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 #if !defined(_LIBCPP_HAS_NO_THREADS) && defined(__minix) 39 #include <atomic> 40 #endif // !defined(_LIBCPP_HAS_NO_THREADS) && defined(__minix) 41 #include <memory> 42 #include <sys/stat.h> 43 #include <system_error> 44 using namespace clang; 45 46 //===----------------------------------------------------------------------===// 47 // Initialization. 48 //===----------------------------------------------------------------------===// 49 50 CompilerInvocationBase::CompilerInvocationBase() 51 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 52 DiagnosticOpts(new DiagnosticOptions()), 53 HeaderSearchOpts(new HeaderSearchOptions()), 54 PreprocessorOpts(new PreprocessorOptions()) {} 55 56 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 57 : RefCountedBase<CompilerInvocation>(), 58 LangOpts(new LangOptions(*X.getLangOpts())), 59 TargetOpts(new TargetOptions(X.getTargetOpts())), 60 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 61 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 62 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 63 64 CompilerInvocationBase::~CompilerInvocationBase() {} 65 66 //===----------------------------------------------------------------------===// 67 // Deserialization (from args) 68 //===----------------------------------------------------------------------===// 69 70 using namespace clang::driver; 71 using namespace clang::driver::options; 72 using namespace llvm::opt; 73 74 // 75 76 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 77 DiagnosticsEngine &Diags) { 78 unsigned DefaultOpt = 0; 79 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 80 DefaultOpt = 2; 81 82 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 83 if (A->getOption().matches(options::OPT_O0)) 84 return 0; 85 86 if (A->getOption().matches(options::OPT_Ofast)) 87 return 3; 88 89 assert (A->getOption().matches(options::OPT_O)); 90 91 StringRef S(A->getValue()); 92 if (S == "s" || S == "z" || S.empty()) 93 return 2; 94 95 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 96 } 97 98 return DefaultOpt; 99 } 100 101 static unsigned getOptimizationLevelSize(ArgList &Args) { 102 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 103 if (A->getOption().matches(options::OPT_O)) { 104 switch (A->getValue()[0]) { 105 default: 106 return 0; 107 case 's': 108 return 1; 109 case 'z': 110 return 2; 111 } 112 } 113 } 114 return 0; 115 } 116 117 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 118 OptSpecifier GroupWithValue, 119 std::vector<std::string> &Diagnostics) { 120 for (Arg *A : Args.filtered(Group)) { 121 if (A->getOption().getKind() == Option::FlagClass) { 122 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 123 // its name (minus the "W" or "R" at the beginning) to the warning list. 124 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 125 } else if (A->getOption().matches(GroupWithValue)) { 126 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 127 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 128 } else { 129 // Otherwise, add its value (for OPT_W_Joined and similar). 130 for (const char *Arg : A->getValues()) 131 Diagnostics.push_back(Arg); 132 } 133 } 134 } 135 136 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 137 DiagnosticsEngine &Diags) { 138 using namespace options; 139 bool Success = true; 140 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 141 StringRef Name = A->getValue(); 142 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 143 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 144 .Case(CMDFLAG, NAME##Model) 145 #include "clang/StaticAnalyzer/Core/Analyses.def" 146 .Default(NumStores); 147 if (Value == NumStores) { 148 Diags.Report(diag::err_drv_invalid_value) 149 << A->getAsString(Args) << Name; 150 Success = false; 151 } else { 152 Opts.AnalysisStoreOpt = Value; 153 } 154 } 155 156 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 157 StringRef Name = A->getValue(); 158 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 159 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 160 .Case(CMDFLAG, NAME##Model) 161 #include "clang/StaticAnalyzer/Core/Analyses.def" 162 .Default(NumConstraints); 163 if (Value == NumConstraints) { 164 Diags.Report(diag::err_drv_invalid_value) 165 << A->getAsString(Args) << Name; 166 Success = false; 167 } else { 168 Opts.AnalysisConstraintsOpt = Value; 169 } 170 } 171 172 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 173 StringRef Name = A->getValue(); 174 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 175 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 176 .Case(CMDFLAG, PD_##NAME) 177 #include "clang/StaticAnalyzer/Core/Analyses.def" 178 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 179 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 180 Diags.Report(diag::err_drv_invalid_value) 181 << A->getAsString(Args) << Name; 182 Success = false; 183 } else { 184 Opts.AnalysisDiagOpt = Value; 185 } 186 } 187 188 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 189 StringRef Name = A->getValue(); 190 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 191 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 192 .Case(CMDFLAG, NAME) 193 #include "clang/StaticAnalyzer/Core/Analyses.def" 194 .Default(NumPurgeModes); 195 if (Value == NumPurgeModes) { 196 Diags.Report(diag::err_drv_invalid_value) 197 << A->getAsString(Args) << Name; 198 Success = false; 199 } else { 200 Opts.AnalysisPurgeOpt = Value; 201 } 202 } 203 204 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 205 StringRef Name = A->getValue(); 206 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 207 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 208 .Case(CMDFLAG, NAME) 209 #include "clang/StaticAnalyzer/Core/Analyses.def" 210 .Default(NumInliningModes); 211 if (Value == NumInliningModes) { 212 Diags.Report(diag::err_drv_invalid_value) 213 << A->getAsString(Args) << Name; 214 Success = false; 215 } else { 216 Opts.InliningMode = Value; 217 } 218 } 219 220 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 221 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 222 223 Opts.visualizeExplodedGraphWithGraphViz = 224 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 225 Opts.visualizeExplodedGraphWithUbiGraph = 226 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 227 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 228 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 229 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 230 Opts.AnalyzeNestedBlocks = 231 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 232 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 233 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 234 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 235 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 236 Opts.maxBlockVisitOnPath = 237 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 238 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 239 Opts.InlineMaxStackDepth = 240 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 241 Opts.InlineMaxStackDepth, Diags); 242 243 Opts.CheckersControlList.clear(); 244 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 245 OPT_analyzer_disable_checker), 246 ie = Args.filtered_end(); it != ie; ++it) { 247 const Arg *A = *it; 248 A->claim(); 249 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 250 // We can have a list of comma separated checker names, e.g: 251 // '-analyzer-checker=cocoa,unix' 252 StringRef checkerList = A->getValue(); 253 SmallVector<StringRef, 4> checkers; 254 checkerList.split(checkers, ","); 255 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 256 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 257 } 258 259 // Go through the analyzer configuration options. 260 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 261 ie = Args.filtered_end(); it != ie; ++it) { 262 const Arg *A = *it; 263 A->claim(); 264 // We can have a list of comma separated config names, e.g: 265 // '-analyzer-config key1=val1,key2=val2' 266 StringRef configList = A->getValue(); 267 SmallVector<StringRef, 4> configVals; 268 configList.split(configVals, ","); 269 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 270 StringRef key, val; 271 std::tie(key, val) = configVals[i].split("="); 272 if (val.empty()) { 273 Diags.Report(SourceLocation(), 274 diag::err_analyzer_config_no_value) << configVals[i]; 275 Success = false; 276 break; 277 } 278 if (val.find('=') != StringRef::npos) { 279 Diags.Report(SourceLocation(), 280 diag::err_analyzer_config_multiple_values) 281 << configVals[i]; 282 Success = false; 283 break; 284 } 285 Opts.Config[key] = val; 286 } 287 } 288 289 return Success; 290 } 291 292 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 293 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 294 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 295 return true; 296 } 297 298 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 299 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 300 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 301 } 302 303 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 304 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 305 StringRef Value = A->getValue(); 306 if (Value == "small" || Value == "kernel" || Value == "medium" || 307 Value == "large") 308 return Value; 309 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 310 } 311 return "default"; 312 } 313 314 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 315 /// It returns a pointer to the newly generated Regex instance. 