1 //===--- CompilerInvocation.cpp -------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "clang/Frontend/CompilerInvocation.h"
11 #include "clang/Basic/Diagnostic.h"
12 #include "clang/Basic/FileManager.h"
13 #include "clang/Basic/Version.h"
14 #include "clang/Driver/DriverDiagnostic.h"
15 #include "clang/Driver/Options.h"
16 #include "clang/Driver/Util.h"
17 #include "clang/Frontend/LangStandard.h"
18 #include "clang/Frontend/Utils.h"
19 #include "clang/Lex/HeaderSearchOptions.h"
20 #include "clang/Serialization/ASTReader.h"
21 #include "llvm/ADT/Hashing.h"
22 #include "llvm/ADT/OwningPtr.h"
23 #include "llvm/ADT/SmallVector.h"
24 #include "llvm/ADT/StringExtras.h"
25 #include "llvm/ADT/StringSwitch.h"
26 #include "llvm/ADT/Triple.h"
27 #include "llvm/Option/Arg.h"
28 #include "llvm/Option/ArgList.h"
29 #include "llvm/Option/OptTable.h"
30 #include "llvm/Option/Option.h"
31 #include "llvm/Support/ErrorHandling.h"
32 #include "llvm/Support/FileSystem.h"
33 #include "llvm/Support/Host.h"
34 #include "llvm/Support/Path.h"
35 #include "llvm/Support/Process.h"
36 #include "llvm/Support/system_error.h"
38 using namespace clang;
40 //===----------------------------------------------------------------------===//
42 //===----------------------------------------------------------------------===//
44 CompilerInvocationBase::CompilerInvocationBase()
45 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
46 DiagnosticOpts(new DiagnosticOptions()),
47 HeaderSearchOpts(new HeaderSearchOptions()),
48 PreprocessorOpts(new PreprocessorOptions()) {}
50 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
51 : RefCountedBase<CompilerInvocation>(),
52 LangOpts(new LangOptions(*X.getLangOpts())),
53 TargetOpts(new TargetOptions(X.getTargetOpts())),
54 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
55 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
56 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
58 //===----------------------------------------------------------------------===//
59 // Deserialization (from args)
60 //===----------------------------------------------------------------------===//
62 using namespace clang::driver;
63 using namespace clang::driver::options;
64 using namespace llvm::opt;
68 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
69 DiagnosticsEngine &Diags) {
70 unsigned DefaultOpt = 0;
71 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
74 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
75 if (A->getOption().matches(options::OPT_O0))
78 if (A->getOption().matches(options::OPT_Ofast))
81 assert (A->getOption().matches(options::OPT_O));
83 StringRef S(A->getValue());
84 if (S == "s" || S == "z" || S.empty())
87 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
93 static unsigned getOptimizationLevelSize(ArgList &Args) {
94 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
95 if (A->getOption().matches(options::OPT_O)) {
96 switch (A->getValue()[0]) {
109 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) {
110 for (arg_iterator I = Args.filtered_begin(OPT_W_Group),
111 E = Args.filtered_end(); I != E; ++I) {
113 // If the argument is a pure flag, add its name (minus the "W" at the beginning)
114 // to the warning list. Else, add its value (for the OPT_W case).
115 if (A->getOption().getKind() == Option::FlagClass) {
116 Warnings.push_back(A->getOption().getName().substr(1));
118 for (unsigned Idx = 0, End = A->getNumValues();
120 StringRef V = A->getValue(Idx);
121 // "-Wl," and such are not warning options.
122 // FIXME: Should be handled by putting these in separate flags.
123 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,"))
126 Warnings.push_back(V);
132 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
133 DiagnosticsEngine &Diags) {
134 using namespace options;
136 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
137 StringRef Name = A->getValue();
138 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
139 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
140 .Case(CMDFLAG, NAME##Model)
141 #include "clang/StaticAnalyzer/Core/Analyses.def"
143 if (Value == NumStores) {
144 Diags.Report(diag::err_drv_invalid_value)
145 << A->getAsString(Args) << Name;
148 Opts.AnalysisStoreOpt = Value;
152 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
153 StringRef Name = A->getValue();
154 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
155 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
156 .Case(CMDFLAG, NAME##Model)
157 #include "clang/StaticAnalyzer/Core/Analyses.def"
158 .Default(NumConstraints);
159 if (Value == NumConstraints) {
160 Diags.Report(diag::err_drv_invalid_value)
161 << A->getAsString(Args) << Name;
164 Opts.AnalysisConstraintsOpt = Value;
168 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
169 StringRef Name = A->getValue();
170 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
171 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
172 .Case(CMDFLAG, PD_##NAME)
173 #include "clang/StaticAnalyzer/Core/Analyses.def"
174 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
175 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
176 Diags.Report(diag::err_drv_invalid_value)
177 << A->getAsString(Args) << Name;
180 Opts.AnalysisDiagOpt = Value;
184 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
185 StringRef Name = A->getValue();
186 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
187 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
189 #include "clang/StaticAnalyzer/Core/Analyses.def"
190 .Default(NumPurgeModes);
191 if (Value == NumPurgeModes) {
192 Diags.Report(diag::err_drv_invalid_value)
193 << A->getAsString(Args) << Name;
196 Opts.AnalysisPurgeOpt = Value;
200 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
201 StringRef Name = A->getValue();
202 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
203 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
205 #include "clang/StaticAnalyzer/Core/Analyses.def"
206 .Default(NumInliningModes);
207 if (Value == NumInliningModes) {
208 Diags.Report(diag::err_drv_invalid_value)
209 << A->getAsString(Args) << Name;
212 Opts.InliningMode = Value;
216 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
217 Opts.visualizeExplodedGraphWithGraphViz =
218 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
219 Opts.visualizeExplodedGraphWithUbiGraph =
220 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
221 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
222 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
223 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
224 Opts.AnalyzeNestedBlocks =
225 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
226 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
227 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
228 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
229 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
230 Opts.maxBlockVisitOnPath =
231 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
232 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
233 Opts.InlineMaxStackDepth =
234 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
235 Opts.InlineMaxStackDepth, Diags);
237 Opts.CheckersControlList.clear();
238 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker,
239 OPT_analyzer_disable_checker),
240 ie = Args.filtered_end(); it != ie; ++it) {
243 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
244 // We can have a list of comma separated checker names, e.g:
245 // '-analyzer-checker=cocoa,unix'
246 StringRef checkerList = A->getValue();
247 SmallVector<StringRef, 4> checkers;
248 checkerList.split(checkers, ",");
249 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
250 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable));
253 // Go through the analyzer configuration options.
