1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "clang/Basic/FileManager.h" 12 #include "clang/Basic/Version.h" 13 #include "clang/Config/config.h" 14 #include "clang/Driver/DriverDiagnostic.h" 15 #include "clang/Driver/Options.h" 16 #include "clang/Driver/Util.h" 17 #include "clang/Frontend/FrontendDiagnostic.h" 18 #include "clang/Frontend/LangStandard.h" 19 #include "clang/Frontend/Utils.h" 20 #include "clang/Lex/HeaderSearchOptions.h" 21 #include "clang/Serialization/ASTReader.h" 22 #include "llvm/ADT/Hashing.h" 23 #include "llvm/ADT/STLExtras.h" 24 #include "llvm/ADT/SmallVector.h" 25 #include "llvm/ADT/StringExtras.h" 26 #include "llvm/ADT/StringSwitch.h" 27 #include "llvm/ADT/Triple.h" 28 #include "llvm/Option/Arg.h" 29 #include "llvm/Option/ArgList.h" 30 #include "llvm/Option/OptTable.h" 31 #include "llvm/Option/Option.h" 32 #include "llvm/Support/CodeGen.h" 33 #include "llvm/Support/ErrorHandling.h" 34 #include "llvm/Support/FileSystem.h" 35 #include "llvm/Support/Host.h" 36 #include "llvm/Support/Path.h" 37 #include "llvm/Support/Process.h" 38 #include <atomic> 39 #include <memory> 40 #include <sys/stat.h> 41 #include <system_error> 42 using namespace clang; 43 44 //===----------------------------------------------------------------------===// 45 // Initialization. 46 //===----------------------------------------------------------------------===// 47 48 CompilerInvocationBase::CompilerInvocationBase() 49 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 50 DiagnosticOpts(new DiagnosticOptions()), 51 HeaderSearchOpts(new HeaderSearchOptions()), 52 PreprocessorOpts(new PreprocessorOptions()) {} 53 54 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 55 : RefCountedBase<CompilerInvocation>(), 56 LangOpts(new LangOptions(*X.getLangOpts())), 57 TargetOpts(new TargetOptions(X.getTargetOpts())), 58 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 59 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 60 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 61 62 CompilerInvocationBase::~CompilerInvocationBase() {} 63 64 //===----------------------------------------------------------------------===// 65 // Deserialization (from args) 66 //===----------------------------------------------------------------------===// 67 68 using namespace clang::driver; 69 using namespace clang::driver::options; 70 using namespace llvm::opt; 71 72 // 73 74 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 75 DiagnosticsEngine &Diags) { 76 unsigned DefaultOpt = 0; 77 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 78 DefaultOpt = 2; 79 80 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 81 if (A->getOption().matches(options::OPT_O0)) 82 return 0; 83 84 if (A->getOption().matches(options::OPT_Ofast)) 85 return 3; 86 87 assert (A->getOption().matches(options::OPT_O)); 88 89 StringRef S(A->getValue()); 90 if (S == "s" || S == "z" || S.empty()) 91 return 2; 92 93 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 94 } 95 96 return DefaultOpt; 97 } 98 99 static unsigned getOptimizationLevelSize(ArgList &Args) { 100 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 101 if (A->getOption().matches(options::OPT_O)) { 102 switch (A->getValue()[0]) { 103 default: 104 return 0; 105 case 's': 106 return 1; 107 case 'z': 108 return 2; 109 } 110 } 111 } 112 return 0; 113 } 114 115 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 116 OptSpecifier GroupWithValue, 117 std::vector<std::string> &Diagnostics) { 118 for (Arg *A : Args.filtered(Group)) { 119 if (A->getOption().getKind() == Option::FlagClass) { 120 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 121 // its name (minus the "W" or "R" at the beginning) to the warning list. 122 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 123 } else if (A->getOption().matches(GroupWithValue)) { 124 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 125 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 126 } else { 127 // Otherwise, add its value (for OPT_W_Joined and similar). 128 for (const char *Arg : A->getValues()) 129 Diagnostics.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 void parseSanitizerKinds(StringRef FlagName, 329 const std::vector<std::string> &Sanitizers, 330 DiagnosticsEngine &Diags, SanitizerSet &S) { 331 for (const auto &Sanitizer : Sanitizers) { 332 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 333 if (K == 0) 334 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 335 else 336 S.set(K, true); 337 } 338 } 339 340 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 341 DiagnosticsEngine &Diags, 342 const TargetOptions &TargetOpts) { 343 using namespace options; 344 bool Success = true; 345 346 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 347 // TODO: This could be done in Driver 348 unsigned MaxOptLevel = 3; 349 if (OptimizationLevel > MaxOptLevel) { 350 // If the optimization level is not supported, fall back on the default 351 // optimization 352 Diags.Report(diag::warn_drv_optimization_value) 353 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 354 OptimizationLevel = MaxOptLevel; 355 } 356 Opts.OptimizationLevel = OptimizationLevel; 357 358 // We must always run at least the always inlining pass. 359 Opts.setInlining( 360 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 361 : CodeGenOptions::OnlyAlwaysInlining); 362 // -fno-inline-functions overrides OptimizationLevel > 1. 363 Opts.NoInline = Args.hasArg(OPT_fno_inline); 364 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 365 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 366 367 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 368 StringRef Name = A->getValue(); 369 if (Name == "Accelerate") 370 Opts.setVecLib(CodeGenOptions::Accelerate); 371 else if (Name == "none") 372 Opts.setVecLib(CodeGenOptions::NoLibrary); 373 else 374 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 375 } 376 377 if (Args.hasArg(OPT_gline_tables_only)) { 378 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 379 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) || 380 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) { 381 bool Default = false; 382 // Until dtrace (via CTF) and LLDB can deal with distributed debug info, 383 // Darwin and FreeBSD default to standalone/full debug info. 384 if (llvm::Triple(TargetOpts.Triple).isOSDarwin() || 385 llvm::Triple(TargetOpts.Triple).isOSFreeBSD()) 386 Default = true; 387 388 if (Args.hasFlag(OPT_fstandalone_debug, OPT_fno_standalone_debug, Default)) 389 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 390 else 391 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 392 } 393 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 394 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 395 if (Args.hasArg(OPT_gdwarf_2)) 396 Opts.DwarfVersion = 2; 397 else if (Args.hasArg(OPT_gdwarf_3)) 398 Opts.DwarfVersion = 3; 399 else if (Args.hasArg(OPT_gdwarf_4)) 400 Opts.DwarfVersion = 4; 401 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo) 402 // Default Dwarf version is 4 if we are generating debug information. 403 Opts.DwarfVersion = 4; 404 405 if (const Arg *A = 406 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 407 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 408 409 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 410 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 411 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 412 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 413 OPT_fuse_register_sized_bitfield_access); 414 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 415 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 416 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 417 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 418 Opts.NoCommon = Args.hasArg(OPT_fno_common); 419 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 420 Opts.OptimizeSize = getOptimizationLevelSize(Args); 421 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 422 Args.hasArg(OPT_ffreestanding)); 423 Opts.UnrollLoops = 424 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 425 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); 426 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 427 428 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 429 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 430 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 431 Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) || 432 Args.hasArg(OPT_fprofile_instr_generate_EQ);; 433 Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ); 434 Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); 435 Opts.CoverageMapping = Args.hasArg(OPT_fcoverage_mapping); 436 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 437 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 438 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 439 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 440 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 441 Opts.CodeModel = getCodeModel(Args, Diags); 442 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 443 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 444 Opts.DisableFree = Args.hasArg(OPT_disable_free); 445 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 