CompilerInvocation.cpp revision 4bf99130178f92af4eb958837bff9d6266f06227 
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/Driver/Arg.h"
14#include "clang/Driver/ArgList.h"
15#include "clang/Driver/CC1Options.h"
16#include "clang/Driver/DriverDiagnostic.h"
17#include "clang/Driver/OptTable.h"
18#include "clang/Driver/Option.h"
19#include "clang/Frontend/CompilerInvocation.h"
20#include "clang/Frontend/LangStandard.h"
21#include "clang/Frontend/PCHReader.h"
22#include "llvm/ADT/OwningPtr.h"
23#include "llvm/ADT/SmallVector.h"
24#include "llvm/ADT/StringExtras.h"
25#include "llvm/ADT/StringSwitch.h"
26#include "llvm/Support/ErrorHandling.h"
27#include "llvm/System/Host.h"
28#include "llvm/System/Path.h"
29using namespace clang;
30
31static const char *getAnalysisName(Analyses Kind) {
32  switch (Kind) {
33  default:
34    llvm_unreachable("Unknown analysis kind!");
35#define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE)\
36  case NAME: return "-" CMDFLAG;
37#include "clang/Frontend/Analyses.def"
38  }
39}
40
41static const char *getAnalysisStoreName(AnalysisStores Kind) {
42  switch (Kind) {
43  default:
44    llvm_unreachable("Unknown analysis store!");
45#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
46  case NAME##Model: return CMDFLAG;
47#include "clang/Frontend/Analyses.def"
48  }
49}
50
51static const char *getAnalysisConstraintName(AnalysisConstraints Kind) {
52  switch (Kind) {
53  default:
54    llvm_unreachable("Unknown analysis constraints!");
55#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
56  case NAME##Model: return CMDFLAG;
57#include "clang/Frontend/Analyses.def"
58  }
59}
60
61static const char *getAnalysisDiagClientName(AnalysisDiagClients Kind) {
62  switch (Kind) {
63  default:
64    llvm_unreachable("Unknown analysis client!");
65#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE) \
66  case PD_##NAME: return CMDFLAG;
67#include "clang/Frontend/Analyses.def"
68  }
69}
70
71//===----------------------------------------------------------------------===//
72// Serialization (to args)
73//===----------------------------------------------------------------------===//
74
75static void AnalyzerOptsToArgs(const AnalyzerOptions &Opts,
76                               std::vector<std::string> &Res) {
77  for (unsigned i = 0, e = Opts.AnalysisList.size(); i != e; ++i)
78    Res.push_back(getAnalysisName(Opts.AnalysisList[i]));
79  if (Opts.AnalysisStoreOpt != BasicStoreModel) {
80    Res.push_back("-analyzer-store");
81    Res.push_back(getAnalysisStoreName(Opts.AnalysisStoreOpt));
82  }
83  if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) {
84    Res.push_back("-analyzer-constraints");
85    Res.push_back(getAnalysisConstraintName(Opts.AnalysisConstraintsOpt));
86  }
87  if (Opts.AnalysisDiagOpt != PD_HTML) {
88    Res.push_back("-analyzer-output");
89    Res.push_back(getAnalysisDiagClientName(Opts.AnalysisDiagOpt));
90  }
91  if (!Opts.AnalyzeSpecificFunction.empty()) {
92    Res.push_back("-analyze-function");
93    Res.push_back(Opts.AnalyzeSpecificFunction);
94  }
95  if (Opts.AnalyzeAll)
96    Res.push_back("-analyzer-opt-analyze-headers");
97  if (Opts.AnalyzerDisplayProgress)
98    Res.push_back("-analyzer-display-progress");
99  if (Opts.AnalyzeNestedBlocks)
100    Res.push_back("-analyzer-opt-analyze-nested-blocks");
101  if (Opts.EagerlyAssume)
102    Res.push_back("-analyzer-eagerly-assume");
103  if (!Opts.PurgeDead)
104    Res.push_back("-analyzer-no-purge-dead");
105  if (Opts.TrimGraph)
106    Res.push_back("-trim-egraph");
107  if (Opts.VisualizeEGDot)
108    Res.push_back("-analyzer-viz-egraph-graphviz");
109  if (Opts.VisualizeEGDot)
110    Res.push_back("-analyzer-viz-egraph-ubigraph");
111  if (Opts.EnableExperimentalChecks)
112    Res.push_back("-analyzer-experimental-checks");
113  if (Opts.EnableExperimentalInternalChecks)
114    Res.push_back("-analyzer-experimental-internal-checks");
115}
116
117static void CodeGenOptsToArgs(const CodeGenOptions &Opts,
118                              std::vector<std::string> &Res) {
119  if (Opts.DebugInfo)
120    Res.push_back("-g");
121  if (Opts.DisableLLVMOpts)
122    Res.push_back("-disable-llvm-optzns");
123  if (Opts.DisableRedZone)
124    Res.push_back("-disable-red-zone");
125  if (!Opts.DwarfDebugFlags.empty()) {
126    Res.push_back("-dwarf-debug-flags");
127    Res.push_back(Opts.DwarfDebugFlags);
128  }
129  if (!Opts.MergeAllConstants)
130    Res.push_back("-fno-merge-all-constants");
131  if (Opts.NoCommon)
132    Res.push_back("-fno-common");
133  if (Opts.NoImplicitFloat)
134    Res.push_back("-no-implicit-float");
135  if (Opts.OptimizeSize) {
136    assert(Opts.OptimizationLevel == 2 && "Invalid options!");
137    Res.push_back("-Os");
138  } else if (Opts.OptimizationLevel != 0)
139    Res.push_back("-O" + llvm::utostr(Opts.OptimizationLevel));
140  if (!Opts.MainFileName.empty()) {
141    Res.push_back("-main-file-name");
142    Res.push_back(Opts.MainFileName);
143  }
144  // SimplifyLibCalls is only derived.
145  // TimePasses is only derived.
146  // UnitAtATime is unused.
147  // UnrollLoops is only derived.
148  // Inlining is only derived.