254 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config),
255 ie = Args.filtered_end(); it != ie; ++it) {
258 // We can have a list of comma separated config names, e.g:
259 // '-analyzer-config key1=val1,key2=val2'
260 StringRef configList = A->getValue();
261 SmallVector<StringRef, 4> configVals;
262 configList.split(configVals, ",");
263 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
265 llvm::tie(key, val) = configVals[i].split("=");
267 Diags.Report(SourceLocation(),
268 diag::err_analyzer_config_no_value) << configVals[i];
272 if (val.find('=') != StringRef::npos) {
273 Diags.Report(SourceLocation(),
274 diag::err_analyzer_config_multiple_values)
279 Opts.Config[key] = val;
286 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
287 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
288 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
292 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
293 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
294 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
297 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
298 DiagnosticsEngine &Diags) {
299 using namespace options;
302 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
303 // TODO: This could be done in Driver
304 unsigned MaxOptLevel = 3;
305 if (Opts.OptimizationLevel > MaxOptLevel) {
306 // If the optimization level is not supported, fall back on the default optimization
307 Diags.Report(diag::warn_drv_optimization_value)
308 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
309 Opts.OptimizationLevel = MaxOptLevel;
312 // We must always run at least the always inlining pass.
314 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
315 : CodeGenOptions::OnlyAlwaysInlining);
316 // -fno-inline-functions overrides OptimizationLevel > 1.
317 Opts.NoInline = Args.hasArg(OPT_fno_inline);
318 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ?
319 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining());
321 if (Args.hasArg(OPT_gline_tables_only)) {
322 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly);
323 } else if (Args.hasArg(OPT_g_Flag) || Args.hasArg(OPT_gdwarf_2) ||
324 Args.hasArg(OPT_gdwarf_3) || Args.hasArg(OPT_gdwarf_4)) {
325 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true))
326 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo);
328 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo);
330 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
331 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
332 if (Args.hasArg(OPT_gdwarf_2))
333 Opts.DwarfVersion = 2;
334 else if (Args.hasArg(OPT_gdwarf_3))
335 Opts.DwarfVersion = 3;
336 else if (Args.hasArg(OPT_gdwarf_4))
337 Opts.DwarfVersion = 4;
338 else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo)
339 // Default Dwarf version is 4 if we are generating debug information.
340 Opts.DwarfVersion = 4;
342 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
343 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
344 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
345 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
346 OPT_fuse_register_sized_bitfield_access);
347 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
348 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
349 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
350 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
351 Opts.NoCommon = Args.hasArg(OPT_fno_common);
352 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
353 Opts.OptimizeSize = getOptimizationLevelSize(Args);
354 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
355 Args.hasArg(OPT_ffreestanding));
357 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
358 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize));
359 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
361 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
362 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
363 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
364 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
365 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device);
366 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
367 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
368 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
369 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
370 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
371 Opts.DisableFree = Args.hasArg(OPT_disable_free);
372 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
373 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
374 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables);
375 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
376 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
377 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
378 Args.hasArg(OPT_cl_finite_math_only)||
379 Args.hasArg(OPT_cl_fast_relaxed_math));
380 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
381 Args.hasArg(OPT_cl_finite_math_only)||
382 Args.hasArg(OPT_cl_fast_relaxed_math));
383 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
384 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
385 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
386 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge);
387 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
388 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
389 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
390 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
391 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
392 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm);
393 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
394 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
395 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
396 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
397 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
398 Args.hasArg(OPT_cl_fast_relaxed_math);
399 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
400 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
401 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
402 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
404 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
405 OPT_fno_function_sections, false);
406 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
407 OPT_fno_data_sections, false);
409 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
410 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
411 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
413 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
414 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
415 Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover);
417 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
418 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
419 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
420 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
421 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
422 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
423 Opts.CoverageNoFunctionNamesInData =
424 Args.hasArg(OPT_coverage_no_function_names_in_data);
425 if (Args.hasArg(OPT_coverage_version_EQ)) {
426 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
427 if (CoverageVersion.size() != 4) {
428 Diags.Report(diag::err_drv_invalid_value)
429 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
432 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
437 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
438 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
439 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
440 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
441 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file);
442 Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist);
443 Opts.SanitizeMemoryTrackOrigins =
444 Args.hasArg(OPT_fsanitize_memory_track_origins);
445 Opts.SanitizeAddressZeroBaseShadow =
446 Args.hasArg(OPT_fsanitize_address_zero_base_shadow);
447 Opts.SanitizeUndefinedTrapOnError =
448 Args.hasArg(OPT_fsanitize_undefined_trap_on_error);
450 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
451 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
452 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
453 StringRef Val = A->getValue();
454 unsigned StackAlignment = Opts.StackAlignment;
455 Val.getAsInteger(10, StackAlignment);
456 Opts.StackAlignment = StackAlignment;
459 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
460 StringRef Name = A->getValue();
461 unsigned Method = llvm::StringSwitch<unsigned>(Name)
462 .Case("legacy", CodeGenOptions::Legacy)
463 .Case("non-legacy", CodeGenOptions::NonLegacy)
464 .Case("mixed", CodeGenOptions::Mixed)
467 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
470 Opts.setObjCDispatchMethod(
471 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
475 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
476 StringRef Name = A->getValue();
477 unsigned Model = llvm::StringSwitch<unsigned>(Name)
478 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
479 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
480 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
481 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
484 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
487 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
491 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
492 StringRef Val = A->getValue();
494 Opts.setFPContractMode(CodeGenOptions::FPC_Fast);
495 else if (Val == "on")
496 Opts.setFPContractMode(CodeGenOptions::FPC_On);
497 else if (Val == "off")
498 Opts.setFPContractMode(CodeGenOptions::FPC_Off);
500 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
503 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
504 if (A->getOption().matches(OPT_fpcc_struct_return)) {
505 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
507 assert(A->getOption().matches(OPT_freg_struct_return));
508 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
512 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
517 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
519 using namespace options;
520 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
521 Opts.Targets = Args.getAllArgValues(OPT_MT);
522 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
523 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
524 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
525 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
526 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
527 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes);
528 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
531 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
532 DiagnosticsEngine *Diags) {
533 using namespace options;
536 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
537 Opts.DiagnosticSerializationFile =
538 Args.getLastArgValue(OPT_diagnostic_serialized_file);
539 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
540 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
541 Opts.Pedantic = Args.hasArg(OPT_pedantic);
542 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
543 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
544 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
545 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
548 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
549 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
550 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
552 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
554 // Default behavior is to not to show note include stacks.
