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 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 414 if (Args.hasArg(OPT_gdwarf_2)) 415 Opts.DwarfVersion = 2; 416 else if (Args.hasArg(OPT_gdwarf_3)) 417 Opts.DwarfVersion = 3; 418 else if (Args.hasArg(OPT_gdwarf_4)) 419 Opts.DwarfVersion = 4; 420 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo) 421 // Default Dwarf version is 4 if we are generating debug information. 422 Opts.DwarfVersion = 4; 423 424 if (const Arg *A = 425 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 426 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 427 428 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 429 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 430 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 431 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 432 OPT_fuse_register_sized_bitfield_access); 433 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 434 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 435 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 436 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 437 Opts.NoCommon = Args.hasArg(OPT_fno_common); 438 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 439 Opts.OptimizeSize = getOptimizationLevelSize(Args); 440 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 441 Args.hasArg(OPT_ffreestanding)); 442 Opts.UnrollLoops = 443 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 444 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 445 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 446 447 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 448 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 449 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 450 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) || 451 Args.hasArg(OPT_fprofile_instr_generate_EQ); 452 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ); 453 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 454 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping); 455 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 456 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 457 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 458 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 459 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 460 Opts.CodeModel = getCodeModel(Args, Diags); 461 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 462 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 463 Opts.DisableFree = Args.hasArg(OPT_disable_free); 464 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 465 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 466 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 467 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 468 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 469 Args.hasArg(OPT_cl_finite_math_only) || 470 Args.hasArg(OPT_cl_fast_relaxed_math)); 471 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 472 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 473 Args.hasArg(OPT_cl_finite_math_only) || 474 Args.hasArg(OPT_cl_fast_relaxed_math)); 475 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros); 476 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 477 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 478 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 479 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 480 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 481 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 482 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 483 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 484 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 485 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 486 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 487 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 488 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 489 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 490 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 491 Args.hasArg(OPT_cl_fast_relaxed_math); 492 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 493 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 494 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 495 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 496 Diags.Report(diag::err_drv_invalid_value) 497 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 498 << Opts.ThreadModel; 499 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 500 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 501 502 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 503 OPT_fno_function_sections, false); 504 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 505 OPT_fno_data_sections, false); 506 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 507 OPT_fno_unique_section_names, true); 508 509 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 510 511 Opts.PrepareForLTO = Args.hasArg(OPT_flto); 512 513 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 514 515 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 516 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 517 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 518 519 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 520 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 521 522 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 523 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 524 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 525 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 526 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 527 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 528 Opts.CoverageNoFunctionNamesInData = 529 Args.hasArg(OPT_coverage_no_function_names_in_data); 530 Opts.CoverageExitBlockBeforeBody = 531 Args.hasArg(OPT_coverage_exit_block_before_body); 532 if (Args.hasArg(OPT_coverage_version_EQ)) { 533 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 534 if (CoverageVersion.size() != 4) { 535 Diags.Report(diag::err_drv_invalid_value) 536 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 537 << CoverageVersion; 538 } else { 539 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 540 } 541 } 542 } 543 544 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 545 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 546 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 547 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 548 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 549 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 550 Opts.SanitizeCoverageType = 551 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 552 Opts.SanitizeCoverageIndirectCalls = 553 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 554 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 555 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 556 Opts.SanitizeCoverage8bitCounters = 557 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 558 Opts.SanitizeMemoryTrackOrigins = 559 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 560 Opts.SanitizeMemoryUseAfterDtor = 561 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 562 Opts.SSPBufferSize = 563 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 564 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 565 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 566 StringRef Val = A->getValue(); 567 unsigned StackAlignment = Opts.StackAlignment; 568 Val.getAsInteger(10, StackAlignment); 569 Opts.StackAlignment = StackAlignment; 570 } 571 572 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 573 StringRef Val = A->getValue(); 574 unsigned StackProbeSize = Opts.StackProbeSize; 575 Val.getAsInteger(0, StackProbeSize); 576 Opts.StackProbeSize = StackProbeSize; 577 } 578 579 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 580 StringRef Name = A->getValue(); 581 unsigned Method = llvm::StringSwitch<unsigned>(Name) 582 .Case("legacy", CodeGenOptions::Legacy) 583 .Case("non-legacy", CodeGenOptions::NonLegacy) 584 .Case("mixed", CodeGenOptions::Mixed) 585 .Default(~0U); 586 if (Method == ~0U) { 587 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 588 Success = false; 589 } else { 590 Opts.setObjCDispatchMethod( 591 