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APValue.cpp
(23.33 KB)
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ASTConcept.cpp
(2.7 KB)
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ASTConsumer.cpp
(954 B)
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ASTContext.cpp
(407.36 KB)
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ASTDiagnostic.cpp
(75.78 KB)
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ASTDumper.cpp
(9.52 KB)
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ASTImporter.cpp
(323.93 KB)
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ASTImporterLookupTable.cpp
(4.85 KB)
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ASTStructuralEquivalence.cpp
(73.55 KB)
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ASTTypeTraits.cpp
(6.42 KB)
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AttrImpl.cpp
(5.3 KB)
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CXXABI.h
(2.66 KB)
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CXXInheritance.cpp
(28.55 KB)
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Comment.cpp
(11.94 KB)
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CommentBriefParser.cpp
(4.19 KB)
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CommentCommandTraits.cpp
(4.63 KB)
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CommentLexer.cpp
(25.38 KB)
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CommentParser.cpp
(23.52 KB)
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CommentSema.cpp
(40.88 KB)
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ComparisonCategories.cpp
(7.23 KB)
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ComputeDependence.cpp
(28.3 KB)
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DataCollection.cpp
(1.83 KB)
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Decl.cpp
(177.21 KB)
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DeclBase.cpp
(63.37 KB)
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DeclCXX.cpp
(127.53 KB)
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DeclFriend.cpp
(2.76 KB)
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DeclGroup.cpp
(1.16 KB)
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DeclObjC.cpp
(82.05 KB)
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DeclOpenMP.cpp
(10.04 KB)
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DeclPrinter.cpp
(52.6 KB)
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DeclTemplate.cpp
(57.75 KB)
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DeclarationName.cpp
(17.52 KB)
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Expr.cpp
(176.93 KB)
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ExprCXX.cpp
(69.03 KB)
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ExprClassification.cpp
(28.48 KB)
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ExprConcepts.cpp
(9.43 KB)
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ExprConstant.cpp
(538.88 KB)
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ExprObjC.cpp
(14.25 KB)
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ExternalASTMerger.cpp
(22.13 KB)
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ExternalASTSource.cpp
(3.85 KB)
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FormatString.cpp
(29.64 KB)
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FormatStringParsing.h
(3.17 KB)
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InheritViz.cpp
(5.1 KB)
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Interp
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ItaniumCXXABI.cpp
(8.92 KB)
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ItaniumMangle.cpp
(182.64 KB)
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JSONNodeDumper.cpp
(58.07 KB)
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Linkage.h
(6 KB)
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Mangle.cpp
(17.71 KB)
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MicrosoftCXXABI.cpp
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MicrosoftMangle.cpp
(133.01 KB)
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NSAPI.cpp
(18.12 KB)
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NestedNameSpecifier.cpp
(23.31 KB)
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ODRHash.cpp
(29.78 KB)
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OSLog.cpp