555 Opts.ShowNoteIncludeStack = false;
556 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
557 OPT_fno_diagnostics_show_note_include_stack))
558 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
559 Opts.ShowNoteIncludeStack = true;
561 StringRef ShowOverloads =
562 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
563 if (ShowOverloads == "best")
564 Opts.setShowOverloads(Ovl_Best);
565 else if (ShowOverloads == "all")
566 Opts.setShowOverloads(Ovl_All);
570 Diags->Report(diag::err_drv_invalid_value)
571 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
575 StringRef ShowCategory =
576 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
577 if (ShowCategory == "none")
578 Opts.ShowCategories = 0;
579 else if (ShowCategory == "id")
580 Opts.ShowCategories = 1;
581 else if (ShowCategory == "name")
582 Opts.ShowCategories = 2;
586 Diags->Report(diag::err_drv_invalid_value)
587 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
592 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
593 if (Format == "clang")
594 Opts.setFormat(DiagnosticOptions::Clang);
595 else if (Format == "msvc")
596 Opts.setFormat(DiagnosticOptions::Msvc);
597 else if (Format == "msvc-fallback") {
598 Opts.setFormat(DiagnosticOptions::Msvc);
599 Opts.CLFallbackMode = true;
600 } else if (Format == "vi")
601 Opts.setFormat(DiagnosticOptions::Vi);
605 Diags->Report(diag::err_drv_invalid_value)
606 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
610 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
611 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
612 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
613 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
614 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
615 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
616 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
617 Opts.MacroBacktraceLimit =
618 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
619 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
620 Opts.TemplateBacktraceLimit = getLastArgIntValue(
621 Args, OPT_ftemplate_backtrace_limit,
622 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
623 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
624 Args, OPT_fconstexpr_backtrace_limit,
625 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
626 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
627 DiagnosticOptions::DefaultTabStop, Diags);
628 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
629 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
631 Diags->Report(diag::warn_ignoring_ftabstop_value)
632 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
634 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
635 addWarningArgs(Args, Opts.Warnings);
640 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
641 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
644 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
645 DiagnosticsEngine &Diags) {
646 using namespace options;
647 Opts.ProgramAction = frontend::ParseSyntaxOnly;
648 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
649 switch (A->getOption().getID()) {
651 llvm_unreachable("Invalid option in group!");
653 Opts.ProgramAction = frontend::ASTDeclList; break;
655 Opts.ProgramAction = frontend::ASTDump; break;
657 Opts.ProgramAction = frontend::ASTPrint; break;
659 Opts.ProgramAction = frontend::ASTView; break;
660 case OPT_dump_raw_tokens:
661 Opts.ProgramAction = frontend::DumpRawTokens; break;
662 case OPT_dump_tokens:
663 Opts.ProgramAction = frontend::DumpTokens; break;
665 Opts.ProgramAction = frontend::EmitAssembly; break;
666 case OPT_emit_llvm_bc:
667 Opts.ProgramAction = frontend::EmitBC; break;
669 Opts.ProgramAction = frontend::EmitHTML; break;
671 Opts.ProgramAction = frontend::EmitLLVM; break;
672 case OPT_emit_llvm_only:
673 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
674 case OPT_emit_codegen_only:
675 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
677 Opts.ProgramAction = frontend::EmitObj; break;
679 Opts.FixItSuffix = A->getValue();
682 Opts.ProgramAction = frontend::FixIt; break;
683 case OPT_emit_module:
684 Opts.ProgramAction = frontend::GenerateModule; break;
686 Opts.ProgramAction = frontend::GeneratePCH; break;
688 Opts.ProgramAction = frontend::GeneratePTH; break;
690 Opts.ProgramAction = frontend::InitOnly; break;
691 case OPT_fsyntax_only:
692 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
693 case OPT_module_file_info:
694 Opts.ProgramAction = frontend::ModuleFileInfo; break;
695 case OPT_print_decl_contexts:
696 Opts.ProgramAction = frontend::PrintDeclContext; break;
697 case OPT_print_preamble:
698 Opts.ProgramAction = frontend::PrintPreamble; break;
700 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
701 case OPT_rewrite_macros:
702 Opts.ProgramAction = frontend::RewriteMacros; break;
703 case OPT_rewrite_objc:
704 Opts.ProgramAction = frontend::RewriteObjC; break;
705 case OPT_rewrite_test:
706 Opts.ProgramAction = frontend::RewriteTest; break;
708 Opts.ProgramAction = frontend::RunAnalysis; break;
710 Opts.ProgramAction = frontend::MigrateSource; break;
712 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
716 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
717 Opts.Plugins.push_back(A->getValue(0));
718 Opts.ProgramAction = frontend::PluginAction;
719 Opts.ActionName = A->getValue();
721 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
722 end = Args.filtered_end(); it != end; ++it) {
723 if ((*it)->getValue(0) == Opts.ActionName)
724 Opts.PluginArgs.push_back((*it)->getValue(1));
728 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
729 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
730 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) {
731 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
732 end = Args.filtered_end(); it != end; ++it) {
733 if ((*it)->getValue(0) == Opts.AddPluginActions[i])
734 Opts.AddPluginArgs[i].push_back((*it)->getValue(1));
738 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
739 Opts.CodeCompletionAt =
740 ParsedSourceLocation::FromString(A->getValue());
741 if (Opts.CodeCompletionAt.FileName.empty())
742 Diags.Report(diag::err_drv_invalid_value)
743 << A->getAsString(Args) << A->getValue();
745 Opts.DisableFree = Args.hasArg(OPT_disable_free);
747 Opts.OutputFile = Args.getLastArgValue(OPT_o);
748 Opts.Plugins = Args.getAllArgValues(OPT_load);
749 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
750 Opts.ShowHelp = Args.hasArg(OPT_help);
751 Opts.ShowStats = Args.hasArg(OPT_print_stats);
752 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
753 Opts.ShowVersion = Args.hasArg(OPT_version);
754 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
755 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
756 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
757 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
758 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
759 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
760 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
761 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
762 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
763 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
765 Opts.CodeCompleteOpts.IncludeMacros
766 = Args.hasArg(OPT_code_completion_macros);
767 Opts.CodeCompleteOpts.IncludeCodePatterns
768 = Args.hasArg(OPT_code_completion_patterns);
769 Opts.CodeCompleteOpts.IncludeGlobals
770 = !Args.hasArg(OPT_no_code_completion_globals);
771 Opts.CodeCompleteOpts.IncludeBriefComments
772 = Args.hasArg(OPT_code_completion_brief_comments);
