diff options
Diffstat (limited to 'lib/Serialization/ASTReader.cpp')
| -rw-r--r-- | lib/Serialization/ASTReader.cpp | 2323 |
1 files changed, 1393 insertions, 930 deletions
diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp index 3adbc57..deba302 100644 --- a/lib/Serialization/ASTReader.cpp +++ b/lib/Serialization/ASTReader.cpp @@ -30,13 +30,16 @@ #include "clang/Lex/MacroInfo.h" #include "clang/Lex/PreprocessingRecord.h" #include "clang/Lex/Preprocessor.h" +#include "clang/Lex/PreprocessorOptions.h" #include "clang/Lex/HeaderSearch.h" +#include "clang/Lex/HeaderSearchOptions.h" #include "clang/Basic/OnDiskHashTable.h" #include "clang/Basic/SourceManager.h" #include "clang/Basic/SourceManagerInternals.h" #include "clang/Basic/FileManager.h" #include "clang/Basic/FileSystemStatCache.h" #include "clang/Basic/TargetInfo.h" +#include "clang/Basic/TargetOptions.h" #include "clang/Basic/Version.h" #include "clang/Basic/VersionTuple.h" #include "llvm/ADT/StringExtras.h" @@ -62,353 +65,306 @@ using namespace clang::serialization::reader; ASTReaderListener::~ASTReaderListener() {} -bool -PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts) { - const LangOptions &PPLangOpts = PP.getLangOpts(); - -#define LANGOPT(Name, Bits, Default, Description) \ - if (PPLangOpts.Name != LangOpts.Name) { \ - Reader.Diag(diag::err_pch_langopt_mismatch) \ - << Description << LangOpts.Name << PPLangOpts.Name; \ +/// \brief Compare the given set of language options against an existing set of +/// language options. +/// +/// \param Diags If non-NULL, diagnostics will be emitted via this engine. +/// +/// \returns true if the languagae options mis-match, false otherwise. +static bool checkLanguageOptions(const LangOptions &LangOpts, + const LangOptions &ExistingLangOpts, + DiagnosticsEngine *Diags) { +#define LANGOPT(Name, Bits, Default, Description) \ + if (ExistingLangOpts.Name != LangOpts.Name) { \ + if (Diags) \ + Diags->Report(diag::err_pch_langopt_mismatch) \ + << Description << LangOpts.Name << ExistingLangOpts.Name; \ + return true; \ + } + +#define VALUE_LANGOPT(Name, Bits, Default, Description) \ + if (ExistingLangOpts.Name != LangOpts.Name) { \ + if (Diags) \ + Diags->Report(diag::err_pch_langopt_value_mismatch) \ + << Description; \ return true; \ } -#define VALUE_LANGOPT(Name, Bits, Default, Description) \ - if (PPLangOpts.Name != LangOpts.Name) { \ - Reader.Diag(diag::err_pch_langopt_value_mismatch) \ - << Description; \ - return true; \ -} - -#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ - if (PPLangOpts.get##Name() != LangOpts.get##Name()) { \ - Reader.Diag(diag::err_pch_langopt_value_mismatch) \ - << Description; \ - return true; \ +#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ + if (ExistingLangOpts.get##Name() != LangOpts.get##Name()) { \ + if (Diags) \ + Diags->Report(diag::err_pch_langopt_value_mismatch) \ + << Description; \ + return true; \ } #define BENIGN_LANGOPT(Name, Bits, Default, Description) #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) #include "clang/Basic/LangOptions.def" - if (PPLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) { - Reader.Diag(diag::err_pch_langopt_value_mismatch) + if (ExistingLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) { + if (Diags) + Diags->Report(diag::err_pch_langopt_value_mismatch) << "target Objective-C runtime"; return true; } - + return false; } -bool PCHValidator::ReadTargetTriple(StringRef Triple) { - if (Triple == PP.getTargetInfo().getTriple().str()) - return false; - - Reader.Diag(diag::warn_pch_target_triple) - << Triple << PP.getTargetInfo().getTriple().str(); - return true; -} +/// \brief Compare the given set of target options against an existing set of +/// target options. +/// +/// \param Diags If non-NULL, diagnostics will be emitted via this engine. +/// +/// \returns true if the target options mis-match, false otherwise. +static bool checkTargetOptions(const TargetOptions &TargetOpts, + const TargetOptions &ExistingTargetOpts, + DiagnosticsEngine *Diags) { +#define CHECK_TARGET_OPT(Field, Name) \ + if (TargetOpts.Field != ExistingTargetOpts.Field) { \ + if (Diags) \ + Diags->Report(diag::err_pch_targetopt_mismatch) \ + << Name << TargetOpts.Field << ExistingTargetOpts.Field; \ + return true; \ + } + + CHECK_TARGET_OPT(Triple, "target"); + CHECK_TARGET_OPT(CPU, "target CPU"); + CHECK_TARGET_OPT(ABI, "target ABI"); + CHECK_TARGET_OPT(CXXABI, "target C++ ABI"); + CHECK_TARGET_OPT(LinkerVersion, "target linker version"); +#undef CHECK_TARGET_OPT + + // Compare feature sets. + SmallVector<StringRef, 4> ExistingFeatures( + ExistingTargetOpts.FeaturesAsWritten.begin(), + ExistingTargetOpts.FeaturesAsWritten.end()); + SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(), + TargetOpts.FeaturesAsWritten.end()); + std::sort(ExistingFeatures.begin(), ExistingFeatures.end()); + std::sort(ReadFeatures.begin(), ReadFeatures.end()); + + unsigned ExistingIdx = 0, ExistingN = ExistingFeatures.size(); + unsigned ReadIdx = 0, ReadN = ReadFeatures.size(); + while (ExistingIdx < ExistingN && ReadIdx < ReadN) { + if (ExistingFeatures[ExistingIdx] == ReadFeatures[ReadIdx]) { + ++ExistingIdx; + ++ReadIdx; + continue; + } -namespace { - struct EmptyStringRef { - bool operator ()(StringRef r) const { return r.empty(); } - }; - struct EmptyBlock { - bool operator ()(const PCHPredefinesBlock &r) const {return r.Data.empty();} - }; -} + if (ReadFeatures[ReadIdx] < ExistingFeatures[ExistingIdx]) { + if (Diags) + Diags->Report(diag::err_pch_targetopt_feature_mismatch) + << false << ReadFeatures[ReadIdx]; + return true; + } -static bool EqualConcatenations(SmallVector<StringRef, 2> L, - PCHPredefinesBlocks R) { - // First, sum up the lengths. - unsigned LL = 0, RL = 0; - for (unsigned I = 0, N = L.size(); I != N; ++I) { - LL += L[I].size(); - } - for (unsigned I = 0, N = R.size(); I != N; ++I) { - RL += R[I].Data.size(); - } - if (LL != RL) - return false; - if (LL == 0 && RL == 0) + if (Diags) + Diags->Report(diag::err_pch_targetopt_feature_mismatch) + << true << ExistingFeatures[ExistingIdx]; return true; - - // Kick out empty parts, they confuse the algorithm below. - L.erase(std::remove_if(L.begin(), L.end(), EmptyStringRef()), L.end()); - R.erase(std::remove_if(R.begin(), R.end(), EmptyBlock()), R.end()); - - // Do it the hard way. At this point, both vectors must be non-empty. - StringRef LR = L[0], RR = R[0].Data; - unsigned LI = 0, RI = 0, LN = L.size(), RN = R.size(); - (void) RN; - for (;;) { - // Compare the current pieces. - if (LR.size() == RR.size()) { - // If they're the same length, it's pretty easy. - if (LR != RR) - return false; - // Both pieces are done, advance. - ++LI; - ++RI; - // If either string is done, they're both done, since they're the same - // length. - if (LI == LN) { - assert(RI == RN && "Strings not the same length after all?"); - return true; - } - LR = L[LI]; - RR = R[RI].Data; - } else if (LR.size() < RR.size()) { - // Right piece is longer. - if (!RR.startswith(LR)) - return false; - ++LI; - assert(LI != LN && "Strings not the same length after all?"); - RR = RR.substr(LR.size()); - LR = L[LI]; - } else { - // Left piece is longer. - if (!LR.startswith(RR)) - return false; - ++RI; - assert(RI != RN && "Strings not the same length after all?"); - LR = LR.substr(RR.size()); - RR = R[RI].Data; - } } -} -static std::pair<FileID, StringRef::size_type> -FindMacro(const PCHPredefinesBlocks &Buffers, StringRef MacroDef) { - std::pair<FileID, StringRef::size_type> Res; - for (unsigned I = 0, N = Buffers.size(); I != N; ++I) { - Res.second = Buffers[I].Data.find(MacroDef); - if (Res.second != StringRef::npos) { - Res.first = Buffers[I].BufferID; - break; - } + if (ExistingIdx < ExistingN) { + if (Diags) + Diags->Report(diag::err_pch_targetopt_feature_mismatch) + << true << ExistingFeatures[ExistingIdx]; + return true; } - return Res; -} - -bool PCHValidator::ReadPredefinesBuffer(const PCHPredefinesBlocks &Buffers, - StringRef OriginalFileName, - std::string &SuggestedPredefines, - FileManager &FileMgr) { - // We are in the context of an implicit include, so the predefines buffer will - // have a #include entry for the PCH file itself (as normalized by the - // preprocessor initialization). Find it and skip over it in the checking - // below. - SmallString<256> PCHInclude; - PCHInclude += "#include \""; - PCHInclude += HeaderSearch::NormalizeDashIncludePath(OriginalFileName, - FileMgr); - PCHInclude += "\"\n"; - std::pair<StringRef,StringRef> Split = - StringRef(PP.getPredefines()).split(PCHInclude.str()); - StringRef Left = Split.first, Right = Split.second; - if (Left == PP.getPredefines()) { - Error("Missing PCH include entry!"); + + if (ReadIdx < ReadN) { + if (Diags) + Diags->Report(diag::err_pch_targetopt_feature_mismatch) + << false << ReadFeatures[ReadIdx]; return true; } - // If the concatenation of all the PCH buffers is equal to the adjusted - // command line, we're done. - SmallVector<StringRef, 2> CommandLine; - CommandLine.push_back(Left); - CommandLine.push_back(Right); - if (EqualConcatenations(CommandLine, Buffers)) - return false; + return false; +} - SourceManager &SourceMgr = PP.getSourceManager(); - - // The predefines buffers are different. Determine what the differences are, - // and whether they require us to reject the PCH file. - SmallVector<StringRef, 8> PCHLines; - for (unsigned I = 0, N = Buffers.size(); I != N; ++I) - Buffers[I].Data.split(PCHLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false); - - SmallVector<StringRef, 8> CmdLineLines; - Left.split(CmdLineLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false); - - // Pick out implicit #includes after the PCH and don't consider them for - // validation; we will insert them into SuggestedPredefines so that the - // preprocessor includes them. - std::string IncludesAfterPCH; - SmallVector<StringRef, 8> AfterPCHLines; - Right.split(AfterPCHLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false); - for (unsigned i = 0, e = AfterPCHLines.size(); i != e; ++i) { - if (AfterPCHLines[i].startswith("#include ")) { - IncludesAfterPCH += AfterPCHLines[i]; - IncludesAfterPCH += '\n'; - } else { - CmdLineLines.push_back(AfterPCHLines[i]); - } - } - - // Make sure we add the includes last into SuggestedPredefines before we - // exit this function. - struct AddIncludesRAII { - std::string &SuggestedPredefines; - std::string &IncludesAfterPCH; - - AddIncludesRAII(std::string &SuggestedPredefines, - std::string &IncludesAfterPCH) - : SuggestedPredefines(SuggestedPredefines), - IncludesAfterPCH(IncludesAfterPCH) { } - ~AddIncludesRAII() { - SuggestedPredefines += IncludesAfterPCH; - } - } AddIncludes(SuggestedPredefines, IncludesAfterPCH); - - // Sort both sets of predefined buffer lines, since we allow some extra - // definitions and they may appear at any point in the output. - std::sort(CmdLineLines.begin(), CmdLineLines.end()); - std::sort(PCHLines.begin(), PCHLines.end()); - - // Determine which predefines that were used to build the PCH file are missing - // from the command line. - std::vector<StringRef> MissingPredefines; - std::set_difference(PCHLines.begin(), PCHLines.end(), - CmdLineLines.begin(), CmdLineLines.end(), - std::back_inserter(MissingPredefines)); - - bool MissingDefines = false; - bool ConflictingDefines = false; - for (unsigned I = 0, N = MissingPredefines.size(); I != N; ++I) { - StringRef Missing = MissingPredefines[I]; - if (Missing.startswith("#include ")) { - // An -include was specified when generating the PCH; it is included in - // the PCH, just ignore it. - continue; - } - if (!Missing.startswith("#define ")) { - Reader.Diag(diag::warn_pch_compiler_options_mismatch); - return true; - } +bool +PCHValidator::ReadLanguageOptions(const LangOptions &LangOpts, + bool Complain) { + const LangOptions &ExistingLangOpts = PP.getLangOpts(); + return checkLanguageOptions(LangOpts, ExistingLangOpts, + Complain? &Reader.Diags : 0); +} - // This is a macro definition. Determine the name of the macro we're - // defining. - std::string::size_type StartOfMacroName = strlen("#define "); - std::string::size_type EndOfMacroName - = Missing.find_first_of("( \n\r", StartOfMacroName); - assert(EndOfMacroName != std::string::npos && - "Couldn't find the end of the macro name"); - StringRef MacroName = Missing.slice(StartOfMacroName, EndOfMacroName); - - // Determine whether this macro was given a different definition on the - // command line. - std::string MacroDefStart = "#define " + MacroName.str(); - std::string::size_type MacroDefLen = MacroDefStart.size(); - SmallVector<StringRef, 8>::iterator ConflictPos - = std::lower_bound(CmdLineLines.begin(), CmdLineLines.end(), - MacroDefStart); - for (; ConflictPos != CmdLineLines.end(); ++ConflictPos) { - if (!ConflictPos->startswith(MacroDefStart)) { - // Different macro; we're done. - ConflictPos = CmdLineLines.end(); - break; - } +bool PCHValidator::ReadTargetOptions(const TargetOptions &TargetOpts, + bool Complain) { + const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts(); + return checkTargetOptions(TargetOpts, ExistingTargetOpts, + Complain? &Reader.Diags : 0); +} - assert(ConflictPos->size() > MacroDefLen && - "Invalid #define in predefines buffer?"); - if ((*ConflictPos)[MacroDefLen] != ' ' && - (*ConflictPos)[MacroDefLen] != '(') - continue; // Longer macro name; keep trying. +namespace { + typedef llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> > + MacroDefinitionsMap; +} - // We found a conflicting macro definition. - break; - } +/// \brief Collect the macro definitions provided by the given preprocessor +/// options. +static void collectMacroDefinitions(const PreprocessorOptions &PPOpts, + MacroDefinitionsMap &Macros, + SmallVectorImpl<StringRef> *MacroNames = 0){ + for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) { + StringRef Macro = PPOpts.Macros[I].first; + bool IsUndef = PPOpts.Macros[I].second; - if (ConflictPos != CmdLineLines.end()) { - Reader.Diag(diag::warn_cmdline_conflicting_macro_def) - << MacroName; + std::pair<StringRef, StringRef> MacroPair = Macro.split('='); + StringRef MacroName = MacroPair.first; + StringRef MacroBody = MacroPair.second; - // Show the definition of this macro within the PCH file. - std::pair<FileID, StringRef::size_type> MacroLoc = - FindMacro(Buffers, Missing); - assert(MacroLoc.second!