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/Diagnostic.h"
12 #include "clang/Basic/Version.h"
13 #include "clang/Basic/FileManager.h"
14 #include "clang/Driver/Arg.h"
15 #include "clang/Driver/ArgList.h"
16 #include "clang/Driver/Options.h"
17 #include "clang/Driver/DriverDiagnostic.h"
18 #include "clang/Driver/OptTable.h"
19 #include "clang/Driver/Option.h"
20 #include "clang/Frontend/CompilerInvocation.h"
21 #include "clang/Frontend/LangStandard.h"
22 #include "clang/Serialization/ASTReader.h"
23 #include "llvm/ADT/OwningPtr.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/Support/ErrorHandling.h"
29 #include "llvm/Support/Host.h"
30 #include "llvm/Support/Path.h"
31 using namespace clang;
32
33 //===----------------------------------------------------------------------===//
34 // Initialization.
35 //===----------------------------------------------------------------------===//
36
CompilerInvocationBase()37 CompilerInvocationBase::CompilerInvocationBase()
38 : LangOpts(new LangOptions()) {}
39
CompilerInvocationBase(const CompilerInvocationBase & X)40 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
41 : RefCountedBase<CompilerInvocation>(),
42 LangOpts(new LangOptions(*X.getLangOpts())) {}
43
44 //===----------------------------------------------------------------------===//
45 // Utility functions.
46 //===----------------------------------------------------------------------===//
47
getAnalysisStoreName(AnalysisStores Kind)48 static const char *getAnalysisStoreName(AnalysisStores Kind) {
49 switch (Kind) {
50 default:
51 llvm_unreachable("Unknown analysis store!");
52 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
53 case NAME##Model: return CMDFLAG;
54 #include "clang/StaticAnalyzer/Core/Analyses.def"
55 }
56 }
57
getAnalysisConstraintName(AnalysisConstraints Kind)58 static const char *getAnalysisConstraintName(AnalysisConstraints Kind) {
59 switch (Kind) {
60 default:
61 llvm_unreachable("Unknown analysis constraints!");
62 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
63 case NAME##Model: return CMDFLAG;
64 #include "clang/StaticAnalyzer/Core/Analyses.def"
65 }
66 }
67
getAnalysisDiagClientName(AnalysisDiagClients Kind)68 static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) {
69 switch (Kind) {
70 default:
71 llvm_unreachable("Unknown analysis client!");
72 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \
73 case PD_##NAME: return CMDFLAG;
74 #include "clang/StaticAnalyzer/Core/Analyses.def"
75 }
76 }
77
getAnalysisPurgeModeName(AnalysisPurgeMode Kind)78 static const char *getAnalysisPurgeModeName(AnalysisPurgeMode Kind) {
79 switch (Kind) {
80 default:
81 llvm_unreachable("Unknown analysis purge mode!");
82 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
83 case NAME: return CMDFLAG;
84 #include "clang/StaticAnalyzer/Core/Analyses.def"
85 }
86 }
87
getAnalysisIPAModeName(AnalysisIPAMode Kind)88 static const char *getAnalysisIPAModeName(AnalysisIPAMode Kind) {
89 switch (Kind) {
90 default:
91 llvm_unreachable("Unknown analysis ipa mode!");
92 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \
93 case NAME: return CMDFLAG;
94 #include "clang/StaticAnalyzer/Core/Analyses.def"
95 }
96 }
97
98 static const char *
getAnalysisInliningModeName(AnalysisInliningMode Kind)99 getAnalysisInliningModeName(AnalysisInliningMode Kind) {
100 switch (Kind) {
101 default:
102 llvm_unreachable("Unknown analysis inlining mode!");
103 #define ANALYSIS_INLINE_SELECTION(NAME, CMDFLAG, DESC) \
104 case NAME: return CMDFLAG;
105 #include "clang/StaticAnalyzer/Core/Analyses.def"
106 }
107 }
108
109 //===----------------------------------------------------------------------===//
110 // Serialization (to args)
111 //===----------------------------------------------------------------------===//
112
113 namespace {
114 /// ToArgsList - Helper class to create a list of std::strings.
115 class ToArgsList {
116 std::vector<std::string> &Res;
117 public:
ToArgsList(std::vector<std::string> & Res)118 explicit ToArgsList(std::vector<std::string> &Res) : Res(Res) {}
119
push_back(StringRef Str)120 void push_back(StringRef Str) {
121 // Avoid creating a temporary string.
122 Res.push_back(std::string());
123 Res.back().assign(Str.data(), Str.size());
124 }
125
push_back(StringRef Str1,StringRef Str2)126 void push_back(StringRef Str1, StringRef Str2) {
127 push_back(Str1);
128 push_back(Str2);
129 }
130 };
131 }
132
AnalyzerOptsToArgs(const AnalyzerOptions & Opts,ToArgsList & Res)133 static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts, ToArgsList &Res) {
134 if (Opts.ShowCheckerHelp)
135 Res.push_back("-analyzer-checker-help");
136 if (Opts.AnalysisStoreOpt != RegionStoreModel)
137 Res.push_back("-analyzer-store",
138 getAnalysisStoreName(Opts.AnalysisStoreOpt));
139 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel)
140 Res.push_back("-analyzer-constraints",
141 getAnalysisConstraintName(Opts.AnalysisConstraintsOpt));
142 if (Opts.AnalysisDiagOpt != PD_HTML)
143 Res.push_back("-analyzer-output",
144 getAnalysisDiagClientName(Opts.AnalysisDiagOpt));
145 if (Opts.AnalysisPurgeOpt != PurgeStmt)
146 Res.push_back("-analyzer-purge",
147 getAnalysisPurgeModeName(Opts.AnalysisPurgeOpt));
148 if (!Opts.AnalyzeSpecificFunction.empty())
149 Res.push_back("-analyze-function", Opts.AnalyzeSpecificFunction);
150 if (Opts.IPAMode != DynamicDispatchBifurcate)
151 Res.push_back("-analyzer-ipa", getAnalysisIPAModeName(Opts.IPAMode));
152 if (Opts.InliningMode != NoRedundancy)
153 Res.push_back("-analyzer-inlining-mode",
154 getAnalysisInliningModeName(Opts.InliningMode));
155
156 if (Opts.AnalyzeAll)
157 Res.push_back("-analyzer-opt-analyze-headers");
158 if (Opts.AnalyzerDisplayProgress)
159 Res.push_back("-analyzer-display-progress");
160 if (Opts.AnalyzeNestedBlocks)
161 Res.push_back("-analyzer-opt-analyze-nested-blocks");
162 if (Opts.eagerlyAssumeBinOpBifurcation)
163 Res.push_back("-analyzer-eagerly-assume");
164 if (Opts.TrimGraph)
165 Res.push_back("-trim-egraph");
166 if (Opts.visualizeExplodedGraphWithGraphViz)
167 Res.push_back("-analyzer-viz-egraph-graphviz");
168 if (Opts.visualizeExplodedGraphWithUbiGraph)
169 Res.push_back("-analyzer-viz-egraph-ubigraph");
170 if (Opts.NoRetryExhausted)
171 Res.push_back("-analyzer-disable-retry-exhausted");
172
173 for (unsigned i = 0, e = Opts.CheckersControlList.size(); i != e; ++i) {
174 const std::pair<std::string, bool> &opt = Opts.CheckersControlList[i];
175 if (opt.second)
176 Res.push_back("-analyzer-disable-checker");
177 else
178 Res.push_back("-analyzer-checker");
179 Res.push_back(opt.first);
180 }
181 }
182
CodeGenOptsToArgs(const CodeGenOptions & Opts,ToArgsList & Res)183 static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) {
184 switch (Opts.DebugInfo) {
185 case CodeGenOptions::NoDebugInfo:
186 break;
187 case CodeGenOptions::DebugLineTablesOnly:
188 Res.push_back("-gline-tables-only");
189 break;
190 case CodeGenOptions::LimitedDebugInfo:
191 Res.push_back("-g");
192 Res.push_back("-flimit-debug-info");
193 break;
194 case CodeGenOptions::FullDebugInfo:
195 Res.push_back("-g");
196 Res.push_back("-fno-limit-debug-info");
197 break;
198 }
199 if (Opts.DisableLLVMOpts)
200 Res.push_back("-disable-llvm-optzns");
201 if (Opts.DisableRedZone)
202 Res.push_back("-disable-red-zone");
203 if (Opts.DisableTailCalls)
204 Res.push_back("-mdisable-tail-calls");
205 if (!Opts.DebugCompilationDir.empty())
206 Res.push_back("-fdebug-compilation-dir", Opts.DebugCompilationDir);
207 if (!Opts.DwarfDebugFlags.empty())
208 Res.push_back("-dwarf-debug-flags", Opts.DwarfDebugFlags);
209 if (Opts.EmitGcovArcs)
210 Res.push_back("-femit-coverage-data");
211 if (Opts.EmitGcovNotes)
212 Res.push_back("-femit-coverage-notes");
213 if (Opts.EmitOpenCLArgMetadata)
214 Res.push_back("-cl-kernel-arg-info");
215 if (!Opts.MergeAllConstants)
216 Res.push_back("-fno-merge-all-constants");
217 if (Opts.NoCommon)
218 Res.push_back("-fno-common");
219 if (Opts.ForbidGuardVariables)
220 Res.push_back("-fforbid-guard-variables");
221 if (Opts.UseRegisterSizedBitfieldAccess)
222 Res.push_back("-fuse-register-sized-bitfield-access");
223 if (Opts.NoImplicitFloat)
224 Res.push_back("-no-implicit-float");
225 if (Opts.OmitLeafFramePointer)
226 Res.push_back("-momit-leaf-frame-pointer");
227 if (Opts.OptimizeSize) {
228 assert(Opts.OptimizationLevel == 2 && "Invalid options!");
229 Opts.OptimizeSize == 1 ? Res.push_back("-Os") : Res.push_back("-Oz");
230 } else if (Opts.OptimizationLevel != 0)
231 Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel));
232 if (!Opts.MainFileName.empty())
233 Res.push_back("-main-file-name", Opts.MainFileName);
234 if (Opts.NoInfsFPMath)
235 Res.push_back("-menable-no-infinities");
236 if (Opts.NoNaNsFPMath)
237 Res.push_back("-menable-no-nans");
238 // SimplifyLibCalls is only derived.
239 // TimePasses is only derived.
240 // UnitAtATime is unused.
241 // Inlining is only derived.
242
243 // UnrollLoops is derived, but also accepts an option, no
244 // harm in pushing it back here.
