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/SmallVector.h" 24 #include "llvm/ADT/STLExtras.h" 25 #include "llvm/ADT/StringExtras.h" 26 #include "llvm/ADT/StringSwitch.h" 27 #include "llvm/ADT/Triple.h" 28 #include "llvm/Option/Arg.h" 29 #include "llvm/Option/ArgList.h" 30 #include "llvm/Option/OptTable.h" 31 #include "llvm/Option/Option.h" 32 #include "llvm/Support/CodeGen.h" 33 #include "llvm/Support/ErrorHandling.h" 34 #include "llvm/Support/FileSystem.h" 35 #include "llvm/Support/Host.h" 36 #include "llvm/Support/Path.h" 37 #include "llvm/Support/Process.h" 38 #include <atomic> 39 #include <memory> 40 #include <sys/stat.h> 41 #include <system_error> 42 using namespace clang; 43 44 //===----------------------------------------------------------------------===// 45 // Initialization. 46 //===----------------------------------------------------------------------===// 47 48 CompilerInvocationBase::CompilerInvocationBase() 49 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 50 DiagnosticOpts(new DiagnosticOptions()), 51 HeaderSearchOpts(new HeaderSearchOptions()), 52 PreprocessorOpts(new PreprocessorOptions()) {} 53 54 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 55 : RefCountedBase<CompilerInvocation>(), 56 LangOpts(new LangOptions(*X.getLangOpts())), 57 TargetOpts(new TargetOptions(X.getTargetOpts())), 58 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 59 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 60 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 61 62 CompilerInvocationBase::~CompilerInvocationBase() {} 63 64 //===----------------------------------------------------------------------===// 65 // Deserialization (from args) 66 //===----------------------------------------------------------------------===// 67 68 using namespace clang::driver; 69 using namespace clang::driver::options; 70 using namespace llvm::opt; 71 72 // 73 74 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 75 DiagnosticsEngine &Diags) { 76 unsigned DefaultOpt = 0; 77 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 78 DefaultOpt = 2; 79 80 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 81 if (A->getOption().matches(options::OPT_O0)) 82 return 0; 83 84 if (A->getOption().matches(options::OPT_Ofast)) 85 return 3; 86 87 assert (A->getOption().matches(options::OPT_O)); 88 89 StringRef S(A->getValue()); 90 if (S == "s" || S == "z" || S.empty()) 91 return 2; 92 93 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 94 } 95 96 return DefaultOpt; 97 } 98 99 static unsigned getOptimizationLevelSize(ArgList &Args) { 100 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 101 if (A->getOption().matches(options::OPT_O)) { 102 switch (A->getValue()[0]) { 103 default: 104 return 0; 105 case 's': 106 return 1; 107 case 'z': 108 return 2; 109 } 110 } 111 } 112 return 0; 113 } 114 115 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 116 OptSpecifier GroupWithValue, 117 std::vector<std::string> &Diagnostics) { 118 for (Arg *A : Args.filtered(Group)) { 119 if (A->getOption().getKind() == Option::FlagClass) { 120 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 121 // its name (minus the "W" or "R" at the beginning) to the warning list. 122 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 123 } else if (A->getOption().matches(GroupWithValue)) { 124 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 125 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 126 } else { 127 // Otherwise, add its value (for OPT_W_Joined and similar). 128 for (const char *Arg : A->getValues()) 129 Diagnostics.push_back(Arg); 130 } 131 } 132 } 133 134 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 135 DiagnosticsEngine &Diags) { 136 using namespace options; 137 bool Success = true; 138 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 139 StringRef Name = A->getValue(); 140 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 141 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 142 .Case(CMDFLAG, NAME##Model) 143 #include "clang/StaticAnalyzer/Core/Analyses.def" 144 .Default(NumStores); 145 if (Value == NumStores) { 146 Diags.Report(diag::err_drv_invalid_value) 147 << A->getAsString(Args) << Name; 148 Success = false; 149 } else { 150 Opts.AnalysisStoreOpt = Value; 151 } 152 } 153 154 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 155 StringRef Name = A->getValue(); 156 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 157 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 158 .Case(CMDFLAG, NAME##Model) 159 #include "clang/StaticAnalyzer/Core/Analyses.def" 160 .Default(NumConstraints); 161 if (Value == NumConstraints) { 162 Diags.Report(diag::err_drv_invalid_value) 163 << A->getAsString(Args) << Name; 164 Success = false; 165 } else { 166 Opts.AnalysisConstraintsOpt = Value; 167 } 168 } 169 170 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 171 StringRef Name = A->getValue(); 172 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 173 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 174 .Case(CMDFLAG, PD_##NAME) 175 #include "clang/StaticAnalyzer/Core/Analyses.def" 176 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 177 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 178 Diags.Report(diag::err_drv_invalid_value) 179 << A->getAsString(Args) << Name; 180 Success = false; 181 } else { 182 Opts.AnalysisDiagOpt = Value; 183 } 184 } 185 186 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 187 StringRef Name = A->getValue(); 188 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 189 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 190 .Case(CMDFLAG, NAME) 191 #include "clang/StaticAnalyzer/Core/Analyses.def" 192 .Default(NumPurgeModes); 193 if (Value == NumPurgeModes) { 194 Diags.Report(diag::err_drv_invalid_value) 195 << A->getAsString(Args) << Name; 196 Success = false; 197 } else { 198 Opts.AnalysisPurgeOpt = Value; 199 } 200 } 201 202 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 203 StringRef Name = A->getValue(); 204 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 205 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 206 .Case(CMDFLAG, NAME) 207 #include "clang/StaticAnalyzer/Core/Analyses.def" 208 .Default(NumInliningModes); 209 if (Value == NumInliningModes) { 210 Diags.Report(diag::err_drv_invalid_value) 211 << A->getAsString(Args) << Name; 212 Success = false; 213 } else { 214 Opts.InliningMode = Value; 215 } 216 } 217 218 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 219 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 220 221 Opts.visualizeExplodedGraphWithGraphViz = 222 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 223 Opts.visualizeExplodedGraphWithUbiGraph = 224 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 225 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 226 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 227 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 228 Opts.AnalyzeNestedBlocks = 229 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 230 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 231 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 232 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 233 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 234 Opts.maxBlockVisitOnPath = 235 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 236 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 237 Opts.InlineMaxStackDepth = 238 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 239 Opts.InlineMaxStackDepth, Diags); 240 241 Opts.CheckersControlList.clear(); 242 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 243 OPT_analyzer_disable_checker), 244 ie = Args.filtered_end(); it != ie; ++it) { 245 const Arg *A = *it; 246 A->claim(); 247 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 248 // We can have a list of comma separated checker names, e.g: 249 // '-analyzer-checker=cocoa,unix' 250 StringRef checkerList = A->getValue(); 251 SmallVector<StringRef, 4> checkers; 252 checkerList.split(checkers, ","); 253 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 254 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 255 } 256 257 // Go through the analyzer configuration options. 258 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 259 ie = Args.filtered_end(); it != ie; ++it) { 260 const Arg *A = *it; 261 A->claim(); 262 // We can have a list of comma separated config names, e.g: 263 // '-analyzer-config key1=val1,key2=val2' 264 StringRef configList = A->getValue(); 265 SmallVector<StringRef, 4> configVals; 266 configList.split(configVals, ","); 267 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 268 StringRef key, val; 269 std::tie(key, val) = configVals[i].split("="); 270 if (val.empty()) { 271 Diags.Report(SourceLocation(), 272 diag::err_analyzer_config_no_value) << configVals[i]; 273 Success = false; 274 break; 275 } 276 if (val.find('=') != StringRef::npos) { 277 Diags.Report(SourceLocation(), 278 diag::err_analyzer_config_multiple_values) 279 << configVals[i]; 280 Success = false; 281 break; 282 } 283 Opts.Config[key] = val; 284 } 285 } 286 287 return Success; 288 } 289 290 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 291 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 292 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 293 return true; 294 } 295 296 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 297 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 298 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 299 } 300 301 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 302 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 303 StringRef Value = A->getValue(); 304 if (Value == "small" || Value == "kernel" || Value == "medium" || 305 Value == "large") 306 return Value; 307 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 308 } 309 return "default"; 310 } 311 312 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 313 /// It returns a pointer to the newly generated Regex instance. 