316 static std::shared_ptr<llvm::Regex> 317 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 318 Arg *RpassArg) { 319 StringRef Val = RpassArg->getValue(); 320 std::string RegexError; 321 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 322 if (!Pattern->isValid(RegexError)) { 323 Diags.Report(diag::err_drv_optimization_remark_pattern) 324 << RegexError << RpassArg->getAsString(Args); 325 Pattern.reset(); 326 } 327 return Pattern; 328 } 329 330 static void parseSanitizerKinds(StringRef FlagName, 331 const std::vector<std::string> &Sanitizers, 332 DiagnosticsEngine &Diags, SanitizerSet &S) { 333 for (const auto &Sanitizer : Sanitizers) { 334 SanitizerKind K = llvm::StringSwitch<SanitizerKind>(Sanitizer) 335 #define SANITIZER(NAME, ID) .Case(NAME, SanitizerKind::ID) 336 #include "clang/Basic/Sanitizers.def" 337 .Default(SanitizerKind::Unknown); 338 if (K == SanitizerKind::Unknown) 339 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 340 else 341 S.set(K, true); 342 } 343 } 344 345 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 346 DiagnosticsEngine &Diags, 347 const TargetOptions &TargetOpts) { 348 using namespace options; 349 bool Success = true; 350 351 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 352 // TODO: This could be done in Driver 353 unsigned MaxOptLevel = 3; 354 if (OptimizationLevel > MaxOptLevel) { 355 // If the optimization level is not supported, fall back on the default 356 // optimization 357 Diags.Report(diag::warn_drv_optimization_value) 358 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 359 OptimizationLevel = MaxOptLevel; 360 } 361 Opts.OptimizationLevel = OptimizationLevel; 362 363 // We must always run at least the always inlining pass. 364 Opts.setInlining( 365 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 366 : CodeGenOptions::OnlyAlwaysInlining); 367 // -fno-inline-functions overrides OptimizationLevel > 1. 368 Opts.NoInline = Args.hasArg(OPT_fno_inline); 369 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 370 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 371 372 if (Args.hasArg(OPT_gline_tables_only)) { 373 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 374 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) || 375 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) { 376 bool Default = false; 377 // Until dtrace (via CTF) and LLDB can deal with distributed debug info, 378 // Darwin and FreeBSD default to standalone/full debug info. 379 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() || 380 llvm::Triple(TargetOpts.Triple).isOSFreeBSD()) 381 Default = true; 382 383 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default)) 384 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 385 else 386 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 387 } 388 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 389 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 390 if (Args.hasArg(OPT_gdwarf_2)) 391 Opts.DwarfVersion = 2; 392 else if (Args.hasArg(OPT_gdwarf_3)) 393 Opts.DwarfVersion = 3; 394 else if (Args.hasArg(OPT_gdwarf_4)) 395 Opts.DwarfVersion = 4; 396 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo) 397 // Default Dwarf version is 4 if we are generating debug information. 398 Opts.DwarfVersion = 4; 399 400 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 401 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 402 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 403 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 404 OPT_fuse_register_sized_bitfield_access); 405 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 406 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 407 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 408 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 409 Opts.NoCommon = Args.hasArg(OPT_fno_common); 410 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 411 Opts.OptimizeSize = getOptimizationLevelSize(Args); 412 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 413 Args.hasArg(OPT_ffreestanding)); 414 Opts.UnrollLoops = 415 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 416 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 417 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 418 419 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 420 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 421 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 422 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate); 423 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 424 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping); 425 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 426 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 427 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 428 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 429 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 430 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 431 Opts.CodeModel = getCodeModel(Args, Diags); 432 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 433 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 434 Opts.DisableFree = Args.hasArg(OPT_disable_free); 435 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 436 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 437 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 438 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 439 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 440 Args.hasArg(OPT_cl_finite_math_only) || 441 Args.hasArg(OPT_cl_fast_relaxed_math)); 442 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 443 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 444 Args.hasArg(OPT_cl_finite_math_only) || 445 Args.hasArg(OPT_cl_fast_relaxed_math)); 446 Opts.NoSignedZeros = Args.hasArg(OPT_cl_no_signed_zeros); 447 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 448 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 449 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 450 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 451 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 452 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 453 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 454 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 455 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 456 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 457 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 458 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 459 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 460 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 461 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 462 Args.hasArg(OPT_cl_fast_relaxed_math); 463 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 464 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 465 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 466 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 467 Diags.Report(diag::err_drv_invalid_value) 468 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 469 << Opts.ThreadModel; 470 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 471 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 472 473 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 474 OPT_fno_function_sections, false); 475 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 476 OPT_fno_data_sections, false); 477 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 478 479 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 480 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 481 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 482 483 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 484 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 485 486 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 487 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 488 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 489 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 490 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 491 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 492 Opts.CoverageNoFunctionNamesInData = 493 Args.hasArg(OPT_coverage_no_function_names_in_data); 494 if (Args.hasArg(OPT_coverage_version_EQ)) { 495 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 496 if (CoverageVersion.size() != 4) { 497 Diags.Report(diag::err_drv_invalid_value) 498 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 499 << CoverageVersion; 500 } else { 501 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 502 } 503 } 504 } 505 506 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 507 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 508 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 509 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 510 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 511 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 512 Opts.SanitizeCoverage = 513 getLastArgIntValue(Args, OPT_fsanitize_coverage, 0, Diags); 514 Opts.SanitizeMemoryTrackOrigins = 515 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 516 Opts.SanitizeUndefinedTrapOnError = 517 Args.hasArg(OPT_fsanitize_undefined_trap_on_error); 518 Opts.SSPBufferSize = 519 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 520 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 521 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 522 StringRef Val = A->getValue(); 523 unsigned StackAlignment = Opts.StackAlignment; 524 Val.getAsInteger(10, StackAlignment); 525 Opts.StackAlignment = StackAlignment; 526 } 527 528 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 529 StringRef Name = A->getValue(); 530 unsigned Method = llvm::StringSwitch<unsigned>(Name) 531 .Case("legacy", CodeGenOptions::Legacy) 532 .Case("non-legacy", CodeGenOptions::NonLegacy) 533 .Case("mixed", CodeGenOptions::Mixed) 534 .Default(~0U); 535 if (Method == ~0U) { 536 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 537 Success = false; 538 } else { 539 