774 Opts.OverrideRecordLayoutsFile
775 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
776 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
778 OPT_arcmt_migrate)) {
779 switch (A->getOption().getID()) {
781 llvm_unreachable("missed a case");
782 case OPT_arcmt_check:
783 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
785 case OPT_arcmt_modify:
786 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
788 case OPT_arcmt_migrate:
789 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
793 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
794 Opts.ARCMTMigrateReportOut
795 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
796 Opts.ARCMTMigrateEmitARCErrors
797 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
799 if (Args.hasArg(OPT_objcmt_migrate_literals))
800 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
801 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
802 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
803 if (Args.hasArg(OPT_objcmt_migrate_property))
804 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
805 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
806 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
807 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
808 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
809 if (Args.hasArg(OPT_objcmt_migrate_annotation))
810 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
811 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
812 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
813 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
814 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
815 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
816 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
817 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
818 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
819 if (Args.hasArg(OPT_objcmt_atomic_property))
820 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
821 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
822 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
823 if (Args.hasArg(OPT_objcmt_migrate_all))
824 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
826 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_white_list_dir_path);
828 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
829 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
830 Diags.Report(diag::err_drv_argument_not_allowed_with)
831 << "ARC migration" << "ObjC migration";
834 InputKind DashX = IK_None;
835 if (const Arg *A = Args.getLastArg(OPT_x)) {
836 DashX = llvm::StringSwitch<InputKind>(A->getValue())
838 .Case("cl", IK_OpenCL)
839 .Case("cuda", IK_CUDA)
841 .Case("objective-c", IK_ObjC)
842 .Case("objective-c++", IK_ObjCXX)
843 .Case("cpp-output", IK_PreprocessedC)
844 .Case("assembler-with-cpp", IK_Asm)
845 .Case("c++-cpp-output", IK_PreprocessedCXX)
846 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
847 .Case("objc-cpp-output", IK_PreprocessedObjC)
848 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
849 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
850 .Case("c-header", IK_C)
851 .Case("cl-header", IK_OpenCL)
852 .Case("objective-c-header", IK_ObjC)
853 .Case("c++-header", IK_CXX)
854 .Case("objective-c++-header", IK_ObjCXX)
855 .Cases("ast", "pcm", IK_AST)
856 .Case("ir", IK_LLVM_IR)
858 if (DashX == IK_None)
859 Diags.Report(diag::err_drv_invalid_value)
860 << A->getAsString(Args) << A->getValue();
863 // '-' is the default input if none is given.
864 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
867 Inputs.push_back("-");
868 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
869 InputKind IK = DashX;
871 IK = FrontendOptions::getInputKindForExtension(
872 StringRef(Inputs[i]).rsplit('.').second);
873 // FIXME: Remove this hack.
877 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK));
883 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
885 SmallString<128> P(llvm::sys::fs::getMainExecutable(Argv0, MainAddr));
888 llvm::sys::path::remove_filename(P); // Remove /clang from foo/bin/clang
889 llvm::sys::path::remove_filename(P); // Remove /bin from foo/bin
891 // Get foo/lib/clang/<version>/include
892 llvm::sys::path::append(P, "lib", "clang", CLANG_VERSION_STRING);
898 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
899 using namespace options;
900 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
901 Opts.Verbose = Args.hasArg(OPT_v);
902 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
903 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
904 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
905 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
906 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
907 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
908 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
909 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
910 // -fmodules implies -fmodule-maps
911 Opts.ModuleMaps = Args.hasArg(OPT_fmodule_maps) || Args.hasArg(OPT_fmodules);
912 Opts.ModuleCachePruneInterval =
913 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
914 Opts.ModuleCachePruneAfter =
915 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
916 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro),
917 ie = Args.filtered_end();
919 StringRef MacroDef = (*it)->getValue();
920 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first);
922 std::vector<std::string> ModuleMapFiles =
923 Args.getAllArgValues(OPT_fmodule_map_file);
924 Opts.ModuleMapFiles.insert(ModuleMapFiles.begin(), ModuleMapFiles.end());
926 // Add -I..., -F..., and -index-header-map options in order.
927 bool IsIndexHeaderMap = false;
928 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F,
929 OPT_index_header_map),
930 ie = Args.filtered_end(); it != ie; ++it) {
931 if ((*it)->getOption().matches(OPT_index_header_map)) {
932 // -index-header-map applies to the next -I or -F.
933 IsIndexHeaderMap = true;
937 frontend::IncludeDirGroup Group
938 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled;
940 Opts.AddPath((*it)->getValue(), Group,
941 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true);
942 IsIndexHeaderMap = false;
945 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
946 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
947 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
948 OPT_iwithprefixbefore),
949 ie = Args.filtered_end(); it != ie; ++it) {
951 if (A->getOption().matches(OPT_iprefix))
952 Prefix = A->getValue();
953 else if (A->getOption().matches(OPT_iwithprefix))
954 Opts.AddPath(Prefix.str() + A->getValue(),
955 frontend::After, false, true);
957 Opts.AddPath(Prefix.str() + A->getValue(),
958 frontend::Angled, false, true);
961 for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
962 ie = Args.filtered_end(); it != ie; ++it)
963 Opts.AddPath((*it)->getValue(), frontend::After, false, true);
964 for (arg_iterator it = Args.filtered_begin(OPT_iquote),
965 ie = Args.filtered_end(); it != ie; ++it)
966 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true);
967 for (arg_iterator it = Args.filtered_begin(OPT_isystem,
968 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it)
969 Opts.AddPath((*it)->getValue(), frontend::System, false,
970 !(*it)->getOption().matches(OPT_iwithsysroot));
971 for (arg_iterator it = Args.filtered_begin(OPT_iframework),
972 ie = Args.filtered_end(); it != ie; ++it)
973 Opts.AddPath((*it)->getValue(), frontend::System, true, true);
975 // Add the paths for the various language specific isystem flags.