314 static std::shared_ptr<llvm::Regex> 315 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 316 Arg *RpassArg) { 317 StringRef Val = RpassArg->getValue(); 318 std::string RegexError; 319 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 320 if (!Pattern->isValid(RegexError)) { 321 Diags.Report(diag::err_drv_optimization_remark_pattern) 322 << RegexError << RpassArg->getAsString(Args); 323 Pattern.reset(); 324 } 325 return Pattern; 326 } 327 328 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 329 DiagnosticsEngine &Diags, 330 const TargetOptions &TargetOpts) { 331 using namespace options; 332 bool Success = true; 333 334 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 335 // TODO: This could be done in Driver 336 unsigned MaxOptLevel = 3; 337 if (OptimizationLevel > MaxOptLevel) { 338 // If the optimization level is not supported, fall back on the default 339 // optimization 340 Diags.Report(diag::warn_drv_optimization_value) 341 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 342 OptimizationLevel = MaxOptLevel; 343 } 344 Opts.OptimizationLevel = OptimizationLevel; 345 346 // We must always run at least the always inlining pass. 347 Opts.setInlining( 348 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 349 : CodeGenOptions::OnlyAlwaysInlining); 350 // -fno-inline-functions overrides OptimizationLevel > 1. 351 Opts.NoInline = Args.hasArg(OPT_fno_inline); 352 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 353 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 354 355 if (Args.hasArg(OPT_gline_tables_only)) { 356 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 357 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) || 358 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) { 359 bool Default = false; 360 // Until dtrace (via CTF) and LLDB can deal with distributed debug info, 361 // Darwin and FreeBSD default to standalone/full debug info. 362 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() || 363 llvm::Triple(TargetOpts.Triple).isOSFreeBSD()) 364 Default = true; 365 366 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default)) 367 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 368 else 369 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 370 } 371 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 372 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 373 if (Args.hasArg(OPT_gdwarf_2)) 374 Opts.DwarfVersion = 2; 375 else if (Args.hasArg(OPT_gdwarf_3)) 376 Opts.DwarfVersion = 3; 377 else if (Args.hasArg(OPT_gdwarf_4)) 378 Opts.DwarfVersion = 4; 379 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo) 380 // Default Dwarf version is 4 if we are generating debug information. 381 Opts.DwarfVersion = 4; 382 383 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 384 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 385 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 386 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 387 OPT_fuse_register_sized_bitfield_access); 388 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 389 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 390 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 391 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 392 Opts.NoCommon = Args.hasArg(OPT_fno_common); 393 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 394 Opts.OptimizeSize = getOptimizationLevelSize(Args); 395 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 396 Args.hasArg(OPT_ffreestanding)); 397 Opts.UnrollLoops = 398 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 399 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 400 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 401 402 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 403 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 404 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 405 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate); 406 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 407 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping); 408 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 409 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 410 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 411 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 412 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 413 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 414 Opts.CodeModel = getCodeModel(Args, Diags); 415 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 416 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 417 Opts.DisableFree = Args.hasArg(OPT_disable_free); 418 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 419 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 420 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 421 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 422 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 423 Args.hasArg(OPT_cl_finite_math_only) || 424 Args.hasArg(OPT_cl_fast_relaxed_math)); 425 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 426 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 427 Args.hasArg(OPT_cl_finite_math_only) || 428 Args.hasArg(OPT_cl_fast_relaxed_math)); 429 Opts.NoSignedZeros = Args.hasArg(OPT_cl_no_signed_zeros); 430 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 431 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 432 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 433 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 434 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 435 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 436 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 437 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 438 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 439 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 440 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 441 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 442 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 443 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 444 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 445 Args.hasArg(OPT_cl_fast_relaxed_math); 446 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 447 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 448 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 449 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 450 Diags.Report(diag::err_drv_invalid_value) 451 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 452 << Opts.ThreadModel; 453 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 454 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 455 456 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 457 OPT_fno_function_sections, false); 458 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 459 OPT_fno_data_sections, false); 460 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 461 462 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 463 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 464 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 465 466 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 467 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 468 Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover); 469 470 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 471 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 472 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 473 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 474 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 475 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 476 Opts.CoverageNoFunctionNamesInData = 477 Args.hasArg(OPT_coverage_no_function_names_in_data); 478 if (Args.hasArg(OPT_coverage_version_EQ)) { 479 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 480 if (CoverageVersion.size() != 4) { 481 Diags.Report(diag::err_drv_invalid_value) 482 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 483 << CoverageVersion; 484 } else { 485 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 486 } 487 } 488 } 489 490 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 491 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 492 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 493 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 494 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 495 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 496 Opts.SanitizeCoverage = 497 getLastArgIntValue(Args, OPT_fsanitize_coverage, 0, Diags); 498 Opts.SanitizeMemoryTrackOrigins = 499 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 500 Opts.SanitizeUndefinedTrapOnError = 501 Args.hasArg(OPT_fsanitize_undefined_trap_on_error); 502 Opts.SSPBufferSize = 503 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 504 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 505 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 506 StringRef Val = A->getValue(); 507 unsigned StackAlignment = Opts.StackAlignment; 508 Val.getAsInteger(10, StackAlignment); 509 Opts.StackAlignment = StackAlignment; 510 } 511 512 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 513 StringRef Name = A->getValue(); 514 unsigned Method = llvm::StringSwitch<unsigned>(Name) 515 .Case("legacy", CodeGenOptions::Legacy) 516 .Case("non-legacy", CodeGenOptions::NonLegacy) 517 .Case("mixed", CodeGenOptions::Mixed) 518 .Default(~0U); 519 if (Method == ~0U) { 520 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 521 Success = false; 522 } else { 523 Opts.setObjCDispatchMethod( 524 