446 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 447 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 448 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 449 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 450 Args.hasArg(OPT_cl_finite_math_only) || 451 Args.hasArg(OPT_cl_fast_relaxed_math)); 452 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 453 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 454 Args.hasArg(OPT_cl_finite_math_only) || 455 Args.hasArg(OPT_cl_fast_relaxed_math)); 456 Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros); 457 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 458 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 459 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 460 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 461 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 462 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 463 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 464 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 465 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 466 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 467 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 468 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 469 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 470 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 471 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 472 Args.hasArg(OPT_cl_fast_relaxed_math); 473 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 474 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 475 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 476 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 477 Diags.Report(diag::err_drv_invalid_value) 478 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 479 << Opts.ThreadModel; 480 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 481 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 482 483 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 484 OPT_fno_function_sections, false); 485 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 486 OPT_fno_data_sections, false); 487 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 488 OPT_fno_unique_section_names, true); 489 490 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 491 492 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 493 494 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 495 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 496 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 497 498 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 499 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 500 501 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 502 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 503 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 504 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 505 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 506 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 507 Opts.CoverageNoFunctionNamesInData = 508 Args.hasArg(OPT_coverage_no_function_names_in_data); 509 Opts.CoverageExitBlockBeforeBody = 510 Args.hasArg(OPT_coverage_exit_block_before_body); 511 if (Args.hasArg(OPT_coverage_version_EQ)) { 512 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 513 if (CoverageVersion.size() != 4) { 514 Diags.Report(diag::err_drv_invalid_value) 515 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 516 << CoverageVersion; 517 } else { 518 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 519 } 520 } 521 } 522 523 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 524 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 525 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 526 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 527 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 528 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 529 Opts.SanitizeCoverageType = 530 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 531 Opts.SanitizeCoverageIndirectCalls = 532 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 533 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 534 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 535 Opts.SanitizeCoverage8bitCounters = 536 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 537 Opts.SanitizeMemoryTrackOrigins = 538 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 539 Opts.SanitizeUndefinedTrapOnError = 540 Args.hasArg(OPT_fsanitize_undefined_trap_on_error); 541 Opts.SSPBufferSize = 542 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 543 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 544 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 545 StringRef Val = A->getValue(); 546 unsigned StackAlignment = Opts.StackAlignment; 547 Val.getAsInteger(10, StackAlignment); 548 Opts.StackAlignment = StackAlignment; 549 } 550 551 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 552 StringRef Val = A->getValue(); 553 unsigned StackProbeSize = Opts.StackProbeSize; 554 Val.getAsInteger(0, StackProbeSize); 555 Opts.StackProbeSize = StackProbeSize; 556 } 557 558 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 559 StringRef Name = A->getValue(); 560 unsigned Method = llvm::StringSwitch<unsigned>(Name) 561 .Case("legacy", CodeGenOptions::Legacy) 562 .Case("non-legacy", CodeGenOptions::NonLegacy) 563 .Case("mixed", CodeGenOptions::Mixed) 564 .Default(~0U); 565 if (Method == ~0U) { 566 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 567 Success = false; 568 } else { 569 Opts.setObjCDispatchMethod( 570 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 571 } 572 } 573 574 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 575 StringRef Name = A->getValue(); 576 unsigned Model = llvm::StringSwitch<unsigned>(Name) 577 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 578 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 579 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 580 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 581 .Default(~0U); 582 if (Model == ~0U) { 583 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 584 Success = false; 585 } else { 586 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 587 } 588 } 589 590 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 591 StringRef Val = A->getValue(); 592 if (Val == "fast") 593 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 594 else if (Val == "on") 595 Opts.setFPContractMode(CodeGenOptions::FPC_On); 596 else if (Val == "off") 597 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 598 else 599 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 600 } 601 602 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 603 if (A->getOption().matches(OPT_fpcc_struct_return)) { 604 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 605 } else { 606 assert(A->getOption().matches(OPT_freg_struct_return)); 607 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 608 } 609 } 610 611 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 612 bool NeedLocTracking = false; 613 614 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 615 Opts.OptimizationRemarkPattern = 616 GenerateOptimizationRemarkRegex(Diags, Args, A); 617 NeedLocTracking = true; 618 } 619 620 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 621 Opts.OptimizationRemarkMissedPattern = 622 GenerateOptimizationRemarkRegex(Diags, Args, A); 623 NeedLocTracking = true; 624 } 625 626 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 627 Opts.OptimizationRemarkAnalysisPattern = 628 GenerateOptimizationRemarkRegex(Diags, Args, A); 629 NeedLocTracking = true; 630 } 631 632 // If the user requested to use a sample profile for PGO, then the 633 // backend will need to track source location information so the profile 634 // can be incorporated into the IR. 635 if (!Opts.SampleProfileFile.empty()) 636 NeedLocTracking = true; 637 638 // If the user requested a flag that requires source locations available in 639 // the backend, make sure that the backend tracks source location information. 640 if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) 641 Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); 642 643 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 644 645 // Parse -fsanitize-recover= arguments. 