245 if (Opts.UnrollLoops)
246 Res.push_back("-funroll-loops");
247 if (Opts.DataSections)
248 Res.push_back("-fdata-sections");
249 if (Opts.FunctionSections)
250 Res.push_back("-ffunction-sections");
251 if (Opts.AsmVerbose)
252 Res.push_back("-masm-verbose");
253 if (!Opts.CodeModel.empty())
254 Res.push_back("-mcode-model", Opts.CodeModel);
255 if (Opts.CUDAIsDevice)
256 Res.push_back("-fcuda-is-device");
257 if (!Opts.CXAAtExit)
258 Res.push_back("-fno-use-cxa-atexit");
259 if (Opts.CXXCtorDtorAliases)
260 Res.push_back("-mconstructor-aliases");
261 if (Opts.ObjCAutoRefCountExceptions)
262 Res.push_back("-fobjc-arc-eh");
263 if (!Opts.DebugPass.empty()) {
264 Res.push_back("-mdebug-pass", Opts.DebugPass);
265 }
266 if (Opts.DisableFPElim)
267 Res.push_back("-mdisable-fp-elim");
268 if (!Opts.FloatABI.empty())
269 Res.push_back("-mfloat-abi", Opts.FloatABI);
270 if (!Opts.LimitFloatPrecision.empty())
271 Res.push_back("-mlimit-float-precision", Opts.LimitFloatPrecision);
272 if (Opts.NoZeroInitializedInBSS)
273 Res.push_back("-mno-zero-initialized-bss");
274 switch (Opts.getObjCDispatchMethod()) {
275 case CodeGenOptions::Legacy:
276 break;
277 case CodeGenOptions::Mixed:
278 Res.push_back("-fobjc-dispatch-method=mixed");
279 break;
280 case CodeGenOptions::NonLegacy:
281 Res.push_back("-fobjc-dispatch-method=non-legacy");
282 break;
283 }
284 if (Opts.BoundsChecking > 0)
285 Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking));
286 if (Opts.NumRegisterParameters)
287 Res.push_back("-mregparm", llvm::utostr(Opts.NumRegisterParameters));
288 if (Opts.NoGlobalMerge)
289 Res.push_back("-mno-global-merge");
290 if (Opts.NoExecStack)
291 Res.push_back("-mnoexecstack");
292 if (Opts.RelaxAll)
293 Res.push_back("-mrelax-all");
294 if (Opts.SaveTempLabels)
295 Res.push_back("-msave-temp-labels");
296 if (Opts.NoDwarf2CFIAsm)
297 Res.push_back("-fno-dwarf2-cfi-asm");
298 if (Opts.NoDwarfDirectoryAsm)
299 Res.push_back("-fno-dwarf-directory-asm");
300 if (Opts.SoftFloat)
301 Res.push_back("-msoft-float");
302 if (Opts.StrictEnums)
303 Res.push_back("-fstrict-enums");
304 if (Opts.UnwindTables)
305 Res.push_back("-munwind-tables");
306 if (Opts.RelocationModel != "pic")
307 Res.push_back("-mrelocation-model", Opts.RelocationModel);
308 if (!Opts.VerifyModule)
309 Res.push_back("-disable-llvm-verifier");
310 for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i)
311 Res.push_back("-backend-option", Opts.BackendOptions[i]);
312
313 switch (Opts.DefaultTLSModel) {
314 case CodeGenOptions::GeneralDynamicTLSModel:
315 break;
316 case CodeGenOptions::LocalDynamicTLSModel:
317 Res.push_back("-ftls-model=local-dynamic");
318 break;
319 case CodeGenOptions::InitialExecTLSModel:
320 Res.push_back("-ftls-model=initial-exec");
321 break;
322 case CodeGenOptions::LocalExecTLSModel:
323 Res.push_back("-ftls-model=local-exec");
324 break;
325 }
326 }
327
DependencyOutputOptsToArgs(const DependencyOutputOptions & Opts,ToArgsList & Res)328 static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts,
329 ToArgsList &Res) {
330 if (Opts.IncludeSystemHeaders)
331 Res.push_back("-sys-header-deps");
332 if (Opts.ShowHeaderIncludes)
333 Res.push_back("-H");
334 if (!Opts.HeaderIncludeOutputFile.empty())
335 Res.push_back("-header-include-file", Opts.HeaderIncludeOutputFile);
336 if (Opts.UsePhonyTargets)
337 Res.push_back("-MP");
338 if (!Opts.OutputFile.empty())
339 Res.push_back("-dependency-file", Opts.OutputFile);
340 for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i)
341 Res.push_back("-MT", Opts.Targets[i]);
342 }
343
DiagnosticOptsToArgs(const DiagnosticOptions & Opts,ToArgsList & Res)344 static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts,
345 ToArgsList &Res) {
346 if (Opts.IgnoreWarnings)
347 Res.push_back("-w");
348 if (Opts.NoRewriteMacros)
349 Res.push_back("-Wno-rewrite-macros");
350 if (Opts.Pedantic)
351 Res.push_back("-pedantic");
352 if (Opts.PedanticErrors)
353 Res.push_back("-pedantic-errors");
354 if (!Opts.ShowColumn)
355 Res.push_back("-fno-show-column");
356 if (!Opts.ShowLocation)
357 Res.push_back("-fno-show-source-location");
358 if (!Opts.ShowCarets)
359 Res.push_back("-fno-caret-diagnostics");
360 if (!Opts.ShowFixits)
361 Res.push_back("-fno-diagnostics-fixit-info");
362 if (Opts.ShowSourceRanges)
363 Res.push_back("-fdiagnostics-print-source-range-info");
364 if (Opts.ShowParseableFixits)
365 Res.push_back("-fdiagnostics-parseable-fixits");
366 if (Opts.ShowColors)
367 Res.push_back("-fcolor-diagnostics");
368 if (Opts.VerifyDiagnostics)
369 Res.push_back("-verify");
370 if (Opts.ShowOptionNames)
371 Res.push_back("-fdiagnostics-show-option");
372 if (Opts.ShowCategories == 1)
373 Res.push_back("-fdiagnostics-show-category=id");
374 else if (Opts.ShowCategories == 2)
375 Res.push_back("-fdiagnostics-show-category=name");
376 switch (Opts.Format) {
377 case DiagnosticOptions::Clang:
378 Res.push_back("-fdiagnostics-format=clang"); break;
379 case DiagnosticOptions::Msvc:
380 Res.push_back("-fdiagnostics-format=msvc"); break;
381 case DiagnosticOptions::Vi:
382 Res.push_back("-fdiagnostics-format=vi"); break;
383 }
384 if (Opts.ErrorLimit)
385 Res.push_back("-ferror-limit", llvm::utostr(Opts.ErrorLimit));
386 if (!Opts.DiagnosticLogFile.empty())
387 Res.push_back("-diagnostic-log-file", Opts.DiagnosticLogFile);
388 if (Opts.MacroBacktraceLimit
389 != DiagnosticOptions::DefaultMacroBacktraceLimit)
390 Res.push_back("-fmacro-backtrace-limit",
391 llvm::utostr(Opts.MacroBacktraceLimit));
392 if (Opts.TemplateBacktraceLimit
393 != DiagnosticOptions::DefaultTemplateBacktraceLimit)
394 Res.push_back("-ftemplate-backtrace-limit",
395 llvm::utostr(Opts.TemplateBacktraceLimit));
396 if (Opts.ConstexprBacktraceLimit
397 != DiagnosticOptions::DefaultConstexprBacktraceLimit)
398 Res.push_back("-fconstexpr-backtrace-limit",
399 llvm::utostr(Opts.ConstexprBacktraceLimit));
400
401 if (Opts.TabStop != DiagnosticOptions::DefaultTabStop)
402 Res.push_back("-ftabstop", llvm::utostr(Opts.TabStop));
403 if (Opts.MessageLength)
404 Res.push_back("-fmessage-length", llvm::utostr(Opts.MessageLength));
405 if (!Opts.DumpBuildInformation.empty())
406 Res.push_back("-dump-build-information", Opts.DumpBuildInformation);
407 for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i)
408 Res.push_back("-W" + Opts.Warnings[i]);
409 }
410
getInputKindName(InputKind Kind)411 static const char *getInputKindName(InputKind Kind) {
412 switch (Kind) {
413 case IK_None: break;
414 case IK_AST: return "ast";
415 case IK_Asm: return "assembler-with-cpp";
416 case IK_C: return "c";
417 case IK_CXX: return "c++";
418 case IK_LLVM_IR: return "ir";
419 case IK_ObjC: return "objective-c";
420 case IK_ObjCXX: return "objective-c++";
421 case IK_OpenCL: return "cl";
422 case IK_CUDA: return "cuda";
423 case IK_PreprocessedC: return "cpp-output";
424 case IK_PreprocessedCXX: return "c++-cpp-output";
425 case IK_PreprocessedObjC: return "objective-c-cpp-output";
426 case IK_PreprocessedObjCXX:return "objective-c++-cpp-output";
427 }
428
429 llvm_unreachable("Unexpected language kind!");
430 }
431
getActionName(frontend::ActionKind Kind)432 static const char *getActionName(frontend::ActionKind Kind) {
433 switch (Kind) {
434 case frontend::PluginAction:
435 llvm_unreachable("Invalid kind!");
436
437 case frontend::ASTDeclList: return "-ast-list";
438 case frontend::ASTDump: return "-ast-dump";
439 case frontend::ASTDumpXML: return "-ast-dump-xml";
440 case frontend::ASTPrint: return "-ast-print";
441 case frontend::ASTView: return "-ast-view";
442 case frontend::DumpRawTokens: return "-dump-raw-tokens";
443 case frontend::DumpTokens: return "-dump-tokens";
444 case frontend::EmitAssembly: return "-S";
445 case frontend::EmitBC: return "-emit-llvm-bc";
446 case frontend::EmitHTML: return "-emit-html";
447 case frontend::EmitLLVM: return "-emit-llvm";
448 case frontend::EmitLLVMOnly: return "-emit-llvm-only";
449 case frontend::EmitCodeGenOnly: return "-emit-codegen-only";
450 case frontend::EmitObj: return "-emit-obj";
451 case frontend::FixIt: return "-fixit";
452 case frontend::GenerateModule: return "-emit-module";
453 case frontend::GeneratePCH: return "-emit-pch";
454 case frontend::GeneratePTH: return "-emit-pth";
455 case frontend::InitOnly: return "-init-only";
456 case frontend::ParseSyntaxOnly: return "-fsyntax-only";
457 case frontend::PrintDeclContext: return "-print-decl-contexts";
458 case frontend::PrintPreamble: return "-print-preamble";
459 case frontend::PrintPreprocessedInput: return "-E";
460 case frontend::RewriteMacros: return "-rewrite-macros";
461 case frontend::RewriteObjC: return "-rewrite-objc";
462 case frontend::RewriteTest: return "-rewrite-test";
463 case frontend::RunAnalysis: return "-analyze";
464 case frontend::MigrateSource: return "-migrate";
465 case frontend::RunPreprocessorOnly: return "-Eonly";
466 }
467
468 llvm_unreachable("Unexpected language kind!");
469 }
470
FileSystemOptsToArgs(const FileSystemOptions & Opts,ToArgsList & Res)471 static void FileSystemOptsToArgs(const FileSystemOptions &Opts, ToArgsList &Res){
472 if (!Opts.WorkingDir.empty())
473 Res.push_back("-working-directory", Opts.WorkingDir);
474 }
475
CodeCompleteOptionsToArgs(const CodeCompleteOptions & Opts,ToArgsList & Res)476 static void CodeCompleteOptionsToArgs(const CodeCompleteOptions &Opts,
477 ToArgsList &Res) {
478 if (Opts.IncludeMacros)
479 Res.push_back("-code-completion-macros");
480 if (Opts.IncludeCodePatterns)
481 Res.push_back("-code-completion-patterns");
482 if (!Opts.IncludeGlobals)
483 Res.push_back("-no-code-completion-globals");
484 if (Opts.IncludeBriefComments)
485 Res.push_back("-code-completion-brief-comments");
486 }
487
FrontendOptsToArgs(const FrontendOptions & Opts,ToArgsList & Res)488 static void FrontendOptsToArgs(const FrontendOptions &Opts, ToArgsList &Res) {
489 if (Opts.DisableFree)
490 Res.push_back("-disable-free");
491 if (Opts.RelocatablePCH)
492 Res.push_back("-relocatable-pch");
493 if (Opts.ShowHelp)
494 Res.push_back("-help");