Opts.setObjCDispatchMethod( 540 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 541 } 542 } 543 544 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 545 StringRef Name = A->getValue(); 546 unsigned Model = llvm::StringSwitch<unsigned>(Name) 547 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 548 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 549 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 550 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 551 .Default(~0U); 552 if (Model == ~0U) { 553 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 554 Success = false; 555 } else { 556 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 557 } 558 } 559 560 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 561 StringRef Val = A->getValue(); 562 if (Val == "fast") 563 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 564 else if (Val == "on") 565 Opts.setFPContractMode(CodeGenOptions::FPC_On); 566 else if (Val == "off") 567 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 568 else 569 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 570 } 571 572 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 573 if (A->getOption().matches(OPT_fpcc_struct_return)) { 574 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 575 } else { 576 assert(A->getOption().matches(OPT_freg_struct_return)); 577 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 578 } 579 } 580 581 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 582 bool NeedLocTracking = false; 583 584 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 585 Opts.OptimizationRemarkPattern = 586 GenerateOptimizationRemarkRegex(Diags, Args, A); 587 NeedLocTracking = true; 588 } 589 590 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 591 Opts.OptimizationRemarkMissedPattern = 592 GenerateOptimizationRemarkRegex(Diags, Args, A); 593 NeedLocTracking = true; 594 } 595 596 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 597 Opts.OptimizationRemarkAnalysisPattern = 598 GenerateOptimizationRemarkRegex(Diags, Args, A); 599 NeedLocTracking = true; 600 } 601 602 // If the user requested to use a sample profile for PGO, then the 603 // backend will need to track source location information so the profile 604 // can be incorporated into the IR. 605 if (!Opts.SampleProfileFile.empty()) 606 NeedLocTracking = true; 607 608 // If the user requested a flag that requires source locations available in 609 // the backend, make sure that the backend tracks source location information. 610 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 611 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 612 613 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 614 615 // Parse -fsanitize-recover= arguments. 616 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 617 parseSanitizerKinds("-fsanitize-recover=", 618 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 619 Opts.SanitizeRecover); 620 621 return Success; 622 } 623 624 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 625 ArgList &Args) { 626 using namespace options; 627 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 628 Opts.Targets = Args.getAllArgValues(OPT_MT); 629 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 630 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 631 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 632 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 633 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 634 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 635 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 636 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 637 Opts.ModuleDependencyOutputDir = 638 Args.getLastArgValue(OPT_module_dependency_dir); 639 } 640 641 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 642 DiagnosticsEngine *Diags) { 643 using namespace options; 644 bool Success = true; 645 646 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 647 if (Arg *A = 648 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 649 Opts.DiagnosticSerializationFile = A->getValue(); 650 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 651 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 652 Opts.Pedantic = Args.hasArg(OPT_pedantic); 653 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 654 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 655 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 656 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 657 OPT_fno_show_column, 658 /*Default=*/true); 659 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 660 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 661 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 662 663 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 664 665 // Default behavior is to not to show note include stacks. 666 Opts.ShowNoteIncludeStack = false; 667 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 668 OPT_fno_diagnostics_show_note_include_stack)) 669 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 670 Opts.ShowNoteIncludeStack = true; 671 672 StringRef ShowOverloads = 673 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 674 if (ShowOverloads == "best") 675 Opts.setShowOverloads(Ovl_Best); 676 else if (ShowOverloads == "all") 677 Opts.setShowOverloads(Ovl_All); 678 else { 679 Success = false; 680 if (Diags) 681 Diags->Report(diag::err_drv_invalid_value) 682 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 683 << ShowOverloads; 684 } 685 686 StringRef ShowCategory = 687 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 688 if (ShowCategory == "none") 689 Opts.ShowCategories = 0; 690 else if (ShowCategory == "id") 691 Opts.ShowCategories = 1; 692 else if (ShowCategory == "name") 693 Opts.ShowCategories = 2; 694 else { 695 Success = false; 696 if (Diags) 697 Diags->Report(diag::err_drv_invalid_value) 698 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 699 << ShowCategory; 700 } 701 702 StringRef Format = 703 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 704 if (Format == "clang") 705 Opts.setFormat(DiagnosticOptions::Clang); 706 else if (Format == "msvc") 707 Opts.setFormat(DiagnosticOptions::Msvc); 708 else if (Format == "msvc-fallback") { 709 Opts.setFormat(DiagnosticOptions::Msvc); 710 Opts.CLFallbackMode = true; 711 } else if (Format == "vi") 712 Opts.setFormat(DiagnosticOptions::Vi); 713 else { 714 Success = false; 715 if (Diags) 716 Diags->Report(diag::err_drv_invalid_value) 717 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 718 << Format; 719 } 720 721 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 722 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 723 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 724 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 725 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 726 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 727 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 728 Opts.MacroBacktraceLimit = 729 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 730 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 731 Opts.TemplateBacktraceLimit = getLastArgIntValue( 732 Args, OPT_ftemplate_backtrace_limit, 733 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 734 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 735 Args, OPT_fconstexpr_backtrace_limit, 736 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 737 Opts.SpellCheckingLimit = getLastArgIntValue( 738 Args, OPT_fspell_checking_limit, 739 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 740 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 741 DiagnosticOptions::DefaultTabStop, Diags); 742 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 743 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 744 if (Diags) 745 Diags->Report(diag::warn_ignoring_ftabstop_value) 746 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 747 } 748 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 749 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 750 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 751 752 return Success; 753 } 754 755 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 756 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 757 } 758 759 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 760 DiagnosticsEngine &Diags) { 761 using namespace options; 762 Opts.ProgramAction = frontend::ParseSyntaxOnly; 763 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 764 switch (A->getOption().getID()) { 765 default: 766 llvm_unreachable("Invalid option in group!"); 767 case OPT_ast_list: 768 Opts.ProgramAction = frontend::ASTDeclList; break; 769 case OPT_ast_dump: 770 case OPT_ast_dump_lookups: 771 Opts.ProgramAction = frontend::ASTDump; break; 772 case OPT_ast_print: 773 Opts.ProgramAction = frontend::ASTPrint; break; 774 case OPT_ast_view: 775 Opts.ProgramAction = frontend::ASTView; break; 776 case OPT_dump_raw_tokens: 777 Opts.ProgramAction = frontend::DumpRawTokens; break; 778 case OPT_dump_tokens: 779 Opts.ProgramAction = frontend::DumpTokens; break; 780 case OPT_S: 781 Opts.ProgramAction = frontend::EmitAssembly; break; 782 case OPT_emit_llvm_bc: 783 Opts.ProgramAction = frontend::EmitBC; break; 784 case OPT_emit_html: 785 Opts.ProgramAction = frontend::EmitHTML; break; 786 case OPT_emit_llvm: 787 Opts.ProgramAction = frontend::EmitLLVM; break; 788 case OPT_emit_llvm_only: 789 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 790 case OPT_emit_codegen_only: 791 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 792 case OPT_emit_obj: 793 Opts.ProgramAction = frontend::EmitObj; break; 794 case OPT_fixit_EQ: 795 Opts.FixItSuffix = A->getValue(); 796 // fall-through! 