=StringRef::npos && "Unable to find macro!"); - SourceLocation PCHMissingLoc = - SourceMgr.getLocForStartOfFile(MacroLoc.first) - .getLocWithOffset(MacroLoc.second); - Reader.Diag(PCHMissingLoc, diag::note_pch_macro_defined_as) << MacroName; + // For an #undef'd macro, we only care about the name. + if (IsUndef) { + if (MacroNames && !Macros.count(MacroName)) + MacroNames->push_back(MacroName); - ConflictingDefines = true; + Macros[MacroName] = std::make_pair("", true); continue; } - // If the macro doesn't conflict, then we'll just pick up the macro - // definition from the PCH file. Warn the user that they made a mistake. - if (ConflictingDefines) - continue; // Don't complain if there are already conflicting defs - - if (!MissingDefines) { - Reader.Diag(diag::warn_cmdline_missing_macro_defs); - MissingDefines = true; + // For a #define'd macro, figure out the actual definition. + if (MacroName.size() == Macro.size()) + MacroBody = "1"; + else { + // Note: GCC drops anything following an end-of-line character. + StringRef::size_type End = MacroBody.find_first_of("\n\r"); + MacroBody = MacroBody.substr(0, End); } - // Show the definition of this macro within the PCH file. - std::pair<FileID, StringRef::size_type> MacroLoc = - FindMacro(Buffers, Missing); - assert(MacroLoc.second!=StringRef::npos && "Unable to find macro!"); - SourceLocation PCHMissingLoc = - SourceMgr.getLocForStartOfFile(MacroLoc.first) - .getLocWithOffset(MacroLoc.second); - Reader.Diag(PCHMissingLoc, diag::note_using_macro_def_from_pch); + if (MacroNames && !Macros.count(MacroName)) + MacroNames->push_back(MacroName); + Macros[MacroName] = std::make_pair(MacroBody, false); } +} + +/// \brief Check the preprocessor options deserialized from the control block +/// against the preprocessor options in an existing preprocessor. +/// +/// \param Diags If non-null, produce diagnostics for any mismatches incurred. +static bool checkPreprocessorOptions(const PreprocessorOptions &PPOpts, + const PreprocessorOptions &ExistingPPOpts, + DiagnosticsEngine *Diags, + FileManager &FileMgr, + std::string &SuggestedPredefines) { + // Check macro definitions. + MacroDefinitionsMap ASTFileMacros; + collectMacroDefinitions(PPOpts, ASTFileMacros); + MacroDefinitionsMap ExistingMacros; + SmallVector<StringRef, 4> ExistingMacroNames; + collectMacroDefinitions(ExistingPPOpts, ExistingMacros, &ExistingMacroNames); + + for (unsigned I = 0, N = ExistingMacroNames.size(); I != N; ++I) { + // Dig out the macro definition in the existing preprocessor options. + StringRef MacroName = ExistingMacroNames[I]; + std::pair<StringRef, bool> Existing = ExistingMacros[MacroName]; + + // Check whether we know anything about this macro name or not. + llvm::StringMap<std::pair<StringRef, bool /*IsUndef*/> >::iterator Known + = ASTFileMacros.find(MacroName); + if (Known == ASTFileMacros.end()) { + // FIXME: Check whether this identifier was referenced anywhere in the + // AST file. If so, we should reject the AST file. Unfortunately, this + // information isn't in the control block. What shall we do about it? + + if (Existing.second) { + SuggestedPredefines += "#undef "; + SuggestedPredefines += MacroName.str(); + SuggestedPredefines += '\n'; + } else { + SuggestedPredefines += "#define "; + SuggestedPredefines += MacroName.str(); + SuggestedPredefines += ' '; + SuggestedPredefines += Existing.first.str(); + SuggestedPredefines += '\n'; + } + continue; + } - if (ConflictingDefines) - return true; - - // Determine what predefines were introduced based on command-line - // parameters that were not present when building the PCH - // file. Extra #defines are okay, so long as the identifiers being - // defined were not used within the precompiled header. - std::vector<StringRef> ExtraPredefines; - std::set_difference(CmdLineLines.begin(), CmdLineLines.end(), - PCHLines.begin(), PCHLines.end(), - std::back_inserter(ExtraPredefines)); - for (unsigned I = 0, N = ExtraPredefines.size(); I != N; ++I) { - StringRef &Extra = ExtraPredefines[I]; - if (!Extra.startswith("#define ")) { - Reader.Diag(diag::warn_pch_compiler_options_mismatch); + // If the macro was defined in one but undef'd in the other, we have a + // conflict. + if (Existing.second != Known->second.second) { + if (Diags) { + Diags->Report(diag::err_pch_macro_def_undef) + << MacroName << Known->second.second; + } return true; } - // This is an extra macro definition. Determine the name of the - // macro we're defining. - std::string::size_type StartOfMacroName = strlen("#define "); - std::string::size_type EndOfMacroName - = Extra.find_first_of("( \n\r", StartOfMacroName); - assert(EndOfMacroName != std::string::npos && - "Couldn't find the end of the macro name"); - StringRef MacroName = Extra.slice(StartOfMacroName, EndOfMacroName); - - // Check whether this name was used somewhere in the PCH file. If - // so, defining it as a macro could change behavior, so we reject - // the PCH file. - if (IdentifierInfo *II = Reader.get(MacroName)) { - Reader.Diag(diag::warn_macro_name_used_in_pch) << II; - return true; + // If the macro was #undef'd in both, or if the macro bodies are identical, + // it's fine. + if (Existing.second || Existing.first == Known->second.first) + continue; + + // The macro bodies differ; complain. + if (Diags) { + Diags->Report(diag::err_pch_macro_def_conflict) + << MacroName << Known->second.first << Existing.first; } + return true; + } - // Add this definition to the suggested predefines buffer. - SuggestedPredefines += Extra; - SuggestedPredefines += '\n'; + // Check whether we're using predefines. + if (PPOpts.UsePredefines != ExistingPPOpts.UsePredefines) { + if (Diags) { + Diags->Report(diag::err_pch_undef) << ExistingPPOpts.UsePredefines; + } + return true; + } + + // Compute the #include and #include_macros lines we need. + for (unsigned I = 0, N = ExistingPPOpts.Includes.size(); I != N; ++I) { + StringRef File = ExistingPPOpts.Includes[I]; + if (File == ExistingPPOpts.ImplicitPCHInclude) + continue; + + if (std::find(PPOpts.Includes.begin(), PPOpts.Includes.end(), File) + != PPOpts.Includes.end()) + continue; + + SuggestedPredefines += "#include \""; + SuggestedPredefines += + HeaderSearch::NormalizeDashIncludePath(File, FileMgr); + SuggestedPredefines += "\"\n"; + } + + for (unsigned I = 0, N = ExistingPPOpts.MacroIncludes.size(); I != N; ++I) { + StringRef File = ExistingPPOpts.MacroIncludes[I]; + if (std::find(PPOpts.MacroIncludes.begin(), PPOpts.MacroIncludes.end(), + File) + != PPOpts.MacroIncludes.end()) + continue; + + SuggestedPredefines += "#__include_macros \""; + SuggestedPredefines += + HeaderSearch::NormalizeDashIncludePath(File, FileMgr); + SuggestedPredefines += "\"\n##\n"; } - // If we get here, it's because the predefines buffer had compatible - // contents. Accept the PCH file. return false; } +bool PCHValidator::ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, + bool Complain, + std::string &SuggestedPredefines) { + const PreprocessorOptions &ExistingPPOpts = PP.getPreprocessorOpts(); + + return checkPreprocessorOptions(PPOpts, ExistingPPOpts, + Complain? &Reader.Diags : 0, + PP.getFileManager(), + SuggestedPredefines); +} + void PCHValidator::ReadHeaderFileInfo(const HeaderFileInfo &HFI, unsigned ID) { PP.getHeaderSearchInfo().setHeaderFileInfoForUID(HFI, ID); ++NumHeaderInfos; } -void PCHValidator::ReadCounter(unsigned Value) { +void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) { PP.setCounterValue(Value); } @@ -527,6 +483,7 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k, return II; } + unsigned ObjCOrBuiltinID = ReadUnalignedLE16(d); unsigned Bits = ReadUnalignedLE16(d); bool CPlusPlusOperatorKeyword = Bits & 0x01; Bits >>= 1; @@ -536,13 +493,11 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k, Bits >>= 1; bool ExtensionToken = Bits & 0x01; Bits >>= 1; - bool hasMacroDefinition = Bits & 0x01; + bool hadMacroDefinition = Bits & 0x01; Bits >>= 1; - unsigned ObjCOrBuiltinID = Bits & 0x7FF; - Bits >>= 11; assert(Bits == 0 && "Extra bits in the identifier?"); - DataLen -= 6; + DataLen -= 8; // Build the IdentifierInfo itself and link the identifier ID with // the new IdentifierInfo. @@ -570,31 +525,14 @@ IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k, // If this identifier is a macro, deserialize the macro // definition. - if (hasMacroDefinition) { - // FIXME: Check for conflicts? - uint32_t Offset = ReadUnalignedLE32(d); - unsigned LocalSubmoduleID = ReadUnalignedLE32(d); - - // Determine whether this macro definition should be visible now, or - // whether it is in a hidden submodule. - bool Visible = true; - if (SubmoduleID GlobalSubmoduleID - = Reader.getGlobalSubmoduleID(F, LocalSubmoduleID)) { - if (Module *Owner = Reader.getSubmodule(GlobalSubmoduleID)) { - if (Owner->NameVisibility == Module::Hidden) { - // The owning module is not visible, and this macro definition should - // not be, either. - Visible = false; - - // Note that this macro definition was hidden because its owning - // module is not yet visible. - Reader.HiddenNamesMap[Owner].push_back(II); - } - } + if (hadMacroDefinition) { + SmallVector<MacroID, 4> MacroIDs; + while (uint32_t LocalID = ReadUnalignedLE32(d)) { + MacroIDs.push_back(Reader.getGlobalMacroID(F, LocalID)); + DataLen -= 4; } - - Reader.setIdentifierIsMacro(II, F, Offset, Visible); - DataLen -= 8; + DataLen -= 4; + Reader.setIdentifierIsMacro(II, MacroIDs); } Reader.SetIdentifierInfo(ID, II); @@ -780,16 +718,6 @@ void ASTReader::Error(unsigned DiagID, Diag(DiagID) << Arg1 << Arg2; } -/// \brief Tell the AST listener about the predefines buffers in the chain. -bool ASTReader::CheckPredefinesBuffers() { - if (Listener) - return Listener->ReadPredefinesBuffer(PCHPredefinesBuffers, - ActualOriginalFileName, - SuggestedPredefines, - FileMgr); - return false; -} - //===----------------------------------------------------------------------===// // Source Manager Deserialization //===----------------------------------------------------------------------===// @@ -808,7 +736,7 @@ bool ASTReader::ParseLineTable(ModuleFile &F, unsigned FilenameLen = Record[Idx++]; std::string Filename(&Record[Idx], &Record[Idx] + FilenameLen); Idx += FilenameLen; - MaybeAddSystemRootToFilename(Filename); + MaybeAddSystemRootToFilename(F, Filename); FileIDs[I] = LineTable.getLineTableFilenameID(Filename); } @@ -841,106 +769,8 @@ bool ASTReader::ParseLineTable(ModuleFile &F, return false; } -namespace { - -class ASTStatData { -public: - const ino_t ino; - const dev_t dev; - const mode_t mode; - const time_t mtime; - const off_t size; - - ASTStatData(ino_t i, dev_t d, mode_t mo, time_t m, off_t s) - : ino(i), dev(d), mode(mo), mtime(m), size(s) {} -}; - -class ASTStatLookupTrait { - public: - typedef const char *external_key_type; - typedef const char *internal_key_type; - - typedef ASTStatData data_type; - - static unsigned ComputeHash(const char *path) { - return llvm::HashString(path); - } - - static internal_key_type GetInternalKey(const char *path) { return path; } - - static bool EqualKey(internal_key_type a, internal_key_type b) { - return strcmp(a, b) == 0; - } - - static std::pair<unsigned, unsigned> - ReadKeyDataLength(const unsigned char*& d) { - unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d); - unsigned DataLen = (unsigned) *d++; - return std::make_pair(KeyLen + 1, DataLen); - } - - static internal_key_type ReadKey(const unsigned char *d, unsigned) { - return (const char *)d; - } - - static data_type ReadData(const internal_key_type, const unsigned char *d, - unsigned /*DataLen*/) { - using namespace clang::io; - - ino_t ino = (ino_t) ReadUnalignedLE32(d); - dev_t dev = (dev_t) ReadUnalignedLE32(d); - mode_t mode = (mode_t) ReadUnalignedLE16(d); - time_t mtime = (time_t) ReadUnalignedLE64(d); - off_t size = (off_t) ReadUnalignedLE64(d); - return data_type(ino, dev, mode, mtime, size); - } -}; - -/// \brief stat() cache for precompiled headers. -/// -/// This cache is very similar to the stat cache used by