149
150  if (Opts.DataSections)
151    Res.push_back("-fdata-sections");
152  if (Opts.FunctionSections)
153    Res.push_back("-ffunction-sections");
154  if (Opts.AsmVerbose)
155    Res.push_back("-masm-verbose");
156  if (!Opts.CodeModel.empty()) {
157    Res.push_back("-mcode-model");
158    Res.push_back(Opts.CodeModel);
159  }
160  if (!Opts.CXAAtExit)
161    Res.push_back("-fno-use-cxa-atexit");
162  if (Opts.CXXCtorDtorAliases)
163    Res.push_back("-mconstructor-aliases");
164  if (!Opts.DebugPass.empty()) {
165    Res.push_back("-mdebug-pass");
166    Res.push_back(Opts.DebugPass);
167  }
168  if (Opts.DisableFPElim)
169    Res.push_back("-mdisable-fp-elim");
170  if (!Opts.FloatABI.empty()) {
171    Res.push_back("-mfloat-abi");
172    Res.push_back(Opts.FloatABI);
173  }
174  if (!Opts.LimitFloatPrecision.empty()) {
175    Res.push_back("-mlimit-float-precision");
176    Res.push_back(Opts.LimitFloatPrecision);
177  }
178  if (Opts.NoZeroInitializedInBSS)
179    Res.push_back("-mno-zero-initialized-bss");
180  switch (Opts.getObjCDispatchMethod()) {
181  case CodeGenOptions::Legacy:
182    break;
183  case CodeGenOptions::Mixed:
184    Res.push_back("-fobjc-dispatch-method=mixed");
185    break;
186  case CodeGenOptions::NonLegacy:
187    Res.push_back("-fobjc-dispatch-method=non-legacy");
188    break;
189  }
190  if (Opts.RelaxAll)
191    Res.push_back("-mrelax-all");
192  if (Opts.SoftFloat)
193    Res.push_back("-msoft-float");
194  if (Opts.UnwindTables)
195    Res.push_back("-munwind-tables");
196  if (Opts.RelocationModel != "pic") {
197    Res.push_back("-mrelocation-model");
198    Res.push_back(Opts.RelocationModel);
199  }
200  if (!Opts.VerifyModule)
201    Res.push_back("-disable-llvm-verifier");
202}
203
204static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts,
205                                       std::vector<std::string> &Res) {
206  if (Opts.IncludeSystemHeaders)
207    Res.push_back("-sys-header-deps");
208  if (Opts.UsePhonyTargets)
209    Res.push_back("-MP");
210  if (!Opts.OutputFile.empty()) {
211    Res.push_back("-dependency-file");
212    Res.push_back(Opts.OutputFile);
213  }
214  for (unsigned i = 0, e = Opts.Targets.size(); i != e; ++i) {
215    Res.push_back("-MT");
216    Res.push_back(Opts.Targets[i]);
217  }
218}
219
220static void DiagnosticOptsToArgs(const DiagnosticOptions &Opts,
221                                 std::vector<std::string> &Res) {
222  if (Opts.IgnoreWarnings)
223    Res.push_back("-w");
224  if (Opts.NoRewriteMacros)
225    Res.push_back("-Wno-rewrite-macros");
226  if (Opts.Pedantic)
227    Res.push_back("-pedantic");
228  if (Opts.PedanticErrors)
229    Res.push_back("-pedantic-errors");
230  if (!Opts.ShowColumn)
231    Res.push_back("-fno-show-column");
232  if (!Opts.ShowLocation)
233    Res.push_back("-fno-show-source-location");
234  if (!Opts.ShowCarets)
235    Res.push_back("-fno-caret-diagnostics");
236  if (!Opts.ShowFixits)
237    Res.push_back("-fno-diagnostics-fixit-info");
238  if (Opts.ShowSourceRanges)
239    Res.push_back("-fdiagnostics-print-source-range-info");
240  if (Opts.ShowColors)
241    Res.push_back("-fcolor-diagnostics");
242  if (Opts.VerifyDiagnostics)
243    Res.push_back("-verify");
244  if (Opts.BinaryOutput)
245    Res.push_back("-fdiagnostics-binary");
246  if (Opts.ShowOptionNames)
247    Res.push_back("-fdiagnostics-show-option");
248  if (Opts.ShowCategories == 1)
249    Res.push_back("-fdiagnostics-show-category=id");
250  else if (Opts.ShowCategories == 2)
251    Res.push_back("-fdiagnostics-show-category=name");
252  if (Opts.ErrorLimit) {
253    Res.push_back("-ferror-limit");
254    Res.push_back(llvm::utostr(Opts.ErrorLimit));
255  }
256  if (Opts.MacroBacktraceLimit
257                        != DiagnosticOptions::DefaultMacroBacktraceLimit) {
258    Res.push_back("-fmacro-backtrace-limit");
259    Res.push_back(llvm::utostr(Opts.MacroBacktraceLimit));
260  }
261  if (Opts.TemplateBacktraceLimit
262                        != DiagnosticOptions::DefaultTemplateBacktraceLimit) {
263    Res.push_back("-ftemplate-backtrace-limit");
264    Res.push_back(llvm::utostr(Opts.TemplateBacktraceLimit));
265  }
266
267  if (Opts.TabStop != DiagnosticOptions::DefaultTabStop) {
268    Res.push_back("-ftabstop");
269    Res.push_back(llvm::utostr(Opts.TabStop));
270  }
271  if (Opts.MessageLength) {
272    Res.push_back("-fmessage-length");
273    Res.push_back(llvm::utostr(Opts.MessageLength));
274  }
275  if (!Opts.DumpBuildInformation.empty()) {
276    Res.push_back("-dump-build-information");
277    Res.push_back(Opts.DumpBuildInformation);
278  }
279  for (unsigned i = 0, e = Opts.Warnings.size(); i != e; ++i)
280    Res.push_back("-W" + Opts.Warnings[i]);
281}
282
283static const char *getInputKindName(InputKind Kind) {
284  switch (Kind) {
285  case IK_None:              break;
286  case IK_AST:               return "ast";
287  case IK_Asm:               return "assembler-with-cpp";
288  case IK_C:                 return "c";
289  case IK_CXX:               return "c++";
290  case IK_LLVM_IR:           return "ir";
291  case IK_ObjC:              return "objective-c";
292  case IK_ObjCXX:            return "objective-c++";
293  case IK_OpenCL:            return "cl";
294  case IK_PreprocessedC:     return "cpp-output";
295  case IK_PreprocessedCXX:   return "c++-cpp-output";
296  case IK_PreprocessedObjC:  return "objective-c-cpp-output";
297  case IK_PreprocessedObjCXX:return "objective-c++-cpp-output";
298  }
299
300  llvm_unreachable("Unexpected language kind!");
301  return 0;
302}
303
304static const char *getActionName(frontend::ActionKind Kind) {
305  switch (Kind) {
306  case frontend::PluginAction:
307  case frontend::InheritanceView:
308    llvm_unreachable("Invalid kind!");
309
310  case frontend::ASTDump:                return "-ast-dump";
311  case frontend::ASTPrint:               return "-ast-print";
312  case frontend::ASTPrintXML:            return "-ast-print-xml";
313  case frontend::ASTView:                return "-ast-view";
314  case frontend::BoostCon:               return "-boostcon";
315  case frontend::DumpRawTokens:          return "-dump-raw-tokens";
316  case frontend::DumpTokens:             return "-dump-tokens";
317  case frontend::EmitAssembly:           return "-S";
318  case frontend::EmitBC:                 return "-emit-llvm-bc";
319  case frontend::EmitHTML:               return "-emit-html";
320  case frontend::EmitLLVM:               return "-emit-llvm";
321  case frontend::EmitLLVMOnly:           return "-emit-llvm-only";
322  case frontend::EmitCodeGenOnly:        return "-emit-codegen-only";
323  case frontend::EmitObj:                return "-emit-obj";
324  case frontend::FixIt:                  return "-fixit";
325  case frontend::GeneratePCH:            return "-emit-pch";
326  case frontend::GeneratePTH:            return "-emit-pth";
327  case frontend::InitOnly:               return "-init-only";
328  case frontend::ParseNoop:              return "-parse-noop";
329  case frontend::ParsePrintCallbacks:    return "-parse-print-callbacks";
