966 967 Opts.CodeCompleteOpts.IncludeMacros 968 = Args.hasArg(OPT_code_completion_macros); 969 Opts.CodeCompleteOpts.IncludeCodePatterns 970 = Args.hasArg(OPT_code_completion_patterns); 971 Opts.CodeCompleteOpts.IncludeGlobals 972 = !Args.hasArg(OPT_no_code_completion_globals); 973 Opts.CodeCompleteOpts.IncludeBriefComments 974 = Args.hasArg(OPT_code_completion_brief_comments); 975 976 Opts.OverrideRecordLayoutsFile 977 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 978 Opts.AuxTriple = 979 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 980 981 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 982 OPT_arcmt_modify, 983 OPT_arcmt_migrate)) { 984 switch (A->getOption().getID()) { 985 default: 986 llvm_unreachable("missed a case"); 987 case OPT_arcmt_check: 988 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 989 break; 990 case OPT_arcmt_modify: 991 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 992 break; 993 case OPT_arcmt_migrate: 994 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 995 break; 996 } 997 } 998 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 999 Opts.ARCMTMigrateReportOut 1000 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1001 Opts.ARCMTMigrateEmitARCErrors 1002 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1003 1004 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1005 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1006 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1007 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1008 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1009 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1010 if (Args.hasArg(OPT_objcmt_migrate_property)) 1011 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1012 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1013 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1014 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1015 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1016 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1017 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1018 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1019 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1020 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1021 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1022 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1023 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1024 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1025 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1026 if (Args.hasArg(OPT_objcmt_atomic_property)) 1027 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1028 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1029 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1030 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1031 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1032 if (Args.hasArg(OPT_objcmt_migrate_all)) 1033 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1034 1035 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1036 1037 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1038 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1039 Diags.Report(diag::err_drv_argument_not_allowed_with) 1040 << "ARC migration" << "ObjC migration"; 1041 } 1042 1043 InputKind DashX = IK_None; 1044 if (const Arg *A = Args.getLastArg(OPT_x)) { 1045 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1046 .Case("c", IK_C) 1047 .Case("cl", IK_OpenCL) 1048 .Case("cuda", IK_CUDA) 1049 .Case("c++", IK_CXX) 1050 .Case("objective-c", IK_ObjC) 1051 .Case("objective-c++", IK_ObjCXX) 1052 .Case("cpp-output", IK_PreprocessedC) 1053 .Case("assembler-with-cpp", IK_Asm) 1054 .Case("c++-cpp-output", IK_PreprocessedCXX) 1055 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1056 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1057 .Case("objc-cpp-output", IK_PreprocessedObjC) 1058 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1059 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1060 .Case("c-header", IK_C) 1061 .Case("cl-header", IK_OpenCL) 1062 .Case("objective-c-header", IK_ObjC) 1063 .Case("c++-header", IK_CXX) 1064 .Case("objective-c++-header", IK_ObjCXX) 1065 .Cases("ast", "pcm", IK_AST) 1066 .Case("ir", IK_LLVM_IR) 1067 .Default(IK_None); 1068 if (DashX == IK_None) 1069 Diags.Report(diag::err_drv_invalid_value) 1070 << A->getAsString(Args) << A->getValue(); 1071 } 1072 1073 // '-' is the default input if none is given. 1074 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1075 Opts.Inputs.clear(); 1076 if (Inputs.empty()) 1077 Inputs.push_back("-"); 1078 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1079 InputKind IK = DashX; 1080 if (IK == IK_None) { 1081 IK = FrontendOptions::getInputKindForExtension( 1082 StringRef(Inputs[i]).rsplit('.').second); 1083 // FIXME: Remove this hack. 1084 if (i == 0) 1085 DashX = IK; 1086 } 1087 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1088 } 1089 1090 return DashX; 1091 } 1092 1093 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1094 void *MainAddr) { 1095 std::string ClangExecutable = 1096 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1097 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1098 1099 // Compute the path to the resource directory. 