pretokenized -/// headers. -class ASTStatCache : public FileSystemStatCache { - typedef OnDiskChainedHashTable<ASTStatLookupTrait> CacheTy; - CacheTy *Cache; - - unsigned &NumStatHits, &NumStatMisses; -public: - ASTStatCache(const unsigned char *Buckets, const unsigned char *Base, - unsigned &NumStatHits, unsigned &NumStatMisses) - : Cache(0), NumStatHits(NumStatHits), NumStatMisses(NumStatMisses) { - Cache = CacheTy::Create(Buckets, Base); - } - - ~ASTStatCache() { delete Cache; } - - LookupResult getStat(const char *Path, struct stat &StatBuf, - int *FileDescriptor) { - // Do the lookup for the file's data in the AST file. - CacheTy::iterator I = Cache->find(Path); - - // If we don't get a hit in the AST file just forward to 'stat'. - if (I == Cache->end()) { - ++NumStatMisses; - return statChained(Path, StatBuf, FileDescriptor); - } - - ++NumStatHits; - ASTStatData Data = *I; - - StatBuf.st_ino = Data.ino; - StatBuf.st_dev = Data.dev; - StatBuf.st_mtime = Data.mtime; - StatBuf.st_mode = Data.mode; - StatBuf.st_size = Data.size; - return CacheExists; - } -}; -} // end anonymous namespace - - /// \brief Read a source manager block -ASTReader::ASTReadResult ASTReader::ReadSourceManagerBlock(ModuleFile &F) { +bool ASTReader::ReadSourceManagerBlock(ModuleFile &F) { using namespace SrcMgr; llvm::BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor; @@ -954,13 +784,13 @@ ASTReader::ASTReadResult ASTReader::ReadSourceManagerBlock(ModuleFile &F) { // The stream itself is going to skip over the source manager block. if (F.Stream.SkipBlock()) { Error("malformed block record in AST file"); - return Failure; + return true; } // Enter the source manager block. if (SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) { Error("malformed source manager block record in AST file"); - return Failure; + return true; } RecordData Record; @@ -969,9 +799,9 @@ ASTReader::ASTReadResult ASTReader::ReadSourceManagerBlock(ModuleFile &F) { if (Code == llvm::bitc::END_BLOCK) { if (SLocEntryCursor.ReadBlockEnd()) { Error("error at end of Source Manager block in AST file"); - return Failure; + return true; } - return Success; + return false; } if (Code == llvm::bitc::ENTER_SUBBLOCK) { @@ -979,7 +809,7 @@ ASTReader::ASTReadResult ASTReader::ReadSourceManagerBlock(ModuleFile &F) { SLocEntryCursor.ReadSubBlockID(); if (SLocEntryCursor.SkipBlock()) { Error("malformed block record in AST file"); - return Failure; + return true; } continue; } @@ -1001,7 +831,7 @@ ASTReader::ASTReadResult ASTReader::ReadSourceManagerBlock(ModuleFile &F) { case SM_SLOC_BUFFER_ENTRY: case SM_SLOC_EXPANSION_ENTRY: // Once we hit one of the source location entries, we're done. - return Success; + return false; } } } @@ -1039,14 +869,13 @@ resolveFileRelativeToOriginalDir(const std::string &Filename, return currPCHPath.str(); } -/// \brief Read in the source location entry with the given ID. -ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) { +bool ASTReader::ReadSLocEntry(int ID) { if (ID == 0) - return Success; + return false; if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) { Error("source location entry ID out-of-range for AST file"); - return Failure; + return true; } ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second; @@ -1060,7 +889,7 @@ ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) { Code == llvm::bitc::ENTER_SUBBLOCK || Code == llvm::bitc::DEFINE_ABBREV) { Error("incorrectly-formatted source location entry in AST file"); - return Failure; + return true; } RecordData Record; @@ -1069,58 +898,18 @@ ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) { switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) { default: Error("incorrectly-formatted source location entry in AST file"); - return Failure; + return true; case SM_SLOC_FILE_ENTRY: { - if (Record.size() < 7) { - Error("source location entry is incorrect"); - return Failure; - } - // We will detect whether a file changed and return 'Failure' for it, but // we will also try to fail gracefully by setting up the SLocEntry. - ASTReader::ASTReadResult Result = Success; - - bool OverriddenBuffer = Record[6]; - - std::string OrigFilename(BlobStart, BlobStart + BlobLen); - std::string Filename = OrigFilename; - MaybeAddSystemRootToFilename(Filename); - const FileEntry *File = - OverriddenBuffer? FileMgr.getVirtualFile(Filename, (off_t)Record[4], - (time_t)Record[5]) - : FileMgr.getFile(Filename, /*OpenFile=*/false); - if (File == 0 && !OriginalDir.empty() && !CurrentDir.empty() && - OriginalDir != CurrentDir) { - std::string resolved = resolveFileRelativeToOriginalDir(Filename, - OriginalDir, - CurrentDir); - if (!resolved.empty()) - File = FileMgr.getFile(resolved); - } - if (File == 0) - File = FileMgr.getVirtualFile(Filename, (off_t)Record[4], - (time_t)Record[5]); - if (File == 0) { - std::string ErrorStr = "could not find file '"; - ErrorStr += Filename; - ErrorStr += "' referenced by AST file"; - Error(ErrorStr.c_str()); - return Failure; - } + unsigned InputID = Record[4]; + InputFile IF = getInputFile(*F, InputID); + const FileEntry *File = IF.getPointer(); + bool OverriddenBuffer = IF.getInt(); - if (!DisableValidation && - ((off_t)Record[4] != File->getSize() -#if !defined(LLVM_ON_WIN32) - // In our regression testing, the Windows file system seems to - // have inconsistent modification times that sometimes - // erroneously trigger this error-handling path. - || (time_t)Record[5] != File->getModificationTime() -#endif - )) { - Error(diag::err_fe_pch_file_modified, Filename); - Result = Failure; - } + if (!IF.getPointer()) + return true; SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); if (IncludeLoc.isInvalid() && F->Kind != MK_MainFile) { @@ -1133,12 +922,12 @@ ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) { ID, BaseOffset + Record[0]); SrcMgr::FileInfo &FileInfo = const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile()); - FileInfo.NumCreatedFIDs = Record[7]; + FileInfo.NumCreatedFIDs = Record[5]; if (Record[3]) FileInfo.setHasLineDirectives(); - const DeclID *FirstDecl = F->FileSortedDecls + Record[8]; - unsigned NumFileDecls = Record[9]; + const DeclID *FirstDecl = F->FileSortedDecls + Record[6]; + unsigned NumFileDecls = Record[7]; if (NumFileDecls) { assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?"); FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl, @@ -1157,23 +946,24 @@ ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) { if (RecCode != SM_SLOC_BUFFER_BLOB) { Error("AST record has invalid code"); - return Failure; + return true; } llvm::MemoryBuffer *Buffer = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1), - Filename); + File->getName()); SourceMgr.overrideFileContents(File, Buffer); } - if (Result == Failure) - return Failure; break; } case SM_SLOC_BUFFER_ENTRY: { const char *Name = BlobStart; unsigned Offset = Record[0]; + SrcMgr::CharacteristicKind + FileCharacter = (SrcMgr::CharacteristicKind)Record[2]; + SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]); unsigned Code = SLocEntryCursor.ReadCode(); Record.clear(); unsigned RecCode @@ -1181,23 +971,14 @@ ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) { if (RecCode != SM_SLOC_BUFFER_BLOB) { Error("AST record has invalid code"); - return Failure; + return true; } llvm::MemoryBuffer *Buffer = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1), Name); - FileID BufferID = SourceMgr.createFileIDForMemBuffer(Buffer, ID, - BaseOffset + Offset); - - if (strcmp(Name, "<built-in>") == 0 && F->Kind == MK_PCH) { - PCHPredefinesBlock Block = { - BufferID, - StringRef(BlobStart, BlobLen - 1) - }; - PCHPredefinesBuffers.push_back(Block); - } - + SourceMgr.createFileIDForMemBuffer(Buffer, FileCharacter, ID, + BaseOffset + Offset, IncludeLoc); break; } @@ -1213,7 +994,7 @@ ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) { } } - return Success; + return false; } /// \brief Find the location where the module F is imported. @@ -1258,7 +1039,8 @@ bool ASTReader::ReadBlockAbbrevs(llvm::BitstreamCursor &Cursor, } } -void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) { +void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset, + MacroInfo *Hint) { llvm::BitstreamCursor &Stream = F.MacroCursor; // Keep track of where we are in the stream, then jump back there @@ -1270,6 +1052,24 @@ void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) { SmallVector<IdentifierInfo*, 16> MacroArgs; MacroInfo *Macro = 0; + // RAII object to add the loaded macro information once we're done + // adding tokens. + struct AddLoadedMacroInfoRAII { + Preprocessor &PP; + MacroInfo *Hint; + MacroInfo *MI; + IdentifierInfo *II; + + AddLoadedMacroInfoRAII(Preprocessor &PP, MacroInfo *Hint) + : PP(PP), Hint(Hint), MI(), II() { } + ~AddLoadedMacroInfoRAII( ) { + if (MI) { + // Finally, install the macro. + PP.addLoadedMacroInfo(II, MI, Hint); + } + } + } AddLoadedMacroInfo(PP, Hint); + while (true) { unsigned Code = Stream.ReadCode(); switch (Code) { @@ -1312,18 +1112,31 @@ void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) { Error("macro must have a name in AST file"); return; } - - SourceLocation Loc = ReadSourceLocation(F, Record[1]); - bool isUsed = Record[2]; + unsigned GlobalID = getGlobalMacroID(F, Record[1]); + + // If this macro has already been loaded, don't do so again. + if (MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS]) + return; + + SubmoduleID GlobalSubmoduleID = getGlobalSubmoduleID(F, Record[2]); + unsigned NextIndex = 3; + SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex); MacroInfo *MI = PP.AllocateMacroInfo(Loc); - MI->setIsUsed(isUsed); + + // Record this macro. + MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS] = MI; + + SourceLocation UndefLoc = ReadSourceLocation(F, Record, NextIndex); + if (UndefLoc.isValid()) + MI->setUndefLoc(UndefLoc); + + MI->setIsUsed(Record[NextIndex++]); MI->setIsFromAST(); - bool IsPublic = Record[3]; - unsigned NextIndex = 4; + bool IsPublic = Record[NextIndex++]; MI->setVisibility(IsPublic, ReadSourceLocation(F, Record, NextIndex)); - + if (RecType == PP_MACRO_FUNCTION_LIKE) { // Decode function-like macro info. bool isC99VarArgs = Record[NextIndex++]; @@ -1341,8 +1154,60 @@ void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset) { PP.getPreprocessorAllocator()); } - // Finally, install the macro. - PP.setMacroInfo(II, MI, /*LoadedFromAST=*/true); + if (DeserializationListener) + DeserializationListener->MacroRead(GlobalID, MI); + + // If an update record marked this as undefined, do so now. + // FIXME: Only if the submodule this update came from is visible? + MacroUpdatesMap::iterator Update = MacroUpdates.find(GlobalID); + if (Update != MacroUpdates.end()) { + if (MI->getUndefLoc().isInvalid()) { + for (unsigned I = 0, N = Update->second.size(); I != N; ++I) { + bool Hidden = false; + if (unsigned SubmoduleID = Update->second[I].first) { + if (Module *Owner = getSubmodule(SubmoduleID)) { + if (Owner->NameVisibility == Module::Hidden) { + // Note that this #undef is hidden. + Hidden = true; + + // Record this hiding for later. + HiddenNamesMap[Owner].push_back( + HiddenName(II, MI, Update->second[I].second.UndefLoc)); + } + } + } + + if (!Hidden) { + MI->setUndefLoc(Update->second[I].second.UndefLoc); + if (PPMutationListener *Listener = PP.getPPMutationListener()) + Listener->UndefinedMacro(MI); + break; + } + } + } + MacroUpdates.erase(Update); + } + + // Determine whether this macro definition is visible. + bool Hidden = !MI->isPublic(); + if (!Hidden && GlobalSubmoduleID) { + if (Module *Owner = getSubmodule(GlobalSubmoduleID)) { + if (Owner->NameVisibility == Module::Hidden) { + // The owning module is not visible, and this macro definition + // should not be, either. + Hidden = true; + + // Note that this macro definition was hidden because its owning + // module is not yet visible. + HiddenNamesMap[Owner].push_back(HiddenName(II, MI)); + } + } + } + MI->setHidden(Hidden); + + // Make sure we install the macro once we're done. + AddLoadedMacroInfo.MI = MI; + AddLoadedMacroInfo.II = II; // Remember that we saw this macro last so that we add the tokens that // form its body to it. @@ -1451,18 +1316,16 @@ HeaderFileInfoTrait::ReadData(const internal_key_type, const unsigned char *d, return HFI; } -void ASTReader::setIdentifierIsMacro(IdentifierInfo *II, ModuleFile &F, - uint64_t LocalOffset, bool Visible) { - if (Visible) { - // Note that this identifier has a macro definition. - II->setHasMacroDefinition(true); - } - - // Adjust the offset to a global offset. - UnreadMacroRecordOffsets[II] = F.GlobalBitOffset + LocalOffset; +void ASTReader::setIdentifierIsMacro(IdentifierInfo *II, ArrayRef<MacroID> IDs){ + II->setHadMacroDefinition(true); + assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard"); + PendingMacroIDs[II].append(IDs.begin(), IDs.end()); } void ASTReader::ReadDefinedMacros() { + // Note that we are loading defined macros. + Deserializing Macros(this); + for (ModuleReverseIterator I = ModuleMgr.rbegin(), E = ModuleMgr.rend(); I != E; ++I) { llvm::BitstreamCursor &MacroCursor = (*I)->MacroCursor; @@ -1514,26 +1377,6 @@ void ASTReader::ReadDefinedMacros() { } } } - - // Drain the