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 525 } 526 } 527 528 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 529 StringRef Name = A->getValue(); 530 unsigned Model = llvm::StringSwitch<unsigned>(Name) 531 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 532 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 533 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 534 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 535 .Default(~0U); 536 if (Model == ~0U) { 537 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 538 Success = false; 539 } else { 540 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 541 } 542 } 543 544 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 545 StringRef Val = A->getValue(); 546 if (Val == "fast") 547 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 548 else if (Val == "on") 549 Opts.setFPContractMode(CodeGenOptions::FPC_On); 550 else if (Val == "off") 551 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 552 else 553 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 554 } 555 556 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 557 if (A->getOption().matches(OPT_fpcc_struct_return)) { 558 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 559 } else { 560 assert(A->getOption().matches(OPT_freg_struct_return)); 561 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 562 } 563 } 564 565 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 566 bool NeedLocTracking = false; 567 568 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 569 Opts.OptimizationRemarkPattern = 570 GenerateOptimizationRemarkRegex(Diags, Args, A); 571 NeedLocTracking = true; 572 } 573 574 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 575 Opts.OptimizationRemarkMissedPattern = 576 GenerateOptimizationRemarkRegex(Diags, Args, A); 577 NeedLocTracking = true; 578 } 579 580 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 581 Opts.OptimizationRemarkAnalysisPattern = 582 GenerateOptimizationRemarkRegex(Diags, Args, A); 583 NeedLocTracking = true; 584 } 585 586 // If the user requested to use a sample profile for PGO, then the 587 // backend will need to track source location information so the profile 588 // can be incorporated into the IR. 589 if (!Opts.SampleProfileFile.empty()) 590 NeedLocTracking = true; 591 592 // If the user requested a flag that requires source locations available in 593 // the backend, make sure that the backend tracks source location information. 594 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 595 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 596 597 return Success; 598 } 599 600 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 601 ArgList &Args) { 602 using namespace options; 603 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 604 Opts.Targets = Args.getAllArgValues(OPT_MT); 605 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 606 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 607 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 608 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 609 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 610 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 611 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 612 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 613 Opts.ModuleDependencyOutputDir = 614 Args.getLastArgValue(OPT_module_dependency_dir); 615 } 616 617 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 618 DiagnosticsEngine *Diags) { 619 using namespace options; 620 bool Success = true; 621 622 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 623 if (Arg *A = 624 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 625 Opts.DiagnosticSerializationFile = A->getValue(); 626 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 627 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 628 Opts.Pedantic = Args.hasArg(OPT_pedantic); 629 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 630 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 631 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 632 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 633 OPT_fno_show_column, 634 /*Default=*/true); 635 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 636 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 637 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 638 639 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 640 641 // Default behavior is to not to show note include stacks. 642 Opts.ShowNoteIncludeStack = false; 643 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 644 OPT_fno_diagnostics_show_note_include_stack)) 645 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 646 Opts.ShowNoteIncludeStack = true; 647 648 StringRef ShowOverloads = 649 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 650 if (ShowOverloads == "best") 651 Opts.setShowOverloads(Ovl_Best); 652 else if (ShowOverloads == "all") 653 Opts.setShowOverloads(Ovl_All); 654 else { 655 Success = false; 656 if (Diags) 657 Diags->Report(diag::err_drv_invalid_value) 658 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 659 << ShowOverloads; 660 } 661 662 StringRef ShowCategory = 663 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 664 if (ShowCategory == "none") 665 Opts.ShowCategories = 0; 666 else if (ShowCategory == "id") 667 Opts.ShowCategories = 1; 668 else if (ShowCategory == "name") 669 Opts.ShowCategories = 2; 670 else { 671 Success = false; 672 if (Diags) 673 Diags->Report(diag::err_drv_invalid_value) 674 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 675 << ShowCategory; 676 } 677 678 StringRef Format = 679 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 680 if (Format == "clang") 681 Opts.setFormat(DiagnosticOptions::Clang); 682 else if (Format == "msvc") 683 Opts.setFormat(DiagnosticOptions::Msvc); 684 else if (Format == "msvc-fallback") { 685 Opts.setFormat(DiagnosticOptions::Msvc); 686 Opts.CLFallbackMode = true; 687 } else if (Format == "vi") 688 Opts.setFormat(DiagnosticOptions::Vi); 689 else { 690 Success = false; 691 if (Diags) 692 Diags->Report(diag::err_drv_invalid_value) 693 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 694 << Format; 695 } 696 697 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 698 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 699 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 700 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 701 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 702 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 703 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 704 Opts.MacroBacktraceLimit = 705 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 706 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 707 Opts.TemplateBacktraceLimit = getLastArgIntValue( 708 Args, OPT_ftemplate_backtrace_limit, 709 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 710 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 711 Args, OPT_fconstexpr_backtrace_limit, 712 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 713 Opts.SpellCheckingLimit = getLastArgIntValue( 714 Args, OPT_fspell_checking_limit, 715 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 716 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 717 DiagnosticOptions::DefaultTabStop, Diags); 718 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 719 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 720 if (Diags) 721 Diags->Report(diag::warn_ignoring_ftabstop_value) 722 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 723 } 724 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 725 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 726 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 727 728 return Success; 729 } 730 731 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 732 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 733 } 734 735 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 736 DiagnosticsEngine &Diags) { 737 using namespace options; 738 Opts.ProgramAction = frontend::ParseSyntaxOnly; 739 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 740 switch (A->getOption().getID()) { 741 default: 742 llvm_unreachable("Invalid option in group!"); 743 case OPT_ast_list: 744 Opts.ProgramAction = frontend::ASTDeclList; break; 745 case OPT_ast_dump: 746 case OPT_ast_dump_lookups: 747 Opts.ProgramAction = frontend::ASTDump; break; 748 case OPT_ast_print: 749 Opts.ProgramAction = frontend::ASTPrint; break; 750 case OPT_ast_view: 751 Opts.ProgramAction = frontend::ASTView; break; 752 case OPT_dump_raw_tokens: 753 Opts.ProgramAction = frontend::DumpRawTokens; break; 754 case OPT_dump_tokens: 755 Opts.ProgramAction = frontend::DumpTokens; break; 756 case OPT_S: 757 Opts.ProgramAction = frontend::EmitAssembly; break; 758 case OPT_emit_llvm_bc: 759 Opts.ProgramAction = frontend::EmitBC; break; 760 case OPT_emit_html: 761 Opts.ProgramAction = frontend::EmitHTML; break; 762 case OPT_emit_llvm: 763 Opts.ProgramAction = frontend::EmitLLVM; break; 764 case OPT_emit_llvm_only: 765 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 766 case OPT_emit_codegen_only: 767 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 768 case OPT_emit_obj: 769 Opts.ProgramAction = frontend::EmitObj; break; 770 case OPT_fixit_EQ: 771 Opts.FixItSuffix = A->getValue(); 772 // fall-through! 