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/Driver/DriverDiagnostic.h" 14 #include "clang/Driver/Options.h" 15 #include "clang/Driver/Util.h" 16 #include "clang/Frontend/FrontendDiagnostic.h" 17 #include "clang/Frontend/LangStandard.h" 18 #include "clang/Frontend/Utils.h" 19 #include "clang/Lex/HeaderSearchOptions.h" 20 #include "clang/Serialization/ASTReader.h" 21 #include "llvm/ADT/Hashing.h" 22 #include "llvm/ADT/SmallVector.h" 23 #include "llvm/ADT/STLExtras.h" 24 #include "llvm/ADT/StringExtras.h" 25 #include "llvm/ADT/StringSwitch.h" 26 #include "llvm/ADT/Triple.h" 27 #include "llvm/Option/Arg.h" 28 #include "llvm/Option/ArgList.h" 29 #include "llvm/Option/OptTable.h" 30 #include "llvm/Option/Option.h" 31 #include "llvm/Support/CodeGen.h" 32 #include "llvm/Support/ErrorHandling.h" 33 #include "llvm/Support/FileSystem.h" 34 #include "llvm/Support/Host.h" 35 #include "llvm/Support/Path.h" 36 #include "llvm/Support/Process.h" 37 #include <atomic> 38 #include <memory> 39 #include <sys/stat.h> 40 #include <system_error> 41 using namespace clang; 42 43 //===----------------------------------------------------------------------===// 44 // Initialization. 45 //===----------------------------------------------------------------------===// 46 47 CompilerInvocationBase::CompilerInvocationBase() 48 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 49 DiagnosticOpts(new DiagnosticOptions()), 50 HeaderSearchOpts(new HeaderSearchOptions()), 51 PreprocessorOpts(new PreprocessorOptions()) {} 52 53 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 54 : RefCountedBase<CompilerInvocation>(), 55 LangOpts(new LangOptions(*X.getLangOpts())), 56 TargetOpts(new TargetOptions(X.getTargetOpts())), 57 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 58 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 59 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 60 61 CompilerInvocationBase::~CompilerInvocationBase() {} 62 63 //===----------------------------------------------------------------------===// 64 // Deserialization (from args) 65 //===----------------------------------------------------------------------===// 66 67 using namespace clang::driver; 68 using namespace clang::driver::options; 69 using namespace llvm::opt; 70 71 // 72 73 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 74 DiagnosticsEngine &Diags) { 75 unsigned DefaultOpt = 0; 76 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 77 DefaultOpt = 2; 78 79 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 80 if (A->getOption().matches(options::OPT_O0)) 81 return 0; 82 83 if (A->getOption().matches(options::OPT_Ofast)) 84 return 3; 85 86 assert (A->getOption().matches(options::OPT_O)); 87 88 StringRef S(A->getValue()); 89 if (S == "s" || S == "z" || S.empty()) 90 return 2; 91 92 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 93 } 94 95 return DefaultOpt; 96 } 97 98 static unsigned getOptimizationLevelSize(ArgList &Args) { 99 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 100 if (A->getOption().matches(options::OPT_O)) { 101 switch (A->getValue()[0]) { 102 default: 103 return 0; 104 case 's': 105 return 1; 106 case 'z': 107 return 2; 108 } 109 } 110 } 111 return 0; 112 } 113 114 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 115 OptSpecifier GroupWithValue, 116 std::vector<std::string> &Diagnostics) { 117 for (Arg *A : Args.filtered(Group)) { 118 if (A->getOption().getKind() == Option::FlagClass) { 119 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 120 // its name (minus the "W" or "R" at the beginning) to the warning list. 121 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 122 } else if (A->getOption().matches(GroupWithValue)) { 123 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 124 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 125 } else { 126 // Otherwise, add its value (for OPT_W_Joined and similar). 127 for (const char *Arg : A->getValues()) 128 Diagnostics.push_back(Arg); 129 } 130 } 131 } 132 133 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 134 DiagnosticsEngine &Diags) { 135 using namespace options; 136 bool Success = true; 137 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 138 StringRef Name = A->getValue(); 139 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 140 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 141 .Case(CMDFLAG, NAME##Model) 142 #include "clang/StaticAnalyzer/Core/Analyses.def" 143 .Default(NumStores); 144 if (Value == NumStores) { 145 Diags.Report(diag::err_drv_invalid_value) 146 << A->getAsString(Args) << Name; 147 Success = false; 148 } else { 149 Opts.AnalysisStoreOpt = Value; 150 } 151 } 152 153 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 154 StringRef Name = A->getValue(); 155 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 156 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 157 .Case(CMDFLAG, NAME##Model) 158 #include "clang/StaticAnalyzer/Core/Analyses.def" 159 .Default(NumConstraints); 160 if (Value == NumConstraints) { 161 Diags.Report(diag::err_drv_invalid_value) 162 << A->getAsString(Args) << Name; 163 Success = false; 164 } else { 165 Opts.AnalysisConstraintsOpt = Value; 166 } 167 } 168 169 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 170 StringRef Name = A->getValue(); 171 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 172 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 173 .Case(CMDFLAG, PD_##NAME) 174 #include "clang/StaticAnalyzer/Core/Analyses.def" 175 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 176 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 177 Diags.Report(diag::err_drv_invalid_value) 178 << A->getAsString(Args) << Name; 179 Success = false; 180 } else { 181 Opts.AnalysisDiagOpt = Value; 182 } 183 } 184 185 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 186 StringRef Name = A->getValue(); 187 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 188 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 189 .Case(CMDFLAG, NAME) 190 #include "clang/StaticAnalyzer/Core/Analyses.def" 191 .Default(NumPurgeModes); 192 if (Value == NumPurgeModes) { 193 Diags.Report(diag::err_drv_invalid_value) 194 << A->getAsString(Args) << Name; 195 Success = false; 196 } else { 197 Opts.AnalysisPurgeOpt = Value; 198 } 199 } 200 201 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 202 StringRef Name = A->getValue(); 203 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 204 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 205 .Case(CMDFLAG, NAME) 206 #include "clang/StaticAnalyzer/Core/Analyses.def" 207 .Default(NumInliningModes); 208 if (Value == NumInliningModes) { 209 Diags.Report(diag::err_drv_invalid_value) 210 << A->getAsString(Args) << Name; 211 Success = false; 212 } else { 213 Opts.InliningMode = Value; 214 } 215 } 216 217 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 218 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 219 220 Opts.visualizeExplodedGraphWithGraphViz = 221 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 222 Opts.visualizeExplodedGraphWithUbiGraph = 223 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 224 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 225 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 226 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 227 Opts.AnalyzeNestedBlocks = 228 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 229 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 230 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 231 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 232 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 233 Opts.maxBlockVisitOnPath = 234 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 235 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 236 Opts.InlineMaxStackDepth = 237 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 238 Opts.InlineMaxStackDepth, Diags); 239 240 Opts.CheckersControlList.clear(); 241 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 242 OPT_analyzer_disable_checker), 243 ie = Args.filtered_end(); it != ie; ++it) { 244 const Arg *A = *it; 245 A->claim(); 246 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 247 // We can have a list of comma separated checker names, e.g: 248 // '-analyzer-checker=cocoa,unix' 249 StringRef checkerList = A->getValue(); 250 SmallVector<StringRef, 4> checkers; 251 checkerList.split(checkers, ","); 252 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 253 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 254 } 255 256 // Go through the analyzer configuration options. 257 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 258 ie = Args.filtered_end(); it != ie; ++it) { 259 const Arg *A = *it; 260 A->claim(); 261 // We can have a list of comma separated config names, e.g: 262 // '-analyzer-config key1=val1,key2=val2' 263 StringRef configList = A->getValue(); 264 SmallVector<StringRef, 4> configVals; 265 configList.split(configVals, ","); 266 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 267 StringRef key, val; 268 std::tie(key, val) = configVals[i].split("="); 269 if (val.empty()) { 270 Diags.Report(SourceLocation(), 271 diag::err_analyzer_config_no_value) << configVals[i]; 272 Success = false; 273 break; 274 } 275 if (val.find('=') != StringRef::npos) { 276 Diags.Report(SourceLocation(), 277 diag::err_analyzer_config_multiple_values) 278 << configVals[i]; 279 Success = false; 280 break; 281 } 282 Opts.Config[key] = val; 283 } 284 } 285 286 return Success; 287 } 288 289 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 290 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 291 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 292 return true; 293 } 294 295 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 296 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 297 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 298 } 299 300 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 301 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 302 StringRef Value = A->getValue(); 303 if (Value == "small" || Value == "kernel" || Value == "medium" || 304 Value == "large") 305 return Value; 306 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 307 } 308 return "default"; 309 } 310 311 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 312 /// It returns a pointer to the newly generated Regex instance. 