976 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem),
977 ie = Args.filtered_end(); it != ie; ++it)
978 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true);
979 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem),
980 ie = Args.filtered_end(); it != ie; ++it)
981 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true);
982 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem),
983 ie = Args.filtered_end(); it != ie; ++it)
984 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true);
985 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem),
986 ie = Args.filtered_end(); it != ie; ++it)
987 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true);
989 // Add the internal paths from a driver that detects standard include paths.
990 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem,
991 OPT_internal_externc_isystem),
992 E = Args.filtered_end();
994 frontend::IncludeDirGroup Group = frontend::System;
995 if ((*I)->getOption().matches(OPT_internal_externc_isystem))
996 Group = frontend::ExternCSystem;
997 Opts.AddPath((*I)->getValue(), Group, false, true);
1000 // Add the path prefixes which are implicitly treated as being system headers.
1001 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix,
1002 OPT_ino_system_prefix),
1003 E = Args.filtered_end();
1005 Opts.AddSystemHeaderPrefix((*I)->getValue(),
1006 (*I)->getOption().matches(OPT_isystem_prefix));
1009 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1010 LangStandard::Kind LangStd) {
1011 // Set some properties which depend solely on the input kind; it would be nice
1012 // to move these to the language standard, and have the driver resolve the
1013 // input kind + language standard.
1015 Opts.AsmPreprocessor = 1;
1016 } else if (IK == IK_ObjC ||
1018 IK == IK_PreprocessedObjC ||
1019 IK == IK_PreprocessedObjCXX) {
1020 Opts.ObjC1 = Opts.ObjC2 = 1;
1023 if (LangStd == LangStandard::lang_unspecified) {
1024 // Based on the base language, pick one.
1029 llvm_unreachable("Invalid input kind!");
1031 LangStd = LangStandard::lang_opencl;
1034 LangStd = LangStandard::lang_cuda;
1038 case IK_PreprocessedC:
1040 case IK_PreprocessedObjC:
1041 LangStd = LangStandard::lang_gnu99;
1044 case IK_PreprocessedCXX:
1046 case IK_PreprocessedObjCXX:
1047 LangStd = LangStandard::lang_gnucxx98;
1052 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1053 Opts.LineComment = Std.hasLineComments();
1054 Opts.C99 = Std.isC99();
1055 Opts.C11 = Std.isC11();
1056 Opts.CPlusPlus = Std.isCPlusPlus();
1057 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1058 Opts.CPlusPlus1y = Std.isCPlusPlus1y();
1059 Opts.Digraphs = Std.hasDigraphs();
1060 Opts.GNUMode = Std.isGNUMode();
1061 Opts.GNUInline = !Std.isC99();
1062 Opts.HexFloats = Std.hasHexFloats();
1063 Opts.ImplicitInt = Std.hasImplicitInt();
1065 // Set OpenCL Version.
1066 if (LangStd == LangStandard::lang_opencl) {
1068 Opts.OpenCLVersion = 100;
1070 else if (LangStd == LangStandard::lang_opencl11) {
1072 Opts.OpenCLVersion = 110;
1074 else if (LangStd == LangStandard::lang_opencl12) {
1076 Opts.OpenCLVersion = 120;
1079 // OpenCL has some additional defaults.
1082 Opts.CXXOperatorNames = 1;
1083 Opts.LaxVectorConversions = 0;
1084 Opts.DefaultFPContract = 1;
1085 Opts.NativeHalfType = 1;
1088 if (LangStd == LangStandard::lang_cuda)
1091 // OpenCL and C++ both have bool, true, false keywords.
1092 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1094 // C++ has wchar_t keyword.
1095 Opts.WChar = Opts.CPlusPlus;
1097 Opts.GNUKeywords = Opts.GNUMode;
1098 Opts.CXXOperatorNames = Opts.CPlusPlus;
1100 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1101 // is specified, or -std is set to a conforming mode.
1102 Opts.Trigraphs = !Opts.GNUMode;
1104 Opts.DollarIdents = !Opts.AsmPreprocessor;
1106 // C++1y onwards has sized global deallocation functions.
1107 Opts.SizedDeallocation = Opts.CPlusPlus1y;
1110 /// Attempt to parse a visibility value out of the given argument.
1111 static Visibility parseVisibility(Arg *arg, ArgList &args,
1112 DiagnosticsEngine &diags) {
1113 StringRef value = arg->getValue();
1114 if (value == "default") {
1115 return DefaultVisibility;
1116 } else if (value == "hidden") {
1117 return HiddenVisibility;
1118 } else if (value == "protected") {
1119 // FIXME: diagnose if target does not support protected visibility
1120 return ProtectedVisibility;
1123 diags.Report(diag::err_drv_invalid_value)
1124 << arg->getAsString(args) << value;
1125 return DefaultVisibility;
1128 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1129 DiagnosticsEngine &Diags) {
1130 // FIXME: Cleanup per-file based stuff.
1131 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1132 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1133 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1134 #define LANGSTANDARD(id, name, desc, features) \
1135 .Case(name, LangStandard::lang_##id)
1136 #include "clang/Frontend/LangStandards.def"
1137 .Default(LangStandard::lang_unspecified);
1138 if (LangStd == LangStandard::lang_unspecified)
1139 Diags.Report(diag::err_drv_invalid_value)
1140 << A->getAsString(Args) << A->getValue();
1142 // Valid standard, check to make sure language and standard are compatable.