773 case OPT_fixit: 774 Opts.ProgramAction = frontend::FixIt; break; 775 case OPT_emit_module: 776 Opts.ProgramAction = frontend::GenerateModule; break; 777 case OPT_emit_pch: 778 Opts.ProgramAction = frontend::GeneratePCH; break; 779 case OPT_emit_pth: 780 Opts.ProgramAction = frontend::GeneratePTH; break; 781 case OPT_init_only: 782 Opts.ProgramAction = frontend::InitOnly; break; 783 case OPT_fsyntax_only: 784 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 785 case OPT_module_file_info: 786 Opts.ProgramAction = frontend::ModuleFileInfo; break; 787 case OPT_verify_pch: 788 Opts.ProgramAction = frontend::VerifyPCH; break; 789 case OPT_print_decl_contexts: 790 Opts.ProgramAction = frontend::PrintDeclContext; break; 791 case OPT_print_preamble: 792 Opts.ProgramAction = frontend::PrintPreamble; break; 793 case OPT_E: 794 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 795 case OPT_rewrite_macros: 796 Opts.ProgramAction = frontend::RewriteMacros; break; 797 case OPT_rewrite_objc: 798 Opts.ProgramAction = frontend::RewriteObjC; break; 799 case OPT_rewrite_test: 800 Opts.ProgramAction = frontend::RewriteTest; break; 801 case OPT_analyze: 802 Opts.ProgramAction = frontend::RunAnalysis; break; 803 case OPT_migrate: 804 Opts.ProgramAction = frontend::MigrateSource; break; 805 case OPT_Eonly: 806 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 807 } 808 } 809 810 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 811 Opts.Plugins.push_back(A->getValue(0)); 812 Opts.ProgramAction = frontend::PluginAction; 813 Opts.ActionName = A->getValue(); 814 815 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 816 end = Args.filtered_end(); it != end; ++it) { 817 if ((*it)->getValue(0) == Opts.ActionName) 818 Opts.PluginArgs.push_back((*it)->getValue(1)); 819 } 820 } 821 822 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 823 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 824 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 825 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 826 end = Args.filtered_end(); it != end; ++it) { 827 if ((*it)->getValue(0) == Opts.AddPluginActions[i]) 828 Opts.AddPluginArgs[i].push_back((*it)->getValue(1)); 829 } 830 } 831 832 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 833 Opts.CodeCompletionAt = 834 ParsedSourceLocation::FromString(A->getValue()); 835 if (Opts.CodeCompletionAt.FileName.empty()) 836 Diags.Report(diag::err_drv_invalid_value) 837 << A->getAsString(Args) << A->getValue(); 838 } 839 Opts.DisableFree = Args.hasArg(OPT_disable_free); 840 841 Opts.OutputFile = Args.getLastArgValue(OPT_o); 842 Opts.Plugins = Args.getAllArgValues(OPT_load); 843 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 844 Opts.ShowHelp = Args.hasArg(OPT_help); 845 Opts.ShowStats = Args.hasArg(OPT_print_stats); 846 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 847 Opts.ShowVersion = Args.hasArg(OPT_version); 848 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 849 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 850 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 851 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 852 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 853 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 854 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 855 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 856 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 857 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 858 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 859 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 860 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 861 862 Opts.CodeCompleteOpts.IncludeMacros 863 = Args.hasArg(OPT_code_completion_macros); 864 Opts.CodeCompleteOpts.IncludeCodePatterns 865 = Args.hasArg(OPT_code_completion_patterns); 866 Opts.CodeCompleteOpts.IncludeGlobals 867 = !Args.hasArg(OPT_no_code_completion_globals); 868 Opts.CodeCompleteOpts.IncludeBriefComments 869 = Args.hasArg(OPT_code_completion_brief_comments); 870 871 Opts.OverrideRecordLayoutsFile 872 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 873 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 874 OPT_arcmt_modify, 875 OPT_arcmt_migrate)) { 876 switch (A->getOption().getID()) { 877 default: 878 llvm_unreachable("missed a case"); 879 case OPT_arcmt_check: 880 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 881 break; 882 case OPT_arcmt_modify: 883 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 884 break; 885 case OPT_arcmt_migrate: 886 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 887 break; 888 } 889 } 890 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 891 Opts.ARCMTMigrateReportOut 892 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 893 Opts.ARCMTMigrateEmitARCErrors 894 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 895 896 if (Args.hasArg(OPT_objcmt_migrate_literals)) 897 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 898 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 899 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 900 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 901 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 902 if (Args.hasArg(OPT_objcmt_migrate_property)) 903 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 904 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 905 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 906 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 907 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 908 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 909 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 910 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 911 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 912 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 913 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 914 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 915 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 916 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 917 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 918 if (Args.hasArg(OPT_objcmt_atomic_property)) 919 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 920 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 921 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 922 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 923 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 924 if (Args.hasArg(OPT_objcmt_migrate_all)) 925 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 926 927 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 928 929 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 930 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 931 Diags.Report(diag::err_drv_argument_not_allowed_with) 932 << "ARC migration" << "ObjC migration"; 933 } 934 935 InputKind DashX = IK_None; 936 if (const Arg *A = Args.getLastArg(OPT_x)) { 937 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 938 .Case("c", IK_C) 939 .Case("cl", IK_OpenCL) 940 .Case("cuda", IK_CUDA) 941 .Case("c++", IK_CXX) 942 .Case("objective-c", IK_ObjC) 943 .Case("objective-c++", IK_ObjCXX) 944 .Case("cpp-output", IK_PreprocessedC) 945 .Case("assembler-with-cpp", IK_Asm) 946 .Case("c++-cpp-output", IK_PreprocessedCXX) 947 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 948 .Case("objc-cpp-output", IK_PreprocessedObjC) 949 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 950 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 951 .Case("c-header", IK_C) 952 .Case("cl-header", IK_OpenCL) 953 .Case("objective-c-header", IK_ObjC) 954 .Case("c++-header", IK_CXX) 955 .Case("objective-c++-header", IK_ObjCXX) 956 .Cases("ast", "pcm", IK_AST) 957 .Case("ir", IK_LLVM_IR) 958 .Default(IK_None); 959 if (DashX == IK_None) 960 Diags.Report(diag::err_drv_invalid_value) 961 << A->getAsString(Args) << A->getValue(); 962 } 963 964 // '-' is the default input if none is given. 965 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 966 Opts.Inputs.clear(); 967 if (Inputs.empty()) 968 Inputs.push_back("-"); 969 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 970 InputKind IK = DashX; 971 if (IK == IK_None) { 972 IK = FrontendOptions::getInputKindForExtension( 973 StringRef(Inputs[i]).rsplit('.').second); 974 // FIXME: Remove this hack. 975 if (i == 0) 976 DashX = IK; 977 } 978 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 979 } 980 981 return DashX; 982 } 983 984 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 985 void *MainAddr) { 986 std::string ClangExecutable = 987 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 988 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 989 990 // Compute the path to the resource directory. 991 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 992 SmallString<128> P(Dir); 993 if (ClangResourceDir != "") { 994 llvm::sys::path::append(P, ClangResourceDir); 995 } else { 996 StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX); 997 llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang", 998 CLANG_VERSION_STRING); 999 } 1000 1001 return P.str(); 1002 } 1003 1004 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1005 using namespace options; 1006 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1007 Opts.Verbose = Args.hasArg(OPT_v); 1008 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1009 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1010 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1011 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1012 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1013 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1014 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1015 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1016 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1017 // -fmodules implies -fmodule-maps 1018 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules); 1019 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1020 Opts.ModuleCachePruneInterval = 1021 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1022 Opts.ModuleCachePruneAfter = 1023 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1024 Opts.ModulesValidateOncePerBuildSession = 1025 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1026 Opts.BuildSessionTimestamp = 1027 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1028 Opts.ModulesValidateSystemHeaders = 1029 Args.hasArg(OPT_fmodules_validate_system_headers); 1030 1031 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro), 1032 ie = Args.filtered_end(); 1033 it != ie; ++it) { 1034 StringRef MacroDef = (*it)->getValue(); 1035 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1036 } 1037 1038 // Add -I..., -F..., and -index-header-map options in order. 