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 592 } 593 } 594 595 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 596 StringRef Name = A->getValue(); 597 unsigned Model = llvm::StringSwitch<unsigned>(Name) 598 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 599 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 600 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 601 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 602 .Default(~0U); 603 if (Model == ~0U) { 604 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 605 Success = false; 606 } else { 607 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 608 } 609 } 610 611 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 612 StringRef Val = A->getValue(); 613 if (Val == "fast") 614 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 615 else if (Val == "on") 616 Opts.setFPContractMode(CodeGenOptions::FPC_On); 617 else if (Val == "off") 618 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 619 else 620 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 621 } 622 623 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 624 if (A->getOption().matches(OPT_fpcc_struct_return)) { 625 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 626 } else { 627 assert(A->getOption().matches(OPT_freg_struct_return)); 628 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 629 } 630 } 631 632 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 633 bool NeedLocTracking = false; 634 635 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 636 Opts.OptimizationRemarkPattern = 637 GenerateOptimizationRemarkRegex(Diags, Args, A); 638 NeedLocTracking = true; 639 } 640 641 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 642 Opts.OptimizationRemarkMissedPattern = 643 GenerateOptimizationRemarkRegex(Diags, Args, A); 644 NeedLocTracking = true; 645 } 646 647 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 648 Opts.OptimizationRemarkAnalysisPattern = 649 GenerateOptimizationRemarkRegex(Diags, Args, A); 650 NeedLocTracking = true; 651 } 652 653 // If the user requested to use a sample profile for PGO, then the 654 // backend will need to track source location information so the profile 655 // can be incorporated into the IR. 656 if (!Opts.SampleProfileFile.empty()) 657 NeedLocTracking = true; 658 659 // If the user requested a flag that requires source locations available in 660 // the backend, make sure that the backend tracks source location information. 661 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 662 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 663 664 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 665 666 // Parse -fsanitize-recover= arguments. 667 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 668 parseSanitizerKinds("-fsanitize-recover=", 669 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 670 Opts.SanitizeRecover); 671 parseSanitizerKinds("-fsanitize-trap=", 672 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 673 Opts.SanitizeTrap); 674 675 Opts.CudaGpuBinaryFileNames = 676 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 677 678 return Success; 679 } 680 681 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 682 ArgList &Args) { 683 using namespace options; 684 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 685 Opts.Targets = Args.getAllArgValues(OPT_MT); 686 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 687 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 688 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 689 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 690 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 691 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 692 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 693 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 694 Opts.ModuleDependencyOutputDir = 695 Args.getLastArgValue(OPT_module_dependency_dir); 696 if (Args.hasArg(OPT_MV)) 697 Opts.OutputFormat = DependencyOutputFormat::NMake; 698 } 699 700 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 701 DiagnosticsEngine *Diags) { 702 using namespace options; 703 bool Success = true; 704 705 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 706 if (Arg *A = 707 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 708 Opts.DiagnosticSerializationFile = A->getValue(); 709 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 710 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 711 Opts.Pedantic = Args.hasArg(OPT_pedantic); 712 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 713 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 714 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 715 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 716 OPT_fno_show_column, 717 /*Default=*/true); 718 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 719 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 720 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 721 722 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 723 724 // Default behavior is to not to show note include stacks. 725 Opts.ShowNoteIncludeStack = false; 726 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 727 OPT_fno_diagnostics_show_note_include_stack)) 728 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 729 Opts.ShowNoteIncludeStack = true; 730 731 StringRef ShowOverloads = 732 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 733 if (ShowOverloads == "best") 734 Opts.setShowOverloads(Ovl_Best); 735 else if (ShowOverloads == "all") 736 Opts.setShowOverloads(Ovl_All); 737 else { 738 Success = false; 739 if (Diags) 740 Diags->Report(diag::err_drv_invalid_value) 741 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 742 << ShowOverloads; 743 } 744 745 StringRef ShowCategory = 746 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 747 if (ShowCategory == "none") 748 Opts.ShowCategories = 0; 749 else if (ShowCategory == "id") 750 Opts.ShowCategories = 1; 751 else if (ShowCategory == "name") 752 Opts.ShowCategories = 2; 753 else { 754 Success = false; 755 if (Diags) 756 Diags->Report(diag::err_drv_invalid_value) 757 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 758 << ShowCategory; 759 } 760 761 StringRef Format = 762 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 763 if (Format == "clang") 764 Opts.setFormat(DiagnosticOptions::Clang); 765 else if (Format == "msvc") 766 Opts.setFormat(DiagnosticOptions::MSVC); 767 else if (Format == "msvc-fallback") { 768 Opts.setFormat(DiagnosticOptions::MSVC); 769 Opts.CLFallbackMode = true; 770 } else if (Format == "vi") 771 Opts.setFormat(DiagnosticOptions::Vi); 772 else { 773 Success = false; 774 if (Diags) 775 Diags->Report(diag::err_drv_invalid_value) 776 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 777 << Format; 778 } 779 780 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 781 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 782 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 783 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 784 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 785 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 786 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 787 Diags, DiagMask); 788 if (Args.hasArg(OPT_verify_ignore_unexpected)) 789 DiagMask = DiagnosticLevelMask::All; 790 Opts.setVerifyIgnoreUnexpected(DiagMask); 791 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 792 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 793 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 794 Opts.MacroBacktraceLimit = 795 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 796 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 797 Opts.TemplateBacktraceLimit = getLastArgIntValue( 798 Args, OPT_ftemplate_backtrace_limit, 799 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 800 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 801 Args, OPT_fconstexpr_backtrace_limit, 802 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 803 Opts.SpellCheckingLimit = getLastArgIntValue( 804 Args, OPT_fspell_checking_limit, 805 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 806 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 807 DiagnosticOptions::DefaultTabStop, Diags); 808 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 