1143 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1147 case IK_PreprocessedC:
1148 case IK_PreprocessedObjC:
1149 if (!(Std.isC89() || Std.isC99()))
1150 Diags.Report(diag::err_drv_argument_not_allowed_with)
1151 << A->getAsString(Args) << "C/ObjC";
1155 case IK_PreprocessedCXX:
1156 case IK_PreprocessedObjCXX:
1157 if (!Std.isCPlusPlus())
1158 Diags.Report(diag::err_drv_argument_not_allowed_with)
1159 << A->getAsString(Args) << "C++/ObjC++";
1163 Diags.Report(diag::err_drv_argument_not_allowed_with)
1164 << A->getAsString(Args) << "OpenCL";
1167 if (!Std.isCPlusPlus())
1168 Diags.Report(diag::err_drv_argument_not_allowed_with)
1169 << A->getAsString(Args) << "CUDA";
1177 // -cl-std only applies for OpenCL language standards.
1178 // Override the -std option in this case.
1179 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1180 LangStandard::Kind OpenCLLangStd
1181 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
1182 .Case("CL", LangStandard::lang_opencl)
1183 .Case("CL1.1", LangStandard::lang_opencl11)
1184 .Case("CL1.2", LangStandard::lang_opencl12)
1185 .Default(LangStandard::lang_unspecified);
1187 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1188 Diags.Report(diag::err_drv_invalid_value)
1189 << A->getAsString(Args) << A->getValue();
1192 LangStd = OpenCLLangStd;
1195 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1197 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1198 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1199 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1200 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1201 // name, as it doesn't seem a useful distinction.
1202 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1205 if (Args.hasArg(OPT_fno_operator_names))
1206 Opts.CXXOperatorNames = 0;
1209 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1210 StringRef value = arg->getValue();
1211 if (Opts.ObjCRuntime.tryParse(value))
1212 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1215 if (Args.hasArg(OPT_fobjc_gc_only))
1216 Opts.setGC(LangOptions::GCOnly);
1217 else if (Args.hasArg(OPT_fobjc_gc))
1218 Opts.setGC(LangOptions::HybridGC);
1219 else if (Args.hasArg(OPT_fobjc_arc)) {
1220 Opts.ObjCAutoRefCount = 1;
1221 if (!Opts.ObjCRuntime.allowsARC())
1222 Diags.Report(diag::err_arc_unsupported_on_runtime);
1224 // Only set ObjCARCWeak if ARC is enabled.
1225 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1226 Opts.ObjCARCWeak = 1;
1228 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak();
1231 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1232 Opts.ObjCInferRelatedResultType = 0;
1234 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
1235 Opts.ObjCSubscriptingLegacyRuntime =
1236 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
1239 if (Args.hasArg(OPT_fgnu89_inline))
1242 if (Args.hasArg(OPT_fapple_kext)) {
1243 if (!Opts.CPlusPlus)
1244 Diags.Report(diag::warn_c_kext);
1249 if (Args.hasArg(OPT_print_ivar_layout))
1250 Opts.ObjCGCBitmapPrint = 1;
1251 if (Args.hasArg(OPT_fno_constant_cfstrings))
1252 Opts.NoConstantCFStrings = 1;
1254 if (Args.hasArg(OPT_faltivec))
1257 if (Args.hasArg(OPT_pthread))
1258 Opts.POSIXThreads = 1;
1260 // The value-visibility mode defaults to "default".
1261 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
1262 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
1264 Opts.setValueVisibilityMode(DefaultVisibility);
1267 // The type-visibility mode defaults to the value-visibility mode.
1268 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
1269 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
1271 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
1274 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
1275 Opts.InlineVisibilityHidden = 1;
1277 if (Args.hasArg(OPT_ftrapv)) {
1278 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
1279 // Set the handler, if one is specified.
1280 Opts.OverflowHandler =
1281 Args.getLastArgValue(OPT_ftrapv_handler);
1283 else if (Args.hasArg(OPT_fwrapv))
1284 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
1286 if (Args.hasArg(OPT_trigraphs))
1289 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1290 OPT_fno_dollars_in_identifiers,
1292 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1294 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility);
1295 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility);
1296 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
1297 Opts.MSCVersion = getLastArgIntValue(Args, OPT_fmsc_version, 0, Diags);
1298 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
1299 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1300 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
1302 if (Args.hasArg(OPT_fno_lax_vector_conversions))
1303 Opts.LaxVectorConversions = 0;
1304 if (Args.hasArg(OPT_fno_threadsafe_statics))
1305 Opts.ThreadsafeStatics = 0;
1306 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1307 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
1308 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
1309 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1310 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
1312 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1313 Opts.Blocks = Args.hasArg(OPT_fblocks);
1314 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
1315 Opts.Modules = Args.hasArg(OPT_fmodules);
1316 Opts.ModulesDeclUse = Args.hasArg(OPT_fmodules_decluse);
1317 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
1318 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
1319 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
1320 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
1321 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1322 Opts.FormatExtensions = Args.hasArg(OPT_fformat_extensions);
1323 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1324 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
1325 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1326 Opts.SizedDeallocation |= Args.hasArg(OPT_fsized_deallocation);
1327 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1328 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1329 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1330 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
1331 Opts.InstantiationDepth =
1332 getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags);
1334 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
1335 Opts.ConstexprCallDepth =
1336 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
1337 Opts.ConstexprStepLimit =
1338 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
1339 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
1340 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
1341 Opts.NumLargeByValueCopy =
1342 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
1343 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
1344 Opts.ObjCConstantStringClass =
1345 Args.getLastArgValue(OPT_fconstant_string_class);
1346 Opts.ObjCDefaultSynthProperties =
1347 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
1348 Opts.EncodeExtendedBlockSig =
1349 Args.hasArg(OPT_fencode_extended_block_signature);
1350 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1351 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
1352 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
1353 Opts.PIELevel = getLastArgIntValue(Args, OPT_pie_level, 0, Diags);
1354 Opts.Static = Args.hasArg(OPT_static_define);
1355 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
1356 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
1357 || Args.hasArg(OPT_fdump_record_layouts);
1358 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1359 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
1360 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1361 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
1362 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
1363 Opts.MRTD = Args.hasArg(OPT_mrtd);
1364 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
1365 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
1366 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
1367 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
1368 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
1369 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
1370 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
1371 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
1373 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
1374 switch (llvm::StringSwitch<unsigned>(A->getValue())
1375 .Case("target", LangOptions::ASMM_Target)
1376 .Case("no", LangOptions::ASMM_Off)
1377 .Case("yes", LangOptions::ASMM_On)
1380 Diags.Report(diag::err_drv_invalid_value)
1381 << "-faddress-space-map-mangling=" << A->getValue();
1383 case LangOptions::ASMM_Target:
1384 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
1386 case LangOptions::ASMM_On:
1387 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
1389 case LangOptions::ASMM_Off:
1390 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
1395 // Check if -fopenmp is specified.