330  case frontend::ParseSyntaxOnly:        return "-fsyntax-only";
331  case frontend::PrintDeclContext:       return "-print-decl-contexts";
332  case frontend::PrintPreprocessedInput: return "-E";
333  case frontend::RewriteMacros:          return "-rewrite-macros";
334  case frontend::RewriteObjC:            return "-rewrite-objc";
335  case frontend::RewriteTest:            return "-rewrite-test";
336  case frontend::RunAnalysis:            return "-analyze";
337  case frontend::RunPreprocessorOnly:    return "-Eonly";
338  }
339
340  llvm_unreachable("Unexpected language kind!");
341  return 0;
342}
343
344static void FrontendOptsToArgs(const FrontendOptions &Opts,
345                               std::vector<std::string> &Res) {
346  if (!Opts.DebugCodeCompletionPrinter)
347    Res.push_back("-no-code-completion-debug-printer");
348  if (Opts.DisableFree)
349    Res.push_back("-disable-free");
350  if (Opts.RelocatablePCH)
351    Res.push_back("-relocatable-pch");
352  if (Opts.ShowHelp)
353    Res.push_back("-help");
354  if (Opts.ShowMacrosInCodeCompletion)
355    Res.push_back("-code-completion-macros");
356  if (Opts.ShowCodePatternsInCodeCompletion)
357    Res.push_back("-code-completion-patterns");
358  if (Opts.ShowStats)
359    Res.push_back("-print-stats");
360  if (Opts.ShowTimers)
361    Res.push_back("-ftime-report");
362  if (Opts.ShowVersion)
363    Res.push_back("-version");
364
365  bool NeedLang = false;
366  for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i)
367    if (FrontendOptions::getInputKindForExtension(Opts.Inputs[i].second) !=
368        Opts.Inputs[i].first)
369      NeedLang = true;
370  if (NeedLang) {
371    Res.push_back("-x");
372    Res.push_back(getInputKindName(Opts.Inputs[0].first));
373  }
374  for (unsigned i = 0, e = Opts.Inputs.size(); i != e; ++i) {
375    assert((!NeedLang || Opts.Inputs[i].first == Opts.Inputs[0].first) &&
376           "Unable to represent this input vector!");
377    Res.push_back(Opts.Inputs[i].second);
378  }
379
380  if (!Opts.OutputFile.empty()) {
381    Res.push_back("-o");
382    Res.push_back(Opts.OutputFile);
383  }
384  if (!Opts.ViewClassInheritance.empty()) {
385    Res.push_back("-cxx-inheritance-view");
386    Res.push_back(Opts.ViewClassInheritance);
387  }
388  if (!Opts.CodeCompletionAt.FileName.empty()) {
389    Res.push_back("-code-completion-at");
390    Res.push_back(Opts.CodeCompletionAt.FileName + ":" +
391                  llvm::utostr(Opts.CodeCompletionAt.Line) + ":" +
392                  llvm::utostr(Opts.CodeCompletionAt.Column));
393  }
394  if (Opts.ProgramAction != frontend::InheritanceView &&
395      Opts.ProgramAction != frontend::PluginAction)
396    Res.push_back(getActionName(Opts.ProgramAction));
397  if (!Opts.ActionName.empty()) {
398    Res.push_back("-plugin");
399    Res.push_back(Opts.ActionName);
400  }
401  for (unsigned i = 0, e = Opts.Plugins.size(); i != e; ++i) {
402    Res.push_back("-load");
403    Res.push_back(Opts.Plugins[i]);
404  }
405  for (unsigned i = 0, e = Opts.ASTMergeFiles.size(); i != e; ++i) {
406    Res.push_back("-ast-merge");
407    Res.push_back(Opts.ASTMergeFiles[i]);
408  }
409  for (unsigned i = 0, e = Opts.LLVMArgs.size(); i != e; ++i) {
410    Res.push_back("-mllvm");
411    Res.push_back(Opts.LLVMArgs[i]);
412  }
413}
414
415static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts,
416                                   std::vector<std::string> &Res) {
417  if (Opts.Sysroot != "/") {
418    Res.push_back("-isysroot");
419    Res.push_back(Opts.Sysroot);
420  }
421
422  /// User specified include entries.
423  for (unsigned i = 0, e = Opts.UserEntries.size(); i != e; ++i) {
424    const HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
425    if (E.IsFramework && (E.Group != frontend::Angled || !E.IsUserSupplied))
426      llvm::report_fatal_error("Invalid option set!");
427    if (E.IsUserSupplied) {
428      if (E.Group == frontend::After) {
429        Res.push_back("-idirafter");
430      } else if (E.Group == frontend::Quoted) {
431        Res.push_back("-iquote");
432      } else if (E.Group == frontend::System) {
433        Res.push_back("-isystem");
434      } else {
435        assert(E.Group == frontend::Angled && "Invalid group!");
436        Res.push_back(E.IsFramework ? "-F" : "-I");
437      }
438    } else {
439      if (E.Group != frontend::Angled && E.Group != frontend::System)
440        llvm::report_fatal_error("Invalid option set!");
441      Res.push_back(E.Group == frontend::Angled ? "-iwithprefixbefore" :
442                    "-iwithprefix");
443    }
444    Res.push_back(E.Path);
445  }
446
447  if (!Opts.EnvIncPath.empty()) {
448    // FIXME: Provide an option for this, and move env detection to driver.
449    llvm::report_fatal_error("Not yet implemented!");
450  }
451  if (!Opts.CEnvIncPath.empty()) {
452    // FIXME: Provide an option for this, and move env detection to driver.
453    llvm::report_fatal_error("Not yet implemented!");
454  }
455  if (!Opts.ObjCEnvIncPath.empty()) {
456    // FIXME: Provide an option for this, and move env detection to driver.
457    llvm::report_fatal_error("Not yet implemented!");
458  }
459  if (!Opts.CXXEnvIncPath.empty()) {
460    // FIXME: Provide an option for this, and move env detection to driver.
461    llvm::report_fatal_error("Not yet implemented!");
462  }
463  if (!Opts.ObjCXXEnvIncPath.empty()) {
464    // FIXME: Provide an option for this, and move env detection to driver.
465    llvm::report_fatal_error("Not yet implemented!");
466  }
467  if (!Opts.ResourceDir.empty()) {
468    Res.push_back("-resource-dir");
469    Res.push_back(Opts.ResourceDir);
470  }
471  if (!Opts.UseStandardIncludes)
472    Res.push_back("-nostdinc");
473  if (!Opts.UseStandardCXXIncludes)
474    Res.push_back("-nostdinc++");
475  if (Opts.Verbose)
476    Res.push_back("-v");
477}
478
479static void LangOptsToArgs(const LangOptions &Opts,
480                           std::vector<std::string> &Res) {
481  LangOptions DefaultLangOpts;
482
483  // FIXME: Need to set -std to get all the implicit options.
484
485  // FIXME: We want to only pass options relative to the defaults, which
486  // requires constructing a target. :(
487  //
488  // It would be better to push the all target specific choices into the driver,
489  // so that everything below that was more uniform.
490
491  if (Opts.Trigraphs)
492    Res.push_back("-trigraphs");
493  // Implicit based on the input kind:
494  //   AsmPreprocessor, CPlusPlus, ObjC1, ObjC2, OpenCL
495  // Implicit based on the input language standard:
496  //   BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode
497  if (Opts.DollarIdents)
498    Res.push_back("-fdollars-in-identifiers");
499  if (Opts.GNUMode && !Opts.GNUKeywords)
500    Res.push_back("-fno-gnu-keywords");
501  if (!Opts.GNUMode && Opts.GNUKeywords)
502    Res.push_back("-fgnu-keywords");
503  if (Opts.Microsoft)
504    Res.push_back("-fms-extensions");
505  if (Opts.ObjCNonFragileABI)
506    Res.push_back("-fobjc-nonfragile-abi");
507  if (Opts.ObjCNonFragileABI2)
508    Res.push_back("-fobjc-nonfragile-abi2");
509  // NoInline is implicit.