809 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 810 if (Diags) 811 Diags->Report(diag::warn_ignoring_ftabstop_value) 812 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 813 } 814 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 815 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 816 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 817 818 return Success; 819 } 820 821 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 822 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 823 } 824 825 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 826 DiagnosticsEngine &Diags) { 827 using namespace options; 828 Opts.ProgramAction = frontend::ParseSyntaxOnly; 829 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 830 switch (A->getOption().getID()) { 831 default: 832 llvm_unreachable("Invalid option in group!"); 833 case OPT_ast_list: 834 Opts.ProgramAction = frontend::ASTDeclList; break; 835 case OPT_ast_dump: 836 case OPT_ast_dump_lookups: 837 Opts.ProgramAction = frontend::ASTDump; break; 838 case OPT_ast_print: 839 Opts.ProgramAction = frontend::ASTPrint; break; 840 case OPT_ast_view: 841 Opts.ProgramAction = frontend::ASTView; break; 842 case OPT_dump_raw_tokens: 843 Opts.ProgramAction = frontend::DumpRawTokens; break; 844 case OPT_dump_tokens: 845 Opts.ProgramAction = frontend::DumpTokens; break; 846 case OPT_S: 847 Opts.ProgramAction = frontend::EmitAssembly; break; 848 case OPT_emit_llvm_bc: 849 Opts.ProgramAction = frontend::EmitBC; break; 850 case OPT_emit_html: 851 Opts.ProgramAction = frontend::EmitHTML; break; 852 case OPT_emit_llvm: 853 Opts.ProgramAction = frontend::EmitLLVM; break; 854 case OPT_emit_llvm_only: 855 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 856 case OPT_emit_codegen_only: 857 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 858 case OPT_emit_obj: 859 Opts.ProgramAction = frontend::EmitObj; break; 860 case OPT_fixit_EQ: 861 Opts.FixItSuffix = A->getValue(); 862 // fall-through! 863 case OPT_fixit: 864 Opts.ProgramAction = frontend::FixIt; break; 865 case OPT_emit_module: 866 Opts.ProgramAction = frontend::GenerateModule; break; 867 case OPT_emit_pch: 868 Opts.ProgramAction = frontend::GeneratePCH; break; 869 case OPT_emit_pth: 870 Opts.ProgramAction = frontend::GeneratePTH; break; 871 case OPT_init_only: 872 Opts.ProgramAction = frontend::InitOnly; break; 873 case OPT_fsyntax_only: 874 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 875 case OPT_module_file_info: 876 Opts.ProgramAction = frontend::ModuleFileInfo; break; 877 case OPT_verify_pch: 878 Opts.ProgramAction = frontend::VerifyPCH; break; 879 case OPT_print_decl_contexts: 880 Opts.ProgramAction = frontend::PrintDeclContext; break; 881 case OPT_print_preamble: 882 Opts.ProgramAction = frontend::PrintPreamble; break; 883 case OPT_E: 884 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 885 case OPT_rewrite_macros: 886 Opts.ProgramAction = frontend::RewriteMacros; break; 887 case OPT_rewrite_objc: 888 Opts.ProgramAction = frontend::RewriteObjC; break; 889 case OPT_rewrite_test: 890 Opts.ProgramAction = frontend::RewriteTest; break; 891 case OPT_analyze: 892 Opts.ProgramAction = frontend::RunAnalysis; break; 893 case OPT_migrate: 894 Opts.ProgramAction = frontend::MigrateSource; break; 895 case OPT_Eonly: 896 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 897 } 898 } 899 900 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 901 Opts.Plugins.emplace_back(A->getValue(0)); 902 Opts.ProgramAction = frontend::PluginAction; 903 Opts.ActionName = A->getValue(); 904 905 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 906 if (AA->getValue(0) == Opts.ActionName) 907 Opts.PluginArgs.emplace_back(AA->getValue(1)); 908 } 909 910 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 911 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 912 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) 913 for (const Arg *A : Args.filtered(OPT_plugin_arg)) 914 if (A->getValue(0) == Opts.AddPluginActions[i]) 915 Opts.AddPluginArgs[i].emplace_back(A->getValue(1)); 916 917 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 918 Opts.CodeCompletionAt = 919 ParsedSourceLocation::FromString(A->getValue()); 920 if (Opts.CodeCompletionAt.FileName.empty()) 921 Diags.Report(diag::err_drv_invalid_value) 922 << A->getAsString(Args) << A->getValue(); 923 } 924 Opts.DisableFree = Args.hasArg(OPT_disable_free); 925 926 Opts.OutputFile = Args.getLastArgValue(OPT_o); 927 Opts.Plugins = Args.getAllArgValues(OPT_load); 928 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 929 Opts.ShowHelp = Args.hasArg(OPT_help); 930 Opts.ShowStats = Args.hasArg(OPT_print_stats); 931 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 932 Opts.ShowVersion = Args.hasArg(OPT_version); 933 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 934 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 935 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 936 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 937 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 938 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 939 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 940 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 941 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 942 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 943 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 944 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 945 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 946 947 Opts.CodeCompleteOpts.IncludeMacros 948 = Args.hasArg(OPT_code_completion_macros); 949 Opts.CodeCompleteOpts.IncludeCodePatterns 950 = Args.hasArg(OPT_code_completion_patterns); 951 Opts.CodeCompleteOpts.IncludeGlobals 952 = !Args.hasArg(OPT_no_code_completion_globals); 953 Opts.CodeCompleteOpts.IncludeBriefComments 954 = Args.hasArg(OPT_code_completion_brief_comments); 955 956 Opts.OverrideRecordLayoutsFile 957 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 958 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 959 OPT_arcmt_modify, 960 OPT_arcmt_migrate)) { 961 switch (A->getOption().getID()) { 962 default: 963 llvm_unreachable("missed a case"); 964 case OPT_arcmt_check: 965 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 966 break; 967 case OPT_arcmt_modify: 968 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 969 break; 970 case OPT_arcmt_migrate: 971 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 972 break; 973 } 974 } 975 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 976 Opts.ARCMTMigrateReportOut 977 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 978 Opts.ARCMTMigrateEmitARCErrors 979 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 980 981 if (Args.hasArg(OPT_objcmt_migrate_literals)) 982 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 983 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 984 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 985 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 986 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 987 if (Args.hasArg(OPT_objcmt_migrate_property)) 988 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 989 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 990 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 991 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 992 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 993 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 994 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 995 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 996 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 997 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 998 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 999 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1000 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1001 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1002 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1003 if (Args.hasArg(OPT_objcmt_atomic_property)) 1004 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1005 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1006 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1007 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1008 