797 case OPT_fixit: 798 Opts.ProgramAction = frontend::FixIt; break; 799 case OPT_emit_module: 800 Opts.ProgramAction = frontend::GenerateModule; break; 801 case OPT_emit_pch: 802 Opts.ProgramAction = frontend::GeneratePCH; break; 803 case OPT_emit_pth: 804 Opts.ProgramAction = frontend::GeneratePTH; break; 805 case OPT_init_only: 806 Opts.ProgramAction = frontend::InitOnly; break; 807 case OPT_fsyntax_only: 808 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 809 case OPT_module_file_info: 810 Opts.ProgramAction = frontend::ModuleFileInfo; break; 811 case OPT_verify_pch: 812 Opts.ProgramAction = frontend::VerifyPCH; break; 813 case OPT_print_decl_contexts: 814 Opts.ProgramAction = frontend::PrintDeclContext; break; 815 case OPT_print_preamble: 816 Opts.ProgramAction = frontend::PrintPreamble; break; 817 case OPT_E: 818 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 819 case OPT_rewrite_macros: 820 Opts.ProgramAction = frontend::RewriteMacros; break; 821 case OPT_rewrite_objc: 822 Opts.ProgramAction = frontend::RewriteObjC; break; 823 case OPT_rewrite_test: 824 Opts.ProgramAction = frontend::RewriteTest; break; 825 case OPT_analyze: 826 Opts.ProgramAction = frontend::RunAnalysis; break; 827 case OPT_migrate: 828 Opts.ProgramAction = frontend::MigrateSource; break; 829 case OPT_Eonly: 830 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 831 } 832 } 833 834 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 835 Opts.Plugins.push_back(A->getValue(0)); 836 Opts.ProgramAction = frontend::PluginAction; 837 Opts.ActionName = A->getValue(); 838 839 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 840 end = Args.filtered_end(); it != end; ++it) { 841 if ((*it)->getValue(0) == Opts.ActionName) 842 Opts.PluginArgs.push_back((*it)->getValue(1)); 843 } 844 } 845 846 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 847 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 848 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 849 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 850 end = Args.filtered_end(); it != end; ++it) { 851 if ((*it)->getValue(0) == Opts.AddPluginActions[i]) 852 Opts.AddPluginArgs[i].push_back((*it)->getValue(1)); 853 } 854 } 855 856 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 857 Opts.CodeCompletionAt = 858 ParsedSourceLocation::FromString(A->getValue()); 859 if (Opts.CodeCompletionAt.FileName.empty()) 860 Diags.Report(diag::err_drv_invalid_value) 861 << A->getAsString(Args) << A->getValue(); 862 } 863 Opts.DisableFree = Args.hasArg(OPT_disable_free); 864 865 Opts.OutputFile = Args.getLastArgValue(OPT_o); 866 Opts.Plugins = Args.getAllArgValues(OPT_load); 867 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 868 Opts.ShowHelp = Args.hasArg(OPT_help); 869 Opts.ShowStats = Args.hasArg(OPT_print_stats); 870 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 871 Opts.ShowVersion = Args.hasArg(OPT_version); 872 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 873 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 874 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 875 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 876 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 877 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 878 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 879 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 880 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 881 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 882 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 883 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 884 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 885 886 Opts.CodeCompleteOpts.IncludeMacros 887 = Args.hasArg(OPT_code_completion_macros); 888 Opts.CodeCompleteOpts.IncludeCodePatterns 889 = Args.hasArg(OPT_code_completion_patterns); 890 Opts.CodeCompleteOpts.IncludeGlobals 891 = !Args.hasArg(OPT_no_code_completion_globals); 892 Opts.CodeCompleteOpts.IncludeBriefComments 893 = Args.hasArg(OPT_code_completion_brief_comments); 894 895 Opts.OverrideRecordLayoutsFile 896 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 897 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 898 OPT_arcmt_modify, 899 OPT_arcmt_migrate)) { 900 switch (A->getOption().getID()) { 901 default: 902 llvm_unreachable("missed a case"); 903 case OPT_arcmt_check: 904 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 905 break; 906 case OPT_arcmt_modify: 907 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 908 break; 909 case OPT_arcmt_migrate: 910 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 911 break; 912 } 913 } 914 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 915 Opts.ARCMTMigrateReportOut 916 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 917 Opts.ARCMTMigrateEmitARCErrors 918 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 919 920 if (Args.hasArg(OPT_objcmt_migrate_literals)) 921 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 922 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 923 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 924 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 925 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 926 if (Args.hasArg(OPT_objcmt_migrate_property)) 927 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 928 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 929 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 930 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 931 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 932 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 933 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 934 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 935 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 936 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 937 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 938 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 939 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 940 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 941 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 942 if (Args.hasArg(OPT_objcmt_atomic_property)) 943 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 944 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 945 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 946 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 947 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 948 if (Args.hasArg(OPT_objcmt_migrate_all)) 949 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 950 951 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 952 953 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 954 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 955 Diags.Report(diag::err_drv_argument_not_allowed_with) 956 << "ARC migration" << "ObjC migration"; 957 } 958 959 InputKind DashX = IK_None; 960 if (const Arg *A = Args.getLastArg(OPT_x)) { 961 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 962 .Case("c", IK_C) 963 .Case("cl", IK_OpenCL) 964 .Case("cuda", IK_CUDA) 965 .Case("c++", IK_CXX) 966 .Case("objective-c", IK_ObjC) 967 .Case("objective-c++", IK_ObjCXX) 968 .Case("cpp-output", IK_PreprocessedC) 969 .Case("assembler-with-cpp", IK_Asm) 970 .Case("c++-cpp-output", IK_PreprocessedCXX) 971 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 972 .Case("objc-cpp-output", IK_PreprocessedObjC) 973 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 974 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 975 .Case("c-header", IK_C) 976 .Case("cl-header", IK_OpenCL) 977 .Case("objective-c-header", IK_ObjC) 978 .Case("c++-header", IK_CXX) 979 .Case("objective-c++-header", IK_ObjCXX) 980 .Cases("ast", "pcm", IK_AST) 981 .Case("ir", IK_LLVM_IR) 982 .Default(IK_None); 983 if (DashX == IK_None) 984 Diags.Report(diag::err_drv_invalid_value) 985 << A->getAsString(Args) << A->getValue(); 986 } 987 988 // '-' is the default input if none is given. 989 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 990 Opts.Inputs.clear(); 991 if (Inputs.empty()) 992 Inputs.push_back("-"); 993 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 994 InputKind IK = DashX; 995 if (IK == IK_None) { 996 IK = FrontendOptions::getInputKindForExtension( 997 StringRef(Inputs[i]).rsplit('.').second); 998 // FIXME: Remove this hack. 999 if (i == 0) 1000 DashX = IK; 1001 } 1002 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1003 } 1004 1005 return DashX; 1006 } 1007 1008 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1009 void *MainAddr) { 1010 std::string ClangExecutable = 1011 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1012 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1013 1014 // Compute the path to the resource directory. 1015 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1016 SmallString<128> P(Dir); 1017 if (ClangResourceDir != "") { 1018 llvm::sys::path::append(P, ClangResourceDir); 1019 } else { 1020 StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX); 1021 llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang", 1022 CLANG_VERSION_STRING); 1023 } 1024 1025 return P.str(); 1026 } 1027 1028 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1029 using namespace options; 1030 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1031 Opts.Verbose = Args.hasArg(OPT_v); 1032 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1033 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1034 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1035 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1036 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1037 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1038 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1039 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1040 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1041 // -fmodules implies -fmodule-maps 1042 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules); 1043 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1044 Opts.ModuleCachePruneInterval = 1045 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1046 Opts.ModuleCachePruneAfter = 1047 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1048 Opts.ModulesValidateOncePerBuildSession = 1049 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1050 Opts.BuildSessionTimestamp = 1051 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1052 Opts.ModulesValidateSystemHeaders = 1053 Args.hasArg(OPT_fmodules_validate_system_headers); 1054 1055 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro), 1056 ie = Args.filtered_end(); 1057 it != ie; ++it) { 1058 StringRef MacroDef = (*it)->getValue(); 1059 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1060 } 1061 1062 // Add -I..., -F..., and -index-header-map options in order. 