510  if (!Opts.CXXOperatorNames)
511    Res.push_back("-fno-operator-names");
512  if (Opts.PascalStrings)
513    Res.push_back("-fpascal-strings");
514  if (Opts.CatchUndefined)
515    Res.push_back("-fcatch-undefined-behavior");
516  if (Opts.WritableStrings)
517    Res.push_back("-fwritable-strings");
518  if (Opts.ConstStrings)
519    Res.push_back("-Wwrite-strings");
520  if (!Opts.LaxVectorConversions)
521    Res.push_back("-fno-lax-vector-conversions");
522  if (Opts.AltiVec)
523    Res.push_back("-faltivec");
524  if (Opts.Exceptions)
525    Res.push_back("-fexceptions");
526  if (Opts.SjLjExceptions)
527    Res.push_back("-fsjlj-exceptions");
528  if (!Opts.RTTI)
529    Res.push_back("-fno-rtti");
530  if (!Opts.NeXTRuntime)
531    Res.push_back("-fgnu-runtime");
532  if (Opts.Freestanding)
533    Res.push_back("-ffreestanding");
534  if (Opts.NoBuiltin)
535    Res.push_back("-fno-builtin");
536  if (!Opts.AssumeSaneOperatorNew)
537    Res.push_back("-fno-assume-sane-operator-new");
538  if (!Opts.ThreadsafeStatics)
539    Res.push_back("-fno-threadsafe-statics");
540  if (Opts.POSIXThreads)
541    Res.push_back("-pthread");
542  if (Opts.Blocks)
543    Res.push_back("-fblocks");
544  if (Opts.EmitAllDecls)
545    Res.push_back("-femit-all-decls");
546  if (Opts.MathErrno)
547    Res.push_back("-fmath-errno");
548  if (Opts.OverflowChecking)
549    Res.push_back("-ftrapv");
550  if (Opts.HeinousExtensions)
551    Res.push_back("-fheinous-gnu-extensions");
552  // Optimize is implicit.
553  // OptimizeSize is implicit.
554  if (Opts.Static)
555    Res.push_back("-static-define");
556  if (Opts.DumpRecordLayouts)
557    Res.push_back("-fdump-record-layouts");
558  if (Opts.DumpVTableLayouts)
559    Res.push_back("-fdump-vtable-layouts");
560  if (Opts.NoBitFieldTypeAlign)
561    Res.push_back("-fno-bitfield-type-alignment");
562  if (Opts.SjLjExceptions)
563    Res.push_back("-fsjlj-exceptions");
564  if (Opts.PICLevel) {
565    Res.push_back("-pic-level");
566    Res.push_back(llvm::utostr(Opts.PICLevel));
567  }
568  if (Opts.ObjCGCBitmapPrint)
569    Res.push_back("-print-ivar-layout");
570  if (Opts.NoConstantCFStrings)
571    Res.push_back("-fno-constant-cfstrings");
572  if (!Opts.AccessControl)
573    Res.push_back("-fno-access-control");
574  if (!Opts.CharIsSigned)
575    Res.push_back("-fno-signed-char");
576  if (Opts.ShortWChar)
577    Res.push_back("-fshort-wchar");
578  if (!Opts.ElideConstructors)
579    Res.push_back("-fno-elide-constructors");
580  if (Opts.getGCMode() != LangOptions::NonGC) {
581    if (Opts.getGCMode() == LangOptions::HybridGC) {
582      Res.push_back("-fobjc-gc");
583    } else {
584      assert(Opts.getGCMode() == LangOptions::GCOnly && "Invalid GC mode!");
585      Res.push_back("-fobjc-gc-only");
586    }
587  }
588  if (Opts.getVisibilityMode() != LangOptions::Default) {
589    Res.push_back("-fvisibility");
590    if (Opts.getVisibilityMode() == LangOptions::Hidden) {
591      Res.push_back("hidden");
592    } else {
593      assert(Opts.getVisibilityMode() == LangOptions::Protected &&
594             "Invalid visibility!");
595      Res.push_back("protected");
596    }
597  }
598  if (Opts.getStackProtectorMode() != 0) {
599    Res.push_back("-stack-protector");
600    Res.push_back(llvm::utostr(Opts.getStackProtectorMode()));
601  }
602  if (Opts.InstantiationDepth != DefaultLangOpts.InstantiationDepth) {
603    Res.push_back("-ftemplate-depth");
604    Res.push_back(llvm::utostr(Opts.InstantiationDepth));
605  }
606  if (!Opts.ObjCConstantStringClass.empty()) {
607    Res.push_back("-fconstant-string-class");
608    Res.push_back(Opts.ObjCConstantStringClass);
609  }
610}
611
612static void PreprocessorOptsToArgs(const PreprocessorOptions &Opts,
613                                   std::vector<std::string> &Res) {
614  for (unsigned i = 0, e = Opts.Macros.size(); i != e; ++i)
615    Res.push_back(std::string(Opts.Macros[i].second ? "-U" : "-D") +
616                  Opts.Macros[i].first);
617  for (unsigned i = 0, e = Opts.Includes.size(); i != e; ++i) {
618    // FIXME: We need to avoid reincluding the implicit PCH and PTH includes.
619    Res.push_back("-include");
620    Res.push_back(Opts.Includes[i]);
621  }
622  for (unsigned i = 0, e = Opts.MacroIncludes.size(); i != e; ++i) {
623    Res.push_back("-imacros");
624    Res.push_back(Opts.MacroIncludes[i]);
625  }
626  if (!Opts.UsePredefines)
627    Res.push_back("-undef");
628  if (Opts.DetailedRecord)
629    Res.push_back("-detailed-preprocessing-record");
630  if (!Opts.ImplicitPCHInclude.empty()) {
631    Res.push_back("-include-pch");
632    Res.push_back(Opts.ImplicitPCHInclude);
633  }
634  if (!Opts.ImplicitPTHInclude.empty()) {
635    Res.push_back("-include-pth");
636    Res.push_back(Opts.ImplicitPTHInclude);
637  }
638  if (!Opts.TokenCache.empty()) {
639    if (Opts.ImplicitPTHInclude.empty()) {
640      Res.push_back("-token-cache");
641      Res.push_back(Opts.TokenCache);
642    } else
643      assert(Opts.ImplicitPTHInclude == Opts.TokenCache &&
644             "Unsupported option combination!");
645  }
646  for (unsigned i = 0, e = Opts.RemappedFiles.size(); i != e; ++i) {
647    Res.push_back("-remap-file");
648    Res.push_back(Opts.RemappedFiles[i].first + ";" +
649                  Opts.RemappedFiles[i].second);
650  }
651}
652
653static void PreprocessorOutputOptsToArgs(const PreprocessorOutputOptions &Opts,
654                                         std::vector<std::string> &Res) {
655  if (!Opts.ShowCPP && !Opts.ShowMacros)
656    llvm::report_fatal_error("Invalid option combination!");
657
658  if (Opts.ShowCPP && Opts.ShowMacros)
659    Res.push_back("-dD");
660  else if (!Opts.ShowCPP && Opts.ShowMacros)
661    Res.push_back("-dM");
662
663  if (!Opts.ShowLineMarkers)
664    Res.push_back("-P");
665  if (Opts.ShowComments)
666    Res.push_back("-C");
667  if (Opts.ShowMacroComments)
668    Res.push_back("-CC");
669}
670
671static void TargetOptsToArgs(const TargetOptions &Opts,
672                             std::vector<std::string> &Res) {
673  Res.push_back("-triple");
674  Res.push_back(Opts.Triple);
675  if (!Opts.CPU.empty()) {
676    Res.push_back("-target-cpu");
677    Res.push_back(Opts.CPU);
678  }
679  if (!Opts.ABI.empty()) {
680    Res.push_back("-target-abi");
681    Res.push_back(Opts.ABI);
682  }
683  Res.push_back("-cxx-abi");
684  Res.push_back(Opts.CXXABI);
685  for (unsigned i = 0, e = Opts.Features.size(); i != e; ++i) {
686    Res.push_back("-target-feature");
687    Res.push_back(Opts.Features[i]);
688  }
689}
690
691void CompilerInvocation::toArgs(std::vector<std::string> &Res) {
692  AnalyzerOptsToArgs(getAnalyzerOpts(), Res);
693  CodeGenOptsToArgs(getCodeGenOpts(), Res);
694  DependencyOutputOptsToArgs(getDependencyOutputOpts(), Res);
695  DiagnosticOptsToArgs(getDiagnosticOpts(), Res);
696  FrontendOptsToArgs(getFrontendOpts(), Res);
697  HeaderSearchOptsToArgs(getHeaderSearchOpts(), Res);
698  LangOptsToArgs(getLangOpts(), Res);
699  PreprocessorOptsToArgs(getPreprocessorOpts(), Res);
700  PreprocessorOutputOptsToArgs(getPreprocessorOutputOpts(), Res);
701  TargetOptsToArgs(getTargetOpts(), Res);
702}
703
704//===----------------------------------------------------------------------===//
705// Deserialization (to args)
706//===----------------------------------------------------------------------===//
707
708using namespace clang::driver;
709using namespace clang::driver::cc1options;
710
711//
712
713static void ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