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1009 if (Args.hasArg(OPT_objcmt_migrate_all)) 1010 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1011 1012 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1013 1014 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1015 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1016 Diags.Report(diag::err_drv_argument_not_allowed_with) 1017 << "ARC migration" << "ObjC migration"; 1018 } 1019 1020 InputKind DashX = IK_None; 1021 if (const Arg *A = Args.getLastArg(OPT_x)) { 1022 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1023 .Case("c", IK_C) 1024 .Case("cl", IK_OpenCL) 1025 .Case("cuda", IK_CUDA) 1026 .Case("c++", IK_CXX) 1027 .Case("objective-c", IK_ObjC) 1028 .Case("objective-c++", IK_ObjCXX) 1029 .Case("cpp-output", IK_PreprocessedC) 1030 .Case("assembler-with-cpp", IK_Asm) 1031 .Case("c++-cpp-output", IK_PreprocessedCXX) 1032 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1033 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1034 .Case("objc-cpp-output", IK_PreprocessedObjC) 1035 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1036 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1037 .Case("c-header", IK_C) 1038 .Case("cl-header", IK_OpenCL) 1039 .Case("objective-c-header", IK_ObjC) 1040 .Case("c++-header", IK_CXX) 1041 .Case("objective-c++-header", IK_ObjCXX) 1042 .Cases("ast", "pcm", IK_AST) 1043 .Case("ir", IK_LLVM_IR) 1044 .Default(IK_None); 1045 if (DashX == IK_None) 1046 Diags.Report(diag::err_drv_invalid_value) 1047 << A->getAsString(Args) << A->getValue(); 1048 } 1049 1050 // '-' is the default input if none is given. 1051 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1052 Opts.Inputs.clear(); 1053 if (Inputs.empty()) 1054 Inputs.push_back("-"); 1055 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1056 InputKind IK = DashX; 1057 if (IK == IK_None) { 1058 IK = FrontendOptions::getInputKindForExtension( 1059 StringRef(Inputs[i]).rsplit('.').second); 1060 // FIXME: Remove this hack. 1061 if (i == 0) 1062 DashX = IK; 1063 } 1064 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1065 } 1066 1067 return DashX; 1068 } 1069 1070 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1071 void *MainAddr) { 1072 std::string ClangExecutable = 1073 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1074 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1075 1076 // Compute the path to the resource directory. 1077 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1078 SmallString<128> P(Dir); 1079 if (ClangResourceDir != "") { 1080 llvm::sys::path::append(P, ClangResourceDir); 1081 } else { 1082 StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX); 1083 llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang", 1084 CLANG_VERSION_STRING); 1085 } 1086 1087 return P.str(); 1088 } 1089 1090 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1091 using namespace options; 1092 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1093 Opts.Verbose = Args.hasArg(OPT_v); 1094 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1095 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1096 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1097 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1098 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1099 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1100 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1101 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1102 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1103 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1104 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1105 Opts.ModuleCachePruneInterval = 1106 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1107 Opts.ModuleCachePruneAfter = 1108 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1109 Opts.ModulesValidateOncePerBuildSession = 1110 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1111 Opts.BuildSessionTimestamp = 1112 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1113 Opts.ModulesValidateSystemHeaders = 1114 Args.hasArg(OPT_fmodules_validate_system_headers); 1115 1116 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1117 StringRef MacroDef = A->getValue(); 1118 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1119 } 1120 1121 // Add -I..., -F..., and -index-header-map options in order. 1122 bool IsIndexHeaderMap = false; 1123 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1124 if (A->getOption().matches(OPT_index_header_map)) { 1125 // -index-header-map applies to the next -I or -F. 1126 IsIndexHeaderMap = true; 1127 continue; 1128 } 1129 1130 frontend::IncludeDirGroup Group = 1131 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1132 1133 Opts.AddPath(A->getValue(), Group, 1134 /*IsFramework=*/A->getOption().matches(OPT_F), true); 1135 IsIndexHeaderMap = false; 1136 } 1137 1138 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1139 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1140 for (const Arg *A : 1141 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1142 if (A->getOption().matches(OPT_iprefix)) 1143 Prefix = A->getValue(); 1144 else if (A->getOption().matches(OPT_iwithprefix)) 1145 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1146 else 1147 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1148 } 1149 1150 for (const Arg *A : Args.filtered(OPT_idirafter)) 1151 Opts.AddPath(A->getValue(), frontend::After, false, true); 1152 for (const Arg *A : Args.filtered(OPT_iquote)) 1153 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1154 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1155 Opts.AddPath(A->getValue(), frontend::System, false, 1156 !A->getOption().matches(OPT_iwithsysroot)); 1157 for (const Arg *A : Args.filtered(OPT_iframework)) 1158 Opts.AddPath(A->getValue(), frontend::System, true, true); 1159 1160 // Add the paths for the various language specific isystem flags. 1161 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1162 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1163 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1164 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1165 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1166 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1167 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1168 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1169 1170 // Add the internal paths from a driver that detects standard include paths. 1171 for (const Arg *A : 1172 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1173 frontend::IncludeDirGroup Group = frontend::System; 1174 if (A->getOption().matches(OPT_internal_externc_isystem)) 1175 Group = frontend::ExternCSystem; 1176 Opts.AddPath(A->getValue(), Group, false, true); 1177 } 1178 1179 // Add the path prefixes which are implicitly treated as being system headers. 1180 for (const Arg *A : 1181 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1182 Opts.AddSystemHeaderPrefix( 1183 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1184 1185 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1186 Opts.AddVFSOverlayFile(A->getValue()); 1187 } 1188 1189 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1190 LangStandard::Kind LangStd) { 1191 // Set some properties which depend solely on the input kind; it would be nice 1192 // to move these to the language standard, and have the driver resolve the 1193 // input kind + language standard. 1194 if (IK == IK_Asm) { 1195 Opts.AsmPreprocessor = 1; 1196 } else if (IK == IK_ObjC || 1197 IK == IK_ObjCXX || 1198 IK == IK_PreprocessedObjC || 1199 IK == IK_PreprocessedObjCXX) { 1200 Opts.ObjC1 = Opts.ObjC2 = 1; 1201 } 1202 1203 if (LangStd == LangStandard::lang_unspecified) { 1204 // Based on the base language, pick one. 1205 switch (IK) { 1206 case IK_None: 1207 case IK_AST: 1208 case IK_LLVM_IR: 1209 llvm_unreachable("Invalid input kind!"); 1210 case IK_OpenCL: 1211 LangStd = LangStandard::lang_opencl; 1212 break; 1213 case IK_CUDA: 1214 case IK_PreprocessedCuda: 1215 LangStd = LangStandard::lang_cuda; 1216 break; 1217 case IK_Asm: 1218 case IK_C: 1219 case IK_PreprocessedC: 1220 case IK_ObjC: 1221 case IK_PreprocessedObjC: 1222 LangStd = LangStandard::lang_gnu11; 1223 break; 1224 case IK_CXX: 1225 case IK_PreprocessedCXX: 1226 case IK_ObjCXX: 1227 case IK_PreprocessedObjCXX: 1228 LangStd = LangStandard::lang_gnucxx98; 1229 break; 1230 } 1231 } 1232 1233 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1234 Opts.LineComment = Std.hasLineComments(); 1235 Opts.C99 = Std.isC99(); 1236 Opts.C11 = Std.isC11(); 1237 Opts.CPlusPlus = Std.isCPlusPlus(); 1238 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1239 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1240 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1241 Opts.Digraphs = Std.hasDigraphs(); 1242 Opts.GNUMode = Std.isGNUMode(); 1243 Opts.GNUInline = Std.isC89(); 1244 Opts.HexFloats = Std.hasHexFloats(); 1245 Opts.ImplicitInt = Std.hasImplicitInt(); 1246 1247 // Set OpenCL Version. 