1100 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1101 SmallString<128> P(Dir); 1102 if (ClangResourceDir != "") 1103 llvm::sys::path::append(P, ClangResourceDir); 1104 else 1105 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1106 "clang", CLANG_VERSION_STRING); 1107 1108 return P.str(); 1109 } 1110 1111 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1112 using namespace options; 1113 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1114 Opts.Verbose = Args.hasArg(OPT_v); 1115 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1116 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1117 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1118 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1119 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1120 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1121 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1122 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1123 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1124 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1125 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1126 Opts.ModuleCachePruneInterval = 1127 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1128 Opts.ModuleCachePruneAfter = 1129 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1130 Opts.ModulesValidateOncePerBuildSession = 1131 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1132 Opts.BuildSessionTimestamp = 1133 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1134 Opts.ModulesValidateSystemHeaders = 1135 Args.hasArg(OPT_fmodules_validate_system_headers); 1136 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1137 Opts.ModuleFormat = A->getValue(); 1138 1139 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1140 StringRef MacroDef = A->getValue(); 1141 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1142 } 1143 1144 // Add -I..., -F..., and -index-header-map options in order. 1145 bool IsIndexHeaderMap = false; 1146 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1147 if (A->getOption().matches(OPT_index_header_map)) { 1148 // -index-header-map applies to the next -I or -F. 1149 IsIndexHeaderMap = true; 1150 continue; 1151 } 1152 1153 frontend::IncludeDirGroup Group = 1154 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1155 1156 Opts.AddPath(A->getValue(), Group, 1157 /*IsFramework=*/A->getOption().matches(OPT_F), true); 1158 IsIndexHeaderMap = false; 1159 } 1160 1161 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1162 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1163 for (const Arg *A : 1164 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1165 if (A->getOption().matches(OPT_iprefix)) 1166 Prefix = A->getValue(); 1167 else if (A->getOption().matches(OPT_iwithprefix)) 1168 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1169 else 1170 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1171 } 1172 1173 for (const Arg *A : Args.filtered(OPT_idirafter)) 1174 Opts.AddPath(A->getValue(), frontend::After, false, true); 1175 for (const Arg *A : Args.filtered(OPT_iquote)) 1176 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1177 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1178 Opts.AddPath(A->getValue(), frontend::System, false, 1179 !A->getOption().matches(OPT_iwithsysroot)); 1180 for (const Arg *A : Args.filtered(OPT_iframework)) 1181 Opts.AddPath(A->getValue(), frontend::System, true, true); 1182 1183 // Add the paths for the various language specific isystem flags. 1184 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1185 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1186 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1187 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1188 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1189 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1190 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1191 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1192 1193 // Add the internal paths from a driver that detects standard include paths. 1194 for (const Arg *A : 1195 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1196 frontend::IncludeDirGroup Group = frontend::System; 1197 if (A->getOption().matches(OPT_internal_externc_isystem)) 1198 Group = frontend::ExternCSystem; 1199 Opts.AddPath(A->getValue(), Group, false, true); 1200 } 1201 1202 // Add the path prefixes which are implicitly treated as being system headers. 1203 for (const Arg *A : 1204 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1205 Opts.AddSystemHeaderPrefix( 1206 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1207 1208 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1209 Opts.AddVFSOverlayFile(A->getValue()); 1210 } 1211 1212 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1213 LangStandard::Kind LangStd) { 1214 // Set some properties which depend solely on the input kind; it would be nice 1215 // to move these to the language standard, and have the driver resolve the 1216 // input kind + language standard. 1217 if (IK == IK_Asm) { 1218 Opts.AsmPreprocessor = 1; 1219 } else if (IK == IK_ObjC || 1220 IK == IK_ObjCXX || 1221 IK == IK_PreprocessedObjC || 1222 IK == IK_PreprocessedObjCXX) { 1223 Opts.ObjC1 = Opts.ObjC2 = 1; 1224 } 1225 1226 if (LangStd == LangStandard::lang_unspecified) { 1227 // Based on the base language, pick one. 1228 switch (IK) { 1229 case IK_None: 1230 case IK_AST: 1231 case IK_LLVM_IR: 1232 llvm_unreachable("Invalid input kind!"); 1233 case IK_OpenCL: 1234 LangStd = LangStandard::lang_opencl; 1235 break; 1236 case IK_CUDA: 1237 case IK_PreprocessedCuda: 1238 LangStd = LangStandard::lang_cuda; 1239 break; 1240 case IK_Asm: 1241 case IK_C: 1242 case IK_PreprocessedC: 1243 case IK_ObjC: 1244 case IK_PreprocessedObjC: 1245 LangStd = LangStandard::lang_gnu11; 1246 break; 1247 case IK_CXX: 1248 case IK_PreprocessedCXX: 1249 case IK_ObjCXX: 1250 case IK_PreprocessedObjCXX: 1251 LangStd = LangStandard::lang_gnucxx98; 1252 break; 1253 } 1254 } 1255 1256 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1257 Opts.LineComment = Std.hasLineComments(); 1258 Opts.C99 = Std.isC99(); 1259 Opts.C11 = Std.isC11(); 1260 Opts.CPlusPlus = Std.isCPlusPlus(); 1261 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1262 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1263 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1264 Opts.Digraphs = Std.hasDigraphs(); 1265 Opts.GNUMode = Std.isGNUMode(); 1266 Opts.GNUInline = Std.isC89(); 1267 Opts.HexFloats = Std.hasHexFloats(); 1268 Opts.ImplicitInt = Std.hasImplicitInt(); 1269 1270 // Set OpenCL Version. 