313 static std::shared_ptr<llvm::Regex> 314 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 315 Arg *RpassArg) { 316 StringRef Val = RpassArg->getValue(); 317 std::string RegexError; 318 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 319 if (!Pattern->isValid(RegexError)) { 320 Diags.Report(diag::err_drv_optimization_remark_pattern) 321 << RegexError << RpassArg->getAsString(Args); 322 Pattern.reset(); 323 } 324 return Pattern; 325 } 326 327 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 328 DiagnosticsEngine &Diags, 329 const TargetOptions &TargetOpts) { 330 using namespace options; 331 bool Success = true; 332 333 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 334 // TODO: This could be done in Driver 335 unsigned MaxOptLevel = 3; 336 if (Opts.OptimizationLevel > MaxOptLevel) { 337 // If the optimization level is not supported, fall back on the default optimization 338 Diags.Report(diag::warn_drv_optimization_value) 339 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 340 Opts.OptimizationLevel = MaxOptLevel; 341 } 342 343 // We must always run at least the always inlining pass. 344 Opts.setInlining( 345 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 346 : CodeGenOptions::OnlyAlwaysInlining); 347 // -fno-inline-functions overrides OptimizationLevel > 1. 348 Opts.NoInline = Args.hasArg(OPT_fno_inline); 349 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 350 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 351 352 if (Args.hasArg(OPT_gline_tables_only)) { 353 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 354 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) || 355 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) { 356 bool Default = false; 357 // Until dtrace (via CTF) and LLDB can deal with distributed debug info, 358 // Darwin and FreeBSD default to standalone/full debug info. 359 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() || 360 llvm::Triple(TargetOpts.Triple).isOSFreeBSD()) 361 Default = true; 362 363 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default)) 364 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 365 else 366 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 367 } 368 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 369 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 370 if (Args.hasArg(OPT_gdwarf_2)) 371 Opts.DwarfVersion = 2; 372 else if (Args.hasArg(OPT_gdwarf_3)) 373 Opts.DwarfVersion = 3; 374 else if (Args.hasArg(OPT_gdwarf_4)) 375 Opts.DwarfVersion = 4; 376 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo) 377 // Default Dwarf version is 4 if we are generating debug information. 378 Opts.DwarfVersion = 4; 379 380 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 381 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 382 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 383 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 384 OPT_fuse_register_sized_bitfield_access); 385 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 386 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 387 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 388 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 389 Opts.NoCommon = Args.hasArg(OPT_fno_common); 390 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 391 Opts.OptimizeSize = getOptimizationLevelSize(Args); 392 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 393 Args.hasArg(OPT_ffreestanding)); 394 Opts.UnrollLoops = 395 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 396 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 397 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 398 399 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 400 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 401 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 402 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate); 403 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 404 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping); 405 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 406 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 407 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 408 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 409 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 410 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 411 Opts.CodeModel = getCodeModel(Args, Diags); 412 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 413 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 414 Opts.DisableFree = Args.hasArg(OPT_disable_free); 415 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 416 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 417 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 418 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 419 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 420 Args.hasArg(OPT_cl_finite_math_only)|| 421 Args.hasArg(OPT_cl_fast_relaxed_math)); 422 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 423 Args.hasArg(OPT_cl_finite_math_only)|| 424 Args.hasArg(OPT_cl_fast_relaxed_math)); 425 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 426 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 427 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 428 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 429 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 430 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 431 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 432 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 433 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 434 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 435 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 436 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 437 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 438 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 439 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 440 Args.hasArg(OPT_cl_fast_relaxed_math); 441 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 442 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 443 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 444 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 445 Diags.Report(diag::err_drv_invalid_value) 446 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 447 << Opts.ThreadModel; 448 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 449 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 450 451 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 452 OPT_fno_function_sections, false); 453 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 454 OPT_fno_data_sections, false); 455 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 456 457 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 458 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 459 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 460 461 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 462 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 463 Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover); 464 465 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 466 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 467 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 468 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 469 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 470 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 471 Opts.CoverageNoFunctionNamesInData = 472 Args.hasArg(OPT_coverage_no_function_names_in_data); 473 if (Args.hasArg(OPT_coverage_version_EQ)) { 474 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 475 if (CoverageVersion.size() != 4) { 476 Diags.Report(diag::err_drv_invalid_value) 477 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 478 << CoverageVersion; 479 } else { 480 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 481 } 482 } 483 } 484 485 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 486 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 487 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 488 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 489 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 490 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 491 Opts.SanitizeMemoryTrackOrigins = 492 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 493 Opts.SanitizeUndefinedTrapOnError = 494 Args.hasArg(OPT_fsanitize_undefined_trap_on_error); 495 Opts.SSPBufferSize = 496 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 497 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 498 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 499 StringRef Val = A->getValue(); 500 unsigned StackAlignment = Opts.StackAlignment; 501 Val.getAsInteger(10, StackAlignment); 502 Opts.StackAlignment = StackAlignment; 503 } 504 505 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 506 StringRef Name = A->getValue(); 507 unsigned Method = llvm::StringSwitch<unsigned>(Name) 508 .Case("legacy", CodeGenOptions::Legacy) 509 .Case("non-legacy", CodeGenOptions::NonLegacy) 510 .Case("mixed", CodeGenOptions::Mixed) 511 .Default(~0U); 512 if (Method == ~0U) { 513 