1248 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1249 if (LangStd == LangStandard::lang_opencl) 1250 Opts.OpenCLVersion = 100; 1251 else if (LangStd == LangStandard::lang_opencl11) 1252 Opts.OpenCLVersion = 110; 1253 else if (LangStd == LangStandard::lang_opencl12) 1254 Opts.OpenCLVersion = 120; 1255 else if (LangStd == LangStandard::lang_opencl20) 1256 Opts.OpenCLVersion = 200; 1257 1258 // OpenCL has some additional defaults. 1259 if (Opts.OpenCL) { 1260 Opts.AltiVec = 0; 1261 Opts.CXXOperatorNames = 1; 1262 Opts.LaxVectorConversions = 0; 1263 Opts.DefaultFPContract = 1; 1264 Opts.NativeHalfType = 1; 1265 } 1266 1267 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1268 LangStd == LangStandard::lang_cuda; 1269 1270 // OpenCL and C++ both have bool, true, false keywords. 1271 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1272 1273 // OpenCL has half keyword 1274 Opts.Half = Opts.OpenCL; 1275 1276 // C++ has wchar_t keyword. 1277 Opts.WChar = Opts.CPlusPlus; 1278 1279 Opts.GNUKeywords = Opts.GNUMode; 1280 Opts.CXXOperatorNames = Opts.CPlusPlus; 1281 1282 Opts.DollarIdents = !Opts.AsmPreprocessor; 1283 } 1284 1285 /// Attempt to parse a visibility value out of the given argument. 1286 static Visibility parseVisibility(Arg *arg, ArgList &args, 1287 DiagnosticsEngine &diags) { 1288 StringRef value = arg->getValue(); 1289 if (value == "default") { 1290 return DefaultVisibility; 1291 } else if (value == "hidden") { 1292 return HiddenVisibility; 1293 } else if (value == "protected") { 1294 // FIXME: diagnose if target does not support protected visibility 1295 return ProtectedVisibility; 1296 } 1297 1298 diags.Report(diag::err_drv_invalid_value) 1299 << arg->getAsString(args) << value; 1300 return DefaultVisibility; 1301 } 1302 1303 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1304 DiagnosticsEngine &Diags) { 1305 // FIXME: Cleanup per-file based stuff. 1306 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1307 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1308 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1309 #define LANGSTANDARD(id, name, desc, features) \ 1310 .Case(name, LangStandard::lang_##id) 1311 #include "clang/Frontend/LangStandards.def" 1312 .Default(LangStandard::lang_unspecified); 1313 if (LangStd == LangStandard::lang_unspecified) 1314 Diags.Report(diag::err_drv_invalid_value) 1315 << A->getAsString(Args) << A->getValue(); 1316 else { 1317 // Valid standard, check to make sure language and standard are 1318 // compatible. 1319 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1320 switch (IK) { 1321 case IK_C: 1322 case IK_ObjC: 1323 case IK_PreprocessedC: 1324 case IK_PreprocessedObjC: 1325 if (!(Std.isC89() || Std.isC99())) 1326 Diags.Report(diag::err_drv_argument_not_allowed_with) 1327 << A->getAsString(Args) << "C/ObjC"; 1328 break; 1329 case IK_CXX: 1330 case IK_ObjCXX: 1331 case IK_PreprocessedCXX: 1332 case IK_PreprocessedObjCXX: 1333 if (!Std.isCPlusPlus()) 1334 Diags.Report(diag::err_drv_argument_not_allowed_with) 1335 << A->getAsString(Args) << "C++/ObjC++"; 1336 break; 1337 case IK_OpenCL: 1338 if (!Std.isC99()) 1339 Diags.Report(diag::err_drv_argument_not_allowed_with) 1340 << A->getAsString(Args) << "OpenCL"; 1341 break; 1342 case IK_CUDA: 1343 case IK_PreprocessedCuda: 1344 if (!Std.isCPlusPlus()) 1345 Diags.Report(diag::err_drv_argument_not_allowed_with) 1346 << A->getAsString(Args) << "CUDA"; 1347 break; 1348 default: 1349 break; 1350 } 1351 } 1352 } 1353 1354 // -cl-std only applies for OpenCL language standards. 1355 // Override the -std option in this case. 1356 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1357 LangStandard::Kind OpenCLLangStd 1358 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1359 .Case("CL", LangStandard::lang_opencl) 1360 .Case("CL1.1", LangStandard::lang_opencl11) 1361 .Case("CL1.2", LangStandard::lang_opencl12) 1362 .Case("CL2.0", LangStandard::lang_opencl20) 1363 .Default(LangStandard::lang_unspecified); 1364 1365 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1366 Diags.Report(diag::err_drv_invalid_value) 1367 << A->getAsString(Args) << A->getValue(); 1368 } 1369 else 1370 LangStd = OpenCLLangStd; 1371 } 1372 1373 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1374 1375 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1376 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1377 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1378 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1379 // name, as it doesn't seem a useful distinction. 1380 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1381 Opts.GNUKeywords); 1382 1383 if (Args.hasArg(OPT_fno_operator_names)) 1384 Opts.CXXOperatorNames = 0; 1385 1386 if (Args.hasArg(OPT_fcuda_is_device)) 1387 Opts.CUDAIsDevice = 1; 1388 1389 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device)) 1390 Opts.CUDAAllowHostCallsFromHostDevice = 1; 1391 1392 if (Args.hasArg(OPT_fcuda_disable_target_call_checks)) 1393 Opts.CUDADisableTargetCallChecks = 1; 1394 1395 if (Opts.ObjC1) { 1396 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1397 StringRef value = arg->getValue(); 1398 if (Opts.ObjCRuntime.tryParse(value)) 1399 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1400 } 1401 1402 if (Args.hasArg(OPT_fobjc_gc_only)) 1403 Opts.setGC(LangOptions::GCOnly); 1404 else if (Args.hasArg(OPT_fobjc_gc)) 1405 Opts.setGC(LangOptions::HybridGC); 1406 else if (Args.hasArg(OPT_fobjc_arc)) { 1407 Opts.ObjCAutoRefCount = 1; 1408 if (!Opts.ObjCRuntime.allowsARC()) 1409 Diags.Report(diag::err_arc_unsupported_on_runtime); 1410 1411 // Only set ObjCARCWeak if ARC is enabled. 1412 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1413 Opts.ObjCARCWeak = 1; 1414 else 1415 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1416 } 1417 1418 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1419 Opts.ObjCInferRelatedResultType = 0; 1420 1421 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1422 Opts.ObjCSubscriptingLegacyRuntime = 1423 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1424 } 1425 1426 if (Args.hasArg(OPT_fgnu89_inline)) { 1427 if (Opts.CPlusPlus) 1428 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1429 << "C++/ObjC++"; 1430 else 1431 Opts.GNUInline = 1; 1432 } 1433 1434 if (Args.hasArg(OPT_fapple_kext)) { 1435 if (!Opts.CPlusPlus) 1436 Diags.Report(diag::warn_c_kext); 1437 else 1438 Opts.AppleKext = 1; 1439 } 1440 1441 if (Args.hasArg(OPT_print_ivar_layout)) 1442 Opts.ObjCGCBitmapPrint = 1; 1443 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1444 Opts.NoConstantCFStrings = 1; 1445 1446 if (Args.hasArg(OPT_faltivec)) 1447 Opts.AltiVec = 1; 1448 1449 if (Args.hasArg(OPT_pthread)) 1450 Opts.POSIXThreads = 1; 1451 1452 // The value-visibility mode defaults to "default". 1453 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1454 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1455 } else { 1456 Opts.setValueVisibilityMode(DefaultVisibility); 1457 } 1458 1459 // The type-visibility mode defaults to the value-visibility mode. 1460 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1461 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1462 } else { 1463 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1464 } 1465 1466 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1467 Opts.InlineVisibilityHidden = 1; 1468 1469 if (Args.hasArg(OPT_ftrapv)) { 1470 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1471 // Set the handler, if one is specified. 