495 if (Opts.ShowStats)
496 Res.push_back("-print-stats");
497 if (Opts.ShowTimers)
498 Res.push_back("-ftime-report");
499 if (Opts.ShowVersion)
500 Res.push_back("-version");
501 if (Opts.FixWhatYouCan)
502 Res.push_back("-fix-what-you-can");
503 if (Opts.FixOnlyWarnings)
504 Res.push_back("-fix-only-warnings");
505 if (Opts.FixAndRecompile)
506 Res.push_back("-fixit-recompile");
507 if (Opts.FixToTemporaries)
508 Res.push_back("-fixit-to-temporary");
509 switch (Opts.ARCMTAction) {
510 case FrontendOptions::ARCMT_None:
511 break;
512 case FrontendOptions::ARCMT_Check:
513 Res.push_back("-arcmt-check");
514 break;
515 case FrontendOptions::ARCMT_Modify:
516 Res.push_back("-arcmt-modify");
517 break;
518 case FrontendOptions::ARCMT_Migrate:
519 Res.push_back("-arcmt-migrate");
520 break;
521 }
522 CodeCompleteOptionsToArgs(Opts.CodeCompleteOpts, Res);
523 if (!Opts.MTMigrateDir.empty())
524 Res.push_back("-mt-migrate-directory", Opts.MTMigrateDir);
525 if (!Opts.ARCMTMigrateReportOut.empty())
526 Res.push_back("-arcmt-migrate-report-output", Opts.ARCMTMigrateReportOut);
527 if (Opts.ARCMTMigrateEmitARCErrors)
528 Res.push_back("-arcmt-migrate-emit-errors");
529
530 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Literals)
531 Res.push_back("-objcmt-migrate-literals");
532 if (Opts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting)
533 Res.push_back("-objcmt-migrate-subscripting");
534
535 bool NeedLang = false;
536 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i)
537 if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].File) !=
538 Opts.Inputs[i].Kind)
539 NeedLang = true;
540 if (NeedLang)
541 Res.push_back("-x", getInputKindName(Opts.Inputs[0].Kind));
542 for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) {
543 assert((!NeedLang || Opts.Inputs[i].Kind == Opts.Inputs[0].Kind) &&
544 "Unable to represent this input vector!");
545 Res.push_back(Opts.Inputs[i].File);
546 }
547
548 if (!Opts.OutputFile.empty())
549 Res.push_back("-o", Opts.OutputFile);
550 if (!Opts.CodeCompletionAt.FileName.empty())
551 Res.push_back("-code-completion-at",
552 Opts.CodeCompletionAt.FileName + ":" +
553 llvm::utostr(Opts.CodeCompletionAt.Line) + ":" +
554 llvm::utostr(Opts.CodeCompletionAt.Column));
555 if (Opts.ProgramAction != frontend::PluginAction)
556 Res.push_back(getActionName(Opts.ProgramAction));
557 if (!Opts.ActionName.empty()) {
558 Res.push_back("-plugin", Opts.ActionName);
559 for(unsigned i = 0, e = Opts.PluginArgs.size(); i != e; ++i)
560 Res.push_back("-plugin-arg-" + Opts.ActionName, Opts.PluginArgs[i]);
561 }
562 if (!Opts.ASTDumpFilter.empty())
563 Res.push_back("-ast-dump-filter", Opts.ASTDumpFilter);
564 for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i)
565 Res.push_back("-load", Opts.Plugins[i]);
566 for (unsigned i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) {
567 Res.push_back("-add-plugin", Opts.AddPluginActions[i]);
568 for(unsigned ai = 0, ae = Opts.AddPluginArgs.size(); ai != ae; ++ai)
569 Res.push_back("-plugin-arg-" + Opts.AddPluginActions[i],
570 Opts.AddPluginArgs[i][ai]);
571 }
572 for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i)
573 Res.push_back("-ast-merge", Opts.ASTMergeFiles[i]);
574 for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i)
575 Res.push_back("-mllvm", Opts.LLVMArgs[i]);
576 if (!Opts.OverrideRecordLayoutsFile.empty())
577 Res.push_back("-foverride-record-layout=" + Opts.OverrideRecordLayoutsFile);
578 }
579
HeaderSearchOptsToArgs(const HeaderSearchOptions & Opts,ToArgsList & Res)580 static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts,
581 ToArgsList &Res) {
582 if (Opts.Sysroot != "/") {
583 Res.push_back("-isysroot");
584 Res.push_back(Opts.Sysroot);
585 }
586
587 /// User specified include entries.
588 for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) {
589 const HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
590 if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied))
591 llvm::report_fatal_error("Invalid option set!");
592 if (E.IsUserSupplied) {
593 switch (E.Group) {
594 case frontend::After:
595 Res.push_back("-idirafter");
596 break;
597
598 case frontend::Quoted:
599 Res.push_back("-iquote");
600 break;
601
602 case frontend::System:
603 Res.push_back("-isystem");
604 break;
605
606 case frontend::IndexHeaderMap:
607 Res.push_back("-index-header-map");
608 Res.push_back(E.IsFramework? "-F" : "-I");
609 break;
610
611 case frontend::CSystem:
612 Res.push_back("-c-isystem");
613 break;
614
615 case frontend::CXXSystem:
616 Res.push_back("-cxx-isystem");
617 break;
618
619 case frontend::ObjCSystem:
620 Res.push_back("-objc-isystem");
621 break;
622
623 case frontend::ObjCXXSystem:
624 Res.push_back("-objcxx-isystem");
625 break;
626
627 case frontend::Angled:
628 Res.push_back(E.IsFramework ? "-F" : "-I");
629 break;
630 }
631 } else {
632 if (E.IsInternal) {
633 assert(E.Group == frontend::System && "Unexpected header search group");
634 if (E.ImplicitExternC)
635 Res.push_back("-internal-externc-isystem");
636 else
637 Res.push_back("-internal-isystem");
638 } else {
639 if (E.Group != frontend::Angled && E.Group != frontend::System)
640 llvm::report_fatal_error("Invalid option set!");
641 Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" :
642 "-iwithprefix");
643 }
644 }
645 Res.push_back(E.Path);
646 }
647
648 /// User-specified system header prefixes.
649 for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) {
650 if (Opts.SystemHeaderPrefixes[i].IsSystemHeader)
651 Res.push_back("-isystem-prefix");
652 else
653 Res.push_back("-ino-system-prefix");
654
655 Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix);
656 }
657
658 if (!Opts.ResourceDir.empty())
659 Res.push_back("-resource-dir", Opts.ResourceDir);
660 if (!Opts.ModuleCachePath.empty())
661 Res.push_back("-fmodule-cache-path", Opts.ModuleCachePath);
662 if (!Opts.UseStandardSystemIncludes)
663 Res.push_back("-nostdsysteminc");
664 if (!Opts.UseStandardCXXIncludes)
665 Res.push_back("-nostdinc++");
666 if (Opts.UseLibcxx)
667 Res.push_back("-stdlib=libc++");
668 if (Opts.Verbose)
669 Res.push_back("-v");
670 }
671
LangOptsToArgs(const LangOptions & Opts,ToArgsList & Res)672 static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) {
673 LangOptions DefaultLangOpts;
674
675 // FIXME: Need to set -std to get all the implicit options.
676
677 // FIXME: We want to only pass options relative to the defaults, which
678 // requires constructing a target. :(
679 //
680 // It would be better to push the all target specific choices into the driver,
681 // so that everything below that was more uniform.
682
683 if (Opts.Trigraphs)
684 Res.push_back("-trigraphs");
685 // Implicit based on the input kind:
686 // AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL
687 // Implicit based on the input language standard:
688 // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode
689 if (Opts.DollarIdents)
690 Res.push_back("-fdollars-in-identifiers");
691 if (Opts.GNUMode && !Opts.GNUKeywords)
692 Res.push_back("-fno-gnu-keywords");
693 if (!Opts.GNUMode && Opts.GNUKeywords)
694 Res.push_back("-fgnu-keywords");
695 if (Opts.MicrosoftExt)
696 Res.push_back("-fms-extensions");
697 if (Opts.MicrosoftMode)
698 Res.push_back("-fms-compatibility");
699 if (Opts.MSCVersion != 0)
700 Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion));
701 if (Opts.Borland)
702 Res.push_back("-fborland-extensions");
703 if (Opts.ObjCDefaultSynthProperties)
704 Res.push_back("-fobjc-default-synthesize-properties");
705 // NoInline is implicit.
706 if (!Opts.CXXOperatorNames)
707 Res.push_back("-fno-operator-names");
708 if (Opts.PascalStrings)
709 Res.push_back("-fpascal-strings");
710 if (Opts.CatchUndefined)
711 Res.push_back("-fcatch-undefined-behavior");
712 if (Opts.AddressSanitizer)
713 Res.push_back("-faddress-sanitizer");
714 if (Opts.ThreadSanitizer)
715 Res.push_back("-fthread-sanitizer");
716 if (Opts.WritableStrings)
717 Res.push_back("-fwritable-strings");
718 if (Opts.ConstStrings)
719 Res.push_back("-fconst-strings");
720 if (!Opts.LaxVectorConversions)
721 Res.push_back("-fno-lax-vector-conversions");
722 if (Opts.AltiVec)
723 Res.push_back("-faltivec");
724 if (Opts.Exceptions)
725 Res.push_back("-fexceptions");
726 if (Opts.ObjCExceptions)
727 Res.push_back("-fobjc-exceptions");
728 if (Opts.CXXExceptions)
729 Res.push_back("-fcxx-exceptions");
730 if (Opts.SjLjExceptions)
731 Res.push_back("-fsjlj-exceptions");
732 if (Opts.TraditionalCPP)
733 Res.push_back("-traditional-cpp");
734 if (!Opts.RTTI)
735 Res.push_back("-fno-rtti");
736 if (Opts.MSBitfields)
737 Res.push_back("-mms-bitfields");
738 if (Opts.Freestanding)
739 Res.push_back("-ffreestanding");
740 if (Opts.NoBuiltin)
741 Res.push_back("-fno-builtin");
742 if (!Opts.AssumeSaneOperatorNew)
743 Res.push_back("-fno-assume-sane-operator-new");
744 if (!Opts.ThreadsafeStatics)
745 Res.push_back("-fno-threadsafe-statics");
746 if (Opts.POSIXThreads)
747 Res.push_back("-pthread");
748 if (Opts.Blocks)
749 Res.push_back("-fblocks");
750 if (Opts.BlocksRuntimeOptional)
751 Res.push_back("-fblocks-runtime-optional");
752 if (Opts.Modules)
753 Res.push_back("-fmodules");
754 if (Opts.EmitAllDecls)
755 Res.push_back("-femit-all-decls");
756 if (Opts.MathErrno)
757 Res.push_back("-fmath-errno");
758 switch (Opts.getSignedOverflowBehavior()) {
759 case LangOptions::SOB_Undefined: break;
760 case LangOptions::SOB_Defined: Res.push_back("-fwrapv"); break;
761 case LangOptions::SOB_Trapping:
762 Res.push_back("-ftrapv");
763 if (!Opts.OverflowHandler.empty())
764 Res.push_back("-ftrapv-handler", Opts.OverflowHandler);
765 break;
766 }
767 switch (Opts.getFPContractMode()) {
768 case LangOptions::FPC_Off: Res.push_back("-ffp-contract=off"); break;
769 case LangOptions::FPC_On: Res.push_back("-ffp-contract=on"); break;
770 case LangOptions::FPC_Fast: Res.push_back("-ffp-contract=fast"); break;
771 }
772 if (Opts.HeinousExtensions)
773 Res.push_back("-fheinous-gnu-extensions");
774 // Optimize is implicit.
775 // OptimizeSize is implicit.