1271 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1272 if (LangStd == LangStandard::lang_opencl) 1273 Opts.OpenCLVersion = 100; 1274 else if (LangStd == LangStandard::lang_opencl11) 1275 Opts.OpenCLVersion = 110; 1276 else if (LangStd == LangStandard::lang_opencl12) 1277 Opts.OpenCLVersion = 120; 1278 else if (LangStd == LangStandard::lang_opencl20) 1279 Opts.OpenCLVersion = 200; 1280 1281 // OpenCL has some additional defaults. 1282 if (Opts.OpenCL) { 1283 Opts.AltiVec = 0; 1284 Opts.ZVector = 0; 1285 Opts.CXXOperatorNames = 1; 1286 Opts.LaxVectorConversions = 0; 1287 Opts.DefaultFPContract = 1; 1288 Opts.NativeHalfType = 1; 1289 } 1290 1291 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1292 LangStd == LangStandard::lang_cuda; 1293 1294 // OpenCL and C++ both have bool, true, false keywords. 1295 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1296 1297 // OpenCL has half keyword 1298 Opts.Half = Opts.OpenCL; 1299 1300 // C++ has wchar_t keyword. 1301 Opts.WChar = Opts.CPlusPlus; 1302 1303 Opts.GNUKeywords = Opts.GNUMode; 1304 Opts.CXXOperatorNames = Opts.CPlusPlus; 1305 1306 Opts.DollarIdents = !Opts.AsmPreprocessor; 1307 } 1308 1309 /// Attempt to parse a visibility value out of the given argument. 1310 static Visibility parseVisibility(Arg *arg, ArgList &args, 1311 DiagnosticsEngine &diags) { 1312 StringRef value = arg->getValue(); 1313 if (value == "default") { 1314 return DefaultVisibility; 1315 } else if (value == "hidden") { 1316 return HiddenVisibility; 1317 } else if (value == "protected") { 1318 // FIXME: diagnose if target does not support protected visibility 1319 return ProtectedVisibility; 1320 } 1321 1322 diags.Report(diag::err_drv_invalid_value) 1323 << arg->getAsString(args) << value; 1324 return DefaultVisibility; 1325 } 1326 1327 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1328 DiagnosticsEngine &Diags) { 1329 // FIXME: Cleanup per-file based stuff. 1330 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1331 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1332 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1333 #define LANGSTANDARD(id, name, desc, features) \ 1334 .Case(name, LangStandard::lang_##id) 1335 #include "clang/Frontend/LangStandards.def" 1336 .Default(LangStandard::lang_unspecified); 1337 if (LangStd == LangStandard::lang_unspecified) 1338 Diags.Report(diag::err_drv_invalid_value) 1339 << A->getAsString(Args) << A->getValue(); 1340 else { 1341 // Valid standard, check to make sure language and standard are 1342 // compatible. 1343 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1344 switch (IK) { 1345 case IK_C: 1346 case IK_ObjC: 1347 case IK_PreprocessedC: 1348 case IK_PreprocessedObjC: 1349 if (!(Std.isC89() || Std.isC99())) 1350 Diags.Report(diag::err_drv_argument_not_allowed_with) 1351 << A->getAsString(Args) << "C/ObjC"; 1352 break; 1353 case IK_CXX: 1354 case IK_ObjCXX: 1355 case IK_PreprocessedCXX: 1356 case IK_PreprocessedObjCXX: 1357 if (!Std.isCPlusPlus()) 1358 Diags.Report(diag::err_drv_argument_not_allowed_with) 1359 << A->getAsString(Args) << "C++/ObjC++"; 1360 break; 1361 case IK_OpenCL: 1362 if (!Std.isC99()) 1363 Diags.Report(diag::err_drv_argument_not_allowed_with) 1364 << A->getAsString(Args) << "OpenCL"; 1365 break; 1366 case IK_CUDA: 1367 case IK_PreprocessedCuda: 1368 if (!Std.isCPlusPlus()) 1369 Diags.Report(diag::err_drv_argument_not_allowed_with) 1370 << A->getAsString(Args) << "CUDA"; 1371 break; 1372 default: 1373 break; 1374 } 1375 } 1376 } 1377 1378 // -cl-std only applies for OpenCL language standards. 1379 // Override the -std option in this case. 1380 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1381 LangStandard::Kind OpenCLLangStd 1382 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1383 .Case("CL", LangStandard::lang_opencl) 1384 .Case("CL1.1", LangStandard::lang_opencl11) 1385 .Case("CL1.2", LangStandard::lang_opencl12) 1386 .Case("CL2.0", LangStandard::lang_opencl20) 1387 .Default(LangStandard::lang_unspecified); 1388 1389 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1390 Diags.Report(diag::err_drv_invalid_value) 1391 << A->getAsString(Args) << A->getValue(); 1392 } 1393 else 1394 LangStd = OpenCLLangStd; 1395 } 1396 1397 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1398 1399 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1400 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1401 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1402 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1403 // name, as it doesn't seem a useful distinction. 