1063 bool IsIndexHeaderMap = false; 1064 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1065 OPT_index_header_map), 1066 ie = Args.filtered_end(); it != ie; ++it) { 1067 if ((*it)->getOption().matches(OPT_index_header_map)) { 1068 // -index-header-map applies to the next -I or -F. 1069 IsIndexHeaderMap = true; 1070 continue; 1071 } 1072 1073 frontend::IncludeDirGroup Group 1074 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1075 1076 Opts.AddPath((*it)->getValue(), Group, 1077 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true); 1078 IsIndexHeaderMap = false; 1079 } 1080 1081 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1082 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1083 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1084 OPT_iwithprefixbefore), 1085 ie = Args.filtered_end(); it != ie; ++it) { 1086 const Arg *A = *it; 1087 if (A->getOption().matches(OPT_iprefix)) 1088 Prefix = A->getValue(); 1089 else if (A->getOption().matches(OPT_iwithprefix)) 1090 Opts.AddPath(Prefix.str() + A->getValue(), 1091 frontend::After, false, true); 1092 else 1093 Opts.AddPath(Prefix.str() + A->getValue(), 1094 frontend::Angled, false, true); 1095 } 1096 1097 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1098 ie = Args.filtered_end(); it != ie; ++it) 1099 Opts.AddPath((*it)->getValue(), frontend::After, false, true); 1100 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1101 ie = Args.filtered_end(); it != ie; ++it) 1102 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true); 1103 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1104 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1105 Opts.AddPath((*it)->getValue(), frontend::System, false, 1106 !(*it)->getOption().matches(OPT_iwithsysroot)); 1107 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1108 ie = Args.filtered_end(); it != ie; ++it) 1109 Opts.AddPath((*it)->getValue(), frontend::System, true, true); 1110 1111 // Add the paths for the various language specific isystem flags. 1112 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1113 ie = Args.filtered_end(); it != ie; ++it) 1114 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true); 1115 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1116 ie = Args.filtered_end(); it != ie; ++it) 1117 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true); 1118 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1119 ie = Args.filtered_end(); it != ie; ++it) 1120 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true); 1121 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1122 ie = Args.filtered_end(); it != ie; ++it) 1123 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true); 1124 1125 // Add the internal paths from a driver that detects standard include paths. 1126 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1127 OPT_internal_externc_isystem), 1128 E = Args.filtered_end(); 1129 I != E; ++I) { 1130 frontend::IncludeDirGroup Group = frontend::System; 1131 if ((*I)->getOption().matches(OPT_internal_externc_isystem)) 1132 Group = frontend::ExternCSystem; 1133 Opts.AddPath((*I)->getValue(), Group, false, true); 1134 } 1135 1136 // Add the path prefixes which are implicitly treated as being system headers. 1137 for (arg_iterator I = Args.filtered_begin(OPT_system_header_prefix, 1138 OPT_no_system_header_prefix), 1139 E = Args.filtered_end(); 1140 I != E; ++I) 1141 Opts.AddSystemHeaderPrefix( 1142 (*I)->getValue(), (*I)->getOption().matches(OPT_system_header_prefix)); 1143 1144 for (arg_iterator I = Args.filtered_begin(OPT_ivfsoverlay), 1145 E = Args.filtered_end(); I != E; ++I) 1146 Opts.AddVFSOverlayFile((*I)->getValue()); 1147 } 1148 1149 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1150 LangStandard::Kind LangStd) { 1151 // Set some properties which depend solely on the input kind; it would be nice 1152 // to move these to the language standard, and have the driver resolve the 1153 // input kind + language standard. 1154 if (IK == IK_Asm) { 1155 Opts.AsmPreprocessor = 1; 1156 } else if (IK == IK_ObjC || 1157 IK == IK_ObjCXX || 1158 IK == IK_PreprocessedObjC || 1159 IK == IK_PreprocessedObjCXX) { 1160 Opts.ObjC1 = Opts.ObjC2 = 1; 1161 } 1162 1163 if (LangStd == LangStandard::lang_unspecified) { 1164 // Based on the base language, pick one. 1165 switch (IK) { 1166 case IK_None: 1167 case IK_AST: 1168 case IK_LLVM_IR: 1169 llvm_unreachable("Invalid input kind!"); 1170 case IK_OpenCL: 1171 LangStd = LangStandard::lang_opencl; 1172 break; 1173 case IK_CUDA: 1174 LangStd = LangStandard::lang_cuda; 1175 break; 1176 case IK_Asm: 1177 case IK_C: 1178 case IK_PreprocessedC: 1179 case IK_ObjC: 1180 case IK_PreprocessedObjC: 1181 LangStd = LangStandard::lang_gnu11; 1182 break; 1183 case IK_CXX: 1184 case IK_PreprocessedCXX: 1185 case IK_ObjCXX: 1186 case IK_PreprocessedObjCXX: 1187 LangStd = LangStandard::lang_gnucxx98; 1188 break; 1189 } 1190 } 1191 1192 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1193 Opts.LineComment = Std.hasLineComments(); 1194 Opts.C99 = Std.isC99(); 1195 Opts.C11 = Std.isC11(); 1196 Opts.CPlusPlus = Std.isCPlusPlus(); 1197 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1198 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1199 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1200 Opts.Digraphs = Std.hasDigraphs(); 1201 Opts.GNUMode = Std.isGNUMode(); 1202 Opts.GNUInline = !Std.isC99(); 1203 Opts.HexFloats = Std.hasHexFloats(); 1204 Opts.ImplicitInt = Std.hasImplicitInt(); 1205 1206 // Set OpenCL Version. 1207 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1208 if (LangStd == LangStandard::lang_opencl) 1209 Opts.OpenCLVersion = 100; 1210 else if (LangStd == LangStandard::lang_opencl11) 1211 Opts.OpenCLVersion = 110; 1212 else if (LangStd == LangStandard::lang_opencl12) 1213 Opts.OpenCLVersion = 120; 1214 else if (LangStd == LangStandard::lang_opencl20) 1215 Opts.OpenCLVersion = 200; 1216 1217 // OpenCL has some additional defaults. 1218 if (Opts.OpenCL) { 1219 Opts.AltiVec = 0; 1220 Opts.CXXOperatorNames = 1; 1221 Opts.LaxVectorConversions = 0; 1222 Opts.DefaultFPContract = 1; 1223 Opts.NativeHalfType = 1; 1224 } 1225 1226 Opts.CUDA = LangStd == LangStandard::lang_cuda || IK == IK_CUDA; 1227 1228 // OpenCL and C++ both have bool, true, false keywords. 1229 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1230 1231 // OpenCL has half keyword 1232 Opts.Half = Opts.OpenCL; 1233 1234 // C++ has wchar_t keyword. 1235 Opts.WChar = Opts.CPlusPlus; 1236 1237 Opts.GNUKeywords = Opts.GNUMode; 1238 Opts.CXXOperatorNames = Opts.CPlusPlus; 1239 1240 Opts.DollarIdents = !Opts.AsmPreprocessor; 1241 1242 // C++14 onwards has sized global deallocation functions. 1243 Opts.SizedDeallocation = Opts.CPlusPlus14; 1244 } 1245 1246 /// Attempt to parse a visibility value out of the given argument. 1247 static Visibility parseVisibility(Arg *arg, ArgList &args, 1248 DiagnosticsEngine &diags) { 1249 StringRef value = arg->getValue(); 1250 if (value == "default") { 1251 return DefaultVisibility; 1252 } else if (value == "hidden") { 1253 return HiddenVisibility; 1254 } else if (value == "protected") { 1255 // FIXME: diagnose if target does not support protected visibility 1256 return ProtectedVisibility; 1257 } 1258 1259 diags.Report(diag::err_drv_invalid_value) 1260 << arg->getAsString(args) << value; 1261 return DefaultVisibility; 1262 } 1263 1264 static unsigned parseMSCVersion(ArgList &Args, DiagnosticsEngine &Diags) { 1265 auto Arg = Args.getLastArg(OPT_fms_compatibility_version); 1266 if (!Arg) 1267 return 0; 1268 1269 // The MSC versioning scheme involves four versioning components: 1270 // - Major 1271 // - Minor 1272 // - Build 1273 // - Patch 1274 // 1275 // We accept either the old style (_MSC_VER) value, or a _MSC_FULL_VER value. 1276 // Additionally, the value may be provided in the form of a more readable 1277 // MM.mm.bbbbb.pp version. 1278 // 1279 // Unfortunately, due to the bit-width limitations, we cannot currently encode 1280 // the value for the patch level. 1281 1282 unsigned VC[4] = {0}; 1283 StringRef Value = Arg->getValue(); 1284 SmallVector<StringRef, 4> Components; 1285 1286 Value.split(Components, ".", llvm::array_lengthof(VC)); 1287 for (unsigned CI = 0, 1288 CE = std::min(Components.size(), llvm::array_lengthof(VC)); 1289 CI < CE; ++CI) { 1290 if (Components[CI].getAsInteger(10, VC[CI])) { 1291 Diags.Report(diag::err_drv_invalid_value) 1292 << Arg->getAsString(Args) << Value; 1293 return 0; 1294 } 1295 } 1296 1297 // FIXME we cannot encode the patch level 1298 return VC[0] * 10000000 + VC[1] * 100000 + VC[2]; 1299 } 1300 1301 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1302 DiagnosticsEngine &Diags) { 1303 // FIXME: Cleanup per-file based stuff. 