1472 Opts.OverflowHandler = 1473 Args.getLastArgValue(OPT_ftrapv_handler); 1474 } 1475 else if (Args.hasArg(OPT_fwrapv)) 1476 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1477 1478 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1479 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1480 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1481 Opts.MSCompatibilityVersion = 0; 1482 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1483 VersionTuple VT; 1484 if (VT.tryParse(A->getValue())) 1485 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1486 << A->getValue(); 1487 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1488 VT.getMinor().getValueOr(0) * 100000 + 1489 VT.getSubminor().getValueOr(0); 1490 } 1491 1492 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1493 // is specified, or -std is set to a conforming mode. 1494 // Trigraphs are disabled by default in c++1z onwards. 1495 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1496 Opts.Trigraphs = 1497 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1498 1499 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1500 OPT_fno_dollars_in_identifiers, 1501 Opts.DollarIdents); 1502 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1503 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1504 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1505 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1506 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1507 Opts.ConstStrings); 1508 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1509 Opts.LaxVectorConversions = 0; 1510 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1511 Opts.ThreadsafeStatics = 0; 1512 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1513 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1514 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1515 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1516 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1517 1518 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1519 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1520 Opts.Blocks = Args.hasArg(OPT_fblocks); 1521 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1522 Opts.Modules = Args.hasArg(OPT_fmodules); 1523 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1524 Opts.ModulesDeclUse = 1525 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1526 Opts.ModulesLocalVisibility = 1527 Args.hasArg(OPT_fmodules_local_submodule_visibility); 1528 Opts.ModulesHideInternalLinkage = 1529 !Args.hasArg(OPT_fno_modules_hide_internal_linkage); 1530 Opts.ModulesSearchAll = Opts.Modules && 1531 !Args.hasArg(OPT_fno_modules_search_all) && 1532 Args.hasArg(OPT_fmodules_search_all); 1533 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1534 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1535 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1536 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1537 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1538 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1539 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1540 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1541 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1542 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1543 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1544 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1545 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1546 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1547 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1548 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1549 Opts.InstantiationDepth = 1550 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1551 Opts.ArrowDepth = 1552 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1553 Opts.ConstexprCallDepth = 1554 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1555 Opts.ConstexprStepLimit = 1556 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1557 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1558 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1559 Opts.NumLargeByValueCopy = 1560 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1561 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1562 Opts.ObjCConstantStringClass = 1563 Args.getLastArgValue(OPT_fconstant_string_class); 1564 Opts.ObjCDefaultSynthProperties = 1565 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1566 Opts.EncodeExtendedBlockSig = 1567 Args.hasArg(OPT_fencode_extended_block_signature); 1568 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1569 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1570 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1571 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1572 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1573 Opts.Static = Args.hasArg(OPT_static_define); 1574 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1575 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1576 || Args.hasArg(OPT_fdump_record_layouts); 1577 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1578 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1579 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1580 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1581 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1582 Opts.MRTD = Args.hasArg(OPT_mrtd); 1583 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1584 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1585 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1586 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1587 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1588 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1589 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1590 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1591 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1592 Opts.ImplementationOfModule = 1593 Args.getLastArgValue(OPT_fmodule_implementation_of); 1594 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1595 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 1596 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1597 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1598 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1599 1600 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1601 Opts.CurrentModule != Opts.ImplementationOfModule) { 1602 Diags.Report(diag::err_conflicting_module_names) 1603 << Opts.CurrentModule << Opts.ImplementationOfModule; 1604 } 1605 1606 // For now, we only support local submodule visibility in C++ (because we 1607 // heavily depend on the ODR for merging redefinitions). 1608 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1609 Diags.Report(diag::err_drv_argument_not_allowed_with) 1610 << "-fmodules-local-submodule-visibility" << "C"; 1611 1612 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1613 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1614 .Case("target", LangOptions::ASMM_Target) 1615 .Case("no", LangOptions::ASMM_Off) 1616 .Case("yes", LangOptions::ASMM_On) 1617 .Default(255)) { 1618 default: 1619 Diags.Report(diag::err_drv_invalid_value) 1620 << "-faddress-space-map-mangling=" << A->getValue(); 1621 break; 1622 case LangOptions::ASMM_Target: 1623 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1624 break; 1625 case LangOptions::ASMM_On: 1626 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1627 break; 1628 case LangOptions::ASMM_Off: 1629 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1630 break; 1631 } 1632 } 1633 1634 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1635 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1636 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1637 A->getValue()) 1638 .Case("single", 1639 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1640 .Case("multiple", 1641 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1642 .Case("virtual", 1643 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1644 .Default(LangOptions::PPTMK_BestCase); 1645 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1646 Diags.Report(diag::err_drv_invalid_value) 1647 << "-fms-memptr-rep=" << A->getValue(); 1648 1649 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1650 } 1651 1652 // Check if -fopenmp is specified. 