714                              Diagnostic &Diags) {
715  using namespace cc1options;
716
717  Opts.AnalysisList.clear();
718#define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE) \
719  if (Args.hasArg(OPT_analysis_##NAME)) Opts.AnalysisList.push_back(NAME);
720#include "clang/Frontend/Analyses.def"
721
722  if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
723    llvm::StringRef Name = A->getValue(Args);
724    AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
725#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
726      .Case(CMDFLAG, NAME##Model)
727#include "clang/Frontend/Analyses.def"
728      .Default(NumStores);
729    // FIXME: Error handling.
730    if (Value == NumStores)
731      Diags.Report(diag::err_drv_invalid_value)
732        << A->getAsString(Args) << Name;
733    else
734      Opts.AnalysisStoreOpt = Value;
735  }
736
737  if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
738    llvm::StringRef Name = A->getValue(Args);
739    AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
740#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
741      .Case(CMDFLAG, NAME##Model)
742#include "clang/Frontend/Analyses.def"
743      .Default(NumConstraints);
744    // FIXME: Error handling.
745    if (Value == NumConstraints)
746      Diags.Report(diag::err_drv_invalid_value)
747        << A->getAsString(Args) << Name;
748    else
749      Opts.AnalysisConstraintsOpt = Value;
750  }
751
752  if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
753    llvm::StringRef Name = A->getValue(Args);
754    AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
755#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \
756      .Case(CMDFLAG, PD_##NAME)
757#include "clang/Frontend/Analyses.def"
758      .Default(NUM_ANALYSIS_DIAG_CLIENTS);
759    // FIXME: Error handling.
760    if (Value == NUM_ANALYSIS_DIAG_CLIENTS)
761      Diags.Report(diag::err_drv_invalid_value)
762        << A->getAsString(Args) << Name;
763    else
764      Opts.AnalysisDiagOpt = Value;
765  }
766
767  Opts.VisualizeEGDot = Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
768  Opts.VisualizeEGUbi = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
769  Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
770  Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
771  Opts.AnalyzeNestedBlocks =
772    Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
773  Opts.PurgeDead = !Args.hasArg(OPT_analyzer_no_purge_dead);
774  Opts.EagerlyAssume = Args.hasArg(OPT_analyzer_eagerly_assume);
775  Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
776  Opts.EnableExperimentalChecks = Args.hasArg(OPT_analyzer_experimental_checks);
777  Opts.EnableExperimentalInternalChecks =
778    Args.hasArg(OPT_analyzer_experimental_internal_checks);
779  Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
780  Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags);
781  Opts.MaxLoop = Args.getLastArgIntValue(OPT_analyzer_max_loop, 3, Diags);
782  Opts.InlineCall = Args.hasArg(OPT_analyzer_inline_call);
783}
784
785static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
786                             Diagnostic &Diags) {
787  using namespace cc1options;
788  // -Os implies -O2
789  if (Args.hasArg(OPT_Os))
790    Opts.OptimizationLevel = 2;
791  else {
792    Opts.OptimizationLevel = Args.getLastArgIntValue(OPT_O, 0, Diags);
793    if (Opts.OptimizationLevel > 3) {
794      Diags.Report(diag::err_drv_invalid_value)
795        << Args.getLastArg(OPT_O)->getAsString(Args) << Opts.OptimizationLevel;
796      Opts.OptimizationLevel = 3;
797    }
798  }
799
800  // We must always run at least the always inlining pass.
801  Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining
802    : CodeGenOptions::OnlyAlwaysInlining;
803
804  Opts.DebugInfo = Args.hasArg(OPT_g);
805  Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
806  Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
807  Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
808  Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants);
809  Opts.NoCommon = Args.hasArg(OPT_fno_common);
810  Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
811  Opts.OptimizeSize = Args.hasArg(OPT_Os);
812  Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
813                            Args.hasArg(OPT_ffreestanding));
814  Opts.UnrollLoops = (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize);
815
816  Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
817  Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
818  Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
819  Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
820  Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
821  Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
822  Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
823  Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
824  Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
825  Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
826  Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
827  Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
828  Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");
829
830  Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections);
831  Opts.DataSections = Args.hasArg(OPT_fdata_sections);
832
833  Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
834  Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
835
836  if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
837    llvm::StringRef Name = A->getValue(Args);
838    unsigned Method = llvm::StringSwitch<unsigned>(Name)
839      .Case("legacy", CodeGenOptions::Legacy)
840      .Case("non-legacy", CodeGenOptions::NonLegacy)
841      .Case("mixed", CodeGenOptions::Mixed)
842      .Default(~0U);
843    if (Method == ~0U)
844      Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
845    else
846      Opts.ObjCDispatchMethod = Method;
847  }
848}
849
850static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
851                                      ArgList &Args) {
852  using namespace cc1options;
853  Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
854  Opts.Targets = Args.getAllArgValues(OPT_MT);
855  Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
856  Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
857}
858
859static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
860                                Diagnostic &Diags) {
861  using namespace cc1options;
862  Opts.IgnoreWarnings = Args.hasArg(OPT_w);
863  Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
864  Opts.Pedantic = Args.hasArg(OPT_pedantic);
865  Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
866  Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
867  Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics);
868  Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column);
869  Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
870  Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
871  Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option);
872
873  llvm::StringRef ShowOverloads =
874    Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
875  if (ShowOverloads == "best")
876    Opts.ShowOverloads = Diagnostic::Ovl_Best;
877  else if (ShowOverloads == "all")
878    Opts.ShowOverloads = Diagnostic::Ovl_All;
879  else
880    Diags.Report(diag::err_drv_invalid_value)
881      << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
882      << ShowOverloads;
883