776 if (Opts.FastMath)
777 Res.push_back("-ffast-math");
778 if (Opts.Static)
779 Res.push_back("-static-define");
780 if (Opts.DumpRecordLayoutsSimple)
781 Res.push_back("-fdump-record-layouts-simple");
782 else if (Opts.DumpRecordLayouts)
783 Res.push_back("-fdump-record-layouts");
784 if (Opts.DumpVTableLayouts)
785 Res.push_back("-fdump-vtable-layouts");
786 if (Opts.NoBitFieldTypeAlign)
787 Res.push_back("-fno-bitfield-type-alignment");
788 if (Opts.PICLevel)
789 Res.push_back("-pic-level", llvm::utostr(Opts.PICLevel));
790 if (Opts.PIELevel)
791 Res.push_back("-pie-level", llvm::utostr(Opts.PIELevel));
792 if (Opts.ObjCGCBitmapPrint)
793 Res.push_back("-print-ivar-layout");
794 if (Opts.NoConstantCFStrings)
795 Res.push_back("-fno-constant-cfstrings");
796 if (!Opts.AccessControl)
797 Res.push_back("-fno-access-control");
798 if (!Opts.CharIsSigned)
799 Res.push_back("-fno-signed-char");
800 if (Opts.CPlusPlus && !Opts.WChar)
801 Res.push_back("-fno-wchar");
802 if (Opts.ShortWChar)
803 Res.push_back("-fshort-wchar");
804 if (!Opts.ElideConstructors)
805 Res.push_back("-fno-elide-constructors");
806 if (Opts.getGC() != LangOptions::NonGC) {
807 if (Opts.getGC() == LangOptions::HybridGC) {
808 Res.push_back("-fobjc-gc");
809 } else {
810 assert(Opts.getGC() == LangOptions::GCOnly && "Invalid GC mode!");
811 Res.push_back("-fobjc-gc-only");
812 }
813 }
814 Res.push_back("-fobjc-runtime=" + Opts.ObjCRuntime.getAsString());
815 if (Opts.ObjCAutoRefCount)
816 Res.push_back("-fobjc-arc");
817 if (Opts.ObjCARCWeak)
818 Res.push_back("-fobjc-runtime-has-weak");
819 if (!Opts.ObjCInferRelatedResultType)
820 Res.push_back("-fno-objc-infer-related-result-type");
821
822 if (Opts.AppleKext)
823 Res.push_back("-fapple-kext");
824
825 if (Opts.getVisibilityMode() != DefaultVisibility) {
826 Res.push_back("-fvisibility");
827 if (Opts.getVisibilityMode() == HiddenVisibility) {
828 Res.push_back("hidden");
829 } else {
830 assert(Opts.getVisibilityMode() == ProtectedVisibility &&
831 "Invalid visibility!");
832 Res.push_back("protected");
833 }
834 }
835 if (Opts.InlineVisibilityHidden)
836 Res.push_back("-fvisibility-inlines-hidden");
837
838 if (Opts.getStackProtector() != 0)
839 Res.push_back("-stack-protector", llvm::utostr(Opts.getStackProtector()));
840 if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth)
841 Res.push_back("-ftemplate-depth", llvm::utostr(Opts.InstantiationDepth));
842 if (Opts.ConstexprCallDepth != DefaultLangOpts.ConstexprCallDepth)
843 Res.push_back("-fconstexpr-depth", llvm::utostr(Opts.ConstexprCallDepth));
844 if (!Opts.ObjCConstantStringClass.empty())
845 Res.push_back("-fconstant-string-class", Opts.ObjCConstantStringClass);
846 if (Opts.FakeAddressSpaceMap)
847 Res.push_back("-ffake-address-space-map");
848 if (Opts.ParseUnknownAnytype)
849 Res.push_back("-funknown-anytype");
850 if (Opts.DebuggerSupport)
851 Res.push_back("-fdebugger-support");
852 if (Opts.DebuggerCastResultToId)
853 Res.push_back("-fdebugger-cast-result-to-id");
854 if (Opts.DebuggerObjCLiteral)
855 Res.push_back("-fdebugger-objc-literal");
856 if (Opts.DelayedTemplateParsing)
857 Res.push_back("-fdelayed-template-parsing");
858 if (Opts.Deprecated)
859 Res.push_back("-fdeprecated-macro");
860 if (Opts.ApplePragmaPack)
861 Res.push_back("-fapple-pragma-pack");
862 if (!Opts.CurrentModule.empty())
863 Res.push_back("-fmodule-name=" + Opts.CurrentModule);
864 }
865
PreprocessorOptsToArgs(const PreprocessorOptions & Opts,ToArgsList & Res)866 static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts,
867 ToArgsList &Res) {
868 for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i)
869 Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") +
870 Opts.Macros[i].first);
871 for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) {
872 // FIXME: We need to avoid reincluding the implicit PCH and PTH includes.
873 Res.push_back("-include", Opts.Includes[i]);
874 }
875 for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i)
876 Res.push_back("-imacros", Opts.MacroIncludes[i]);
877 if (!Opts.UsePredefines)
878 Res.push_back("-undef");
879 if (Opts.DetailedRecord)
880 Res.push_back("-detailed-preprocessing-record");
881 if (!Opts.ImplicitPCHInclude.empty())
882 Res.push_back("-include-pch", Opts.ImplicitPCHInclude);
883 if (!Opts.ImplicitPTHInclude.empty())
884 Res.push_back("-include-pth", Opts.ImplicitPTHInclude);
885 if (!Opts.TokenCache.empty()) {
886 if (Opts.ImplicitPTHInclude.empty())
887 Res.push_back("-token-cache", Opts.TokenCache);
888 else
889 assert(Opts.ImplicitPTHInclude == Opts.TokenCache &&
890 "Unsupported option combination!");
891 }
892 for (unsigned i = 0, e = Opts.ChainedIncludes.size(); i != e; ++i)
893 Res.push_back("-chain-include", Opts.ChainedIncludes[i]);
894 for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) {
895 Res.push_back("-remap-file", Opts.RemappedFiles[i].first + ";" +
896 Opts.RemappedFiles[i].second);
897 }
898 }
899
PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions & Opts,ToArgsList & Res)900 static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts,
901 ToArgsList &Res) {
902 if (!Opts.ShowCPP && !Opts.ShowMacros)
903 llvm::report_fatal_error("Invalid option combination!");
904
905 if (Opts.ShowCPP && Opts.ShowMacros)
906 Res.push_back("-dD");
907 else if (!Opts.ShowCPP && Opts.ShowMacros)
908 Res.push_back("-dM");
909
910 if (!Opts.ShowLineMarkers)
911 Res.push_back("-P");
912 if (Opts.ShowComments)
913 Res.push_back("-C");
914 if (Opts.ShowMacroComments)
915 Res.push_back("-CC");
916 }
917
TargetOptsToArgs(const TargetOptions & Opts,ToArgsList & Res)918 static void TargetOptsToArgs(const TargetOptions &Opts,
919 ToArgsList &Res) {
920 Res.push_back("-triple");
921 Res.push_back(Opts.Triple);
922 if (!Opts.CPU.empty())
923 Res.push_back("-target-cpu", Opts.CPU);
924 if (!Opts.ABI.empty())
925 Res.push_back("-target-abi", Opts.ABI);
926 if (!Opts.LinkerVersion.empty())
927 Res.push_back("-target-linker-version", Opts.LinkerVersion);
928 if (!Opts.CXXABI.empty())
929 Res.push_back("-cxx-abi", Opts.CXXABI);
930 for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i)
931 Res.push_back("-target-feature", Opts.Features[i]);
932 }
933
toArgs(std::vector<std::string> & Res) const934 void CompilerInvocation::toArgs(std::vector<std::string> &Res) const {
935 ToArgsList List(Res);
936 AnalyzerOptsToArgs(*getAnalyzerOpts(), List);
937 CodeGenOptsToArgs(getCodeGenOpts(), List);
938 DependencyOutputOptsToArgs(getDependencyOutputOpts(), List);
939 DiagnosticOptsToArgs(getDiagnosticOpts(), List);
940 FileSystemOptsToArgs(getFileSystemOpts(), List);
941 FrontendOptsToArgs(getFrontendOpts(), List);
942 HeaderSearchOptsToArgs(getHeaderSearchOpts(), List);
943 LangOptsToArgs(*getLangOpts(), List);
944 PreprocessorOptsToArgs(getPreprocessorOpts(), List);
945 PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), List);
946 TargetOptsToArgs(getTargetOpts(), List);
947 }
948
949 //===----------------------------------------------------------------------===//
950 // Deserialization (to args)
951 //===----------------------------------------------------------------------===//
952
953 using namespace clang::driver;
954 using namespace clang::driver::options;
955
956 //
957
getOptimizationLevel(ArgList & Args,InputKind IK,DiagnosticsEngine & Diags)958 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
959 DiagnosticsEngine &Diags) {
960 unsigned DefaultOpt = 0;
961 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable))
962 DefaultOpt = 2;
963
964 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
965 if (A->getOption().matches(options::OPT_O0))
966 return 0;
967
968 assert (A->getOption().matches(options::OPT_O));
969
970 llvm::StringRef S(A->getValue(Args));
971 if (S == "s" || S == "z" || S.empty())
972 return 2;
973
974 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags);
975 }
976
977 return DefaultOpt;
978 }
979
getOptimizationLevelSize(ArgList & Args,InputKind IK,DiagnosticsEngine & Diags)980 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK,
981 DiagnosticsEngine &Diags) {
982 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
983 if (A->getOption().matches(options::OPT_O)) {
984 switch (A->getValue(Args)[0]) {
985 default:
986 return 0;
987 case 's':
988 return 1;
989 case 'z':
990 return 2;
991 }
992 }
993 }
994 return 0;
995 }
996
addWarningArgs(ArgList & Args,std::vector<std::string> & Warnings)997 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) {
998 for (arg_iterator I = Args.filtered_begin(OPT_W_Group),
999 E = Args.filtered_end(); I != E; ++I) {
1000 Arg *A = *I;
1001 // If the argument is a pure flag, add its name (minus the "-W" at the beginning)
1002 // to the warning list. Else, add its value (for the OPT_W case).
1003 if (A->getOption().getKind() == Option::FlagClass) {
1004 Warnings.push_back(A->getOption().getName().substr(2));
1005 } else {
1006 for (unsigned Idx = 0, End = A->getNumValues();
1007 Idx < End; ++Idx) {
1008 StringRef V = A->getValue(Args, Idx);
1009 // "-Wl," and such are not warning options.
1010 // FIXME: Should be handled by putting these in separate flags.