1396 Opts.OpenMP = Args.hasArg(OPT_fopenmp);
1398 // Record whether the __DEPRECATED define was requested.
1399 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
1400 OPT_fno_deprecated_macro,
1403 // FIXME: Eliminate this dependency.
1404 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
1405 OptSize = getOptimizationLevelSize(Args);
1406 Opts.Optimize = Opt != 0;
1407 Opts.OptimizeSize = OptSize != 0;
1409 // This is the __NO_INLINE__ define, which just depends on things like the
1410 // optimization level and -fno-inline, not actually whether the backend has
1411 // inlining enabled.
1412 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
1414 Opts.FastMath = Args.hasArg(OPT_ffast_math);
1415 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only);
1417 Opts.RetainCommentsFromSystemHeaders =
1418 Args.hasArg(OPT_fretain_comments_from_system_headers);
1420 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
1423 Diags.Report(diag::err_drv_invalid_value)
1424 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1426 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
1427 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
1428 case 2: Opts.setStackProtector(LangOptions::SSPReq); break;
1431 // Parse -fsanitize= arguments.
1432 std::vector<std::string> Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ);
1433 for (unsigned I = 0, N = Sanitizers.size(); I != N; ++I) {
1434 // Since the Opts.Sanitize* values are bitfields, it's a little tricky to
1435 // efficiently map string values to them. Perform the mapping indirectly:
1436 // convert strings to enumerated values, then switch over the enum to set
1437 // the right bitfield value.
1439 #define SANITIZER(NAME, ID) \
1441 #include "clang/Basic/Sanitizers.def"
1444 switch (llvm::StringSwitch<unsigned>(Sanitizers[I])
1445 #define SANITIZER(NAME, ID) \
1447 #include "clang/Basic/Sanitizers.def"
1448 .Default(Unknown)) {
1449 #define SANITIZER(NAME, ID) \
1451 Opts.Sanitize.ID = true; \
1453 #include "clang/Basic/Sanitizers.def"
1456 Diags.Report(diag::err_drv_invalid_value)
1457 << "-fsanitize=" << Sanitizers[I];
1463 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1464 FileManager &FileMgr,
1465 DiagnosticsEngine &Diags) {
1466 using namespace options;
1467 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1468 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1469 if (const Arg *A = Args.getLastArg(OPT_token_cache))
1470 Opts.TokenCache = A->getValue();
1472 Opts.TokenCache = Opts.ImplicitPTHInclude;
1473 Opts.UsePredefines = !Args.hasArg(OPT_undef);
1474 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1475 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
1477 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
1478 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl),
1479 ie = Args.filtered_end(); it != ie; ++it) {
1481 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
1484 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
1485 StringRef Value(A->getValue());
1486 size_t Comma = Value.find(',');
1488 unsigned EndOfLine = 0;
1490 if (Comma == StringRef::npos ||
1491 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
1492 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
1493 Diags.Report(diag::err_drv_preamble_format);
1495 Opts.PrecompiledPreambleBytes.first = Bytes;
1496 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
1500 // Add macros from the command line.
1501 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1502 ie = Args.filtered_end(); it != ie; ++it) {
1503 if ((*it)->getOption().matches(OPT_D))
1504 Opts.addMacroDef((*it)->getValue());
1506 Opts.addMacroUndef((*it)->getValue());
1509 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1511 // Add the ordered list of -includes.
1512 for (arg_iterator it = Args.filtered_begin(OPT_include),
1513 ie = Args.filtered_end(); it != ie; ++it) {
1515 Opts.Includes.push_back(A->getValue());
1518 for (arg_iterator it = Args.filtered_begin(OPT_chain_include),
1519 ie = Args.filtered_end(); it != ie; ++it) {
1521 Opts.ChainedIncludes.push_back(A->getValue());
1524 // Include 'altivec.h' if -faltivec option present
1525 if (Args.hasArg(OPT_faltivec))
1526 Opts.Includes.push_back("altivec.h");
1528 for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1529 ie = Args.filtered_end(); it != ie; ++it) {
1531 std::pair<StringRef,StringRef> Split =
1532 StringRef(A->getValue()).split(';');
1534 if (Split.second.empty()) {
1535 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
1539 Opts.addRemappedFile(Split.first, Split.second);
1542 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
1543 StringRef Name = A->getValue();
1544 unsigned Library = llvm::StringSwitch<unsigned>(Name)
1545 .Case("libc++", ARCXX_libcxx)
1546 .Case("libstdc++", ARCXX_libstdcxx)
1547 .Case("none", ARCXX_nolib)
1550 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1552 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
1556 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1558 frontend::ActionKind Action) {
1559 using namespace options;
1562 case frontend::ASTDeclList:
1563 case frontend::ASTDump:
1564 case frontend::ASTPrint:
1565 case frontend::ASTView:
1566 case frontend::EmitAssembly:
1567 case frontend::EmitBC:
1568 case frontend::EmitHTML:
1569 case frontend::EmitLLVM:
1570 case frontend::EmitLLVMOnly:
1571 case frontend::EmitCodeGenOnly:
1572 case frontend::EmitObj:
1573 case frontend::FixIt:
1574 case frontend::GenerateModule:
1575 case frontend::GeneratePCH:
1576 case frontend::GeneratePTH:
1577 case frontend::ParseSyntaxOnly:
1578 case frontend::ModuleFileInfo:
1579 case frontend::PluginAction:
1580 case frontend::PrintDeclContext:
1581 case frontend::RewriteObjC:
1582 case frontend::RewriteTest:
1583 case frontend::RunAnalysis:
1584 case frontend::MigrateSource:
1588 case frontend::DumpRawTokens:
1589 case frontend::DumpTokens:
1590 case frontend::InitOnly:
1591 case frontend::PrintPreamble:
1592 case frontend::PrintPreprocessedInput:
1593 case frontend::RewriteMacros:
1594 case frontend::RunPreprocessorOnly:
1595 Opts.ShowCPP = !Args.hasArg(OPT_dM);
1599 Opts.ShowComments = Args.hasArg(OPT_C);
1600 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1601 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1602 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1603 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
1606 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1607 using namespace options;
1608 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1609 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi);
1610 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1611 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
1612 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
1613 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
1614 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
1616 // Use the default target triple if unspecified.