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 514 Success = false; 515 } else { 516 Opts.setObjCDispatchMethod( 517 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 518 } 519 } 520 521 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 522 StringRef Name = A->getValue(); 523 unsigned Model = llvm::StringSwitch<unsigned>(Name) 524 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 525 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 526 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 527 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 528 .Default(~0U); 529 if (Model == ~0U) { 530 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 531 Success = false; 532 } else { 533 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 534 } 535 } 536 537 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 538 StringRef Val = A->getValue(); 539 if (Val == "fast") 540 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 541 else if (Val == "on") 542 Opts.setFPContractMode(CodeGenOptions::FPC_On); 543 else if (Val == "off") 544 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 545 else 546 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 547 } 548 549 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 550 if (A->getOption().matches(OPT_fpcc_struct_return)) { 551 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 552 } else { 553 assert(A->getOption().matches(OPT_freg_struct_return)); 554 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 555 } 556 } 557 558 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 559 bool NeedLocTracking = false; 560 561 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 562 Opts.OptimizationRemarkPattern = 563 GenerateOptimizationRemarkRegex(Diags, Args, A); 564 NeedLocTracking = true; 565 } 566 567 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 568 Opts.OptimizationRemarkMissedPattern = 569 GenerateOptimizationRemarkRegex(Diags, Args, A); 570 NeedLocTracking = true; 571 } 572 573 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 574 Opts.OptimizationRemarkAnalysisPattern = 575 GenerateOptimizationRemarkRegex(Diags, Args, A); 576 NeedLocTracking = true; 577 } 578 579 // If the user requested to use a sample profile for PGO, then the 580 // backend will need to track source location information so the profile 581 // can be incorporated into the IR. 582 if (!Opts.SampleProfileFile.empty()) 583 NeedLocTracking = true; 584 585 // If the user requested a flag that requires source locations available in 586 // the backend, make sure that the backend tracks source location information. 587 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 588 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 589 590 return Success; 591 } 592 593 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 594 ArgList &Args) { 595 using namespace options; 596 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 597 Opts.Targets = Args.getAllArgValues(OPT_MT); 598 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 599 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 600 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 601 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 602 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 603 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 604 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 605 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 606 Opts.ModuleDependencyOutputDir = 607 Args.getLastArgValue(OPT_module_dependency_dir); 608 } 609 610 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 611 DiagnosticsEngine *Diags) { 612 using namespace options; 613 bool Success = true; 614 615 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 616 if (Arg *A = 617 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 618 Opts.DiagnosticSerializationFile = A->getValue(); 619 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 620 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 621 Opts.Pedantic = Args.hasArg(OPT_pedantic); 622 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 623 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 624 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 625 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 626 OPT_fno_show_column, 627 /*Default=*/true); 628 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 629 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 630 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 631 632 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 633 634 // Default behavior is to not to show note include stacks. 635 Opts.ShowNoteIncludeStack = false; 636 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 637 OPT_fno_diagnostics_show_note_include_stack)) 638 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 639 Opts.ShowNoteIncludeStack = true; 640 641 StringRef ShowOverloads = 642 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 643 if (ShowOverloads == "best") 644 Opts.setShowOverloads(Ovl_Best); 645 else if (ShowOverloads == "all") 646 Opts.setShowOverloads(Ovl_All); 647 else { 648 Success = false; 649 if (Diags) 650 Diags->Report(diag::err_drv_invalid_value) 651 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 652 << ShowOverloads; 653 } 654 655 StringRef ShowCategory = 656 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 657 if (ShowCategory == "none") 658 Opts.ShowCategories = 0; 659 else if (ShowCategory == "id") 660 Opts.ShowCategories = 1; 661 else if (ShowCategory == "name") 662 Opts.ShowCategories = 2; 663 else { 664 Success = false; 665 if (Diags) 666 Diags->Report(diag::err_drv_invalid_value) 667 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 668 << ShowCategory; 669 } 670 671 StringRef Format = 672 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 673 if (Format == "clang") 674 Opts.setFormat(DiagnosticOptions::Clang); 675 else if (Format == "msvc") 676 Opts.setFormat(DiagnosticOptions::Msvc); 677 else if (Format == "msvc-fallback") { 678 Opts.setFormat(DiagnosticOptions::Msvc); 679 Opts.CLFallbackMode = true; 680 } else if (Format == "vi") 681 Opts.setFormat(DiagnosticOptions::Vi); 682 else { 683 Success = false; 684 if (Diags) 685 Diags->Report(diag::err_drv_invalid_value) 686 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 687 << Format; 688 } 689 690 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 691 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 692 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 693 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 694 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 695 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 696 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 697 Opts.MacroBacktraceLimit = 698 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 699 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 700 Opts.TemplateBacktraceLimit = getLastArgIntValue( 701 Args, OPT_ftemplate_backtrace_limit, 702 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 703 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 704 Args, OPT_fconstexpr_backtrace_limit, 705 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 706 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 707 DiagnosticOptions::DefaultTabStop, Diags); 708 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 709 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 710 if (Diags) 711 Diags->Report(diag::warn_ignoring_ftabstop_value) 712 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 713 } 714 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 715 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 716 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 717 718 return Success; 719 } 720 721 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 722 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 723 } 724 725 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 726 DiagnosticsEngine &Diags) { 727 using namespace options; 728 Opts.ProgramAction = frontend::ParseSyntaxOnly; 729 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 730 switch (A->getOption().getID()) { 731 default: 732 llvm_unreachable("Invalid option in group!"); 733 case OPT_ast_list: 734 Opts.ProgramAction = frontend::ASTDeclList; break; 735 case OPT_ast_dump: 736 case OPT_ast_dump_lookups: 737 Opts.ProgramAction = frontend::ASTDump; break; 738 case OPT_ast_print: 739 Opts.ProgramAction = frontend::ASTPrint; break; 740 case OPT_ast_view: 741 Opts.ProgramAction = frontend::ASTView; break; 742 case OPT_dump_raw_tokens: 743 Opts.ProgramAction = frontend::DumpRawTokens; break; 744 case OPT_dump_tokens: 745 Opts.ProgramAction = frontend::DumpTokens; break; 746 case OPT_S: 747 Opts.ProgramAction = frontend::EmitAssembly; break; 748 case OPT_emit_llvm_bc: 749 Opts.ProgramAction = frontend::EmitBC; break; 750 case OPT_emit_html: 751 Opts.ProgramAction = frontend::EmitHTML; break; 752 case OPT_emit_llvm: 753 Opts.ProgramAction = frontend::EmitLLVM; break; 754 case OPT_emit_llvm_only: 755 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 756 case OPT_emit_codegen_only: 757 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 758 case OPT_emit_obj: 759 Opts.ProgramAction = frontend::EmitObj; break; 760 case OPT_fixit_EQ: 761 Opts.FixItSuffix = A->getValue(); 762 // fall-through! 