646 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 647 parseSanitizerKinds("-fsanitize-recover=", 648 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 649 Opts.SanitizeRecover); 650 651 Opts.CudaGpuBinaryFileNames = 652 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 653 654 return Success; 655 } 656 657 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 658 ArgList &Args) { 659 using namespace options; 660 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 661 Opts.Targets = Args.getAllArgValues(OPT_MT); 662 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 663 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 664 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 665 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 666 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 667 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 668 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 669 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 670 Opts.ModuleDependencyOutputDir = 671 Args.getLastArgValue(OPT_module_dependency_dir); 672 if (Args.hasArg(OPT_MV)) 673 Opts.OutputFormat = DependencyOutputFormat::NMake; 674 } 675 676 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 677 DiagnosticsEngine *Diags) { 678 using namespace options; 679 bool Success = true; 680 681 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 682 if (Arg *A = 683 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 684 Opts.DiagnosticSerializationFile = A->getValue(); 685 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 686 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 687 Opts.Pedantic = Args.hasArg(OPT_pedantic); 688 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 689 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 690 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 691 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 692 OPT_fno_show_column, 693 /*Default=*/true); 694 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 695 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 696 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 697 698 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 699 700 // Default behavior is to not to show note include stacks. 701 Opts.ShowNoteIncludeStack = false; 702 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 703 OPT_fno_diagnostics_show_note_include_stack)) 704 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 705 Opts.ShowNoteIncludeStack = true; 706 707 StringRef ShowOverloads = 708 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 709 if (ShowOverloads == "best") 710 Opts.setShowOverloads(Ovl_Best); 711 else if (ShowOverloads == "all") 712 Opts.setShowOverloads(Ovl_All); 713 else { 714 Success = false; 715 if (Diags) 716 Diags->Report(diag::err_drv_invalid_value) 717 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 718 << ShowOverloads; 719 } 720 721 StringRef ShowCategory = 722 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 723 if (ShowCategory == "none") 724 Opts.ShowCategories = 0; 725 else if (ShowCategory == "id") 726 Opts.ShowCategories = 1; 727 else if (ShowCategory == "name") 728 Opts.ShowCategories = 2; 729 else { 730 Success = false; 731 if (Diags) 732 Diags->Report(diag::err_drv_invalid_value) 733 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 734 << ShowCategory; 735 } 736 737 StringRef Format = 738 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 739 if (Format == "clang") 740 Opts.setFormat(DiagnosticOptions::Clang); 741 else if (Format == "msvc") 742 Opts.setFormat(DiagnosticOptions::MSVC); 743 else if (Format == "msvc-fallback") { 744 Opts.setFormat(DiagnosticOptions::MSVC); 745 Opts.CLFallbackMode = true; 746 } else if (Format == "vi") 747 Opts.setFormat(DiagnosticOptions::Vi); 748 else { 749 Success = false; 750 if (Diags) 751 Diags->Report(diag::err_drv_invalid_value) 752 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 753 << Format; 754 } 755 756 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 757 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 758 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 759 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 760 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 761 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 762 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 763 Opts.MacroBacktraceLimit = 764 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 765 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 766 Opts.TemplateBacktraceLimit = getLastArgIntValue( 767 Args, OPT_ftemplate_backtrace_limit, 768 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 769 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 770 Args, OPT_fconstexpr_backtrace_limit, 771 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 772 Opts.SpellCheckingLimit = getLastArgIntValue( 773 Args, OPT_fspell_checking_limit, 774 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 775 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 776 DiagnosticOptions::DefaultTabStop, Diags); 777 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 778 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 779 if (Diags) 780 Diags->Report(diag::warn_ignoring_ftabstop_value) 781 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 782 } 783 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 784 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 785 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 786 787 return Success; 788 } 789 790 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 791 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 792 } 793 794 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 795 DiagnosticsEngine &Diags) { 796 using namespace options; 797 Opts.ProgramAction = frontend::ParseSyntaxOnly; 798 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 799 switch (A->getOption().getID()) { 800 default: 801 llvm_unreachable("Invalid option in group!"); 802 case OPT_ast_list: 803 Opts.ProgramAction = frontend::ASTDeclList; break; 804 case OPT_ast_dump: 805 case OPT_ast_dump_lookups: 806 Opts.ProgramAction = frontend::ASTDump; break; 807 case OPT_ast_print: 808 Opts.ProgramAction = frontend::ASTPrint; break; 809 case OPT_ast_view: 810 Opts.ProgramAction = frontend::ASTView; break; 811 case OPT_dump_raw_tokens: 812 Opts.ProgramAction = frontend::DumpRawTokens; break; 813 case OPT_dump_tokens: 814 Opts.ProgramAction = frontend::DumpTokens; break; 815 case OPT_S: 816 Opts.ProgramAction = frontend::EmitAssembly; break; 817 case OPT_emit_llvm_bc: 818 Opts.ProgramAction = frontend::EmitBC; break; 819 case OPT_emit_html: 820 Opts.ProgramAction = frontend::EmitHTML; break; 821 case OPT_emit_llvm: 822 Opts.ProgramAction = frontend::EmitLLVM; break; 823 case OPT_emit_llvm_only: 824 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 825 case OPT_emit_codegen_only: 826 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 827 case OPT_emit_obj: 828 Opts.ProgramAction = frontend::EmitObj; break; 829 case OPT_fixit_EQ: 830 Opts.FixItSuffix = A->getValue(); 831 // fall-through! 832 case OPT_fixit: 833 Opts.ProgramAction = frontend::FixIt; break; 834 case OPT_emit_module: 835 Opts.ProgramAction = frontend::GenerateModule; break; 836 case OPT_emit_pch: 837 Opts.ProgramAction = frontend::GeneratePCH; break; 838 case OPT_emit_pth: 839 Opts.ProgramAction = frontend::GeneratePTH; break; 840 case OPT_init_only: 841 Opts.ProgramAction = frontend::InitOnly; break; 842 case OPT_fsyntax_only: 843 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 844 case OPT_module_file_info: 845 Opts.ProgramAction = frontend::ModuleFileInfo; break; 846 case OPT_verify_pch: 847 Opts.ProgramAction = frontend::VerifyPCH; break; 848 case OPT_print_decl_contexts: 849 Opts.ProgramAction = frontend::PrintDeclContext; break; 850 case OPT_print_preamble: 851 Opts.ProgramAction = frontend::PrintPreamble; break; 852 case OPT_E: 853 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 854 case OPT_rewrite_macros: 855 Opts.ProgramAction = frontend::RewriteMacros; break; 856 case OPT_rewrite_objc: 857 Opts.ProgramAction = frontend::RewriteObjC; break; 858 case OPT_rewrite_test: 859 Opts.ProgramAction = frontend::RewriteTest; break; 860 case OPT_analyze: 861 Opts.ProgramAction = frontend::RunAnalysis; break; 862 case OPT_migrate: 863 Opts.ProgramAction = frontend::MigrateSource; break; 864 case OPT_Eonly: 865 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 866 } 867 } 868 869 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 870 Opts.Plugins.push_back(A->getValue(0)); 871 Opts.ProgramAction = frontend::PluginAction; 872 Opts.ActionName = A->getValue(); 873 874 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 875 end = Args.filtered_end(); it != end; ++it) { 876 if ((*it)->getValue(0) == Opts.ActionName) 877 Opts.PluginArgs.push_back((*it)->getValue(1)); 878 } 879 } 880 881 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 882 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 883 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 884 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 885 end = Args.filtered_end(); it != end; ++it) { 886 if ((*it)->getValue(0) == Opts.AddPluginActions[i]) 887 Opts.AddPluginArgs[i].push_back((*it)->getValue(1)); 888 } 889 } 890 891 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 892 Opts.CodeCompletionAt = 893 ParsedSourceLocation::FromString(A->getValue()); 894 if (Opts.CodeCompletionAt.FileName.empty()) 895 Diags.Report(diag::err_drv_invalid_value) 896 << A->getAsString(Args) << A->getValue(); 897 } 898 Opts.DisableFree = Args.hasArg(OPT_disable_free); 899 900 Opts.OutputFile = Args.getLastArgValue(OPT_o); 901 Opts.Plugins = Args.getAllArgValues(OPT_load); 902 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 903 Opts.ShowHelp = Args.hasArg(OPT_help); 904 Opts.ShowStats = Args.hasArg(OPT_print_stats); 905 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 906 Opts.ShowVersion = Args.hasArg(OPT_version); 907 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 908 