1011 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,"))
1012 continue;
1013
1014 Warnings.push_back(V);
1015 }
1016 }
1017 }
1018 }
1019
ParseAnalyzerArgs(AnalyzerOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags)1020 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
1021 DiagnosticsEngine &Diags) {
1022 using namespace options;
1023 bool Success = true;
1024 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
1025 StringRef Name = A->getValue(Args);
1026 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
1027 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
1028 .Case(CMDFLAG, NAME##Model)
1029 #include "clang/StaticAnalyzer/Core/Analyses.def"
1030 .Default(NumStores);
1031 if (Value == NumStores) {
1032 Diags.Report(diag::err_drv_invalid_value)
1033 << A->getAsString(Args) << Name;
1034 Success = false;
1035 } else {
1036 Opts.AnalysisStoreOpt = Value;
1037 }
1038 }
1039
1040 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
1041 StringRef Name = A->getValue(Args);
1042 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
1043 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
1044 .Case(CMDFLAG, NAME##Model)
1045 #include "clang/StaticAnalyzer/Core/Analyses.def"
1046 .Default(NumConstraints);
1047 if (Value == NumConstraints) {
1048 Diags.Report(diag::err_drv_invalid_value)
1049 << A->getAsString(Args) << Name;
1050 Success = false;
1051 } else {
1052 Opts.AnalysisConstraintsOpt = Value;
1053 }
1054 }
1055
1056 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
1057 StringRef Name = A->getValue(Args);
1058 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
1059 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \
1060 .Case(CMDFLAG, PD_##NAME)
1061 #include "clang/StaticAnalyzer/Core/Analyses.def"
1062 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
1063 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
1064 Diags.Report(diag::err_drv_invalid_value)
1065 << A->getAsString(Args) << Name;
1066 Success = false;
1067 } else {
1068 Opts.AnalysisDiagOpt = Value;
1069 }
1070 }
1071
1072 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
1073 StringRef Name = A->getValue(Args);
1074 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
1075 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
1076 .Case(CMDFLAG, NAME)
1077 #include "clang/StaticAnalyzer/Core/Analyses.def"
1078 .Default(NumPurgeModes);
1079 if (Value == NumPurgeModes) {
1080 Diags.Report(diag::err_drv_invalid_value)
1081 << A->getAsString(Args) << Name;
1082 Success = false;
1083 } else {
1084 Opts.AnalysisPurgeOpt = Value;
1085 }
1086 }
1087
1088 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) {
1089 StringRef Name = A->getValue(Args);
1090 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name)
1091 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \
1092 .Case(CMDFLAG, NAME)
1093 #include "clang/StaticAnalyzer/Core/Analyses.def"
1094 .Default(NumIPAModes);
1095 if (Value == NumIPAModes) {
1096 Diags.Report(diag::err_drv_invalid_value)
1097 << A->getAsString(Args) << Name;
1098 Success = false;
1099 } else {
1100 Opts.IPAMode = Value;
1101 }
1102 }
1103
1104 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
1105 StringRef Name = A->getValue(Args);
1106 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
1107 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
1108 .Case(CMDFLAG, NAME)
1109 #include "clang/StaticAnalyzer/Core/Analyses.def"
1110 .Default(NumInliningModes);
1111 if (Value == NumInliningModes) {
1112 Diags.Report(diag::err_drv_invalid_value)
1113 << A->getAsString(Args) << Name;
1114 Success = false;
1115 } else {
1116 Opts.InliningMode = Value;
1117 }
1118 }
1119
1120 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
1121 Opts.visualizeExplodedGraphWithGraphViz =
1122 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
1123 Opts.visualizeExplodedGraphWithUbiGraph =
1124 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
1125 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
1126 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
1127 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
1128 Opts.AnalyzeNestedBlocks =
1129 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
1130 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
1131 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
1132 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
1133 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
1134 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags);
1135 Opts.maxBlockVisitOnPath = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags);
1136 Opts.eagerlyTrimExplodedGraph = !Args.hasArg(OPT_analyzer_no_eagerly_trim_egraph);
1137 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
1138 Opts.InlineMaxStackDepth =
1139 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth,
1140 Opts.InlineMaxStackDepth, Diags);
1141 Opts.InlineMaxFunctionSize =
1142 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size,
1143 Opts.InlineMaxFunctionSize, Diags);
1144
1145 Opts.CheckersControlList.clear();
1146 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker,
1147 OPT_analyzer_disable_checker),
1148 ie = Args.filtered_end(); it != ie; ++it) {
1149 const Arg *A = *it;
1150 A->claim();
1151 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
1152 // We can have a list of comma separated checker names, e.g:
1153 // '-analyzer-checker=cocoa,unix'
1154 StringRef checkerList = A->getValue(Args);
1155 SmallVector<StringRef, 4> checkers;
1156 checkerList.split(checkers, ",");
1157 for (unsigned i = 0, e = checkers.size(); i != e; ++i)
1158 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable));
1159 }
1160
1161 // Go through the analyzer configuration options.
1162 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config),
1163 ie = Args.filtered_end(); it != ie; ++it) {
1164 const Arg *A = *it;
1165 A->claim();
1166 // We can have a list of comma separated config names, e.g:
1167 // '-analyzer-config key1=val1,key2=val2'
1168 StringRef configList = A->getValue(Args);
1169 SmallVector<StringRef, 4> configVals;
1170 configList.split(configVals, ",");
1171 for (unsigned i = 0, e = configVals.size(); i != e; ++i) {
1172 StringRef key, val;
1173 llvm::tie(key, val) = configVals[i].split("=");
1174 if (val.empty()) {
1175 Diags.Report(SourceLocation(),
1176 diag::err_analyzer_config_no_value) << configVals[i];
1177 Success = false;
1178 break;
1179 }
1180 if (val.find('=') != StringRef::npos) {
1181 Diags.Report(SourceLocation(),
1182 diag::err_analyzer_config_multiple_values)
1183 << configVals[i];
1184 Success = false;
1185 break;
1186 }
1187 Opts.Config[key] = val;
1188 }
1189 }
1190
1191 return Success;
1192 }
1193
ParseMigratorArgs(MigratorOptions & Opts,ArgList & Args)1194 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
1195 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
1196 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
1197 return true;
1198 }
1199
ParseCodeGenArgs(CodeGenOptions & Opts,ArgList & Args,InputKind IK,DiagnosticsEngine & Diags)1200 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
1201 DiagnosticsEngine &Diags) {
1202 using namespace options;
1203 bool Success = true;
1204
1205 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags);
1206 if (OptLevel > 3) {
1207 Diags.Report(diag::err_drv_invalid_value)
1208 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel;
1209 OptLevel = 3;
1210 Success = false;
1211 }
1212 Opts.OptimizationLevel = OptLevel;
1213
1214 // We must always run at least the always inlining pass.
1215 Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
1216 : CodeGenOptions::OnlyAlwaysInlining;
1217 // -fno-inline-functions overrides OptimizationLevel > 1.
1218 Opts.NoInline = Args.hasArg(OPT_fno_inline);
1219 Opts.Inlining = Args.hasArg(OPT_fno_inline_functions) ?
1220 CodeGenOptions::OnlyAlwaysInlining : Opts.Inlining;
1221
1222 if (Args.hasArg(OPT_gline_tables_only)) {
1223 Opts.DebugInfo = CodeGenOptions::DebugLineTablesOnly;
1224 } else if (Args.hasArg(OPT_g_Flag)) {
1225 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true))
1226 Opts.DebugInfo = CodeGenOptions::LimitedDebugInfo;
1227 else
1228 Opts.DebugInfo = CodeGenOptions::FullDebugInfo;
1229 }
1230
1231 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
1232 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
1233 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
1234 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
1235 OPT_fuse_register_sized_bitfield_access);
1236 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
1237 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
1238 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
1239 Opts.NoCommon = Args.hasArg(OPT_fno_common);
1240 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
1241 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags);
1242 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
1243 Args.hasArg(OPT_ffreestanding));
1244 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) ||
1245 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize);
1246
1247 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
1248 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
1249 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device);
1250 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
1251 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
1252 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
1253 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
1254 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
1255 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
1256 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
1257 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables);
1258 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable);
1259 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
1260 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
1261 Args.hasArg(OPT_cl_finite_math_only)||
1262 Args.hasArg(OPT_cl_fast_relaxed_math));
1263 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
1264 Args.hasArg(OPT_cl_finite_math_only)||
1265 Args.hasArg(OPT_cl_fast_relaxed_math));
1266 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
1267 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
1268 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags);
1269 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge);
1270 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
1271 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
1272 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
1273 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
1274 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm);
1275 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
1276 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
1277 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
1278 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
1279 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
1280 Args.hasArg(OPT_cl_fast_relaxed_math);
1281 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
1282 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
1283 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
1284 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0,
1285 Diags);
1286 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
1287
1288 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections);
1289 Opts.DataSections = Args.hasArg(OPT_fdata_sections);
1290
1291 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
1292 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
1293
1294 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
1295 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
1296 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
1297 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
1298 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
1299 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file);
1300 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
1301 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file);
1302 Opts.SSPBufferSize =
1303 Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags);
1304 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
1305 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
1306 StringRef Val = A->getValue(Args);
1307 Val.getAsInteger(10, Opts.StackAlignment);
1308 }
1309
1310 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
1311 StringRef Name = A->getValue(Args);
1312 unsigned Method = llvm::StringSwitch<unsigned>(Name)
1313 .Case("legacy", CodeGenOptions::Legacy)
1314 .Case("non-legacy", CodeGenOptions::NonLegacy)
1315 .Case("mixed", CodeGenOptions::Mixed)
1316 .Default(~0U);
1317 if (Method == ~0U) {
1318 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1319 Success = false;
1320 } else {
1321 Opts.ObjCDispatchMethod = Method;
1322 }
1323 }
1324
1325 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
1326 StringRef Name = A->getValue(Args);
1327 unsigned Model = llvm::StringSwitch<unsigned>(Name)
1328 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
1329 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
1330 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
1331 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
1332 .Default(~0U);
1333 if (Model == ~0U) {
1334 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1335 Success = false;
1336 } else {
1337 Opts.DefaultTLSModel = static_cast<CodeGenOptions::TLSModel>(Model);
1338 }
1339 }
1340
1341 return Success;
1342 }
1343
ParseDependencyOutputArgs(DependencyOutputOptions & Opts,ArgList & Args)1344 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
1345 ArgList &Args) {
1346 using namespace options;
1347 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
1348 Opts.Targets = Args.getAllArgValues(OPT_MT);
1349 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
1350 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
1351 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
1352 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
1353 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
1354 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
1355 }
1356
ParseDiagnosticArgs(DiagnosticOptions & Opts,ArgList & Args,DiagnosticsEngine * Diags)1357 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
1358 DiagnosticsEngine *Diags) {
1359 using namespace options;
1360 bool Success = true;
1361
1362 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
1363 Opts.DiagnosticSerializationFile =
1364 Args.getLastArgValue(OPT_diagnostic_serialized_file);
1365 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
1366 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
1367 Opts.Pedantic = Args.hasArg(OPT_pedantic);
1368 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
1369 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
1370 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
1371 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
1372 OPT_fno_show_column,
1373 /*Default=*/true);
1374 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
1375 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
1376 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
1377
1378 // Default behavior is to not to show note include stacks.
1379 Opts.ShowNoteIncludeStack = false;
1380 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
1381 OPT_fno_diagnostics_show_note_include_stack))
1382 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
1383 Opts.ShowNoteIncludeStack = true;
1384
1385 StringRef ShowOverloads =
1386 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
1387 if (ShowOverloads == "best")
1388 Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best;
1389 else if (ShowOverloads == "all")
1390 Opts.ShowOverloads = DiagnosticsEngine::Ovl_All;
1391 else {
1392 Success = false;
1393 if (Diags)
1394 Diags->Report(diag::err_drv_invalid_value)
1395 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1396 << ShowOverloads;
1397 }
1398
1399 StringRef ShowCategory =
1400 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1401 if (ShowCategory == "none")
1402 Opts.ShowCategories = 0;
1403 else if (ShowCategory == "id")
1404 Opts.ShowCategories = 1;
1405 else if (ShowCategory == "name")
1406 Opts.ShowCategories = 2;
1407 else {
1408 Success = false;
1409 if (Diags)
1410 Diags->Report(diag::err_drv_invalid_value)
1411 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1412 << ShowCategory;
1413 }
1414
1415 StringRef Format =
1416 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1417 if (Format == "clang")
1418 Opts.Format = DiagnosticOptions::Clang;
1419 else if (Format == "msvc")
1420 Opts.Format = DiagnosticOptions::Msvc;
1421 else if (Format == "vi")
1422 Opts.Format = DiagnosticOptions::Vi;
1423 else {
1424 Success = false;
1425 if (Diags)
1426 Diags->Report(diag::err_drv_invalid_value)
1427 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1428 << Format;
1429 }
1430
1431 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1432 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1433 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
1434 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1435 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1436 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags);
1437 Opts.MacroBacktraceLimit
1438 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit,
1439 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1440 Opts.TemplateBacktraceLimit
1441 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit,
1442 DiagnosticOptions::DefaultTemplateBacktraceLimit,
1443 Diags);
1444 Opts.ConstexprBacktraceLimit
1445 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit,
1446 DiagnosticOptions::DefaultConstexprBacktraceLimit,
1447 Diags);
1448 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop,
1449 DiagnosticOptions::DefaultTabStop, Diags);
1450 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1451 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1452 if (Diags)
1453 Diags->Report(diag::warn_ignoring_ftabstop_value)
1454 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1455 }
1456 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags);
1457 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information);
1458 addWarningArgs(Args, Opts.Warnings);
1459
1460 return Success;
1461 }
1462
ParseFileSystemArgs(FileSystemOptions & Opts,ArgList & Args)1463 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1464 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1465 }
1466
ParseFrontendArgs(FrontendOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags)1467 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1468 DiagnosticsEngine &Diags) {
1469 using namespace options;
1470 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1471 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1472 switch (A->getOption().getID()) {
1473 default:
1474 llvm_unreachable("Invalid option in group!");
1475 case OPT_ast_list:
1476 Opts.ProgramAction = frontend::ASTDeclList; break;
1477 case OPT_ast_dump:
1478 Opts.ProgramAction = frontend::ASTDump; break;
1479 case OPT_ast_dump_xml:
1480 Opts.ProgramAction = frontend::ASTDumpXML; break;
1481 case OPT_ast_print:
1482 Opts.ProgramAction = frontend::ASTPrint; break;
1483 case OPT_ast_view:
1484 Opts.ProgramAction = frontend::ASTView; break;
1485 case OPT_dump_raw_tokens:
1486 Opts.ProgramAction = frontend::DumpRawTokens; break;
1487 case OPT_dump_tokens:
1488 Opts.ProgramAction = frontend::DumpTokens; break;
1489 case OPT_S:
1490 Opts.ProgramAction = frontend::EmitAssembly; break;
1491 case OPT_emit_llvm_bc:
1492 Opts.ProgramAction = frontend::EmitBC; break;
1493 case OPT_emit_html:
1494 Opts.ProgramAction = frontend::EmitHTML; break;
1495 case OPT_emit_llvm:
1496 Opts.ProgramAction = frontend::EmitLLVM; break;
1497 case OPT_emit_llvm_only:
1498 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1499 case OPT_emit_codegen_only:
1500 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1501 case OPT_emit_obj:
1502 Opts.ProgramAction = frontend::EmitObj; break;
1503 case OPT_fixit_EQ:
1504 Opts.FixItSuffix = A->getValue(Args);
1505 // fall-through!