1404 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1405 Opts.GNUKeywords); 1406 1407 if (Args.hasArg(OPT_fno_operator_names)) 1408 Opts.CXXOperatorNames = 0; 1409 1410 if (Args.hasArg(OPT_fcuda_is_device)) 1411 Opts.CUDAIsDevice = 1; 1412 1413 if (Args.hasArg(OPT_fcuda_uses_libdevice)) 1414 Opts.CUDAUsesLibDevice = 1; 1415 1416 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device)) 1417 Opts.CUDAAllowHostCallsFromHostDevice = 1; 1418 1419 if (Args.hasArg(OPT_fcuda_disable_target_call_checks)) 1420 Opts.CUDADisableTargetCallChecks = 1; 1421 1422 if (Args.hasArg(OPT_fcuda_target_overloads)) 1423 Opts.CUDATargetOverloads = 1; 1424 1425 if (Opts.ObjC1) { 1426 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1427 StringRef value = arg->getValue(); 1428 if (Opts.ObjCRuntime.tryParse(value)) 1429 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1430 } 1431 1432 if (Args.hasArg(OPT_fobjc_gc_only)) 1433 Opts.setGC(LangOptions::GCOnly); 1434 else if (Args.hasArg(OPT_fobjc_gc)) 1435 Opts.setGC(LangOptions::HybridGC); 1436 else if (Args.hasArg(OPT_fobjc_arc)) { 1437 Opts.ObjCAutoRefCount = 1; 1438 if (!Opts.ObjCRuntime.allowsARC()) 1439 Diags.Report(diag::err_arc_unsupported_on_runtime); 1440 1441 // Only set ObjCARCWeak if ARC is enabled. 1442 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1443 Opts.ObjCARCWeak = 1; 1444 else 1445 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1446 } 1447 1448 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1449 Opts.ObjCInferRelatedResultType = 0; 1450 1451 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1452 Opts.ObjCSubscriptingLegacyRuntime = 1453 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1454 } 1455 1456 if (Args.hasArg(OPT_fgnu89_inline)) { 1457 if (Opts.CPlusPlus) 1458 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1459 << "C++/ObjC++"; 1460 else 1461 Opts.GNUInline = 1; 1462 } 1463 1464 if (Args.hasArg(OPT_fapple_kext)) { 1465 if (!Opts.CPlusPlus) 1466 Diags.Report(diag::warn_c_kext); 1467 else 1468 Opts.AppleKext = 1; 1469 } 1470 1471 if (Args.hasArg(OPT_print_ivar_layout)) 1472 Opts.ObjCGCBitmapPrint = 1; 1473 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1474 Opts.NoConstantCFStrings = 1; 1475 1476 if (Args.hasArg(OPT_faltivec)) 1477 Opts.AltiVec = 1; 1478 1479 if (Args.hasArg(OPT_fzvector)) 1480 Opts.ZVector = 1; 1481 1482 if (Args.hasArg(OPT_pthread)) 1483 Opts.POSIXThreads = 1; 1484 1485 // The value-visibility mode defaults to "default". 1486 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1487 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1488 } else { 1489 Opts.setValueVisibilityMode(DefaultVisibility); 1490 } 1491 1492 // The type-visibility mode defaults to the value-visibility mode. 1493 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1494 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1495 } else { 1496 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1497 } 1498 1499 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1500 Opts.InlineVisibilityHidden = 1; 1501 1502 if (Args.hasArg(OPT_ftrapv)) { 1503 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1504 // Set the handler, if one is specified. 1505 Opts.OverflowHandler = 1506 Args.getLastArgValue(OPT_ftrapv_handler); 1507 } 1508 else if (Args.hasArg(OPT_fwrapv)) 1509 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1510 1511 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1512 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1513 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1514 Opts.MSCompatibilityVersion = 0; 1515 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1516 VersionTuple VT; 1517 if (VT.tryParse(A->getValue())) 1518 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1519 << A->getValue(); 1520 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1521 VT.getMinor().getValueOr(0) * 100000 + 1522 VT.getSubminor().getValueOr(0); 1523 } 1524 1525 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1526 // is specified, or -std is set to a conforming mode. 1527 // Trigraphs are disabled by default in c++1z onwards. 1528 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1529 Opts.Trigraphs = 1530 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1531 1532 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1533 OPT_fno_dollars_in_identifiers, 1534 Opts.DollarIdents); 1535 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1536 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1537 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1538 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1539 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1540 Opts.ConstStrings); 1541 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1542 Opts.LaxVectorConversions = 0; 1543 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1544 Opts.ThreadsafeStatics = 0; 1545 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1546 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1547 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1548 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1549 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1550 1551 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1552 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1553 Opts.Blocks = Args.hasArg(OPT_fblocks); 1554 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1555 Opts.Modules = Args.hasArg(OPT_fmodules); 1556 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1557 Opts.ModulesDeclUse = 1558 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1559 Opts.ModulesLocalVisibility = 1560 Args.hasArg(OPT_fmodules_local_submodule_visibility); 1561 Opts.ModulesHideInternalLinkage = 1562 !Args.hasArg(OPT_fno_modules_hide_internal_linkage); 1563 Opts.ModulesSearchAll = Opts.Modules && 1564 !Args.hasArg(OPT_fno_modules_search_all) && 1565 Args.hasArg(OPT_fmodules_search_all); 1566 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1567 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1568 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1569 