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 909 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 910 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 911 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 912 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 913 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 914 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 915 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 916 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 917 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 918 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 919 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 920 921 Opts.CodeCompleteOpts.IncludeMacros 922 = Args.hasArg(OPT_code_completion_macros); 923 Opts.CodeCompleteOpts.IncludeCodePatterns 924 = Args.hasArg(OPT_code_completion_patterns); 925 Opts.CodeCompleteOpts.IncludeGlobals 926 = !Args.hasArg(OPT_no_code_completion_globals); 927 Opts.CodeCompleteOpts.IncludeBriefComments 928 = Args.hasArg(OPT_code_completion_brief_comments); 929 930 Opts.OverrideRecordLayoutsFile 931 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 932 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 933 OPT_arcmt_modify, 934 OPT_arcmt_migrate)) { 935 switch (A->getOption().getID()) { 936 default: 937 llvm_unreachable("missed a case"); 938 case OPT_arcmt_check: 939 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 940 break; 941 case OPT_arcmt_modify: 942 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 943 break; 944 case OPT_arcmt_migrate: 945 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 946 break; 947 } 948 } 949 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 950 Opts.ARCMTMigrateReportOut 951 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 952 Opts.ARCMTMigrateEmitARCErrors 953 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 954 955 if (Args.hasArg(OPT_objcmt_migrate_literals)) 956 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 957 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 958 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 959 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 960 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 961 if (Args.hasArg(OPT_objcmt_migrate_property)) 962 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 963 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 964 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 965 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 966 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 967 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 968 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 969 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 970 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 971 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 972 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 973 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 974 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 975 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 976 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 977 if (Args.hasArg(OPT_objcmt_atomic_property)) 978 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 979 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 980 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 981 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 982 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 983 if (Args.hasArg(OPT_objcmt_migrate_all)) 984 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 985 986 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 987 988 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 989 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 990 Diags.Report(diag::err_drv_argument_not_allowed_with) 991 << "ARC migration" << "ObjC migration"; 992 } 993 994 InputKind DashX = IK_None; 995 if (const Arg *A = Args.getLastArg(OPT_x)) { 996 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 997 .Case("c", IK_C) 998 .Case("cl", IK_OpenCL) 999 .Case("cuda", IK_CUDA) 1000 .Case("c++", IK_CXX) 1001 .Case("objective-c", IK_ObjC) 1002 .Case("objective-c++", IK_ObjCXX) 1003 .Case("cpp-output", IK_PreprocessedC) 1004 .Case("assembler-with-cpp", IK_Asm) 1005 .Case("c++-cpp-output", IK_PreprocessedCXX) 1006 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1007 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1008 .Case("objc-cpp-output", IK_PreprocessedObjC) 1009 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1010 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1011 .Case("c-header", IK_C) 1012 .Case("cl-header", IK_OpenCL) 1013 .Case("objective-c-header", IK_ObjC) 1014 .Case("c++-header", IK_CXX) 1015 .Case("objective-c++-header", IK_ObjCXX) 1016 .Cases("ast", "pcm", IK_AST) 1017 .Case("ir", IK_LLVM_IR) 1018 .Default(IK_None); 1019 if (DashX == IK_None) 1020 Diags.Report(diag::err_drv_invalid_value) 1021 << A->getAsString(Args) << A->getValue(); 1022 } 1023 1024 // '-' is the default input if none is given. 1025 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1026 Opts.Inputs.clear(); 1027 if (Inputs.empty()) 1028 Inputs.push_back("-"); 1029 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1030 InputKind IK = DashX; 1031 if (IK == IK_None) { 1032 IK = FrontendOptions::getInputKindForExtension( 1033 StringRef(Inputs[i]).rsplit('.').second); 1034 // FIXME: Remove this hack. 1035 if (i == 0) 1036 DashX = IK; 1037 } 1038 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 1039 } 1040 1041 return DashX; 1042 } 1043 1044 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1045 void *MainAddr) { 1046 std::string ClangExecutable = 1047 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1048 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1049 1050 // Compute the path to the resource directory. 1051 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1052 SmallString<128> P(Dir); 1053 if (ClangResourceDir != "") { 1054 llvm::sys::path::append(P, ClangResourceDir); 1055 } else { 1056 StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX); 1057 llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang", 1058 CLANG_VERSION_STRING); 1059 } 1060 1061 return P.str(); 1062 } 1063 1064 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1065 using namespace options; 1066 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1067 Opts.Verbose = Args.hasArg(OPT_v); 1068 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1069 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1070 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1071 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1072 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1073 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1074 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1075 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1076 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1077 // -fmodules implies -fmodule-maps 1078 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules); 1079 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1080 Opts.ModuleCachePruneInterval = 1081 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1082 Opts.ModuleCachePruneAfter = 1083 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1084 Opts.ModulesValidateOncePerBuildSession = 1085 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1086 Opts.BuildSessionTimestamp = 1087 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1088 Opts.ModulesValidateSystemHeaders = 1089 Args.hasArg(OPT_fmodules_validate_system_headers); 1090 1091 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro), 1092 ie = Args.filtered_end(); 1093 it != ie; ++it) { 1094 StringRef MacroDef = (*it)->getValue(); 1095 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 1096 } 1097 1098 // Add -I..., -F..., and -index-header-map options in order. 1099 bool IsIndexHeaderMap = false; 1100 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 1101 OPT_index_header_map), 1102 ie = Args.filtered_end(); it != ie; ++it) { 1103 if ((*it)->getOption().matches(OPT_index_header_map)) { 1104 // -index-header-map applies to the next -I or -F. 1105 IsIndexHeaderMap = true; 1106 continue; 1107 } 1108 1109 frontend::IncludeDirGroup Group 1110 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 1111 1112 Opts.AddPath((*it)->getValue(), Group, 1113 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true); 1114 IsIndexHeaderMap = false; 1115 } 1116 1117 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1118 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1119 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 1120 OPT_iwithprefixbefore), 1121 ie = Args.filtered_end(); it != ie; ++it) { 1122 const Arg *A = *it; 1123 if (A->getOption().matches(OPT_iprefix)) 1124 Prefix = A->getValue(); 1125 else if (A->getOption().matches(OPT_iwithprefix)) 1126 Opts.AddPath(Prefix.str() + A->getValue(), 1127 frontend::After, false, true); 1128 else 1129 Opts.AddPath(Prefix.str() + A->getValue(), 1130 frontend::Angled, false, true); 1131 } 1132 1133 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 1134 ie = Args.filtered_end(); it != ie; ++it) 1135 Opts.AddPath((*it)->getValue(), frontend::After, false, true); 1136 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 1137 ie = Args.filtered_end(); it != ie; ++it) 1138 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true); 1139 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 1140 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 1141 Opts.AddPath((*it)->getValue(), frontend::System, false, 1142 !