1304 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1305 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1306 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1307 #define LANGSTANDARD(id, name, desc, features) \ 1308 .Case(name, LangStandard::lang_##id) 1309 #include "clang/Frontend/LangStandards.def" 1310 .Default(LangStandard::lang_unspecified); 1311 if (LangStd == LangStandard::lang_unspecified) 1312 Diags.Report(diag::err_drv_invalid_value) 1313 << A->getAsString(Args) << A->getValue(); 1314 else { 1315 // Valid standard, check to make sure language and standard are 1316 // compatible. 1317 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1318 switch (IK) { 1319 case IK_C: 1320 case IK_ObjC: 1321 case IK_PreprocessedC: 1322 case IK_PreprocessedObjC: 1323 if (!(Std.isC89() || Std.isC99())) 1324 Diags.Report(diag::err_drv_argument_not_allowed_with) 1325 << A->getAsString(Args) << "C/ObjC"; 1326 break; 1327 case IK_CXX: 1328 case IK_ObjCXX: 1329 case IK_PreprocessedCXX: 1330 case IK_PreprocessedObjCXX: 1331 if (!Std.isCPlusPlus()) 1332 Diags.Report(diag::err_drv_argument_not_allowed_with) 1333 << A->getAsString(Args) << "C++/ObjC++"; 1334 break; 1335 case IK_OpenCL: 1336 if (!Std.isC99()) 1337 Diags.Report(diag::err_drv_argument_not_allowed_with) 1338 << A->getAsString(Args) << "OpenCL"; 1339 break; 1340 case IK_CUDA: 1341 if (!Std.isCPlusPlus()) 1342 Diags.Report(diag::err_drv_argument_not_allowed_with) 1343 << A->getAsString(Args) << "CUDA"; 1344 break; 1345 default: 1346 break; 1347 } 1348 } 1349 } 1350 1351 // -cl-std only applies for OpenCL language standards. 1352 // Override the -std option in this case. 1353 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1354 LangStandard::Kind OpenCLLangStd 1355 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1356 .Case("CL", LangStandard::lang_opencl) 1357 .Case("CL1.1", LangStandard::lang_opencl11) 1358 .Case("CL1.2", LangStandard::lang_opencl12) 1359 .Case("CL2.0", LangStandard::lang_opencl20) 1360 .Default(LangStandard::lang_unspecified); 1361 1362 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1363 Diags.Report(diag::err_drv_invalid_value) 1364 << A->getAsString(Args) << A->getValue(); 1365 } 1366 else 1367 LangStd = OpenCLLangStd; 1368 } 1369 1370 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1371 1372 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1373 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1374 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1375 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1376 // name, as it doesn't seem a useful distinction. 1377 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1378 Opts.GNUKeywords); 1379 1380 if (Args.hasArg(OPT_fno_operator_names)) 1381 Opts.CXXOperatorNames = 0; 1382 1383 if (Args.hasArg(OPT_fcuda_is_device)) 1384 Opts.CUDAIsDevice = 1; 1385 1386 if (Opts.ObjC1) { 1387 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1388 StringRef value = arg->getValue(); 1389 if (Opts.ObjCRuntime.tryParse(value)) 1390 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1391 } 1392 1393 if (Args.hasArg(OPT_fobjc_gc_only)) 1394 Opts.setGC(LangOptions::GCOnly); 1395 else if (Args.hasArg(OPT_fobjc_gc)) 1396 Opts.setGC(LangOptions::HybridGC); 1397 else if (Args.hasArg(OPT_fobjc_arc)) { 1398 Opts.ObjCAutoRefCount = 1; 1399 if (!Opts.ObjCRuntime.allowsARC()) 1400 Diags.Report(diag::err_arc_unsupported_on_runtime); 1401 1402 // Only set ObjCARCWeak if ARC is enabled. 1403 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1404 Opts.ObjCARCWeak = 1; 1405 else 1406 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1407 } 1408 1409 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1410 Opts.ObjCInferRelatedResultType = 0; 1411 1412 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1413 Opts.ObjCSubscriptingLegacyRuntime = 1414 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1415 } 1416 1417 if (Args.hasArg(OPT_fgnu89_inline)) 1418 Opts.GNUInline = 1; 1419 1420 if (Args.hasArg(OPT_fapple_kext)) { 1421 if (!Opts.CPlusPlus) 1422 Diags.Report(diag::warn_c_kext); 1423 else 1424 Opts.AppleKext = 1; 1425 } 1426 1427 if (Args.hasArg(OPT_print_ivar_layout)) 1428 Opts.ObjCGCBitmapPrint = 1; 1429 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1430 Opts.NoConstantCFStrings = 1; 1431 1432 if (Args.hasArg(OPT_faltivec)) 1433 Opts.AltiVec = 1; 1434 1435 if (Args.hasArg(OPT_pthread)) 1436 Opts.POSIXThreads = 1; 1437 1438 // The value-visibility mode defaults to "default". 1439 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1440 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1441 } else { 1442 Opts.setValueVisibilityMode(DefaultVisibility); 1443 } 1444 1445 // The type-visibility mode defaults to the value-visibility mode. 1446 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1447 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1448 } else { 1449 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1450 } 1451 1452 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1453 Opts.InlineVisibilityHidden = 1; 1454 1455 if (Args.hasArg(OPT_ftrapv)) { 1456 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1457 // Set the handler, if one is specified. 1458 Opts.OverflowHandler = 1459 Args.getLastArgValue(OPT_ftrapv_handler); 1460 } 1461 else if (Args.hasArg(OPT_fwrapv)) 1462 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1463 1464 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1465 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1466 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1467 Opts.MSCompatibilityVersion = parseMSCVersion(Args, Diags); 1468 1469 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1470 // is specified, or -std is set to a conforming mode. 1471 // Trigraphs are disabled by default in c++1z onwards. 1472 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1473 Opts.Trigraphs = 1474 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1475 1476 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1477 OPT_fno_dollars_in_identifiers, 1478 Opts.DollarIdents); 1479 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1480 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1481 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1482 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1483 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1484 Opts.ConstStrings); 1485 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1486 Opts.LaxVectorConversions = 0; 1487 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1488 Opts.ThreadsafeStatics = 0; 1489 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1490 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1491 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1492 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1493 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1494 1495 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1496 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1497 Opts.Blocks = Args.hasArg(OPT_fblocks); 1498 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1499 Opts.Modules = Args.hasArg(OPT_fmodules); 1500 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1501 Opts.ModulesDeclUse = 1502 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1503 Opts.ModulesSearchAll = Opts.Modules && 1504 !Args.hasArg(OPT_fno_modules_search_all) && 1505 Args.hasArg(OPT_fmodules_search_all); 1506 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1507 Opts.ModulesImplicitMaps = Args.hasFlag(OPT_fmodules_implicit_maps, 1508 OPT_fno_modules_implicit_maps, true); 1509 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1510 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1511 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1512 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1513 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1514 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1515 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1516 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1517 Opts.SizedDeallocation |= Args.hasArg(OPT_fsized_deallocation); 1518 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1519 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1520 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1521 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1522 Opts.InstantiationDepth = 1523 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1524 Opts.ArrowDepth = 1525 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1526 Opts.ConstexprCallDepth = 1527 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1528 Opts.ConstexprStepLimit = 1529 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1530 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1531 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1532 Opts.NumLargeByValueCopy = 1533 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1534 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1535 Opts.ObjCConstantStringClass = 1536 Args.getLastArgValue(OPT_fconstant_string_class); 1537 Opts.ObjCDefaultSynthProperties = 1538 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1539 Opts.EncodeExtendedBlockSig = 1540 Args.hasArg(OPT_fencode_extended_block_signature); 1541 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1542 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1543 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1544 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1545 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1546 Opts.Static = Args.hasArg(OPT_static_define); 1547 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1548 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1549 || Args.hasArg(OPT_fdump_record_layouts); 1550 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1551 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1552 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1553 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1554 