1506 case OPT_fixit:
1507 Opts.ProgramAction = frontend::FixIt; break;
1508 case OPT_emit_module:
1509 Opts.ProgramAction = frontend::GenerateModule; break;
1510 case OPT_emit_pch:
1511 Opts.ProgramAction = frontend::GeneratePCH; break;
1512 case OPT_emit_pth:
1513 Opts.ProgramAction = frontend::GeneratePTH; break;
1514 case OPT_init_only:
1515 Opts.ProgramAction = frontend::InitOnly; break;
1516 case OPT_fsyntax_only:
1517 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1518 case OPT_print_decl_contexts:
1519 Opts.ProgramAction = frontend::PrintDeclContext; break;
1520 case OPT_print_preamble:
1521 Opts.ProgramAction = frontend::PrintPreamble; break;
1522 case OPT_E:
1523 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1524 case OPT_rewrite_macros:
1525 Opts.ProgramAction = frontend::RewriteMacros; break;
1526 case OPT_rewrite_objc:
1527 Opts.ProgramAction = frontend::RewriteObjC; break;
1528 case OPT_rewrite_test:
1529 Opts.ProgramAction = frontend::RewriteTest; break;
1530 case OPT_analyze:
1531 Opts.ProgramAction = frontend::RunAnalysis; break;
1532 case OPT_migrate:
1533 Opts.ProgramAction = frontend::MigrateSource; break;
1534 case OPT_Eonly:
1535 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1536 }
1537 }
1538
1539 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1540 Opts.Plugins.push_back(A->getValue(Args,0));
1541 Opts.ProgramAction = frontend::PluginAction;
1542 Opts.ActionName = A->getValue(Args);
1543
1544 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
1545 end = Args.filtered_end(); it != end; ++it) {
1546 if ((*it)->getValue(Args, 0) == Opts.ActionName)
1547 Opts.PluginArgs.push_back((*it)->getValue(Args, 1));
1548 }
1549 }
1550
1551 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1552 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size());
1553 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) {
1554 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg),
1555 end = Args.filtered_end(); it != end; ++it) {
1556 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i])
1557 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1));
1558 }
1559 }
1560
1561 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1562 Opts.CodeCompletionAt =
1563 ParsedSourceLocation::FromString(A->getValue(Args));
1564 if (Opts.CodeCompletionAt.FileName.empty())
1565 Diags.Report(diag::err_drv_invalid_value)
1566 << A->getAsString(Args) << A->getValue(Args);
1567 }
1568 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1569
1570 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1571 Opts.Plugins = Args.getAllArgValues(OPT_load);
1572 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1573 Opts.ShowHelp = Args.hasArg(OPT_help);
1574 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1575 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1576 Opts.ShowVersion = Args.hasArg(OPT_version);
1577 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1578 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1579 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1580 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1581 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1582 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1583 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1584
1585 Opts.CodeCompleteOpts.IncludeMacros
1586 = Args.hasArg(OPT_code_completion_macros);
1587 Opts.CodeCompleteOpts.IncludeCodePatterns
1588 = Args.hasArg(OPT_code_completion_patterns);
1589 Opts.CodeCompleteOpts.IncludeGlobals
1590 = !Args.hasArg(OPT_no_code_completion_globals);
1591 Opts.CodeCompleteOpts.IncludeBriefComments
1592 = Args.hasArg(OPT_code_completion_brief_comments);
1593
1594 Opts.OverrideRecordLayoutsFile
1595 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1596 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1597 OPT_arcmt_modify,
1598 OPT_arcmt_migrate)) {
1599 switch (A->getOption().getID()) {
1600 default:
1601 llvm_unreachable("missed a case");
1602 case OPT_arcmt_check:
1603 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1604 break;
1605 case OPT_arcmt_modify:
1606 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1607 break;
1608 case OPT_arcmt_migrate:
1609 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1610 break;
1611 }
1612 }
1613 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1614 Opts.ARCMTMigrateReportOut
1615 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1616 Opts.ARCMTMigrateEmitARCErrors
1617 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1618
1619 if (Args.hasArg(OPT_objcmt_migrate_literals))
1620 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1621 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1622 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1623
1624 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1625 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1626 Diags.Report(diag::err_drv_argument_not_allowed_with)
1627 << "ARC migration" << "ObjC migration";
1628 }
1629
1630 InputKind DashX = IK_None;
1631 if (const Arg *A = Args.getLastArg(OPT_x)) {
1632 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args))
1633 .Case("c", IK_C)
1634 .Case("cl", IK_OpenCL)
1635 .Case("cuda", IK_CUDA)
1636 .Case("c++", IK_CXX)
1637 .Case("objective-c", IK_ObjC)
1638 .Case("objective-c++", IK_ObjCXX)
1639 .Case("cpp-output", IK_PreprocessedC)
1640 .Case("assembler-with-cpp", IK_Asm)
1641 .Case("c++-cpp-output", IK_PreprocessedCXX)
1642 .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1643 .Case("objc-cpp-output", IK_PreprocessedObjC)
1644 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1645 .Case("objc++-cpp-output", IK_PreprocessedObjCXX)
1646 .Case("c-header", IK_C)
1647 .Case("cl-header", IK_OpenCL)
1648 .Case("objective-c-header", IK_ObjC)
1649 .Case("c++-header", IK_CXX)
1650 .Case("objective-c++-header", IK_ObjCXX)
1651 .Case("ast", IK_AST)
1652 .Case("ir", IK_LLVM_IR)
1653 .Default(IK_None);
1654 if (DashX == IK_None)
1655 Diags.Report(diag::err_drv_invalid_value)
1656 << A->getAsString(Args) << A->getValue(Args);
1657 }
1658
1659 // '-' is the default input if none is given.
1660 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1661 Opts.Inputs.clear();
1662 if (Inputs.empty())
1663 Inputs.push_back("-");
1664 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1665 InputKind IK = DashX;
1666 if (IK == IK_None) {
1667 IK = FrontendOptions::getInputKindForExtension(
1668 StringRef(Inputs[i]).rsplit('.').second);
1669 // FIXME: Remove this hack.
1670 if (i == 0)
1671 DashX = IK;
1672 }
1673 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK));
1674 }
1675
1676 return DashX;
1677 }
1678
GetResourcesPath(const char * Argv0,void * MainAddr)1679 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1680 void *MainAddr) {
1681 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr);
1682
1683 if (!P.isEmpty()) {
1684 P.eraseComponent(); // Remove /clang from foo/bin/clang
1685 P.eraseComponent(); // Remove /bin from foo/bin
1686
1687 // Get foo/lib/clang/<version>/include
1688 P.appendComponent("lib");
1689 P.appendComponent("clang");
1690 P.appendComponent(CLANG_VERSION_STRING);
1691 }
1692
1693 return P.str();
1694 }
1695
ParseHeaderSearchArgs(HeaderSearchOptions & Opts,ArgList & Args)1696 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1697 using namespace options;
1698 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1699 Opts.Verbose = Args.hasArg(OPT_v);
1700 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1701 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1702 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1703 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1704 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0);
1705 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1706 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path);
1707 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1708
1709 // Add -I..., -F..., and -index-header-map options in order.
1710 bool IsIndexHeaderMap = false;
1711 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F,
1712 OPT_index_header_map),
1713 ie = Args.filtered_end(); it != ie; ++it) {
1714 if ((*it)->getOption().matches(OPT_index_header_map)) {
1715 // -index-header-map applies to the next -I or -F.
1716 IsIndexHeaderMap = true;
1717 continue;
1718 }
1719
1720 frontend::IncludeDirGroup Group
1721 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled;
1722
1723 Opts.AddPath((*it)->getValue(Args), Group, true,
1724 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false);
1725 IsIndexHeaderMap = false;
1726 }
1727
1728 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options.
1729 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1730 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
1731 OPT_iwithprefixbefore),
1732 ie = Args.filtered_end(); it != ie; ++it) {
1733 const Arg *A = *it;
1734 if (A->getOption().matches(OPT_iprefix))
1735 Prefix = A->getValue(Args);
1736 else if (A->getOption().matches(OPT_iwithprefix))
1737 Opts.AddPath(Prefix.str() + A->getValue(Args),
1738 frontend::System, false, false, false);
1739 else
1740 Opts.AddPath(Prefix.str() + A->getValue(Args),
1741 frontend::Angled, false, false, false);
1742 }
1743
1744 for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
1745 ie = Args.filtered_end(); it != ie; ++it)
1746 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false);
1747 for (arg_iterator it = Args.filtered_begin(OPT_iquote),
1748 ie = Args.filtered_end(); it != ie; ++it)
1749 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false);
1750 for (arg_iterator it = Args.filtered_begin(OPT_isystem,
1751 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it)
1752 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false,
1753 !(*it)->getOption().matches(OPT_iwithsysroot));
1754 for (arg_iterator it = Args.filtered_begin(OPT_iframework),
1755 ie = Args.filtered_end(); it != ie; ++it)
1756 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true,
1757 true);
1758
1759 // Add the paths for the various language specific isystem flags.
1760 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem),
1761 ie = Args.filtered_end(); it != ie; ++it)
1762 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true);
1763 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem),
1764 ie = Args.filtered_end(); it != ie; ++it)
1765 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true);
1766 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem),
1767 ie = Args.filtered_end(); it != ie; ++it)
1768 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true);
1769 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem),
1770 ie = Args.filtered_end(); it != ie; ++it)
1771 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false,
1772 true);
1773
1774 // Add the internal paths from a driver that detects standard include paths.
1775 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem,
1776 OPT_internal_externc_isystem),
1777 E = Args.filtered_end();
1778 I != E; ++I)
1779 Opts.AddPath((*I)->getValue(Args), frontend::System,
1780 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true,
1781 (*I)->getOption().matches(OPT_internal_externc_isystem));
1782
1783 // Add the path prefixes which are implicitly treated as being system headers.