884  llvm::StringRef ShowCategory =
885    Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
886  if (ShowCategory == "none")
887    Opts.ShowCategories = 0;
888  else if (ShowCategory == "id")
889    Opts.ShowCategories = 1;
890  else if (ShowCategory == "name")
891    Opts.ShowCategories = 2;
892  else
893    Diags.Report(diag::err_drv_invalid_value)
894      << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
895      << ShowCategory;
896
897  Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
898  Opts.VerifyDiagnostics = Args.hasArg(OPT_verify);
899  Opts.BinaryOutput = Args.hasArg(OPT_fdiagnostics_binary);
900  Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags);
901  Opts.MacroBacktraceLimit
902    = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit,
903                         DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
904  Opts.TemplateBacktraceLimit
905    = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit,
906                         DiagnosticOptions::DefaultTemplateBacktraceLimit,
907                         Diags);
908  Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop,
909                                    DiagnosticOptions::DefaultTabStop, Diags);
910  if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
911    Diags.Report(diag::warn_ignoring_ftabstop_value)
912      << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
913    Opts.TabStop = DiagnosticOptions::DefaultTabStop;
914  }
915  Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags);
916  Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information);
917  Opts.Warnings = Args.getAllArgValues(OPT_W);
918}
919
920static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
921                                   Diagnostic &Diags) {
922  using namespace cc1options;
923  Opts.ProgramAction = frontend::ParseSyntaxOnly;
924  if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
925    switch (A->getOption().getID()) {
926    default:
927      assert(0 && "Invalid option in group!");
928    case OPT_ast_dump:
929      Opts.ProgramAction = frontend::ASTDump; break;
930    case OPT_ast_print:
931      Opts.ProgramAction = frontend::ASTPrint; break;
932    case OPT_ast_print_xml:
933      Opts.ProgramAction = frontend::ASTPrintXML; break;
934    case OPT_ast_view:
935      Opts.ProgramAction = frontend::ASTView; break;
936    case OPT_boostcon:
937      Opts.ProgramAction = frontend::BoostCon; break;
938    case OPT_dump_raw_tokens:
939      Opts.ProgramAction = frontend::DumpRawTokens; break;
940    case OPT_dump_tokens:
941      Opts.ProgramAction = frontend::DumpTokens; break;
942    case OPT_S:
943      Opts.ProgramAction = frontend::EmitAssembly; break;
944    case OPT_emit_llvm_bc:
945      Opts.ProgramAction = frontend::EmitBC; break;
946    case OPT_emit_html:
947      Opts.ProgramAction = frontend::EmitHTML; break;
948    case OPT_emit_llvm:
949      Opts.ProgramAction = frontend::EmitLLVM; break;
950    case OPT_emit_llvm_only:
951      Opts.ProgramAction = frontend::EmitLLVMOnly; break;
952    case OPT_emit_codegen_only:
953      Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
954    case OPT_emit_obj:
955      Opts.ProgramAction = frontend::EmitObj; break;
956    case OPT_fixit_EQ:
957      Opts.FixItSuffix = A->getValue(Args);
958      // fall-through!
959    case OPT_fixit:
960      Opts.ProgramAction = frontend::FixIt; break;
961    case OPT_emit_pch:
962      Opts.ProgramAction = frontend::GeneratePCH; break;
963    case OPT_emit_pth:
964      Opts.ProgramAction = frontend::GeneratePTH; break;
965    case OPT_init_only:
966      Opts.ProgramAction = frontend::InitOnly; break;
967    case OPT_parse_noop:
968      Opts.ProgramAction = frontend::ParseNoop; break;
969    case OPT_parse_print_callbacks:
970      Opts.ProgramAction = frontend::ParsePrintCallbacks; break;
971    case OPT_fsyntax_only:
972      Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
973    case OPT_print_decl_contexts:
974      Opts.ProgramAction = frontend::PrintDeclContext; break;
975    case OPT_E:
976      Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
977    case OPT_rewrite_macros:
978      Opts.ProgramAction = frontend::RewriteMacros; break;
979    case OPT_rewrite_objc:
980      Opts.ProgramAction = frontend::RewriteObjC; break;
981    case OPT_rewrite_test:
982      Opts.ProgramAction = frontend::RewriteTest; break;
983    case OPT_analyze:
984      Opts.ProgramAction = frontend::RunAnalysis; break;
985    case OPT_Eonly:
986      Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
987    }
988  }
989  if (const Arg *A = Args.getLastArg(OPT_plugin)) {
990    Opts.ProgramAction = frontend::PluginAction;
991    Opts.ActionName = A->getValue(Args);
992  }
993
994  if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
995    Opts.CodeCompletionAt =
996      ParsedSourceLocation::FromString(A->getValue(Args));
997    if (Opts.CodeCompletionAt.FileName.empty())
998      Diags.Report(diag::err_drv_invalid_value)
999        << A->getAsString(Args) << A->getValue(Args);
1000  }
1001  Opts.DebugCodeCompletionPrinter =
1002    !Args.hasArg(OPT_no_code_completion_debug_printer);
1003  Opts.DisableFree = Args.hasArg(OPT_disable_free);
1004
1005  Opts.OutputFile = Args.getLastArgValue(OPT_o);
1006  Opts.Plugins = Args.getAllArgValues(OPT_load);
1007  Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1008  Opts.ShowHelp = Args.hasArg(OPT_help);
1009  Opts.ShowMacrosInCodeCompletion = Args.hasArg(OPT_code_completion_macros);
1010  Opts.ShowCodePatternsInCodeCompletion
1011    = Args.hasArg(OPT_code_completion_patterns);
1012  Opts.ShowStats = Args.hasArg(OPT_print_stats);
1013  Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1014  Opts.ShowVersion = Args.hasArg(OPT_version);
1015  Opts.ViewClassInheritance = Args.getLastArgValue(OPT_cxx_inheritance_view);
1016  Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1017  Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1018
1019  InputKind DashX = IK_None;
1020  if (const Arg *A = Args.getLastArg(OPT_x)) {
1021    DashX = llvm::StringSwitch<InputKind>(A->getValue(Args))
1022      .Case("c", IK_C)
1023      .Case("cl", IK_OpenCL)
1024      .Case("c", IK_C)
1025      .Case("cl", IK_OpenCL)
1026      .Case("c++", IK_CXX)
1027      .Case("objective-c", IK_ObjC)
1028      .Case("objective-c++", IK_ObjCXX)
1029      .Case("cpp-output", IK_PreprocessedC)
1030      .Case("assembler-with-cpp", IK_Asm)
1031      .Case("c++-cpp-output", IK_PreprocessedCXX)
1032      .Case("objective-c-cpp-output", IK_PreprocessedObjC)
1033      .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX)
1034      .Case("c-header", IK_C)
1035      .Case("objective-c-header", IK_ObjC)
1036      .Case("c++-header", IK_CXX)
1037      .Case("objective-c++-header", IK_ObjCXX)
1038      .Case("ast", IK_AST)
1039      .Case("ir", IK_LLVM_IR)
1040      .Default(IK_None);
1041    if (DashX == IK_None)
1042      Diags.Report(diag::err_drv_invalid_value)
1043        << A->getAsString(Args) << A->getValue(Args);
1044  }
1045
1046  // '-' is the default input if none is given.
1047  std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1048  Opts.Inputs.clear();
1049  if (Inputs.empty())
1050    Inputs.push_back("-");
1051  for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1052    InputKind IK = DashX;
1053    if (IK == IK_None) {
1054      IK = FrontendOptions::getInputKindForExtension(
1055        llvm::StringRef(Inputs[i]).rsplit('.').second);
1056      // FIXME: Remove this hack.