(7.61 KB)
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OpenMPClause.cpp
(82.03 KB)
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ParentMap.cpp
(5.97 KB)
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ParentMapContext.cpp
(10.7 KB)
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PrintfFormatString.cpp
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QualTypeNames.cpp
(18.46 KB)
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RawCommentList.cpp
(15.52 KB)
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RecordLayout.cpp
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RecordLayoutBuilder.cpp
(132.78 KB)
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ScanfFormatString.cpp
(18.62 KB)
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SelectorLocationsKind.cpp
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Stmt.cpp
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StmtCXX.cpp
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StmtIterator.cpp
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StmtObjC.cpp
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StmtOpenMP.cpp
(98.6 KB)
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StmtPrinter.cpp
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StmtProfile.cpp
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StmtViz.cpp
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TemplateBase.cpp
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TemplateName.cpp
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TextNodeDumper.cpp
(61.83 KB)
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Type.cpp
(144.42 KB)
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TypeLoc.cpp
(20.52 KB)
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TypePrinter.cpp
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VTTBuilder.cpp
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VTableBuilder.cpp
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Editing: OSLog.cpp
// TODO: header template #include "clang/AST/OSLog.h" #include "clang/AST/Attr.h" #include "clang/AST/Decl.h" #include "clang/AST/DeclCXX.h" #include "clang/AST/ExprObjC.h" #include "clang/AST/FormatString.h" #include "clang/Basic/Builtins.h" #include "llvm/ADT/SmallBitVector.h" using namespace clang; using clang::analyze_os_log::OSLogBufferItem; using clang::analyze_os_log::OSLogBufferLayout; namespace { class OSLogFormatStringHandler : public analyze_format_string::FormatStringHandler { private: struct ArgData { const Expr *E = nullptr; Optional<OSLogBufferItem::Kind> Kind; Optional<unsigned> Size; Optional<const Expr *> Count; Optional<const Expr *> Precision; Optional<const Expr *> FieldWidth; unsigned char Flags = 0; StringRef MaskType; }; SmallVector<ArgData, 4> ArgsData; ArrayRef<const Expr *> Args; OSLogBufferItem::Kind getKind(analyze_format_string::ConversionSpecifier::Kind K) { switch (K) { case clang::analyze_format_string::ConversionSpecifier::sArg: // "%s" return OSLogBufferItem::StringKind; case clang::analyze_format_string::ConversionSpecifier::SArg: // "%S" return OSLogBufferItem::WideStringKind; case clang::analyze_format_string::ConversionSpecifier::PArg: { // "%P" return OSLogBufferItem::PointerKind; case clang::analyze_format_string::ConversionSpecifier::ObjCObjArg: // "%@" return OSLogBufferItem::ObjCObjKind; case clang::analyze_format_string::ConversionSpecifier::PrintErrno: // "%m" return OSLogBufferItem::ErrnoKind; default: return OSLogBufferItem::ScalarKind; } } } public: OSLogFormatStringHandler(ArrayRef<const Expr *> Args) : Args(Args) { ArgsData.reserve(Args.size()); } bool HandlePrintfSpecifier(const analyze_printf::PrintfSpecifier &FS, const char *StartSpecifier, unsigned SpecifierLen) override { if (!FS.consumesDataArgument() && FS.getConversionSpecifier().getKind() != clang::analyze_format_string::ConversionSpecifier::PrintErrno) return true; ArgsData.emplace_back(); unsigned ArgIndex = FS.getArgIndex(); if (ArgIndex < Args.size()) ArgsData.back().E = Args[ArgIndex]; // First get the Kind ArgsData.back().Kind = getKind(FS.getConversionSpecifier().getKind()); if (ArgsData.back().Kind != OSLogBufferItem::ErrnoKind && !ArgsData.back().E) { // missing argument ArgsData.pop_back(); return false; } switch (FS.getConversionSpecifier().getKind()) { case clang::analyze_format_string::ConversionSpecifier::sArg: // "%s" case clang::analyze_format_string::ConversionSpecifier::SArg: { // "%S" auto &precision = FS.getPrecision(); switch (precision.getHowSpecified()) { case clang::analyze_format_string::OptionalAmount::NotSpecified: // "%s" break; case clang::analyze_format_string::OptionalAmount::Constant: // "%.16s" ArgsData.back().Size = precision.getConstantAmount(); break; case clang::analyze_format_string::OptionalAmount::Arg: // "%.