1784 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix,
1785 OPT_ino_system_prefix),
1786 E = Args.filtered_end();
1787 I != E; ++I)
1788 Opts.AddSystemHeaderPrefix((*I)->getValue(Args),
1789 (*I)->getOption().matches(OPT_isystem_prefix));
1790 }
1791
setLangDefaults(LangOptions & Opts,InputKind IK,LangStandard::Kind LangStd)1792 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1793 LangStandard::Kind LangStd) {
1794 // Set some properties which depend solely on the input kind; it would be nice
1795 // to move these to the language standard, and have the driver resolve the
1796 // input kind + language standard.
1797 if (IK == IK_Asm) {
1798 Opts.AsmPreprocessor = 1;
1799 } else if (IK == IK_ObjC ||
1800 IK == IK_ObjCXX ||
1801 IK == IK_PreprocessedObjC ||
1802 IK == IK_PreprocessedObjCXX) {
1803 Opts.ObjC1 = Opts.ObjC2 = 1;
1804 }
1805
1806 if (LangStd == LangStandard::lang_unspecified) {
1807 // Based on the base language, pick one.
1808 switch (IK) {
1809 case IK_None:
1810 case IK_AST:
1811 case IK_LLVM_IR:
1812 llvm_unreachable("Invalid input kind!");
1813 case IK_OpenCL:
1814 LangStd = LangStandard::lang_opencl;
1815 break;
1816 case IK_CUDA:
1817 LangStd = LangStandard::lang_cuda;
1818 break;
1819 case IK_Asm:
1820 case IK_C:
1821 case IK_PreprocessedC:
1822 case IK_ObjC:
1823 case IK_PreprocessedObjC:
1824 LangStd = LangStandard::lang_gnu99;
1825 break;
1826 case IK_CXX:
1827 case IK_PreprocessedCXX:
1828 case IK_ObjCXX:
1829 case IK_PreprocessedObjCXX:
1830 LangStd = LangStandard::lang_gnucxx98;
1831 break;
1832 }
1833 }
1834
1835 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1836 Opts.BCPLComment = Std.hasBCPLComments();
1837 Opts.C99 = Std.isC99();
1838 Opts.C11 = Std.isC11();
1839 Opts.CPlusPlus = Std.isCPlusPlus();
1840 Opts.CPlusPlus0x = Std.isCPlusPlus0x();
1841 Opts.Digraphs = Std.hasDigraphs();
1842 Opts.GNUMode = Std.isGNUMode();
1843 Opts.GNUInline = !Std.isC99();
1844 Opts.HexFloats = Std.hasHexFloats();
1845 Opts.ImplicitInt = Std.hasImplicitInt();
1846
1847 // Set OpenCL Version.
1848 if (LangStd == LangStandard::lang_opencl) {
1849 Opts.OpenCL = 1;
1850 Opts.OpenCLVersion = 100;
1851 }
1852 else if (LangStd == LangStandard::lang_opencl11) {
1853 Opts.OpenCL = 1;
1854 Opts.OpenCLVersion = 110;
1855 }
1856 else if (LangStd == LangStandard::lang_opencl12) {
1857 Opts.OpenCL = 1;
1858 Opts.OpenCLVersion = 120;
1859 }
1860
1861 // OpenCL has some additional defaults.
1862 if (Opts.OpenCL) {
1863 Opts.AltiVec = 0;
1864 Opts.CXXOperatorNames = 1;
1865 Opts.LaxVectorConversions = 0;
1866 Opts.DefaultFPContract = 1;
1867 }
1868
1869 if (LangStd == LangStandard::lang_cuda)
1870 Opts.CUDA = 1;
1871
1872 // OpenCL and C++ both have bool, true, false keywords.
1873 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1874
1875 // C++ has wchar_t keyword.
1876 Opts.WChar = Opts.CPlusPlus;
1877
1878 Opts.GNUKeywords = Opts.GNUMode;
1879 Opts.CXXOperatorNames = Opts.CPlusPlus;
1880
1881 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1882 // is specified, or -std is set to a conforming mode.
1883 Opts.Trigraphs = !Opts.GNUMode;
1884
1885 Opts.DollarIdents = !Opts.AsmPreprocessor;
1886 }
1887
ParseLangArgs(LangOptions & Opts,ArgList & Args,InputKind IK,DiagnosticsEngine & Diags)1888 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1889 DiagnosticsEngine &Diags) {
1890 // FIXME: Cleanup per-file based stuff.
1891 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1892 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1893 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args))
1894 #define LANGSTANDARD(id, name, desc, features) \
1895 .Case(name, LangStandard::lang_##id)
1896 #include "clang/Frontend/LangStandards.def"
1897 .Default(LangStandard::lang_unspecified);
1898 if (LangStd == LangStandard::lang_unspecified)
1899 Diags.Report(diag::err_drv_invalid_value)
1900 << A->getAsString(Args) << A->getValue(Args);
1901 else {
1902 // Valid standard, check to make sure language and standard are compatable.
1903 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1904 switch (IK) {
1905 case IK_C:
1906 case IK_ObjC:
1907 case IK_PreprocessedC:
1908 case IK_PreprocessedObjC:
1909 if (!(Std.isC89() || Std.isC99()))
1910 Diags.Report(diag::err_drv_argument_not_allowed_with)
1911 << A->getAsString(Args) << "C/ObjC";
1912 break;
1913 case IK_CXX:
1914 case IK_ObjCXX:
1915 case IK_PreprocessedCXX:
1916 case IK_PreprocessedObjCXX:
1917 if (!Std.isCPlusPlus())
1918 Diags.Report(diag::err_drv_argument_not_allowed_with)
1919 << A->getAsString(Args) << "C++/ObjC++";
1920 break;
1921 case IK_OpenCL:
1922 if (!Std.isC99())
1923 Diags.Report(diag::err_drv_argument_not_allowed_with)
1924 << A->getAsString(Args) << "OpenCL";
1925 break;
1926 case IK_CUDA:
1927 if (!Std.isCPlusPlus())
1928 Diags.Report(diag::err_drv_argument_not_allowed_with)
1929 << A->getAsString(Args) << "CUDA";
1930 break;
1931 default:
1932 break;
1933 }
1934 }
1935 }
1936
1937 // -cl-std only applies for OpenCL language standards.
1938 // Override the -std option in this case.
1939 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
1940 LangStandard::Kind OpenCLLangStd
1941 = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args))
1942 .Case("CL", LangStandard::lang_opencl)
1943 .Case("CL1.1", LangStandard::lang_opencl11)
1944 .Case("CL1.2", LangStandard::lang_opencl12)
1945 .Default(LangStandard::lang_unspecified);
1946
1947 if (OpenCLLangStd == LangStandard::lang_unspecified) {
1948 Diags.Report(diag::err_drv_invalid_value)
1949 << A->getAsString(Args) << A->getValue(Args);
1950 }
1951 else
1952 LangStd = OpenCLLangStd;
1953 }
1954
1955 CompilerInvocation::setLangDefaults(Opts, IK, LangStd);
1956
1957 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1958 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1959 // while a subset (the non-C++ GNU keywords) is provided by GCC's
1960 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1961 // name, as it doesn't seem a useful distinction.
1962 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1963 Opts.GNUKeywords);
1964
1965 if (Args.hasArg(OPT_fno_operator_names))
1966 Opts.CXXOperatorNames = 0;
1967
1968 if (Opts.ObjC1) {
1969 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
1970 StringRef value = arg->getValue(Args);
1971 if (Opts.ObjCRuntime.tryParse(value))
1972 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
1973 }
1974
1975 if (Args.hasArg(OPT_fobjc_gc_only))
1976 Opts.setGC(LangOptions::GCOnly);
1977 else if (Args.hasArg(OPT_fobjc_gc))
1978 Opts.setGC(LangOptions::HybridGC);
1979 else if (Args.hasArg(OPT_fobjc_arc)) {
1980 Opts.ObjCAutoRefCount = 1;
1981 if (!Opts.ObjCRuntime.allowsARC())
1982 Diags.Report(diag::err_arc_unsupported_on_runtime);
1983
1984 // Only set ObjCARCWeak if ARC is enabled.
1985 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
1986 Opts.ObjCARCWeak = 1;
1987 else
1988 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak();
1989 }
1990
1991 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
1992 Opts.ObjCInferRelatedResultType = 0;
1993 }
1994
1995 if (Args.hasArg(OPT_fgnu89_inline))
1996 Opts.GNUInline = 1;
1997
1998 if (Args.hasArg(OPT_fapple_kext)) {
1999 if (!Opts.CPlusPlus)
2000 Diags.Report(diag::warn_c_kext);
2001 else
2002 Opts.AppleKext = 1;
2003 }
2004
2005 if (Args.hasArg(OPT_print_ivar_layout))
2006 Opts.ObjCGCBitmapPrint = 1;
2007 if (Args.hasArg(OPT_fno_constant_cfstrings))
2008 Opts.NoConstantCFStrings = 1;
2009
2010 if (Args.hasArg(OPT_faltivec))
2011 Opts.AltiVec = 1;
2012
2013 if (Args.hasArg(OPT_pthread))
2014 Opts.POSIXThreads = 1;
2015
2016 if (Args.hasArg(OPT_fdelayed_template_parsing))
2017 Opts.DelayedTemplateParsing = 1;
2018
2019 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default");
2020 if (Vis == "default")
2021 Opts.setVisibilityMode(DefaultVisibility);
2022 else if (Vis == "hidden")
2023 Opts.setVisibilityMode(HiddenVisibility);
2024 else if (Vis == "protected")
2025 // FIXME: diagnose if target does not support protected visibility
2026 Opts.setVisibilityMode(ProtectedVisibility);
2027 else
2028 Diags.Report(diag::err_drv_invalid_value)
2029 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis;
2030
2031 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
2032 StringRef Val = A->getValue(Args);
2033 if (Val == "fast")
2034 Opts.setFPContractMode(LangOptions::FPC_Fast);
2035 else if (Val == "on")
2036 Opts.setFPContractMode(LangOptions::FPC_On);
2037 else if (Val == "off")
2038 Opts.setFPContractMode(LangOptions::FPC_Off);
2039 else
2040 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2041 }
2042
2043 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
2044 Opts.InlineVisibilityHidden = 1;
2045
2046 if (Args.hasArg(OPT_ftrapv)) {
2047 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
2048 // Set the handler, if one is specified.
2049 Opts.OverflowHandler =
2050 Args.getLastArgValue(OPT_ftrapv_handler);
2051 }
2052 else if (Args.hasArg(OPT_fwrapv))
2053 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
2054
2055 if (Args.hasArg(OPT_trigraphs))
2056 Opts.Trigraphs = 1;
2057
2058 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
2059 OPT_fno_dollars_in_identifiers,
2060 Opts.DollarIdents);
2061 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
2062 Opts.MicrosoftExt
2063 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility);
2064 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility);
2065 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags);
2066 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
2067 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
2068 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
2069 Opts.ConstStrings);
2070 if (Args.hasArg(OPT_fno_lax_vector_conversions))
2071 Opts.LaxVectorConversions = 0;
2072 if (Args.hasArg(OPT_fno_threadsafe_statics))
2073 Opts.ThreadsafeStatics = 0;
2074 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
2075 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
2076 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
2077 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
2078 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
2079
2080 Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
2081 Opts.Blocks = Args.hasArg(OPT_fblocks);
2082 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
2083 Opts.Modules = Args.hasArg(OPT_fmodules);
2084 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
2085 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
2086 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
2087 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
2088 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
2089 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
2090 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
2091 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
2092 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
2093 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
2094 Opts.MathErrno = Args.hasArg(OPT_fmath_errno);
2095 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512,
2096 Diags);
2097 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512,
2098 Diags);
2099 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
2100 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ,
2101 0, Diags);
2102 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
2103 Opts.ObjCConstantStringClass =
2104 Args.getLastArgValue(OPT_fconstant_string_class);
2105 Opts.ObjCDefaultSynthProperties =
2106 Args.hasArg(OPT_fobjc_default_synthesize_properties);
2107 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
2108 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2109 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags);
2110 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags);
2111 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags);
2112 Opts.Static = Args.hasArg(OPT_static_define);
2113 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2114 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2115 || Args.hasArg(OPT_fdump_record_layouts);
2116 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2117 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2118 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2119 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2120 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2121 Opts.MRTD = Args.hasArg(OPT_mrtd);
2122 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2123 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2124 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2125 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2126 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2127 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2128 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer);
2129 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer);
2130 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2131 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name);
2132
2133 // Record whether the __DEPRECATED define was requested.