(*it)->getOption().matches(OPT_iwithsysroot)); 1143 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 1144 ie = Args.filtered_end(); it != ie; ++it) 1145 Opts.AddPath((*it)->getValue(), frontend::System, true, true); 1146 1147 // Add the paths for the various language specific isystem flags. 1148 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 1149 ie = Args.filtered_end(); it != ie; ++it) 1150 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true); 1151 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 1152 ie = Args.filtered_end(); it != ie; ++it) 1153 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true); 1154 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 1155 ie = Args.filtered_end(); it != ie; ++it) 1156 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true); 1157 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 1158 ie = Args.filtered_end(); it != ie; ++it) 1159 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true); 1160 1161 // Add the internal paths from a driver that detects standard include paths. 1162 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 1163 OPT_internal_externc_isystem), 1164 E = Args.filtered_end(); 1165 I != E; ++I) { 1166 frontend::IncludeDirGroup Group = frontend::System; 1167 if ((*I)->getOption().matches(OPT_internal_externc_isystem)) 1168 Group = frontend::ExternCSystem; 1169 Opts.AddPath((*I)->getValue(), Group, false, true); 1170 } 1171 1172 // Add the path prefixes which are implicitly treated as being system headers. 1173 for (arg_iterator I = Args.filtered_begin(OPT_system_header_prefix, 1174 OPT_no_system_header_prefix), 1175 E = Args.filtered_end(); 1176 I != E; ++I) 1177 Opts.AddSystemHeaderPrefix( 1178 (*I)->getValue(), (*I)->getOption().matches(OPT_system_header_prefix)); 1179 1180 for (arg_iterator I = Args.filtered_begin(OPT_ivfsoverlay), 1181 E = Args.filtered_end(); I != E; ++I) 1182 Opts.AddVFSOverlayFile((*I)->getValue()); 1183 } 1184 1185 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1186 LangStandard::Kind LangStd) { 1187 // Set some properties which depend solely on the input kind; it would be nice 1188 // to move these to the language standard, and have the driver resolve the 1189 // input kind + language standard. 1190 if (IK == IK_Asm) { 1191 Opts.AsmPreprocessor = 1; 1192 } else if (IK == IK_ObjC || 1193 IK == IK_ObjCXX || 1194 IK == IK_PreprocessedObjC || 1195 IK == IK_PreprocessedObjCXX) { 1196 Opts.ObjC1 = Opts.ObjC2 = 1; 1197 } 1198 1199 if (LangStd == LangStandard::lang_unspecified) { 1200 // Based on the base language, pick one. 1201 switch (IK) { 1202 case IK_None: 1203 case IK_AST: 1204 case IK_LLVM_IR: 1205 llvm_unreachable("Invalid input kind!"); 1206 case IK_OpenCL: 1207 LangStd = LangStandard::lang_opencl; 1208 break; 1209 case IK_CUDA: 1210 case IK_PreprocessedCuda: 1211 LangStd = LangStandard::lang_cuda; 1212 break; 1213 case IK_Asm: 1214 case IK_C: 1215 case IK_PreprocessedC: 1216 case IK_ObjC: 1217 case IK_PreprocessedObjC: 1218 LangStd = LangStandard::lang_gnu11; 1219 break; 1220 case IK_CXX: 1221 case IK_PreprocessedCXX: 1222 case IK_ObjCXX: 1223 case IK_PreprocessedObjCXX: 1224 LangStd = LangStandard::lang_gnucxx98; 1225 break; 1226 } 1227 } 1228 1229 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1230 Opts.LineComment = Std.hasLineComments(); 1231 Opts.C99 = Std.isC99(); 1232 Opts.C11 = Std.isC11(); 1233 Opts.CPlusPlus = Std.isCPlusPlus(); 1234 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1235 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1236 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1237 Opts.Digraphs = Std.hasDigraphs(); 1238 Opts.GNUMode = Std.isGNUMode(); 1239 Opts.GNUInline = Std.isC89(); 1240 Opts.HexFloats = Std.hasHexFloats(); 1241 Opts.ImplicitInt = Std.hasImplicitInt(); 1242 1243 // Set OpenCL Version. 1244 Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; 1245 if (LangStd == LangStandard::lang_opencl) 1246 Opts.OpenCLVersion = 100; 1247 else if (LangStd == LangStandard::lang_opencl11) 1248 Opts.OpenCLVersion = 110; 1249 else if (LangStd == LangStandard::lang_opencl12) 1250 Opts.OpenCLVersion = 120; 1251 else if (LangStd == LangStandard::lang_opencl20) 1252 Opts.OpenCLVersion = 200; 1253 1254 // OpenCL has some additional defaults. 1255 if (Opts.OpenCL) { 1256 Opts.AltiVec = 0; 1257 Opts.CXXOperatorNames = 1; 1258 Opts.LaxVectorConversions = 0; 1259 Opts.DefaultFPContract = 1; 1260 Opts.NativeHalfType = 1; 1261 } 1262 1263 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1264 LangStd == LangStandard::lang_cuda; 1265 1266 // OpenCL and C++ both have bool, true, false keywords. 1267 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1268 1269 // OpenCL has half keyword 1270 Opts.Half = Opts.OpenCL; 1271 1272 // C++ has wchar_t keyword. 1273 Opts.WChar = Opts.CPlusPlus; 1274 1275 Opts.GNUKeywords = Opts.GNUMode; 1276 Opts.CXXOperatorNames = Opts.CPlusPlus; 1277 1278 Opts.DollarIdents = !Opts.AsmPreprocessor; 1279 } 1280 1281 /// Attempt to parse a visibility value out of the given argument. 1282 static Visibility parseVisibility(Arg *arg, ArgList &args, 1283 DiagnosticsEngine &diags) { 1284 StringRef value = arg->getValue(); 1285 if (value == "default") { 1286 return DefaultVisibility; 1287 } else if (value == "hidden") { 1288 return HiddenVisibility; 1289 } else if (value == "protected") { 1290 // FIXME: diagnose if target does not support protected visibility 1291 return ProtectedVisibility; 1292 } 1293 1294 diags.Report(diag::err_drv_invalid_value) 1295 << arg->getAsString(args) << value; 1296 return DefaultVisibility; 1297 } 1298 1299 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1300 DiagnosticsEngine &Diags) { 1301 // FIXME: Cleanup per-file based stuff. 1302 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1303 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1304 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1305 #define LANGSTANDARD(id, name, desc, features) \ 1306 .Case(name, LangStandard::lang_##id) 1307 #include "clang/Frontend/LangStandards.def" 1308 .Default(LangStandard::lang_unspecified); 1309 if (LangStd == LangStandard::lang_unspecified) 1310 Diags.Report(diag::err_drv_invalid_value) 1311 << A->getAsString(Args) << A->getValue(); 1312 else { 1313 // Valid standard, check to make sure language and standard are 1314 // compatible. 1315 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1316 switch (IK) { 1317 case IK_C: 1318 case IK_ObjC: 1319 case IK_PreprocessedC: 1320 case IK_PreprocessedObjC: 1321 if (!(Std.isC89() || Std.isC99())) 1322 Diags.Report(diag::err_drv_argument_not_allowed_with) 1323 << A->getAsString(Args) << "C/ObjC"; 1324 break; 1325 case IK_CXX: 1326 case IK_ObjCXX: 1327 case IK_PreprocessedCXX: 1328 case IK_PreprocessedObjCXX: 1329 if (!Std.isCPlusPlus()) 1330 Diags.Report(diag::err_drv_argument_not_allowed_with) 1331 << A->getAsString(Args) << "C++/ObjC++"; 1332 break; 1333 case IK_OpenCL: 1334 if (!Std.isC99()) 1335 Diags.Report(diag::err_drv_argument_not_allowed_with) 1336 << A->getAsString(Args) << "OpenCL"; 1337 break; 1338 case IK_CUDA: 1339 case IK_PreprocessedCuda: 1340 if (!Std.isCPlusPlus()) 1341 Diags.Report(diag::err_drv_argument_not_allowed_with) 1342 << A->getAsString(Args) << "CUDA"; 1343 break; 1344 default: 1345 break; 1346 } 1347 } 1348 } 1349 1350 // -cl-std only applies for OpenCL language standards. 1351 // Override the -std option in this case. 1352 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1353 LangStandard::Kind OpenCLLangStd 1354 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1355 .Case("CL", LangStandard::lang_opencl) 1356 .Case("CL1.1", LangStandard::lang_opencl11) 1357 .Case("CL1.2", LangStandard::lang_opencl12) 1358 .Case("CL2.0", LangStandard::lang_opencl20) 1359 .Default(LangStandard::lang_unspecified); 1360 1361 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1362 Diags.Report(diag::err_drv_invalid_value) 1363 << A->getAsString(Args) << A->getValue(); 1364 } 1365 else 1366 LangStd = OpenCLLangStd; 1367 } 1368 1369 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1370 1371 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1372 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1373 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1374 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1375 // name, as it doesn't seem a useful distinction. 