*s" ArgsData.back().Count = Args[precision.getArgIndex()]; break; case clang::analyze_format_string::OptionalAmount::Invalid: return false; } break; } case clang::analyze_format_string::ConversionSpecifier::PArg: { // "%P" auto &precision = FS.getPrecision(); switch (precision.getHowSpecified()) { case clang::analyze_format_string::OptionalAmount::NotSpecified: // "%P" return false; // length must be supplied with pointer format specifier case clang::analyze_format_string::OptionalAmount::Constant: // "%.16P" ArgsData.back().Size = precision.getConstantAmount(); break; case clang::analyze_format_string::OptionalAmount::Arg: // "%.*P" ArgsData.back().Count = Args[precision.getArgIndex()]; break; case clang::analyze_format_string::OptionalAmount::Invalid: return false; } break; } default: if (FS.getPrecision().hasDataArgument()) { ArgsData.back().Precision = Args[FS.getPrecision().getArgIndex()]; } break; } if (FS.getFieldWidth().hasDataArgument()) { ArgsData.back().FieldWidth = Args[FS.getFieldWidth().getArgIndex()]; } if (FS.isSensitive()) ArgsData.back().Flags |= OSLogBufferItem::IsSensitive; else if (FS.isPrivate()) ArgsData.back().Flags |= OSLogBufferItem::IsPrivate; else if (FS.isPublic()) ArgsData.back().Flags |= OSLogBufferItem::IsPublic; ArgsData.back().MaskType = FS.getMaskType(); return true; } void computeLayout(ASTContext &Ctx, OSLogBufferLayout &Layout) const { Layout.Items.clear(); for (auto &Data : ArgsData) { if (!Data.MaskType.empty()) { CharUnits Size = CharUnits::fromQuantity(8); Layout.Items.emplace_back(OSLogBufferItem::MaskKind, nullptr, Size, 0, Data.MaskType); } if (Data.FieldWidth) { CharUnits Size = Ctx.getTypeSizeInChars((*Data.FieldWidth)->getType()); Layout.Items.emplace_back(OSLogBufferItem::ScalarKind, *Data.FieldWidth, Size, 0); } if (Data.Precision) { CharUnits Size = Ctx.getTypeSizeInChars((*Data.Precision)->getType()); Layout.Items.emplace_back(OSLogBufferItem::ScalarKind, *Data.Precision, Size, 0); } if (Data.Count) { // "%.*P" has an extra "count" that we insert before the argument. CharUnits Size = Ctx.getTypeSizeInChars((*Data.Count)->getType()); Layout.Items.emplace_back(OSLogBufferItem::CountKind, *Data.Count, Size, 0); } if (Data.Size) Layout.Items.emplace_back(Ctx, CharUnits::fromQuantity(*Data.Size), Data.Flags); if (Data.Kind) { CharUnits Size; if (*Data.Kind == OSLogBufferItem::ErrnoKind) Size = CharUnits::Zero(); else Size = Ctx.getTypeSizeInChars(Data.E->getType()); Layout.Items.emplace_back(*Data.Kind, Data.E, Size, Data.Flags); } else { auto Size = Ctx.getTypeSizeInChars(Data.E->getType()); Layout.Items.emplace_back(OSLogBufferItem::ScalarKind, Data.E, Size, Data.Flags); } } } }; } // end anonymous namespace bool clang::analyze_os_log::computeOSLogBufferLayout( ASTContext &Ctx, const CallExpr *E, OSLogBufferLayout &Layout) { ArrayRef<const Expr *> Args(E->getArgs(), E->getArgs() + E->getNumArgs()); const Expr *StringArg; ArrayRef<const Expr *> VarArgs; switch (E->getBuiltinCallee()) { case Builtin::BI__builtin_os_log_format_buffer_size: assert(E->getNumArgs() >= 1 && "__builtin_os_log_format_buffer_size takes at least 1 argument"); StringArg = E->getArg(0); VarArgs = Args.slice(1); break; case Builtin::BI__builtin_os_log_format: assert(E->getNumArgs() >= 2 && "__builtin_os_log_format takes at least 2 arguments"); StringArg = E->getArg(1); VarArgs = Args.slice(2); break; default: llvm_unreachable("non-os_log builtin passed to computeOSLogBufferLayout"); } const StringLiteral *Lit = cast<StringLiteral>(StringArg->IgnoreParenCasts()); assert(Lit && (Lit->isAscii() || Lit->isUTF8())); StringRef Data = Lit->getString(); OSLogFormatStringHandler H(VarArgs); ParsePrintfString(H, Data.begin(), Data.end(), Ctx.getLangOpts(), Ctx.getTargetInfo(), /*isFreeBSDKPrintf*/ false); H.computeLayout(Ctx, Layout); return true; }
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