1039 bool IsIndexHeaderMap = false; 1040 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1041 OPT_index_header_map), 1042 ie = Args.filtered_end(); it != ie; ++it) { 1043 if ((*it)->getOption().matches(OPT_index_header_map)) { 1044 // -index-header-map applies to the next -I or -F. 1045 IsIndexHeaderMap = true; 1046 continue; 1047 } 1048 1049 frontend::IncludeDirGroup Group 1050 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1051 1052 Opts.AddPath((*it)->getValue(), Group, 1053 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true); 1054 IsIndexHeaderMap = false; 1055 } 1056 1057 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1058 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1059 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1060 OPT_iwithprefixbefore), 1061 ie = Args.filtered_end(); it != ie; ++it) { 1062 const Arg *A = *it; 1063 if (A->getOption().matches(OPT_iprefix)) 1064 Prefix = A->getValue(); 1065 else if (A->getOption().matches(OPT_iwithprefix)) 1066 Opts.AddPath(Prefix.str() + A->getValue(), 1067 frontend::After, false, true); 1068 else 1069 Opts.AddPath(Prefix.str() + A->getValue(), 1070 frontend::Angled, false, true); 1071 } 1072 1073 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1074 ie = Args.filtered_end(); it != ie; ++it) 1075 Opts.AddPath((*it)->getValue(), frontend::After, false, true); 1076 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1077 ie = Args.filtered_end(); it != ie; ++it) 1078 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true); 1079 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1080 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1081 Opts.AddPath((*it)->getValue(), frontend::System, false, 1082 !(*it)->getOption().matches(OPT_iwithsysroot)); 1083 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1084 ie = Args.filtered_end(); it != ie; ++it) 1085 Opts.AddPath((*it)->getValue(), frontend::System, true, true); 1086 1087 // Add the paths for the various language specific isystem flags. 1088 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1089 ie = Args.filtered_end(); it != ie; ++it) 1090 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true); 1091 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1092 ie = Args.filtered_end(); it != ie; ++it) 1093 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true); 1094 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1095 ie = Args.filtered_end(); it != ie; ++it) 1096 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true); 1097 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1098 ie = Args.filtered_end(); it != ie; ++it) 1099 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true); 1100 1101 // Add the internal paths from a driver that detects standard include paths. 1102 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1103 OPT_internal_externc_isystem), 1104 E = Args.filtered_end(); 1105 I != E; ++I) { 1106 frontend::IncludeDirGroup Group = frontend::System; 1107 if ((*I)->getOption().matches(OPT_internal_externc_isystem)) 1108 Group = frontend::ExternCSystem; 1109 Opts.AddPath((*I)->getValue(), Group, false, true); 1110 } 1111 1112 // Add the path prefixes which are implicitly treated as being system headers. 1113 for (arg_iterator I = Args.filtered_begin(OPT_system_header_prefix, 1114 OPT_no_system_header_prefix), 1115 E = Args.filtered_end(); 1116 I != E; ++I) 1117 Opts.AddSystemHeaderPrefix( 1118 (*I)->getValue(), (*I)->getOption().matches(OPT_system_header_prefix)); 1119 1120 for (arg_iterator I = Args.filtered_begin(OPT_ivfsoverlay), 1121 E = Args.filtered_end(); I != E; ++I) 1122 Opts.AddVFSOverlayFile((*I)->getValue()); 1123 } 1124 1125 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1126 LangStandard::Kind LangStd) { 1127 // Set some properties which depend solely on the input kind; it would be nice 1128 // to move these to the language standard, and have the driver resolve the 1129 // input kind + language standard. 1130 if (IK == IK_Asm) { 1131 Opts.AsmPreprocessor = 1; 1132 } else if (IK == IK_ObjC || 1133 IK == IK_ObjCXX || 1134 IK == IK_PreprocessedObjC || 1135 IK == IK_PreprocessedObjCXX) { 1136 Opts.ObjC1 = Opts.ObjC2 = 1; 1137 } 1138 1139 if (LangStd == LangStandard::lang_unspecified) { 1140 // Based on the base language, pick one. 1141 switch (IK) { 1142 case IK_None: 1143 case IK_AST: 1144 case IK_LLVM_IR: 1145 llvm_unreachable("Invalid input kind!"); 1146 case IK_OpenCL: 1147 LangStd = LangStandard::lang_opencl; 1148 break; 1149 case IK_CUDA: 1150 LangStd = LangStandard::lang_cuda; 1151 break; 1152 case IK_Asm: 1153 case IK_C: 1154 case IK_PreprocessedC: 1155 case IK_ObjC: 1156 case IK_PreprocessedObjC: 1157 LangStd = LangStandard::lang_gnu11; 1158 break; 1159 case IK_CXX: 1160 case IK_PreprocessedCXX: 1161 case IK_ObjCXX: 1162 case IK_PreprocessedObjCXX: 1163 LangStd = LangStandard::lang_gnucxx98; 1164 break; 1165 } 1166 } 1167 1168 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1169 Opts.LineComment = Std.hasLineComments(); 1170 Opts.C99 = Std.isC99(); 1171 Opts.C11 = Std.isC11(); 1172 Opts.CPlusPlus = Std.isCPlusPlus(); 1173 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1174 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1175 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1176 Opts.Digraphs = Std.hasDigraphs(); 1177 Opts.GNUMode = Std.isGNUMode(); 1178 Opts.GNUInline = !Std.isC99(); 1179 Opts.HexFloats = Std.hasHexFloats(); 1180 Opts.ImplicitInt = Std.hasImplicitInt(); 1181 1182 // Set OpenCL Version. 1183 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1184 if (LangStd == LangStandard::lang_opencl) 1185 Opts.OpenCLVersion = 100; 1186 else if (LangStd == LangStandard::lang_opencl11) 1187 Opts.OpenCLVersion = 110; 1188 else if (LangStd == LangStandard::lang_opencl12) 1189 Opts.OpenCLVersion = 120; 1190 else if (LangStd == LangStandard::lang_opencl20) 1191 Opts.OpenCLVersion = 200; 1192 1193 // OpenCL has some additional defaults. 1194 if (Opts.OpenCL) { 1195 Opts.AltiVec = 0; 1196 Opts.CXXOperatorNames = 1; 1197 Opts.LaxVectorConversions = 0; 1198 Opts.DefaultFPContract = 1; 1199 Opts.NativeHalfType = 1; 1200 } 1201 1202 Opts.CUDA = LangStd == LangStandard::lang_cuda || IK == IK_CUDA; 1203 1204 // OpenCL and C++ both have bool, true, false keywords. 1205 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1206 1207 // OpenCL has half keyword 1208 Opts.Half = Opts.OpenCL; 1209 1210 // C++ has wchar_t keyword. 1211 Opts.WChar = Opts.CPlusPlus; 1212 1213 Opts.GNUKeywords = Opts.GNUMode; 1214 Opts.CXXOperatorNames = Opts.CPlusPlus; 1215 1216 Opts.DollarIdents = !Opts.AsmPreprocessor; 1217 1218 // C++14 onwards has sized global deallocation functions. 1219 Opts.SizedDeallocation = Opts.CPlusPlus14; 1220 } 1221 1222 /// Attempt to parse a visibility value out of the given argument. 1223 static Visibility parseVisibility(Arg *arg, ArgList &args, 1224 DiagnosticsEngine &diags) { 1225 StringRef value = arg->getValue(); 1226 if (value == "default") { 1227 return DefaultVisibility; 1228 } else if (value == "hidden") { 1229 return HiddenVisibility; 1230 } else if (value == "protected") { 1231 // FIXME: diagnose if target does not support protected visibility 1232 return ProtectedVisibility; 1233 } 1234 1235 diags.Report(diag::err_drv_invalid_value) 1236 << arg->getAsString(args) << value; 1237 return DefaultVisibility; 1238 } 1239 1240 static unsigned parseMSCVersion(ArgList &Args, DiagnosticsEngine &Diags) { 1241 auto Arg = Args.getLastArg(OPT_fms_compatibility_version); 1242 if (!Arg) 1243 return 0; 1244 1245 // The MSC versioning scheme involves four versioning components: 1246 // - Major 1247 // - Minor 1248 // - Build 1249 // - Patch 1250 // 1251 // We accept either the old style (_MSC_VER) value, or a _MSC_FULL_VER value. 1252 // Additionally, the value may be provided in the form of a more readable 1253 // MM.mm.bbbbb.pp version. 1254 // 1255 // Unfortunately, due to the bit-width limitations, we cannot currently encode 1256 // the value for the patch level. 1257 1258 unsigned VC[4] = {0}; 1259 StringRef Value = Arg->getValue(); 1260 SmallVector<StringRef, 4> Components; 1261 1262 Value.split(Components, ".", llvm::array_lengthof(VC)); 1263 for (unsigned CI = 0, 1264 CE = std::min(Components.size(), llvm::array_lengthof(VC)); 1265 CI < CE; ++CI) { 1266 if (Components[CI].getAsInteger(10, VC[CI])) { 1267 Diags.Report(diag::err_drv_invalid_value) 1268 << Arg->getAsString(Args) << Value; 1269 return 0; 1270 } 1271 } 1272 1273 // FIXME we cannot encode the patch level 1274 return VC[0] * 10000000 + VC[1] * 100000 + VC[2]; 1275 } 1276 1277 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1278 DiagnosticsEngine &Diags) { 1279 // FIXME: Cleanup per-file based stuff. 1280 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1281 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1282 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1283 #define LANGSTANDARD(id, name, desc, features) \ 1284 .Case(name, LangStandard::lang_##id) 1285 #include "clang/Frontend/LangStandards.def" 1286 .Default(LangStandard::lang_unspecified); 1287 if (LangStd == LangStandard::lang_unspecified) 1288 Diags.Report(diag::err_drv_invalid_value) 1289 << A->getAsString(Args) << A->getValue(); 1290 else { 1291 // Valid standard, check to make sure language and standard are 1292 // compatible. 