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1570 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1571 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1572 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1573 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1574 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1575 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1576 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1577 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1578 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1579 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1580 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1581 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1582 Opts.InstantiationDepth = 1583 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1584 Opts.ArrowDepth = 1585 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1586 Opts.ConstexprCallDepth = 1587 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1588 Opts.ConstexprStepLimit = 1589 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1590 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1591 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1592 Opts.NumLargeByValueCopy = 1593 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1594 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1595 Opts.ObjCConstantStringClass = 1596 Args.getLastArgValue(OPT_fconstant_string_class); 1597 Opts.ObjCDefaultSynthProperties = 1598 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1599 Opts.EncodeExtendedBlockSig = 1600 Args.hasArg(OPT_fencode_extended_block_signature); 1601 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1602 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1603 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1604 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1605 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1606 Opts.Static = Args.hasArg(OPT_static_define); 1607 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1608 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1609 || Args.hasArg(OPT_fdump_record_layouts); 1610 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1611 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1612 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1613 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1614 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1615 Opts.MRTD = Args.hasArg(OPT_mrtd); 1616 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1617 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1618 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1619 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1620 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1621 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1622 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1623 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1624 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1625 Opts.ImplementationOfModule = 1626 Args.getLastArgValue(OPT_fmodule_implementation_of); 1627 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1628 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 1629 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1630 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1631 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1632 1633 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1634 Opts.CurrentModule != Opts.ImplementationOfModule) { 1635 Diags.Report(diag::err_conflicting_module_names) 1636 << Opts.CurrentModule << Opts.ImplementationOfModule; 1637 } 1638 1639 // For now, we only support local submodule visibility in C++ (because we 1640 // heavily depend on the ODR for merging redefinitions). 1641 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1642 Diags.Report(diag::err_drv_argument_not_allowed_with) 1643 << "-fmodules-local-submodule-visibility" << "C"; 1644 1645 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1646 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1647 .Case("target", LangOptions::ASMM_Target) 1648 .Case("no", LangOptions::ASMM_Off) 1649 .Case("yes", LangOptions::ASMM_On) 1650 .Default(255)) { 1651 default: 1652 Diags.Report(diag::err_drv_invalid_value) 1653 << "-faddress-space-map-mangling=" << A->getValue(); 1654 break; 1655 case LangOptions::ASMM_Target: 1656 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1657 break; 1658 case LangOptions::ASMM_On: 1659 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1660 break; 1661 case LangOptions::ASMM_Off: 1662 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1663 break; 1664 } 1665 } 1666 1667 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1668 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1669 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1670 A->getValue()) 1671 .Case("single", 1672 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1673 .Case("multiple", 1674 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1675 .Case("virtual", 1676 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1677 .Default(LangOptions::PPTMK_BestCase); 1678 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1679 Diags.Report(diag::err_drv_invalid_value) 1680 << "-fms-memptr-rep=" << A->getValue(); 1681 1682 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1683 } 1684 1685 // Check if -fopenmp is specified. 1686 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp); 1687 Opts.OpenMPUseTLS = 1688 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 1689 1690 // Record whether the __DEPRECATED define was requested. 