763 case OPT_fixit: 764 Opts.ProgramAction = frontend::FixIt; break; 765 case OPT_emit_module: 766 Opts.ProgramAction = frontend::GenerateModule; break; 767 case OPT_emit_pch: 768 Opts.ProgramAction = frontend::GeneratePCH; break; 769 case OPT_emit_pth: 770 Opts.ProgramAction = frontend::GeneratePTH; break; 771 case OPT_init_only: 772 Opts.ProgramAction = frontend::InitOnly; break; 773 case OPT_fsyntax_only: 774 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 775 case OPT_module_file_info: 776 Opts.ProgramAction = frontend::ModuleFileInfo; break; 777 case OPT_verify_pch: 778 Opts.ProgramAction = frontend::VerifyPCH; break; 779 case OPT_print_decl_contexts: 780 Opts.ProgramAction = frontend::PrintDeclContext; break; 781 case OPT_print_preamble: 782 Opts.ProgramAction = frontend::PrintPreamble; break; 783 case OPT_E: 784 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 785 case OPT_rewrite_macros: 786 Opts.ProgramAction = frontend::RewriteMacros; break; 787 case OPT_rewrite_objc: 788 Opts.ProgramAction = frontend::RewriteObjC; break; 789 case OPT_rewrite_test: 790 Opts.ProgramAction = frontend::RewriteTest; break; 791 case OPT_analyze: 792 Opts.ProgramAction = frontend::RunAnalysis; break; 793 case OPT_migrate: 794 Opts.ProgramAction = frontend::MigrateSource; break; 795 case OPT_Eonly: 796 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 797 } 798 } 799 800 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 801 Opts.Plugins.push_back(A->getValue(0)); 802 Opts.ProgramAction = frontend::PluginAction; 803 Opts.ActionName = A->getValue(); 804 805 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 806 end = Args.filtered_end(); it != end; ++it) { 807 if ((*it)->getValue(0) == Opts.ActionName) 808 Opts.PluginArgs.push_back((*it)->getValue(1)); 809 } 810 } 811 812 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 813 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 814 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 815 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 816 end = Args.filtered_end(); it != end; ++it) { 817 if ((*it)->getValue(0) == Opts.AddPluginActions[i]) 818 Opts.AddPluginArgs[i].push_back((*it)->getValue(1)); 819 } 820 } 821 822 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 823 Opts.CodeCompletionAt = 824 ParsedSourceLocation::FromString(A->getValue()); 825 if (Opts.CodeCompletionAt.FileName.empty()) 826 Diags.Report(diag::err_drv_invalid_value) 827 << A->getAsString(Args) << A->getValue(); 828 } 829 Opts.DisableFree = Args.hasArg(OPT_disable_free); 830 831 Opts.OutputFile = Args.getLastArgValue(OPT_o); 832 Opts.Plugins = Args.getAllArgValues(OPT_load); 833 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 834 Opts.ShowHelp = Args.hasArg(OPT_help); 835 Opts.ShowStats = Args.hasArg(OPT_print_stats); 836 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 837 Opts.ShowVersion = Args.hasArg(OPT_version); 838 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 839 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 840 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 841 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 842 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 843 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 844 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 845 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 846 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 847 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 848 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 849 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 850 851 Opts.CodeCompleteOpts.IncludeMacros 852 = Args.hasArg(OPT_code_completion_macros); 853 Opts.CodeCompleteOpts.IncludeCodePatterns 854 = Args.hasArg(OPT_code_completion_patterns); 855 Opts.CodeCompleteOpts.IncludeGlobals 856 = !Args.hasArg(OPT_no_code_completion_globals); 857 Opts.CodeCompleteOpts.IncludeBriefComments 858 = Args.hasArg(OPT_code_completion_brief_comments); 859 860 Opts.OverrideRecordLayoutsFile 861 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 862 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 863 OPT_arcmt_modify, 864 OPT_arcmt_migrate)) { 865 switch (A->getOption().getID()) { 866 default: 867 llvm_unreachable("missed a case"); 868 case OPT_arcmt_check: 869 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 870 break; 871 case OPT_arcmt_modify: 872 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 873 break; 874 case OPT_arcmt_migrate: 875 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 876 break; 877 } 878 } 879 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 880 Opts.ARCMTMigrateReportOut 881 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 882 Opts.ARCMTMigrateEmitARCErrors 883 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 884 885 if (Args.hasArg(OPT_objcmt_migrate_literals)) 886 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 887 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 888 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 889 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 890 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 891 if (Args.hasArg(OPT_objcmt_migrate_property)) 892 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 893 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 894 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 895 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 896 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 897 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 898 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 899 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 900 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 901 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 902 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 903 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 904 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 905 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 906 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 907 if (Args.hasArg(OPT_objcmt_atomic_property)) 908 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 909 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 910 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 911 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 912 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 913 if (Args.hasArg(OPT_objcmt_migrate_all)) 914 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 915 916 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 917 918 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 919 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 920 Diags.Report(diag::err_drv_argument_not_allowed_with) 921 << "ARC migration" << "ObjC migration"; 922 } 923 924 InputKind DashX = IK_None; 925 if (const Arg *A = Args.getLastArg(OPT_x)) { 926 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 927 .Case("c", IK_C) 928 .Case("cl", IK_OpenCL) 929 .Case("cuda", IK_CUDA) 930 .Case("c++", IK_CXX) 931 .Case("objective-c", IK_ObjC) 932 .Case("objective-c++", IK_ObjCXX) 933 .Case("cpp-output", IK_PreprocessedC) 934 .Case("assembler-with-cpp", IK_Asm) 935 .Case("c++-cpp-output", IK_PreprocessedCXX) 936 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 937 .Case("objc-cpp-output", IK_PreprocessedObjC) 938 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 939 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 940 .Case("c-header", IK_C) 941 .Case("cl-header", IK_OpenCL) 942 .Case("objective-c-header", IK_ObjC) 943 .Case("c++-header", IK_CXX) 944 .Case("objective-c++-header", IK_ObjCXX) 945 .Cases("ast", "pcm", IK_AST) 946 .Case("ir", IK_LLVM_IR) 947 .Default(IK_None); 948 if (DashX == IK_None) 949 Diags.Report(diag::err_drv_invalid_value) 950 << A->getAsString(Args) << A->getValue(); 951 } 952 953 // '-' is the default input if none is given. 954 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 955 Opts.Inputs.clear(); 956 if (Inputs.empty()) 957 Inputs.push_back("-"); 958 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 959 InputKind IK = DashX; 960 if (IK == IK_None) { 961 IK = FrontendOptions::getInputKindForExtension( 962 StringRef(Inputs[i]).rsplit('.').second); 963 // FIXME: Remove this hack. 964 if (i == 0) 965 DashX = IK; 966 } 967 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 968 } 969 970 return DashX; 971 } 972 973 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 974 void *MainAddr) { 975 SmallString<128> P(llvm::sys::fs::getMainExecutable(Argv0, MainAddr)); 976 977 if (!P.empty()) { 978 llvm::sys::path::remove_filename(P); // Remove /clang from foo/bin/clang 979 llvm::sys::path::remove_filename(P); // Remove /bin from foo/bin 980 981 // Get foo/lib/clang/<version>/include 982 llvm::sys::path::append(P, "lib", "clang", CLANG_VERSION_STRING); 983 } 984 985 return P.str(); 986 } 987 988 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 989 using namespace options; 990 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 991 Opts.Verbose = Args.hasArg(OPT_v); 992 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 993 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 994 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 995 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 996 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 997 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 998 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 999 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1000 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1001 // -fmodules implies -fmodule-maps 1002 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules); 1003 Opts.ModuleCachePruneInterval = 1004 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1005 Opts.ModuleCachePruneAfter = 1006 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1007 Opts.ModulesValidateOncePerBuildSession = 1008 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1009 Opts.BuildSessionTimestamp = 1010 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1011 Opts.ModulesValidateSystemHeaders = 1012 Args.hasArg(OPT_fmodules_validate_system_headers); 1013 1014 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro), 1015 ie = Args.filtered_end(); 1016 it != ie; ++it) { 1017 StringRef MacroDef = (*it)->getValue(); 1018 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1019 } 1020 std::vector<std::string> ModuleMapFiles = 1021 Args.getAllArgValues(OPT_fmodule_map_file); 1022 Opts.ModuleMapFiles.insert(ModuleMapFiles.begin(), ModuleMapFiles.end()); 1023 1024 // Add -I..., -F..., and -index-header-map options in order. 