unread macro-record offsets map. - while (!UnreadMacroRecordOffsets.empty()) - LoadMacroDefinition(UnreadMacroRecordOffsets.begin()); -} - -void ASTReader::LoadMacroDefinition( - llvm::DenseMap<IdentifierInfo *, uint64_t>::iterator Pos) { - assert(Pos != UnreadMacroRecordOffsets.end() && "Unknown macro definition"); - uint64_t Offset = Pos->second; - UnreadMacroRecordOffsets.erase(Pos); - - RecordLocation Loc = getLocalBitOffset(Offset); - ReadMacroRecord(*Loc.F, Loc.Offset); -} - -void ASTReader::LoadMacroDefinition(IdentifierInfo *II) { - llvm::DenseMap<IdentifierInfo *, uint64_t>::iterator Pos - = UnreadMacroRecordOffsets.find(II); - LoadMacroDefinition(Pos); } namespace { @@ -1582,6 +1425,9 @@ namespace { } void ASTReader::updateOutOfDateIdentifier(IdentifierInfo &II) { + // Note that we are loading an identifier. + Deserializing AnIdentifier(this); + unsigned PriorGeneration = 0; if (getContext().getLangOpts().Modules) PriorGeneration = IdentifierGeneration[&II]; @@ -1602,14 +1448,132 @@ void ASTReader::markIdentifierUpToDate(IdentifierInfo *II) { IdentifierGeneration[II] = CurrentGeneration; } +llvm::PointerIntPair<const FileEntry *, 1, bool> +ASTReader::getInputFile(ModuleFile &F, unsigned ID, bool Complain) { + // If this ID is bogus, just return an empty input file. + if (ID == 0 || ID > F.InputFilesLoaded.size()) + return InputFile(); + + // If we've already loaded this input file, return it. + if (F.InputFilesLoaded[ID-1].getPointer()) + return F.InputFilesLoaded[ID-1]; + + // Go find this input file. + llvm::BitstreamCursor &Cursor = F.InputFilesCursor; + SavedStreamPosition SavedPosition(Cursor); + Cursor.JumpToBit(F.InputFileOffsets[ID-1]); + + unsigned Code = Cursor.ReadCode(); + RecordData Record; + const char *BlobStart = 0; + unsigned BlobLen = 0; + switch ((InputFileRecordTypes)Cursor.ReadRecord(Code, Record, + &BlobStart, &BlobLen)) { + case INPUT_FILE: { + unsigned StoredID = Record[0]; + assert(ID == StoredID && "Bogus stored ID or offset"); + (void)StoredID; + off_t StoredSize = (off_t)Record[1]; + time_t StoredTime = (time_t)Record[2]; + bool Overridden = (bool)Record[3]; + + // Get the file entry for this input file. + StringRef OrigFilename(BlobStart, BlobLen); + std::string Filename = OrigFilename; + MaybeAddSystemRootToFilename(F, Filename); + const FileEntry *File + = Overridden? FileMgr.getVirtualFile(Filename, StoredSize, StoredTime) + : FileMgr.getFile(Filename, /*OpenFile=*/false); + + // If we didn't find the file, resolve it relative to the + // original directory from which this AST file was created. + if (File == 0 && !F.OriginalDir.empty() && !CurrentDir.empty() && + F.OriginalDir != CurrentDir) { + std::string Resolved = resolveFileRelativeToOriginalDir(Filename, + F.OriginalDir, + CurrentDir); + if (!Resolved.empty()) + File = FileMgr.getFile(Resolved); + } + + // For an overridden file, create a virtual file with the stored + // size/timestamp. + if (Overridden && File == 0) { + File = FileMgr.getVirtualFile(Filename, StoredSize, StoredTime); + } + + if (File == 0) { + if (Complain) { + std::string ErrorStr = "could not find file '"; + ErrorStr += Filename; + ErrorStr += "' referenced by AST file"; + Error(ErrorStr.c_str()); + } + return InputFile(); + } + + // Note that we've loaded this input file. + F.InputFilesLoaded[ID-1] = InputFile(File, Overridden); + + // Check if there was a request to override the contents of the file + // that was part of the precompiled header. Overridding such a file + // can lead to problems when lexing using the source locations from the + // PCH. + SourceManager &SM = getSourceManager(); + if (!Overridden && SM.isFileOverridden(File)) { + Error(diag::err_fe_pch_file_overridden, Filename); + // After emitting the diagnostic, recover by disabling the override so + // that the original file will be used. + SM.disableFileContentsOverride(File); + // The FileEntry is a virtual file entry with the size of the contents + // that would override the original contents. Set it to the original's + // size/time. + FileMgr.modifyFileEntry(const_cast<FileEntry*>(File), + StoredSize, StoredTime); + } + + // For an overridden file, there is nothing to validate. + if (Overridden) + return InputFile(File, Overridden); + + // The stat info from the FileEntry came from the cached stat + // info of the PCH, so we cannot trust it. + struct stat StatBuf; + if (::stat(File->getName(), &StatBuf) != 0) { + StatBuf.st_size = File->getSize(); + StatBuf.st_mtime = File->getModificationTime(); + } + + if ((StoredSize != StatBuf.st_size +#if !defined(LLVM_ON_WIN32) + // In our regression testing, the Windows file system seems to + // have inconsistent modification times that sometimes + // erroneously trigger this error-handling path. + || StoredTime != StatBuf.st_mtime +#endif + )) { + if (Complain) + Error(diag::err_fe_pch_file_modified, Filename); + + return InputFile(); + } + + return InputFile(File, Overridden); + } + } + + return InputFile(); +} + const FileEntry *ASTReader::getFileEntry(StringRef filenameStrRef) { + ModuleFile &M = ModuleMgr.getPrimaryModule(); std::string Filename = filenameStrRef; - MaybeAddSystemRootToFilename(Filename); + MaybeAddSystemRootToFilename(M, Filename); const FileEntry *File = FileMgr.getFile(Filename); - if (File == 0 && !OriginalDir.empty() && !CurrentDir.empty() && - OriginalDir != CurrentDir) { + if (File == 0 && !M.OriginalDir.empty() && !CurrentDir.empty() && + M.OriginalDir != CurrentDir) { std::string resolved = resolveFileRelativeToOriginalDir(Filename, - OriginalDir, + M.OriginalDir, CurrentDir); if (!resolved.empty()) File = FileMgr.getFile(resolved); @@ -1621,9 +1585,10 @@ const FileEntry *ASTReader::getFileEntry(StringRef filenameStrRef) { /// \brief If we are loading a relocatable PCH file, and the filename is /// not an absolute path, add the system root to the beginning of the file /// name. -void ASTReader::MaybeAddSystemRootToFilename(std::string &Filename) { +void ASTReader::MaybeAddSystemRootToFilename(ModuleFile &M, + std::string &Filename) { // If this is not a relocatable PCH file, there's nothing to do. - if (!RelocatablePCH) + if (!M.RelocatablePCH) return; if (Filename.empty() || llvm::sys::path::is_absolute(Filename)) @@ -1643,29 +1608,226 @@ void ASTReader::MaybeAddSystemRootToFilename(std::string &Filename) { } ASTReader::ASTReadResult -ASTReader::ReadASTBlock(ModuleFile &F) { +ASTReader::ReadControlBlock(ModuleFile &F, + llvm::SmallVectorImpl<ModuleFile *> &Loaded, + unsigned ClientLoadCapabilities) { llvm::BitstreamCursor &Stream = F.Stream; - if (Stream.EnterSubBlock(AST_BLOCK_ID)) { + if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { Error("malformed block record in AST file"); return Failure; } - // Read all of the records and blocks for the ASt file. + // Read all of the records and blocks in the control block. RecordData Record; while (!Stream.AtEndOfStream()) { unsigned Code = Stream.ReadCode(); if (Code == llvm::bitc::END_BLOCK) { if (Stream.ReadBlockEnd()) { - Error("error at end of module block in AST file"); + Error("error at end of control block in AST file"); return Failure; } + // Validate all of the input files. + if (!DisableValidation) { + bool Complain = (ClientLoadCapabilities & ARR_OutOfDate) == 0; + for (unsigned I = 0, N = Record[0]; I < N; ++I) + if (!getInputFile(F, I+1, Complain).getPointer()) + return OutOfDate; + } + return Success; } if (Code == llvm::bitc::ENTER_SUBBLOCK) { switch (Stream.ReadSubBlockID()) { + case INPUT_FILES_BLOCK_ID: + F.InputFilesCursor = Stream; + if (Stream.SkipBlock() || // Skip with the main cursor + // Read the abbreviations + ReadBlockAbbrevs(F.InputFilesCursor, INPUT_FILES_BLOCK_ID)) { + Error("malformed block record in AST file"); + return Failure; + } + continue; + + default: + if (!Stream.SkipBlock()) + continue; + break; + } + + Error("malformed block record in AST file"); + return Failure; + } + + if (Code == llvm::bitc::DEFINE_ABBREV) { + Stream.ReadAbbrevRecord(); + continue; + } + + // Read and process a record. + Record.clear(); + const char *BlobStart = 0; + unsigned BlobLen = 0; + switch ((ControlRecordTypes)Stream.ReadRecord(Code, Record, + &BlobStart, &BlobLen)) { + case METADATA: { + if (Record[0] != VERSION_MAJOR && !DisableValidation) { + if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) + Diag(Record[0] < VERSION_MAJOR? diag::warn_pch_version_too_old + : diag::warn_pch_version_too_new); + return VersionMismatch; + } + + bool hasErrors = Record[5]; + if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) { + Diag(diag::err_pch_with_compiler_errors); + return HadErrors; + } + + F.RelocatablePCH = Record[4]; + + const std::string &CurBranch = getClangFullRepositoryVersion(); + StringRef ASTBranch(BlobStart, BlobLen); + if (StringRef(CurBranch) != ASTBranch && !DisableValidation) { + if ((ClientLoadCapabilities & ARR_VersionMismatch) == 0) + Diag(diag::warn_pch_different_branch) << ASTBranch << CurBranch; + return VersionMismatch; + } + break; + } + + case IMPORTS: { + // Load each of the imported PCH files. + unsigned Idx = 0, N = Record.size(); + while (Idx < N) { + // Read information about the AST file. + ModuleKind ImportedKind = (ModuleKind)Record[Idx++]; + unsigned Length = Record[Idx++]; + SmallString<128> ImportedFile(Record.begin() + Idx, + Record.begin() + Idx + Length); + Idx += Length; + + // Load the AST file. + switch(ReadASTCore(ImportedFile, ImportedKind, &F, Loaded, + ClientLoadCapabilities)) { + case Failure: return Failure; + // If we have to ignore the dependency, we'll have to ignore this too. + case OutOfDate: return OutOfDate; + case VersionMismatch: return VersionMismatch; + case ConfigurationMismatch: return ConfigurationMismatch; + case HadErrors: return HadErrors; + case Success: break; + } + } + break; + } + + case LANGUAGE_OPTIONS: { + bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch) == 0; + if (Listener && &F == *ModuleMgr.begin() && + ParseLanguageOptions(Record, Complain, *Listener) && + !DisableValidation) + return ConfigurationMismatch; + break; + } + + case TARGET_OPTIONS: { + bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; + if (Listener && &F == *ModuleMgr.begin() && + ParseTargetOptions(Record, Complain, *Listener) && + !DisableValidation) + return ConfigurationMismatch; + break; + } + + case DIAGNOSTIC_OPTIONS: { + bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; + if (Listener && &F == *ModuleMgr.begin() && + ParseDiagnosticOptions(Record, Complain, *Listener) && + !DisableValidation) + return ConfigurationMismatch; + break; + } + + case FILE_SYSTEM_OPTIONS: { + bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; + if (Listener && &F == *ModuleMgr.begin() && + ParseFileSystemOptions(Record, Complain, *Listener) && + !DisableValidation) + return ConfigurationMismatch; + break; + } + + case HEADER_SEARCH_OPTIONS: { + bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; + if (Listener && &F == *ModuleMgr.begin() && + ParseHeaderSearchOptions(Record, Complain, *Listener) && + !DisableValidation) + return ConfigurationMismatch; + break; + } + + case PREPROCESSOR_OPTIONS: { + bool Complain = (ClientLoadCapabilities & ARR_ConfigurationMismatch)==0; + if (Listener && &F == *ModuleMgr.begin() && + ParsePreprocessorOptions(Record, Complain, *Listener, + SuggestedPredefines) && + !DisableValidation) + return ConfigurationMismatch; + break; + } + + case ORIGINAL_FILE: + F.OriginalSourceFileID = FileID::get(Record[0]); + F.ActualOriginalSourceFileName.assign(BlobStart, BlobLen); + F.OriginalSourceFileName = F.ActualOriginalSourceFileName; + MaybeAddSystemRootToFilename(F, F.OriginalSourceFileName); + break; + + case ORIGINAL_PCH_DIR: + F.OriginalDir.assign(BlobStart, BlobLen); + break; + + case INPUT_FILE_OFFSETS: + F.InputFileOffsets = (const uint32_t *)BlobStart; + F.InputFilesLoaded.resize(Record[0]); + break; + } + } + + Error("premature end of bitstream in AST file"); + return Failure; +} + +bool ASTReader::ReadASTBlock(ModuleFile &F) { + llvm::BitstreamCursor &Stream = F.Stream; + + if (Stream.EnterSubBlock(AST_BLOCK_ID)) { + Error("malformed block record in AST file"); + return true; + } + + // Read all of the records and blocks for the AST file. + RecordData Record; + while (!Stream.AtEndOfStream()) { + unsigned Code = Stream.ReadCode(); + if (Code == llvm::bitc::END_BLOCK) { + if (Stream.ReadBlockEnd()) { + Error("error at end of module block in AST file"); + return true; + } + + DeclContext *DC = Context.getTranslationUnitDecl(); + if (!DC->hasExternalVisibleStorage() && DC->hasExternalLexicalStorage()) + DC->setMustBuildLookupTable(); + + return false; + } + + if (Code == llvm::bitc::ENTER_SUBBLOCK) { + switch (Stream.ReadSubBlockID()) { case DECLTYPES_BLOCK_ID: // We lazily load the decls block, but we want to set up the // DeclsCursor cursor to point into it. Clone our current bitcode @@ -1676,14 +1838,14 @@ ASTReader::ReadASTBlock(ModuleFile &F) { // Read the abbrevs. ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) { Error("malformed block record in AST file"); - return Failure; + return true; } break; case DECL_UPDATES_BLOCK_ID: if (Stream.SkipBlock()) { Error("malformed block record in AST file"); - return Failure; + return true; } break; @@ -1695,7 +1857,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { if (Stream.SkipBlock() || ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) { Error("malformed block record in AST file"); - return Failure; + return true; } F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo(); break; @@ -1706,7 +1868,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { ReadBlockAbbrevs(F.PreprocessorDetailCursor, PREPROCESSOR_DETAIL_BLOCK_ID)) { Error("malformed preprocessor detail record in AST file"); - return Failure; + return true; } F.PreprocessorDetailStartOffset = F.PreprocessorDetailCursor.GetCurrentBitNo(); @@ -1718,31 +1880,13 @@ ASTReader::ReadASTBlock(ModuleFile &F) { break; case SOURCE_MANAGER_BLOCK_ID: - switch (ReadSourceManagerBlock(F)) { - case Success: - break; - - case Failure: - Error("malformed source manager block in AST file"); - return Failure; - - case IgnorePCH: - return IgnorePCH; - } + if (ReadSourceManagerBlock(F)) + return true; break; case SUBMODULE_BLOCK_ID: - switch (ReadSubmoduleBlock(F)) { - case Success: - break; - - case Failure: - Error("malformed submodule block in AST file"); - return Failure; - - case IgnorePCH: - return IgnorePCH; - } + if (ReadSubmoduleBlock(F)) + return true; break; case COMMENTS_BLOCK_ID: { @@ -1750,7 +1894,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { if (Stream.SkipBlock() || ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) { Error("malformed comments block in AST file"); - return Failure; + return true; } CommentsCursors.push_back(std::make_pair(C, &F)); break; @@ -1760,7 +1904,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { if (!Stream.SkipBlock()) break; Error("malformed block record in AST file"); - return Failure; + return true; } continue; } @@ -1779,54 +1923,10 @@ ASTReader::ReadASTBlock(ModuleFile &F) { default: // Default behavior: ignore. break; - case METADATA: { - if (Record[0] != VERSION_MAJOR && !DisableValidation) { - Diag(Record[0] < VERSION_MAJOR? diag::warn_pch_version_too_old - : diag::warn_pch_version_too_new); - return IgnorePCH; - } - - bool hasErrors = Record[5]; - if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) { - Diag(diag::err_pch_with_compiler_errors); - return IgnorePCH; - } - - RelocatablePCH = Record[4]; - if (Listener) { - std::string TargetTriple(BlobStart, BlobLen); - if (Listener->ReadTargetTriple(TargetTriple)) - return IgnorePCH; - } - break; - } - - case IMPORTS: { - // Load each of the imported PCH files. - unsigned Idx = 0, N = Record.size(); - while (Idx < N) { - // Read information about the AST file. - ModuleKind ImportedKind = (ModuleKind)Record[Idx++]; - unsigned Length = Record[Idx++]; - SmallString<128> ImportedFile(Record.begin() + Idx, - Record.begin() + Idx + Length); - Idx += Length; - - // Load the AST file. - switch(ReadASTCore(ImportedFile, ImportedKind, &F)) { - case Failure: return Failure; - // If we have to ignore the dependency, we'll have to ignore this too. - case IgnorePCH: return IgnorePCH; - case Success: break; - } - } - break; - } - case TYPE_OFFSET: { if (F.LocalNumTypes != 0) { Error("duplicate TYPE_OFFSET record in AST file"); - return Failure; + return true; } F.TypeOffsets = (const uint32_t *)BlobStart; F.LocalNumTypes = Record[0]; @@ -1850,7 +1950,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case DECL_OFFSET: { if (F.LocalNumDecls != 0) { Error("duplicate DECL_OFFSET record in AST file"); - return Failure; + return true; } F.DeclOffsets = (const DeclOffset *)BlobStart; F.LocalNumDecls = Record[0]; @@ -1904,11 +2004,6 @@ ASTReader::ReadASTBlock(ModuleFile &F) { break; } - case LANGUAGE_OPTIONS: - if (ParseLanguageOptions(Record) && !DisableValidation) - return IgnorePCH; - break; - case IDENTIFIER_TABLE: F.IdentifierTableData = BlobStart; if (Record[0]) { @@ -1925,7 +2020,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case IDENTIFIER_OFFSET: { if (F.LocalNumIdentifiers != 0) { Error("duplicate IDENTIFIER_OFFSET record in AST file"); - return Failure; + return true; } F.IdentifierOffsets = (const uint32_t *)BlobStart; F.LocalNumIdentifiers = Record[0]; @@ -1949,7 +2044,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { } break; } - + case EXTERNAL_DEFINITIONS: for (unsigned I = 0, N = Record.size(); I != N; ++I) ExternalDefinitions.push_back(getGlobalDeclID(F, Record[I])); @@ -1980,7 +2075,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case WEAK_UNDECLARED_IDENTIFIERS: if (Record.size() % 4 != 0) { Error("invalid weak identifiers record"); - return Failure; + return true; } // FIXME: Ignore weak undeclared identifiers from non-original PCH @@ -2050,11 +2145,12 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case PP_COUNTER_VALUE: if (!Record.empty() && Listener) - Listener->ReadCounter(Record[0]); + Listener->ReadCounter(F, Record[0]); break; case FILE_SORTED_DECLS: F.FileSortedDecls = (const DeclID *)BlobStart; + F.NumFileSortedDecls = Record[0]; break; case SOURCE_LOCATION_OFFSETS: { @@ -2098,7 +2194,9 @@ ASTReader::ReadASTBlock(ModuleFile &F) { ContinuousRangeMap<uint32_t, int, 2>::Builder SLocRemap(F.SLocRemap); ContinuousRangeMap<uint32_t, int, 2>::Builder IdentifierRemap(F.IdentifierRemap); - ContinuousRangeMap<uint32_t, int, 2>::Builder + ContinuousRangeMap<uint32_t, int, 2>::Builder + MacroRemap(F.MacroRemap); + ContinuousRangeMap<uint32_t, int, 2>::Builder PreprocessedEntityRemap(F.PreprocessedEntityRemap); ContinuousRangeMap<uint32_t, int, 2>::Builder SubmoduleRemap(F.SubmoduleRemap); @@ -2114,11 +2212,12 @@ ASTReader::ReadASTBlock(ModuleFile &F) { ModuleFile *OM = ModuleMgr.lookup(Name); if (!OM) { Error("SourceLocation remap refers to unknown module"); - return Failure; + return true; } uint32_t SLocOffset = io::ReadUnalignedLE32(Data); uint32_t IdentifierIDOffset = io::ReadUnalignedLE32(Data); + uint32_t MacroIDOffset = io::ReadUnalignedLE32(Data); uint32_t PreprocessedEntityIDOffset = io::ReadUnalignedLE32(Data); uint32_t SubmoduleIDOffset = io::ReadUnalignedLE32(Data); uint32_t SelectorIDOffset = io::ReadUnalignedLE32(Data); @@ -2131,6 +2230,8 @@ ASTReader::ReadASTBlock(ModuleFile &F) { IdentifierRemap.insert( std::make_pair(IdentifierIDOffset, OM->BaseIdentifierID - IdentifierIDOffset)); + MacroRemap.insert(std::make_pair(MacroIDOffset, + OM->BaseMacroID - MacroIDOffset)); PreprocessedEntityRemap.insert( std::make_pair(PreprocessedEntityIDOffset, OM->BasePreprocessedEntityID - PreprocessedEntityIDOffset)); @@ -2152,12 +2253,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case SOURCE_MANAGER_LINE_TABLE: if (ParseLineTable(F, Record)) - return Failure; - break; - - case FILE_SOURCE_LOCATION_OFFSETS: - F.SLocFileOffsets = (const uint32_t *)BlobStart; - F.LocalNumSLocFileEntries = Record[0]; + return true; break; case SOURCE_LOCATION_PRELOADS: { @@ -2165,25 +2261,13 @@ ASTReader::ReadASTBlock(ModuleFile &F) { // which is based off F.SLocEntryBaseID. if (!F.PreloadSLocEntries.empty()) { Error("Multiple SOURCE_LOCATION_PRELOADS records in AST file"); - return Failure; + return true; } F.PreloadSLocEntries.swap(Record); break; } - case STAT_CACHE: { - if (!DisableStatCache) { - ASTStatCache *MyStatCache = - new ASTStatCache((const unsigned char *)BlobStart + Record[0], - (const unsigned char *)BlobStart, - NumStatHits, NumStatMisses); - FileMgr.addStatCache(MyStatCache); - F.StatCache = MyStatCache; - } - break; - } - case EXT_VECTOR_DECLS: for (unsigned I = 0, N = Record.size(); I != N; ++I) ExtVectorDecls.push_back(getGlobalDeclID(F, Record[I])); @@ -2192,7 +2276,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case VTABLE_USES: if (Record.size() % 3 != 0) { Error("Invalid VTABLE_USES record"); - return Failure; + return true; } // Later tables overwrite earlier ones. @@ -2215,13 +2299,15 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case PENDING_IMPLICIT_INSTANTIATIONS: if (PendingInstantiations.size() % 2 != 0) { + Error("Invalid existing PendingInstantiations"); + return true; + } + + if (Record.size() % 2 != 0) { Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block"); - return Failure; + return true; } - - // Later lists of pending instantiations overwrite earlier ones. - // FIXME: This is most certainly wrong for modules. - PendingInstantiations.clear(); + for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { PendingInstantiations.push_back(getGlobalDeclID(F, Record[I++])); PendingInstantiations.push_back( @@ -2237,34 +2323,6 @@ ASTReader::ReadASTBlock(ModuleFile &F) { SemaDeclRefs.push_back(getGlobalDeclID(F, Record[I])); break; - case ORIGINAL_FILE_NAME: - // The primary AST will be the last to get here, so it will be the one - // that's used. - ActualOriginalFileName.assign(BlobStart, BlobLen); - OriginalFileName = ActualOriginalFileName; - MaybeAddSystemRootToFilename(OriginalFileName); - break; - - case ORIGINAL_FILE_ID: - OriginalFileID = FileID::get(Record[0]); - break; - - case ORIGINAL_PCH_DIR: - // The primary AST will be the last to get here, so it will be the one - // that's used. - OriginalDir.assign(BlobStart, BlobLen); - break; - - case VERSION_CONTROL_BRANCH_REVISION: { - const std::string &CurBranch = getClangFullRepositoryVersion(); - StringRef ASTBranch(BlobStart, BlobLen); - if (StringRef(CurBranch) != ASTBranch && !DisableValidation) { - Diag(diag::warn_pch_different_branch) << ASTBranch << CurBranch; - return IgnorePCH; - } - break; - } - case PPD_ENTITIES_OFFSETS: { F.PreprocessedEntityOffsets = (const PPEntityOffset *)BlobStart; assert(BlobLen % sizeof(PPEntityOffset) == 0); @@ -2300,7 +2358,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case DECL_UPDATE_OFFSETS: { if (Record.size() % 2 != 0) { Error("invalid DECL_UPDATE_OFFSETS block in AST file"); - return Failure; + return true; } for (unsigned I = 0, N = Record.size(); I != N; I += 2) DeclUpdateOffsets[getGlobalDeclID(F, Record[I])] @@ -2311,7 +2369,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case DECL_REPLACEMENTS: { if (Record.size() % 3 != 0) { Error("invalid DECL_REPLACEMENTS block in AST file"); - return Failure; + return true; } for (unsigned I = 0, N = Record.size(); I != N; I += 3) ReplacedDecls[getGlobalDeclID(F, Record[I])] @@ -2322,7 +2380,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case OBJC_CATEGORIES_MAP: { if (F.LocalNumObjCCategoriesInMap != 0) { Error("duplicate OBJC_CATEGORIES_MAP record in AST file"); - return Failure; + return true; } F.LocalNumObjCCategoriesInMap = Record[0]; @@ -2337,7 +2395,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case CXX_BASE_SPECIFIER_OFFSETS: { if (F.LocalNumCXXBaseSpecifiers != 0) { Error("duplicate CXX_BASE_SPECIFIER_OFFSETS record in AST file"); - return Failure; + return true; } F.LocalNumCXXBaseSpecifiers = Record[0]; @@ -2347,11 +2405,6 @@ ASTReader::ReadASTBlock(ModuleFile &F) { } case DIAG_PRAGMA_MAPPINGS: - if (Record.size() % 2 != 0) { - Error("invalid DIAG_USER_MAPPINGS block in AST file"); - return Failure; - } - if (F.PragmaDiagMappings.empty()) F.PragmaDiagMappings.swap(Record); else @@ -2428,7 +2481,7 @@ ASTReader::ReadASTBlock(ModuleFile &F) { case LOCAL_REDECLARATIONS_MAP: { if (F.LocalNumRedeclarationsInMap != 0) { Error("duplicate LOCAL_REDECLARATIONS_MAP record in AST file"); - return Failure; + return true; } F.LocalNumRedeclarationsInMap = Record[0]; @@ -2445,113 +2498,77 @@ ASTReader::ReadASTBlock(ModuleFile &F) { } break; } - } - } - Error("premature end of bitstream in AST file"); - return Failure; -} - -ASTReader::ASTReadResult ASTReader::validateFileEntries(ModuleFile &M) { - llvm::BitstreamCursor &SLocEntryCursor = M.SLocEntryCursor; - - for (unsigned i = 0, e = M.LocalNumSLocFileEntries; i != e; ++i) { - SLocEntryCursor.JumpToBit(M.SLocFileOffsets[i]); - unsigned Code = SLocEntryCursor.ReadCode(); - if (Code == llvm::bitc::END_BLOCK || - Code == llvm::bitc::ENTER_SUBBLOCK || - Code == llvm::bitc::DEFINE_ABBREV) { - Error("incorrectly-formatted source location entry in AST file"); - return Failure; - } - RecordData Record; - const char *BlobStart; - unsigned BlobLen; - switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) { - default: - Error("incorrectly-formatted source location entry in AST file"); - return Failure; + case MACRO_OFFSET: { + if (F.LocalNumMacros != 0) { + Error("duplicate MACRO_OFFSET record in AST file"); + return true; + } + F.MacroOffsets = (const uint32_t *)BlobStart; + F.LocalNumMacros = Record[0]; + unsigned LocalBaseMacroID = Record[1]; + F.BaseMacroID = getTotalNumMacros(); - case SM_SLOC_FILE_ENTRY: { - // If the buffer was overridden, the file need not exist. - if (Record[6]) - break; - - StringRef Filename(BlobStart, BlobLen); - const FileEntry *File = getFileEntry(Filename); + if (F.LocalNumMacros > 0) { + // Introduce the global -> local mapping for macros within this module. + GlobalMacroMap.insert(std::make_pair(getTotalNumMacros() + 1, &F)); - if (File == 0) { - std::string ErrorStr = "could not find file '"; - ErrorStr += Filename; - ErrorStr += "' referenced by AST file"; - Error(ErrorStr.c_str()); - return IgnorePCH; - } + // Introduce the local -> global mapping for macros within this