1617 if (Opts.Triple.empty())
1618 Opts.Triple = llvm::sys::getDefaultTargetTriple();
1623 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1624 const char *const *ArgBegin,
1625 const char *const *ArgEnd,
1626 DiagnosticsEngine &Diags) {
1627 bool Success = true;
1629 // Parse the arguments.
1630 OwningPtr<OptTable> Opts(createDriverOptTable());
1631 const unsigned IncludedFlagsBitmask = options::CC1Option;
1632 unsigned MissingArgIndex, MissingArgCount;
1633 OwningPtr<InputArgList> Args(
1634 Opts->ParseArgs(ArgBegin, ArgEnd, MissingArgIndex, MissingArgCount,
1635 IncludedFlagsBitmask));
1637 // Check for missing argument error.
1638 if (MissingArgCount) {
1639 Diags.Report(diag::err_drv_missing_argument)
1640 << Args->getArgString(MissingArgIndex) << MissingArgCount;
1644 // Issue errors on unknown arguments.
1645 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
1646 ie = Args->filtered_end(); it != ie; ++it) {
1647 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
1651 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success;
1652 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success;
1653 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
1654 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags)
1656 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args);
1657 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args);
1658 // FIXME: We shouldn't have to pass the DashX option around here
1659 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
1660 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags)
1662 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
1663 if (DashX != IK_AST && DashX != IK_LLVM_IR) {
1664 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags);
1665 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
1666 Res.getLangOpts()->ObjCExceptions = 1;
1668 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
1669 // PCH file and find the original header name. Remove the need to do that in
1670 // ParsePreprocessorArgs and remove the FileManager
1671 // parameters from the function and the "FileManager.h" #include.
1672 FileManager FileMgr(Res.getFileSystemOpts());
1673 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags);
1674 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args,
1675 Res.getFrontendOpts().ProgramAction);
1676 ParseTargetArgs(Res.getTargetOpts(), *Args);
1683 class ModuleSignature {
1684 SmallVector<uint64_t, 16> Data;
1689 ModuleSignature() : CurBit(0), CurValue(0) { }
1691 void add(uint64_t Value, unsigned Bits);
1692 void add(StringRef Value);
1695 llvm::APInt getAsInteger() const;
1699 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
1700 CurValue |= Value << CurBit;
1701 if (CurBit + NumBits < 64) {
1706 // Add the current word.
1707 Data.push_back(CurValue);
1710 CurValue = Value >> (64-CurBit);
1713 CurBit = (CurBit+NumBits) & 63;
1716 void ModuleSignature::flush() {
1720 Data.push_back(CurValue);
1725 void ModuleSignature::add(StringRef Value) {
1726 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I)
1730 llvm::APInt ModuleSignature::getAsInteger() const {
1731 return llvm::APInt(Data.size() * 64, Data);
1734 std::string CompilerInvocation::getModuleHash() const {
1735 // Note: For QoI reasons, the things we use as a hash here should all be
1736 // dumped via the -module-info flag.
1737 using llvm::hash_code;
1738 using llvm::hash_value;
1739 using llvm::hash_combine;
1741 // Start the signature with the compiler version.
1742 // FIXME: We'd rather use something more cryptographically sound than
1743 // CityHash, but this will do for now.
1744 hash_code code = hash_value(getClangFullRepositoryVersion());
1746 // Extend the signature with the language options
1747 #define LANGOPT(Name, Bits, Default, Description) \
1748 code = hash_combine(code, LangOpts->Name);
1749 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
1750 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
1751 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
1752 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
1753 #include "clang/Basic/LangOptions.def"
1755 // Extend the signature with the target options.
1756 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
1757 TargetOpts->ABI, TargetOpts->CXXABI,
1758 TargetOpts->LinkerVersion);
1759 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i)
1760 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]);
1762 // Extend the signature with preprocessor options.
1763 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
1764 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
1765 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
1767 std::vector<StringRef> MacroDefs;
1768 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
1769 I = getPreprocessorOpts().Macros.begin(),
1770 IEnd = getPreprocessorOpts().Macros.end();
1772 // If we're supposed to ignore this macro for the purposes of modules,
1773 // don't put it into the hash.
1774 if (!hsOpts.ModulesIgnoreMacros.empty()) {
1775 // Check whether we're ignoring this macro.
1776 StringRef MacroDef = I->first;
1777 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first))
1781 code = hash_combine(code, I->first, I->second);
1784 // Extend the signature with the sysroot.
1785 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes,
1786 hsOpts.UseStandardSystemIncludes,
1787 hsOpts.UseStandardCXXIncludes,
1790 // Darwin-specific hack: if we have a sysroot, use the contents and
1791 // modification time of
1792 // $sysroot/System/Library/CoreServices/SystemVersion.plist
1793 // as part of the module hash.
1794 if (!hsOpts.Sysroot.empty()) {
1795 llvm::OwningPtr<llvm::MemoryBuffer> buffer;
1796 SmallString<128> systemVersionFile;
1797 systemVersionFile += hsOpts.Sysroot;
1798 llvm::sys::path::append(systemVersionFile, "System");
1799 llvm::sys::path::append(systemVersionFile, "Library");
1800 llvm::sys::path::append(systemVersionFile, "CoreServices");
1801 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist");
1802 if (!llvm::MemoryBuffer::getFile(systemVersionFile.str(), buffer)) {
1803 code = hash_combine(code, buffer.get()->getBuffer());
1805 struct stat statBuf;
1806 if (stat(systemVersionFile.c_str(), &statBuf) == 0)
1807 code = hash_combine(code, statBuf.st_mtime);
1811 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
1816 // Declared in clang/Frontend/Utils.h.
1817 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
1818 DiagnosticsEngine *Diags) {
1820 if (Arg *A = Args.getLastArg(Id)) {
1821 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
1823 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)