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1555 Opts.MRTD = Args.hasArg(OPT_mrtd); 1556 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1557 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1558 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1559 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1560 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1561 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1562 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1563 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1564 Opts.ImplementationOfModule = 1565 Args.getLastArgValue(OPT_fmodule_implementation_of); 1566 Opts.NativeHalfType = Opts.NativeHalfType; 1567 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1568 1569 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1570 Opts.CurrentModule != Opts.ImplementationOfModule) { 1571 Diags.Report(diag::err_conflicting_module_names) 1572 << Opts.CurrentModule << Opts.ImplementationOfModule; 1573 } 1574 1575 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1576 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1577 .Case("target", LangOptions::ASMM_Target) 1578 .Case("no", LangOptions::ASMM_Off) 1579 .Case("yes", LangOptions::ASMM_On) 1580 .Default(255)) { 1581 default: 1582 Diags.Report(diag::err_drv_invalid_value) 1583 << "-faddress-space-map-mangling=" << A->getValue(); 1584 break; 1585 case LangOptions::ASMM_Target: 1586 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1587 break; 1588 case LangOptions::ASMM_On: 1589 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1590 break; 1591 case LangOptions::ASMM_Off: 1592 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1593 break; 1594 } 1595 } 1596 1597 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1598 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1599 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1600 A->getValue()) 1601 .Case("single", 1602 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1603 .Case("multiple", 1604 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1605 .Case("virtual", 1606 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1607 .Default(LangOptions::PPTMK_BestCase); 1608 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1609 Diags.Report(diag::err_drv_invalid_value) 1610 << "-fms-memptr-rep=" << A->getValue(); 1611 1612 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1613 } 1614 1615 // Check if -fopenmp= is specified. 1616 if (const Arg *A = Args.getLastArg(options::OPT_fopenmp_EQ)) { 1617 Opts.OpenMP = llvm::StringSwitch<bool>(A->getValue()) 1618 .Case("libiomp5", true) 1619 .Default(false); 1620 } 1621 1622 // Record whether the __DEPRECATED define was requested. 1623 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1624 OPT_fno_deprecated_macro, 1625 Opts.Deprecated); 1626 1627 // FIXME: Eliminate this dependency. 1628 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1629 OptSize = getOptimizationLevelSize(Args); 1630 Opts.Optimize = Opt != 0; 1631 Opts.OptimizeSize = OptSize != 0; 1632 1633 // This is the __NO_INLINE__ define, which just depends on things like the 1634 // optimization level and -fno-inline, not actually whether the backend has 1635 // inlining enabled. 1636 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1637 1638 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1639 Args.hasArg(OPT_cl_fast_relaxed_math); 1640 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1641 Args.hasArg(OPT_cl_finite_math_only) || 1642 Args.hasArg(OPT_cl_fast_relaxed_math); 1643 1644 Opts.RetainCommentsFromSystemHeaders = 1645 Args.hasArg(OPT_fretain_comments_from_system_headers); 1646 1647 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1648 switch (SSP) { 1649 default: 1650 Diags.Report(diag::err_drv_invalid_value) 1651 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1652 break; 1653 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1654 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1655 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1656 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1657 } 1658 1659 // Parse -fsanitize= arguments. 1660 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 1661 Diags, Opts.Sanitize); 1662 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1663 Opts.SanitizeAddressFieldPadding = 1664 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1665 Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist); 1666 } 1667 1668 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1669 FileManager &FileMgr, 1670 DiagnosticsEngine &Diags) { 1671 using namespace options; 1672 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1673 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1674 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1675 Opts.TokenCache = A->getValue(); 1676 else 1677 Opts.TokenCache = Opts.ImplicitPTHInclude; 1678 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1679 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1680 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1681 1682 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1683 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1684 ie = Args.filtered_end(); it != ie; ++it) { 1685 const Arg *A = *it; 1686 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1687 } 1688 1689 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1690 StringRef Value(A->getValue()); 1691 size_t Comma = Value.find(','); 1692 unsigned Bytes = 0; 1693 unsigned EndOfLine = 0; 1694 1695 if (Comma == StringRef::npos || 1696 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1697 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1698 Diags.Report(diag::err_drv_preamble_format); 1699 else { 1700 Opts.PrecompiledPreambleBytes.first = Bytes; 1701 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1702 } 1703 } 1704 1705 // Add macros from the command line. 1706 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1707 ie = Args.filtered_end(); it != ie; ++it) { 1708 if ((*it)->getOption().matches(OPT_D)) 1709 Opts.addMacroDef((*it)->getValue()); 1710 else 1711 Opts.addMacroUndef((*it)->getValue()); 1712 } 1713 1714 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1715 1716 // Add the ordered list of -includes. 1717 for (arg_iterator it = Args.filtered_begin(OPT_include), 1718 ie = Args.filtered_end(); it != ie; ++it) { 1719 const Arg *A = *it; 1720 Opts.Includes.push_back(A->getValue()); 1721 } 1722 1723 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1724 ie = Args.filtered_end(); it != ie; ++it) { 1725 const Arg *A = *it; 1726 Opts.ChainedIncludes.push_back(A->getValue()); 1727 } 1728 1729 // Include 'altivec.h' if -faltivec option present 1730 if (Args.hasArg(OPT_faltivec)) 1731 Opts.Includes.push_back("altivec.h"); 1732 1733 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1734 ie = Args.filtered_end(); it != ie; ++it) { 1735 const Arg *A = *it; 1736 std::pair<StringRef,StringRef> Split = 1737 StringRef(A->getValue()).split(';'); 1738 1739 if (Split.second.empty()) { 1740 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1741 continue; 1742 } 1743 1744 Opts.addRemappedFile(Split.first, Split.second); 1745 } 1746 1747 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1748 StringRef Name = A->getValue(); 1749 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1750 .Case("libc++", ARCXX_libcxx) 1751 .Case("libstdc++", ARCXX_libstdcxx) 1752 .Case("none", ARCXX_nolib) 1753 .Default(~0U); 1754 if (Library == ~0U) 1755 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1756 else 1757 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1758 } 1759 } 1760 1761 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1762 ArgList &Args, 1763 frontend::ActionKind Action) { 1764 using namespace options; 1765 1766 switch (Action) { 1767 case frontend::ASTDeclList: 1768 case frontend::ASTDump: 1769 case frontend::ASTPrint: 1770 case frontend::ASTView: 1771 case frontend::EmitAssembly: 1772 case frontend::EmitBC: 1773 case frontend::EmitHTML: 1774 case frontend::EmitLLVM: 1775 case frontend::EmitLLVMOnly: 1776 case frontend::EmitCodeGenOnly: 1777 case frontend::EmitObj: 1778 case frontend::FixIt: 1779 case frontend::GenerateModule: 1780 case frontend::GeneratePCH: 1781 case frontend::GeneratePTH: 1782 case frontend::ParseSyntaxOnly: 1783 case frontend::ModuleFileInfo: 1784 case frontend::VerifyPCH: 1785 case frontend::PluginAction: 1786 case frontend::PrintDeclContext: 1787 case frontend::RewriteObjC: 1788 case frontend::RewriteTest: 1789 case frontend::RunAnalysis: 1790 case frontend::MigrateSource: 1791 Opts.ShowCPP = 0; 1792 break; 1793 1794 case frontend::DumpRawTokens: 1795 case frontend::DumpTokens: 1796 case frontend::InitOnly: 1797 case frontend::PrintPreamble: 1798 case frontend::PrintPreprocessedInput: 1799 case frontend::RewriteMacros: 1800 case frontend::RunPreprocessorOnly: 1801 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1802 break; 1803 } 1804 1805 Opts.ShowComments = Args.hasArg(OPT_C); 1806 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1807 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1808 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1809 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1810 } 1811 1812 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1813 using namespace options; 1814 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1815 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1816 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 1817 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1818 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1819 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1820 1821 // Use the default target triple if unspecified. 