1293 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1294 switch (IK) { 1295 case IK_C: 1296 case IK_ObjC: 1297 case IK_PreprocessedC: 1298 case IK_PreprocessedObjC: 1299 if (!(Std.isC89() || Std.isC99())) 1300 Diags.Report(diag::err_drv_argument_not_allowed_with) 1301 << A->getAsString(Args) << "C/ObjC"; 1302 break; 1303 case IK_CXX: 1304 case IK_ObjCXX: 1305 case IK_PreprocessedCXX: 1306 case IK_PreprocessedObjCXX: 1307 if (!Std.isCPlusPlus()) 1308 Diags.Report(diag::err_drv_argument_not_allowed_with) 1309 << A->getAsString(Args) << "C++/ObjC++"; 1310 break; 1311 case IK_OpenCL: 1312 if (!Std.isC99()) 1313 Diags.Report(diag::err_drv_argument_not_allowed_with) 1314 << A->getAsString(Args) << "OpenCL"; 1315 break; 1316 case IK_CUDA: 1317 if (!Std.isCPlusPlus()) 1318 Diags.Report(diag::err_drv_argument_not_allowed_with) 1319 << A->getAsString(Args) << "CUDA"; 1320 break; 1321 default: 1322 break; 1323 } 1324 } 1325 } 1326 1327 // -cl-std only applies for OpenCL language standards. 1328 // Override the -std option in this case. 1329 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1330 LangStandard::Kind OpenCLLangStd 1331 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1332 .Case("CL", LangStandard::lang_opencl) 1333 .Case("CL1.1", LangStandard::lang_opencl11) 1334 .Case("CL1.2", LangStandard::lang_opencl12) 1335 .Case("CL2.0", LangStandard::lang_opencl20) 1336 .Default(LangStandard::lang_unspecified); 1337 1338 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1339 Diags.Report(diag::err_drv_invalid_value) 1340 << A->getAsString(Args) << A->getValue(); 1341 } 1342 else 1343 LangStd = OpenCLLangStd; 1344 } 1345 1346 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1347 1348 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1349 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1350 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1351 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1352 // name, as it doesn't seem a useful distinction. 1353 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1354 Opts.GNUKeywords); 1355 1356 if (Args.hasArg(OPT_fno_operator_names)) 1357 Opts.CXXOperatorNames = 0; 1358 1359 if (Args.hasArg(OPT_fcuda_is_device)) 1360 Opts.CUDAIsDevice = 1; 1361 1362 if (Opts.ObjC1) { 1363 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1364 StringRef value = arg->getValue(); 1365 if (Opts.ObjCRuntime.tryParse(value)) 1366 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1367 } 1368 1369 if (Args.hasArg(OPT_fobjc_gc_only)) 1370 Opts.setGC(LangOptions::GCOnly); 1371 else if (Args.hasArg(OPT_fobjc_gc)) 1372 Opts.setGC(LangOptions::HybridGC); 1373 else if (Args.hasArg(OPT_fobjc_arc)) { 1374 Opts.ObjCAutoRefCount = 1; 1375 if (!Opts.ObjCRuntime.allowsARC()) 1376 Diags.Report(diag::err_arc_unsupported_on_runtime); 1377 1378 // Only set ObjCARCWeak if ARC is enabled. 1379 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1380 Opts.ObjCARCWeak = 1; 1381 else 1382 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1383 } 1384 1385 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1386 Opts.ObjCInferRelatedResultType = 0; 1387 1388 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1389 Opts.ObjCSubscriptingLegacyRuntime = 1390 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1391 } 1392 1393 if (Args.hasArg(OPT_fgnu89_inline)) 1394 Opts.GNUInline = 1; 1395 1396 if (Args.hasArg(OPT_fapple_kext)) { 1397 if (!Opts.CPlusPlus) 1398 Diags.Report(diag::warn_c_kext); 1399 else 1400 Opts.AppleKext = 1; 1401 } 1402 1403 if (Args.hasArg(OPT_print_ivar_layout)) 1404 Opts.ObjCGCBitmapPrint = 1; 1405 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1406 Opts.NoConstantCFStrings = 1; 1407 1408 if (Args.hasArg(OPT_faltivec)) 1409 Opts.AltiVec = 1; 1410 1411 if (Args.hasArg(OPT_pthread)) 1412 Opts.POSIXThreads = 1; 1413 1414 // The value-visibility mode defaults to "default". 1415 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1416 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1417 } else { 1418 Opts.setValueVisibilityMode(DefaultVisibility); 1419 } 1420 1421 // The type-visibility mode defaults to the value-visibility mode. 1422 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1423 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1424 } else { 1425 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1426 } 1427 1428 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1429 Opts.InlineVisibilityHidden = 1; 1430 1431 if (Args.hasArg(OPT_ftrapv)) { 1432 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1433 // Set the handler, if one is specified. 1434 Opts.OverflowHandler = 1435 Args.getLastArgValue(OPT_ftrapv_handler); 1436 } 1437 else if (Args.hasArg(OPT_fwrapv)) 1438 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1439 1440 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1441 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1442 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1443 Opts.MSCompatibilityVersion = parseMSCVersion(Args, Diags); 1444 1445 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1446 // is specified, or -std is set to a conforming mode. 1447 // Trigraphs are disabled by default in c++1z onwards. 1448 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1449 Opts.Trigraphs = 1450 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1451 1452 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1453 OPT_fno_dollars_in_identifiers, 1454 Opts.DollarIdents); 1455 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1456 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1457 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1458 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1459 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1460 Opts.ConstStrings); 1461 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1462 Opts.LaxVectorConversions = 0; 1463 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1464 Opts.ThreadsafeStatics = 0; 1465 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1466 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1467 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1468 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1469 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1470 1471 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1472 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1473 Opts.Blocks = Args.hasArg(OPT_fblocks); 1474 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1475 Opts.Modules = Args.hasArg(OPT_fmodules); 1476 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1477 Opts.ModulesDeclUse = 1478 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1479 Opts.ModulesSearchAll = Opts.Modules && 1480 !Args.hasArg(OPT_fno_modules_search_all) && 1481 Args.hasArg(OPT_fmodules_search_all); 1482 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1483 Opts.ModulesImplicitMaps = Args.hasFlag(OPT_fmodules_implicit_maps, 1484 OPT_fno_modules_implicit_maps, true); 1485 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1486 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1487 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1488 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1489 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1490 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1491 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1492 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1493 Opts.SizedDeallocation |= Args.hasArg(OPT_fsized_deallocation); 1494 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1495 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1496 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1497 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1498 Opts.InstantiationDepth = 1499 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1500 Opts.ArrowDepth = 1501 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1502 Opts.ConstexprCallDepth = 1503 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1504 Opts.ConstexprStepLimit = 1505 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1506 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1507 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1508 Opts.NumLargeByValueCopy = 1509 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1510 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1511 Opts.ObjCConstantStringClass = 1512 Args.getLastArgValue(OPT_fconstant_string_class); 1513 Opts.ObjCDefaultSynthProperties = 1514 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1515 Opts.EncodeExtendedBlockSig = 1516 Args.hasArg(OPT_fencode_extended_block_signature); 1517 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1518 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1519 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1520 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1521 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1522 Opts.Static = Args.hasArg(OPT_static_define); 1523 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1524 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1525 || Args.hasArg(OPT_fdump_record_layouts); 1526 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1527 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1528 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1529 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1530 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1531 Opts.MRTD = Args.hasArg(OPT_mrtd); 1532 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1533 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1534 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1535 