1376 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1377 Opts.GNUKeywords); 1378 1379 if (Args.hasArg(OPT_fno_operator_names)) 1380 Opts.CXXOperatorNames = 0; 1381 1382 if (Args.hasArg(OPT_fcuda_is_device)) 1383 Opts.CUDAIsDevice = 1; 1384 1385 if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device)) 1386 Opts.CUDAAllowHostCallsFromHostDevice = 1; 1387 1388 if (Args.hasArg(OPT_fcuda_disable_target_call_checks)) 1389 Opts.CUDADisableTargetCallChecks = 1; 1390 1391 if (Opts.ObjC1) { 1392 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1393 StringRef value = arg->getValue(); 1394 if (Opts.ObjCRuntime.tryParse(value)) 1395 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1396 } 1397 1398 if (Args.hasArg(OPT_fobjc_gc_only)) 1399 Opts.setGC(LangOptions::GCOnly); 1400 else if (Args.hasArg(OPT_fobjc_gc)) 1401 Opts.setGC(LangOptions::HybridGC); 1402 else if (Args.hasArg(OPT_fobjc_arc)) { 1403 Opts.ObjCAutoRefCount = 1; 1404 if (!Opts.ObjCRuntime.allowsARC()) 1405 Diags.Report(diag::err_arc_unsupported_on_runtime); 1406 1407 // Only set ObjCARCWeak if ARC is enabled. 1408 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1409 Opts.ObjCARCWeak = 1; 1410 else 1411 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1412 } 1413 1414 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1415 Opts.ObjCInferRelatedResultType = 0; 1416 1417 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1418 Opts.ObjCSubscriptingLegacyRuntime = 1419 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1420 } 1421 1422 if (Args.hasArg(OPT_fgnu89_inline)) { 1423 if (Opts.CPlusPlus) 1424 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1425 << "C++/ObjC++"; 1426 else 1427 Opts.GNUInline = 1; 1428 } 1429 1430 if (Args.hasArg(OPT_fapple_kext)) { 1431 if (!Opts.CPlusPlus) 1432 Diags.Report(diag::warn_c_kext); 1433 else 1434 Opts.AppleKext = 1; 1435 } 1436 1437 if (Args.hasArg(OPT_print_ivar_layout)) 1438 Opts.ObjCGCBitmapPrint = 1; 1439 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1440 Opts.NoConstantCFStrings = 1; 1441 1442 if (Args.hasArg(OPT_faltivec)) 1443 Opts.AltiVec = 1; 1444 1445 if (Args.hasArg(OPT_pthread)) 1446 Opts.POSIXThreads = 1; 1447 1448 // The value-visibility mode defaults to "default". 1449 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1450 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1451 } else { 1452 Opts.setValueVisibilityMode(DefaultVisibility); 1453 } 1454 1455 // The type-visibility mode defaults to the value-visibility mode. 1456 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1457 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1458 } else { 1459 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1460 } 1461 1462 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1463 Opts.InlineVisibilityHidden = 1; 1464 1465 if (Args.hasArg(OPT_ftrapv)) { 1466 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1467 // Set the handler, if one is specified. 1468 Opts.OverflowHandler = 1469 Args.getLastArgValue(OPT_ftrapv_handler); 1470 } 1471 else if (Args.hasArg(OPT_fwrapv)) 1472 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1473 1474 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1475 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1476 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1477 Opts.MSCompatibilityVersion = 0; 1478 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1479 VersionTuple VT; 1480 if (VT.tryParse(A->getValue())) 1481 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1482 << A->getValue(); 1483 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1484 VT.getMinor().getValueOr(0) * 100000 + 1485 VT.getSubminor().getValueOr(0); 1486 } 1487 1488 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1489 // is specified, or -std is set to a conforming mode. 1490 // Trigraphs are disabled by default in c++1z onwards. 1491 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1492 Opts.Trigraphs = 1493 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1494 1495 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1496 OPT_fno_dollars_in_identifiers, 1497 Opts.DollarIdents); 1498 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1499 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1500 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1501 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1502 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1503 Opts.ConstStrings); 1504 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1505 Opts.LaxVectorConversions = 0; 1506 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1507 Opts.ThreadsafeStatics = 0; 1508 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1509 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1510 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1511 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1512 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1513 1514 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1515 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1516 Opts.Blocks = Args.hasArg(OPT_fblocks); 1517 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1518 Opts.Modules = Args.hasArg(OPT_fmodules); 1519 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1520 Opts.ModulesDeclUse = 1521 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1522 Opts.ModulesLocalVisibility = 1523 Args.hasArg(OPT_fmodules_local_submodule_visibility); 1524 Opts.ModulesSearchAll = Opts.Modules && 1525 !Args.hasArg(OPT_fno_modules_search_all) && 1526 Args.hasArg(OPT_fmodules_search_all); 1527 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1528 Opts.ModulesImplicitMaps = Args.hasFlag(OPT_fmodules_implicit_maps, 1529 OPT_fno_modules_implicit_maps, true); 1530 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1531 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1532 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1533 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1534 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1535 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1536 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1537 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1538 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1539 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1540 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1541 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1542 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1543 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1544 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1545 Opts.InstantiationDepth = 1546 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); 1547 Opts.ArrowDepth = 1548 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1549 Opts.ConstexprCallDepth = 1550 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1551 Opts.ConstexprStepLimit = 1552 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1553 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1554 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1555 Opts.NumLargeByValueCopy = 1556 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1557 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1558 Opts.ObjCConstantStringClass = 1559 Args.getLastArgValue(OPT_fconstant_string_class); 1560 Opts.ObjCDefaultSynthProperties = 1561 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1562 Opts.EncodeExtendedBlockSig = 1563 Args.hasArg(OPT_fencode_extended_block_signature); 1564 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1565 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1566 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1567 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1568 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags); 1569 Opts.Static = Args.hasArg(OPT_static_define); 1570 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1571 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1572 || Args.hasArg(OPT_fdump_record_layouts); 1573 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1574 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1575 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1576 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1577 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1578 Opts.MRTD = Args.hasArg(OPT_mrtd); 1579 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1580 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1581 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1582 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1583 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1584 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1585 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1586 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1587 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 1588 Opts.ImplementationOfModule = 1589 Args.getLastArgValue(OPT_fmodule_implementation_of); 1590 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 1591 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 1592 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); 1593 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 1594 1595 if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && 1596 Opts.CurrentModule != Opts.ImplementationOfModule) { 1597 Diags.Report(diag::err_conflicting_module_names) 1598 << Opts.CurrentModule << Opts.ImplementationOfModule; 1599 } 1600 1601 // For now, we only support local submodule visibility in C++ (because we 1602 // heavily depend on the ODR for merging redefinitions). 