1057      if (i == 0)
1058        DashX = IK;
1059    }
1060    Opts.Inputs.push_back(std::make_pair(IK, Inputs[i]));
1061  }
1062
1063  return DashX;
1064}
1065
1066std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1067                                                 void *MainAddr) {
1068  llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr);
1069
1070  if (!P.isEmpty()) {
1071    P.eraseComponent();  // Remove /clang from foo/bin/clang
1072    P.eraseComponent();  // Remove /bin   from foo/bin
1073
1074    // Get foo/lib/clang/<version>/include
1075    P.appendComponent("lib");
1076    P.appendComponent("clang");
1077    P.appendComponent(CLANG_VERSION_STRING);
1078  }
1079
1080  return P.str();
1081}
1082
1083static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
1084  using namespace cc1options;
1085  Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1086  Opts.Verbose = Args.hasArg(OPT_v);
1087  Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1088  Opts.UseStandardIncludes = !Args.hasArg(OPT_nostdinc);
1089  Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1090  Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1091
1092  // Add -I... and -F... options in order.
1093  for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F),
1094         ie = Args.filtered_end(); it != ie; ++it)
1095    Opts.AddPath(it->getValue(Args), frontend::Angled, true,
1096                 /*IsFramework=*/ it->getOption().matches(OPT_F));
1097
1098  // Add -iprefix/-iwith-prefix/-iwithprefixbefore options.
1099  llvm::StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1100  for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix,
1101                                             OPT_iwithprefixbefore),
1102         ie = Args.filtered_end(); it != ie; ++it) {
1103    if (it->getOption().matches(OPT_iprefix))
1104      Prefix = it->getValue(Args);
1105    else if (it->getOption().matches(OPT_iwithprefix))
1106      Opts.AddPath(Prefix.str() + it->getValue(Args),
1107                   frontend::System, false, false);
1108    else
1109      Opts.AddPath(Prefix.str() + it->getValue(Args),
1110                   frontend::Angled, false, false);
1111  }
1112
1113  for (arg_iterator it = Args.filtered_begin(OPT_idirafter),
1114         ie = Args.filtered_end(); it != ie; ++it)
1115    Opts.AddPath(it->getValue(Args), frontend::After, true, false);
1116  for (arg_iterator it = Args.filtered_begin(OPT_iquote),
1117         ie = Args.filtered_end(); it != ie; ++it)
1118    Opts.AddPath(it->getValue(Args), frontend::Quoted, true, false);
1119  for (arg_iterator it = Args.filtered_begin(OPT_isystem),
1120         ie = Args.filtered_end(); it != ie; ++it)
1121    Opts.AddPath(it->getValue(Args), frontend::System, true, false);
1122
1123  // FIXME: Need options for the various environment variables!
1124}
1125
1126static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
1127                          Diagnostic &Diags) {
1128  // FIXME: Cleanup per-file based stuff.
1129
1130  // Set some properties which depend soley on the input kind; it would be nice
1131  // to move these to the language standard, and have the driver resolve the
1132  // input kind + language standard.
1133  if (IK == IK_Asm) {
1134    Opts.AsmPreprocessor = 1;
1135  } else if (IK == IK_ObjC ||
1136             IK == IK_ObjCXX ||
1137             IK == IK_PreprocessedObjC ||
1138             IK == IK_PreprocessedObjCXX) {
1139    Opts.ObjC1 = Opts.ObjC2 = 1;
1140  }
1141
1142  LangStandard::Kind LangStd = LangStandard::lang_unspecified;
1143  if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
1144    LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args))
1145#define LANGSTANDARD(id, name, desc, features) \
1146      .Case(name, LangStandard::lang_##id)
1147#include "clang/Frontend/LangStandards.def"
1148      .Default(LangStandard::lang_unspecified);
1149    if (LangStd == LangStandard::lang_unspecified)
1150      Diags.Report(diag::err_drv_invalid_value)
1151        << A->getAsString(Args) << A->getValue(Args);
1152  }
1153
1154  if (LangStd == LangStandard::lang_unspecified) {
1155    // Based on the base language, pick one.
1156    switch (IK) {
1157    case IK_None:
1158    case IK_AST:
1159    case IK_LLVM_IR:
1160      assert(0 && "Invalid input kind!");
1161    case IK_OpenCL:
1162      LangStd = LangStandard::lang_opencl;
1163      break;
1164    case IK_Asm:
1165    case IK_C:
1166    case IK_PreprocessedC:
1167    case IK_ObjC:
1168    case IK_PreprocessedObjC:
1169      LangStd = LangStandard::lang_gnu99;
1170      break;
1171    case IK_CXX:
1172    case IK_PreprocessedCXX:
1173    case IK_ObjCXX:
1174    case IK_PreprocessedObjCXX:
1175      LangStd = LangStandard::lang_gnucxx98;
1176      break;
1177    }
1178  }
1179
1180  const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1181  Opts.BCPLComment = Std.hasBCPLComments();
1182  Opts.C99 = Std.isC99();
1183  Opts.CPlusPlus = Std.isCPlusPlus();
1184  Opts.CPlusPlus0x = Std.isCPlusPlus0x();
1185  Opts.Digraphs = Std.hasDigraphs();
1186  Opts.GNUMode = Std.isGNUMode();
1187  Opts.GNUInline = !Std.isC99();
1188  Opts.HexFloats = Std.hasHexFloats();
1189  Opts.ImplicitInt = Std.hasImplicitInt();
1190
1191  // OpenCL has some additional defaults.
1192  if (LangStd == LangStandard::lang_opencl) {
1193    Opts.OpenCL = 1;
1194    Opts.AltiVec = 1;
1195    Opts.CXXOperatorNames = 1;
1196    Opts.LaxVectorConversions = 1;
1197  }
1198
1199  // OpenCL and C++ both have bool, true, false keywords.
1200  Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1201
1202  // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
1203  // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
1204  // while a subset (the non-C++ GNU keywords) is provided by GCC's
1205  // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
1206  // name, as it doesn't seem a useful distinction.
1207  Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
1208                                  Opts.GNUMode);
1209
1210  if (Opts.CPlusPlus)
1211    Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names);
1212
1213  if (Args.hasArg(OPT_fobjc_gc_only))
1214    Opts.setGCMode(LangOptions::GCOnly);
1215  else if (Args.hasArg(OPT_fobjc_gc))
1216    Opts.setGCMode(LangOptions::HybridGC);
1217
1218  if (Args.hasArg(OPT_print_ivar_layout))
1219    Opts.ObjCGCBitmapPrint = 1;
1220  if (Args.hasArg(OPT_fno_constant_cfstrings))
1221    Opts.NoConstantCFStrings = 1;
1222
1223  if (Args.hasArg(OPT_faltivec))
1224    Opts.AltiVec = 1;
1225
1226  if (Args.hasArg(OPT_pthread))
1227    Opts.POSIXThreads = 1;
1228
1229  llvm::StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default");
1230  if (Vis == "default")
1231    Opts.setVisibilityMode(LangOptions::Default);
1232  else if (Vis == "hidden")
1233    Opts.setVisibilityMode(LangOptions::Hidden);
1234  else if (Vis == "protected")
1235    Opts.setVisibilityMode(LangOptions::Protected);
1236  else
1237    Diags.Report(diag::err_drv_invalid_value)
1238      << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis;
1239
1240  Opts.OverflowChecking = Args.hasArg(OPT_ftrapv);
1241
1242  // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
1243  // is specified, or -std is set to a conforming mode.