1025 bool IsIndexHeaderMap = false; 1026 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1027 OPT_index_header_map), 1028 ie = Args.filtered_end(); it != ie; ++it) { 1029 if ((*it)->getOption().matches(OPT_index_header_map)) { 1030 // -index-header-map applies to the next -I or -F. 1031 IsIndexHeaderMap = true; 1032 continue; 1033 } 1034 1035 frontend::IncludeDirGroup Group 1036 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1037 1038 Opts.AddPath((*it)->getValue(), Group, 1039 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true); 1040 IsIndexHeaderMap = false; 1041 } 1042 1043 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1044 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1045 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1046 OPT_iwithprefixbefore), 1047 ie = Args.filtered_end(); it != ie; ++it) { 1048 const Arg *A = *it; 1049 if (A->getOption().matches(OPT_iprefix)) 1050 Prefix = A->getValue(); 1051 else if (A->getOption().matches(OPT_iwithprefix)) 1052 Opts.AddPath(Prefix.str() + A->getValue(), 1053 frontend::After, false, true); 1054 else 1055 Opts.AddPath(Prefix.str() + A->getValue(), 1056 frontend::Angled, false, true); 1057 } 1058 1059 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1060 ie = Args.filtered_end(); it != ie; ++it) 1061 Opts.AddPath((*it)->getValue(), frontend::After, false, true); 1062 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1063 ie = Args.filtered_end(); it != ie; ++it) 1064 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true); 1065 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1066 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1067 Opts.AddPath((*it)->getValue(), frontend::System, false, 1068 !(*it)->getOption().matches(OPT_iwithsysroot)); 1069 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1070 ie = Args.filtered_end(); it != ie; ++it) 1071 Opts.AddPath((*it)->getValue(), frontend::System, true, true); 1072 1073 // Add the paths for the various language specific isystem flags. 1074 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1075 ie = Args.filtered_end(); it != ie; ++it) 1076 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true); 1077 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1078 ie = Args.filtered_end(); it != ie; ++it) 1079 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true); 1080 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1081 ie = Args.filtered_end(); it != ie; ++it) 1082 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true); 1083 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1084 ie = Args.filtered_end(); it != ie; ++it) 1085 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true); 1086 1087 // Add the internal paths from a driver that detects standard include paths. 1088 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1089 OPT_internal_externc_isystem), 1090 E = Args.filtered_end(); 1091 I != E; ++I) { 1092 frontend::IncludeDirGroup Group = frontend::System; 1093 if ((*I)->getOption().matches(OPT_internal_externc_isystem)) 1094 Group = frontend::ExternCSystem; 1095 Opts.AddPath((*I)->getValue(), Group, false, true); 1096 } 1097 1098 // Add the path prefixes which are implicitly treated as being system headers. 1099 for (arg_iterator I = Args.filtered_begin(OPT_system_header_prefix, 1100 OPT_no_system_header_prefix), 1101 E = Args.filtered_end(); 1102 I != E; ++I) 1103 Opts.AddSystemHeaderPrefix( 1104 (*I)->getValue(), (*I)->getOption().matches(OPT_system_header_prefix)); 1105 1106 for (arg_iterator I = Args.filtered_begin(OPT_ivfsoverlay), 1107 E = Args.filtered_end(); I != E; ++I) 1108 Opts.AddVFSOverlayFile((*I)->getValue()); 1109 } 1110 1111 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1112 LangStandard::Kind LangStd) { 1113 // Set some properties which depend solely on the input kind; it would be nice 1114 // to move these to the language standard, and have the driver resolve the 1115 // input kind + language standard. 1116 if (IK == IK_Asm) { 1117 Opts.AsmPreprocessor = 1; 1118 } else if (IK == IK_ObjC || 1119 IK == IK_ObjCXX || 1120 IK == IK_PreprocessedObjC || 1121 IK == IK_PreprocessedObjCXX) { 1122 Opts.ObjC1 = Opts.ObjC2 = 1; 1123 } 1124 1125 if (LangStd == LangStandard::lang_unspecified) { 1126 // Based on the base language, pick one. 1127 switch (IK) { 1128 case IK_None: 1129 case IK_AST: 1130 case IK_LLVM_IR: 1131 llvm_unreachable("Invalid input kind!"); 1132 case IK_OpenCL: 1133 LangStd = LangStandard::lang_opencl; 1134 break; 1135 case IK_CUDA: 1136 LangStd = LangStandard::lang_cuda; 1137 break; 1138 case IK_Asm: 1139 case IK_C: 1140 case IK_PreprocessedC: 1141 case IK_ObjC: 1142 case IK_PreprocessedObjC: 1143 LangStd = LangStandard::lang_gnu11; 1144 break; 1145 case IK_CXX: 1146 case IK_PreprocessedCXX: 1147 case IK_ObjCXX: 1148 case IK_PreprocessedObjCXX: 1149 LangStd = LangStandard::lang_gnucxx98; 1150 break; 1151 } 1152 } 1153 1154 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1155 Opts.LineComment = Std.hasLineComments(); 1156 Opts.C99 = Std.isC99(); 1157 Opts.C11 = Std.isC11(); 1158 Opts.CPlusPlus = Std.isCPlusPlus(); 1159 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1160 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1161 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1162 Opts.Digraphs = Std.hasDigraphs(); 1163 Opts.GNUMode = Std.isGNUMode(); 1164 Opts.GNUInline = !Std.isC99(); 1165 Opts.HexFloats = Std.hasHexFloats(); 1166 Opts.ImplicitInt = Std.hasImplicitInt(); 1167 1168 // Set OpenCL Version. 1169 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1170 if (LangStd == LangStandard::lang_opencl) 1171 Opts.OpenCLVersion = 100; 1172 else if (LangStd == LangStandard::lang_opencl11) 1173 Opts.OpenCLVersion = 110; 1174 else if (LangStd == LangStandard::lang_opencl12) 1175 Opts.OpenCLVersion = 120; 1176 1177 // OpenCL has some additional defaults. 1178 if (Opts.OpenCL) { 1179 Opts.AltiVec = 0; 1180 Opts.CXXOperatorNames = 1; 1181 Opts.LaxVectorConversions = 0; 1182 Opts.DefaultFPContract = 1; 1183 Opts.NativeHalfType = 1; 1184 } 1185 1186 Opts.CUDA = LangStd == LangStandard::lang_cuda || IK == IK_CUDA; 1187 1188 // OpenCL and C++ both have bool, true, false keywords. 1189 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1190 1191 // OpenCL has half keyword 1192 Opts.Half = Opts.OpenCL; 1193 1194 // C++ has wchar_t keyword. 1195 Opts.WChar = Opts.CPlusPlus; 1196 1197 Opts.GNUKeywords = Opts.GNUMode; 1198 Opts.CXXOperatorNames = Opts.CPlusPlus; 1199 1200 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1201 // is specified, or -std is set to a conforming mode. 1202 // Trigraphs are disabled by default in c++1z onwards. 1203 Opts.Trigraphs = !Opts.GNUMode && !Opts.CPlusPlus1z; 1204 1205 Opts.DollarIdents = !Opts.AsmPreprocessor; 1206 1207 // C++14 onwards has sized global deallocation functions. 1208 Opts.SizedDeallocation = Opts.CPlusPlus14; 1209 } 1210 1211 /// Attempt to parse a visibility value out of the given argument. 1212 static Visibility parseVisibility(Arg *arg, ArgList &args, 1213 DiagnosticsEngine &diags) { 1214 StringRef value = arg->getValue(); 1215 if (value == "default") { 1216 return DefaultVisibility; 1217 } else if (value == "hidden") { 1218 return HiddenVisibility; 1219 } else if (value == "protected") { 1220 // FIXME: diagnose if target does not support protected visibility 1221 return ProtectedVisibility; 1222 } 1223 1224 diags.Report(diag::err_drv_invalid_value) 1225 << arg->getAsString(args) << value; 1226 return DefaultVisibility; 1227 } 1228 1229 static unsigned parseMSCVersion(ArgList &Args, DiagnosticsEngine &Diags) { 1230 auto Arg = Args.getLastArg(OPT_fms_compatibility_version); 1231 if (!Arg) 1232 return 0; 1233 1234 // The MSC versioning scheme involves four versioning components: 1235 // - Major 1236 // - Minor 1237 // - Build 1238 // - Patch 1239 // 1240 // We accept either the old style (_MSC_VER) value, or a _MSC_FULL_VER value. 1241 // Additionally, the value may be provided in the form of a more readable 1242 // MM.mm.bbbbb.pp version. 1243 // 1244 // Unfortunately, due to the bit-width limitations, we cannot currently encode 1245 // the value for the patch level. 1246 1247 unsigned VC[4] = {0}; 1248 StringRef Value = Arg->getValue(); 1249 SmallVector<StringRef, 4> Components; 1250 1251 Value.split(Components, ".", llvm::array_lengthof(VC)); 1252 for (unsigned CI = 0, 1253 CE = std::min(Components.size(), llvm::array_lengthof(VC)); 1254 CI < CE; ++CI) { 1255 if (Components[CI].getAsInteger(10, VC[CI])) { 1256 Diags.Report(diag::err_drv_invalid_value) 1257 << Arg->getAsString(Args) << Value; 1258 return 0; 1259 } 1260 } 1261 1262 // FIXME we cannot encode the patch level 1263 return VC[0] * 10000000 + VC[1] * 100000 + VC[2]; 1264 } 1265 1266 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1267 DiagnosticsEngine &Diags) { 1268 // FIXME: Cleanup per-file based stuff. 1269 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1270 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1271 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1272 #define LANGSTANDARD(id, name, desc, features) \ 1273 .Case(name, LangStandard::lang_##id) 1274 #include "clang/Frontend/LangStandards.def" 1275 .Default(LangStandard::lang_unspecified); 1276 if (LangStd == LangStandard::lang_unspecified) 1277 Diags.Report(diag::err_drv_invalid_value) 1278 << A->getAsString(Args) << A->getValue(); 1279 else { 1280 // Valid standard, check to make sure language and standard are 1281 // compatible. 