1603 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 1604 Diags.Report(diag::err_drv_argument_not_allowed_with) 1605 << "-fmodules-local-submodule-visibility" << "C"; 1606 1607 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 1608 switch (llvm::StringSwitch<unsigned>(A->getValue()) 1609 .Case("target", LangOptions::ASMM_Target) 1610 .Case("no", LangOptions::ASMM_Off) 1611 .Case("yes", LangOptions::ASMM_On) 1612 .Default(255)) { 1613 default: 1614 Diags.Report(diag::err_drv_invalid_value) 1615 << "-faddress-space-map-mangling=" << A->getValue(); 1616 break; 1617 case LangOptions::ASMM_Target: 1618 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 1619 break; 1620 case LangOptions::ASMM_On: 1621 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 1622 break; 1623 case LangOptions::ASMM_Off: 1624 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 1625 break; 1626 } 1627 } 1628 1629 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 1630 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 1631 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 1632 A->getValue()) 1633 .Case("single", 1634 LangOptions::PPTMK_FullGeneralitySingleInheritance) 1635 .Case("multiple", 1636 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 1637 .Case("virtual", 1638 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 1639 .Default(LangOptions::PPTMK_BestCase); 1640 if (InheritanceModel == LangOptions::PPTMK_BestCase) 1641 Diags.Report(diag::err_drv_invalid_value) 1642 << "-fms-memptr-rep=" << A->getValue(); 1643 1644 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 1645 } 1646 1647 // Check if -fopenmp is specified. 1648 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp); 1649 1650 // Record whether the __DEPRECATED define was requested. 1651 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1652 OPT_fno_deprecated_macro, 1653 Opts.Deprecated); 1654 1655 // FIXME: Eliminate this dependency. 1656 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1657 OptSize = getOptimizationLevelSize(Args); 1658 Opts.Optimize = Opt != 0; 1659 Opts.OptimizeSize = OptSize != 0; 1660 1661 // This is the __NO_INLINE__ define, which just depends on things like the 1662 // optimization level and -fno-inline, not actually whether the backend has 1663 // inlining enabled. 1664 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1665 1666 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1667 Args.hasArg(OPT_cl_fast_relaxed_math); 1668 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 1669 Args.hasArg(OPT_cl_finite_math_only) || 1670 Args.hasArg(OPT_cl_fast_relaxed_math); 1671 1672 Opts.RetainCommentsFromSystemHeaders = 1673 Args.hasArg(OPT_fretain_comments_from_system_headers); 1674 1675 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 1676 switch (SSP) { 1677 default: 1678 Diags.Report(diag::err_drv_invalid_value) 1679 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1680 break; 1681 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1682 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1683 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 1684 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 1685 } 1686 1687 // Parse -fsanitize= arguments. 1688 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 1689 Diags, Opts.Sanitize); 1690 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 1691 Opts.SanitizeAddressFieldPadding = 1692 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 1693 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 1694 } 1695 1696 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1697 FileManager &FileMgr, 1698 DiagnosticsEngine &Diags) { 1699 using namespace options; 1700 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1701 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1702 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1703 Opts.TokenCache = A->getValue(); 1704 else 1705 Opts.TokenCache = Opts.ImplicitPTHInclude; 1706 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1707 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1708 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1709 1710 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1711 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1712 ie = Args.filtered_end(); it != ie; ++it) { 1713 const Arg *A = *it; 1714 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1715 } 1716 1717 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1718 StringRef Value(A->getValue()); 1719 size_t Comma = Value.find(','); 1720 unsigned Bytes = 0; 1721 unsigned EndOfLine = 0; 1722 1723 if (Comma == StringRef::npos || 1724 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1725 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1726 Diags.Report(diag::err_drv_preamble_format); 1727 else { 1728 Opts.PrecompiledPreambleBytes.first = Bytes; 1729 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1730 } 1731 } 1732 1733 // Add macros from the command line. 1734 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1735 ie = Args.filtered_end(); it != ie; ++it) { 1736 if ((*it)->getOption().matches(OPT_D)) 1737 Opts.addMacroDef((*it)->getValue()); 1738 else 1739 Opts.addMacroUndef((*it)->getValue()); 1740 } 1741 1742 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1743 1744 // Add the ordered list of -includes. 1745 for (arg_iterator it = Args.filtered_begin(OPT_include), 1746 ie = Args.filtered_end(); it != ie; ++it) { 1747 const Arg *A = *it; 1748 Opts.Includes.push_back(A->getValue()); 1749 } 1750 1751 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1752 ie = Args.filtered_end(); it != ie; ++it) { 1753 const Arg *A = *it; 1754 Opts.ChainedIncludes.push_back(A->getValue()); 1755 } 1756 1757 // Include 'altivec.h' if -faltivec option present 1758 if (Args.hasArg(OPT_faltivec)) 1759 Opts.Includes.push_back("altivec.h"); 1760 1761 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1762 ie = Args.filtered_end(); it != ie; ++it) { 1763 const Arg *A = *it; 1764 std::pair<StringRef,StringRef> Split = 1765 StringRef(A->getValue()).split(';'); 1766 1767 if (Split.second.empty()) { 1768 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1769 continue; 1770 } 1771 1772 Opts.addRemappedFile(Split.first, Split.second); 1773 } 1774 1775 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1776 StringRef Name = A->getValue(); 1777 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1778 .Case("libc++", ARCXX_libcxx) 1779 .Case("libstdc++", ARCXX_libstdcxx) 1780 .Case("none", ARCXX_nolib) 1781 .Default(~0U); 1782 if (Library == ~0U) 1783 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1784 else 1785 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1786 } 1787 } 1788 1789 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1790 ArgList &Args, 1791 frontend::ActionKind Action) { 1792 using namespace options; 1793 1794 switch (Action) { 1795 case frontend::ASTDeclList: 1796 case frontend::ASTDump: 1797 case frontend::ASTPrint: 1798 case frontend::ASTView: 1799 case frontend::EmitAssembly: 1800 case frontend::EmitBC: 1801 case frontend::EmitHTML: 1802 case frontend::EmitLLVM: 1803 case frontend::EmitLLVMOnly: 1804 case frontend::EmitCodeGenOnly: 1805 case frontend::EmitObj: 1806 case frontend::FixIt: 1807 case frontend::GenerateModule: 1808 case frontend::GeneratePCH: 1809 case frontend::GeneratePTH: 1810 case frontend::ParseSyntaxOnly: 1811 case frontend::ModuleFileInfo: 1812 case frontend::VerifyPCH: 1813 case frontend::PluginAction: 1814 case frontend::PrintDeclContext: 1815 case frontend::RewriteObjC: 1816 case frontend::RewriteTest: 1817 case frontend::RunAnalysis: 1818 case frontend::MigrateSource: 1819 Opts.ShowCPP = 0; 1820 break; 1821 1822 case frontend::DumpRawTokens: 1823 case frontend::DumpTokens: 1824 case frontend::InitOnly: 1825 case frontend::PrintPreamble: 1826 case frontend::PrintPreprocessedInput: 1827 case frontend::RewriteMacros: 1828 case frontend::RunPreprocessorOnly: 1829 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1830 break; 1831 } 1832 1833 Opts.ShowComments = Args.hasArg(OPT_C); 1834 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1835 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1836 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1837 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1838 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 1839 } 1840 1841 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1842 using namespace options; 1843 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1844 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1845 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 1846 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1847 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1848 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1849 1850 // Use the default target triple if unspecified. 1851 if (Opts.Triple.empty()) 1852 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1853 } 1854 1855 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1856 const char *const *ArgBegin, 1857 const char *const *ArgEnd, 1858 DiagnosticsEngine &Diags) { 1859 bool Success = true; 1860 1861 // Parse the arguments. 