module. + F.MacroRemap.insertOrReplace( + std::make_pair(LocalBaseMacroID, + F.BaseMacroID - LocalBaseMacroID)); - if (Record.size() < 7) { - Error("source location entry is incorrect"); - return Failure; - } - - off_t StoredSize = (off_t)Record[4]; - time_t StoredTime = (time_t)Record[5]; - - // Check if there was a request to override the contents of the file - // that was part of the precompiled header. Overridding such a file - // can lead to problems when lexing using the source locations from the - // PCH. - SourceManager &SM = getSourceManager(); - if (SM.isFileOverridden(File)) { - Error(diag::err_fe_pch_file_overridden, Filename); - // After emitting the diagnostic, recover by disabling the override so - // that the original file will be used. - SM.disableFileContentsOverride(File); - // The FileEntry is a virtual file entry with the size of the contents - // that would override the original contents. Set it to the original's - // size/time. - FileMgr.modifyFileEntry(const_cast<FileEntry*>(File), - StoredSize, StoredTime); + MacrosLoaded.resize(MacrosLoaded.size() + F.LocalNumMacros); } + break; + } - // The stat info from the FileEntry came from the cached stat - // info of the PCH, so we cannot trust it. - struct stat StatBuf; - if (::stat(File->getName(), &StatBuf) != 0) { - StatBuf.st_size = File->getSize(); - StatBuf.st_mtime = File->getModificationTime(); - } + case MACRO_UPDATES: { + for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) { + MacroID ID = getGlobalMacroID(F, Record[I++]); + if (I == N) + break; - if ((StoredSize != StatBuf.st_size -#if !defined(LLVM_ON_WIN32) - // In our regression testing, the Windows file system seems to - // have inconsistent modification times that sometimes - // erroneously trigger this error-handling path. - || StoredTime != StatBuf.st_mtime -#endif - )) { - Error(diag::err_fe_pch_file_modified, Filename); - return IgnorePCH; + SourceLocation UndefLoc = ReadSourceLocation(F, Record, I); + SubmoduleID SubmoduleID = getGlobalSubmoduleID(F, Record[I++]);; + MacroUpdate Update; + Update.UndefLoc = UndefLoc; + MacroUpdates[ID].push_back(std::make_pair(SubmoduleID, Update)); } - break; } } } - - return Success; + Error("premature end of bitstream in AST file"); + return true; } void ASTReader::makeNamesVisible(const HiddenNames &Names) { for (unsigned I = 0, N = Names.size(); I != N; ++I) { - if (Decl *D = Names[I].dyn_cast<Decl *>()) - D->Hidden = false; - else { - IdentifierInfo *II = Names[I].get<IdentifierInfo *>(); - if (!II->hasMacroDefinition()) { - II->setHasMacroDefinition(true); - if (DeserializationListener) - DeserializationListener->MacroVisible(II); + switch (Names[I].getKind()) { + case HiddenName::Declaration: + Names[I].getDecl()->Hidden = false; + break; + + case HiddenName::MacroVisibility: { + std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro(); + Macro.second->setHidden(!Macro.second->isPublic()); + if (Macro.second->isDefined()) { + PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second); + } + break; + } + + case HiddenName::MacroUndef: { + std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro(); + if (Macro.second->isDefined()) { + Macro.second->setUndefLoc(Names[I].getMacroUndefLoc()); + if (PPMutationListener *Listener = PP.getPPMutationListener()) + Listener->UndefinedMacro(Macro.second); + PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second); } + break; + } } } } @@ -2631,7 +2648,7 @@ void ASTReader::makeModuleVisible(Module *Mod, for (unsigned I = 0, N = Mod->Imports.size(); I != N; ++I) { Module *Imported = Mod->Imports[I]; - if (Visited.count(Imported)) + if (!Visited.insert(Imported)) continue; bool Acceptable = UnrestrictedWildcard; @@ -2649,32 +2666,62 @@ void ASTReader::makeModuleVisible(Module *Mod, if (!Acceptable) continue; - Visited.insert(Imported); Stack.push_back(Imported); } } } ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName, - ModuleKind Type) { + ModuleKind Type, + unsigned ClientLoadCapabilities) { // Bump the generation number. unsigned PreviousGeneration = CurrentGeneration++; - - switch(ReadASTCore(FileName, Type, /*ImportedBy=*/0)) { - case Failure: return Failure; - case IgnorePCH: return IgnorePCH; - case Success: break; + + unsigned NumModules = ModuleMgr.size(); + llvm::SmallVector<ModuleFile *, 4> Loaded; + switch(ASTReadResult ReadResult = ReadASTCore(FileName, Type, + /*ImportedBy=*/0, Loaded, + ClientLoadCapabilities)) { + case Failure: + case OutOfDate: + case VersionMismatch: + case ConfigurationMismatch: + case HadErrors: + ModuleMgr.removeModules(ModuleMgr.begin() + NumModules, ModuleMgr.end()); + return ReadResult; + + case Success: + break; } // Here comes stuff that we only do once the entire chain is loaded. - // Check the predefines buffers. - if (!DisableValidation && Type == MK_PCH && - // FIXME: CheckPredefinesBuffers also sets the SuggestedPredefines; - // if DisableValidation is true, defines that were set on command-line - // but not in the PCH file will not be added to SuggestedPredefines. - CheckPredefinesBuffers()) - return IgnorePCH; + // Load the AST blocks of all of the modules that we loaded. + for (llvm::SmallVectorImpl<ModuleFile *>::iterator M = Loaded.begin(), + MEnd = Loaded.end(); + M != MEnd; ++M) { + ModuleFile &F = **M; + + // Read the AST block. + if (ReadASTBlock(F)) + return Failure; + + // Once read, set the ModuleFile bit base offset and update the size in + // bits of all files we've seen. + F.GlobalBitOffset = TotalModulesSizeInBits; + TotalModulesSizeInBits += F.SizeInBits; + GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F)); + + // Preload SLocEntries. + for (unsigned I = 0, N = F.PreloadSLocEntries.size(); I != N; ++I) { + int Index = int(F.PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID; + // Load it through the SourceManager and don't call ReadSLocEntry() + // directly because the entry may have already been loaded in which case + // calling ReadSLocEntry() directly would trigger an assertion in + // SourceManager. + SourceMgr.getLoadedSLocEntryByID(Index); + } + } // Mark all of the identifiers in the identifier table as being out of date, // so that various accessors know to check the loaded modules when the @@ -2707,17 +2754,19 @@ ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName, if (DeserializationListener) DeserializationListener->ReaderInitialized(this); - if (!OriginalFileID.isInvalid()) { - OriginalFileID = FileID::get(ModuleMgr.getPrimaryModule().SLocEntryBaseID - + OriginalFileID.getOpaqueValue() - 1); + ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule(); + if (!PrimaryModule.OriginalSourceFileID.isInvalid()) { + PrimaryModule.OriginalSourceFileID + = FileID::get(PrimaryModule.SLocEntryBaseID + + PrimaryModule.OriginalSourceFileID.getOpaqueValue() - 1); - // If this AST file is a precompiled preamble, then set the preamble file ID - // of the source manager to the file source file from which the preamble was - // built. + // If this AST file is a precompiled preamble, then set the + // preamble file ID of the source manager to the file source file + // from which the preamble was built. if (Type == MK_Preamble) { - SourceMgr.setPreambleFileID(OriginalFileID); + SourceMgr.setPreambleFileID(PrimaryModule.OriginalSourceFileID); } else if (Type == MK_MainFile) { - SourceMgr.setMainFileID(OriginalFileID); + SourceMgr.setMainFileID(PrimaryModule.OriginalSourceFileID); } } @@ -2732,9 +2781,12 @@ ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName, return Success; } -ASTReader::ASTReadResult ASTReader::ReadASTCore(StringRef FileName, - ModuleKind Type, - ModuleFile *ImportedBy) { +ASTReader::ASTReadResult +ASTReader::ReadASTCore(StringRef FileName, + ModuleKind Type, + ModuleFile *ImportedBy, + llvm::SmallVectorImpl<ModuleFile *> &Loaded, + unsigned ClientLoadCapabilities) { ModuleFile *M; bool NewModule; std::string ErrorStr; @@ -2785,7 +2837,7 @@ ASTReader::ASTReadResult ASTReader::ReadASTCore(StringRef FileName, unsigned BlockID = Stream.ReadSubBlockID(); - // We only know the AST subblock ID. + // We only know the control subblock ID. switch (BlockID) { case llvm::bitc::BLOCKINFO_BLOCK_ID: if (Stream.ReadBlockInfoBlock()) { @@ -2793,29 +2845,23 @@ ASTReader::ASTReadResult ASTReader::ReadASTCore(StringRef FileName, return Failure; } break; - case AST_BLOCK_ID: - switch (ReadASTBlock(F)) { + case CONTROL_BLOCK_ID: + switch (ReadControlBlock(F, Loaded, ClientLoadCapabilities)) { case Success: break; - case Failure: - return Failure; - - case IgnorePCH: - // FIXME: We could consider reading through to the end of this - // AST block, skipping subblocks, to see if there are other - // AST blocks elsewhere. - - // FIXME: We can't clear loaded slocentries anymore. - //SourceMgr.ClearPreallocatedSLocEntries(); - - // Remove the stat cache. - if (F.StatCache) - FileMgr.removeStatCache((ASTStatCache*)F.StatCache); - - return IgnorePCH; + case Failure: return Failure; + case OutOfDate: return OutOfDate; + case VersionMismatch: return VersionMismatch; + case ConfigurationMismatch: return ConfigurationMismatch; + case HadErrors: return HadErrors; } break; + case AST_BLOCK_ID: + // Record that we've loaded this module. + Loaded.push_back(M); + return Success; + default: if (Stream.SkipBlock()) { Error("malformed block record in AST file"); @@ -2825,32 +2871,6 @@ ASTReader::ASTReadResult ASTReader::ReadASTCore(StringRef FileName, } } - // Once read, set the ModuleFile bit base offset and update the size in - // bits of all files we've seen. - F.GlobalBitOffset = TotalModulesSizeInBits; - TotalModulesSizeInBits += F.SizeInBits; - GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F)); - - // Make sure that the files this module was built against are still available. - if (!DisableValidation) { - switch(validateFileEntries(*M)) { - case Failure: return Failure; - case IgnorePCH: return IgnorePCH; - case Success: break; - } - } - - // Preload SLocEntries. - for (unsigned I = 0, N = M->PreloadSLocEntries.size(); I != N; ++I) { - int Index = int(M->PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID; - // Load it through the SourceManager and don't call ReadSLocEntryRecord() - // directly because the entry may have already been loaded in which case - // calling ReadSLocEntryRecord() directly would trigger an assertion in - // SourceManager. - SourceMgr.getLoadedSLocEntryByID(Index); - } - - return Success; } @@ -3038,8 +3058,8 @@ std::string ASTReader::getOriginalSourceFile(const std::string &ASTFileName, // We only know the AST subblock ID. switch (BlockID) { - case AST_BLOCK_ID: - if (Stream.EnterSubBlock(AST_BLOCK_ID)) { + case CONTROL_BLOCK_ID: + if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName; return std::string(); } @@ -3071,19 +3091,191 @@ std::string ASTReader::getOriginalSourceFile(const std::string &ASTFileName, Record.clear(); const char *BlobStart = 0; unsigned BlobLen = 0; - if (Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen) - == ORIGINAL_FILE_NAME) + if (Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen) == ORIGINAL_FILE) return std::string(BlobStart, BlobLen); } return std::string(); } -ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { +namespace { + class SimplePCHValidator : public ASTReaderListener { + const LangOptions &ExistingLangOpts; + const TargetOptions &ExistingTargetOpts; + const PreprocessorOptions &ExistingPPOpts; + FileManager &FileMgr; + + public: + SimplePCHValidator(const LangOptions &ExistingLangOpts, + const TargetOptions &ExistingTargetOpts, + const PreprocessorOptions &ExistingPPOpts, + FileManager &FileMgr) + : ExistingLangOpts(ExistingLangOpts), + ExistingTargetOpts(ExistingTargetOpts), + ExistingPPOpts(ExistingPPOpts), + FileMgr(FileMgr) + { + } + + virtual bool ReadLanguageOptions(const LangOptions &LangOpts, + bool Complain) { + return checkLanguageOptions(ExistingLangOpts, LangOpts, 0); + } + virtual bool ReadTargetOptions(const TargetOptions &TargetOpts, + bool Complain) { + return checkTargetOptions(ExistingTargetOpts, TargetOpts, 0); + } + virtual bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, + bool Complain, + std::string &SuggestedPredefines) { + return checkPreprocessorOptions(ExistingPPOpts, PPOpts, 0, FileMgr, + SuggestedPredefines); + } + }; +} + +bool ASTReader::readASTFileControlBlock(StringRef Filename, + FileManager &FileMgr, + ASTReaderListener &Listener) { + // Open the AST file. + std::string ErrStr; + OwningPtr<llvm::MemoryBuffer> Buffer; + Buffer.reset(FileMgr.getBufferForFile(Filename, &ErrStr)); + if (!Buffer) { + return true; + } + + // Initialize the stream + llvm::BitstreamReader StreamFile; + llvm::BitstreamCursor Stream; + StreamFile.init((const unsigned char *)Buffer->getBufferStart(), + (const unsigned char *)Buffer->getBufferEnd()); + Stream.init(StreamFile); + + // Sniff for the signature. + if (Stream.Read(8) != 'C' || + Stream.Read(8) != 'P' || + Stream.Read(8) != 'C' || + Stream.Read(8) != 'H') { + return true; + } + + RecordData Record; + bool InControlBlock = false; + while (!Stream.AtEndOfStream()) { + unsigned Code = Stream.ReadCode(); + + if (Code == llvm::bitc::ENTER_SUBBLOCK) { + unsigned BlockID = Stream.ReadSubBlockID(); + + // We