1822 if (Opts.Triple.empty()) 1823 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1824 } 1825 1826 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1827 const char *const *ArgBegin, 1828 const char *const *ArgEnd, 1829 DiagnosticsEngine &Diags) { 1830 bool Success = true; 1831 1832 // Parse the arguments. 1833 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 1834 const unsigned IncludedFlagsBitmask = options::CC1Option; 1835 unsigned MissingArgIndex, MissingArgCount; 1836 std::unique_ptr<InputArgList> Args( 1837 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount, 1838 IncludedFlagsBitmask)); 1839 1840 // Check for missing argument error. 1841 if (MissingArgCount) { 1842 Diags.Report(diag::err_drv_missing_argument) 1843 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1844 Success = false; 1845 } 1846 1847 // Issue errors on unknown arguments. 1848 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1849 ie = Args->filtered_end(); it != ie; ++it) { 1850 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1851 Success = false; 1852 } 1853 1854 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 1855 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 1856 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1857 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 1858 && Success; 1859 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args); 1860 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1861 // FIXME: We shouldn't have to pass the DashX option around here 1862 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1863 ParseTargetArgs(Res.getTargetOpts(), *Args); 1864 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags, 1865 Res.getTargetOpts()) && Success; 1866 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1867 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1868 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 1869 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1870 Res.getLangOpts()->ObjCExceptions = 1; 1871 } 1872 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1873 // PCH file and find the original header name. Remove the need to do that in 1874 // ParsePreprocessorArgs and remove the FileManager 1875 // parameters from the function and the "FileManager.h" #include. 1876 FileManager FileMgr(Res.getFileSystemOpts()); 1877 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1878 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args, 1879 Res.getFrontendOpts().ProgramAction); 1880 return Success; 1881 } 1882 1883 namespace { 1884 1885 class ModuleSignature { 1886 SmallVector<uint64_t, 16> Data; 1887 unsigned CurBit; 1888 uint64_t CurValue; 1889 1890 public: 1891 ModuleSignature() : CurBit(0), CurValue(0) { } 1892 1893 void add(uint64_t Value, unsigned Bits); 1894 void add(StringRef Value); 1895 void flush(); 1896 1897 llvm::APInt getAsInteger() const; 1898 }; 1899 } 1900 1901 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1902 CurValue |= Value << CurBit; 1903 if (CurBit + NumBits < 64) { 1904 CurBit += NumBits; 1905 return; 1906 } 1907 1908 // Add the current word. 1909 Data.push_back(CurValue); 1910 1911 if (CurBit) 1912 CurValue = Value >> (64-CurBit); 1913 else 1914 CurValue = 0; 1915 CurBit = (CurBit+NumBits) & 63; 1916 } 1917 1918 void ModuleSignature::flush() { 1919 if (CurBit == 0) 1920 return; 1921 1922 Data.push_back(CurValue); 1923 CurBit = 0; 1924 CurValue = 0; 1925 } 1926 1927 void ModuleSignature::add(StringRef Value) { 1928 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1929 add(*I, 8); 1930 } 1931 1932 llvm::APInt ModuleSignature::getAsInteger() const { 1933 return llvm::APInt(Data.size() * 64, Data); 1934 } 1935 1936 std::string CompilerInvocation::getModuleHash() const { 1937 // Note: For QoI reasons, the things we use as a hash here should all be 1938 // dumped via the -module-info flag. 1939 using llvm::hash_code; 1940 using llvm::hash_value; 1941 using llvm::hash_combine; 1942 1943 // Start the signature with the compiler version. 1944 // FIXME: We'd rather use something more cryptographically sound than 1945 // CityHash, but this will do for now. 1946 hash_code code = hash_value(getClangFullRepositoryVersion()); 1947 1948 // Extend the signature with the language options 1949 #define LANGOPT(Name, Bits, Default, Description) \ 1950 code = hash_combine(code, LangOpts->Name); 1951 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1952 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 1953 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1954 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1955 #include "clang/Basic/LangOptions.def" 1956 1957 // Extend the signature with the target options. 1958 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 1959 TargetOpts->ABI); 1960 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 1961 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 1962 1963 // Extend the signature with preprocessor options. 1964 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 1965 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 1966 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 1967 1968 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 1969 I = getPreprocessorOpts().Macros.begin(), 1970 IEnd = getPreprocessorOpts().Macros.end(); 1971 I != IEnd; ++I) { 1972 // If we're supposed to ignore this macro for the purposes of modules, 1973 // don't put it into the hash. 1974 if (!hsOpts.ModulesIgnoreMacros.empty()) { 1975 // Check whether we're ignoring this macro. 1976 StringRef MacroDef = I->first; 1977 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 1978 continue; 1979 } 1980 1981 code = hash_combine(code, I->first, I->second); 1982 } 1983 1984 // Extend the signature with the sysroot. 1985 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 1986 hsOpts.UseStandardSystemIncludes, 1987 hsOpts.UseStandardCXXIncludes, 1988 hsOpts.UseLibcxx); 1989 code = hash_combine(code, hsOpts.ResourceDir); 1990 1991 // Extend the signature with the user build path. 1992 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 1993 1994 // Darwin-specific hack: if we have a sysroot, use the contents and 1995 // modification time of 1996 // $sysroot/System/Library/CoreServices/SystemVersion.plist 1997 // as part of the module hash. 1998 if (!hsOpts.Sysroot.empty()) { 1999 SmallString<128> systemVersionFile; 2000 systemVersionFile += hsOpts.Sysroot; 2001 llvm::sys::path::append(systemVersionFile, "System"); 2002 llvm::sys::path::append(systemVersionFile, "Library"); 2003 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2004 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2005 2006 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2007 llvm::MemoryBuffer::getFile(systemVersionFile.str()); 2008 if (buffer) { 2009 code = hash_combine(code, buffer.get()->getBuffer()); 2010 2011 struct stat statBuf; 2012 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2013 code = hash_combine(code, statBuf.st_mtime); 2014 } 2015 } 2016 2017 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2018 } 2019 2020 namespace clang { 2021 2022 template<typename IntTy> 2023 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2024 IntTy Default, 2025 DiagnosticsEngine *Diags) { 2026 IntTy Res = Default; 2027 if (Arg *A = Args.getLastArg(Id)) { 2028 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2029 if (Diags) 2030 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2031 << A->getValue(); 2032 } 2033 } 2034 return Res; 2035 } 2036 2037 2038 // Declared in clang/Frontend/Utils.h. 2039 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2040 DiagnosticsEngine *Diags) { 2041 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2042 } 2043 2044 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2045 uint64_t Default, 2046 DiagnosticsEngine *Diags) { 2047 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2048 } 2049 2050 void BuryPointer(const void *Ptr) { 2051 // This function may be called only a small fixed amount of times per each 2052 // invocation, otherwise we do actually have a leak which we want to report. 2053 // If this function is called more than kGraveYardMaxSize times, the pointers 2054 // will not be properly buried and a leak detector will report a leak, which 2055 // is what we want in such case. 2056 static const size_t kGraveYardMaxSize = 16; 2057 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2058 #if !defined(_LIBCPP_HAS_NO_THREADS) && defined(__minix) 2059 static std::atomic<unsigned> GraveYardSize; 2060 #else 2061 static unsigned GraveYardSize; 2062 #endif // !defined(_LIBCPP_HAS_NO_THREADS) && defined(__minix) 2063 unsigned Idx = GraveYardSize++; 2064 if (Idx >= kGraveYardMaxSize) 2065 return; 2066 GraveYard[Idx] = Ptr; 2067 } 2068 2069 IntrusiveRefCntPtr<vfs::FileSystem> 2070 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2071 DiagnosticsEngine &Diags) { 2072 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2073 return vfs::getRealFileSystem(); 2074 2075 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2076 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2077 // earlier vfs files are on the bottom 2078 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2079 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2080 llvm::MemoryBuffer::getFile(File); 2081 if (!Buffer) { 2082 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2083 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2084 } 2085 2086 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2087 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2088 if (!FS.get()) { 2089 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2090 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2091 } 2092 Overlay->pushOverlay(FS); 2093 } 2094 return Overlay; 2095 } 2096 } // end namespace clang 2097