1282 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1283 switch (IK) { 1284 case IK_C: 1285 case IK_ObjC: 1286 case IK_PreprocessedC: 1287 case IK_PreprocessedObjC: 1288 if (!(Std.isC89() || Std.isC99())) 1289 Diags.Report(diag::err_drv_argument_not_allowed_with) 1290 << A->getAsString(Args) << "C/ObjC"; 1291 break; 1292 case IK_CXX: 1293 case IK_ObjCXX: 1294 case IK_PreprocessedCXX: 1295 case IK_PreprocessedObjCXX: 1296 if (!Std.isCPlusPlus()) 1297 Diags.Report(diag::err_drv_argument_not_allowed_with) 1298 << A->getAsString(Args) << "C++/ObjC++"; 1299 break; 1300 case IK_OpenCL: 1301 if (!Std.isC99()) 1302 Diags.Report(diag::err_drv_argument_not_allowed_with) 1303 << A->getAsString(Args) << "OpenCL"; 1304 break; 1305 case IK_CUDA: 1306 if (!Std.isCPlusPlus()) 1307 Diags.Report(diag::err_drv_argument_not_allowed_with) 1308 << A->getAsString(Args) << "CUDA"; 1309 break; 1310 default: 1311 break; 1312 } 1313 } 1314 } 1315 1316 // -cl-std only applies for OpenCL language standards. 1317 // Override the -std option in this case. 1318 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1319 LangStandard::Kind OpenCLLangStd 1320 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1321 .Case("CL", LangStandard::lang_opencl) 1322 .Case("CL1.1", LangStandard::lang_opencl11) 1323 .Case("CL1.2", LangStandard::lang_opencl12) 1324 .Default(LangStandard::lang_unspecified); 1325 1326 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1327 Diags.Report(diag::err_drv_invalid_value) 1328 << A->getAsString(Args) << A->getValue(); 1329 } 1330 else 1331 LangStd = OpenCLLangStd; 1332 } 1333 1334 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1335 1336 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1337 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1338 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1339 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1340 // name, as it doesn't seem a useful distinction. 1341 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1342 Opts.GNUKeywords); 1343 1344 if (Args.hasArg(OPT_fno_operator_names)) 1345 Opts.CXXOperatorNames = 0; 1346 1347 if (Opts.ObjC1) { 1348 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1349 StringRef value = arg->getValue(); 1350 if (Opts.ObjCRuntime.tryParse(value)) 1351 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1352 } 1353 1354 if (Args.hasArg(OPT_fobjc_gc_only)) 1355 Opts.setGC(LangOptions::GCOnly); 1356 else if (Args.hasArg(OPT_fobjc_gc)) 1357 Opts.setGC(LangOptions::HybridGC); 1358 else if (Args.hasArg(OPT_fobjc_arc)) { 1359 Opts.ObjCAutoRefCount = 1; 1360 if (!Opts.ObjCRuntime.allowsARC()) 1361 Diags.Report(diag::err_arc_unsupported_on_runtime); 1362 1363 // Only set ObjCARCWeak if ARC is enabled. 1364 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1365 Opts.ObjCARCWeak = 1; 1366 else 1367 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1368 } 1369 1370 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1371 Opts.ObjCInferRelatedResultType = 0; 1372 1373 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1374 Opts.ObjCSubscriptingLegacyRuntime = 1375 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1376 } 1377 1378 if (Args.hasArg(OPT_fgnu89_inline)) 1379 Opts.GNUInline = 1; 1380 1381 if (Args.hasArg(OPT_fapple_kext)) { 1382 if (!Opts.CPlusPlus) 1383 Diags.Report(diag::warn_c_kext); 1384 else 1385 Opts.AppleKext = 1; 1386 } 1387 1388 if (Args.hasArg(OPT_print_ivar_layout)) 1389 Opts.ObjCGCBitmapPrint = 1; 1390 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1391 Opts.NoConstantCFStrings = 1; 1392 1393 if (Args.hasArg(OPT_faltivec)) 1394 Opts.AltiVec = 1; 1395 1396 if (Args.hasArg(OPT_pthread)) 1397 Opts.POSIXThreads = 1; 1398 1399 // The value-visibility mode defaults to "default". 1400 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1401 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1402 } else { 1403 Opts.setValueVisibilityMode(DefaultVisibility); 1404 } 1405 1406 // The type-visibility mode defaults to the value-visibility mode. 1407 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1408 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1409 } else { 1410 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1411 } 1412 1413 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1414 Opts.InlineVisibilityHidden = 1; 1415 1416 if (Args.hasArg(OPT_ftrapv)) { 1417 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1418 // Set the handler, if one is specified. 1419 Opts.OverflowHandler = 1420 Args.getLastArgValue(OPT_ftrapv_handler); 1421 } 1422 else if (Args.hasArg(OPT_fwrapv)) 1423 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1424 1425 if (Args.hasArg(OPT_trigraphs)) 1426 Opts.Trigraphs = 1; 1427 1428 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1429 OPT_fno_dollars_in_identifiers, 1430 Opts.DollarIdents); 1431 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1432 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1433 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1434 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1435 Opts.MSCompatibilityVersion = parseMSCVersion(Args, Diags); 1436 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1437 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1438 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1439 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1440 Opts.ConstStrings); 1441 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1442 Opts.LaxVectorConversions = 0; 1443 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1444 Opts.ThreadsafeStatics = 0; 1445 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1446 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1447 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1448 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1449 Opts.SEHExceptions = Args.hasArg(OPT_fseh_exceptions); 1450 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1451 1452 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1453 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1454 Opts.Blocks = Args.hasArg(OPT_fblocks); 1455 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1456 Opts.Modules = Args.hasArg(OPT_fmodules); 1457 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1458 Opts.ModulesDeclUse = 1459 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1460 Opts.ModulesSearchAll = Opts.Modules && 1461 !Args.hasArg(OPT_fno_modules_search_all) && 1462 Args.hasArg(OPT_fmodules_search_all); 1463 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1464 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1465 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1466 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1467 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1468 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1469 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1470 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1471 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1472 Opts.SizedDeallocation |= Args.hasArg(OPT_fsized_deallocation); 1473 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1474 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1475 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1476 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1477 Opts.InstantiationDepth = 1478 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1479 Opts.ArrowDepth = 1480 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1481 Opts.ConstexprCallDepth = 1482 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1483 Opts.ConstexprStepLimit = 1484 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1485 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1486 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1487 Opts.NumLargeByValueCopy = 1488 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1489 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1490 Opts.ObjCConstantStringClass = 1491 Args.getLastArgValue(OPT_fconstant_string_class); 1492 Opts.ObjCDefaultSynthProperties = 1493 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1494 Opts.EncodeExtendedBlockSig = 1495 Args.hasArg(OPT_fencode_extended_block_signature); 1496 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1497 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1498 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1499 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1500 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1501 Opts.Static = Args.hasArg(OPT_static_define); 1502 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1503 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1504 || Args.hasArg(OPT_fdump_record_layouts); 1505 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1506 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1507 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1508 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1509 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1510 Opts.MRTD = Args.hasArg(OPT_mrtd); 1511 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1512 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1513 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1514 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1515 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1516 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1517 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1518 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1519 Opts.ImplementationOfModule = 1520 Args.getLastArgValue(OPT_fmodule_implementation_of); 1521 Opts.NativeHalfType = Opts.NativeHalfType; 1522 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1523 1524 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1525 Opts.CurrentModule != Opts.ImplementationOfModule) { 1526 Diags.Report(diag::err_conflicting_module_names) 1527 << Opts.CurrentModule << Opts.ImplementationOfModule; 1528 } 1529 1530 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1531 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1532 .Case("target", LangOptions::ASMM_Target) 1533 .Case("no", LangOptions::ASMM_Off) 1534 .Case("yes", LangOptions::ASMM_On) 1535 .Default(255)) { 1536 default: 1537 Diags.Report(diag::err_drv_invalid_value) 1538 << "-faddress-space-map-mangling=" << A->getValue(); 1539 break; 1540 case LangOptions::ASMM_Target: 1541 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1542 break; 1543 case LangOptions::ASMM_On: 1544 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1545 break; 1546 case LangOptions::ASMM_Off: 1547 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1548 break; 1549 } 1550 } 1551 1552 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1553 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1554 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1555 A->getValue()) 1556 .Case("single", 1557 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1558 .Case("multiple", 1559 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1560 .Case("virtual", 1561 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1562 .Default(LangOptions::PPTMK_BestCase); 1563 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1564 Diags.Report(diag::err_drv_invalid_value) 1565 << "-fms-memptr-rep=" << A->getValue(); 1566 1567 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1568 } 1569 1570 // Check if -fopenmp= is specified. 1571 if (const Arg *A = Args.getLastArg(options::OPT_fopenmp_EQ)) { 1572 Opts.OpenMP = llvm::StringSwitch<bool>(A->getValue()) 1573 .Case("libiomp5", true) 1574 .Default(false); 1575 } 1576 1577 // Record whether the __DEPRECATED define was requested. 1578 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1579 OPT_fno_deprecated_macro, 1580 Opts.Deprecated); 1581 1582 // FIXME: Eliminate this dependency. 1583 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1584 OptSize = getOptimizationLevelSize(Args); 1585 Opts.Optimize = Opt != 0; 1586 Opts.OptimizeSize = OptSize != 0; 1587 1588 // This is the __NO_INLINE__ define, which just depends on things like the 1589 // optimization level and -fno-inline, not actually whether the backend has 1590 // inlining enabled. 1591 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1592 1593 Opts.FastMath = Args.hasArg(OPT_ffast_math); 1594 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 1595 1596 Opts.RetainCommentsFromSystemHeaders = 1597 Args.hasArg(OPT_fretain_comments_from_system_headers); 1598 1599 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1600 switch (SSP) { 1601 default: 1602 Diags.Report(diag::err_drv_invalid_value) 1603 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1604 break; 1605 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1606 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1607 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1608 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1609 } 1610 1611 // Parse -fsanitize= arguments. 1612 std::vector<std::string> Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ); 1613 for (unsigned I = 0, N = Sanitizers.size(); I != N; ++I) { 1614 // Since the Opts.Sanitize* values are bitfields, it's a little tricky to 1615 // efficiently map string values to them. Perform the mapping indirectly: 1616 // convert strings to enumerated values, then switch over the enum to set 1617 // the right bitfield value. 1618 enum Sanitizer { 1619 #define SANITIZER(NAME, ID) \ 1620 ID, 1621 #include "clang/Basic/Sanitizers.def" 1622 Unknown 1623 }; 1624 switch (llvm::StringSwitch<unsigned>(Sanitizers[I]) 1625 #define SANITIZER(NAME, ID) \ 1626 .Case(NAME, ID) 1627 #include "clang/Basic/Sanitizers.def" 1628 .Default(Unknown)) { 1629 #define SANITIZER(NAME, ID) \ 1630 case ID: \ 1631 Opts.Sanitize.ID = true; \ 1632 break; 1633 #include "clang/Basic/Sanitizers.def" 1634 1635 case Unknown: 1636 Diags.Report(diag::err_drv_invalid_value) 1637 << "-fsanitize=" << Sanitizers[I]; 1638 break; 1639 } 1640 } 1641 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1642 Opts.Sanitize.SanitizeAddressFieldPadding = 1643 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1644 Opts.Sanitize.BlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist); 1645 } 1646 1647 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1648 FileManager &FileMgr, 1649 DiagnosticsEngine &Diags) { 1650 using namespace options; 1651 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1652 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1653 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1654 Opts.TokenCache = A->getValue(); 1655 else 1656 Opts.TokenCache = Opts.ImplicitPTHInclude; 1657 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1658 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1659 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1660 1661 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1662 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1663 ie = Args.filtered_end(); it != ie; ++it) { 1664 const Arg *A = *it; 1665 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1666 } 1667 1668 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1669 StringRef Value(A->getValue()); 1670 size_t Comma = Value.find(','); 1671 unsigned Bytes = 0; 1672 unsigned EndOfLine = 0; 1673 1674 if (Comma == StringRef::npos || 1675 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1676 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1677 Diags.Report(diag::err_drv_preamble_format); 1678 else { 1679 Opts.PrecompiledPreambleBytes.first = Bytes; 1680 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1681 } 1682 } 1683 1684 // Add macros from the command line. 1685 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1686 ie = Args.filtered_end(); it != ie; ++it) { 1687 if ((*it)->getOption().matches(OPT_D)) 1688 Opts.addMacroDef((*it)->getValue()); 1689 else 1690 Opts.addMacroUndef((*it)->getValue()); 1691 } 1692 1693 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1694 1695 // Add the ordered list of -includes. 1696 for (arg_iterator it = Args.filtered_begin(OPT_include), 1697 ie = Args.filtered_end(); it != ie; ++it) { 1698 const Arg *A = *it; 1699 Opts.Includes.push_back(A->getValue()); 1700 } 1701 1702 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1703 ie = Args.filtered_end(); it != ie; ++it) { 1704 const Arg *A = *it; 1705 Opts.ChainedIncludes.push_back(A->getValue()); 1706 } 1707 1708 // Include 'altivec.h' if -faltivec option present 1709 if (Args.hasArg(OPT_faltivec)) 1710 Opts.Includes.push_back("altivec.h"); 1711 1712 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1713 ie = Args.filtered_end(); it != ie; ++it) { 1714 const Arg *A = *it; 1715 std::pair<StringRef,StringRef> Split = 1716 StringRef(A->getValue()).split(';'); 1717 1718 if (Split.second.empty()) { 1719 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1720 continue; 1721 } 1722 1723 Opts.addRemappedFile(Split.first, Split.second); 1724 } 1725 1726 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1727 StringRef Name = A->getValue(); 1728 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1729 .Case("libc++", ARCXX_libcxx) 1730 .Case("libstdc++", ARCXX_libstdcxx) 1731 .Case("none", ARCXX_nolib) 1732 .Default(~0U); 1733 if (Library == ~0U) 1734 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1735 else 1736 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1737 } 1738 } 1739 1740 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1741 ArgList &Args, 1742 frontend::ActionKind Action) { 1743 using namespace options; 1744 1745 switch (Action) { 1746 case frontend::ASTDeclList: 1747 case frontend::ASTDump: 1748 case frontend::ASTPrint: 1749 case frontend::ASTView: 1750 case frontend::EmitAssembly: 1751 case frontend::EmitBC: 1752 case frontend::EmitHTML: 1753 case frontend::EmitLLVM: 1754 case frontend::EmitLLVMOnly: 1755 case frontend::EmitCodeGenOnly: 1756 case frontend::EmitObj: 1757 case frontend::FixIt: 1758 case frontend::GenerateModule: 1759 case frontend::GeneratePCH: 1760 case frontend::GeneratePTH: 1761 case frontend::ParseSyntaxOnly: 1762 case frontend::ModuleFileInfo: 1763 case frontend::VerifyPCH: 1764 case frontend::PluginAction: 1765 case frontend::PrintDeclContext: 1766 case frontend::RewriteObjC: 1767 case frontend::RewriteTest: 1768 case frontend::RunAnalysis: 1769 case frontend::MigrateSource: 1770 Opts.ShowCPP = 0; 1771 break; 1772 1773 case frontend::DumpRawTokens: 1774 case frontend::DumpTokens: 1775 case frontend::InitOnly: 1776 case frontend::PrintPreamble: 1777 case frontend::PrintPreprocessedInput: 1778 case frontend::RewriteMacros: 1779 case frontend::RunPreprocessorOnly: 1780 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1781 break; 1782 } 1783 1784 Opts.ShowComments = Args.hasArg(OPT_C); 1785 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1786 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1787 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1788 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1789 } 1790 1791 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1792 using namespace options; 1793 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1794 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1795 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 1796 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1797 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1798 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1799 1800 // Use the default target triple if unspecified. 