1691 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1692 OPT_fno_deprecated_macro, 1693 Opts.Deprecated); 1694 1695 // FIXME: Eliminate this dependency. 1696 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1697 OptSize = getOptimizationLevelSize(Args); 1698 Opts.Optimize = Opt != 0; 1699 Opts.OptimizeSize = OptSize != 0; 1700 1701 // This is the __NO_INLINE__ define, which just depends on things like the 1702 // optimization level and -fno-inline, not actually whether the backend has 1703 // inlining enabled. 1704 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1705 1706 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1707 Args.hasArg(OPT_cl_fast_relaxed_math); 1708 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1709 Args.hasArg(OPT_cl_finite_math_only) || 1710 Args.hasArg(OPT_cl_fast_relaxed_math); 1711 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 1712 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 1713 Args.hasArg(OPT_cl_fast_relaxed_math); 1714 1715 Opts.RetainCommentsFromSystemHeaders = 1716 Args.hasArg(OPT_fretain_comments_from_system_headers); 1717 1718 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1719 switch (SSP) { 1720 default: 1721 Diags.Report(diag::err_drv_invalid_value) 1722 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1723 break; 1724 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1725 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1726 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1727 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1728 } 1729 1730 // Parse -fsanitize= arguments. 1731 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 1732 Diags, Opts.Sanitize); 1733 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1734 Opts.SanitizeAddressFieldPadding = 1735 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1736 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 1737 } 1738 1739 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1740 FileManager &FileMgr, 1741 DiagnosticsEngine &Diags) { 1742 using namespace options; 1743 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1744 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1745 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1746 Opts.TokenCache = A->getValue(); 1747 else 1748 Opts.TokenCache = Opts.ImplicitPTHInclude; 1749 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1750 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1751 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1752 1753 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1754 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 1755 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1756 1757 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1758 StringRef Value(A->getValue()); 1759 size_t Comma = Value.find(','); 1760 unsigned Bytes = 0; 1761 unsigned EndOfLine = 0; 1762 1763 if (Comma == StringRef::npos || 1764 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1765 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1766 Diags.Report(diag::err_drv_preamble_format); 1767 else { 1768 Opts.PrecompiledPreambleBytes.first = Bytes; 1769 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1770 } 1771 } 1772 1773 // Add macros from the command line. 1774 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 1775 if (A->getOption().matches(OPT_D)) 1776 Opts.addMacroDef(A->getValue()); 1777 else 1778 Opts.addMacroUndef(A->getValue()); 1779 } 1780 1781 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1782 1783 // Add the ordered list of -includes. 1784 for (const Arg *A : Args.filtered(OPT_include)) 1785 Opts.Includes.emplace_back(A->getValue()); 1786 1787 for (const Arg *A : Args.filtered(OPT_chain_include)) 1788 Opts.ChainedIncludes.emplace_back(A->getValue()); 1789 1790 // Include 'altivec.h' if -faltivec option present 1791 if (Args.hasArg(OPT_faltivec)) 1792 Opts.Includes.emplace_back("altivec.h"); 1793 1794 for (const Arg *A : Args.filtered(OPT_remap_file)) { 1795 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 1796 1797 if (Split.second.empty()) { 1798 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1799 continue; 1800 } 1801 1802 Opts.addRemappedFile(Split.first, Split.second); 1803 } 1804 1805 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1806 StringRef Name = A->getValue(); 1807 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1808 .Case("libc++", ARCXX_libcxx) 1809 .Case("libstdc++", ARCXX_libstdcxx) 1810 .Case("none", ARCXX_nolib) 1811 .Default(~0U); 1812 if (Library == ~0U) 1813 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1814 else 1815 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1816 } 1817 } 1818 1819 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1820 ArgList &Args, 1821 frontend::ActionKind Action) { 1822 using namespace options; 1823 1824 switch (Action) { 1825 case frontend::ASTDeclList: 1826 case frontend::ASTDump: 1827 case frontend::ASTPrint: 1828 case frontend::ASTView: 1829 case frontend::EmitAssembly: 1830 case frontend::EmitBC: 1831 case frontend::EmitHTML: 1832 case frontend::EmitLLVM: 1833 case frontend::EmitLLVMOnly: 1834 case frontend::EmitCodeGenOnly: 1835 case frontend::EmitObj: 1836 case frontend::FixIt: 1837 case frontend::GenerateModule: 1838 case frontend::GeneratePCH: 1839 case frontend::GeneratePTH: 1840 case frontend::ParseSyntaxOnly: 1841 case frontend::ModuleFileInfo: 1842 case frontend::VerifyPCH: 1843 case frontend::PluginAction: 1844 case frontend::PrintDeclContext: 1845 case frontend::RewriteObjC: 1846 case frontend::RewriteTest: 1847 case frontend::RunAnalysis: 1848 case frontend::MigrateSource: 1849 Opts.ShowCPP = 0; 1850 break; 1851 1852 case