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1536 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1537 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1538 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1539 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1540 Opts.ImplementationOfModule = 1541 Args.getLastArgValue(OPT_fmodule_implementation_of); 1542 Opts.NativeHalfType = Opts.NativeHalfType; 1543 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1544 1545 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1546 Opts.CurrentModule != Opts.ImplementationOfModule) { 1547 Diags.Report(diag::err_conflicting_module_names) 1548 << Opts.CurrentModule << Opts.ImplementationOfModule; 1549 } 1550 1551 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1552 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1553 .Case("target", LangOptions::ASMM_Target) 1554 .Case("no", LangOptions::ASMM_Off) 1555 .Case("yes", LangOptions::ASMM_On) 1556 .Default(255)) { 1557 default: 1558 Diags.Report(diag::err_drv_invalid_value) 1559 << "-faddress-space-map-mangling=" << A->getValue(); 1560 break; 1561 case LangOptions::ASMM_Target: 1562 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1563 break; 1564 case LangOptions::ASMM_On: 1565 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1566 break; 1567 case LangOptions::ASMM_Off: 1568 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1569 break; 1570 } 1571 } 1572 1573 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1574 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1575 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1576 A->getValue()) 1577 .Case("single", 1578 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1579 .Case("multiple", 1580 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1581 .Case("virtual", 1582 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1583 .Default(LangOptions::PPTMK_BestCase); 1584 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1585 Diags.Report(diag::err_drv_invalid_value) 1586 << "-fms-memptr-rep=" << A->getValue(); 1587 1588 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1589 } 1590 1591 // Check if -fopenmp= is specified. 1592 if (const Arg *A = Args.getLastArg(options::OPT_fopenmp_EQ)) { 1593 Opts.OpenMP = llvm::StringSwitch<bool>(A->getValue()) 1594 .Case("libiomp5", true) 1595 .Default(false); 1596 } 1597 1598 // Record whether the __DEPRECATED define was requested. 1599 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1600 OPT_fno_deprecated_macro, 1601 Opts.Deprecated); 1602 1603 // FIXME: Eliminate this dependency. 1604 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1605 OptSize = getOptimizationLevelSize(Args); 1606 Opts.Optimize = Opt != 0; 1607 Opts.OptimizeSize = OptSize != 0; 1608 1609 // This is the __NO_INLINE__ define, which just depends on things like the 1610 // optimization level and -fno-inline, not actually whether the backend has 1611 // inlining enabled. 1612 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1613 1614 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1615 Args.hasArg(OPT_cl_fast_relaxed_math); 1616 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1617 Args.hasArg(OPT_cl_finite_math_only) || 1618 Args.hasArg(OPT_cl_fast_relaxed_math); 1619 1620 Opts.RetainCommentsFromSystemHeaders = 1621 Args.hasArg(OPT_fretain_comments_from_system_headers); 1622 1623 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1624 switch (SSP) { 1625 default: 1626 Diags.Report(diag::err_drv_invalid_value) 1627 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1628 break; 1629 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1630 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1631 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1632 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1633 } 1634 1635 // Parse -fsanitize= arguments. 1636 std::vector<std::string> Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ); 1637 for (const auto &Sanitizer : Sanitizers) { 1638 SanitizerKind K = llvm::StringSwitch<SanitizerKind>(Sanitizer) 1639 #define SANITIZER(NAME, ID) .Case(NAME, SanitizerKind::ID) 1640 #include "clang/Basic/Sanitizers.def" 1641 .Default(SanitizerKind::Unknown); 1642 if (K == SanitizerKind::Unknown) 1643 Diags.Report(diag::err_drv_invalid_value) 1644 << "-fsanitize=" << Sanitizer; 1645 else 1646 Opts.Sanitize.set(K, true); 1647 } 1648 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1649 Opts.SanitizeAddressFieldPadding = 1650 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1651 Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist); 1652 } 1653 1654 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1655 FileManager &FileMgr, 1656 DiagnosticsEngine &Diags) { 1657 using namespace options; 1658 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1659 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1660 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1661 Opts.TokenCache = A->getValue(); 1662 else 1663 Opts.TokenCache = Opts.ImplicitPTHInclude; 1664 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1665 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1666 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1667 1668 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1669 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1670 ie = Args.filtered_end(); it != ie; ++it) { 1671 const Arg *A = *it; 1672 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1673 } 1674 1675 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1676 StringRef Value(A->getValue()); 1677 size_t Comma = Value.find(','); 1678 unsigned Bytes = 0; 1679 unsigned EndOfLine = 0; 1680 1681 if (Comma == StringRef::npos || 1682 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1683 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1684 Diags.Report(diag::err_drv_preamble_format); 1685 else { 1686 Opts.PrecompiledPreambleBytes.first = Bytes; 1687 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1688 } 1689 } 1690 1691 // Add macros from the command line. 1692 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1693 ie = Args.filtered_end(); it != ie; ++it) { 1694 if ((*it)->getOption().matches(OPT_D)) 1695 Opts.addMacroDef((*it)->getValue()); 1696 else 1697 Opts.addMacroUndef((*it)->getValue()); 1698 } 1699 1700 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1701 1702 // Add the ordered list of -includes. 1703 for (arg_iterator it = Args.filtered_begin(OPT_include), 1704 ie = Args.filtered_end(); it != ie; ++it) { 1705 const Arg *A = *it; 1706 Opts.Includes.push_back(A->getValue()); 1707 } 1708 1709 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1710 ie = Args.filtered_end(); it != ie; ++it) { 1711 const Arg *A = *it; 1712 Opts.ChainedIncludes.push_back(A->getValue()); 1713 } 1714 1715 // Include 'altivec.h' if -faltivec option present 1716 if (Args.hasArg(OPT_faltivec)) 1717 Opts.Includes.push_back("altivec.h"); 1718 1719 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1720 ie = Args.filtered_end(); it != ie; ++it) { 1721 const Arg *A = *it; 1722 std::pair<StringRef,StringRef> Split = 1723 StringRef(A->getValue()).split(';'); 1724 1725 if (Split.second.empty()) { 1726 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1727 continue; 1728 } 1729 1730 Opts.addRemappedFile(Split.first, Split.second); 1731 } 1732 1733 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1734 StringRef Name = A->getValue(); 1735 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1736 .Case("libc++", ARCXX_libcxx) 1737 .Case("libstdc++", ARCXX_libstdcxx) 1738 .Case("none", ARCXX_nolib) 1739 .Default(~0U); 1740 if (Library == ~0U) 1741 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1742 else 1743 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1744 } 1745 } 1746 1747 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1748 ArgList &Args, 1749 frontend::ActionKind Action) { 1750 using namespace options; 1751 1752 switch (Action) { 1753 case frontend::ASTDeclList: 1754 case frontend::ASTDump: 1755 case frontend::ASTPrint: 1756 case frontend::ASTView: 1757 case frontend::EmitAssembly: 1758 case frontend::EmitBC: 1759 case frontend::EmitHTML: 1760 case frontend::EmitLLVM: 1761 case frontend::EmitLLVMOnly: 1762 case frontend::EmitCodeGenOnly: 1763 case frontend::EmitObj: 1764 case frontend::FixIt: 1765 case frontend::GenerateModule: 1766 case frontend::GeneratePCH: 1767 case frontend::GeneratePTH: 1768 case frontend::ParseSyntaxOnly: 1769 case frontend::ModuleFileInfo: 1770 case frontend::VerifyPCH: 1771 case frontend::PluginAction: 1772 case frontend::PrintDeclContext: 1773 case frontend::RewriteObjC: 1774 case frontend::RewriteTest: 1775 case frontend::RunAnalysis: 1776 case frontend::MigrateSource: 1777 Opts.ShowCPP = 0; 1778 break; 1779 1780 case frontend::DumpRawTokens: 1781 case frontend::DumpTokens: 1782 case frontend::InitOnly: 1783 case frontend::PrintPreamble: 1784 case frontend::PrintPreprocessedInput: 1785 case frontend::RewriteMacros: 1786 case frontend::RunPreprocessorOnly: 1787 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1788 break; 1789 } 1790 1791 Opts.ShowComments = Args.hasArg(OPT_C); 1792 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1793 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1794 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1795 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1796 } 1797 1798 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1799 using namespace options; 1800 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1801 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1802 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 1803 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1804 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1805 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1806 1807 // Use the default target triple if unspecified. 