only know the control subblock ID. + switch (BlockID) { + case CONTROL_BLOCK_ID: + if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) { + return true; + } else { + InControlBlock = true; + } + break; + + default: + if (Stream.SkipBlock()) + return true; + break; + } + continue; + } + + if (Code == llvm::bitc::END_BLOCK) { + if (Stream.ReadBlockEnd()) { + return true; + } + + InControlBlock = false; + continue; + } + + if (Code == llvm::bitc::DEFINE_ABBREV) { + Stream.ReadAbbrevRecord(); + continue; + } + + Record.clear(); + const char *BlobStart = 0; + unsigned BlobLen = 0; + unsigned RecCode = Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen); + if (InControlBlock) { + switch ((ControlRecordTypes)RecCode) { + case METADATA: { + if (Record[0] != VERSION_MAJOR) { + return true; + } + + const std::string &CurBranch = getClangFullRepositoryVersion(); + StringRef ASTBranch(BlobStart, BlobLen); + if (StringRef(CurBranch) != ASTBranch) + return true; + + break; + } + case LANGUAGE_OPTIONS: + if (ParseLanguageOptions(Record, false, Listener)) + return true; + break; + + case TARGET_OPTIONS: + if (ParseTargetOptions(Record, false, Listener)) + return true; + break; + + case DIAGNOSTIC_OPTIONS: + if (ParseDiagnosticOptions(Record, false, Listener)) + return true; + break; + + case FILE_SYSTEM_OPTIONS: + if (ParseFileSystemOptions(Record, false, Listener)) + return true; + break; + + case HEADER_SEARCH_OPTIONS: + if (ParseHeaderSearchOptions(Record, false, Listener)) + return true; + break; + + case PREPROCESSOR_OPTIONS: { + std::string IgnoredSuggestedPredefines; + if (ParsePreprocessorOptions(Record, false, Listener, + IgnoredSuggestedPredefines)) + return true; + break; + } + + default: + // No other validation to perform. + break; + } + } + } + + return false; +} + + +bool ASTReader::isAcceptableASTFile(StringRef Filename, + FileManager &FileMgr, + const LangOptions &LangOpts, + const TargetOptions &TargetOpts, + const PreprocessorOptions &PPOpts) { + SimplePCHValidator validator(LangOpts, TargetOpts, PPOpts, FileMgr); + return !readASTFileControlBlock(Filename, FileMgr, validator); +} + +bool ASTReader::ReadSubmoduleBlock(ModuleFile &F) { // Enter the submodule block. if (F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) { Error("malformed submodule block record in AST file"); - return Failure; + return true; } ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap(); @@ -3095,9 +3287,9 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { if (Code == llvm::bitc::END_BLOCK) { if (F.Stream.ReadBlockEnd()) { Error("error at end of submodule block in AST file"); - return Failure; + return true; } - return Success; + return false; } if (Code == llvm::bitc::ENTER_SUBBLOCK) { @@ -3105,7 +3297,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { F.Stream.ReadSubBlockID(); if (F.Stream.SkipBlock()) { Error("malformed block record in AST file"); - return Failure; + return true; } continue; } @@ -3126,12 +3318,12 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { case SUBMODULE_DEFINITION: { if (First) { Error("missing submodule metadata record at beginning of block"); - return Failure; + return true; } if (Record.size() < 7) { Error("malformed module definition"); - return Failure; + return true; } StringRef Name(BlobStart, BlobLen); @@ -3157,9 +3349,10 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { if (GlobalIndex >= SubmodulesLoaded.size() || SubmodulesLoaded[GlobalIndex]) { Error("too many submodules"); - return Failure; + return true; } + CurrentModule->setASTFile(F.File); CurrentModule->IsFromModuleFile = true; CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem; CurrentModule->InferSubmodules = InferSubmodules; @@ -3175,7 +3368,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { case SUBMODULE_UMBRELLA_HEADER: { if (First) { Error("missing submodule metadata record at beginning of block"); - return Failure; + return true; } if (!CurrentModule) @@ -3187,7 +3380,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { ModMap.setUmbrellaHeader(CurrentModule, Umbrella); else if (CurrentModule->getUmbrellaHeader() != Umbrella) { Error("mismatched umbrella headers in submodule"); - return Failure; + return true; } } break; @@ -3196,7 +3389,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { case SUBMODULE_HEADER: { if (First) { Error("missing submodule metadata record at beginning of block"); - return Failure; + return true; } if (!CurrentModule) @@ -3208,15 +3401,51 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { if (std::find(CurrentModule->Headers.begin(), CurrentModule->Headers.end(), File) == CurrentModule->Headers.end()) - ModMap.addHeader(CurrentModule, File); + ModMap.addHeader(CurrentModule, File, false); } break; } - + + case SUBMODULE_EXCLUDED_HEADER: { + if (First) { + Error("missing submodule metadata record at beginning of block"); + return true; + } + + if (!CurrentModule) + break; + + // FIXME: Be more lazy about this! + StringRef FileName(BlobStart, BlobLen); + if (const FileEntry *File = PP.getFileManager().getFile(FileName)) { + if (std::find(CurrentModule->Headers.begin(), + CurrentModule->Headers.end(), + File) == CurrentModule->Headers.end()) + ModMap.addHeader(CurrentModule, File, true); + } + break; + } + + case SUBMODULE_TOPHEADER: { + if (First) { + Error("missing submodule metadata record at beginning of block"); + return true; + } + + if (!CurrentModule) + break; + + // FIXME: Be more lazy about this! + StringRef FileName(BlobStart, BlobLen); + if (const FileEntry *File = PP.getFileManager().getFile(FileName)) + CurrentModule->TopHeaders.insert(File); + break; + } + case SUBMODULE_UMBRELLA_DIR: { if (First) { Error("missing submodule metadata record at beginning of block"); - return Failure; + return true; } if (!CurrentModule) @@ -3229,7 +3458,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { ModMap.setUmbrellaDir(CurrentModule, Umbrella); else if (CurrentModule->getUmbrellaDir() != Umbrella) { Error("mismatched umbrella directories in submodule"); - return Failure; + return true; } } break; @@ -3238,7 +3467,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { case SUBMODULE_METADATA: { if (!First) { Error("submodule metadata record not at beginning of block"); - return Failure; + return true; } First = false; @@ -3264,7 +3493,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { case SUBMODULE_IMPORTS: { if (First) { Error("missing submodule metadata record at beginning of block"); - return Failure; + return true; } if (!CurrentModule) @@ -3285,7 +3514,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { case SUBMODULE_EXPORTS: { if (First) { Error("missing submodule metadata record at beginning of block"); - return Failure; + return true; } if (!CurrentModule) @@ -3309,7 +3538,7 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { case SUBMODULE_REQUIRES: { if (First) { Error("missing submodule metadata record at beginning of block"); - return Failure; + return true; } if (!CurrentModule) @@ -3331,27 +3560,144 @@ ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) { /// them to the AST listener if one is set. /// /// \returns true if the listener deems the file unacceptable, false otherwise. -bool ASTReader::ParseLanguageOptions(const RecordData &Record) { - if (Listener) { - LangOptions LangOpts; - unsigned Idx = 0; +bool ASTReader::ParseLanguageOptions(const RecordData &Record, + bool Complain, + ASTReaderListener &Listener) { + LangOptions LangOpts; + unsigned Idx = 0; #define LANGOPT(Name, Bits, Default, Description) \ LangOpts.Name = Record[Idx++]; #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ LangOpts.set##Name(static_cast<LangOptions::Type>(Record[Idx++])); #include "clang/Basic/LangOptions.def" - ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++]; - VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx); - LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion); - - unsigned Length = Record[Idx++]; - LangOpts.CurrentModule.assign(Record.begin() + Idx, - Record.begin() + Idx + Length); - return Listener->ReadLanguageOptions(LangOpts); + ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++]; + VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx); + LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion); + + unsigned Length = Record[Idx++]; + LangOpts.CurrentModule.assign(Record.begin() + Idx, + Record.begin() + Idx + Length); + return Listener.ReadLanguageOptions(LangOpts, Complain); +} + +bool ASTReader::ParseTargetOptions(const RecordData &Record, + bool Complain, + ASTReaderListener &Listener) { + unsigned Idx = 0; + TargetOptions TargetOpts; + TargetOpts.Triple = ReadString(Record, Idx); + TargetOpts.CPU = ReadString(Record, Idx); + TargetOpts.ABI = ReadString(Record, Idx); + TargetOpts.CXXABI = ReadString(Record, Idx); + TargetOpts.LinkerVersion = ReadString(Record, Idx); + for (unsigned N = Record[Idx++]; N; --N) { + TargetOpts.FeaturesAsWritten.push_back(ReadString(Record, Idx)); + } + for (unsigned N = Record[Idx++]; N; --N) { + TargetOpts.Features.push_back(ReadString(Record, Idx)); } - return false; + return Listener.ReadTargetOptions(TargetOpts, Complain); +} + +bool ASTReader::ParseDiagnosticOptions(const RecordData &Record, bool Complain, + ASTReaderListener &Listener) { + DiagnosticOptions DiagOpts; + unsigned Idx = 0; +#define DIAGOPT(Name, Bits, Default) DiagOpts.Name = Record[Idx++]; +#define ENUM_DIAGOPT(Name, Type, Bits, Default) \ + DiagOpts.set##Name(static_cast<Type>(Record[Idx++])); +#include "clang/Basic/DiagnosticOptions.def" + + for (unsigned N = Record[Idx++]; N; --N) { + DiagOpts.Warnings.push_back(ReadString(Record, Idx)); + } + + return Listener.ReadDiagnosticOptions(DiagOpts, Complain); +} + +bool ASTReader::ParseFileSystemOptions(const RecordData &Record, bool Complain, + ASTReaderListener &Listener) { + FileSystemOptions FSOpts; + unsigned Idx = 0; + FSOpts.WorkingDir = ReadString(Record, Idx); + return Listener.ReadFileSystemOptions(FSOpts, Complain); +} + +bool ASTReader::ParseHeaderSearchOptions(const RecordData &Record, + bool Complain, + ASTReaderListener &Listener) { + HeaderSearchOptions HSOpts; + unsigned Idx = 0; + HSOpts.Sysroot = ReadString(Record, Idx); + + // Include entries. + for (unsigned N = Record[Idx++]; N; --N) { + std::string Path = ReadString(Record, Idx); + frontend::IncludeDirGroup Group + = static_cast<frontend::IncludeDirGroup>(Record[Idx++]); + bool IsUserSupplied = Record[Idx++]; + bool IsFramework = Record[Idx++]; + bool IgnoreSysRoot = Record[Idx++]; + bool IsInternal = Record[Idx++]; + bool ImplicitExternC = Record[Idx++]; + HSOpts.UserEntries.push_back( + HeaderSearchOptions::Entry(Path, Group, IsUserSupplied, IsFramework, + IgnoreSysRoot, IsInternal, ImplicitExternC)); + } + + // System header prefixes. + for (unsigned N = Record[Idx++]; N; --N) { + std::string Prefix = ReadString(Record, Idx); + bool IsSystemHeader = Record[Idx++]; + HSOpts.SystemHeaderPrefixes.push_back( + HeaderSearchOptions::SystemHeaderPrefix(Prefix, IsSystemHeader)); + } + + HSOpts.ResourceDir = ReadString(Record, Idx); + HSOpts.ModuleCachePath = ReadString(Record, Idx); + HSOpts.DisableModuleHash = Record[Idx++]; + HSOpts.UseBuiltinIncludes = Record[Idx++]; + HSOpts.UseStandardSystemIncludes = Record[Idx++]; + HSOpts.UseStandardCXXIncludes = Record[Idx++]; + HSOpts.UseLibcxx = Record[Idx++]; + + return Listener.ReadHeaderSearchOptions(HSOpts, Complain); +} + +bool ASTReader::ParsePreprocessorOptions(const RecordData &Record, + bool Complain, + ASTReaderListener &Listener, + std::string &SuggestedPredefines) { + PreprocessorOptions PPOpts; + unsigned Idx = 0; + + // Macro definitions/undefs + for (unsigned N = Record[Idx++]; N; --N) { + std::string Macro = ReadString(Record, Idx); + bool IsUndef = Record[Idx++]; + PPOpts.Macros.push_back(std::make_pair(Macro, IsUndef)); + } + + // Includes + for (unsigned N = Record[Idx++]; N; --N) { + PPOpts.Includes.push_back(ReadString(Record, Idx)); + } + + // Macro Includes + for (unsigned N = Record[Idx++]; N; --N) { + PPOpts.MacroIncludes.push_back(ReadString(Record, Idx)); + } + + PPOpts.UsePredefines = Record[Idx++]; + PPOpts.ImplicitPCHInclude = ReadString(Record, Idx); + PPOpts.ImplicitPTHInclude = ReadString(Record, Idx); + PPOpts.ObjCXXARCStandardLibrary = + static_cast<ObjCXXARCStandardLibraryKind>(Record[Idx++]); + SuggestedPredefines.clear(); + return Listener.ReadPreprocessorOptions(PPOpts, Complain, + SuggestedPredefines); } std::pair<ModuleFile *, unsigned> @@ -3365,6 +3711,23 @@ ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) { return std::make_pair(M, LocalIndex); } +std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator> +ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const { + if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord()) + return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID, + Mod.NumPreprocessedEntities); + + return std::make_pair(PreprocessingRecord::iterator(), + PreprocessingRecord::iterator()); +} + +std::pair<ASTReader::ModuleDeclIterator, ASTReader::ModuleDeclIterator> +ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) { + return