frontend::DumpRawTokens: 1853 case frontend::DumpTokens: 1854 case frontend::InitOnly: 1855 case frontend::PrintPreamble: 1856 case frontend::PrintPreprocessedInput: 1857 case frontend::RewriteMacros: 1858 case frontend::RunPreprocessorOnly: 1859 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1860 break; 1861 } 1862 1863 Opts.ShowComments = Args.hasArg(OPT_C); 1864 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1865 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1866 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1867 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1868 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 1869 } 1870 1871 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1872 using namespace options; 1873 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1874 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1875 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 1876 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1877 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1878 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1879 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 1880 // Use the default target triple if unspecified. 1881 if (Opts.Triple.empty()) 1882 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1883 } 1884 1885 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1886 const char *const *ArgBegin, 1887 const char *const *ArgEnd, 1888 DiagnosticsEngine &Diags) { 1889 bool Success = true; 1890 1891 // Parse the arguments. 1892 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 1893 const unsigned IncludedFlagsBitmask = options::CC1Option; 1894 unsigned MissingArgIndex, MissingArgCount; 1895 InputArgList Args = 1896 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 1897 MissingArgCount, IncludedFlagsBitmask); 1898 1899 // Check for missing argument error. 1900 if (MissingArgCount) { 1901 Diags.Report(diag::err_drv_missing_argument) 1902 << Args.getArgString(MissingArgIndex) << MissingArgCount; 1903 Success = false; 1904 } 1905 1906 // Issue errors on unknown arguments. 1907 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 1908 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 1909 Success = false; 1910 } 1911 1912 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 1913 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 1914 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 1915 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags); 1916 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args); 1917 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 1918 // FIXME: We shouldn't have to pass the DashX option around here 1919 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags); 1920 ParseTargetArgs(Res.getTargetOpts(), Args); 1921 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 1922 Res.getTargetOpts()); 1923 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 1924 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 1925 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 1926 // PassManager in BackendUtil.cpp. They need to be initializd no matter 1927 // what the input type is. 1928 if (Args.hasArg(OPT_fobjc_arc)) 1929 Res.getLangOpts()->ObjCAutoRefCount = 1; 1930 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 1931 Diags, Res.getLangOpts()->Sanitize); 1932 } else { 1933 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 1934 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags); 1935 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1936 Res.getLangOpts()->ObjCExceptions = 1; 1937 } 1938 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1939 // PCH file and find the original header name. Remove the need to do that in 1940 // ParsePreprocessorArgs and remove the FileManager 1941 // parameters from the function and the "FileManager.h" #include. 1942 FileManager FileMgr(Res.getFileSystemOpts()); 1943 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 1944 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 1945 Res.getFrontendOpts().ProgramAction); 1946 return Success; 1947 } 1948 1949 namespace { 1950 1951 class ModuleSignature { 1952 SmallVector<uint64_t, 16> Data; 1953 unsigned CurBit; 1954 uint64_t CurValue; 1955 1956 public: 1957 ModuleSignature() : CurBit(0), CurValue(0) { } 1958 1959 void add(uint64_t Value, unsigned Bits); 1960 void add(StringRef Value); 1961 void flush(); 1962 1963 llvm::APInt getAsInteger() const; 1964 }; 1965 } 1966 1967 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1968 CurValue |= Value << CurBit; 1969 if (CurBit + NumBits < 64) { 1970 CurBit += NumBits; 1971 return; 1972 } 1973 1974 // Add the current word. 1975 Data.push_back(CurValue); 1976 1977 if (CurBit) 1978 CurValue = Value >> (64-CurBit); 1979 else 1980 CurValue = 0; 1981 CurBit = (CurBit+NumBits) & 63; 1982 } 1983 1984 void ModuleSignature::flush() { 1985 if (CurBit == 0) 1986 return; 1987 1988 Data.push_back(CurValue); 1989 CurBit = 0; 1990 CurValue = 0; 1991 } 1992 1993 void ModuleSignature::add(StringRef Value) { 1994 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1995 add(*I, 8); 1996 } 1997 1998 llvm::APInt ModuleSignature::getAsInteger() const { 1999 return llvm::APInt(Data.size() * 64, Data); 2000 } 2001 2002 std::string CompilerInvocation::getModuleHash() const { 2003 // Note: For QoI reasons, the things we use as a hash here should all be 2004 // dumped via the -module-info flag. 2005 using llvm::hash_code; 2006 using llvm::hash_value; 2007 using llvm::hash_combine; 2008 2009 // Start the signature with the compiler version. 