2134 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
2135 OPT_fno_deprecated_macro,
2136 Opts.Deprecated);
2137
2138 // FIXME: Eliminate this dependency.
2139 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
2140 OptSize = getOptimizationLevelSize(Args, IK, Diags);
2141 Opts.Optimize = Opt != 0;
2142 Opts.OptimizeSize = OptSize != 0;
2143
2144 // This is the __NO_INLINE__ define, which just depends on things like the
2145 // optimization level and -fno-inline, not actually whether the backend has
2146 // inlining enabled.
2147 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline);
2148
2149 Opts.FastMath = Args.hasArg(OPT_ffast_math);
2150 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only);
2151
2152 Opts.EmitMicrosoftInlineAsm = Args.hasArg(OPT_fenable_experimental_ms_inline_asm);
2153
2154 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags);
2155 switch (SSP) {
2156 default:
2157 Diags.Report(diag::err_drv_invalid_value)
2158 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
2159 break;
2160 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
2161 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
2162 case 2: Opts.setStackProtector(LangOptions::SSPReq); break;
2163 }
2164 }
2165
ParsePreprocessorArgs(PreprocessorOptions & Opts,ArgList & Args,FileManager & FileMgr,DiagnosticsEngine & Diags)2166 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
2167 FileManager &FileMgr,
2168 DiagnosticsEngine &Diags) {
2169 using namespace options;
2170 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
2171 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
2172 if (const Arg *A = Args.getLastArg(OPT_token_cache))
2173 Opts.TokenCache = A->getValue(Args);
2174 else
2175 Opts.TokenCache = Opts.ImplicitPTHInclude;
2176 Opts.UsePredefines = !Args.hasArg(OPT_undef);
2177 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
2178 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
2179
2180 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
2181 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl),
2182 ie = Args.filtered_end(); it != ie; ++it) {
2183 const Arg *A = *it;
2184 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args));
2185 }
2186
2187 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
2188 StringRef Value(A->getValue(Args));
2189 size_t Comma = Value.find(',');
2190 unsigned Bytes = 0;
2191 unsigned EndOfLine = 0;
2192
2193 if (Comma == StringRef::npos ||
2194 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
2195 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
2196 Diags.Report(diag::err_drv_preamble_format);
2197 else {
2198 Opts.PrecompiledPreambleBytes.first = Bytes;
2199 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
2200 }
2201 }
2202
2203 // Add macros from the command line.
2204 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
2205 ie = Args.filtered_end(); it != ie; ++it) {
2206 if ((*it)->getOption().matches(OPT_D))
2207 Opts.addMacroDef((*it)->getValue(Args));
2208 else
2209 Opts.addMacroUndef((*it)->getValue(Args));
2210 }
2211
2212 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
2213
2214 // Add the ordered list of -includes.
2215 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch,
2216 OPT_include_pth),
2217 ie = Args.filtered_end(); it != ie; ++it) {
2218 const Arg *A = *it;
2219 // PCH is handled specially, we need to extra the original include path.
2220 if (A->getOption().matches(OPT_include_pch)) {
2221 std::string OriginalFile =
2222 ASTReader::getOriginalSourceFile(A->getValue(Args), FileMgr, Diags);
2223 if (OriginalFile.empty())
2224 continue;
2225
2226 Opts.Includes.push_back(OriginalFile);
2227 } else
2228 Opts.Includes.push_back(A->getValue(Args));
2229 }
2230
2231 for (arg_iterator it = Args.filtered_begin(OPT_chain_include),
2232 ie = Args.filtered_end(); it != ie; ++it) {
2233 const Arg *A = *it;
2234 Opts.ChainedIncludes.push_back(A->getValue(Args));
2235 }
2236
2237 // Include 'altivec.h' if -faltivec option present
2238 if (Args.hasArg(OPT_faltivec))
2239 Opts.Includes.push_back("altivec.h");
2240
2241 for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
2242 ie = Args.filtered_end(); it != ie; ++it) {
2243 const Arg *A = *it;
2244 std::pair<StringRef,StringRef> Split =
2245 StringRef(A->getValue(Args)).split(';');
2246
2247 if (Split.second.empty()) {
2248 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
2249 continue;
2250 }
2251
2252 Opts.addRemappedFile(Split.first, Split.second);
2253 }
2254
2255 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
2256 StringRef Name = A->getValue(Args);
2257 unsigned Library = llvm::StringSwitch<unsigned>(Name)
2258 .Case("libc++", ARCXX_libcxx)
2259 .Case("libstdc++", ARCXX_libstdcxx)
2260 .Case("none", ARCXX_nolib)
2261 .Default(~0U);
2262 if (Library == ~0U)
2263 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2264 else
2265 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
2266 }
2267 }
2268
ParsePreprocessorOutputArgs(PreprocessorOutputOptions & Opts,ArgList & Args)2269 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
2270 ArgList &Args) {
2271 using namespace options;
2272 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2273 Opts.ShowComments = Args.hasArg(OPT_C);
2274 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2275 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2276 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2277 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2278 }
2279
ParseTargetArgs(TargetOptions & Opts,ArgList & Args)2280 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
2281 using namespace options;
2282 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2283 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi);
2284 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2285 Opts.Features = Args.getAllArgValues(OPT_target_feature);
2286 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2287 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple));
2288
2289 // Use the default target triple if unspecified.
2290 if (Opts.Triple.empty())
2291 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2292 }
2293
2294 //
2295
CreateFromArgs(CompilerInvocation & Res,const char * const * ArgBegin,const char * const * ArgEnd,DiagnosticsEngine & Diags)2296 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2297 const char *const *ArgBegin,
2298 const char *const *ArgEnd,
2299 DiagnosticsEngine &Diags) {
2300 bool Success = true;
2301
2302 // Parse the arguments.
2303 OwningPtr<OptTable> Opts(createDriverOptTable());
2304 unsigned MissingArgIndex, MissingArgCount;
2305 OwningPtr<InputArgList> Args(
2306 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount));
2307
2308 // Check for missing argument error.
2309 if (MissingArgCount) {
2310 Diags.Report(diag::err_drv_missing_argument)
2311 << Args->getArgString(MissingArgIndex) << MissingArgCount;
2312 Success = false;
2313 }
2314
2315 // Issue errors on unknown arguments.
2316 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
2317 ie = Args->filtered_end(); it != ie; ++it) {
2318 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args);
2319 Success = false;
2320 }
2321
2322 // Issue errors on arguments that are not valid for CC1.
2323 for (ArgList::iterator I = Args->begin(), E = Args->end();
2324 I != E; ++I) {
2325 if (!(*I)->getOption().isCC1Option()) {
2326 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args);
2327 Success = false;
2328 }
2329 }
2330
2331 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success;
2332 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success;
2333 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
2334 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags)
2335 && Success;
2336 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args);
2337 // FIXME: We shouldn't have to pass the DashX option around here
2338 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
2339 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags)
2340 && Success;
2341 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
2342 if (DashX != IK_AST && DashX != IK_LLVM_IR) {
2343 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags);
2344 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
2345 Res.getLangOpts()->ObjCExceptions = 1;
2346 }
2347 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of
2348 // PCH file and find the original header name. Remove the need to do that in
2349 // ParsePreprocessorArgs and remove the FileManager
2350 // parameters from the function and the "FileManager.h" #include.
2351 FileManager FileMgr(Res.getFileSystemOpts());
2352 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags);
2353 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args);
2354 ParseTargetArgs(Res.getTargetOpts(), *Args);
2355
2356 return Success;
2357 }
2358
2359 namespace {
2360
2361 class ModuleSignature {
2362 llvm::SmallVector<uint64_t, 16> Data;
2363 unsigned CurBit;
2364 uint64_t CurValue;
2365
2366 public:
ModuleSignature()2367 ModuleSignature() : CurBit(0), CurValue(0) { }
2368
2369 void add(uint64_t Value, unsigned Bits);
2370 void add(StringRef Value);
2371 void flush();
2372
2373 llvm::APInt getAsInteger() const;
2374 };
2375 }
2376
add(uint64_t Value,unsigned int NumBits)2377 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) {
2378 CurValue |= Value << CurBit;
2379 if (CurBit + NumBits < 64) {
2380 CurBit += NumBits;
2381 return;
2382 }
2383
2384 // Add the current word.
2385 Data.push_back(CurValue);
2386
2387 if (CurBit)
2388 CurValue = Value >> (64-CurBit);
2389 else
2390 CurValue = 0;
2391 CurBit = (CurBit+NumBits) & 63;
2392 }
2393
flush()2394 void ModuleSignature::flush() {
2395 if (CurBit == 0)
2396 return;
2397
2398 Data.push_back(CurValue);
2399 CurBit = 0;
2400 CurValue = 0;
2401 }
2402
add(StringRef Value)2403 void ModuleSignature::add(StringRef Value) {
2404 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I)
2405 add(*I, 8);
2406 }
2407
getAsInteger() const2408 llvm::APInt ModuleSignature::getAsInteger() const {
2409 return llvm::APInt(Data.size() * 64, Data);
2410 }
2411
getModuleHash() const2412 std::string CompilerInvocation::getModuleHash() const {
2413 ModuleSignature Signature;
2414
2415 // Start the signature with the compiler version.
2416 // FIXME: The full version string can be quite long. Omit it from the
2417 // module hash for now to avoid failures where the path name becomes too
2418 // long. An MD5 or similar checksum would work well here.
2419 // Signature.add(getClangFullRepositoryVersion());
2420
2421 // Extend the signature with the language options
2422 #define LANGOPT(Name, Bits, Default, Description) \
2423 Signature.add(LangOpts->Name, Bits);
2424 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
2425 Signature.add(static_cast<unsigned>(LangOpts->get##Name()), Bits);
2426 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
2427 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
2428 #include "clang/Basic/LangOptions.def"
2429
2430 // Extend the signature with the target triple
2431 llvm::Triple T(TargetOpts.Triple);
2432 Signature.add((unsigned)T.getArch(), 5);
2433 Signature.add((unsigned)T.getVendor(), 4);
2434 Signature.add((unsigned)T.getOS(), 5);
2435 Signature.add((unsigned)T.getEnvironment(), 4);
2436
2437 // Extend the signature with preprocessor options.
2438 Signature.add(getPreprocessorOpts().UsePredefines, 1);
2439 Signature.add(getPreprocessorOpts().DetailedRecord, 1);
2440
2441 // Hash the preprocessor defines.
2442 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines.
2443 std::vector<StringRef> MacroDefs;
2444 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
2445 I = getPreprocessorOpts().Macros.begin(),
2446 IEnd = getPreprocessorOpts().Macros.end();
2447 I != IEnd; ++I) {
2448 if (!I->second)
2449 MacroDefs.push_back(I->first);
2450 }
2451 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end());
2452
2453 unsigned PPHashResult = 0;
2454 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I)
2455 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult);
2456 Signature.add(PPHashResult, 32);
2457
2458 // We've generated the signature. Treat it as one large APInt that we'll
2459 // encode in base-36 and return.
2460 Signature.flush();
2461 return Signature.getAsInteger().toString(36, /*Signed=*/false);
2462 }
2463