1653 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp); 1654 Opts.OpenMPUseTLS = 1655 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 1656 1657 // Record whether the __DEPRECATED define was requested. 1658 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1659 OPT_fno_deprecated_macro, 1660 Opts.Deprecated); 1661 1662 // FIXME: Eliminate this dependency. 1663 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1664 OptSize = getOptimizationLevelSize(Args); 1665 Opts.Optimize = Opt != 0; 1666 Opts.OptimizeSize = OptSize != 0; 1667 1668 // This is the __NO_INLINE__ define, which just depends on things like the 1669 // optimization level and -fno-inline, not actually whether the backend has 1670 // inlining enabled. 1671 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1672 1673 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1674 Args.hasArg(OPT_cl_fast_relaxed_math); 1675 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1676 Args.hasArg(OPT_cl_finite_math_only) || 1677 Args.hasArg(OPT_cl_fast_relaxed_math); 1678 1679 Opts.RetainCommentsFromSystemHeaders = 1680 Args.hasArg(OPT_fretain_comments_from_system_headers); 1681 1682 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1683 switch (SSP) { 1684 default: 1685 Diags.Report(diag::err_drv_invalid_value) 1686 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1687 break; 1688 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1689 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1690 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1691 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1692 } 1693 1694 // Parse -fsanitize= arguments. 1695 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 1696 Diags, Opts.Sanitize); 1697 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1698 Opts.SanitizeAddressFieldPadding = 1699 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1700 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 1701 } 1702 1703 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1704 FileManager &FileMgr, 1705 DiagnosticsEngine &Diags) { 1706 using namespace options; 1707 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1708 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1709 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1710 Opts.TokenCache = A->getValue(); 1711 else 1712 Opts.TokenCache = Opts.ImplicitPTHInclude; 1713 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1714 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1715 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1716 1717 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1718 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 1719 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1720 1721 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1722 StringRef Value(A->getValue()); 1723 size_t Comma = Value.find(','); 1724 unsigned Bytes = 0; 1725 unsigned EndOfLine = 0; 1726 1727 if (Comma == StringRef::npos || 1728 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1729 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1730 Diags.Report(diag::err_drv_preamble_format); 1731 else { 1732 Opts.PrecompiledPreambleBytes.first = Bytes; 1733 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1734 } 1735 } 1736 1737 // Add macros from the command line. 1738 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 1739 if (A->getOption().matches(OPT_D)) 1740 Opts.addMacroDef(A->getValue()); 1741 else 1742 Opts.addMacroUndef(A->getValue()); 1743 } 1744 1745 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1746 1747 // Add the ordered list of -includes. 1748 for (const Arg *A : Args.filtered(OPT_include)) 1749 Opts.Includes.emplace_back(A->getValue()); 1750 1751 for (const Arg *A : Args.filtered(OPT_chain_include)) 1752 Opts.ChainedIncludes.emplace_back(A->getValue()); 1753 1754 // Include 'altivec.h' if -faltivec option present 1755 if (Args.hasArg(OPT_faltivec)) 1756 Opts.Includes.emplace_back("altivec.h"); 1757 1758 for (const Arg *A : Args.filtered(OPT_remap_file)) { 1759 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 1760 1761 if (Split.second.empty()) { 1762 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1763 continue; 1764 } 1765 1766 Opts.addRemappedFile(Split.first, Split.second); 1767 } 1768 1769 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1770 StringRef Name = A->getValue(); 1771 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1772 .Case("libc++", ARCXX_libcxx) 1773 .Case("libstdc++", ARCXX_libstdcxx) 1774 .Case("none", ARCXX_nolib) 1775 .Default(~0U); 1776 if (Library == ~0U) 1777 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1778 else 1779 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1780 } 1781 } 1782 1783 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1784 ArgList &Args, 1785 frontend::ActionKind Action) { 1786 using namespace options; 1787 1788 switch (Action) { 1789 case frontend::ASTDeclList: 1790 case frontend::ASTDump: 1791 case frontend::ASTPrint: 1792 case frontend::ASTView: 1793 case frontend::EmitAssembly: 1794 case frontend::EmitBC: 1795 case frontend::EmitHTML: 1796 case frontend::EmitLLVM: 1797 case frontend::EmitLLVMOnly: 1798 case frontend::EmitCodeGenOnly: 1799 case frontend::EmitObj: 1800 case frontend::FixIt: 1801 case frontend::GenerateModule: 1802 case frontend::GeneratePCH: 1803 case frontend::GeneratePTH: 1804 case frontend::ParseSyntaxOnly: 1805 case frontend::ModuleFileInfo: 1806 case frontend::VerifyPCH: 1807 case frontend::PluginAction: 1808 case frontend::PrintDeclContext: 1809 case frontend::RewriteObjC: 1810 case frontend::RewriteTest: 1811 case frontend::RunAnalysis: 1812 case frontend::MigrateSource: 1813 Opts.ShowCPP = 0; 1814 break; 1815 1816 case frontend::DumpRawTokens: 1817 case frontend::DumpTokens: 1818 case frontend::InitOnly: 1819 case frontend::PrintPreamble: 1820 case frontend::PrintPreprocessedInput: 1821 case frontend::RewriteMacros: 1822 case frontend::RunPreprocessorOnly: 1823 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1824 break; 1825 } 1826 1827 Opts.ShowComments = Args.hasArg(OPT_C); 1828 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1829 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1830 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1831 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1832 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 1833 } 1834 1835 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1836 using namespace options; 1837 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1838 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1839 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 1840 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1841 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1842 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1843 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 1844 // Use the default target triple if unspecified. 1845 if (Opts.Triple.empty()) 1846 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1847 } 1848 1849 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1850 const char *const *ArgBegin, 1851 const char *const *ArgEnd, 1852 DiagnosticsEngine &Diags) { 1853 bool Success = true; 1854 1855 // Parse the arguments. 1856 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 1857 const unsigned IncludedFlagsBitmask = options::CC1Option; 1858 unsigned MissingArgIndex, MissingArgCount; 1859 InputArgList Args = 1860 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 1861 MissingArgCount, IncludedFlagsBitmask); 1862 1863 // Check for missing argument error. 1864 if (MissingArgCount) { 1865 Diags.Report(diag::err_drv_missing_argument) 1866 << Args.getArgString(MissingArgIndex) << MissingArgCount; 1867 Success = false; 1868 } 1869 1870 // Issue errors on unknown arguments. 