std::make_pair(ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls), + ModuleDeclIterator(this, &Mod, + Mod.FileSortedDecls + Mod.NumFileSortedDecls)); +} + PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) { PreprocessedEntityID PPID = Index+1; std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index); @@ -3455,7 +3818,7 @@ PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) { InclusionDirective *ID = new (PPRec) InclusionDirective(PPRec, Kind, StringRef(BlobStart, Record[0]), - Record[1], + Record[1], Record[3], File, Range); return ID; @@ -3476,7 +3839,7 @@ PreprocessedEntityID ASTReader::findNextPreprocessedEntity( EndI = GlobalSLocOffsetMap.end(); SLocMapI != EndI; ++SLocMapI) { ModuleFile &M = *SLocMapI->second; if (M.NumPreprocessedEntities) - return getGlobalPreprocessedEntityID(M, M.BasePreprocessedEntityID); + return M.BasePreprocessedEntityID; } return getTotalNumPreprocessedEntities(); @@ -3559,8 +3922,7 @@ ASTReader::findBeginPreprocessedEntity(SourceLocation BLoc) const { if (PPI == pp_end) return findNextPreprocessedEntity(SLocMapI); - return getGlobalPreprocessedEntityID(M, - M.BasePreprocessedEntityID + (PPI - pp_begin)); + return M.BasePreprocessedEntityID + (PPI - pp_begin); } /// \brief Returns the first preprocessed entity ID that begins after \arg ELoc. @@ -3589,8 +3951,7 @@ ASTReader::findEndPreprocessedEntity(SourceLocation ELoc) const { if (PPI == pp_end) return findNextPreprocessedEntity(SLocMapI); - return getGlobalPreprocessedEntityID(M, - M.BasePreprocessedEntityID + (PPI - pp_begin)); + return M.BasePreprocessedEntityID + (PPI - pp_begin); } /// \brief Returns a pair of [Begin, End) indices of preallocated @@ -3681,14 +4042,31 @@ HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) { } void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) { + // FIXME: Make it work properly with modules. + llvm::SmallVector<DiagnosticsEngine::DiagState *, 32> DiagStates; for (ModuleIterator I = ModuleMgr.begin(), E = ModuleMgr.end(); I != E; ++I) { ModuleFile &F = *(*I); unsigned Idx = 0; + DiagStates.clear(); + assert(!Diag.DiagStates.empty()); + DiagStates.push_back(&Diag.DiagStates.front()); // the command-line one. while (Idx < F.PragmaDiagMappings.size()) { SourceLocation Loc = ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]); + unsigned DiagStateID = F.PragmaDiagMappings[Idx++]; + if (DiagStateID != 0) { + Diag.DiagStatePoints.push_back( + DiagnosticsEngine::DiagStatePoint(DiagStates[DiagStateID-1], + FullSourceLoc(Loc, SourceMgr))); + continue; + } + + assert(DiagStateID == 0); + // A new DiagState was created here. Diag.DiagStates.push_back(*Diag.GetCurDiagState()); + DiagnosticsEngine::DiagState *NewState = &Diag.DiagStates.back(); + DiagStates.push_back(NewState); Diag.DiagStatePoints.push_back( - DiagnosticsEngine::DiagStatePoint(&Diag.DiagStates.back(), + DiagnosticsEngine::DiagStatePoint(NewState, FullSourceLoc(Loc, SourceMgr))); while (1) { assert(Idx < F.PragmaDiagMappings.size() && @@ -4258,6 +4636,8 @@ void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) { } void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) { TL.setLocalRangeBegin(ReadSourceLocation(Record, Idx)); + TL.setLParenLoc(ReadSourceLocation(Record, Idx)); + TL.setRParenLoc(ReadSourceLocation(Record, Idx)); TL.setLocalRangeEnd(ReadSourceLocation(Record, Idx)); for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) { TL.setArg(i, ReadDeclAs<ParmVarDecl>(Record, Idx)); @@ -4467,6 +4847,10 @@ QualType ASTReader::GetType(TypeID ID) { case PREDEF_TYPE_VA_LIST_TAG: T = Context.getVaListTagType(); break; + + case PREDEF_TYPE_BUILTIN_FN: + T = Context.BuiltinFnTy; + break; } assert(!T.isNull() && "Unknown predefined type"); @@ -4537,7 +4921,9 @@ ASTReader::GetTemplateArgumentLocInfo(ModuleFile &F, case TemplateArgument::Null: case TemplateArgument::Integral: case TemplateArgument::Declaration: + case TemplateArgument::NullPtr: case TemplateArgument::Pack: + // FIXME: Is this right? return TemplateArgumentLocInfo(); } llvm_unreachable("unexpected template argument loc"); @@ -4593,7 +4979,7 @@ CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) { } serialization::DeclID -ASTReader::getGlobalDeclID(ModuleFile &F, unsigned LocalID) const { +ASTReader::getGlobalDeclID(ModuleFile &F, LocalDeclID LocalID) const { if (LocalID < NUM_PREDEF_DECL_IDS) return LocalID; @@ -4930,8 +5316,10 @@ namespace { continue; if (ND->getDeclName() != This->Name) { - assert(!This->Name.getCXXNameType().isNull() && - "Name mismatch without a type"); + // A name might be null because the decl's redeclarable part is + // currently read before reading its name. The lookup is triggered by + // building that decl (likely indirectly), and so it is later in the + // sense of "already existing" and can be ignored here. continue; } @@ -5132,13 +5520,15 @@ void ASTReader::PrintStats() { = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(), IdentifiersLoaded.end(), (IdentifierInfo *)0); + unsigned NumMacrosLoaded + = MacrosLoaded.size() - std::count(MacrosLoaded.begin(), + MacrosLoaded.end(), + (MacroInfo *)0); unsigned NumSelectorsLoaded = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(), SelectorsLoaded.end(), Selector()); - std::fprintf(stderr, " %u stat cache hits\n", NumStatHits); - std::fprintf(stderr, " %u stat cache misses\n", NumStatMisses); if (unsigned TotalNumSLocEntries = getTotalNumSLocs()) std::fprintf(stderr, " %u/%u source location entries read (%f%%)\n", NumSLocEntriesRead, TotalNumSLocEntries, @@ -5155,6 +5545,10 @@ void ASTReader::PrintStats() { std::fprintf(stderr, " %u/%u identifiers read (%f%%)\n", NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(), ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100)); + if (!MacrosLoaded.empty()) + std::fprintf(stderr, " %u/%u macros read (%f%%)\n", + NumMacrosLoaded, (unsigned)MacrosLoaded.size(), + ((float)NumMacrosLoaded/MacrosLoaded.size() * 100)); if (!SelectorsLoaded.empty()) std::fprintf(stderr, " %u/%u selectors read (%f%%)\n", NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(), @@ -5213,6 +5607,7 @@ void ASTReader::dump() { dumpModuleIDMap("Global type map", GlobalTypeMap); dumpModuleIDMap("Global declaration map", GlobalDeclMap); dumpModuleIDMap("Global identifier map", GlobalIdentifierMap); + dumpModuleIDMap("Global macro map", GlobalMacroMap); dumpModuleIDMap("Global submodule map", GlobalSubmoduleMap); dumpModuleIDMap("Global selector map", GlobalSelectorMap); dumpModuleIDMap("Global preprocessed entity map", @@ -5246,7 +5641,7 @@ void ASTReader::getMemoryBufferSizes(MemoryBufferSizes &sizes) const { void ASTReader::InitializeSema(Sema &S) { SemaObj = &S; - S.ExternalSource = this; + S.addExternalSource(this); // Makes sure any declarations that were deserialized "too early" // still get added to the identifier's declaration chains. @@ -5281,6 +5676,9 @@ void ASTReader::InitializeSema(Sema &S) { } IdentifierInfo* ASTReader::get(const char *NameStart, const char *NameEnd) { + // Note that we are loading an identifier. + Deserializing AnIdentifier(this); + IdentifierLookupVisitor Visitor(StringRef(NameStart, NameEnd - NameStart), /*PriorGeneration=*/0); ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor); @@ -5570,6 +5968,7 @@ void ASTReader::ReadPendingInstantiations( ValueDecl *D = cast<ValueDecl>(GetDecl(PendingInstantiations[Idx++])); SourceLocation Loc = SourceLocation::getFromRawEncoding(PendingInstantiations[Idx++]); + Pending.push_back(std::make_pair(D, Loc)); } PendingInstantiations.clear(); @@ -5682,8 +6081,37 @@ IdentifierID ASTReader::getGlobalIdentifierID(ModuleFile &M, unsigned LocalID) { return LocalID + I->second; } -bool ASTReader::ReadSLocEntry(int ID) { - return ReadSLocEntryRecord(ID) != Success; +MacroInfo *ASTReader::getMacro(MacroID ID, MacroInfo *Hint) { + if (ID == 0) + return 0; + + if (MacrosLoaded.empty()) { + Error("no macro table in AST file"); + return 0; + } + + ID -= NUM_PREDEF_MACRO_IDS; + if (!MacrosLoaded[ID]) { + GlobalMacroMapType::iterator I + = GlobalMacroMap.find(ID + NUM_PREDEF_MACRO_IDS); + assert(I != GlobalMacroMap.end() && "Corrupted global macro map"); + ModuleFile *M = I->second; + unsigned Index = ID - M->BaseMacroID; + ReadMacroRecord(*M, M->MacroOffsets[Index], Hint); + } + + return MacrosLoaded[ID]; +} + +MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) { + if (LocalID < NUM_PREDEF_MACRO_IDS) + return LocalID; + + ContinuousRangeMap<uint32_t, int, 2>::iterator I + = M.MacroRemap.find(LocalID - NUM_PREDEF_MACRO_IDS); + assert(I != M.MacroRemap.end() && "Invalid index into macro index remap"); + + return LocalID + I->second; } serialization::SubmoduleID @@ -5694,7 +6122,7 @@ ASTReader::getGlobalSubmoduleID(ModuleFile &M, unsigned LocalID) { ContinuousRangeMap<uint32_t, int, 2>::iterator I = M.SubmoduleRemap.find(LocalID - NUM_PREDEF_SUBMODULE_IDS); assert(I != M.SubmoduleRemap.end() - && "Invalid index into identifier index remap"); + && "Invalid index into submodule index remap"); return LocalID + I->second; } @@ -5759,7 +6187,7 @@ ASTReader::getGlobalSelectorID(ModuleFile &M, unsigned LocalID) const { ContinuousRangeMap<uint32_t, int, 2>::iterator I = M.SelectorRemap.find(LocalID - NUM_PREDEF_SELECTOR_IDS); assert(I != M.SelectorRemap.end() - && "Invalid index into identifier index remap"); + && "Invalid index into selector index remap"); return LocalID + I->second; } @@ -5926,8 +6354,13 @@ ASTReader::ReadTemplateArgument(ModuleFile &F, return TemplateArgument(); case TemplateArgument::Type: return TemplateArgument(readType(F, Record, Idx)); - case TemplateArgument::Declaration: - return TemplateArgument(ReadDecl(F, Record, Idx)); + case TemplateArgument::Declaration: { + ValueDecl *D = ReadDeclAs<ValueDecl>(F, Record, Idx); + bool ForReferenceParam = Record[Idx++]; + return TemplateArgument(D, ForReferenceParam); + } + case TemplateArgument::NullPtr: + return TemplateArgument(readType(F, Record, Idx), /*isNullPtr*/true); case TemplateArgument::Integral: { llvm::APSInt Value = ReadAPSInt(Record, Idx); QualType T = readType(F, Record, Idx); @@ -6340,7 +6773,8 @@ void ASTReader::ReadComments() { } void ASTReader::finishPendingActions() { - while (!PendingIdentifierInfos.empty() || !PendingDeclChains.empty()) { + while (!PendingIdentifierInfos.empty() || !PendingDeclChains.empty() || + !PendingMacroIDs.empty()) { // If any identifiers with corresponding top-level declarations have // been loaded, load those declarations now. while (!PendingIdentifierInfos.empty()) { @@ -6355,6 +6789,18 @@ void ASTReader::finishPendingActions() { PendingDeclChainsKnown.erase(PendingDeclChains[I]); } PendingDeclChains.clear(); + + // Load any pending macro definitions. + for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) { + // FIXME: std::move here + SmallVector<MacroID, 2> GlobalIDs = PendingMacroIDs.begin()[I].second; + MacroInfo *Hint = 0; + for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs; + ++IDIdx) { + Hint = getMacro(GlobalIDs[IDIdx], Hint); + } + } + PendingMacroIDs.clear(); } // If we deserialized any C++ or Objective-C class definitions, any @@ -6408,9 +6854,29 @@ void ASTReader::finishPendingActions() { for (RedeclarableTemplateDecl::redecl_iterator R = RTD->redecls_begin(), REnd = RTD->redecls_end(); R != REnd; ++R) - R->Common = RTD->Common; + R->Common = RTD->Common; } PendingDefinitions.clear(); + + // Load the bodies of any functions or methods we've encountered. We do + // this now (delayed) so that we can be sure that the declaration chains + // have been fully wired up. + for (PendingBodiesMap::iterator PB = PendingBodies.begin(), + PBEnd = PendingBodies.end(); + PB != PBEnd; ++PB) { + if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) { + // FIXME: Check for =delete/=default? + // FIXME: Complain about ODR violations here? + if (!getContext().getLangOpts().Modules || !FD->hasBody()) + FD->setLazyBody(PB->second); + continue; + } + + ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first); + if (!getContext().getLangOpts().Modules || !MD->hasBody()) + MD->setLazyBody(PB->second); + } + PendingBodies.clear(); } void ASTReader::FinishedDeserializing() { @@ -6442,17 +6908,14 @@ void ASTReader::FinishedDeserializing() { ASTReader::ASTReader(Preprocessor &PP, ASTContext &Context, StringRef isysroot, bool DisableValidation, - bool DisableStatCache, bool AllowASTWithCompilerErrors) + bool AllowASTWithCompilerErrors) : Listener(new PCHValidator(PP, *this)), DeserializationListener(0), SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()), Diags(PP.getDiagnostics()), SemaObj(0), PP(PP), Context(Context), - Consumer(0), ModuleMgr(FileMgr.getFileSystemOptions()), - RelocatablePCH(false), isysroot(isysroot), - DisableValidation(DisableValidation), - DisableStatCache(DisableStatCache), + Consumer(0), ModuleMgr(PP.getFileManager()), + isysroot(isysroot), DisableValidation(DisableValidation), AllowASTWithCompilerErrors(AllowASTWithCompilerErrors), CurrentGeneration(0), CurrSwitchCaseStmts(&SwitchCaseStmts), - NumStatHits(0), NumStatMisses(0), NumSLocEntriesRead(0), TotalNumSLocEntries(0), NumStatementsRead(0), TotalNumStatements(0), NumMacrosRead(0), TotalNumMacros(0), NumSelectorsRead(0), NumMethodPoolEntriesRead(0), |