2010 // FIXME: We'd rather use something more cryptographically sound than 2011 // CityHash, but this will do for now. 2012 hash_code code = hash_value(getClangFullRepositoryVersion()); 2013 2014 // Extend the signature with the language options 2015 #define LANGOPT(Name, Bits, Default, Description) \ 2016 code = hash_combine(code, LangOpts->Name); 2017 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2018 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2019 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2020 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2021 #include "clang/Basic/LangOptions.def" 2022 2023 for (StringRef Feature : LangOpts->ModuleFeatures) 2024 code = hash_combine(code, Feature); 2025 2026 // Extend the signature with the target options. 2027 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2028 TargetOpts->ABI); 2029 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2030 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2031 2032 // Extend the signature with preprocessor options. 2033 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2034 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2035 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2036 2037 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2038 I = getPreprocessorOpts().Macros.begin(), 2039 IEnd = getPreprocessorOpts().Macros.end(); 2040 I != IEnd; ++I) { 2041 // If we're supposed to ignore this macro for the purposes of modules, 2042 // don't put it into the hash. 2043 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2044 // Check whether we're ignoring this macro. 2045 StringRef MacroDef = I->first; 2046 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 2047 continue; 2048 } 2049 2050 code = hash_combine(code, I->first, I->second); 2051 } 2052 2053 // Extend the signature with the sysroot. 2054 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 2055 hsOpts.UseStandardSystemIncludes, 2056 hsOpts.UseStandardCXXIncludes, 2057 hsOpts.UseLibcxx); 2058 code = hash_combine(code, hsOpts.ResourceDir); 2059 2060 // Extend the signature with the user build path. 2061 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2062 2063 // Darwin-specific hack: if we have a sysroot, use the contents and 2064 // modification time of 2065 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2066 // as part of the module hash. 2067 if (!hsOpts.Sysroot.empty()) { 2068 SmallString<128> systemVersionFile; 2069 systemVersionFile += hsOpts.Sysroot; 2070 llvm::sys::path::append(systemVersionFile, "System"); 2071 llvm::sys::path::append(systemVersionFile, "Library"); 2072 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2073 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2074 2075 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2076 llvm::MemoryBuffer::getFile(systemVersionFile); 2077 if (buffer) { 2078 code = hash_combine(code, buffer.get()->getBuffer()); 2079 2080 struct stat statBuf; 2081 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2082 code = hash_combine(code, statBuf.st_mtime); 2083 } 2084 } 2085 2086 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2087 } 2088 2089 namespace clang { 2090 2091 template<typename IntTy> 2092 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2093 IntTy Default, 2094 DiagnosticsEngine *Diags) { 2095 IntTy Res = Default; 2096 if (Arg *A = Args.getLastArg(Id)) { 2097 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2098 if (Diags) 2099 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2100 << A->getValue(); 2101 } 2102 } 2103 return Res; 2104 } 2105 2106 2107 // Declared in clang/Frontend/Utils.h. 2108 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2109 DiagnosticsEngine *Diags) { 2110 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2111 } 2112 2113 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2114 uint64_t Default, 2115 DiagnosticsEngine *Diags) { 2116 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2117 } 2118 2119 void BuryPointer(const void *Ptr) { 2120 // This function may be called only a small fixed amount of times per each 2121 // invocation, otherwise we do actually have a leak which we want to report. 2122 // If this function is called more than kGraveYardMaxSize times, the pointers 2123 // will not be properly buried and a leak detector will report a leak, which 2124 // is what we want in such case. 2125 static const size_t kGraveYardMaxSize = 16; 2126 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2127 static std::atomic<unsigned> GraveYardSize; 2128 unsigned Idx = GraveYardSize++; 2129 if (Idx >= kGraveYardMaxSize) 2130 return; 2131 GraveYard[Idx] = Ptr; 2132 } 2133 2134 IntrusiveRefCntPtr<vfs::FileSystem> 2135 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2136 DiagnosticsEngine &Diags) { 2137 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2138 return vfs::getRealFileSystem(); 2139 2140 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2141 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2142 // earlier vfs files are on the bottom 2143 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2144 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2145 llvm::MemoryBuffer::getFile(File); 2146 if (!Buffer) { 2147 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2148 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2149 } 2150 2151 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2152 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2153 if (!FS.get()) { 2154 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2155 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2156 } 2157 Overlay->pushOverlay(FS); 2158 } 2159 return Overlay; 2160 } 2161 } // end namespace clang 2162