1871 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 1872 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 1873 Success = false; 1874 } 1875 1876 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 1877 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 1878 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 1879 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags); 1880 ParseCommentArgs(Res.getLangOpts()->CommentOpts, Args); 1881 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 1882 // FIXME: We shouldn't have to pass the DashX option around here 1883 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags); 1884 ParseTargetArgs(Res.getTargetOpts(), Args); 1885 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 1886 Res.getTargetOpts()); 1887 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 1888 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1889 ParseLangArgs(*Res.getLangOpts(), Args, DashX, Diags); 1890 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1891 Res.getLangOpts()->ObjCExceptions = 1; 1892 } 1893 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1894 // PCH file and find the original header name. Remove the need to do that in 1895 // ParsePreprocessorArgs and remove the FileManager 1896 // parameters from the function and the "FileManager.h" #include. 1897 FileManager FileMgr(Res.getFileSystemOpts()); 1898 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 1899 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 1900 Res.getFrontendOpts().ProgramAction); 1901 return Success; 1902 } 1903 1904 namespace { 1905 1906 class ModuleSignature { 1907 SmallVector<uint64_t, 16> Data; 1908 unsigned CurBit; 1909 uint64_t CurValue; 1910 1911 public: 1912 ModuleSignature() : CurBit(0), CurValue(0) { } 1913 1914 void add(uint64_t Value, unsigned Bits); 1915 void add(StringRef Value); 1916 void flush(); 1917 1918 llvm::APInt getAsInteger() const; 1919 }; 1920 } 1921 1922 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1923 CurValue |= Value << CurBit; 1924 if (CurBit + NumBits < 64) { 1925 CurBit += NumBits; 1926 return; 1927 } 1928 1929 // Add the current word. 1930 Data.push_back(CurValue); 1931 1932 if (CurBit) 1933 CurValue = Value >> (64-CurBit); 1934 else 1935 CurValue = 0; 1936 CurBit = (CurBit+NumBits) & 63; 1937 } 1938 1939 void ModuleSignature::flush() { 1940 if (CurBit == 0) 1941 return; 1942 1943 Data.push_back(CurValue); 1944 CurBit = 0; 1945 CurValue = 0; 1946 } 1947 1948 void ModuleSignature::add(StringRef Value) { 1949 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1950 add(*I, 8); 1951 } 1952 1953 llvm::APInt ModuleSignature::getAsInteger() const { 1954 return llvm::APInt(Data.size() * 64, Data); 1955 } 1956 1957 std::string CompilerInvocation::getModuleHash() const { 1958 // Note: For QoI reasons, the things we use as a hash here should all be 1959 // dumped via the -module-info flag. 1960 using llvm::hash_code; 1961 using llvm::hash_value; 1962 using llvm::hash_combine; 1963 1964 // Start the signature with the compiler version. 1965 // FIXME: We'd rather use something more cryptographically sound than 1966 // CityHash, but this will do for now. 1967 hash_code code = hash_value(getClangFullRepositoryVersion()); 1968 1969 // Extend the signature with the language options 1970 #define LANGOPT(Name, Bits, Default, Description) \ 1971 code = hash_combine(code, LangOpts->Name); 1972 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1973 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 1974 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1975 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1976 #include "clang/Basic/LangOptions.def" 1977 1978 for (StringRef Feature : LangOpts->ModuleFeatures) 1979 code = hash_combine(code, Feature); 1980 1981 // Extend the signature with the target options. 1982 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 1983 TargetOpts->ABI); 1984 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 1985 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 1986 1987 // Extend the signature with preprocessor options. 1988 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 1989 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 1990 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 1991 1992 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 1993 I = getPreprocessorOpts().Macros.begin(), 1994 IEnd = getPreprocessorOpts().Macros.end(); 1995 I != IEnd; ++I) { 1996 // If we're supposed to ignore this macro for the purposes of modules, 1997 // don't put it into the hash. 1998 if (!hsOpts.ModulesIgnoreMacros.empty()) { 1999 // Check whether we're ignoring this macro. 2000 StringRef MacroDef = I->first; 2001 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 2002 continue; 2003 } 2004 2005 code = hash_combine(code, I->first, I->second); 2006 } 2007 2008 // Extend the signature with the sysroot. 2009 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 2010 hsOpts.UseStandardSystemIncludes, 2011 hsOpts.UseStandardCXXIncludes, 2012 hsOpts.UseLibcxx); 2013 code = hash_combine(code, hsOpts.ResourceDir); 2014 2015 // Extend the signature with the user build path. 2016 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2017 2018 // Darwin-specific hack: if we have a sysroot, use the contents and 2019 // modification time of 2020 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2021 // as part of the module hash. 2022 if (!hsOpts.Sysroot.empty()) { 2023 SmallString<128> systemVersionFile; 2024 systemVersionFile += hsOpts.Sysroot; 2025 llvm::sys::path::append(systemVersionFile, "System"); 2026 llvm::sys::path::append(systemVersionFile, "Library"); 2027 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2028 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2029 2030 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2031 llvm::MemoryBuffer::getFile(systemVersionFile); 2032 if (buffer) { 2033 code = hash_combine(code, buffer.get()->getBuffer()); 2034 2035 struct stat statBuf; 2036 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2037 code = hash_combine(code, statBuf.st_mtime); 2038 } 2039 } 2040 2041 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2042 } 2043 2044 namespace clang { 2045 2046 template<typename IntTy> 2047 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2048 IntTy Default, 2049 DiagnosticsEngine *Diags) { 2050 IntTy Res = Default; 2051 if (Arg *A = Args.getLastArg(Id)) { 2052 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2053 if (Diags) 2054 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2055 << A->getValue(); 2056 } 2057 } 2058 return Res; 2059 } 2060 2061 2062 // Declared in clang/Frontend/Utils.h. 2063 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2064 DiagnosticsEngine *Diags) { 2065 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2066 } 2067 2068 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2069 uint64_t Default, 2070 DiagnosticsEngine *Diags) { 2071 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2072 } 2073 2074 void BuryPointer(const void *Ptr) { 2075 // This function may be called only a small fixed amount of times per each 2076 // invocation, otherwise we do actually have a leak which we want to report. 2077 // If this function is called more than kGraveYardMaxSize times, the pointers 2078 // will not be properly buried and a leak detector will report a leak, which 2079 // is what we want in such case. 2080 static const size_t kGraveYardMaxSize = 16; 2081 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2082 static std::atomic<unsigned> GraveYardSize; 2083 unsigned Idx = GraveYardSize++; 2084 if (Idx >= kGraveYardMaxSize) 2085 return; 2086 GraveYard[Idx] = Ptr; 2087 } 2088 2089 IntrusiveRefCntPtr<vfs::FileSystem> 2090 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2091 DiagnosticsEngine &Diags) { 2092 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2093 return vfs::getRealFileSystem(); 2094 2095 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2096 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2097 // earlier vfs files are on the bottom 2098 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2099 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2100 llvm::MemoryBuffer::getFile(File); 2101 if (!Buffer) { 2102 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2103 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2104 } 2105 2106 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2107 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2108 if (!FS.get()) { 2109 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2110 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2111 } 2112 Overlay->pushOverlay(FS); 2113 } 2114 return Overlay; 2115 } 2116 } // end namespace clang 2117