1862 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 1863 const unsigned IncludedFlagsBitmask = options::CC1Option; 1864 unsigned MissingArgIndex, MissingArgCount; 1865 std::unique_ptr<InputArgList> Args( 1866 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount, 1867 IncludedFlagsBitmask)); 1868 1869 // Check for missing argument error. 1870 if (MissingArgCount) { 1871 Diags.Report(diag::err_drv_missing_argument) 1872 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1873 Success = false; 1874 } 1875 1876 // Issue errors on unknown arguments. 1877 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1878 ie = Args->filtered_end(); it != ie; ++it) { 1879 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1880 Success = false; 1881 } 1882 1883 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 1884 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 1885 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1886 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 1887 && Success; 1888 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args); 1889 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1890 // FIXME: We shouldn't have to pass the DashX option around here 1891 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1892 ParseTargetArgs(Res.getTargetOpts(), *Args); 1893 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags, 1894 Res.getTargetOpts()) && Success; 1895 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1896 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1897 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 1898 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1899 Res.getLangOpts()->ObjCExceptions = 1; 1900 } 1901 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1902 // PCH file and find the original header name. Remove the need to do that in 1903 // ParsePreprocessorArgs and remove the FileManager 1904 // parameters from the function and the "FileManager.h" #include. 1905 FileManager FileMgr(Res.getFileSystemOpts()); 1906 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1907 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args, 1908 Res.getFrontendOpts().ProgramAction); 1909 return Success; 1910 } 1911 1912 namespace { 1913 1914 class ModuleSignature { 1915 SmallVector<uint64_t, 16> Data; 1916 unsigned CurBit; 1917 uint64_t CurValue; 1918 1919 public: 1920 ModuleSignature() : CurBit(0), CurValue(0) { } 1921 1922 void add(uint64_t Value, unsigned Bits); 1923 void add(StringRef Value); 1924 void flush(); 1925 1926 llvm::APInt getAsInteger() const; 1927 }; 1928 } 1929 1930 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1931 CurValue |= Value << CurBit; 1932 if (CurBit + NumBits < 64) { 1933 CurBit += NumBits; 1934 return; 1935 } 1936 1937 // Add the current word. 1938 Data.push_back(CurValue); 1939 1940 if (CurBit) 1941 CurValue = Value >> (64-CurBit); 1942 else 1943 CurValue = 0; 1944 CurBit = (CurBit+NumBits) & 63; 1945 } 1946 1947 void ModuleSignature::flush() { 1948 if (CurBit == 0) 1949 return; 1950 1951 Data.push_back(CurValue); 1952 CurBit = 0; 1953 CurValue = 0; 1954 } 1955 1956 void ModuleSignature::add(StringRef Value) { 1957 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1958 add(*I, 8); 1959 } 1960 1961 llvm::APInt ModuleSignature::getAsInteger() const { 1962 return llvm::APInt(Data.size() * 64, Data); 1963 } 1964 1965 std::string CompilerInvocation::getModuleHash() const { 1966 // Note: For QoI reasons, the things we use as a hash here should all be 1967 // dumped via the -module-info flag. 1968 using llvm::hash_code; 1969 using llvm::hash_value; 1970 using llvm::hash_combine; 1971 1972 // Start the signature with the compiler version. 1973 // FIXME: We'd rather use something more cryptographically sound than 1974 // CityHash, but this will do for now. 1975 hash_code code = hash_value(getClangFullRepositoryVersion()); 1976 1977 // Extend the signature with the language options 1978 #define LANGOPT(Name, Bits, Default, Description) \ 1979 code = hash_combine(code, LangOpts->Name); 1980 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1981 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 1982 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1983 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1984 #include "clang/Basic/LangOptions.def" 1985 1986 // Extend the signature with the target options. 1987 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 1988 TargetOpts->ABI); 1989 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 1990 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 1991 1992 // Extend the signature with preprocessor options. 1993 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 1994 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 1995 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 1996 1997 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 1998 I = getPreprocessorOpts().Macros.begin(), 1999 IEnd = getPreprocessorOpts().Macros.end(); 2000 I != IEnd; ++I) { 2001 // If we're supposed to ignore this macro for the purposes of modules, 2002 // don't put it into the hash. 2003 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2004 // Check whether we're ignoring this macro. 2005 StringRef MacroDef = I->first; 2006 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 2007 continue; 2008 } 2009 2010 code = hash_combine(code, I->first, I->second); 2011 } 2012 2013 // Extend the signature with the sysroot. 2014 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 2015 hsOpts.UseStandardSystemIncludes, 2016 hsOpts.UseStandardCXXIncludes, 2017 hsOpts.UseLibcxx); 2018 code = hash_combine(code, hsOpts.ResourceDir); 2019 2020 // Extend the signature with the user build path. 2021 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2022 2023 // Darwin-specific hack: if we have a sysroot, use the contents and 2024 // modification time of 2025 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2026 // as part of the module hash. 2027 if (!hsOpts.Sysroot.empty()) { 2028 SmallString<128> systemVersionFile; 2029 systemVersionFile += hsOpts.Sysroot; 2030 llvm::sys::path::append(systemVersionFile, "System"); 2031 llvm::sys::path::append(systemVersionFile, "Library"); 2032 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2033 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2034 2035 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2036 llvm::MemoryBuffer::getFile(systemVersionFile); 2037 if (buffer) { 2038 code = hash_combine(code, buffer.get()->getBuffer()); 2039 2040 struct stat statBuf; 2041 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2042 code = hash_combine(code, statBuf.st_mtime); 2043 } 2044 } 2045 2046 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2047 } 2048 2049 namespace clang { 2050 2051 template<typename IntTy> 2052 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2053 IntTy Default, 2054 DiagnosticsEngine *Diags) { 2055 IntTy Res = Default; 2056 if (Arg *A = Args.getLastArg(Id)) { 2057 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2058 if (Diags) 2059 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2060 << A->getValue(); 2061 } 2062 } 2063 return Res; 2064 } 2065 2066 2067 // Declared in clang/Frontend/Utils.h. 2068 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2069 DiagnosticsEngine *Diags) { 2070 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2071 } 2072 2073 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2074 uint64_t Default, 2075 DiagnosticsEngine *Diags) { 2076 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2077 } 2078 2079 void BuryPointer(const void *Ptr) { 2080 // This function may be called only a small fixed amount of times per each 2081 // invocation, otherwise we do actually have a leak which we want to report. 2082 // If this function is called more than kGraveYardMaxSize times, the pointers 2083 // will not be properly buried and a leak detector will report a leak, which 2084 // is what we want in such case. 2085 static const size_t kGraveYardMaxSize = 16; 2086 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2087 static std::atomic<unsigned> GraveYardSize; 2088 unsigned Idx = GraveYardSize++; 2089 if (Idx >= kGraveYardMaxSize) 2090 return; 2091 GraveYard[Idx] = Ptr; 2092 } 2093 2094 IntrusiveRefCntPtr<vfs::FileSystem> 2095 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2096 DiagnosticsEngine &Diags) { 2097 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2098 return vfs::getRealFileSystem(); 2099 2100 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2101 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2102 // earlier vfs files are on the bottom 2103 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2104 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2105 llvm::MemoryBuffer::getFile(File); 2106 if (!Buffer) { 2107 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2108 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2109 } 2110 2111 IntrusiveRefCntPtr<vfs::FileSystem> FS = 2112 vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); 2113 if (!FS.get()) { 2114 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2115 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2116 } 2117 Overlay->pushOverlay(FS); 2118 } 2119 return Overlay; 2120 } 2121 } // end namespace clang 2122