1244  Opts.Trigraphs = !Opts.GNUMode;
1245  if (Args.hasArg(OPT_trigraphs))
1246    Opts.Trigraphs = 1;
1247
1248  Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
1249                                   OPT_fno_dollars_in_identifiers,
1250                                   !Opts.AsmPreprocessor);
1251  Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
1252  Opts.Microsoft = Args.hasArg(OPT_fms_extensions);
1253  Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
1254  Opts.ConstStrings = Args.hasArg(OPT_Wwrite_strings);
1255  if (Args.hasArg(OPT_fno_lax_vector_conversions))
1256    Opts.LaxVectorConversions = 0;
1257  if (Args.hasArg(OPT_fno_threadsafe_statics))
1258    Opts.ThreadsafeStatics = 0;
1259  Opts.Exceptions = Args.hasArg(OPT_fexceptions);
1260  Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
1261  Opts.Blocks = Args.hasArg(OPT_fblocks);
1262  Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
1263  Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
1264  Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
1265  Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
1266  Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
1267  Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
1268  Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
1269  Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
1270  Opts.MathErrno = Args.hasArg(OPT_fmath_errno);
1271  Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024,
1272                                               Diags);
1273  Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime);
1274  Opts.ObjCConstantStringClass =
1275    Args.getLastArgValue(OPT_fconstant_string_class);
1276  Opts.ObjCNonFragileABI = Args.hasArg(OPT_fobjc_nonfragile_abi);
1277  Opts.ObjCNonFragileABI2 = Args.hasArg(OPT_fobjc_nonfragile_abi2);
1278  if (Opts.ObjCNonFragileABI2)
1279    Opts.ObjCNonFragileABI = true;
1280  Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
1281  Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
1282  Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags);
1283  Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
1284  Opts.Static = Args.hasArg(OPT_static_define);
1285  Opts.DumpRecordLayouts = Args.hasArg(OPT_fdump_record_layouts);
1286  Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
1287  Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
1288  Opts.OptimizeSize = 0;
1289
1290  // FIXME: Eliminate this dependency.
1291  unsigned Opt =
1292    Args.hasArg(OPT_Os) ? 2 : Args.getLastArgIntValue(OPT_O, 0, Diags);
1293  Opts.Optimize = Opt != 0;
1294
1295  // This is the __NO_INLINE__ define, which just depends on things like the
1296  // optimization level and -fno-inline, not actually whether the backend has
1297  // inlining enabled.
1298  //
1299  // FIXME: This is affected by other options (-fno-inline).
1300  Opts.NoInline = !Opt;
1301
1302  unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags);
1303  switch (SSP) {
1304  default:
1305    Diags.Report(diag::err_drv_invalid_value)
1306      << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
1307    break;
1308  case 0: Opts.setStackProtectorMode(LangOptions::SSPOff); break;
1309  case 1: Opts.setStackProtectorMode(LangOptions::SSPOn);  break;
1310  case 2: Opts.setStackProtectorMode(LangOptions::SSPReq); break;
1311  }
1312}
1313
1314static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
1315                                  Diagnostic &Diags) {
1316  using namespace cc1options;
1317  Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
1318  Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
1319  if (const Arg *A = Args.getLastArg(OPT_token_cache))
1320      Opts.TokenCache = A->getValue(Args);
1321  else
1322    Opts.TokenCache = Opts.ImplicitPTHInclude;
1323  Opts.UsePredefines = !Args.hasArg(OPT_undef);
1324  Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
1325  // Add macros from the command line.
1326  for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U),
1327         ie = Args.filtered_end(); it != ie; ++it) {
1328    if (it->getOption().matches(OPT_D))
1329      Opts.addMacroDef(it->getValue(Args));
1330    else
1331      Opts.addMacroUndef(it->getValue(Args));
1332  }
1333
1334  Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
1335
1336  // Add the ordered list of -includes.
1337  for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch,
1338                                             OPT_include_pth),
1339         ie = Args.filtered_end(); it != ie; ++it) {
1340    // PCH is handled specially, we need to extra the original include path.
1341    if (it->getOption().matches(OPT_include_pch)) {
1342      std::string OriginalFile =
1343        PCHReader::getOriginalSourceFile(it->getValue(Args), Diags);
1344      if (OriginalFile.empty())
1345        continue;
1346
1347      Opts.Includes.push_back(OriginalFile);
1348    } else
1349      Opts.Includes.push_back(it->getValue(Args));
1350  }
1351
1352  // Include 'altivec.h' if -faltivec option present
1353  if (Args.hasArg(OPT_faltivec))
1354    Opts.Includes.push_back("altivec.h");
1355
1356  for (arg_iterator it = Args.filtered_begin(OPT_remap_file),
1357         ie = Args.filtered_end(); it != ie; ++it) {
1358    std::pair<llvm::StringRef,llvm::StringRef> Split =
1359      llvm::StringRef(it->getValue(Args)).split(';');
1360
1361    if (Split.second.empty()) {
1362      Diags.Report(diag::err_drv_invalid_remap_file) << it->getAsString(Args);
1363      continue;
1364    }
1365
1366    Opts.addRemappedFile(Split.first, Split.second);
1367  }
1368}
1369
1370static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
1371                                        ArgList &Args) {
1372  using namespace cc1options;
1373  Opts.ShowCPP = !Args.hasArg(OPT_dM);
1374  Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
1375  Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
1376  Opts.ShowComments = Args.hasArg(OPT_C);
1377  Opts.ShowMacroComments = Args.hasArg(OPT_CC);
1378}
1379
1380static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) {
1381  using namespace cc1options;
1382  Opts.ABI = Args.getLastArgValue(OPT_target_abi);
1383  Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi);
1384  Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
1385  Opts.Triple = Args.getLastArgValue(OPT_triple);
1386  Opts.Features = Args.getAllArgValues(OPT_target_feature);
1387
1388  // Use the host triple if unspecified.
1389  if (Opts.Triple.empty())
1390    Opts.Triple = llvm::sys::getHostTriple();
1391
1392  // Use the Itanium C++ ABI if unspecified.
1393  if (Opts.CXXABI.empty())
1394    Opts.CXXABI = "itanium";
1395}
1396
1397//
1398
1399void CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
1400                                        const char **ArgBegin,
1401                                        const char **ArgEnd,
1402                                        Diagnostic &Diags) {
1403  // Parse the arguments.
1404  llvm::OwningPtr<OptTable> Opts(createCC1OptTable());
1405  unsigned MissingArgIndex, MissingArgCount;
1406  llvm::OwningPtr<InputArgList> Args(
1407    Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount));
1408
1409  // Check for missing argument error.
1410  if (MissingArgCount)
1411    Diags.Report(diag::err_drv_missing_argument)
1412      << Args->getArgString(MissingArgIndex) << MissingArgCount;
1413
1414  // Issue errors on unknown arguments.
1415  for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN),
1416         ie = Args->filtered_end(); it != ie; ++it)
1417    Diags.Report(diag::err_drv_unknown_argument) << it->getAsString(*Args);
1418
1419  ParseAnalyzerArgs(Res.getAnalyzerOpts(), *Args, Diags);
1420  ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, Diags);
1421  ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args);
1422  ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, Diags);
1423  InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags);
1424  ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args);
1425  if (DashX != IK_AST && DashX != IK_LLVM_IR)
1426    ParseLangArgs(Res.getLangOpts(), *Args, DashX, Diags);
1427  ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, Diags);
1428  ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args);
1429  ParseTargetArgs(Res.getTargetOpts(), *Args);
1430}
1431