1801 if (Opts.Triple.empty()) 1802 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1803 } 1804 1805 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1806 const char *const *ArgBegin, 1807 const char *const *ArgEnd, 1808 DiagnosticsEngine &Diags) { 1809 bool Success = true; 1810 1811 // Parse the arguments. 1812 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 1813 const unsigned IncludedFlagsBitmask = options::CC1Option; 1814 unsigned MissingArgIndex, MissingArgCount; 1815 std::unique_ptr<InputArgList> Args( 1816 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount, 1817 IncludedFlagsBitmask)); 1818 1819 // Check for missing argument error. 1820 if (MissingArgCount) { 1821 Diags.Report(diag::err_drv_missing_argument) 1822 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1823 Success = false; 1824 } 1825 1826 // Issue errors on unknown arguments. 1827 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1828 ie = Args->filtered_end(); it != ie; ++it) { 1829 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1830 Success = false; 1831 } 1832 1833 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 1834 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 1835 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1836 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 1837 && Success; 1838 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args); 1839 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1840 // FIXME: We shouldn't have to pass the DashX option around here 1841 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1842 ParseTargetArgs(Res.getTargetOpts(), *Args); 1843 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags, 1844 Res.getTargetOpts()) && Success; 1845 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1846 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1847 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 1848 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1849 Res.getLangOpts()->ObjCExceptions = 1; 1850 } 1851 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1852 // PCH file and find the original header name. Remove the need to do that in 1853 // ParsePreprocessorArgs and remove the FileManager 1854 // parameters from the function and the "FileManager.h" #include. 1855 FileManager FileMgr(Res.getFileSystemOpts()); 1856 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1857 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args, 1858 Res.getFrontendOpts().ProgramAction); 1859 return Success; 1860 } 1861 1862 namespace { 1863 1864 class ModuleSignature { 1865 SmallVector<uint64_t, 16> Data; 1866 unsigned CurBit; 1867 uint64_t CurValue; 1868 1869 public: 1870 ModuleSignature() : CurBit(0), CurValue(0) { } 1871 1872 void add(uint64_t Value, unsigned Bits); 1873 void add(StringRef Value); 1874 void flush(); 1875 1876 llvm::APInt getAsInteger() const; 1877 }; 1878 } 1879 1880 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1881 CurValue |= Value << CurBit; 1882 if (CurBit + NumBits < 64) { 1883 CurBit += NumBits; 1884 return; 1885 } 1886 1887 // Add the current word. 1888 Data.push_back(CurValue); 1889 1890 if (CurBit) 1891 CurValue = Value >> (64-CurBit); 1892 else 1893 CurValue = 0; 1894 CurBit = (CurBit+NumBits) & 63; 1895 } 1896 1897 void ModuleSignature::flush() { 1898 if (CurBit == 0) 1899 return; 1900 1901 Data.push_back(CurValue); 1902 CurBit = 0; 1903 CurValue = 0; 1904 } 1905 1906 void ModuleSignature::add(StringRef Value) { 1907 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1908 add(*I, 8); 1909 } 1910 1911 llvm::APInt ModuleSignature::getAsInteger() const { 1912 return llvm::APInt(Data.size() * 64, Data); 1913 } 1914 1915 std::string CompilerInvocation::getModuleHash() const { 1916 // Note: For QoI reasons, the things we use as a hash here should all be 1917 // dumped via the -module-info flag. 1918 using llvm::hash_code; 1919 using llvm::hash_value; 1920 using llvm::hash_combine; 1921 1922 // Start the signature with the compiler version. 1923 // FIXME: We'd rather use something more cryptographically sound than 1924 // CityHash, but this will do for now. 1925 hash_code code = hash_value(getClangFullRepositoryVersion()); 1926 1927 // Extend the signature with the language options 1928 #define LANGOPT(Name, Bits, Default, Description) \ 1929 code = hash_combine(code, LangOpts->Name); 1930 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1931 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 1932 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1933 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1934 #include "clang/Basic/LangOptions.def" 1935 1936 // Extend the signature with the target options. 1937 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 1938 TargetOpts->ABI); 1939 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 1940 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 1941 1942 // Extend the signature with preprocessor options. 1943 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 1944 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 1945 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 1946 1947 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 1948 I = getPreprocessorOpts().Macros.begin(), 1949 IEnd = getPreprocessorOpts().Macros.end(); 1950 I != IEnd; ++I) { 1951 // If we're supposed to ignore this macro for the purposes of modules, 1952 // don't put it into the hash. 1953 if (!hsOpts.ModulesIgnoreMacros.empty()) { 1954 // Check whether we're ignoring this macro. 1955 StringRef MacroDef = I->first; 1956 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 1957 continue; 1958 } 1959 1960 code = hash_combine(code, I->first, I->second); 1961 } 1962 1963 // Extend the signature with the sysroot. 1964 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 1965 hsOpts.UseStandardSystemIncludes, 1966 hsOpts.UseStandardCXXIncludes, 1967 hsOpts.UseLibcxx); 1968 code = hash_combine(code, hsOpts.ResourceDir); 1969 1970 // Extend the signature with the user build path. 1971 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 1972 1973 // Darwin-specific hack: if we have a sysroot, use the contents and 1974 // modification time of 1975 // $sysroot/System/Library/CoreServices/SystemVersion.plist 1976 // as part of the module hash. 1977 if (!hsOpts.Sysroot.empty()) { 1978 SmallString<128> systemVersionFile; 1979 systemVersionFile += hsOpts.Sysroot; 1980 llvm::sys::path::append(systemVersionFile, "System"); 1981 llvm::sys::path::append(systemVersionFile, "Library"); 1982 llvm::sys::path::append(systemVersionFile, "CoreServices"); 1983 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 1984 1985 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 1986 llvm::MemoryBuffer::getFile(systemVersionFile.str()); 1987 if (buffer) { 1988 code = hash_combine(code, buffer.get()->getBuffer()); 1989 1990 struct stat statBuf; 1991 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 1992 code = hash_combine(code, statBuf.st_mtime); 1993 } 1994 } 1995 1996 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 1997 } 1998 1999 namespace clang { 2000 2001 template<typename IntTy> 2002 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2003 IntTy Default, 2004 DiagnosticsEngine *Diags) { 2005 IntTy Res = Default; 2006 if (Arg *A = Args.getLastArg(Id)) { 2007 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2008 if (Diags) 2009 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2010 << A->getValue(); 2011 } 2012 } 2013 return Res; 2014 } 2015 2016 2017 // Declared in clang/Frontend/Utils.h. 2018 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2019 DiagnosticsEngine *Diags) { 2020 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2021 } 2022 2023 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2024 uint64_t Default, 2025 DiagnosticsEngine *Diags) { 2026 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2027 } 2028 2029 void BuryPointer(const void *Ptr) { 2030 // This function may be called only a small fixed amount of times per each 2031 // invocation, otherwise we do actually have a leak which we want to report. 2032 // If this function is called more than kGraveYardMaxSize times, the pointers 2033 // will not be properly buried and a leak detector will report a leak, which 2034 // is what we want in such case. 2035 static const size_t kGraveYardMaxSize = 16; 2036 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2037 static std::atomic<unsigned> GraveYardSize; 2038 unsigned Idx = GraveYardSize++; 2039 if (Idx >= kGraveYardMaxSize) 2040 return; 2041 GraveYard[Idx] = Ptr; 2042 } 2043 2044 IntrusiveRefCntPtr<vfs::FileSystem> 2045 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2046 DiagnosticsEngine &Diags) { 2047 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2048 return vfs::getRealFileSystem(); 2049 2050 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2051 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2052 // earlier vfs files are on the bottom 2053 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2054 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2055 llvm::MemoryBuffer::getFile(File); 2056 if (!Buffer) { 2057 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2058 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2059 } 2060 2061 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2062 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2063 if (!FS.get()) { 2064 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2065 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2066 } 2067 Overlay->pushOverlay(FS); 2068 } 2069 return Overlay; 2070 } 2071 } // end namespace clang 2072