1808 if (Opts.Triple.empty()) 1809 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1810 } 1811 1812 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1813 const char *const *ArgBegin, 1814 const char *const *ArgEnd, 1815 DiagnosticsEngine &Diags) { 1816 bool Success = true; 1817 1818 // Parse the arguments. 1819 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 1820 const unsigned IncludedFlagsBitmask = options::CC1Option; 1821 unsigned MissingArgIndex, MissingArgCount; 1822 std::unique_ptr<InputArgList> Args( 1823 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount, 1824 IncludedFlagsBitmask)); 1825 1826 // Check for missing argument error. 1827 if (MissingArgCount) { 1828 Diags.Report(diag::err_drv_missing_argument) 1829 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1830 Success = false; 1831 } 1832 1833 // Issue errors on unknown arguments. 1834 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1835 ie = Args->filtered_end(); it != ie; ++it) { 1836 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1837 Success = false; 1838 } 1839 1840 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 1841 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 1842 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1843 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 1844 && Success; 1845 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args); 1846 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1847 // FIXME: We shouldn't have to pass the DashX option around here 1848 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1849 ParseTargetArgs(Res.getTargetOpts(), *Args); 1850 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags, 1851 Res.getTargetOpts()) && Success; 1852 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1853 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1854 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 1855 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1856 Res.getLangOpts()->ObjCExceptions = 1; 1857 } 1858 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1859 // PCH file and find the original header name. Remove the need to do that in 1860 // ParsePreprocessorArgs and remove the FileManager 1861 // parameters from the function and the "FileManager.h" #include. 1862 FileManager FileMgr(Res.getFileSystemOpts()); 1863 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1864 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args, 1865 Res.getFrontendOpts().ProgramAction); 1866 return Success; 1867 } 1868 1869 namespace { 1870 1871 class ModuleSignature { 1872 SmallVector<uint64_t, 16> Data; 1873 unsigned CurBit; 1874 uint64_t CurValue; 1875 1876 public: 1877 ModuleSignature() : CurBit(0), CurValue(0) { } 1878 1879 void add(uint64_t Value, unsigned Bits); 1880 void add(StringRef Value); 1881 void flush(); 1882 1883 llvm::APInt getAsInteger() const; 1884 }; 1885 } 1886 1887 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1888 CurValue |= Value << CurBit; 1889 if (CurBit + NumBits < 64) { 1890 CurBit += NumBits; 1891 return; 1892 } 1893 1894 // Add the current word. 1895 Data.push_back(CurValue); 1896 1897 if (CurBit) 1898 CurValue = Value >> (64-CurBit); 1899 else 1900 CurValue = 0; 1901 CurBit = (CurBit+NumBits) & 63; 1902 } 1903 1904 void ModuleSignature::flush() { 1905 if (CurBit == 0) 1906 return; 1907 1908 Data.push_back(CurValue); 1909 CurBit = 0; 1910 CurValue = 0; 1911 } 1912 1913 void ModuleSignature::add(StringRef Value) { 1914 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1915 add(*I, 8); 1916 } 1917 1918 llvm::APInt ModuleSignature::getAsInteger() const { 1919 return llvm::APInt(Data.size() * 64, Data); 1920 } 1921 1922 std::string CompilerInvocation::getModuleHash() const { 1923 // Note: For QoI reasons, the things we use as a hash here should all be 1924 // dumped via the -module-info flag. 1925 using llvm::hash_code; 1926 using llvm::hash_value; 1927 using llvm::hash_combine; 1928 1929 // Start the signature with the compiler version. 1930 // FIXME: We'd rather use something more cryptographically sound than 1931 // CityHash, but this will do for now. 1932 hash_code code = hash_value(getClangFullRepositoryVersion()); 1933 1934 // Extend the signature with the language options 1935 #define LANGOPT(Name, Bits, Default, Description) \ 1936 code = hash_combine(code, LangOpts->Name); 1937 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1938 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 1939 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1940 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1941 #include "clang/Basic/LangOptions.def" 1942 1943 // Extend the signature with the target options. 1944 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 1945 TargetOpts->ABI); 1946 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 1947 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 1948 1949 // Extend the signature with preprocessor options. 1950 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 1951 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 1952 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 1953 1954 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 1955 I = getPreprocessorOpts().Macros.begin(), 1956 IEnd = getPreprocessorOpts().Macros.end(); 1957 I != IEnd; ++I) { 1958 // If we're supposed to ignore this macro for the purposes of modules, 1959 // don't put it into the hash. 1960 if (!hsOpts.ModulesIgnoreMacros.empty()) { 1961 // Check whether we're ignoring this macro. 1962 StringRef MacroDef = I->first; 1963 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 1964 continue; 1965 } 1966 1967 code = hash_combine(code, I->first, I->second); 1968 } 1969 1970 // Extend the signature with the sysroot. 1971 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 1972 hsOpts.UseStandardSystemIncludes, 1973 hsOpts.UseStandardCXXIncludes, 1974 hsOpts.UseLibcxx); 1975 code = hash_combine(code, hsOpts.ResourceDir); 1976 1977 // Extend the signature with the user build path. 1978 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 1979 1980 // Darwin-specific hack: if we have a sysroot, use the contents and 1981 // modification time of 1982 // $sysroot/System/Library/CoreServices/SystemVersion.plist 1983 // as part of the module hash. 1984 if (!hsOpts.Sysroot.empty()) { 1985 SmallString<128> systemVersionFile; 1986 systemVersionFile += hsOpts.Sysroot; 1987 llvm::sys::path::append(systemVersionFile, "System"); 1988 llvm::sys::path::append(systemVersionFile, "Library"); 1989 llvm::sys::path::append(systemVersionFile, "CoreServices"); 1990 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 1991 1992 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 1993 llvm::MemoryBuffer::getFile(systemVersionFile.str()); 1994 if (buffer) { 1995 code = hash_combine(code, buffer.get()->getBuffer()); 1996 1997 struct stat statBuf; 1998 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 1999 code = hash_combine(code, statBuf.st_mtime); 2000 } 2001 } 2002 2003 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2004 } 2005 2006 namespace clang { 2007 2008 template<typename IntTy> 2009 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2010 IntTy Default, 2011 DiagnosticsEngine *Diags) { 2012 IntTy Res = Default; 2013 if (Arg *A = Args.getLastArg(Id)) { 2014 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2015 if (Diags) 2016 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2017 << A->getValue(); 2018 } 2019 } 2020 return Res; 2021 } 2022 2023 2024 // Declared in clang/Frontend/Utils.h. 2025 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2026 DiagnosticsEngine *Diags) { 2027 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2028 } 2029 2030 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2031 uint64_t Default, 2032 DiagnosticsEngine *Diags) { 2033 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2034 } 2035 2036 void BuryPointer(const void *Ptr) { 2037 // This function may be called only a small fixed amount of times per each 2038 // invocation, otherwise we do actually have a leak which we want to report. 2039 // If this function is called more than kGraveYardMaxSize times, the pointers 2040 // will not be properly buried and a leak detector will report a leak, which 2041 // is what we want in such case. 2042 static const size_t kGraveYardMaxSize = 16; 2043 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2044 static std::atomic<unsigned> GraveYardSize; 2045 unsigned Idx = GraveYardSize++; 2046 if (Idx >= kGraveYardMaxSize) 2047 return; 2048 GraveYard[Idx] = Ptr; 2049 } 2050 2051 IntrusiveRefCntPtr<vfs::FileSystem> 2052 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2053 DiagnosticsEngine &Diags) { 2054 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2055 return vfs::getRealFileSystem(); 2056 2057 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2058 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2059 // earlier vfs files are on the bottom 2060 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2061 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2062 llvm::MemoryBuffer::getFile(File); 2063 if (!Buffer) { 2064 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2065 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2066 } 2067 2068 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2069 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2070 if (!FS.get()) { 2071 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2072 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2073 } 2074 Overlay->pushOverlay(FS); 2075 } 2076 return Overlay; 2077 } 2078 } // end namespace clang 2079